A control method for an automatic temperature measurement system for a coke oven.

Abstract

This invention discloses a control method for an automatic coke oven straight-line temperature measurement system. The system utilizes a control unit to wake up the system based on preset scheduling conditions or external task commands; reads environmental and device status information and determines whether the equipment meets the execution conditions; when the execution conditions are met, it controls the lid-opening actuator to transition the oven lid from a closed state to an open state; during the opening process, it checks for any abnormalities in the oven lid; when the control unit determines that the oven lid is fully open, it activates the infrared temperature measurement component for non-contact temperature and environmental parameter acquisition; the control unit performs filtering, compensation, validity determination, and anomaly identification processing on the acquired temperature data to obtain the straight-line temperature result and output it to an external system; after the data transmission is complete, it controls the lid-opening actuator to move in the reverse direction, restoring the oven lid to a closed state, and the system re-enters standby mode, completing the automatic temperature measurement closed-loop process and enhancing the adaptive handling capability under abnormal operating conditions.

Description

Technical Field

[0001] This invention relates to the field of automatic detection and industrial automation control technology, specifically to a coke oven straight-line temperature adaptive measurement and intelligent scheduling control method that integrates automatic lid opening, resistance feedback, adaptive control, infrared temperature measurement, environmental compensation, anomaly identification and dynamic scheduling functions. Background Technology

[0002] The coke oven vertical operating temperature is a key process parameter in the regulation of the coke oven heating regime. Its measurement results directly affect the coke maturity, the stability of the oven's thermal regime, energy utilization efficiency, and equipment lifespan. Currently, coke oven vertical operating temperature measurement mainly includes three categories: manual temperature measurement, semi-automatic temperature measurement, and automated temperature measurement. Traditional manual temperature measurement suffers from problems such as high labor intensity, hazardous working environment, poor temperature repeatability, large data dispersion, and inability to perform continuous high-frequency measurements. Automated solutions combining the lid-opening mechanism with the infrared temperature measurement mechanism, using fixed motion trajectories or fixed driving force control methods, are difficult to adapt to the adhesion, jamming, misalignment, and resistance fluctuations that occur with the coke oven inspection hole cover under high temperature, ash accumulation, coking, and thermal deformation conditions. Furthermore, in infrared temperature measurement, existing technologies generally obtain internal temperature information of the coke oven through non-contact infrared methods. This method is easily affected by factors such as ambient temperature, background thermal radiation, smoke and dust obstruction, detection field of view offset, and incomplete opening of the oven lid during actual temperature measurement, leading to deviations between the measured infrared temperature value and the actual vertical operating temperature.

[0003] Most existing technologies only improve performance through high-temperature resistant probes, protective lenses, or simple filtering methods, without establishing a collaborative compensation mechanism that integrates environmental sensing parameters, lid opening status parameters, and historical temperature measurement data. Therefore, it is difficult to consistently obtain highly consistent and reliable temperature measurement results. Furthermore, existing automatic temperature measurement systems mostly employ preset time triggering and fixed-sequence measurement methods in their operational logic, i.e., executing lid opening, temperature measurement, uploading, and resetting sequentially according to a predetermined measurement point order. While this method achieves automation, it remains a static scheduling mode, lacking the ability to comprehensively assess historical temperature change trends, the intensity of abnormal fluctuations, measurement confidence levels, and the degree of environmental disturbance. When abnormal temperature rises, falls, or short-term drastic fluctuations occur in local fire channels, existing systems can typically only mark the area after measurement or perform simple remeasurements. They cannot dynamically adjust the remeasurement order within the current cycle based on the severity of the anomaly, nor can they rearrange the measurement point priorities in the next cycle, thus lacking truly intelligent scheduling and closed-loop decision-making capabilities.

[0004] Therefore, the existing automatic temperature measurement technology for coke ovens has at least the following shortcomings: First, it lacks the ability to identify and classify the resistance to opening the inspection hole cover in real time; second, it lacks a dynamic temperature compensation mechanism that combines environmental disturbances and the open cover status; third, it lacks the ability to prioritize measurement points, re-measure and queue up for abnormal temperature zones, and perform closed-loop scheduling; and fourth, the functional modules are mostly simple superpositions of mechanical execution, infrared acquisition and data uploading, and have not yet formed a collaborative control system suitable for the complex environment of the coke oven top. Summary of the Invention

[0005] The purpose of this invention is to provide a control method for an automatic temperature measurement system for a coke oven, so as to solve the problems mentioned in the background art.

[0006] The specific technical solution provided by this invention is as follows: A control method for an automatic coke oven straight-line temperature measurement system, comprising the following operating steps: Step S1: Respond to the temperature measurement task command sent by the external system, or the preset temperature measurement time interval trigger command, wake up the coke oven straight-line temperature automatic measurement system and start the temperature measurement task.

[0007] Step S2: Collect environmental parameters and use the environmental parameters to determine whether the current operating conditions meet the temperature measurement conditions based on the set threshold. When the temperature measurement conditions are met, drive the furnace cover to open.

[0008] Preferably, the environmental parameters include at least one or more of the following: ambient temperature, background thermal radiation intensity, degree of smoke and dust interference, system attitude status, internal working temperature of the outer shell in the system, and safety status information around the furnace top in the system.

[0009] Step S3: Collect the status variables output by the resistance detection unit, calculate the opening resistance characteristic parameters, and characterize the current opening resistance state of the furnace cover.

[0010] Preferably, the opening resistance characteristic parameter is comprehensively characterized based on the output current, angular velocity and displacement change of the servo motor in the system.

[0011] Preferably, the current furnace cover opening resistance status includes: normal furnace cover opening resistance status and abnormal furnace cover opening resistance status. The determination of abnormal furnace cover opening resistance status includes: when the control unit detects that the load signal in the system is higher than a set threshold, the furnace cover opening resistance status is determined to be abnormal; when the control unit detects that the furnace cover displacement output by the servo motor is inconsistent with the actual displacement of the furnace cover within a set time, the furnace cover opening resistance status is determined to be abnormal.

[0012] Step S4: When the resistance state is determined to be abnormal, the current abnormal state is classified and identified, and adaptive adjustment is initiated based on the degree of abnormality, duration of abnormality and current position.

[0013] Preferably, the control unit classifies and identifies the current abnormal state by: the control unit classifies and identifies the current abnormal state by means of the current, torque, angle, displacement, duration of action and their combination information output by the resistance detection unit in the system, and the identification results include: mild abnormal state, moderate abnormal state and severe abnormal state.

[0014] Preferably, entering adaptive adjustment includes: When the control unit detects that the furnace cover is in a slightly abnormal state, it performs adaptive adjustment of the speed reduction control; When the control unit detects that the furnace cover is in a moderate abnormal state, it will adaptively adjust the driving force or driving torque in stages. When the control unit detects that the furnace cover is close to the preset limit position of the mechanism under abnormal conditions, or when abnormal displacement, abnormal angle and high load occur at the same time, it will perform adaptive adjustment of the maximum action amplitude. When the control unit determines that the furnace cover is in a severely abnormal state, it outputs an abnormal alarm and terminates the task.

[0015] Step S5: After the adaptive adjustment ends and it is determined that the furnace cover has reached the preset opening position, the infrared temperature measurement component is triggered.

[0016] Step S6: The infrared temperature measurement component performs non-contact infrared detection on the target area inside the coke oven along the preset field of view, collects the original infrared temperature value, filters it, and outputs the pre-processed infrared temperature value.

[0017] Step S7: Perform first and second correction compensation on the infrared temperature measurement value to obtain the corrected true straight-line temperature value.

[0018] Preferably, the correction compensation for primary and secondary corrections includes: performing a primary correction on the infrared temperature measurement value based on ambient temperature parameters, background radiation parameters, and smoke interference parameters to obtain the straight-line temperature value after primary correction compensation; further reading the current attitude deviation parameters and cover-opening parameters; and calculating the attitude correction term and cover-opening correction term respectively; when attitude deviation and cover-opening insufficiency are detected and both exceed a preset threshold, calculating a joint correction term; and outputting the true straight-line temperature value after joint correction.

[0019] Preferably, the attitude correction term includes: It is represented using attitude correction coefficients and attitude deviation parameters; It is represented by pitch deviation, yaw deviation, and corresponding correction coefficients; The correction item for the lid opening position includes: expressed by the difference between the lid opening correction coefficient and the lid opening position parameter and the standard opening degree; The joint correction term includes the difference between the joint correction coefficient, the attitude deviation parameter, and the standard opening degree and the opening position parameter.

[0020] Preferably, the control unit combines the attitude deviation parameter and the lid opening position parameter to judge the reliability of the temperature measurement result. When the attitude deviation parameter exceeds the allowable deviation threshold or is lower than the minimum effective lid opening threshold, the corrected temperature is not used as the final result. The data of the corrected temperature is marked as low reliability data, triggering resampling or being sent to subsequent temperature measurement validity judgment for screening.

[0021] Step S8: Perform a multi-condition joint judgment on the validity of the temperature measurement result for each measuring point, classify and process the temperature measurement results, and obtain the final valid temperature value based on the judgment results.

[0022] Preferably, the classification and processing of temperature measurement results includes: Temperature measurement results are categorized into valid results, low-reliability results, abnormal results, and invalid results. When the control unit identifies a measurement point as a low-confidence result, an abnormal result, or an invalid result, it performs one or more of the following operations: Conduct supplementary testing immediately within the current cycle; Output abnormal warning information; Upload the anomaly marker along with the temperature measurement results; Add this measurement point to the list of key points for review; When multiple consecutive cycles of anomalies occur, a higher level of attention alert is triggered.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) This invention uses the output state of the servo motor, load changes, displacement changes, or angle changes as feedback information for the opening state of the furnace cover. The control unit identifies and judges the feedback information in real time, transforming the opening process from an "open-loop fixed action" to a "closed-loop adaptive control". When abnormal resistance is detected, the system can automatically perform actions such as deceleration, torque increase, pause, retraction and secondary opening, or abnormal shutdown according to the actual state, instead of continuously driving in a fixed manner. This significantly improves the adaptability to complex working conditions such as individual differences in coke oven covers, ash accumulation, and thermal expansion deviation.

[0024] (2) This invention incorporates a temperature measurement validity judgment logic in the control unit. This logic not only filters and compensates the infrared temperature measurement data but also considers the furnace lid opening status, environmental disturbance level, continuous sampling fluctuations, and deviations from historical adjacent temperature changes to comprehensively determine the validity of the measurement results. This change enhances the system's data processing capability from "acquisition and transmission" to "acquisition, correction, judgment, and output." Through this mechanism, unreliable data caused by improper lid opening, sudden increases in smoke and dust, excessive temperature fluctuations, or short-term anomalies can be identified. Further processing such as supplementary measurement, anomaly marking, priority retesting, or reporting alarms can be performed, improving the reliability of the output data.

[0025] (3) Through a systematic design of heat insulation layout, layered installation, closed-loop execution feedback, environmental perception compensation, and unified control logic, this invention upgrades the device from "capable of automatically opening the lid and measuring the temperature" to an intelligent measurement system that "can adaptively complete lid opening, temperature measurement, correction, judgment, and uploading based on the on-site conditions." This improves the long-term operational stability of the coke oven under high-temperature conditions and the reliability of the automatic opening and resetting process of the furnace lid. It also enhances the adaptive handling capability under abnormal operating conditions, providing a more stable and reliable data foundation for continuous monitoring, trend analysis, and intelligent fire adjustment of the coke oven's straight-line temperature. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the automatic coke oven straight-line temperature measurement system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the structure of the plastic outer cover in the automatic temperature measurement system for coke oven straight-line operation provided in this embodiment of the invention. Figure 3 This is a schematic diagram (I) of the internal structure of the automatic coke oven straight-line temperature measurement system provided in this embodiment of the invention. Figure 4 This is a cross-sectional view of the automatic coke oven straight-line temperature measurement system provided in an embodiment of the present invention; Figure 5 This is a schematic diagram (II) of the internal structure of the automatic coke oven straight-line temperature measurement system provided in this embodiment of the invention. Figure 6 This is a schematic flowchart of the control method steps of the system provided in the embodiment of the present invention.

[0027] The meanings of the reference numerals in the figure are as follows: 1. Rain cover; 2. Flange seat; 3. Antenna; 4. Heat insulation board; 5. Base; 6. Plastic cover; 7. Battery pack; 8. Control unit; 9. Infrared temperature measurement component; 10. Servo motor; 11. Linkage mechanism; 12. Support stud; 13. Furnace cover; 14. Intermediate sleeve; 15. Mounting bracket; 101. Ventilation hole; 111. Active linkage; 112. Driven linkage; 131. Hinge; 132. Hinge seat; 141. Outer step; 142. Inner step; 21. Sleeve body; 41. Clearance opening. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0029] Example 1 Combination Figures 1-5 As shown in the figure, the coke oven straight-line temperature automatic measurement system described in this embodiment adopts a structure in which layers are arranged vertically and work together along the central axis of the system. From bottom to top, it includes: a high-temperature installation and load-bearing layer, a heat insulation support layer, a cover opening and transmission layer, a temperature sensing layer, a control and power supply layer, and an external protection layer. The layers are connected by support components, connectors and electrical connection lines to form structural connections, power transmission connections and signal connections, thereby realizing a collaborative working system for automatic cover opening, status detection, temperature acquisition, data processing and wireless transmission.

[0030] In this embodiment, the automatic coke oven vertical temperature measurement system of the present invention can automatically perform temperature measurement tasks according to a preset time cycle, and can also execute corresponding processes after receiving temperature measurement commands from an external system. It includes a flange seat 2 and a base 5 installed corresponding to the observation hole on the top of the coke oven. The base 5 is located at the bottom of the automatic coke oven vertical temperature measurement system and is preferably made of high-temperature resistant metal material. Its lower surface faces the high-temperature area of ​​the coke oven, and its upper surface serves as the installation reference surface for the entire system. The flange seat 2 is located on the base 5 and is fixedly connected to the base 5 by a support stud 12. The flange seat 2 is used to connect to the coke oven top mounting position to achieve the positioning and fixation of the entire system. A sealing gasket or high-temperature resistant seal can be provided between the base 5 and the coke oven top mounting position to improve installation stability and reduce flue gas leakage. An execution channel is provided in the central area of ​​the base 5. The execution channel is located at the center of the base 5, and the furnace cover 13 is sealed within the execution channel. The furnace cover 13 is hinged to the base 5 via a hinge 131. The opening mechanism is connected to the furnace cover 13 so that power is transmitted longitudinally to the furnace cover 13, causing the furnace cover 13 to flip to open or close the top of the coke oven. The base 5 bears both the overall installation load and the reaction force from the opening and resetting process of the furnace cover 13, thus serving as the basic load-bearing component of the entire system.

[0031] Two spaced-apart heat insulation plates 4 are provided on the upper side of the base 5. The heat insulation plates 4 are fitted together with the upper side of the base 5 and connected by multiple support studs 12. Preferably, the multiple support studs 12 are evenly distributed along the outer perimeter of the base 5. The lower ends of the multiple support studs 12 penetrate the lower heat insulation plate 4 and are fixed to the base 5 by bolts. The upper ends of the multiple support studs 12 are fixed to the heat insulation plate 4 by bolts, forming an axial gap between the two heat insulation plates 4. This gap constitutes an air insulation cavity, used to prevent the direct upward conduction of high-temperature heat received by the base 5. Furthermore, the heat insulation plates 4 are located above the high-temperature installation and stress layer and below the cover opening actuator, serving as thermal insulation and installation transition.

[0032] A clearance opening 41 is provided between the two heat insulation plates 4 for the linkage mechanism 11 of the lid opening actuator to pass through, so as to ensure that the power of the lid opening actuator can be transmitted from the upper drive component to the lower actuator, while minimizing the upward conduction of heat. The clearance opening 41 of the lower heat insulation plate 4 is circular, and the diameter of the clearance opening 41 of the lower heat insulation plate 4 is larger than that of the furnace cover 13, so that the furnace cover 13 can be exposed and flipped open.

[0033] An opening mechanism is installed on the upper heat insulation plate 4. The opening mechanism includes a servo motor 10, a mounting bracket 15, and a linkage mechanism 11. The mounting bracket 15 is fixed in the upper heat insulation plate 4 at the location with the clearance opening 41. The servo motor 10 is fixedly installed inside the mounting bracket 15. The output shaft of the servo motor 10 is located at the bottom of the mounting bracket and serves as the drive source for the opening action. The servo motor 10 is located in the relatively low-temperature area above the upper heat insulation plate 4 to reduce the impact of high temperature on drive performance and service life.

[0034] The linkage mechanism 11 includes an active linkage 111 and a driven linkage 112. The output shaft of the servo motor 10 is fixedly connected to one end of the active linkage 111. The other end of the active linkage 111 is hinged to one end of the driven linkage 112. The other end of the driven linkage 112 is hinged to the hinge seat 132 of the furnace cover 13. The clearance opening 41 of the upper heat insulation plate 4 is rectangular, and the length of the clearance opening of the upper heat insulation plate 4 is greater than the length of the active linkage 111, so as to avoid the rotation of the active linkage 111. The hinge seat 132 of the furnace cover 13 and the hinge 131 on the furnace cover 13 are on the same center line and are spaced apart from each other, so that the servo motor 10 can drive the active linkage 111 and the driven linkage 112 to move and drive the furnace cover 13 to flip.

[0035] The servo motor 10, linkage mechanism 11, and furnace cover 13 are arranged along the central axis of the system, forming a power transmission chain from top to bottom. This arrangement places the drive source away from the high-temperature zone and the actuation point close to the furnace cover 13, thus achieving a structural layout of "low-temperature zone drive, high-temperature zone actuation." In a preferred embodiment, a position limiting component or buffer component can also be provided between the driven linkage 112 and the hinge seat 132 of the furnace cover 13 to limit the maximum opening angle, prevent overshoot, and reduce mechanical impact during the opening and resetting process of the furnace cover 13.

[0036] In this embodiment, to achieve adaptive control during the opening process of the furnace cover 13, the present invention also includes a resistance detection unit in the cover opening actuator. The resistance detection unit may be one or more combinations of a torque detection module, a current detection module, a displacement detection module, and an angle encoding module.

[0037] In one embodiment, the resistance detection unit is disposed at the output end of the servo motor 10 or in the drive circuit of the servo motor 10, and forms a signal connection with the servo motor 10 to obtain information on the output angle, speed, current or load change of the servo motor 10 during the drive process. In another embodiment, a resistance detection unit is disposed at the hinge position where the active connecting rod 111 and the driven connecting rod 112 are hinged together, or on the hinge seat 132 of the furnace cover 13, for sensing the force state, displacement change, or whether the action is in place of the connecting rod. The aforementioned resistance detection unit is arranged spatially adjacent to the lid opening actuator and is connected to the control unit 8 via a wire or signal interface, for feeding back to the control unit 8 the opening resistance, jamming state, and action completion status of the furnace cover 13.

[0038] Therefore, the resistance detection unit in the lid-opening actuator forms a closed-loop connection between mechanical execution and state feedback, providing a basis for subsequent adaptive speed regulation, torque compensation, abnormal shutdown, and secondary lid-opening judgment.

[0039] For example, an infrared temperature measuring component 9 is provided at one end of the clearance opening 41 of the upper heat insulation plate 4. The infrared temperature measuring component 9 is electrically connected to the control unit 8 through a wire or interface to transmit the collected infrared temperature signal to the control unit 8 for processing. The sensing part of the infrared temperature measuring component 9 is located in the axial spacing space after sensing the clearance opening 41 of the upper heat insulation plate 4. The height of the sensing part of the infrared temperature measuring component 9 is greater than the diameter of the furnace cover 13 after it is opened. After the furnace cover 13 is opened, it is offset from the sensing part of the infrared temperature measuring component 9 to ensure that the field of view of the infrared temperature measuring component 9 is unobstructed after the opening action is completed. The infrared temperature measuring component 9 includes an infrared temperature sensor, a support, a protective window, an aiming or fine-tuning structure, and a necessary protective cover. The protective window is preferably made of quartz glass, high-temperature resistant light-transmitting material, or other protective components suitable for infrared transmission, and can be sealed to the shell to prevent dust, smoke, or water vapor from directly adhering to the sensor detection end. The specific structure of the infrared temperature sensor is a commonly used and publicly known technical means, so it will not be described in detail here.

[0040] In this embodiment, to improve the accuracy of temperature measurement results in the complex environment of the coke oven roof, the present invention also includes an environmental sensing module. The environmental sensing module may include an ambient temperature sensor, a background radiation detection unit, a smoke and dust detection unit, an attitude detection unit, or a combination thereof.

[0041] An ambient temperature sensor is preferably located in the heat-shielded area on the outer edge of the plastic cover 6 to sense the ambient temperature of the system. The background radiation detection unit and the smoke and dust detection unit are preferably located near the temperature measurement field of view to acquire the background thermal radiation intensity and smoke and dust interference status during temperature measurement. The attitude detection unit can be located near the mounting plate or control unit 8 to monitor changes in the overall attitude. The aforementioned environmental sensing modules are connected to the control unit 8 via wires or a bus, and together with the infrared temperature measurement component 9, form the data input terminal for temperature measurement validity judgment and environmental compensation. The plastic cover 6 is fixed to the top of the mounting bracket.

[0042] For example, a control unit 8 and a power supply unit are provided in the upper middle region of the system. The control unit 8 is fixedly installed in the first mounting cavity of the plastic cover 6, and the servo motor 10, the resistance detection unit, the infrared temperature measurement component 9, the environmental sensing module, and the wireless communication module are electrically and signal connected to the control unit 8 for control. The control unit 8 is used to perform cover opening control, resistance identification, temperature data acquisition, environmental compensation calculation, task scheduling control, and wireless communication management.

[0043] The power supply unit preferably includes a battery pack 7, which is arranged on one side of the control unit 8 and fixedly installed in the second mounting cavity of the plastic cover 6. The battery pack 7 is electrically connected to the control unit 8 to provide operating power for the servo motor 10, sensors, communication module, and control unit 8. The battery pack 7 and control unit 8 are jointly disposed in a relatively low-temperature space above the heat insulation plate 4 to reduce the impact of high temperature on battery performance and lifespan. To improve operational stability, a power management module can be installed between the power supply unit and the control unit 8 to realize power switching, low-power management, power detection, and overcurrent protection.

[0044] For example, a wireless communication module is provided near the control and power supply layer. The wireless communication module is preferably integrated with the control unit 8, or it can be fixedly installed as a separate module near the control unit 8. The wireless communication module is electrically connected to the control unit 8 and is used to receive control commands, upload temperature data, and send abnormal alarm information.

[0045] Antenna 3, connected to the wireless communication module, is located beside the plastic housing 6. Antenna 3 is connected to the internal wireless communication module through a through-shell structure, thereby placing antenna 3 in a spatial area more conducive to wireless signal transmission and reception, reducing the obstruction of the metal structure and the influence of the housing on the signal. Antenna 3 is preferably arranged to extend upward or outward to ensure wireless transmission quality.

[0046] A flange seat 2 is fixed to the upper side of the upper heat insulation plate 4. The mounting bracket 15 and the plastic cover 6 are located inside the sleeve 21 of the flange seat 2. An intermediate sleeve 14 is fitted onto the sleeve 21 of the flange seat 2. The top of the sleeve 21 of the flange seat 2 abuts against and limits the inner step 142 of the inner wall of the middle part of the intermediate sleeve 14. A rain cover 1 is provided above the plastic cover 6. The rain cover 1 covers the top of the plastic cover 6. The rain cover 1 and the plastic cover 6 are spaced apart or connected to each other to prevent dust, rainwater and high-temperature flue gas from directly entering the shell. The rain cover 1 is preferably made of high-temperature resistant metal material, such as 304 stainless steel. Its external dimensions are larger than the top projected area of ​​the plastic cover 6 to improve the top protection effect. Ventilation holes 101 are formed on the rain cover 1. The rain cover 1 is fitted onto the upper part of the intermediate sleeve 14. The lower end of the rain cover 1 abuts against and limits the outer step 141 of the inner wall of the middle part of the intermediate sleeve 14.

[0047] The collaborative relationship of the various components in this invention includes: the base 5, flange seat 2, heat insulation plate 4, and support stud 12 together form the installation and heat insulation support foundation of the whole machine; the servo motor 10, linkage mechanism 11, and furnace cover 13 together form the automatic lid opening execution chain; the resistance detection unit cooperates with the lid opening execution chain to form the action status feedback chain; the infrared temperature measurement component 9 and the environmental sensing module together form the temperature acquisition and environmental compensation input chain; the control unit 8 is connected to the execution chain, feedback chain, acquisition chain, and communication chain respectively to form a unified control and data processing center; the wireless communication module and antenna 3 form an external data interaction channel; and the plastic outer cover 6 and rain cover 1 together form the electronic component protective layer.

[0048] When the system is running, the control unit 8 sends a drive command to the servo motor 10, which drives the furnace cover 13 to open via the linkage mechanism 11. The resistance detection unit simultaneously collects resistance information during the operation and feeds it back to the control unit 8. After determining that the furnace cover 13 is fully open, the control unit 8 controls the infrared temperature measurement component 9 to collect the temperature of the target area inside the coke oven, and at the same time receives environmental parameters from the environmental sensing module. The control unit 8 performs temperature compensation and validity judgment based on the temperature measurement signal and environmental parameters, and sends the results to the external system through the wireless communication module. After the temperature measurement is completed, the control unit 8 controls the servo motor 10 to reverse the action, so that the furnace cover 13 returns to the closed state, thereby completing a closed-loop process of automatic opening, temperature measurement, processing, uploading and resetting.

[0049] In this embodiment, the system installation method and initial arrangement of the present invention include: installing a base 5 at the bottom of the coke oven at the corresponding position of the observation hole on the top of the coke oven, so that the lower part of the base 5 is positioned opposite to the high-temperature area of ​​the coke oven. During installation, the base 5 is fixedly connected to the mounting surface of the coke oven top, and the connection stability and sealing performance are improved by using a high-temperature resistant sealant. Two layers of heat insulation plates 4 are connected above the base 5 by support studs 12, so that an axially spaced air insulation cavity is formed between the two heat insulation plates 4 above the base 5. A servo motor 10, a linkage mechanism 11, a control unit 8, a battery pack 7, a wireless communication module, and an infrared temperature measurement component 9 are installed above the heat insulation plates 4, and a plastic outer cover 6 and a rain cover 1 are installed on the outside to form a relatively enclosed working space with heat insulation, dustproof, and waterproof capabilities. After installation, the cover-opening actuator is in its initial position, and the furnace cover 13 is positioned within the execution channel. The infrared temperature measurement component 9 is directed towards the area to be measured inside the coke oven along the central axis of the device or a preset temperature measurement direction. The control unit 8 completes the electrical and signal connections with the servo motor 10, the resistance detection unit, the infrared temperature measurement component 9, the environmental sensing module, and the wireless communication module. After power-on, the system enters a low-power standby mode, retaining only the clock, task monitoring, status detection, or necessary wake-up functions.

[0050] In this embodiment, the overall working principle of the system includes: the control unit 8 wakes up the system according to preset scheduling conditions or external task instructions, first reads the environmental and system status information, and after confirming that the equipment has the execution conditions, controls the opening mechanism to move, so that the furnace cover 13 transitions from the closed state to the open state; during the opening process, the driving resistance, displacement, angle, current or torque change information are collected simultaneously to determine whether the furnace cover 13 is stuck, misaligned or has abnormal resistance; when the control unit 8 determines that the furnace cover 13 is in place, the infrared temperature measurement component 9 is activated to perform non-contact temperature acquisition of the target area inside the coke oven, and simultaneously collects environmental parameters such as ambient temperature, background radiation, smoke and dust status or attitude status; the control unit 8 performs filtering, compensation, validity judgment and anomaly identification processing on the collected temperature data to obtain the straight-line temperature result; then, the temperature measurement result, status information and anomaly information are sent to the external system through the wireless communication module; after the data is sent, the control unit 8 controls the opening mechanism to move in the reverse direction, so that the furnace cover 13 returns to the closed state, and the system re-enters the standby state, thereby completing a complete automatic temperature measurement closed-loop process.

[0051] Example 2 In this embodiment, combined with Figure 6 As shown in this embodiment, the control method for an automatic coke oven straight-line temperature measurement system includes the following operating steps: Step S1: System wake-up and task triggering.

[0052] In this embodiment, when the preset temperature measurement time interval is reached, or when the wireless communication module receives a temperature measurement task instruction sent by the external control system, the system is woken up, and the control unit 8 in the system switches from the low-power standby state to the working state to start the current temperature measurement task.

[0053] For example, control unit 8 in the system performs a self-test process, including: Read battery voltage or remaining power information; Check if the drive circuit of servo motor 10 is normal; Check if the infrared temperature measurement component 9 is online; Check whether the environmental perception module has effective output; Detect the connection status of the wireless communication module.

[0054] When the above detection results meet the preset operating conditions, the system proceeds to the next step; if there is insufficient power supply, sensor offline, communication abnormality or drive abnormality, the fault status is recorded and the protection process is entered. The present invention can choose to directly report the abnormal information or terminate the current task according to the settings.

[0055] Step S2: Collect the environmental status before running.

[0056] In this embodiment, before formally executing the lid-opening action, the control unit 8 first collects the environmental parameters of the system. The environmental parameters include at least one or more of the following: ambient temperature, background thermal radiation intensity, smoke and dust interference level, system attitude status, internal working temperature of the outer shell, and safety status information around the furnace top. Then, based on the environmental parameters and a set threshold, it determines whether the current operating conditions are suitable for temperature measurement and provides basic data for subsequent temperature compensation.

[0057] For example, in this invention, the control unit 8 records the ambient temperature as... The background radiation parameter is denoted as The parameter for smoke and dust interference is denoted as When environmental parameters exceed the preset safe or effective temperature measurement range, the control unit 8 can delay the opening action, reduce the task priority, or directly enter the abnormal reporting process to avoid outputting distorted data under obviously unsuitable conditions.

[0058] Step S3: Adaptive opening process of furnace cover 13.

[0059] In this embodiment, the control unit 8 outputs a drive command to the servo motor 10, which then begins to operate according to a preset angular velocity, preset angular displacement, or preset drive curve. Its output motion is transmitted to the furnace cover 13 via the linkage mechanism 11, causing the furnace cover 13 to move from a closed state to an open state. During this dynamic process, the servo motor 10 is located in a relatively low-temperature region above the heat insulation plate 4, while the linkage mechanism 11 transmits the driving force downwards to the bottom position near the furnace cover 13, ensuring that the high-temperature area primarily performs the actions, while the drive source body is prevented from being directly exposed to the high-temperature environment. Unlike existing schemes that only perform fixed actions, this invention simultaneously collects the state quantities output by the resistance detection unit during the opening process. These state quantities can be motor current, output shaft angle deviation, drive torque, linkage displacement, or a combination thereof. The control unit 8 calculates the opening resistance characteristic parameters based on the collected values. This is used to characterize the current opening resistance state of the furnace cover 13.

[0060] For example, the opening resistance characteristic parameter in this invention The output current of servo motor 10 can be used as a reference. angular velocity and change in motion displacement A comprehensive characterization is performed. If the control unit 8 detects a significant change in the output of the servo motor 10 within a set time period while the displacement of the furnace cover 13 is insufficient, or if the load signal remains above a threshold... If the condition is abnormal, it is determined that there is jamming, dust accumulation, or abnormal resistance. Then, proceed to step S4, the abnormal opening identification and adaptive adjustment step.

[0061] Step S4: Abnormal opening identification and adaptive adjustment.

[0062] In this embodiment, after detecting abnormal opening resistance of the furnace cover 13, the control unit 8 does not directly continue to execute the fixed action. Instead, it enters an adaptive adjustment process based on the degree of abnormality, the duration of the abnormality, and the current position state to avoid continuous rigid driving of the cover-opening actuator, which could cause impact amplification, mechanism wear, increased deflection of the furnace cover 13, or failure to open the cover. In this invention, the control unit 8 preferably classifies the current abnormal state based on the current, torque, angle change, displacement change, action duration, and their combination information output by the resistance detection unit. Preferably, the abnormal state can be divided into mild abnormality, moderate abnormality, and severe abnormality. Mild abnormality indicates that the furnace cover 13 has increased resistance but still has the possibility of continuing to open; moderate abnormality indicates that the furnace cover 13 is obviously stuck, attached, or misaligned, and a single fixed drive is difficult to complete the opening; severe abnormality indicates continuous high resistance, basically no change in displacement, the action has approached the safety boundary of the mechanism, or continued drive may cause damage. After completing the abnormality classification, the control unit 8 calls the corresponding adaptive adjustment strategy to perform adaptive adjustment, including one or more of the following control methods: For example, adaptive adjustment to reduce lid opening speed: When the control unit 8 detects that the furnace cover 13 is in a slightly abnormal state, it prioritizes speed reduction control. Specifically, the control unit 8 switches the servo motor 10 from the initial opening speed to a lower opening speed, thus switching the furnace cover 13 from the normal opening mode to a low-speed slow-opening mode. This method is suitable for situations where there is a small amount of ash accumulation on the surface of the furnace cover 13, slight thermal expansion and tightness, or initial adhesion but no obvious jamming.

[0063] In one implementation, when the control unit 8 detects that the resistance characteristic parameter is higher than the first abnormal threshold for several consecutive sampling cycles, and the displacement of the furnace cover 13 continues to increase slowly, it determines that continuing to open the furnace is still feasible. Instead of immediately stopping the machine, it first reduces the speed of the servo motor 10 to a predetermined proportion of the current set value and maintains this low-speed operation for a short observation period. During this observation period, if the resistance characteristic parameter returns to the normal range and the displacement of the furnace cover 13 resumes continuous growth, the control unit 8 determines that the abnormality has been alleviated and continues to complete the remaining opening action at a low speed, or gradually restores the normal opening speed in the subsequent stable phase. This method avoids excessive intervention immediately when resistance fluctuations first appear and also avoids amplified impact caused by continuous high-speed drive, thereby improving the adaptability to minor abnormal operating conditions.

[0064] For example, adaptive adjustment of driving force or driving torque is increased in stages: When the control unit 8 detects that the furnace cover 13 is in a moderately abnormal state, that is, the displacement of the furnace cover 13 increases slowly and the load remains high, but has not yet reached a severely jammed state, a control strategy of increasing the driving force or driving torque in stages can be executed. The core idea is not to increase the driving force drastically all at once, but to gradually increase the output according to a preset level, so as to try to overcome the resistance caused by ash accumulation, local coking, or mild to moderate thermal deformation while ensuring the safety of the mechanism.

[0065] In one implementation, the control unit 8 first maintains the first-stage drive output at the current low speed. If the displacement of the furnace cover 13 does not improve significantly during the first stage, the driving force or driving torque is increased to the second stage. If the predetermined displacement improvement effect is still not achieved after the second stage, the third stage of drive is initiated. A judgment window is set between each stage. Within each judgment window, the control unit 8 simultaneously monitors changes in current, torque, and displacement to determine whether the torque increase in that stage is effective. For example, if the displacement of the furnace cover 13 recovers significantly within a short time after a certain stage of torque increase, and the load signal no longer continues to deteriorate, it indicates that the current stage of torque increase is effective, and the control unit 8 maintains the output of that stage without further increasing the driving force. Conversely, if the displacement remains essentially unchanged after two consecutive stages of torque increase, the control unit 8 considers that simply increasing the driving force cannot effectively resolve the anomaly and should switch to a pause-and-restart or termination protection strategy. This invention, by increasing the driving force or driving torque in stages, avoids the coarse control of "one-time strong pulling" in traditional methods, reduces mechanism overload and local impact, and is beneficial to reflecting the adaptive fine adjustment characteristics of this invention.

[0066] For example, adaptive adjustment for performing a second restart action after pausing: When the control unit 8 determines that the abnormality of the furnace cover 13 is more likely caused by ash accumulation, local seizing, thermal deformation misalignment, or an undesirable initial force direction, it can perform a pause followed by a second opening action in the early stage of moderate or partially severe abnormalities. This method is not a simple repetition of the original action, but rather changes the force state of the furnace cover 13 through a "pause-unload-retract-reopen" process, thereby increasing the probability of clearing the jam.

[0067] In one embodiment, when the control unit 8 detects that the resistance is continuously higher than the second abnormal threshold and the displacement of the furnace cover 13 does not increase significantly within a preset time window, it first pauses the current drive output, causing the opening actuator to stop briefly, in order to reduce the aggravation of thermal jamming caused by continuous force; then it controls the servo motor 10 to perform a small retraction, causing the furnace cover 13 to slightly move away from the current force peak or jamming contact position; after the retraction is completed, the control unit 8 re-executes the opening action at a lower speed and a higher initial drive force.

[0068] In this invention, the secondary opening action is not a complete repetition of the first action, but can employ a different combination of opening parameters, such as a lower speed, a longer acceleration time, a smoother starting force change curve, or a higher driving force within an initial range of angles followed by a return to normal driving. If the displacement of the furnace cover 13 returns to normal growth after the secondary opening action, it indicates that the jamming has been resolved, and the control unit 8 allows entry into the subsequent opening position determination step; if there is still no significant improvement after the secondary opening action, the process of limiting the action amplitude or abnormal termination can be further initiated. This strategy of "pausing and then executing the secondary opening action" in this invention, compared to the traditional fixed-track continuous strong drive, better reflects the targeted adaptation to complex on-site working conditions.

[0069] For example, adaptive adjustment to limit the maximum range of motion: When the control unit 8 detects that the furnace cover 13 is close to the preset limit position under abnormal conditions, or when abnormal displacement, abnormal angle and high load occur at the same time, in order to prevent the linkage mechanism 11 from overshooting, jamming and then pulling, the furnace cover 13 from tilting more, or the mechanism from impacting, the maximum movement amplitude limit strategy can be executed.

[0070] In one implementation, the control unit 8 pre-sets a safe action range upper limit before opening the lid. This upper limit can correspond to the maximum safe angle of the servo motor 10, the maximum safe swing angle of the linkage, the maximum allowable displacement of the furnace lid 13, or a combination thereof. During operation, if the control unit 8 detects that the current actual action is close to this safe upper limit, but the furnace lid 13 has not yet reached the normal open position, the opening actuator is no longer allowed to increase displacement or angle, and the current action is capped within the safe boundary. For example, in the event of significant misalignment or jamming, if further increasing the angle only leads to an abnormal increase in force on the linkage mechanism 11, preventing effective lifting of the furnace lid 13, the control unit 8 promptly limits the maximum action range, stops further outward pushing, and prevents the opening actuator from entering a dangerous operating condition. At this time, the system can maintain the current position for a brief assessment, and if necessary, attempt a second opening action after the aforementioned retraction; if there is still no improvement, an abnormal alarm termination process is initiated. The significance of this strategy in this invention lies not in simply pursuing "opening as much as possible," but in prioritizing the protection of the mechanism and system safety under abnormal operating conditions, ensuring that the control logic balances the success rate of lid opening with equipment reliability.

[0071] For example, adaptive adjustment that outputs anomaly alerts and terminates the task: When the control unit 8 determines that the furnace cover 13 is in a severely abnormal state, it outputs an abnormal alarm and terminates the task. The severely abnormal state may include one or more of the following situations: the resistance characteristic parameter is continuously higher than the severe abnormal threshold for a long time; the displacement remains basically unchanged for multiple consecutive judgment cycles; the abnormality has not been resolved after implementing strategies such as speed reduction, phased torque increase, and pause followed by secondary opening; the current action has approached or reached the maximum safe action range; or continued action may cause overload of the cover opening actuator, damage to the connecting rod, or structural damage to the furnace cover 13.

[0072] In one implementation, when any of the above termination conditions are met, the control unit 8 immediately stops executing the lid-opening action and records the anomaly type, anomaly occurrence time, current action position, load status, and previously executed adjustment strategies. Subsequently, the control unit 8 reports the "lid-opening anomaly" status to an external system via the wireless communication module, possibly including the anomaly level, corresponding measurement point number, and reason for the incomplete task. If necessary, the system can also maintain the furnace lid 13 in its current relatively safe position or perform controlled retraction, returning the lid-opening actuator to its initial standby position.

[0073] In a preferred embodiment, if the current task is terminated due to an abnormal opening of the lid, the control unit 8 will not proceed to the subsequent infrared temperature measurement steps to avoid outputting distorted temperature measurement results when the furnace lid 13 is not properly opened, the field of view is obstructed, or the status is uncertain. At the same time, the control unit 8 can add an abnormal marker to the abnormal measurement point and include it in the list of objects for manual review or high-priority review in subsequent scheduling cycles.

[0074] In this invention, the preferred execution logic for constructing multi-strategy linkage includes: adaptive adjustment does not select only a single action, but calls different strategies step by step according to the degree of abnormality. The preferred execution order may be: first, reduce the opening speed; if ineffective, increase the driving force or driving torque in stages; if still ineffective, perform a pause followed by a second opening action; simultaneously implement maximum action amplitude limits throughout the process; when all restorative measures are ineffective or the safety boundary has been reached, output an abnormal alarm and terminate the task. That is, the opening abnormality adjustment process of this invention is a hierarchical control process from light to heavy, from flexible recovery to protective termination, rather than a single fixed response action. Through this control process, more suitable adjustment methods can be automatically matched according to different abnormal operating conditions, improving the opening success rate, reducing impact damage, and enhancing the long-term stable operation capability in the complex thermal environment of the coke oven site.

[0075] Step S5: Determine if furnace cover 13 is fully opened.

[0076] In this embodiment, when the control unit 8 determines that the furnace cover 13 has reached the preset opening position based on changes in angle, displacement, time, resistance, or limit status, it outputs a "cover in place" signal and allows the infrared temperature measurement component 9 to enter the working state. The determination of "open in place" preferably considers one or more of the following conditions: the servo motor 10 reaches a preset target angle, the furnace cover 13 reaches a preset displacement threshold, the resistance characteristic parameter recovers from a high-resistance state to a stable state, the action duration reaches a preset value and the temperature measurement field of view is unobstructed, and the limit switch or position sensor outputs a "open in place" signal. The system only enters the temperature measurement step after determining that the furnace cover 13 is in place, to avoid collecting distorted infrared signals when the furnace cover 13 is not fully open and the detection path is still obstructed.

[0077] Step S6: Collect infrared temperature data.

[0078] In this embodiment, after the furnace cover 13 is fully opened, the infrared temperature measuring component 9 performs non-contact infrared detection on the target area inside the coke oven along a preset field of view, collecting the raw infrared temperature value. The control unit 8 can control the infrared temperature measuring component 9 to continuously collect single or multiple frames of temperature data, and record the collected raw temperature value as... To improve measurement stability, the control unit 8 preferably collects multiple sets of temperature data within a preset sampling time window, and performs mean filtering, median filtering, moving average filtering, or outlier removal processing on these multiple sets of data to reduce the impact of short-term fluctuations caused by instantaneous flame disturbance, smoke fluctuation, and dust obstruction. Specifically, the n continuously collected sets of raw temperature data can be denoted as: After filtering, a stable infrared temperature measurement value is obtained. .

[0079] Step S7: Perform environmental compensation and temperature correction.

[0080] In this embodiment, due to factors such as increased ambient temperature, enhanced background thermal radiation, smoke and dust obstruction, and attitude deviation in the coke oven top temperature measurement environment, after obtaining stable infrared temperature measurement values, the present invention further combines the parameters collected by the environmental sensing module to perform environmental compensation processing to obtain a correction result that is closer to the actual straight-line temperature.

[0081] In a preferred embodiment, the control unit 8 determines the ambient temperature parameter. Background radiation parameters and smoke interference parameters The infrared thermometer value is corrected to obtain the compensated linear temperature value. The compensation relationship can be expressed as:

[0082] in, , and The compensation coefficient can be determined through calibration tests, historical data fitting, or field operating experience. This compensation is mainly used to mitigate the general impact of ambient temperature rise, background thermal radiation, and dust interference on temperature measurement results in the coke oven environment.

[0083] In another preferred embodiment, the control unit 8 obtains the temperature value after basic compensation. Subsequently, attitude deviation information and lid opening positioning information were used as additional correction factors to further improve the accuracy of the correction. A second correction is performed to further eliminate errors caused by temperature measurement angle deviation, temperature measurement field of view skew, or incomplete obstruction by the furnace cover 13, to obtain the final corrected true straight-line temperature value. Its modification relation can be expressed as:

[0084] in, This is the attitude deviation correction term. This is a correction item for when the lid is fully opened.

[0085] In one specific embodiment, the attitude deviation information is acquired by an attitude detection unit mounted on the infrared temperature measurement component 9, the mounting bracket, or the cover opening actuator. The attitude detection unit can be a tilt sensor, an inertial measurement unit, an angle encoder, or attitude parameters calculated from multiple position sensors. The control unit 8 compares the attitude of the temperature measurement component at the current temperature measurement moment with a pre-calibrated standard temperature measurement attitude to obtain the attitude deviation. The attitude deviation may include pitch deviation, yaw deviation, or a comprehensive deviation parameter composed of pitch deviation and yaw deviation.

[0086] Preferably, the attitude deviation correction term It can be represented as:

[0087] in, This is the attitude correction coefficient. The attitude deviation parameter characterizes the degree of deviation of the current temperature measurement direction from the standard temperature measurement direction. A larger attitude deviation indicates that the infrared probe is more likely to deviate from the center region of the target fire channel, or that its measurement field of view is more likely to be mixed with thermal radiation from the edge regions, thus causing the temperature measurement result to deviate from the true value. Therefore, by introducing... The error is corrected.

[0088] In another, more detailed implementation, if it is necessary to consider attitude deviations in different directions separately, the attitude correction term can also be written as:

[0089] in, For pitch deviation, For yaw deviation, and This is the correction coefficient for the corresponding direction. The correction coefficient can be obtained through calibration experiments, that is, under the conditions of normal opening of the furnace cover 13 and stable radiation in the target area, the difference between the measured temperature value and the reference value under different attitude deviations is collected, and then the correspondence between attitude deviation and temperature error is established. The opening position information is used to characterize whether the actual opening degree of the furnace cover 13 meets the effective temperature measurement requirements. The control unit 8 can calculate the current opening degree of the furnace cover 13 based on the displacement, rotation angle, position switch status or their combination information of the opening actuator, and form the opening position parameters. .

[0090] Preferably, the control unit 8 does not simply distinguish the state of the furnace cover 13 as "in place" or "not in place", but refines it into a continuous opening degree parameter to reflect the actual exposure of the temperature measurement field of view.

[0091] In a preferred embodiment, the cover opening correction item... It can be represented as:

[0092] in, This is the lid-opening correction factor, used when the lid is fully opened. Less than the standard opening degree If this occurs, it indicates that the furnace lid 13 has not yet reached the ideal open state, and the temperature measurement field of view may still be partially obstructed. The thermal radiation received by the infrared probe may be mixed with radiation from the edge of the furnace lid 13, shadows from obstructions, or non-target areas. In this case, by introducing... Correct for occlusion errors. When Approaching or reaching When the temperature is basically fully open, it indicates that the insufficient opening of the furnace cover 13 has little impact on the temperature measurement results, so the correction term decreases or approaches zero.

[0093] In a more preferred embodiment, to reflect the coupled effect of attitude deviation and insufficient opening of the cover on the temperature measurement results, the control unit 8 may further introduce a joint correction term. The following correction relation is obtained:

[0094] in, This term is used to characterize the combined error when both "significant posture deviation and insufficient lid opening" occur simultaneously. The joint correction term can be expressed as:

[0095] in, This is the joint correction factor. The significance of this joint correction term is that when the attitude deviation increases and the furnace cover 13 is not fully opened, the temperature measurement field of view not only shifts in direction, but may also be subject to residual obstruction. The two types of errors will superimpose each other. If only linear correction is performed separately, it may still not be able to fully reflect the actual deviation. Therefore, the correction accuracy is improved by adding a joint correction term.

[0096] In the specific implementation process, the control unit 8 preferably performs the correction in the following manner: first, based on the ambient temperature parameter Background radiation parameters and smoke interference parameters For the original temperature measurement value Basic compensation is provided to obtain Then read the current attitude deviation parameters. and parameters for opening the lid And calculate the attitude correction term respectively. And opening correction item When both posture deviation and insufficient lid opening are detected to exceed a preset threshold, a joint correction term is further calculated. Finally, output the corrected actual straight-line temperature value. .

[0097] Preferably, the control unit 8 can also incorporate attitude deviation parameters. and parameters for opening the lid The reliability of this temperature measurement result needs to be assessed. If... Exceeding the allowable deviation threshold, or If the temperature is below the minimum effective opening threshold, the control unit 8 determines that the current temperature measurement field of view does not meet the effective temperature measurement requirements. Instead of directly using the current corrected temperature as the final result, the control unit marks the data as low confidence data, triggers resampling, or sends it to the subsequent temperature measurement validity judgment step for further screening.

[0098] In this way, the attitude deviation information and the lid opening position information not only serve as input parameters for temperature correction but also as auxiliary criteria for judging the validity of the temperature measurement results, thus organically combining the preceding lid opening control logic with the subsequent temperature correction logic. In this invention, instead of simply using conventional ambient temperature, background radiation, and smoke parameters to generally compensate for the infrared temperature measurement values, the positioning status information during the lid opening process and the attitude deviation information of the temperature measurement component are further introduced into the temperature correction process. This establishes a continuous correlation between temperature correction and the lid opening action state and the temperature measurement field of view state, thereby more effectively eliminating errors caused by temperature measurement angle offsets, insufficient opening exposure, and residual obstruction, improving the accuracy and reliability of the coke oven flue thermal state identification results. After outputting the candidate temperature value after environmental compensation and additional correction, the control unit 8 simultaneously reads the multi-frame temperature sequence, environmental disturbance parameters, attitude deviation parameters, and lid opening state parameters within the current temperature measurement window and sends them to step S8 for temperature measurement validity judgment and anomaly identification.

[0099] Step S8: Determine the validity of temperature measurement and identify anomalies.

[0100] In this embodiment, after obtaining the compensated temperature value, the control unit 8 does not directly use it as the final result, but further performs a temperature measurement validity judgment to distinguish between "valid temperature measurement results that can be directly used," "low-confidence results that need to be remeasured," and "abnormal results that require warning." In a preferred embodiment, the control unit 8 performs a multi-condition joint judgment on the current temperature measurement result of each measuring point. The temperature measurement validity judgment includes one or more of the following: For example, determining whether the measured temperature value is within a reasonable temperature range: Control unit 8 pre-stores reasonable temperature ranges corresponding to different coke oven operating conditions, different flue locations, or different measuring point types. Let the compensated current measuring point temperature be... ,like Below the lower limit temperature or above the upper limit temperature If the result exceeds the physically reasonable range, the control unit determines that the result is outside the reasonable range. The judgment relationship can be expressed as:

[0101] When the above situations occur, the control unit 8 does not immediately output the temperature value as the final result, but instead prioritizes verification in conjunction with other judgment items. For example, if the temperature of a certain measuring point suddenly drops significantly below the historical normal range after compensation in the current cycle, and is accompanied by a large amount of smoke and dust interference parameters or insufficient opening of the cover, the control unit 8 will prioritize determining it as a low-confidence measurement result and trigger a supplementary measurement in the current cycle, rather than directly identifying it as a true low-temperature anomaly. As another example, if the temperature of a certain measuring point is significantly higher than the normal upper limit, and multiple frames of sampling maintain a high level, while environmental interference and attitude deviation are within the normal range, the control unit 8 can further mark it as a suspected thermal anomaly measuring point and initiate an anomaly warning process.

[0102] For example, to determine whether the fluctuation of multiple consecutive sampling frames exceeds a set threshold: the control unit 8 performs fluctuation analysis on the compensated temperature values ​​of N consecutive frames acquired within the same temperature measurement window. Let the temperatures of each frame within this temperature measurement window be: The control unit can then calculate the maximum fluctuation within that window. for:

[0103] when Exceeding the window fluctuation threshold If the control unit 8 determines that the stability of the current temperature measurement process is insufficient, the result may be affected by transient disturbances from smoke and dust, mechanical vibration, attitude swaying, or changes in field of view obstruction. For example, if the temperature is high in the first few frames and drops rapidly in the later frames within a temperature measurement window, and a slight swaying is detected in the open state, the control unit 8 can determine that the temperature measurement conditions within this measurement window are unstable, mark the temperature measurement result as a low-confidence result, and re-collect a set of temperature measurement data in the current cycle. Conversely, if the temperature values ​​fluctuate very little across multiple frames, it indicates that the field of view is stable and environmental disturbances are weak within the temperature measurement window. In this case, the control unit 8 increases the confidence score of the result and allows it to enter the subsequent historical deviation comparison step as a candidate valid result. In another embodiment, the control unit 8 can also measure the degree of fluctuation by calculating the mean, variance, or standard deviation of consecutive frames; any method that reflects the stability of the temperature measurement results within the same window can be used.

[0104] For example, determining whether environmental interference parameters are within an acceptable range: The control unit 8 determines whether the environmental disturbance during this temperature measurement is still within a compensable range based on the ambient temperature parameters, background radiation parameters, and smoke interference parameters obtained by the environmental sensing module. Although compensation for relevant interference has been performed in step S7, if the environmental disturbance is too strong, the temperature measurement result may still have significant uncertainty even after compensation. For example, when the smoke interference parameters... Exceeding the preset upper limit threshold When the control unit 8 determines that the current field of view is not clear enough, the temperature measurement result is not suitable for direct use. At this time, the control unit 8 can perform one or more of the following operations: resample after delaying for several sampling periods; trigger a supplementary measurement for this period; reduce the reliability of the current result; or send the current result to the abnormal data queue for subsequent verification. For example, when the background radiation parameter... If the value is significantly higher than the normal operating range, it indicates that there is strong background thermal reflection or interference from non-target radiation sources. In this case, the control unit 8 prefers to increase the requirements for other judgment items, such as requiring smaller fluctuations in multiple frames and more stable open-cover state before allowing the final result to be output.

[0105] For example, determining whether the open state remains stable throughout the entire temperature measurement window: the control unit 8 not only determines whether the furnace lid 13 has reached the open position, but also further determines whether the open state remains stable throughout the entire temperature measurement window. A stable open state means that during the continuous temperature measurement window, the displacement, angle, or position of the opening actuator does not fluctuate significantly, and the furnace lid 13 does not rebound, shake, re-obstruct, or undergo localized tilting changes.

[0106] For example, if the furnace lid 13 is already in the open position at the start of temperature measurement, but a significant drop in the opening angle is detected during subsequent continuous sampling, or the position changes from stable to unstable, the control unit 8 determines that there is a change in occlusion conditions within the temperature measurement window. In this case, even if a temperature value in a certain frame seems reasonable, it is not directly output as the final result, but rather the entire window is deemed invalid, and a retest is triggered. Alternatively, if the control unit 8 detects that the furnace lid 13 remains in the correct position throughout the entire temperature measurement window, and the fluctuation of the opening position parameter is less than a set threshold, then the field of view exposure state can be considered stable, thereby improving the reliability of the temperature measurement result.

[0107] For example, determining whether the attitude deviation is within the allowable range: In a preferred embodiment, the control unit 8 further utilizes the attitude deviation parameter obtained in step S7 to constrain the validity of the current temperature measurement result. Although attitude deviation can be used for temperature correction, when the attitude deviation is too large, correction alone may not be enough to restore the true temperature, therefore, an additional validity determination is required. This invention assumes the current attitude deviation parameter is... When it exceeds the allowed attitude threshold When the control unit 8 determines that the current temperature measurement direction deviates too much and does not meet the effective temperature measurement requirements, the judgment relationship can be expressed as: .

[0108] For example, to determine whether the deviation between the current measurement result and the results of adjacent historical periods is abnormal: the control unit 8 compares the current measurement point temperature with the corresponding measurement point temperature of adjacent historical periods to identify abrupt changes. Let the measurement point temperature corresponding to the previous measurement period be... The temperature measured in this cycle is Then its change can be expressed as: When | Exceeding the abnormal threshold When the temperature difference at a measurement point changes abnormally between adjacent cycles, the control unit 8 determines that such a change may originate from changes in the actual thermal state of the fire channel or from temperature measurement distortion. Therefore, it is necessary to further distinguish these differences by combining the validity judgment results of the current cycle. For example, if the temperature at a measurement point suddenly drops significantly in the current cycle compared to the previous cycle, and this cycle is accompanied by high smoke interference parameters and unstable open-cover conditions, the control unit 8 will prioritize determining that the abnormal change is caused by deterioration of measurement conditions, and will first perform supplementary measurement for the current cycle without immediately generating a process abnormality alarm. Conversely, if the temperature at a measurement point increases significantly in the current cycle compared to the previous cycle, and the fluctuations are small across multiple frames, the attitude is normal, the open-cover condition is stable, and environmental interference is acceptable, the control unit 8 may consider that the temperature difference change is more likely to reflect an abnormal actual thermal state of the fire channel, and will mark it as a temperature abnormality measurement point, outputting an abnormality warning message.

[0109] For example, if a measuring point shows abnormal deviation in the same direction for several consecutive cycles, the control unit 8 can increase the measurement priority of that measuring point in the next inspection cycle so as to confirm the abnormal trend earlier.

[0110] For example, in this embodiment, the multi-condition joint judgment and classification process includes: the control unit 8 does not draw a conclusion based on a single judgment item, but uses a multi-condition joint judgment method to classify the temperature measurement results. Preferably, the results can be divided into the following categories: The first category is valid results: the measured temperature value is within a reasonable range, the fluctuation across multiple frames is small, environmental interference is within an acceptable range, the open state is stable, the attitude deviation does not exceed the limit, and there are no abnormal jumps or the jumps can be reasonably explained compared with historical cycles. For this type of result, the control unit 8 outputs and stores it as the final temperature result of the current measuring point.

[0111] The second category is low-confidence results: these are results where the temperature readings do not significantly exceed the reasonable range, but exhibit issues such as large fluctuations across multiple frames, strong environmental interference, slight instability when opening the lid, and slightly large attitude deviations. For these results, control unit 8 preferentially triggers a supplementary test for the current cycle; if the results stabilize after the supplementary test, the supplementary test results are adopted; if the results remain unstable after the supplementary test, the current results are retained but marked as low-confidence and uploaded to the backend.

[0112] The third category is abnormal results: these are temperature values ​​that significantly exceed the reasonable range, or show significant abnormal jumps compared to historical periods, and other judgment items indicate that the result has a high degree of reliability. For this type of result, the control unit 8 marks the measuring point as a temperature abnormality measuring point and outputs an abnormality warning message.

[0113] The fourth category is invalid results: these are caused by excessive environmental interference, large posture deviations, incomplete lid opening, or severe instability of the lid opening state within the temperature measurement window, resulting in the temperature measurement conditions not meeting the minimum valid sampling requirements. For this type of result, the control unit 8 does not directly output the temperature value, but instead triggers resampling, waits for the next sampling window, or adds the measurement point to the subsequent priority retest queue.

[0114] Finally, when the control unit 8 identifies a measurement point as a low-confidence result, abnormal result, or invalid result, it can perform one or more of the following operations according to the strategy: immediately perform a supplementary measurement in the current cycle to increase the measurement priority of the measurement point in the next cycle; output abnormal warning information; upload the abnormality mark along with the temperature measurement result; add the measurement point to the key review list; and trigger a higher level of attention prompt when there are abnormalities in multiple consecutive cycles. For example, when a measurement point shows an abnormal jump for the first time in the current cycle, but is accompanied by strong environmental interference, the control unit 8 preferably executes the combined strategy of "supplementary measurement in the current cycle + uploading low-confidence mark". Another example is when a measurement point shows a high-confidence abnormal temperature rise for two or three consecutive cycles, the control unit 8 not only uploads the abnormal temperature result but also simultaneously outputs trend warning information to prompt the background system to pay attention to the continuous changes in the thermal state of the fire channel. Yet another example is when a measurement point's result is invalid in the current cycle due to unstable opening of the cover or exceeding the posture limit, the control unit 8 can automatically add it to the priority measurement list for the next cycle, so that the measurement point will be prioritized for re-measurement in subsequent inspections.

[0115] Therefore, in step S6, the control unit 8 obtains continuous multi-frame infrared temperature measurement data of the same measurement point during the sampling stage, and after completing environmental compensation and temperature correction in step S7, obtains the corresponding multi-frame compensated temperature sequence. The control unit 8 preferably does not directly use a single frame temperature measurement value as the result, but rather performs stability analysis and validity judgment based on the multi-frame compensated temperature sequence, thereby reducing the risk of misjudgment caused by instantaneous interference. Therefore, this invention does not directly output a single value after obtaining the compensated temperature, but further introduces a temperature measurement validity judgment, anomaly identification, and classification and handling mechanism, realizing an improvement from "data acquisition" to "judging credibility, identifying anomalies, triggering verification, and assisting decision-making." In particular, this step, in conjunction with the preceding lid opening control, attitude detection, environmental compensation, and temperature correction processes, ensures that anomaly identification is not based solely on the temperature value itself, but rather comprehensively combines the stability of the temperature measurement window, field of view exposure conditions, degree of environmental disturbance, and historical change trends for judgment, thereby improving the reliability and engineering application value of the coke oven flue thermal state identification results.

[0116] Step S9: Data upload and task recording.

[0117] In this embodiment, after obtaining the final valid temperature result, the control unit 8 activates the wireless communication module to send the temperature measurement result, timestamp, device status, environmental parameters, anomaly markers, and task execution status to an external host computer, control center, or management platform. The uploaded data preferably includes: the measurement point number and the current temperature measurement result. Original temperature measurement value Environmental parameters , , The system displays the following information: open cover status and resistance status; presence of any abnormal retesting or jamming; and the execution time of this task. In the event of poor communication conditions or a temporary signal interruption, the control unit 8 can first store the data in a local buffer and then retransmit it after the wireless link is restored, ensuring data integrity.

[0118] Step S10: The furnace cover 13 is reset and the system returns to standby mode.

[0119] In this embodiment, after completing temperature measurement and data upload, the control unit 8 sends a reverse drive command to the servo motor 10. The servo motor 10 drives the furnace cover 13 to move in the opposite direction via the linkage mechanism 11, restoring the furnace cover 13 from the open state to the closed state. During the reset process, the control unit 8 can also collect the status signal output by the resistance detection unit to determine whether the furnace cover 13 has been successfully positioned, whether there is any reset obstruction, and whether it has returned to the preset closed state. If the reset fails, the system can execute a re-reset or abnormal reporting process; if the reset is successful, the current temperature measurement task ends, the control unit 8 shuts down the high-power module, and the wireless communication module, temperature measurement component, and some sensing modules enter a sleep or low-power state. The system returns to standby mode, waiting for the next task to be triggered.

[0120] Compared with existing coke oven linear temperature measuring devices, track-type automatic temperature measuring devices, and systems that only have automatic lid opening or infrared temperature measurement functions, this invention optimizes the overall machine structure layout, lid opening execution method, status feedback mechanism, temperature sensing method, and control process. This enables the device to not only automatically open the coke oven inspection hole and perform infrared temperature measurement, but also achieve more reliable adaptive lid opening, more accurate temperature acquisition, and stronger closed-loop data processing and control in environments with high temperature, strong heat radiation, high dust, and large fluctuations in operating conditions at the coke oven top.

[0121] Its technological advantages are as follows: 1. The layered insulation structure improves long-term operational reliability under high-temperature environments. This invention adopts a layered arrangement of base 5, support studs 12, insulation plate 4, and upper functional modules. By forming an air insulation cavity between base 5 and insulation plate 4, the installation heating layer directly opposite the high-temperature area of ​​the coke oven is spatially separated from the upper control, power supply, sensing, and drive layer. This structural change makes it difficult for high-temperature heat to be directly transferred to the upper electronic and drive components, thereby reducing the thermal load on the servo motor 10, electronic control board, battery, and communication module. Compared with the existing technology that centrally arranges drive, temperature measurement, and control components, or uses only a single shell for insulation, this invention, through the structural division of "high-temperature layer—insulation layer—functional layer," transforms high-temperature adaptability from simple material temperature resistance to structural insulation protection. Therefore, it can effectively reduce the impact of heat conduction, heat radiation, and local heat accumulation on the performance of core components, and improve the stability and service life of the device under continuous operation conditions at the top of the coke oven.

[0122] 2. The transmission layout with the drive source positioned above and the actuator positioned below reduces the risk of heat failure in the opening mechanism: This invention places the servo motor 10 in a relatively low-temperature region above the heat insulation plate 4, and transmits power to the lower action component near the furnace cover 13 via the linkage mechanism 11, thus forming a "top-driven, bottom-actuated" transmission chain structure. This structural change keeps the critical drive source away from the high-temperature zone of the coke oven, while placing the action component, which only bears the action output, near the furnace cover 13. Compared with the prior art where cylinders, push rods, or other drive components are directly near the high-temperature zone, this invention can significantly reduce problems such as torque attenuation, sluggish action, seal aging, and shortened lifespan caused by high temperatures in the drive components. Simultaneously, since the drive source is not directly exposed to the high heat radiation environment, the overall maintenance frequency and failure rate are correspondingly reduced, which is beneficial for achieving long-term continuous operation.

[0123] 3. The introduction of a resistance detection and adaptive adjustment mechanism improves the adaptability and reliability of the automatic lid opening process: Most existing automatic lid opening structures for coke ovens execute actions according to a preset trajectory and fixed driving force. When the lid 13 experiences ash accumulation, coking, thermal deformation, positional deviation, or fluctuations in opening resistance, it is prone to jamming, excessive impact, or lid opening failure. This invention adds a resistance detection unit to the lid opening execution chain, using the output state of the servo motor 10, load changes, displacement changes, or angle changes as feedback information for the opening state of the lid 13. The control unit 8 then identifies and judges this feedback information in real time. This change in structure and control method transforms the lid opening process from an "open-loop fixed action" to "closed-loop adaptive control." When abnormal resistance is detected, the system can automatically perform actions such as deceleration, torque increase, pause, retraction followed by secondary opening, or abnormal shutdown based on the actual state, instead of continuously forcibly driving in a fixed manner. Therefore, the present invention can significantly improve the adaptability to complex working conditions such as individual differences in the 13 furnace covers of coke ovens, ash accumulation, and thermal expansion deviation, reduce mechanical impact and structural damage, and improve the success rate of opening the cover and the consistency of the operation.

[0124] 4. The coordinated arrangement of the lid-opening and temperature-measuring actions reduces field-of-view interference and improves the effectiveness of temperature measurement: This invention spatially coordinates the infrared temperature-measuring component 9 with the lid-opening actuator, positioning the infrared temperature-measuring component 9 above or to the side of the lid-opening area. Temperature measurement is initiated only after the furnace lid 13 is fully opened, thus avoiding temperature acquisition when the furnace lid 13 is not fully open, the lid-opening actuator is still in an obstructed position, or the furnace lid 13 is in an unstable posture. Compared to existing technologies where the lid-opening mechanism and temperature probe are simply combined without proper timing coordination, this invention, through both structural arrangement and control timing constraints, ensures a more stable and unobstructed temperature measurement field of view during operation. This change reduces the impact of furnace lid 13 obstruction, mechanism swaying, and residual interference on the infrared sampling results, thereby improving the effectiveness and repeatability of the temperature measurement process.

[0125] 5. The combined design of the infrared temperature measurement component 9 and the environmental sensing module improves temperature measurement accuracy under complex operating conditions: While existing automatic temperature measurement technologies for coke ovens largely employ the principle of infrared non-contact temperature measurement, most solutions only focus on the installation, protection, or aiming of the infrared probe itself, lacking the linkage sensing and dynamic compensation for disturbances such as ambient temperature, background radiation, and smoke obstruction. This invention further incorporates an environmental sensing module in addition to the infrared temperature measurement component 9. This module collects ambient temperature, background radiation intensity, smoke conditions, and necessary attitude information, using these as input parameters for the control unit 8 to perform temperature compensation and validity judgment. This structural and functional addition ensures that the temperature measurement result is no longer a single infrared sensor output value, but a comprehensive result corrected for environmental disturbances. Compared to existing solutions that rely solely on hardware selection or simple filtering to improve accuracy, this invention more effectively reduces measurement deviations caused by background thermal radiation, flame disturbances, and smoke fluctuations at the coke oven site, making the straight-line temperature measurement result closer to the actual operating temperature and improving the accuracy and stability of temperature measurement in complex environments.

[0126] 6. The introduction of temperature measurement validity judgment and anomaly identification logic improves the reliability of output data: Most existing automatic temperature measurement devices directly upload or display temperature data after collection, lacking a mechanism to determine the reliability of measurement results. This invention sets up temperature measurement validity judgment logic in the control unit 8, which not only filters and compensates the infrared temperature measurement data, but also combines the opening status of the furnace lid 13, the degree of environmental disturbance, continuous sampling fluctuations, and deviations from historical adjacent temperature changes to comprehensively judge whether the measurement result is valid. This change upgrades the system's data processing capability from "collection and transmission" to "collection, correction, judgment, and output." Through this mechanism, unreliable data caused by improper lid opening, sudden increase in smoke and dust, excessive temperature fluctuations, or short-term anomalies can be identified, and further processing such as supplementary measurement, anomaly marking, priority retesting, or reporting alarms can be performed, thereby improving the reliability and usability of the final uploaded data, and facilitating subsequent fire adjustment analysis, trend judgment, and anomaly early warning.

[0127] 7. A unified control unit 8 connects the execution chain, sensing chain, and communication chain, achieving true integrated closed-loop operation: This invention integrates the servo motor 10, resistance detection unit, infrared temperature measurement component 9, environmental sensing module, battery pack (7 components), and wireless communication module into the control unit 8. The control unit 8 centrally executes task triggering, action control, status recognition, temperature compensation, result judgment, and data uploading. This forms a complete "execution-feedback-processing-uploading-reset" closed-loop working system. Compared with the existing technology where the opening device, temperature measurement unit, and communication module are mostly functionally superimposed or loosely combined, this invention achieves collaborative control between multiple modules through a unified control architecture. This not only improves the continuity of the action flow and the system integration, but also helps reduce delays, error accumulation, and interface mismatches between different subsystems, thereby improving overall operating efficiency and reliability at the system level.

[0128] 8. The wireless communication module works in conjunction with the local control logic, enhancing the flexibility and continuous operation capability of field applications: This invention incorporates a wireless communication module and an external antenna 3, linked with the control unit 8. Data reporting is only performed after effective temperature measurement and status judgment. If necessary, local caching and recovery followed by retransmission can be performed in cases of communication instability. This structure and control method avoids the high power consumption and invalid transmission problems caused by continuous online communication. Compared to existing systems that rely solely on continuous networking or simple reporting, this invention is more suitable for industrial sites with complex coke oven roof metal structures, significant interference, and inconvenient frequent maintenance. On the one hand, it improves the integrity and reliability of data transmission; on the other hand, it helps reduce overall energy consumption and enhances the system's long-term deployment and independent operation capabilities.

[0129] 9. The composite protective structure of the outer casing and rain cover 1 improves the environmental adaptability of electronic components: This invention sets a plastic outer casing 6 on the outside of the control unit 8, battery pack 7, and communication module, and sets a rain cover 1 on top of it to form a composite protective structure combining the inner and outer layers. The plastic outer casing 6 is mainly used for the installation and positioning of internal components, insulation protection, and dust and water protection, while the rain cover 1 is mainly used to shield the top from dust, rainwater, and direct intrusion of high-temperature flue gas. Compared with a single shell protection method, this structural change can more effectively protect internal electronic components, reduce the adverse effects of dust adhesion, moisture intrusion, and top thermal shock on the control system and power supply system, thereby improving the adaptability of the whole machine in the complex outdoor and high-temperature mixed environment of the coke oven plant area.

[0130] 10. Upgrading from a simple automatic temperature measuring device to an intelligent measurement system with adaptive lid opening, temperature compensation, and anomaly handling capabilities: In general, this invention is not a simple assembly of existing automatic lid opening or automatic temperature measuring devices. Instead, through a systematic design of heat-insulated layout, layered installation, closed-loop execution feedback, environmental perception compensation, and unified control logic, it elevates the device from simply "automatically opening the lid and measuring temperature" to an intelligent measurement system "capable of adaptively completing lid opening, temperature measurement, correction, judgment, and data upload based on the on-site conditions." Therefore, compared with existing technologies, this invention has at least the following comprehensive effects: improved long-term operational stability of the coke oven under high-temperature environments; improved reliability of the automatic opening and resetting process of the furnace lid 13; improved accuracy, repeatability, and reliability of infrared temperature measurement data; enhanced adaptive handling capabilities under abnormal operating conditions; and a more stable and reliable data foundation for continuous monitoring, trend analysis, and intelligent firing adjustment of the coke oven's linear temperature.

[0131] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0132] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for an automatic temperature measurement system for a coke oven, characterized in that: The following steps are included: Step S1: Respond to the temperature measurement task command sent by the external system, or the preset temperature measurement time interval trigger command, wake up the coke oven straight-line temperature automatic measurement system and start the temperature measurement task; Step S2: Collect environmental parameters and use the environmental parameters to determine whether the current working condition meets the temperature measurement conditions based on the set threshold. When the temperature measurement conditions are met, drive the furnace cover (13) to open. Step S3: Collect the status quantity output by the resistance detection unit, calculate the opening resistance characteristic parameters, and characterize the current opening resistance state of the furnace cover (13); Step S4: When the resistance state is determined to be abnormal, the current abnormal state is classified and identified, and adaptive adjustment is initiated based on the degree of abnormality, duration of abnormality and current position. Step S5: After the adaptive adjustment ends and it is determined that the furnace cover (13) has reached the preset opening position, the infrared temperature measurement component (9) is triggered; Step S6: The infrared temperature measurement component (9) performs non-contact infrared detection on the target area inside the coke oven along the preset field of view, collects the original infrared temperature value and filters it, and outputs the pre-processed infrared temperature value. Step S7: Perform correction compensation on the infrared temperature measurement value with first and second corrections to obtain the corrected true straight-line temperature value; Step S8: Perform a multi-condition joint judgment on the validity of the temperature measurement result for each measuring point, classify and process the temperature measurement results, and obtain the final valid temperature value based on the judgment results.

2. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 1, characterized in that: The furnace cover (13) of the coke oven linear temperature automatic measurement system is set on the top of the coke oven to seal the internal space of the coke oven; a control unit (8), a cover opening actuator and an infrared temperature measuring component (9) are set above the furnace cover (13) of the coke oven linear temperature automatic measurement system. The cover opening actuator and the infrared temperature measuring component (9) are arranged in a staggered manner on the horizontal plane, and the cover opening actuator and the infrared temperature measuring component (9) are electrically connected to the control unit (8); after the control unit (8) controls the cover opening actuator to open the furnace cover (13), the infrared temperature measuring component (9) measures the internal temperature of the coke oven and transmits the data to the external system.

3. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 2, characterized in that: The environmental parameters in step S2 include at least one or more of the following: ambient temperature value, background thermal radiation intensity, degree of smoke and dust interference, system attitude status, internal working temperature of the outer shell in the system, and safety status information around the furnace top in the system.

4. The control method of the automatic temperature measurement system for coke oven linear motion according to claim 3, characterized in that: In step S3, the opening resistance characteristic parameters are comprehensively characterized based on the output current, angular velocity and displacement change of the servo motor (10) in the system.

5. The control method of the automatic temperature measurement system for coke oven linear motion according to claim 4, characterized in that: In step S3, the current opening resistance status of the furnace cover (13) includes: normal opening resistance status and abnormal opening resistance status. The determination of abnormal opening resistance status of the furnace cover (13) includes: When the control unit (8) detects that the load signal in the system is higher than the set threshold, it determines that the opening resistance of the furnace cover (13) is abnormal. When the control unit (8) detects that the displacement of the furnace cover (13) output by the servo motor (10) is inconsistent with the actual displacement of the furnace cover (13) within a set time, it determines that the opening resistance of the furnace cover (13) is abnormal.

6. The control method of the automatic temperature measurement system for a coke oven in linear motion according to claim 5, characterized in that: In step S4, the control unit (8) performs graded identification of the current abnormal state, including: the control unit (8) performs graded identification of the current abnormal state based on the current, torque, angle, displacement, action duration and their combination information output by the resistance detection unit in the system. The identification results include: mild abnormal state, moderate abnormal state and severe abnormal state.

7. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 6, characterized in that: Step S4, which involves entering adaptive adjustment, includes: When the control unit (8) detects that the furnace cover (13) is in a slightly abnormal state, it performs adaptive adjustment of the deceleration control; When the control unit (8) detects that the furnace cover (13) is in a moderate abnormal state, it performs adaptive adjustment to increase the driving force or driving torque in stages; When the control unit (8) detects that the furnace cover (13) is close to the preset limit position of the mechanism under abnormal conditions, or when abnormal displacement, abnormal angle and high load occur at the same time, it performs adaptive adjustment of the maximum action amplitude. When the control unit (8) determines that the furnace cover (13) is in a severely abnormal state, it outputs an abnormal alarm and terminates the task.

8. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 7, characterized in that: The correction compensation in step S7, including the first and second corrections, includes: The infrared thermometry value is corrected once based on the ambient temperature parameter, background radiation parameter and smoke interference parameter to obtain the straight-line temperature value after correction and compensation. Read the current attitude deviation parameters and the lid opening position parameters; Calculate the attitude correction term and the lid opening position correction term separately; When both posture deviation and insufficient opening are detected and exceed a preset threshold, a joint correction term is calculated; the true straight-line temperature value after joint correction is output. The attitude correction terms include: expressed using attitude correction coefficients and attitude deviation parameters; and expressed using pitch deviation, yaw deviation, and correction coefficients in the corresponding directions. The correction term for the lid opening position includes: representing it using the difference between the lid opening correction coefficient and the lid opening position parameter and the standard opening degree; The joint correction term includes: representing the difference between the joint correction coefficient, the attitude deviation parameter, and the standard opening degree and the opening position parameter.

9. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 8, characterized in that: Step S7 also includes: the control unit (8) judges the reliability of the temperature measurement result by combining the attitude deviation parameter and the opening position parameter. When the attitude deviation parameter exceeds the allowable deviation threshold or the attitude deviation parameter is lower than the minimum effective opening threshold, the corrected temperature is not used as the final result. The corrected temperature data is marked as low reliability data, triggering resampling or sending it to the subsequent temperature measurement validity judgment for screening.

10. The control method of the automatic temperature measurement system for a coke oven linear motion according to claim 9, characterized in that: Step S8 involves classifying and processing the temperature measurement results, including: Temperature measurement results are categorized into valid results, low-reliability results, abnormal results, and invalid results. When the control unit (8) identifies a measurement point as a low-confidence result, an abnormal result, or an invalid result, it performs one or more of the following operations: Conduct supplementary testing immediately within the current cycle; Output abnormal warning information; Upload the anomaly marker along with the temperature measurement results; Add this measurement point to the list of key points for review; When multiple consecutive cycles of anomalies occur, a higher level of attention alert is triggered.

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