270 results about "Terminal point" patented technology

The invention discloses a surface mine transportation real-time intelligent scheduling method and system based on multi-objective optimization. The method comprises the steps that S1, an initial data loading module initializes the system; s2, the algorithm module verifies the vehicle state after receiving the scheduling request; s3, executing a path generation strategy according to states, wherein a normal vehicle generates all feasible routes based on the global path network; when a user appoints a starting point and a terminal point, a point-to-point optimal route is intelligently generated; s4, performing dynamic optimization scheduling based on the multi-source data; optimal task allocation is solved through a multi-objective optimization model, and a vehicle and route mapping relation is output; and S5, a scheduling result is issued to the vehicle-mounted terminal through the service layer, and a terminal interface displays a recommended route and operation guidance. According to the invention, a dynamic event-driven mechanism and a multi-source data collaborative optimization intelligent scheduling framework are fused, so that efficient distribution of vehicle tasks, real-time generation of paths and quick response to abnormal conditions are realized.

The invention provides a robot-based blade interior autonomous crawling sensing method and system, and the method comprises the steps: carrying a multi-sensor array on a robot, the multi-sensor array comprises a binocular fisheye camera array and a ToF sensor array, controlling the robot to start from a path travel starting point, obtaining a panoramic depth image based on the multi-sensor array, and transmitting the panoramic depth image to the robot; recognizing an obstacle based on the panoramic depth image, constructing a three-dimensional point cloud map based on the obstacle, avoiding the obstacle based on the three-dimensional point cloud map, generating a feasible path in the blade, and enabling the robot to move based on the feasible path until the robot reaches a path travel terminal point or a minimum space in which the robot cannot pass. Autonomous crawling perception of the robot in the blade can be ensured, movement of the robot in the blade is ensured, and detection is realized.

The invention discloses a Text-to-SQL (Structured Query Language) generation method and device, a medium and a product, and relates to the field of geographic information technology application, the method comprises the following steps: analyzing a natural language query text input by a user to obtain a source field set and a target field set; determining corresponding nodes of each field in the source field set and the target field set in the river-lake long-system database mode knowledge graph to obtain a source node set and a target node set; the nodes in the source node set serve as starting points, the nodes in the target node set serve as terminal points, the knowledge graph is processed through the shortest path algorithm, and a path set is obtained; decomposing the natural language query text into a plurality of sub-problems by adopting a large language model and a thinking chain technology, and obtaining a dependency relationship among the sub-problems; according to the dependency relationship and the target field set, a public table expression is obtained, and then the SQL statement is obtained, and the accuracy of database query language generation under the river and lake long-term system scene can be improved.

The invention relates to the technical field of unmanned aerial vehicle navigation, and relates to an unmanned aerial vehicle inspection path planning method, system and device and a storage medium. The unmanned aerial vehicle inspection path planning method comprises the following steps: acquiring a digital elevation model and a digital surface model of a plateau forest region and laser point cloud data of the plateau forest region; determining a three-dimensional voxel space of the plateau forest region based on the digital elevation model, the digital surface model and the laser point cloud data, performing reachability judgment on the three-dimensional voxel space based on the vertical safety margin, and determining a reachable region of the unmanned aerial vehicle; carrying out three-dimensional path search from a starting point to a terminal point by using an improved algorithm in an unmanned aerial vehicle reachable area; and smoothing the searched three-dimensional path, and applying a maximum turning radius constraint and a maximum climbing rate constraint to generate a final three-dimensional track. According to the invention, the safety and the performability of route planning of the unmanned aerial vehicle can be improved.

The invention discloses an airship type unmanned aerial vehicle inspection system and inspection method, and belongs to the field of inspection unmanned aerial vehicles. The system comprises a laser radar, an image acquisition device, an airship capsule filled with helium, a standby safety airbag, a communication module and a ground control center, in the method, the ground control center sets an inspection path and issues the inspection path, and the unmanned aerial vehicle flies according to a preset path. During fault detection, the high-definition camera collects images to recognize line cracks and broken strands, the thermal infrared imager monitors the joint temperature, the gas sensor detects abnormal gas, and multi-source data fusion assists in defect positioning. The routing inspection takes a starting point-terminal point connecting line of a power transmission line as a reference, identifies main obstacles and surrounding nodes to perform global planning, performs key routing inspection on a risk area in combination with historical data, and initializes and guides a flight direction through a Q value to reduce invalid exploration. The four-rotor unmanned aerial vehicle solves the problems of short flight time and poor stability of a four-rotor unmanned aerial vehicle, improves the inspection stability and cruising ability, and improves the inspection efficiency of a power transmission line and the reliability of a power system.

The invention belongs to the technical field of optimal planning and site selection of electric vehicle charging stations, and particularly relates to an electric vehicle charging station planning and site selection method, which comprises the following steps: S1, constructing an uncertainty set containing road and node traffic capacity loss; constructing a vehicle starting point-terminal point travel scene set in combination with the historical travel data of the vehicle; s2, constructing a network equalization model considering the arrival time fairness of the electric vehicle users according to the passing time cost difference of the electric vehicle users on the traffic road when the electric vehicle users go to the charging station from the starting point so as to solve regional traffic flow distribution; and S3, based on the traffic flow distribution in the S2, constructing a charging station planning model considering the user arrival time fairness, and determining an optimal site selection and capacity configuration scheme of the charging station. According to the method, the time fairness of the electric vehicle user arriving at the charging station can be ensured while the traffic uncertainty of the traffic network road section is effectively dealt with, and the method has a relatively good market application prospect.

The invention discloses a multi-layer potential field and dynamic target generation-based unmanned ship formation control method and system. The method comprises the steps of judging whether an unmanned ship formation reaches a target point or not; if the terminal point is not reached, switching to the next target point; judging whether the distance between the target point and the end point exceeds the radius of the global potential field, and if so, activating a dynamic target generation mechanism to generate a temporary target point; updating the current target point; monitoring an environment obstacle state; the acting force of the formation gravitational field, the acting force of the inter-boat repulsion field and the acting force of the obstacle repulsion field are synthesized; and obtaining control input according to the synthetic acting force, updating the formation position and environment sensing data in real time until the terminal point is reached, and ending the navigation task. According to the method, the formation collaborative operation efficiency is improved, and a brand new path is developed for reliable application of the unmanned ship formation in a complex environment by radically solving two major problems of potential field imbalance and collaborative interference.

The invention provides a path planning method, device and equipment and a readable storage medium, and the method is applied to a mobile device, and comprises the steps: obtaining a target map, dividing the target map into a plurality of sub-regions, and enabling the plurality of sub-regions to comprise a starting point region and an ending point region; determining an access point in the starting point area, and determining an outgoing point in the ending point area; a hybrid obstacle avoidance algorithm is utilized to determine an access path between the starting point and the access point and determine an outgoing path between the outgoing point and the terminal point, and the hybrid obstacle avoidance algorithm is a path planning algorithm combining a heuristic search algorithm and vehicle dynamics constraints; determining a main road path between the access point and the outgoing point by using a shortest path search algorithm; and determining a target path of the movable device based on the access path, the main road path and the access-out path. The driving requirements of the movable device can be met while the driving path is optimized.

The invention provides a path planning method and device, electronic equipment and a readable storage medium, and is suitable for the technical field of path planning. The method comprises the steps of obtaining a task set; wherein the task set comprises a plurality of tasks and attribute information of each task, and the attribute information comprises starting point information and terminal point information; combining the tasks based on the end point information of each task, and determining at least one group of end point clustering groups; wherein the terminal stations corresponding to the terminal information of each task in the terminal clustering group are the same; aiming at each end point clustering group, based on the attribute information of each task in the end point clustering group, determining each target station through which the automatic guided vehicle needs to pass; and based on each target station, determining path planning information of the automated guided vehicle. According to the embodiment of the invention, the method achieves the effective merging of tasks, enables the merging rate of transportation batches to be remarkably improved, effectively reduces the no-load round-trip conditions of an automatic guided vehicle, and improves the utilization rate of the automatic guided vehicle.

The invention discloses a blind person navigation and positioning system and method, and relates to the technical field of intelligent assistance and positioning navigation, and the system comprises a positioning service unit and a navigation service unit. In the positioning service unit, an IMU module collects three-axis acceleration and three-axis angular velocity information of a user in real time and calculates motion data of the user; the GNSS module receives satellite signals in real time and calculates position data of a user; and the data processing module carries out positioning according to the data of the IMU module and the GNSS module, and sends the positioning result of the user to the navigation service unit. In the navigation service unit, a demand acquisition module is used for user interaction and acquiring terminal point information of a user; the path planning module generates an optimal path according to the starting point information and the terminal point information of the user; and the navigation guiding module guides the user to advance along the planned path through voice prompt. And more accurate navigation information is provided for the blind. According to the invention, real-time positioning and navigation services are provided for the blind, and the travel safety and convenience of the blind are enhanced.

The embodiment of the invention discloses an equipment pointing control method and system. The method comprises the following steps: in response to a gesture action of a user, sending a UWB signal to each UWB anchor point, and receiving signal arrival time recorded by each UWB anchor point; determining target position information of the control terminal in the three-dimensional space based on the signal arrival time and a preset positioning algorithm; determining signal parameter information from the target equipment to the control terminal when the control terminal points to the target equipment, and locking the pointed target equipment based on the target position information and the signal parameter information; and determining gesture motion track information based on the acquired acceleration data, and matching a control instruction based on the gesture motion track information and a preset track template so as to send a corresponding control instruction to the target equipment. According to the technical scheme, the pointing accuracy and the pointing success rate of the equipment can be improved, and centimeter-level precision non-inductive control is achieved.

The embodiment of the invention discloses a three-dimensional modeling method, device and equipment for a gradient pipeline and a storage medium, and the method comprises the steps: obtaining a starting point three-dimensional coordinate, an end point three-dimensional coordinate, a pipe fitting accessory identifier and a pipeline accessory distance value of the gradient pipeline, and generating a unit direction vector according to the starting point three-dimensional coordinate and the end point three-dimensional coordinate; pipeline accessory positioning processing is carried out based on the unit direction vector, the pipeline accessory distance value and the starting point three-dimensional coordinate, and accessory positioning coordinates are determined according to a processing result; performing pipeline accessory orientation processing according to the unit direction vector, the pipe accessory identifier and a reference direction in a preset world coordinate system, and determining an accessory orientation vector according to a processing result; and inputting the starting point three-dimensional coordinate, the terminal point three-dimensional coordinate, the accessory orientation vector, the accessory positioning coordinate and the pipe fitting accessory identifier into a preset three-dimensional model to obtain a three-dimensional model diagram of the gradient pipeline. According to the scheme, the generation efficiency of the gradient pipeline three-dimensional model diagram can be greatly improved.

The invention discloses an unmanned surface vehicle robust track tracking method based on track curvature adaptive segmentation control, and relates to the technical field of unmanned surface vehicle autonomous navigation control, and the method comprises the steps: calculating the track curvature of a current leg in real time, and dividing a control section based on a preset threshold; executing a corresponding control strategy according to a control section, dynamically adjusting a proportionality coefficient, an integral coefficient and a differential coefficient by adopting fuzzy PID, and generating a steering lag prediction compensation amount based on a planning energy optimal speed; and steering compensation is carried out based on the steering lag prediction compensation amount, so that steering lag is reduced. And finally, judging whether the terminal point of the current flight segment is reached or not so as to obtain an optimized flight path tracking result. Through a curvature-driven three-section control strategy, a dynamic foresight distance dual constraint and an energy consumption optimization mechanism, the problems of tracking drift, control switching oscillation and energy waste of a traditional method in a sharp turn leg are solved, and the tracking precision and the system robustness under a complex track are remarkably improved.

The invention provides a marine environment underwater robot path planning method and system, and the method comprises the steps: building a high-fidelity marine environment simulation platform based on ROS Melodic, Gazebo11 and UUV Simulator, searching a feasible path of an underwater robot from a starting point to a target terminal point in the high-fidelity marine environment simulation platform through a global path planning module by employing an improved algorithm, and carrying out the path planning of the underwater robot in the high-fidelity marine environment simulation platform, the method comprises the following steps: acquiring a global reference path, acquiring a local optimal path by a local path planning module through a multi-stage processing flow under the guidance of the global reference path, and acquiring a global optimal path through a hierarchical intelligent cooperation mechanism under a global-local cooperation framework. By constructing a high-fidelity environment simulation platform, integrating a spatial sampling path planning algorithm and establishing a multi-dimensional verification system, accurate evaluation of algorithm performance is realized, dependence of path planning on physical experiments is eliminated, and the research and development period is shortened.

The invention provides an online car-hailing order dispatching method and device based on navigation cost and on-the-way completeness constraint. The method comprises the following steps: calculating a reference navigation distance and reference estimated driving time from a current position to an on-road terminal point based on navigation parameters; for each candidate order, calling a navigation service to calculate a navigation distance and estimated driving time of a preset path; obtaining an index for order sending judgment based on a calculation result; performing comprehensive scoring and sorting on the detour ratio, the detour time ratio, the on-the-way distance completion degree and the on-the-way time completion degree of the candidate orders passing the verification according to a preset weight, and determining a target order; and issuing the target order to a corresponding driver terminal to trigger an order receiving process. According to the method and the device, accurate determination of the on-the-way performance based on the navigation cost, quantitative constraint of the on-the-way performance return stroke full-link increment cost and the on-the-way completion degree, and thresholding screening and priority ranking according to the order receiving mode can be realized, so that invalid driving is reduced, and the order sending efficiency is improved.

The invention discloses a weak current adaptive wiring path planning method and device and a storage medium, and relates to the technical field of data processing. The method comprises the following steps: constructing a wiring space world coordinate system; constructing a first weak current wiring limitation area coordinate; defining coordinates of a second weak current wiring limitation area through the user side; a union set is taken, and coordinates of the weak current wiring limitation area are obtained; obtaining a weak current wiring starting point coordinate and a weak current wiring terminal point coordinate, and carrying out wiring optimization based on the weak current wiring limiting area coordinate to obtain a weak current wiring scheme; and performing virtual layout on the weak current wiring scheme in the wiring three-dimensional space model to obtain a wiring three-dimensional space updating model, and sending the wiring three-dimensional space updating model to a user side for visual display. The technical problem that in the prior art, the wiring planning efficiency is low due to the fact that the weak current wiring path planning process is prone to being interfered by strong current wiring is solved, wiring optimization is conducted by constructing the weak current wiring limiting area and combining the three-dimensional space model, and the technical effect of improving the wiring planning efficiency is achieved.

The invention discloses a two-way A star algorithm and dynamic window method fused path planning method and system. The method comprises the following steps: calculating a global path from a starting point to an end point by using a two-way A star algorithm; traversing the global path to remove redundant nodes in the global path; finding an initial current node in the global path from which the redundant nodes are removed; judging whether the current node is an end point, if the current node is the end point, fusing local paths among the nodes to obtain a final planned path from the starting point to the end point, otherwise, determining a next current node according to the current node and the global path; and calculating a local path from the current node to the next current node by using a dynamic window method, and returning the next current node as a new current node to continue iteration. The invention aims to solve the problems of calculation efficiency and path smoothness of the existing path planning method, improve the navigation capability in a dynamic environment, and improve the safety, movement efficiency and real-time obstacle avoidance capability of the robot.

The application discloses a road network site selection method based on a shortest path and path enumeration, first reads a real road network data set, extracts vertex and edge data therein, and establishes an undirected and weighted graph according to the extracted vertex and edge data; the undirected and weighted graph is read and processed by using a function readGraph() to obtain a starting point set; the undirected and weighted graph is read and processed by using the function readGraph() to obtain a terminal point set; the starting point set and the terminal point set are processed by using a depth-first search DFS method to obtain all paths between all starting points and all terminal points and within a preset path threshold d range; all paths between each starting point and each terminal point and within the preset path threshold d range are processed in descending order to obtain a maximum path quantity from each starting point to all terminal points and corresponding terminal points. The application can solve the technical problem of low query efficiency of the existing road network site selection method based on a Dijkstra algorithm.

The invention provides a routing extension method and a non-transitory computer readable medium. The invention provides a routing extension method, which comprises the following steps that: a processor obtains a plurality of three-dimensional data related to a three-dimensional environment, the three-dimensional data are used for representing available space and routing in the three-dimensional environment, and the processor repeatedly executes an extension program until the routing reaches a preset terminal point. The extension program includes performing a convolution operation to convert a plurality of three-dimensional data into a feature map, performing a reinforcement learning algorithm according to the feature map and a plurality of scores to output an extension direction of a trace avoiding an obstacle, and updating a portion belonging to an available space and a portion belonging to the trace in the three-dimensional data according to the extension direction, and calculating one of the plurality of scores according to the extension direction. According to the routing extension method provided by the invention, careful and repeated routing layout tasks can be automatically executed, so that time and resources are saved.

The invention discloses a robot control method and device, a robot and a storage medium, and relates to the technical field of intelligent robots. The method comprises the steps that a semantic map in a preset area is determined, and a first planned path is generated according to a preset terminal point of a current robot; if it is determined that an intersection point exists between the first planned path and a target obstacle according to the semantic map and the first planned path is not perpendicular to the target obstacle, a virtual wall is generated in the semantic map; and generating a second planned path perpendicular to the target obstacle by taking the current robot not in contact with the virtual wall as a target, and controlling the current robot to move according to the second planned path in the semantic map. According to the technical scheme, the path perpendicular to the target obstacle is generated by setting the virtual wall, so that the current robot can vertically pass through the target obstacle, and the problem that the robot is stuck or rolls over is solved.

The avionics computer, in particular a flight management system, comprises a processing unit configured to compare a first altitude with what is referred to as a threshold altitude, the first altitude corresponding to the altitude of a missed approach point relative to the runway, the threshold altitude being equal to the sum of a second altitude corresponding to the altitude of the runway and of a threshold crossing height, and to determine a terminal point that has an altitude equal to the threshold altitude and that forms, with the position of the missed approach point, a straight line segment that has a slope equal to the slope of the straight line segment defined by the missed approach point and a final approach fix, said terminal point being capable of being used as anchor point, the avionics computer thus having improved properties especially in terms of availability and robustness.

The present disclosure provides a positioning method, device, electronic equipment and computer readable storage medium, relating to the technical field of surgical robots, which comprises: acquiring a current image feature of a surgical tool at a current time, calculating an expected image feature of the surgical tool at a terminal point of a navigation path of the surgical tool under a world coordinate system and a navigation path coordinate system established by the terminal point, calculating a pose control amount of a surgical robot at a next time based on the current image feature, adjusting the pose of the surgical robot through the pose control amount at the next time, acquiring a next-time image feature of the surgical tool, and determining that the positioning of the surgical tool is completed when an actual image feature error between the next-time image feature and the expected image feature is less than a preset error threshold, otherwise, recalculating the expected image feature until the actual image feature error is less than the preset error threshold. The present disclosure improves the positioning speed of the surgical robot.

The invention discloses an indoor and outdoor integrated navigation path planning method and system for parking space level positioning, and relates to the related technical field of navigation path planning, and the method comprises the steps: obtaining multi-source positioning data of a user terminal; carrying out integrated fusion processing, and constructing an indoor and outdoor map topological relation; target parking space state information is introduced to serve as a terminal point, the real-time three-dimensional position serves as a starting point for navigation, and a plurality of cross-domain navigation initial paths are generated; and updating the plurality of cross-domain navigation initial paths, generating a plurality of cross-domain navigation paths for indoor and outdoor inversion verification, performing path correction according to a verification result, and determining a target cross-domain navigation path. The technical problems of poor navigation result reliability and poor user experience caused by indoor and outdoor positioning data splitting, discontinuous cross-domain navigation and insufficient parking space level path planning precision in the prior art are solved, and the purposes of high-precision seamless navigation, dynamic path optimization, parking space level accurate guidance, high-precision positioning and the like are achieved. The reliability of a navigation result and the user experience are improved.

The invention relates to an antenna grid installation method for antenna layout design, and belongs to the technical field of electromagnetic compatibility and antennae, and the method comprises the steps: importing a grid model file of a large-size platform and an antenna, and reading a grid model to obtain a point coordinate list and a triangular unit list of the platform and the antenna; reading a starting point coordinate, a termination point coordinate, a voltage amplitude and a phase of an excitation voltage source of the antenna; establishing an antenna initial coordinate system, setting the main radiation direction of the antenna to establish a surface local coordinate system on the surface of the platform, and performing point matching on the model; and mounting the antenna grid model and the excitation source on the surface of the platform. According to the method, direct processing of complex grids is supported, limitation of traditional CAD modeling is broken through, subdivided discrete grids can be directly operated, and model reconstruction is avoided; through normal offset control and local coordinate system mapping, the normal function of the installed antenna is ensured, and the installation efficiency can be significantly improved on the premise of maintaining high-precision electromagnetic characteristics.

A mandibular advancement device includes an upper tray assembly and a lower tray assembly. The upper tray assembly includes an upper moldable component and an upper frame, and the lower tray assembly includes a lower moldable component and a lower frame. The device has a terminal point near the lingual side, and near the terminal point, at least one protrusion is provided on the upper frame and the lower frame. The at least one protrusion is configured to allow the patient's mouth to open and close and to maintain the relative front-to-back position of the upper frame and the lower frame, thereby allowing the device to keep the patient's airway open by advancing the mandible.

The application provides a vehicle-mounted refrigerator temperature control method and system, and relates to the technical field of intelligent networked vehicles. First, the application collects historical travel basic data and vehicle state data of the vehicle, and according to the coordinates of the starting point and the destination, the starting point is classified as a reference starting area, and the terminal point is classified as a reference destination area. The terminal point is mapped to the reference destination area, and the nearest charging pile thereof is taken as the destination area. A travel route is generated based on the reference starting area and the destination area, and the travel time is counted. When the navigation is started, the estimated travel time is estimated, a trained classification model is used to predict the travel route, parameters strongly related to the travel charging are extracted through PCA, and a logistic regression model is input to complete the charging behavior prediction. Finally, according to the navigation state and the charging prediction result, the remaining power after reaching the destination area is calculated by combining the estimated travel time, the refrigerator power consumption parameter and the vehicle unit mileage driving energy consumption, and the travel is divided into multiple typical operation scenarios to control the operation mode of the refrigerator compressor.

Embodiments of the present application provide a path planning method and device, equipment and a storage medium, and relate to the technical field of robots. The method comprises: determining a candidate blocking gap that blocks a task execution device from going to a terminal point based on a current environment description; simulating the robot pushing a to-be-pushed obstacle in a pushing direction and for a pushing duration based on the quality of the to-be-pushed obstacle corresponding to the candidate blocking gap, the ground friction coefficient in the current environment description, and the multi-body contact constraint between obstacles, to obtain a post-pushing environment description corresponding to the candidate blocking gap; detecting whether the task execution device is reachable from a starting point to the terminal point according to the post-pushing environment description corresponding to the target feasible gap with the lowest total consumption; if reachable, generating a passable path; otherwise, updating the current environment description to the post-pushing environment description corresponding to the target feasible gap, and returning to the step of determining the candidate blocking gap based on the current environment description. Through the present solution, the accuracy of the planned passable path can be improved.

The application relates to the technical field of power distribution network fault monitoring, in particular to a fault identification method and system based on an intelligent fusion terminal, which comprises the following steps: acquiring an instantaneous multi-dimensional electrical data set at each moment, taking the current moment as the terminal point to construct an input sample, inputting the input sample into a trained long short-term memory model to calculate the first fault probability of the input sample; inputting the input sample into a trained optimal fuzzy clustering model to calculate the second fault probability of the input sample; assigning respective weights to the output results of the long short-term memory model and the optimal fuzzy clustering model, weighting the first fault probability and the second fault probability to obtain the comprehensive fault probability of the input sample, and judging whether the power distribution network has a fault according to the comprehensive fault probability. Through multi-source information fusion, model collaborative optimization and dynamic weight distribution, the fault identification precision and response speed under the complex condition of the power distribution network are effectively improved.

Embodiments of the present application provide a motor vehicle parking lot scene map construction method, device and computer readable storage medium, the method comprising: constructing a global map coordinate system with a preset starting point of the parking lot as the coordinate origin, controlling the motor vehicle to drive from the preset starting point to the preset terminal point; in the process of driving the motor vehicle, generating a panoramic overhead view based on the video images collected by each vehicle-mounted camera; obtaining the current position coordinates of the motor vehicle at a predetermined period and constructing a local scene map of the motor vehicle based on the physical coordinates of the predetermined target in the panoramic overhead view; mapping the local scene map constructed in each period in the global map coordinate system according to the current position coordinates obtained in the corresponding period to obtain an initial global scene map; and excluding the repeated physical coordinates of the same predetermined target in the initial global scene map to obtain a target global scene map. The scene map constructed in this embodiment can be used to assist in selecting a parking space and to assist in realizing path planning.

The utility model relates to the technical field of fireproof wiring pipes, and discloses a fireproof wiring pipe for a large-scale data center machine room, which is provided with a sleeve, a fixed disc and a spring, when pipe bodies need to be connected, the sleeve is held to drive the spring to move backwards by taking a protruding part of the fixed disc as a terminal point through the fixed disc; the sleeve moves to drive the fixing disc to move, extrusion on the limiting ball is relieved at the same time, after the pipe body is inserted along the fixing pipe, the limiting ball makes contact with the groove of the pipe body, after the sleeve is loosened, the compressed spring drives the fixing disc to pop out, the fixing disc extrudes the limiting ball again, and therefore connection between the pipe bodies is completed. Compared with an existing mode that a corrugated pipe and an adhesive tape are used, connection between the pipe bodies is convenient and fast, and the efficiency is high when the pipe bodies need to be disassembled subsequently compared with the existing mode.