Method for detecting braking torque of transportation equipment and related device

Abstract

The invention relates to a braking torque detection method of transportation equipment and a related device. The method comprises the steps that the running state of the transportation equipment is monitored in real time, and when the transportation equipment meets the torque detection condition, a braking signal is generated; in response to the braking signal, carrying out braking operation on the transportation equipment, and synchronously detecting real-time operation parameters of a host of the transportation equipment in a braking period; and characteristic parameters of the transportation equipment are obtained, and the actual braking torque of the transportation equipment is determined according to the characteristic parameters of the transportation equipment and the real-time operation parameters. Compared with the prior art, by detecting the braking torque, whether the transportation equipment needs to be repaired and maintained or not can be determined, so that the braking part can be maintained, adjusted, replaced and the like in time, the situation of braking failure is reduced and avoided, and the operation safety of the transportation equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of operation detection of transportation equipment, and in particular to a braking torque detection method and related devices for transportation equipment. Background Art

[0002] With the acceleration of urbanization, various types of transportation equipment, especially box elevators and escalators, have become indispensable public facilities in modern life. Their safety and reliability are directly related to the safety of people's lives and property. In the operation of these transportation equipment, the braking system plays a vital role. It is not only responsible for achieving smooth braking during normal operation, but also ensuring that the equipment can stop quickly and safely in an emergency to prevent accidents. The performance of the braking system, especially the accuracy and stability of the braking torque, is one of the key indicators for measuring the safety performance of transportation equipment.

[0003] In actual applications, due to brake design defects, wear or improper maintenance, the braking torque may not meet the specified standards, and the brake may also become stuck. If these problems are not discovered and handled in time, they will seriously threaten the safe operation of transportation equipment and may cause serious accidents such as elevator falls, top impacts and shearing.

[0004] At present, many elevator control systems still use the traditional braking torque detection method, that is, to evaluate the braking torque of the brake by manually loading a specific load and observing whether the traction wheel rotates. This method is not only cumbersome and inefficient, but also has great subjectivity and errors. It cannot accurately reflect the actual performance of the braking system under different working conditions, and it cannot predict potential failure risks. In addition, the braking torque is usually calculated by directly measuring the braking distance, but this method only judges the braking torque by the braking distance, and can often only perform qualitative analysis, but cannot achieve quantitative and accurate online detection; and the magnitude of the braking torque is not only related to the braking distance, but also to many factors such as the friction coefficient of the braking material and the structure of the brake. Therefore, judging the braking torque by the braking distance alone is not comprehensive enough. Due to the influence of various factors, the conditions of each test may be different, so it is difficult to achieve standardized testing, which makes it difficult to compare and analyze the results between different tests, which brings difficulties to the evaluation and improvement of braking performance. Summary of the invention

[0005] Based on this, it is necessary to provide a method and related device for detecting the braking torque of transportation equipment, which can accurately and repeatably detect the braking torque of transportation equipment, in order to solve the above technical problems.

[0006] In a first aspect, the present application provides a method for detecting a braking torque of a transportation device, the method comprising:

[0007] Monitor the operating status of the transport equipment in real time, and generate a braking signal when the transport equipment meets the torque detection condition;

[0008] In response to the braking signal, performing a braking operation on the transport equipment, and synchronously detecting real-time operating parameters of a host machine of the transport equipment during braking;

[0009] The characteristic parameters of the transportation equipment are acquired, and the actual braking torque of the transportation equipment is determined according to the characteristic parameters of the transportation equipment and the real-time operation parameters.

[0010] In one embodiment, the real-time monitoring of the operating status of the transport equipment and generating a braking signal when the transport equipment meets the torque detection condition includes:

[0011] Monitor the operating status of the transportation equipment in real time and generate a first judgment signal; the operating status includes an unmanned elevator stop state and a detection switch trigger state

[0012] In response to the first judgment signal, determine whether the transportation equipment is in an unmanned stop state, and if so, generate a second judgment signal, otherwise, return to the step of monitoring the operation state of the transportation equipment in real time;

[0013] In response to the second judgment signal, it is determined whether the transport equipment is in a detection switch triggering state. If so, the braking signal is generated; otherwise, the process returns to the step of monitoring the operating state of the transport equipment in real time.

[0014] In one embodiment, the braking period includes a first braking stage and a second braking stage connected to the first braking stage, and the real-time operating parameters include a first deceleration of the host in the first braking stage and a second deceleration in the second operating stage;

[0015] The step of performing a braking operation on the transport equipment in response to the braking signal and synchronously detecting real-time operating parameters of a host of the transport equipment during braking comprises:

[0016] In response to the braking signal, controlling the transport equipment to perform a braking operation;

[0017] Detecting a first operating speed of a host of the transport equipment at a start time of the first braking phase, a second operating speed at an end time of the first braking phase, and a first duration of the first braking phase, and determining a first deceleration of the host according to the first operating speed, the second operating speed, and the first duration;

[0018] Detect the third operating speed of the main engine of the transport equipment at the end of the second braking phase and the second duration of the second braking phase, and determine the second deceleration of the main engine according to the second operating speed, the third operating speed and the second duration.

[0019] In one embodiment, the acquiring characteristic parameters of the transport equipment and determining the actual braking torque of the transport equipment according to the characteristic parameters of the transport equipment and the real-time operating parameters includes:

[0020] Acquiring characteristic parameters of the transport equipment; the characteristic parameters include main engine inertia, driving wheel inertia, transmission efficiency, and driving wheel diameter;

[0021] Determining a first torque in the first braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the first deceleration;

[0022] Determining a second torque in the second braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the second deceleration;

[0023] The actual braking torque is determined based on the first acting torque and the second acting torque.

[0024] In one embodiment, after acquiring the characteristic parameters of the transport equipment and determining the actual braking torque of the transport equipment according to the characteristic parameters of the transport equipment and the real-time operating parameters, the method further includes:

[0025] According to the actual braking torque and the standard braking torque of the host machine, a warning or an alarm is given to the braking torque of the brake of the transportation equipment.

[0026] In one embodiment, the alarm or early warning of the braking torque of the brake of the transportation equipment according to the actual braking torque and the standard braking torque of the transportation equipment includes:

[0027] Determining a standard braking torque of the main engine, and determining a torque coefficient between the actual braking torque and the standard braking torque;

[0028] Determine whether the torque coefficient is less than a first warning threshold and greater than or equal to a first alarm threshold, and if so, generate a first warning signal; otherwise, determine whether the torque coefficient is less than the first alarm threshold, and if so, generate a first alarm signal;

[0029] Respond to the first warning signal and issue a braking torque warning, or respond to the first alarm signal and issue a braking torque alarm.

[0030] In one embodiment, after acquiring the characteristic parameters of the transport equipment and determining the actual braking torque of the transport equipment according to the characteristic parameters of the transport equipment and the real-time operating parameters, the method further includes:

[0031] determining an actual braking distance of the transport equipment;

[0032] According to the actual braking distance and the standard braking distance when the transportation equipment is normally stopped, a warning or alarm is issued for the braking distance of the brake of the transportation equipment.

[0033] In one embodiment, the alarm or early warning of the braking distance of the brake of the transport equipment according to the actual braking distance and the standard braking distance of the transport equipment when the transport equipment is normally stopped includes:

[0034] Determining a standard braking distance of the transport equipment, and determining a distance coefficient between the actual braking distance and the standard braking distance;

[0035] Determine whether the distance coefficient is greater than the second warning signal and less than or equal to the second alarm signal, if so, generate a second warning signal, otherwise, determine whether the distance coefficient is greater than a second alarm threshold, if so, generate a second alarm signal;

[0036] Respond to the second warning signal and issue a braking distance warning, or respond to the second alarm signal and issue a braking distance alarm.

[0037] In a second aspect, the present application further provides a braking torque detection device for transportation equipment, the device comprising:

[0038] A status monitoring module, used to monitor the operating status of the transport equipment in real time and generate a braking signal when the transport equipment meets the torque detection condition;

[0039] A braking control and parameter detection module, for responding to the braking signal, performing a braking operation on the transport equipment, and synchronously detecting real-time operating parameters of the host of the transport equipment during braking;

[0040] The braking torque determination module is used to obtain the characteristic parameters of the transportation equipment and determine the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and the real-time operation parameters.

[0041] In one embodiment, the device further comprises:

[0042] A first warning module is used to alarm or warn the braking torque of the brake of the transportation equipment according to the actual braking torque and the standard braking torque of the host; and / or

[0043] The second warning module is used to determine the actual braking distance of the transportation equipment; and to alarm or warn the braking distance of the brake of the transportation equipment according to the actual braking distance and the standard braking distance when the transportation equipment is normally stopped.

[0044] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method described above when executing the computer program.

[0045] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method described above are implemented.

[0046] In a fifth aspect, the present application also provides a computer program product, including a computer program, which implements the steps of the method described above when executed by a processor.

[0047] The above-mentioned braking torque detection method and related device of the transportation equipment, in the above-mentioned braking torque detection method of the transportation equipment, by real-time monitoring the operating status of the transportation equipment, when the transportation equipment meets the torque detection conditions, a braking signal is generated; in response to the braking signal, the transportation equipment is braked, and the real-time operating parameters of the main engine of the transportation equipment during braking are synchronously detected; and the characteristic parameters of the transportation equipment are obtained, and the actual braking torque of the transportation equipment can be determined according to the characteristic parameters and real-time operating parameters of the transportation equipment, so as to analyze the value of the actual braking torque and determine whether the transportation equipment needs to be repaired and maintained, and the actual braking torque of the transportation equipment can be detected multiple times within a period of time. By analyzing multiple actual braking torques, the change trend of the actual braking torque of the transportation equipment can be determined, which can then be used as the basis for the maintenance of the transportation equipment, so as to facilitate the reasonable formulation of the maintenance plan of the transportation equipment, timely maintenance, adjustment and replacement of braking components, etc., reduce and avoid the occurrence of braking failure, thereby improving the operation safety of the transportation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0049] FIG1 is a diagram showing an application environment of a method for detecting a braking torque of a transport device according to an embodiment;

[0050] Figure 2 A schematic diagram of a flow chart of a method for detecting a braking torque of a transport device in one embodiment;

[0051] Figure 3 is a flow chart of step S201 in one embodiment;

[0052] Figure 4 is a flow chart of step S202 in one embodiment;

[0053] Figure 5 It is the speed change curve of the transport equipment during braking.

[0054] Figure 6 is a flow chart of step S203 in one embodiment;

[0055] Figure 7 A schematic diagram of a flow chart of a method for detecting a braking torque of a transport device in another embodiment;

[0056] Figure 8 A schematic diagram of a flow chart of a method for detecting a braking torque of a transport device in another embodiment;

[0057] Fig. 9 is a structural block diagram of a braking torque detection device for transportation equipment in another embodiment;

[0058] FIG. 10 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0060] The braking torque detection method of the transportation equipment provided in the embodiment of the present application can be applied to the application environment shown in FIG. 1. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. Specifically, the terminal 102 obtains the data collected by various sensors set on the transportation equipment and uploads it to the server 104. The server 104 analyzes and processes the uploaded data to determine the operating state of the transportation equipment, so as to control the braking system of the transportation equipment to brake the transportation equipment in a timely manner, and collect the real-time operating parameters of the transportation equipment during the braking of the transportation equipment, and then calculate the actual braking torque of the transportation equipment according to the real-time operating parameters of the transportation equipment and the characteristic parameters of the transportation equipment stored in advance, so as to realize the detection of the torque of the transportation equipment. Among them, the terminal 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, projection devices, etc. Portable wearable devices can be smart watches, smart bracelets, etc. The server 104 may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides cloud computing services.

[0061] In an exemplary embodiment, Figure 2 As shown, a method for detecting the braking torque of a transport device is provided, and the method is applied to the server in FIG. 1 as an example for description, and includes the following steps S201 to S203. Among them:

[0062] Step S201 , monitoring the operating status of the transport equipment in real time, and generating a braking signal when the transport equipment meets the torque detection condition.

[0063] The transportation equipment refers to an electromechanical device that can, under the drive of power, use a box running along a rigid guide rail or a ladder running along a fixed line to lift or transport people and goods in parallel. In this embodiment, the transportation equipment referred to mainly includes passenger elevators, escalators, moving walkways, etc. It is understandable that in some other embodiments, the transportation equipment can also be electromechanical equipment such as cable cars and cargo elevators.

[0064] The operating status of the transportation equipment refers to the status of the transportation equipment at the current moment determined by analyzing the status data of the transportation equipment.

[0065] Among them, the torque detection condition is used to determine whether the transportation equipment can brake at the current moment to perform torque detection on the transportation equipment, so that the control system of the transportation equipment generates a braking signal when the transportation equipment meets the torque detection condition, and triggers the braking of the transportation equipment through the braking signal and performs subsequent torque detection.

[0066] Specifically, the server monitors the operating status of the transportation equipment in real time by acquiring the status data of the transportation equipment collected by the terminal to determine the operating status of the transportation equipment, and compares the operating status of the transportation equipment with the preset torque detection condition. When the operating status of the transportation equipment meets the torque detection condition, it indicates that the torque detection operation can be performed on the transportation equipment at this time, and the control system of the transportation equipment is controlled to generate a braking signal. Otherwise, the status data is continuously acquired and the operating status of the transportation equipment is monitored.

[0067] Step S202, in response to the braking signal, braking the transport equipment, and synchronously detecting the real-time operating parameters of the host machine of the transport equipment during the braking period.

[0068] Among them, braking the transport equipment means controlling the transport equipment to run at a set speed and then stopping the transport equipment urgently. The set speed is generally the rated speed of the transport equipment. It is understandable that in some other embodiments, the set speed may also be a speed customized by the maintenance personnel, which may be greater than the rated speed or less than the rated speed.

[0069] The braking period refers to the period from the start of braking and deceleration of the transportation equipment to the stop.

[0070] The implementation operation parameters refer to the operation data of the transport equipment during braking, which are used to indicate the movement changes of the transport equipment during braking.

[0071] Specifically, the server responds to the braking signal, controls the transport equipment to accelerate upward or downward to the set speed, and then performs an emergency stop on the transport equipment, so that the transport equipment is reduced from the initial speed of the stop (that is, the set speed) to zero, and then stops the transport equipment; during this period, the server continuously obtains the real-time operating parameters of the transport equipment from the start of braking to the stop collected by the terminal.

[0072] Step S203, acquiring characteristic parameters of the transportation equipment, and determining the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and real-time operating parameters.

[0073] The characteristic parameters of the transport equipment refer to the parameters of the transport equipment itself that are related to the design of the transport equipment. In this embodiment, since the characteristic parameters of the transport equipment are known in the early stage of the design of the transport equipment and can be directly obtained through the user manual or brand name of the transport equipment, in specific implementation, the characteristic parameters of the transport equipment usually do not need to be collected in real time but are pre-stored in the data storage system of the server, and can be directly obtained or called when needed.

[0074] The actual braking torque of the transport equipment refers to the torque that the brake can generate under the actual operating conditions of the transport equipment to reduce the rotation speed of the rotating parts.

[0075] Specifically, the server obtains the characteristic parameters of the transport equipment stored in advance from the data storage system, and calculates the actual braking torque of the transport equipment based on the obtained characteristic parameters and the real-time operating parameters of the transport equipment from the start of braking to the stop collected by the terminal.

[0076] In the above-mentioned method for detecting the braking torque of the transport equipment, by real-time monitoring the operating status of the transport equipment, a braking signal is generated when the transport equipment meets the torque detection conditions; in response to the braking signal, the transport equipment is braked, and the real-time operating parameters of the host of the transport equipment during braking are synchronously detected; and the characteristic parameters of the transport equipment are obtained, and the actual braking torque of the transport equipment can be determined based on the characteristic parameters and the real-time operating parameters of the transport equipment, so as to analyze the value of the actual braking torque and determine whether the transport equipment needs to be repaired or maintained. In addition, the actual braking torque of the transport equipment can be detected multiple times within a period of time. By analyzing multiple actual braking torques, the change trend of the actual braking torque of the transport equipment can be determined, which can be used as a basis for the repair and maintenance of the transport equipment, so as to facilitate the reasonable formulation of the repair and maintenance plan of the transport equipment, timely maintenance, adjustment and replacement of the brake components, etc., reduce and avoid the occurrence of brake failure, and thus improve the operation safety of the transport equipment.

[0077] In an exemplary embodiment, Figure 3 As shown, step S201 includes steps S301 to S303. Among them:

[0078] Step S301, monitor the operating status of the transportation equipment in real time and generate a first judgment signal.

[0079] The operating state of the transport equipment includes but is not limited to an unmanned stop state and a detection switch trigger state. It is understandable that in some other embodiments, the operating state of the transport equipment may also be a maintenance state, etc., depending on the detection target or detection method. In specific implementation, the unmanned stop state and the detection switch trigger state of the transport equipment may be collected by various sensors, image acquisition devices, and mechanical structures provided on the transport equipment.

[0080] The first judgment signal is used to judge the unmanned elevator stop state of the transportation equipment.

[0081] Specifically, the server monitors the unmanned elevator stop state and the detection switch trigger state of the transportation equipment at the current moment in real time, and generates a first judgment signal while monitoring to judge the unmanned elevator stop state of the transportation equipment.

[0082] Step S302, in response to the first judgment signal, judge whether the transportation equipment is in an unmanned stop state, if so, generate a second judgment signal, otherwise, return to the step of real-time monitoring of the operation status of the transportation equipment.

[0083] Among them, the unmanned elevator stop state refers to the passenger (object) state and movement state (including rising, falling, and stopping) of the transportation equipment at the current moment. The unmanned elevator stop means that the transportation equipment is neither carrying people nor objects at this time and is in a stopped state.

[0084] The second judgment signal is used to judge the triggering state of the detection switch of the transportation equipment.

[0085] Specifically, the server responds to the first judgment signal, and determines whether the transportation equipment is in a stopped state with neither people nor goods on board, based on the monitored operating status of the transportation equipment at the current moment. If the transportation equipment is in an unmanned stopped state, it indicates that no one is using the transportation equipment at this time, that is, the transportation equipment is not working. At this time, a second judgment signal is generated and step S303 is continued to be executed. If the transportation equipment is not in an unmanned stopped state, it indicates that the transportation equipment is being used at this time. At this time, return to step S301 and continue to monitor the operating status of the transportation equipment.

[0086] Step S303, in response to the second judgment signal, determine whether the transport equipment is in the detection switch triggering state, if so, generate a braking signal, otherwise, return to the step of real-time monitoring of the operating state of the transport equipment.

[0087] Among them, the trigger state of the detection switch refers to the trigger state of the stop button on the transportation equipment and the trigger state of the diagnostic function of the transportation equipment control system, etc. The trigger state of the stop button refers to whether the stop button of the transportation equipment is pressed (i.e. triggered), and the trigger state of the diagnostic function of the transportation equipment control system refers to whether the diagnostic function switch of the transportation equipment is turned on (i.e. triggered).

[0088] Specifically, the server responds to the second judgment signal, and judges whether the stop button on the transportation equipment is pressed or the diagnostic function switch of the transportation equipment control system is turned on according to the trigger state of the detection switch of the transportation equipment at the current moment. If the stop button on the transportation equipment is pressed or the diagnostic function switch of the transportation equipment control system is turned on, it indicates that there is a need for braking torque detection, and it is necessary to perform braking torque detection on the transportation equipment. At this time, a control signal is generated to continue to execute step S202. If the stop button on the transportation equipment is not pressed and the diagnostic function switch of the transportation equipment control system is not turned on, it indicates that the unmanned elevator stop state at this time is only that no one is using the transportation equipment and there is no need for braking torque detection, and there is no need to perform braking torque detection on the transportation equipment. At this time, return to step S301 to continue monitoring the operating status of the transportation equipment.

[0089] In the specific implementation of this embodiment, the first judgment signal and the second judgment signal can also be generated synchronously. The server synchronously judges the unmanned elevator stop state and the detection switch trigger state of the transportation equipment according to the first judgment signal and the second judgment signal, and generates a control signal when both conditions are met.

[0090] In this embodiment, by monitoring the operating status of the transportation equipment in real time and judging whether the transportation equipment is in an unmanned stopped state and whether the detection switch is triggered, the judgment of the unmanned stopped state of the transportation equipment can ensure that no one is using the transportation equipment during torque detection, and can ensure the safety of the torque detection process to avoid casualties and material damage. The judgment of the triggering state of the detection switch of the transportation equipment can ensure that torque detection is performed when necessary, which can avoid waste of resources and will not affect the normal use requirements of the transportation equipment.

[0091] In an exemplary embodiment, Figure 4 As shown, step S202 includes steps S401 to S403. Among them:

[0092] Step S401, in response to a braking signal, controlling the transport equipment to perform a braking operation.

[0093] Specifically, the server responds to the braking signal, controls the transport equipment to accelerate upward or downward movement to a set speed, and then performs an emergency stop on the transport equipment.

[0094] Step S402, detecting a first operating speed of the host of the transport equipment at the start time of the first braking phase, a second operating speed at the end time of the first braking phase, and a first duration of the first braking phase; determining a first deceleration of the host according to the first operating speed, the second operating speed, and the first duration.

[0095] Among them, please refer to Figure 5 , shows the speed change curve of the transport equipment from the start of braking to the stop. The speed change curve has an inflection point after the brake is engaged. Before the inflection point, the speed of the transport equipment decreases slowly. After the inflection point, due to the brake engagement, the speed decreases quickly until it stops. Therefore, the braking period is divided into a first braking stage and a second braking stage connected to the first braking stage; the first braking stage refers to the stage when the brake is engaged but not in effect when the brake starts to work, that is, the stage before the inflection point. At this time, the transport equipment is braked by the first action torque. The first action torque is the torque that the main machine of the transport equipment is subjected to during the rotation process due to structures and factors other than the brake, that is, the resistance torque; the second braking stage refers to the stage after the brake is engaged and acts until it stops, that is, the stage after the inflection point. At this time, the transport equipment is braked by the second action torque. In this stage, the rotation of the main machine is not only hindered by the brake, but also by other structures and factors. That is, the second action torque at this time includes the resistance torque in addition to the braking torque, that is, the braking torque and the resistance torque together constitute the action torque of this stage.

[0096] The real-time operating parameters include a first deceleration of the host in a first braking phase and a second deceleration in a second operating phase.

[0097] Among them, the first operating speed refers to the speed of the host machine when braking starts, the second operating speed refers to the speed of the host machine when the brake is applied, and the first duration refers to the time of the first braking stage, that is, the time for the speed of the host machine to change (decelerate) from the first operating speed to the second operating speed.

[0098] Specifically, the server uses a speed sensor arranged on the host to detect the first operating speed of the host at the start of braking, the second operating speed at the time when the brake is applied, and the first duration for the host's speed to decelerate from the first operating speed to the second operating speed; determines a first speed change according to the first operating speed and the second operating speed, and determines a first deceleration of the host in the first braking stage according to the first speed change and the first duration.

[0099] Exemplarily, the first deceleration of this embodiment is expressed as:

[0100] (1)

[0101] in, is the first deceleration, are the first operating speed and the second operating speed respectively, is the first duration.

[0102] Step S403, detecting the third operating speed of the host of the transport equipment at the end of the second braking phase and the second duration of the second braking phase; determining the second deceleration of the host according to the second operating speed, the third operating speed and the second duration.

[0103] The third operating speed refers to the rotation speed of the main engine when the brake stops the transport equipment, and the second duration refers to the time of the second braking stage, that is, the time for the rotation speed of the main engine to change (decelerate) from the second operating speed to the third operating speed.

[0104] Specifically, the server uses a speed sensor arranged on the host to detect the third operating speed of the host when it is stopped and the second duration for the host's speed to decelerate from the second operating speed to the third operating speed; determines the second speed change according to the second operating speed and the third operating speed, and determines the second deceleration of the host in the second braking stage according to the second speed change and the second duration.

[0105] Exemplarily, the second deceleration of this embodiment is expressed as:

[0106] (2)

[0107] in, is the second deceleration, Divided into the third operating speed, is the second duration.

[0108] In this embodiment, by performing a stopping operation on the transport equipment, the transport equipment can be made to work in a stopping state, which makes it easy to collect real-time operating parameters of the transport equipment during the stopping process, thereby obtaining the speed change of the transport equipment during the stopping process. At the same time, the speed sensors arranged on various components of the transport equipment host can detect the speed of the transport equipment, and based on the relationship between the speed change and time, the deceleration of the transport equipment in two stages can be quickly determined, and data collection and processing are fast and convenient. At the same time, according to the data differences detected by different sensors, it can also be determined whether the sensor is working normally, which is conducive to timely detection of problems.

[0109] In an exemplary embodiment, Figure 6 As shown, step S203 includes steps S601 to S604. Among them:

[0110] Step S601, obtaining characteristic parameters of the transportation equipment.

[0111] Among them, some characteristic parameters of the transport equipment may change greatly as the use time of the transport equipment increases, such as the friction coefficient of the additional brake friction plate, etc., while some may change less as the use time of the transport equipment increases, such as the main engine inertia, transmission ratio, transmission efficiency, number of sprocket teeth, equipment weight, sprocket inertia, etc. In order to reduce the detection error of the braking torque, the characteristic parameters of this embodiment select parameters with less changes, including but not limited to the main engine inertia, drive wheel inertia, transmission efficiency, and drive wheel diameter. It is understandable that in some other embodiments, appropriate characteristic parameters can also be selected according to different detection targets, and this implementation does not specifically limit it.

[0112] Specifically, the server obtains the pre-stored host inertia, driving wheel inertia, transmission efficiency, and driving wheel diameter in the data storage system.

[0113] Step S602, determining the first torque of the first braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the first deceleration.

[0114] Exemplarily, the first acting moment of this embodiment is expressed as:

[0115] (3)

[0116] in, is the first acting moment, is the first deceleration, is the diameter of the equivalent sprocket, is the acceleration due to gravity, are the main engine inertia and the driving wheel inertia, For transmission efficiency.

[0117] Step S603, determining the second torque of the second braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the second deceleration.

[0118] Exemplarily, the second acting torque of this embodiment is expressed as:

[0119] (4)

[0120] in, is the second acting torque, is the second deceleration, is the diameter of the equivalent sprocket, is the acceleration due to gravity, are the main engine inertia and the driving wheel inertia, For transmission efficiency.

[0121] Step S604: determining the actual braking torque according to the first acting torque and the second acting torque.

[0122] Specifically, since the brake holding action is in the second braking stage, that is, the actual braking torque is in the second braking stage, the actual braking torque can be determined based on the first acting torque and the second acting torque.

[0123] Exemplarily, the actual braking torque of this embodiment is expressed as:

[0124] (5)

[0125] in, is the actual braking torque.

[0126] In this embodiment, the first acting torque and the second acting torque of the corresponding stage are determined based on the first deceleration and the second deceleration, and finally the actual braking torque is determined based on the first acting torque and the second acting torque. The value of the braking torque can be accurately obtained and the changing trend of the braking torque can be analyzed, which is convenient for maintenance personnel to repair and maintain the running equipment.

[0127] In an exemplary embodiment, Figure 7 As shown, the above-mentioned method for detecting the braking torque of the transport equipment further includes step S701. Among them:

[0128] Step S701 , early warning or alarming of the braking torque of the brake of the transportation equipment is performed according to the actual braking torque and the standard braking torque of the host machine.

[0129] Among them, the standard braking torque refers to the theoretical braking torque corresponding to when the braking of the transportation equipment meets the standard.

[0130] Among them, the early warning is that the current actual braking torque does not meet the standard (such as national standard) requirements, and the alarm is that the current actual braking torque does not meet the full-load stopping torque.

[0131] Specifically, the server compares the actual braking torque with the standard braking torque to determine whether the actual braking torque meets the standard, and issues a warning or alarm when the actual braking torque does not meet the standard.

[0132] In an exemplary embodiment, step S701 performs a pre-warning or alarm on the braking torque, including:

[0133] Determine the standard braking torque of the main engine, and determine the torque coefficient between the actual braking torque and the standard braking torque; determine whether the torque coefficient is less than the first warning threshold and greater than or equal to the first alarm threshold, if so, generate a first warning signal, otherwise, determine whether the torque coefficient is less than the first alarm threshold, if so, generate a first alarm signal; respond to the first warning signal and perform a braking torque warning, or respond to the first alarm signal and perform a braking torque alarm.

[0134] The torque coefficient represents the proportional coefficient between the actual braking torque and the standard braking torque, that is, the percentage of the actual braking torque that can reach the standard braking torque, that is, the actual braking torque divided by the standard braking torque.

[0135] Among them, the first warning threshold is greater than the first alarm threshold, such as the first warning threshold is preferably 80%. Of course, the first warning threshold can also be 75%, 85% or any suitable value set by the maintenance personnel. The first alarm threshold is preferably 60. Of course, the first alarm threshold can also be 65% or any suitable value set by the maintenance personnel.

[0136] Specifically, first determine the standard braking torque of the main engine, divide the actual braking torque by the standard braking torque to obtain the torque coefficient; compare the torque coefficient with the first warning threshold to determine whether the torque coefficient is less than the first warning threshold and greater than or equal to the first alarm threshold. If the torque coefficient is less than the first warning threshold and greater than or equal to the first alarm threshold, indicating that the braking torque does not meet the standard at this time, a first warning signal is generated to warn the braking torque. Otherwise, continue to determine whether the torque coefficient is less than the first alarm threshold. If the torque coefficient is less than the first alarm threshold, indicating that the braking torque does not meet the braking torque at full load, a first alarm signal is generated to alarm the braking torque. Otherwise, it indicates that the actual braking torque meets the standard and no operation is required.

[0137] In specific implementation, when performing warning and alarm of braking torque, the first warning signal and the first alarm signal can be pushed to the mobile phones or work task lists of maintenance personnel and other personnel by means of message push to maintenance personnel through remote monitoring and other systems. In addition, the actual braking torque detected can also be pushed at the same time, so that the maintenance personnel can use it as a reference standard for torque adjustment, and remind the maintenance personnel to perform operations such as brake arm adjustment and brake pad replacement.

[0138] In this embodiment, by setting the first warning threshold and the first alarm threshold, the torque coefficient is divided into multiple levels, and the actual braking torque detected is compared with the standard braking torque to determine which level the actual braking torque belongs to. In this way, warning or alarm operations are performed, which can timely diagnose whether the brake meets the design and use requirements, thereby ensuring the safe operation of the transportation equipment.

[0139] In an exemplary embodiment, Figure 8 As shown, the above-mentioned method for detecting the braking torque of the transport equipment further includes steps S801 to S802. Among them:

[0140] Step S801, determining the actual braking distance of the transportation equipment.

[0141] Among them, the actual braking distance refers to the distance the transportation equipment moves from the start of braking to the stop.

[0142] Specifically, the server determines the first actual braking distance of the transportation equipment in the first braking stage according to the first running speed, the second running speed and the first deceleration in the above embodiment, and determines the second actual braking distance of the transportation equipment in the second braking stage according to the second running speed, the third running speed and the second deceleration. The actual braking distance of the transportation equipment during the entire braking period can be obtained by adding the first actual braking distance and the second actual braking distance.

[0143] Step S802 , issuing a warning or alarm on the braking distance of the brake of the transportation equipment according to the actual braking distance and the standard braking distance when the transportation equipment stops normally.

[0144] Among them, the standard braking distance refers to the theoretical braking distance when the braking of the transportation equipment meets the standard.

[0145] Among them, the early warning is that the current actual braking distance does not meet the standard (such as national standard) requirements, and the alarm is that the braking torque corresponding to the current actual braking distance does not meet the full-load braking torque.

[0146] Specifically, the server compares the actual braking distance with the standard braking distance to determine whether the actual braking distance meets the standard, and issues a warning or alarm when the actual braking distance does not meet the standard.

[0147] In an exemplary embodiment, step S802 provides a warning or alarm for the braking distance, including:

[0148] Determine the standard braking distance of the transport equipment, and determine the distance coefficient between the actual braking distance and the standard braking distance; determine whether the distance coefficient is greater than the second warning signal and less than or equal to the second alarm signal, if so, generate a second warning signal, otherwise, determine whether the distance coefficient is greater than the second alarm threshold, if so, generate a second alarm signal; respond to the second warning signal and issue a braking distance warning, or respond to the second alarm signal and issue a braking distance alarm.

[0149] Among them, the distance coefficient represents the proportional coefficient between the actual braking distance and the standard braking distance, that is, the actual braking distance can reach a multiple of the standard braking distance, that is, the actual braking distance divided by the standard braking distance.

[0150] Among them, the second warning threshold is smaller than the second alarm threshold, such as the second warning threshold is preferably 2. Of course, the second warning threshold can also be 2.1, 1.9 or any suitable value set by the maintenance personnel, and the second alarm threshold is preferably 3. Of course, the second alarm threshold can also be 3, 2.9 or any suitable value set by the maintenance personnel.

[0151] Specifically, first determine the standard braking distance of the main engine, divide the actual braking distance by the standard braking distance to obtain the distance coefficient; compare the distance coefficient with the second warning threshold to determine whether the distance coefficient is greater than the second warning threshold and less than or equal to the second alarm threshold. If the distance coefficient is greater than the second warning threshold and less than or equal to the second alarm threshold, it indicates that the braking distance does not meet the standard at this time, and then generate a second warning signal to warn the braking distance; otherwise, continue to determine whether the distance coefficient is greater than the second alarm threshold. If the distance coefficient is greater than the second alarm threshold, it indicates that the braking torque corresponding to the braking distance at this time does not meet the braking torque at full load, and then generate a second alarm signal to alarm the braking distance; otherwise, it indicates that the actual braking distance meets the standard and no operation is required.

[0152] In specific implementation, when performing warning and alarm of braking distance, the second warning signal and the second alarm signal can be pushed to the mobile phones or work task lists of maintenance personnel and other personnel by means of message push to maintenance personnel through remote monitoring and other systems. In addition, the actual braking torque detected can also be pushed at the same time, so that the maintenance personnel can use it as a reference standard for torque adjustment, and remind the maintenance personnel to perform operations such as brake arm adjustment and brake pad replacement.

[0153] In this embodiment, by setting a second warning threshold and a second alarm threshold, the distance coefficient is divided into multiple levels, and the actual braking distance detected is compared with the standard braking distance to determine which level the actual braking distance moment belongs to. In this way, a warning or alarm operation is performed, which can timely diagnose whether the brake meets the design and use requirements, thereby ensuring the safe operation of the transportation equipment.

[0154] In specific implementation, there is no order for the execution of step S701, step S801 and step S802 in the above embodiment. Step S701 may be executed first, and then step S801 and step S802, or step S801 and step S802 may be executed first, and then step S701, or step S701 may be executed synchronously with step S801 and step S802. Moreover, in an optional embodiment, step S701 and step S801 and step S802 are not necessary steps, and may not be executed, or may be executed selectively, and this embodiment does not make specific restrictions.

[0155] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0156] Based on the same inventive concept, the embodiment of the present application also provides a braking torque detection device for transport equipment for implementing the above-mentioned method for detecting the braking torque of transport equipment. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the embodiments of the braking torque detection device for one or more transport equipment provided below can refer to the limitations of the above-mentioned method for detecting the braking torque of transport equipment, and will not be repeated here.

[0157] In an exemplary embodiment, Fig. 9 As shown, a braking torque detection device for transportation equipment is provided, including: a state monitoring module 901, a braking control and parameter detection module 902 and a braking torque determination module 903. Among them:

[0158] The state monitoring module 901 is used to monitor the operation state of the transport equipment in real time and generate a braking signal when the transport equipment meets the torque detection condition;

[0159] The braking control and parameter detection module 902 is used to respond to the braking signal, perform braking operation on the transport equipment, and synchronously detect the real-time operating parameters of the host of the transport equipment during braking;

[0160] The braking torque determination module 903 is used to obtain characteristic parameters of the transportation equipment and determine the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and real-time operating parameters.

[0161] In an exemplary embodiment, the status monitoring module 901 is also used to monitor the operating status of the transportation equipment in real time and generate a first judgment signal; in response to the first judgment signal, it is determined whether the transportation equipment is in an unmanned elevator stop state, and if so, a second judgment signal is generated, otherwise, it returns to real-time monitoring of the operating status of the transportation equipment; in response to the second judgment signal, it is determined whether the transportation equipment is in a detection switch triggering state, and if so, a braking signal is generated, otherwise, it returns to real-time monitoring of the operating status of the transportation equipment.

[0162] In an exemplary embodiment, the braking control and parameter detection module 902 is also used to control the transportation equipment to perform braking operations in response to a braking signal; detect a first operating speed of the main engine of the transportation equipment at the start time of the first braking stage, a second operating speed at the end time of the first braking stage, and a first duration of the first braking stage; determine a first deceleration of the main engine according to the first operating speed, the second operating speed, and the first duration; detect a third operating speed of the main engine of the transportation equipment at the end time of the second braking stage and a second duration of the second braking stage; determine a second deceleration of the main engine according to the second operating speed, the third operating speed, and the second duration.

[0163] In an exemplary embodiment, the braking torque determination module 903 is also used to obtain characteristic parameters of the transportation equipment; determine the first torque of the first braking stage according to the main machine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the first deceleration; determine the second torque of the second braking stage according to the main machine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the second deceleration; determine the actual braking torque according to the first torque and the second torque.

[0164] In an exemplary embodiment, the braking torque detection device of the above-mentioned transportation equipment further includes a first warning module, which is used to alarm or warn the braking torque of the brake of the transportation equipment according to the actual braking torque and the standard braking torque of the host machine.

[0165] In an exemplary embodiment, the first warning module is also used to determine the standard braking torque of the host and determine the torque coefficient between the actual braking torque and the standard braking torque; determine whether the torque coefficient is less than the first warning threshold and greater than or equal to the first alarm threshold, and if so, generate a first warning signal; otherwise, determine whether the torque coefficient is less than the first alarm threshold, and if so, generate a first alarm signal; respond to the first warning signal and perform a braking torque warning, or respond to the first alarm signal and perform a braking torque alarm.

[0166] In an exemplary embodiment, the braking torque detection device of the above-mentioned transportation equipment also includes a second warning module, which is used to determine the actual braking distance of the transportation equipment; and is used to alarm or warn the braking distance of the brake of the transportation equipment based on the actual braking distance and the standard braking distance when the transportation equipment is normally stopped.

[0167] In an exemplary embodiment, the second warning module is also used to determine the standard braking distance of the transportation equipment and determine the distance coefficient between the actual braking distance and the standard braking distance; determine whether the distance coefficient is greater than the second warning signal and less than or equal to the second alarm signal, and if so, generate a second warning signal; otherwise, determine whether the distance coefficient is greater than the second alarm threshold, and if so, generate a second alarm signal; respond to the second warning signal and perform a braking distance warning, or respond to the second alarm signal and perform a braking distance alarm.

[0168] Each module in the above-mentioned braking torque detection device of the transportation equipment can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0169] In an exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be shown in FIG10. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data such as real-time operating parameters, characteristic parameters, acceleration, rotation speed, time, braking torque, etc. of the transportation equipment. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the braking torque detection device method of the above-mentioned transportation equipment is implemented.

[0170] Those skilled in the art will understand that the structure shown in FIG. 10 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0171] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0172] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0173] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0174] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0175] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0176] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0177] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for detecting braking torque of transportation equipment, characterized in that: The method comprises: Monitor the operating status of the transport equipment in real time, and generate a braking signal when the transport equipment meets the torque detection condition; In response to the braking signal, performing a braking operation on the transport equipment, and synchronously detecting real-time operating parameters of a host machine of the transport equipment during braking; The characteristic parameters of the transportation equipment are acquired, and the actual braking torque of the transportation equipment is determined according to the characteristic parameters of the transportation equipment and the real-time operation parameters.

2. The method according to claim 1, characterized in that The real-time monitoring of the operating state of the transport equipment and generating a braking signal when the transport equipment meets the torque detection condition include: Monitor the operating status of the transportation equipment in real time and generate a first judgment signal; the operating status includes an unmanned elevator stop state and a detection switch trigger state In response to the first judgment signal, determine whether the transportation equipment is in an unmanned stop state, and if so, generate a second judgment signal, otherwise, return to the step of monitoring the operation state of the transportation equipment in real time; In response to the second judgment signal, it is determined whether the transport equipment is in a detection switch triggering state. If so, the braking signal is generated; otherwise, the process returns to the step of monitoring the operating state of the transport equipment in real time.

3. The method according to claim 1, characterized in that The braking period includes a first braking stage and a second braking stage connected to the first braking stage, and the real-time operating parameters include a first deceleration of the host in the first braking stage and a second deceleration in the second operating stage; The step of performing a braking operation on the transport equipment in response to the braking signal and synchronously detecting real-time operating parameters of a host of the transport equipment during braking comprises: In response to the braking signal, controlling the transport equipment to perform a braking operation; Detecting a first operating speed of a host of the transport equipment at a start time of the first braking phase, a second operating speed at an end time of the first braking phase, and a first duration of the first braking phase, and determining a first deceleration of the host according to the first operating speed, the second operating speed, and the first duration; Detect the third operating speed of the main engine of the transport equipment at the end of the second braking phase and the second duration of the second braking phase, and determine the second deceleration of the main engine according to the second operating speed, the third operating speed and the second duration.

4. The method according to claim 3, characterized in that The acquiring the characteristic parameters of the transport equipment and determining the actual braking torque of the transport equipment according to the characteristic parameters of the transport equipment and the real-time operating parameters includes: Acquire characteristic parameters of the transport equipment; the characteristic parameters include main engine inertia, drive wheel inertia, transmission efficiency, and drive wheel diameter; Determining a first torque in the first braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the first deceleration; Determining a second torque in the second braking stage according to the main engine inertia, the driving wheel inertia, the transmission efficiency, the driving wheel diameter and the second deceleration; The actual braking torque is determined based on the first acting torque and the second acting torque.

5. The method according to any one of claims 1 to 4, characterized in that: After acquiring the characteristic parameters of the transportation equipment and determining the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and the real-time operating parameters, the method further includes: According to the actual braking torque and the standard braking torque of the host machine, a warning or an alarm is given to the braking torque of the brake of the transportation equipment.

6. The method according to claim 5, characterized in that The step of providing an alarm or early warning on the braking torque of the brake of the transportation equipment according to the actual braking torque and the standard braking torque of the transportation equipment comprises: Determining a standard braking torque of the main engine, and determining a torque coefficient between the actual braking torque and the standard braking torque; Determine whether the torque coefficient is less than a first warning threshold and greater than or equal to a first alarm threshold, and if so, generate a first warning signal; otherwise, determine whether the torque coefficient is less than the first alarm threshold, and if so, generate a first alarm signal; Respond to the first warning signal and issue a braking torque warning, or respond to the first alarm signal and issue a braking torque alarm.

7. The method according to any one of claims 1 to 4, characterized in that: After acquiring the characteristic parameters of the transportation equipment and determining the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and the real-time operating parameters, the method further includes: determining an actual braking distance of the transport equipment; According to the actual braking distance and the standard braking distance when the transportation equipment is normally stopped, a warning or alarm is issued for the braking distance of the brake of the transportation equipment.

8. The method according to claim 7, characterized in that The step of providing an alarm or early warning on the braking distance of the brake of the transport equipment according to the actual braking distance and the standard braking distance when the transport equipment is normally stopped includes: Determining a standard braking distance of the transport equipment, and determining a distance coefficient between the actual braking distance and the standard braking distance; Determine whether the distance coefficient is greater than the second warning signal and less than or equal to the second alarm signal, if so, generate a second warning signal, otherwise, determine whether the distance coefficient is greater than a second alarm threshold, if so, generate a second alarm signal; Respond to the second warning signal and issue a braking distance warning, or respond to the second alarm signal and issue a braking distance alarm.

9. A braking torque detection device for transportation equipment, characterized in that: The device comprises: A status monitoring module, used to monitor the operating status of the transport equipment in real time and generate a braking signal when the transport equipment meets the torque detection condition; A braking control and parameter detection module, for responding to the braking signal, performing a braking operation on the transport equipment, and synchronously detecting real-time operating parameters of the host of the transport equipment during braking; The braking torque determination module is used to obtain the characteristic parameters of the transportation equipment and determine the actual braking torque of the transportation equipment according to the characteristic parameters of the transportation equipment and the real-time operation parameters.

10. The braking torque detection device according to claim 9, characterized in that: Also includes: A first warning module, configured to give an alarm or early warning of the braking torque of the brake of the transport equipment according to the actual braking torque and the standard braking torque of the host machine; and / or The second warning module is used to determine the actual braking distance of the transportation equipment; and to alarm or warn the braking distance of the brake of the transportation equipment according to the actual braking distance and the standard braking distance when the transportation equipment is normally stopped.

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