Electric motorized awning automatic control system and control method thereof

Abstract

The present application relates to the field of special-shaped foundation pit dust prevention, in particular to an electric awning automatic control system and a control method thereof, comprising a traction mechanism, a guide assembly, a control mechanism and a monitoring mechanism, a moving mechanism is arranged on one side of the traction mechanism, a curtain is fixed on one side of the moving mechanism, the traction mechanism comprises a motor, a guide wheel and a circulating rope, the control mechanism comprises a centralized control box, power buttons, master control buttons and sub-control buttons are arranged on the surface of the centralized control box, the monitoring mechanism comprises a gas detection module and a dust detection module, the circulating rope and the moving mechanism are adopted, the dust prevention awning can be installed in the whole range of the foundation pit, the dust reduction effect is significantly improved, a motor wire and a control wire are led out at the position of the traction motor of each dust prevention awning and extended to the centralized control box, the curtain is numbered and corresponded, remote intelligent operation is realized, the atmospheric monitoring index is obviously decreased through the gas detection module and the dust detection module in the monitoring mechanism, and the expected effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of special-shaped foundation pit dust prevention, in particular to an electric awning automatic control system and a control method thereof. BACKGROUND

[0002] The foundation pit refers to the deep and wide cave or pit excavated during the construction process for the construction of underground structures, which is usually used for building underground parking lots, underground shopping malls, subway stations, basements and other underground structures, and the shape of the foundation pit is determined by the engineering requirements, which is roughly divided into two categories of regular and special-shaped;

[0003] The foundation pit construction site usually generates a large amount of dust, which may have a negative impact on the surrounding environment and personnel health, therefore, during the foundation pit excavation and underground structure construction process, the implementation of dust prevention work is also the top priority, the foundation pit excavation adopts wet operation, and the dust prevention curtain is covered with excavation, but the dust prevention curtain itself has low structural strength, repeated uncovering and covering can cause damage to the dust prevention curtain, affecting the dust prevention effect, and also consuming a large amount of labor;

[0004] In order to reduce the consumption of dust prevention curtain and labor in the current foundation pit construction process, steel wire ropes are used as traction tracks, although the operation is convenient compared with sliding tracks, but manual traction is still required, and a large amount of steel structure trusses are needed for the installation of the steel frame type dust prevention awning system, which has huge material and labor costs, at the same time, the traction motors of each span dust prevention awning net are connected to the total control box, corresponding to the awning number, to realize intelligent central control. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an electric awning automatic control system and a control method thereof, to solve the technical problems that the existing electric dust prevention awning cannot be applied to special-shaped foundation pits, is difficult to realize automation, and can only be controlled and cannot measure the dust prevention effect.

[0006] In order to achieve the above purposes, the present application provides an electric awning automatic control system and a control method thereof, which comprises a traction mechanism and a guide assembly fixed on the concrete retaining wall of the road foundation pit edge, a control mechanism for controlling the traction mechanism and a monitoring mechanism for detecting the environmental quality, a moving mechanism is arranged on one side of the traction mechanism, and a curtain for covering the foundation pit is fixed on one side of the moving mechanism.

[0007] The traction mechanism comprises a fixed frame and an assembly frame, a motor is assembled on one side of the assembly frame, a rotating wheel is fixed on the output end of the motor, a stand is further installed on the fixed frame, guide wheels are rotatably arranged on the upper and lower ends of the stand, and a circulating rope is wrapped around the rotating wheel and is attached to the outer side of the guide wheels.

[0008] The control mechanism comprises a centralized control box, and the surface of the centralized control box is respectively provided with a power button, a master control button and a sub-control button; the monitoring mechanism comprises a gas detection module and a dust detection module.

[0009] Preferably, three groups of wires are connected in parallel in the centralized control box, and a total switch is connected to the three groups of wires, the total switch is connected to the power button, a fuse is further arranged on each of the three groups of wires, a first contactor switch is connected in series on one side of the fuse, a thermal relay is further connected to the first contactor switch through a wire on one side of the first contactor switch, the thermal relay is connected to a motor, and the motor is connected to a ground wire.

[0010] Preferably, an additional fuse is further arranged on two of the three groups of wires, two groups of relay switches are connected in series on one side of the additional fuse, and a second contactor switch, a switch button and an alternating current contactor are arranged in a parallel state.

[0011] Preferably, the gas detection module comprises an inductance module, two groups of parallel first resistors are connected in series on the outside of the inductance module, and a first operational amplifier is further connected to one side of the inductance module, and a second resistor is connected to the same phase input end of the first operational amplifier.

[0012] Preferably, a chip is connected to the output end of the first operational amplifier.

[0013] Preferably, the dust detection module comprises a second LED lamp and a third LED lamp, a third resistor and a triode are connected in series on the second LED lamp, a second operational amplifier is arranged on one side of the third LED lamp, and a pin is arranged on one side of the second LED lamp and the third LED lamp.

[0014] Preferably, the moving mechanism comprises a plurality of first pulley sets and second pulley sets, and a fine adjustment assembly is arranged between adjacent two groups of first pulley sets or second pulley sets, the guide assembly comprises a support, a guide rope is fixedly arranged at one end of the support, and a sliding piece is slidably arranged on the guide rope.

[0015] Preferably, a plurality of beam frames are arranged inside the foundation pit, a U-shaped frame is fixedly arranged on the fixed frame, a guide cable is fixedly arranged in the U-shaped frame, and an inclined support rod is welded on one side of the fixed frame.

[0016] Preferably, the monitoring mechanism comprises a base and a mounting disc, a vertical rod is fixedly arranged on the surface of the mounting disc, a monitoring head is assembled at the top end of the vertical rod, and the gas detection module and the dust detection module are located inside the monitoring head.

[0017] Preferably, the control method comprises the following steps:

[0018] Step 1: Close the total switch by pressing the power button on the centralized control box, so as to connect the circuit in the control mechanism, and when the circuit is connected, the current is transmitted to the motor through the wire, and then the motor is started;

[0019] Step two, the motor can drive the rotating wheel to rotate, thereby driving the circulating rope to move, and the moving circulating rope drives the first pulley set and the second pulley set to move linearly in opposite directions, thereby unfolding the curtain;

[0020] Step three, the normally open auxiliary contact of the AC contactor connected in series on the motor in the control circuit can ensure the priority start of the motor, in the circuit, the corresponding group of button switches can control the simultaneous stop of the two motors, and the button switches of the other group can control the individual stop of the corresponding motor, thereby realizing sequential control.

[0021] Step four, after the curtain is unfolded, the gas detection module and the dust detection module in the monitoring mechanism can be used to monitor the environment in real time, so that the dust in the environment does not exceed the national control point monitoring PM2.5, PM10, TSP and other indicators, which is beneficial to improve the project construction management image.

[0022] The beneficial effects of the present application are:

[0023] The present application adopts circulating rope + moving mechanism, sets fixed ends on both sides of the foundation pit, single-span transverse traction, and the curtain length changes with the position of the foundation pit retaining wall, so that the dust-proof awning can be installed in the entire range of the foundation pit, the dust reduction effect is significantly improved, and at the position of the traction motor of each span dust-proof awning, a motor wire and a control wire are led out and extended to the control box, the curtain is numbered and corresponding, remote intelligent operation is realized, the environment atmospheric index monitoring of the national control point position around the full-coverage dust-proof awning system and the intelligent operation of the electric awning system can be realized, the monitoring mechanism can be set in the national control point peripheral environment of the foundation pit, the atmospheric monitoring index can be measured by the gas detection module and the dust detection module in the monitoring mechanism, the atmospheric monitoring index is obviously decreased, the air quality is significantly improved, the dust-proof awning runs smoothly, the intelligent linkage is realized, the use efficiency is significantly improved, and the expected effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0026] Figure 2 It is a schematic diagram of the overall structure of the present application. Figure 1 It is a schematic diagram of the overall structure of the present application.

[0027] Figure 3 It is a schematic diagram of the traction mechanism structure of the present application.

[0028] Figure 4 The guiding assembly structure diagram of the present application is shown in Figure 3 The amplification structure diagram of B in the present application is shown in

[0029] Figure 5 The guiding assembly structure diagram of the present application is shown in

[0030] Figure 6 The guiding assembly structure diagram of the present application is shown in

[0031] Figure 7 The guiding assembly structure diagram of the present application is shown in

[0032] Figure 8 The guiding assembly structure diagram of the present application is shown in

[0033] Figure 9 The guiding assembly structure diagram of the present application is shown in

[0034] Figure 10 The guiding assembly structure diagram of the present application is shown in

[0035] Figure 11 The guiding assembly structure diagram of the present application is shown in

[0036] Figure 12 The guiding assembly structure diagram of the present application is shown in

[0037] Figure 13 The guiding assembly structure diagram of the present application is shown in

[0038] Figure 14 The guiding assembly structure diagram of the present application is shown in

[0039] The guiding assembly structure diagram of the present application is shown in

[0040] 1, road surface; 11, foundation pit; 12, concrete retaining wall; 13, beam; 2, traction mechanism; 21, fixed frame;

[0041] 23, assembly frame; 24, motor; 241, rotating wheel; 25, stand; 251, guide wheel; 26, circulating rope; 27, U-shaped frame;

[0042] 28, guide cable;

[0043] 3, moving mechanism; 31, first pulley set; 32, fine adjustment assembly; 321, outer sleeve; 322, first inner sleeve; 323, second inner sleeve; 324, moving sleeve; 325, first connecting piece; 3251, first spring; 3252, piston; 326, round ball; 3261, second spring; 3262, second connecting piece; 33, second pulley set; 34, first frame; 341, first roller; 342, first rotating shaft; 35, connecting piece; 351, first mounting piece; 352, second mounting piece; 36, second frame; 361, buckle; 362, second roller; 363, connecting plate; 364, second rotating shaft;

[0044] 4, curtain;

[0045] 5, guiding assembly; 51, support; 52, guiding rope; 53, sliding piece;

[0046] 6, control mechanism; 61, control box; 611, power button; 612, master control button; 613, sub-control button; 62, wire;

[0047] 621, master switch; 622, ground wire; 63, fuse; 64, first contactor switch; 65, thermal relay; 66, relay switch; 67, switch button; 68, second contactor switch; 69, AC contactor;

[0048] 7, monitoring mechanism; 71, base; 711, mounting disc; 712, vertical rod; 72, monitoring head; 73, gas detection module; 731, inductance module; 732, first resistor; 733, first operational amplifier; 734, second resistor; 735, third resistor; 736, first LED lamp; 737, capacitor; 738, chip; 74, dust detection module; 741, second LED lamp; 742, third LED lamp; 743, second operational amplifier; 744, triode; 745, fourth resistor; 746, pin. DETAILED DESCRIPTION

[0049] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments.

[0050] It should be noted that the technical terms or scientific terms used in the present application should be understood as the general meaning understood by those skilled in the art to which the present application belongs, unless otherwise defined. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] In order to further understand the present application, the present application will be described in detail below in combination with the drawings.

[0052] In combination Figures 1-4 And Figures 7-14 The present application provides an electric curtain automatic control system, which comprises a traction mechanism 2 and a guide assembly 5 fixed on the concrete retaining wall 12 at the edge of the foundation pit 11 of the road surface 1, a control mechanism 6 for controlling the traction mechanism 2 and a monitoring mechanism 7 for detecting environmental quality, one side of the traction mechanism 2 is provided with a moving mechanism 3, one side of the moving mechanism 3 is fixed with a curtain 4 for covering the foundation pit 11;

[0053] The traction mechanism 2 comprises a fixed frame 21 and an assembly frame 23, the assembly frame 23 is assembled with a motor 24 on one side, the output end of the motor 24 is fixed with a rotating wheel 241, a stand column 25 is also installed on the fixed frame 21, a guide wheel 251 is rotatably arranged on the upper and lower ends of the stand column 25, and a circulating rope 26 is attached to the outer side of the guide wheel 251 and wound around the rotating wheel 241;

[0054] The control mechanism 6 comprises a centralized control box 61, and the surface of the centralized control box 61 is respectively provided with a power button 611, a master control button 612 and a sub-control button 613;

[0055] The monitoring mechanism 7 comprises a gas detection module 73 and a dust detection module 74;

[0056] Firstly, by adopting the circulating rope 26 + moving mechanism 3, fixed end is set on both sides of the foundation pit, single span transverse traction, the length of the curtain 4 changes with the position of the foundation pit retaining wall, so that the dustproof canopy can be installed in the whole range of the foundation pit, the dust falling effect is significantly improved, at the position of the traction motor 24 of each span dustproof canopy, a motor line and a control line are led to the control box 61, the curtain 4 is numbered and corresponding, remote intelligent operation is realized, in this process, the power button 611 on the surface of the control box 61 is pressed to turn on the circuit loop in the whole control system, the general control button 612 is used to start and stop the multiple groups of motors 24 arranged on the edge of the concrete retaining wall 12, the number of the motor 24 should be determined according to the actual situation of the size of the foundation pit;

[0057] Secondly, the motor 24 on one side of the assembly frame 23 can control the rotation of the rotating wheel 241 and drive the movement of the circulating rope 26, the guide wheel 251 at the upper and lower ends of the stand column 25 can ensure that the circulating rope 26 does not shake too much during movement, the circulating rope 26 has two movement states, the movement direction of the circulating rope 26 body located above is towards the motor 24, and the circulating rope 26 body located below is away from the motor 24;

[0058] The moving mechanism 3 installed on the circulating rope 26 above drives the curtain 4 to move towards the motor 24, and the moving mechanism 3 installed on the circulating rope 26 below gradually moves away from the motor 24, so that the curtain 4 is expanded in two directions at the same time.

[0059] Finally, in order to realize the full coverage dustproof canopy system of the foundation pit around and the national control point position environmental atmospheric index monitoring, as well as the intelligent operation of the electric canopy system, the monitoring mechanism 7 can be arranged in the environment around the national control point of the foundation pit 11, the atmospheric monitoring index can be measured by the gas detection module 73 and the dust detection module 74 in the monitoring mechanism 7, the air quality is significantly improved, the dustproof canopy runs smoothly, the intelligent linkage, the use efficiency is significantly improved, and the expected effect is achieved.

[0060] Combined Figure 10 , three groups of wires 62 are connected in parallel in the control box 61, the total gate 621 is connected on the three groups of wires 62, the total gate 621 is connected with the power button 611, the fuse 63 is arranged on the three groups of wires 62 respectively, the first contactor switch 64 is connected in series on one side of the fuse 63, the thermal relay 65 is connected through the wire 62 on one side of the first contactor switch 64, the thermal relay 65 is connected with the motor 24, and the motor 24 is connected with the ground wire 622;

[0061] In this embodiment, the first contactor switch 64 (KM1) is connected in series with the control circuit of the motor 24 (M2), which ensures that the motor 24 (M1) is started first. The switch button 67 (SB12) controls the simultaneous stop of the two motors 24, and the switch button 67 (SB22) controls the individual stop of the motor 24 (M2). The thermal relay 65 mainly functions as an overload protection in the circuit. When the current in the wire 62 exceeds the set value, the thermal relay 65 senses the increase in heat in the circuit, causing the internal components to expand and open or cut off the circuit. Similarly, the fuse 63 is also an electrical protection device, and its main function is to achieve overload protection. However, the fuse 63 in the control loop is for the overall circuit overload protection. When the current in the circuit exceeds the rated value or a short circuit occurs, the fuse 63 will melt and disconnect the circuit to prevent equipment damage or fire. This embodiment only demonstrates the sequential control of two motors 24, and further optimization can be made according to the above control principle based on actual conditions.

[0062] In combination Figure 10 , two of the three groups of wires 62 are additionally provided with fuses 63. The fuses 63 are connected in series with two groups of relay switches 66 on one side through the wires 62, and are provided with a second contactor switch 68, a switch button 67, and an AC contactor 69 in parallel state;

[0063] In this embodiment, the two ends of the switch button 67 (SB12) are connected in parallel with the normally open auxiliary contact of the second contactor switch 68 (KM2), which can achieve the control requirements of the motor 24 (M1) starting first, the motor 24 (M2) starting second, the motor 24 (M2) stopping first, and the motor 24 (M1) stopping second. The two groups of relay switches 66 are used to control the corresponding thermal relays 65, and the AC contactor 69 can use the internal electromagnetic attraction to control the closing and opening of the contacts. When powered on, the electromagnetic coil of the AC contactor 69 generates a magnetic field, causing the contacts to close. When powered off, the magnetic field of the electromagnetic coil of the AC contactor 69 disappears, and the contacts open. This can achieve remote control of the circuit, and the start and stop of high-power equipment can be completed through a small control signal.

[0064] In combination Figure 12The gas detection module 73 includes an inductance module 731, two groups of first resistors 732 connected in parallel are connected in series outside the inductance module 731, and a first operational amplifier 733 is further connected to one side of the inductance module 731; the same-phase input end of the first operational amplifier 733 is connected with a second resistor 734;

[0065] In the embodiment, the gas detection module 73 is driven by 5V, AOUT is an analog signal output pin, the AOUT pin is directly connected to the input pin of the AD conversion of the STM32, the ADC converts the collected analog signal into a digital signal, in a normal environment, the output voltage value of the gas detection module 73 is set as a reference voltage, at this time, the voltage at the AOUT end is about 1V, when the gas detection module 73 detects the measured gas, the voltage increases by 0.1V, the concentration of the actually measured gas increases by 20ppm (1ppm=1mg / kg=1mg / l=1*10-6, commonly used to represent the concentration of gas), according to this parameter, the inductance module 731 can convert the measured analog voltage value into a concentration value, the two first resistors 732 connected in parallel can play a role of shunt voltage reduction, avoiding overheating of the inductance module 731, and the second resistor 734 is variable, and the first operational amplifier 733 can better transmit the signal transmitted by the inductance module 731 to the chip 738.

[0066] In combination with Figure 12 The output end of the first operational amplifier is connected with the chip 738, the output end of the first operational amplifier is provided with a third resistor 735, a first LED lamp 736 and a capacitor 737;

[0067] In the embodiment, DOUT of the chip 738 is an output digital signal, and AOUT is an output analog signal, which is equivalent to a switching power supply, and jumps to a set value, if a gas upper limit alarm device is needed, at this time, the DO pin can be used, the first LED lamp 736 can be used as a voltage stabilizing diode to ensure the voltage balance of the entire gas detection module 73 circuit, and the capacitor 737 can play a role of charging and discharging to avoid overloading of the gas detection module 73 circuit.

[0068] In combination with Figure 13 and Figure 14 The dust detection module 74 includes a second LED lamp 741 and a third LED lamp 742, a triode 744 and a fourth resistor 745 are connected in series on the second LED lamp 741, a second operational amplifier 743 is arranged on one side of the third LED lamp 742, and a pin 746 is arranged on one side of the second LED lamp 741 and the third LED lamp 742;

[0069] In this embodiment, the second LED lamp 741 and the third LED lamp 742 are infrared light emitting diodes and photoelectric transistors, respectively, which are diagonally installed to sense dust particles in the air, so that they can detect dust reflection light in the air, even very small particles such as tobacco smoke particles can be detected. The circuit has very low current consumption, and the output is an analog voltage whose value is proportional to the dust concentration. In theory, particles above 0.8 microns can be measured. As the dust concentration increases, the reflected light increases, and thus the output analog voltage value increases. The second operational amplifier 743 can convert the analog value into a digital voltage value. Using the proportional relationship, the dust concentration is ultimately obtained. The pin 746 is used to connect external devices, and the triode 744 is used to balance the output current.

[0070] In combination Figure 3 and Figure 6 , Figure 7 , Figure 8 , the moving mechanism 3 includes multiple sets of first pulley sets 31 and second pulley sets 33, and a fine adjustment assembly 32 is arranged between adjacent two sets of first pulley sets 31 or second pulley sets 33. The guide assembly 5 includes a bracket 51, one end of the bracket 51 is fixedly provided with a guide rope 52, and a sliding piece 53 is slidably arranged on the guide rope 52.

[0071] In this embodiment, the first pulley set 31 installed on the upper circulating rope 26 drives the curtain 4 to move towards the motor 24, and the second pulley set 33 installed on the lower circulating rope 26 gradually moves away from the motor 24, so that the curtain 4 is simultaneously expanded in two directions. The bracket 51, the guide rope 52 and the sliding piece 53 cooperate with the first pulley set 31 and the second pulley set 33 to ensure that the curtain 4 can be smoothly expanded and cover the foundation pit 11. The fine adjustment assembly 32 between adjacent two sets of first pulley sets 31 or second pulley sets 33 can ensure that the distance between adjacent two sets of first pulley sets 31 does not change too much. The curtain 4 expanded to both sides can continuously adjust in two directions, which not only covers the foundation pit 11, but also avoids excessive displacement causing the curtain 4 to stack at the end of the moving path.

[0072] In this embodiment, the fine adjustment assembly 32 includes an outer sleeve 321, a first inner sleeve 322 fixedly arranged inside the outer sleeve 321, a second inner sleeve 323 fixedly connected to one end of the first inner sleeve 322, and a moving sleeve 324 movably arranged at one end of the outer sleeve 321.

[0073] Further, the first inner sleeve 322 and the second inner sleeve 323 are in communication, but the diameter of the second inner sleeve 323 is smaller than the inner diameter of the first inner sleeve 322, so that the internal spaces of the first inner sleeve 322 and the second inner sleeve 323 are not the same. The moving sleeve 324 can enter the outer sleeve 321.

[0074] In the embodiment, the other end of the outer sleeve 321 is movably provided with a first connecting plate 325 connected with the connecting plate 363, and the first connecting plate 325 is provided with a first spring 3251 located in the inside of the first inner sleeve 322 on one side, and the one end of the first spring 3251 is fixedly connected with a piston 3252;

[0075] Further, when the distance between two adjacent second frames 36 is too far when the second frame 36 starts to move, the connecting plate 363 drives the first connecting plate 325 to move, the moving first connecting plate 325 makes the first spring 3251 be stretched, and the first spring 3251 drives the piston 3252 to move in the first inner sleeve 322, so that the second frame 36 in front has a suitable displacement equivalent.

[0076] In the embodiment, the inside of the second inner sleeve 323 is movably provided with a ball 326, the outside of the ball 326 is fixedly provided with a second spring 3261 located in the inside of the moving sleeve 324, and the one end of the second spring 3261 is fixedly connected with a second connecting plate 3262. Further, the moving piston 3252 makes the inside of the first inner sleeve 322 be in negative pressure, so that the ball 326 moves in the inside of the second inner sleeve 323, and the second spring 3261 is stretched, and when the two adjacent second frames 36 are stable, the second spring 3261 and the first spring 3251 are retracted, and in the process, because the inside of the first inner sleeve 322 is still in negative pressure, the physical properties that the second spring 3261 and the first spring 3251 are retracted to the center are avoided, so that the two adjacent second frames 36 will not be too close, and the first inner sleeve 322 and the second inner sleeve 323 with different internal space sizes can make the displacement of the piston 3252 and the ball 326 form a ratio, which ensures the distance between the two adjacent second frames 36 and the retraction of the second spring 3261 and the first spring 3251 without rebound to make the piston 3252 and the ball 326 be displaced twice.

[0077] In combination Figures 2-10 , the inside of the foundation pit 11 is provided with a plurality of beam frames 13, the fixed frame 21 is fixedly provided with a U-shaped frame 27, the U-shaped frame 27 is fixedly provided with a guide cable 28, and the fixed frame 21 is welded with an inclined support rod on one side;

[0078] In the embodiment, the U-shaped frame 27 and the guide cable 28 fixed thereon can provide stability for the movement of the first pulley group 31 and the second pulley group 33, and the inclined support rod is arranged to strengthen the overall structural strength of the fixed frame 21.

[0079] In combination Figure 11 , the monitoring mechanism 7 includes a base 71 and a mounting disc 711, the surface of the mounting disc 711 is fixedly provided with a vertical rod 712, the top end of the vertical rod 712 is assembled with a monitoring head 72, and a gas detection module 73 and a dust detection module 74 are located in the inside of the monitoring head 72.

[0080] In this embodiment, the base 71 is used to be fixed on the surface of the road surface 1, the mounting disc 711 is used to be fixedly assembled with the vertical rod 712, and the monitoring head 72 is used to protect the monitoring mechanism 7.

[0081] In combination Figures 3-13 The control method comprises the following steps:

[0082] Step one, by pressing the power button 611 on the control box 61 to drive the total brake 621 to be closed, so as to turn on the circuit in the control mechanism 6, when the circuit is turned on, the current is transmitted to the motor 24 through the wire 62, and then the motor 24 is started;

[0083] Step two, the rotating wheel 241 driven by the motor 24 can rotate, so as to drive the circulating rope 26 to move, and the moving circulating rope 26 drives the first pulley set 31 and the second pulley set 33 to move linearly in opposite directions, and then the curtain 4 is unfolded;

[0084] Step three, the normally open auxiliary contact of the alternating current contactor 69 connected in series on the motor 24 in the control circuit can ensure the priority start of the motor 24, in the circuit, the corresponding group of button switches can control the two motors to stop at the same time, and the other group of button switches can control the corresponding motor 24 to stop alone, so that the sequence control is realized;

[0085] Step four, when the curtain 4 is unfolded, the gas detection module 73 and the dust detection module 74 in the monitoring mechanism 7 can be used to monitor the environment in real time, so that the dust in the environment does not exceed the national control point monitoring PM2.5, PM10, TSP and other indicators, which is beneficial to improve the project construction management image.

[0086] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to suggest that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0087] The present application is intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, alternatives and equivalents should be taken as falling within the scope of the present application.

Claims

1. An automatic control method of a motorized awning, applied to an automatic control system of a motorized awning, characterized in that, The automatic control system of the electric curtain comprises a traction mechanism and a guide assembly fixed on the concrete retaining wall of the road foundation pit edge, a control mechanism for controlling the traction mechanism and a monitoring mechanism for detecting the environmental quality, and a moving mechanism is arranged on one side of the traction mechanism, and a curtain for covering the foundation pit is fixed on one side of the moving mechanism; The traction mechanism comprises a fixing frame and an assembly frame, a motor is assembled on one side of the assembly frame, a rotating wheel is fixed on the output end of the motor, a stand is further installed on the fixing frame, guide wheels are rotatably arranged on the upper and lower ends of the stand, and circulating ropes are attached to the outer sides of the guide wheels and wound around the rotating wheel; The moving mechanism comprises a plurality of first pulley groups and second pulley groups, and a fine adjustment assembly is arranged between adjacent first pulley groups or second pulley groups; The control mechanism comprises a control box, and power buttons, master control buttons and sub-control buttons are arranged on the surface of the control box; the monitoring mechanism comprises a gas detection module and a dust detection module; A plurality of beam frames are arranged in the foundation pit, a U-shaped frame is fixedly arranged on the fixing frame, a guide cable is fixedly arranged in the U-shaped frame, and an inclined support rod is welded on one side of the fixing frame; the fine adjustment assembly comprises an outer sleeve, a first inner sleeve is fixedly arranged in the outer sleeve, a second inner sleeve is fixedly connected to one end of the first inner sleeve, and a moving cylinder is movably arranged at one end of the outer sleeve; a first connecting piece connected with a connecting plate is movably arranged at the other end of the outer sleeve, a first spring is arranged on one side of the first connecting piece and located in the first inner sleeve, and a piston is fixedly connected to one end of the first spring; a ball is movably arranged in the second inner sleeve, a second spring is fixedly arranged on the outer side of the ball and located in the moving cylinder, and a second connecting piece is fixedly connected to one end of the second spring; The guide assembly comprises a support, a guide rope is fixedly arranged on one end of the support, and a sliding piece is slidably arranged on the guide rope; the first pulley group comprises a first frame, a first roller is assembled in the first frame, the first roller is rotatably arranged on the guide cable, and a first rotating shaft for fixing the first roller is further arranged in the first frame; a connecting piece is assembled on one side of the first frame, a first mounting piece fixedly connected with the first frame is arranged on the upper end of the connecting piece, and a second mounting piece is arranged on the lower end of the connecting piece; The control method comprises the following steps: Step 1: the master switch is closed by pressing the power button on the control box, so as to connect the circuit in the control mechanism, and when the circuit is connected, the current is transmitted to the motor through the wire, and then the motor is started; Step 2: the rotating wheel is driven to rotate by the motor, so as to drive the circulating rope to move, the moving circulating rope drives the first pulley group and the second pulley group to move linearly in opposite directions, and then the curtain is unfolded; Step 3: the normally open auxiliary contact of the alternating current contactor connected in series on one motor in the control circuit is used to ensure the priority start of the motor, in the circuit, one group of button switches is used to control the simultaneous stop of two motors, and the other group of button switches is used to control the independent stop of the corresponding motor, so as to realize the sequence control; Step 4: when the curtain is unfolded, the gas detection module and the dust detection module in the monitoring mechanism are used to monitor the environment in real time.

2. The motorized awning automatic control method of claim 1, wherein, The control box is connected with three groups of wires in parallel, a total switch is connected on the three groups of wires, the total switch is connected with the power button, a fuse is arranged on the three groups of wires respectively, a first contactor switch is connected in series on one side of the fuse, a thermal relay is connected through wires on one side of the first contactor switch, the thermal relay is connected with a motor, and the motor is connected with a ground wire.

3. The motorized awning automatic control method of claim 2, wherein, Two groups of wires among the three groups of wires are further provided with additional fuses, two groups of relay switches are connected in series through wires on one side of the additional fuses, and a second contactor switch, a switch button and an alternating current contactor in parallel state are arranged.

4. The motorized awning automatic control method of claim 1, wherein, The gas detection module comprises an inductance module, two groups of parallel first resistors are connected in series on the outside of the inductance module, a first operational amplifier is connected on one side of the inductance module, and a second resistor is connected with the same phase input end of the first operational amplifier.

5. The motorized awning automatic control method according to claim 4, wherein, The output end of the first operational amplifier is connected with a chip.

6. The motorized awning automatic control method of claim 1, wherein, The dust detection module comprises a second LED lamp and a third LED lamp, a triode and a fourth resistor are connected in series on the second LED lamp, a second operational amplifier is arranged on one side of the third LED lamp, and a pin is arranged on one side of the second LED lamp and the third LED lamp.

7. The motorized awning automatic control method of claim 6, wherein, The monitoring mechanism comprises a base and a mounting disc, a vertical rod is fixedly arranged on the surface of the mounting disc, a monitoring head is assembled on the top end of the vertical rod, and the gas detection module and the dust detection module are located in the monitoring head.

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