Smart bimetallic thermometer with angle adjustable frame
By adjusting the frame orientation and data filtering calibration of the bimetallic thermometer, the accuracy and reliability issues of the thermometer under different orientations were resolved, thus achieving reliable and accurate temperature measurement data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JINGPU MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2023-05-08
- Publication Date
- 2026-04-24
AI Technical Summary
Existing bimetallic thermometers cannot function properly in different orientation states, resulting in reduced accuracy and reliability of temperature detection.
Through the intelligent connection of the angle-adjustable frame, the connection information between the movement and the temperature sensing component is adjusted according to the movement's position information. The frame orientation of the bimetallic thermometer is adjusted so that the movement and the temperature sensing component meet the preset relative position conditions. Temperature measurement data generated when the pointer deviates too much during swinging motion is eliminated, and the data is calibrated and stored according to the working environment information.
To ensure the reliability and accuracy of temperature measurement data, eliminate pointer offset caused by improper frame placement, and improve the reliability and accuracy of temperature detection.
Smart Images

Figure CN116499597B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of bimetallic thermometers, and particularly to an intelligent bimetallic thermometer with an adjustable angle frame. Background Technology
[0002] A bimetallic thermometer mainly consists of two functional components: a sensing element and a mechanism. The sensing element is composed of two metals with different coefficients of linear expansion. When the external temperature changes, the two metals expand differently, causing the sensing element to twist and transmitting the torsional force to the mechanism. The mechanism mainly includes a pointer and a temperature dial. The pointer is connected to the sensing element via an elastic component. The torsional force generated by the sensing element is then transmitted to the pointer, causing it to rotate and indicate the corresponding temperature on the dial. The different functional components within a bimetallic thermometer are mechanically connected, making it sensitive to the position of these components. When the mechanism is tilted or inverted, external forces act on the connection to the sensing element, preventing the torsional force from being properly transmitted to the pointer, resulting in incorrect temperature readings. Current technology does not provide corresponding corrections for bimetallic thermometers in different positions, reducing the accuracy and reliability of temperature detection. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides an intelligent bimetallic thermometer with an adjustable frame. Based on the orientation information of the bimetallic thermometer's mechanism, it obtains the connection information between the mechanism and the temperature-sensing component, thereby determining whether the bimetallic thermometer is in normal working condition. It identifies the mechanical connection status between different components within the bimetallic thermometer, providing a reliable basis for subsequent adjustments. The frame orientation of the bimetallic thermometer is adjusted to ensure that the mechanism and temperature-sensing component meet preset relative orientation conditions, guaranteeing that the temperature-sensing component can properly transmit torsional forces to the mechanism. Furthermore, it filters the temperature measurement data obtained from the bimetallic thermometer, eliminating data generated when the pointer's swing deviation is too large, ensuring the reliability of the temperature measurement data. Finally, based on the bimetallic thermometer's operating environment information, the filtered temperature measurement data is calibrated and stored, ensuring the accuracy and traceability of the temperature measurement data.
[0004] This invention provides an intelligent bimetallic thermometer with an adjustable angle frame, comprising a bimetallic thermometer body and an adjustable angle frame.
[0005] The bimetallic thermometer body includes:
[0006] The connection function information determination module is used to collect the movement position information of the bimetallic thermometer and obtain the connection function information between the movement and the temperature sensing component based on the movement position information.
[0007] The working status identification module is used to determine whether the bimetallic thermometer is in normal working status based on the connection function information.
[0008] The temperature measurement data filtering module is used to acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and to filter out effective temperature measurement data from the several temperature measurement data according to the action information of the mechanism.
[0009] The temperature measurement data correction and storage module is used to correct the valid temperature measurement data according to the working environment information of the bimetallic thermometer, and store the corrected valid temperature measurement data.
[0010] The angle-adjustable frame includes:
[0011] The frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet the preset relative posture conditions.
[0012] Furthermore, the connection information determination module is used to collect the movement pose information of the bimetallic thermometer, and based on the movement pose information, obtain the connection information between the movement and the temperature sensing component, including:
[0013] The azimuth angle information of the bimetallic thermometer's movement is collected. Based on the azimuth angle information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component, the torque action information of the elastic component is obtained.
[0014] The operating status identification module is used to determine whether the bimetallic thermometer is in normal operating condition based on the connection function information, including:
[0015] Based on the torque information, it is determined whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
[0016] Furthermore, the frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet preset relative posture conditions, including:
[0017] When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined according to the mechanism's position information; then, according to the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change the placement angle synchronously.
[0018] During the process of the movement changing its orientation angle, it is determined whether the movement and the temperature sensing component are in a coaxial state. If so, it indicates that the movement and the temperature sensing component meet the preset relative orientation conditions, and the adjustment of the orientation angle of the frame of the bimetallic thermometer is stopped.
[0019] The temperature measurement data filtering module is used to acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and to filter valid temperature measurement data from the several temperature measurement data based on the mechanism's operation information, including:
[0020] Acquire several temperature measurement data of the mechanism of the bimetallic thermometer when it is in normal working condition, and determine whether the corresponding temperature measurement data is valid based on the pointer swing action information of the mechanism during the detection of each temperature measurement data; wherein, the pointer swing action information includes the pointer swing action drift amplitude.
[0021] Furthermore, the temperature measurement data correction and storage module is used to correct the valid temperature measurement data according to the working environment information of the bimetallic thermometer, and store the corrected valid temperature measurement data, including:
[0022] Based on the external vibration information of the working environment of the bimetallic thermometer, a correction mode for vibration correction of the effective temperature measurement data is determined, thereby correcting the effective temperature measurement data.
[0023] The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
[0024] The present invention also provides a temperature control method for an intelligent bimetallic thermometer with an adjustable angle frame, comprising the following steps:
[0025] Step S1: Collect the movement position information of the bimetallic thermometer, and obtain the connection information between the movement and the temperature sensing component based on the movement position information; determine whether the bimetallic thermometer is in normal working condition based on the connection information.
[0026] Step S2: When the bimetallic thermometer is not in normal working condition, adjust the placement posture of the angle-adjustable frame so that the mechanism and the temperature sensing component meet the preset relative posture conditions; acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and filter out effective temperature measurement data from the several temperature measurement data according to the action information of the mechanism.
[0027] Step S3: Based on the working environment information of the bimetallic thermometer, the effective temperature measurement data is corrected, and the corrected effective temperature measurement data is stored.
[0028] Further, in step S1, the movement position information of the bimetallic thermometer is acquired, and based on the movement position information, the connection information between the movement and the temperature sensing component is obtained; based on the connection information, it is determined whether the bimetallic thermometer is in normal working condition, including:
[0029] The azimuth angle information of the bimetallic thermometer's movement is collected. Based on the azimuth angle information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component, the torque action information of the elastic component is obtained.
[0030] Based on the torque information, it is determined whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
[0031] Furthermore, in step S1, the movement pose information of the bimetallic thermometer is acquired through image capture and analysis, including:
[0032] The process involves acquiring an image of the bimetallic thermometer's movement, identifying the boundary trajectory of the movement, cropping and processing the image to obtain a display image that matches the subsequent display page area, and analyzing the display image to obtain the movement pose information of the bimetallic thermometer.
[0033] Step S101: Using the following formula (1), obtain the vertex coordinates of the circumscribed rectangle based on the boundary trajectory of the movement.
[0034]
[0035] In the above formula (1), (x1,y1), (x2,y2), (x3,y3), (x4,y4) represent the coordinates of the four vertices of the circumscribed rectangle of the boundary trajectory of the movement; [X(a),Y(a)] represents the a-th coordinate of the boundary trajectory of the movement. This means substituting the values of 'a' from 1 to 'n' into the parentheses to obtain the maximum value within the parentheses; This means substituting the values of 'a' from 1 to 'n' into the parentheses to obtain the minimum value within the parentheses;
[0036] Step S102: Using the formula (2) below, determine the scaling ratio of the circumscribed rectangle based on the vertex coordinates of the circumscribed rectangle of the mechanism's boundary trajectory and the subsequent display page area.
[0037]
[0038] In the above formula (2), K represents the scaling ratio of the outer rectangle of the mechanism; P represents the length value of the subsequent display page area; L represents the width value of the subsequent display page area;
[0039] Step S103: Using the formula (3) below, determine the display contrast of the image inside the outer rectangle of the boundary trajectory according to the scaling ratio of the outer rectangle of the movement.
[0040] D = 2 × [1 - (P × L + 1)] K ×50% (3)
[0041] In the above formula (3), D represents the display contrast of the image inside the outer rectangle of the boundary trajectory of the movement, and the value range of the display contrast is 0 to 100%.
[0042] The image enclosed by the circumscribed rectangle of the boundary trajectory of the mechanism is cropped and then enlarged by a factor of K. At the same time, the display contrast of the image is adjusted to D to obtain the display image of the subsequent display page area. Then, image analysis is performed on the display image to obtain the mechanism pose information of the bimetallic thermometer.
[0043] Further, in step S2, when the bimetallic thermometer is not in normal working condition, the placement posture of the angle-adjustable frame is adjusted so that the mechanism and the temperature sensing component meet preset relative positional conditions; several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition are acquired, and effective temperature measurement data are obtained from the several temperature measurement data based on the movement information of the mechanism, including:
[0044] When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined according to the mechanism's position information; then, according to the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change the placement angle synchronously.
[0045] During the process of the movement changing its orientation angle, it is determined whether the movement and the temperature sensing component are in a coaxial state. If so, it indicates that the movement and the temperature sensing component meet the preset relative posture conditions, and the adjustment of the orientation angle of the adjustable frame is stopped.
[0046] Acquire several temperature measurement data of the mechanism of the bimetallic thermometer when it is in normal working condition, and determine whether the corresponding temperature measurement data is valid based on the pointer swing action information of the mechanism during the detection of each temperature measurement data; wherein, the pointer swing action information includes the pointer swing action drift amplitude.
[0047] Further, in step S3, the effective temperature measurement data is corrected based on the working environment information of the bimetallic thermometer, and the corrected effective temperature measurement data is stored, including:
[0048] Based on the external vibration information of the working environment of the bimetallic thermometer, a correction mode for vibration correction of the effective temperature measurement data is determined, thereby correcting the effective temperature measurement data.
[0049] The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
[0050] Compared to existing technologies, this intelligent bimetallic thermometer with an adjustable frame obtains connection information between the mechanism and the sensing component based on the bimetallic thermometer's internal posture information. This information is used to determine whether the bimetallic thermometer is in normal working condition, identify the mechanical connection status between different components within the bimetallic thermometer, and provide a reliable basis for subsequent adjustments. The frame's orientation is adjusted to ensure the mechanism and sensing component meet preset relative posture conditions, guaranteeing the sensing component can properly transmit torsional forces to the mechanism. Furthermore, the temperature data obtained from the bimetallic thermometer is filtered, eliminating data generated when the pointer's swing deflection is too large, ensuring the reliability of the temperature data. Finally, the filtered temperature data is calibrated and stored based on the bimetallic thermometer's operating environment information, ensuring the accuracy and traceability of the temperature data.
[0051] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.
[0052] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0054] Figure 1 This is a schematic diagram of the structure of the intelligent bimetallic thermometer with an adjustable angle frame provided by the present invention.
[0055] Figure 2This is a flowchart illustrating the temperature control method for the intelligent bimetallic thermometer with an adjustable angle frame provided by the present invention. Detailed Implementation
[0056] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0057] See Figure 1 This is a schematic diagram of the structure of an intelligent bimetallic thermometer with an adjustable angle frame provided in an embodiment of the present invention. The intelligent bimetallic thermometer with an adjustable angle frame includes a bimetallic thermometer body and an adjustable angle frame.
[0058] The bimetallic thermometer body includes:
[0059] The connection function information determination module is used to collect the movement position information of the bimetallic thermometer and obtain the connection function information between the movement and the temperature sensing component based on the movement position information.
[0060] The working status identification module is used to determine whether the bimetallic thermometer is in normal working condition based on the connection function information.
[0061] The temperature measurement data filtering module is used to acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and to filter out the effective temperature measurement data from the several temperature measurement data based on the action information of the mechanism.
[0062] The temperature measurement data calibration and storage module is used to calibrate the valid temperature measurement data based on the working environment information of the bimetallic thermometer, and then store the calibrated valid temperature measurement data.
[0063] This adjustable frame includes:
[0064] The frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet the preset relative posture conditions.
[0065] The beneficial effects of the above technical solution are as follows: The intelligent bimetallic thermometer with an adjustable frame obtains the connection information between the mechanism and the temperature sensing component based on the mechanism's orientation information. This information is used to determine whether the bimetallic thermometer is in normal working condition, identify the mechanical connection status between different components within the bimetallic thermometer, and provide a reliable basis for subsequent adjustments. Adjusting the frame's orientation ensures that the mechanism and temperature sensing component meet preset relative orientation conditions, guaranteeing that the temperature sensing component can properly transmit torsional forces to the mechanism. Furthermore, it filters the temperature measurement data obtained from the bimetallic thermometer, eliminating data generated when the pointer's swing deflection is too large, ensuring the reliability of the temperature measurement data. Finally, based on the bimetallic thermometer's operating environment information, the filtered temperature measurement data is calibrated and stored, ensuring the accuracy and traceability of the temperature measurement data.
[0066] Preferably, the connection function information determination module is used to collect the movement position information of the bimetallic thermometer, and based on the movement position information, obtain the connection function information between the movement and the temperature sensing component, including:
[0067] Collect the azimuth angle information of the bimetallic thermometer's movement, and obtain the torque action information of the elastic component based on the azimuth angle information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component.
[0068] The operating status identification module is used to determine whether the bimetallic thermometer is in normal working condition based on the connection function information, including:
[0069] Based on the torque information, determine whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
[0070] The beneficial effects of the above technical solution are as follows: The internal mechanism of the bimetallic thermometer and the temperature-sensing component composed of bimetallic metal are connected by an elastic component. This elastic component transmits the torsional force generated by the temperature-sensing component during temperature measurement to the pointer of the mechanism, thereby causing the pointer to rotate. When the current azimuth angle of the mechanism is not within the normal range (e.g., the deflection angle of the mechanism relative to the temperature-sensing component is too large), the elastic component itself will twist (this twisting is not generated by the temperature-sensing component), thus interfering with the torsional force transmitted by the subsequent temperature-sensing component. The larger the deflection angle of the mechanism or the smaller the elastic coefficient of the elastic component, the more pronounced this interference. When the elastic component reaches its limit of torsion due to its own twisting, it will be unable to transmit the torsional force from the temperature-sensing component, causing the bimetallic thermometer to malfunction. Based on the azimuth information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing element, the torque information of the elastic component is obtained. Then, the torsional force generated by the movement's wobbling is compared with the maximum torsional force the elastic component can withstand to determine whether it is in a state of extreme torsion. This effectively identifies whether the bimetallic thermometer is functioning properly. Specifically, if the torsional force generated by the movement's wobbling is greater than or equal to the elastic component's maximum torsional force, it indicates that the elastic component is in a state of extreme torsion.
[0071] Preferably, the frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet preset relative positional conditions, including:
[0072] When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined based on the mechanism's position information; then, based on the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change its placement angle synchronously.
[0073] During the process of changing the orientation angle of the mechanism, it is determined whether the mechanism and the temperature sensing component are in a coaxial state. If so, it indicates that the mechanism and the temperature sensing component meet the preset relative orientation conditions, and the adjustment of the orientation angle of the frame of the bimetallic thermometer is stopped.
[0074] The temperature measurement data filtering module is used to acquire several temperature measurement data points of the bimetallic thermometer's movement under normal operating conditions. Based on the movement's operational information, it filters out valid temperature measurement data from these data points, including:
[0075] Acquire several temperature measurement data of the mechanism of the bimetallic thermometer under normal working conditions. Based on the pointer swing motion information of the mechanism during the detection of each temperature measurement data, determine whether the corresponding temperature measurement data belongs to valid temperature measurement data; wherein, the pointer swing motion information includes the pointer swing motion drift amplitude.
[0076] The beneficial effects of the above technical solution are as follows: In order to eliminate the extreme torsional state of the elastic component, it is necessary to adjust the position of the movement so that the movement will not wobble excessively relative to the temperature sensing component and cause torsion to the elastic component. The bimetallic thermometer has a frame for mounting the movement (i.e., mounting the pointer and temperature dial of the movement). This frame is a movable frame, which can be adjusted accordingly. At this time, according to the torsional angle required for the elastic component connected between the movement and the temperature sensing component to return to the allowable torsional state (i.e., the non-extreme torsional state), the placement angle of the bimetallic thermometer frame is adjusted so that the movement changes its placement angle synchronously with the frame. When the movement and the temperature sensing component are in a coaxial state (i.e., the pointer rotation axis of the movement is coaxial with the torsional axis corresponding to the torsional action of the temperature sensing component), the adjustment of the placement angle of the bimetallic thermometer frame is stopped. Next, acquire several temperature measurement data points of the bimetallic thermometer's movement under normal operating conditions. If, during the detection process, the pointer's swing amplitude exceeds a preset threshold, it indicates a significant detection deviation in the corresponding temperature measurement data. In this case, the corresponding temperature measurement data is not considered valid. Otherwise, the corresponding temperature measurement data is considered valid. Here, the swing amplitude refers to the swing amplitude drift value of the pointer on the temperature dial.
[0077] Preferably, the temperature measurement data calibration and storage module is used to calibrate the valid temperature measurement data according to the working environment information of the bimetallic thermometer, and store the calibrated valid temperature measurement data, including:
[0078] Based on the external vibration information of the working environment of the bimetallic thermometer, the correction mode for vibration correction of the effective temperature measurement data is determined, and the effective temperature measurement data is corrected accordingly.
[0079] The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
[0080] The beneficial effects of the above technical solution are as follows: When the working environment of a bimetallic thermometer is subject to significant external vibration, this vibration can interfere with the temperature detection process, resulting in a certain deviation in the corresponding effective temperature measurement data. The interference caused by external vibrations of different magnitudes and directions exhibits a certain variational pattern. In practical operation, each bimetallic thermometer has a predetermined vibration correction mode for interference from external vibrations. By selecting a matching correction mode based on the actual magnitude and direction of the external vibrations in the working environment of the bimetallic thermometer, the effective temperature measurement data can be corrected, eliminating data deviations caused by external vibrations. Furthermore, the corrected effective temperature measurement data is stored based on the measurement time, facilitating accurate retrieval of the effective temperature measurement data later.
[0081] See Figure 2 This is a schematic flowchart illustrating the temperature control method of an intelligent bimetallic thermometer with an adjustable angle frame provided in an embodiment of the present invention. The temperature control method of the intelligent bimetallic thermometer with an adjustable angle frame includes the following steps:
[0082] Step S1: Collect the movement position information of the bimetallic thermometer, and obtain the connection information between the movement and the temperature sensing component based on the movement position information; determine whether the bimetallic thermometer is in normal working condition based on the connection information.
[0083] Step S2: When the bimetallic thermometer is not in normal working condition, adjust the placement posture of the angle-adjustable frame so that the mechanism and the temperature sensing component meet the preset relative posture conditions; acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and select effective temperature measurement data from the several temperature measurement data according to the action information of the mechanism.
[0084] Step S3: Based on the working environment information of the bimetallic thermometer, the effective temperature measurement data is calibrated, and the calibrated effective temperature measurement data is stored.
[0085] The beneficial effects of the above technical solution are as follows: The temperature control method of the intelligent bimetallic thermometer with an adjustable frame obtains the connection information between the mechanism and the temperature sensing component based on the mechanism's posture information, thereby determining whether the bimetallic thermometer is in normal working condition, identifying the mechanical connection status between different components inside the bimetallic thermometer, and providing a reliable basis for subsequent adjustments to the bimetallic thermometer; adjusting the frame's orientation ensures that the mechanism and the temperature sensing component meet preset relative posture conditions, guaranteeing that the temperature sensing component can properly transmit torsional force to the mechanism; furthermore, it filters several temperature measurement data obtained from the bimetallic thermometer, eliminating temperature measurement data generated when the pointer's swing movement deviates too much, ensuring the reliability of the temperature measurement data; and it also corrects and stores the filtered temperature measurement data based on the bimetallic thermometer's working environment information, ensuring the accuracy and traceability of the temperature measurement data.
[0086] Preferably, in step S1, the movement position information of the bimetallic thermometer is acquired, and based on the movement position information, the connection information between the movement and the temperature sensing component is obtained; based on the connection information, it is determined whether the bimetallic thermometer is in normal working condition, including:
[0087] Collect the azimuth angle information of the bimetallic thermometer's movement, and obtain the torque action information of the elastic component based on the azimuth angle information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component.
[0088] Based on the torque information, determine whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
[0089] The beneficial effects of the above technical solution are as follows: The internal mechanism of the bimetallic thermometer and the temperature-sensing component composed of bimetallic metal are connected by an elastic component. This elastic component transmits the torsional force generated by the temperature-sensing component during temperature measurement to the pointer of the mechanism, thereby causing the pointer to rotate. When the current azimuth angle of the mechanism is not within the normal range (e.g., the deflection angle of the mechanism relative to the temperature-sensing component is too large), the elastic component itself will twist (this twisting is not generated by the temperature-sensing component), thus interfering with the torsional force transmitted by the subsequent temperature-sensing component. The larger the deflection angle of the mechanism or the smaller the elastic coefficient of the elastic component, the more pronounced this interference. When the elastic component reaches its limit of torsion due to its own twisting, it will be unable to transmit the torsional force from the temperature-sensing component, causing the bimetallic thermometer to malfunction. Based on the azimuth information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing element, the torque information of the elastic component is obtained. Then, the torsional force generated by the movement's wobbling is compared with the maximum torsional force the elastic component can withstand to determine whether it is in a state of extreme torsion. This effectively identifies whether the bimetallic thermometer is functioning properly. Specifically, if the torsional force generated by the movement's wobbling is greater than or equal to the elastic component's maximum torsional force, it indicates that the elastic component is in a state of extreme torsion.
[0090] Preferably, in step S1, the movement pose information of the bimetallic thermometer is acquired through image capture and analysis, including:
[0091] The process involves acquiring an image of the bimetallic thermometer's movement, identifying its boundary trajectory, cropping and processing the image to obtain a display image that matches the subsequent display page area, and analyzing this display image to obtain the bimetallic thermometer's movement pose information. The process is as follows:
[0092] Step S101: Using the formula (1) below, obtain the vertex coordinates of the circumscribed rectangle based on the boundary trajectory of the movement.
[0093]
[0094] In the above formula (1), (x1,y1), (x2,y2), (x3,y3), (x4,y4) represent the coordinates of the four vertices of the circumscribed rectangle of the boundary trajectory of the movement; [X(a),Y(a)] represents the a-th coordinate of the boundary trajectory of the movement. This means substituting the values of 'a' from 1 to 'n' into the parentheses to obtain the maximum value within the parentheses; This means substituting the values of 'a' from 1 to 'n' into the parentheses to obtain the minimum value within the parentheses;
[0095] Step S102: Using the formula (2) below, determine the scaling ratio of the circumscribed rectangle based on the vertex coordinates of the circumscribed rectangle of the movement's boundary trajectory and the subsequent display page area.
[0096]
[0097] In the above formula (2), K represents the scaling ratio of the outer rectangle of the mechanism; P represents the length value of the subsequent display page area; L represents the width value of the subsequent display page area;
[0098] Step S103: Using the formula (3) below, determine the display contrast of the image inside the outer rectangle of the boundary trajectory based on the scaling ratio of the outer rectangle of the movement.
[0099] D = 2 × [1 - (P × L + 1)] K ×50% (3)
[0100] In the above formula (3), D represents the display contrast of the image inside the outer rectangle of the boundary trajectory of the movement, and the value range of the display contrast is 0 to 100%.
[0101] The image enclosed by the circumscribed rectangle of the boundary trajectory of the mechanism is cropped, then enlarged by a factor of K, and the display contrast of the image is adjusted to D. This yields the display image of the subsequent display page area. Then, image analysis is performed on the display image to obtain the mechanism pose information of the bimetallic thermometer.
[0102] The beneficial effects of the above technical solution are as follows: Using the above formula (1), the vertex coordinates of the outer rectangle of the mechanism are obtained according to the boundary trajectory of the mechanism, so as to neatly standardize the boundary trajectory and facilitate the neatness and integrity of the subsequent display; then using the above formula (2), the scaling ratio of the outer rectangle is determined according to the vertex coordinates of the outer rectangle of the mechanism's boundary trajectory and the subsequent display page area, so as to automatically adjust according to the area to be displayed, reflecting the automatic adjustability of the system; finally using the above formula (3), the display contrast of the image inside the outer rectangle of the boundary trajectory is determined according to the scaling ratio of the outer rectangle of the mechanism, so as to increase the contrast of the image when the image is magnified, thereby enhancing the color distinction of the image and ensuring the reliability of the color distinction after magnification. At the same time, by displaying the pose image of the mechanism, it is convenient for the staff to make corresponding adjustments later.
[0103] Preferably, in step S2, when the bimetallic thermometer is not in normal working condition, the placement posture of the angle-adjustable frame is adjusted so that the mechanism and the temperature sensing component meet the preset relative posture conditions; several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition are acquired, and effective temperature measurement data are obtained from the several temperature measurement data based on the action information of the mechanism, including:
[0104] When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined based on the mechanism's position information; then, based on the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change its placement angle synchronously.
[0105] During the process of changing the placement angle of the movement, determine whether the movement and the temperature sensing component are in a coaxial state. If so, it indicates that the movement and the temperature sensing component meet the preset relative posture conditions, and stop adjusting the placement angle of the adjustable frame.
[0106] Acquire several temperature measurement data of the mechanism of the bimetallic thermometer under normal working conditions. Based on the pointer swing motion information of the mechanism during the detection of each temperature measurement data, determine whether the corresponding temperature measurement data belongs to valid temperature measurement data; wherein, the pointer swing motion information includes the pointer swing motion drift amplitude.
[0107] The beneficial effects of the above technical solution are as follows: In order to eliminate the extreme torsional state of the elastic component, it is necessary to adjust the position of the movement so that the movement will not wobble excessively relative to the temperature sensing component and cause torsion to the elastic component. The bimetallic thermometer has a frame for mounting the movement (i.e., mounting the pointer and temperature dial of the movement). This frame is a movable frame, which can be adjusted accordingly. At this time, according to the torsional angle required for the elastic component connected between the movement and the temperature sensing component to return to the allowable torsional state (i.e., the non-extreme torsional state), the placement angle of the bimetallic thermometer frame is adjusted so that the movement changes its placement angle synchronously with the frame. When the movement and the temperature sensing component are in a coaxial state (i.e., the pointer rotation axis of the movement is coaxial with the torsional axis corresponding to the torsional action of the temperature sensing component), the adjustment of the placement angle of the bimetallic thermometer frame is stopped. Next, acquire several temperature measurement data points of the bimetallic thermometer's movement under normal operating conditions. If, during the detection process, the pointer's swing amplitude exceeds a preset threshold, it indicates a significant detection deviation in the corresponding temperature measurement data. In this case, the corresponding temperature measurement data is not considered valid. Otherwise, the corresponding temperature measurement data is considered valid. Here, the swing amplitude refers to the swing amplitude drift value of the pointer on the temperature dial.
[0108] Preferably, in step S3, the effective temperature measurement data is calibrated based on the working environment information of the bimetallic thermometer, and the calibrated effective temperature measurement data is stored, including:
[0109] Based on the external vibration information of the working environment of the bimetallic thermometer, the correction mode for vibration correction of the effective temperature measurement data is determined, and the effective temperature measurement data is corrected accordingly.
[0110] The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
[0111] The beneficial effects of the above technical solution are as follows: When the working environment of a bimetallic thermometer is subject to significant external vibration, this vibration can interfere with the temperature detection process, resulting in a certain deviation in the corresponding effective temperature measurement data. The interference caused by external vibrations of different magnitudes and directions exhibits a certain variational pattern. In practical operation, each bimetallic thermometer has a predetermined vibration correction mode for interference from external vibrations. By selecting a matching correction mode based on the actual magnitude and direction of the external vibrations in the working environment of the bimetallic thermometer, the effective temperature measurement data can be corrected, eliminating data deviations caused by external vibrations. Furthermore, the corrected effective temperature measurement data is stored based on the measurement time, facilitating accurate retrieval of the effective temperature measurement data later.
[0112] As can be seen from the above embodiments, the intelligent bimetallic thermometer with an adjustable frame and the temperature measurement control method obtain the connection information between the mechanism and the temperature sensing component based on the mechanism's orientation information. This information is used to determine whether the bimetallic thermometer is in normal working condition, identify the mechanical connection status between different components inside the bimetallic thermometer, and provide a reliable basis for subsequent adjustments. The frame orientation of the bimetallic thermometer is adjusted to ensure that the mechanism and the temperature sensing component meet preset relative orientation conditions, guaranteeing that the temperature sensing component can transmit torsional force to the mechanism normally. Furthermore, several temperature measurement data obtained from the bimetallic thermometer are filtered, eliminating data generated when the pointer's swing movement deviates excessively, ensuring the reliability of the temperature measurement data. Finally, the filtered temperature measurement data is corrected and stored based on the working environment information of the bimetallic thermometer, ensuring the accuracy and traceability of the temperature measurement data.
[0113] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A smart bimetallic thermometer with an adjustable angle frame, comprising a bimetallic thermometer body and an adjustable angle frame, characterized in that: The bimetallic thermometer body includes: The connection function information determination module is used to collect the movement orientation information of the bimetallic thermometer and obtain the connection function information between the movement and the temperature sensing component based on the movement orientation information. This includes: collecting the movement orientation information of the bimetallic thermometer and obtaining the torque function information of the elastic component based on the movement orientation information and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component. The working status identification module is used to determine whether the bimetallic thermometer is in normal working status based on the connection function information. The temperature measurement data filtering module is used to acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and to filter out valid temperature measurement data from the several temperature measurement data according to the action information of the mechanism. The temperature measurement data correction and storage module is used to correct the effective temperature measurement data according to the working environment information of the bimetallic thermometer and store the corrected effective temperature measurement data. The angle-adjustable frame includes: The frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet the preset relative posture conditions.
2. The intelligent bimetallic thermometer with an adjustable angle frame as described in claim 1, characterized in that: The operating status identification module is used to determine whether the bimetallic thermometer is in normal operating condition based on the connection function information, including: Based on the torque information, it is determined whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
3. The intelligent bimetallic thermometer with an adjustable angle frame as described in claim 1, characterized in that: The frame placement adjustment module is used to adjust the placement posture of the angle-adjustable frame when the bimetallic thermometer is not in normal working condition, so that the movement and the temperature sensing component meet preset relative posture conditions, including: When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined according to the mechanism's position information; then, according to the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change the placement angle synchronously. During the process of the movement changing its orientation angle, it is determined whether the movement and the temperature sensing component are in a coaxial state. If so, it indicates that the movement and the temperature sensing component meet the preset relative posture conditions, and the adjustment of the orientation angle of the frame of the bimetallic thermometer is stopped. The temperature measurement data filtering module is used to acquire several temperature measurement data points of the mechanism when the bimetallic thermometer is in normal working condition, and to filter valid temperature measurement data from the several temperature measurement data points based on the movement information of the mechanism, including: Acquire several temperature measurement data of the mechanism of the bimetallic thermometer when it is in normal working condition, and determine whether the corresponding temperature measurement data is valid based on the pointer swing action information of the mechanism during the detection of each temperature measurement data; wherein, the pointer swing action information includes the pointer swing action drift amplitude.
4. The intelligent bimetallic thermometer with an adjustable angle frame as described in claim 1, characterized in that: The temperature measurement data correction and storage module is used to correct the valid temperature measurement data according to the working environment information of the bimetallic thermometer, and store the corrected valid temperature measurement data, including: Based on the external vibration information of the working environment of the bimetallic thermometer, a correction mode for vibration correction of the effective temperature measurement data is determined, thereby correcting the effective temperature measurement data. The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
5. The temperature measurement control method of the intelligent bimetallic thermometer with an adjustable angle frame as described in any one of claims 1-4, characterized in that, Includes the following steps: Step S1: Collect the movement position information of the bimetallic thermometer, and obtain the connection information between the movement and the temperature sensing component based on the movement position information; determine whether the bimetallic thermometer is in normal working condition based on the connection information. Step S2: When the bimetallic thermometer is not in normal working condition, adjust the placement posture of the angle-adjustable frame so that the mechanism and the temperature sensing component meet the preset relative posture conditions; acquire several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition, and filter out effective temperature measurement data from the several temperature measurement data according to the action information of the mechanism. Step S3: Based on the working environment information of the bimetallic thermometer, the effective temperature measurement data is corrected, and the corrected effective temperature measurement data is stored.
6. The temperature measurement and control method of the intelligent bimetallic thermometer with an adjustable angle frame as described in claim 5, characterized in that: In step S1, the orientation information of the bimetallic thermometer's mechanism is acquired, and the connection information between the mechanism and the temperature sensing component is obtained based on the orientation information of the mechanism. Based on the connection information, determining whether the bimetallic thermometer is in normal working condition includes: The azimuth angle information of the bimetallic thermometer's movement is collected. Based on the azimuth angle information of the movement and the mechanical parameters of the elastic component connecting the movement and the temperature sensing component, the torque action information of the elastic component is obtained. Based on the torque information, it is determined whether the elastic component is in a state of extreme torsion. If so, it is determined that the bimetallic thermometer is not in normal working condition; otherwise, it is determined that the bimetallic thermometer is in normal working condition.
7. The temperature measurement and control method of the intelligent bimetallic thermometer with an adjustable angle frame as described in claim 5, characterized in that: In step S1, the movement pose information of the bimetallic thermometer is acquired through image capture and analysis, including: The process involves acquiring an image of the bimetallic thermometer's movement, identifying the boundary trajectory of the movement, cropping and processing the image to obtain a display image that matches the subsequent display page area, and analyzing the display image to obtain the movement pose information of the bimetallic thermometer. Step S101: Using the following formula (1), obtain the vertex coordinates of the circumscribed rectangle of the movement based on its boundary trajectory. (1) In the above formula (1), The coordinates of the four vertices of the rectangle circumscribed by the boundary trajectory of the movement are represented. The first boundary trajectory representing the movement One coordinate; Indicates will The value ranges from 1 to Substitute the value into the parentheses to get the maximum value inside the parentheses; Indicates will The value ranges from 1 to Substitute the value into the parentheses to get the minimum value inside the parentheses; Step S102: Using the formula (2) below, determine the scaling ratio of the circumscribed rectangle based on the vertex coordinates of the circumscribed rectangle of the mechanism's boundary trajectory and the subsequent display page area. (2) In the above formula (2), This indicates the scaling ratio of the circumscribed rectangle of the movement; This indicates the length of the area to be displayed on the page. This indicates the width of the area to be displayed on the page. Step S103: Using the formula (3) below, determine the display contrast of the image inside the outer rectangle of the boundary trajectory according to the scaling ratio of the outer rectangle of the movement. (3) In the above formula (3), This refers to the display contrast of the image inside the rectangle circumscribed by the boundary trajectory of the movement, where the display contrast value ranges from 0 to 100%. The image enclosed by the rectangle circumscribed by the boundary trajectory of the movement is cropped and then enlarged. The image display contrast was adjusted to [number] times, and at the same time, [number] times. That is, the display image of the subsequent display page area is obtained, and then the display image is analyzed to obtain the movement position information of the bimetallic thermometer.
8. The temperature measurement and control method of the intelligent bimetallic thermometer with an adjustable angle frame as described in claim 5, characterized in that: In step S2, when the bimetallic thermometer is not in normal working condition, the placement of the angle-adjustable frame is adjusted so that the mechanism and the temperature sensing component meet preset relative positional conditions; several temperature measurement data of the mechanism when the bimetallic thermometer is in normal working condition are acquired, and effective temperature measurement data are obtained from the several temperature measurement data based on the movement information of the mechanism, including: When the bimetallic thermometer is not in normal working condition, the torsion angle required for the elastic component connecting the mechanism and the temperature sensing component to return to the allowable torsion state is determined according to the mechanism's position information; then, according to the torsion angle, the placement angle of the adjustable frame is adjusted so that the mechanism follows the adjustable frame to change the placement angle synchronously. During the process of the movement changing its orientation angle, it is determined whether the movement and the temperature sensing component are in a coaxial state. If so, it indicates that the movement and the temperature sensing component meet the preset relative posture conditions, and the adjustment of the orientation angle of the adjustable frame is stopped. Acquire several temperature measurement data of the mechanism of the bimetallic thermometer when it is in normal working condition, and determine whether the corresponding temperature measurement data is valid based on the pointer swing action information of the mechanism during the detection of each temperature measurement data; wherein, the pointer swing action information includes the pointer swing action drift amplitude.
9. The temperature measurement and control method of the intelligent bimetallic thermometer with an adjustable angle frame as described in claim 5, characterized in that: In step S3, the effective temperature measurement data is corrected based on the working environment information of the bimetallic thermometer, and the corrected effective temperature measurement data is stored, including: Based on the external vibration information of the working environment of the bimetallic thermometer, a correction mode for vibration correction of the effective temperature measurement data is determined, thereby correcting the effective temperature measurement data. The corrected valid temperature measurement data is stored based on the measurement time of the corrected valid temperature measurement data.
Citation Information
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