A method for integrating KKS code and trellis code

Abstract

The present invention discloses a method for the fusion application of KKS code and grid code, and relates to the field of information processing technology. The present invention comprises the following steps: step S1: spatial grid division and coding of the factory area; step S2: management grid division and coding of the factory area; step S3: establishing the mapping of "KKS code-spatial grid coding-management grid coding"; step S4: establishing the reverse mapping of "grid positioning point-management grid coding-KKS code in grid"; step S5: processing flow when the equipment has no KKS code; step S6: application based on the fusion of KKS code and grid coding. The present invention introduces the idea of ​​grid management into factory and equipment management, and establishes the three-dimensional data fusion of "KKS code-management grid coding-spatial grid coding" by establishing the three-dimensional associative index, especially realizing the event spatialization and management process of equipment management and operation.

Description

Technical Field

[0001] The present invention belongs to the field of information processing technology, and in particular relates to a method for integrating and applying KKS codes and grid codes. Background Art

[0002] Grid coding can generally be divided into two categories: geographic grid and management grid. Different grid codes are formed according to different division methods and coding rules.

[0003] The geographic grid is a spatial reference system that divides the Earth's spatial area into units of different scales. Commonly used geographic grids include four main types: longitude and latitude spherical discrete geographic grid, adaptive spherical discrete geographic grid, map projection-based discrete geographic grid, and regular polyhedron spherical discrete geographic grid.

[0004] There are many kinds of management grids, the most common ones are urban comprehensive management grids, environmental monitoring grids, traffic control grids, etc. They are generally regional divisions of local geographical space for different management areas.

[0005] The existing implementation process is as follows:

[0006] The KKS code consists of three parts: process identification, installation site identification and location identification. However, in actual use, only the process identification code is often used alone.

[0007] ①Process identification

[0008] It is used to identify various process system names, equipment names, serial numbers of the equipment, parts of the equipment, and which unit the system belongs to.

[0009] For example: =10SGC01 AP001 KP01

[0010] The symbol "=" before the mark is a prefix symbol, indicating that this string of marks is a process mark and can be omitted under normal circumstances; 10 represents unit 1#; SGC represents the fire water spray system; 01 represents a specific water spray system (such as a plant water-changing fire protection system or other water spray system); AP001 represents the 1# water pump unit (including the motor); KP01 represents the water pump component in the pump unit.

[0011] It should be pointed out that process identification is the most commonly used in KKS coding. It is mainly used in process professions such as steam turbines, boilers, electrical entities, coal transportation, chemistry, HVAC, water supply and drainage, fire protection, and hydraulic technology.

[0012] ②Identification of installation points

[0013] Used to identify the installation locations of electrical parts, instruments, and control devices installed on electrical switch cabinets, dials, and control consoles.

[0014] For example: +10CAA 03·A 5.

[0015] "+" is a prefix symbol, indicating that this mark is not a process mark; 10 represents unit 1#; CAA represents the protection interlocking equipment cabinet; 03 represents the number of the protection interlocking equipment cabinet; "·" is the installation location mark (unique); A is the vertical layer number; 5 is the horizontal position mark.

[0016] Installation site identification is mainly used in electrical secondary lines, instrumentation and control systems and other fields.

[0017] ③Identification of Location

[0018] This is an identification for a macro building or area, indicating the space on a certain floor in a factory building.

[0019] For example: +10UHA 08R001

[0020] "+" indicates that this mark is not a process mark; 10 indicates unit 1#; UHA indicates that this is the UHA plant (in the KKS code, any code starting with the letter U represents a building); 08 indicates the eighth floor; R001 indicates that the room is numbered 1.

[0021] Location identification is mostly used by process professionals to indicate the location of equipment, or by building structure fire protection professionals to indicate fire zones and designated terrain (surface area network).

[0022] In short, each production equipment will get a unique and dedicated KKS code from the beginning of design. In the process of equipment management, from procurement, supervision, inventory, installation, commissioning, maintenance to retirement, this KKS code will be used all the time. According to the KKS coding rules, it can be refined to code the parts on the equipment, including a screw on the equipment (if necessary). Through KKS coding, the production equipment of the whole factory can be standardized and the unified management of the equipment can be completed. At the same time, through the equipment coding, all relevant information of the equipment can be displayed in association, such as maintenance history, nameplate parameter settings, document information, etc.

[0023] However, the existing solutions have the following shortcomings:

[0024] 1. The KKS code encoding system is quite complete, but in practice it still cannot fully cover the needs of various application scenarios, and the resource value of data is not fully explored.

[0025] Especially after the KKS code system is built in a new power plant, the newly added scattered equipment and facilities in the daily operation often forget to add KKS codes. As a result, the KKS code data is incomplete, and the value of the KKS code data that has been built at a great cost needs to be further explored.

[0026] A specific actual case is that in the work ticket statistics of a power plant in June 2021, there were 131 work tickets that lacked KKS codes, accounting for 17.2% of the total (763). They mainly include the following types: (1) Auxiliary equipment lacks KKS codes. Such as the No. 1 boiler slag bin, the No. 1 coal powder sampling device of the No. 2 furnace 26 coal mill, and the C7 drive room of the coal conveyor; (2) Supporting facilities lack KKS codes. Such as the roller shutter door of the cooling tower in the No. 2 machine room, the lighting of the C4 trestle of the coal conveyor, the cable bridge of the steel plate warehouse, etc.; (3) Regional (non-point) facilities lack KKS codes. Such as the underground pipe corridor of the urea workshop, the gate area of ​​the steam engine room, and the No. 1 dry coal shed of the coal conveyor.

[0027] 2. The position identifiers in the KKS code do not have spatially resolvable meaning.

[0028] KKS code does not directly encode space. Although it also has location identification code, it does not directly contain absolute spatial information that can be parsed by computers. It is only the identification of the building and room where the equipment is located. Moreover, buildings are mainly classified according to their functional use, without considering the attributes of spatial location.

[0029] In addition, a large number of work scenes occur inside buildings, and the accuracy of the location identification of the KKS code needs to be improved. For example, it can only identify the level of the first room on the second floor of the turbine room, and the positional relationship between various facilities and equipment in the same room cannot be expressed accurately.

[0030] 3. The application of KKS coding is not convenient enough to support actual operation processes such as work tickets.

[0031] The KKS code is presented in the form of a nameplate at the equipment site, which requires manual interpretation and verbal reporting. The existing equipment repair initiation process is as follows: When the equipment site staff finds a problem, they call the back-end dispatcher and verbally report the equipment KKS code and fault information. The back-end issues a repair work order (work ticket) based on this information. In addition to the lack of KKS codes, common problems are: (1) low efficiency of information reporting, verbal reporting of information by the front end is prone to errors, and multiple reports are required; the back-end records are slow and the recorded information is not standardized. (2) There is no effective use of data such as photos to record and save the problems found on site. Simply following the text description of the work ticket is not conducive to the transmission of information from the early repair personnel to the subsequent maintenance personnel.

[0032] Therefore, based on the deficiencies in the above-mentioned solutions, this application document provides a method for integrating KKS code and grid coding to effectively solve the above-mentioned problems. Summary of the invention

[0033] The purpose of the present invention is to provide a method for the integrated application of KKS code and grid code. Through the three-dimensional associative indexing technology of "KKS code-management grid code-spatial grid code", data fusion in three dimensions of object, space and management is realized, which solves the problems that the existing KKS code encoding system cannot cover various scene requirements, the location representation does not have spatially parsable meaning, and cannot support location-based big data analysis.

[0034] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0035] The present invention is a method for integrating KKS code and trellis code, comprising the following steps:

[0036] Step S1: Divide and encode the factory area into spatial grids;

[0037] Step S2: Divide and encode the factory area into management grids;

[0038] Step S3: Establishing a mapping of “KKS code-spatial grid code-management grid code”;

[0039] Step S4: Establish a reverse mapping of "grid positioning point - management grid code - KKS code within the grid";

[0040] Step S5: Processing flow when the device does not have a KKS code;

[0041] Step S6: Application based on the fusion of KKS code and grid code.

[0042] As a preferred technical solution, in step S1, the specific steps of spatial grid division and coding of the factory area are as follows:

[0043] Step S11: Select the coordinate control point determined by the factory building design drawing as the origin to establish a rectangular coordinate system; wherein the x-axis is the east-west direction, the y-axis is the north-south direction, and the z-axis is the vertical height;

[0044] Step S12: Perform equidistant grid division based on meters as the basic unit and aggregate them level by level;

[0045] Step S13: Customize the multi-scale grid.

[0046] As a preferred technical solution, in step S12, the meter-level grid is the smallest unit; grids are aggregated in the four quadrants of the origin respectively, and every four plane grids are aggregated into a plane grid of the upper level; three-dimensional grid aggregation is the same.

[0047] As a preferred technical solution, the specific steps of dividing and coding the factory area into management grids in step S2 are as follows:

[0048] Step S21: Divide the factory building into management grids and encode them based on the principle of no overlap or omission in space.

[0049] Step S22: In the factory, set a grid positioning point for each management grid.

[0050] Step S23: Divide the area outside the factory into management grids and encode them.

[0051] As a preferred technical solution, in step S21, first consider dividing the management grid according to the location of the building structure in the factory, so that the markings are obvious and the space is regular; secondly, avoid artificially dividing large equipment. According to practical conditions, the management grid is controlled to a unit size of about 100 square meters to 200 square meters as much as possible; the management grid division is mainly based on electronic drawings such as CAD, and refers to on-site observation information. The code of the management grid is set by itself in the database background, such as management grid 001, management grid 002, etc., which is generally a sequential code.

[0052] As a preferred technical solution, in step S22, the positioning point should be iconic to facilitate taking photos and scanning codes, and a certain point on a column, wall or equipment within the management grid can be selected; the spacing of the positioning points should be as uniform as possible; each positioning point is coded according to the 1-meter grid in which it is located, and the code is pasted in the form of a QR code at the precise point; in this way, each positioning point code maps a management grid area.

[0053] As a preferred technical solution, in step S23, the scale of the management grid outside the factory building can be larger, such as 200 square meters to 500 square meters. However, no grid positioning points can be set outside the factory building, and the positioning of each point can be directly determined by using Beidou satellite navigation positioning terminal, UWB positioning terminal and other devices.

[0054] As a preferred technical solution, in step S3, the mapping flow chart of "KKS code-spatial grid code-management grid code" is as follows:

[0055] Step S31: collecting and acquiring the detailed specifications and dimensions of the device and the coordinates of its spatial position;

[0056] Step S32: combining the factory space grid division and the coding data, calculating the coding set of the 1-meter grid occupied by the equipment;

[0057] Step S33: Establishing an accurate mapping from KKS code to spatial grid code;

[0058] Step S34: The spatial grid code is upwardly associated with the management grid code.

[0059] As a preferred technical solution, in step S4, the grid code of the grid positioning point in the background database actually identifies the management grid area where it is located, and the management grid area can be associated with all the KKS codes of the equipment in the grid; when the front-line employees use the terminal to obtain the QR code information of the positioning point at their location through the code scanning function, the background obtains the management grid area where the positioning point is located through analysis, and then can retrieve and display the KKS codes of all the registered and associated equipment in the management grid area. The front-line employees check the equipment that needs to be repaired in the list, upload on-site photos, and click to realize "one-click reporting"; in this way, the drawbacks of easy errors in verbal reporting of information can be avoided, and the process operation can also be "traceable".

[0060] As a preferred technical solution, in step S5, when an employee finds that the equipment has no KKS code when reporting a repair on site, he or she needs to upload relevant photos and text descriptions on site, and the backend operator will generate the KKS code according to the established rules and include it in the database, and the next process will be executed normally.

[0061] As a preferred technical solution, in step S6, the KKS code data can be combined with the on-site code scanning of the smart terminal to form a variety of applications, and the steps are as follows:

[0062] Step S61: Mapping the spatial position of the device;

[0063] Step S62: Process management of personnel operation;

[0064] Step S63: Scan the code for indoor positioning and one-click alarm;

[0065] Step S64: Location-based big data analysis.

[0066] As a preferred technical solution, in step S61, the original KKS code data is only in the form of a database table and does not have the function of spatial distribution visualization. Based on the newly added grid coding, the spatial location of the equipment can be mapped, which is convenient for visual viewing and further statistical analysis of spatial distribution of inspection data, maintenance data, etc.

[0067] As a preferred technical solution, in step S62, the KKS code and grid code data are combined with the smart terminal photo and code scanning data and on-site monitoring video data to realize the process management of personnel operation behaviors such as current real-time equipment inspection, maintenance tasks, "two-ticket" operations, etc., and can also perform task assistance according to preset plans in time and space dimensions.

[0068] As a preferred technical solution, in step S63, scanning the QR code on site can obtain accurate information about the location, which has a certain indoor positioning function. Further combined with the background map function, indoor navigation can be realized; in an emergency, the code can be scanned to realize one-click alarm and help with accurate location. This is a realistic alternative to the high cost of the current indoor high-precision positioning equipment.

[0069] As a preferred technical solution, in step S64, based on the data such as the location of aggregated equipment and personnel, the spatial distribution and temporal distribution of equipment failures can be analyzed. The mutual correlation of equipment failures, the correlation between equipment failures and inspection tasks, operators, etc. can be further analyzed to manage the risk dynamics and security situation of the grid area.

[0070] The present invention has the following beneficial effects:

[0071] (1) The present invention introduces the concept of grid management into factory and equipment management, and realizes data fusion in three dimensions of object, space, and management by establishing a three-dimensional associated index of "KKS code-management grid code-spatial grid code", especially realizing the spatialization of equipment management and operation events and the proceduralization of management.

[0072] (2) Under the premise that indoor high-precision positioning has not yet been popularized, the present invention has a high cost-effective method of pasting QR codes on site, and can achieve refined traceability of the work process by using the coding of grid positioning points (1-meter spatial grid);

[0073] (3) The present invention embeds new means of the information society such as on-site code scanning and photo taking by smart terminals into the original workflow, thereby realizing the dynamic spatiotemporal refinement of the work process and reducing the noise interference of manual reporting, which is conducive to the activation and utilization of existing data resources such as KKS codes.

[0074] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0076] Figure 1 The present invention is a flow chart of a method for integrating KKS code and grid coding. DETAILED DESCRIPTION

[0077] 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.

[0078] See also Figure 1 As shown, the present invention is a method for integrating KKS code and grid coding, comprising the following steps:

[0079] Step S1: Divide and encode the factory area into spatial grids;

[0080] Step S2: Divide and encode the factory area into management grids;

[0081] Step S3: Establishing a mapping of “KKS code-spatial grid code-management grid code”;

[0082] Step S4: Establish a reverse mapping of "grid positioning point - management grid code - KKS code within the grid";

[0083] Step S5: Processing flow when the device does not have a KKS code;

[0084] Step S6: Application based on the fusion of KKS code and grid code.

[0085] As a preferred technical solution, in step S1, the specific steps of spatial grid division and coding of the factory area are as follows:

[0086] Step S11: Select the coordinate control point determined by the factory building design drawing as the origin to establish a rectangular coordinate system; wherein the x-axis is the east-west direction (east is positive), the y-axis is the north-south direction (south is positive), and the z-axis is the vertical height (the sky direction is positive);

[0087] Step S12: Perform equidistant grid division based on meters as the basic unit and aggregate them level by level;

[0088] Step S13: Customize the multi-scale grids to improve query calculation efficiency through encoding;

[0089] For example: code 00010002300

[0090] The first bit 0 indicates the northeast quadrant (1st quadrant) of the origin, the second to sixth bits 00100 indicate the 100th 1-meter grid in the positive x-direction, and the seventh to 11th bits 02300 indicate the 2300th 1-meter grid in the positive y-direction.

[0091] In step S12, the meter-level grid is the smallest unit; grids are aggregated in the four quadrants of the origin respectively, and every four plane grids are aggregated into a plane grid of the upper level; the aggregation of three-dimensional grids is the same.

[0092] In step S2, the specific steps of dividing and coding the factory area into management grids are as follows:

[0093] Step S21: Divide the factory building into management grids and encode them based on the principle of no overlap or omission in space.

[0094] Step S22: In the factory, set a grid positioning point for each management grid.

[0095] Step S23: Divide the area outside the factory into management grids and encode them.

[0096] In step S21, in the factory building, first consider dividing the management grid according to the location of the building structure (walls, columns, etc.), so that the markings are obvious and the space is regular; secondly, avoid artificially dividing large equipment (such as steam turbines). According to practical conditions, the management grid is controlled to a unit scale of about 100 square meters to 200 square meters as much as possible. (In the height dimension, it is generally divided according to the structural layer) The management grid division is mainly based on electronic drawings such as CAD, and is carried out with reference to on-site observation information. The coding of the management grid is set by itself in the database background, such as management grid 001, management grid 002, etc., which is generally a sequential code.

[0097] In step S22, the positioning point should be iconic and convenient for taking photos and scanning codes. A point on a column, wall or equipment within the management grid can be selected. The spacing of the positioning points should be as uniform as possible. Each positioning point is coded according to the 1-meter grid where it is located, and the code is pasted on the precise point in the form of a QR code. In this way, each positioning point code maps a management grid area.

[0098] In step S23, the scale of the management grid outside the factory building can be larger, such as 200 square meters to 500 square meters. However, no grid positioning points are set outside the factory building, and the positioning of each point can be directly determined by using Beidou satellite navigation positioning terminal, UWB positioning terminal and other devices.

[0099] In step S3, the mapping flow chart of “KKS code-spatial grid code-management grid code” is as follows:

[0100] Step S31: collecting and acquiring the detailed specifications and dimensions of the device and the coordinates of its spatial position;

[0101] Step S32: combining the factory space grid division and the coding data, calculating the coding set of the 1-meter grid occupied by the equipment;

[0102] Step S33: Establishing an accurate mapping from KKS code to spatial grid code;

[0103] Step S34: The spatial grid code is upwardly associated with the management grid code.

[0104] The above mapping of "KKS code - space grid code - management grid code" is a precise mapping method. When the precise coordinates of the device location are not required, a simple mapping method can also be used. The specific implementation is as follows:

[0105] Since the workload of actually collecting the precise coordinates of the equipment's location is too huge, and the KKS hierarchy structure shows that the low-level KKS is subordinate to the high-level KKS code, the relatively limited number of "process system" level KKS codes can be attached to the management grid through on-site marking and other methods, while the large number of "equipment and components" level KKS codes can be indirectly attached to the management grid through upward attribution;

[0106] For example, for the KKS code "=10SGC01 AP001 KP01", it is only necessary to determine the management grid code corresponding to SGC01 (fire water spray system 1#), and directly connect the subordinate components such as AP001 KP01 to SGC01. According to the outer contour of the SGC01 system, the corresponding management grid is specifically determined. (The mapping relationship between the equipment and the precise spatial grid is ignored).

[0107] Linear facilities (systems) such as fire water pipes often span multiple management grids. It is necessary to associate this system with the code of each management grid and manually mark which management grid the main equipment and components belong to based on space.

[0108] In step S4, the grid code of the grid location point in the background database actually identifies the management grid area where it is located, and the management grid area can be associated with all the KKS codes of the equipment in the grid; when the front-line staff use the terminal to obtain the QR code information of the location point through the code scanning function, the background obtains the management grid area where the location point is located through analysis, and then can retrieve and display all the registered and associated KKS codes of the equipment in the management grid area. The front-line staff check the equipment to be repaired in the list, upload the on-site photos, and click to realize "one-click reporting". This can avoid the drawbacks of verbal reporting of information that is prone to errors, and can also achieve "traces" of process operations.

[0109] In step S5, when an employee finds that the equipment does not have a KKS code when reporting a repair on site, he or she needs to upload relevant photos and text descriptions on site. The backend operator will generate a KKS code according to the established rules and include it in the database, and the next process will be executed normally.

[0110] In step S6, the KKS code data can be combined with the on-site code scanning of the smart terminal to form a variety of applications, and the steps are as follows:

[0111] Step S61: Mapping the spatial position of the device;

[0112] Step S62: Process management of personnel operation;

[0113] Step S63: Scan the code for indoor positioning and one-click alarm;

[0114] Step S64: Location-based big data analysis.

[0115] In step S61, the original KKS code data is only in the form of a database table and does not have the function of spatial distribution visualization. Based on the newly added grid coding, the spatial location of the equipment can be mapped, which is convenient for visual viewing and further statistical analysis of spatial distribution of inspection data, maintenance data, etc.

[0116] In step S62, the KKS code and grid code data are combined with the smart terminal photo and code scanning data and on-site monitoring video data to realize the process management of personnel operation behaviors such as real-time equipment inspection, maintenance tasks, "two-ticket" operations, etc., and can also provide task assistance according to preset plans in time and space dimensions.

[0117] In step S63, scanning the QR code on site can obtain accurate information about the location, which has a certain indoor positioning function. Further combined with the background map function, indoor navigation can be realized; in an emergency, the code can be scanned to realize one-click alarm and help with accurate location. This is a realistic alternative to the high cost of indoor high-precision positioning equipment.

[0118] In step S64, based on the data such as the location of aggregated equipment and personnel, the spatial distribution and temporal distribution of equipment failures can be analyzed. The correlation between equipment failures, the correlation between equipment failures and inspection tasks, operators, etc. can also be further analyzed to manage the risk dynamics and security situation of the grid area.

[0119] Embodiment 1 (dividing and coding the management network of the factory area)

[0120] In the factory, grid positioning points are set for each management grid. Each positioning point is coded according to the 1-meter grid where it is located, and the code is pasted on the ground or against the wall in the form of a QR code. Each positioning point code maps a management grid area.

[0121] Management grid units can also be demarcated outside the factory as needed and coded in the database background. However, grid positioning points can be set outside the factory, and the positioning of each point can be directly determined using Beidou satellite navigation positioning terminals, UWB positioning terminals and other devices.

[0122] Embodiment 2 (Establishing the reverse mapping of “grid positioning point (1-meter spatial grid code)-management grid code-KKS code within the grid”)

[0123] When frontline employees use the terminal to obtain the QR code of the location point through the code scanning function, the background will parse the management grid area where the location point is located, and then be able to retrieve the KKS codes of all registered and associated equipment in the management grid area. Frontline employees check the equipment to be repaired in the list, upload the on-site photos, and click "one-click reporting". This can avoid the drawbacks of verbal reporting that is prone to errors, and can also achieve "traces" of process operations.

[0124] Scan the QR code pasted on the site (its value is: grid code 00010002300), get the mapped management grid 003, and then automatically associate it with all the equipment codes in the management grid area (there are 4 devices). Check the required equipment and upload the fault picture and other information for repair.

[0125] It is worth noting that in the above system embodiment, the various units included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0126] In addition, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiments can be completed by instructing related hardware through a program, and the corresponding program can be stored in a computer-readable storage medium.

[0127] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for integrating KKS code and trellis code, characterized in that: The steps include: Step S1: Divide and encode the factory area into spatial grids; Step S2: Divide and encode the factory area into management grids; Step S3: Establishing a mapping of "KKS code - space grid code - management grid code"; Step S4: Establish a reverse mapping of "grid positioning point - management grid code - KKS code within the grid"; Step S5: Processing flow when the device does not have a KKS code; Step S6: Application based on the fusion of KKS code and trellis code; In step S1, the specific steps of spatial grid division and coding of the factory area are as follows: Step S11: Select the coordinate control point determined by the factory building design drawing as the origin to establish a rectangular coordinate system; wherein the x-axis is the east-west direction, the y-axis is the north-south direction, and the z-axis is the vertical height; Step S12: Perform equidistant grid division based on meters as the basic unit and aggregate them level by level; Step S13: performing custom encoding on the multi-scale grid; In the step S12, the meter-level grid is the smallest unit; the grids are aggregated in the four quadrants of the origin respectively, and every four plane grids are aggregated into a plane grid of the upper level; the three-dimensional grid aggregation is the same; In step S2, the factory area is divided into management grids according to the structure and equipment distribution; grid positioning points are set for each management grid in the factory building; and each positioning point is coded according to the 1-meter grid where it is located, and the code is pasted on the ground or against the wall in the form of a QR code; each positioning point code maps a management grid area; In step S3, the mapping process of "KKS code-spatial grid code-management grid code" is as follows: Step S31: collecting and acquiring the detailed specifications and dimensions of the device and the coordinates of its spatial position; Step S32: combining the factory space grid division and the coding data, calculating the coding set of the 1-meter grid occupied by the equipment; Step S33: Establishing an accurate mapping from KKS code to spatial grid code; Step S34: the spatial grid code is upwardly associated with the management grid code; In step S4, the grid code of the grid positioning point in the background database actually identifies the management grid area where it is located, and the management grid area can be associated with all the KKS codes of the equipment in the grid; when the front-line staff uses the terminal to obtain the QR code of the positioning point at the location through the code scanning function, the background obtains the management grid area where the positioning point is located through analysis, and then can retrieve and display all the KKS codes of the equipment registered and associated in the management grid area. The front-line staff checks the equipment to be repaired in the list, uploads the on-site photos, and clicks "one-click reporting"; In step S5, when an employee finds that the equipment does not have a KKS code when reporting a repair on site, he or she needs to upload relevant photos and text descriptions on site, and the backend operator will generate a KKS code according to the established rules and include it in the database, and the next process will be executed normally; In step S6, the KKS code data is combined with the on-site code scanning of the smart terminal to realize the spatial location mapping of the equipment, realize indoor positioning, one-click alarm, and carry out location-based big data analysis.

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