Red cloth curtain folding and unfolding method

Abstract

The invention discloses a red cloth curtain folding and unfolding method, which comprises the following steps of: driving a red cloth curtain to be unfolded or folded through the rotation of a driving motor, synchronously controlling two groups of laser ranging units positioned on two opposite sides of the red cloth curtain to respectively test the unfolding distance or the folding distance of the red cloth curtain, and respectively acquiring distance test data; and judging whether the distance test data of the two groups of laser ranging units are consistent or not, if so, storing and backing up the distance test data of the two groups of laser ranging units, and if not, performing exception handling on the folding and unfolding state of the red cloth curtain. By means of the red cloth curtain folding and unfolding method, unfolding and folding of the red cloth curtain can be controlled, and the abnormal folding and unfolding state is processed; the process is simplified, and application scenes are enriched.

Description

Technical Field

[0001] The invention relates to the technical field of electrical tools, and in particular to a method for retracting and releasing a red cloth curtain. Background Art

[0002] The high-voltage substation equipment cabinet has a high-voltage environment during operation. If accidentally touched, it may cause serious accidents. In order to ensure the normal operation of the power supply equipment and the personal safety of the operation and maintenance personnel, it is often necessary to unfold the red curtain when the equipment cabinet is in operation to remind that the equipment is in operation.

[0003] When the existing red curtains are actually retracted and extended, it is often the case that the unfolding heights of the red curtains of multiple equipment cabinets cannot be effectively controlled after being unfolded, resulting in an uneven situation. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for retracting and releasing a red cloth curtain, which can control the unfolding and retraction of the red cloth curtain and handle the abnormal retraction and release state; streamline the process and enrich the application scenarios.

[0005] In order to solve the above technical problems, the present invention provides a method for retracting and releasing a red cloth curtain, comprising the following steps: driving the red cloth curtain to be unfolded or retracted by rotating a driving motor, synchronously controlling two groups of laser ranging units located on opposite sides of the red cloth curtain to perform distance tests on the unfolding distance or the retracting distance of the red cloth curtain respectively, and obtaining distance test data respectively; judging whether the distance test data of the two groups of laser ranging units are consistent, if so, storing and backing up the distance test data of the two groups of laser ranging units, if not, performing abnormal processing on the retracted and released state of the red cloth curtain.

[0006] Among them, before the step of performing abnormal processing on the retracted and extended state of the red curtain, the following is also included: when the distance test data obtained by the two sets of laser ranging units exceed the preset value, the driving motor is braked.

[0007] Among them, the steps of handling abnormalities in the retracted and extended state of the red cloth curtain include: driving the motor to rotate rapidly counterclockwise for a certain period of time, and then rapidly rotating clockwise for a certain period of time; and shaking the red cloth curtain until the laser ranging module of the laser ranging unit is aligned with the shaft cap of the laser ranging unit.

[0008] Among them, the steps of handling abnormalities in the retraction and extension status of the red curtain include: driving the motor to rotate rapidly counterclockwise for a certain period of time, pausing for a certain period of time, and then rapidly rotating clockwise for a certain period of time, until a certain repetition frequency is reached, the red curtain is almost completely retracted, or the red curtain is almost completely extended.

[0009] Among them, before the step of performing abnormal processing on the retracted and extended state of the red curtain, the following is also included: based on the speed data of the driving motor, the diameter data of the rotating shaft and the rotation time data of the driving motor, the step of estimating the distance of the unfolding of the red curtain or the distance of the retracted red curtain.

[0010] Among them, the steps of estimating the distance of the red curtain being unfolded or the distance of the red curtain being retracted include the following: obtaining the estimated distance data of the position of the hem axis of the red curtain, the remaining length of the hem axis of the red curtain from the preset distance and the required time data.

[0011] The steps of synchronously controlling two groups of laser distance measuring units located on opposite sides of the red curtain to respectively perform distance tests on the unfolding distance or the retracting distance of the red curtain and respectively obtaining distance test data include the following: The laser distance measuring module of the laser distance measuring unit emits light to illuminate the shaft cap of the laser distance measuring unit; The step of receiving the light reflected by the shaft cap by the receiving component on the laser ranging module, wherein: a CMOS sensor is provided on the shaft cap.

[0012] Among them, before the step of the laser ranging module of the laser ranging unit emitting light to illuminate the shaft cap of the laser ranging unit, the step also includes: the step of manually fine-tuning and calibrating the laser ranging module and the shaft cap, which includes: setting one side of the shaft cap to be perpendicular to the red curtain, and keeping one side surface of the shaft cap parallel to the lower surface of the red curtain outer shell in the working state.

[0013] The implementation of the red cloth curtain retracting and releasing method of the present invention has the following beneficial effects: the red cloth curtain is driven to be unfolded or retracted by the rotation of a driving motor, and two groups of laser ranging units located on opposite sides of the red cloth curtain are synchronously controlled to respectively perform distance tests on the unfolding distance or the retracting distance of the red cloth curtain, and respectively obtain distance test data; it is judged whether the distance test data of the two groups of laser ranging units are consistent, and if it is judged to be yes, the distance test data of the two groups of laser ranging units are stored and backed up; if it is judged to be no, the retracting and releasing state of the red cloth curtain is abnormally processed, the unfolding and retraction of the red cloth curtain can be controlled, and the abnormal retracting and releasing state can be processed; the process is streamlined and the application scenarios are enriched. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1It is a schematic diagram of the overall structure of the red cloth curtain taking and releasing device according to an embodiment of the present invention.

[0016] Figure 2 The present invention is a flowchart of a method for retracting and releasing a red cloth curtain according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the principle of using laser ranging in the method for retracting and releasing a red cloth curtain according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 The figure shows the first embodiment of the red cloth curtain retracting and releasing device of the present invention.

[0020] It includes a red cloth curtain shell 1, a conductive slip ring 2, a reel 3, a red cloth curtain entrance and exit 4, a drive motor 5, a fastening terminal 6, a first laser ranging module 7, a first shaft cap 8, a second laser ranging module 9, a second shaft cap 10, a red cloth curtain 11 and a red cloth curtain hem shaft 12.

[0021] Among them: the conductive slip ring 2 is installed on the left end of the reel 3, and the drive motor 5 is installed and fixed on the other end of the reel 3. The fastening terminal 6 is fixed to the inner right end of the red curtain shell 1. The assembled reel 3, conductive slip ring 2, and drive motor 5 are installed in the fastening terminal 6 and locked.

[0022] One end of the red curtain 11 is connected to the reel 3 and fixed. The other end passes through the red curtain entrance 4 and is connected to the red curtain hem shaft 12. The left and right ends of the red curtain hem shaft 12 are respectively installed in the first shaft cap 8 and the second shaft cap 10.

[0023] Furthermore, the two groups of laser ranging units in this embodiment are respectively located on opposite sides of the red cloth curtain. In this embodiment, the first laser ranging module 7 and the second laser ranging module 9 are respectively installed on the left and right sides of the inner side of the red cloth curtain housing 1. The first laser ranging module 7 and the second laser ranging module 9 can smoothly emit light outward through the red cloth curtain entrance 4, and the CMOS sensors on the first shaft cap 8 and the second shaft cap 10 can smoothly receive the reflected light from the outside.

[0024] like Figure 2-3 The figure shows the first embodiment of the method for retracting and releasing the red cloth curtain of the present invention.

[0025] The red curtain retracting and releasing method in this embodiment has the functions of distance estimation and abnormal processing flow, thereby achieving precise control and covering more application scenarios. At the same time, it can be applied in Figure 1 In the red cloth curtain retracting and releasing device shown.

[0026] The method for collecting and releasing the red curtain comprises the following steps: Step S10, driving the red curtain to be unfolded or retracted by the rotation of the driving motor, and synchronously controlling two groups of laser distance measuring units located on opposite sides of the red curtain to respectively perform distance tests on the unfolding distance or the retracting distance of the red curtain, and respectively obtain distance test data; Step S20, determining whether the distance test data of the two groups of laser ranging units are consistent, if determined to be yes, storing and backing up the distance test data of the two groups of laser ranging units, if determined to be no, performing abnormal processing on the retracted and extended state of the red curtain.

[0027] In specific implementation, before the step of handling the abnormality of the retracted and extended state of the red curtain, the following is also included: when the distance test data obtained by the two sets of laser ranging units exceed the preset value, the driving motor is braked.

[0028] In this embodiment, the conventional operation process of unfolding or retracting the red curtain is driven by the rotation of the drive motor, which is specifically as follows: for the unfolding operation of the red curtain, the drive motor 5 is controlled to rotate clockwise to release the red curtain 11, and the first laser ranging module 7 and the second laser ranging module 9 are driven to perform a distance test. When the measured distance reaches the preset value, the drive motor 5 is stopped; for the retracting operation of the red curtain, the drive motor 5 is controlled to rotate counterclockwise to retract the red curtain 11. At the same time, the first laser ranging module 7 and the second laser ranging module 9 are driven to perform a distance test. When the measured distance reaches the preset value, the drive motor 5 is stopped.

[0029] The purpose of setting up two sets of laser distance measuring units is that the first laser distance measuring module 7 and the first shaft cap 8 form a laser measurement unit, and the second laser distance measuring module 9 and the second shaft cap 10 form another laser measurement unit. Furthermore, since a considerable part of the unfolding and recycling process of the red curtain is open-loop, and the red curtain is relatively soft, it is easily swung by air flow. We use two sets of laser distance measuring units to obtain the distance data between the hem axis 12 of the red curtain and the outer shell 1 of the red curtain with a higher probability. The two laser measurement units back up each other to ensure the reliability and security of the data.

[0030] Furthermore, the role of abnormal handling of the folding and unfolding state of the red curtain is: when unfolding the red curtain, when the red curtain 11, the hem shaft 12, the first shaft cap 8, and the second shaft cap 10 are lowered, the first laser ranging module 7 and the first shaft cap 8 may not always be aligned. Although the second laser ranging module 9 and the second shaft cap 10 for ranging backup are added. It cannot be guaranteed that at least one of the two groups of laser ranging units will measure the correct distance. At this time, it is necessary to enter the abnormal handling process.

[0031] The condition for entering is: the distance data given by the two sets of laser distance measuring units are all over the limit, and the driving motor 5 is stopped immediately to release the red curtain 11.

[0032] Furthermore, the step of handling abnormalities in the retracted and extended state of the red cloth curtain includes: driving the motor to rotate rapidly counterclockwise for a certain period of time, and then rapidly rotating clockwise for a certain period of time; and shaking the red cloth curtain until the laser ranging module of the laser ranging unit is aligned with the shaft cap of the laser ranging unit.

[0033] For example, the driving motor 5 is controlled to rotate counterclockwise for 0.2 seconds, and then immediately rotates clockwise for 0.2 seconds. The red curtain 11 is shaken. The shake will affect the physical positions of the hem shaft 12, the first shaft cap 8 and the second shaft cap 10 of the red curtain, so that there is a probability that the first shaft cap 8 is aligned with the first laser ranging module 7 or there is a probability that the second shaft cap 10 is aligned with the second laser ranging module 9.

[0034] Furthermore, the step of handling abnormalities in the retraction and extension state of the red curtain includes: driving the motor to rotate rapidly counterclockwise for a certain period of time, pausing for a certain period of time, and then rapidly rotating clockwise for a certain period of time, until a certain repetition frequency is reached, the red curtain is nearly fully retracted, or the red curtain is nearly fully extended.

[0035] For example: control the drive motor 5 to rotate rapidly counterclockwise for 0.2 seconds, pause for 0.5 seconds, and then continue to rotate counterclockwise for 0.2 seconds. Until the effective measurement result of the laser ranging module is obtained, the maximum limit is 10 times or it is close to being fully retracted. Another example: control the drive motor 5 to rotate rapidly clockwise for 0.2 seconds, pause for 0.5 seconds, and then continue to rotate clockwise for 0.2 seconds. Until the effective measurement result of the laser ranging module is obtained, the maximum limit is 10 times or it is close to being fully deployed.

[0036] Furthermore, before the step of performing abnormal processing on the retracted and extended state of the red curtain, the following is also included: based on the speed data of the driving motor, the diameter data of the rotating shaft and the rotation time data of the driving motor, the step of estimating the distance of the unfolding of the red curtain or the distance of the retracted red curtain.

[0037] Preferably, the steps of estimating the distance that the red curtain is unfolded or the distance that the red curtain is retracted include the following: obtaining the estimated distance data of the position of the hem axis of the red curtain, the remaining length of the hem axis of the red curtain from the preset distance and the required time data.

[0038] During implementation, the position of the hem shaft 12 of the red curtain is estimated, that is, the length of the red curtain 11 released. Since the speed of the driving motor 5 is fixed and the diameter of the reel 3 is also fixed, the position of the hem shaft 12 of the red curtain, the remaining length of the hem shaft 12 of the red curtain from the preset distance and the required time can be roughly estimated by using the speed V1 of the driving motor 5, the radius R1 of the reel 3 and the time T1 of the driving motor rotation controlled by the software.

[0039] The estimation formula is: S1=2ΠR1*V1*T1 For example: R1=3CM, V1=50 rpm, T1=10 seconds, S1= 2*3.14*0.03 (m)*50 (rpm)*(10 / 60) (minutes), S1=1.57m If the preset value is D1 is 2.05 meters, the remaining length D2 = D1-S1; D2 = 2.05 meters-1.57 meters; D2 = 0.48 m The time required for the remaining distance is T2 = D2 / (2ΠR1*V1); T2 = 0.48 (m) / (2*3.14*R1*50 rpm); T2 = 0.051 min; T2 = 3 sec That is to say, after running for 10 seconds, there are still 0.48 meters left to the preset position, and it will take about 3 seconds.

[0040] The purpose of such setting is to determine the timing of entering the abnormal processing process, that is, the abnormal processing process will not be executed when the red curtain is unfolded or retracted most of the time. The abnormal processing process may be executed only when it is close to being fully unfolded or nearly fully retracted, thereby ensuring the continuity and stability of the system operation. It avoids the situation where multiple units are not rising or falling at the same time when they are linked. It also avoids unnecessary misunderstandings and mistaking the red curtain system for failure.

[0041] Further, the steps of synchronously controlling two groups of laser distance measuring units located on opposite sides of the red curtain to respectively perform distance tests on the unfolding distance or the retracting distance of the red curtain, and respectively obtaining distance test data include the following: The laser distance measuring module of the laser distance measuring unit emits light to illuminate the shaft cap of the laser distance measuring unit; The step of receiving the light reflected by the shaft cap by the receiving component on the laser ranging module, wherein: a CMOS sensor is provided on the shaft cap.

[0042] Among them, before the step of the laser ranging module of the laser ranging unit emitting light to illuminate the shaft cap of the laser ranging unit, the step also includes: the step of manually fine-tuning and calibrating the laser ranging module and the shaft cap, which includes: setting one side of the shaft cap to be perpendicular to the red curtain, and keeping one side surface of the shaft cap parallel to the lower surface of the red curtain outer shell in the working state.

[0043] During implementation, the receiving device of the laser ranging module 7 processes the light through an optical lens to form a relatively regular light spot, which is projected onto the CMOS photosensor. When the positions of the laser ranging module 7 and the shaft cap 8 change, the position where the light spot is projected onto the CMOS will change. By calculating the pixel position of the CMOS light spot projection and combining the triangulation method, the distance between the laser ranging module 7 and the shaft cap 8 can be obtained.

[0044] At the same time, since the shaft cap 8 is square and one side is parallel to the emitting surface of the laser radar 7, the shaft cap 8 is made of silver-white plastic material and has strong reflective ability. When the incident light 101 hits the shaft cap 8, reflection and diffuse reflection occur. Among them, the reflected light 102 enters the receiving device of the laser ranging module 8.

[0045] A method for retracting and releasing a red cloth curtain implemented in accordance with the present invention has the following beneficial effects: the red cloth curtain is unfolded or retracted by the rotation of a driving motor, and two groups of laser ranging units located on opposite sides of the red cloth curtain are synchronously controlled to respectively perform distance tests on the unfolding distance or the retracting distance of the red cloth curtain, and respectively obtain distance test data; it is determined whether the distance test data of the two groups of laser ranging units are consistent, and if so, the distance test data of the two groups of laser ranging units are stored and backed up; if not, the retracting and releasing state of the red cloth curtain is abnormally processed, and the unfolding and retracting of the red cloth curtain can be controlled, and the abnormal retracting and releasing state can be processed; the process is streamlined and the application scenarios are enriched.

Claims

1. A method for collecting and releasing a red cloth curtain, characterized in that: The following steps are involved: The red curtain is unfolded or retracted by the rotation of the driving motor, and two groups of laser distance measuring units located on opposite sides of the red curtain are synchronously controlled to respectively perform distance tests on the unfolding distance or the retracting distance of the red curtain, and respectively obtain distance test data; Determine whether the distance test data of the two groups of laser ranging units are consistent. If so, store and back up the distance test data of the two groups of laser ranging units. If not, perform abnormal processing on the retracted and extended state of the red curtain.

2. The method for collecting and releasing red cloth curtain according to claim 1, characterized in that: The step of performing abnormal processing on the retracted and extended state of the red curtain also includes the following steps: The distance test data obtained by the two sets of laser ranging units exceed the preset value, and the driving motor is braked.

3. The method for collecting and releasing red cloth curtain according to claim 2, characterized in that: The step of performing abnormal processing on the retracted and extended state of the red curtain comprises: The driving motor rotates rapidly counterclockwise for a certain period of time, and then rapidly rotates clockwise for a certain period of time; The red cloth curtain is shaken until the laser distance measuring module of the laser distance measuring unit is aligned with the shaft cap of the laser distance measuring unit.

4. The method for collecting and releasing a red cloth curtain according to claim 2, characterized in that: The step of performing abnormal processing on the retracted and extended state of the red curtain comprises: The driving motor rotates rapidly counterclockwise for a certain period of time, pauses for a certain period of time, and then rapidly rotates clockwise for a certain period of time, until a certain repetition frequency is reached and the red curtain is nearly completely retracted or the red curtain is nearly completely unfolded.

5. The method for collecting and releasing red cloth curtain according to claim 1, characterized in that: The step of performing abnormal processing on the retracted and extended state of the red curtain also includes the following steps: The steps of estimating the distance that the red curtain is unfolded or the distance that the red curtain is retracted based on the speed data of the driving motor, the diameter data of the rotating shaft and the rotation time data of the driving motor.

6. The method for collecting and releasing a red cloth curtain according to claim 5, characterized in that: The steps of estimating the distance of the red curtain being unfolded or the distance of the red curtain being retracted include the following steps: obtaining the estimated distance data of the position of the hem axis of the red curtain, the remaining length of the hem axis of the red curtain from the preset distance and the required time data.

7. The method for collecting and releasing a red cloth curtain according to claim 1, characterized in that: The steps of synchronously controlling two groups of laser distance measuring units located on opposite sides of the red curtain to respectively perform distance tests on the unfolding distance or the retracting distance of the red curtain and respectively obtaining distance test data include the following: The laser distance measuring module of the laser distance measuring unit emits light to illuminate the shaft cap of the laser distance measuring unit; The step of receiving the light reflected by the shaft cap by the receiving component on the laser ranging module, wherein: a CMOS sensor is provided on the shaft cap.

8. The method for collecting and releasing a red cloth curtain according to claim 7, characterized in that: Before the step of the laser distance measuring module of the laser distance measuring unit emitting light to irradiate the shaft cap of the laser distance measuring unit, the step of manually fine-tuning and calibrating the laser distance measuring module and the shaft cap includes: The step of setting one side of the shaft cap to be perpendicular to the red curtain, and keeping one side surface of the shaft cap parallel to the lower surface of the red curtain shell in the working state.

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