Ultra-high-speed elevator test safety protection method, device and equipment and storage medium

Abstract

The invention discloses an ultra-high-speed elevator test safety protection method, device and equipment and a storage medium, and relates to the technical field of special equipment tests.The ultra-high-speed elevator test safety protection method comprises the steps that when an elevator test device conducts a free falling body test, a real-time position signal and a real-time speed signal of a test cage are collected; performing speed triggering judgment and height triggering judgment according to the real-time speed signal to obtain a speed judgment result and a height judgment result; a safety gear control signal is generated according to the speed judgment result or the height judgment result to control the starting state of the electric safety gear; according to the method, the position and the speed of a cage of an elevator testing device are collected in real time when the elevator testing device is in a free falling body test, whether safety tongs of the elevator testing device take effect or not is judged doubly according to the position and the speed, and when the safety tongs do not take effect, an electric safety tong additionally arranged on the elevator testing device is triggered to brake. Damage of the elevator testing device caused by braking failure of the safety clamp during testing is effectively avoided, and the testing progress can be fully guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of special equipment testing, and in particular to ultra-high-speed elevator testing safety protection methods, devices, equipment and storage media. Background Art

[0002] With the rapid development of high-rise and super-high-rise buildings in my country, the demand for ultra-high-speed elevators as efficient vertical transportation tools is increasing. As a safety protection device for ultra-high-speed elevators to prevent falling and overspeed descent, the progressive safety clamp must pass the free fall test to complete the formal test certification before it can be put into production and use. When the rated speed of the elevator reaches ultra-high speed, due to the uncertainty of the braking performance of the test safety clamp sample, the risk of the safety clamp free fall test becomes very high: At present, the free fall test of the elevator safety clamp generally only relies on the pit bottom buffer as the last line of protection. If the sample brakes unsuccessfully and squats to the bottom, it will cause devastating damage to the test device and the sample, resulting in the inability to continue the test smoothly. Therefore, the lack of reliable and complete safety protection methods has greatly restricted the development of ultra-high-speed elevator safety clamps.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of this application is to provide an ultra-high-speed elevator test safety protection method, device, equipment and storage medium, aiming to solve the technical problem that the failure of the free fall test of the elevator safety clamp leads to damage to the elevator test device, affecting the test efficiency and test safety.

[0005] To achieve the above-mentioned purpose, the present application proposes a super-high-speed elevator test safety protection method, which is applied to a super-high-speed elevator test safety protection system, wherein the super-high-speed elevator test safety protection system comprises an elevator test device, an electrical safety clamp and a signal acquisition device, wherein the elevator test device comprises a test cage; The ultra-high-speed elevator test safety protection method comprises: When the elevator test device performs a free fall test, the real-time position signal and the real-time speed signal of the test cage are collected based on the signal collection device; Perform speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and perform altitude trigger judgment according to the real-time position signal to obtain an altitude judgment result; generating a safety clamp control signal according to the speed judgment result or the height judgment result; The activation state of the electrical safety clamp is controlled based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

[0006] In one embodiment, performing speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and performing altitude trigger judgment according to the real-time position signal to obtain an altitude judgment result, includes: Obtaining the real-time speed of the elevator test device according to the real-time speed signal, and obtaining the real-time height of the elevator test device according to the real-time position signal; Determine a reference speed in a first preset curve according to the real-time altitude, compare the real-time speed with the reference speed to obtain a speed determination result, the first preset curve including a one-to-one corresponding altitude-speed curve; The real-time altitude is compared with the reference altitude to obtain an altitude determination result.

[0007] In one embodiment, determining a reference speed in a first preset curve according to the real-time height, and comparing the real-time speed with the reference speed to obtain a speed determination result includes: Matching the real-time altitude with the altitude in the first preset curve, and taking the speed corresponding to the successfully matched altitude as a reference speed; When the real-time speed is greater than or equal to the reference speed, taking the speed abnormality as the speed judgment result; When the real-time speed is less than the reference speed, the speed is considered normal as the speed determination result.

[0008] In one embodiment, before determining the reference speed in the first preset curve according to the real-time height and comparing the real-time speed with the reference speed to obtain the speed determination result, the method further includes: Constructing a first reference speed curve according to a preset braking deceleration parameter; Obtaining a preset speed redundancy coefficient or a preset speed redundancy amount; The first preset curve is obtained by multiplying each speed value in the first reference speed curve by a preset speed redundancy coefficient or by adding the preset speed redundancy to each speed value in the first reference speed curve to obtain the first preset curve.

[0009] In one embodiment, determining a reference height in a second preset curve according to the real-time speed, and comparing the real-time height with the reference height to obtain a height determination result includes: Obtaining a velocity peak value in a second preset curve, and obtaining a reference height according to the velocity peak value; When the real-time altitude is less than or equal to the reference altitude, taking the altitude abnormality as the altitude determination result; When the real-time altitude is greater than the reference altitude, the altitude is considered normal as the altitude determination result.

[0010] In one embodiment, the safety clamp control signal includes a start signal and a hold signal; the speed judgment result includes an abnormal speed and a normal speed; the height judgment result includes an abnormal height and a normal height; The generating of the safety clamp control signal according to the speed judgment result or the height judgment result comprises: When the speed judgment result is that the speed is abnormal or the height judgment result is that the height is abnormal, generating a start signal; When the speed judgment result is that the speed is normal and the height judgment result is that the height is normal, generating a holding signal; The startup state includes an activation state and a waiting state; The controlling the activation state of the electrical safety clamp based on the safety clamp control signal comprises: When the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state; When the safety clamp control signal is the holding signal, the start state of the electrical safety clamp is adjusted to a waiting state.

[0011] In one embodiment, when the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state, comprises: When the safety clamp control signal is the start signal, generating an electrical signal based on the start signal; activating the electrical safety clamp according to the electrical signal so that the start-up state of the electrical safety clamp is adjusted to an activated state; When the starting state of the electrical safety clamp is an activated state, braking is performed by the electrical safety clamp to achieve safety protection for the elevator testing device.

[0012] In addition, to achieve the above-mentioned purpose, the present application also proposes an ultra-high-speed elevator test safety protection device, the ultra-high-speed elevator test safety protection device comprising: A data acquisition module, used for collecting real-time position signals and real-time speed signals of the test cage based on a signal acquisition device when the elevator test device performs a free fall test; A judgment module, used to perform a speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and perform a height trigger judgment according to the real-time position signal to obtain a height judgment result; A safety protection module, used for generating a safety clamp control signal according to the speed judgment result or the height judgment result; The safety protection module is further used to control the start-up state of the electrical safety clamp based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

[0013] In addition, to achieve the above-mentioned purpose, the present application also proposes an ultra-high-speed elevator test safety protection device, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the ultra-high-speed elevator test safety protection method as described above.

[0014] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the ultra-high-speed elevator test safety protection method as described above are implemented.

[0015] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, it implements the steps of the ultra-high-speed elevator test safety protection method as described above.

[0016] One or more technical solutions proposed in the present application have at least the following technical effects: by real-time acquisition of the position and speed of the cage of the elevator test device during the free fall test, a dual judgment is made through the position and speed whether the safety clamp of the elevator test device is effective; if it is judged that the safety clamp is not effective, the electrical safety clamp additionally provided in the elevator test device is triggered in time, and the electrical safety clamp is triggered by an electrical signal to brake the elevator test device, thereby effectively avoiding damage to the elevator test device caused by failure of the safety clamp braking during the test, and being able to fully guarantee the test progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A flow chart of the first embodiment of the ultra-high-speed elevator test safety protection method of the present application; Figure 2A schematic diagram of a super-high-speed elevator test safety protection system provided in Example 1 of the super-high-speed elevator test safety protection method of the present application; Figure 3 A flow chart of the second embodiment of the ultra-high-speed elevator test safety protection method provided in this application; Figure 4 A schematic diagram of a first preset curve provided in Example 2 of the ultra-high-speed elevator test safety protection method of the present application; Figure 5 A schematic diagram of a second preset curve provided for the second embodiment of the ultra-high-speed elevator test safety protection method of the present application; Figure 6 This is a schematic diagram of the module structure of the ultra-high-speed elevator test safety protection device according to an embodiment of the present application; Figure 7 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the ultra-high-speed elevator testing safety protection method in the embodiment of the present application. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0021] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The main solution of the embodiment of the present application is: when the elevator testing device performs a free fall test, the real-time position signal and real-time speed signal of the test cage are collected; speed trigger judgment and height trigger judgment are performed according to the real-time speed signal to obtain speed judgment results and height judgment results; and a safety clamp control signal is generated according to the speed judgment result or the height judgment result to control the start-up state of the electrical safety clamp.

[0023] In this embodiment, for ease of description, the following description is made by taking the identification of ultra-high-speed elevator test safety protection equipment as the execution subject.

[0024] Since the progressive safety clamp in the prior art is used as a safety protection device for ultra-high-speed elevators to prevent falling and overspeed descent, it must pass the free fall test to complete formal test certification before it can be put into production and use. When the rated speed of the elevator reaches ultra-high speed, due to the uncertainty of the braking performance of the test safety clamp sample, the risk of the safety clamp free fall test becomes very high: At present, the free fall test of the elevator safety clamp generally only relies on the pit bottom buffer as the last line of protection. If the sample brakes unsuccessfully and squats to the bottom, it will cause devastating damage to the test device and the sample, resulting in the inability to continue the test smoothly. Therefore, the lack of a reliable and complete safety protection method has greatly restricted the development of ultra-high-speed elevator safety clamps.

[0025] The present application provides a solution, which collects the position and speed of the cage of the elevator test device in real time during the free fall test, and uses the position and speed to dually judge whether the safety clamp of the elevator test device is effective. When the safety clamp is not effective, the electrical safety clamp brake additionally provided in the elevator test device is triggered, thereby effectively avoiding damage to the elevator test device due to failure of the safety clamp braking during the test, and being able to fully guarantee the test progress.

[0026] It can be seen from the above embodiments that the present application discloses a safety protection method for ultra-high-speed elevator testing: when the elevator testing device performs a free fall test, the real-time position signal and real-time speed signal of the test cage are collected; speed trigger judgment and height trigger judgment are performed according to the real-time speed signal to obtain speed judgment results and height judgment results; a safety clamp control signal is generated according to the speed judgment result or the height judgment result to control the start-up state of the electrical safety clamp; the method collects the position and speed of the cage of the elevator testing device during the free fall test in real time, and performs a dual judgment on whether the safety clamp of the elevator testing device is effective through the position and speed, and triggers the electrical safety clamp brake additionally provided in the elevator testing device when the safety clamp is not effective, thereby effectively avoiding damage to the elevator testing device caused by failure of the safety clamp brake during the test, and can fully guarantee the test progress.

[0027] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, an ultra-high-speed elevator test safety protection device, etc. The following takes the ultra-high-speed elevator test safety protection device as an example to illustrate this embodiment and the following embodiments.

[0028] Based on this, the embodiment of the present application provides a super high speed elevator test safety protection method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the ultra-high-speed elevator testing safety protection method of the present application.

[0029] In this embodiment, the ultra-high-speed elevator test safety protection method includes steps S10 to S40: Step S10, when the elevator testing device performs a free fall test, the real-time position signal and real-time speed signal of the test cage are collected based on the signal collection device.

[0030] It should be noted that the ultra-high-speed elevator test safety protection method is applied to an ultra-high-speed elevator test safety protection system. The ultra-high-speed elevator test safety protection system includes an elevator test device, an electrical safety clamp and a signal acquisition device. The elevator test device includes a test cage.

[0031] It is worth noting that the free fall test of the progressive safety clamp of the elevator is carried out in the shaft of the test tower. The test process is as follows: the test cage system is lifted to a certain height, the unhooking system is released, and when the test cage system (simulating the mass of the elevator fully loaded car) falls freely to the specified action speed, the test safety clamp is pulled and the test cage system is stopped on the guide rail. However, when the rated speed of the applied test safety clamp reaches an ultra-high speed, if the braking force of the test safety clamp is insufficient, it is not enough to rely solely on the protection of the pit bottom buffer, which will cause devastating damage to the test device and samples, resulting in the inability to continue the test smoothly.

[0032] In the specific implementation, the schematic diagram of the ultra-high-speed elevator test safety protection system can be referred to Figure 2 , Figure 2 The middle protection safety clamp is the electrical safety clamp in this embodiment. Figure 2 The figure shows the test tower shaft and pit floor for free fall test, which specifically include lifting system, guide rail, guide system, unhooking system, protective safety clamp, test cage system, position signal acquisition system, test safety clamp, buffer and logic control system. The position signal acquisition system is associated with the logic control system, and the signal collected by the position signal acquisition system is logically judged by the logic control system whether to trigger the safety protection clamp.

[0033] It is understandable that the test cage can be a substitute for the elevator car used in the free fall test, that is, a substitute for the ultra-high-speed elevator car, and the test safety clamp can be a progressive safety clamp for elevators.

[0034] It should be understood that the real-time position signal may refer to the real-time position of the test cage that is constantly changing during the free fall test. The real-time position may be obtained by Figure 2 The real-time speed signal can be obtained by collecting the position signal change of the test cage at a fixed time interval through the position signal system.

[0035] It should be noted that the real-time position signal can be collected in the following ways: Figure 2 The test tower shaft described in the test is provided with a sensor, and when the test cage passes through the sensor, the test cage can be detected, and the position of the sensor detecting the cage passing can be used as the position of the test cage. Similarly, the position interval can be obtained based on two consecutive cage positions, and the time interval between two cage position detections can be obtained by a time detection device, and the cage speed can be obtained based on the time interval and the position interval.

[0036] Step S20, performing a speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and performing a height trigger judgment according to the real-time position signal to obtain a height judgment result.

[0037] It should be noted that the speed trigger judgment can be made by obtaining the descent speed of the test cage based on the real-time speed signal, and the speed judgment result can include normal speed and abnormal speed.

[0038] It should be further explained that the height judgment signal can be the real-time position of the test cage obtained through the real-time position signal, and whether the test safety clamp is successfully braked is judged based on the cage position. The height judgment result can include abnormal height and normal height.

[0039] It should be understood that speed judgment is to see whether the speed values ​​corresponding to each height are too fast. If the speed is too fast, there is a risk of failure of the free fall test and falling to the ground. Auxiliary braking is required through electrical safety clamps to protect the safety of the cage.

[0040] It should be understood that when the cage is subjected to a free fall test, braking is performed by means of a test safety clamp, and the test cage will stop when braking is successful. The height judgment is performed based on the real-time height to determine whether the test safety clamp of the test cage is successfully braked.

[0041] Step S30, generating a safety clamp control signal according to the speed judgment result or the height judgment result.

[0042] It should be noted that the safety clamp control signal may include a start signal and a hold signal. The start signal may control the electrical safety clamp to brake (e.g. Figure 2 The holding signal can control the electrical safety clamp to maintain the current state without braking.

[0043] It should be noted that the speed trigger judgment and the height trigger judgment are performed simultaneously.

[0044] In a feasible implementation, step S30 may include steps A31-A32: Step A31, when the speed judgment result is that the speed is abnormal or the height judgment result is that the height is abnormal, a start signal is generated.

[0045] It should be noted that when the speed determination result is that the speed is abnormal and the height determination result is that the high speed is abnormal, a start signal is also generated.

[0046] It is understandable that the start signal may be generated by the position signal acquisition system and sent to the protective safety clamp. The protective safety clamp may be an electrically controlled safety clamp, and the start of the electrical safety clamp is controlled by the start signal.

[0047] It should be understood that the start signal is sent to the electrical safety clamp, which starts working and brakes the test cage, thereby effectively preventing the test cage from squatting and causing damage to the test device.

[0048] Step A32, when the speed judgment result is that the speed is normal and the height judgment result is that the height is normal, a hold signal is generated.

[0049] It is understandable that the hold signal is generated only when the speed judgment result is normal and the height judgment is normal at the same time. The hold signal is also generated by the position signal acquisition system, and the hold signal is sent to the electrical safety clamp, and the electrical safety clamp remains in an inactive state.

[0050] It should be understood that the holding signal keeps the electrical safety clamp from braking, so as to avoid affecting the test effect of the test safety clamp.

[0051] In this embodiment, the protective safety clamp is double-triggered and controlled by the speed judgment result and the position judgment result, and the ultra-high-speed elevator safety clamp free fall test is secondary protected, which effectively avoids the damage of the test equipment due to the failure of the test safety clamp test.

[0052] The above are only feasible implementations of step S30 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S30.

[0053] Step S40: controlling the start-up state of the electrical safety clamp based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

[0054] It should be noted that the starting state includes an activation state and a waiting state. In the starting state, the test cage is braked, while in the waiting state, no braking is performed and the cage waits for receiving the next signal.

[0055] In a feasible implementation, step S40 may include steps A41-A42: Step A41, when the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state.

[0056] It should be noted that when the safety clamp control signal is the start signal, an electrical signal is generated based on the start signal; the electrical safety clamp is activated according to the electrical signal so that the start state of the electrical safety clamp is adjusted to the activation state; when the start state of the electrical safety clamp is the activation state, braking is performed by the electrical safety clamp to achieve safety protection of the elevator testing device.

[0057] It should be emphasized that the safety clamp control is carried out through electrical signals rather than direct mechanical control, which enables more flexible and sensitive control space and rapid response braking, thereby timely and effectively braking the test cage.

[0058] Step A42, when the safety clamp control signal is the holding signal, adjusting the start state of the electrical safety clamp to a waiting state.

[0059] It is understandable that the control signal of the electrical safety clamp corresponds to the state of the electrical safety clamp one by one, and different states of the electrical safety clamp correspond to different operations.

[0060] In this embodiment, the electrical safety clamp is controlled to enter different states through two conditions of the safety clamp control signal. When you want to start the electrical safety clamp, you can control it through an electrical signal, which can respond more quickly, so that the electrical safety clamp can be braked to protect the safety of the test cage equipment.

[0061] The above are only feasible implementations of step S40 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S40.

[0062] In the specific implementation, a set of electrically triggered protective safety clamps is added to the test cage system. During the entire free fall test process, the height of the test cage system is monitored in real time by using a position signal acquisition system (such as an absolute shaft position signal sensor, etc.) and transmitted to the logic control system. The logic control system obtains the real-time speed signal through calculation, and at the same time monitors and determines whether the real-time height and speed of the test cage system are abnormal (reaching the set trigger conditions). If so, a signal will be output to trigger the protective safety clamp to stop the test cage system on the guide rail, thereby achieving the purpose of protecting the test device.

[0063] The present embodiment provides a safety protection method for ultra-high-speed elevator testing, which collects the position and speed of the cage of the elevator testing device in real time during the free fall test, and dually judges whether the safety clamp of the elevator testing device is effective through the position and speed. If it is judged that the safety clamp is not effective, the electrical safety clamp additionally provided in the elevator testing device is triggered in time, and the electrical safety clamp is triggered by an electrical signal to brake the elevator testing device, thereby effectively avoiding damage to the elevator testing device caused by failure of the safety clamp braking during the test, and can fully guarantee the test progress.

[0064] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 , step S20 also includes steps S21 to S23: Step S21, obtaining the real-time speed of the elevator testing device according to the real-time speed signal, and obtaining the real-time height of the elevator testing device according to the real-time position signal.

[0065] It is understandable that the real-time speed can be calculated based on the real-time speed signal generated by the elevator testing device. Specifically, the real-time speed of the test cage system can be obtained by differentiating the displacement signal transmitted by the position signal acquisition system.

[0066] It should be understood that the real-time altitude may be obtained based on the altitude corresponding to the real-time position signal. For example, the location where the signal is collected may be used as the real-time altitude corresponding to the real-time position signal.

[0067] Step S22, determining a reference speed in a first preset curve according to the real-time altitude, and comparing the real-time speed with the reference speed to obtain a speed determination result, wherein the first preset curve includes a one-to-one corresponding altitude-speed curve.

[0068] It should be noted that a first reference speed curve is constructed according to the preset braking deceleration parameters; a preset speed redundancy coefficient or a preset speed redundancy is obtained; each speed value in the first reference speed curve is multiplied by the preset speed redundancy coefficient to obtain the first preset curve or each speed value in the first reference speed curve is added to the preset speed redundancy to obtain the first preset curve.

[0069] It should be noted that the first reference speed curve may be a speed curve of a test cage being braked and decelerated at an average deceleration of 0.2g, where g is the acceleration of gravity. The first reference speed curve may include a one-to-one corresponding test cage height and test cage speed.

[0070] It should be emphasized that the preset speed redundancy coefficient and the preset speed redundancy amount can be preset manually, wherein the preset speed redundancy coefficient is greater than 1, and the preset speed redundancy amount is greater than 0.

[0071] It should be noted that the first preset curve diagram can refer to Figure 4 According to the requirements of elevator safety technical specifications and standards, the average deceleration during the progressive safety clamp braking process should be within the range of [0.2g, 1.0g]. Therefore, the protection speed curve "first preset curve" is set based on the speed curve "first reference speed curve" in which the test cage is braked and decelerated with an average deceleration of 0.2g.

[0072] It should be emphasized that Figure 4 The setting of the first preset curve can refer to the following formula: V2=k·V1 Wherein, k is a speed redundancy coefficient (k>1, which can be set), V2 represents a first preset curve, V1 represents a first reference speed curve, and k represents a preset speed redundancy coefficient.

[0073] Furthermore, the setting of the first preset curve may also refer to the following formula: V2=V1+∆V Among them, ∆V is the speed margin (∆V>0, can be set).

[0074] In a feasible implementation, step S22 may include steps A221 to A223: Step A221, matching the real-time altitude with the altitude in the first preset curve, and taking the speed corresponding to the successfully matched altitude as the reference speed.

[0075] It is understandable that the real-time altitude is the altitude collected by the position signal collection system, and the speed calculated based on the altitude is used as the real-time speed.

[0076] It should be understood that the real-time speed is matched with the corresponding test cage speed in the first preset curve to obtain the reference speed, or the real-time speed is substituted into the first preset curve to obtain the reference speed.

[0077] Step A222, when the real-time speed is greater than or equal to the reference speed, taking the speed abnormality as the speed judgment result.

[0078] It should be understood that when comparing the real-time speed with the reference speed, if the real-time speed is greater than or equal to the reference speed, it can be considered that the test safety clamp does not play an effective braking role at this time, resulting in the test cage being at a faster descending speed. It is necessary to start the electrical safety clamp for auxiliary braking to prevent the test cage from falling to the bottom and causing damage to the test cage.

[0079] Step A223, when the real-time speed is less than the reference speed, the speed is considered normal as the speed judgment result.

[0080] It should be understood that when the real-time speed is less than the reference speed, it can be considered that the test safety clamp has effectively braked the cage undergoing the free fall test and stopped descending, and the cage speed decreases, and it can be judged that the speed is normal.

[0081] In this embodiment, a real-time speed signal is obtained by using the real-time position signal collected by the position signal acquisition system, so as to further determine the reference speed corresponding to the position based on the position signal, and determine whether the real-time speed of the position is higher than the reference speed based on the reference speed, so as to determine whether the speed is normal, and determine whether to start the electric cage to assist braking based on the speed status. This can effectively brake the test cage when the test safety clamp fails, thereby avoiding damage to the test cage and other test equipment.

[0082] The above are only feasible implementations of step S22 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S22.

[0083] Step S23, comparing the real-time altitude with the reference altitude to obtain an altitude determination result.

[0084] It is understandable that the reference height can be the height at which the test safety clamp is started and the final safety clamp controls the test cage to stop braking, or it can be the height that has been tested and set empirically and when the test cage is lower than the moving height, it proves that the test safety clamp has failed to brake.

[0085] In the specific implementation, the real-time height of the test cage system is monitored according to the displacement signal transmitted by the position signal acquisition system, and then the real-time height signal is compared and judged with the set protection height value (reference height) in real time. If there is a height abnormality (reaching the height trigger condition), the output signal controls the protection safety clamp to operate for protection.

[0086] In a feasible implementation, step S23 may include steps A231 to A233: Step A231, obtaining a speed peak value in the second preset curve, and obtaining a reference height according to the speed peak value.

[0087] It should be noted that the second preset curve can be a speed curve for braking and deceleration at an average deceleration of 0.2g in time. The second preset curve can refer to Figure 5 , Figure 5 The broken line on the left in the middle represents the second preset curve, the dotted line on the right represents the reference height, Vmax is the maximum speed during the test, H0 is the initial height of the test cage, H1 is the height after deceleration and stopping with an average deceleration of 0.2g, and H2 is the set protection height value (i.e., reference height).

[0088] It should be understood that the peak speed can be the maximum speed during the test; according to the requirements of elevator safety technical specifications and standards, the average deceleration during progressive safety clamp braking should be in the range of [0.2g, 1.0g] (g is the acceleration of gravity), so the protection height value H2 is set based on the height value H1 after the test cage is decelerated and stopped with an average deceleration of 0.2g.

[0089] It should be noted that the reference height can be obtained according to the peak speed by referring to the following formula: H2=H1-∆H=H0-V 2 max / 2 / gV 2 max / 2 / (0.2g)-∆H Among them, ∆H is the height redundancy, which can be adjusted according to actual needs and is generally greater than 0.

[0090] Step A232, when the real-time altitude is less than or equal to the reference altitude, taking the altitude abnormality as the altitude judgment result.

[0091] It is understandable that when the real-time height is compared with the reference height and the reference height is less than or equal to the reference height, it can be understood that the braking of the test safety clamp is invalid at this time, or the braking effect of the test safety clamp cannot stop the test cage safely at this time, and the height judgment result at this time is regarded as a height abnormality.

[0092] Step A233, when the real-time altitude is greater than the reference altitude, the altitude is considered normal as the altitude judgment result.

[0093] It is understandable that when the real-time height is greater than the reference height, it can be temporarily understood that the test safety clamp is braking and may not be fully effective; it may also not be at a position where it can be determined that the height is abnormal.

[0094] It should be understood that the height trigger judgment and speed trigger judgment can be carried out in real time, while constantly detecting the height and speed of the test cage during the free fall test, and continuously performing height trigger judgment and speed trigger judgment. Any abnormal speed judgment and / or abnormal height judgment will trigger the electrical safety clamp to brake, and abnormal reminders can also be issued.

[0095] In this embodiment, the height of the test cage is detected in real time to determine whether the real-time height is lower than the minimum protection height of the cage. Based on the judgment of the minimum protection height of the cage and the real-time height of the test cage, it can be ensured that when the cage height is lower than the minimum protection height, the electrical safety clamp is triggered for protective braking, thereby avoiding damage to the test cage caused by braking failure of the test safety clamp.

[0096] The above are only feasible implementations of step S23 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S23.

[0097] The present embodiment provides a safety protection method for ultra-high-speed elevator testing, which performs a free-fall test on the ultra-high-speed elevator safety clamp by double-triggering the safety clamp, provides real-time protection for the entire ultra-high-speed elevator safety clamp test process based on the real-time speed of the test device, and provides secondary protection for the test device before it bottoms out based on the real-time height of the test device, fully and comprehensively ensuring that if the safety clamp fails during the test, the electrical safety clamp can be started in time for auxiliary braking, thereby ensuring the safety of the cage test equipment.

[0098] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the ultra-high-speed elevator testing safety protection method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0099] This application also provides a super high speed elevator test safety protection device, please refer to Figure 6, the ultra-high-speed elevator test safety protection device comprises: The data acquisition module 10 is used to collect the real-time position signal and real-time speed signal of the test cage based on the signal acquisition device when the elevator test device performs a free fall test; A judgment module 20, configured to perform a speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and perform a height trigger judgment according to the real-time position signal to obtain a height judgment result; A safety protection module 30, used to generate a safety clamp control signal according to the speed judgment result or the height judgment result; The safety protection module 30 is further used to control the start-up state of the electrical safety clamp based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

[0100] The ultra-high-speed elevator test safety protection device provided by the present application adopts the ultra-high-speed elevator test safety protection method in the above-mentioned embodiment, which can solve the technical problem that the elevator safety clamp free fall test failure causes the elevator test device to be damaged, affecting the test efficiency and test safety. Compared with the prior art, the beneficial effects of the ultra-high-speed elevator test safety protection device provided by the present application are the same as the beneficial effects of the ultra-high-speed elevator test safety protection method provided by the above-mentioned embodiment, and the other technical features in the ultra-high-speed elevator test safety protection device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0101] In one embodiment, the judgment module 20 is further used to obtain the real-time speed of the elevator test device according to the real-time speed signal, and obtain the real-time height of the elevator test device according to the real-time position signal; Determine a reference speed in a first preset curve according to the real-time altitude, compare the real-time speed with the reference speed to obtain a speed determination result, the first preset curve including a one-to-one corresponding altitude-speed curve; The real-time altitude is compared with the reference altitude to obtain an altitude determination result.

[0102] In one embodiment, the judgment module 20 is further used to match the real-time height with the height in the first preset curve, and use the speed corresponding to the successfully matched height as the reference speed; When the real-time speed is greater than or equal to the reference speed, taking the speed abnormality as the speed judgment result; When the real-time speed is less than the reference speed, the speed is considered normal as the speed determination result.

[0103] In one embodiment, the judgment module 20 is further used to construct a first reference speed curve according to a preset braking deceleration parameter; Obtaining a preset speed redundancy coefficient or a preset speed redundancy amount; The first preset curve is obtained by multiplying each speed value in the first reference speed curve by a preset speed redundancy coefficient or by adding the preset speed redundancy to each speed value in the first reference speed curve to obtain the first preset curve.

[0104] In one embodiment, the judgment module 20 is further used to obtain a speed peak value in the second preset curve, and obtain a reference height according to the speed peak value; When the real-time altitude is less than or equal to the reference altitude, taking the altitude abnormality as the altitude determination result; When the real-time altitude is greater than the reference altitude, the altitude is considered normal as the altitude determination result.

[0105] In one embodiment, the safety protection module 30 is further configured to generate a start signal when the speed judgment result is an abnormal speed or the height judgment result is an abnormal height; When the speed judgment result is that the speed is normal and the height judgment result is that the height is normal, generating a holding signal; The startup state includes an activation state and a waiting state; The controlling the activation state of the electrical safety clamp based on the safety clamp control signal comprises: When the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state; When the safety clamp control signal is the holding signal, the start state of the electrical safety clamp is adjusted to a waiting state.

[0106] In one embodiment, the safety protection module 30 is further configured to generate an electrical signal based on the start signal when the safety clamp control signal is the start signal; activating the electrical safety clamp according to the electrical signal so that the start-up state of the electrical safety clamp is adjusted to an activated state; When the starting state of the electrical safety clamp is an activated state, braking is performed by the electrical safety clamp to achieve safety protection for the elevator testing device.

[0107] The present application provides an ultra-high-speed elevator test safety protection device, which includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the ultra-high-speed elevator test safety protection method in the above-mentioned embodiment 1.

[0108] Reference below Figure 7 , which shows a schematic diagram of the structure of the ultra-high-speed elevator test safety protection equipment suitable for implementing the embodiment of the present application. The ultra-high-speed elevator test safety protection equipment in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 7 The ultra-high-speed elevator test safety protection equipment shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0109] like Figure 7 As shown, the ultra-high-speed elevator test safety protection equipment may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. Various programs and data required for the operation of the ultra-high-speed elevator test safety protection equipment are also stored in RAM1004. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the ultra-high-speed elevator test safety protection device to communicate wirelessly or wired with other devices to exchange data. Although the ultra-high-speed elevator test safety protection device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0110] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0111] The ultra-high-speed elevator test safety protection device provided by the present application adopts the ultra-high-speed elevator test safety protection method in the above-mentioned embodiment, which can solve the technical problem that the elevator safety clamp free fall test failure causes the elevator test device to be damaged, affecting the test efficiency and test safety. Compared with the prior art, the beneficial effects of the ultra-high-speed elevator test safety protection device provided by the present application are the same as the beneficial effects of the ultra-high-speed elevator test safety protection method provided by the above-mentioned embodiment, and the other technical features in the ultra-high-speed elevator test safety protection device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0112] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0113] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0114] The present application provides a computer-readable storage medium having computer-readable program instructions (i.e., computer programs) stored thereon, and the computer-readable program instructions are used to execute the ultra-high-speed elevator test safety protection method in the above-mentioned embodiment.

[0115] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0116] The computer-readable storage medium may be included in the ultra-high-speed elevator test safety protection device; or it may exist independently without being assembled into the ultra-high-speed elevator test safety protection device.

[0117] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the ultra-high-speed elevator test safety protection equipment, the ultra-high-speed elevator test safety protection equipment: when the elevator test device performs a free fall test, the real-time position signal and real-time speed signal of the test cage are collected based on the signal acquisition device; a speed trigger judgment is performed according to the real-time speed signal to obtain a speed judgment result, and a height trigger judgment is performed according to the real-time position signal to obtain a height judgment result; a safety clamp control signal is generated according to the speed judgment result or the height judgment result; and the start-up state of the electrical safety clamp is controlled based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

[0118] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0119] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0120] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0121] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned ultra-high-speed elevator test safety protection method, and can solve the technical problem that the elevator safety clamp free fall test failure causes the elevator test device to be damaged, affecting the test efficiency and test safety. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the ultra-high-speed elevator test safety protection method provided in the above-mentioned embodiment, and will not be repeated here.

[0122] The present application also provides a computer program product, including a computer program, which implements the steps of the ultra-high-speed elevator test safety protection method as described above when executed by a processor.

[0123] The computer program product provided by the present application can solve the technical problem that the elevator safety clamp free fall test failure causes the elevator test device to be damaged, affecting the test efficiency and test safety. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the ultra-high-speed elevator test safety protection method provided by the above embodiment, and will not be repeated here.

[0124] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for safety protection of ultra-high-speed elevator testing, characterized in that: The ultra-high-speed elevator test safety protection method is applied to an ultra-high-speed elevator test safety protection system, wherein the ultra-high-speed elevator test safety protection system comprises an elevator test device, an electrical safety clamp and a signal acquisition device, wherein the elevator test device comprises a test cage; The ultra-high-speed elevator test safety protection method comprises: When the elevator test device performs a free fall test, the real-time position signal and the real-time speed signal of the test cage are collected based on the signal collection device; Perform speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and perform altitude trigger judgment according to the real-time position signal to obtain an altitude judgment result; generating a safety clamp control signal according to the speed judgment result or the height judgment result; The activation state of the electrical safety clamp is controlled based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

2. The ultra-high-speed elevator test safety protection method according to claim 1, characterized in that: The method of performing speed triggering judgment according to the real-time speed signal to obtain a speed judgment result, and performing altitude triggering judgment according to the real-time position signal to obtain an altitude judgment result, comprises: Obtaining the real-time speed of the elevator test device according to the real-time speed signal, and obtaining the real-time height of the elevator test device according to the real-time position signal; Determine a reference speed in a first preset curve according to the real-time altitude, compare the real-time speed with the reference speed to obtain a speed determination result, the first preset curve including a one-to-one corresponding altitude-speed curve; The real-time altitude is compared with the reference altitude to obtain an altitude determination result.

3. The ultra-high-speed elevator test safety protection method according to claim 2, characterized in that: The step of determining a reference speed in a first preset curve according to the real-time height, and comparing the real-time speed with the reference speed to obtain a speed determination result includes: Matching the real-time altitude with the altitude in the first preset curve, and taking the speed corresponding to the successfully matched altitude as a reference speed; When the real-time speed is greater than or equal to the reference speed, taking the speed abnormality as the speed judgment result; When the real-time speed is less than the reference speed, the speed is considered normal as the speed determination result.

4. The ultra-high-speed elevator test safety protection method according to claim 2, characterized in that: Before determining the reference speed in the first preset curve according to the real-time height and comparing the real-time speed with the reference speed to obtain the speed determination result, the method further includes: Constructing a first reference speed curve according to a preset braking deceleration parameter; Obtaining a preset speed redundancy coefficient or a preset speed redundancy amount; The first preset curve is obtained by multiplying each speed value in the first reference speed curve by a preset speed redundancy coefficient or by adding the preset speed redundancy to each speed value in the first reference speed curve to obtain the first preset curve.

5. The ultra-high-speed elevator test safety protection method according to claim 2, characterized in that: The step of comparing the real-time altitude with the reference altitude to obtain an altitude determination result includes: Obtaining a velocity peak value in a second preset curve, and obtaining a reference height according to the velocity peak value; When the real-time altitude is less than or equal to the reference altitude, taking the altitude abnormality as the altitude determination result; When the real-time altitude is greater than the reference altitude, the altitude is considered normal as the altitude determination result.

6. The ultra-high-speed elevator test safety protection method according to claim 1, characterized in that: The safety clamp control signal includes a start signal and a hold signal; the speed judgment result includes an abnormal speed and a normal speed; the height judgment result includes an abnormal height and a normal height; The generating of the safety clamp control signal according to the speed judgment result or the height judgment result comprises: When the speed judgment result is that the speed is abnormal or the height judgment result is that the height is abnormal, generating a start signal; When the speed judgment result is that the speed is normal and the height judgment result is that the height is normal, generating a holding signal; The startup state includes an activation state and a waiting state; The controlling the activation state of the electrical safety clamp based on the safety clamp control signal comprises: When the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state; When the safety clamp control signal is the holding signal, the start state of the electrical safety clamp is adjusted to a waiting state.

7. The ultra-high-speed elevator test safety protection method according to claim 6, characterized in that: When the safety clamp control signal is the start signal, adjusting the start state of the electrical safety clamp to an activation state, and controlling the electrical safety clamp to brake based on the activation state, comprises: When the safety clamp control signal is the start signal, generating an electrical signal based on the start signal; activating the electrical safety clamp according to the electrical signal so that the start-up state of the electrical safety clamp is adjusted to an activated state; When the starting state of the electrical safety clamp is an activated state, braking is performed by the electrical safety clamp to achieve safety protection for the elevator testing device.

8. An ultra-high-speed elevator test safety protection device, characterized in that: The ultra-high-speed elevator test safety protection device comprises: A data acquisition module, used for collecting real-time position signals and real-time speed signals of the test cage based on a signal acquisition device when the elevator test device performs a free fall test; A judgment module, used to perform a speed trigger judgment according to the real-time speed signal to obtain a speed judgment result, and perform a height trigger judgment according to the real-time position signal to obtain a height judgment result; A safety protection module, used for generating a safety clamp control signal according to the speed judgment result or the height judgment result; The safety protection module is further used to control the start-up state of the electrical safety clamp based on the safety clamp control signal, so that the electrical safety clamp performs safety protection based on the safety clamp control signal.

9. An ultra-high-speed elevator test safety protection device, characterized in that: The device includes: a memory, a processor, and an ultra-high-speed elevator test safety protection program stored in the memory and executable on the processor, wherein the ultra-high-speed elevator test safety protection program is configured to implement the ultra-high-speed elevator test safety protection method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores an ultra-high-speed elevator test safety protection program, and when the ultra-high-speed elevator test safety protection program is executed by the processor, the ultra-high-speed elevator test safety protection method according to any one of claims 1 to 7 is implemented.

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