Method and system for controlling real-time monitoring of snow accumulation state on turnout

Abstract

The present invention provides a method and system for controlling real-time monitoring of a snow accumulation state on a turnout. The method comprises: acquiring an image of a turnout region in real time; determining snow accumulation data of the turnout region by performing identification on the image of the turnout region; and controlling a snow-melting action on the turnout region on the basis of the snow accumulation data. According to the method and system for controlling real-time monitoring of a snow accumulation state on a turnout of the present invention, a snow accumulation image of each turnout is monitored in real time, and the snow accumulation image is converted into data information and provided to a snow-melting control system for accurately determining the snow accumulation state of each turnout. Therefore, a turnout having snow accumulation can be accurately heated, thereby achieving the functions of fine, accurate control and monitoring of a snow-melting system of a turnout.

Description

Control method and system for real-time monitoring of turnout snow state TECHNICAL FIELD

[0001] The present application belongs to the field of rail transit safety technology, and particularly relates to a control method and system for real-time monitoring of turnout snow state. BACKGROUND

[0002] In recent years, turnout snow melting systems have encountered broader market opportunities, but also face more severe market competition. In order to gain the recognition of customers, the product must be able to quickly respond to market changes. How to use information technology and control technology to improve the informatization level of the system and platform, and thus improve the comprehensive competitiveness of the product, is an important issue currently faced by many manufacturers.

[0003] The electric heating turnout snow melting system adopts electric heating mode, and is an integrated system based on computer technology, network technology, automation technology and information technology. When snowfall or temperature change occurs, the system can automatically or manually start and stop the electric heating snow melting circuit. The system is composed of a turnout snow melting remote control center workstation, a station control terminal, a snow melting control cabinet, an environment detection device, an electric heating element and a mounting fixture, an isolation transformer, a connection cable and an information channel. The selected flat electric heating elements such as straight type and U type can meet the needs of installation and snow melting at different parts of various types of turnouts. The snow melting monitoring system adopts modular design, is convenient for user operation and maintenance, and has perfect diagnosis, detection, alarm, remote monitoring and management functions. It is widely used in passenger dedicated lines, railway trunk lines, heavy load lines and urban rail transit fields, and is suitable for various types of turnouts in electrified and non-electrified traction sections.

[0004] At present, the mainstream turnout snow melting system mostly relies on manual control system to start, and the heating device of the snow melting system is controlled to start and stop by the turnout temperature collected by the temperature sensor in combination with the meteorological information sensed by the meteorological station equipment. However, since the snowfall information provided by the meteorological station cannot accurately determine the type and intensity of snowfall, and there is a deviation between the snow retention time and the snowfall time, the presence of snow on the turnout cannot be accurately determined, and after heating, the heating effect cannot be observed by the station personnel, resulting in energy waste and safety hazards.

[0005] The turnout snow melting system has multiple functions, mainly including: system parameter configuration function, multiple mode control function, input and output function, interface function, emergency heating function.

[0006] 1. System parameter configuration function: the snow melting system has a system parameter configuration function, which can configure heating loop enable, temperature parameters, heating rated power and external communication interface parameters.

[0007] 2. Multi-mode control function: with remote monitoring, station monitoring, control cabinet (on-site) operation function and manual, automatic control mode, and manual control mode is preferred, in manual control mode, automatic control is invalid.

[0008] 3. Input and output function: the snow melting monitoring system adopts modular design, and the turnout trackside signal equipment is controlled through the monitoring module. The system can automatically and manually start and stop the heating circuit of the on-site snow melting control cabinet through the collection of rail temperature for logical judgment, so as to melt the snow or frozen rain at the active part of the turnout, and ensure the normal conversion of the turnout in rainy and snowy weather. At the same time, the system can monitor the control cabinet analog quantity, switching quantity and other information in real time, save and manage the related information, and give an alarm information when the control information and the execution result are inconsistent.

[0009] 4. Interface function: the system can form a network through the communication interface, and the remote control center can monitor the control information of each station.

[0010] 5. Emergency heating function: the station control terminal of the snow melting system is provided with an emergency control panel, which can start the heating circuit through the emergency heating button to realize system heating when the computer system, control module and other devices fail.

[0011] 6. Weather monitoring function: the outdoor weather information including snowfall, rainfall state, temperature, humidity and the like is collected.

[0012] The existing turnout snow melting system is provided with a weather station device for detecting weather information. The weather information obtained by the weather station includes data such as precipitation weather phenomenon / precipitation type, precipitation particle spectrum distribution, precipitation intensity and state. Through the above information, the snow melting system can judge the snowfall state of the outdoor snow melting equipment operating environment and control the opening and closing of the snow melting equipment. Since the weather station cannot obtain the outdoor snowfall intensity information, the snow melting system cannot accurately obtain the snow accumulation state of each turnout and simultaneously perform accurate heating control. In addition, the train running process will also drive the snow to cover the turnout, causing safety hazards. It cannot meet the safety of rail transit, the real-time monitoring function of the equipment state information and the demand for improving energy utilization efficiency. SUMMARY

[0013] In view of the above problems, the present application provides a control method for real-time monitoring of turnout snow accumulation state, comprising:

[0014] real-time acquisition of turnout area image;

[0015] determination of snow accumulation data of the turnout area by recognizing the turnout area image;

[0016] controlling snow melting action on the turnout area according to the snow accumulation data;

[0017] The snow data of the turnout region is determined by recognizing the image of the turnout region, including: processing the image information of each turnout region into computer-readable quantitative data by an image processing model, and the quantitative data includes a snow melting index.

[0018] Further, the real-time acquisition of the image of the turnout region includes:

[0019] The image of the turnout region is acquired by the image acquisition device within a specified shooting angle range, including: a first image acquired in a direction parallel to the rail and satisfying a first shooting angle, and a second image acquired in a direction not parallel to the rail and satisfying a second shooting angle; wherein the first shooting angle is less than the second shooting angle.

[0020] Further, the first shooting angle is not less than 45°, and the second shooting angle is not less than 60°.

[0021] Further, the snow melting index and the snow accumulation of the turnout are in a negative correlation.

[0022] Further, before recognizing the snow melting index, the acquired image is preprocessed, including:

[0023] The snow melting range is demarcated; and a turnout recognition auxiliary line is set.

[0024] Further, the coverage range of the heating device of the snow melting system is taken as the snow melting range.

[0025] The rail of the heating region is recognized and the rail line is outlined as an auxiliary line.

[0026] Further, the snow melting action on the turnout region is controlled according to the snow data, including:

[0027] The heating device of the snow melting system is controlled, taking the temperature of the rail as the heating start and stop conditions, and taking the snow melting data as the auxiliary start and stop conditions of the heating device of the snow melting system.

[0028] Further, the snow melting action on the turnout region is controlled according to the snow data, including:

[0029] When the snow melting index is lower than a specified threshold, the heating device of the snow melting system is triggered to be started earlier or closed later.

[0030] Further, it also includes:

[0031] The snow melting data is sent to the snow melting system, and the snow melting effect of the snow melting system is monitored according to the snow melting data.

[0032] The present application also provides a control system for real-time monitoring of the snow state of a turnout, including:

[0033] An image acquisition device is used to acquire the image of the turnout region in real time.

[0034] An image processing device for determining snow data of a turnout area by recognizing an image of the turnout area, and controlling a snow melting action on the turnout area according to the snow data.

[0035] The determining of the snow data of the turnout area by recognizing the image of the turnout area comprises: processing image information of each turnout area into computer-readable quantization data by an image processing model, the quantization data comprising a snow melting index.

[0036] Further, the image acquisition device can be configured to acquire images of the turnout area acquired at a specified shooting angle range, comprising: a first image acquired at a first shooting angle in a direction parallel to the direction of the turnout, and a second image acquired at a second shooting angle in a direction not parallel to the direction of the turnout; wherein the first shooting angle is not less than 45°, and the second shooting angle is not less than 60°.

[0037] Further, the snow melting index is negatively correlated with the amount of snow on the turnout.

[0038] Further, the image processing device is configured to, before recognizing the snow melting index, pre-process the acquired image, comprising:

[0039] Delineating a snow melting range; setting a turnout recognition auxiliary line.

[0040] Further, the image processing device is configured to:

[0041] The coverage range of the heating device of the snow melting system is taken as the snow melting range;

[0042] The rails of the heating area are recognized and the rail lines are outlined as auxiliary lines.

[0043] Further, the image processing device is configured to:

[0044] The temperature of the rail is taken as the heating start and stop condition of the heating device of the snow melting system, and the snow melting data is taken as the auxiliary start and stop condition of the heating device of the snow melting system.

[0045] Further, the image processing device is configured to:

[0046] When the snow melting index is lower than a specified threshold, triggering the early start or delayed stop of the heating device of the snow melting system.

[0047] Further, the image processing device is further configured to send the snow melting data to the snow melting system for monitoring the snow melting effect of the snow melting system.

[0048] Further, the system further comprises a data transmission device,

[0049] The data transmission device comprises one or more levels of data transmission modules, each level of data transmission module being configured to receive image information from one or more image acquisition modules and transmit the image information to a next level of data transmission module or an image processing device.

[0050] The data transmission devices at different levels are connected through optical fibers and / or a network for data transmission.

[0051] Further, the image acquisition device can share a power supply device and a mounting bracket with a weather station.

[0052] The data transmission device can be installed in an isolated transformer box or a control cabinet and connected to an indoor terminal through an existing line path.

[0053] The control method and system for real-time monitoring of the snow state of a turnout according to the present application can provide accurate judgment of the snow state of each turnout by converting the snow images of each turnout into data information and providing the data information to a snow melting control system, and can accurately heat the turnouts with snow and evaluate the effect after heating. Thus, the functions of fine and accurate control and monitoring of the snow melting system of the turnout can be realized.

[0054] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0056] FIG. 1 shows an example of a front and non-front direction shooting angle of image acquisition according to an embodiment of the present application;

[0057] FIG. 2 shows a control system structure diagram of real-time monitoring of the snow state of a turnout according to an embodiment of the present application;

[0058] FIG. 3 shows a pre-processed turnout area image according to an embodiment of the present application;

[0059] FIG. 4 shows another pre-processed turnout area image according to an embodiment of the present application. DETAILED DESCRIPTION

[0060] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely explain the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0061] The embodiments of the present application provide a control method and system for real-time monitoring of turnout snow state, which realizes real-time monitoring of turnout snow based on image acquisition equipment and computer image recognition technology, makes up for the turnout snow information that the existing snow melting system fails to cover, especially the snow coverage state of each turnout, and provides the precision of snow monitoring and snow melting control. Without loss of generality, the control method for real-time monitoring of turnout snow state in the embodiments of the present application can be realized by a control system for real-time monitoring of turnout snow state.

[0062] The control method for real-time monitoring of turnout snow state in the embodiments of the present application comprises: acquiring images of a turnout area in real time; determining snow data of the turnout area by recognizing the images of the turnout area; and controlling snow melting actions on the turnout area according to the snow data. The determination of the snow data of the turnout area by recognizing the images of the turnout area comprises: processing image information of each turnout area into computer-readable quantized data by an image processing model, wherein the quantized data comprises a snow melting index. In the embodiments of the present application, the acquisition of the images of the turnout area in real time means that images are acquired according to a specified period to ensure that the latest snow data can be acquired in time when the snow state of the turnout area changes. For example, the images of the turnout area are acquired every few minutes.

[0063] The acquisition of the images of the turnout area in real time comprises acquiring images of a target turnout area to be snow melted by shooting. The image acquisition in the embodiments of the present application is direct visual image acquisition and recognition for the snow melting object, i.e., the turnout, rather than image acquisition for a snow thickness measuring tool, so that the snow condition of the turnout can be more intuitively acquired. The snow in the turnout area brought by train movement and strong wind is often difficult to monitor by traditional methods, and the snow in the turnout area can be accurately recognized by image recognition, so that the snow melting system can be controlled to start the heating device to eliminate safety hazards.

[0064] In the embodiment of the present application, the image collected by the image collection device in the specified shooting angle range of the turnout area includes a first image collected in the direction perpendicular to the turnout direction and satisfying the first shooting angle, and a second image collected in the direction not perpendicular to the turnout direction and satisfying the second shooting angle, wherein the first shooting angle is smaller than the second shooting angle. For example, the first shooting angle is not less than 45°, and the second shooting angle is not less than 60°, as shown in FIG. 1. The resolution of the image collected at the snow melting part of the turnout is not less than 1024x1024 pixels.

[0065] The snow data of the turnout area is determined by recognizing the image of the turnout area, which includes processing the image information of each turnout area into computer-readable quantitative data by an image processing model. Without loss of generality, the quantitative data includes a snow melting index, for example, 0-100, and the larger the number, the less the snow and the higher the snow melting degree. In the embodiment of the present application, before recognizing the snow melting index, the collected image is preprocessed to improve the recognition accuracy, which includes: delimiting the snow melting range; and setting the turnout recognition auxiliary line. The preprocessing can be realized by a neural network model or by obtaining the configuration data input by the user through a software interface. For example, the coverage range of the heating device is taken as the snow melting range, as shown in FIG. 3 and FIG. 4. By recognizing the steel rail of the heating area and outlining the steel rail line as an auxiliary line (broken line in the figure), the invalid image recognition range is reduced, and the accuracy of model training and recognition is improved. The recognized snow melting index is sent to the control terminal of the snow melting system for heating control and effect monitoring.

[0066] According to the snow data, the snow melting action on the turnout area is controlled, which includes adjusting the heating action logic of the heating device of the snow melting system in real time according to the snow data. For example, the steel rail temperature is taken as the heating start and stop condition of the heating device, and the snow data is taken as the auxiliary start and stop of the heating device. When the steel rail temperature does not reach the start condition or has reached the stop condition, if it is judged according to the snow data that there is obvious snow on the turnout, the heating device is started in advance or closed in delay to ensure the snow melting effect. Without loss of generality, the snow melting data of the embodiment of the present application includes the snow melting index, and the snow melting index is negatively correlated with the snow amount of the turnout, that is, the more the snow, the lower the snow melting index. When the snow melting index is lower than a specified threshold, it is considered that there is obvious snow, and the heating device is started in advance or closed in delay. Wherein, the advance and delay are compared with the heating interval obtained based on the steel rail temperature.

[0067] The control method further comprises image recognition-based snow melting system heating device fault detection: images of the turnout area before and after heating are collected, snow melting data is obtained respectively, snow melting effect data is obtained by comparing the snow melting data before and after heating, and feedback is performed when the snow melting effect does not conform to the expectation. The control method of the embodiment of the present application can more intuitively observe the heating effect at the turnout through the image collection and recognition function. For the case that the snow melting effect does not conform to the expectation due to suspected damage of the heating device or other reasons, the snow melting system combines image information to give an alarm, and the problem is located and processed after manual confirmation.

[0068] As shown in FIG. 2, the control system for real-time monitoring of the turnout snow accumulation state in the embodiment of the present application comprises a pattern collection device, a data transmission device and an image processing device.

[0069] The image collection device: is used to collect images of the turnout, and the collected image information can clearly show the state of the turnout before being covered by snow and the state after being covered by snow. The image collection device can adjust the collection interval according to the transmission rate. At the same time, in order to ensure the reliability and readability of the turnout image information, the minimum shooting angle and the farthest shooting distance of the turnout are specified according to actual needs.

[0070] The shooting angle of the image collection device to the turnout area is best when it directly faces the turnout in the direction parallel to the rail, and the shooting angle (pitch angle) is not less than 45° when directly facing, and the shooting angle is not less than 60° when not directly facing (for example, perpendicular to the directly facing direction). The image resolution of the collected snow melting part of the turnout is not less than 1024x1024 pixels. The installation mode of the image collection device is not limited to fixed shooting or rotating scanning shooting. The image collection device installed outdoors can collect clear image information of each turnout with a heating unit installed, which is used for the snow melting system to judge the snow accumulation state of the turnout, and to distribute different heating time according to the snow accumulation state of the turnout, while monitoring the snow accumulation state before and after heating of each turnout, so as to realize precise control of the heating device by the turnout snow melting system.

[0071] The data transmission device comprises one or more levels of data transmission modules, each level of data transmission module is used to receive image information of one or more image collection modules, and send the image information to the next level of data transmission module or the image processing device (terminal). The data transmission devices at different levels transmit data through optical fibers and / or networks. Based on the number of equipped image collection devices, there are at least 1 level to at most n (n is greater than 1) levels of data transmission modules, and each level of data transmission module comprises one or more data transmission modules. In another embodiment, the data transmission device can also use video baseband transmission, microwave transmission, twisted pair balanced transmission, wideband common cable transmission, etc. The image processing device is arranged indoors and connected with the control terminal of the snow melting system. The data transmission module and the image collection device are arranged outdoors.

[0072] The data transmission device is arranged by fully considering the reduction of newly laid equipment by using existing equipment and cables. Correspondingly, the image acquisition device can share the power supply device and the installation support with the weather station. The data transmission device can be installed in each isolation transformer box or control cabinet and connected to the indoor terminal through the existing line path, thereby reducing the installation and maintenance costs.

[0073] The turnout snow melting system obtains the images of all turnouts installed with the turnout snow melting device at each station through the image acquisition device. Since the number of turnouts to be collected at the station is large, in order to ensure the clarity and reliability of the collected images, the installation height of the image acquisition device and the distance between the image acquisition device and the collected turnout meet the equipment standard, so as to ensure that the images provided to the turnout snow melting system for processing can be correctly recognized by the system. At the same time, the turnout snow melting system also has the functions of rapid transmission, storage and reliable processing of the image data in combination with the corresponding data characteristics, thereby realizing the requirements of timeliness and reliability of data processing.

[0074] The image processing device is built-in with an algorithm model. The algorithm model uses a deep learning method and is configured in the image processing terminal software for processing the collected turnout snow images. The algorithm model is trained by the images collected on site with snow before use, and the characteristic values of the images and the artificially measured snow index are used as labels to train the parameters of the model. The trained model is used to identify real-time snow images on site. Without loss of generality, the algorithm model uses a neural network structure (CNN, Convolutional Neural Network) based on image recognition / classification technology to identify snow, such as VGG (Visual Geometry Group Network), ResNet (Residual Network), etc.

[0075] The image processing device is used for receiving and processing the image information of each turnout and pre-processing. The image information of each turnout is processed into quantized data readable by a computer through the image processing model. Without loss of generality, the quantized data includes a snow melting index, for example, 0-100. The larger the number is, the less snow there is and the higher the snow melting degree is. In the embodiment of the present application, the collected images are pre-processed, including: delimiting the snow melting range, as shown in FIG. 3 and FIG. 4. For example, the heating device coverage range is taken as the snow melting range. Further, the pre-processing also includes: setting a turnout identification auxiliary line. Specifically, the steel rail of the heating area is recognized and the rail line is outlined as an auxiliary line to reduce the invalid image recognition range and improve the accuracy of model training and recognition. The recognized snow melting index is sent to the control terminal of the snow melting system for heating control and monitoring.

[0076] The control logic of the control system for real-time monitoring of the turnout snow state of the embodiment of the application can be realized based on the control method of the embodiment of the application, real-time monitoring of the snow state of each group of turnouts is realized, the snow state of each group of turnouts can be timely and accurately fed back to the indoor snow melting system control terminal, heating instructions can be timely issued by the system, the requirements of safe operation of the train in winter and snow weather and normal conversion of the turnout in winter and snow weather without influence of the snow and ice on the turnout can be met, the maintainability and safety are high, and the driving safety is ensured. Meanwhile, the snow state based on the visual judgment can also provide the snow melting effect evaluation after heating of the snow melting system, and can be used for assisting the system in judging whether the heating device fails or cannot achieve the heating effect, so that the site personnel can timely process.

[0077] The control method and system for real-time monitoring of the turnout snow state of the embodiment of the application propose a real-time monitoring scheme for the turnout snow state based on computer vision, the high timeliness and reliability of data access are ensured, the function of real-time monitoring of the snow state information of each group of turnouts required by the turnout snow melting system is realized, the readability and reliability of the image data are ensured through the computer vision (CV) image processing mode, and the intelligent degree of the system is improved.

[0078] Although the application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A control method for real-time monitoring of the state of snow accumulation at a turnout, characterized in that, The method comprises the following steps: real-time acquisition of switch region images; determination of snow data of the switch region by recognizing the switch region images; control of snow melting actions on the switch region according to the snow data; wherein the determination of the snow data of the switch region by recognizing the switch region images comprises: processing image information of each switch region into computer-readable quantization data through an image processing model, the quantization data comprising a snow melting index.

2. The control method of real-time monitoring of the snow state of a turnout according to claim 1, characterized in that, The real-time acquisition of switch region images comprises: acquisition of images of the switch region within a specified shooting angle range by an image acquisition device, including: first images satisfying a first shooting angle acquired in a direction parallel to the direction of the switch and second images satisfying a second shooting angle acquired in a direction not parallel to the direction of the switch; wherein the first shooting angle is smaller than the second shooting angle.

3. The control method of real-time monitoring of the snow state of a turnout according to claim 1, characterized in that, The first shooting angle is not less than 45°, and the second shooting angle is not less than 60°.

4. The control method for real-time monitoring of switch snow state according to claim 1, wherein the snow melting index is negatively correlated with the amount of snow on the switch.

5. The control method of real-time monitoring of the snow state of a turnout according to claim 4, characterized in that, Before recognizing the snow melting index, the acquired images are preprocessed, including: delimiting a snow melting range; and setting a switch recognition auxiliary line.

6. The control method for real-time monitoring of switch snow state according to claim 5, wherein the coverage range of a heating device of a snow melting system is taken as the snow melting range; the rails in the heating range are recognized and the rail lines are outlined as the auxiliary line.

7. The control method of real-time monitoring of the snow condition of a turnout according to any one of claims 4-6, characterized in that, The control of the snow melting actions on the switch region according to the snow data comprises: controlling the heating device of the snow melting system to take the temperature of the rail as the heating start and stop condition, and to take the snow melting data as the auxiliary start and stop condition of the heating device of the snow melting system.

8. The control method of real-time monitoring of the state of snow on a turnout according to claim 7, characterized in that, The control of the snow melting actions on the switch region according to the snow data comprises: when the snow melting index is lower than a specified threshold, triggering the early start or delayed stop of the heating device of the snow melting system.

9. The control method of real-time monitoring of the snow condition of a turnout according to any one of claims 1 to 6, characterized in that, The method further comprises: sending the snow melting data to the snow melting system, and monitoring the snow melting effect of the snow melting system according to the snow melting data.

10. A control system for real-time monitoring of snow conditions on a turnout, characterized in that The system comprises: an image acquisition device for real-time acquisition of switch region images; an image processing device for determination of snow data of the switch region by recognizing the switch region images, and control of snow melting actions on the switch region according to the snow data; wherein the determination of the snow data of the switch region by recognizing the switch region images comprises: processing image information of each switch region into computer-readable quantization data through an image processing model, the quantization data comprising a snow melting index.

11. The control system for real-time monitoring of switch snow state according to claim 10, wherein the image acquisition device can be used to acquire images of the switch region within a specified shooting angle range, including: first images satisfying a first shooting angle acquired in a direction parallel to the direction of the switch and second images satisfying a second shooting angle acquired in a direction not parallel to the direction of the switch; wherein the first shooting angle is not less than 45°, and the second shooting angle is not less than 60°.

12. The control system for real-time monitoring of switch snow state according to claim 10, wherein the snow melting index is negatively correlated with the amount of snow on the switch.

13. The control system for real-time monitoring of the state of snow on a turnout according to claim 12, characterized in that, The image processing device is used for pre-processing the collected image before identifying the snow index, and the pre-processing includes: Defining the snow melting range; setting the auxiliary line for identifying the turnout.

14. The control system for real-time monitoring of the state of snow on a turnout according to claim 13, characterized in that, The image processing device is used for: Taking the coverage range of the heating device of the snow melting system as the snow melting range; Identifying the steel rail of the heating area and outlining the rail line as the auxiliary line.

15. The control system for real-time monitoring of snow conditions on a turnout according to claim 10, characterized in that, The image processing device is used for: Controlling the heating device of the snow melting system to take the temperature of the steel rail as the heating start and stop condition, and to take the snow melting data as the auxiliary start and stop condition of the heating device of the snow melting system.

16. The control system for real-time monitoring of the state of snow on a turnout according to claim 15, characterized in that, The image processing device is used for: Triggering the early start or delayed stop of the heating device of the snow melting system when the snow index is lower than the specified threshold.

17. The control system for real-time monitoring of the turnout snow state according to any one of claims 10-16, characterized in that, The image processing device is further used for sending the snow melting data to the snow melting system for monitoring the snow melting effect of the snow melting system.

18. A control system for real-time monitoring of the snow condition of a turnout according to any one of claims 10-16, characterized in that, Further comprising a data transmission device, The data transmission device comprises one or more levels of data transmission modules, each level of data transmission module is used for receiving the image information of one or more image acquisition modules, and sending to the next level of data transmission module or the image processing device; The data transmission devices at different levels transmit data through optical fibers and / or networks.

19. The control system for real-time monitoring of the turnout snow state according to claim 18, characterized in that, The image acquisition device can share the power supply device and the installation support with the weather station; The data transmission device can be installed in each isolated transformer box or control cabinet and connected to the indoor terminal through the existing line path.

Images