Remote constant temperature regulation method of electric heating cap internet of things control system

Abstract

The present application relates to programmable control and Internet of Things temperature regulation technical field, specifically relates to a kind of remote constant temperature regulation method of electric heating cap Internet of Things control system.The method divides electric heating cap heating layer into multiple independently adjustable heating regions, receives overall target temperature issued by cloud platform, and collects the contact state sequence and temperature sequence of each region;Determine the thermal coupling state according to the consistent relationship between contact change and temperature response, correct the regional temperature deviation according to the thermal coupling state and generate heat demand;Unallocated demand of weakly attached or detached region is distributed to stable attached region with unmet demand along the confirmed heat transfer direction, and heating output is adjusted respectively;According to the deviation between actual response and expected response after output change, update thermal coupling state and subsequent demand.Therefore, regional heating distribution corresponds to actual wearing heat transfer boundary, reduces heat accumulation in detached region and insufficient heating in attached region, and reduces control reciprocation caused by short-time contact fluctuation.

Description

Technical Field

[0001] This invention relates to the fields of programmable control and Internet of Things (IoT) temperature regulation technology, specifically to a remote constant temperature regulation method for an IoT control system of an electric heating cap. Background Technology

[0002] Electric heating caps are used to continuously heat the head area while worn. Their IoT control system typically consists of a temperature sensing device, a controller, a wireless communication device, and a heating drive circuit. During operation, the temperature sensing device periodically collects the temperature of the heating layer or inner lining surface of the cap, and the controller uploads the data to a cloud platform. Users set a target temperature via a remote terminal, and the cloud platform, after device identification and command forwarding, sends the target temperature to the electric heating cap. The controller compares the target temperature with the detected temperature and adjusts the heating output accordingly, energizing the heating wire when the temperature is insufficient and reducing or stopping the output when the set temperature is reached. Some systems also save the most recent remote setting and continue local temperature adjustment during communication interruptions to maintain the continuity of the heating process.

[0003] To improve the uneven heating of different parts of the hat, existing systems can divide the heating layer into several heating zones, arrange temperature detection points in each zone, and determine the heating output using the average, maximum, or zone temperature difference of multiple detected temperatures. The target temperature sent by the remote terminal is usually directly used as the common control target for all heating zones. The controller compares the detected temperature of each zone with the target temperature and then controls the power devices in the corresponding zone according to the comparison result. This type of control process mainly establishes a feedback relationship based on temperature measurement results. The heating distribution between zones is usually determined by preset levels or fixed control rules, and it assumes that the temperature detection points maintain relatively stable contact and heat transfer conditions with the human head. It does not include changes in the heat transfer boundary caused by hat wrinkles, wearing misalignment, or local suspension in the interpretation of feedback information.

[0004] Electric heating caps are flexible garments, and the degree of contact between different heating areas and the head changes with posture and cap deformation during use. When a heating area partially detaches, the detected temperature may primarily reflect the heat accumulated in the heating layer itself; conversely, when the contact area dissipates heat more quickly, the detected temperature may be lower than adjacent areas. Simply comparing the area temperature with a uniform target temperature cannot determine whether the temperature difference is caused by the body's actual heat demand or by changes in contact conditions, thus failing to establish a corresponding regional heat demand based on the actual heat transfer state. The challenge lies in identifying the thermal coupling relationship between each heating area and its changing wearing state during remote target temperature control, and adjusting the regional heating distribution accordingly, so that the detected temperature reflects the actual heat transfer process in the areas of contact with the body. Summary of the Invention

[0005] The purpose of this invention is to provide a remote constant temperature regulation method for an IoT control system of an electric heating cap, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A remote constant temperature regulation method for an IoT control system of an electric heating cap is proposed, which divides the heating layer of the electric heating cap into multiple independently adjustable heating zones, obtains the overall target temperature sent by the cloud platform, and synchronously collects the contact state sequence and temperature sequence for each heating zone. Based on the consistent relationship between the changing trends of the contact state sequence and the temperature sequence, the thermal coupling state of each heating zone is determined; Based on the thermal coupling state, the overall target temperature is converted into the heat demand of each heating zone, and the heating output of the corresponding heating zone is adjusted according to the heat demand. The thermal coupling state is updated using the adjusted temperature sequence, and the subsequent heat demand is corrected based on the updated thermal coupling state, forming a closed-loop constant temperature regulation for changes in wearing status.

[0007] Preferably, the determination of the thermal coupling state includes: extracting the contact change direction of the contact state sequence and the temperature response direction of the temperature sequence relative to the heating output in each control cycle; associating the contact change direction, temperature response direction of the same heating area and the temperature response direction of adjacent heating areas; generating thermal coupling confidence information based on the combination of the three directions; and determining a stable bonding state, a weak bonding state, or a detachment state according to the thermal coupling confidence information of the continuous control cycle.

[0008] Preferably, the conversion of the overall target temperature into the heat demand of each heating zone includes: determining the regional temperature deviation relative to the overall target temperature based on the temperature sequence of each heating zone, correcting the regional temperature deviation according to the thermal coupling state, and forming regional heat demand weights. Heating output is allocated according to the heat demand weight of the area, and the unallocated heat demand corresponding to the weak bonding state or the detached state is transferred to the heating area with unmet heat demand and in the stable bonding state.

[0009] Preferably, updating the thermal coupling state using the adjusted temperature sequence includes: recording temperature sequence segments of each heating region before and after the change in heating output; determining the expected response direction of the corresponding temperature sequence segment based on the direction of change in heating output; calculating the response deviation between the actual response direction and the expected response direction; associating the response deviation with the synchronous contact state sequence; and updating the thermal coupling state of the corresponding heating region based on the association result.

[0010] Preferably, when generating the thermal coupling confidence information, the temperature changes of the target heating area and the adjacent heating area within the same control cycle are differentially analyzed to form an inter-region temperature propagation sequence; The change direction of the temperature propagation sequence between the regions is paired with the contact change direction of the target heating region, and the thermal coupling confidence information obtained from the temperature response direction of the target heating region itself is corrected by the pairing result. Then, the thermal coupling state is determined by using the corrected thermal coupling confidence information.

[0011] Preferably, a state transition sequence is constructed from the thermal coupling confidence information of the continuous control cycle in chronological order, and the transition direction between the stable bonding state, the weak bonding state, and the detachment state is recorded in the state transition sequence; When the direction combination of the current control cycle is inconsistent with the previous thermal coupling state, the previous thermal coupling state is retained and written into the candidate state. The thermal coupling state transition is completed based on the continuous correspondence between the candidate state and the temperature response direction in subsequent control cycles.

[0012] Preferably, the transfer of unallocated heat demand includes: establishing an adjacency relationship characterizing the direction of heat transfer between regions based on the response sequence of the temperature sequences of adjacent heating regions after the change in heating output; The transferable demand is separated from the heat demand of the area corresponding to the weak bonding state or the detached state, and distributed to the adjacent heating area of ​​the stable bonding state along the adjacency relationship. The distribution result is corrected by the area temperature deviation of the receiving area.

[0013] Preferably, associating the response deviation with the synchronous contact state sequence includes: segmenting the contact state sequence before and after the heating output change time to obtain the contact state before the output change and the contact state after the output change, respectively. When the two contact states are consistent, the temperature response relationship of the corresponding heating area is updated using the response deviation. When the two contact states change, the response deviation is written into the changed thermal coupling state and used to correct the expected response direction of the subsequent control cycle.

[0014] Preferably, when updating the adjacency relationship, the heating output change event of each adjacent heating area is matched with the response start segment in the corresponding temperature sequence, the heat transfer direction is determined according to the order of the matched responses, and the adjacency relationship is retained or replaced based on the consistency of the heat transfer direction in the continuous events. When the adjacency is replaced, any unexecuted transferable requests are withdrawn and redistributed along the replaced adjacency.

[0015] Preferably, when correcting the expected response direction of the subsequent control cycle, the deviation segment synchronized with the contact state transition and the deviation segment synchronized with the heating output change are separated from the response deviation. The former is used to update the temperature response relationship corresponding to the thermal coupling state after the transition, and the latter is used to update the response relationship between the heating output and the temperature change. The two updated response relationships are used together to generate the expected response direction of the next control cycle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By synchronously acquiring the contact state sequence and temperature sequence of each heating zone, and correlating the contact change direction, the zone temperature response direction, and the temperature propagation relationship between adjacent zones, a thermal coupling state that updates with changes in wearing status can be formed. The overall target temperature is converted into regional heat demand based on the thermal coupling state. Unallocated heat demand corresponding to weakly fitted or detached zones is transferred along the inter-zone heat transfer direction to stable fitted zones where unmet heat demand exists, ensuring that the spatial distribution of heating output corresponds to the actual heat transfer boundary of the hat. Therefore, when the temperature in a detached zone rises, it will not continue to heat as if the human body is underheated, and the fitted zone can also receive heating output matching its temperature deviation, reducing local heat accumulation and insufficient regional heating caused by deformation of the flexible hat body. This ensures that the remotely set temperature corresponds to a more consistent actual heating state under different wearing states.

[0017] 2. By utilizing temperature sequence segments before and after the heating output change to determine the expected response direction, and associating the response deviation between the actual and expected response directions with the contact state sequence, the thermal coupling state and regional temperature response relationship can be corrected within a continuous control cycle. The differential results of temperature changes in adjacent regions are used to correct the thermal coupling confidence information generated in a single region. Candidate states are combined with the continuous correspondence of subsequent temperature responses to complete state transitions, avoiding direct changes in regional heating allocation due to a single contact disturbance. The adjacency relationship between regions can also be continuously updated based on the sequence of heating output events and the initial segment of the temperature response. When the heat transfer direction changes, unexecuted transfer requests are withdrawn and redistributed, ensuring that thermal coupling identification, heat demand conversion, and heating feedback are in the same closed-loop control chain, reducing control back-and-forth caused by short-term fluctuations in the contact state. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the overall process of remote constant temperature regulation of the electric heating cap according to the present invention. Figure 2 This is a flowchart illustrating the overall process of remote constant temperature regulation of the electric heating cap according to the present invention. Figure 3 This is a thermal coupling confidence plot of the present invention; Figure 4 This is a flowchart of the regional heat demand allocation and feedback correction process of the present invention; Figure 5 This is a heat demand transfer diagram of the present invention; Figure 6 Update the response relationship graph for the present invention. Detailed Implementation

[0019] Please refer to Figure 1 In one embodiment, a remote constant temperature regulation method for an IoT control system of an electric heating cap is provided. The heating layer of the electric heating cap is divided into multiple independently adjustable heating zones. The overall target temperature is obtained from the cloud platform, and contact state sequences and temperature sequences are collected synchronously for each heating zone. Based on the consistency between the changing trends of the contact state sequences and temperature sequences, the thermal coupling state of each heating zone is determined. The overall target temperature is converted into the heat demand of each heating zone according to the thermal coupling state, and the heating output of the corresponding heating zone is adjusted according to the heat demand. The thermal coupling state is updated using the adjusted temperature sequence, and the subsequent heat demand is corrected based on the updated thermal coupling state, forming a closed-loop constant temperature regulation for changes in wearing status.

[0020] In this embodiment, the electric heating cap includes a flexible cap body, a heating layer distributed along the inner surface of the cap body, an insulating and thermally conductive layer disposed adjacent to the heating layer, and a flexible substrate for supporting the detection device. The heating layer is divided into multiple heating areas according to the spatial location of the top of the head, the side of the forehead, the side of the temples, and the back of the head. Each heating area has an independent power supply branch and a heating output command is written to it by the controller. The controller sets up an area identification table, which records the temperature acquisition channel, contact acquisition channel, power drive channel, and adjacent area identification corresponding to each heating area, so that temperature data, contact data, and heating output records generated at the same physical location can be associated according to the area identification. Each power supply branch is controlled by an adjustable power switch. The controller converts the calculated area heat demand into the conduction time sequence of the corresponding branch, and the conversion process retains the area identification and control cycle identification for subsequent feedback processing.

[0021] Specifically, each heating zone corresponds to at least one temperature detection position and one contact detection position. The temperature detection position is located on the side of the heating layer facing the head to generate temperature sampling values ​​that reflect the heat transfer process in the zone. The contact detection position can use a flexible pressure detection structure, a capacitance change detection structure, or a pressure resistance detection structure to generate contact sampling values ​​that vary with the degree of fit of the cap. After the temperature sampling value and the contact sampling value enter the controller, they are both appended with the sampling time, zone identifier, and data status identifier. The controller aligns the two types of sampling values ​​according to the sampling time and marks the data that could not be obtained in the same sampling window as data to be supplemented. The data to be supplemented does not directly participate in the thermal coupling state transition. Instead, it is written into the corresponding sequence after a consistency check is performed using the direction of change of the sampling values ​​before and after in the same zone and the sampling values ​​of adjacent zones at the same time, so as to avoid communication jitter or sampling absence being interpreted as a change in wearing status.

[0022] The cloud platform stores the device identifier, area layout description, and current control session of the electric heating cap. After the remote terminal submits the target temperature, the cloud platform encapsulates the target temperature, session identifier, generation time, and applicable device identifier into a temperature control command and sends it to the electric heating cap. The controller only receives the overall target temperature when the applicable device identifier matches the local device identifier and the session identifier matches the current control session. The overall target temperature represents the temperature control benchmark that all stable contact areas tend to approach, rather than directly representing the heating output of any power supply branch. When the controller receives a new overall target temperature, it retains the current temperature sequence, contact state sequence, and thermal coupling state, and performs area heat demand conversion from the next complete control cycle, so that the detection data before and after the target change are still within their respective control cycles. The cloud platform receives the area temperature and thermal coupling state returned by the controller to display the current execution status without replacing the local closed-loop calculation.

[0023] The temperature sequence is formed by arranging temperature values ​​continuously sampled from the same area according to the sampling time. The contact state sequence is formed by arranging contact values ​​continuously sampled from the same area according to the same time after baseline normalization. At the beginning of each control cycle, the controller extracts a sequence window covering the current cycle and the previous cycle, and performs adjacent time consistency verification on isolated jump data within the window. When an isolated jump occurs simultaneously in both the temperature sequence and the contact state sequence and the direction of change matches the heat transfer change after the heating output change, the corresponding data is retained. When an isolated jump occurs only in a single sequence and the adjacent time returns to the original change trajectory, the corresponding data is marked as a transient disturbance. The controller extracts the trend of temperature increase, temperature hold or temperature decrease from the verified sequence, and at the same time extracts the trend of contact enhancement, contact hold or contact weakening, and writes the trend along with the concurrent heating output into the area control record.

[0024] Thermal coupling status describes the current heat transfer relationship between the heating area and the human head. The controller does not directly specify the thermal coupling status based on a single contact sample value, but rather pairs the changing trend of the contact status sequence with the response trend of the temperature sequence relative to the heating output. When the heating output remains or increases, the contact trend weakens, and the area temperature rises faster than the adjacent area, the controller forms state evidence pointing to weak adhesion or disengagement. When the contact trend remains and the area temperature changes with the heating output and shows a continuous heat transfer response with the adjacent area, the controller forms state evidence pointing to stable adhesion. The state evidence is written into the thermal coupling status record according to the time of occurrence. The controller uses the continuous record to determine the current state and retains state evidence that does not yet meet the continuity requirement as candidate information, without directly replacing the current state with a single contact fluctuation.

[0025] After obtaining the thermal coupling status of each region, the controller converts the difference between the overall target temperature and the current temperature of each region into initial heat demand. Then, it corrects the initial heat demand based on the state of stable adhesion, weak adhesion, or detachment. The initial heat demand of the stable adhesion region is retained according to the relationship between the region's temperature deviation and temperature response. The initial heat demand of the weak adhesion region is divided into an executable part and a part to be transferred. The initial heat demand of the detached region stops being converted to the corresponding power supply branch and forms unallocated heat demand. The controller queries the adjacent regions in the region identification table and the current unmet heat demand of the adjacent regions. It transfers the unallocated heat demand to the stable adhesion region along the confirmed heat transfer direction. The final heat demand of the receiving region is constrained by both its regional temperature deviation and the current temperature change direction, avoiding fixed transfer based solely on spatial adjacency.

[0026] After the heating output is executed, the controller continues to synchronously record the output changes of each power supply branch and the subsequent changes of each temperature sequence according to the area identifier, and extracts the actual response direction from the temperature sequence segments before and after the output change; the controller generates the expected response direction based on the temperature response relationship corresponding to the current thermal coupling state, forms the response deviation by the difference between the actual response direction and the expected response direction, and then associates the response deviation with the change time of the contact state sequence at the same time; when the association result indicates that the contact state is maintained, the response deviation is used to correct the regional response relationship between the heating output and the temperature change; when the association result indicates that the contact state is changed, the response deviation is written into the thermal coupling state record after the change; the updated thermal coupling state re-participates in the heat demand conversion of the next control cycle, so that detection, state determination, demand allocation, heating execution and response correction form a continuous closed loop.

[0027] For example, after the electric heating cap is worn, the top of the head remains in contact, while the contact in the temporal region gradually weakens due to the cap's shift. The controller detects that the temperature rise in the temporal region is faster than in adjacent regions, even though the heating output in the temporal region has not decreased, and the contact state sequence shows a weakening trend. Therefore, the controller transitions the temporal region from a stable contact state to a candidate weak contact state. In subsequent control cycles, when the same directional combination occurs again, the state transition is completed. The unallocated heat demand in the temporal region no longer directly forms the heating output of the corresponding branch, but is allocated based on the temperature deviation in the top of the head and the direction of heat transfer between regions. After the cap re-closes, the contact state sequence becomes stronger, and the temperature response of the temporal region to the heating output re-corresponds continuously with adjacent regions. The controller confirms the restoration of a stable contact through the candidate state and resumes control according to the temporal region's own heat demand in subsequent control cycles.

[0028] Please refer to Figure 2 In a preferred embodiment, the determination of the thermal coupling state includes: extracting the contact change direction of the contact state sequence and the temperature response direction of the temperature sequence relative to the heating output in each control cycle; associating the contact change direction, temperature response direction of the same heating area and the temperature response direction of adjacent heating areas; generating thermal coupling confidence information based on the combination of the three directions; and determining a stable bonding state, a weak bonding state, or a disengagement state according to the thermal coupling confidence information of the continuous control cycle. The contact change direction is obtained by the sorting relationship between the last contact value and the previous contact value in the current sequence window; the temperature response direction is obtained by the correspondence between the temperature change after the output change and the output change direction; and the temperature response direction of adjacent areas is obtained by the temperature sequence of adjacent areas pointed to by the area identification table. All three types of directions carry data integrity identifiers and participate in the combination only after the corresponding sequence passes the consistency verification.

[0029] Specifically, the contact change direction uses three discrete values: increase, maintain, and decrease; the temperature response direction uses three discrete values: same direction, no obvious response, and opposite direction; and the temperature response direction of adjacent areas uses three discrete values: same direction of propagation, unconfirmed propagation, and opposite direction of propagation. The controller establishes a direction combination table, writing the combination of increased contact and temperature response in the same direction as the heating output into stable fit evidence; the combination of decreased contact and the area itself heating up faster than the adjacent propagation response into weak fit evidence; and the combination of continuously decreasing contact and the heating area itself heating up while there is no corresponding propagation in the adjacent area into detachment evidence. For combinations where the contact direction and temperature response direction contradict each other, the controller does not immediately specify a state, but retains the current state and requests continuous evidence from subsequent control cycles, thereby enabling mutual verification between the contact detection results and the thermal response results.

[0030] ; in, This represents the thermal coupling confidence value of the i-th heating region within the k-th control cycle. This represents the contact consistency quantity calculated from the direction of contact change. This indicates the consistency of the response direction between the temperature response direction and the heating output change direction. This represents the consistent quantities in the direction of temperature propagation between adjacent areas. 'a', 'b', and 'c' represent three types of consistent quantities with normalized non-negative weights within the same control session, summing to 1. For example, when contact continues to weaken... The temperature of the region itself still rises with the output. No corresponding propagation time was observed in adjacent areas. When a=0.4, b=0.4, and c=0.2, we get Instead of using 0.18 as a fixed criterion across devices, the controller compares the value with the confidence distribution formed during the stable bonding period in the same area and writes it into the weak bonding candidate state.

[0031] Please refer to Figure 3 , Figure 3 The horizontal axis represents the continuous closed control cycle during the sampling phase, covering the eight heating zones of the three electric heating cap devices. The vertical axis represents the thermally coupled confidence level and its normalized components. In the line notes, the solid line corresponds to the overall confidence level, while the dashed, dotted, and long dashed lines correspond to... , and The contact consistency quantity, response consistency quantity, and neighboring region propagation consistency quantity are characterized by various linear types and Figure 3 The curves in the middle correspond to each other.

[0032] from Figure 3 As can be seen, the overall confidence level exhibits stratified fluctuations between stable contact, weak contact, and disengagement states with the control period, with the overall value mainly distributed in the range of 0.20 to 0.66, and a mean of approximately 0.43. The relatively high levels of each component in the early stages indicate that the three types of evidence—contact change, temperature response, and neighboring area propagation—can collectively support stable contact; local troughs correspond to the continued weakening of contact or the interruption of propagation in adjacent areas.

[0033] The state mapping of thermally coupled confidence information is completed using the historical reference distribution of the same heating area. When the controller detects that the hat is in a stable wearing condition and the contact state sequence is maintained, it saves the thermally coupled confidence quantity formed by the continuous control cycle as a stable reference interval, and saves the deviating reference interval when it detects that the contact sampling is close to the unloaded baseline. During the operation phase, the thermally coupled confidence quantity is compared with the distance of the two reference intervals. When it is close to the stable reference interval, it forms stable fit evidence; when it is close to the deviating reference interval, it forms deviating evidence; when it is between the two and the contact change direction is decreasing, it forms weak fit evidence. When the confidence quantity deviates for a short time due to local pressure on the hat, the state transition sequence still requires the subsequent temperature response to continuously correspond to the candidate state, thereby avoiding the use of fixed thresholds across wearers.

[0034] In another preferred embodiment, when generating thermal coupling confidence information, the temperature changes of the target heating area and adjacent heating areas within the same control cycle are differentially analyzed to form an inter-regional temperature propagation sequence. The direction of change of the inter-regional temperature propagation sequence is paired with the contact change direction of the target heating area, and the thermal coupling confidence information obtained from the temperature response direction of the target heating area itself is corrected using the pairing result. The thermal coupling state is then determined using the corrected thermal coupling confidence information. The target heating area is determined by the area identifier currently verifying the thermal coupling state, and the adjacent heating areas are determined by the physical adjacency records in the area identifier table. During differential analysis, temperature values ​​that have been aligned at the sampling time and whose data status identifiers are normal are selected. Data that is not aligned does not participate in the propagation direction determination of this control cycle.

[0035] The inter-regional temperature propagation sequence is formed by subtracting the temperature change of adjacent heating regions from the temperature change of the target heating region. The controller simultaneously retains the sign, duration of change, and corresponding heating output event of the difference value. If the target heating region increases its own temperature first after increasing its output, and then the adjacent regions show the same temperature change, the inter-regional temperature propagation sequence changes from expansion to convergence, and the controller records the propagation relationship from the target region to the adjacent region. If the target heating region's own temperature continues to rise while the adjacent regions do not respond in the same direction, and the contact change direction is decreasing, the pairing result corrects the thermal coupling confidence information to point to weak adhesion or separation. If the adjacent region rises first and drives the target region's temperature change, the propagation direction is recorded in reverse, and subsequent heat demand transfer must not be executed in the opposite direction without confirmation.

[0036] In the operational example of this embodiment, the contact change direction of the target heating area is decreasing, and its own temperature response direction is in the same direction as the heating output change direction. Based solely on its own temperature response, it may be interpreted as normal heating. After the controller performs differential analysis on adjacent areas, it finds that no propagation response occurs in adjacent areas after the same output event, and the temperature propagation sequence between areas continues to expand. Therefore, the pairing result is written into the thermal coupling confidence information and the continuity of stable bonding evidence is reduced. If contact is restored in subsequent cycles and adjacent areas show temporally continuous temperature changes in the same direction, the pairing result turns to support stable bonding. The controller does not retrospectively modify the already executed heating output, but updates the thermal coupling state and regional heat demand from the next complete control cycle to keep the control record consistent with the physical execution process.

[0037] Furthermore, a state transition sequence is constructed from the thermal coupling confidence information of continuous control cycles in chronological order. The transition direction between stable contact state, weak contact state, and disengagement state is recorded in the state transition sequence. When the direction combination of the current control cycle is inconsistent with the previous thermal coupling state, the previous thermal coupling state is retained and written into the candidate state. The thermal coupling state transition is completed based on the continuous correspondence between the candidate state and the temperature response direction in subsequent control cycles. Each record in the state transition sequence includes a region identifier, original state, candidate state, direction combination, start time, and confirmation identifier. The controller maintains the record independently according to the region identifier, so that the deformation of the local cap does not synchronously change the state of other regions.

[0038] Candidate states are confirmed through the continuity of state evidence. After the controller writes the first non-consistent direction combination into the candidate state, it checks whether the contact change direction continues in subsequent control cycles, whether the temperature response direction corresponds to the candidate state, and whether the adjacent propagation direction generates a support record. When the three types of information remain consistent, the candidate state is written as the current thermal coupling state and the original state record is closed. If any information returns to the consistency with the original state, the candidate state is canceled and the original state is retained. For example, if a single contact weakens in the stable bonding area while the temperature propagation remains, only a weak bonding candidate state is formed. The candidate state is canceled after the subsequent contact is restored. If the contact continues to weaken and the area's own heat accumulation and the interruption of adjacent propagation occur simultaneously, the transition from stable bonding to weak bonding is completed.

[0039] Please refer to Figure 4In a preferred embodiment, converting the overall target temperature into the heat demand of each heating zone includes: determining the regional temperature deviation relative to the overall target temperature based on the temperature sequence of each heating zone; correcting the regional temperature deviation according to the thermal coupling state to form a regional heat demand weight; allocating heating output according to the regional heat demand weight; and transferring the unallocated heat demand corresponding to the weak bonding state or the detached state to the heating zone with unmet heat demand and in a stable bonding state; the regional temperature deviation is represented by the difference between the overall target temperature and the current regional temperature, the current regional temperature is determined by the last segment value of the temperature sequence verified by data within the current control cycle, and when a transient disturbance occurs, the continuous temperature trajectory before the disturbance is used for calculation.

[0040] The correction of regional temperature deviation in thermal coupling states is based on the heat transfer availability corresponding to the state. Stable bonding regions retain heat demand in the same direction as the temperature deviation, weak bonding regions retain only heat demand that can be verified by the current temperature response relationship, and detached regions do not directly convert positive temperature deviation into heating output. The controller multiplies the corrected temperature deviation of each region with the regional thermal coupling confidence value to obtain the regional heat demand weight, and forms the initial heating output according to the proportion of the weight to all executable weights. When there is no positive temperature deviation in all stable bonding regions, the controller does not execute the transfer of unallocated heat demand, but retains the corresponding record and re-verifies it in the next control cycle to avoid additional heating due to reallocation when there is no heating demand.

[0041]

[0042] ; in, This represents the final heat demand allocated to the i-th stable bonding area during the k-th control cycle. This indicates the initial heat demand of the corresponding region before the transfer. Indicates the positive temperature deviation in the region. This represents the thermal coupling confidence value of the j-th heating region. This represents the positive temperature deviation of the j-th heating region. Indicates weak fit or detachment area Initial heat requirements before transfer This indicates the overall target temperature issued by the cloud platform and effective within this control cycle. This represents the current temperature of the i-th region. This represents a set of stable, fitted areas with unmet heat requirements. This represents a set of weakly fitted or disjointed areas that create undistributed heat demand; for example, two stably fitted areas. When the unallocated heat demand of the weakly bonded area is 4, the two stable bonded areas receive 3 and 1 respectively. The results are then verified by their respective temperature change directions and converted into the conduction time series of the power supply branch.

[0043] Please refer to Figure 5 , Figure 5 The graph depicts the heat demand transfer process in the corresponding region. The horizontal axis represents the demand calculation sequence arranged according to the control cycle during the adjustment phase, and the vertical axis represents the dimensionless heat demand. In the line notes, the dashed line represents the initial demand before the transfer, the dotted line represents the transferred demand received by the stable and closely fitted region, the long dashed line represents the demand retained due to insufficient receiving conditions, and the solid line represents the final demand entering the power supply branch plan; these four types of curves together characterize the process. , , , and The regulatory relationship between them.

[0044] Figure 5 Initial demand generally ranged from 0.03 to 3.40, with final demand expanding to a peak of approximately 6.85. This indicates that unallocated demand from weakly fitted or detached areas was redirected to stable fitted areas with positive temperature deviations. The highest transferred demand was approximately 4.50, while the peak retained demand was approximately 0.52 with a short duration, suggesting that most control cycles were able to find effective receiving areas, while a few cycles were suspended due to insufficient receiving area capacity or adjacency.

[0045] The formation and release of unallocated heat demand both carry source region identifiers. The controller writes the parts to be transferred in the weakly fitted region and the initial demand that stops execution in the detached region into the transfer queue. The queue records the source status, formation time, transferable quantity, and current execution identifier. When there is unmet demand in the stable fitted region, the unexecuted transferable quantity is read from the queue and allocated according to the region's heat demand weight. When the temperature deviation of the receiving region turns negative during the allocation period, the part that has not yet been converted into heating output is returned to the transfer queue. When the source region regains stable fit but still has a temperature deviation, the controller cancels the unexecuted transfer record corresponding to the source region and re-includes the corresponding demand into the initial heat demand calculation of the source region itself.

[0046] Furthermore, the transfer of unallocated heat demand includes: establishing an adjacency relationship characterizing the direction of heat transfer between regions based on the response sequence of the temperature sequence of adjacent heating regions after the change in heating output; separating transferable demand from the heat demand of regions corresponding to weakly bonded or detached states, allocating it along the adjacency relationship to adjacent heating regions in stable bonded states, and correcting the allocation result based on the regional temperature deviation of the receiving region; the adjacency relationship consists of a region identifier, a starting region identifier, a receiving region identifier, a propagation direction, and a confirmation status, and only adjacency relationships with a confirmed status can carry transferable demand.

[0047] The establishment of adjacency relationships uses the heating output change event as the starting point for temperature propagation observation. The controller records the output change time of the power supply branch in the starting area and searches for the response start segment that changes from the original change trajectory to the same direction change trajectory in the temperature sequence of the target area and its adjacent areas. When the response start segment of the target area appears first and the response start segment of the adjacent area appears later, a candidate adjacency relationship from the target area to the adjacent area is established. When multiple output change events repeatedly form the same sequential relationship, the candidate adjacency relationship is changed to confirmed. When no corresponding response segment appears in the adjacent area or the response direction is opposite, no adjacency relationship to meet the heat demand is established, and the event heat coupling confidence information is retained for correction.

[0048] Transferable requests are queried level by level along the confirmed adjacency relationships. The controller prioritizes receiving areas that are directly adjacent to the source area, in a stable bonding state, and have a positive regional temperature deviation. If there are no unmet requests in the directly adjacent areas, the transfer stops without crossing unconfirmed areas. After the receiving area obtains a transferable request, the allocation result is corrected according to the proportion of its regional temperature deviation in the total deviation of all receiving areas. The thermal coupling status of the receiving area is checked again before the heating output is actually written into the power supply branch. If the receiving area has turned into a candidate weak bonding state, the corresponding allocation result is kept in an unexecuted state. After the state is confirmed, it is decided to return to the source record or continue to convert to heating output.

[0049] In a further preferred embodiment, when updating the adjacency relationship, the heating output change events of each adjacent heating area are matched with the response start segments in the corresponding temperature sequence. The heat transfer direction is determined according to the order of the matched responses, and the adjacency relationship is retained or replaced based on the consistency of the heat transfer direction in consecutive events. When the adjacency relationship is replaced, the transferable requirements that have not yet been executed are withdrawn and redistributed along the replaced adjacency relationship. The event matching record includes the output change event identifier, the response start segment identifier, and the matching status. The controller prevents the same temperature response segment from being repeatedly used for multiple adjacency relationships with opposite directions according to the event identifier.

[0050] Consistency of consecutive events is handled through an adjacency history table. The history table stores the most recently completed event matching direction according to the starting region and receiving region. When a new event direction is consistent with the current adjacency relationship, a consecutive record is added and the adjacency relationship is retained. When a new event direction is opposite to the current adjacency relationship, a replacement candidate is established and the writing of new transferable requirements in the original direction is suspended. When subsequent events continue to support replacement candidates, the controller marks the original adjacency relationship as invalid, writes the replacement candidate as a confirmed relationship, and searches for a record in the transfer queue that matches the source region, current adjacency relationship, and execution identifier. Requirements that have not yet been converted into power supply branch outputs are withdrawn and reallocated. The executed parts are retained in the original control cycle record and participate in response correction through subsequent temperature feedback.

[0051] In a preferred embodiment, updating the thermal coupling state using the adjusted temperature sequence includes: recording temperature sequence segments of each heating region before and after the change in heating output; determining the expected response direction of the corresponding temperature sequence segment based on the direction of change in heating output; calculating the response deviation between the actual response direction and the expected response direction; associating the response deviation with the concurrent contact state sequence; and updating the thermal coupling state of the corresponding heating region based on the association result. The temperature sequence segment before the change in heating output is extracted from the continuous temperature trajectory before the output change event, and the temperature sequence segment after the change in heating output is extracted from the trajectory where continuous change first occurs after the event. Both segments carry the same event identifier.

[0052] The expected response direction is determined by the temperature response relationship corresponding to the current thermal coupling state. In a stable bonding state, increasing the heating output will cause the temperature in the corresponding area to rise along the original trajectory or slow down the decline. Decreasing the heating output will cause the temperature in the corresponding area to slow down the rise or turn into a decline. In weak bonding and disengagement states, the respective saved temperature response relationships are called. The controller compares the change direction, response start time, and duration of the actual temperature sequence segment with the expected response record item by item, and writes the non-corresponding parts as response deviation records. The response deviation does not directly change the thermal coupling state, but is time-aligned with the contact state sequence before and after the output change to determine whether the contact state remains or changes during the deviation period, and then selects the area response relationship update path or the thermal coupling state update path.

[0053] In a preferred embodiment, associating the response deviation with the synchronous contact state sequence includes: segmenting the contact state sequence before and after the heating output change time to obtain the contact state before the output change and the contact state after the output change, respectively; when the two contact states are consistent, the temperature response relationship of the corresponding heating area is updated using the response deviation; when the two contact states change, the response deviation is written into the changed thermal coupling state and used to correct the expected response direction of the subsequent control cycle; the segment boundary is the output change event time, and the contact states before and after the boundary are determined by the continuous change direction in the corresponding sequence segment and the current thermal coupling confidence information, respectively.

[0054] When the contact state is maintained, the controller will assign the response deviation to the response record corresponding to the heating output change, and use the temperature change of subsequent output events under the same thermal coupling state to correct the temperature response relationship. When the contact state changes, the controller will retain the temperature response relationship under the original thermal coupling state, and write the response deviation, along with the change direction, change time and output event identifier, into the new state record. After the new state is confirmed in the subsequent control cycle, the record will be called to correct the expected response direction. If the candidate state is canceled, the response deviation written into the candidate state will not enter the stable reference distribution as the candidate record is closed, thus avoiding unconfirmed contact changes from altering the long-term response relationship.

[0055] Furthermore, when correcting the expected response direction of subsequent control cycles, the deviation segments synchronized with the contact state transition and the deviation segments synchronized with the heating output change are separated from the response deviation. The former is used to update the temperature response relationship corresponding to the thermally coupled state after the transition, and the latter is used to update the response relationship between the heating output and the temperature change. The two updated response relationships are used together to generate the expected response direction of the next control cycle. The synchronization relationship is determined by the order of coincidence between the start time of the deviation segment and the contact state transition time and the output change event time, respectively. When the same deviation segment spans two types of events, it is split according to their respective duration segments.

[0056] During deviation separation, the controller categorizes the temperature deviation that occurred before the contact state transition due to the change in heating output into the output correlation segment, and the deviation from the original response trajectory after the contact state transition into the contact correlation segment. If the contact state transitions first and the heating output changes subsequently, the deviation from the transition to the output change is categorized into the contact correlation segment, and the deviation added after the output change is categorized into the output correlation segment. Each segment retains the original temperature sampling value, start and end times, and corresponding state. The contact correlation segment is stored according to the thermal coupling state after the transition, and the output correlation segment is stored according to the output increase, output hold, or output decrease. The two types of records are combined and called when generating the expected response based on the current event conditions.

[0057]

[0058]

[0059]

[0060]

[0061]

[0062] ; in, This represents the response deviation of the i-th heating region in the k-th control cycle. This represents the actual temperature change. This indicates the expected temperature change. This indicates the expected temperature change in the next control cycle. and These represent the deviation components that are synchronized with the change in contact state and with the change in heating output, respectively. This indicates the proportion of time overlap between the deviation segment and the contact transition segment. Indicates thermal coupling state The corresponding temperature response fundamental quantity, This represents the temperature response fundamental quantity corresponding to the thermal coupling state in the next control cycle. This represents the response coefficient between heating output and temperature change. This represents the response coefficient between the heating output and the temperature change in the next control cycle. This indicates the change in heating output during the current cycle. This indicates the change in heating output in the next control cycle. and These represent the update coefficients for the two types of relations, with values ​​greater than 0 and not greater than 1; for example... , , and At that time, and The temperature response fundamental quantity and output response coefficient are each increased by 0.15, and the expected temperature change for the next period is generated from the updated two-class relationship. The output response coefficient remains constant.

[0063] Please refer to Figure 6 Observe the response relationship update. The horizontal axis represents the control period aligned with the temperature segment after the output event during the response phase, and the vertical axis represents the temperature change, response deviation, and related update amounts. In the line notes, solid lines represent actual temperature changes, dashed lines represent model-expected temperature changes, dotted lines represent contact correlation deviations, and long dashed lines represent output correlation deviations. Each curve corresponds to... , , and The meaning of symbols such as etc.

[0064] Based on the data distribution, the actual temperature change is approximately between -0.14 and 0.50, while the expected temperature change is approximately between -0.74 and 0.38. The difference between these two figures is significant. The indicated response deviations are as follows. The contact-related deviations are mainly between 0.024 and 0.120, while the output-related deviations are the highest at approximately 0.480, indicating that most deviations can be attributed to either contact state transitions or output changes, rather than being retained as an unexplained overall error.

[0065] When the solid line is consistently higher than the dashed line, it indicates that the actual temperature rise in the region under the same power supply output is stronger than the model prediction. This is to positively influence and cause the response relationship to adjust upwards; when the dashed line is lower than the actual measurement and the dotted line rises, it indicates that the deviation is closer to the contact state transition, and should be adjusted accordingly. The state response fundamental quantity absorption; when the long dashed line changes more significantly, it indicates a relationship between the output change and the temperature change. It needs to be updated, and The output response coefficients should not be rewritten.

[0066] In this embodiment, the data transmitted between the cloud platform and the electric heating cap is organized according to the control session. The data frame uploaded by the electric heating cap includes the device identifier, control cycle identifier, area identifier, overall target temperature version, current thermal coupling status, area temperature, area heat demand, and execution status. The data frame returned by the cloud platform includes the session identifier, overall target temperature, and target activation identifier. The controller only uses the overall target temperature confirmed by the activation identifier for area heat demand conversion. When the upload fails, the controller caches the data frames locally according to the control cycle order. After the connection is restored, the data is re-uploaded according to the original cycle identifier. The re-uploaded data is used to restore the status change record and remote display. It does not write back the output of the completed power supply branch, thereby maintaining the correspondence between the cloud record and the local physical execution order.

[0067] After initial wear or change of wearer, the controller performs a reference data establishment process. When the contact detection position is in an unloaded state, an unloaded baseline is recorded. When the cap is fully worn and the contact sequence of each area remains continuous, a stable contact reference is recorded. Subsequently, within the control segment without changing the overall target temperature, corresponding records of heating output and temperature change in each area are collected. The unloaded baseline is used to normalize the contact state sequence, the stable contact reference is used to form a stable fit confidence distribution, and the output and temperature correspondence records are used to establish the initial temperature response relationship of each thermal coupling state. The reference data are all stored independently according to the area identifier. When data for a certain area is missing, only the heat demand transfer and state learning of that area are paused, while other areas with complete data continue to perform closed-loop constant temperature regulation according to their respective states.

[0068] In one optional embodiment, the contact state sequence can be formed by combining pressure detection values ​​and capacitance detection values. The controller first converts the two types of detection values ​​into unidirectional changes based on the unloaded baseline, and then compares the occurrence time and direction of the two types of changes. When the two types of changes are unidirectional and continuous, a confirmed contact change is written. When only one type of change changes, a contact change to be verified is written, and the temperature response direction and adjacent propagation direction are called to complete the verification. Temperature detection can use a contact-type temperature detection device that is insulated from the heating layer, or a distributed temperature detection structure arranged along the flexible substrate. As long as each temperature sampling value can be associated with the corresponding heating output and contact state within the same control cycle through area identification, a temperature sequence can be formed.

[0069] In another optional embodiment, the spatial relationship of the heating area is not limited to a regular matrix. The controller can establish an area identification table based on the connection relationship of the hat body pieces, record areas with direct thermal contact as adjacent areas, and record areas that may be close to the hat body when it is folded but have no stable thermal path as areas to be confirmed. Areas to be confirmed are only written into the adjacency relationship after a continuous temperature propagation relationship is formed in multiple heating output change events. When the propagation direction disappears due to the unfolding of the hat body or the change of wearing position, the unexecuted requirements are withdrawn according to the adjacency relationship replacement mechanism. For heating areas located at the edge of the hat body and with only one adjacent area, the unallocated heat requirements are transferred only when the adjacent areas are in stable contact and there is a positive temperature deviation. Otherwise, they are retained in the transfer queue to wait for verification in the next control cycle.

[0070] Specifically, during a complete operation, after the remote terminal submits the overall target temperature, the controller receives the target from the boundary of the complete control cycle and simultaneously captures the temperature sequence and contact state sequence of each area. The direction combination table generates thermal coupling confidence information for each area, and the state transition sequence retains the current state or writes it into the candidate state accordingly. The controller uses the current state to correct the temperature deviation of the area and form the heat demand weight. Unallocated demand generated by weakly fitted or detached areas enters the transfer queue. The confirmed adjacency relationship determines the stable fitted area that can receive demand. The allocation result is converted into the power supply branch output after being verified by the temperature deviation of the receiving area. The output change event triggers the acquisition of temperature response segments. The deviation between the actual response and the expected response is then associated with the contact state transition time. The updated thermal coupling state, temperature response relationship, and adjacency relationship enter the next control cycle. The entire operation process does not use a single temperature value or a single contact value as the sole basis for the regional heating decision.

[0071] The controller generates a unique process record for each control cycle. The overall target temperature version, thermal coupling state version, adjacency relationship version, and temperature response relationship version in the process record are locked before the heating output is written. New candidate states or replacement candidate adjacency relationships formed in the current cycle only take effect in the next complete control cycle. When the data status identifier of a certain detection sequence is abnormal, the controller freezes the state transition of the corresponding area, stops the area from transferring new heat demand outward, and retains the confirmed stable fitting area to continue to execute according to the locked version of the current cycle. After the detection sequence is restored to continuity, the controller re-establishes the candidate state using the direction combination and temperature propagation record before and after the restoration, and does not directly interpret the jump generated during data restoration as thermal coupling state transition, so that the remote target temperature, wearing status recognition, and area heating output maintain a traceable closed-loop correspondence.

[0072] In one implementation, the regional heat demand is a dimensionless demand used internally by the controller. When converted into power supply branch output, the controller reads the total output time available for execution in the current control cycle and allocates conduction segments according to the relative order of the final heat demand of each region. The conduction segments of the same heating region are distributed in the control cycle. At the end of each segment, the controller reads the actual output status and writes it into the output event record. Segments that are not successfully written into the power supply branch are not counted as executed heat demand. When multiple regions have heat demand at the same time, the segments of each region are arranged cyclically according to the region identification table. Weakly fitted regions only execute the demand retained after verification of temperature response relationship. Detached regions do not generate conduction segments. The number of segments actually completed is used as the basis for heating output for subsequent temperature response direction judgment.

[0073] When the cloud platform issues a new overall target temperature during the candidate state confirmation period, the controller creates a version to be effective for the new target temperature and continues to use the current target version to complete the ongoing control cycle. After entering the next control cycle, the controller retains the confirmed thermal coupling state, candidate state, and adjacency relationship, and only replaces the overall target temperature used for calculating the regional temperature deviation. The continuity judgment of the candidate state still follows the contact change direction before and after the target change, but the temperature response direction is calculated separately according to the target version to which the corresponding output event belongs. The temperature rise response generated by the target increase cannot be used to confirm the state evidence formed during the target decrease. The controller separates the two types of records through the binding relationship between the target version and the output event identifier to prevent remote setting changes from being misjudged as wearing status changes.

[0074] When multiple weakly fitted or disjointed areas generate unallocated heat demand in the same control cycle, the controller establishes transfer queue records according to the source areas and queries the confirmed adjacency relationships corresponding to each source area. When multiple source areas point to the same stable fitted receiving area, the controller temporarily stores the transferable demand from each source in the receiving area record, determines the acceptable total amount based on the positive temperature deviation of the receiving area, and then allocates the acceptable total amount according to the continuity of the heat transfer direction between each source and the receiving area. The portion exceeding the acceptable total amount of the receiving area retains the original source identifier and is not transferred to other areas without adjacency relationships. When the status of the receiving area changes, the unexecuted demand can be withdrawn item by item according to the source identifier to avoid the overwriting of different source records during redistribution.

[0075] The identification of the response start segment uses a combination of temperature trajectory turning point and continuous direction judgment. The controller establishes a reference trajectory before the event and an observation trajectory after the event, centered on the heating output change event, and compares the continuous temperature change in the observation trajectory with the extension direction of the reference trajectory. The position where the observation trajectory begins to deviate from the reference trajectory and subsequent sampling maintains the same direction of change is recorded as the response start position. Only when an isolated sample deviates and immediately returns to the reference trajectory does it not form a response start segment. The response start positions of adjacent regions are compared with the response start position of the target region according to the sampling time, and the order is written into the event matching record. If the response start positions of two regions cannot be distinguished in order, this event is only used for updating the temperature response relationship and not for replacing the adjacent direction.

[0076] The controller uses a zone-divided circular storage area to store temperature sequences, contact state sequences, output event records, state transition sequences, and adjacency history tables. Each record contains a control cycle identifier and establishes a cross-sequence index through the identifier. When the storage area reaches its capacity boundary, the controller retains the reference distribution corresponding to the current thermal coupling state, candidate states that have not yet been closed, transfer records that still contain unexecuted requirements, and the current adjacency relationship. It releases early sampling segments that have completed feedback correction and are no longer referenced by candidate records in chronological order. During the remote retransmission process, it reads the closed cycle records. The cycle that is currently being executed does not participate in the retransmission, avoiding changes to the data order used in the closed-loop calculation during storage organization and communication reading.

[0077] When the heating cap is removed, the contact state sequence of each area approaches the no-load baseline in sequence. The controller writes the area that continuously corresponds to the no-load baseline into the detachment candidate state and stops generating new heating output for the area. After all areas have completed the detachment confirmation, the current overall target temperature is retained as a session record. Unexecuted transfer requirements are closed and not carried over to the next wearing process. The temperature response relationship and stable reference distribution are saved according to the area identifier. When wearing it again, the controller starts to establish candidate stable fit states from the areas where the contact state has re-formed continuous changes. Only after the contact change direction, temperature response direction and adjacent propagation direction have completed the correspondence will the area heat demand conversion be restored. The response relationship saved in the previous wearing process is used as the initial reference and is corrected periodically by the newly formed response deviation.

Claims

1. A remote constant temperature control method for an electric heating cap IoT control system, characterized in that, The heating layer of the electric heating cap is divided into multiple independently adjustable heating zones. The overall target temperature is obtained from the cloud platform, and the contact state sequence and temperature sequence are collected simultaneously for each heating zone. Based on the consistent relationship between the changing trends of the contact state sequence and the temperature sequence, the thermal coupling state of each heating zone is determined; Based on the thermal coupling state, the overall target temperature is converted into the heat demand of each heating zone, and the heating output of the corresponding heating zone is adjusted according to the heat demand. The thermal coupling state is updated using the adjusted temperature sequence, and the subsequent heat demand is corrected based on the updated thermal coupling state, forming a closed-loop constant temperature regulation for changes in wearing status.

2. The remote constant temperature control method for an electric heating cap IoT control system according to claim 1, characterized in that, The determination of the thermal coupling state includes: extracting the contact change direction of the contact state sequence and the temperature response direction of the temperature sequence relative to the heating output in each control cycle; associating the contact change direction, temperature response direction of the same heating area and the temperature response direction of adjacent heating areas; generating thermal coupling confidence information based on the combination of the three directions; and determining the stable bonding state, weak bonding state or detachment state according to the thermal coupling confidence information of the continuous control cycle.

3. The remote constant temperature control method for an electric heating cap IoT control system according to claim 2, characterized in that, The conversion of the overall target temperature into the heat demand of each heating zone includes: determining the regional temperature deviation relative to the overall target temperature based on the temperature sequence of each heating zone, correcting the regional temperature deviation according to the thermal coupling state, and forming regional heat demand weights. Heating output is allocated according to the heat demand weight of the area, and the unallocated heat demand corresponding to the weak bonding state or the detached state is transferred to the heating area with unmet heat demand and in the stable bonding state.

4. The remote constant temperature control method for an electric heating cap IoT control system according to claim 1, characterized in that, Updating the thermal coupling state using the adjusted temperature sequence includes: recording temperature sequence segments of each heating region before and after the change in heating output; determining the expected response direction of the corresponding temperature sequence segment based on the direction of change in heating output; calculating the response deviation between the actual response direction and the expected response direction; associating the response deviation with the synchronous contact state sequence; and updating the thermal coupling state of the corresponding heating region based on the association result.

5. The remote constant temperature control method for an electric heating cap IoT control system according to claim 2, characterized in that, When generating the thermal coupling confidence information, the temperature changes of the target heating area and the adjacent heating area within the same control cycle are differentially analyzed to form an inter-region temperature propagation sequence. The change direction of the temperature propagation sequence between the regions is paired with the contact change direction of the target heating region, and the thermal coupling confidence information obtained from the temperature response direction of the target heating region itself is corrected by the pairing result. Then, the thermal coupling state is determined by using the corrected thermal coupling confidence information.

6. The remote constant temperature control method for an electric heating cap IoT control system according to claim 3, characterized in that, A state transition sequence is constructed from the thermal coupling confidence information of the continuous control cycle in chronological order, and the transition direction between the stable bonding state, the weak bonding state and the detachment state is recorded in the state transition sequence. When the direction combination of the current control cycle is inconsistent with the previous thermal coupling state, the previous thermal coupling state is retained and written into the candidate state. The thermal coupling state transition is completed based on the continuous correspondence between the candidate state and the temperature response direction in subsequent control cycles.

7. The remote constant temperature control method for an electric heating cap IoT control system according to claim 3, characterized in that, The transfer of unallocated heat demand includes: establishing an adjacency relationship characterizing the direction of heat transfer between regions based on the response sequence of the temperature sequences of adjacent heating regions after the change in heating output; The transferable demand is separated from the heat demand of the area corresponding to the weak bonding state or the detached state, and distributed to the adjacent heating area of ​​the stable bonding state along the adjacency relationship. The distribution result is corrected by the area temperature deviation of the receiving area.

8. The remote constant temperature control method for an electric heating cap IoT control system according to claim 4, characterized in that, Associating the response deviation with the synchronous contact state sequence includes: segmenting the contact state sequence before and after the heating output change time to obtain the contact state before the output change and the contact state after the output change, respectively. When the two contact states are consistent, the temperature response relationship of the corresponding heating area is updated using the response deviation. When the two contact states change, the response deviation is written into the changed thermal coupling state and used to correct the expected response direction of the subsequent control cycle.

9. The remote constant temperature control method for an electric heating cap IoT control system according to claim 7, characterized in that, When updating the adjacency relationship, the heating output change event of each adjacent heating area is matched with the response start segment in the corresponding temperature sequence, the heat transfer direction is determined according to the order of the matched responses, and the adjacency relationship is retained or replaced based on the consistency of the heat transfer direction in the continuous events. When the adjacency is replaced, any unexecuted transferable requests are withdrawn and redistributed along the replaced adjacency.

10. A remote constant temperature control method for an electric heating cap IoT control system according to claim 8, characterized in that, When correcting the expected response direction of the subsequent control cycle, the deviation segment synchronized with the contact state transition and the deviation segment synchronized with the heating output change are separated from the response deviation. The former is used to update the temperature response relationship corresponding to the thermal coupling state after the transition, and the latter is used to update the response relationship between the heating output and the temperature change. The two updated response relationships are used together to generate the expected response direction of the next control cycle.

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