Power generation coding wireless anti-falling safety protector and control system thereof

Abstract

The invention discloses a power generation coding wireless anti-falling safety protector and a control system thereof, and relates to the technical field of anti-falling safety protection. The protector comprises a self-power-generation wireless transmitter and a receiving controller; the self-generating wireless transmitter is configured to generate electric energy based on the action of a pull rope of the anti-falling device and generate a wireless signal containing a unique address code and a switch instruction; and the receiving controller is configured to be connected to a 220V mains supply, convert the 220V mains supply into a stable direct current voltage, receive the wireless signal, then perform address code matching verification, respond to a switch instruction according to a verification result, control an external load and store a load control state at the same time. Anti-falling protection autonomous signal transmission is realized, and wired constraint is avoided; the modular design guarantees full-process closed-loop control, various external loads are compatible, the multi-scene requirements are met, and anti-falling all-directional protection is strengthened.

Description

Technical Field

[0001] This invention relates to the field of fall protection technology, specifically to a power-generating coded wireless fall protection device and its control system. Background Technology

[0002] In industrial production, construction, and high-altitude operations, fall arrestor equipment is a crucial device for ensuring the safety of workers and the stable operation of equipment. With increasingly stringent safety requirements, traditional equipment relying on mechanical structures for basic fall arrest functionality is no longer sufficient to meet the demands of modern work environments for real-time monitoring, intelligent response, and remote collaboration. Currently, fall arrestors are increasingly moving towards electronic and wireless technologies. By introducing signal transmission and automatic control technologies, they enable rapid identification of fall arrest actions and the coordinated triggering of subsequent protective measures. For example, when abnormal rope movement is detected, alarms, braking, or the disconnection of dangerous circuits can be initiated promptly to minimize safety risks. Under this technological trend, addressing the stability of power supply, the reliability of signal transmission, and the accuracy of control commands has become a core direction for upgrading fall arrestors, providing clear application scenarios and demand guidance for related technology research and development.

[0003] Traditional fall arresters have many shortcomings in both technical implementation and practical application. Some devices use wired connections for signal and power transmission, which not only requires complex wiring and increases installation costs and difficulty, but is also prone to signal interruption or power failure due to cable wear, aging, or external environmental interference, affecting the normal triggering of the protection function. Other devices rely on external batteries for power, requiring regular battery replacement to maintain operation, which not only increases maintenance workload and costs, but may also lead to loss of protection capability due to battery depletion, posing a safety hazard. At the same time, traditional devices lack effective coding verification mechanisms for signal recognition and command execution, making them susceptible to external electromagnetic interference or signals from similar devices, resulting in false triggering or missed triggering, and failing to accurately respond to fall arrest actions. In addition, most traditional devices do not have state memory functions, and when power is restored after a power outage, the previous load control state cannot be restored, requiring manual reset, which reduces the continuity and automation level of system operation and makes it difficult to meet the needs of efficient and reliable modern safety protection. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a self-generating coded wireless fall arrestor and its control system. Its core is the establishment of one-way communication between a self-generating wireless transmitter and a receiving controller. The self-generating wireless transmitter uses the fall arrestor's pull rope action to drive a miniature permanent magnet generator to generate a wireless signal containing a unique address code and a switching command. The receiving controller connects to mains power, receives the signal, performs address code matching verification, and upon successful verification, responds to the switching command to control the external load and stores the load status, ensuring timely and accurate fall arrest protection and improving operational safety.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: On the one hand, a self-generating wireless fall arrestor, which includes a self-generating wireless transmitter and a receiver controller; The self-generating wireless transmitter is configured to generate electrical energy based on the action of the fall arrestor's pull rope, and generate a wireless signal containing a unique address code and a switching command. The receiver controller is configured to connect to 220V AC mains power and convert it to a stable DC voltage. After receiving the wireless signal, it performs address code matching verification, responds to switch commands based on the verification results, controls the external load, and stores the load control status. The self-generating wireless transmitter and the receiving controller establish one-way communication through wireless coded signals. The load control action corresponding to the switching command is only executed when the receiving controller verifies that the address code matches.

[0006] Furthermore, the self-generating wireless transmitter includes a mechanical energy-to-electrical energy conversion module, an energy management and control module, and a signal generation and transmission module; the mechanical energy-to-electrical energy conversion module is a miniature permanent magnet generator, connected to the rope retraction mechanism of the fall arrestor; the energy management and control module includes a rectifier circuit, a voltage regulator capacitor, and a controller connected in sequence, with the input terminal of the rectifier circuit connected to the output terminal of the miniature permanent magnet generator, and the output terminal of the voltage regulator capacitor connected to the power supply terminal of the controller; the signal generation and transmission module includes an encoder and a wireless transmission module, with the encoder connected to the signal output terminal of the controller, and the wireless transmission module connected to the signal output terminal of the encoder.

[0007] Furthermore, the micro permanent magnet generator is a disc generator or a micro turbine generator, and its shaft is coupled to the rope winding and unwinding mechanism through a gear set or a one-way bearing.

[0008] Furthermore, the programming logic of the controller is as follows: each time the self-generating wireless transmitter is triggered, it drives the encoder to generate a data packet containing a switching instruction, which is used to control the state switching of the external load.

[0009] Furthermore, the voltage stabilizing capacitor is a large-capacity electrolytic capacitor or supercapacitor with a capacitance of 100μF-1000μF and an output voltage range of 3.3V-5V; the wireless transmission module operates in the 433MHz, 2.4GHz, or LoRa band.

[0010] Furthermore, the receiving controller includes a power supply module, a signal receiving and processing module, a logic identification module, and an execution and memory module; the power supply module includes a step-down unit, a rectification and filtering unit, and a voltage regulator unit connected in sequence, with the input terminal of the step-down unit connected to 220V AC mains power; the signal receiving and processing module includes a wireless receiving module and a signal amplifier, with the output terminal of the wireless receiving module connected to the input terminal of the signal amplifier; the logic identification module is the main control chip, with the signal input terminal of the main control chip connected to the output terminal of the signal amplifier; the execution and memory module includes a relay and a state memory unit, with the relay coil connected to the signal output terminal of the main control chip, and the state memory unit having a bidirectional communication connection with the main control chip.

[0011] Furthermore, the state memory unit is an EEPROM or FRAM non-volatile memory, which is connected to the main control chip via I2C or SPI communication protocol.

[0012] Furthermore, the external load is one or more of the following: an audible and visual alarm, an electromagnetic brake, a central monitoring system, or an equipment emergency stop circuit. The relay contacts are connected to the power supply or control terminal of the load via wires.

[0013] Furthermore, the operating frequency band of the wireless receiving module is the same as that of the wireless transmitting module.

[0014] On the other hand, the control system of the power-generating coded wireless fall arrestor includes: Energy harvesting layer: consists of a pull rope for the fall arrestor and a miniature permanent magnet generator. The pull rope's movement drives the miniature permanent magnet generator to rotate and generate alternating current. Signal generation layer: It consists of a rectifier circuit, a voltage regulator capacitor, a controller, an encoder, and a wireless transmission module. The rectifier circuit converts AC power into DC power, the voltage regulator capacitor stores DC power and outputs a stable voltage, the controller is activated after the voltage reaches the standard, drives the encoder to generate a data packet containing a unique address code and a switching command, and the wireless transmission module transmits the data packet. Signal receiving layer: consists of a wireless receiving module and a signal amplifier. The wireless receiving module receives the data packets, and the signal amplifier amplifies the data packets. Logic processing layer: Composed of main control chip. The main control chip has pre-stored address codes. It performs address code matching and verification on the amplified data packet. After the verification is successful, it parses the switch instruction and outputs switch control signal. The execution memory layer consists of relays and a state memory unit. The relay coil receives the switching control signal and drives the contacts to operate, controlling the on / off state of the external load. The state memory unit stores the current state of the relay contacts. After the controller is powered on again, the main control chip reads the state and controls the relay to restore the state.

[0015] Compared with existing technologies, this power generation coded wireless fall arrestor and its control system have the following advantages: I. This invention utilizes a one-way wireless coded communication design between a self-generating wireless transmitter and a receiver controller. This allows for autonomous signal generation and transmission without the need for an additional power supply, completely eliminating the constraints of wired connections and significantly improving installation flexibility and ease of use. The power conversion module generates electricity based on the pull-cord action, and the energy management and control module efficiently stores and stably outputs this electricity, ensuring continuous and reliable signal generation and transmission. The receiver controller, through an address code matching verification mechanism, only responds to switching commands corresponding to legitimate signals, effectively preventing false triggering and signal interference, and ensuring the accuracy of load control actions. Simultaneously, the load control state is stored in real time, allowing for rapid restoration of the original state even after power is restored, maintaining system continuity. This invention is suitable for various scenarios requiring fall protection, significantly improving the safety and stability of equipment operation.

[0016] II. This invention utilizes a modular design to separate the functional units of the transmitter and receiver controller. Each module works collaboratively to achieve a closed-loop control process encompassing energy acquisition, signal processing, logic verification, and execution memory. The signal generation layer rectifies and stabilizes the electrical energy to ensure stable operation of the controller and encoder, generating data packets with unique address codes to ensure the uniqueness and security of signal transmission. The signal receiving layer enhances the sensitivity and accuracy of data packet reception through signal amplification. The logic processing layer quickly completes code matching and instruction parsing. The execution memory layer precisely controls the actions of external loads and stores their states. The compatible design with various external loads meets the safety protection needs of different scenarios, achieving multi-functional integration of audible and visual alarms, emergency braking, and centralized monitoring. This comprehensively strengthens fall protection coverage, providing multiple layers of protection for equipment and personnel safety.

[0017] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 A block diagram illustrating the structural principle of a self-generating wireless transmitter. Figure 2 This is a block diagram illustrating the structural principle of the receiving control device. Figure 3 A schematic diagram of the overall structure of a wireless fall arrestor with a generator code. Figure 4 This is a schematic diagram of the system's wireless signal transmission link; Figure 5 A schematic diagram showing the connection of a self-generating wireless transmitter module; Figure 6 This is a schematic diagram showing the composition and connection of the receiver controller module; Figure 7 Flowchart illustrating the working principle of a wireless fall protection system for generator coding; 101. Fall arrestor rope; 102. Miniature permanent magnet generator; 103. Rectifier circuit; 104. Voltage stabilizing capacitor; 105. Controller; 106. Encoder; 107. Wireless transmitter module; 200. Receiver controller; 201. Step-down unit; 202. Rectifier and filter unit; 203. Voltage stabilizing unit; 204. Wireless receiver module; 205. Signal amplifier; 206. Main control chip; 207. Relay; 208. Status memory unit. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Example 1: Generator-coded wireless fall arrestor.

[0022] This embodiment details the specific structure, connection relationships, component functions, and working principle of the generator-coded wireless fall arrestor, which is applicable to fall arrest safety protection scenarios for high-altitude work equipment.

[0023] Overall structure and connection relationships: The safety protector consists of two core components: a self-generating wireless transmitter and a receiver controller 200. The two communicate one-way via wireless coded signals without physical wiring, which effectively avoids the problems of wear and tangling caused by wired connections in high-altitude environments.

[0024] Self-powered wireless transmitter: The self-generating wireless transmitter is integrated inside the fall arrestor body. The modules adopt a compact layout, and the specific connection relationship is as follows: The mechanical energy to electrical energy conversion module uses a PMG-12 miniature disc-type permanent magnet generator 102. Its shaft is rigidly coupled to the fall arrestor's rope 101 retraction and deployment mechanism via a precision gear set with a reduction ratio of 3:1. When the rope 101 is retracted or deployed, it drives the gear set to rotate, which in turn drives the generator shaft to rotate, realizing the conversion of mechanical energy into electrical energy. This generator is compact in size, has a rated output voltage of 12V, and is suitable for rope 101 retraction and deployment speeds of 0.5-2m / s.

[0025] In the energy management and control module, the rectifier circuit 103 adopts a single-phase bridge rectifier circuit. Its input terminal is soldered to the two output terminals of the micro permanent magnet generator 102 through shielded wires to convert the AC power generated by the generator into DC power. The output terminal of the rectifier circuit 103 is connected to the positive terminal of a 470μF aluminum electrolytic voltage regulator capacitor 104, and the negative terminal of the capacitor is grounded. This capacitor can store electrical energy and filter out ripple in the DC voltage, outputting a stable 5V DC voltage. The output terminal of the voltage regulator capacitor 104 is connected to the VCC pin of the STM32F103 microcontroller 105 through DuPont wires to provide operating power to the controller 105.

[0026] In the signal generation and transmission module, encoder 106 uses an HT630 wireless encoding chip. Its data input pin DI is connected to the general-purpose output pin PA0 of controller 105 via a ribbon cable. The power supply of encoder 106 is connected in parallel with the output of voltage regulator capacitor 104. Wireless transmission module 107 uses an SX1278 RF module with a working frequency of 433MHz. Its data input is connected to the signal output pin DO of encoder 106. The power supply is also provided by voltage regulator capacitor 104. The transmission power is set to 10dBm, and the communication distance can reach 100 meters, meeting the signal transmission requirements of high-altitude work equipment.

[0027] Receiver controller 200: The receiver controller 200 adopts a wall-mounted design and is installed inside the equipment control cabinet. The connection relationship of each module is as follows: In the power supply module, the step-down unit 201 uses an EI-35 power frequency transformer. Its input is connected to 220V AC mains via a three-core power cable, stepping the AC mains voltage down to 12V AC. The output of the step-down unit 201 is connected to the rectifier and filter unit 202, which consists of a rectifier bridge and a 1000μF filter capacitor, converting the 12V AC to a smooth DC voltage. The output of the rectifier and filter unit 202 is connected to the input of the LM7805 voltage regulator unit 203, outputting a stable 5V DC voltage to power the various modules of the receiver controller 200.

[0028] In the signal receiving and processing module, the wireless receiver module 204 uses the SX1278 RF module, which is compatible with the transmitter module and operates in the same 433MHz frequency band. Its output is connected to the input of the signal amplifier 205 (model OPA2376) via a shielded wire. The signal amplifier 205 amplifies the received weak wireless signal by 100 times, ensuring that subsequent modules can accurately identify the signal.

[0029] The logic identification module uses the STM32F407 main control chip 206. Its signal input pin PB0 is connected to the output of the signal amplifier 205 via a ribbon cable. The main control chip 206 has a built-in Flash memory that pre-stores a unique address code that matches the corresponding self-generating wireless transmitter.

[0030] In the execution and memory module, relay 207 is an HH52P electromagnetic relay. Its coil input is connected to the output pin PC13 of the main control chip 206 via a transistor drive circuit. The normally open contact of relay 207 is connected to the power supply of the external load via a copper core wire. The state memory unit 208 uses an AT24C64 EEPROM non-volatile memory. Its SDA and SCL pins are connected to the corresponding pins of the main control chip 206 via an I2C communication bus to achieve bidirectional data communication. EEPROM is a non-volatile memory; FRAM is a non-volatile memory with high-speed read / write and low-power characteristics; I2C is a serial communication protocol used to connect low-speed peripheral devices; SPI is a synchronous serial communication protocol used for short-distance communication; LoRa is a low-power wide-area network communication technology suitable for long-distance wireless transmission.

[0031] Function of the component: Miniature permanent magnet generator 102: The core energy conversion component, it generates electricity autonomously through the action of pulling the rope 101 without the need for an external power source, ensuring that the transmitter can work stably in an environment without an external power source.

[0032] Zener capacitor 104: It has both energy storage and voltage regulation functions. It can store the electrical energy generated by the generator and provide a continuous and stable operating voltage for modules such as controller 105 and encoder 106, so as to avoid module malfunction caused by voltage fluctuations.

[0033] Encoder 106: Generates data packets with unique address codes. Each transmitter corresponds to a unique address code, ensuring the uniqueness and anti-interference of signal transmission and avoiding signal crosstalk between different devices.

[0034] Main control chip 206: The core processing unit of the receiver controller, responsible for address code matching and verification, switch command parsing and control signal output, is a key component for achieving precise load control.

[0035] State memory unit 208: Stores the load control state, so that even if the receiver controller 200 is powered off and then powered on again, it can quickly restore the previous load working state and ensure the continuity of the protection function.

[0036] Relay 207: As a switching element between the main control chip 206 and the external load, it controls the on / off state of the load through contact action, realizing the safe conversion of low-voltage control to high-voltage control.

[0037] Working principle: When a worker or equipment working at height triggers the fall arrestor, the pull rope 101 will quickly extend and retract, causing the shaft of the coupled miniature permanent magnet generator 102 to rotate at high speed, generating 12V AC power. This AC power is converted into DC power by the rectifier circuit 103 and then sent to the voltage regulator capacitor 104. The capacitor stores electrical energy and outputs a stable 5V DC voltage, activating the controller 105.

[0038] Once activated, the controller 105 sends control signals to the encoder 106 according to the preset programming logic, driving the encoder 106 to generate a data packet containing a unique address code and a switching command. The data packet is then wirelessly transmitted via the wireless transmission module 107 in the 433MHz frequency band with a transmission power of 10dBm, ensuring that the signal can penetrate the equipment casing and complex operating environments.

[0039] The receiver controller 200 receives the data packet via the wireless receiver module 204. Since the data packet may attenuate during transmission, the signal amplifier 205 amplifies the data packet by 100 times before transmitting it to the main control chip 206. The main control chip 206 calls a pre-stored address code and matches it with the address code in the received data packet. If the codes match, the switch command in the data packet is parsed; if the codes do not match, the data packet is ignored and no operation is performed.

[0040] After successful verification, the main control chip 206 outputs the corresponding switch control signal, driving the coil of relay 207 to energize. The normally open contact of relay 207 closes, connecting the power circuit of the external load, such as an audible and visual alarm, and the load starts working, causing the audible and visual alarm to emit an audible and visual warning. At the same time, the main control chip 206 transmits the current contact state of relay 207 to the state memory unit 208, where the EEPROM memory permanently stores this state.

[0041] If the receiver controller 200 restarts due to a power outage or other reasons, the main control chip 206, upon power-on, will first read the load control state stored in the state memory unit 208 via the I2C bus, driving the relay 207 to return to that state, such as keeping the contacts closed, so that the audible and visual alarm continues to work, ensuring that the fall protection function is not interrupted. When the fall arrestor is triggered again, the transmitter will send a switching command containing "disconnect the load power supply". After parsing, the main control chip 206 controls the relay 207 contacts to open, the load stops working, and a complete control cycle is completed.

[0042] Example 2: Control system for a generator-coded wireless fall arrestor.

[0043] This embodiment is based on a control system for a power generation coded wireless fall arrestor. Combining the power generation coded wireless fall arrestor, it elaborates in detail the complete usage process of this control system in fall protection for high-altitude work platforms, including the entire chain process of system startup, signal acquisition, transmission, processing, execution, and status memory, realizing closed-loop control from fall arrest triggering to safety protection.

[0044] This control system is applied to aerial work platforms with a rated load of 500kg and an operating height of 0-15m. It is equipped with two sets of fall arresters, each of which is equipped with a self-generating wireless transmitter. The receiver controller 200 is installed in the platform control cabinet. External loads include audible and visual alarms, electromagnetic brakes, and a central monitoring system.

[0045] System initialization and standby: When the 220V AC mains power supply of the receiver controller 200 is turned on, the power module starts to work: the step-down unit 201 steps down the 220V AC mains power to 12V AC power, which is then converted into smooth DC power by the rectifier and filter unit 202. The voltage regulator unit 203 outputs a stable 5V voltage to power the wireless receiver module 204, signal amplifier 205, main control chip 206, relay 207 and status memory unit 208.

[0046] After power-on, the main control chip 206 completes initialization and reads the historical load control status stored in the status memory unit 208 via the I2C bus. If it is the first startup, there is no historical status record, and the main control chip 206 controls the relay 207 contacts to open by default, and all external loads are in standby mode.

[0047] When the self-generating wireless transmitter is not triggered, the miniature permanent magnet generator 102 does not rotate and generates no electricity. The energy management and control module and the signal generation and transmission module are both in a dormant state, reducing equipment power consumption. At this time, the aerial work platform can perform lifting, moving, and other operations normally.

[0048] Fall protection triggering and energy harvesting: When an aerial work platform accidentally falls, the fall arrestor quickly activates its braking function. The pull rope 101 rapidly extends and retracts under the impact of the fall, driving the shaft of the miniature permanent magnet generator 102, coupled to it via a gear set, to rotate at high speed. The miniature permanent magnet generator 102 generates 12V, 50Hz alternating current through electromagnetic induction, converting mechanical energy into electrical energy to provide power for subsequent signal generation. This energy harvesting process requires no external power supply and has a response time of less than 0.1 seconds, ensuring rapid activation of the protection process in the initial stages of a fall.

[0049] Signal generation and wireless transmission: The alternating current generated by the miniature permanent magnet generator 102 is transmitted to the rectifier circuit 103 through shielded wires. It is then converted into 15V direct current by a single-phase bridge rectifier circuit and subsequently supplied to a 470μF voltage regulator capacitor 104. The voltage regulator capacitor 104 quickly stores electrical energy, filters out ripple in the DC voltage, and outputs a stable 5V DC voltage to power the controller 105, encoder 106, and wireless transmitter module 107.

[0050] Upon detecting a stable voltage, the controller 105 activates immediately and sends a trigger signal to the encoder 106 according to the preset programming logic. Upon receiving the signal, the encoder 106 generates a data packet containing a unique address code and a switching instruction. The data packet uses Manchester encoding to ensure transmission stability.

[0051] The data packets generated by encoder 106 are transmitted to wireless transmission module 107, which wirelessly transmits the data packets in the 433MHz band with a transmission power of 10dBm. The signal coverage range can reach 100 meters, which is sufficient to cover the distance between the aerial work platform and the ground control room.

[0052] Signal reception and amplification processing: The wireless receiving module 204 of the receiver controller 200 monitors the wireless signal of the corresponding frequency band in real time. After receiving the data packet sent by the transmitter, it converts it into an electrical signal for output. Due to the possibility of electromagnetic interference in the high-altitude working environment, the received electrical signal is relatively weak and needs to be amplified by the signal amplifier 205.

[0053] Signal amplifier 205 employs a low-noise operational amplifier to amplify weak electrical signals to a 1V amplitude while filtering out interference noise to ensure signal integrity and accuracy. The amplified data packet is transmitted to the signal input terminal of the main control chip 206 via a ribbon cable.

[0054] Logic processing and address verification: After receiving the amplified data packet, the main control chip 206 first decodes the data packet to extract the address code and switch command. The main control chip 206 has two sets of unique address codes for the self-generating wireless transmitter pre-stored in its built-in Flash memory, used for matching and verification with the received address code.

[0055] If the received address code matches the pre-stored code, it is determined to be a valid signal, and the main control chip 206 continues to parse the switch command; if the address code does not match, it is determined to be an invalid signal, and the main control chip 206 discards the data packet and does not perform any control operation to ensure the system's anti-interference capability.

[0056] Load execution and state memory: After the main control chip 206 interprets the switch instruction as "start protection load", it immediately outputs three switching control signals, which are transmitted to the coil input terminals of the corresponding relays 207 through the transistor drive circuit. After the coil of relay 207 is energized, it generates electromagnetic attraction, driving the normally open contact to close and connecting the power supply circuit of the external load.

[0057] When the external load is connected, the system starts working synchronously: the audible and visual alarm emits a piercing alarm sound and flashing red light to alert personnel around the platform to pay attention to safety; the electromagnetic brake immediately grips the platform's lifting guide rail, generating a strong braking force to stop the platform from falling within 0.5 seconds; after receiving the signal, the central monitoring system displays the alarm information on the screen in the ground control room, showing the time of the fall, the platform number, and the location, and simultaneously triggers the audible and visual alarm in the control room to notify management personnel to handle the situation promptly.

[0058] While controlling the relay 207 to operate, the main control chip 206 transmits the current load control status to the EEPROM memory of the status memory unit 208 via the I2C bus. This memory permanently stores the status data, which will not be lost even if the power is turned off later.

[0059] Troubleshooting and System Reset: After receiving the alarm, the management personnel rushed to the scene to troubleshoot the fault. After confirming that the platform and personnel were safe, they manually reset the fall arrestor, the pull rope 101 returned to its initial position, the miniature permanent magnet generator 102 stopped rotating, and the self-generating wireless transmitter stopped working.

[0060] The administrator can send a "reset" command through the central monitoring system from the ground control room, or directly press the reset button on the receiver controller 200. After receiving the reset command, the main control chip 206 outputs a low-level control signal, the coil of the relay 207 is de-energized, the contacts are opened, and the external load stops working.

[0061] The main control chip 206 updates the load status stored in the status memory unit 208, and the system returns to the initial standby state, waiting for the next fall protection trigger. If the receiver controller 200 loses power before the reset, after power is restored, the main control chip 206 will read the "load working" status stored in the status memory unit 208 and drive the relay 207 to keep the contacts closed until the administrator performs a reset operation, ensuring that the protection function is not interrupted before the fault is cleared.

[0062] In summary, the power generation coded wireless fall arrestor control system of this embodiment forms a complete protective closed loop in the high-altitude work platform scenario. Starting from initial standby, after an accidental fall, the energy harvesting layer converts the rope pulling action into electrical energy, which is then used by the signal generation layer to generate a command containing a unique code and wirelessly transmitted. The receiving layer receives and amplifies the signal, and the logic layer completes code matching and command parsing, driving the audible and visual alarm, electromagnetic brake, and central monitoring system of the execution layer to simultaneously activate the protection. Simultaneously, the memory layer stores the state. After fault clearance, it can be manually or remotely reset, and can restore the state from memory after a power outage. The entire process requires no external power supply, exhibits strong anti-interference capabilities, and ensures the safety and continuity of protection during high-altitude operations.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A power generating coded wireless anti-falling safety protector, characterized in that, The protector comprises a self-powered wireless transmitter and a receiving controller (200); The self-powered wireless transmitter is configured to generate electric energy based on the action of the fall protector's rope (101) and generate a wireless signal containing a unique address code and a switch instruction; The receiving controller (200) is configured to access 220V mains and convert it into a stable DC voltage, perform address code matching verification after receiving the wireless signal, respond to the switch instruction according to the verification result and control the external load, and store the load control state at the same time; The self-powered wireless transmitter and the receiving controller (200) establish one-way communication through wireless coded signals, and only when the receiving controller (200) verifies the address code matching, the load control action corresponding to the switch instruction is performed.

2. The power generating coded wireless fall arrest safety protector according to claim 1, wherein, The self-powered wireless transmitter comprises a mechanical energy-electric energy conversion module, an energy management and control module, and a signal generation and transmission module; the mechanical energy-electric energy conversion module is a micro permanent magnet generator (102) connected with the rope (101) winding and unwinding mechanism of the fall protector; the energy management and control module comprises a rectifier circuit (103), a voltage stabilizing capacitor (104) and a controller (105) connected in sequence, the input end of the rectifier circuit (103) is connected with the output end of the micro permanent magnet generator (102), and the output end of the voltage stabilizing capacitor (104) is connected with the power supply end of the controller (105); the signal generation and transmission module comprises an encoder (106) and a wireless transmission module (107), the encoder (106) is connected with the signal output end of the controller (105), and the wireless transmission module (107) is connected with the signal output end of the encoder (106).

3. The power generating coded wireless fall arrest safety protector of claim 2, wherein, The micro permanent magnet generator (102) is a disc type generator or a micro turbine generator, and its rotating shaft is coupled with the winding and unwinding mechanism of the rope (101) through a gear set or a one-way bearing.

4. The power generating coded wireless fall arrest safety protector of claim 2, wherein, The programming logic of the controller (105) is that the self-powered wireless transmitter generates a data packet containing a switch instruction to control the state switching of the external load every time it is triggered.

5. The power generating coded wireless fall arrest safety protector of claim 2, wherein, The voltage stabilizing capacitor (104) is a large-capacity electrolytic capacitor or a super capacitor, and the capacitor capacity is 100μF-1000μF, and the output voltage range is 3.3V-5V; the working frequency band of the wireless transmission module (107) is 433MHz, 2.4GHz or LoRa frequency band.

6. The power generating coded wireless fall arrest safety protector of claim 1, wherein, The receiving controller (200) comprises a power module, a signal receiving and processing module, a logic identification module, an execution and memory module; the power module comprises a step-down unit (201), a rectifier filter unit (202) and a voltage stabilizing unit connected in sequence, and the input end of the step-down unit (201) is connected to 220V mains; the signal receiving and processing module comprises a wireless receiving module (204) and a signal amplifier (205), and the output end of the wireless receiving module (204) is connected to the input end of the signal amplifier (205); the logic identification module is a master control chip (206), and the signal input end of the master control chip (206) is connected to the output end of the signal amplifier (205); the execution and memory module comprises a relay (207) and a state memory unit (208), the coil of the relay (207) is connected to the signal output end of the master control chip (206), and the state memory unit (208) is bidirectionally connected to the master control chip (206).

7. The power generating coded wireless fall arrest safety protector of claim 6, wherein, The state memory unit (208) is an EEPROM or FRAM nonvolatile memory, and is connected to the master control chip (206) through an I2C or SPI communication protocol.

8. The power generating coded wireless fall arrest safety protector of claim 6, wherein, The external load is one or more of an audible and light alarm, an electromagnetic brake, a central monitoring system or an emergency stop circuit, and the contact of the relay (207) is connected to the power supply end or the control end of the load through a wire.

9. The power generating coded wireless fall arrest safety protector of claim 6, wherein, The working frequency band of the wireless receiving module (204) is consistent with the working frequency band of the wireless transmitting module (107).

10. A control system for the power generating coded wireless fall arrest safety protector, the system being suitable for use with the power generating coded wireless fall arrest safety protector of any one of claims 1 to 9, characterised in that, The system comprises: An energy collection layer composed of a falling-prevention device's pull rope (101) and a micro permanent magnet generator (102), the pull rope (101) drives the micro permanent magnet generator (102) to rotate to generate alternating current; A signal generation layer composed of a rectifier circuit (103), a voltage stabilizing capacitor (104), a controller (105), an encoder (106) and a wireless transmitting module (107), the rectifier circuit (103) converts the alternating current into direct current, the voltage stabilizing capacitor (104) stores the direct current and outputs stable voltage, the controller (105) is activated after the voltage meets the standard, drives the encoder (106) to generate a data packet containing a unique address code and a switch instruction, and the wireless transmitting module (107) transmits the data packet; A signal receiving layer composed of a wireless receiving module (204) and a signal amplifier (205), the wireless receiving module (204) receives the data packet, and the signal amplifier (205) amplifies and processes the data packet; A logic processing layer composed of a master control chip (206), the master control chip (206) pre-stores an address code, performs address code matching verification on the amplified data packet, analyzes the switch instruction after the verification is passed, and outputs a switch quantity control signal; The execution memory layer is composed of a relay (207) and a state memory unit (208), the relay (207) coil receives a switch control signal and drives the contact to act, controls the on-off of the external load, the state memory unit (208) stores the current state of the relay (207) contact, after the controller (200) is powered on again, the main control chip (206) reads the state and controls the relay (207) to restore the state.

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