Road surface ice melting system

Abstract

The invention relates to the technical field of road deicing, in particular to a road surface ice melting system. The road surface ice melting system comprises a temperature measuring optical fiber, a DTS host, a control end and a plurality of ice melting devices. The temperature measuring optical fibers are laid on two sides of the pavement base layer; the plurality of ice melting devices are arranged on the two sides of the road surface; the temperature measuring optical fiber is divided into a plurality of temperature measuring sections, and the plurality of temperature measuring sections are in one-to-one correspondence with the plurality of ice melting devices; the DTS host can obtain the temperature values detected by the multiple temperature measuring sections in real time, and when the temperature values, obtained by the DTS host, of one or more temperature measuring sections reach the icing temperature threshold value, the control end controls the ice melting device corresponding to the temperature measuring section reaching the icing temperature threshold value to be started, so that hot water is sprayed to the road surface through the spraying head. According to the road surface ice melting system, the problems that an existing system for monitoring road surface icing has great misjudgment performance, if an organic snow melting agent is sprayed, the manufacturing cost is too high, and spraying of inorganic snow melting agents causes corrosive damage to a road are solved.

Description

Technical Field

[0001] The present application relates to the technical field of road deicing, and in particular to a road surface deicing system. Background Art

[0002] In winter, road accidents are frequent due to icing, which has a great impact on road traffic, endangering driving safety and affecting people's travel. Many multi-vehicle collisions on icy and snowy roads have occurred across the country, causing serious casualties and property losses. Whenever it rains and snows, similar accidents will increase, and how to avoid such accidents has become a top priority.

[0003] In winter, the outdoor temperature is low at night and in the early morning, especially in dark and humid places, tunnel entrances, viaducts and other road sections, which are prone to ice. How to monitor the ice condition of road sections in real time in low temperature weather and how to melt the ice after monitoring the road surface ice become key issues. The invention patent with the main announcement number CN109887230A discloses a road ice warning and automatic disposal system control method. The method uses the weather forecast issued by the meteorological bureau to warn of road ice, and then estimates the time of road ice formation by monitoring the road section. If ice is formed, snow melting agent is sprayed. If there is no ice, the system may stop running and wait for the meteorological bureau to release the news. This invention provides an ice prediction model (i.e., how long it will take to freeze) and a calculation formula for the amount of snow melting agent sprayed, but the premise for the good operation of this system is the published weather forecast and a large amount of data monitored by the road surface. It depends on too many parameters, and the environmental parameters of different road sections are different. The system has a large misjudgment. Moreover, if an organic de-icing agent is sprayed, the cost is too high. Although an inorganic de-icing agent is sprayed at a low price, it is corrosive to the road and is not suitable for large-scale use. Summary of the invention

[0004] The purpose of the present application is to provide a road ice melting system, thereby solving the problems that the existing system for monitoring road icing has a large degree of misjudgment, the cost is too high if organic snow melting agents are sprayed, and the spraying of inorganic snow melting agents causes corrosive damage to the road.

[0005] According to the present application, a road surface ice melting system is provided, which includes a temperature measuring optical fiber, a DTS host, a control end and a plurality of ice melting devices; the temperature measuring optical fiber is laid on a road surface base and is located on both sides of the road surface base to detect the road surface temperature on the path in real time; a plurality of ice melting devices are arranged on both sides of the road surface, and the ice melting devices include a spray head; the temperature measuring optical fiber is divided into a plurality of temperature measuring sections, and the plurality of temperature measuring sections correspond to the plurality of ice melting devices one by one; the signal input end of the DTS host is connected to the temperature measuring optical fiber, and the signal output end of the DTS host is connected to the control end; the DTS host can obtain the temperature values ​​detected by the plurality of temperature measuring sections in real time, and when the temperature values ​​of one or more temperature measuring sections obtained by the DTS host reach the freezing temperature boundary, the DTS host sends alarm position information to the control end, and the control end controls the ice melting device corresponding to the temperature measuring section that reaches the freezing temperature boundary to be turned on according to the alarm position information, so as to spray hot water on the road surface through the spray head.

[0006] In any of the above technical solutions, further, the road surface ice melting system also includes a bridge; the bridge is arranged on both sides of the road surface base, and the temperature measuring optical fiber is laid on the bridge.

[0007] In any of the above technical solutions, further, the temperature measuring optical fiber is 30 cm away from the surface of the road surface.

[0008] In any of the above technical solutions, further, a plurality of ice melting devices are arranged at intervals on both sides of the road surface; the ice melting devices satisfy: C = 1 / 2 L, R≥C; wherein C is the distance between two adjacent ice melting devices, L is the width of the road surface, and R is the spraying radius of the spraying head.

[0009] In any of the above technical solutions, further, the road surface de-icing system also includes a hot water tank and a main valve, and the de-icing device also includes a start valve connected to the spray head; the hot water tank is connected to the plurality of start valves through the main valve, and when the temperature value of one or more of the temperature measuring sections obtained by the DTS host reaches the freezing temperature boundary, the control end controls the main valve and the start valve corresponding to the de-icing device to open, so as to spray hot water on the road surface through the spray head.

[0010] In any of the above technical solutions, further, there are three hot water tanks, namely the first hot water tank, the second hot water tank and the third hot water tank; the three hot water tanks are connected to the multiple start valves through the main valve; the temperature of the hot water in the first hot water tank is between 20°C and 30°C, the temperature of the hot water in the second hot water tank is between 45°C and 55°C, and the temperature of the hot water in the third hot water tank is between 55°C and 65°C; a temperature value less than or equal to 0°C and greater than -15°C is defined as a first-level warning threshold, a temperature value less than or equal to -15°C and greater than -40°C is defined as a second-level warning threshold, and a temperature value less than or equal to -40°C and greater than -50°C is defined as a third-level warning threshold; when the DTS host obtains When the temperature value of the temperature measuring section is within the first-level warning threshold, the control end controls the first hot water tank to be connected to the main valve, and controls the main valve and the starting valves corresponding to the ice-melting devices to be opened; when the temperature value of the temperature measuring section obtained by the DTS host is within the second-level warning threshold, the control end controls the second hot water tank to be connected to the main valve, and controls the main valve and the starting valves of all the ice-melting devices to be opened; when the temperature value of the temperature measuring section obtained by the DTS host is within the third-level warning threshold, the control end controls the third hot water tank to be connected to the main valve, and controls the main valve and the starting valves of all the ice-melting devices to be opened.

[0011] In any of the above technical solutions, further, the control end includes a display; the display is used to display the status of all the ice melting devices.

[0012] In any of the above technical solutions, further, if the temperature value of the current temperature measuring section obtained by the DTS host has reached the freezing temperature boundary, but the ice melting device corresponding to the current temperature measuring section is not turned on, the display shows that the current ice melting device is in a state of waiting for maintenance.

[0013] In any of the above technical solutions, further, the DTS host includes a processing module; the processing module is provided with the freezing temperature boundary value, and the processing module can compare the temperature values ​​detected by the multiple temperature measuring sections obtained by the DTS host with the freezing temperature boundary value, and when the temperature value of one or more of the temperature measuring sections reaches the freezing temperature boundary value, the processing module sends the alarm location information to the control end.

[0014] In any of the above technical solutions, further, the road surface ice melting system is applied to the road surface of a tunnel or a viaduct.

[0015] According to the above technical features, the beneficial effects of this application are:

[0016] The temperature measuring optical fiber of the present application detects the road surface temperature on the path in real time, and uses the detection of road surface temperature as an ice condensation warning. The DTS host of the present application can set the road surface ice condensation warning value. If the temperature measuring optical fiber detects that the temperature along the road surface is lower than the set freezing temperature limit, an alarm message is triggered. The control end controls the opening of the ice melting device corresponding to the temperature measuring section that reaches the freezing temperature limit according to the alarm position information, so as to spray hot water on the road surface through the spray head.

[0017] As described above, when the road surface temperature detected by the road surface melting system of the present application is lower than the freezing point, the ice melting device is automatically turned on to melt the iced area simultaneously. The ice melting devices at various locations can be turned on and off at will without interfering with each other. The ice melting is convenient and fast, which can greatly solve the problem of ice condensation on the road surface. In addition, the present application uses hot water to melt the ice on the road surface. Compared with traditional manual deicing and deicing using snow melting agents, it not only improves the efficiency of deicing work and reduces accidents, but also has no pollution to the road surface and the environment. It is an efficient and environmentally friendly deicing method.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram showing the structural arrangement of a road ice melting system according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram showing the principle of a road ice melting system according to an embodiment of the present application;

[0022] Figure 3 A spraying schematic diagram of an ice melting device according to an embodiment of the present application is shown.

[0023] Icon: 100-temperature measurement optical fiber; 200-DTS host; 210-GPIB interface; 300-control end; 400-ice melting device; 500-hot water tank; 600-main valve. DETAILED DESCRIPTION

[0024] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0025] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0026] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0028] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0029] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0030] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0031] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0032] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0033] The present application provides a road ice melting system, thereby solving the problems that the existing system for monitoring road ice formation has a large misjudgment rate, the cost is too high if organic snow melting agents are sprayed, and the spraying of inorganic snow melting agents causes corrosive damage to the road.

[0034] Refer to the following Figures 1 to 3 A road ice melting system according to some embodiments of the present application is described.

[0035] like Figure 1 and Figure 2As shown, the road ice melting system of the present application includes a temperature measuring optical fiber 100, a DTS host 200, a control terminal 300 and a plurality of ice melting devices 400. Among them, the temperature measuring optical fiber 100 is laid on the road base and is located on both sides of the road base to detect the road surface temperature on the path in real time; multiple ice melting devices 400 are set on both sides of the road surface, and the ice melting devices 400 include spray heads; the temperature measuring optical fiber 100 is divided into multiple temperature measuring sections, and the multiple temperature measuring sections correspond to the multiple ice melting devices 400 one by one; the signal input end of the DTS host 200 is connected to the temperature measuring optical fiber 100, and the signal output end of the DTS host 200 is connected to the control end 300; the DTS host 200 can obtain the temperature values ​​detected by the multiple temperature measuring sections in real time. When the temperature value of one or more temperature measuring sections obtained by the DTS host 200 reaches the freezing temperature boundary, the DTS host 200 sends the alarm position information to the control end 300, and the control end 300 controls the ice melting device 400 corresponding to the temperature measuring section that reaches the freezing temperature boundary to open according to the alarm position information, so as to spray hot water on the road surface through the spray head.

[0036] That is to say, the temperature measuring optical fiber 100 of the present application detects the road surface temperature on the path in real time, and uses the detection of the road surface temperature as an ice condensation warning. The DTS host 200 of the present application can set the road surface ice condensation warning value. If the temperature measuring optical fiber 100 detects that the temperature along the road surface is lower than the set freezing temperature threshold, an alarm message is triggered, and the control end 300 controls the ice melting device 400 corresponding to the temperature measuring section that reaches the freezing temperature threshold to start according to the alarm position information, so as to spray hot water on the road surface through the spray head.

[0037] As described above, when the road surface temperature detected by the road surface melting system of the present application is lower than the freezing point, the ice melting device 400 is automatically turned on to melt the iced area simultaneously. The ice melting devices 400 at various locations can be turned on and off at will without interfering with each other. The ice melting is convenient and fast, which can greatly solve the problem of ice condensation on the road surface. In addition, the present application uses hot water to melt the ice on the road surface. Compared with traditional manual deicing and deicing using snow melting agents, it not only improves the deicing efficiency and reduces accidents, but also does not pollute the road surface and the environment. It is an efficient and environmentally friendly deicing method.

[0038] It should be noted here that the temperature measuring optical fiber 100 of the present application adopts distributed optical fiber, which mainly monitors the road surface temperature based on the distributed optical fiber of Raman temperature measurement. According to the road surface freezing point of 0°C, the road surface temperature value is used as the system control point. If the monitored temperature is lower than the freezing point, the snow melting device is automatically turned on to melt the snow and ice in the iced area simultaneously.

[0039] When the distributed optical fiber is installed, the distributed optical fiber is arranged on both sides of the road base, so that the temperature of the road surface on the paving path can be detected in real time. The signal input end of the DTS host 200 is connected to one end of the temperature measuring optical fiber 100, and the signal output end of the DTS host 200 is connected to the control end 300 through the GPIB interface 210. Here, the temperature measuring optical fiber 100 adopts a multimode optical fiber, and the arrangement should be consistent with the direction of the road surface, and there should be no redundancy. If the length of one temperature measuring optical fiber 100 is not enough, the joints of multiple temperature measuring optical fibers 100 are fused by a fusion splicer.

[0040] The DTS host 200 can obtain the temperature values ​​of multiple temperature measuring sections in real time and display the temperature values ​​detected by multiple temperature measuring sections in real time in the form of curves, and each temperature measuring section corresponds to an ice melting device 400. When the temperature value detected by a certain temperature measuring section reaches the freezing temperature boundary (indicating that the surface temperature of a certain section of road is lower than the freezing temperature boundary 0°C), the DTS host 200 will transmit the alarm position to the control terminal 300, and the control terminal 300 will issue instructions to the corresponding ice melting device 400 according to the alarm position, thereby executing the work of dealing with ice condensation on the road surface.

[0041] It should also be noted that the temperature measuring optical fiber 100 of the present application is arranged on both sides of the road surface base, and the temperature measuring optical fiber 100 indirectly detects the road surface temperature by detecting the surrounding temperature.

[0042] In the embodiment of the present application, bridges are provided on both sides of the road base, and the temperature measuring optical fiber 100 is laid on the bridges. The bridges not only facilitate the installation of the temperature measuring optical fiber 100, but also protect the temperature measuring optical fiber 100.

[0043] In the embodiment of the present application, the temperature measuring optical fiber 100 is 30 cm away from the surface of the road surface. If the distance exceeds 30 cm, the detection effect is poor, and if the distance is less than 30 cm, the temperature measuring optical fiber 100 is easily damaged.

[0044] In addition, since the temperature measuring optical fiber 100 is laid in the bridge frame and is not directly in contact with the road surface, there is a slight deviation between the road surface temperature and the detection temperature, so the set freezing temperature limit should be slightly higher than 0°C.

[0045] As an optimization, drainage ditches are arranged on both sides of the road surface, and the installation position of the temperature measuring optical fiber 100 should be higher than the drainage ditches.

[0046] In the embodiments of the present application, Figure 1 and Figure 3 As shown, a plurality of ice melting devices 400 are arranged at intervals on both sides of the road surface; the ice melting devices 400 satisfy: C = 1 / 2 L, R≥C; wherein C is the distance between two adjacent ice melting devices 400, L is the width of the road surface, and R is the spraying radius of the spraying head.

[0047] Because the ice melting device 400 achieves the ice melting effect by spraying hot water on the road surface, the spraying radius should not be less than the spacing distance of the ice melting devices 400. For example, the spacing between the ice melting devices 400 on both sides of a two-lane road surface (width 6m) is 3m, and the spraying radius is 3m. The specific spacing distance depends on the actual road surface width. Preferably, C = 1 / 2 L, R= 1 / 2 L.

[0048] In the embodiments of the present application, Figure 2 As shown, the road ice melting system also includes a hot water tank 500 and a main valve 600. Among them, each ice melting device 400 is connected in parallel, and each ice melting device 400 also includes a start valve connected to a spray head. The hot water tank 500 is connected to multiple start valves through the main valve 600. When the temperature value of a certain temperature measurement section obtained by the DTS host 200 reaches the freezing temperature boundary, the alarm position information is sent to the control end 300, and the control end 300 controls the main valve 600 and the corresponding start valve to open. In this way, the ice melting device 400 at the ice condensation position starts to operate, and the spray head continuously sprays hot water on the road surface to de-ice the road surface.

[0049] In the embodiment of the present application, the control terminal 300 includes a display, which is used to display the status of all ice melting devices 400 for real-time observation by the staff. In addition, if the ice melting device 400 has a line fault or damage, it can be repaired in time. Specifically, when the temperature value of the current temperature measurement section obtained by the DTS host 200 has reached the freezing temperature limit, but the ice melting device 400 corresponding to the current temperature measurement section is not turned on, the display shows that the ice melting device 400 is in a state of waiting for maintenance.

[0050] As described above, the various ice-melting devices 400 of the present application are connected in parallel and are motor-controlled, so that the various workstations do not affect each other, and the operation information of each ice-melting device 400 can be obtained in time, which is convenient for timely maintenance.

[0051] In an embodiment of the present application, the road surface ice melting system of the present application can also spray hot water of different temperatures according to different road surface temperatures.

[0052] Specifically, the road icing warning signal level issued by the traffic control department and the Mohs hardness of ice are used as references, and the specific value range is as follows:

[0053] Warning level <![CDATA[Road surface icing temperature T r / ℃]]> <![CDATA[Hot water temperature range T w / ℃]]> Level 1 warning <![CDATA[-15<T r ≤0]]> <![CDATA[20≤T w ≤30]]> Second level warning <![CDATA[-40<T r ≤-15]]> <![CDATA[45≤T w ≤55]]> Level 3 warning <![CDATA[-50<T r ≤-40]]> <![CDATA[55≤T w ≤65]]>

[0054] According to the value range in the above table, three hot water tanks 500 of the present application can be provided, namely a first hot water tank, a second hot water tank and a third hot water tank; the three hot water tanks are all connected to multiple starting valves through a main valve 600.

[0055] The temperature of hot water in the first hot water tank is between 20°C and 30°C, the temperature of hot water in the second hot water tank is between 45°C and 55°C, and the temperature of hot water in the third hot water tank is between 55°C and 65°C. The temperature value is defined as 0°C or less and greater than -15°C as the first-level warning threshold, the temperature value is defined as -15°C or less and greater than -40°C as the second-level warning threshold, and the temperature value is defined as -40°C or less and greater than -50°C as the third-level warning threshold.

[0056] As an optimization, the temperature range of the melting hot water is set according to the local historical winter temperature. If it is not within the above range, the lowest temperature that may occur in the local area can be used as a further warning. In principle, the range is higher than the local lowest temperature.

[0057] When the temperature value of the temperature measuring section obtained by the DTS host 200 is within the first-level warning threshold, the DTS host 200 sends the alarm position information and the temperature value information to the control end 300. According to the alarm position information and the temperature value information, the control end 300 controls the first hot water tank to be connected with the main valve 600, and controls the main valve 600 and the start valve of the corresponding ice melting device 400 to be opened; similarly, when the temperature value of the temperature measuring section obtained by the DTS host 200 is within the second-level warning threshold, the DTS host 200 sends the alarm position information and the temperature value information to the control end 300, and the control end 300 controls the second hot water tank to be connected with the main valve 600, and controls the main valve 600 and the start valves of all ice melting devices 400 to be opened. When the temperature value of the temperature measuring section obtained by the DTS host 200 is within the third-level warning threshold, the DTS host 200 sends the alarm position information and the temperature value information to the control end 300. The control end 300 controls the third hot water tank to be connected with the main valve 600, and controls the main valve 600 and the start valves of all ice melting devices 400 to open.

[0058] In an embodiment of the present application, the DTS host 200 includes a processing module, which is provided with a freezing temperature boundary. The processing module can compare the temperature values ​​detected by multiple temperature measuring sections obtained by the DTS host 200 with the freezing temperature boundary. When the temperature value of one or more temperature measuring sections reaches the freezing temperature boundary, the processing module sends the alarm location information and temperature value information to the control end 300.

[0059] As an example, the processing module may be CSM software installed on the DTS host 200. The CSM software is provided with an ice temperature threshold, which may be set according to the temperature threshold when the road surface is frozen. When the temperature value detected by a certain temperature measurement section reaches the ice temperature threshold (indicating that the surface temperature of a certain section of the road is lower than the ice temperature threshold of 0°C), the CSM software installed on the DTS host 200 automatically triggers the alarm position information and outputs the alarm position information and the temperature value information to the control terminal 300.

[0060] It should be noted here that CSM software itself is a prior art. CSM software is system monitoring software, suitable for temperature monitoring system, connected to DTS host for data acquisition, can record and analyze temperature data, and all required parameters can be monitored. In this application, CSM software mainly performs temperature data analysis and sets the freezing temperature threshold to realize the alarm function.

[0061] The road ice melting system of this application operates according to the following process:

[0062] In stage 1, when the temperature value detected by a certain temperature measurement section reaches the freezing temperature limit (indicating that the surface temperature of a certain section of road is lower than the freezing temperature limit of 0°C), the CSM software installed on the DTS host 200 automatically triggers the alarm position information and outputs the alarm position information and temperature value information to the control terminal 300.

[0063] In stage 2, the control terminal 300 is running; the control terminal 300 opens the start valve of the preset hot water pipe and the ice melting device 400 at the alarm point by identifying the alarm position information and the temperature value information.

[0064] Phase 3, ice condensation treatment; the ice melting device 400 at the ice condensation location starts to operate, continuously spraying hot water on the road surface to de-ice the road surface.

[0065] Stage 4, deicing feedback: When the temperature of all temperature measurement sections is above 0°C, deicing is completed, the deicing device 400 and the control terminal 300 are closed, and the road deicing system is online. If the road surface temperature is detected to be lower than the freezing point, the system will run again, repeating stage 1 → stage 2 → stage 3 → stage 4.

[0066] The specific implementation steps of the road ice melting system of this application are as follows:

[0067] Step 1, preparation work; prefabrication and installation of the ice melting device 400.

[0068] Step 2, arranging the temperature measuring optical fiber 100; installing a bridge frame at the side edge of the road base, and laying the temperature measuring optical fiber 100 in the bridge frame.

[0069] Step 3, the DTS host 200, the main valve 600, and the start valve that can set the freezing temperature boundary are connected to the control end 300. The temperature abnormality is monitored by the DTS host 200, and the alarm position information and temperature value information are output to the control end 300. After receiving the information, the control end 300 introduces hot water of the corresponding temperature and opens the start valve of the ice melting device 400 at the ice condensation position.

[0070] Step 4, monitoring operation; the DTS host 200 monitors the road surface temperature in real time through the temperature measuring optical fiber 100 and sets the freezing temperature threshold.

[0071] Step 5, early warning processing; when the DTS host 200 detects that the road surface temperature is lower than or equal to the freezing temperature limit, the ice melting device 400 at the ice condensation position starts to operate, continuously spraying hot water on the road surface to de-ice the road surface.

[0072] Step 6, dynamic operation of the system; after ice melting, when the DTS host 200 detects that the road surface temperature is higher than the freezing temperature limit, the main valve 600 and the start valve are closed, the system is in a dormant state, and the temperature measuring optical fiber 100 continues to monitor. If the temperature is detected to be less than or equal to the freezing temperature limit, the above steps are repeated until the ice melting is completed.

[0073] Step 7, regular system maintenance; the operation status of each work surface can be checked through the DTS system interface and the display of the control terminal 300. If a fault occurs, maintenance can be carried out in time.

[0074] In daily operation, the road ice melting system is in standby mode, and the temperature measuring optical fiber monitors the road surface temperature in real time. If the road surface temperature is lower than the set temperature control limit (freezing temperature threshold), the system starts to run. The system operation process is as described in steps 4 to 8 above, and the process is repeated until the road surface ice melting is completed. In winter, due to the influence of wind, snow and low temperature, the road surface is frozen, which endangers driving safety. The present invention can effectively solve the above problems. This system does not require manual operation and can run for a long time.

[0075] Preferably, the temperature measuring optical fiber continuously monitors the road surface, especially in the morning and evening time periods.

[0076] As an optimization, the road ice melting system is suitable for low temperature conditions in winter and can effectively melt the ice on the road surface. It can be applied to roads in different environments such as tunnels and viaducts.

[0077] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A road ice melting system, characterized in that: The road ice melting system includes a temperature measuring optical fiber, a DTS host, a control terminal and a plurality of ice melting devices; The temperature measuring optical fiber is laid on the road surface base and is located on both sides of the road surface base to perform real-time detection of the road surface temperature on the path; A plurality of ice-melting devices are arranged on both sides of the road surface, and the ice-melting devices include a spray head; the temperature measuring optical fiber is divided into a plurality of temperature measuring sections, and the plurality of temperature measuring sections correspond to the plurality of ice-melting devices one by one; The signal input end of the DTS host is connected to the temperature measuring optical fiber, and the signal output end of the DTS host is connected to the control end; the DTS host can obtain the temperature values ​​detected by multiple temperature measuring sections in real time. When the temperature value of one or more temperature measuring sections obtained by the DTS host reaches the freezing temperature boundary, the DTS host sends alarm position information to the control end, and the control end controls the ice melting device corresponding to the temperature measuring section that reaches the freezing temperature boundary to start according to the alarm position information, so as to spray hot water on the road surface through the spray head.

2. The road ice melting system according to claim 1, characterized in that: The road ice melting system also includes a bridge frame; The bridge frames are arranged on both sides of the road base, and the temperature measuring optical fibers are laid on the bridge frames.

3. The road ice melting system according to claim 2, characterized in that: The temperature measuring optical fiber is 30 cm away from the surface of the road surface.

4. The road ice melting system according to claim 1, characterized in that: A plurality of ice melting devices are arranged at intervals on both sides of the road surface; The ice melting device satisfies: C = 1 / 2L, R ≥ C; Wherein, C is the distance between two adjacent ice melting devices, L is the width of the road surface, and R is the spraying radius of the spraying head.

5. The road ice melting system according to claim 1, characterized in that: The road surface ice melting system also includes a hot water tank and a main valve, and the ice melting device also includes a start valve connected to the spray head; The hot water tank is connected to the plurality of start valves through the main valve. When the temperature value of one or more of the temperature measuring sections obtained by the DTS host reaches the freezing temperature boundary, the control end controls the main valve and the start valve corresponding to the ice melting device to open, so as to spray hot water on the road surface through the spray head.

6. The road ice melting system according to claim 5, characterized in that: There are three hot water tanks, namely a first hot water tank, a second hot water tank and a third hot water tank; the three hot water tanks are all connected to the plurality of start valves through the main valve; The temperature of the hot water in the first hot water tank is between 20°C and 30°C, the temperature of the hot water in the second hot water tank is between 45°C and 55°C, and the temperature of the hot water in the third hot water tank is between 55°C and 65°C; Define the temperature value less than or equal to 0℃ and greater than -15℃ as the first-level warning threshold, define the temperature value less than or equal to -15℃ and greater than -40℃ as the second-level warning threshold, and define the temperature value less than or equal to -40℃ and greater than -50℃ as the third-level warning threshold; When the temperature value of the temperature measuring section obtained by the DTS host is within the first-level warning threshold, the control end controls the first hot water tank to be connected to the main valve, and controls the main valve and the start valve corresponding to the ice melting device to open; When the temperature value of the temperature measuring section obtained by the DTS host is within the second-level warning threshold, the control end controls the second hot water tank to be connected to the main valve, and controls the main valve and the start valves of all the ice melting devices to open; When the temperature value of the temperature measuring section obtained by the DTS host is within the third-level warning threshold, the control end controls the third hot water tank to be connected to the main valve, and controls the main valve and the start valves of all the ice melting devices to open.

7. The road ice melting system according to claim 1, characterized in that: The control end comprises a display; the display is used to display the status of all the ice melting devices.

8. The road ice melting system according to claim 7, characterized in that: If the temperature value of the current temperature measuring section obtained by the DTS host has reached the freezing temperature boundary, but the ice melting device corresponding to the current temperature measuring section is not turned on, the display will show that the current ice melting device is in a maintenance waiting state.

9. The road ice melting system according to any one of claims 1 to 8, characterized in that: The DTS host includes a processing module; The processing module is provided with the freezing temperature boundary value. The processing module can compare the temperature values ​​detected by the multiple temperature measuring sections obtained by the DTS host with the freezing temperature boundary value. When the temperature value of one or more of the temperature measuring sections reaches the freezing temperature boundary value, the processing module sends the alarm location information to the control end.

10. The road ice melting system according to any one of claims 1 to 8, characterized in that: The road surface ice melting system is applied to the road surface of a tunnel or an elevated bridge.

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