KKS-based intelligent display method for field work tasks of large hydropower station

Abstract

A KKS-based intelligent display method for field work tasks of a large hydropower station comprises the following steps: firstly, acquiring an electronic plan of the large hydropower station, dividing corresponding management areas according to different position equipment types, and extracting position coordinates corresponding to different management areas; establishing a two-dimensional rectangular coordinate system, and converting longitude and latitude coordinates corresponding to different equipment management areas into the two-dimensional rectangular coordinate system by using a Mercator projection technology; then, according to a power plant identification system, KKS codes corresponding to the whole area and equipment of the large hydropower station are designed; designing a template of a work ticket required before the regional equipment of the large hydropower station works; and finally, converting the work task quantity values of the equipment management areas at different positions into color values of the equipment areas of the two-dimensional rectangular coordinate system, distributing colors corresponding to the equipment areas, filling the colors of each equipment area unit into corresponding positions by using a drawing tool, and finally forming a visualization effect of the thermodynamic diagram.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent operation of hydropower stations, and in particular relates to a KKS-based intelligent display method for on-site work tasks of large hydropower stations. Background Art

[0002] As an important component of green energy, hydropower generation technology plays an increasingly important role in today's energy interconnection environment. Timely and accurate understanding of the details of on-site work tasks at large hydropower stations plays an important role in helping operation and maintenance personnel quickly grasp the health of the equipment in the entire plant, reasonably arrange the peak load sequence of units, eliminate equipment defects, and formulate equipment maintenance plans, providing strong support for the safe and stable operation of hydropower station units and social energy supply.

[0003] At present, the common methods to grasp the details of the on-site work tasks of large hydropower stations include: checking the duty log in the power production management information system of the hydropower station, and the verbal summary of the operation duty personnel during the handover. The shortcomings of the existing technology are: (1) It is impossible to accurately and comprehensively understand in real time whether equipment in different areas of the hydropower station is working (maintenance work, equipment defect treatment work, equipment regular work), which affects the comprehensive dispatch of the equipment in the whole plant by the on-duty personnel; (2) Traditional methods are inefficient, easily affected by human factors, and have low reliability. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a KKS-based intelligent display method for on-site work tasks of large hydropower stations, which can grasp the detailed work tasks of equipment in different areas of the hydropower station in real time and efficiently, which not only ensures that the operation and maintenance personnel can quickly grasp the health status of the equipment in the whole plant, but also plays an important role in the safe and stable operation of the hydropower station units and the reliable power supply of the power grid.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A KKS-based intelligent display method for on-site work tasks of large hydropower stations, the steps are: Step 1: Obtain the electronic plan of the large hydropower station, divide the corresponding management areas according to the equipment types at different locations, and extract the location coordinates corresponding to different management areas: longitude, latitude and altitude; Step 2: Based on the electronic plan of the large hydropower station obtained in step 1, a two-dimensional rectangular coordinate system is established, and the longitude and latitude coordinates corresponding to different equipment management areas are converted into the two-dimensional rectangular coordinate system using the Mercator projection technology; Step 3: Design KKS codes corresponding to the plant areas and equipment of large hydropower stations based on the power plant identification system; Step 4: Design a template for the work ticket required before working on equipment in the large hydropower station area. After the maintenance personnel take the work ticket to the relevant responsible person to start the work ticket process, they can enter the site to start work; Step 5: Convert the number of work tasks in the equipment management areas at different locations into the color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, assign the corresponding colors to the equipment areas, and use the drawing tool to fill the color of each equipment area unit to the corresponding position, finally forming a visualization effect of the heat map; Step 6: If the maintenance personnel complete the work tasks of the regional equipment and take the work ticket to find the relevant responsible person to complete the work ticket termination process, it means that the work of the regional equipment has been completed, and the color value of the corresponding equipment area in the two-dimensional rectangular coordinate system will disappear. Preferably, in step 1, the electronic plan view of the large hydropower station is divided into corresponding management areas according to the equipment types at different locations: (1) Area 1; (2) Area 2; (3) Area 3; (4) Area 4; (5) Area 5; (6) Area 6; (7) Area 7; (8) Area 8; (9) Area 9; (10) Area 10. Preferably, in step 1, the height division of the equipment area includes from top to bottom: unit rapid door layer, plant dam substation layer, cable corridor layer, flood discharge facility substation layer, drainage hole layer, flood discharge facility pump room layer, dam section drainage pump room layer, plant top floor, GIS layer, unit main transformer layer, unit upstream and downstream auxiliary plant layers, generator equipment layer, turbine equipment layer, unit entrance door layers, turbine generator technical water supply layer and hydropower station drainage corridor layer.

[0006] Preferably, in step 2, a two-dimensional rectangular coordinate system is established based on the electronic plan view of the large hydropower station obtained in step 1, and the longitude and latitude coordinates corresponding to different equipment management areas are transformed into the two-dimensional rectangular coordinate system using the Mercator projection technology, with the 0° meridian as the central meridian. The transformation formula is as follows: ; In the formula, x , y The horizontal and vertical coordinates of the two-dimensional rectangular coordinate system after transformation are respectively, is the image scale factor (specifically, the scale of the actual latitude and longitude of a large hydropower station displayed in the electronic plan view), and They respectively represent the longitude and latitude values ​​corresponding to different equipment management areas. ln is the logarithmic function and tan is the tangent function.

[0007] Preferably, in step 2, it is checked whether the horizontal coordinate and the vertical coordinate of the converted two-dimensional rectangular coordinate system are complete. If there are errors or different data, the different heights of the device area and the same longitude and latitude coordinates are used for conversion and filling.

[0008] Preferably, in step 2, the maximum and minimum normalization is used for processing, and finally the processed coordinate data is transmitted to the database by wireless transmission; the formula is as follows: ; Where: x * , is the normalized coordinate data; x min , x max are the minimum and maximum values ​​of the horizontal coordinate in the two-dimensional rectangular coordinate system; x is the horizontal coordinate value in the current rectangular coordinate system; y min , y max are the minimum and maximum values ​​of the ordinate in the two-dimensional rectangular coordinate system; y It is the vertical coordinate value in the current rectangular coordinate system.

[0009] Preferably, in step 3, the entire plant area and equipment of the large hydropower station include: a turbine generator system, an oil depot system, a compressed air system, a fire protection system, a HVAC system, a drainage system, a sewage treatment system, a lifting equipment system, an image monitoring system, a lighting system, a DC system, a 20kV system, a 10kV system, a 35kV system, a 400V system, a dam metal structure system, a hydraulic structure system, a stabilizer system, a 500kV system, an optical fiber system, a communication monitoring system, an MIS equipment system and an access control system.

[0010] Preferably, in step 4, the work ticket template mainly includes: work ticket number, work supervisor, work team members, equipment code, equipment name, work location, work content, work start and end time and working conditions, wherein the equipment code is the KKS code corresponding to the entire plant area and equipment of the large hydropower station designed in step 3 of the present invention. When the equipment in a certain area of ​​the hydropower station needs to carry out planned work, the equipment maintenance personnel can go to the site to start work after taking the work ticket to the relevant responsible person to handle the work ticket process.

[0011] Preferably, in step 4, when the work ticket processing process starts, the corresponding points can be marked in the two-dimensional rectangular coordinate system established in step 2 according to the KKS code corresponding to the equipment, and the automatic counting function can be used to count the number of work tasks started in equipment management areas at different locations. Preferably, in step 5, the work task quantity values ​​of equipment management areas at different locations are converted into color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, wherein the work task quantity values ​​of the equipment management areas can be distinguished by cool and warm tones according to the range of the work task quantity values ​​of the equipment management areas, equipment management areas with more tasks can be represented by darker colors, and equipment management areas with fewer tasks can be represented by lighter colors, and colors of equipment management areas at different locations are assigned according to the mapping relationship between the work task quantity values ​​and the color values ​​of the equipment management areas, and the color of each equipment area unit is filled in the corresponding position using a drawing tool, thereby finally forming a visualization effect of a heat map.

[0012] Preferably, in step 5, according to the plane coordinates in the two-dimensional rectangular coordinate system corresponding to the equipment management area and the color filling position, the quantity values ​​of the work tasks performed in the equipment management areas at different positions can be displayed by a computer.

[0013] Preferably, in step 5, by clicking on the visualized heat map of the equipment management area at different locations, all the work tasks there and the main work contents in the corresponding work ticket template can be viewed.

[0014] The present invention can achieve the following beneficial effects: The present invention can intuitively and clearly obtain whether the regional equipment of a large hydropower station is currently working, and plays an important role in helping hydropower station managers to rationally arrange the peak-shaving sequence of units, eliminate equipment defects, and formulate equipment maintenance plans, thereby achieving the purpose of detailed visualization of the work tasks of equipment in the hydropower station area and greatly improving the operation and maintenance management efficiency of hydropower station equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a flow chart of the present invention; Figure 2 It is an electronic plan view of a large hydropower station of the present invention; Figure 3 This is a large hydropower station work ticket template diagram (style 1) of the present invention; Figure 4 This is a large hydropower station work ticket template diagram (style 2) of the present invention; Figure 5 This is a smart display diagram of the on-site work tasks of a large hydropower station based on KKS of the present invention; Figure 6 This is a partial enlarged diagram of the intelligent display of the on-site work tasks of a large hydropower station based on KKS of the present invention; Figure 7 This is a schematic diagram of the intelligent display of on-site work tasks of a large hydropower station based on KKS of the present invention Figure 1; Figure 8 This is a schematic diagram of the intelligent display of on-site work tasks of a large hydropower station based on KKS of the present invention Figure 2 ; Fig. 9 This is a schematic diagram of the intelligent display of on-site work tasks of a large hydropower station based on KKS of the present invention Figure 3 ; Fig.10 This is a schematic diagram of the intelligent display of on-site work tasks of a large hydropower station based on KKS of the present invention Figure 4 ; Fig.11 This is a schematic diagram of the intelligent display of on-site work tasks of a large hydropower station based on KKS of the present invention Figure 5 . DETAILED DESCRIPTION

[0016] The preferred solution is Figures 1 to 11 As shown in the figure, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is shown in the figure. The steps are as follows: Step 1: Obtain the electronic plan of the large hydropower station, divide the corresponding management areas according to the equipment types at different locations, and extract the location coordinates corresponding to different management areas: longitude, latitude and altitude; Step 2: Based on the electronic plan of the large hydropower station obtained in step 1, a two-dimensional rectangular coordinate system is established, and the longitude and latitude coordinates corresponding to different equipment management areas are converted into the two-dimensional rectangular coordinate system using the Mercator projection technology; Step 3: Based on the power plant identification system (KKS), design KKS codes corresponding to the entire plant area and equipment of the large hydropower station; Step 4: Design a template for the work ticket required before working on equipment in the large hydropower station area. After the maintenance personnel take the work ticket to the relevant responsible person to start the work ticket process, they can enter the site to start work; Step 5: Convert the number of work tasks in the equipment management areas at different locations into the color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, assign the corresponding colors to the equipment areas, and use drawing tools to fill the color of each equipment area unit to the corresponding position, finally forming a visualization effect of the heat map.

[0017] Step 6: If the maintenance personnel complete the work tasks of the regional equipment and take the work ticket to find the relevant responsible person to complete the work ticket termination process, it means that the work of the regional equipment has been completed, and the color value of the corresponding equipment area in the two-dimensional rectangular coordinate system will disappear.

[0018] Furthermore, in step 1, the electronic plan of the large hydropower station is as shown in the attached Figure 2 As shown in the figure, the corresponding management areas are divided according to the equipment types in different locations: (1) Area 1: 9 areas in total, including 2 units, 3 voltage level distribution rooms, and 4 transformers; (2) Area 2: ① The main plant is divided into 17 areas according to 14 units + 3 installation sites; ② The upstream auxiliary plant is divided into 11 areas according to 8 strings of outgoing lines + 3 installation sites; ③ The downstream auxiliary plant is divided into 5 areas, including the left first, left second, and 3 installation sites; (3) Area 3: ① The main plant is divided into 15 areas according to 12 units + 3 installation sites; ② The upstream auxiliary plant is divided into 11 areas according to 8 strings of outgoing lines + 3 installation sites; ③ The downstream auxiliary plant is divided into 5 areas, including the left first, left second, and 3 installation sites; (4) Area 4: ① The main plant and downstream auxiliary plant are divided into 16 areas according to 6 units + 2 installation sites; (5) Area 5: 7 areas in total, including 6 units and high-voltage reactors; (6) Area 6: Power station unit rapid doors, sand flushing gates and substations, a total of 5 areas; (7) Area 7: Divided into 21 areas according to 14 generating units, 2 power substations (2 rooms each), and 3 sand discharge holes; (8) Area 8: divided into 47 areas according to 23 deep holes, 22 surface holes and 2 drainage holes; (9) Area 9: It is divided into 21 areas according to 12 generating units, 2 power substations (2 rooms each), 4 sand discharge holes and 3# drift discharge holes; (10) Area 10: 6 machines + 8# sand discharge holes, a total of 7 areas.

[0019] Limited to the length requirement of the present invention, the step 1 is attached Figure 2 In this section, we take Area 2 as an example to introduce the specific division of the equipment management area as shown in Table 1, with a total of 33 equipment areas.

[0020] Table 1 Division of equipment management areas in the left bank plant

[0021] Furthermore, in the step 1, the latitude and longitude coordinates and altitude values ​​of the corresponding management areas of the above-mentioned different types of equipment at different positions are measured, and the equipment area height division mainly includes from top to bottom: unit rapid door layer, plant dam substation layer, cable corridor layer (cable corridors are arranged at different heights), flood discharge facility substation layer, drainage hole layer, flood discharge facility pump room layer, dam section drainage pump room layer, plant top floor, GIS layer, unit main transformer layer, unit upstream and downstream auxiliary plant layers, generator equipment layer, turbine equipment layer, unit entrance door layers (volute entrance door, tailwater pipe entrance door, cone pipe entrance door, elbow pipe entrance door), turbine generator technical water supply layer, hydropower station drainage corridor layer, etc.

[0022] Furthermore, in step 2, based on the electronic plan view of the large hydropower station obtained in step 1, a two-dimensional rectangular coordinate system is established as shown in the attached figure. Figure 2 As shown, the longitude and latitude coordinates corresponding to different equipment management areas are transformed into a two-dimensional rectangular coordinate system using the Mercator projection technology, with the 0° longitude as the central meridian. The specific transformation formula is as follows: ; In the formula, x , y The horizontal and vertical coordinates of the two-dimensional rectangular coordinate system after transformation are respectively, is the image scale factor (specifically, the scale of the actual latitude and longitude of a large hydropower station displayed in the electronic plan view), and They respectively represent the longitude and latitude values ​​corresponding to different equipment management areas. ln is the logarithmic function and tan is the tangent function.

[0023] Furthermore, in step 2, it is checked whether the horizontal and vertical coordinates of the converted two-dimensional rectangular coordinate system are complete. If there are errors or different data, the different heights of the device area and the same longitude and latitude coordinates are used for conversion and filling.

[0024] Furthermore, in step 2, maximum and minimum normalization is used for processing, and the formula is as follows. Finally, the processed coordinate data is transmitted to the database by wireless transmission.

[0025] ; Where: x * , is the normalized coordinate data; x min , x max are the minimum and maximum values ​​of the horizontal coordinate in the two-dimensional rectangular coordinate system; x is the horizontal coordinate value in the current rectangular coordinate system; y min , y max are the minimum and maximum values ​​of the ordinate in the two-dimensional rectangular coordinate system; y is the ordinate value in the current rectangular coordinate system; Furthermore, in step 3, the power plant identification system (KKS) refers to a code used to identify the components of the power plant and its auxiliary systems. The KKS code clearly identifies the systems, equipment and components in the power plant according to the functions, processes and installation locations of the identified objects. The KKS code uses letters and numbers, according to certain rules, through scientific and reasonable arrangement and combination, to identify the characteristics of each system, equipment, component and building of the power plant, thereby forming a basic data set describing the status of the power plant, so as to facilitate the management of the power plant.

[0026] Furthermore, in the step 3, the entire plant area and equipment of the large hydropower station specifically include: a turbine generator system, an oil depot system, a compressed air system, a fire protection system, a HVAC system, a drainage system, a sewage treatment system, a lifting equipment system, an image monitoring system, a lighting system, a DC system, a 20kV system, a 10kV system, a 35kV system, a 400V system, a dam metal structure system, a hydraulic structure system, a stabilizer system, a 500kV system, an optical fiber system, a communication monitoring system, an MIS equipment system, an access control system, etc.

[0027] Furthermore, in the step 3, the KKS code corresponding to the whole plant area and equipment of the large hydropower station is designed. Limited by the length requirement of the patent of the present invention, the KKS coding rules corresponding to this area and equipment are introduced by taking the left bank plant as an example. The KKS code corresponding to the whole plant area and equipment of the large hydropower station proposed in the present invention consists of two parts: 1. The front part of the KKS code (equipment area code); 2. The back part of the KKS code (specific hydro-turbine generator equipment code).

[0028] (1) Design the front end of the KKS code (device area code), as shown in Table 2; Table 2 KKS encoding front part of device area

[0029] (2) Design the KKS code backend (hydro-generator equipment code), taking the 01F unit as an example. As shown in Table 3, the installation heights of different equipment have been extracted in step 1 and can be directly interconnected with the equipment KKS; Table 3 KKS code rear section of 01F unit equipment Device Name Corresponding to the latter part of KKS encoding Device Name Corresponding to the latter part of KKS encoding Water inlet metal structure and electromechanical equipment 1LPA Unit technical water supply pressure reducing valve 1PAA81 1B Main Transformer System 1BAT Unit technical water supply filter 1PAA82 Generator-transformer protection system 1ARB Unit self-use power system 1BFA10 LCB excitation transformer 1MKC01 Pure water expansion tank 1MKA10BB001 Water turbine 1MEA Turbine elbow access door 1MEA04AB003 Pressure tank system 1MEY11 Turbine downstream access door 1MEA04AB002 Pure water cooling system 1MKA10 Turbine upstream access door 1MEA04AB001 Derived bearing system 1MKA06 Unit technology water supply jet pump 1PAA83 Generator system 1MK Turbine volute access door TG-XJ-01FB-S-GLBJ-WK-JRM (3) According to the coding rules in Tables 3 and 4, the front part of the equipment area KKS code and the back part of the equipment KKS code are combined to form the KKS code corresponding to the whole plant area and equipment of the large hydropower station, as shown in Table 4, which fully displays the KKS code of the 01F equipment in the main plant of the 01F unit section.

[0030] Table 4 KKS code of 01F equipment in the main plant of 01F unit section 01F Device Name Corresponding to the latter part of KKS encoding 01F Device Name Corresponding to the latter part of KKS encoding 01F water inlet metal structure and electromechanical equipment 02011LPA 01F unit technical water supply pressure reducing valve 02011PAA81 1B Main Transformer System 02011BAT 01F unit technical water supply filter 02011PAA82 01F Generator-Transformer Protection System 02011ARB 01F unit self-use power system 02011BFA10 01FLCB excitation transformer 02011MKC01 01F Pure water expansion tank 02011MKA10BB001 01F Turbine 02011MEA 01F turbine elbow access door 02011MEA04AB003 01F Pressure tank system 02011MEY11 01F turbine downstream entrance 02011MEA04AB002 01F Pure water cooling system 02011MKA10 01F Turbine upstream entrance 02011MEA04AB001 01F Derived bearing system 02011MKA06 01F unit technical water supply jet pump 02011PAA83 01F Generator System 02011MK 01F turbine volute entrance TG-XJ-01FB-S-GLBJ-WK-JRM Further, in step 4, a template for the work ticket required before the equipment in the large hydropower station area is designed, as shown in the attached Figure 3 , 4 As shown, the work ticket template mainly includes: work ticket number, work supervisor, work team members, equipment code, equipment name, work location, work content, work start and end time, working conditions, etc., wherein the equipment code is the KKS code corresponding to the entire plant area and equipment of the large hydropower station designed in step 3 of the present invention. When the equipment in a certain area of ​​the hydropower station needs to carry out planned work, the equipment maintenance personnel can go to the site to start work after taking the work ticket to the relevant responsible person to handle the work ticket process.

[0031] Furthermore, in step 4, when the work ticket processing process starts, the corresponding points can be marked in the two-dimensional rectangular coordinate system established in step 2 according to the KKS code corresponding to the equipment, and the automatic counting function can be used to count the number of work tasks started in the equipment management areas at different locations.

[0032] Furthermore, in step 5, the work task quantity values ​​of equipment management areas at different locations are converted into color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, wherein, according to the range of the work task quantity values ​​of the equipment management areas, for example, the work task quantity values ​​of the equipment management areas can be distinguished by cool and warm tones, and equipment management areas with more tasks can be represented by darker colors, and equipment management areas with fewer tasks can be represented by lighter colors. According to the mapping relationship between the work task quantity values ​​and the color values ​​of the equipment management areas, the colors of equipment management areas at different locations are assigned, and the color of each equipment area unit is filled in the corresponding position using a drawing tool, thereby finally forming a visualization effect of a heat map.

[0033] Furthermore, in step 5, according to the plane coordinates in the two-dimensional rectangular coordinate system corresponding to the equipment management area and the color filling position, the number of work tasks performed in the equipment management areas at different positions can be displayed by the computer.

[0034] Furthermore, in step 5, by clicking on the visualized heat map of the equipment management area at different locations, all the work tasks there and the main work content in the corresponding work ticket template can be viewed.

[0035] Case analysis: This example analysis takes the intelligent display of on-site work tasks of equipment in different areas of a large hydropower station as an example, as shown in the attached Figure 5 The figure below is a smart display diagram of on-site work tasks of a large hydropower station based on KKS; the smart display function can be scaled down or enlarged. Figure 6 A partial enlarged picture is shown for this wisdom; Figure 7 -Attached Figure 8 This is a schematic diagram of the smart display proposed by the present invention. The figure clearly shows whether there is work to be performed by the equipment in different areas. When there is no work task in the area, it is displayed colorless (i.e., the background image). The equipment management area with less tasks has a lighter display color, and the equipment management area with more tasks has a darker display color. When you click on the color of the equipment in the area, you can fully display the detailed information of the work task there, such as: work ticket number, work content, work ticket type, work person in charge, precautions, etc.; Attachment Fig. 9 -Attached Fig.10 It shows that the same area equipment is performing multiple tasks at the same time. The corresponding area is darker in color. Fig.11 For attachment Fig.10 A work task detail in the smart display diagram. Through the KKS-based smart display method for on-site work tasks of large hydropower stations proposed by the present invention, it is possible to intuitively and clearly obtain whether the equipment in the large hydropower station area is currently working, which plays an important role in helping hydropower station managers to reasonably arrange the peak load sequence of units, eliminate equipment defects, and formulate equipment maintenance plans, etc., achieving the purpose of detailed visualization of the work tasks of equipment in the hydropower station area, and greatly improving the operation and maintenance management efficiency of hydropower station equipment.

[0036] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A KKS-based intelligent display method for on-site work tasks of large hydropower stations, characterized by: Step 1: Obtain the electronic plan of the large hydropower station, divide the corresponding management areas according to the equipment types at different locations, and extract the location coordinates corresponding to different management areas: longitude, latitude and altitude; Step 2: Based on the electronic plan of the large hydropower station obtained in step 1, a two-dimensional rectangular coordinate system is established, and the longitude and latitude coordinates corresponding to different equipment management areas are converted into the two-dimensional rectangular coordinate system using the Mercator projection technology; Step 3: Design KKS codes corresponding to the plant areas and equipment of large hydropower stations based on the power plant identification system; Step 4: Design a template for the work ticket required before working on equipment in the large hydropower station area. After the maintenance personnel take the work ticket to the relevant responsible person to start the work ticket process, they can enter the site to start work; Step 5: Convert the number of work tasks in the equipment management areas at different locations into the color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, assign the corresponding colors to the equipment areas, and use the drawing tool to fill the color of each equipment area unit to the corresponding position, finally forming a visualization effect of the heat map; Step 6: If the maintenance personnel complete the work tasks of the regional equipment and take the work ticket to find the relevant responsible person to complete the work ticket termination process, it means that the work of the regional equipment has been completed, and the color value of the corresponding equipment area in the two-dimensional rectangular coordinate system will disappear.

2. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 1, the electronic plan of the large hydropower station is divided into corresponding management areas according to the equipment types at different locations: (1) Area 1; (2) Area 2; (3) Area 3; (4) Area 4; (5) Area 5; (6) Area 6; (7) Area 7; (8) Area 8; (9) Area 9; (10) Area 10.

3. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 1, the height division of the equipment area includes from top to bottom: the unit rapid door layer, the plant dam substation layer, the cable corridor layer, the flood discharge facility substation layer, the drainage hole layer, the flood discharge facility pump room layer, the dam section drainage pump room layer, the top floor of the plant, the GIS layer, the unit main transformer layer, the unit upstream and downstream auxiliary plant layers, the generator equipment layer, the turbine equipment layer, the unit entrance door layers, the turbine generator technical water supply layer and the hydropower station drainage corridor layer.

4. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 2, based on the electronic plan view of the large hydropower station obtained in step 1, a two-dimensional rectangular coordinate system is established, and the longitude and latitude coordinates corresponding to different equipment management areas are transformed into the two-dimensional rectangular coordinate system using the Mercator projection technology, with the 0° meridian as the central meridian. The transformation formula is as follows: ； In the formula, x , y The horizontal and vertical coordinates of the two-dimensional rectangular coordinate system after transformation are respectively, is the image scale factor, and They respectively represent the longitude and latitude values ​​corresponding to different equipment management areas. ln is the logarithmic function and tan is the tangent function.

5. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 2, check whether the horizontal and vertical coordinates of the converted two-dimensional rectangular coordinate system are complete. If there are errors or different data, conversion and filling are performed using different heights of the device area and the same longitude and latitude coordinates.

6. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 2, the maximum and minimum normalization is used for processing, and finally the processed coordinate data is transmitted to the database by wireless transmission; the formula is as follows: ； Where: x * , is the normalized coordinate data; x min , x max are the minimum and maximum values ​​of the horizontal coordinate in the two-dimensional rectangular coordinate system; x is the horizontal coordinate value in the current rectangular coordinate system; y min , y max are the minimum and maximum values ​​of the ordinate in the two-dimensional rectangular coordinate system; y It is the vertical coordinate value in the current rectangular coordinate system.

7. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 3, the entire plant area and equipment of the large hydropower station include: turbine generator system, oil depot system, compressed air system, fire protection system, HVAC system, drainage system, sewage treatment system, lifting equipment system, image monitoring system, lighting system, DC system, 20kV system, 10kV system, 35kV system, 400V system, dam metal structure system, hydraulic structure system, stabilizer system, 500kV system, optical fiber system, communication monitoring system, MIS equipment system and access control system.

8. According to claim 1, a KKS-based intelligent display method for on-site work tasks of a large hydropower station is characterized by: In step 4, the work ticket template mainly includes: work ticket number, work supervisor, work team members, equipment code, equipment name, work location, work content, work start and end time and working conditions, wherein the equipment code is the KKS code corresponding to the entire plant area and equipment of the large hydropower station designed in step 3 of the present invention. When the equipment in a certain area of ​​the hydropower station needs to carry out planned work, the equipment maintenance personnel can enter the site to start work after taking the work ticket to the relevant responsible person to handle the work ticket process.

9. The method for intelligently displaying on-site work tasks of a large hydropower station based on KKS according to claim 1 is characterized by: In step 4, when the work ticket processing starts the process, the corresponding points can be marked in the two-dimensional rectangular coordinate system established in step 2 according to the KKS code corresponding to the equipment, and the automatic counting function can be used to count the number of work tasks started in the equipment management areas at different locations.

10. The method for intelligently displaying on-site work tasks of a large hydropower station based on KKS according to claim 1 is characterized in that: In step 5, the work task quantity values ​​of the equipment management areas at different locations are converted into the color values ​​of the equipment areas in the two-dimensional rectangular coordinate system in step 2, wherein the work task quantity values ​​of the equipment management areas can be distinguished by warm and cool tones according to the range of the work task quantity values ​​of the equipment management areas, and equipment management areas with more tasks can be represented by darker colors, and equipment management areas with fewer tasks can be represented by lighter colors. According to the mapping relationship between the work task quantity values ​​and the color values ​​of the equipment management areas, the colors of the equipment management areas at different locations are assigned, and the color of each equipment area unit is filled in the corresponding position using a drawing tool, thereby finally forming a visualization effect of a heat map.

11. The method for intelligently displaying on-site work tasks of a large hydropower station based on KKS according to claim 10 is characterized in that: In step 5, according to the plane coordinates in the two-dimensional rectangular coordinate system corresponding to the equipment management area and the color filling position, the number of work tasks performed in the equipment management areas at different positions can be displayed by the computer.

12. A KKS-based intelligent display method for on-site work tasks of a large hydropower station according to claim 11, characterized in that: In step 5, by clicking on the visualized heat map of the equipment management area at different locations, you can view all the work tasks there and the main work content in the corresponding work ticket template.

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