A safety door pull rope safety detection method

Abstract

The application provides a safety door pull rope safety detection method, and relates to the technical field of safety doors, and comprises the following steps: S1: judging whether the difference between the pulling force values of two adjacent pull ropes is not less than a first preset difference value; if yes, executing step S2; otherwise, not executing operation; S2: judging whether the difference between the pulling force values of two adjacent pull ropes is not greater than a second preset difference value at the same time; if yes, issuing a broken rope alarm; otherwise, not executing operation; the first preset difference value is greater than the second preset difference value. The application performs pulling force induction on the end of the pull rope. When the pulling force difference of the end of two adjacent pull ropes is very large while the pulling force difference of the end of another set of two adjacent pull ropes is very small, it is considered that there is a possibility of broken pull rope, a broken rope alarm is issued, the staff is reminded to eliminate the risk, and someone is prevented from passing through the safety door, so that the safety door has high safety.

Description

Technical Field

[0001] This invention relates to the field of security door technology, and in particular, to a method for testing the safety of a security door pull rope. Background Technology

[0002] With urban development, the demand for public transportation vehicles to serve the transportation needs between urban areas and suburbs is increasing. As different regions develop in diverse ways, the actual demand for public transportation vehicles varies greatly. These include buses between communities, subways (including underground railways and light rail) within cities, and vehicles between cities (including passenger vehicles, high-speed trains, and regular trains), etc., all of which are collectively referred to as public transportation vehicles.

[0003] These public transport platforms experience high passenger flow and operate at high speeds, necessitating the installation of platform screen doors to separate waiting passengers from the vehicles and prevent accidental falls. Furthermore, to accommodate varying passenger volumes, vehicles are typically designed with different formations, such as two-car or three-car formations. Different formations of vehicles may exist on a single line to accommodate different station boarding and alighting needs, meaning the doors of different vehicles may open in different positions. This can lead to mismatches between platform screen doors and vehicle doors, causing significant inconvenience for passengers boarding and alighting.

[0004] Therefore, conventional swing doors (sliding doors) cannot achieve the goal of "one platform screen door area corresponding to multiple types of vehicles". Now, there are platform screen doors with a large opening formed by setting a long pull rope between two gate posts. In this way, the width of the gate post accounts for a small proportion of the total width of the platform screen door. The opening position of each vehicle model can also be controlled by the length of the pull rope. For example, Chinese invention patent CN116517427A provides a smart platform screen door structure for rail transit platforms, which relates to the field of rail transit technology. It includes fixed columns and movable columns. The fixed columns are provided with telescopic grooves, and limit sliding columns are provided in the telescopic grooves. The movable columns include a main plate, a lead screw, and a slider. The upper part of the main plate is provided with a rotating roller and a conveyor belt. The lead screw is provided with a first connector and a second connector. The end of the conveyor belt away from the first connector is connected to the slider. The slider is provided with a hook. There are at least two fixed columns and movable columns, so that the movable columns on the two fixed columns are connected by a pull rope whose end is fixed to the hook. The invention is simple to set up. It uses a pull-rope screen door to extend the distance between the screen door columns. One screen door area can correspond to the doors of multiple types of vehicles, which is suitable for different requirements of different vehicle door opening positions, making it convenient for passengers to get on and off. In addition, the two-stage lifting structure of the pull rope is stable, and when the pull rope is lowered, it can effectively prevent people from falling off the platform, thus ensuring high safety.

[0005] However, the aforementioned platform screen door structure still has the following drawbacks: The entire platform is very long. In the past, without platform screen doors, the entire platform was unobstructed, and even a small number of staff could clearly see whether any passengers had crossed the yellow line. However, after installing multiple safety gate posts, the view is obstructed, and a small number of staff cannot promptly detect anyone intruding outside the safety gate. Although the pull rope can prevent pedestrians from crossing to some extent, the pull rope still faces the risk of weathering and breakage after long-term use, and there is also the risk of the pull rope being cut by people. Once the pull rope breaks, not only can passengers easily pass through the safety gate, but when the safety gate is opened, the broken ten-meter-long pull rope can easily trip passengers, trap passenger luggage, or even intrude into the vehicle driving area, causing serious risks. There are still safety hazards when vehicles enter and exit the station.

[0006] Therefore, in order to solve the above problems, it is necessary for us to design a safety detection method for the safety door pull rope. Summary of the Invention

[0007] The purpose of this invention is to provide a safety detection method for the pull rope of a safety gate. The method involves sensing the tension at the end of the pull rope. If there is a large difference in tension between the ends of two adjacent pull ropes while there is a small difference in tension between the ends of another set of two adjacent pull ropes, it is considered that there is a possibility of rope breakage. A rope breakage alarm is then issued to remind staff to eliminate the risk and prevent anyone from taking the opportunity to pass through the safety gate, thus ensuring that the safety gate has a high level of security.

[0008] To achieve the above objectives, the present invention employs the following technical solution:

[0009] A safety door pull rope safety detection method is provided for a safety door pull rope safety detection structure, the structure comprising a plurality of uprights and a safety door formed by a plurality of liftable pull ropes disposed between two adjacent uprights, comprising the following steps:

[0010] S1: Determine if the difference in tension between any two adjacent ropes is not less than a first preset difference; if yes, proceed to step S2; otherwise, do not proceed.

[0011] S2: Determine whether the difference between the tension values ​​of two adjacent ropes is not greater than the second preset difference; if so, issue an abnormal alarm; otherwise, do not perform the operation.

[0012] The first preset difference is greater than the second preset difference.

[0013] As a preferred embodiment of the present invention, the safety gate post is provided with a slider for connecting to the end of the pull rope and a motor for driving the slider to slide, and the post is provided with a controller;

[0014] Before executing step S1, establish electrical connections between the controllers on the columns at both ends of the safety gate, and obtain the lifting stroke positions of the two sliders at both ends of the pull rope in real time. Control the motor to ensure that the height difference between the two ends of the pull rope is not greater than the third preset difference value.

[0015] As a preferred embodiment of the present invention, the slider is provided with a tension sensor for connection with the pull rope; the tension sensor is electrically connected to the controller;

[0016] During steps S1 and S2, the controller obtains the tension value at the end of the pull rope through the tension sensor.

[0017] As a preferred embodiment of the present invention, before performing step S1, a first preset difference is generated based on the length and material of the pull rope;

[0018] Before performing step S2, a second preset difference is generated based on the length and material of the pull rope.

[0019] As a preferred embodiment of the present invention, when performing step S1, the specific steps are as follows:

[0020] The controller acquires the readings of the tension sensors at the ends of all the ropes on the same side of a column in real time, calculates the difference in tension values ​​between all adjacent ropes, and determines whether the difference in tension values ​​between adjacent ropes is not less than a first preset difference; if so, step S2 is executed; otherwise, no operation is executed.

[0021] As a preferred embodiment of the present invention, step S2 is specifically performed as follows:

[0022] Determine whether the difference in tension between two adjacent ropes is not less than a first preset difference and whether the difference in tension between two adjacent ropes is not greater than a second preset difference, and maintain this for a preset time; if so, issue an abnormal alarm; otherwise, do not perform the operation.

[0023] As a preferred embodiment of the present invention, when performing step S1, two adjacent pull ropes whose tension values ​​differ from each other by a first preset difference are marked as the first group of pull ropes.

[0024] When performing step S2, the ends of two adjacent pull ropes whose tension values ​​differ by no more than the second preset difference are marked as the second group of pull ropes;

[0025] When performing step S2, a preset time value is generated based on the minimum distance between any rope in the first group of ropes and any rope in the second group of ropes.

[0026] As a preferred embodiment of the present invention, the pull rope has two ends, each end of which is connected to a post;

[0027] When performing step S2, the uprights at both ends of the two ropes whose tension values ​​are not less than the first preset difference are simultaneously tested;

[0028] Determine whether the difference in tension between two adjacent ropes on either of the two pillars is not greater than a second preset difference; if so, issue an abnormal alarm; otherwise, do not perform any operation.

[0029] As a preferred embodiment of the present invention, an alarm is provided on the column;

[0030] When performing step S2, an abnormal alarm is issued via an alarm.

[0031] In a second aspect, an apparatus is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a safety door pull rope safety detection method provided by any of the implementations of the first aspect above.

[0032] Thirdly, embodiments of this application provide a computer storage medium storing a computer program, which includes program instructions. When the program instructions are executed by a processor, they can implement a safety door pull rope safety detection method provided by any of the implementation methods of the first aspect described above.

[0033] The beneficial effects of the safety detection method for the safety door pull rope of the present invention are as follows: tension sensing is performed at the end of the pull rope. When the tension difference between the ends of two adjacent pull ropes is large while the tension difference between the ends of another set of two adjacent pull ropes is small, it is considered that there is a possibility of pull rope breakage, and a rope breakage alarm is issued to remind staff to eliminate the risk and prevent people from taking the opportunity to pass through the safety door, thus ensuring that the safety door has a high level of security. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a safety door pull rope safety detection method according to the present invention. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0036] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of this application, which can be substituted or combined with each other. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0037] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0038] Example 1: As Figure 1 As shown, Figure 1 This is a schematic diagram of a safety door pull rope safety testing method according to the present invention, and is only one embodiment of the present invention. The method is used for a safety door pull rope safety testing structure, which includes a plurality of uprights and a safety door formed by a plurality of liftable pull ropes disposed between two adjacent uprights.

[0039] First, let's explain the safety gate. Taking a high-speed rail platform as an example, the safety gate, formed by the pillars and the ropes connecting the two pillars, is installed on the platform. The following explanation also uses a high-speed rail platform as an example, but it does not exclude the possibility of the platform being a subway station, a regular vehicle platform, or even a bus station. When a vehicle (or train, hereinafter referred to as a vehicle) enters the station, passengers waiting on the platform may be at risk of falling onto the platform and being run over or squeezed into the gap between the vehicle and the platform. Therefore, safety gates are installed on the platform. After the vehicle comes to a complete stop, the safety gates open, allowing passengers to get on and off the vehicle. After passengers have finished getting on and off, the safety gates close, allowing the vehicle to leave the station again. This protects passengers behind the safety gates when the vehicle enters and exits the station, effectively reducing the risk of falling onto the platform.

[0040] The safety gate structure includes several columns installed on the platform and a safety gate formed by a liftable rope installed between two adjacent columns. Of course, two columns and the rope between the two columns form a safety gate body, and multiple safety gate bodies together constitute a complete safety gate. For example, 31 columns are used to form 30 safety gate bodies to protect the entire 500-meter platform. The width of each safety gate body is about 16 meters, which means the length of the rope is about 16 meters. This application only uses one platform safety gate body as an example for explanation, but all gate bodies on the entire platform are tested for breakage at the same time.

[0041] Of course, there should be at least two guy ropes between the two pillars. The distance between any two guy ropes should not be greater than the emergency passage distance for a person to pass without touching the obstacle (generally around 30cm). The distance between the bottom guy rope and the platform ground should not be greater than the distance between any two guy ropes. For example, there are 6 guy ropes between the two pillars. The bottom guy rope is about 20cm from the ground to prevent suitcases or basketballs from falling off the platform. The distance between any two of the top guy ropes is about 30cm, so that the height of the top guy rope from the ground is 170cm, which can effectively prevent pedestrians from crossing directly (we assume that ordinary passengers are not high jumpers and cannot climb over without touching the guy ropes).

[0042] The safety gate is installed at a certain distance from the platform edge. This distance is to protect personnel behind the ropes when a vehicle exceeds its limits, preventing collisions between people and vehicles. It also prevents people's arms from passing through the gaps between adjacent ropes and colliding with the vehicle when it enters or exits the station. The space between the safety gate and the platform edge is both a redundant space and an intrusion zone. Intrusion into this zone is prohibited except when the vehicle is completely stopped. The ropes in the safety gate are in the lowered state. After the vehicle enters the station and comes to a complete stop, the ropes are raised until the lowest rope is at least 2 meters above the platform ground, allowing pedestrians to pass under the ropes to board or alight from the vehicle. After pedestrians have boarded or alighted, the ropes are lowered again to block pedestrians before the vehicle leaves the station.

[0043] Therefore, the safety door's pull ropes must be kept taut to prevent someone from deliberately spreading the two pull ropes and passing through the safety door between them to reach the intrusion area. At the same time, the pull ropes must not break. If one pull rope breaks, a large space will be created at the break point, and someone may take the opportunity to pass through the safety door to reach the intrusion area.

[0044] This invention discloses a safety detection method for a safety door pull cord, designed to prevent passengers from crossing the safety door and reaching the intrusion area when the pull cord breaks. The method includes the following steps:

[0045] S1: Determine whether the difference in tension between the ends of two adjacent ropes is not less than the first preset difference; if so, proceed to step S2; otherwise, do not perform the operation.

[0046] When the safety gate is in operation, all pull ropes are guaranteed to be of the same specification and all pull ropes are taut between the two posts. Therefore, theoretically, the tension values ​​at the ends of all pull ropes between the two posts are not much different. In fact, it can be said that when the pull ropes are in the same position, the tension at their ends will be exactly the same. Furthermore, the tension at both ends of each pull rope is also the same. If there are n pull ropes, the tension at the ends of the two posts and the n pull ropes, a total of 2n, is the same.

[0047] If the difference in tension between the ends of two adjacent ropes is too large and not less than the first preset difference, then at least one rope has abnormal tension and needs further testing, and step S2 is executed.

[0048] It should be noted that in this invention, the difference in tension value is calculated on the same side of the ends of two adjacent pull ropes. If there are n pull ropes, then only the tension value between one side of these n pull ropes and a column is detected. There are only n tension values, that is, only (n-1) sets of differences in tension values ​​between the ends of two adjacent pull ropes. If the difference in any set of tension values ​​is not less than the first preset difference, step S2 is executed.

[0049] The definition of the first preset difference is very important. The first preset difference is the difference in tension between whether the pull rope is horizontal and taut. That is, there are two pull ropes. The first pull rope is horizontally set and taut between the two posts (the degree of tautness is that the displacement of the middle of the pull rope is not greater than the safe displacement. The safe displacement of each platform is preset, for example, 5cm). The second pull rope breaks at the connection with the post, causing the pull rope to sag naturally (by default, the pull rope sags completely and generates the full weight of the pull rope). There is a difference in tension at the ends of the two pull ropes. The minimum value of the difference in tension at the ends of the two pull ropes is the first preset difference.

[0050] Since the tension of the taut rope is much greater than the weight of the rope itself, the difference between the tension at the end of the second rope near the left end of the column and the tension at the end of the first taut rope when the second rope breaks is the minimum value, which is the first preset difference.

[0051] If the difference in tension between the ends of two adjacent pull ropes is too large and not less than the first preset difference, then there must be an abnormal tension at at least one pull rope, which has exceeded the natural state of the pull rope, and further testing is required. Step S2 should be executed.

[0052] S2: Determine whether the difference between the tension values ​​at the ends of two adjacent pull ropes is not greater than the second preset difference; if so, issue an abnormal alarm; otherwise, do not perform the operation.

[0053] When the difference in tension between the ends of two adjacent pull ropes is not less than the first preset difference, besides the pull rope breaking, there are two other possibilities: either the pull rope was being pulled by a passenger, or the two ends of the pull rope did not rise and fall synchronously during the raising and lowering of the safety door, causing the pull rope to tilt. In fact, regardless of which of the two possibilities is true, the pull rope itself has been displaced. In particular, if a passenger pulls the pull rope so that the difference in tension between the ends of two adjacent pull ropes is not less than the first preset difference, it exceeds the limit of the behavior of "normally holding the pull rope" and constitutes violent pulling. Moreover, it is impossible for one person to pull all the pull ropes at the same time. In order to avoid the above possible interference, it is necessary to further verify whether the safety door pull rope is broken, and at this time, it is necessary to verify whether there is a normal pull rope.

[0054] Specifically, it is determined whether the difference in tension value between the ends of two adjacent pull ropes is not greater than the second preset difference value; that is, if the difference in tension value between the ends of two adjacent pull ropes is small, which is a normal tension difference under the condition of the pull rope itself swaying, then it means that two pull ropes are in normal condition, and the situation of "the pull ropes not rising and falling synchronously at both ends when the safety door is raised and lowered, causing the pull ropes to tilt" can be directly ruled out. Then, an abnormal alarm needs to be issued for the abnormal pull rope mentioned in step S1.

[0055] Among these features, issuing an abnormal alarm can also serve as a reminder in the case of "the rope being grabbed and pulled by a passenger," prompting the passenger to immediately stop the violent pulling on the rope.

[0056] It is important to note that there is a simultaneous relationship here. That is, while performing step S1, the difference in tension values ​​at the ends of two adjacent ropes is not less than the first preset difference, there is also a situation where performing step S2, the difference in tension values ​​at the ends of two adjacent ropes is not greater than the second preset difference. In other words, there are two situations at the same time: rope abnormality and rope normality. At this time, an abnormality alarm needs to be issued in time to notify the platform staff to conduct an inspection and further determine whether the rope is broken and whether repair is needed.

[0057] The definition of the second preset difference is also very important. The second preset difference is the difference in tension between the pull ropes and the pull ropes. That is, there are two pull ropes. The first pull rope is connected between the two columns and is horizontally set and taut. The second pull rope is connected between the two columns but is not taut. It sags in the middle and the amount of sag just reaches the preset safe displacement of the platform. Then there is a difference in the tension at the ends of the two pull ropes. The maximum value of the difference in tension at the ends of the two pull ropes is the second preset difference.

[0058] Based on the definitions of the first preset difference and the second preset difference, it is clear that the first preset difference is greater than the second preset difference.

[0059] This allows for immediate and effective handling of any abnormalities in the safety door pull cord, effectively preventing the risk of passengers taking advantage of a broken cord to pass through the safety door.

[0060] This invention provides a safety detection method for the pull rope of a safety gate. The pull rope is tension-sensing at its end. If the tension difference between the ends of two adjacent pull ropes is large while the tension difference between the ends of another set of two adjacent pull ropes is small, it is considered that there is a possibility of rope breakage. A rope breakage alarm is issued to remind staff to eliminate the risk and prevent anyone from taking the opportunity to pass through the safety gate, thus ensuring that the safety gate has a high level of security.

[0061] Example 2, still as Figure 1 As shown, this is only one embodiment of the present invention. Based on the first embodiment, in the safety door pull rope safety detection method of the present invention, the safety door column is provided with a slider for connecting to the end of the pull rope and a motor for driving the slider to slide, and the column is provided with a controller.

[0062] Before executing step S1, establish electrical connections between the controllers on the columns at both ends of the safety gate and obtain the lifting stroke positions of the two sliders at both ends of the pull rope in real time. Control the motor to ensure that the height difference between the two ends of the pull rope is not greater than the third preset difference value. This ensures that both ends of each pull rope are at the same height, and the two ends of the pull rope are synchronously raised and lowered in real time when the safety gate is raised and lowered, and the pull rope is in a horizontal tension setting.

[0063] Furthermore, the slider is provided with a tension sensor for connection with the pull rope; the tension sensor is electrically connected to the controller;

[0064] Therefore, when performing steps S1 and S2, the controller obtains the tension value at the end of the pull rope through the tension sensor.

[0065] Of course, before performing step S1, a first preset difference is generated based on the length and material of the pull rope;

[0066] Before performing step S2, a second preset difference is generated based on the length and material of the pull rope.

[0067] It should be noted that when performing step S1, the specific steps are as follows:

[0068] The controller acquires the readings of the tension sensors at the ends of all the ropes on the same side of a column in real time, calculates the difference in tension values ​​between all adjacent ropes, and determines whether the difference in tension values ​​between adjacent ropes is not less than a first preset difference; if so, step S2 is executed; otherwise, no operation is executed.

[0069] Based on this, when executing step S2, the specific steps are as follows:

[0070] Determine whether the difference in tension between two adjacent ropes is not less than a first preset difference and whether the difference in tension between two adjacent ropes is not greater than a second preset difference, and maintain this for a preset time; if so, issue an abnormal alarm; otherwise, do not perform the operation.

[0071] Here, when performing step S1, two adjacent ropes whose tension values ​​differ from each other by a first preset difference are marked as the first group of ropes.

[0072] When performing step S2, the ends of two adjacent pull ropes whose tension values ​​differ by no more than the second preset difference are marked as the second group of pull ropes;

[0073] When performing step S2, a preset time value is generated based on the minimum distance between any rope in the first group of ropes and any rope in the second group of ropes.

[0074] Specifically, during step S2, if the situation occurs where "the difference in tension between two adjacent ropes is not less than a first preset difference, and the difference in tension between two adjacent ropes is not greater than a second preset difference," then the minimum distance between any rope in the first group and any rope in the second group is immediately obtained, a preset time value is generated, and timing is performed. If the situation of "the difference in tension between two adjacent ropes is not less than the first preset difference, and the difference in tension between two adjacent ropes is not greater than the second preset difference" continues for the preset time value, then an abnormal alarm is issued. The default alarm is a broken rope alarm. Conversely, if there is no "difference in tension between two adjacent ropes not less than the first preset difference and difference between two adjacent ropes not greater than the second preset difference", or if there is "difference in tension between two adjacent ropes not less than the first preset difference and difference between two adjacent ropes not greater than the second preset difference" but the situation returns to normal within a short period of time, then it is due to the short-term influence of the safety door ropes, i.e., accidental pulling of the ropes by a person, and the pulling has stopped, so no abnormal alarm is needed.

[0075] The second group of ropes can have multiple groups. We still select the minimum distance between any rope in the second group and any one of the two ropes in the first group. Interestingly, it is possible that one of the ropes in the first group and one of the ropes in the second group are the same rope. That is, ropes 5 and 6 are ropes in the first group, and ropes 6 and 7 are ropes in the second group. In this case, the minimum distance between any rope in the first group and any rope in the second group is zero. Therefore, a constant needs to be added to the preset time value.

[0076] That is, the preset time value t = m * k + T; where m is the minimum distance between any rope in the first group and any rope in the second group, k is the preset coefficient, and T is the added constant time value. Since the smaller the minimum distance, the greater the sensing error, and the longer the continuous detection is required, k is a negative number, so that the preset time value is inversely proportional to the "minimum distance between any rope in the first group and any rope in the second group".

[0077] In this invention, the pull rope has two ends, each of which is connected to a post;

[0078] When performing step S2, the uprights at both ends of the two ropes whose tension values ​​are not less than the first preset difference are simultaneously tested;

[0079] Determine whether the difference in tension between two adjacent ropes on either of the two pillars is not greater than a second preset difference; if so, issue an abnormal alarm; otherwise, do not perform any operation.

[0080] In other words, for n pull ropes, there are n tension values ​​between the left end of the rope and the column, and n tension values ​​between the right end and another column. That is, there are (n-1) sets of tension differences between adjacent two rope ends on the left end and (n-1) sets of tension differences between adjacent two rope ends on the right end, for a total of (2n-2) sets of tension differences between adjacent two rope ends. If any rope has a situation where "the difference between the tension values ​​of two adjacent ropes is not less than the first preset difference", then it is necessary to judge whether there is at least one set of tension differences between adjacent two rope ends that is not greater than the second preset difference. If so, an abnormal alarm will be issued.

[0081] Finally, an alarm is installed on the column;

[0082] When performing step S2, an abnormal alarm is issued via an alarm.

[0083] This invention provides a safety detection method for the pull rope of a safety gate. The pull rope is tension-sensing at its end. If the tension difference between the ends of two adjacent pull ropes is large while the tension difference between the ends of another set of two adjacent pull ropes is small, it is considered that there is a possibility of rope breakage. A rope breakage alarm is issued to remind staff to eliminate the risk and prevent anyone from taking the opportunity to pass through the safety gate, thus ensuring that the safety gate has a high level of security.

[0084] In embodiment three, this application also provides an apparatus including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor is installed on an existing security door and executes the computer program, it implements the security door pull rope safety detection method provided in one of the implementations of embodiment one or two.

[0085] Example 4: This application provides a computer storage medium storing a computer program, which includes program instructions. When the program instructions are executed by a processor, they can implement a safety door pull rope safety detection method as described in Example 1 or 2.

[0086] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0087] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0089] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0090] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0091] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0092] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0093] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of embodiments of this disclosure upon considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A safety door pull rope safety testing method, used for a safety door pull rope safety testing structure, the structure comprising a plurality of uprights and a safety door formed by a plurality of liftable pull ropes disposed between two adjacent uprights; Its features are, The method includes the following steps: S1: Determine whether the difference in tension between the ends of two adjacent ropes is not less than the first preset difference; if so, proceed to step S2; otherwise, do not perform the operation. S2: Determine whether the difference between the tension values ​​at the ends of two adjacent pull ropes is not greater than the second preset difference; if so, issue an abnormal alarm; otherwise, do not perform the operation. The first preset difference is greater than the second preset difference.

2. The safety detection method for a safety door pull rope according to claim 1, characterized in that: The safety gate's upright is equipped with a slider for connecting to the end of the pull rope and a motor for driving the slider to slide, and a controller is also provided on the upright. Before executing step S1, establish electrical connections between the controllers on the columns at both ends of the safety gate, and obtain the lifting stroke positions of the two sliders at both ends of the pull rope in real time. Control the motor to ensure that the height difference between the two ends of the pull rope is not greater than the third preset difference value.

3. The safety detection method for a safety door pull rope according to claim 2, characterized in that: The slider is equipped with a tension sensor for connection with the pull rope; the tension sensor is electrically connected to the controller; During steps S1 and S2, the controller obtains the tension value at the end of the pull rope through the tension sensor.

4. The safety detection method for a safety door pull rope according to claim 1, characterized in that: Before performing step S1, a first preset difference is generated based on the length and material of the pull rope; Before performing step S2, a second preset difference is generated based on the length and material of the pull rope.

5. The safety detection method for a safety door pull rope according to claim 3, characterized in that: When performing step S1, the specific steps are as follows: The controller acquires the readings of the tension sensors at the ends of all the ropes on the same side of a column in real time, calculates the difference in tension values ​​between all adjacent ropes, and determines whether the difference in tension values ​​between adjacent ropes is not less than a first preset difference; if so, step S2 is executed; otherwise, no operation is executed.

6. The safety detection method for a safety door pull rope according to claim 5, characterized in that: When performing step S2, the specific steps are as follows: Determine whether the difference in tension between the ends of two adjacent pull ropes is not less than a first preset difference and whether the difference in tension between the ends of two adjacent pull ropes is not greater than a second preset difference, and maintain this for a preset time; if so, issue an abnormal alarm; otherwise, do not perform the operation.

7. A safety door pull rope safety testing method according to claim 6, characterized in that: When performing step S1, two adjacent ropes whose tension values ​​differ from each other by a first preset difference are marked as the first group of ropes. When performing step S2, the ends of two adjacent pull ropes whose tension values ​​differ by no more than the second preset difference are marked as the second group of pull ropes; When performing step S2, a preset time value is generated based on the minimum distance between any rope in the first group of ropes and any rope in the second group of ropes.

8. A safety door pull rope safety testing method according to claim 5, characterized in that: The pull rope has two ends, each of which is connected to a post; When performing step S2, the uprights at both ends of the two ropes whose tension values ​​are not less than the first preset difference are simultaneously tested; Determine whether the difference in tension between the ends of two adjacent ropes on either of the two pillars is not greater than a second preset difference; if so, issue an abnormal alarm; otherwise, do not perform the operation.

9. A safety door pull rope safety testing method according to claim 1, characterized in that: An alarm is installed on the column; When performing step S2, an abnormal alarm is issued via an alarm.

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