Boarding bridge skill competition referee device

Abstract

The utility model discloses a boarding bridge skill match referee device, which is characterized in that a target shooting device, an acceleration sensor and a laser distance sensor respectively acquire position, jitter, distance and height data of a boarding bridge in the bridge approaching and withdrawing processes, and transmit the data to a PLC (Programmable Logic Controller) through a data interface or a signal line; and after receiving the data of the sensor, the PLC forwards the data to the scoring system through the industrial Ethernet interface. According to multi-sensor cooperative detection, a target shooting device, an acceleration sensor and a laser distance sensor are in linkage with a PLC through physical connection, comprehensive monitoring of the position, shaking and distance of the boarding bridge is achieved, and the integrity of data collection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boarding bridge skill competition judge belongs to the operation technical field of boarding bridge. BACKGROUND

[0002] Boarding bridges, also known as jetty bridges or boarding bridges, are important connecting facilities between airport terminals and aircraft doors, directly affecting the use experience of passengers. They usually use hydraulic or electric systems, which can be flexibly moved and adjusted in position to adapt to aircraft doors of different heights and positions. With the rapid development of the civil aviation industry, boarding bridges, as an important facility connecting airport terminals and aircraft, their operation skills and safety performance are increasingly valued. The development and application of boarding bridge skill competition judges are of great significance to improving airport service quality and ensuring passenger safety. Boarding bridges play a key role in the aviation industry, providing convenient and comfortable boarding and disembarking processes. Previous technical contests mainly reflected the true level of operators by on-site examination of the distance, height, and bridge floor angle of the boarding bridge against the simulator. Scoring and examination require on-site manual measurement by judges, which is time-consuming and labor-intensive. When measuring the gap, it is difficult to place measurement tools on site, resulting in inconsistent measurements by each person, and the shaking characteristics of the bridge cannot be quantified. Only the judges can give subjective scores, which is difficult to observe and score.

[0003] Therefore, we urgently need to design a technical solution that can maximize the advantages of the above design schemes while avoiding their disadvantages as much as possible. INVENTION CONTENTS

[0004] The purpose of the utility model is to provide a boarding bridge skill competition judge.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows: a boarding bridge skill competition judge, comprising:

[0006] The targeter is connected to the PLC controller through a data interface and is used to determine the position of the docking cabin door after the boarding bridge is docked, and transmit the data of the target time, left targeter score, right targeter score, and target number to the PLC controller;

[0007] The acceleration sensor is installed on the bridge body of the boarding bridge and is connected to the PLC controller through a signal line, used to collect bridge body shaking data and transmit the data of smoothness, bridge stopping frequency, floor level, cabin angle, and wheel angle to the PLC controller;

[0008] The laser distance sensor is connected to the PLC controller via a data interface. It is used to measure the distance between the boarding bridge and the cabin door, the height of the bridge, and the lateral offset. It also transmits data on the leading edge distance, bridge height, boarding distance, and boarding height to the PLC controller.

[0009] The monitoring system includes multiple cameras connected to a PLC controller via a proprietary network to collect video data in real time of the boarding bridge's location, operator actions, and the bridge's operating status.

[0010] The PLC controller is connected to the target shooter, accelerometer, laser distance sensor and monitoring system via industrial Ethernet interface. It is used to receive and process data from each sensor and generate results according to rules.

[0011] The scoring system connects to the PLC controller via a communication protocol to receive, store, calculate, and visualize the results.

[0012] The switch interconnects the PLC controller, monitoring system and scoring system through the industrial Ethernet interface, realizing data transmission and control command interaction between the components, and ensuring the independence and security of system operation.

[0013] Working principle:

[0014] The target shooting device, accelerometer, and laser distance sensor respectively collect position, vibration, distance, and height data during the boarding bridge's docking and dismantling processes, and transmit them to the PLC controller via data interface or signal line;

[0015] After receiving the sensor data, the PLC controller forwards the data to the scoring system via the industrial Ethernet interface;

[0016] The monitoring system's cameras collect real-time video of operator actions and bridge posture, and the video data is transmitted to the PLC controller via a dedicated network.

[0017] The scoring system receives the scoring data sent by the PLC controller through a communication protocol and drives the display screen to display the data visually.

[0018] Technical effects:

[0019] Multi-sensor collaborative detection: The target hitter, accelerometer, and laser distance sensor are physically connected to the PLC controller to achieve comprehensive monitoring of the boarding bridge position, vibration, and distance, thereby improving the integrity of data acquisition;

[0020] Improved hardware stability: The proprietary network uses industrial-grade Ethernet protocol and physical isolation design to ensure that data transmission between sensors, controllers and scoring systems is not affected by external interference;

[0021] Enhanced safety: The force feedback structure and reset mechanism of the target shooting device are mechanically linked to prevent damage to the equipment caused by accidental contact or jamming of the telescopic rod;

[0022] The operation process is traceable: the multi-camera layout of the monitoring system, combined with a private network, enables full physical recording of operator actions and bridge operating status.

[0023] Modular structural design: All components (sensors, PLC, scoring system) are connected through standardized interfaces, which facilitates system expansion and maintenance.

[0024] Explanation of the technical solution:

[0025] The innovation of this solution lies in the hardware architecture design, physical connections, and modular integration. All data transmission (such as industrial Ethernet communication and RS485 / RS232 interface protocols), signal processing (such as analog-to-digital conversion of sensor signals), and basic calculations (such as hardware implementation of data normalization and weighted calculations) are completed using existing mature technologies or general-purpose hardware modules. Specifically:

[0026] At the data transmission level: the target shooter and PLC controller are connected via RS485 interface, the accelerometer via signal line, the laser distance sensor via RS232 interface, and the monitoring system via a dedicated network (industrial Ethernet). All of these are industry-standard data interaction methods, and no improvements have been made to the communication protocol or software program.

[0027] At the computational processing level: The PLC controller's logical processing of sensor data (such as triggering reset mechanisms and generating scoring rules) is based on hardware circuits or existing control programs, without involving innovation in software algorithms; the visual display of the scoring system is merely a graphical representation of the data, and its data storage, normalization calculation, and other functions are completed by general-purpose hardware modules (such as databases and processors), without any improvement to the software calculation methods.

[0028] The protected objects of this solution are the physical structure design, installation layout and hardware connection relationship between each hardware component (target shooter, sensor, monitoring system, PLC controller, scoring system, etc.). All software-related functions (if they exist) are conventional applications of existing technology and do not constitute an improvement to the solution.

[0029] Furthermore, the target shooting device includes the following structural components:

[0030] Drive module: It consists of a servo motor, a reduction gear set and a drive shaft. The servo motor drives the drive shaft to reciprocate along the linear guide rail through the reduction gear set.

[0031] Telescopic rod: rigidly connected to the drive shaft, with a flexible contact head at the end. The flexible contact head is made of silicone material and is used to buffer the impact force when touching the target plate.

[0032] Target assembly: includes a metal base and a touch screen covering the surface of the base. The touch screen simulates a ring-shaped target area through software programming. The target area is divided into multiple concentric rings, each ring corresponding to a different score.

[0033] Force feedback structure: integrated inside the telescopic rod, including a pressure sensor and a damper. The pressure sensor detects the resistance value when the telescopic rod touches the target plate or other objects in real time and feeds the signal back to the PLC controller.

[0034] Reset mechanism: Composed of an electromagnetic clutch and a spring. When the PLC controller detects abnormal contact (such as contact with a non-target object) or no contact within a time limit, the electromagnetic clutch disengages, and the spring drives the telescopic rod to automatically retract to the initial position.

[0035] Fixed bracket: Made of aluminum alloy, it is fixed to the front end of the boarding bridge with bolts to support the overall structure of the target shooting device and ensure its alignment with the bridge axis.

[0036] Supplementary explanation of working principle:

[0037] During target firing, the PLC controller sends a command to the servo motor, which drives the transmission shaft to extend the telescopic rod, and the flexible contact head touches the target disk touch screen.

[0038] The touchscreen calculates the score based on the center offset of the touch position and transmits the score to the PLC controller via the RS485 interface;

[0039] If the telescopic rod touches a non-target object (such as the edge of the hatch), the pressure sensor detects that the resistance exceeds the limit, and the PLC immediately controls the servo motor to reverse and retract.

[0040] If the telescopic rod does not touch any object, the PLC will trigger the reset mechanism after a 5-second countdown, releasing the electromagnetic clutch and causing the spring to drive the telescopic rod to reset.

[0041] Technical effects:

[0042] Flexible contact heads reduce mechanical damage to the target plate and hatch;

[0043] The force feedback structure and the reset mechanism work together to ensure the safety of the shooting action;

[0044] The touchscreen target plate enables contactless and accurate scoring, avoiding the problem of easy wear and tear on traditional physical target plates.

[0045] Furthermore, accelerometers are installed on the boarding bridge to collect three-dimensional axial acceleration data in real time. The PLC controller analyzes the amplitude and frequency of bridge vibration to generate a stability score.

[0046] Furthermore, the laser distance sensor includes at least two sets of laser transmitting and receiving modules, which are respectively installed at the front end and both sides of the boarding bridge, for synchronously measuring horizontal distance, vertical height and left and right offset.

[0047] Furthermore, the cameras in the surveillance system include:

[0048] The first camera is installed on the control panel of the boarding bridge to capture operator movements;

[0049] The second camera, installed at the front of the bridge, is used to monitor the position of the docking hatch;

[0050] The third camera, installed on the bridge chassis, is used to monitor the wheel frame attitude.

[0051] Furthermore, the scoring system includes a database module, a data processing module, and a display module; the database module is a storage server, the data processing module is integrated into an FPGA chip, and is used to calculate the scoring data through hardware logic circuits; the display module is an LED screen with a built-in data parsing driver board.

[0052] Beneficial effects: This disclosure presents a multi-sensor collaborative detection device that can improve the integrity of data acquisition. Attached Figure Description

[0053] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0054] Figure 1 This is a schematic diagram of the architecture of this utility model;

[0055] Figure 2 This is a schematic diagram of the refereeing device;

[0056] Figure 3 This is a schematic diagram of the refereeing device;

[0057] Figure 4 This is a schematic diagram of a target shooting device;

[0058] In the diagram: 1. Accelerometer; 2. Target shooter; 3. Laser distance sensor; 4. Monitoring system; 5. Drive rod; 6. Target plate; 7. Transmission mechanism; 8. Force feedback structure; 9. Servo motor; 10. Aircraft door; 11. Fixed bracket. Detailed Implementation

[0059] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings:

[0060] Note: The reference numerals in the attached drawings correspond to the physical components as follows: Figure 2 and Figure 3 As shown, aircraft door 10 is a simulated training target, which will be replaced with a real door structure in the actual competition.

[0061] Explanation of the technical solution:

[0062] The innovation of this solution lies in the hardware architecture design, physical connections, and modular integration. All data transmission (such as industrial Ethernet communication and RS485 / RS232 interface protocols), signal processing (such as analog-to-digital conversion of sensor signals), and basic calculations (such as hardware implementation of data normalization and weighted calculations) are completed using existing mature technologies or general-purpose hardware modules. Specifically:

[0063] At the data transmission level: the target shooter and PLC controller are connected via RS485 interface, the accelerometer via signal line, the laser distance sensor via RS232 interface, and the monitoring system via a dedicated network (industrial Ethernet). All of these are industry-standard data interaction methods, and no improvements have been made to the communication protocol or software program.

[0064] At the computational processing level: The PLC controller's logical processing of sensor data (such as triggering reset mechanisms and generating scoring rules) is based on hardware circuits or existing control programs, without involving innovation in software algorithms; the visual display of the scoring system is merely a graphical representation of the data, and its data storage, normalization calculation, and other functions are completed by general-purpose hardware modules (such as databases and processors), without any improvement to the software calculation methods.

[0065] The protected objects of this solution are the physical structure design, installation layout and hardware connection relationship between each hardware component (target shooter, sensor, monitoring system, PLC controller, scoring system, etc.). All software-related functions (if they exist) are conventional applications of existing technology and do not constitute an improvement to the solution.

[0066] This embodiment proposes a boarding bridge skills competition referee device, including:

[0067] Target shooter 2 is connected to the PLC controller via a data interface. It is used to determine the position of the docking door after the boarding bridge docks, and to transmit data such as the shooting time, the score of the left target shooter, the score of the right target shooter, and the number of shots to the PLC controller.

[0068] Accelerometer 1 is installed on the boarding bridge and connected to the PLC controller via a signal line. It is used to collect bridge vibration data and transmit data on stability, number of bridge stops, floor level, docking cabin angle and wheel frame angle to the PLC controller.

[0069] The laser distance sensor 3 is connected to the PLC controller via a data interface. It is used to measure the distance between the boarding bridge and the cabin door, the height of the bridge, and the left and right offset, and transmits data on the leading edge distance, bridge height, boarding distance, and boarding height to the PLC controller.

[0070] The monitoring system 4 includes multiple cameras connected to the PLC controller via a dedicated network to collect video data in real time of the boarding bridge position, operator actions, and bridge operating status.

[0071] The PLC controller is connected to the target 2, acceleration sensor 1, laser distance sensor 3 and monitoring system 4 via industrial Ethernet interface. It is used to receive and process the data from each sensor and generate results according to rules.

[0072] The scoring system connects to the PLC controller via a communication protocol to receive, store, calculate, and visualize the results.

[0073] A dedicated network interconnects the PLC controller, monitoring system 4, and scoring system via an industrial Ethernet interface, enabling data transmission and control command interaction between the components and ensuring the independence and security of system operation.

[0074] Working principle:

[0075] The target shooter 2, the accelerometer 1 and the laser distance sensor respectively collect the position, vibration, distance and height data of the boarding bridge during the docking and dismantling process, and transmit them to the PLC controller through the data interface or signal line.

[0076] After receiving the sensor data, the PLC controller forwards the data to the scoring system via the industrial Ethernet interface;

[0077] The cameras in monitoring system 4 collect real-time video of operator actions and bridge posture, and the video data is transmitted to the PLC controller via a dedicated network.

[0078] The scoring system receives the scoring data sent by the PLC controller through a communication protocol and drives the display screen to display the data visually.

[0079] Technical effects:

[0080] Multi-sensor collaborative detection: The target shooter 2, accelerometer 1, and laser distance sensor are physically connected to the PLC controller to achieve comprehensive monitoring of the boarding bridge position, vibration, and distance, thereby improving the integrity of data acquisition;

[0081] Improved hardware stability: The proprietary network uses industrial-grade Ethernet protocol and physical isolation design to ensure that data transmission between sensors, controllers and scoring systems is not affected by external interference;

[0082] Enhanced safety: The force feedback structure and reset mechanism of the target hitter 2 are mechanically linked to prevent damage to the equipment caused by accidental contact or jamming of the telescopic rod;

[0083] The operation process is traceable: the multi-camera layout of the monitoring system 4, combined with a private network, enables full physical recording of operator actions and bridge operating status.

[0084] Modular structural design: All components (sensors, PLC, scoring system) are connected through standardized interfaces, which facilitates system expansion and maintenance.

[0085] The target shooting device 2 includes the following structural components:

[0086] Drive module: It consists of servo motor 9, reduction gear set and drive shaft. Servo motor 9 drives drive shaft to reciprocate along linear guide rail through reduction gear set;

[0087] Telescopic rod: rigidly connected to the drive shaft, with a flexible contact head at the end. The flexible contact head is made of silicone material and is used to buffer the impact force when touching the target plate 6.

[0088] The target disk consists of six components: a metal base and a touch screen covering the surface of the base. The touch screen simulates a ring-shaped target area through software programming. The target area is divided into multiple concentric rings, each ring corresponding to a different score.

[0089] Force feedback structure 8: Integrated inside the telescopic rod, including a pressure sensor and a damper. The pressure sensor detects the resistance value when the telescopic rod touches the target plate 6 or other objects in real time and feeds the signal back to the PLC controller.

[0090] Reset mechanism: Composed of an electromagnetic clutch and a spring. When the PLC controller detects an abnormal contact (such as contact with a non-target disk 6 object) or when no contact is detected within a time limit, the electromagnetic clutch disengages and the spring drives the telescopic rod to automatically retract to the initial position.

[0091] Fixed bracket 11: Made of aluminum alloy, it is fixed to the front end of the boarding bridge with bolts to support the overall structure of the target shooting device 2 and ensure that it is aligned with the bridge axis.

[0092] Supplementary explanation of working principle:

[0093] During target firing, the PLC controller sends a command to the servo motor 9, which drives the transmission shaft to extend the telescopic rod, and the flexible contact head touches the target disk 6 touch screen.

[0094] The touchscreen calculates the score based on the center offset of the touch position and transmits the score to the PLC controller via the RS485 interface;

[0095] If the telescopic rod touches an object other than the target plate 6 (such as the edge of the hatch), the pressure sensor detects that the resistance exceeds the limit, and the PLC immediately controls the servo motor 9 to reverse and retract.

[0096] If the telescopic rod does not touch any object, the PLC will trigger the reset mechanism after a 5-second countdown, releasing the electromagnetic clutch and causing the spring to drive the telescopic rod to reset.

[0097] Accelerometer 1 is installed on the boarding bridge to collect three-dimensional axial acceleration data in real time. The PLC controller analyzes the amplitude and frequency of bridge vibration and generates a stability score.

[0098] The laser distance sensor includes at least two sets of laser transmitting and receiving modules, which are installed at the front end and both sides of the boarding bridge, respectively, for synchronously measuring horizontal distance, vertical height and left and right offset.

[0099] The cameras in monitoring system 4 include:

[0100] The first camera is installed on the control panel of the boarding bridge to capture operator movements;

[0101] The second camera, installed at the front of the bridge, is used to monitor the position of the docking hatch;

[0102] The third camera, installed on the bridge chassis, is used to monitor the attitude of the four-wheel frame.

[0103] The scoring system includes a database module, a data processing module, and a display module;

[0104] The database module is used to store historical rating data and operator information;

[0105] The data processing module is used to clean, normalize, and perform weighted calculations on the scoring data;

[0106] The display module shows the scoring results, rankings, and operation trajectory in real time through charts.

[0107] Technical effects:

[0108] The flexible contact head reduces mechanical damage to the target plate 6 and the hatch;

[0109] The force feedback structure and the reset mechanism work together to ensure the safety of the shooting action;

[0110] The touchscreen target plate 6 enables contactless and accurate scoring, avoiding the problem of easy wear and tear of the traditional physical target plate 6.

[0111] The following is a specific implementation example:

[0112] I. Background of the Implementation Examples

[0113] In a boarding bridge operator skills competition held at an airport, this boarding bridge skills competition judging device was used to accurately and comprehensively evaluate the contestants' operation of the boarding bridges. This judging device integrates multiple sensors and control systems to ensure the objectivity and fairness of the competition scoring.

[0114] II. Implementation of the Referee System Components

[0115] (a) Target shooting device 2

[0116] Hardware Selection and Installation: The drive module uses a 200W servo motor (model 9) paired with a 1:10 reduction gear set. The drive shaft is a 15mm diameter high-precision linear shaft, mounted on the front end of the boarding bridge with a linear guide rail. The telescopic rod is made of high-strength aluminum alloy, 30cm in length, with a flexible contact head at the end made of silicone material with a Shore A hardness of 20A. The metal base of the target plate (model 6) is made of 304 stainless steel. The touchscreen is a 10-inch capacitive touchscreen with a resolution of 1280×800. Software programming divides the target area into 5 concentric rings, with the innermost ring having a score of 100 points, decreasing by 20 points outwards. The pressure sensor in the force feedback mechanism has a range of 0-50N and an accuracy of 0.1N. The electromagnetic clutch of the reset mechanism is model MCC-24V, and the spring is a compression spring with an elastic coefficient of 5N / mm. The fixed bracket 11 is made of 5mm thick aluminum alloy plate and is fixed to the front end of the boarding bridge with M8 bolts to ensure that its deviation from the bridge axis does not exceed ±0.5°.

[0117] Workflow: During the competition, after the contestant completes the boarding bridge maneuver, the PLC controller sends an extension command to servo motor 9. Servo motor 9 drives the transmission shaft through a reduction gear set, causing the telescopic rod to extend at a speed of 0.5 m / s. When the flexible contact head touches the target plate 6 touchscreen, the touchscreen calculates the score based on the center offset of the touch position and transmits the score to the PLC controller via the RS485 interface. If the telescopic rod touches an object other than the target plate 6 (such as the edge of the hatch), and the pressure sensor detects resistance exceeding 15N, the PLC immediately controls servo motor 9 to reverse and retract. If the telescopic rod does not touch any object within 5 seconds, the PLC triggers the reset mechanism, the electromagnetic clutch releases, and the spring drives the telescopic rod to return to its initial position.

[0118] (ii) Accelerometer 1

[0119] A three-axis accelerometer, model HWT605, with a range of ±16g and a resolution of 13 bits, was selected and installed in the middle of the boarding bridge. It was secured using a dedicated clamp and M4 bolts, ensuring accurate alignment of the sensor's sensitive axis with the three axes of the bridge. The sensor connects to a PLC controller via a CAN bus interface to acquire three-dimensional axial acceleration data in real time at a sampling frequency of 100Hz. The PLC controller analyzes and processes the acquired data according to a preset algorithm, calculating the amplitude and frequency of bridge vibration to generate a stability score. The maximum score is 100 points; the greater the vibration amplitude and the higher the frequency, the lower the score.

[0120] (iii) Laser distance sensor

[0121] Two sets of LDM4x laser transmitter and receiver modules were used. One set was installed at the center of the front end of the boarding bridge to measure the horizontal distance and vertical height between the boarding bridge and the cabin door; the other set was installed symmetrically on both sides of the boarding bridge to measure the lateral offset. The laser distance sensor had a measurement range of 0.1-100m and an accuracy of ±1mm, and was connected to the PLC controller via an RS232 data interface. During the competition, the laser distance sensor collected data at a frequency of 10 times per second and transmitted the measured leading-edge distance score, bridge height, boarding distance, and boarding height data to the PLC controller. The leading-edge distance score was based on whether the horizontal distance between the boarding bridge and the cabin door was within the specified range (e.g., ±10cm). A perfect score of 20 points was awarded if the distance was within the range, and 2 points were deducted for every 1cm deviation.

[0122] (iv) Monitoring System 4

[0123] Camera Selection and Installation: The first camera is a 4-megapixel network camera (model DS-2CD3146FWD-I), installed 30cm above the boarding bridge's control panel, with the lens angled downwards at 30° to ensure clear capture of operator movements. The second camera is the same model, installed at the front of the bridge, with the lens directly facing the docking door, to monitor the door's position and the docking status between the boarding bridge and the door. The third camera is a 4-megapixel network camera (model DS-2CD3346P1-I), installed on the bridge chassis, with the lens angled upwards at 45° to monitor the attitude of the four-wheel frame.

[0124] Data transmission: The three cameras are connected to a dedicated PoE switch via a private network with a bandwidth of 100Mbps to ensure stable transmission of video data. The cameras capture video data at a frame rate of 25fps, encoded in H.264 format, and transmit it to the PLC controller via the private network.

[0125] (v) PLC controller

[0126] A Siemens S7-1200 series PLC, model CPU 1214C DC / DC / DC, was selected, featuring 14 digital inputs, 10 digital outputs, 2 analog inputs, and 2 analog outputs. It connects to the target shooting device 2, accelerometer 1, laser distance sensor, and monitoring system 4 via an industrial Ethernet interface (RJ45) to receive and process data from each sensor. The PLC controller has a built-in scoring rule program that processes the collected data according to a preset algorithm, generates scoring results, and transmits the results to the scoring system via the industrial Ethernet interface.

[0127] (vi) Scoring System

[0128] System Composition: The database module uses a MySQL database, installed on a dedicated server, to store historical scoring data and operator information. The server is configured with an Intel Xeon E5-2620 v4 processor, 32GB of memory, and a 1TB hard drive. The data processing module is integrated into an FPGA chip, used to perform weighted calculations of the scoring data through hardware logic circuits. The processing logic is written in Python, calculating the final score based on the importance of different scoring items (e.g., target shooting score accounts for 40%, stability score accounts for 30%, and distance score accounts for 30%). The display module is a 55-inch LED screen with a built-in data parsing driver board.

[0129] Workflow: The scoring system connects to the PLC controller via a communication protocol (Modbus TCP) and receives scoring data sent by the PLC controller. The data processing module processes the received data, stores the results in the database module, and drives the display module for visualization. During the competition, the display module updates the scoring results and rankings in real time for easy viewing by judges and spectators.

[0130] (vii) Private Cloud

[0131] The system utilizes an industrial-grade Ethernet switch, model H3C S5130, with 16 RJ45 ports supporting standard protocols such as IEEE 802.3, IEEE 802.3u, and IEEE 802.3x. The PLC controller, monitoring system, and scoring system are interconnected via industrial Ethernet interfaces. The network employs a physical isolation design to ensure data transmission between components is unaffected by external interference. The network topology uses a star connection, with each device connected to the switch via CAT6 network cables. The network transmission rate is 100Mbps.

[0132] III. Implementation Results

[0133] Through the aforementioned implementation, this boarding bridge skills competition judging system achieved comprehensive and accurate evaluation of the contestants' operation of the boarding bridge. In actual competitions, the judging system can quickly and accurately collect and process various data, generating objective and fair scoring results. Multi-sensor collaboration ensures comprehensive monitoring of key indicators such as boarding bridge position, vibration, and distance; a dedicated network guarantees the stability and security of data transmission; the monitoring system enables full traceability of the operation process; and the visual display of the scoring system provides judges and spectators with intuitive competition information. The application of this judging system effectively improved the professionalism and fairness of the boarding bridge skills competition, gaining unanimous recognition from contestants and judges.

[0134] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any transformations or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A boarding bridge skills competition referee device, characterized in that, include: The target shooting device is connected to the PLC controller via a data interface. It is used to determine the position of the docking door after the boarding bridge docks, and to transmit data such as the shooting time, the score of the left target shooting device, the score of the right target shooting device, and the number of shots to the PLC controller. An accelerometer is installed on the boarding bridge and connected to a PLC controller via a signal line. It is used to collect bridge vibration data and transmit data on stability, number of bridge stops, floor level, docking bay angle, and wheel frame angle to the PLC controller. The laser distance sensor is connected to the PLC controller via a data interface. It is used to measure the distance between the boarding bridge and the cabin door, the height of the bridge, and the lateral offset. It also transmits data on the leading edge distance, bridge height, boarding distance, and boarding height to the PLC controller. The monitoring system includes multiple cameras connected to a PLC controller via a proprietary network to collect video data in real time of the boarding bridge's location, operator actions, and the bridge's operating status. The PLC controller is connected to the target shooter, accelerometer, laser distance sensor and monitoring system via industrial Ethernet interface. It is used to receive and process data from each sensor and generate results according to rules. The scoring system connects to the PLC controller via a communication protocol to receive, store, calculate, and visualize the results. Industrial Ethernet interface: The PLC controller, monitoring system and scoring system are interconnected through the industrial Ethernet interface to realize data transmission and control command interaction between the components.

2. The boarding bridge skills competition referee device according to claim 1, characterized in that, The target shooting device includes the following structural components: Drive module: It consists of a servo motor, a reduction gear set and a drive shaft. The servo motor drives the drive shaft to reciprocate along the linear guide rail through the reduction gear set. Telescopic rod: rigidly connected to the drive shaft, with a flexible contact head at the end. The flexible contact head is made of silicone material and is used to buffer the impact force when touching the target plate. Target assembly: includes a metal base and a touch screen covering the surface of the base. The touch screen simulates a ring-shaped target area through software programming. The target area is divided into multiple concentric rings, each ring corresponding to a different score. Force feedback structure: integrated inside the telescopic rod, including a pressure sensor and a damper. The pressure sensor detects the resistance value when the telescopic rod touches the target plate or other objects in real time and feeds the signal back to the PLC controller. Reset mechanism: Composed of an electromagnetic clutch and a spring. When the PLC controller detects that a non-target object has been touched or that no object has been touched within a time limit, the electromagnetic clutch is disengaged, and the spring drives the telescopic rod to automatically retract to the initial position. Fixed bracket: Made of aluminum alloy, it is fixed to the front end of the boarding bridge with bolts to support the overall structure of the target shooting device and ensure its alignment with the bridge axis.

3. The boarding bridge skills competition referee device according to claim 1, characterized in that, The acceleration sensor is installed on the boarding bridge to collect three-dimensional axial acceleration data in real time. The PLC controller analyzes the amplitude and frequency of bridge vibration and generates a stability score.

4. The boarding bridge skills competition referee device according to claim 1, characterized in that, The laser distance sensor includes at least two sets of laser transmitting and receiving modules, which are respectively installed at the front end and both sides of the boarding bridge, for synchronously measuring horizontal distance, vertical height and left and right offset.

5. The boarding bridge skills competition referee device according to claim 1, characterized in that, The surveillance system includes the following cameras: The first camera is installed on the control panel of the boarding bridge to capture operator movements; The second camera, installed at the front of the bridge, is used to monitor the position of the docking hatch; The third camera, installed on the bridge chassis, is used to monitor the wheel frame attitude.

6. The boarding bridge skills competition referee device according to claim 1, characterized in that, The scoring system includes a database module, a data processing module, and a display module; the database module is a storage server, the data processing module is integrated into an FPGA chip, and is used to calculate the scoring data through hardware logic circuits; the display module is an LED screen with a built-in data parsing driver board.

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