Coating construction condition monitoring and evaluating device and monitoring and evaluating method

Abstract

The invention discloses a coating construction condition monitoring and evaluating device which comprises a coating construction condition monitoring host module, and the coating construction condition monitoring host module is connected with a coating construction condition monitoring handheld module in a wireless connection mode. The invention further discloses a coating construction condition monitoring and evaluating method. The problem that in the prior art, the coating construction conditions cannot be visually monitored and evaluated in the production process is solved, the temperature, humidity, dew point temperature and to-be-coated surface temperature of the coating construction conditions can be detected or calculated in a one-button mode, results are displayed through numbers, images and color signal lamps, and the system is visual, easy to understand, efficient and convenient. The single-chip microcomputer is adopted to automatically record the detection result, so that the error risk of a manual recording mode is avoided. The environment temperature, the environment humidity and the to-be-coated surface temperature are detected through the sensors, the detection precision is high, and the speed is high.

Description

Technical Field

[0001] The invention belongs to the technical field of construction condition monitoring and evaluation, and relates to a coating construction condition monitoring and evaluation device. The invention also relates to a coating construction condition monitoring and evaluation method. Background Art

[0002] Since the intrinsic quality of the paint film produced by coating is difficult to directly monitor and evaluate through quality inspection means, once a quality problem occurs, it is difficult to detect it in time through subsequent quality inspection means, and it is classified as a special process in quality management. At present, the industry can only ensure the intrinsic and external coating quality of the finished coating product by monitoring the construction process and strictly implementing the coating process requirements and parameters. In the process of monitoring coating production, the temperature, humidity and surface temperature of the coating construction conditions are the focus of monitoring during construction. Usually, a variety of instruments and tools are required to detect and record the coating construction conditions. Taking the industry's common requirements as an example, the ambient temperature needs to be kept within the range of 5℃~40℃ during construction; the ambient humidity is ≤85%; the surface temperature of the coating is at least 3℃ higher than the ambient dew point temperature. Only when these three conditions are met at the same time can the coating construction be carried out. In the specific implementation process, it is usually necessary to use a thermometer and a hygrometer to measure the ambient temperature and humidity, find out the ambient dew point temperature based on the reference dew point query card, and then use a thermometer to measure the surface temperature of the product to be coated. If the result is higher than the dew point temperature found by more than 3℃, construction is allowed. The entire measurement process preparation and operation process is extremely cumbersome, and it places high demands on the ability and experience of the instrument user. Careless operation may lead to wrong conclusions, which may lead to hidden dangers in coating quality. In addition, due to the need to meet deadlines and save costs, coating construction units often neglect to monitor coating construction conditions, and even ignore coating process requirements and force construction. Afterwards, they conceal quality risks by fabricating false records of coating construction conditions. This phenomenon not only has a negative impact on the quality of finished coatings, but also makes it extremely difficult to track, trace, and hold accountable for coating quality problems. Objectively, it further contributes to the occurrence of this chaos, causing some coating construction units to habitually violate regulations, forming a vicious circle and seriously affecting the quality of finished coatings.

[0003] In recent years, all large-scale projects have increased their attention to the coating process, and have manually detected and recorded the coating construction conditions. However, there are still some problems: first, it is easy to make mistakes in the process of manual detection and recording, especially when using the dew point conversion card to convert the dew point temperature. It is necessary to query the environmental dew point results by comparing the two variables of dry bulb temperature and wet bulb temperature. Compared with the common numerical table where one variable corresponds to one result, it is more prone to errors; in addition, the detection of ambient temperature and query of dew point are frequent and time-consuming, and generally need to be detected once every 1 to 2 hours. Workers are also responsible for detection and recording while engaged in coating construction, which increases the workload of workers, slows down the production rhythm, and affects production efficiency.

[0004] The existing coating construction condition detection, recording and monitoring evaluation methods have the disadvantages of cumbersome operation, low efficiency, prone to errors, lack of intuitiveness, questionable credibility, and inconvenient traceability. Therefore, how to solve the series of shortcomings in the traditional coating construction condition monitoring, recording and monitoring evaluation methods has become a problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide a coating construction condition monitoring and evaluation device, which solves the problem that the prior art cannot intuitively monitor and evaluate the coating construction conditions during the production process.

[0006] Another object of the present invention is to provide a method for monitoring and evaluating coating construction conditions.

[0007] The technical solution adopted by the present invention is that the coating construction condition monitoring and evaluation device includes a coating construction condition monitoring host module, and the coating construction condition monitoring host module is connected to the coating construction condition monitoring handheld module by wireless connection.

[0008] The present invention is also characterized in that:

[0009] The coating construction condition monitoring host module includes a first single chip microcomputer, which is respectively connected to a first temperature sensor, a humidity sensor, a storage hard disk, a display screen and a signal light through signal lines;

[0010] The coating construction condition monitoring handheld module comprises a second single chip microcomputer, and the second single chip microcomputer is respectively connected to a second temperature sensor and a display through signal lines.

[0011] Another technical solution adopted by the present invention is a coating construction condition monitoring and evaluation method, which specifically includes the following steps:

[0012] Step 1: Collect ambient temperature and humidity data;

[0013] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0014] Step 3: Display the ambient dew point on the display screen for monitoring;

[0015] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0016] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0017] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the traffic lights.

[0018] Another technical solution of the present invention is also characterized in that:

[0019] The specific method of collecting ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect ambient temperature, and using the humidity sensor to collect ambient humidity;

[0020] The specific method for calculating the ambient dew point is:

[0021] Step 2.1, record the collected ambient temperature as T and the humidity data as RH;

[0022] Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G;

[0023] G = log(RH / 100) + 17.62 *T / (243.5 + T) (1);

[0024] Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td;

[0025] Td = 243.5 * G / (17.62- G) (2);

[0026] The specific method of collecting the surface temperature data of the workpiece to be coated is: using the second temperature sensor in the coating construction condition monitoring handheld module to collect the data.

[0027] The transmission method is: wireless connection transmission.

[0028] The specific contents of turning on and off the signal light according to the calculation result are: if the calculation result is not less than 3℃, turn on the signal light; if the calculation result is less than 3℃, turn off the signal light;

[0029] The specific contents of evaluating whether the construction conditions are met are as follows: if the result is not less than 3°C and the signal light is on, painting construction can be carried out; if the result is less than 3°C and the signal light is off, painting construction cannot be carried out.

[0030] The beneficial effects of the present invention are:

[0031] The present invention can complete the detection or calculation of the temperature, humidity, dew point temperature, and surface temperature to be coated of the coating construction conditions in one-click mode, and the results are displayed in digital, image, and color signal lights, which are intuitive, easy to understand, efficient, and convenient. A single-chip microcomputer is used to automatically record the test results, avoiding the risk of errors in manual recording. Sensors are used to detect ambient temperature, ambient humidity, and surface temperature to be coated, with high detection accuracy and fast speed. The host part adopts a fixed or semi-fixed design, which is suitable for long-term online monitoring of environmental data on the one hand, and on the other hand, it avoids the error caused by the short time interval and insufficient standing time of the detection instrument from the storage environment to the working environment. Wireless data communication is used between the host part and the handheld part, and no physical line needs to be arranged. The communication distance is not less than 100 meters without obstruction. The advantages brought by wireless communication make the entire system flexible to use and arrange at the coating site, and are not limited by the site and the structure and appearance of the coating product. The test results are stored in a storage medium or a cloud server, and the results are easy to view and visualized with the help of secondary development. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a coating construction condition monitoring and evaluation device of the present invention;

[0033] Figure 2 It is a flow chart of a coating construction condition monitoring and evaluation method of the present invention;

[0034] In the figure, 1. coating construction condition monitoring host module, 2. coating construction condition monitoring handheld module, 3. first temperature sensor, 4. humidity sensor, 5. first single-chip microcomputer, 6. storage hard disk, 7. display screen, 8. signal light, 9. second temperature sensor, 10. second single-chip microcomputer, 11. display. DETAILED DESCRIPTION

[0035] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0036] The present invention provides a coating construction condition monitoring and evaluation device, such as Figure 1 As shown, it includes a painting construction condition monitoring host module 1, and the painting construction condition monitoring host module 1 is connected to a painting construction condition monitoring handheld module 2 by wireless connection.

[0037] The coating construction condition monitoring host module 1 includes a first single-chip microcomputer 5, which is respectively connected to a first temperature sensor 3, a humidity sensor 4, a storage hard disk 6, a display screen 7 and a signal light 8 through signal lines to collect ambient temperature and humidity, and finally transmit the results to the display screen 7, turn on the signal light 8 for easy display, and transmit the results to the storage hard disk 6 and the cloud server for backup, so as to facilitate storage and viewing of traceability information. With the help of secondary development functions, the stored data can also be visualized to form a history of coating construction conditions and real-time data charts, which is convenient for arranging coating production plans and conducting online monitoring.

[0038] The coating construction condition monitoring handheld module 2 includes a second single chip microcomputer 10, which is respectively connected to a second temperature sensor 9 and a display 11 through signal lines. The operator can directly obtain information on whether the coating construction can be carried out from the display 11 of the coating construction condition monitoring handheld module 2, so that the operator can check the results without returning to the coating construction condition monitoring host module, which is convenient for on-site inspection and recording.

[0039] The present invention provides a coating construction condition monitoring and evaluation method, using a coating construction condition monitoring and evaluation device, which is specifically implemented according to the following steps: Figure 2 Show:

[0040] Step 1: Collect ambient temperature and humidity data;

[0041] The first temperature sensor in the coating construction condition monitoring host module is used to collect the ambient temperature, and the humidity sensor is used to collect the ambient humidity.

[0042] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0043] Step 2.1, record the collected ambient temperature as T and the humidity data as RH;

[0044] Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G;

[0045] G = log(RH / 100) + 17.62 *T / (243.5 + T) (1);

[0046] Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td;

[0047] Td = 243.5 * G / (17.62- G) (2);

[0048] Step 3: Display the ambient dew point on the display screen for monitoring;

[0049] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0050] The temperature is collected using the second temperature sensor in the coating construction condition monitoring handheld module.

[0051] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0052] The transmission method is: wireless connection transmission;

[0053] The specific contents of turning on and off the signal light according to the calculation result are: if the calculation result is not less than 3℃, turn on the signal light; if the calculation result is less than 3℃, turn off the signal light.

[0054] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the signal lights;

[0055] The specific contents of evaluating whether the construction conditions are met are as follows: if the result is not less than 3°C and the signal light is on, painting construction can be carried out; if the result is less than 3°C and the signal light is off, painting construction cannot be carried out.

[0056] Example 1

[0057] The coating construction condition monitoring and evaluation device proposed in this embodiment is as follows: Figure 1 As shown, it includes a painting construction condition monitoring host module 1, and the painting construction condition monitoring host module 1 is connected to a painting construction condition monitoring handheld module 2 by wireless connection.

[0058] Example 2

[0059] The coating construction condition monitoring and evaluation device proposed in this embodiment is as follows: Figure 1 As shown, it includes a painting construction condition monitoring host module 1, and the painting construction condition monitoring host module 1 is connected to a painting construction condition monitoring handheld module 2 by wireless connection.

[0060] The coating construction condition monitoring host module 1 comprises a first single chip microcomputer 5, and the first single chip microcomputer 5 is respectively connected to a first temperature sensor 3, a humidity sensor 4, a storage hard disk 6, a display screen 7 and a signal light 8 through signal lines.

[0061] Example 3

[0062] The coating construction condition monitoring and evaluation device proposed in this embodiment is as follows: Figure 1 As shown, it includes a painting construction condition monitoring host module 1, and the painting construction condition monitoring host module 1 is connected to a painting construction condition monitoring handheld module 2 by wireless connection.

[0063] The coating construction condition monitoring host module 1 comprises a first single chip microcomputer 5, and the first single chip microcomputer 5 is respectively connected to a first temperature sensor 3, a humidity sensor 4, a storage hard disk 6, a display screen 7 and a signal light 8 through signal lines.

[0064] The coating construction condition monitoring handheld module 2 comprises a second single chip microcomputer 10 , and the second single chip microcomputer 10 is respectively connected to a second temperature sensor 9 and a display 11 through signal lines.

[0065] Example 4

[0066] The coating construction condition monitoring and evaluation method proposed in this embodiment uses a coating construction condition monitoring and evaluation device, such as Figure 2 As shown, the specific implementation steps are as follows:

[0067] Step 1: Collect ambient temperature and humidity data;

[0068] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0069] Step 3: Display the ambient dew point on the display screen for monitoring;

[0070] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0071] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0072] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the traffic lights.

[0073] Example 5

[0074] The coating construction condition monitoring and evaluation method proposed in this embodiment uses a coating construction condition monitoring and evaluation device, such as Figure 2 As shown, the specific implementation steps are as follows:

[0075] Step 1: Collect ambient temperature and humidity data;

[0076] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0077] Step 3: Display the ambient dew point on the display screen for monitoring;

[0078] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0079] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0080] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the traffic lights.

[0081] The specific method for collecting ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect the ambient temperature, and using the humidity sensor to collect the ambient humidity.

[0082] Example 6

[0083] The coating construction condition monitoring and evaluation method proposed in this embodiment uses a coating construction condition monitoring and evaluation device, such as Figure 2 As shown, the specific implementation steps are as follows:

[0084] Step 1: Collect ambient temperature and humidity data;

[0085] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0086] Step 3: Display the ambient dew point on the display screen for monitoring;

[0087] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0088] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0089] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the traffic lights.

[0090] The specific method for collecting ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect the ambient temperature, and using the humidity sensor to collect the ambient humidity.

[0091] The specific method for calculating the ambient dew point is:

[0092] Step 2.1, record the collected ambient temperature as T and the humidity data as RH;

[0093] Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G;

[0094] G = log(RH / 100) + 17.62 *T / (243.5 + T) (1);

[0095] Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td;

[0096] Td = 243.5 * G / (17.62-G) (2).

[0097] Example 7

[0098] The coating construction condition monitoring and evaluation method proposed in this embodiment uses a coating construction condition monitoring and evaluation device, such as Figure 2 As shown, the specific implementation steps are as follows:

[0099] Step 1: Collect ambient temperature and humidity data;

[0100] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0101] Step 3: Display the ambient dew point on the display screen for monitoring;

[0102] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0103] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0104] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the signal lights;

[0105] The specific method for collecting ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect ambient temperature, and using the humidity sensor to collect ambient humidity.

[0106] The specific method for calculating the ambient dew point is:

[0107] Step 2.1, record the collected ambient temperature as T and humidity data as RH;

[0108] Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G;

[0109] G = log(RH / 100) + 17.62 *T / (243.5 + T) (1);

[0110] Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td;

[0111] Td = 243.5 * G / (17.62- G) (2);

[0112] The specific method of collecting the surface temperature data of the workpiece to be coated is: using the second temperature sensor in the coating construction condition monitoring handheld module to collect the data.

[0113] Example 8

[0114] The coating construction condition monitoring and evaluation method proposed in this embodiment uses a coating construction condition monitoring and evaluation device, such as Figure 2 As shown, the specific implementation steps are as follows:

[0115] Step 1: Collect ambient temperature and humidity data;

[0116] Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data;

[0117] Step 3: Display the ambient dew point on the display screen for monitoring;

[0118] Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer;

[0119] Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result;

[0120] Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the signal lights;

[0121] The specific method for collecting ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect ambient temperature, and using the humidity sensor to collect ambient humidity.

[0122] The specific method for calculating the ambient dew point is:

[0123] Step 2.1, record the collected ambient temperature as T and humidity data as RH;

[0124] Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G;

[0125] G = log(RH / 100) + 17.62 *T / (243.5 + T) (1);

[0126] Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td;

[0127] Td = 243.5 * G / (17.62- G) (2);

[0128] The specific method of collecting the surface temperature data of the workpiece to be coated is: using the second temperature sensor in the coating construction condition monitoring handheld module to collect the data;

[0129] The transmission method is: wireless connection transmission;

[0130] The specific contents of turning on and off the signal light according to the calculation result are: if the calculation result is not less than 3℃, turn on the signal light; if the calculation result is less than 3℃, turn off the signal light;

[0131] The specific contents of evaluating whether the construction conditions are met are as follows: if the result is not less than 3°C and the signal light is on, painting construction can be carried out; if the result is less than 3°C and the signal light is off, painting construction cannot be carried out.

Claims

1. A coating construction condition monitoring and evaluation device, characterized in that: It comprises a painting construction condition monitoring host module (1), wherein the painting construction condition monitoring host module (1) is connected to a painting construction condition monitoring handheld module (2) by means of a wireless connection.

2. The coating construction condition monitoring and evaluation device according to claim 1, characterized in that: The coating construction condition monitoring host module (1) comprises a first single chip microcomputer (5), wherein the first single chip microcomputer (5) is respectively connected to a first temperature sensor (3), a humidity sensor (4), a storage hard disk (6), a display screen (7) and a signal light (8) via signal lines.

3. The coating construction condition monitoring and evaluation device according to claim 1, characterized in that: The coating construction condition monitoring handheld module (2) comprises a second single chip microcomputer (10), and the second single chip microcomputer (10) is respectively connected to a second temperature sensor (9) and a display (11) via signal lines.

4. A method for monitoring and evaluating coating construction conditions, characterized in that: The coating construction condition monitoring and evaluation device according to any one of claims 1 to 3 is used and implemented in accordance with the following steps: Step 1: Collect ambient temperature and humidity data; Step 2: Calculate the ambient dew point using the collected ambient temperature and humidity data; Step 3: Display the ambient dew point on the display screen for monitoring; Step 4, collecting the surface temperature data of the workpiece to be coated and transmitting it to the first single chip microcomputer; Step 5: Calculate the surface temperature to be coated minus the ambient dew point temperature by calculating the first single chip computer, transmit the calculation result to the display screen, storage hard disk and display, and turn on and off the signal light according to the calculation result; Step 6: Evaluate whether the construction conditions are met based on the calculation results and the on / off status of the traffic lights.

5. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The specific method of collecting the ambient temperature and humidity data is: using the first temperature sensor in the coating construction condition monitoring host module to collect the ambient temperature, and using the humidity sensor to collect the ambient humidity.

6. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The specific method for calculating the environmental dew point is: Step 2.1, record the collected ambient temperature as T and the humidity data as RH; Step 2.2, using T, RH and formula (1) in step 2.1, calculate the intermediate value G; G = log(RH / 100) + 17.62 *T / (243.5 + T) (1); Step 2.3, using G in step 2.2 and formula (2), calculate the ambient dew point Td; Td = 243.5 * G / (17.62-G) (2).

7. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The specific method for collecting the surface temperature data of the workpiece to be coated is: using the second temperature sensor in the coating construction condition monitoring handheld module to collect the data.

8. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The transmission method is: wireless connection transmission.

9. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The specific content of turning the signal light on and off according to the calculation result is: if the calculation result is not less than 3°C, turn on the signal light; if the calculation result is less than 3°C, turn off the signal light.

10. The coating construction condition monitoring and evaluation method according to claim 4, characterized in that: The specific content of the evaluation of whether the construction conditions are met is: if the result is not less than 3°C and the signal light is on, the painting construction can be carried out; if the result is less than 3°C and the signal light is off, the painting construction cannot be carried out.

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