Data calculation and retrieval method and device for edges of Internet of Things

Abstract

The invention discloses an internet of things edge data calculation retrieval method and device, and the method comprises the steps: data preprocessing, index construction and retrieval execution, in the missing value processing operation in data cleaning, the internet of things edge equipment which does not collect data is dispatched to carry out fault judgment, and the fault is repaired; the Internet of Things edge equipment comprises a traction engineering vehicle, a traction trailer, a control console, a detection mechanism, a hoisting component and a lifting platen. According to the data calculation and retrieval method and device for the edge of the Internet of Things, the data calculation and retrieval method for the edge of the Internet of Things is optimized, the overall performance of a system is improved, the accuracy and relevance of retrieval results are improved, and for the edge equipment of the Internet of Things with data missing, the position of the equipment is directly reached; and the specific reason of data missing is accurately judged and corresponding processing is performed, so that the integrity and accuracy of the data are ensured, and a reliable basis is provided for data analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things, and in particular to a data computing and retrieving method and device at the edge of Internet of Things. Background Art

[0002] IoT edge devices are smart devices located at the edge of the network in the IoT system. They are at the intersection of the physical world and the digital world. They directly connect and manage physical entities and perform preliminary processing and analysis on the collected data. IoT edge devices are deployed close to the source of data generation. This close deployment makes data collection more timely and accurate, and reduces the possibility of data transmission delay and loss. IoT edge devices are used to collect various physical quantities or environmental parameters, such as temperature sensors, humidity sensors, light sensors, pressure sensors, acceleration sensors, etc. These sensors are widely used in environmental monitoring, industrial automation, smart home and other fields; In the prior art field, the data cleaning methods in the data computing and retrieval at the edge of the traditional Internet of Things often simply remove abnormal data or use fixed estimation methods to repair it. When the edge device of the Internet of Things is damaged and cannot upload data, it cannot truly reflect the data that the sensor should collect under normal working conditions, and misleads the data analysis results. In addition, the data computing and retrieval methods at the edge of the Internet of Things usually select a fixed index type, which is difficult to adapt to the multimodal characteristics and complex query requirements of the Internet of Things data, and cannot dynamically adjust the index type according to the access mode of the data, resulting in low retrieval efficiency in different query scenarios. The traditional parsing method requires the user to enter the retrieval request in a fixed format, which is difficult to handle complex multi-condition associated queries and cannot accurately understand and parse the user's complex retrieval intentions. Summary of the invention

[0003] The purpose of the present invention is to provide a data computing and retrieval method and device for the edge of the Internet of Things to solve the problems mentioned in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a data calculation and retrieval method at the edge of the Internet of Things, comprising the following steps: Step 1: Data preprocessing: 1. Data collection and formatting: IoT edge devices collect raw data and aggregate the data to external data terminals; Formatting data: The data terminal converts the data into a standard format and adds semantic tags that annotate the values ​​to indicate the context in which they were collected; 2. Data cleaning: The data terminal determines the noise data in the data, removes and corrects it, and stores it; Processing missing values: marking the data that a certain IoT edge device did not collect at a certain moment as a missing value, and dispatching the IoT edge device to diagnose the fault and repair it; Step 2: Index building: 1. Select the index type: Based on the multimodal characteristics of IoT data, a hybrid index method is used. For IoT systems that contain both time-series environmental monitoring data and device geographic location information, the data terminal is combined with a hash index to quickly find specific devices, and the spatiotemporal index is used to process queries related to geographic location and time. 2. Build index: The data terminal builds index for the data according to the selected index type; Step 3: Search execution: 1. Parsing the search request: Natural language processing-assisted parsing: Introducing natural language processing technology, users can express search requests in natural language, and the data terminal uses a lightweight natural language processing model to convert it into precise query conditions; Multi-condition association analysis: Introducing text AI analysis technology, the data terminal identifies input errors in search requests and automatically corrects and estimates and supplements them. The data terminal uses AI algorithms to logically understand the long paragraphs of text entered by users, find out the logical relationships, and convert them into corresponding query operations, thereby processing the complex associations between multiple search conditions; 2. Use index to search: Parallel index search: The data terminal performs parallel index search operations based on the parsed key information when using hybrid index or distributed index, and finally summarizes the results; Fast search based on cache: Establish a cache mechanism on the data terminal to cache the index results of frequently retrieved data to improve the next search speed; 3. Data extraction and return: The data terminal extracts data that meets the retrieval request from the storage location and personalizes the returned data based on the user's device type and preferences.

[0005] According to a data computing and retrieval method for the edge of the Internet of Things, a data computing and retrieval device for the edge of the Internet of Things is proposed, the device comprising: a traction engineering vehicle, a traction trailer, a control console, a detection mechanism, a lifting component and a lifting platform; the traction trailer is towed by the traction engineering vehicle at the rear side; the control console is installed inside the cab of the traction engineering vehicle, and the control console and the traction engineering vehicle are electrically connected; the detection mechanism is placed inside the traction trailer; the lifting component is arranged outside the traction trailer and can be stored inside the traction trailer; the lifting platform is installed on the rear side of the bottom end of the traction trailer, and the lifting platform and the control console are electrically connected.

[0006] Preferably, the detection mechanism includes: a mobile robot, a mechanical arm, an electromagnetic connector, an angle adjustment platform and a detection sensor; the mobile robot is placed at the inner bottom end of the tractor trailer, and the mobile robot and the control console are remotely connected via a network; the mechanical arm is installed at the front side of the top end of the mobile robot, and the mechanical arm and the mobile robot are electrically connected; the electromagnetic connector is installed at the middle of the rear side of the top end of the mobile robot, and the electromagnetic connector and the mobile robot are electrically connected; the angle adjustment platform is installed at the front side of the mobile end of the mechanical arm, and the angle adjustment platform and the mobile robot are electrically connected; the detection sensor is installed at the top of the mobile end of the angle adjustment platform, and the detection sensor and the mobile robot are electrically connected.

[0007] Preferably, the auxiliary mechanism includes: a drive module, a control module, a mobile sensor, a guide rail frame, a mounting seat, a pulley, a first motor and a belt; the number of the drive modules is two, and the two drive modules are arranged side by side on the left and right sides of the outside of the tractor trailer; the control module is installed in the middle of the top end of the left drive module, the drive module and the control module are electrically connected, and the control module is connected to the remote network of the console; the number of the mobile sensors is two, and the two mobile sensors are installed on the front sides of the left and right drive modules, and the mobile sensor and the control module are electrically connected; the number of the guide rail frames is two groups, and the number of each group of guide rail frames is two, and the two groups of guide rail frames are installed on the left and right drive modules in the up and down direction. The front and rear sides of the top of the block; the number of the mounting seats is four groups, the number of the mounting seats in each group is two, and the four groups of mounting seats are installed on the upper and lower sides of the outside of the two groups of guide rail frames along the up and down direction; the number of the pulleys is four groups, the number of the pulleys in each group is two, and the four groups of pulleys are rotatably connected to the inner sides of the four groups of mounting seats through rotating shafts; the number of the first motors is four, and the four first motors are respectively installed on the inner sides of the bottom mounting seats in the four groups of mounting seats, the first motor and the rotating end extend into the inner side of the mounting seat and are connected to the axis of the bottom pulley, and the first motor is electrically connected to the control module; the number of the belts is four, and the four belts are respectively sleeved on the outside of the four groups of pulleys along the up and down direction.

[0008] Preferably, the auxiliary mechanism also includes: guide rails, limit rollers, a rotating shaft seat, a scissor-type folding frame, a screw assembly and a second motor; the number of the guide rails is two groups, the number of the guide rails in each group is two, and the two groups of guide rails are respectively installed on the upper and lower sides of the inner front end of the left and right driving modules; the number of the limit rollers is two groups, the number of the limit rollers in each group is two, and the two groups of limit rollers are respectively arranged in the inner cavities of the two groups of guide rails; the number of the rotating shaft seats is two groups, the number of the rotating shaft seats in each group is two, and the two groups of rotating shaft seats are respectively installed Installed on the upper and lower sides of the inner rear end of the left and right driving modules; the scissor-type folding frame is arranged on the inner side of the two sets of rotating shaft seats of the two sets of limiting rollers through the rotating shaft along the left and right directions; the screw assembly is arranged in the middle of the inner front end of the right driving module through the bearing seat along the front and rear directions, and the screw nut in the screw assembly is connected to the outside of the right front axis of the scissor-type folding frame through the bearing; the second motor is installed in the inner middle part of the right driving module, the rotating end of the second motor is connected to the rear end of the axis of the screw in the screw assembly, and the second motor is electrically connected to the control module.

[0009] Preferably, the lifting components include: a mounting frame, a trough seat, a roller assembly, a belt clamp, a base frame, a telescopic guide rail, an electric telescopic rod and a first mounting rod; the number of the mounting frames is two, and the two mounting frames are arranged on the outside of the left and right groups of guide rail frames along the front-to-back direction; the number of the trough seats is two groups, and the number of the trough seats in each group is two, and the two groups of trough seats are respectively installed on the front and rear sides of the inner bottom ends of the left and right mounting frames; the number of the roller assemblies is two groups, and the number of the trough seats in each group is two, and the two groups of roller assemblies are respectively installed on the four sides of the inner cavity of the two groups of trough seats, and the inner side of each group of belt clamps is in contact with the outside of the guide rail frame; the number of the belt clamps is two groups, and the number of the belt clamps in each group is two, and the two groups of belt clamps are respectively installed on the two groups of trough seats on the inner side, the two groups of belt clips are connected to the outer wall of one side of the two groups of belts; the number of the base frames is two groups, the number of the base frames in each group is two, and the four groups of base frames are installed on the front and rear sides of the top of the two mounting frames along the front-to-back direction; the number of the telescopic guide rails is two, and the two telescopic guide rails are arranged on the inner side of the two groups of base frames along the front-to-back direction; the number of the electric telescopic rods is two, and the two electric telescopic rods are fixedly installed on the inner rear end of the two telescopic guide rails along the front-to-back direction, and the electric telescopic rod is electrically connected to the control module; the number of the first mounting rods is two, and the two first mounting rods are respectively arranged on the inner side of the telescopic end of the two telescopic guide rails along the front-to-back direction, and the two electric telescopic rods and the telescopic end are connected to the rear side of the top end of the left and right first mounting rods.

[0010] Preferably, the lifting component also includes: a telescopic rod, a sleeve shell, a sleeve frame, a limited telescopic rod, a micro-electric telescopic rod, a second mounting rod, an electric roller, a lifting module and an electromagnetic suction cup; the telescopic rod is installed at the inner front end of the left and right first mounting rods along the left and right directions; the sleeve shell is sleeved on the outside of the telescopic rod; the sleeve frame is arranged on the left side of the sleeve shell, and the sleeve frame is sleeved on the outside of the telescopic rod; the number of the limited telescopic rods is three, and the three limited telescopic rods are installed on the right side of the outside of the sleeve frame at a circumferential interval of one hundred and twenty degrees; the number of the micro-electric telescopic rods is three, and the three micro-electric telescopic rods are installed on the outside of the sleeve frame at a circumferential interval of one hundred and twenty degrees and are located at three On the left side of the limiting telescopic rod, the micro electric telescopic rod is electrically connected to the control module; the number of the second mounting rods is three, and the three second mounting rods are installed on the outside of the telescopic ends of the three limiting telescopic rods at a circumferential interval of one hundred and twenty degrees, and the telescopic ends of the three micro electric telescopic rods are respectively connected to the inner sides of the three second mounting rods; the number of the electric rollers is three, and the three electric rollers are respectively installed on the left ends of the three second mounting rods, and the electric rollers are electrically connected to the control module; the lifting module is installed on the outside of the sleeve shell, and the lifting module is electrically connected to the control module; the electromagnetic suction cup is installed at the bottom of the lifting end of the lifting module, and the electromagnetic suction cup is electrically connected to the control module.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The staff drives the towing engineering vehicle to tow the tractor trailer to the designated location. The mobile robot moves along the surface of the lifting platform to the corresponding position below the IoT edge device at the designated location. The robotic arm drives the angle adjustment platform to move to the specified height position. The angle adjustment platform drives the detection sensor to move in multiple angles so that the detection sensor is aligned with the IoT edge device. The detection sensor sends the image information and network signal data to the console through the mobile robot for display, so that the staff can remotely determine the cause of the IoT edge device failure.

[0012] 2. Move to the left and right sides of the mobile robot under the guidance of the mobile sensor through the drive module, and the two first motors on the left and right sides drive the pulleys at the corresponding positions to rotate, so that the belt drives the belt clamps on the left and right sides to drive the mounting frame at the corresponding position to move to the specified height outside the guide frame. The electric telescopic rods on the left and right sides drive the first mounting rod to drive the telescopic rod to the position above the mobile robot. The three-side micro electric telescopic rods extend and shorten themselves to drive the second mounting rods at the corresponding positions, so that the three-side electric rollers keep in contact with the outer wall of the telescopic rods. The motor inside the electric roller drives the roller to rotate to cooperate with the sleeve frame and the sleeve shell. The lower edge of the telescopic rod moves to the left or right outside, so that the electromagnetic suction cup below is aligned with the electromagnetic connector, and the lifting module drives the electromagnetic suction cup to descend to the specified height position, so that the electromagnetic suction cup and the electromagnetic connector are magnetically connected, and the mobile robot is lifted and passed over the obstacle. After the lifting is completed, the second motor drives the lead screw in the lead screw assembly to rotate, so that the lead screw nut in the lead screw assembly drives the upper limit roller at the corresponding position to move backward in the inner cavity of the guide rail, and the scissor-type folding frame folds inward under the limiting action of the rotating shaft seat, and the scissor-type folding frame drives the distance between the drive modules on the left and right sides to narrow, and the drive modules on the left and right sides pass through the obstacle and move with the mobile robot.

[0013] In summary, the present invention optimizes the data calculation and retrieval method at the edge of the Internet of Things, improves the efficiency of different types of queries, ensures that the index structure always matches the query requirements, improves the overall performance of the system, and lowers the user's usage threshold. It can accurately understand and process complex retrieval requests, improve the accuracy and relevance of retrieval results, and directly reach the location of the device for edge devices of the Internet of Things with missing data, accurately determine the specific cause of the missing data and make corresponding processing, ensure the integrity and accuracy of the data, and provide a reliable basis for data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Exploded diagram of the testing mechanism; Figure 3 for Figure 1 Exploded diagram of the lifting components; Figure 4 for Figure 3 A magnified image of point A; Figure 5 for Figure 3 A magnified view of point B; Figure 6 for Figure 3 Exploded diagram of the lifting components; Figure 7 for Figure 6 Enlarged view of point C; Figure 8 for Figure 6 Enlarged view of point D.

[0015] In the figure: 1, traction engineering vehicle, 2, traction trailer, 3, control console, 4, detection mechanism, 41, mobile robot, 42, mechanical arm, 43, electromagnetic connector, 44, angle adjustment platform, 45, detection sensor, 5, auxiliary mechanism, 51, drive module, 52, control module, 53, mobile sensor, 54, guide rail frame, 55, mounting seat, 56, pulley, 57, first motor, 58, belt, 59, guide rail, 510, limit roller, 511, shaft seat, 512, scissor folding frame, 5 13. Screw assembly, 514. Second motor, 6. Lifting components, 61. Mounting frame, 62. Trough seat, 63. Roller assembly, 64. Belt clamp, 65. Base frame, 66. Telescopic guide rail, 67. Electric telescopic rod, 68. First mounting rod, 69. Telescopic rod, 610. Sleeve housing, 611. Sleeve frame, 612. Limiting telescopic rod, 613. Micro electric telescopic rod, 614. Second mounting rod, 615. Electric roller, 616. Lifting module, 617. Electromagnetic suction cup, 7. Lifting platform. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 8 The present invention provides a technical solution: a data computing and retrieval method and device at the edge of the Internet of Things, comprising: Step 1: Data preprocessing: 1. Data collection and formatting: IoT edge devices collect raw data and aggregate the data to external data terminals; Format data: The data terminal converts the data into a standard format and adds semantic tags that annotate the values ​​of the data collection environment; 2. Data cleaning: The data terminal determines the noise data in the data, removes and corrects it, and stores it; it processes missing values, marks the data that a certain IoT edge device does not collect at a certain time as a missing value, and dispatches the IoT edge device to make a fault diagnosis and repair the fault; Step 2: Index building: 1. Select the index type: Based on the multimodal characteristics of IoT data, a hybrid index method is used. For IoT systems that contain both time-series environmental monitoring data and device geographic location information, the data terminal is combined with a hash index to quickly find specific devices, and the spatiotemporal index is used to process queries related to geographic location and time. 2. Build index: The data terminal builds index for the data according to the selected index type; Step 3: Search execution: 1. Parsing search requests: Natural language processing-assisted parsing: Introducing natural language processing technology allows users to express search requests in natural language, and the data terminal uses a lightweight natural language processing model to convert it into precise query conditions; Multi-condition association parsing: Introducing text AI analysis technology, the data terminal identifies input errors in search requests and automatically corrects and estimates and supplements them. The data terminal uses AI algorithms to logically understand the long paragraphs of text entered by users, find out the logical relationships therein, and convert them into corresponding query operations, thereby processing the complex associations between multiple search conditions; 2. Search using indexes: Parallel index search: The data terminal performs parallel index search operations based on the parsed key information, using hybrid indexes or distributed indexes, and finally summarizes the results; Fast search based on cache: A cache mechanism is established on the data terminal, and the index results of frequently retrieved data are cached to improve the next search speed; 3. Data extraction and return: The data terminal extracts data that meets the retrieval request from the storage location and personalizes the returned data based on the user's device type and preferences.

[0018] As a preferred solution, further, Figure 1As shown, in step 1, the device in which the IoT edge device performs fault judgment includes: a traction engineering vehicle 1, a traction trailer 2, a control console 3, a detection mechanism 4, a hoisting component 6 and a lifting platform 7. The traction engineering vehicle 1 is provided with a battery module and a charging connector to charge the mobile robot 41 and the control module 52 in the detection mechanism 4 and the hoisting component 6; the traction trailer 2 is towed by the traction engineering vehicle 1 at the rear; the control console 3 is installed in the cab of the traction engineering vehicle 1, the control console 3 is electrically connected to the traction engineering vehicle 1, a network module is provided in the control console 3, and a preset program is provided in the control console 3 to adopt automatic control or manual control according to actual needs; the detection mechanism 4 is placed in the traction trailer 2; the hoisting component 6 is provided outside the traction trailer 2 and can be stored in the traction trailer 2; the lifting platform 7 is installed at the rear side of the bottom end of the traction trailer 2, the lifting platform 7 is electrically connected to the control console 3, and the lifting platform 7 is controlled by the control console 3 to lift and lower, so that the mobile robot 41 and the drive module 51 can move from the inside of the traction trailer 2 to the external ground position along the surface of the lifting platform 7.

[0019] As a preferred solution, further, Figure 2 As shown, the detection mechanism 4 includes: a mobile robot 41, a mechanical arm 42, an electromagnetic connector 43, an angle adjustment platform 44 and a detection sensor 45; the mobile robot 41 is placed at the bottom end of the interior of the tractor trailer 2, the mobile robot 41 and the control console 3 are remotely connected via a network, and a control module is provided inside the mobile robot 41 to automatically control the electrical components inside the detection mechanism 4; the mechanical arm 42 is installed at the front side of the top end of the mobile robot 41, the mechanical arm 42 and the mobile robot 41 are electrically connected, the mechanical arm 42 is controlled by the mobile robot 41, and the mechanical arm 42 can drive the angle adjustment platform 44 to move to a specified height position; the electromagnetic connector 43 is installed at the middle of the rear side of the top end of the mobile robot 41, and the electromagnetic connector 43 and the mobile machine The angle adjustment platform 44 is installed on the front side of the mobile end of the mechanical arm 42, the angle adjustment platform 44 is electrically connected to the mobile robot 41, the angle adjustment platform 44 is controlled by the mobile robot 41, and the angle adjustment platform 44 can drive the detection sensor 45 to move in multiple angles; the detection sensor 45 is installed on the top of the mobile end of the angle adjustment platform 44, the detection sensor 45 is electrically connected to the mobile robot 41, and the detection sensor 45 is controlled by the mobile robot 41. The detection sensor 45 can be installed with different types of sensors according to actual needs to perform image capture and network signal detection on the IoT edge device at the specified location.

[0020] As a preferred solution, further, Figure 3 , Figure 4 and Figure 5As shown, the auxiliary mechanism 5 includes: a driving module 51, a control module 52, a moving sensor 53, a guide frame 54, a mounting seat 55, a pulley 56, a first motor 57, a belt 58, a guide rail 59, a limiting roller 510, a rotating shaft seat 511, a scissor-type folding frame 512, a screw assembly 513 and a second motor 514; there are two driving modules 51, and the two driving modules 51 are arranged side by side on the outside of the tractor trailer 2. The driving modules 51 are controlled by the control module 52, and the driving modules 51 can move in multiple directions; the control module 52 is installed in the middle of the top of the left driving module 51, the driving module 51 and the control module 52 are electrically connected, the control module 52 and the console 3 are remotely connected through the network, and the control module A network module is provided inside 52 to be able to connect to the remote network of the console 3, a battery module is provided inside the control module 52 to be able to power the electrical components inside the auxiliary mechanism 5, and a preset program is provided inside the control module 52 to be able to automatically control the electrical components inside the auxiliary mechanism 5; there are two mobile sensors 53, which are installed on the front sides of the left and right driving modules 51, and the mobile sensors 53 are electrically connected to the control module 52, and the mobile sensors 53 can take pictures of the external environment image and plan the moving path of the driving module 51; there are two groups of guide rail frames 54, and the number of each group of guide rail frames 54 is two, and the two groups of guide rail frames 54 are installed in the top front sides of the left and right driving modules 51 in the up and down directions. The number of mounting seats 55 is four, and the number of each mounting seat 55 is two. The four mounting seats 55 are installed on the upper and lower sides of the outer sides of the two guide rail frames 54 in the up and down direction; the number of pulleys 56 is four, and the number of each pulley 56 is two. The four pulleys 56 are rotatably connected to the inner sides of the four mounting seats 55 through the rotating shaft; the number of first motors 57 is four, and the four first motors 57 are respectively installed on the inner sides of the bottom mounting seats 55 in the four mounting seats 55. The first motor 57 and the rotating end extend into the inner side of the mounting seat 55 and are connected to the axis of the bottom pulley 56. The first motor 57 is electrically connected to the control module 52, and the first motor 57 is controlled by the control module 52 to drive the pulley 5 at the corresponding position. 6 rotates clockwise or counterclockwise; there are four belts 58, and the four belts 58 are respectively sleeved on the outside of the four groups of pulleys 56 in the up-down direction; there are two groups of guide rails 59, and each group of guide rails 59 has two guide rails, and the two groups of guide rails 59 are respectively installed on the upper and lower sides of the inner front end of the left and right driving modules 51; there are two groups of limit rollers 510, and each group of limit rollers 510 has two limit rollers, and the two groups of limit rollers 510 are respectively arranged in the inner cavity of the two groups of guide rails 59, and the limit rollers 510 can move forward and backward along the inner cavity of the guide rails 59; there are two groups of rotating shaft seats 511, and each group of rotating shaft seats 511 has two guide shaft seats, and the two groups of rotating shaft seats 511 are respectively installed on the upper and lower sides of the inner rear end of the left and right driving modules 51;The scissor-type folding frame 512 is arranged on the inner side of the two sets of rotating shaft seats 511 of the two sets of limiting rollers 510 through the rotating shaft in the left-right direction, and the scissor-type folding frame 512 itself can be folded and retracted; the lead screw assembly 513 is arranged in the middle of the inner front end of the right driving module 51 through the bearing seat in the front-back direction, and the lead screw nut in the lead screw assembly 513 is connected to the outer right front axis of the scissor-type folding frame 512 through the bearing, and the lead screw in the lead screw assembly 513 is arranged in the middle of the inner front end of the right driving module 51 through the bearing seat in the front-back direction, and the outer side of the lead screw is screwed with the lead screw nut; the second motor 514 is installed in the middle of the inner side of the right driving module 51, and the rotating end of the second motor 514 is connected to the rear end of the axis of the lead screw in the lead screw assembly 513, and the second motor 514 is electrically connected to the control module 52, and the second motor 514 is controlled by the control module 52 to drive the lead screw in the lead screw assembly 513 to rotate clockwise or counterclockwise. ;

[0021] As a preferred solution, further, Figure 6 , Figure 7 and Figure 8The hoisting component 6 shown includes: a mounting frame 61, a slot body seat 62, a roller assembly 63, a belt clip 64, a base frame 65, a telescopic guide rail 66, an electric telescopic rod 67, a first mounting rod 68, a telescopic rod 69, a sleeve housing 610, a sleeve frame 611, a limit telescopic rod 612, a micro electric telescopic rod 613, a second mounting rod 614, an electric roller 615, a hoisting module 616 and an electromagnetic suction cup 617; the number of mounting frames 61 is two, and the two mounting frames 61 are arranged outside the left and right groups of guide rail frames 54 along the front and rear directions; the number of slot body seats 62 is two groups, and the number of each group of slot body seats 62 is two, and the two groups of slot body seats 62 are respectively installed at the front and rear of the inner bottom ends of the left and right mounting frames 61. On both sides, the slot seats 62 can move up and down along the outside of the guide rail frame 54; there are two groups of roller assemblies 63, and each group of slot seats 62 has two members. The two groups of roller assemblies 63 are respectively installed on the four sides of the inner cavity of the two groups of slot seats 62. The inner side of each group of belt clips 64 contacts the outside of the guide rail frame 54, and the roller assemblies 63 can roll up and down along the outside of the guide rail frame 54; there are two groups of belt clips 64, and each group of belt clips 64 has two members. The two groups of belt clips 64 are respectively installed on the inner sides of the two groups of slot seats 62, and the two groups of belt clips 64 are connected to the outer wall of one side of the two groups of belts 58; there are two groups of base frames 65, and each group of base frames 65 has two members. The four groups of base frames 65 are arranged in the front-to-back direction. Installed on the front and rear sides of the tops of the two mounting frames 61; there are two telescopic guide rails 66, which are arranged on the inner sides of the two sets of base frames 65 along the front-to-back direction, and the telescopic guide rails 66 themselves can be telescoped to limit the first mounting rod 68; there are two electric telescopic rods 67, which are fixedly installed on the inner rear ends of the two telescopic guide rails 66 along the front-to-back direction, and the electric telescopic rods 67 are electrically connected to the control module 52, and the electric telescopic rods 67 are controlled by the control module 52 to extend and shorten; there are two first mounting rods 68, which are respectively arranged on the inner sides of the telescopic ends of the two telescopic guide rails 66 along the front-to-back direction, and the two electric telescopic rods 67 and The telescopic end is connected to the rear side of the top end of the left and right first mounting rods 68; the telescopic rod 69 is installed at the inner front end of the left and right first mounting rods 68 along the left and right direction, and the outside of the telescopic rod 69 is cylindrical. The telescopic rod 69 can follow and extend itself when the distance between the left and right driving modules 51 changes, and the sleeve shell 610 can move along the left and right direction of the outside of the telescopic rod 69; the sleeve shell 610 is sleeved on the outside of the telescopic rod 69; the sleeve frame 611 is set on the left side of the sleeve shell 610, and the sleeve frame 611 is sleeved on the outside of the telescopic rod 69; the number of the limiting telescopic rods 612 is three, and the three limiting telescopic rods 612 are installed on the right side of the outside of the sleeve frame 611 at a circumferential interval of 120 degrees;There are three micro electric telescopic rods 613, which are installed on the outside of the sleeve frame 611 at a circumferential interval of 120 degrees and are located on the left side of the three limit telescopic rods 612. The micro electric telescopic rods 613 are electrically connected to the control module 52, and the micro electric telescopic rods 613 are controlled by the control module 52 to extend and shorten; there are three second mounting rods 614, which are installed on the outside of the telescopic ends of the three limit telescopic rods 612 at a circumferential interval of 120 degrees, and the telescopic ends of the three micro electric telescopic rods 613 are respectively connected to the inner sides of the three second mounting rods 614; there are three electric rollers 615, which are respectively installed on the three second mounting rods 614. The left end of the electric roller 615 is electrically connected to the control module 52, the electric roller 615 is controlled by the control module 52, and the internal motor of the electric roller 615 can drive the roller to move along the outside of the telescopic rod 69; the hoisting module 616 is installed on the outside of the sleeve housing 610, the hoisting module 616 is electrically connected to the control module 52, the hoisting module 616 is controlled by the control module 52, and the hoisting module 616 can hoist the electromagnetic suction cup 617 to a specified height position; the electromagnetic suction cup 617 is installed at the bottom of the hoisting end of the hoisting module 616, the electromagnetic suction cup 617 is electrically connected to the control module 52, the electromagnetic suction cup 617 is controlled by the control module 52, and the electromagnetic suction cup 617 can be magnetically docked with the electromagnetic connector 43.;

[0022] Here’s how it works: Step 1: The staff drives the traction engineering vehicle 1 to tow the traction trailer 2 to the designated position, and controls the console 3 to start the lifting platform 7 and the mobile robot 41. The preset program inside the mobile robot 41 controls the mobile robot 41 to move along the surface of the lifting platform 7 to the outside of the traction trailer 2, and moves the mobile robot 41 to the corresponding position below the IoT edge device at the designated position. The preset program inside the mobile robot 41 controls the mechanical arm 42, the angle adjustment platform 44 and the detection sensor 45 to start. The mechanical arm 42 drives the angle adjustment platform 44 to move to the designated height position. The angle adjustment platform 44 drives the detection sensor 45 to move in multiple angle directions, so that the detection sensor 45 is aligned with the IoT edge device. The detection sensor 45 sends the image information and network signal data to the console 3 through the mobile robot 41 for display, so that the staff can remotely determine the cause of the IoT edge device failure; Step 2: When the mobile robot 41 needs to cross an obstacle with a narrow spacing, the staff controls the console 3 to start the control module 52. The preset program in the control module 52 controls the drive module 51, the mobile sensor 53, the first motor 57, the electric telescopic rod 67, the micro electric telescopic rod 613, the electric roller 615, the hoisting module 616, the electromagnetic suction cup 617 and the electromagnetic connector 43 to start. The drive module 51 moves to the left and right sides of the mobile robot 41 under the guidance of the mobile sensor 53. The first motors 57 on the left and right sides drive the pulleys 56 at the corresponding positions to rotate. Under the tension limit of the top pulley 56, the belt 5 8 circumferential movement, and drive the belt clips 64 on the left and right sides to drive the mounting frame 61 at the corresponding position to move to the specified height position outside the guide frame 54, the electric telescopic rods 67 on the left and right sides extend and shorten themselves, drive the first mounting rod 68 to drive the telescopic rod 69 to move to the position above the mobile robot 41 under the limiting action of the telescopic guide rail 66, the three-side micro electric telescopic rod 613 extends and shortens itself to drive the second mounting rod 614 at the corresponding position, and the three-side second mounting rod 614 drives the electric roller 615 at the corresponding position to move synchronously inward or outward under the limiting action of the three-side limiting telescopic rod 612, so that the three-side electric roller 615 maintains contact with the telescopic rod 6 9, the internal motor of the electric roller 615 drives the roller to rotate, so that it moves to the left or right along the outside of the telescopic rod 69 under the cooperation of the sleeve frame 611 and the sleeve shell 610, so that the lower electromagnetic suction cup 617 is aligned with the electromagnetic connector 43, and the hoisting module 616 drives the electromagnetic suction cup 617 to descend to a specified height position, so that the electromagnetic suction cup 617 and the electromagnetic connector 43 are magnetically docked. The hoisting module 616 hoists the mobile robot 41 to a specified height position under the cooperation of the electromagnetic suction cup 617 and the electromagnetic connector 43, and the electric telescopic rod 67 is extended to drive the mobile robot 41 to move horizontally. After the mobile robot 41 passes over the obstacle, the hoisting module 616 The installation module 616 hoists the mobile robot 41 to the ground position and releases the magnetic docking state between the electromagnetic suction cup 617 and the electromagnetic connector 43. After the hoisting is completed, the preset program inside the control module 52 controls the second motor 514. The second motor 514 drives the screw in the screw assembly 513 to rotate, so that the screw nut in the screw assembly 513 drives the upper limit roller 510 at the corresponding position to move backward in the inner cavity of the guide rail 59. The scissor-type folding frame 512 folds inward under the limiting action of the rotating shaft seat 511. The scissor-type folding frame 512 drives the distance between the left and right driving modules 51 to narrow, and the left and right driving modules 51 pass through obstacles and follow the mobile robot 41 to move.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A data computing and retrieval method at the edge of the Internet of Things, characterized in that: The following steps are involved: Step 1: Data preprocessing: 1) Data collection and formatting: IoT edge devices collect raw data and aggregate the data to external data terminals; Formatting data: The data terminal converts the data into a standard format and adds semantic tags that annotate the values ​​to indicate the context in which they were collected; 2) Data cleaning: The data terminal determines the noise data in the data, removes and corrects it, and stores it; Processing missing values: marking the data that a certain IoT edge device did not collect at a certain moment as a missing value, and dispatching the IoT edge device to make a fault diagnosis and repair the fault; Step 2: Index building: 1) Select the index type: Based on the multimodal characteristics of IoT data, a hybrid index method is used. For IoT systems that contain both time series environmental monitoring data and device geographic location information, the data terminal is combined with a hash index to quickly find specific devices, and the spatiotemporal index is used to process queries related to geographic location and time. 2) Index building: The data terminal builds indexes for the data according to the selected index type; Step 3: Search execution: 1) Parsing the search request: Natural language processing-assisted parsing: Introducing natural language processing technology, users can express search requests in natural language, and the data terminal uses a lightweight natural language processing model to convert it into precise query conditions; Multi-condition association analysis: Introducing text AI analysis technology, the data terminal identifies input errors in search requests and automatically corrects and estimates and supplements them. The data terminal uses AI algorithms to logically understand the long paragraphs of text entered by users, find out the logical relationships, and convert them into corresponding query operations, thereby processing the complex associations between multiple search conditions; 2) Use index to search: Parallel index search: The data terminal performs parallel index search operations based on the parsed key information when using hybrid index or distributed index, and finally summarizes the results; Fast search based on cache: Establish a cache mechanism on the data terminal to cache the index results of frequently retrieved data to improve the next search speed; 3) Data extraction and return: The data terminal extracts data that meets the retrieval request from the storage location and personalizes the returned data based on the user's device type and preferences.

2. A data computing and retrieval device at the edge of an Internet of Things, which is applied to a data computing and retrieval method at the edge of an Internet of Things as claimed in claim 1, characterized in that: The device comprises: Traction engineering vehicle (1); A tractor trailer (2) is towed at the rear side by the tractor engineering vehicle (1); A control console (3) is installed inside the cab of the traction engineering vehicle (1), and the control console (3) is electrically connected to the traction engineering vehicle (1); A detection mechanism (4) is placed inside the tractor trailer (2); A hoisting component (6) arranged outside the tractor trailer (2) and capable of being received inside the tractor trailer (2); A lifting platform (7) is installed on the rear side of the bottom end of the tractor trailer (2), and the lifting platform (7) is electrically connected to the control console (3).

3. The data computing and retrieval device at the edge of the Internet of Things according to claim 2 is characterized in that: The detection mechanism (4) comprises: A mobile robot (41) is placed at the bottom of the interior of the tractor trailer (2), and the mobile robot (41) and the control console (3) are remotely connected via a network; A mechanical arm (42) is mounted on the front side of the top end of the mobile robot (41), and the mechanical arm (42) and the mobile robot (41) are electrically connected; An electromagnetic connector (43) is installed at the middle of the rear side of the top end of the mobile robot (41), and the electromagnetic connector (43) and the mobile robot (41) are electrically connected; An angle adjustment platform (44) is installed on the front side of the mobile end of the mechanical arm (42), and the angle adjustment platform (44) is electrically connected to the mobile robot (41); A detection sensor (45) is mounted on the top of the moving end of the angle adjustment platform (44); the detection sensor (45) is electrically connected to the mobile robot (41).

4. The data computing and retrieval device at the edge of the Internet of Things according to claim 3 is characterized in that: The auxiliary mechanism (5) comprises: A driving module (51), wherein the number of the driving modules (51) is two, and the two driving modules (51) are arranged side by side on the left and right outside the tractor trailer (2); A control module (52) is installed at the middle of the top end of the driving module (51) on the left side, the driving module (51) and the control module (52) are electrically connected, and the control module (52) and the console (3) are remotely connected via a network; A mobile sensor (53), wherein the number of the mobile sensors (53) is two, the two mobile sensors (53) are installed on the front sides of the left and right driving modules (51), and the mobile sensors (53) are electrically connected to the control module (52); Guide rail frames (54), the guide rail frames (54) being provided in two groups, each group of the guide rail frames (54) being provided in two groups, the two groups of guide rail frames (54) being installed on the front and rear sides of the top ends of the left and right drive modules (51) in the up-down direction; Mounting seats (55), the number of the mounting seats (55) being four groups, the number of the mounting seats (55) in each group being two, and the four groups of mounting seats (55) being mounted on upper and lower sides of the exterior of the two groups of guide rail frames (54) in the up-down direction; Pulleys (56), the number of the pulleys (56) being four groups, the number of the pulleys (56) in each group being two, and the four groups of pulleys (56) being rotatably connected to the inner sides of the four groups of mounting seats (55) via rotating shafts; a first motor (57), wherein the number of the first motors (57) is four, and the four first motors (57) are respectively mounted on the inner side of the bottom mounting seat (55) in the four groups of mounting seats (55); the first motor (57) and the rotating end extend into the inner side of the mounting seat (55) and are connected to the axis of the bottom pulley (56); and the first motor (57) is electrically connected to the control module (52); Belts (58), the number of the belts (58) is four, and the four belts (58) are respectively sleeved on the outside of four groups of pulleys (56) in the up-down direction.

5. The data computing and retrieval device at the edge of the Internet of Things according to claim 4 is characterized in that: The auxiliary mechanism (5) further comprises: Guide rails (59), the guide rails (59) being provided in two groups, each group of the guide rails (59) being provided in two groups, the two groups of the guide rails (59) being respectively installed on the upper and lower sides of the inner front ends of the left and right drive modules (51); Limit rollers (510), the number of the limit rollers (510) being two groups, the number of the limit rollers (510) in each group being two, and the two groups of limit rollers (510) being respectively arranged in the inner cavities of the two groups of guide rails (59); A rotating shaft seat (511), wherein the rotating shaft seat (511) is provided in two groups, each group of the rotating shaft seats (511) is provided with two rotating shaft seats, and the two groups of the rotating shaft seats (511) are respectively installed on the upper and lower sides of the inner rear ends of the left and right driving modules (51); A scissor-type folding frame (512) is arranged on the inner side of two sets of rotating shaft seats (511) of two sets of limiting rollers (510) via rotating shafts in the left-right direction; A lead screw assembly (513) is arranged in the middle of the inner front end of the right driving module (51) via a bearing seat along the front-rear direction, and a lead screw nut in the lead screw assembly (513) is connected to the outside of the right front axis of the scissor-type folding frame (512) via a bearing; The second motor (514) is installed in the middle of the inner side of the right driving module (51), the rotating end of the second motor (514) is connected to the rear end of the axis of the lead screw in the lead screw assembly (513), and the second motor (514) is electrically connected to the control module (52).

6. The data computing and retrieval device at the edge of the Internet of Things according to claim 5, characterized in that: The hoisting component (6) comprises: A mounting frame (61), wherein the number of the mounting frames (61) is two, and the two mounting frames (61) are arranged outside the left and right guide rail frames (54) along the front-to-back direction; A trough seat (62), wherein the trough seat (62) is provided in two groups, each group of the trough seats (62) is provided with two trough seats, and the two groups of the trough seats (62) are respectively installed on the front and rear sides of the inner bottom ends of the left and right mounting frames (61); Roller assemblies (63), the number of the roller assemblies (63) being two groups, the number of the slot seats (62) being two in each group, the two groups of roller assemblies (63) being respectively mounted on four sides of the inner cavities of the two groups of slot seats (62), and the inner side of each group of belt clips (64) being in contact with the outer side of the guide rail frame (54); Belt clips (64), the number of the belt clips (64) being two groups, the number of the belt clips (64) in each group being two, the two groups of belt clips (64) being respectively mounted on the inner sides of the two groups of slot seats (62), and the two groups of belt clips (64) being connected to one side outer wall of the two groups of belts (58); Base frames (65), the number of the base frames (65) being two groups, the number of the base frames (65) in each group being two, and the four groups of base frames (65) being installed on the front and rear sides of the tops of the two mounting frames (61) along the front-to-rear direction; Telescopic guide rails (66), the number of the telescopic guide rails (66) being two, and the two telescopic guide rails (66) being arranged on the inner sides of the two groups of base frames (65) along the front-to-back direction; An electric telescopic rod (67), wherein the number of the electric telescopic rods (67) is two, and the two electric telescopic rods (67) are fixedly mounted on the inner rear ends of the two telescopic guide rails (66) along the front-to-back direction, and the electric telescopic rods (67) are electrically connected to the control module (52); A first mounting rod (68), wherein the number of the first mounting rods (68) is two, and the two first mounting rods (68) are respectively arranged on the inner side of the telescopic ends of the two telescopic guide rails (66) along the front-to-back direction, and the two electric telescopic rods (67) and the telescopic ends are connected to the rear sides of the top ends of the left and right first mounting rods (68).

7. The data computing and retrieval device at the edge of the Internet of Things according to claim 6, characterized in that: The hoisting component (6) further comprises: A telescopic rod (69) is mounted on the inner front ends of the two left and right first mounting rods (68) along the left-right direction; A sleeve housing (610) sleeved on the outside of the telescopic rod (69); A sleeve frame (611) is arranged on the left side of the sleeve housing (610), and the sleeve frame (611) is sleeved on the outside of the telescopic rod (69); A position-limiting telescopic rod (612), wherein the number of the position-limiting telescopic rods (612) is three, and the three position-limiting telescopic rods (612) are installed on the right side of the outside of the sleeve frame (611) at intervals of 120 degrees in the circumferential direction; A micro electric telescopic rod (613), wherein the number of the micro electric telescopic rods (613) is three, and the three micro electric telescopic rods (613) are installed outside the sleeve frame (611) at intervals of 120 degrees in the circumferential direction and are located on the left side of the three limit telescopic rods (612), and the micro electric telescopic rod (613) is electrically connected to the control module (52); A second mounting rod (614), the number of the second mounting rods (614) being three, the three second mounting rods (614) being installed on the outside of the telescopic ends of the three limiting telescopic rods (612) at intervals of 120 degrees along the circumferential direction, and the telescopic ends of the three micro-electric telescopic rods (613) being connected to the inner sides of the three second mounting rods (614) respectively; An electric roller (615), wherein the number of the electric rollers (615) is three, and the three electric rollers (615) are respectively mounted on the left ends of three second mounting rods (614), and the electric rollers (615) are electrically connected to the control module (52); A lifting module (616) is installed outside the sleeve housing (610), and the lifting module (616) is electrically connected to the control module (52); An electromagnetic suction cup (617) is installed at the bottom of the lifting end of the lifting module (616), and the electromagnetic suction cup (617) is electrically connected to the control module (52).

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