Intelligent steel bar covering system

Through the intelligent steel bar coverage system, sensors and automatic control technology, the rainwater erosion problem of steel bars when stored outdoors is solved, automatic coverage is achieved, labor costs are reduced, construction management is improved, and the development of smart construction sites is promoted.

CN223256503UActive Publication Date: 2025-08-22中铁十七局集团建筑工程有限公司
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Patent Information

Application Number
CN202422331010.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-08-22
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

On construction sites, steel bars are easily rusted by rainwater when stored outdoors. The existing manual coverage method is time-consuming and labor-intensive and untimely, resulting in frequent corrosion problems of steel bars, affecting construction progress and cost.

Method used

An intelligent steel bar coverage system is designed, including duplex folding canopy, intelligent controller, water-impregnation sensor, diffuse reflection sensing sensor, acoustic and light alarm and other components. The sensor detects rainwater and obstacles, and automatically controls the expansion and closing of the canopy, combined with the power provided by asynchronous drive motor, to achieve automatic coverage.

Benefits of technology

The automation and intelligence of steel bar coverage have been realized, labor costs have been reduced, material management has been improved, construction civilization has been enhanced, and the construction of smart construction sites has been promoted.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor control, in particular to an intelligent steel bar covering system which solves the technical problems that time and labor are wasted when outdoor steel bars are covered manually, and the steel bars are rusted due to the fact that the covering is not timely. The device comprises a compound folding canopy, an intelligent controller, a water sensor, a diffuse reflection inductive sensor, an audible and visual alarm, a first thermal overload relay KH1, a second thermal overload relay KH2, a first contactor KM1, a second contactor KM2, a third contactor KM3, a fourth contactor KM4 and a knob switch SA. According to the utility model, steel bar raw material management can be protected in real time, the labor cost is saved, the material management and control level is improved, the construction civilization degree of the building industry is enhanced, and an intelligent construction technology is developed; the automatic opening of the canopy is realized, so that the management of the construction site is more intelligent and convenient, a certain foundation is laid for the construction of the intelligent construction site, and the development and transformation of the industry are promoted.
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Description

Technical Field

[0001] The utility model relates to the technical field of motor control, in particular to an intelligent steel bar covering system. Background Art

[0002] Many materials on construction sites are stored outdoors, especially rebar, a common component. Concrete structures are essential for rebar storage, and during the construction phase, large quantities of rebar are consumed, with a wide variety of types used. To facilitate daily construction needs, rebar is typically stored according to specifications and types, occupying a significant area. This outdoor storage is significantly affected by weather, especially in coastal areas where rainfall is abundant. To prevent rainwater erosion and rusting, proper rebar management is crucial. Because rebar is hoisted to processing stations using machinery such as tower cranes, fixed protective sheds are not feasible. Manual covering is often employed, which is labor-intensive and time-consuming, requiring multiple personnel to perform. Over time, due to negligence, inattention, and laziness, it's common for rebar to be left uncovered before leaving get off work. Rain at night can cause corrosion, requiring significant manpower and financial resources to address. Utility Model Content

[0003] In order to solve the technical defects that manual covering of outdoor steel bars is time-consuming and labor-intensive, and untimely covering may cause the steel bars to be exposed to rain and rust, the utility model provides an intelligent steel bar covering system.

[0004] The utility model provides an intelligent steel bar covering system, including a duplex folding rain shelter, an intelligent controller, a water immersion sensor, a diffuse reflection induction sensor, an audible and visual alarm, a first thermal overload relay KH1, a second thermal overload relay KH2, a first contactor KM1, a second contactor KM2, a third contactor KM3, a fourth contactor KM4 and a knob switch SA;

[0005] The main circuit of the duplex folding awning is provided with a first three-phase asynchronous drive motor M1 and a second three-phase asynchronous drive motor M2 for driving the awning to unfold or retract; the first three-phase asynchronous drive motor M1 is connected to the three-phase power line in sequence through the electric heating element of the first thermal overload relay KHI, the primary main contact of the first contactor KM1 and the first circuit breaker QF1. The primary main contacts of the second contactor KM2 are also connected in parallel to both ends of the primary main contact of the first contactor KM1. The first contactor KM1 is used to control the forward rotation of the first three-phase asynchronous drive motor M1. The second contactor KM2 is used to control the reverse rotation of the first three-phase asynchronous drive motor M1; the second three-phase asynchronous drive motor M2 is connected to the three-phase power line in sequence through the electric heating element of the second thermal overload relay KH2, the primary main contact of the third contactor KM3, and the second circuit breaker QF2. The primary main contacts of the fourth contactor KM4 are also connected in parallel to both ends of the primary main contact of the third contactor KM3. The third contactor KM3 is used to control the forward rotation of the second three-phase asynchronous drive motor M2, and the fourth contactor KM4 is used to control the reverse rotation of the second three-phase asynchronous drive motor M2;

[0006] The control circuit of the duplex folding awning includes a forward control sub-circuit, a reverse control sub-circuit, a main control circuit and a rain signal control circuit;

[0007] The forward control sub-circuit includes the normally open contact of the forward start button SF1, the normally closed contact of the reverse start button SF2, the normally closed auxiliary contact of the second contactor KM2, the normally closed auxiliary contact of the fourth contactor KM4, and the first red indicator light HR1, which are connected in series. The normally closed auxiliary contact of the first contactor KM1 is connected in parallel to both ends of the normally open contact of the forward start button SF1. The coil of the first contactor KM1 and the coil of the second contactor KM2 are respectively connected in parallel to both ends of the first red indicator light HR1.

[0008] The reverse control sub-circuit includes the normally open contact of the reverse start button SF2, the normally closed contact of the forward start button SF1, the normally closed auxiliary contact of the first contactor KM1, the normally closed auxiliary contact of the third contactor KM3, and the second red indicator light HR2, which are connected in series. The normally closed auxiliary contact of the second contactor KM2 is connected in parallel to both ends of the normally open contact of the reverse start button SF2. The coil of the second contactor KM2 and the coil of the fourth contactor KM4 are respectively connected in parallel to both ends of the second red indicator light HR2.

[0009] The main control circuit includes a normally closed stop button SS1, an obstacle signal control circuit, a normally closed auxiliary contact of the first thermal overload relay KHI, and a normally closed auxiliary contact of the second thermal overload relay KH2, which are connected in series. The main control circuit is connected in series between the live wire L and the neutral wire N. The knob switch SA is connected between the live wire L and the normally closed stop button SS1. The knob switch SA includes a manual control contact and an automatic control contact. The normally closed stop button SS1 is connected to the manual control contact of the knob switch SA. The obstacle signal control circuit is formed by the normally closed auxiliary contact of the first contactor KM1 and the normally closed auxiliary contact of the third contactor KM3 connected in parallel. The forward control sub-circuit and the reverse control sub-circuit are connected in parallel and then connected in series between the normally closed stop button SS1 and the obstacle signal control circuit.

[0010] The rain signal control circuit is formed by the normally open auxiliary contact of the first contactor KM1 and the normally open auxiliary contact of the third contactor KM3 in parallel. One end of the rain signal control circuit is connected between the normally open contact of the forward start button SF1 and the normally closed contact of the reverse start button SF2. The other end of the rain signal control circuit is connected to the automatic control contact of the knob switch SA.

[0011] The water immersion sensor and the diffuse reflection induction sensor are respectively connected to the signal input end of the intelligent controller, and the sound and light alarm is connected to the signal output end of the intelligent controller. The signal output end of the intelligent controller is respectively connected to the control terminal of the first contactor KM1 and the control terminal of the third contactor KM3 through relays.

[0012] The duplex folding awning, constructed from welded galvanized round pipe, is a crucial component of the entire system. The first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2, each 0.38kW, combine with a gearbox to form a drive unit that powers the duplex folding awning.

[0013] In the main circuit of the duplex folding awning, the primary main contacts of contactor KM1 are wired in the L1-L2-L3 phase sequence, while the primary main contacts of contactor KM2 are wired in the L3-L2-L1 phase sequence, thereby achieving forward and reverse rotation control of the first three-phase asynchronous drive motor M1. The primary main contacts of contactor KM3 are wired in the L1-L2-L3 phase sequence, while the primary main contacts of contactor KM4 are wired in the L3-L2-L1 phase sequence, thereby achieving forward and reverse rotation control of the second three-phase asynchronous drive motor M2.

[0014] Turn the rotary button SA to manual mode. At this time, the automatic mode is invalid. Press the forward start button SF1 normally open contact, the coil of the first contactor KM1 and the coil of the second contactor KM3 are energized, the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are closed, the first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2 rotate forward, and the first red indicator HR1 light is on; press the reverse start button SF2 normally open contact, the coil of the first contactor KM1 and the coil of the third contactor KM3 are de-energized, the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are disconnected, the coil of the second contactor KM2 and the coil of the fourth contactor KM4 are energized, the primary main contact of the second contactor KM2 and the primary main contact of the fourth contactor KM4 are closed, the first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2 reverse, and the second red indicator HR2 light is on.

[0015] Turn the rotary button SA to automatic mode. At this time, the manual mode is invalid. Once the water immersion sensor detects rain, it transmits the signal to the intelligent controller through the RS-485 protocol. After receiving the signal, the intelligent controller issues a control instruction to activate the coils of the first contactor KM1 and the third contactor KM3, and the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are closed, thereby starting the awning drive motor and automatically deploying the awning.

[0016] Whether in manual or automatic mode, obstacle detection uses the E3K-DS100M1 diffuse reflection induction sensor. During the automatic deployment of the awning, if the diffuse reflection induction sensor detects an obstacle, the diffuse reflection induction sensor transmits a signal to the intelligent controller. The controller controls the coils of the first contactor KM1 and the third contactor KM3 to lose power, and the awning stops deploying. At the same time, an alarm is sounded through the sound and light alarm to remind the staff to correct the obstacle in time.

[0017] Preferably, the live wire output end of the three-phase power line is connected to a main circuit breaker QF3. This arrangement makes electricity use safer.

[0018] Preferably, in the control circuit of the duplex folding awning, a fuse FU and a circuit breaker QS with a handle are connected between the live wire and the knob switch SA. This arrangement makes electricity use safer.

[0019] Preferably, the control circuit of the duplex folding awning further includes a white indicator light HW, one end of which is connected between the fuse FU and the circuit breaker QS with a handle, and the other end is connected to the neutral line N. This arrangement makes electricity use safer, and the white indicator light HW can be used to observe whether the power connection is normal.

[0020] Preferably, the water immersion sensor is installed on the outside of the duplex folding awning, and the diffuse reflection induction sensor is installed on the movable end of the duplex folding awning. This arrangement is structurally reasonable.

[0021] Preferably, the diffuse reflection induction sensor is connected to a WiFi module for sending obstacle information to a mobile terminal device. This arrangement facilitates remote reminders to staff for troubleshooting.

[0022] Compared with the existing technology, the technical solution provided by the utility model has the following technical effects: simple structure and easy control. The system adopts sensor technology, intelligent control technology, and wireless communication technology to provide real-time protection for the management of steel raw materials, greatly saving labor costs, improving the level of material management and control, enhancing the degree of civilized construction in the construction industry, and moving towards intelligent construction technology; it realizes the automatic opening of the awning, making the management of the construction site more intelligent and convenient, laying a certain foundation for the construction of smart construction sites, and promoting the development and transformation of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram of the main circuit structure of a duplex folding awning according to an embodiment of the present invention;

[0026] Figure 2 The figure is a schematic diagram of the control circuit structure of the duplex folding awning described in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In one embodiment, Figure 1 As shown, an intelligent steel bar covering system includes a duplex folding awning, an intelligent controller, a water immersion sensor, a diffuse reflection induction sensor, an audible and visual alarm, a first thermal overload relay KH1, a second thermal overload relay KH2, a first contactor KM1, a second contactor KM2, a third contactor KM3, a fourth contactor KM4 and a knob switch SA;

[0032] The main circuit of the duplex folding awning is provided with a first three-phase asynchronous drive motor M1 and a second three-phase asynchronous drive motor M2 for driving the awning to unfold or retract; the first three-phase asynchronous drive motor M1 is connected to the three-phase power line in sequence through the electric heating element of the first thermal overload relay KHI, the primary main contact of the first contactor KM1 and the first circuit breaker QF1. The primary main contacts of the second contactor KM2 are also connected in parallel to both ends of the primary main contact of the first contactor KM1. The first contactor KM1 is used to control the forward rotation of the first three-phase asynchronous drive motor M1. The second contactor KM2 is used to control the reverse rotation of the first three-phase asynchronous drive motor M1; the second three-phase asynchronous drive motor M2 is connected to the three-phase power line in sequence through the electric heating element of the second thermal overload relay KH2, the primary main contact of the third contactor KM3, and the second circuit breaker QF2. The primary main contacts of the fourth contactor KM4 are also connected in parallel to both ends of the primary main contact of the third contactor KM3. The third contactor KM3 is used to control the forward rotation of the second three-phase asynchronous drive motor M2, and the fourth contactor KM4 is used to control the reverse rotation of the second three-phase asynchronous drive motor M2;

[0033] The control circuit of the duplex folding awning includes a forward control sub-circuit, a reverse control sub-circuit, a main control circuit and a rain signal control circuit;

[0034] The forward control sub-circuit includes the normally open contact of the forward start button SF1, the normally closed contact of the reverse start button SF2, the normally closed auxiliary contact of the second contactor KM2, the normally closed auxiliary contact of the fourth contactor KM4, and the first red indicator light HR1, which are connected in series. The normally closed auxiliary contact of the first contactor KM1 is connected in parallel to both ends of the normally open contact of the forward start button SF1. The coil of the first contactor KM1 and the coil of the second contactor KM2 are respectively connected in parallel to both ends of the first red indicator light HR1.

[0035] The reverse control sub-circuit includes the normally open contact of the reverse start button SF2, the normally closed contact of the forward start button SF1, the normally closed auxiliary contact of the first contactor KM1, the normally closed auxiliary contact of the third contactor KM3, and the second red indicator light HR2, which are connected in series. The normally closed auxiliary contact of the second contactor KM2 is connected in parallel to both ends of the normally open contact of the reverse start button SF2. The coil of the second contactor KM2 and the coil of the fourth contactor KM4 are respectively connected in parallel to both ends of the second red indicator light HR2.

[0036] The main control circuit includes a normally closed stop button SS1, an obstacle signal control circuit, a normally closed auxiliary contact of the first thermal overload relay KHI, and a normally closed auxiliary contact of the second thermal overload relay KH2, which are connected in series. The main control circuit is connected in series between the live wire L and the neutral wire N. The knob switch SA is connected between the live wire L and the normally closed stop button SS1. The knob switch SA includes a manual control contact and an automatic control contact. The normally closed stop button SS1 is connected to the manual control contact of the knob switch SA. The obstacle signal control circuit is formed by the normally closed auxiliary contact of the first contactor KM1 and the normally closed auxiliary contact of the third contactor KM3 connected in parallel. The forward control sub-circuit and the reverse control sub-circuit are connected in parallel and then connected in series between the normally closed stop button SS1 and the obstacle signal control circuit.

[0037] The rain signal control circuit is formed by the normally open auxiliary contact of the first contactor KM1 and the normally open auxiliary contact of the third contactor KM3 in parallel. One end of the rain signal control circuit is connected between the normally open contact of the forward start button SF1 and the normally closed contact of the reverse start button SF2. The other end of the rain signal control circuit is connected to the automatic control contact of the knob switch SA.

[0038] The water immersion sensor and the diffuse reflection induction sensor are respectively connected to the signal input end of the intelligent controller, and the sound and light alarm is connected to the signal output end of the intelligent controller. The signal output end of the intelligent controller is respectively connected to the control terminal of the first contactor KM1 and the control terminal of the third contactor KM3 through relays.

[0039] The duplex folding awning, constructed from welded galvanized round pipe, is a crucial component of the entire system. The first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2, each 0.38kW, combine with a gearbox to form a drive unit that powers the duplex folding awning.

[0040] Turn the rotary button SA to manual mode. At this time, the automatic mode is invalid. Press the forward start button SF1 normally open contact, the coil of the first contactor KM1 and the coil of the second contactor KM3 are energized, the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are closed, the first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2 rotate forward, and the first red indicator HR1 light is on; press the reverse start button SF2 normally open contact, the coil of the first contactor KM1 and the coil of the third contactor KM3 are de-energized, the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are disconnected, the coil of the second contactor KM2 and the coil of the fourth contactor KM4 are energized, the primary main contact of the second contactor KM2 and the primary main contact of the fourth contactor KM4 are closed, the first three-phase asynchronous drive motor M1 and the second three-phase asynchronous drive motor M2 reverse, and the second red indicator HR2 light is on.

[0041] Turn the rotary button SA to automatic mode. At this time, the manual mode is invalid. Once the water immersion sensor detects rain, it transmits the signal to the intelligent controller through the RS-485 protocol. After receiving the signal, the intelligent controller issues a control instruction to activate the coils of the first contactor KM1 and the third contactor KM3, and the primary main contact of the first contactor KM1 and the primary main contact of the third contactor KM3 are closed, thereby starting the awning drive motor and automatically deploying the awning.

[0042] Whether in manual or automatic mode, obstacle detection uses the E3K-DS100M1 diffuse reflection induction sensor. During the automatic deployment of the awning, if the diffuse reflection induction sensor detects an obstacle, the diffuse reflection induction sensor transmits a signal to the intelligent controller, which controls the coils of the first contactor KM1 and the third contactor KM3 to lose power, and at the same time sounds an alarm through the sound and light alarm to remind staff to correct the obstacle in time.

[0043] Based on the above embodiment, in a preferred embodiment, the live wire output end of the three-phase power line is connected to a main circuit breaker QF3, which makes electricity use safer.

[0044] Based on the above embodiment, in a preferred embodiment, in the control circuit of the duplex folding awning, a fuse FU and a circuit breaker QS with a handle are connected between the live wire and the knob switch SA. This arrangement makes electricity use safer.

[0045] Based on the above embodiment, in a preferred embodiment, the control circuit of the duplex folding awning further includes a white indicator light HW. One end of the white indicator light HW is connected between the fuse FU and the circuit breaker with a handle QS, and the other end is connected to the neutral line N. This arrangement makes electricity use safer, and the white indicator light HW can be used to check whether the power connection is normal.

[0046] Based on the above embodiment, in a preferred embodiment, the water immersion sensor is installed on the outside of the duplex folding awning, and the diffuse reflection induction sensor is installed on the movable end of the duplex folding awning. This arrangement is structurally reasonable.

[0047] Based on the above embodiment, in a preferred embodiment, the diffuse reflection induction sensor is connected to a WiFi module for sending obstacle information to a mobile terminal device. This configuration facilitates remote reminders for staff to troubleshoot.

[0048] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. An intelligent steel bar covering system, characterized in that: It includes a duplex folding awning, an intelligent controller, a water immersion sensor, a diffuse reflection induction sensor, an audible and visual alarm, a first thermal overload relay KH1, a second thermal overload relay KH2, a first contactor KM1, a second contactor KM2, a third contactor KM3, a fourth contactor KM4 and a knob switch SA; The main circuit of the duplex folding awning is provided with a first three-phase asynchronous drive motor M1 and a second three-phase asynchronous drive motor M2 for driving the awning to unfold or retract; the first three-phase asynchronous drive motor M1 is connected to the three-phase power line in sequence through the electric heating element of the first thermal overload relay KHI, the primary main contact of the first contactor KM1 and the first circuit breaker QF1. The primary main contacts of the second contactor KM2 are also connected in parallel to both ends of the primary main contact of the first contactor KM1. The first contactor KM1 is used to control the forward rotation of the first three-phase asynchronous drive motor M1. The second contactor KM2 is used to control the reverse rotation of the first three-phase asynchronous drive motor M1; the second three-phase asynchronous drive motor M2 is connected to the three-phase power line in sequence through the electric heating element of the second thermal overload relay KH2, the primary main contact of the third contactor KM3, and the second circuit breaker QF2. The primary main contacts of the fourth contactor KM4 are also connected in parallel to both ends of the primary main contact of the third contactor KM3. The third contactor KM3 is used to control the forward rotation of the second three-phase asynchronous drive motor M2, and the fourth contactor KM4 is used to control the reverse rotation of the second three-phase asynchronous drive motor M2; The control circuit of the duplex folding awning includes a forward control sub-circuit, a reverse control sub-circuit, a main control circuit and a rain signal control circuit; The forward control sub-circuit includes the normally open contact of the forward start button SF1, the normally closed contact of the reverse start button SF2, the normally closed auxiliary contact of the second contactor KM2, the normally closed auxiliary contact of the fourth contactor KM4, and the first red indicator light HR1, which are connected in series. The normally closed auxiliary contact of the first contactor KM1 is connected in parallel to both ends of the normally open contact of the forward start button SF1. The coil of the first contactor KM1 and the coil of the second contactor KM2 are respectively connected in parallel to both ends of the first red indicator light HR1. The reverse control sub-circuit includes the normally open contact of the reverse start button SF2, the normally closed contact of the forward start button SF1, the normally closed auxiliary contact of the first contactor KM1, the normally closed auxiliary contact of the third contactor KM3, and the second red indicator light HR2, which are connected in series. The normally closed auxiliary contact of the second contactor KM2 is connected in parallel to both ends of the normally open contact of the reverse start button SF2. The coil of the second contactor KM2 and the coil of the fourth contactor KM4 are respectively connected in parallel to both ends of the second red indicator light HR2. The main control circuit includes a normally closed stop button SS1, an obstacle signal control circuit, a normally closed auxiliary contact of the first thermal overload relay KHI, and a normally closed auxiliary contact of the second thermal overload relay KH2, which are connected in series. The main control circuit is connected in series between the live wire L and the neutral wire N. The knob switch SA is connected between the live wire L and the normally closed stop button SS1. The knob switch SA includes a manual control contact and an automatic control contact. The normally closed stop button SS1 is connected to the manual control contact of the knob switch SA. The obstacle signal control circuit is formed by the normally closed auxiliary contact of the first contactor KM1 and the normally closed auxiliary contact of the third contactor KM3 connected in parallel. The forward control sub-circuit and the reverse control sub-circuit are connected in parallel and then connected in series between the normally closed stop button SS1 and the obstacle signal control circuit. The rain signal control circuit is formed by the normally open auxiliary contact of the first contactor KM1 and the normally open auxiliary contact of the third contactor KM3 in parallel. One end of the rain signal control circuit is connected between the normally open contact of the forward start button SF1 and the normally closed contact of the reverse start button SF2. The other end of the rain signal control circuit is connected to the automatic control contact of the knob switch SA. The water immersion sensor and the diffuse reflection induction sensor are respectively connected to the signal input end of the intelligent controller, and the sound and light alarm is connected to the signal output end of the intelligent controller. The signal output end of the intelligent controller is respectively connected to the control terminal of the first contactor KM1 and the control terminal of the third contactor KM3 through relays.

2. The intelligent steel bar covering system according to claim 1, characterized in that: The live wire output end of the three-phase power line is connected to the main circuit breaker QF3.

3. The intelligent steel bar covering system according to claim 2, characterized in that: In the control circuit of the duplex folding awning, a fuse FU and a circuit breaker QS with a handle are connected between the live wire and the knob switch SA.

4. An intelligent steel bar covering system according to any one of claims 1 to 3, characterized in that: The control circuit of the duplex folding awning also includes a white indicator light HW, one end of which is connected between the fuse FU and the circuit breaker QS with a handle, and the other end is connected to the neutral line N.

5. The intelligent steel bar covering system according to claim 4, characterized in that: The water immersion sensor is installed on the outside of the duplex folding awning, and the diffuse reflection induction sensor is installed on the movable end of the duplex folding awning.

6. The intelligent steel bar covering system according to claim 5, characterized in that: The diffuse reflection induction sensor is connected to a WiFi module for sending obstacle information to a mobile terminal device.