A runaway prevention early warning system and method

Abstract

This invention provides an anti-slip warning system, including an anti-slip management platform and multiple fasteners. Each fastener incorporates intelligent components capable of detecting its status and communicating with the anti-slip management platform. The fasteners integrate force sensors, communication, and positioning technologies, making them information-based products with detectable equipment status, trackable location, and traceable processes. Combined with the anti-slip management platform, the fasteners enable real-time monitoring of the status of all equipment within the station, including recording the entire process of warehousing, warehousing, arming, and disarming, achieving controllable, traceable, and verifiable information management of each stage of the operation. This invention also provides an early warning method for the above-mentioned anti-slip warning system, which, through periodic collection of fastener status data, can perform anomaly detection and generate alarms.

Description

Technical Field

[0001] This invention relates to the field of railway vehicle braking anti-runaway technology, specifically to an anti-runaway early warning system and method. Background Technology

[0002] The use of manual brakes on railway vehicles has drawbacks, especially in electrified sections of stations. The need to climb and tighten the handbrake to prevent vehicles from slipping while braking inside the station poses a personal safety hazard and is therefore not permitted.

[0003] Under electrified line conditions, existing railway vehicle braking and anti-runaway systems in stations mainly rely on iron shoes and mechanical fasteners. These existing fasteners are purely mechanical iron structures, which suffer from problems such as heavy weight, inconvenience in carrying, and a lack of information management measures. Workers need to conduct inspections every few hours, resulting in high workload. Work records are entirely handwritten on blackboards, which easily leads to equipment loss or omissions, and safety accidents such as vehicle or rail damage or derailment caused by pulling vehicles without removing anti-runaway devices.

[0004] In conclusion, there is an urgent need for a lightweight, intelligent, and safe anti-runaway early warning system and method to solve the problems existing in the current technology. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-slip warning system, which aims to solve the problems of existing anti-slip devices being heavy, lacking in information technology and safety. The specific technical solution is as follows:

[0006] An anti-slip warning system includes an anti-slip management platform and multiple fasteners;

[0007] The fastener includes:

[0008] The main frame has a fixed plate inside. A tension frame and a force measuring component are respectively provided on both sides of the fixed plate. The tension frame and the force measuring component are connected by a connector that moves through the fixed plate. When the tension frame moves away from the fixed plate, it drives the force measuring component to squeeze the fixed plate. The main frame has a slot at the end away from the tension frame.

[0009] Ratchet shaft, the ratchet shaft is rotatably mounted on the tension frame;

[0010] Kevlar strap, one end of which is connected to a hook, and the other end is connected to a ratchet shaft;

[0011] A locking lever has a locking part at one end and an unlocking part at the other end. A hinge point and a spring connection point are provided between the locking part and the unlocking part. The hinge point is used to hinge the locking lever to the tension frame or the main frame. The spring connection point is used to apply elastic force with the spring. Under the action of the elastic force, the locking part locks the ratchet on the ratchet shaft in a single rotation direction.

[0012] An intelligent component, located inside the main frame, is used to detect the status of the fastener and communicate with the anti-slip management platform.

[0013] In the preferred embodiment of the above technical solution, the intelligent component includes a microcontroller unit, a buzzer, a six-axis sensor, a vibration sensor, a positioning module, and a communication module. The force measuring component, buzzer, six-axis sensor, vibration sensor, positioning module, and communication module all communicate with the microcontroller unit. The six-axis sensor is used to detect the attitude angle and acceleration of the fastener. The vibration sensor is used to detect the vibration information received by the fastener. The positioning module cooperates with the positioning reference station of the base station to realize the positioning of the fastener. The communication module is used to realize the communication between the fastener and the anti-slip management platform. The buzzer is used to emit a prompt sound.

[0014] In the preferred embodiment of the above technical solutions, the communication module includes a 4G communication module and a LoRa communication module, and the fastener uses either the 4G communication module or the LoRa communication module for communication during operation.

[0015] In the preferred embodiment of the above technical solutions, the main frame also includes a battery for power supply, and a charging port is provided for charging the battery; the microcontroller unit collects the battery power and issues a power alarm when the battery power is lower than a set value.

[0016] In a preferred embodiment of the above technical solutions, the force measuring component includes a force sensor and a sensor base. The sensor base is connected to the tension frame via a connector. The force sensor is disposed on the side of the sensor base facing the fixed plate. The force sensor is electrically connected to the microcontroller unit.

[0017] In the preferred embodiment of the above technical solution, the relationship between the actual tension F1 of the Kevlar belt and the axial force F0 of the force sensor is: F1=F0 / cosβ; where β is the angle between the actual tension direction of the Kevlar belt and the axial force direction of the force sensor. When the fastener is in a horizontal hanging position, β is 0°, and when the fastener is in an oblique hanging position, β is 45°.

[0018] In the preferred embodiment of the above technical solutions, the card slot portion includes multiple card slots with different card slot thicknesses.

[0019] In the preferred embodiment of the above technical solutions, when the force sensor reading exceeds a set threshold during fastening, a buzzer will sound an alert.

[0020] In the preferred embodiment of the above technical solution, the main frame is provided with a sealing plate one and a sealing plate two on both sides, the sealing plate two is provided with an unlocking groove, the unlocking part of the locking lever is provided with an unlocking post, and the unlocking post is located in the unlocking groove.

[0021] The present invention also provides an early warning method for the above-mentioned anti-runaway early warning system, specifically:

[0022] When armed, the microcontroller unit periodically collects the measured values ​​of the force sensor, battery level, acceleration, attitude angle and positioning data and reports them to the anti-slip management platform;

[0023] When the force sensor reading is lower than the set threshold during the armed state, an abnormal tension alarm is generated on the anti-slip management platform.

[0024] When armed, if the vibration sensor does not detect vibration information for a period of time, the fastener enters a dormant state.

[0025] When the fastener is awakened by vibration while in the armed state, the acceleration and attitude angle of the fastener are collected over a period of time. If the attitude angle remains unchanged while the acceleration continues to increase in the same direction, a brake release alarm is generated.

[0026] The application of the technical solution of the present invention has the following beneficial effects:

[0027] The anti-slip warning system of this invention integrates force sensors, communication, positioning and other means into the fastener, making it an information product with detectable equipment status, trackable location and traceable process. The new structural design enhances portability to reduce the labor intensity of operators, while the fastener can report equipment status in real time, reduce the frequency of inspections and effectively improve work efficiency and anti-slip safety. The fastener, combined with the anti-slip management platform, realizes real-time monitoring of the status of all equipment in the station, including the entire process of warehousing, warehousing, arming and disarming, achieving information management that is controllable, traceable and verifiable in each link of the operation process.

[0028] By pulling the tension frame, pressure is applied to the force sensor, allowing direct or indirect measurement of the actual tension of the Kevlar strap. During fastener installation, the system directly alerts the operator that the tension has reached the specified value, making installation convenient and standardized. The fastener's main frame is made of magnesium-aluminum alloy, and its compact structure reduces weight by more than 50% compared to traditional fasteners, thus reducing operator workload and improving work efficiency.

[0029] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 This is a schematic diagram of the fastener structure in the anti-runaway early warning system;

[0032] Figure 2 This is a schematic diagram of the structure of the hidden sealing plate 2 of the fastener in the anti-slip warning system;

[0033] Figure 3 This is a structural diagram showing the relationship between the main frame, tension frame, and force sensor in the fastener;

[0034] Figure 4 This is a schematic diagram showing the angle between the axial force of the force sensor on the fastener and the actual tension of the Kevlar strap.

[0035] Figure 5 This is a framework diagram of the intelligent components in the fastener;

[0036] Figure 6 This is a diagram illustrating the working principle of the fastener;

[0037] Figure 7 This is a working logic diagram of the intelligent component;

[0038] Among them, 1. hook, 2. Kevlar strap, 3. tension frame, 4. sealing plate one, 5. main frame, 6. sealing plate two, 7. intelligent component, 8. unlocking slot, 9. ratchet shaft, 10. slot section, 10.1 slot one, 10.2 slot two, 11. unlocking post, 12. locking lever, 13. spring, 14. force sensor, 15. sensor seat, 16. fixing plate. Detailed Implementation

[0039] To facilitate understanding of the present invention, a more comprehensive description is provided below, along with preferred embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] Example:

[0042] This embodiment provides an anti-slip warning system, including an anti-slip management platform and multiple fasteners.

[0043] For details, see Figures 1-7 The fastener includes:

[0044] The main frame 5 has a fixed plate 16 inside. The fixed plate 16 has a tension frame 3 and a force measuring component on both sides. The tension frame 3 and the force measuring component are connected by a connector that moves through the fixed plate 16. When the tension frame 3 moves away from the fixed plate, it drives the force measuring component to squeeze the fixed plate 16. The main frame 5 has a slot 10 at the end away from the tension frame 3. The slot is used to fasten the fastener to be locked on the manual brake machine fixing frame.

[0045] Ratchet shaft 9 is rotatably mounted on tension frame 3. The ratchet shaft includes a shaft body and a ratchet mounted on the shaft body. The shaft body is provided with a winding section for winding up Kevlar tape.

[0046] Kevlar tape 2, one end of which is connected to hook 1 and the other end of which is connected to ratchet shaft 9; the Kevlar tape is specifically connected to the take-up section;

[0047] The locking lever 12 has a locking part at one end and an unlocking part at the other end. A hinge point and a spring connection point are provided between the locking part and the unlocking part. The hinge point is used to hinge the locking lever 12 to the tension frame 3 or the main frame 5. The spring connection point is used to apply elastic force with the spring. Under the action of the elastic force, the locking part locks the ratchet on the ratchet shaft in a single rotation direction.

[0048] In this embodiment, the locking lever is hinged to the tension frame 3, and a spring is provided on the side of the fixing plate. One end of the spring is connected to a pin on the fixing plate, and the other end abuts against the locking lever. After the spring is installed, it is in a compressed state, which locks the ratchet. In this arrangement, the locking lever will move with the tension frame. However, since the tension frame will only undergo slight displacement under the traction of the Kevlar belt, this arrangement of the locking lever will not affect the stable transmission of spring force between the spring and the locking lever. If it is necessary to meet the application situation where the tension frame has a large movement distance, the spring and the locking lever can be set to a rolling contact, that is, a roller is set at the end of the spring. Through the rolling contact between the roller and the locking lever, the locking lever can be allowed to have a large movement displacement with the tension frame.

[0049] The main frame is made of magnesium-aluminum alloy, featuring a smooth surface, light weight, portability, ease of operation, corrosion resistance, high and low temperature resistance, and waterproof and dustproof properties. The Kevlar strap features low density, high strength, good toughness, high temperature resistance, and easy storage. Preferably, the locking part is a pawl that engages with the ratchet, enabling locking of the ratchet in a single rotational direction. Preferably, the connecting component can be a bolt or a connecting pin.

[0050] Specifically, rotating the ratchet shaft enables the winding and unwinding of the Kevlar belt. When the locking lever locks the ratchet shaft, the ratchet shaft can only rotate in one direction, meaning it can only wind up the Kevlar belt and cannot release it. When the locking lever does not lock the ratchet shaft, the ratchet shaft can rotate in both directions, enabling both winding and unwinding of the Kevlar belt.

[0051] Specifically, the force measuring component includes a force sensor 14 and a sensor base 15. The sensor base 15 is connected to the tension frame 3 through a connector. The force sensor 14 is disposed on the side of the sensor base 15 facing the fixed plate 16. That is, when the tension frame moves away from the fixed plate, it drives the force sensor to press the fixed plate.

[0052] See Figure 1 and Figure 2 The main frame 5 is provided with a sealing plate 4 and a sealing plate 6 on both sides respectively. The sealing plate 6 is provided with an unlocking groove 8. The unlocking part of the locking lever 12 is provided with an unlocking post 11. The unlocking post 11 is located in the unlocking groove 8. The locking lever and ratchet are unlocked by prying the unlocking post.

[0053] In practical applications, due to the special structure of the brake shoes, the suspension posture of the fastener mechanism is affected by the direction of the brake shoe pulley and chain, resulting in two suspension postures: horizontal and angled. (See also...) Figure 3 The slot portion 10 includes multiple slots with different slot thicknesses. In this embodiment, there is a first slot 10.1 and a second slot 10.2, wherein the slot thickness of the first slot is b and the slot thickness of the second slot 10.2 is a; the two slots with different thicknesses correspond to the installation of fasteners in the flat hanging posture and the oblique hanging posture, respectively.

[0054] The force sensor is preferably a pressure sensor. The force sensor measures the axial force acting on it. Therefore, due to the different hanging postures (flat and angled), the force measured by the force sensor may not be equal to the tension of the Kevlar strap. Specifically, the relationship between the actual tension F1 of the Kevlar strap and the axial force of the force sensor (i.e., the force measured by the force sensor) F0 is: F1 = F0 / cosβ; where β is the angle between the actual tension direction of the Kevlar strap and the axial force direction of the force sensor. When the fastener is in a flat hanging posture, β is 0°, and the tension direction of the Kevlar strap is in the same direction as the axial force of the force sensor; when the fastener is in an angled hanging posture, β is 45°, and the tension direction of the Kevlar strap forms an angle β with the axial force of the force sensor. Figure 4 As shown.

[0055] The main frame is also equipped with intelligent components, using an embedded MCU as the main controller, which mainly realizes the periodic collection and reporting of current equipment information and status, and realizes interaction with operators through a buzzer.

[0056] See Figure 5 The intelligent components include a microcontroller unit (MCU), a buzzer, a six-axis sensor, a vibration sensor, a positioning module, and a communication module. The force sensor 14, buzzer, six-axis sensor, vibration sensor, positioning module, and communication module all communicate with the MCU. The six-axis sensor is used to detect the attitude angle and acceleration of the fastener. The vibration sensor is used to detect the vibration information received by the fastener. The positioning module cooperates with the positioning reference station of the base station to realize the positioning of the fastener. The communication module is used to realize the communication between the fastener and the anti-slip management platform. The buzzer is used to emit a prompt sound.

[0057] Preferably, the positioning module is a Beidou positioning module. The Beidou positioning module works with the positioning reference station of the base station to locate the fastener. For specific positioning algorithms, please refer to the prior art.

[0058] Furthermore, the main frame also includes a battery for power supply, and a charging port is provided for charging the battery; the micro-control unit collects the battery power, and when the battery power is lower than the set value, a power alarm is issued on the anti-slip management platform, at which time the fastener needs to be replaced in time; when the fastener is put into storage for charging, the low power alarm is deactivated.

[0059] Furthermore, the communication module includes a 4G communication module and a LoRa communication module. The 4G communication module has a built-in 4G antenna, and the LoRa communication module has a built-in LoRa antenna. When the fastener is working, it uses either the 4G communication module or the LoRa communication module for communication. In this embodiment, the fastener uses the 4G communication mode by default. When some railway bureau intranets do not support 4G communication, the LoRa communication mode can be flexibly switched.

[0060] The fastener in this embodiment uses the MQTT communication protocol, which is suitable for lightweight publish / subscribe messaging and provides reliable network services for IoT devices in low-bandwidth and unstable network environments.

[0061] Those skilled in the art will understand that the actual tension of the Kevlar strap is the braking force generated. To facilitate the direct acquisition of the actual tension of the Kevlar strap, a method for calculating the actual tension of the Kevlar strap under both inclined and horizontal mounting postures can be configured within the microcontroller unit to indicate the installation tension and arming tension alarms under both inclined and horizontal mounting postures.

[0062] When installing the fastener, the ratchet shaft is subjected to force, causing the tension frame to move slightly forward. The tension frame then moves the sensor seat, causing the force sensor to press against the fixing plate. The force sensor can then detect the magnitude of the tension and transmit it to the intelligent component (i.e., MCU) via a voltage signal. When the measured value of the force sensor exceeds the set threshold, the buzzer will sound an alert.

[0063] The anti-slip warning system also includes a ratchet wrench (not shown) for operating the intelligent fastener to complete the arming and disarming actions. Specifically, one end of the ratchet wrench is provided with an internal hexagonal socket, and at least one end of the ratchet shaft 9 is provided with a hexagonal head that matches the internal hexagonal socket. That is, the ratchet shaft can be rotated by the ratchet wrench to tighten the Kevlar strap. The other end of the ratchet wrench is provided with a tip for prying the unlocking pin 11. Inserting the tip of the ratchet wrench into the unlocking groove can pry the unlocking pin, thereby unlocking the locking lever and the ratchet and releasing the Kevlar strap.

[0064] In use, the slot is hung on the manual brake mounting bracket, and the hook is hung on the manual brake chain. The first end of the Kevlar strap is connected to the hook, and the second end is fixed to the ratchet shaft. When the ratchet shaft is turned with a ratchet wrench, the Kevlar strap is gradually retracted, which in turn tightens the manual brake chain, generating braking force to prevent the vehicle from rolling. The locking part of the locking lever can lock the ratchet on the ratchet shaft to maintain a constant tension.

[0065] This embodiment also provides an early warning method for the aforementioned anti-runaway early warning system, specifically:

[0066] When armed, the microcontroller periodically collects the measured values ​​of the force sensor, battery level, acceleration, attitude angle and positioning data and reports them to the anti-runaway management platform. Station personnel can monitor the status information of the intelligent fastener in real time from indoors and realize intelligent reporting of equipment status information.

[0067] When the defense is armed, if the measured value of the force sensor is detected to be lower than the set threshold, an abnormal tension alarm will be generated on the anti-slip management platform. When the measured value returns to normal, the abnormal tension alarm will be deactivated.

[0068] When armed, if the vibration sensor does not detect vibration information within a certain period of time (i.e., the set specified time), the fastener enters a sleep state. In the sleep state, the MCU will shut down the relevant modules to reduce power consumption. The power consumption in the sleep state is <1mA, which maximizes the working time of the device. The fastener in this embodiment can support continuous operation for 7 days.

[0069] The fastener in this embodiment uses a clock to implement a timed wake-up mechanism. After a certain period of continuous sleep (i.e., a specified time), it will automatically wake up, report a device status information, and then continue to enter the sleep state. Alternatively, when the vibration switch detects vibration information (i.e., vibration intensity) that is greater than a set threshold, it will actively wake up the MCU to perform status detection and reporting.

[0070] The fastener in this embodiment can trigger a brake-start alarm. Brake-starting is usually caused by forgetting to remove the fastener when starting the vehicle. At this time, the fastener is still fixed to the vehicle body and is in a stationary state. When the vehicle starts from a standstill, it will inevitably be subjected to the traction force from the engine and generate inertial acceleration. Therefore, this embodiment is designed to collect the acceleration and attitude angle over a period of time when the fastener is awakened by vibration in the armed state. If the attitude angle remains unchanged and the acceleration continues to increase in the same direction, a brake-starting alarm is generated. Specifically, the alarm is issued on the anti-rollover management platform.

[0071] For the workflow of the fastener in this embodiment to achieve intelligent anti-slip, please refer to [link / reference]. Figure 7 The MCU sequentially checks whether it has received sampling flags, vibration status flags, reporting flags, remote command flags, console command flags, and sleep flags, and executes each command. When a sampling flag is received, the MCU collects the power and tension data of the fastener. During fastener installation, a buzzer will sound an alert when the tension reaches the target value. When a vibration status flag is received, the fastener collects acceleration and attitude angle data. When a reporting flag is received, the communication module resumes network connection to report the device status information to the anti-slip management platform. When a remote command flag is received, the fastener processes remote commands. When a console command flag is received, the fastener processes console commands. When a sleep flag is received, the MCU clears all received flag commands, and the fastener enters sleep mode until the sleep timer ends or vibration information is detected, at which point it is awakened to enter the next detection cycle.

[0072] The fastener in this embodiment is developed strictly in accordance with railway standard TB / T3095—2004 and has passed CRCC certification. It can effectively prevent slippage of various types of freight cars on railways. When the car is in a flat-mounted position, it generates an axial tension force of 10kN on the brake and can maintain its shape for a relatively long time. When the axial tension force on the brake reaches 10.7kN, the ratchet teeth are cut off to protect the brake shoes from damage.

[0073] The fastener in this embodiment is CMA / CNAS certified. It uses a 4-pin magnetic connector as the charging and debugging interface, which has complete internal and external isolation characteristics. The internal circuit, battery, wire solder joints and other electrical parts are all fixed in a closed plastic shell. It is completely cast with three-proof silicone gel to fill all gap areas. Once solidified, it will completely cover the electrical parts, achieving IP68 waterproof and dustproof capability.

[0074] The fastener in this embodiment has passed high and low temperature tests and its performance meets the requirement of normal operation at temperatures ranging from -20℃ to 60℃, making it suitable for use in most regions of China.

[0075] The fasteners in this embodiment undergo a series of tests, including radiated interference, electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, power frequency magnetic field immunity, alternating damp heat, vibration test, and impact test, to ensure that the equipment can work normally in complex station environments.

[0076] The technical solution applied in this embodiment is as follows:

[0077] See Figure 6 The use of the fastener in this embodiment includes two main parts: arming and disarming operations.

[0078] Fortification work:

[0079] (1) Upon receiving the setting instruction, the operator takes the fastener out of the warehouse and proceeds to the vehicle location on site.

[0080] (2) Hang the fastener's slot into the vehicle's manual brake chain fixing frame, and select the appropriate slot according to the installation posture of hanging at an angle or horizontally.

[0081] (3) Use your hand to pry open the unlocking pin so that the ratchet is fully unlocked. Pull the hook outwards and pull the Kevlar belt all the way out.

[0082] (4) Pull the chain of the manual brake towards yourself until the pulley slides to the bottom and can no longer be pulled.

[0083] (5) Hook the hook as far as possible on the chain to ensure that the Kevlar strap is basically straight, leaving a little slack.

[0084] (6) Tighten the ratchet shaft with a ratchet wrench so that the Kevlar belt is gradually pulled back onto the ratchet shaft until the buzzer starts to sound. After removing the wrench, the buzzer will continue to sound for 3 seconds without stopping, which means that the anti-slip is tightened in place.

[0085] (7) The anti-slip management platform issues an arming command, the fastener receives it, and the working status changes to arming.

[0086] (8) The vehicle is protected for a period of time, which usually ranges from a few hours to a few days. The fastener will monitor and report the data in real time.

[0087] Disarmament operations:

[0088] (1) The operators receive the disarmament order and proceed to the vehicle location on site.

[0089] (2) Apply a slight tightening force to the ratchet shaft with a ratchet wrench and hold it. With your other hand, push open the unlocking pin to fully unlock the ratchet. Then turn the ratchet wrench half a turn to loosen the Kevlar strap. Remove the ratchet wrench. The hook and Kevlar strap will continue to be pulled out under the action of the manual brake spring force, finally completing the release of force.

[0090] (3) Remove the hook from the chain and remove the fastener from the bracket.

[0091] (4) Use a ratchet wrench to turn the ratchet and retract the Kevlar belt as completely as possible back to the ratchet shaft.

[0092] (5) Put the fastener back into the storage compartment and charge it.

[0093] The effect of applying the technical solution of this invention is:

[0094] The fastener in this embodiment strictly adheres to the Ministry of Railways' overall information technology development plan and technical specifications. It integrates force sensors, communication, and positioning technologies, making it an information-based product with detectable equipment status, trackable location, and traceable process. Its new structural design enhances portability, reducing the labor intensity of operators. Simultaneously, it can report equipment status in real time, reducing inspection frequency and effectively improving operational efficiency and runaway safety. Combined with the runaway management platform, the fastener enables real-time monitoring of the status of all equipment within the station, including recording the entire process of warehousing, retrieval, arming, and disarming, achieving controllable, traceable, and verifiable information management of each stage of the operational process.

[0095] The main frame of the fastener is made of magnesium-aluminum alloy, which reduces the weight by more than 50% compared with traditional fasteners, thereby reducing the labor intensity of operators and improving work efficiency.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A runaway early warning system, characterized in that, The anti-slip management platform and the plurality of fasteners are included. The fastener includes: A main frame (5) is internally provided with a fixed plate (16), and the two sides of the fixed plate (16) are respectively provided with a tension frame (3) and a force measuring assembly. The tension frame (3) and the force measuring assembly are connected through a connecting piece movably penetrating the fixed plate (16). When the tension frame (3) moves away from the fixed plate, the force measuring assembly is driven to press the fixed plate (16). The main frame (5) is provided with a clamping groove portion (10) at an end away from the tension frame (3). A ratchet shaft (9) is rotatably arranged on the tension frame (3). A Kevlar belt (2) has one end connected to a hook (1) and the other end connected to the ratchet shaft (9). A locking lever (12) has a locking portion at one end and an unlocking portion at the other end. A hinge point and a spring connecting point are arranged between the locking portion and the unlocking portion. The hinge point is used for hinging the locking lever (12) with the tension frame (3) or the main frame (5). The spring connecting point is used for the spring to exert a spring force, so that the locking portion can lock the ratchet of the ratchet shaft in a single rotation direction under the action of the spring force. An intelligent assembly is arranged inside the main frame and is used for detecting the state of the fastener and communicating with the anti-slip management platform. The force measuring assembly includes a force sensor (14) and a sensor seat (15). The sensor seat (15) is connected with the tension frame (3) through the connecting piece. The force sensor (14) is arranged on one side of the sensor seat (15) facing the fixed plate (16). The force sensor (14) is electrically connected with a micro control unit of the intelligent assembly.

2. The warning system of claim 1, wherein The intelligent assembly includes a micro control unit, a buzzer, a six-axis sensor, a vibration sensor, a positioning module and a communication module. The force measuring assembly, the buzzer, the six-axis sensor, the vibration sensor, the positioning module and the communication module are in communication with the micro control unit. The six-axis sensor is used for detecting the attitude angle and acceleration of the fastener. The vibration sensor is used for detecting the vibration information received by the fastener. The positioning module cooperates with a positioning reference station of a base station to realize positioning of the fastener. The communication module is used for realizing communication between the fastener and the anti-slip management platform. The buzzer is used for emitting a prompt sound.

3. The warning system of claim 2, wherein, The communication module includes a 4G communication module and a LORA communication module. The fastener works by using the 4G communication module or the LORA communication module to communicate.

4. The warning system of claim 2, wherein, The main frame further includes a battery for power supply. A charging port is arranged to charge the battery. The micro control unit collects the power of the battery, and an electric quantity alarm is given when the power of the battery is lower than a set value.

5. The warning system of claim 1, wherein, The relationship between the actual tension F1 of the Kevlar belt and the axial force F0 of the force sensor is F1=F0 / cosβ. β is the included angle between the actual tension direction of the Kevlar belt and the axial force direction of the force sensor. When the fastener is in a flat hanging posture, β is 0°. When the fastener is in an inclined hanging posture, β is 45°.

6. The warning system of claim 5, wherein, The clamping groove portion (10) includes a plurality of clamping grooves with different thicknesses.

7. The warning system of claim 1, wherein, When the fastener is installed, the buzzer gives a prompt when the measured value of the force sensor is greater than a set threshold value.

8. The warning system of claim 1, wherein, Two sides of the main frame (5) are respectively provided with the sealing plate one (4) and the sealing plate two (6), the sealing plate two (6) is provided with the unlocking slot (8), the unlocking part of the locking lever (12) is provided with the unlocking column (11), the unlocking column (11) is located in the unlocking slot (8).

9. The early warning method of the early warning system against sliding according to any one of claims 1-8, characterized in that: When the anti-sliding state is set, the micro-control unit periodically collects the measurement value of the force sensor, the battery capacity, the acceleration, the attitude angle and the positioning data and reports them to the anti-sliding management platform; When the anti-sliding state is set, if the measurement value of the force sensor is detected to be lower than the set threshold, the anti-sliding management platform generates a tension abnormality alarm; When the anti-sliding state is set, if the vibration sensor does not detect vibration information within a period of time, the fastener enters a dormant state; When the fastener is awakened by vibration in the anti-sliding state, the acceleration and the attitude angle of the fastener within a period of time are collected, if the attitude angle remains unchanged and the acceleration continuously increases in the same direction, it is determined that a brake-engaged driving alarm is generated.

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