CN116337136A - Temperature and humidity meter calibration method and system - Google Patents
Temperature and humidity meter calibration method and system Download PDFInfo
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Abstract
The invention aims to provide a temperature and humidity meter calibration method and system for solving the problems that the calibration accuracy rate of the conventional temperature and humidity meter is low and the calibration efficiency is low.
Description
Technical Field
The invention relates to the technical field of temperature and humidity meter calibration, in particular to a temperature and humidity meter calibration method and system.
Background
Along with the increasing use demands of the temperature and humidity meters, the types of the temperature and humidity meters are more and more, and the calibration demands for different temperature and humidity meters are also increased day by day.
The temperature and humidity meter is calibrated manually by a conventional means, when the temperature and humidity meter is detected, the temperature and humidity meter to be detected is usually placed in a temperature and humidity box for detection, a worker observes and records the indicating value of the temperature and humidity meter to be detected outside the temperature and humidity box, the distance between the temperature and humidity meter to be detected and the indicating value of the temperature and humidity meter to be detected is far when the worker reads the indicating value by naked eyes, and the placing position of some temperature and humidity meters cannot enable the worker to read the indicating value of the temperature and humidity meter to be detected in the front direction, so that a large error exists in the reading of the detecting value of the temperature and humidity meter to be detected, and the calibration result is inaccurate; or open the humiture case and carry out the closely read value to the humiture table of waiting to examine, though can reduce the read value error through this mode, can lead to the fact the destruction to the detection environment in the humiture case, reduce the show value accuracy of waiting to examine the humiture table, can lead to the calibration inaccurate of waiting to examine the humiture table equally.
The problem that the calibration error is large and the efficiency is low exists through the existing manual operation, the actual calibration requirement cannot be met, and meanwhile, the high-efficiency requirement for calibrating a large number of temperature and humidity meters cannot be met.
Disclosure of Invention
The invention aims to provide a temperature and humidity meter calibration method and system, which solve the problems of low accuracy and low efficiency of the conventional temperature and humidity meter calibration.
The invention solves the technical problems as follows:
the temperature and humidity meter calibration method is used for detecting the temperature and humidity meter to be detected in the detection box and is characterized by comprising the following steps of:
s1, opening a detection box, and installing all the temperature and humidity meters to be detected on a hanger in the detection box;
s2, sequentially moving the image acquisition device to the position right in front of each temperature and humidity representation value area to be detected, simultaneously acquiring position coordinates when the image acquisition device is positioned right in front of each temperature and humidity representation value area to be detected, taking each position coordinate as an image acquisition coordinate and recording the image acquisition coordinates;
s3, closing the detection box, adjusting the temperature and humidity in the detection box according to a set temperature and humidity experimental value, and after the temperature and humidity in the detection box reach the set temperature and humidity experimental value, sequentially moving the image acquisition device to a corresponding position according to the recorded image acquisition coordinates, and carrying out image acquisition on a right-opposite temperature and humidity display value region to be detected after each movement of the image acquisition device to the corresponding position to obtain a display value image of each temperature and humidity display to be detected;
s4, matching and recording the current temperature and humidity experimental values, the display value image of each greenhouse to be detected and the corresponding image acquisition coordinates;
s5, updating the set temperature and humidity experimental values, and executing the steps S3-S5 until all the temperature and humidity experimental values are updated;
s6, obtaining a greenhouse table to be detected corresponding to each greenhouse representation value image to be detected according to the image acquisition coordinates, obtaining a detection value of the corresponding greenhouse table to be detected by reading each greenhouse representation value image to be detected, and obtaining a calibration result of the corresponding temperature and humidity table to be detected by comparing the detection value of the greenhouse table to be detected with the corresponding temperature and humidity test value.
Further defined, the step S1 specifically includes:
and opening the detection box, and mounting the temperature and humidity meters to be detected on the hanging frame at intervals, so that the display value area of each temperature and humidity meter to be detected is opposite to the image acquisition device.
Further defined, said step S2 comprises the steps of:
s21, establishing an image acquisition coordinate system, and enabling the image acquisition unit to move in the image acquisition coordinate system;
s22, driving a collection mechanism of the image collection device to move from a coordinate origin to the right front of any temperature and humidity representation value area to be detected of the hanger through a driving mechanism of the image collection device;
s23, recording coordinates of a current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to a current temperature and humidity meter to be detected;
s24, driving the acquisition mechanism to move to the right front of a next temperature and humidity meter to be detected through the driving mechanism, and recording the coordinates of the current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to the current temperature and humidity meter to be detected;
s25, repeatedly executing the step S24 until the recording of the corresponding image acquisition coordinates of all the temperature and humidity meters to be detected is completed.
Further defined, said step S3 comprises the steps of:
s31, closing the detection box, inputting the set temperature and humidity experimental value into a temperature and humidity adjusting mechanism in the detection box and a temperature and humidity detecting mechanism in the detection box, and enabling the temperature and humidity adjusting mechanism to adjust the temperature and humidity in the detection box according to the set temperature and humidity experimental value;
s32, detecting whether the temperature and the humidity in the detection box meet a set temperature and humidity experimental value through a temperature and humidity detection mechanism, if so, closing the temperature and humidity adjustment mechanism and executing a step S33; if not, keeping the temperature and humidity adjusting mechanism on, and executing step S32;
s33, the driving mechanism drives the acquisition mechanism to move to the position of any image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
s34, the driving mechanism drives the acquisition mechanism to move to the position of the next image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
and S35, repeatedly executing the step S34 until the acquisition mechanism finishes the movement of all image acquisition coordinate positions, and obtaining the indication value image of each greenhouse degree table to be detected.
Further defined, the step S6 specifically includes:
s61, reading all the temperature and humidity representation value images to be detected recorded under any temperature and humidity experiment value condition, and obtaining the detection value of each temperature and humidity meter to be detected when the current temperature and humidity experiment value is obtained;
s62, judging whether each temperature and humidity meter to be detected meets the measurement requirement or not according to comparison between the detection value of each temperature and humidity meter to be detected and the current temperature and humidity experimental value, if so, performing single calibration to be qualified, and if not, performing single calibration to be unqualified;
s63, recording a single calibration result of each temperature and humidity meter to be detected under the condition of the current temperature and humidity test value;
s64, selecting a new temperature and humidity experimental value, and executing steps S61-S63 until a calibration result of each temperature and humidity meter to be detected under all temperature and humidity experimental value conditions is obtained;
s65, when all single calibration results of the temperature and humidity meter to be detected are qualified, calibrating the temperature and humidity meter to be detected to be qualified, and if not, finally calibrating to be unqualified.
A hygrothermograph calibration system, comprising:
the detection unit is used for providing a constant temperature and humidity detection environment according to requirements, and a hanging frame for placing a temperature and humidity meter to be detected is arranged in the detection environment;
the coordinate acquisition unit is used for recording the coordinates of the corresponding positions of the image acquisition unit when the image acquisition unit moves to the position right in front of each temperature and humidity meter to be detected, obtaining the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, and uploading the obtained image acquisition coordinates to the data recording unit;
the execution driving unit is used for driving the image acquisition unit to move to a corresponding position according to the image acquisition coordinates;
the image acquisition unit is used for acquiring an image corresponding to the temperature and humidity display value area to be detected after the image acquisition unit is driven by the execution driving unit to move to the corresponding image acquisition coordinates, so as to obtain a display value image corresponding to the temperature and humidity display value area to be detected, and uploading the obtained display value image to the data recording unit;
the data recording unit is used for receiving the indication value image of each temperature and humidity meter to be detected and the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, matching the received indication value image with the corresponding image acquisition coordinates, and uploading the matched indication value image to the data processing unit;
the data processing unit is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected, determining the temperature and humidity meter to be detected corresponding to each detection value according to the image acquisition coordinates matched with the indication images, and obtaining a calibration result of each temperature and humidity meter to be detected according to the temperature and humidity experimental value of the current detection environment.
Further defined, the data processing unit comprises:
the image reading module is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected;
the to-be-detected greenhouse table matching module is used for determining a to-be-detected temperature and humidity table corresponding to each detection value according to the image acquisition coordinates matched with the indication value image;
the temperature and humidity test value matching module is used for determining a temperature and humidity test value of the detection environment where each temperature and humidity meter to be detected is located according to the temperature and humidity test value matched with the indication image;
and the calibration judgment module is used for comparing the temperature and humidity experimental value of the detection environment where each temperature and humidity meter to be detected is positioned with the detection value of the temperature and humidity meter to be detected in the corresponding detection environment to obtain the calibration result of each temperature and humidity meter to be detected.
The invention has the beneficial effects that:
1. the temperature and humidity meter to be calibrated is arranged on the hanger, the position of the indication value area of each temperature and humidity meter to be calibrated is recorded through the image acquisition device, then the detection box can be closed, the detection environment in the detection box is regulated according to the set temperature and humidity test value, the image acquisition device can be driven to sequentially move to the detection value of the indication value area right in front of each temperature and humidity meter to be calibrated according to the recorded image acquisition coordinates after the set temperature and humidity test value is met, finally the indication value of the temperature and humidity meter to be detected can be directly read according to the acquired indication value image, the reading value is accurate, and the calibration accuracy is improved; and can also realize detecting simultaneously a plurality of hygrothermographs to can change the detection environment through the humiture of adjusting in the detection case when not opening the detection case, realize treating the calibration of examining the hygrothermograph under different detection environments in succession, improve calibration efficiency, satisfy the in-service use demand.
2. According to the invention, the image acquisition coordinates of the image acquisition device are recorded, and then the image acquisition device is driven to move to the corresponding position for image acquisition according to the recorded image acquisition coordinates, so that the operation is simple and the efficiency is high, accurate indication images can be acquired, the stable detection environment can be ensured, the temperature and humidity meters with indication areas at different positions and the temperature and humidity meters with indication areas in different indication modes can be calibrated, the calibration of the temperature and humidity of different specifications at present can be satisfied, and the calibration application range is wider.
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Fig. 1 is a schematic flow chart of embodiment 1 of the present invention.
Detailed Description
Example 1
Referring to fig. 1, the embodiment provides a method for calibrating a hygrothermograph, which realizes efficient detection of the hygrothermograph on the basis of the existing detection box, and includes the following steps:
s1, opening a detection box, and installing all the temperature and humidity meters to be detected on a hanger in the detection box;
s2, sequentially moving the image acquisition device to the position right in front of each temperature and humidity representation value area to be detected, simultaneously acquiring position coordinates when the image acquisition device is positioned right in front of each temperature and humidity representation value area to be detected, taking each position coordinate as an image acquisition coordinate and recording the image acquisition coordinates;
s3, closing the detection box, adjusting the temperature and humidity in the detection box according to a set temperature and humidity experimental value, and after the temperature and humidity in the detection box reach the set temperature and humidity experimental value, sequentially moving the image acquisition device to a corresponding position according to the recorded image acquisition coordinates, and carrying out image acquisition on a right-opposite temperature and humidity display value region to be detected after each movement of the image acquisition device to the corresponding position to obtain a display value image of each temperature and humidity display to be detected;
s4, matching and recording the current temperature and humidity experimental values, the display value image of each greenhouse to be detected and the corresponding image acquisition coordinates;
s5, updating the set temperature and humidity experimental values, and executing the steps S3-S5 until all the temperature and humidity experimental values are updated;
s6, obtaining a greenhouse table to be detected corresponding to each greenhouse representation value image to be detected according to the image acquisition coordinates, obtaining a detection value of the corresponding greenhouse table to be detected by reading each greenhouse representation value image to be detected, and obtaining a calibration result of the corresponding temperature and humidity table to be detected by comparing the detection value of the greenhouse table to be detected with the corresponding temperature and humidity test value.
The step S1 specifically includes:
according to conventional operation, open the detection case, set gradually a plurality of hygrothermographs that need the calibration on the stores pylon, set up a plurality of hygrothermographs of waiting to examine promptly on the stores pylon, because the mode of setting up of different hygrothermographs is different, for example, the mode such as magnetic attraction, paste, hang and establish or stand sets up on the stores pylon, can set up couple, place parts such as platform and iron board on the stores pylon to realize that the hygrothermograph of different grade type sets up on the stores pylon.
In order to avoid the temperature and humidity meter to be detected from influencing the detection result of the adjacent temperature and humidity meter to be detected, a plurality of temperature and humidity meters to be detected are selected to be arranged at intervals, and meanwhile, in order to ensure the convenience and the rapidness of image acquisition, all the indication value areas of all the temperature and humidity meters to be detected are selected to face one side of the image acquisition device, so that the later image acquisition is facilitated, and the accuracy of indication value reading is ensured.
The size of the detection box can be selected according to actual requirements, and a temperature and humidity adjusting mechanism for adjusting the temperature and humidity, such as a heating device, a heat radiating device, a humidifier and a dehumidifier, is required to be installed in the detection box, so that the temperature and humidity in the detection box can be set according to calibration standard requirements, and the calibration requirements are met; meanwhile, in order to ensure stable temperature and humidity regulation in the detection box, a temperature and humidity detection mechanism is selected to be arranged in the detection box, for example, a temperature sensor and a humidity sensor which are high in precision and calibrated are also arranged in the detection box, and meanwhile, the temperature sensor is connected with a heating device and a heat dissipation device, and the humidity sensor is connected with a humidifier and a dehumidifier, so that the heating device can be started to raise the temperature in the detection box according to the detection result of the temperature sensor, or the heat dissipation device is started to lower the temperature in the detection box according to the detection result of the temperature sensor; similarly, the humidifier and the dehumidifier are selectively opened according to the detection result of the humidity sensor, and the heating device and the heat dissipation device are normally opened at the same time after calibration, and the humidifier and the dehumidifier are also opened at the same time after calibration, and can be closed at the same time after calibration.
The step S2 specifically includes:
the image acquisition device comprises a driving mechanism and an acquisition mechanism, wherein the driving mechanism is usually selected as a stepping motor, the acquisition mechanism is driven to move through a rack, the displacement of the acquisition mechanism can be accurately controlled, meanwhile, the coordinates of the acquisition mechanism can be determined according to the position of the current acquisition mechanism, different coordinate origins can be selected according to the needs, the acquisition mechanism can be arranged in a plane coordinate system or a space coordinate system according to the needs, when the acquisition mechanism is arranged in the space coordinate system, the acquisition mechanism can be driven to move in a plane parallel to a hanging frame through the driving mechanism, and the acquisition mechanism can also be close to or in principle to-be-detected temperature and humidity meter on the hanging frame, so that the optimal image acquisition position is selected, the plane coordinate is established as an example, the acquisition mechanism can be selected as an automatic focusing camera, the structure complexity is reduced, the operation difficulty and the calculation difficulty are reduced, and the working efficiency is improved.
S21, establishing an image acquisition coordinate system, and enabling the image acquisition unit to move in the image acquisition coordinate system;
the method comprises the steps of selecting and setting up a coordinate origin of an image acquisition device, wherein the acquisition mechanism is located in a plane parallel to a hanger, and meanwhile, the driving mechanism is used for driving the acquisition mechanism to move along the horizontal direction and the vertical direction in a plane range, so that any vertex angle of the plane range is used as the coordinate origin, the horizontal direction passing through the coordinate origin is the X-axis direction, and the vertical direction passing through the coordinate origin is the Y-axis direction, an image acquisition coordinate system of the movement range of the acquisition mechanism is set up, and the acquisition mechanism can move in the coordinate system to acquire images of indication value areas of all temperature and humidity meters to be detected on the hanger.
S22, driving a collection mechanism of the image collection device to move from a coordinate origin to the right front of any temperature and humidity representation value area to be detected of the hanger through a driving mechanism of the image collection device;
then, the staff can remote control the actuating mechanism to drive the collection mechanism and remove at place plane, this plane is parallel with the stores pylon terminal surface, so the staff passes through actuating mechanism and drives the collection mechanism and remove to the place ahead of arbitrary temperature and humidity table of waiting to examine, then continue to adjust the position of collection mechanism through actuating mechanism, the staff judges whether the image that collection mechanism gathered can accurately read the demonstration value of temperature and humidity table show value district of waiting to examine through observing the real-time image of collection mechanism, if not, then continue to adjust the position of collection mechanism, until the collection mechanism is located the place ahead of current temperature and humidity table show value district of waiting to examine, accomplish the current best position of temperature and humidity table image acquisition of waiting to examine the determination.
S23, recording coordinates of a current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to a current temperature and humidity meter to be detected;
and then driving the movement distance of the acquisition mechanism in the X-axis direction and the movement distance of the acquisition mechanism in the Y-axis direction according to the driving mechanism to obtain the coordinates of the current acquisition mechanism position, and recording the position coordinates to obtain the image acquisition coordinates of the temperature and humidity meter to be detected.
S24, driving the acquisition mechanism to move to the right front of a next temperature and humidity meter to be detected through the driving mechanism, and recording the coordinates of the current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to the current temperature and humidity meter to be detected;
then, after finishing the recording of the previous image acquisition coordinate, the staff continuously drives the acquisition mechanism to move towards the next temperature and humidity meter to be detected through the driving mechanism, and according to the same method, the position of the acquisition mechanism is adjusted to enable the acquisition mechanism to be opposite to the display value area of the current temperature and humidity meter to be detected, and meanwhile the position coordinate of the current acquisition mechanism is recorded, so that the image acquisition coordinate corresponding to the current temperature and humidity meter to be detected is obtained; when the second temperature and humidity meter to be detected is selected, any temperature and humidity meter to be detected except the temperature and humidity meter to be detected with the image acquisition coordinates on the hanging frame can be selected.
S25, repeatedly executing the step S24 until the recording of the corresponding image acquisition coordinates of all the temperature and humidity meters to be detected is completed.
Step S24 is repeatedly executed, so that the acquisition mechanism is moved to the right front of each temperature and humidity meter value area to be detected, and the image acquisition coordinate of each temperature and humidity meter to be detected is obtained; in general, in order to facilitate recording and reduce error rate, a worker may select to sequentially move the acquisition mechanism to the right in front of each temperature and humidity display value area to be detected according to an S-type sequence or a sequence from left to right and from top to bottom.
The step S3 specifically includes:
s31, closing the detection box, inputting the set temperature and humidity experimental value into a temperature and humidity adjusting mechanism in the detection box and a temperature and humidity detecting mechanism in the detection box, and enabling the temperature and humidity adjusting mechanism to adjust the temperature and humidity in the detection box according to the set temperature and humidity experimental value;
after step S2 is completed, the detection box is closed, then a temperature experimental value and a humidity experimental value of the detection box are set according to a hygrothermograph calibration procedure, namely, the temperature and humidity experimental value is set, the temperature inside the detection box is regulated through the temperature and humidity regulating mechanism, and meanwhile, the set temperature and humidity experimental value is input to the temperature and humidity detecting mechanism for judging whether the detection box needs heating or cooling and/or humidifying or dehumidifying according to the temperature and humidity inside the detection box through the temperature and humidity detecting mechanism, so that the temperature and humidity inside the detection box can be kept stable, and the calibration precision and the calibration efficiency are improved.
S32, detecting whether the temperature and the humidity in the detection box meet a set temperature and humidity experimental value through a temperature and humidity detection mechanism, if so, closing the temperature and humidity adjustment mechanism and executing a step S33; if not, keeping the temperature and humidity adjusting mechanism on, and executing step S32;
the temperature and humidity detection mechanism detects the temperature and humidity in the detection box, and the detection box needs to be stable for 30 minutes after reaching a set temperature and humidity value, so that the detection box needs to be ensured to be stable in the process, the temperature and humidity in the detection box are detected by the temperature and humidity detection mechanism in real time, and the heating device, the heat dissipation device, the humidifying device and the dehumidifying device are judged to be turned on or off according to the detection result, so that the temperature in the detection box is ensured to meet the set temperature and humidity value, and the calibration is ensured to be accurate.
S33, the driving mechanism drives the acquisition mechanism to move to the position of any image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
s34, the driving mechanism drives the acquisition mechanism to move to the position of the next image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
and S35, repeatedly executing the step S34 until the acquisition mechanism finishes the movement of all image acquisition coordinate positions, and obtaining the indication value image of each greenhouse degree table to be detected.
After the temperature and humidity in the detection box reach the set experimental value for 30min according to the requirement, starting reading, inputting an image acquisition coordinate of a first temperature and humidity meter to be detected by a worker during reading, driving the acquisition mechanism to move to a corresponding position by a driving mechanism, and completing image acquisition of an image region of the first temperature and humidity meter to be detected to obtain an image of the first temperature and humidity meter to be detected; so reciprocating, can once input all image acquisition coordinates, finally the driving mechanism is carried out according to the image acquisition coordinates input in turn, drive the acquisition mechanism to move to the corresponding position and then carry out image acquisition until the value image of each temperature and humidity meter to be detected is obtained; at the moment, the image acquisition of the actual detection values of all the temperature and humidity meters to be detected on the hanger in the current temperature and humidity test value environment is completed.
The step S4 specifically includes:
matching the current temperature and humidity test value, the display value image of each temperature and humidity meter to be detected and the image acquisition coordinates corresponding to the display value image of each temperature and humidity meter to be detected, and recording;
recording the current temperature and humidity test value and the indication value images of all the temperature and humidity meters to be detected in the current temperature and humidity test value environment, facilitating staff to know in the later data processing which temperature and humidity environment different indication value images are measured, and improving the working efficiency; meanwhile, the indicating value image of the temperature and humidity meter to be detected is matched with the image acquisition coordinates, so that the temperature and humidity meter to be detected corresponding to each indicating value image can be known, calibration errors are avoided, and calibration accuracy and reliability are improved.
The images of the two indication areas can be acquired by the acquisition mechanism at the same image acquisition coordinate position for 5min, the images of the two indication areas are recorded as the indication images of the corresponding temperature and humidity meter to be detected, and the detection values of the two indication areas are read when the later reading is performed to obtain the arithmetic average value of the two indication areas as the detection value of the temperature and humidity meter to be detected.
The step S5 specifically includes:
because the calibration of each temperature and humidity meter to be detected needs to be repeated under the same temperature and humidity condition, and multiple groups of experiments are also needed to be carried out under different temperature and humidity conditions to obtain the actual detection value of each temperature and humidity meter to be detected when the same temperature and humidity experiment value is obtained, and the actual detection value of each temperature and humidity meter to be detected when different temperature and humidity experiment values are also obtained, after setting a new temperature and humidity experiment value, the steps S3-S5 are re-executed until the record of the indication value image of each temperature and humidity meter to be detected under all temperature and humidity experiment value conditions is completed.
The step S6 specifically includes:
s61, reading all the temperature and humidity representation value images to be detected recorded under any temperature and humidity experiment value condition, and obtaining the detection value of each temperature and humidity meter to be detected when the current temperature and humidity experiment value is obtained;
s62, judging whether each temperature and humidity meter to be detected meets the measurement requirement or not according to comparison between the detection value of each temperature and humidity meter to be detected and the current temperature and humidity experimental value, if so, performing single calibration to be qualified, and if not, performing single calibration to be unqualified;
s63, recording a single calibration result of each temperature and humidity meter to be detected under the condition of the current temperature and humidity test value;
s64, selecting a new temperature and humidity experimental value, and executing steps S61-S63 until a calibration result of each temperature and humidity meter to be detected under all temperature and humidity experimental value conditions is obtained;
s65, when all single calibration results of the temperature and humidity meter to be detected are qualified, calibrating the temperature and humidity meter to be detected to be qualified, and if not, finally calibrating to be unqualified.
When reading values, firstly selecting an indication value image corresponding to each temperature and humidity meter to be detected under any temperature and humidity experiment value condition, reading a detection value of each temperature and humidity meter to be detected according to the content of the indication value image, comparing the detection value of each temperature and humidity meter to be detected with the current temperature and humidity experiment value to judge whether the detection value of each temperature and humidity meter to be detected meets the indication value error required by the specification, if so, determining that the temperature and humidity meter to be detected is qualified under the current temperature and humidity experiment value condition, and determining the corresponding temperature and humidity meter to be detected according to the image acquisition coordinates matched with the current indication value image; if the current temperature and humidity experimental value is not met, the temperature and humidity meter to be detected is not qualified under the current temperature and humidity experimental value condition, and the corresponding temperature and humidity meter to be detected is determined according to the image acquisition coordinates matched with the current indication value image.
The method comprises the steps that under the condition of different temperature and humidity experimental values, an indication value image of the same temperature and humidity meter to be detected under the condition of the corresponding temperature and humidity experimental values is obtained, and then through reading, for example, manual reading, the indication value error of whether the detection value of the same temperature and humidity meter to be detected under the condition of different temperature and humidity meets the standard requirement can be obtained, if so, the temperature and humidity meter to be detected is qualified under the condition of the corresponding temperature and humidity experimental values, and the corresponding temperature and humidity meter to be detected is determined according to the image acquisition coordinates matched with the current indication value image; if the current indication value image is not matched with the current indication value image, the temperature and humidity meter to be detected is not qualified under the condition of the corresponding temperature and humidity experimental value, and the corresponding temperature and humidity meter to be detected is determined according to the image acquisition coordinates matched with the current indication value image.
Therefore, until the calibration results of all the temperature and humidity meters to be detected under different temperature and humidity test values are obtained, whether the temperature and humidity meters to be detected are qualified or not can be judged according to the calibration results, whether the temperature and humidity meters to be detected are unqualified or not can be judged, the unqualified temperature and humidity meters can be provided with the error size which is unqualified and calculated under the temperature and humidity test values, the actual calibration requirements are met, the working efficiency is improved, and the stability and reliability of calibration are ensured.
Example 2
The embodiment provides a hygrothermograph calibration system for executing the method described in embodiment 1, including:
the detection unit is used for providing a constant temperature and humidity detection environment according to requirements, and a hanging frame for placing a temperature and humidity meter to be detected is arranged in the detection environment;
the coordinate acquisition unit is used for recording the coordinates of the corresponding positions of the image acquisition unit when the image acquisition unit moves to the position right in front of each temperature and humidity meter to be detected, obtaining the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, and uploading the obtained image acquisition coordinates to the data recording unit;
the execution driving unit is used for driving the image acquisition unit to move to a corresponding position according to the image acquisition coordinates;
the image acquisition unit is used for acquiring an image corresponding to the temperature and humidity display value area to be detected after the image acquisition unit is driven by the execution driving unit to move to the corresponding image acquisition coordinates, so as to obtain a display value image corresponding to the temperature and humidity display value area to be detected, and uploading the obtained display value image to the data recording unit;
the data recording unit is used for receiving the indication value image of each temperature and humidity meter to be detected and the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, matching the received indication value image with the corresponding image acquisition coordinates, and uploading the matched indication value image to the data processing unit;
the data processing unit is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected, determining the temperature and humidity meter to be detected corresponding to each detection value according to the image acquisition coordinates matched with the indication images, and obtaining a calibration result of each temperature and humidity meter to be detected according to the temperature and humidity experimental value of the current detection environment.
The data processing unit includes:
the image reading module is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected;
the to-be-detected greenhouse table matching module is used for determining a to-be-detected temperature and humidity table corresponding to each detection value according to the image acquisition coordinates matched with the indication value image;
the temperature and humidity test value matching module is used for determining a temperature and humidity test value of the detection environment where each temperature and humidity meter to be detected is located according to the temperature and humidity test value matched with the indication image;
and the calibration judgment module is used for comparing the temperature and humidity experimental value of the detection environment where each temperature and humidity meter to be detected is positioned with the detection value of the temperature and humidity meter to be detected in the corresponding detection environment to obtain the calibration result of each temperature and humidity meter to be detected.
Claims (7)
1. The temperature and humidity meter calibration method is used for detecting the temperature and humidity meter to be detected in the detection box and is characterized by comprising the following steps of:
s1, opening a detection box, and installing all the temperature and humidity meters to be detected on a hanger in the detection box;
s2, sequentially moving the image acquisition device to the position right in front of each temperature and humidity representation value area to be detected, simultaneously acquiring position coordinates when the image acquisition device is positioned right in front of each temperature and humidity representation value area to be detected, taking each position coordinate as an image acquisition coordinate and recording the image acquisition coordinates;
s3, closing the detection box, adjusting the temperature and humidity in the detection box according to a set temperature and humidity experimental value, and after the temperature and humidity in the detection box reach the set temperature and humidity experimental value, sequentially moving the image acquisition device to a corresponding position according to the recorded image acquisition coordinates, and carrying out image acquisition on a right-opposite temperature and humidity display value region to be detected after each movement of the image acquisition device to the corresponding position to obtain a display value image of each temperature and humidity display to be detected;
s4, matching and recording the current temperature and humidity experimental values, the display value image of each greenhouse to be detected and the corresponding image acquisition coordinates;
s5, updating the set temperature and humidity experimental values, and executing the steps S3-S5 until all the temperature and humidity experimental values are updated;
s6, obtaining a greenhouse table to be detected corresponding to each greenhouse representation value image to be detected according to the image acquisition coordinates, obtaining a detection value of the corresponding greenhouse table to be detected by reading each greenhouse representation value image to be detected, and obtaining a calibration result of the corresponding temperature and humidity table to be detected by comparing the detection value of the greenhouse table to be detected with the corresponding temperature and humidity test value.
2. The method for calibrating a hygrothermograph according to claim 1, wherein the step S1 specifically comprises:
and opening the detection box, and mounting the temperature and humidity meters to be detected on the hanging frame at intervals, so that the display value area of each temperature and humidity meter to be detected is opposite to the image acquisition device.
3. The method according to claim 2, wherein the step S2 includes the steps of:
s21, establishing an image acquisition coordinate system, and enabling the image acquisition unit to move in the image acquisition coordinate system;
s22, driving a collection mechanism of the image collection device to move from a coordinate origin to the right front of any temperature and humidity representation value area to be detected of the hanger through a driving mechanism of the image collection device;
s23, recording coordinates of a current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to a current temperature and humidity meter to be detected;
s24, driving the acquisition mechanism to move to the right front of a next temperature and humidity meter to be detected through the driving mechanism, and recording the coordinates of the current acquisition mechanism in an image acquisition coordinate system to obtain image acquisition coordinates corresponding to the current temperature and humidity meter to be detected;
s25, repeatedly executing the step S24 until the recording of the corresponding image acquisition coordinates of all the temperature and humidity meters to be detected is completed.
4. The method for calibrating a hygrothermograph according to claim 3, wherein the step S3 comprises the steps of:
s31, closing the detection box, inputting the set temperature and humidity experimental value into a temperature and humidity adjusting mechanism in the detection box and a temperature and humidity detecting mechanism in the detection box, and enabling the temperature and humidity adjusting mechanism to adjust the temperature and humidity in the detection box according to the set temperature and humidity experimental value;
s32, detecting whether the temperature and the humidity in the detection box meet a set temperature and humidity experimental value through a temperature and humidity detection mechanism, if so, closing the temperature and humidity adjustment mechanism and executing a step S33; if not, keeping the temperature and humidity adjusting mechanism on, and executing step S32;
s33, the driving mechanism drives the acquisition mechanism to move to the position of any image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
s34, the driving mechanism drives the acquisition mechanism to move to the position of the next image acquisition coordinate according to the recorded image acquisition coordinate, and the acquisition mechanism acquires the image of the indicating value region of the front temperature and humidity meter to be detected after moving to the corresponding position, so as to obtain the indicating value image of the current temperature and humidity meter to be detected;
and S35, repeatedly executing the step S34 until the acquisition mechanism finishes the movement of all image acquisition coordinate positions, and obtaining the indication value image of each greenhouse degree table to be detected.
5. The method for calibrating a hygrothermograph according to claim 4, wherein the step S6 specifically comprises:
s61, reading all the temperature and humidity representation value images to be detected recorded under any temperature and humidity experiment value condition, and obtaining the detection value of each temperature and humidity meter to be detected when the current temperature and humidity experiment value is obtained;
s62, judging whether each temperature and humidity meter to be detected meets the measurement requirement or not according to comparison between the detection value of each temperature and humidity meter to be detected and the current temperature and humidity experimental value, if so, performing single calibration to be qualified, and if not, performing single calibration to be unqualified;
s63, recording a single calibration result of each temperature and humidity meter to be detected under the condition of the current temperature and humidity test value;
s64, selecting a new temperature and humidity experimental value, and executing steps S61-S63 until a calibration result of each temperature and humidity meter to be detected under all temperature and humidity experimental value conditions is obtained;
s65, when all single calibration results of the temperature and humidity meter to be detected are qualified, calibrating the temperature and humidity meter to be detected to be qualified, and if not, finally calibrating to be unqualified.
6. A hygrothermograph calibration system, comprising:
the detection unit is used for providing a constant temperature and humidity detection environment according to requirements, and a hanging frame for placing a temperature and humidity meter to be detected is arranged in the detection environment;
the coordinate acquisition unit is used for recording the coordinates of the corresponding positions of the image acquisition unit when the image acquisition unit moves to the position right in front of each temperature and humidity meter to be detected, obtaining the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, and uploading the obtained image acquisition coordinates to the data recording unit;
the execution driving unit is used for driving the image acquisition unit to move to a corresponding position according to the image acquisition coordinates;
the image acquisition unit is used for acquiring an image corresponding to the temperature and humidity display value area to be detected after the image acquisition unit is driven by the execution driving unit to move to the corresponding image acquisition coordinates, so as to obtain a display value image corresponding to the temperature and humidity display value area to be detected, and uploading the obtained display value image to the data recording unit;
the data recording unit is used for receiving the indication value image of each temperature and humidity meter to be detected and the image acquisition coordinates corresponding to each temperature and humidity meter to be detected, matching the received indication value image with the corresponding image acquisition coordinates, and uploading the matched indication value image to the data processing unit;
the data processing unit is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected, determining the temperature and humidity meter to be detected corresponding to each detection value according to the image acquisition coordinates matched with the indication images, and obtaining a calibration result of each temperature and humidity meter to be detected according to the temperature and humidity experimental value of the current detection environment.
7. The hygrothermograph calibration system of claim 6, wherein the data processing unit comprises:
the image reading module is used for receiving and reading each indication image to obtain a detection value of each temperature and humidity meter to be detected;
the to-be-detected greenhouse table matching module is used for determining a to-be-detected temperature and humidity table corresponding to each detection value according to the image acquisition coordinates matched with the indication value image;
the temperature and humidity test value matching module is used for determining a temperature and humidity test value of the detection environment where each temperature and humidity meter to be detected is located according to the temperature and humidity test value matched with the indication image;
and the calibration judgment module is used for comparing the temperature and humidity experimental value of the detection environment where each temperature and humidity meter to be detected is positioned with the detection value of the temperature and humidity meter to be detected in the corresponding detection environment to obtain the calibration result of each temperature and humidity meter to be detected.
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| CN116576905A (en) * | 2023-07-13 | 2023-08-11 | 深圳天溯计量检测股份有限公司 | Batch automatic calibration device of temperature and humidity sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116576905A (en) * | 2023-07-13 | 2023-08-11 | 深圳天溯计量检测股份有限公司 | Batch automatic calibration device of temperature and humidity sensor |
| CN116576905B (en) * | 2023-07-13 | 2023-09-29 | 深圳天溯计量检测股份有限公司 | Batch automatic calibration device of temperature and humidity sensor |
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