A spray health control method and system for anti-collision guardrail

Abstract

The present invention relates to the technical field of highway engineering construction, and in particular to a control method and system for spraying and curing of an anti-collision guardrail, comprising: S10: installing a spraying device, setting a reference humidity H_b, a reference temperature T_b and an initial spraying period length Δt0; S20: collecting humidity H and temperature T; S30: calculating a spraying factor AF; S40: calculating a spraying period length Δt=Δt0×(1-AF) and a spraying amount Vf in a spraying period; S50: according to the spraying period length and the spraying amount, the spraying device completes a process of spraying from an initial end of the anti-collision guardrail and moving to an end end at a uniform speed in a spraying period; S60: after a spraying period ends, the spraying device stops spraying, moves back to the initial end and returns to step S20; if the set anti-collision guardrail curing period ends, the spraying stops after the current spraying period is completed; the present invention effectively improves the spraying and curing quality and efficiency of the anti-collision guardrail.

Description

Technical Field

[0001] The invention relates to the technical field of highway engineering construction, and in particular to a spray curing control method and system suitable for anti-collision guardrails. Background Art

[0002] With the rapid development of road construction and the continuous increase in traffic flow, the maintenance of anti-collision guardrails, as an important part of highway traffic safety, is particularly important; spray curing, as an effective maintenance method, can maintain the moisture of anti-collision guardrails and promote the hydration reaction during the hardening process of concrete, thereby improving its structural integrity and service life.

[0003] Traditional spray curing methods often rely on manual experience, and there are problems such as high labor input, large waste of water resources, inadequate and discontinuous maintenance, etc. It is difficult to ensure the uniformity of spraying, resulting in common quality problems; and the existing spraying equipment cannot automatically adjust the spraying strategy according to changes in environmental conditions, and can only spray a fixed amount of water, which can easily cause cracks on the surface of the anti-collision guardrail. If too much water is sprayed, it will also affect the strength of the concrete, resulting in a waste of water resources and reducing the efficiency of the maintenance of the anti-collision guardrail.

[0004] The invention aims to solve the problems existing in the traditional spray maintenance of anti-collision guardrails. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a method and system for controlling the spraying and curing of anti-collision guardrails, which improves the curing quality of anti-collision guardrails by adjusting the spraying period and the spraying amount.

[0006] According to a first aspect of the present invention, there is provided a method for controlling spraying and curing of an anti-collision guardrail, comprising the following steps:

[0007] S10: Install the spraying equipment, set the reference humidity H_b, reference temperature T_b and initial spraying period Δt0;

[0008] S20: Collect the humidity H and temperature T of the current environment;

[0009] S30: Calculate the spray factor AF according to the value of the reference humidity H_b, the value of the reference temperature T_b, the value of the humidity H and the value of the temperature T; the calculation of the spray factor AF is specifically as follows:

[0010] AF = Kh × (H_b-H) + Kt × (T-T_b);

[0011] Among them, Kh is the set humidity influence coefficient, which is a fixed value set manually; Kt is the set temperature influence coefficient, which is a fixed value set manually;

[0012] S40: Calculate the duration of the spraying period Δt=Δt0×(1-AF), and calculate the spraying volume Vf in one spraying period;

[0013] S50: According to the spraying period duration Δt and the spraying volume Vf, the spraying equipment completes the process of spraying from the initial end of the anti-collision guardrail and moving at a uniform speed to the end end within one spraying period;

[0014] S60: After a spraying period ends, the spraying device stops spraying, moves back to the initial end, and returns to step S20; if the set anti-collision guardrail maintenance period ends, the spraying stops after the current spraying period is completed.

[0015] Furthermore, in step S40, the calculation of the spraying amount Vf is specifically as follows:

[0016] Set the initial water spraying rate of the spraying equipment to Q0 liters / minute;

[0017] Calculate the total initial spray volume of a spray period V = Q0 × Δt × 60;

[0018] Finally, the spray volume Vf=V×(1+k×AF) is calculated;

[0019] Among them, k is the set spray volume influence coefficient, which is an artificially set constant value.

[0020] Furthermore, step S20 also includes determining whether it is strong wind weather or rainy weather, and reminding the staff.

[0021] Furthermore, by combining the collected wind speed with the weather forecast, it is determined whether it is strong wind weather; in strong wind weather, the duration of the spraying period Δt is changed to Δtf=Δt0×(1-AF+Kf); the spraying volume is changed to Vff=V×(1+AF-Kf);

[0022] Wherein, Kf is the strong wind adjustment coefficient set according to the wind speed intensity.

[0023] Furthermore, whether it is rainy weather is determined by combining the collected rainfall with the weather forecast; when it is rainy weather, the spraying activity is suspended, the spraying equipment moves to the initial end and stops the spraying work.

[0024] Further, in step S60, after a spraying period is completed, when the spraying device moves to the initial end, the surface humidity and temperature of the anti-collision guardrail at the end end, the midpoint and the initial end are detected to determine the spraying effect;

[0025] The midpoint is the midpoint of the length of the anti-collision guardrail between the end end and the start end.

[0026] Furthermore, in step S60, the spraying effect is determined as follows:

[0027] The humidity value at the end is recorded as hj, and the temperature value is recorded as tj; the humidity value at the initial end is recorded as hc, and the temperature value is recorded as tc; the humidity value at the midpoint is recorded as hz, and the temperature value is recorded as tz;

[0028] Calculate hm=(hj+hc) / 2; tm=(tj+tc) / 2;

[0029] Then determine whether |hm-hz|≤5 and |tm-tz|≤5;

[0030] If the judgment conditions are met, the spraying effect is up to standard; if the judgment conditions are not met, the spraying effect is not up to standard and the spraying factor is adjusted.

[0031] Further, in step S60, if the spraying effect does not meet the standard, the spraying factor is adjusted as follows:

[0032] Let hs = hm-hz; ts = tm-tz;

[0033] Construct AFs=Kh×(H_b-H+hs)+Kt×(T-T_b-ts); substitute the value of AFs for AF in the calculation.

[0034] According to a second aspect of the present invention, there is also provided a control system for spraying and maintaining health for anti-collision guardrails, comprising:

[0035] Acquisition module: used to collect various data; including humidity sensor, temperature sensor, wind speed sensor and rain gauge; collect weather forecast results;

[0036] Control module: used to receive and issue instructions; control the action of the spray equipment;

[0037] Detection module: calculates the spray factor, spray period duration Δt and spray volume Vf to determine whether the spray effect meets the standard;

[0038] Spraying equipment: includes a spray head for spraying liquid; includes a moving component for driving the movement of the spraying equipment; includes a water tank for storing liquid and reminding staff when the water level is insufficient.

[0039] The beneficial effects of the present invention are as follows: the present invention achieves the control of the spray curing process by automatically collecting various data and dynamically adjusting the spraying period and spraying amount according to these data, combined with the influence of weather conditions, and after the spraying is completed, the spraying factor is adjusted according to feedback, and finally the uniformity and efficiency of the spraying are achieved, which is beneficial to improving the maintenance quality and structural integrity of the anti-collision guardrail, and effectively solves the problems of water resource waste and discontinuous maintenance in traditional spray curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 Schematic diagram of the steps of the spray curing control method for anti-collision guardrails in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] like Figure 1 The spray curing control method for anti-collision guardrail shown includes the following steps:

[0046] S10: Install the spraying equipment at the initial end to ensure that it can slide smoothly on the guardrail; adjust the angle and direction of the spray head according to the area to be sprayed to ensure that the water spray can cover the target area; set the reference humidity H_b, reference temperature T_b and the initial spraying period Δt0;

[0047] S20: Before starting the spraying period, the humidity H and temperature T of the current environment are collected for subsequent calculation of the spraying period duration Δt and spraying volume Vf required for each spraying period;

[0048] S30: Calculating a spray factor AF according to the value of the reference humidity H_b, the value of the reference temperature T_b, the value of the humidity H and the value of the temperature T;

[0049] S40: Calculate the duration of the spraying period Δt=Δt0×(1-AF), and calculate the spraying volume Vf in one spraying period;

[0050] S50: spraying starts. According to the spraying period duration Δt and the spraying volume Vf, the spraying equipment completes the process of spraying from the initial end of the anti-collision guardrail and moving at a constant speed to the end end within one spraying period, so that the spraying is evenly distributed, avoiding the situation where some areas are too wet or too dry, which helps to improve the maintenance quality of the anti-collision guardrail;

[0051] S60: After a spraying period ends, the spraying equipment stops spraying, moves back to the initial end, and returns to step S20; if the set anti-collision guardrail maintenance period ends (that is, the number of spraying periods reaches the set number), spraying stops after the current spraying period is completed.

[0052] In step S30, the spray factor AF is calculated as follows:

[0053] AF = Kh × (H_b-H) + Kt × (T-T_b);

[0054] Among them, Kh is the set humidity influence coefficient, which is a fixed value set manually; Kt is the set temperature influence coefficient, which is a fixed value set manually;

[0055] Under the above calculation method, when the current humidity is too low and the temperature is too high, AF will be a positive number, which will reduce the calculation result of the spray period length Δt and shorten the time used for one spray period, which is equivalent to more frequent spraying, thus achieving the effect of increasing humidity and lowering temperature. When the current humidity is too high and the temperature is too low, AF will be a negative number, and the calculation result of the spray period length Δt will increase, and the time used for one spray period will increase, which is equivalent to a lower spraying frequency, thus achieving the effect of lowering humidity and increasing temperature, so that the anti-collision guardrail will not have a low strength due to excessive moisture.

[0056] By calculating the difference between the current humidity H and temperature T of the environment and the reference humidity H_b and reference temperature T_b before each spraying period, the spraying factor AF is dynamically adjusted each time to lay a foundation for the calculation of the subsequent spraying period duration Δt and spraying volume Vf.

[0057] In step S40, the calculation of the spraying amount Vf is specifically as follows:

[0058] Set the initial water spraying volume of the spraying equipment to Q0 liters per minute, where Q0 is the water spraying volume set by the spraying equipment under the most ideal environmental conditions;

[0059] Calculate the total initial spray volume of a spray period V = Q0 × Δt × 60; 60 here represents 60 minutes per hour; the unit of the spray period duration Δt is hours;

[0060] Finally, the spray volume Vf=V×(1+k×AF) is calculated;

[0061] Among them, k is the influence coefficient of the set spray volume Vf, which is a fixed value set artificially;

[0062] The spraying volume Vf is affected by the spraying period length Δt and the spraying factor AF, and cooperates with the spraying period length Δt to complete the uniform spraying work within a spraying period; the spraying equipment can adjust the water volume and the number of nozzles opened for spraying according to the spraying volume Vf and the spraying period length Δt, so that the water spraying volume per minute of the spraying equipment is updated to Q=Vf / (60×Δt).

[0063] By adjusting the spray volume Vf, the humidity and temperature on the surface of the anti-collision guardrail can be maintained within an appropriate range under different environmental conditions, which helps the hardening process of concrete or other materials, ensures the quality of maintenance, and improves the utilization efficiency of water resources.

[0064] Step S20 also includes determining whether it is strong wind weather or rainy weather, and reminding the staff to prevent the adverse weather conditions from affecting the spray curing process, ensure the spraying effect, and reduce resource waste.

[0065] Refer to international or national standards, set the standard threshold of strong wind level according to local climate conditions and maintenance requirements; judge whether the threshold is exceeded by combining the collected wind speed with the weather forecast, and judge the level of strong wind weather when the threshold is exceeded; in strong wind weather, the duration of the spraying period Δt is changed to Δtf=Δt0×(1-AF+Kf); the spraying volume Vf is changed to Vff=V×(1+AF-Kf);

[0066] Among them, Kf is the strong wind adjustment coefficient set according to the wind speed intensity. The greater the wind force, the greater the value of Kf. The specific calculation method of Kf can be an artificially set reference table or a constructed empirical function.

[0067] In strong wind weather, wind will have a negative impact on the spraying effect; the strong wind adjustment coefficient is set according to the wind speed intensity to adjust the spraying period Δt and the spraying volume Vf to achieve the purpose of improving the spraying effect and reducing the impact of wind; and under extreme conditions, when the wind level is too high, the water cannot be sprayed onto the anti-collision guardrail. At this time, the spraying volume Vff will be reduced to 0 or even a negative number. Then, when Vff is 0 or a negative number, the spraying work needs to be stopped to ensure the effective use of resources and protect the safety of equipment and personnel.

[0068] By combining the collected rainfall with the weather forecast, it is determined whether it is rainy weather. Sometimes the weather forecast is not accurate. It is more accurate to combine the actual rainfall collection to comprehensively determine whether it is rainy weather. When it is rainy weather, the spraying activity is suspended and the spraying equipment is moved to the initial end.

[0069] In rainy weather, natural precipitation has provided enough humidity. Continuing to spray will lead to a waste of water resources and may also reduce the maintenance quality of the anti-collision guardrail due to excessive spraying. When it is judged that rainy weather is coming, the spraying equipment will move to the initial end autonomously and stop spraying, which also reduces manual intervention and reduces the risk of workers operating outdoors in bad weather.

[0070] In step S60, after a spraying period is completed, when the spraying device moves to the initial end, the surface humidity and temperature of the anti-collision guardrail at the end end, the midpoint and the initial end are detected to determine the spraying effect;

[0071] Among them, the midpoint is the midpoint of the length of the anti-collision guardrail between the end end and the initial end;

[0072] By detecting the humidity and temperature at three representative locations to judge the spraying effect, the workload is reduced compared to judging by conventional means; it helps to provide real-time feedback on whether the spraying has achieved the expected effect. If it has not achieved the expected effect, subsequent work can be used to make adjustments to ensure the quality of the spraying health care.

[0073] In step S60, the spraying effect is determined as follows:

[0074] The humidity value at the end is recorded as hj, and the temperature value is recorded as tj. Since the end has just been sprayed, it can be regarded as the surface state of the guardrail without evaporation loss; the humidity value at the initial end is recorded as hc, and the temperature value is recorded as tc. Since it is the first to be sprayed, the surface state of the guardrail after the complete evaporation loss can be seen; the humidity value at the midpoint is recorded as hz, and the temperature value is recorded as tz. This is the point where the spraying is completed in the middle period, and its surface state is the surface state of the guardrail after half of the evaporation loss.

[0075] Calculate the average humidity and average temperature at the end and the start: hm=(hj+hc) / 2; tm=(tj+tc) / 2;

[0076] hm and tm can be used to calculate the surface state of the crash barrier at the midpoint in theory under this environment, and then by comparing the theoretical state with the actual state of the midpoint (i.e. the humidity and temperature measured at the midpoint), it can be determined whether |hm-hz|≤5 and |tm-tz|≤5;

[0077] If the judgment conditions are met, it means that this spraying can offset the evaporation loss, and the spraying effect is up to standard. Under the current environment, the spraying is evenly distributed, which can effectively maintain the anti-collision guardrail; if the judgment conditions are not met, it means that the evaporation situation at the middle point is similar to that at the initial end. This phenomenon can only be caused by excessive evaporation loss, that is, the amount of water sprayed this time is too small, then the spraying effect is not up to standard, and the anti-collision guardrail cannot be effectively maintained, then it is necessary to adjust the next spraying factor to improve the spraying quality.

[0078] In step S60, the spraying effect is not up to standard, and the spraying factor is adjusted as follows:

[0079] Let hs = hm-hz; ts = tm-tz;

[0080] Construct AFs=Kh×(H_b-H+hs)+Kt×(T-T_b-ts); substitute the value of AFs for AF in subsequent calculations.

[0081] The failure of the spraying effect to meet the standard indicates that the evaporation loss is too large, that is, the amount of water sprayed this time is too small. The humidity difference hs is added to (H_b-H) to achieve the effect of increasing the baseline humidity, thereby increasing the difference between the baseline humidity and the current ambient humidity; similarly, using (T-T_b) minus the temperature difference ts will also achieve the effect of lowering the baseline temperature, thereby increasing the difference between the current ambient temperature and the baseline temperature. In this way, the difference between the average temperature and humidity and the midpoint temperature and humidity can be used to compensate and adjust the spray factor AF, which will increase the value of AFs, i.e. the spray factor AF, and then the spray period length Δt will be reduced, and the spray volume Vf will become larger, which will achieve the effect of increasing the spray frequency and spray volume, so that the next spray can offset the evaporation loss. The above process can timely correct the spray period length Δt and the spray volume Vf, and improve the health quality and spray effect of the anti-collision guardrail.

[0082] According to a second aspect of the present invention, there is also provided a control system for spraying and maintaining health for anti-collision guardrails, comprising:

[0083] Collection module: used to collect various data; including humidity sensor for collecting ambient humidity, temperature sensor for collecting ambient temperature, wind speed sensor for detecting wind force and rain gauge for collecting rainfall; collect weather forecast results;

[0084] Control module: used to receive and issue instructions; control the action of the spray equipment;

[0085] Detection module: calculates the spray factor, spray period and spray volume Vf, and determines whether the spray effect meets the standard;

[0086] Spraying equipment: including a spray head, multiple spray heads can be installed, and the number of spray heads to be used for spraying is selected according to the spraying volume Vf and the spraying period duration Δt, so that the spray liquid can be evenly sprayed on the anti-collision guardrail; including a moving component for driving the spraying equipment to move back and forth on the anti-collision guardrail; including a water tank for storing liquid and reminding staff when the water level is insufficient; of course, in some embodiments, the system can also be controlled so that the water tank automatically goes to the set water replenishment point for water replenishment when the water level is insufficient.

[0087] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for controlling the spraying and curing of anti-collision guardrails, characterized in that: The following steps are involved: S10: Install the spraying equipment, set the reference humidity H_b, reference temperature T_b and initial spraying period Δt0; S20: Collect the humidity H and temperature T of the current environment; S30: Calculate the spray factor AF according to the value of the reference humidity H_b, the value of the reference temperature T_b, the value of the humidity H and the value of the temperature T; the calculation of the spray factor AF is specifically as follows: AF = Kh × (H_b-H) + Kt × (T-T_b); Among them, Kh is the set humidity influence coefficient, which is a fixed value set manually; Kt is the set temperature influence coefficient, which is a fixed value set manually; S40: Calculate the duration of the spraying period Δt=Δt0×(1-AF), and calculate the spraying volume Vf in one spraying period; The calculation of the spray volume Vf is as follows: Set the initial water spraying rate of the spraying equipment to Q0 liters / minute; Calculate the total initial spray volume of a spray period V = Q0 × Δt × 60; Finally, the spray volume Vf=V×(1+k×AF) is calculated; Among them, k is the set spray volume influence coefficient, which is a fixed value set artificially; S50: According to the spraying period duration Δt and the spraying volume Vf, the spraying equipment completes the process of spraying from the initial end of the anti-collision guardrail and moving at a uniform speed to the end end within one spraying period; S60: After a spraying period ends, the spraying device stops spraying, moves back to the initial end, and returns to step S20; if the set anti-collision guardrail curing period ends, the spraying stops after the current spraying period is completed; After a spraying period is completed, the spraying equipment moves to the initial end, and detects the surface humidity and temperature of the anti-collision guardrail at the end, midpoint and initial end to judge the spraying effect; Among them, the midpoint is the midpoint of the length of the anti-collision guardrail between the end end and the initial end; The spraying effect is judged as follows: The humidity value at the end is recorded as hj, and the temperature value is recorded as tj; the humidity value at the initial end is recorded as hc, and the temperature value is recorded as tc; the humidity value at the midpoint is recorded as hz, and the temperature value is recorded as tz; Calculate hm=(hj+hc) / 2; tm=(tj+tc) / 2; Then determine whether |hm-hz|≤5 and |tm-tz|≤5; If the judgment conditions are met, the spraying effect is up to standard; if the judgment conditions are not met, the spraying effect is not up to standard and the spraying factor is adjusted; The spraying effect is not up to standard. The spraying factor is adjusted as follows: Let hs = hm-hz; ts = tm-tz; Construct AFs=Kh×(H_b-H+hs)+Kt×(T-T_b-ts); substitute the value of AFs for AF in the calculation.

2. The method for controlling spraying and curing of anti-collision guardrails according to claim 1 is characterized in that: Step S20 also includes determining whether it is strong wind weather or rainy weather, and reminding the staff.

3. The method for controlling spraying and curing of anti-collision guardrails according to claim 2 is characterized in that: By combining the collected wind speed with the weather forecast, it is determined whether it is strong wind weather; in strong wind weather, the duration of the spraying period Δt is changed to Δtf=Δt0×(1-AF+Kf); the spraying volume is changed to Vff=V×(1+AF-Kf); Among them, Kf is the strong wind adjustment coefficient set according to the wind speed intensity.

4. The method for controlling the spraying and curing of anti-collision guardrails according to claim 2 is characterized in that: By combining the collected rainfall with the weather forecast, it is determined whether it is rainy weather; when it is rainy weather, the spraying activity is suspended, the spraying equipment moves to the initial end and stops spraying.

5. A spray health control system suitable for anti-collision guardrails, characterized in that: The method for controlling the spraying and curing of anti-collision guardrails as claimed in any one of claims 1 to 4 comprises: Acquisition module: used to collect various data; including humidity sensor, temperature sensor, wind speed sensor and rain gauge; collect weather forecast results; Control module: used to receive and issue instructions; control the action of the spray equipment; Detection module: calculates the spray factor, spray period duration Δt and spray volume Vf to determine whether the spray effect meets the standard; Spraying equipment: includes a spray head for spraying liquid; includes a moving component for driving the movement of the spraying equipment; includes a water tank for storing liquid and reminding staff when the water level is insufficient.

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