CN114445512A - Heat map generation method and device and system - Google Patents

Abstract

The application relates to a thermodynamic diagram generation method, a thermodynamic diagram generation device and a thermodynamic diagram generation system. The method for generating the thermal diagram is applied to a server and comprises the following steps: generating a two-dimensional thermal gray scale map according to the two-dimensional point data set; dividing the two-dimensional thermodynamic grayscale map into a plurality of sub-images, and distributing the sub-images to rendering nodes in one-to-one correspondence for rendering; and combining the plurality of rendered sub-images to obtain a two-dimensional thermal rendering map. The method and the device have the advantages that the server has strong capacity of processing large data volume, the phenomenon of blocking caused by limited computing capacity of the client is relieved, meanwhile, the server comprises a plurality of rendering nodes, the two-dimensional thermodynamic gray graph generated by the server is distributed to each rendering node, the purpose of load balancing is achieved, and the method and the device can quickly respond to the client when needing high-quality thermodynamic diagrams and processing mass data.

Description

Heat map generation method and device and system

technical field

The present application relates to the technical field of image processing, and in particular, to a heat map generation method and device and system thereof.

Background technique

With the continuous development of big data technology, data visualization technology is also changing with each passing day. Heatmap displays the characteristics of data in a special highlight form. As an intuitive visualization method, it has the good characteristics of comprehensively displaying data spatial characteristics and attribute characteristics. When the existing heat map is generated, 100,000 or even millions of data points need to be calculated. Due to the large amount of data, if all calculations are performed on the client to generate the heat map, but the performance of the client cannot reach the performance when processing a large amount of data, a card will appear. It is not possible to respond to the customer's demand for heatmaps in a timely manner.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a heat map generation method, device and system, which can quickly and efficiently generate a heat map, in view of the above technical problems.

A method for generating a heat map, applied to a server, the method includes:

Generate a two-dimensional thermal grayscale map based on a two-dimensional point dataset;

Divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute each sub-image to one-to-one corresponding rendering nodes for rendering;

Merge multiple rendered sub-images to obtain a 2D thermal rendering.

In one embodiment, the method further includes:

Receive the 2D thermal rendering request sent by the client, and the 2D thermal rendering request is used to instruct the server to send the generated 2D thermal rendering;

Respond to a request for a 2D thermal rendering map and send the 2D thermal rendering map to the client.

In one embodiment, before generating the two-dimensional thermal grayscale image according to the two-dimensional point data set, the method further includes:

Receive a two-dimensional thermal rendering request sent by the client, and the two-dimensional thermal rendering request is used to instruct the server to generate a two-dimensional thermal rendering;

The generation method also includes:

Send the generated 2D thermal rendering to the client.

In one embodiment, receiving a request for a two-dimensional thermal rendering map sent by a client includes:

Receive a 2D thermal rendering request from the client that carries the preset number of pixels;

Generate a 2D thermal grayscale map from a 2D point dataset, including:

Generate a 2D thermal grayscale map with the number of pixels from a 2D point dataset.

In one embodiment, generating a two-dimensional thermal grayscale map according to a two-dimensional point data set includes:

Aggregate and optimize the two-dimensional point data set to obtain a characteristic data set, which includes the position coordinates of multiple two-dimensional points and the thermal value of each two-dimensional point;

The thermal value threshold is obtained according to the thermal values of the plurality of two-dimensional points, and the thermal value threshold is the ratio between the average value of the thermal value and the maximum value of the thermal value;

Generate a two-dimensional thermal grayscale map based on position coordinates and thermal value thresholds.

In one embodiment, a two-dimensional thermal grayscale image is generated according to the position coordinates and the thermal value threshold, including:

Obtain the picture parameters of the two-dimensional thermal grayscale map according to the position coordinates, and obtain the grayscale value of each two-dimensional point according to the thermal value threshold and the thermal value of each two-dimensional point;

Generate a two-dimensional thermal grayscale map according to the picture parameters and grayscale values.

In one embodiment, obtaining the grayscale value of each two-dimensional point according to the thermal value threshold and the thermal value of each two-dimensional point, including:

The gray value of each two-dimensional point is obtained according to the product of the 255-fold thermal value threshold and the thermal value ratio of each two-dimensional point. The thermal value ratio of the two-dimensional point is the sum of the thermal value of each two-dimensional point and the maximum value of the thermal value. ratio between.

A method for generating a heat map, applied to a client, the method includes:

Sending a request for a two-dimensional thermal rendering map carrying preset time period information to the server to instruct the server to obtain multiple two-dimensional thermal rendering maps within the preset time period;

In the preset 3D environment, import multiple 2D thermal rendering maps to obtain 3D thermal maps.

A device for generating a heat map, comprising:

A two-dimensional thermal grayscale image generation module is used to generate a two-dimensional thermal grayscale image based on a two-dimensional point data set;

The rendering module is used to divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute the sub-images to one-to-one corresponding rendering nodes for rendering;

The 2D thermal rendering map generation module is used to merge multiple rendered sub-images to obtain a 2D thermal rendering map.

A heat map generation system, including:

The client is used to send a 2D thermal rendering request to the server to instruct the server to obtain the 2D thermal rendering;

The server is used to receive a two-dimensional thermal rendering request sent by the client, and the two-dimensional thermal rendering request is used to instruct the server to generate a two-dimensional thermal rendering; The thermal grayscale image is divided into multiple sub-images, and each sub-image is distributed to one-to-one corresponding rendering nodes for rendering; multiple rendered sub-images are merged to obtain a two-dimensional thermal rendering image; the generated two-dimensional thermal rendering The image is sent to the client.

The above heat map generation method is applied to a server, and the method includes: generating a two-dimensional thermal grayscale map according to a two-dimensional point data set; dividing the two-dimensional thermal grayscale map into a plurality of sub-images, and distributing each sub-image to a one-to-one correspondence Render in a render node; combine multiple rendered sub-images to obtain a 2D thermal rendering. The invention takes advantage of the server's strong ability to process large amounts of data to alleviate the stuttering phenomenon caused by the limited computing capability of the client. It is distributed to each rendering node to achieve the purpose of load balancing, and it can respond quickly to the client's need for high-quality heatmaps and massive data processing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the traditional technology, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the traditional technology. Obviously, the drawings in the following description are only the For some embodiments of the application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is one of the schematic flow charts of a method for generating a heat map in an embodiment;

Fig. 2 is the second schematic flowchart of a method for generating a heat map in one embodiment;

3 is a third schematic flowchart of a method for generating a heat map in an embodiment;

4 is a fourth schematic flowchart of a method for generating a heat map in one embodiment;

5 is a fifth schematic flowchart of a method for generating a heat map in an embodiment;

6 is a sixth schematic flowchart of a method for generating a heat map in an embodiment;

7 is a seventh schematic flowchart of a method for generating a heat map in an embodiment;

FIG. 8 is an eighth schematic flowchart of a method for generating a heat map in an embodiment;

9 is a ninth schematic flow chart of a method for generating a heat map in one embodiment;

FIG. 10 is a schematic structural diagram of an apparatus for generating a heat map in an embodiment.

Detailed ways

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Embodiments of the present application are presented in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application.

It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

As used herein, the singular forms "a," "an," and "the/the" can include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. designate the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more Possibilities of other features, integers, steps, operations, components, parts or combinations thereof.

In the description of this specification, reference to the description of the terms "some embodiments," "other embodiments," "ideal embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in the present specification. at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

In one of the embodiments, as shown in FIG. 1 , a method for generating a heat map is provided, which is applied to a server, and the method includes steps S100 to S300.

Step S100, generating a two-dimensional thermal grayscale map according to the two-dimensional point data set.

Specifically, the two-dimensional point data includes the position coordinates of a plurality of two-dimensional points. For example, if the 2D point represents a certain point on the map, the 2D point data is the latitude and longitude coordinates of the point; if the 2D point represents a particle in a certain space, the 2D point data is the latitude and longitude coordinates of the point. The coordinates of the point in the space where the point is located. And, the two-dimensional point dataset is stored in the memory of the server.

Step S200: Divide the two-dimensional thermal grayscale image into a plurality of sub-images, and distribute each sub-image to one-to-one corresponding rendering nodes for rendering.

Specifically, it can be understood that each point in the two-dimensional thermal grayscale image corresponds to the gray value of the point. If the two-dimensional thermal grayscale image is displayed in a two-dimensional environment, the two-dimensional thermal grayscale image can be A two-dimensional picture with orderly light and dark is presented. In this embodiment, a plurality of sub-images can be divided according to the two-dimensional thermal grayscale image displayed in the two-dimensional environment. In addition, if the two-dimensional thermal grayscale image is displayed in a three-dimensional environment, it can be seen that the gray value corresponding to each point is another dimension in the space, and the current display screen can only display a three-dimensional image from a certain viewing angle. For example, a plurality of sub-images may also be divided according to the display image presented by the three-dimensional picture on the display screen from a certain viewing angle.

Specifically, the server in this embodiment may include multiple rendering nodes, each rendering node is configured with a unified rendering program, and the first rendering node is also configured with a distribution function to distribute the above-mentioned sub-images to each render node, including itself.

Step S300, combining multiple rendered sub-images to obtain a two-dimensional thermal rendering map.

Specifically, the server in this embodiment also includes a large-screen controller and a file server, and the large-screen controller is used to re-splicing multiple rendered sub-graphics into a complete two-dimensional thermal rendering map according to the above division rules; file Server for storing rendered sub-images and 2D thermal rendering.

In this embodiment, by placing the processing process of generating a two-dimensional thermal rendering map in the server, the generation efficiency of the thermal map can be greatly improved, and the rendering process of the two-dimensional thermal gray map is distributed to different Rendering on the rendering node achieves the purpose of load balancing, and once again improves the efficiency of generating two-dimensional thermal rendering.

In one embodiment, as shown in FIG. 2 , the method for generating a heat map further includes: step S400 and step S500.

Step S400: Receive a two-dimensional thermal rendering request sent by the client, where the two-dimensional thermal rendering request is used to instruct the server to send the generated two-dimensional thermal rendering.

Step S500, in response to the request for the two-dimensional thermal rendering map, and sending the two-dimensional thermal rendering map to the client.

The server in this embodiment can also monitor the data in the local memory. When the stored 2D point data set in the memory changes, a 2D thermal rendering map can be generated in advance according to the 2D point data set. When thermal rendering, it is more efficient to respond to 2D thermal rendering requests. Among them, it can be understood that the change of the two-dimensional point data set can also be understood as the presence or absence of the change of the two-dimensional point data set.

In one embodiment, as shown in FIG. 3 , step S600 is further included before step S100.

Step S600: Receive a two-dimensional thermal rendering request sent by the client, where the two-dimensional thermal rendering request is used to instruct the server to generate a two-dimensional thermal rendering.

The method for generating a heat map further includes step S700.

Step S700, sending the generated two-dimensional thermal rendering map to the client.

The server in this embodiment may also obtain a two-dimensional point data set from the memory after receiving the two-dimensional thermal rendering request sent by the client, and obtain the two-dimensional thermal rendering according to the two-dimensional computer data set, and finally Send the two-dimensional thermal rendering map to the client to reduce the amount of computation on the server.

In one embodiment, as shown in FIG. 4 , in step S600, a request for a two-dimensional thermal rendering map sent by the client is received, and step S610 is further included.

Step S610: Receive a two-dimensional thermal rendering request from the client that carries the preset pixel quantity information.

Step S100 includes step S110.

Step S110, generating a two-dimensional thermal grayscale image with the number of pixels according to the two-dimensional point data set.

Specifically, the server in this embodiment may receive the preset pixel quantity information requested by the client to specify the requested two-dimensional heat map. For example, if a 2K resolution image is requested, or a 4K resolution image is requested, the resolution will be improved. . When the server calculates the image, it will generate a two-dimensional thermal grayscale image with the number of pixels at 2K resolution or 4K resolution, and render the two-dimensional thermal grayscale image with the corresponding number of pixels into a two-dimensional thermal rendering with the corresponding number of pixels. picture.

The server in this embodiment can generate a two-dimensional thermal rendering map with a specified number of pixels according to the user's instruction, which is more flexible and avoids the waste phenomenon of unified high-volume computation. And the server rendering breaks through the limitation of the traditional image display speed affected by the resolution. The image display and response speed of the traditional 4×18 mosaic wall and 2×2 mosaic wall are almost the same, and the effect is not affected by the mosaic scale of the mosaic wall.

In one embodiment, as shown in FIG. 5 , step S100 includes steps S120-S140.

In step S120, the two-dimensional point data set is aggregated and optimized to obtain a characteristic data set, where the characteristic data set includes the position coordinates of a plurality of two-dimensional points and the thermal value of each two-dimensional point.

Specifically, as mentioned above, the two-dimensional point data is the position coordinates of the two-dimensional point. The aggregation optimization process in this embodiment is to divide the plane where the current two-dimensional point data is located into a grid for operation. Therefore, the two-dimensional point must be In the divided grid, if several two-dimensional points are in one grid at the same time, these two-dimensional points are merged into one two-dimensional point. After the aggregation and optimization, the characteristic data of the two-dimensional point data after the aggregation and optimization is extracted, and the characteristic data includes the position coordinates of the two-dimensional point and the thermal value of the two-dimensional point after thermal analysis.

Step S130, obtaining a thermal value threshold according to the thermal values of the plurality of two-dimensional points, where the thermal value threshold is a ratio between the average value of the thermal value and the maximum value of the thermal value.

Specifically, the method for determining the thermal value threshold in this embodiment is: the ratio of the average thermal value of the two-dimensional point to the maximum thermal value of the two-dimensional point is used as the threshold. Therefore, the thermal value threshold is also in the range of 0~ within the range of 1.

Step S140: Generate a two-dimensional thermal grayscale map according to the position coordinates and the thermal value threshold.

In this embodiment, after a large number of two-dimensional point data sets are aggregated and optimized by the server, a plurality of feature data suitable for generating a two-dimensional thermal grayscale image are screened out. In this embodiment, the preset number of pixels specified by the client can also be received. The 2D thermal rendering map request for information, and according to the specified preset pixel number signal, the above grid division is reasonably set to aggregate and optimize the 2D point data. For example, when the client instructs to generate a 2K resolution 2D thermal rendering map, this embodiment divides a first number of grids, and when the client instructs to generate a 2K resolution 2D thermal rendering map, this embodiment divides A second number of grids, wherein the first number is less than the second number. Therefore, in this embodiment, the problem of wasting computing resources caused by repeated data calculation can be avoided through aggregation optimization.

In one embodiment, as shown in FIG. 6 , step S140 includes steps S141-S142.

In step S141, the picture parameters of the two-dimensional thermal grayscale image are acquired according to the position coordinates, and the grayscale value of each two-dimensional point is acquired according to the thermal value threshold and the thermal value of each two-dimensional point.

Specifically, in this embodiment, according to the position coordinates, the maximum and minimum values of the x-axis and y-axis of the plane where the two-dimensional point is located are obtained respectively, so as to determine the length-width ratio of the two-dimensional thermal grayscale image, and the length-width ratio is calculated As a picture parameter for generating a two-dimensional thermal grayscale image. Then, a corresponding blank image is generated according to the image parameters. For example, when the aspect ratio of the image parameters is 2:1, the generated blank image can be 20 cm long and 10 cm wide. Wherein, the blank picture obtained according to the picture parameters in this embodiment can be appropriately adjusted to obtain two-dimensional heat map pictures of different fields of view. For example, this embodiment can also generate a blank picture according to the picture parameter with an aspect ratio of 2:1 It can also be 40cm long and 20cm wide. In this case, the 40cm×20cm two-dimensional thermal grayscale image has a larger and clearer field of view than the 20cm×10cm two-dimensional thermal grayscale image.

It should be noted that the specific data in this embodiment are only used for illustration, and are not used to limit the protection scope of this application.

Step S142: Generate a two-dimensional thermal grayscale map according to the picture parameters and grayscale values.

Specifically, immediately after obtaining the picture parameters above, according to the original position coordinates of the two-dimensional point, the position coordinates in the current blank picture are converted in equal proportions, and the initial two-dimensional thermal gray is generated according to the gray value of the two-dimensional point. Degree Chart. Obviously, the initial two-dimensional thermal grayscale is a two-dimensional thermal grayscale image formed by discrete two-dimensional points. Although it is very intuitive, the display effect is not ideal. The point is preset with a certain radius, and the area formed by the two-dimensional point and the preset radius is used as a buffer area, and the buffer area is filled from dark to light by diffusing around the two-dimensional point image and using progressive grayscale bands. Since the grayscale values can be superimposed, the grayscale values can be superimposed for the area where the buffers intersect, so the more the buffers intersect, the larger the grayscale values.

In one of the embodiments, acquiring the grayscale value of each two-dimensional point according to the thermal value threshold and the thermal value of each two-dimensional point in step S141 includes the following steps:

The gray value of each two-dimensional point is obtained according to the product of the 255-fold thermal value threshold and the thermal value ratio of each two-dimensional point. The thermal value ratio of the two-dimensional point is the sum of the thermal value of each two-dimensional point and the maximum value of the thermal value. ratio between. That is, the grayscale value is equal to the thermal value threshold×(the thermal value of the two-dimensional point/the maximum value of the thermal value)×255.

In one of the embodiments, as shown in FIG. 7, a method for generating a heat map is provided, which is applied to a client, and the method includes steps S800-S900.

Step S800, sending a two-dimensional thermal rendering request to the server to instruct the server to obtain the two-dimensional thermal rendering.

Step S900, importing a two-dimensional thermal rendering map in a preset three-dimensional environment to obtain a three-dimensional thermal map.

Specifically, after receiving the 2D thermal rendering map sent by the server, the client presets a 3D graphic Plane, and attaches the obtained 2D thermal rendering map to the 3D Plane to generate a 3D thermal map, which is displayed in the Unity3D software. Set the 3D PlaneShader on the top, set the rendering type to Transparent and the rendering queue to Transparent, and turn on the transparent blending attribute BlendSrcAlphaOneMinusSrcAlpha in the rendering pass to get the 3D heat map.

In this embodiment, the heat map has been rendered in the process of generating the two-dimensional heat map by the server. Therefore, in the process of displaying the three-dimensional heat map on the client, the pressure of rendering on the client is reduced, and the three-dimensional display can be quickly and efficiently displayed. Heatmaps reduce the lag in client computing processing.

In one of the embodiments, as shown in FIG. 8 , a method for generating a heat map is provided, which is applied to a client. The method includes steps S800 including S810 , and step S900 includes step S910 .

Step S810, sending a request for a two-dimensional thermal rendering image carrying a preset time period to the server, so as to instruct the server to obtain multiple two-dimensional thermal rendering images within the preset time period.

Specifically, the client can send a request to obtain multiple two-dimensional thermal rendering images from 8:00 am to 9:00 am on the same day, or it can continuously obtain the two-dimensional thermal rendering images with the current request sending time as the starting point. , until the client sends a request termination signal to the server, and the server terminates sending the two-dimensional thermal rendering.

Step S910, importing a plurality of two-dimensional thermal rendering maps in a preset three-dimensional environment to obtain a three-dimensional thermal map.

In this embodiment, the client obtains the time-varying two-dimensional thermal rendering map from the server, and displays the dynamic three-dimensional thermal map on the client, so as to facilitate the client to follow the thermal state of the observation point.

In one of the embodiments, as shown in FIG. 9 , a method for generating a heat map is provided. The method includes steps S800 , S600 , S120 , S130 , S1411 , S142 , S200 , and S300 on the client side. , step S700, step S900.

Step 800, the client sends a request for a two-dimensional thermal rendering map to the server, so as to instruct the server to obtain the two-dimensional thermal rendering map.

Step S600, the server receives a two-dimensional thermal rendering request sent by the client, where the two-dimensional thermal rendering request is used to instruct the server to generate a two-dimensional thermal rendering.

Step S120, the server aggregates and optimizes the two-dimensional point data set to obtain a feature data set, where the feature data set includes the position coordinates of a plurality of two-dimensional points and the thermal value of each two-dimensional point.

Step S130, the server obtains a thermal value threshold according to the thermal values of the plurality of two-dimensional points, where the thermal value threshold is a ratio between an average thermal value and a maximum thermal value.

Step S1411, the server obtains the picture parameters of the two-dimensional thermal grayscale map according to the position coordinates, and obtains the grayscale value of each two-dimensional point according to the product of the thermal value threshold of 255 times and the thermal value ratio of each two-dimensional point. The thermal value ratio of is the ratio between the thermal value of each two-dimensional point and the maximum thermal value.

Step S142, the server generates a two-dimensional thermal grayscale map according to the picture parameters and grayscale values.

Step S200, the server divides the two-dimensional thermal grayscale image into a plurality of sub-images, and distributes each sub-image to one-to-one corresponding rendering nodes for rendering.

Step S300, the server merges multiple rendered sub-images to obtain a two-dimensional thermal rendering map.

Step S700, the server sends the generated two-dimensional thermal rendering map to the client.

Step S900, the client imports a two-dimensional thermal rendering map in a preset three-dimensional environment to obtain a three-dimensional thermal map.

Specifically, for the definition and explanation of the steps in the method for generating a heat map in this embodiment, please refer to the corresponding steps in the foregoing embodiments, which are not limited herein.

In this embodiment, the task of generating the overloaded two-dimensional thermal grayscale image and the rendering task of the two-dimensional thermal rendering image are equally distributed to other rendering nodes in the server. This feature is called load balancing. Divide the two-dimensional grayscale image into n×n sub-images, and render them in a matrix format, and distribute the rendering load of the sub-images to each rendering node in a balanced manner. Then, the frame rate is synchronized through the processing performance of the server itself to generate high-quality 2D thermal rendering, while ensuring the smoothness of operation, and reducing the rendering pressure of the client when generating 3D thermal maps.

It should be understood that although the steps in the flowcharts of FIGS. 1 to 9 are sequentially displayed according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in FIG. 1 to FIG. 9 may include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The order of execution is also not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the steps or stages within the other steps.

In one embodiment, as shown in FIG. 10 , an apparatus 100 for generating a thermal map is also provided, including a two-dimensional thermal grayscale map generating module 110 , a rendering module 120 and a two-dimensional thermal rendering map generating module 130 .

The two-dimensional thermal grayscale image generation module 110 is used to generate a two-dimensional thermal grayscale image according to the two-dimensional point data set; the rendering module 120 is used to divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute each sub-image to a Rendering is performed in a corresponding rendering node; the two-dimensional thermal rendering image generation module 130 is configured to combine multiple rendered sub-images to obtain a two-dimensional thermal rendering image.

For the specific definition of the apparatus 100 for generating a heat map, reference may be made to the above definition of a method for generating a heat map applied to a server, which will not be repeated here. Each module in the above-mentioned heat map generating apparatus 100 may be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

In one of the embodiments, a system for generating a heat map includes: a client and a server. The client is used to send a 2D thermal rendering request to the server; the server is used to receive the 2D thermal rendering request sent by the client, and the 2D thermal rendering request is used to instruct the server to generate a 2D thermal rendering; The data set generates a two-dimensional thermal grayscale image; the two-dimensional thermal grayscale image is divided into multiple sub-images, and each sub-image is distributed to one-to-one corresponding rendering nodes for rendering; multiple rendered sub-images are merged to obtain 2D thermal rendering; send the generated 2D thermal rendering to the client.

Specifically, for the functional limitations of the client and the server in this embodiment, reference may be made to the limitations on the client and the server in the foregoing embodiment, which will not be repeated here.

In this embodiment, by transferring the computing task of processing massive data to the server, and the client sends a request, a high-quality heat map can be obtained. In the entire transmission process, only one two-dimensional heat rendering map needs to be transmitted, which alleviates the need for the client to generate two-dimensional heat maps. The dimensional heat map is stuck, which can quickly and efficiently generate high-quality heat maps.

The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, all It is considered to be the range described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims (10)

1. A method for generating a heat map, characterized in that, applied to a server, the method comprising: Generate a two-dimensional thermal grayscale map based on a two-dimensional point dataset; Divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute each of the sub-images to one-to-one corresponding rendering nodes for rendering; The multiple rendered sub-images are merged to obtain a two-dimensional thermal rendering. 2. The method according to claim 1, wherein the method further comprises: receiving a two-dimensional thermal rendering request sent by a client, where the two-dimensional thermal rendering request is used to instruct the server to send the generated two-dimensional thermal rendering; In response to the request for the two-dimensional thermal rendering map, the two-dimensional thermal rendering map is sent to the client. 3. The method according to claim 1, wherein before generating the two-dimensional thermal grayscale image according to the two-dimensional point data set, the method further comprises: receiving a two-dimensional thermal rendering request sent by a client, where the two-dimensional thermal rendering request is used to instruct the server to generate the two-dimensional thermal rendering; The generating method also includes: Send the generated two-dimensional thermal rendering map to the client. 4. The method according to claim 3, wherein the receiving a two-dimensional thermal rendering request sent by the client comprises: Receive a 2D thermal rendering request from the client that carries the preset number of pixels; The generating a two-dimensional thermal grayscale map according to the two-dimensional point data set includes: The two-dimensional thermal grayscale map with the number of pixels is generated from a two-dimensional point dataset. 5. The method according to claim 1, wherein the generating a two-dimensional thermal grayscale map according to a two-dimensional point data set comprises: Perform aggregation optimization on the two-dimensional point data set to obtain a feature data set, where the feature data set includes the position coordinates of a plurality of two-dimensional points and the thermal value of each of the two-dimensional points; Obtaining a thermal value threshold according to thermal values of a plurality of the two-dimensional points, where the thermal value threshold is a ratio between an average value of the thermal values and a maximum value of the thermal values; A two-dimensional thermal grayscale image is generated according to the position coordinates and the thermal value threshold. 6. The method according to claim 5, wherein the generating a two-dimensional thermal grayscale map according to the position coordinates and the thermal value threshold comprises: Obtain the picture parameters of the two-dimensional thermal grayscale map according to the position coordinates, and obtain the grayscale value of each of the two-dimensional points according to the thermal value threshold and the thermal value of each of the two-dimensional points; A two-dimensional thermal grayscale image is generated according to the picture parameters and the grayscale value. 7 . The method according to claim 6 , wherein the obtaining the grayscale value of each of the two-dimensional points according to the thermal value threshold and the thermal value of each of the two-dimensional points comprises: 8 . The grayscale value of each of the two-dimensional points is obtained according to the product of 255 times the thermal value threshold and the thermal value ratio of each of the two-dimensional points, and the thermal value ratio of the two-dimensional point is the value of each of the two-dimensional points. The ratio between the thermal value of and the maximum value of the thermal value. 8. A method for generating a heat map, characterized in that, applied to a client, the method comprising: sending a request for a two-dimensional thermal rendering map carrying preset time period information to the server to instruct the server to obtain a plurality of the two-dimensional thermal rendering maps within the preset time period; In a preset three-dimensional environment, import a plurality of the two-dimensional thermal rendering maps to obtain a three-dimensional thermal map. 9. A device for generating a heat map, comprising: A two-dimensional thermal grayscale image generation module is used to generate a two-dimensional thermal grayscale image based on a two-dimensional point data set; a rendering module, configured to divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute each of the sub-images to one-to-one corresponding rendering nodes for rendering; A two-dimensional thermal rendering image generation module, configured to combine multiple rendered sub-images to obtain a two-dimensional thermal rendering image. 10. A system for generating a heat map, comprising: a client, configured to send a request for a two-dimensional thermal rendering map to a server to instruct the server to obtain the two-dimensional thermal rendering map; A server, configured to receive a request for a two-dimensional thermal rendering map sent by a client, where the two-dimensional thermal rendering request is used to instruct the server to generate the two-dimensional thermal rendering map; and generate a two-dimensional thermal ash according to the two-dimensional point data set degree map; divide the two-dimensional thermal grayscale image into multiple sub-images, and distribute each of the sub-images to the rendering nodes corresponding to one-to-one for rendering; combine the multiple rendered sub-images to obtain two 3D thermal rendering map; sending the generated 2D thermal rendering map to the client.

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