Chain anti-loosening system, anti-loosening monitoring method, electronic equipment and storage medium

Abstract

The invention discloses a chain anti-loosening system, an anti-loosening monitoring method, electronic equipment and a storage medium. The chain anti-loosening system comprises a plurality of gasket sensors, a receiving and transmitting device and a ground centralized control platform. The plurality of gasket sensors are respectively mounted on different chain fasteners, the plurality of gasket sensors are respectively used for monitoring pre-tightening force of corresponding bolts, and the gasket sensors are passive wireless sensors; the transceiving device is in wireless communication connection with the gasket sensor, and is used for transmitting electromagnetic waves to activate the gasket sensor to work and receiving a frequency signal which is returned by the gasket sensor and carries pre-tightening force information; the ground centralized control platform is in communication connection with the receiving and transmitting device, and the ground centralized control platform is used for receiving the frequency signals uploaded by the receiving and transmitting device, judging whether the pre-tightening force is lower than an early warning threshold value or not by analyzing changes of the frequency signals and generating early warning information. According to the invention, by detecting the change of the pre-tightening force of the chain fastener bolt, early warning of bolt loosening is realized.

Description

Technical Field

[0001] This invention relates to the field of chain anti-loosening monitoring technology, and in particular to a chain anti-loosening system, anti-loosening monitoring method, electronic device and storage medium. Background Technology

[0002] In the industrial sector, chain drive systems are widely used in various types of machinery and equipment. The reliable operation of the chain is crucial, and loose chain fastener bolts are one of the main causes of serious malfunctions such as chain derailment and breakage. Therefore, real-time monitoring of the preload of chain fasteners to achieve early warning of loosening is of great safety and economic significance.

[0003] Currently, chain condition monitoring largely relies on periodic manual inspections or simple mechanical anti-derailment structures, which cannot achieve real-time, online, and accurate monitoring. Although existing sensor technologies (such as strain gauges and wired sensors) can theoretically be used to monitor preload, the application of traditional active or wired sensors faces significant challenges in environments like chains, which are typically in high-speed motion, subject to severe vibration, and where space is limited and wiring is difficult: laying wired power supply and signal transmission lines is extremely difficult and prone to damage; battery-powered sensors suffer from limited battery life and require frequent replacement and maintenance.

[0004] In summary, existing chain anti-loosening systems mainly rely on delayed, subjective, and qualitative inspection methods, which cannot continuously, quantitatively, and early monitor the core parameter of bolt tightness, such as preload. This leads to passive maintenance strategies and potential safety hazards in the chain. Summary of the Invention

[0005] This invention provides a chain anti-loosening system, an anti-loosening monitoring method, an electronic device, and a storage medium. By detecting changes in the preload of chain fastener bolts, it enables early warning of bolt loosening, thereby improving the safety performance of chain equipment.

[0006] According to one aspect of the present invention, a chain anti-loosening system is provided, comprising: multiple pad sensors, a transceiver device, and a ground centralized control platform;

[0007] The multiple gasket sensors are respectively installed on different chain fasteners, and the multiple gasket sensors are used to monitor the preload of the corresponding bolts. The gasket sensors are passive wireless sensors.

[0008] The transceiver is wirelessly connected to the gasket sensor. The transceiver is used to transmit electromagnetic waves to activate the gasket sensor and to receive frequency signals carrying preload information transmitted back by the gasket sensor.

[0009] The ground-based centralized control platform is communicatively connected to the transceiver device. The ground-based centralized control platform is used to receive the frequency signal uploaded by the transceiver device, analyze the changes in the frequency signal to determine whether the preload is lower than the warning threshold, and generate warning information.

[0010] Optionally, the transceiver includes: a high-gain directional antenna;

[0011] The high-gain directional antenna is used to directionally transmit electromagnetic waves to the pad sensor and directionally receive the frequency signals returned by the pad sensor.

[0012] Optionally, the gasket sensor is conformally mounted to the chain fastener, and the gasket sensor has an elongated shape.

[0013] The gasket sensor also has at least two mounting holes for mounting bolts, which are symmetrically distributed on the longitudinal axis of the gasket sensor.

[0014] Optionally, the transceiver device and the ground centralized control platform transmit data via a CAN bus interface or wireless communication.

[0015] The ground-based centralized control platform compares the received frequency signal with a preset warning threshold to generate a chain loosening warning.

[0016] Optionally, the gasket sensor includes: a pressure-bearing structure, a sensitive unit, a sensing circuit, and an antenna connected in sequence;

[0017] The pressure-bearing structure, the sensitive unit, the sensing circuit, and the antenna are all integrated inside the sensor, and the sensor operates in a passive wireless manner.

[0018] The sensing circuit is a passive wireless sensing circuit based on a piezoelectric resonator.

[0019] Alternatively, the sensing circuit may be a passive wireless sensing circuit based on two reverse-connected varactor diodes.

[0020] According to another aspect of the present invention, a method for monitoring chain loosening in an aluminum alloy lifting platform is provided, employing a chain loosening prevention system as described in any embodiment of the present invention. The chain loosening prevention monitoring method includes:

[0021] The pad sensor is activated by transmitting electromagnetic waves to it via a transceiver device.

[0022] The gasket sensor detects changes in bolt preload and transmits back a frequency signal carrying preload information.

[0023] The frequency signal is received by the transceiver and transmitted to the ground-based centralized control platform.

[0024] The ground-based centralized control platform determines whether the received frequency signals exceed the warning threshold and generates warning information.

[0025] Optionally, the step of determining whether the received frequency signal exceeds the warning threshold and generating warning information through the ground centralized control platform includes: a calibration stage, a monitoring stage, and a judgment stage;

[0026] The calibration stage includes: when the elevator is unloaded, the ground centralized control platform controls the elevator to perform lifting and lowering actions with different speeds, and at multiple preset height positions, the shim sensor collects the preload force data of the chain fastener bolts to establish a calibration database containing the correspondence between height, motion state and preload force.

[0027] The monitoring phase includes: during the actual operation of the elevator, the ground centralized control platform collects bolt preload data in real time under the current state, and queries the calibration database according to the current height and movement state to obtain the corresponding calibration preload value;

[0028] The judgment stage includes: the ground centralized control platform compares the real-time collected preload data with the calibrated preload value obtained by query. If the real-time preload value is less than the calibrated value, it determines that the bolt has a loosening fault and immediately triggers an early warning and controls the elevator to stop.

[0029] Optionally, the calibration stage specifically includes: dynamic calibration and static calibration;

[0030] The dynamic calibration includes: the ground centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear.

[0031] The static calibration includes: after the ground centralized control platform controls the elevator to rise or fall to each height level and stops, and after the equipment stabilizes, the bolt preload data under static conditions is collected.

[0032] Optionally, the ground centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear, including: dynamic calibration of no-load lifting and dynamic calibration of no-load lowering.

[0033] The no-load lifting dynamic calibration includes: performing no-load lifting at at least three different speeds, and collecting preload data at each height level during the lifting process;

[0034] The no-load descent dynamic calibration includes: performing no-load descent at at least three different speeds, and collecting preload data at each height level during the descent.

[0035] Optionally, the ground centralized control platform controls the elevator to rise or fall to each of the height levels and then stops. After the equipment stabilizes, it collects static bolt preload data, including: static calibration of no-load lifting and static calibration of no-load lowering.

[0036] The no-load lifting static calibration includes: after completing the no-load lifting dynamic calibration, collecting static preload data after stopping and stabilizing at each height position;

[0037] The static calibration of unloaded descent includes: after completing the dynamic calibration of unloaded descent, collecting static preload data after stopping and stabilizing at each height level.

[0038] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0039] At least one processor; and

[0040] A memory communicatively connected to the at least one processor; wherein,

[0041] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the chain loosening monitoring method according to any embodiment of the present invention.

[0042] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the chain anti-loosening monitoring method according to any embodiment of the present invention.

[0043] The technical solution of this invention provides a chain anti-loosening system based on passive wireless sensors. The pad sensors are passive and wireless, offering flexible deployment. They require no external power supply or signal lines, completely solving the pain points of difficult wiring and battery maintenance in chain environments. This allows the sensors to be easily installed in locations where traditional sensors are difficult to deploy. By employing transceivers and a centralized ground control platform, unified management of multiple monitoring points can be achieved. Although the cost of a single sensor may be high, it saves a significant amount of cable laying and long-term maintenance costs, resulting in high system integration and cost-effectiveness. The system can continuously or on-demand monitor changes in preload, issuing an early warning before a loosening trend occurs, transforming periodic maintenance into predictive maintenance. Real-time online monitoring and early warning greatly improve safety. This solves the problem that existing chain anti-loosening systems cannot monitor the core parameter of bolt tightness—preload—leading to passive maintenance strategies and potential safety hazards in the chain. The system provides real-time, online, and accurate monitoring of the preload status of chain fasteners and issues early warnings of loosening, effectively improving the safety and reliability of equipment operation.

[0044] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of a chain anti-loosening system provided according to an embodiment of the present invention.

[0047] Figure 2 This is a schematic diagram illustrating the principle of a chain anti-loosening technology provided by an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the appearance of a pad sensor according to an embodiment of the present invention;

[0049] Figure 4 This is a flowchart of a chain anti-loosening monitoring method for an aluminum alloy lifting platform according to an embodiment of the present invention;

[0050] Figure 5 This is a schematic diagram of the structure of an electronic device that implements the method of the embodiments of the present invention. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0053] Figure 1 This is a schematic diagram of a chain anti-loosening system provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the chain anti-loosening system includes: multiple pad sensors 10, a transceiver device 20, and a ground centralized control platform 30;

[0054] Multiple gasket sensors 10 are installed on different chain fasteners. The multiple gasket sensors 10 are used to monitor the preload of the corresponding bolts. The gasket sensors 10 are passive wireless sensors.

[0055] The transceiver 20 is wirelessly connected to the gasket sensor 10. The transceiver 20 is used to transmit electromagnetic waves to activate the gasket sensor 10 and to receive the frequency signal carrying the preload information transmitted back by the gasket sensor 10.

[0056] The ground centralized control platform 30 is communicatively connected to the transceiver 20. The ground centralized control platform 30 is used to receive frequency signals uploaded by the transceiver 20, analyze the changes in the frequency signals to determine whether the preload is lower than the warning threshold, and generate warning information.

[0057] Specifically, the gasket sensor 10, the transceiver 20, and the ground centralized control platform 30 constitute a complete chain anti-loosening monitoring and early warning system. The gasket sensor 10 is installed on the chain fastener, and the transceiver 20 is located on the side of the ground centralized control platform 30, which can be flexibly configured according to application needs.

[0058] The pad sensor 10 is a passive wireless sensor. Passive wireless sensing technology has the following characteristics: One of its most significant features is that it requires no external power supply. Traditional sensors typically rely on batteries or wired power to operate, while passive wireless sensing technology eliminates this dependence, obtaining energy from the surrounding environment to achieve self-powering. This characteristic makes sensor deployment more flexible, eliminating the need for frequent battery replacements or laying complex power lines, significantly reducing maintenance costs and installation difficulty.

[0059] Wireless communication: Data is transmitted wirelessly, freeing it from the constraints of cables. It can transmit sensed data to the receiving end via wireless communication protocols such as radio frequency (RF), infrared, Bluetooth, and ZigBee. This wireless transmission feature not only simplifies system architecture and improves the flexibility of sensor deployment, but also facilitates integration with other wireless devices or networks, enabling remote monitoring and management of data. Furthermore, wireless communication allows sensors to operate normally in mobile or dynamic environments, meeting diverse application needs.

[0060] Miniaturization and Lightweight Design: To facilitate energy harvesting from the environment and wireless communication, passive wireless sensors are often designed to be small and lightweight. This miniaturization and lightweight nature makes them easier to integrate into various devices or objects, minimizing their impact on the monitored object.

[0061] Low power consumption: Because passive wireless sensing technology relies on ambient energy for power, it must possess low power consumption characteristics. Low power consumption allows the sensor to operate stably for extended periods under limited ambient energy, improving system reliability and lifespan.

[0062] High reliability: The absence of complex power supply lines and the need for frequent battery replacements reduces the risk of failures due to power supply issues.

[0063] High cost-effectiveness: From a long-term use and maintenance perspective, passive wireless sensing technology is highly cost-effective. Although the initial purchase cost of a single sensor may be relatively high due to its high technological content, the overall cost decreases significantly over time due to the elimination of extensive cabling, the lack of frequent battery replacements, and the low maintenance workload.

[0064] High environmental adaptability: Passive wireless sensors can operate in a variety of harsh environments, demonstrating excellent environmental adaptability. Whether under extreme physical conditions such as high temperature, low temperature, high humidity, and high pressure, or in complex chemical and electromagnetic environments such as chemical corrosion and electromagnetic interference, it can maintain normal operation thanks to its own characteristics.

[0065] The transceiver unit 20 is the system's read / write unit, directionally transmitting radio frequency electromagnetic waves of a certain energy to the gasket sensor 10. Upon receiving this energy, the antenna of the gasket sensor 10 provides power to its internal circuitry, activating and activating it. Subsequently, the gasket sensor 10 transmits a frequency signal reflecting the current preload state back to the transceiver unit 20 via its antenna. The transceiver unit 20 then uploads the received data to the ground-based centralized control platform 30 via a CAN bus interface.

[0066] The ground-based centralized control platform 30 is the brain of the system. It receives data from one or more transceivers 20, and its built-in algorithm analyzes the characteristics of the frequency signals and compares them with preset warning thresholds. Once the preload is detected to have dropped to an unsafe range, the ground-based centralized control platform 30 will immediately generate warning information in the form of sound and light, text messages, or system pop-ups to notify maintenance personnel to handle the situation promptly.

[0067] Figure 2 This is a schematic diagram illustrating the principle of a chain anti-loosening technology according to an embodiment of the present invention. (Refer to...) Figure 2 The gasket sensor 10 is used to monitor the preload of the chain fastener bolts. The transceiver 20 activates the gasket sensor 10 by emitting electromagnetic waves of a certain energy, and at the same time receives the frequency signal carrying the frequency information of the preload change transmitted back by the gasket sensor 10, and uploads it to the ground centralized control platform 30.

[0068] Working principle: When the system is working, the transceiver 20 periodically transmits interrogation signals (electromagnetic waves). After the gasket sensor 10 installed on the fastener is activated, the frequency of its returned signal has a definite correspondence with the preload of the bolt. By monitoring the offset of this frequency, the bottom centralized control platform 30 can deduce the change in preload in real time, realizing accurate judgment of loosening state and early warning.

[0069] The technical solution of this invention provides a chain anti-loosening system based on passive wireless sensors. The pad sensors are passive and wireless, offering flexible deployment. They require no external power supply or signal lines, completely solving the pain points of difficult wiring and battery maintenance in chain environments. This allows the sensors to be easily installed in locations where traditional sensors are difficult to deploy. By employing transceivers and a centralized ground control platform, unified management of multiple monitoring points can be achieved. Although the cost of a single sensor may be high, it saves a significant amount of cable laying and long-term maintenance costs, resulting in high system integration and cost-effectiveness. The system can continuously or on-demand monitor changes in preload, issuing an early warning before a loosening trend occurs, transforming periodic maintenance into predictive maintenance. Real-time online monitoring and early warning greatly improve safety. This solves the problem that existing chain anti-loosening systems cannot monitor the core parameter of bolt tightness—preload—leading to passive maintenance strategies and potential safety hazards in the chain. The system provides real-time, online, and accurate monitoring of the preload status of chain fasteners and issues early warnings of loosening, effectively improving the safety and reliability of equipment operation.

[0070] Continue to refer to Figure 1 Optionally, the transceiver 20 includes: a high-gain directional antenna 21;

[0071] The high-gain directional antenna 21 is used to directionally transmit electromagnetic waves to the pad sensor 10 and directionally receive the frequency signals transmitted back by the pad sensor 10.

[0072] Specifically, the transceiver unit 20 is the system's read / write unit. It transmits radio frequency electromagnetic waves of a certain energy to the pad sensor 10 via its integrated high-gain directional antenna 21. Upon receiving this energy, the antenna of the pad sensor 10 provides power to its internal circuitry, activating it. Subsequently, the pad sensor 10 transmits a frequency signal reflecting the current preload state back to the transceiver unit 20 via its antenna backscattering. The transceiver unit 20 is connected to the high-gain directional antenna 21 via a coaxial cable and uploads the received data to the ground-based centralized control platform 30 via a CAN bus interface.

[0073] Figure 3 This is a schematic diagram of the appearance of a gasket sensor according to an embodiment of the present invention, with reference to... Figure 3 Optionally, the pad sensor is conformally mounted to the chain fastener, and the pad sensor is elongated in shape.

[0074] The gasket sensor also has at least two mounting holes for mounting bolts, which are symmetrically distributed on the longitudinal axis of the gasket sensor.

[0075] Specifically, the gasket sensor is conformally mounted to the chain fasteners. This conformal design allows it to be seamlessly integrated into the chain fasteners, directly bearing the preload of the bolts. The specially designed conformal gasket sensor structure is compact, highly adaptable to various environments, does not affect the original structure of the equipment, and its passive wireless characteristics make it resistant to high temperatures, vibrations, and harsh industrial environments.

[0076] The gasket sensor is the core sensing unit of this system. It is designed as a mechanical structure that can directly replace the original gasket. The length L, width W, and height H of the gasket sensor can be 90mm, 30mm, and 6mm, respectively. The gasket sensor has two pre-drilled mounting holes for M8 bolts. The two mounting holes are symmetrically distributed along the longitudinal axis of the gasket sensor, with a center-to-center distance D1 of 24mm and a distance D2 from the center of the mounting hole to the rear edge of the sensor of 6.5mm.

[0077] Optionally, the transceiver and the ground centralized control platform can transmit data via a CAN bus interface or wireless communication.

[0078] Optionally, the ground-based centralized control platform compares the received frequency signal with a preset warning threshold to generate a chain loosening warning.

[0079] Optionally, the gasket sensor includes: a pressure-bearing structure, a sensitive unit, a sensing circuit, and an antenna connected in sequence;

[0080] The pressure-bearing structure, sensitive unit, sensing circuit and antenna are all integrated inside the sensor, which operates in a passive wireless manner.

[0081] Specifically, the gasket sensor internally encapsulates a pressure-bearing structure, a sensitive element, a sensing circuit, and a miniature antenna. Communication between the gasket sensor and the transceiver is wireless, requiring no external power or signal cables. Changes in bolt preload cause a change in the resonant frequency of the sensitive element within the gasket sensor.

[0082] Optionally, the sensing circuit is a passive wireless sensing circuit based on a piezoelectric resonator;

[0083] Alternatively, the sensing circuit can be a passive wireless sensing circuit based on two reverse-connected varactor diodes.

[0084] Specifically, the sensing circuit mainly consists of a piezoelectric resonator (such as a quartz crystal or piezoelectric ceramic resonator) and a small antenna, with the entire sensing node miniaturized and encapsulated in an insulating manner. Alternatively, the sensing circuit is a passive wireless sensing circuit based on two varactor diodes connected in reverse series. This circuit mainly includes the two varactor diodes, a fixed inductor (forming an LC resonant circuit), and a small antenna. Both types of passive wireless sensing circuits achieve passive, wireless, and continuous monitoring of changes in bolt preload.

[0085] Figure 4 This is a flowchart of a chain anti-loosening monitoring method for an aluminum alloy lifting platform according to an embodiment of the present invention. This embodiment is applicable to chain anti-loosening monitoring. The method can be executed by a chain anti-loosening system, which can be implemented in hardware and / or software and can be configured in electronic equipment. Figure 4 As shown, the method includes:

[0086] S110. Electromagnetic waves are transmitted to the gasket sensor via a transceiver device to activate the gasket sensor.

[0087] S120: The bolt preload change is detected by the gasket sensor and a frequency signal carrying the preload information is transmitted back.

[0088] S130: Receives frequency signals through a transceiver and transmits them to a ground-based centralized control platform.

[0089] S140. The received frequency signal is judged by the ground centralized control platform to determine whether it exceeds the warning threshold and a warning message is generated.

[0090] Specifically, in combination Figure 1 The gasket sensor 10 is used to monitor the preload of the chain fastener bolts. The transceiver unit 20 is the system's read / write unit, directionally emitting radio frequency electromagnetic waves of a certain energy towards the gasket sensor 10. Upon receiving this energy, the antenna of the gasket sensor 10 provides power to its internal circuitry, activating it. Subsequently, the gasket sensor 10 transmits a frequency signal reflecting the current preload state back to the transceiver unit 20 via its antenna backscattering. The ground-based centralized control platform 30 is the system's brain, receiving data from one or more transceivers 20. Its built-in algorithm analyzes the characteristics of the frequency signals and compares them with preset warning thresholds. Once a drop in preload to an unsafe range is detected, the ground-based centralized control platform 30 immediately generates warning information in the form of sound and light, SMS messages, or system pop-ups to notify maintenance personnel for timely handling.

[0091] The chain anti-loosening monitoring method for aluminum alloy lifting platforms provided in this embodiment of the invention is used in the chain anti-loosening system provided in any embodiment of the invention. Therefore, the chain anti-loosening monitoring method for aluminum alloy lifting platforms provided in this embodiment of the invention also has the beneficial effects described in the above embodiments, which will not be repeated here.

[0092] Optionally, the received frequency signal is judged by the ground centralized control platform to determine whether it exceeds the warning threshold and to generate warning information, including: calibration stage, monitoring stage and judgment stage;

[0093] The calibration phase includes: when the elevator is unloaded, the ground centralized control platform controls the elevator to perform lifting and lowering actions with different speeds, and at multiple preset height positions, the preload data of the chain fastener bolts are collected by the shim sensor to establish a calibration database containing the correspondence between height, motion state and preload.

[0094] The monitoring phase includes: during the actual operation of the elevator, the ground centralized control platform collects bolt preload data in real time under the current state, and queries the calibration database based on the current height and movement status to obtain the corresponding calibration preload value;

[0095] The judgment phase includes: the ground centralized control platform compares the real-time collected preload data with the calibrated preload value obtained from the query. If the real-time preload value is less than the calibrated value, it determines that the bolt has a loosening fault and immediately triggers an early warning and controls the elevator to stop.

[0096] Specifically, during the operation of aluminum alloy lifting platforms, the preload of the chain fastener bolts is a key parameter ensuring the safety and stability of the equipment. To monitor bolt loosening in real time and prevent safety accidents caused by bolt failure, high-precision shim sensors can be used to detect the preload, and dynamic and static calibration can be performed in conjunction with the Electronic Control Unit (ECU) in the ground-based centralized control platform. The following are detailed detection and calibration procedures and technical implementation methods.

[0097] In actual operation, the ECU achieves real-time monitoring and fault warning through the following steps: Data Query: Based on the current height and movement status of the elevator (lifting / lowering, dynamic / static), the corresponding preload calibration value is retrieved from the calibration database. Data Comparison: The shim sensor collects the preload data in real time under the current condition. The real-time data is compared with the calibration value. Fault Judgment: If the real-time preload value is less than the calibration value, it is determined that there is a risk of bolt loosening. The ECU immediately triggers a fault alarm and controls the elevator to stop, avoiding further safety hazards.

[0098] The technological advantages are: Comprehensiveness: A calibration method combining dynamic and static approaches covers all possible operating conditions. High Precision: 50 height settings ensure precise and accurate data. Real-time Performance: Millisecond-level response through rapid ECU query and comparison. Safety: A fault warning mechanism effectively prevents accidents caused by loose bolts.

[0099] Application scenarios include: Vehicle assembly lines: for monitoring the condition of bolts in high-precision lifting equipment. Industrial production lines: suitable for heavy equipment requiring frequent lifting. Maintenance and inspection: as an auxiliary tool for regular maintenance, quickly identifying potential problems.

[0100] Optionally, the calibration phase specifically includes: dynamic calibration and static calibration;

[0101] Dynamic calibration includes: the ground centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear.

[0102] Static calibration includes: the ground-based centralized control platform controls the elevator to rise or fall to each height level and then stops. After the equipment stabilizes, the bolt preload data under static conditions is collected.

[0103] Using the above method, the detection and calibration of chain fastener bolt preload in aluminum alloy lifting platforms has achieved automation, high precision, and real-time monitoring. The combination of dynamic and static data not only improves the reliability of the detection but also provides strong support for the safe operation of the equipment. In the future, this technology can be further extended to other industrial scenarios requiring bolt condition monitoring, showing broad application prospects.

[0104] Optionally, the ground-based centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear, including: dynamic calibration of no-load lifting and dynamic calibration of no-load lowering.

[0105] The dynamic calibration of no-load lifting includes: performing no-load lifting at at least three different speeds, and collecting preload data at each height level during the lifting process;

[0106] The dynamic calibration of no-load descent includes performing no-load descent at at least three different speeds and collecting preload data at each height level during the descent.

[0107] Specifically, the calibration work is divided into four stages: dynamic calibration of no-load lifting, dynamic calibration of no-load lowering, static calibration of no-load lifting, and static calibration of no-load lowering, covering different motion states of the elevator to ensure the comprehensiveness and accuracy of the data.

[0108] The specific steps for dynamic calibration of no-load lifting are as follows: The elevator lifts at three different speeds (low, medium, and high). During the lifting process, the maximum lifting height is evenly divided into 50 levels. At each height level, the shim sensor collects real-time data on the preload of the chain fastener bolts. The preload data at 50 height points at each speed is recorded. The purpose is to analyze the dynamic impact of different lifting speeds on the bolt preload.

[0109] The specific steps for dynamic calibration of unloaded descent are as follows: The elevator descends at three different speeds. During the descent, 50 height levels are defined. Preload data at each height point is collected and recorded in real time. The purpose is to study the variation pattern of bolt preload during descent.

[0110] Optionally, the ground-based centralized control platform controls the elevator to rise or fall to each height level and then stops. After the equipment stabilizes, it collects static bolt preload data, including: static calibration of no-load lifting and static calibration of no-load lowering.

[0111] The static calibration of no-load lifting includes: after completing the dynamic calibration of no-load lifting, collecting static preload data after stopping and stabilizing at each height position;

[0112] The static calibration of unloaded descent includes: after completing the dynamic calibration of unloaded descent, collecting static preload data after stopping and stabilizing at each height level.

[0113] Specifically, the operation steps for static calibration under no-load lifting are as follows: The elevator is raised to each height level and then stopped. Wait for the equipment to stabilize completely (e.g., vibration disappears). The shim sensor collects and records the preload data under static conditions. The purpose is to obtain the reference preload value under static operating conditions.

[0114] The specific steps for static calibration under no-load descent are as follows: The elevator descends to each height level and then stops. After the equipment stabilizes, static preload data is collected and recorded. The purpose is to supplement static operating condition data and ensure the integrity of the calibration database. All calibration data is stored in the ECU's memory, forming a complete preload calibration database.

[0115] Figure 5 A schematic diagram of an electronic device 1, which can be used to implement embodiments of the present invention, is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0116] like Figure 5As shown, the electronic device 1 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded into the RAM 13 from storage unit 18. The RAM 13 can also store various programs and data required for the operation of the electronic device 1. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0117] Multiple components in electronic device 1 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of monitors, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 1 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0118] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as chain anti-loosening monitoring methods.

[0119] In some embodiments, the chain anti-loosening monitoring method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 1 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the chain anti-loosening monitoring method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the chain anti-loosening monitoring method by any other suitable means (e.g., by means of firmware).

[0120] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0121] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0122] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0123] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0124] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0125] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0126] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0127] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A chain anti-loosening system, characterized in that, include: Multiple gasket sensors, transceivers, and a ground-based centralized control platform; The multiple gasket sensors are respectively installed on different chain fasteners, and the multiple gasket sensors are used to monitor the preload of the corresponding bolts. The gasket sensors are passive wireless sensors. The transceiver is wirelessly connected to the gasket sensor. The transceiver is used to transmit electromagnetic waves to activate the gasket sensor and to receive frequency signals carrying preload information transmitted back by the gasket sensor. The ground-based centralized control platform is communicatively connected to the transceiver device. The ground-based centralized control platform is used to receive the frequency signal uploaded by the transceiver device, analyze the changes in the frequency signal to determine whether the preload is lower than the warning threshold, and generate warning information.

2. The system according to claim 1, characterized in that, The transceiver includes: a high-gain directional antenna; The high-gain directional antenna is used to directionally transmit electromagnetic waves to the pad sensor and directionally receive the frequency signals returned by the pad sensor.

3. The chain anti-loosening system according to claim 1, characterized in that, The gasket sensor is conformally mounted to the chain fastener, and the gasket sensor is elongated in shape. The gasket sensor also has at least two mounting holes for mounting bolts, which are symmetrically distributed on the longitudinal axis of the gasket sensor.

4. The chain anti-loosening system according to claim 1, characterized in that, The transceiver device transmits data to the ground-based centralized control platform via a CAN bus interface or wireless communication. The ground-based centralized control platform compares the received frequency signal with a preset warning threshold to generate a chain loosening warning.

5. The chain anti-loosening system according to claim 1, characterized in that, The gasket sensor includes: a pressure-bearing structure, a sensitive unit, a sensing circuit, and an antenna connected in sequence; The pressure-bearing structure, the sensitive unit, the sensing circuit, and the antenna are all integrated inside the sensor, and the sensor operates in a passive wireless manner. The sensing circuit is a passive wireless sensing circuit based on a piezoelectric resonator. Alternatively, the sensing circuit may be a passive wireless sensing circuit based on two reverse-connected varactor diodes.

6. A method for monitoring chain loosening in an aluminum alloy lifting platform, employing the chain loosening prevention system as described in any one of claims 1-5, characterized in that, include: The pad sensor is activated by transmitting electromagnetic waves to it via a transceiver device. The gasket sensor detects changes in bolt preload and transmits back a frequency signal carrying preload information. The frequency signal is received by the transceiver and transmitted to the ground-based centralized control platform. The ground-based centralized control platform determines whether the received frequency signals exceed the warning threshold and generates warning information.

7. The method according to claim 6, characterized in that, The process of determining whether the received frequency signal exceeds the warning threshold and generating warning information through the ground centralized control platform includes: calibration stage, monitoring stage, and judgment stage. The calibration stage includes: when the elevator is unloaded, the ground centralized control platform controls the elevator to perform lifting and lowering actions with different speeds, and at multiple preset height positions, the shim sensor collects the preload force data of the chain fastener bolts to establish a calibration database containing the correspondence between height, motion state and preload force. The monitoring phase includes: during the actual operation of the elevator, the ground centralized control platform collects bolt preload data in real time under the current state, and queries the calibration database according to the current height and movement state to obtain the corresponding calibration preload value; The judgment stage includes: the ground centralized control platform compares the real-time collected preload data with the calibrated preload value obtained by query. If the real-time preload value is less than the calibrated value, it determines that the bolt has a loosening fault and immediately triggers an early warning and controls the elevator to stop.

8. The method according to claim 7, characterized in that, The calibration phase specifically includes: dynamic calibration and static calibration; The dynamic calibration includes: the ground centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear. The static calibration includes: after the ground centralized control platform controls the elevator to rise or fall to each height level and stops, and after the equipment stabilizes, the bolt preload data under static conditions is collected.

9. The method according to claim 8, characterized in that, The ground centralized control platform controls the elevator to perform continuous lifting and lowering movements at at least two different speeds. During the movement, the lifting height is evenly divided into multiple gears, and the preload data of the bolts is collected in real time when passing through each height gear, including: dynamic calibration of no-load lifting and dynamic calibration of no-load lowering. The no-load lifting dynamic calibration includes: performing no-load lifting at at least three different speeds, and collecting preload data at each height level during the lifting process; The no-load descent dynamic calibration includes: performing no-load descent at at least three different speeds, and collecting preload data at each height level during the descent.

10. The method according to claim 8, characterized in that, The ground centralized control platform controls the elevator to rise or fall to each height level and then stops. After the equipment stabilizes, it collects static bolt preload data, including: no-load lifting static calibration and no-load lowering static calibration. The no-load lifting static calibration includes: after completing the no-load lifting dynamic calibration, collecting static preload data after stopping and stabilizing at each height position; The static calibration of unloaded descent includes: after completing the dynamic calibration of unloaded descent, collecting static preload data after stopping and stabilizing at each height level.

11. An electronic device, characterized in that, include: One or more processors; Memory, used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described in any one of claims 6-10.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 6-10.

Images