A visual monitoring system based on temperature control of cap concrete

Abstract

The present invention relates to the technical field of bridge construction, and in particular to a visual monitoring system based on temperature control of a cap concrete, comprising: an acquisition module, a temperature sensor for periodically acquiring ambient temperature; a visualization module, a temperature-time curve based on the acquired temperature; an analysis module; and a maintenance module. In the present invention, the temperature of each area is determined by using an average value of temperature values ​​measured by a plurality of temperature sensors, so as to avoid the problem of misjudgment caused by failure of a single temperature sensor due to the use of a single temperature sensor, and to determine whether a single temperature sensor fails according to the variance of the readings of each temperature sensor, and to replace a sensor whose reading differs greatly from the average value of the readings of each sensor, and to screen out the readings of the original sensor, so as to improve the control accuracy of the temperature acquisition process for concrete and the control accuracy of the temperature during the maintenance process of concrete.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a visual monitoring system based on temperature control of cap concrete. Background Art

[0002] Concrete curing refers to a series of measures taken to control the evaporation of water and temperature changes in concrete after the concrete is poured in order to ensure the strength and durability of the concrete, so as to promote the full hardening and strength development of the concrete. The existing technology uses a concrete formula with a smaller amount of cement and combines the use of polymer moisturizing materials with thermal insulation and rainproof materials to perform moisturizing and thermal insulation curing under the guidance of visual temperature information, avoiding the burial of cooling water pipes and reducing the problem of cracks in the concrete. However, the temperature control accuracy during the concrete curing process is low, resulting in insufficient control accuracy for the concrete quality.

[0003] Chinese patent application number: CN202110818434.2 discloses a temperature control and crack prevention maintenance method for large-volume concrete. This temperature control and crack prevention maintenance method follows the construction steps and requirements of concrete mixing, temperature measurement, and maintenance. By adopting a concrete formula with a small amount of cement and using high-tech temperature measurement methods, the invisible and intangible temperature changes inside the concrete are visualized. The use of polymer moisturizing materials and thermal insulation and rainproof materials is combined to carry out moisturizing and thermal insulation maintenance under the guidance of visualized temperature information, thereby achieving the purpose of not needing cooling water pipes, reducing the temperature difference between the inner and outer surfaces, and avoiding the occurrence of temperature cracks after the concrete hardens. The temperature control and crack prevention maintenance method of the invention does not require the burial of cooling water pipes. It is simple in technology, controllable in operation, cost-saving, and reliable in performance. No temperature cracks have occurred in multiple large-volume concrete constructions. It can be seen that the large-volume concrete temperature visualization monitoring system has the following problems: the temperature control accuracy during concrete curing is low, resulting in insufficient control accuracy for concrete quality. Summary of the invention

[0004] To this end, the present invention provides a visual monitoring system based on temperature control of cap concrete, so as to overcome the problem in the prior art that the temperature control accuracy during concrete curing is low, resulting in insufficient control accuracy for concrete quality.

[0005] To achieve the above purpose, the present invention provides a visual monitoring system based on temperature control of cap concrete. It includes:

[0006] A collection module, which includes a plurality of temperature sensors arranged on the concrete surface for periodically collecting the concrete temperature and arranged in the environment where the concrete is located for periodically collecting the ambient temperature;

[0007] A visualization module connected to the acquisition module, for generating a temperature-time curve based on the acquired temperature of the concrete and the ambient temperature;

[0008] An analysis module, which is connected to the acquisition module and the visualization module, is used to preliminarily analyze whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the temperature-time curve.

[0009] If the absolute value is less than or equal to a first preset absolute value in the analysis module, the analysis module determines that the concrete is qualified for curing;

[0010] If the absolute value is greater than the first preset absolute value and less than or equal to the second preset absolute value in the analysis module, the analysis module preliminarily determines that the concrete is not up to standard in terms of curing, and performs a secondary determination on whether the concrete is up to standard in terms of curing based on the variance of the temperatures measured by the temperature sensors in the current area;

[0011] If the absolute value is greater than the second preset absolute value, the analysis module determines that the concrete is not up to standard in terms of curing, and determines the reason for the failure based on the temperature-time curves of the current area and the lower-level area;

[0012] A secondary determination is made on whether the curing of the concrete is qualified based on the variance of the temperature measured by each temperature sensor in the current area, including: if the variance is greater than or equal to the preset variance in the analysis module, the analysis module determines that the curing of the concrete is qualified and determines that the temperature collection process is unqualified; if the variance is less than the preset variance, the analysis module determines that the curing of the concrete is unqualified;

[0013] The analysis module determines the number of the temperature sensors to be screened out based on the variance difference between the variance and a preset variance when determining that the temperature acquisition process is unqualified;

[0014] When the analysis module completes determining the number of temperature sensors to be screened out, the analysis module calculates a standard evaluation value S based on the variance difference D and the number of temperature sensors to be screened out C, and sets the standard evaluation value S=d×D / D0+c×C / C0, where d is a variance difference weight coefficient, c is a screening number weight coefficient, d+c=1, D0 is a preset variance difference, C0 is a preset screening number,

[0015] The analysis module is provided with a plurality of correction methods for the first preset absolute value based on the standard evaluation value, and the correction range of each correction method for the first preset absolute value is different;

[0016] The analysis module adjusts the corresponding parameters to corresponding values ​​based on the analysis results;

[0017] a curing module connected to the analysis module, comprising a spray unit for watering the concrete surface to keep it moist, a steam unit for conveying steam to the concrete surface to keep it warm, and a moisturizing unit for spraying water mist to the surrounding environment of the concrete to adjust the ambient humidity;

[0018] The temperature sensors arranged on the concrete surface are divided into three areas based on the distance from the concrete side, which are marked as far edge area, middle area and near edge area from far to near, and a number of temperature sensors are evenly distributed in each area.

[0019] Furthermore, the analysis module determines the temperature of a single area at a single time node based on the average value of the temperatures measured by each temperature sensor in the single area at the single time node, the visualization module draws the temperature-time curve of each area, and the analysis module determines whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the curve.

[0020] When the analysis module preliminarily determines that the concrete is not properly maintained, it makes a secondary determination on whether the concrete is properly maintained based on the variance of the temperatures measured by the temperature sensors in the current area, or determines the reason for the failure based on the temperature-time curves of the current area and the lower-level area;

[0021] The middle zone is a lower level area of ​​the near edge zone, the far edge zone is a lower level area of ​​the middle zone, and the area characterized by the ambient temperature is a lower level area of ​​the far edge zone.

[0022] Furthermore, the priority of screening out the temperature sensors is: based on the difference between the average value of the temperatures measured by the temperature sensors in a single area and the temperature measured by a single temperature sensor from large to small.

[0023] Furthermore, when determining that the curing of the concrete is unqualified, the analysis module superimposes the temperature-time curve of the current area with the temperature-time curve of the subordinate area of ​​the current area to obtain a superimposed curve, and the analysis module determines the reason for the unqualified curing of the concrete based on the integral value of the superimposed curve, and the reasons include: concrete drying, unqualified ambient temperature, and unqualified visualization processing process.

[0024] Furthermore, when determining whether the concrete is dry, the analysis module records the ratio of the integral value to the first preset integral value as a primary ratio, and provides a plurality of adjustment methods for the water spraying amount of the spray unit according to the primary ratio, and each adjustment method is different.

[0025] Furthermore, when the analysis module completes the adjustment of the water spraying amount, it provides several adjustment methods for the frequency of spraying water mist by the moisturizing unit based on the adjusted water spraying amount, and the adjustment range of the frequency in each adjustment method is different.

[0026] Furthermore, when the ambient temperature is unqualified, the analysis module determines an adjustment method for the steam output of the steam unit based on the integral difference between the integral value and the first preset integral value, and each adjustment method has a different adjustment range for the steam output.

[0027] Furthermore, the analysis module vacuum packages the temperature sensor when determining that the visualization process is unqualified.

[0028] Compared with the prior art, the beneficial effect of the present invention lies in that the average value of temperature values ​​measured by multiple temperature sensors is used to determine the temperature of each area, thereby avoiding the problem of misjudgment caused by the failure of a single temperature sensor due to the use of a single temperature sensor, and judging whether there is a single temperature sensor failure based on the variance of the readings of each temperature sensor, and replacing the sensor whose reading is greatly different from the average value of the readings of each sensor, and screening out the readings of the original sensor, thereby improving the control accuracy of the temperature collection process for concrete and improving the control accuracy of the temperature during the curing process of concrete.

[0029] Furthermore, in the present invention, the closer the distance to the edge of the concrete, the faster the temperature drops, and regions are divided based on the distance to the edge of the concrete, and each region is analyzed separately, thereby improving the analysis accuracy of the curing process of the concrete.

[0030] Furthermore, the present invention determines the temperature distribution of the concrete surface based on the variance of the readings of each temperature sensor, and when the variance is too large, determines that there is a faulty temperature sensor, and determines the number of sensor readings to be screened out based on the variance, thereby improving the control accuracy of the concrete surface temperature.

[0031] Furthermore, in the present invention, the first preset absolute value is corrected to a corresponding value in combination with the variance of the sensor reading and the number of screening, thereby improving the analysis accuracy of the concrete surface temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural block diagram of the visual monitoring system based on the temperature control of the cap concrete of the present invention;

[0033] Figure 2 A flow chart for preliminarily determining whether the concrete curing is qualified;

[0034] Figure 3 A flow chart for determining whether the concrete curing is qualified;

[0035] Figure 4 Flowchart for analyzing reasons for unsatisfactory concrete curing. DETAILED DESCRIPTION

[0036] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical data of the system of the present invention in the six months before this determination and the corresponding historical determination results. Before this detection, the system of the present invention comprehensively determines the values ​​of the preset parameter standards for this determination based on the evaluation values ​​of the 37,383 retrieval results detected cumulatively in the first three months. It can be understood by those skilled in the art that the system of the present invention can determine the single parameter mentioned above by selecting the value with the highest proportion as the preset standard parameter according to the data distribution, using weighted summation to use the obtained value as the preset standard parameter, substituting each historical data into a specific formula and using the value obtained by the formula as the preset standard parameter or other selection methods, as long as the system of the present invention can clearly define the different specific situations in the single determination process through the obtained values.

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0039] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figure 1 As shown, it is a structural block diagram of the visual monitoring system based on the temperature control of the foundation concrete of the present invention.

[0042] The present invention provides a visual monitoring system based on temperature control of cap concrete, comprising:

[0043] A collection module, which includes a plurality of temperature sensors arranged on the concrete surface for periodically collecting the concrete temperature and arranged in the environment where the concrete is located for periodically collecting the ambient temperature;

[0044] A visualization module connected to the acquisition module, for generating a temperature-time curve based on the acquired temperature of the concrete and the ambient temperature;

[0045] An analysis module, which is connected to the acquisition module and the visualization module, and is used to preliminarily analyze whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the temperature-time curve, and to make a secondary judgment on whether the curing of the concrete is qualified based on the variance of the temperature measured by each temperature sensor in the current area when the concrete is preliminarily judged to be unqualified, or to analyze the reason for the unqualified concrete based on the temperature-time curve, and the analysis module adjusts the corresponding parameters to the corresponding values ​​based on the analysis results;

[0046] a curing module connected to the analysis module, comprising a spray unit for watering the concrete surface to keep it moist, a steam unit for conveying steam to the concrete surface to keep it warm, and a moisturizing unit for spraying water mist to the surrounding environment of the concrete to adjust the ambient humidity;

[0047] The temperature sensors arranged on the concrete surface are divided into three areas based on the distance from the concrete side, which are marked as far edge area, middle area and near edge area from far to near, and a number of temperature sensors are evenly distributed in each area.

[0048] The present invention adopts the average value of temperature values ​​measured by multiple temperature sensors to determine the temperature of each area, thereby avoiding the problem of misjudgment caused by failure of a single temperature sensor due to the use of a single temperature sensor, and determines whether there is a single temperature sensor failure based on the variance of the readings of each temperature sensor, and replaces the sensor whose reading differs greatly from the average value of the readings of each sensor, and screens out the readings of the original sensor, thereby improving the control accuracy of the temperature collection process for concrete and the control accuracy of the temperature during the curing process of concrete.

[0049] See also Figure 2 As shown, it is a flow chart for preliminarily determining whether the curing of concrete is qualified.

[0050] Specifically, the analysis module determines the temperature of a single area at a single time node based on the average value of the temperatures measured by each temperature sensor in the single area at the single time node, the visualization module draws the temperature-time curve of each area, and the analysis module determines the preliminary determination method of whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the curve, wherein:

[0051] The first preliminary determination method is that the analysis module determines that the concrete is qualified for curing; the first preliminary determination method satisfies that the absolute value is less than or equal to a first preset absolute value in the analysis module;

[0052] The second preliminary determination method is that the analysis module preliminarily determines that the curing of the concrete is unqualified, and performs a secondary determination on whether the curing of the concrete is qualified based on the variance of the temperature measured by each temperature sensor in the current area; the second preliminary determination method satisfies that the absolute value is greater than the first preset absolute value and is less than or equal to the second preset absolute value in the analysis module;

[0053] The third preliminary determination method is that the analysis module determines that the curing of the concrete is unqualified, and determines the reason for the unqualified concrete based on the temperature-time curve of the current area and the lower area; the third preliminary determination method satisfies that the absolute value is greater than the second preset absolute value;

[0054] The middle zone is a lower level area of ​​the near edge zone, the far edge zone is a lower level area of ​​the middle zone, and the area characterized by the ambient temperature is a lower level area of ​​the far edge zone.

[0055] In the embodiment of the present invention, the first preset absolute value is 0.85, and the second preset absolute value is 1.5.

[0056] In the present invention, the closer the distance to the edge of the concrete is, the faster the temperature decreases. Regions are divided based on the distance to the edge of the concrete, and each region is analyzed separately, thereby improving the analysis accuracy of the curing process of the concrete.

[0057] See also Figure 3 As shown, it is a flow chart for determining whether the curing of concrete is qualified.

[0058] Specifically, the analysis module determines a determination method for determining whether the curing of the concrete is qualified based on the variance under the second preliminary determination method, wherein:

[0059] The first determination method is that the analysis module determines that the curing of the concrete is qualified, and determines that the temperature acquisition process is unqualified; the first determination method satisfies that the variance is greater than or equal to the preset variance in the analysis module;

[0060] The second determination method is that the analysis module determines that the curing of the concrete is unqualified; the second determination method satisfies that the variance is less than the preset variance.

[0061] In the embodiment of the present invention, the preset variance is 23.5.

[0062] Specifically, the analysis module determines a method for determining the number of the temperature sensors to be screened out based on a variance difference between the variance and the preset variance in the first determination method, wherein:

[0063] The first determination method is that the analysis module determines that the number of temperature sensors to be screened out is a first-level screening number; the first determination method satisfies that the variance difference is less than or equal to a preset variance difference in the analysis module;

[0064] The second determination method is that the analysis module determines that the screening number of the temperature sensors is the secondary screening number; the second determination method satisfies that the variance difference is greater than the preset variance difference;

[0065] The priority of screening out the temperature sensors is: based on the difference between the average value of the temperatures measured by the temperature sensors in a single area and the temperature measured by a single temperature sensor from large to small.

[0066] In the embodiment of the present invention, the preset variance difference value is 2.5, the first-level screening number is 2, and the second-level screening number is 4.

[0067] The present invention determines the temperature distribution of the concrete surface based on the variance of the readings of each temperature sensor, and when the variance is too large, determines that a faulty temperature sensor exists, and determines the number of sensor readings to be screened out based on the variance, thereby improving the control accuracy of the concrete surface temperature.

[0068] Specifically, the analysis module calculates the standard evaluation value S based on the variance difference D and the screening number C of the temperature sensor under the first preset condition, and sets the standard evaluation value S=d×D / D0+c×C / C0, where d is the variance difference weight coefficient, c is the screening number weight coefficient, d+c=1, D0 is the preset variance difference, C0 is the preset screening number,

[0069] The analysis module determines a correction method for the first preset absolute value based on the standard evaluation value, wherein:

[0070] The first correction method is that the analysis module selects the first correction coefficient α1 to correct the first preset absolute value V to the corresponding value, and sets the corrected first preset absolute value V'=α1×V0, where V0 is the initial first preset absolute value before correction; the first correction method satisfies that the standard evaluation value is less than or equal to the preset standard evaluation value in the analysis module;

[0071] The second correction method is that the analysis module selects the second correction coefficient α2 to correct the first preset absolute value V to the corresponding value, and sets the corrected first preset absolute value V'=α2×V0; the second correction method satisfies that the standard evaluation value is greater than the preset standard evaluation value;

[0072] The first preset condition is that the analysis module completes determining the number of the temperature sensors to be screened out.

[0073] In the embodiment of the present invention, the first correction coefficient is 1.2, the second correction coefficient is 1.3, the variance difference weight coefficient is 0.4, the screening quantity weight coefficient is 0.6, the preset screening quantity is 3, and the preset standard evaluation value is 1.38.

[0074] In the present invention, the first preset absolute value is corrected to a corresponding value in combination with the variance of the sensor reading and the number of screening, thereby improving the analysis accuracy of the concrete surface temperature.

[0075] See also Figure 4 As shown, it is a flow chart for analyzing the reasons for unqualified concrete curing.

[0076] Specifically, the analysis module superimposes the temperature-time curve of the current area with the temperature-time curve of the lower area of ​​the current area under the second preset condition to obtain a superimposed curve, and the analysis module determines a cause determination method for the unqualified curing of the concrete based on the integral value of the superimposed curve, wherein:

[0077] The first cause determination method is that the analysis module determines that the cause of the unqualified curing of the concrete is that the concrete is dry; the first cause determination method satisfies that the integral value is less than or equal to the first preset integral value in the analysis module;

[0078] The second cause determination method is that the analysis module determines that the cause of the unqualified curing of the concrete is unqualified ambient temperature; the second cause determination method satisfies that the integral value is greater than the first preset integral value and less than or equal to the second preset integral value in the analysis module;

[0079] The third reason determination method is that the analysis module determines that the reason for the failure of the concrete curing is that the visualization processing process is unqualified; the third reason determination method satisfies that the integral value is greater than the second preset integral value;

[0080] The second preset condition is that the analysis module determines that the curing of the concrete is unqualified.

[0081] In the embodiment of the present invention, the first preset integral value is 5.2, and the second preset integral value is 10.52.

[0082] Specifically, the analysis module records the ratio of the integral value to the first preset integral value as a primary ratio under the first cause determination mode, and determines the adjustment mode for the water spraying amount of the spray unit according to the primary ratio, wherein:

[0083] The first adjustment method is that the analysis module selects the first adjustment coefficient β1 to adjust the water spray volume W to the corresponding value, and sets the adjusted water spray volume W'=β1×W0, where W0 is the initial water spray volume before adjustment; the first adjustment method satisfies that the first-level ratio is less than or equal to the preset first-level ratio in the analysis module;

[0084] The second adjustment method is that the analysis module selects the second adjustment coefficient β2 to adjust the water spray volume W to the corresponding value, and sets the adjusted water spray volume W'=β2×W0; the second adjustment method satisfies that the first-level ratio is greater than the preset first-level ratio.

[0085] In the embodiment of the present invention, the first adjustment coefficient is 1.2, the second adjustment coefficient is 1.3, and the preset primary ratio is 0.65.

[0086] Specifically, the analysis module determines the frequency adjustment method for spraying water mist for the moisturizing unit based on the adjusted water spraying amount under the third preset condition, wherein:

[0087] The first frequency adjustment method is that the analysis module selects the first frequency adjustment coefficient γ1 to adjust the frequency Q of the moisturizing unit spraying water mist to a corresponding value, and sets the adjusted frequency Q'=γ1×Q0, where Q0 is the initial frequency before adjustment; the first frequency adjustment method satisfies that the adjusted water spraying amount is less than or equal to the preset water spraying amount in the analysis module;

[0088] The second frequency adjustment method is that the analysis module selects the second frequency adjustment coefficient γ2 to adjust the frequency Q of the moisturizing unit spraying water mist to a corresponding value, and sets the adjusted frequency Q'=γ2×Q0; the second frequency adjustment method satisfies that the adjusted water spraying amount is greater than the preset water spraying amount;

[0089] The third preset condition is that the analysis module completes the adjustment of the water spraying amount.

[0090] In the embodiment of the present invention, the first frequency adjustment coefficient is 1.3, and the second frequency adjustment coefficient is 1.5.

[0091] Specifically, the analysis module determines the steam regulation mode for the steam output of the steam unit based on the integral difference between the integral value and the first preset integral value in the second cause determination mode, wherein:

[0092] The first steam regulation mode is that the analysis module selects the first steam regulation coefficient m1 to adjust the steam output M to the corresponding value, and sets the adjusted steam output M'=m1×M0, where M0 is the initial steam output before regulation; the first steam regulation mode satisfies that the integral difference is less than or equal to the preset integral difference in the analysis module;

[0093] The second steam regulation method is that the analysis module selects the second steam regulation coefficient m2 to adjust the steam output M to the corresponding value, and sets the adjusted steam output M'=m2×M0; the second steam regulation method satisfies that the integral difference is greater than the preset integral difference.

[0094] In the embodiment of the present invention, the first steam regulation coefficient is 1.2, the second steam regulation coefficient is 1.3, and the preset integral difference is 2.5.

[0095] Specifically, the analysis module vacuum-wraps the temperature sensor in the third cause determination method.

[0096] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A visual monitoring system based on temperature control of cap concrete, characterized in that: include: A collection module, which includes a plurality of temperature sensors arranged on the concrete surface for periodically collecting the concrete temperature and arranged in the environment where the concrete is located for periodically collecting the ambient temperature; A visualization module connected to the acquisition module, for generating a temperature-time curve based on the acquired temperature of the concrete and the ambient temperature; An analysis module, which is connected to the acquisition module and the visualization module, is used to preliminarily analyze whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the temperature-time curve. If the absolute value is less than or equal to a first preset absolute value in the analysis module, the analysis module determines that the concrete is qualified for curing; If the absolute value is greater than the first preset absolute value and less than or equal to the second preset absolute value in the analysis module, the analysis module preliminarily determines that the concrete is not up to standard in terms of curing, and performs a secondary determination on whether the concrete is up to standard in terms of curing based on the variance of the temperatures measured by the temperature sensors in the current area; If the absolute value is greater than the second preset absolute value, the analysis module determines that the concrete is not up to standard in terms of curing, and determines the reason for the failure based on the temperature-time curves of the current area and the lower-level area; A secondary determination is made on whether the curing of the concrete is qualified based on the variance of the temperature measured by each temperature sensor in the current area, including: if the variance is greater than or equal to the preset variance in the analysis module, the analysis module determines that the curing of the concrete is qualified and determines that the temperature collection process is unqualified; if the variance is less than the preset variance, the analysis module determines that the curing of the concrete is unqualified; The analysis module determines the number of the temperature sensors to be screened out based on the variance difference between the variance and a preset variance when determining that the temperature acquisition process is unqualified; When the analysis module completes determining the number of temperature sensors to be screened out, the analysis module calculates a standard evaluation value S based on the variance difference D and the number of temperature sensors to be screened out C, and sets the standard evaluation value S=d×D / D0+c×C / C0, where d is a variance difference weight coefficient, c is a screening number weight coefficient, d+c=1, D0 is a preset variance difference, C0 is a preset screening number, The analysis module is provided with a plurality of correction methods for the first preset absolute value based on the standard evaluation value, and the correction range of each correction method for the first preset absolute value is different; The analysis module adjusts the corresponding parameters to corresponding values ​​based on the analysis results; a curing module connected to the analysis module, comprising a spray unit for watering the concrete surface to keep it moist, a steam unit for conveying steam to the concrete surface to keep it warm, and a moisturizing unit for spraying water mist to the surrounding environment of the concrete to adjust the ambient humidity; The temperature sensors arranged on the concrete surface are divided into three areas based on the distance from the concrete side, which are marked as far edge area, middle area and near edge area from far to near, and a number of temperature sensors are evenly distributed in each area.

2. The visual monitoring system based on temperature control of cap concrete according to claim 1 is characterized in that: The analysis module determines the temperature of a single area at a single time node based on the average value of the temperatures measured by each temperature sensor in the single area at the single time node. The visualization module draws the temperature-time curve of each area. The analysis module determines whether the curing of the concrete is qualified based on the absolute value of the slope between two adjacent time nodes in the curve. When the analysis module preliminarily determines that the concrete is not properly maintained, it makes a secondary determination on whether the concrete is properly maintained based on the variance of the temperatures measured by the temperature sensors in the current area, or determines the reason for the failure based on the temperature-time curves of the current area and the lower-level area; The middle zone is a lower level area of ​​the near edge zone, the far edge zone is a lower level area of ​​the middle zone, and the area characterized by the ambient temperature is a lower level area of ​​the far edge zone.

3. The visual monitoring system based on temperature control of cap concrete according to claim 2 is characterized in that: The priority of screening out the temperature sensors is: based on the difference between the average value of the temperatures measured by the temperature sensors in a single area and the temperature measured by a single temperature sensor from large to small.

4. The visual monitoring system based on temperature control of cap concrete according to claim 3 is characterized in that: When determining that the curing of the concrete is unqualified, the analysis module superimposes the temperature-time curve of the current area with the temperature-time curve of the subordinate area of ​​the current area to obtain a superimposed curve. The analysis module determines the reason for the unqualified curing of the concrete based on the integral value of the superimposed curve, and the reasons include: concrete drying, unqualified ambient temperature, and unqualified visualization processing process.

5. The visual monitoring system based on temperature control of cap concrete according to claim 4 is characterized in that: When determining whether the concrete is dry, the analysis module records the ratio of the integral value to the first preset integral value as a primary ratio, and provides a plurality of different adjustment modes for the water spraying amount of the spray unit according to the primary ratio.

6. The visual monitoring system based on temperature control of cap concrete according to claim 5 is characterized in that: When the analysis module completes the adjustment of the water spraying amount, it provides several adjustment methods for the frequency of spraying water mist by the moisturizing unit based on the adjusted water spraying amount, and the adjustment range of the frequency in each adjustment method is different.

7. The visual monitoring system based on temperature control of cap concrete according to claim 6 is characterized in that: When the ambient temperature is unqualified, the analysis module determines an adjustment method for the steam output of the steam unit based on the integral difference between the integral value and the first preset integral value, and each adjustment method has a different adjustment range for the steam output.

8. The visual monitoring system based on temperature control of cap concrete according to claim 7 is characterized in that: The analysis module vacuum packages the temperature sensor when determining that the visualization process is unqualified.

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