Steam curing method of intelligent road and bridge precast beam

Abstract

The invention discloses a steam curing method for an intelligent road and bridge precast beam. The steam curing method comprises the steps that S1, the precast beam is subjected to steam curing through a curing chamber; s2, the overall temperature distribution diagram of the precast beam in each stage of the steam curing process is obtained in real time; s3, when abnormity occurs in the overall temperature distribution diagram, an adjusting instruction is generated; and S4, the humidity and the temperature in the curing chamber and the humidity and the temperature of the precast beam are adjusted in real time according to the adjusting instruction. The quality condition of the precast beam in the maintenance process can be monitored in real time, early warning can be conducted in time when abnormity occurs, accurate adjustment on the maintenance technology is rapidly made, the percent of pass of the precast beam is increased, and waste of resources and labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of road and bridge maintenance, and in particular to a steaming method for prefabricated beams of smart road and bridges. Background Art

[0002] At present, the prefabricated beams used in bridge construction, after pre-setting, are cured in a curing room by spraying to improve quality requirements such as surface smoothness and overall strength. This can significantly shorten the construction period under conditions of lower energy consumption, provide strong support for the current vigorous development of smart road and bridge construction, and is also more environmentally friendly.

[0003] The current process of steaming and curing precast beams in a curing room generally includes: ① static period (pre-setting period): after pouring in the mold, the beams are vibrated and exhausted, and initially solidified to a certain strength to avoid damage during transportation to the curing room; ② heating period: after the static period is completed, the mold is transferred to the curing room, and steam is generated by a steam generator, and the steam is sprayed from the pipes or waterways in the outer mold to the surface of the inner mold (i.e., the mold mentioned above); ③ thermostat: the humidity and temperature requirements are met by indoor spraying, and temperature compensation can also be provided by spraying through the internal pipes of the outer mold; ④ cooling period: when the precast beam reaches the strength requirement for demolding, the temperature change requirement is achieved through the internal pipes of the outer mold, and the indoor spraying meets the indoor and outdoor temperature difference requirements before the precast beam is demolded.

[0004] In addition, the application of advanced technologies such as modern intelligent variable temperature steam curing system and automatic spray curing system in precast beam curing room has significantly improved the curing efficiency and quality. However, these technologies are mainly reflected in the implementation of automatic curing. As we all know, a curing room cannot be completely closed, so it will be affected by external natural weather conditions during the curing process, especially in extreme weather conditions, which will seriously affect the curing quality.

[0005] During the curing process, since the precast beams are roughly in a closed state in the inner mold (refer to the existing Chinese utility model patent with publication number CN220241823U), it is difficult to accurately monitor the exact curing quality. When cracks or holes appear, it is difficult to discover them in time, resulting in the final precast beams failing to meet the construction requirements. This is the main factor that makes it difficult to further improve the qualified rate of precast beam curing.

[0006] In addition, unexpected situations may occur during the pouring process before curing or during the transportation process. During these periods, the inspection of precast beams is usually manual local inspection, resulting in the failure to adjust the spray parameters at various stages of the curing process in a timely manner, which can easily affect the quality of the final product.

[0007] Therefore, in order to further improve the current qualified rate of precast beam maintenance and to reduce the waste rate of various resources, the present application proposes a smart steaming method for road and bridge precast beams, which can timely detect and adjust problems that occur in various stages of the maintenance process of precast beams. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a method for steaming and curing prefabricated beams of intelligent road and bridges, which can realize real-time monitoring of the quality of prefabricated beams during the curing process, and timely warning when abnormalities occur and rapid and precise adjustments to the curing process, so as to improve the qualified rate of prefabricated beams and reduce the waste of resources and manpower costs.

[0009] In order to achieve the above object, the present invention provides the following technical solutions: The steaming method of the precast beam of the smart road bridge includes: S1. Steam-curing the prefabricated beams in a curing room; S2. Real-time acquisition of the overall temperature distribution diagram of the precast beam at each stage of the steam curing process; S3, generating an adjustment instruction when an abnormality occurs in the overall temperature distribution diagram; S4. Adjust the humidity and temperature in the curing room and the humidity and temperature of the precast beams in real time according to the adjustment instructions.

[0010] Through the above method, the quality of precast beams during the maintenance process can be monitored in real time, and when abnormalities occur, timely warnings can be given and precise adjustments can be made to the maintenance process to improve the qualification rate of precast beams and reduce the waste of resources and labor costs.

[0011] Preferably, the step S2 of obtaining in real time the overall temperature distribution diagram of the precast beam in each stage of the steaming process comprises: S21, using an infrared camera located in the middle of the top wall of the curing room to monitor the entire precast beam in real time and generate an initial infrared thermal image; S22, receiving real-time spray parameter information during the maintenance process, including spray position and spray temperature; S23, performing error compensation on the initial infrared thermal image according to the real-time spray parameter information to generate an overall temperature distribution map.

[0012] Through the above method, real-time, all-round and rapid abnormal inspection of precast beams can be carried out without stopping the maintenance process, and timely warning can be given when the precast beams are about to become unqualified, thereby effectively preventing the situation where the final precast beams are unqualified due to deficiencies in the current maintenance process.

[0013] Preferably, the real-time spray parameter information in step S23 is the spray parameter information of the nozzle in the outer mold.

[0014] Through the above method, the influence of the spraying operation in the outer mold during the curing process on the collection of the overall temperature distribution map of the precast beam is further reduced, the accuracy of the collection of the overall temperature distribution map is improved, and the misjudgment rate is reduced.

[0015] Preferably, the step S3 of generating an adjustment instruction when an abnormality occurs in the overall temperature distribution diagram includes: S31, receiving spray status information, including the current maintenance process, the standard temperature distribution map corresponding to the current maintenance process, and the standard temperature threshold; S32, when an abnormal area appears in the overall temperature distribution map, obtaining first temperature information of the abnormal area; S33, judging whether there is an abnormality according to the standard temperature threshold and the first temperature information; S34: When it is determined that there is an abnormality, the adjustment instruction is generated.

[0016] Through the above method, a large number of abnormal misjudgments caused by inaccurate temperature detection by infrared cameras can be avoided, ensuring the smooth progress of the maintenance process.

[0017] Preferably, the step S4 adjusting the humidity and temperature in the curing room and the humidity and temperature of the precast beam in real time according to the adjustment instruction includes: S41, receiving second temperature information, position information and specification information of the abnormal area according to the adjustment instruction; the specification information includes the shape and area of ​​the abnormal area; S42, matching the nozzles at corresponding positions in the curing room according to the position information; S43, adjusting the spray power and the spray angle according to the specification information, and adjusting the spray temperature according to the temperature information.

[0018] Through the above method, a solution is provided to specifically solve the problem of temperature failure in the area of ​​precast beams during the curing process, thereby avoiding the impact of continued deterioration of the quality of the area on the final product quality.

[0019] Preferably, the step S34 generates an adjustment instruction when it is determined that there is an abnormality, including: S341, generating a detection instruction when it is determined that there is an abnormality, and marking the location information of the abnormal area; S342, matching the infrared sensor in the maintenance room corresponding to the position information according to the detection instruction, and adjusting the angle of the infrared sensor according to the position information so that the infrared sensor points to the abnormal area; S343, obtaining second temperature information of the abnormal area through the infrared sensor; S344, generating a temperature numerical gradient map of the abnormal area according to the second temperature information; S345, comparing the temperature numerical gradient map with the standard temperature distribution map to determine whether cracks and holes appear in the prefabricated beam; S346. When the cracks or holes do not appear, it is determined that there is no defect abnormality and the adjustment instruction is generated.

[0020] Through the above method, targeted temperature detection and treatment of abnormal positions on prefabricated beams can be achieved without affecting the maintenance process, making the spray parameter adjustment more accurate, thereby improving the qualification rate of prefabricated beams and the quality of finished products.

[0021] Preferably, the S34 further includes: S347, when the cracks or holes appear, it is determined to be a defect abnormality, and a maintenance suspension instruction is generated; S348, suspending the steaming process according to the curing suspension instruction; S349, transmitting an ultrasonic signal to the prefabricated beam through an ultrasonic detector, and receiving a signal reflected by the prefabricated beam; S3410, confirming the presence or absence of cracks or holes according to the signal reflected by the prefabricated beam; S3411, when it is confirmed that there is no defect, proceed to step S346; when it is confirmed that there is a defect, generate a repair instruction and report it, and report the location information of the abnormal area at the same time; S3412. After the precast beam is repaired, repeat step S2.

[0022] Through the above method, it is possible to further verify whether the prefabricated beams are unqualified during the maintenance process, and to issue an alarm more accurately to remind construction personnel to make repairs quickly, greatly reducing the waste of prefabricated beam production time.

[0023] Preferably, after generating the adjustment instruction in step S346, the following steps are further included: The temperature numerical gradient map is processed to obtain specification information of the abnormal area.

[0024] Through the above method, the adjustment of the spraying parameters can be more accurate when abnormalities occur in the prefabricated beam during the maintenance process, thereby improving the finished product quality of the prefabricated beam.

[0025] Preferably, after confirming the defect in step S3411, the process further includes: Obtaining the size, shape and direction of the cracks and / or holes; The amount of consumables required for repairing is calculated based on the size, shape and direction of the cracks and / or holes.

[0026] Through the above method, it is convenient for construction personnel to carry out repair work better and reduce the waste of consumables.

[0027] Preferably, the step S3 further includes S35, calibrating the temperature distribution diagram when it is determined that there is no abnormality, including: S351, generating a calibration instruction when it is determined that there is no abnormality; S352, obtaining location information of the abnormal area according to the calibration instruction; S353, calling the infrared sensor corresponding to the abnormal area according to the position information to obtain second temperature information of the abnormal area; S354. Calibrate the temperature distribution map according to the second temperature information of the abnormal area.

[0028] By means of the above method, the feasibility of the steaming method is further improved.

[0029] Preferably, the ultrasonic detector is arranged in the inner mold, and the inner mold is provided with electric baffles at the transmitting end and the receiving end of the ultrasonic detector. When the maintenance process is suspended, the electric baffles are removed to cover the ultrasonic detector.

[0030] Through the above method, it is ensured that the ultrasonic detector can work normally, and at the same time it does not affect the implementation of the maintenance process.

[0031] Preferably, the nozzle comprises a spray head arranged on the inner wall of the curing chamber and a nozzle or a water outlet arranged in the mold.

[0032] Through the above method, the maintenance efficiency of the existing maintenance process can be further improved.

[0033] Compared with the prior art, the present invention has the following beneficial effects: the quality of precast beams during the maintenance process can be monitored in real time, and when abnormalities occur, early warnings can be given in time and precise adjustments can be made to the maintenance process quickly, so as to improve the qualification rate of precast beams and reduce the waste of resources and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural schematic diagram of the steam curing method of the smart road and bridge prefabricated beam proposed by the present invention when it is applied in a curing room; Figure 2 The present invention provides a flow chart of the steaming method for the smart prefabricated road and bridge beams.

[0035] In the figure: 1. Curing room; 2. Infrared camera; 3. Nozzle; 4. Infrared sensor; 5. Ultrasonic detector; 6. Electric baffle; 7. Outer mold; 8. Inner mold. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-2 The present invention provides the following technical solution: a steaming method for a prefabricated beam for a smart road bridge, comprising: S1, steam curing the precast beam in curing room 1; S2. Real-time acquisition of the overall temperature distribution diagram of the precast beam at each stage of the steam curing process; S3, generating an adjustment instruction when an abnormality occurs in the overall temperature distribution diagram; S4. Adjust the humidity and temperature in the curing room 1 and the humidity and temperature of the precast beams in real time according to the adjustment instructions.

[0038] As an optional implementation scheme of the present invention, after the precast beam completes the static stop period, it is connected to the inner mold 8 and sent to the outer mold 7 in the curing room 1 for steam curing. At each stage of the steam curing process, the defects of the precast beam are monitored in real time. When an abnormality appears in the real-time overall temperature distribution diagram of the precast beam, it is uploaded to the control system, so as to adjust various parameters of the curing process, so that various steam curing parameters in the curing process can be adjusted in real time based on the actual situation of the precast beam. Whether the precast beam is about to or has already failed to meet the requirements, it can be warned in time and the curing process can be accurately adjusted. Therefore, without the need for additional manpower, the qualified rate of the current precast beam curing process can be significantly improved, and a large amount of resources and manpower waste caused by failure can be greatly reduced.

[0039] Through the above method, the quality of precast beams during the maintenance process can be monitored in real time, and when abnormalities occur, timely warnings can be given and precise adjustments can be made to the maintenance process to improve the qualification rate of precast beams and reduce the waste of resources and labor costs.

[0040] Furthermore, S2 obtains the overall temperature distribution diagram of the precast beam in each stage of the steam curing process in real time, including: S21, using an infrared camera 2 disposed in the middle of the top wall of the curing room 1 to monitor the entire precast beam in real time and generate an initial infrared thermal image; S22, receiving real-time spray parameter information during the maintenance process, including spray position and spray temperature; S23, performing error compensation on the initial infrared thermal image according to the real-time spray parameter information to generate an overall temperature distribution map.

[0041] As an optional implementation scheme of the present invention, when obtaining the overall temperature distribution map, since a large number of nozzles 3 will be arranged in the curing room 1 to spray the precast beams in all directions, the infrared camera 2 is arranged in the middle of the top wall of the curing room 1 to reduce the liquid's obstruction of the field of vision of the precast beams. However, during curing, there will still be interference of the liquid temperature in obtaining the overall temperature distribution map of the precast beams. Therefore, when the infrared camera 2 obtains the overall temperature distribution map in real time, the various spraying parameters are compensated for the overall temperature distribution map in real time, thereby eliminating these interferences and improving the accuracy of the overall temperature distribution map. It is worth noting that no matter what compensation is made, the overall temperature distribution map obtained by the infrared camera 2 is always not accurate enough, but the overall temperature distribution map can still reflect the overall temperature changes of the precast beam in real time, because it can be distinguished from the color changes on the overall temperature distribution map. When the temperature of a certain area of ​​the precast beam changes significantly, it will cause the overall temperature distribution map to change significantly, so this does not affect the judgment of whether there is an abnormality in step S3. The technical solution aims to find out the area with abnormal temperature from the overall temperature distribution of the precast beam. It is a comprehensive and rapid investigation solution, and does not require manpower. Even if the accuracy is insufficient, it can effectively warn the part that is about to have an abnormality in time, which is very helpful for the implementation of the precise detection plan in the subsequent plan, and there is no need to stop the maintenance process.

[0042] Among them, those skilled in the art can also make optimization improvements to the spraying process, such as designing the spraying of the nozzle 3 to be intermittent, and obtaining the overall temperature distribution diagram of the precast beam only when the spraying stops. The specific method can be that all the nozzles 3 stop at the same time, or part of the nozzles 3, such as adjacent nozzles 3, stop intermittently, thereby reducing or even canceling the above-mentioned error compensation step, and the present technical solution is not limited to this.

[0043] Through the above method, real-time, all-round and rapid abnormal inspection of precast beams can be carried out without stopping the maintenance process, and timely warning can be given when the precast beams are about to become unqualified, thereby effectively preventing the situation where the final precast beams are unqualified due to deficiencies in the current maintenance process.

[0044] Furthermore, the real-time spray parameter information in step S23 is the spray parameter information of the nozzle 3 in the outer mold 7 .

[0045] As an optional implementation scheme of the present invention, in actual situations, when the infrared camera 2 acquires the initial infrared thermal image of the precast beam, there may be a situation where spraying is being carried out in the outer mold 7, which will directly affect the acquisition of the initial infrared thermal image, and the impact is greater, resulting in a large regional change in the overall temperature distribution diagram. Then, by compensating the initial infrared thermal image with the spray parameter information in the outer mold 7, the influence of the spray factor in the outer mold 7 on the overall temperature distribution diagram of the precast beam can be reduced. Among them, the specific compensation method can be: Temperature near nozzle 3 Replace the temperature where the nozzle 3 is located ; Alternatively, the temperature value of the water channel in the outer mold 7 and the range of the water channel may be replaced by the temperature value collected by the temperature sensor at the outlet of the nozzle 3; this technical solution does not make any specific limitation to this.

[0046] Through the above method, the influence of the spraying operation in the outer mold 7 during the curing process on the collection of the overall temperature distribution map of the precast beam is further reduced, the accuracy of the collection of the overall temperature distribution map is improved, and the misjudgment rate is reduced.

[0047] Further, when an abnormality occurs in the overall temperature distribution diagram, S3 generates an adjustment instruction including: S31, receiving spray status information, including the current maintenance process, the standard temperature distribution map corresponding to the current maintenance process, and the standard temperature threshold; S32, when an abnormal area appears in the overall temperature distribution map, obtaining first temperature information of the abnormal area; S33, judging whether there is an abnormality according to the standard temperature threshold and the first temperature information; S34. When it is determined that there is an abnormality, an adjustment instruction is generated.

[0048] As an optional implementation scheme of the present invention, the standard temperature value in each curing process and at each time node is different. After the current curing process has been applied for a long time, the temperature value that the precast beam should present at each time point has been standardized. Then, the standard temperature distribution diagram and the corresponding standard error (i.e., the above-mentioned standard temperature threshold) corresponding to the precast beam at each time point can be reversely generated. During the curing process, the collected overall temperature distribution diagram is matched in real time, so that it is possible to quickly check whether there are abnormalities in the curing process of the precast beam. When an abnormal area appears in the overall temperature distribution diagram (for example, the color of a certain area is different from the surrounding area), the technical solution first obtains the actual temperature value of the abnormal area and matches it with the standard temperature threshold to preliminarily verify whether there is a misjudgment. Only when the actual temperature value exceeds the standard temperature threshold will the spray parameters in the curing process be adjusted.

[0049] Through the above method, a large number of abnormal misjudgments caused by inaccurate temperature detection by the infrared camera 2 can be avoided, ensuring the smooth progress of the maintenance process.

[0050] Further, S4 adjusts the humidity and temperature in the curing room 1 and the humidity and temperature of the precast beam in real time according to the adjustment instruction, including: S41, receiving second temperature information, position information and specification information of the abnormal area according to the adjustment instruction; the specification information includes the shape and area of ​​the abnormal area; S42, matching the nozzle 3 at the corresponding position in the curing room 1 according to the position information; S43, adjusting the spray power and spray angle according to the specification information, and adjusting the spray temperature according to the temperature information.

[0051] As an optional implementation scheme of the present invention, as mentioned above, there are generally multiple nozzles 3 in the curing room 1, and the positions and spraying angles are different. Then, after an abnormal area appears in the precast beam, the spraying parameters of the corresponding nozzle 3 can be adjusted according to the difference between the actual temperature of the abnormal area and the standard temperature, so as to spray the abnormal area in a targeted manner to quickly restore the temperature of the abnormal area to the standard temperature value, thereby avoiding the quality of the abnormal area from continuing to deteriorate and affecting the final quality of the finished product.

[0052] Through the above method, a solution is provided to specifically solve the problem of temperature failure in the area of ​​precast beams during the curing process, thereby avoiding the impact of continued deterioration of the quality of the area on the final product quality.

[0053] Further, when S34 determines that there is an abnormality, generating an adjustment instruction includes: S341, generating a detection instruction when it is determined that there is an abnormality, and marking the location information of the abnormal area; S342, according to the detection instruction, matching the infrared sensor 4 corresponding to the position information in the curing room 1, and adjusting the angle of the infrared sensor 4 according to the position information so that the infrared sensor 4 points to the abnormal area; S343, obtaining second temperature information of the abnormal area through the infrared sensor 4; S344, generating a temperature numerical gradient map of the abnormal area according to the second temperature information; S345, comparing the temperature numerical gradient diagram with the standard temperature distribution diagram to determine whether cracks and holes appear in the precast beam; S346. When no cracks or holes appear, it is determined that there is no defect abnormality and an adjustment instruction is generated.

[0054] As an optional implementation scheme of the present invention, as mentioned above, the temperature collected by the infrared camera 2 is not accurate enough, then according to the actual position of the abnormal area, the infrared sensor 4 that can detect the temperature of the abnormal area can be called to perform more accurate temperature detection on the area. Similarly, this scheme is also based on not stopping the maintenance process, so it is possible to achieve targeted temperature detection and processing of the abnormal position on the prefabricated beam without affecting the maintenance process, so that the spray parameter adjustment is more accurate, thereby improving the qualified rate of prefabricated beams and the quality of finished products.

[0055] Through the above method, targeted temperature detection and treatment of abnormal positions on prefabricated beams can be achieved without affecting the maintenance process, making the spray parameter adjustment more accurate, thereby improving the qualification rate of prefabricated beams and the quality of finished products.

[0056] Furthermore, S34 also includes: S347: When cracks or holes appear, it is determined to be a defect and an abnormality, and a maintenance suspension instruction is generated; S348, suspending the steaming process according to the curing suspension instruction; S349, transmitting an ultrasonic signal to the prefabricated beam through the ultrasonic detector 5, and receiving a signal reflected by the prefabricated beam; S3410, confirming the presence or absence of cracks or holes based on the signal reflected by the prefabricated beam; S3411: If it is confirmed that there is no defect, go to step S346; if it is confirmed that there is a defect, generate a repair instruction and report it, and report the location information of the abnormal area at the same time; S3412. After the precast beam is repaired, repeat step S2.

[0057] As an optional implementation scheme of the present invention, in some cases, for example, due to cracks or holes that have appeared before the maintenance process, or due to errors in the detection of the infrared camera 2 or the infrared sensor 4 during the maintenance process, the spray parameters cannot be adjusted in time or the adjustment is not delicate enough, which eventually leads to the prefabricated beam being unqualified. In this case, this feature can be reflected in the temperature numerical gradient map generated by the infrared sensor 4 for the abnormal area. However, as is well known, the infrared sensor 4 is not very accurate in detecting cracks and holes, so the maintenance process can be temporarily suspended, and the ultrasonic radar detection method (i.e., the ultrasonic detector 5 mentioned above) is used to perform ultrasonic detection on the prefabricated beam to accurately verify whether cracks and holes have appeared in the prefabricated beam. When it is confirmed that cracks or holes have appeared, the repair instructions and the location information of the abnormal area can be automatically reported, so that the construction personnel can quickly find the location of the cracks or holes for repair operations. In this way, the deficiency that all existing prefabricated beams can only be repaired after the maintenance work is completed can be avoided. Therefore, a lot of time waste can be saved, which is conducive to improving the construction efficiency of the current smart road and bridge.

[0058] Through the above method, it is possible to further verify whether the prefabricated beams are unqualified during the maintenance process, and to issue an alarm more accurately to remind construction personnel to make repairs quickly, greatly reducing the waste of prefabricated beam production time.

[0059] Furthermore, after the adjustment instruction is generated in step S346, the following steps are further included: Process the temperature numerical gradient map to obtain the specification information of the abnormal area.

[0060] As an optional implementation scheme of the present invention, as mentioned above, the premise for generating the adjustment instruction is that there are no cracks and holes in the abnormal area, but the specification parameters obtained by the infrared camera 2 are not ideal, and the temperature numerical gradient map obtained by the infrared sensor 4 is more accurate, so the shape and area of ​​the abnormal area collected by the infrared sensor 4 should be adopted, so that the adjusted spray parameters will be more accurate.

[0061] Through the above method, the adjustment of the spraying parameters can be more accurate when abnormalities occur in the prefabricated beam during the maintenance process, thereby improving the finished product quality of the prefabricated beam.

[0062] Furthermore, after confirming the defect in step S3411, the process further includes: Obtain the size, shape and direction of cracks and / or holes; Calculate the amount of consumables needed to repair the cracks and / or holes based on their size, shape and orientation.

[0063] As an optional implementation scheme of the present invention, the temperature numerical gradient map obtained by the infrared sensor 4 can reflect the size, shape and direction of the cracks and / or holes to a certain extent. The ultrasonic detector 5 can further determine the depth and various parameters of the abnormal area, so the amount of consumables required for repair can be preliminarily calculated to avoid waste of consumables.

[0064] Through the above method, it is convenient for construction personnel to carry out repair work better and reduce the waste of consumables.

[0065] Further, step S3 also includes S35, calibrating the temperature distribution diagram when it is determined that there is no abnormality, including: S351, generating a calibration instruction when it is determined that there is no abnormality; S352, obtaining location information of the abnormal area according to the calibration instruction; S353, calling the infrared sensor 4 corresponding to the abnormal area according to the position information to obtain second temperature information of the abnormal area; S354. Calibrate the temperature distribution map according to the second temperature information of the abnormal area.

[0066] As an optional implementation scheme of the present invention, as mentioned above, the temperature distribution map collected by the infrared camera 2 is not accurate enough, so there may be a possibility of misjudgment. However, when the infrared sensor 4 finds that the abnormal area does not need to be adjusted after further accurate detection, the temperature value collected by the infrared sensor 4 can be directly used to compensate the temperature distribution map collected by the infrared camera 2. Therefore, the longer the entire maintenance process is used, the less likely it is to have misjudgment.

[0067] By means of the above method, the feasibility of the steaming method is further improved.

[0068] Furthermore, the ultrasonic detector 5 is arranged in the inner mold 8, and the inner mold 8 is provided with electric baffles 6 at the transmitting end and the receiving end of the ultrasonic detector 5. When the maintenance process is suspended, the electric baffles 6 are removed to cover the ultrasonic detector 5.

[0069] As an optional implementation scheme of the present invention, the electric baffle 6 is mainly used to prevent water mist leakage during steaming of prefabricated beams, and also to avoid the ultrasonic detector 5 being affected. The specific structure and implementation scheme of the electric baffle 6 are not specifically limited in this technical scheme. As long as the maintenance suspension instruction is received, the inner mold 8 will be automatically opened, thereby facilitating the ultrasonic detector 5 to accurately detect the prefabricated beams.

[0070] Through the above method, it is ensured that the ultrasonic detector 5 can work normally, and at the same time, the implementation of the maintenance process is not affected.

[0071] Furthermore, the spray head 3 includes a spray head arranged on the inner wall of the curing chamber 1 and a nozzle or a water outlet arranged in the mold.

[0072] As an optional implementation scheme of the present invention, the technical scheme further limits the application conditions of the steam-curing method. Since the existing curing processes have certain differences, these curing processes with certain differences are not necessarily suitable for the present technical scheme. Although the method of having a nozzle 3 on the inner wall of the curing chamber 1 and in the mold is already an existing scheme, it is obviously higher in curing efficiency. Combined with the present steam-curing method, it is also more conducive to the rapid and accurate adjustment of the spray parameters, so the curing efficiency will be higher.

[0073] Through the above method, the maintenance efficiency of the existing maintenance process can be further improved.

[0074] The working principle and use process of the present invention: After the precast beam completes the static stop period, it is connected to the inner mold 8 and sent to the outer mold 7 in the curing room 1 for steam curing. At each stage of the steam curing process, the defects of the precast beam are monitored in real time. When an abnormality appears in the real-time overall temperature distribution diagram of the precast beam, it is uploaded to the control system, so as to adjust the various parameters of the curing process, so that the various steam curing parameters in the curing process can be adjusted in real time based on the actual situation of the precast beam. Whether the precast beam is about to or has already failed to meet the requirements, it can be warned in time and the curing process can be accurately adjusted. Therefore, without the need for additional manpower, the qualified rate of the current precast beam curing process can be significantly improved, and a large amount of resources and manpower waste caused by failure can be greatly reduced.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steaming method for smart road and bridge prefabricated beams, characterized in that: include: S1. Steam-curing the prefabricated beams in a curing room; S2. Real-time acquisition of the overall temperature distribution diagram of the precast beam at each stage of the steam curing process; S3, generating an adjustment instruction when an abnormality occurs in the overall temperature distribution diagram; S4. Adjust the humidity and temperature in the curing room and the humidity and temperature of the precast beams in real time according to the adjustment instructions.

2. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 1, characterized in that: The S2 real-time acquisition of the overall temperature distribution diagram of the precast beam in each stage of the steam curing process includes: S21, using an infrared camera located in the middle of the top wall of the curing room to monitor the entire precast beam in real time and generate an initial infrared thermal image; S22, receiving real-time spray parameter information during the maintenance process, including spray position and spray temperature; S23, performing error compensation on the initial infrared thermal image according to the real-time spray parameter information to generate an overall temperature distribution map.

3. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 2, characterized in that: The step S3 generates an adjustment instruction when an abnormality occurs in the overall temperature distribution diagram, including: S31, receiving spray status information, including the current maintenance process, the standard temperature distribution map corresponding to the current maintenance process, and the standard temperature threshold; S32, when an abnormal area appears in the overall temperature distribution map, obtaining first temperature information of the abnormal area; S33, judging whether there is an abnormality according to the standard temperature threshold and the first temperature information; S34: When it is determined that there is an abnormality, the adjustment instruction is generated.

4. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 3, characterized in that: The step S4 adjusts the humidity and temperature in the curing room and the humidity and temperature of the prefabricated beam in real time according to the adjustment instruction, including: S41, receiving second temperature information, position information and specification information of the abnormal area according to the adjustment instruction; the specification information includes the shape and area of ​​the abnormal area; S42, matching the nozzles at corresponding positions in the curing room according to the position information; S43, adjusting the spray power and the spray angle according to the specification information, and adjusting the spray temperature according to the temperature information.

5. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 4, characterized in that: When the S34 determines that there is an abnormality, generating an adjustment instruction includes: S341, generating a detection instruction when it is determined that there is an abnormality, and marking the location information of the abnormal area; S342, matching the infrared sensor in the maintenance room corresponding to the position information according to the detection instruction, and adjusting the angle of the infrared sensor according to the position information so that the infrared sensor points to the abnormal area; S343, obtaining second temperature information of the abnormal area through the infrared sensor; S344, generating a temperature numerical gradient map of the abnormal area according to the second temperature information; S345, comparing the temperature numerical gradient map with the standard temperature distribution map to determine whether cracks and holes appear in the prefabricated beam; S346. When the cracks or holes do not appear, it is determined that there is no defect abnormality and the adjustment instruction is generated.

6. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 5, characterized in that: The S34 further includes: S347, when the cracks or holes appear, it is determined to be a defect abnormality, and a maintenance suspension instruction is generated; S348, suspending the steaming process according to the curing suspension instruction; S349, transmitting an ultrasonic signal to the prefabricated beam through an ultrasonic detector, and receiving a signal reflected by the prefabricated beam; S3410, confirming the presence or absence of cracks or holes according to the signal reflected by the prefabricated beam; S3411, when it is confirmed that there is no defect, proceed to step S346; when it is confirmed that there is a defect, generate a repair instruction and report it, and report the location information of the abnormal area at the same time; S3412. After the precast beam is repaired, repeat step S2.

7. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 5, characterized in that: After the adjustment instruction is generated in step S346, the following further steps are included: The temperature numerical gradient map is processed to obtain specification information of the abnormal area.

8. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 7, characterized in that: After the defect is confirmed in step S3411, the following steps are further included: Obtaining the size, shape and direction of the cracks and / or holes; The amount of consumables required for repairing is calculated based on the size, shape and direction of the cracks and / or holes.

9. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 8, characterized in that: The ultrasonic detector is arranged in the inner mold, and the inner mold is provided with electric baffles at the transmitting end and the receiving end of the ultrasonic detector. When the maintenance process is suspended, the electric baffles are removed to block the ultrasonic detector.

10. The method for steaming and curing the prefabricated beams for intelligent road and bridge according to claim 1, characterized in that: The spray head comprises a spray head arranged on the inner wall of the curing chamber and a nozzle or a water outlet arranged in the mold.

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