CN112482128A - Road surface self-snow-melting system and method with environment perception - Google Patents
Road surface self-snow-melting system and method with environment perception Download PDFInfo
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- 238000002844 melting Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008447 perception Effects 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000009825 accumulation Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000007613 environmental effect Effects 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000010410 layer Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
- E01C11/265—Embedded electrical heating elements ; Mounting thereof
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Abstract
本发明公开了一种具备环境感知的路面自融雪系统及方法，该装置包括：沿全路段均匀布设的多个自融雪单元、多个气象站和管控中心，每个自融雪单元包含埋设于路面下的发热电缆、温湿度传感器、数据采集器和电源开关；温湿度传感器设置于路面表层；温湿度传感器的信号输出端与数据采集器连接；气象站设置于路边，用于获取若干个自融雪单元的实时天气信息；数据采集器和气象站分别通过无线传输模块将各自的信息输送至管控中心。本发明能够提前预测可能结冰单元和积雪单元，从而避免路面结冰和积雪现象的出现，提高路面自融雪效率，保证交通安全性；同时可以实现全路线监测，便于宏观管控和道路维护。
The invention discloses a road self-snow melting system and method with environment perception. The device comprises: a plurality of self-snow melting units, a plurality of weather stations and a control center evenly arranged along the whole road section, The heating cable, temperature and humidity sensor, data collector and power switch are installed below; the temperature and humidity sensor is set on the surface of the road surface; the signal output end of the temperature and humidity sensor is connected to the data collector; the weather station is set on the roadside, used to obtain a number of automatic The real-time weather information of the snow melting unit; the data collector and the weather station transmit their respective information to the control center through the wireless transmission module. The present invention can predict possible icing units and snow accumulation units in advance, thereby avoiding the occurrence of road icing and snow accumulation, improving the efficiency of self-snow melting on the road surface, and ensuring traffic safety; at the same time, it can realize the monitoring of the whole route, which is convenient for macro management and control and road maintenance. .
Description
Technical Field
The invention relates to the technical field of pavement snow melting, in particular to a pavement self-snow melting system and method with environment perception.
Background
The existence of the ice and snow on the road surface in winter is a main cause of traffic accidents. Therefore, many studies on how to remove the ice and snow on the road have been conducted at home and abroad. At present, snow removal and ice removal methods in winter mainly comprise two types, namely a mechanical removal method and a fusion method. The mechanical clearing method is usually finished after snow, and the traffic is obstructed in the operation; the influence of ice and snow on traffic cannot be eliminated, and the method belongs to a later-stage remediation method; the melting method mainly focuses on a hot melting method, and mainly comprises cable heating, conductive concrete or asphalt, a circulating hot fluid method and the like; however, in most cases, the ice and snow are formed on the road surface and then thermally melted.
The existing effective and actually applied heating cable snow removal for melting snow and ice still has the following problems in the actual use process: the road ice and snow conditions of the whole route cannot be accurately sensed, and the sensor layout on the whole route scale is not practical. In addition, monitoring feedback and comprehensive management during operation of the self-snow-melting road surface are lacked, thereby causing energy waste or traffic accidents.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a road surface self-snow-melting system and method with environment perception, which can predict a possible icing unit and an accumulated snow unit in advance, thereby avoiding the phenomena of road surface icing and accumulated snow, improving the road surface self-snow-melting efficiency and ensuring the traffic safety; meanwhile, full-route monitoring can be realized, and macroscopic management and control and road maintenance are facilitated.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
The first technical scheme is as follows:
a road surface self-snow-melting system with environment perception comprises: the system comprises a plurality of self-snow-melting units, a plurality of meteorological stations and a control center, wherein the self-snow-melting units, the meteorological stations and the control center are uniformly distributed along the whole road section, and each self-snow-melting unit comprises a heating cable, a temperature and humidity sensor, a data collector and a power switch which are buried under the road surface; the temperature and humidity sensor is arranged on the surface layer of the road surface and used for sensing the temperature and the humidity of the road surface in real time; the signal output end of the temperature and humidity sensor is connected with the data acquisition unit;
the weather station is arranged on the roadside and used for acquiring real-time weather information of the self-snow-melting units; the data acquisition unit and the meteorological station respectively transmit respective information to the control center through the wireless transmission module; the management and control center predicts whether the road section corresponding to the current self-snow-melting unit has the risk of icing or snow accumulation according to the received data, judges whether the road surface meets the safety condition or not, and controls the corresponding power switch to be turned on or turned off through the wireless transmission module;
wherein the weather information includes rainfall, snowfall, relative humidity and air temperature.
The first technical scheme of the invention has the characteristics and further improvement that:
furthermore, the distance between the road sections of the adjacent self-snow-melting units is 30-70 m.
Further, the distance of the road sections between the adjacent weather stations is 30-50 km.
Further, each weather station also transmits the respective IP address to the control center.
Further, self-snow-melting units are separately arranged at the intersections, the tunnels and the bridges.
The second technical scheme is as follows:
a road surface self-snow-melting method comprises the following steps:
the weather information comprises rainfall, snowfall, relative humidity and air temperature;
The second technical scheme of the invention is characterized by further improvement:
further, the matching of the weather information of each weather station with the corresponding self-snow-melting unit specifically includes: and determining the self-snow-melting units monitored by each weather station according to the IP address of the weather station, and further distributing the weather data of the weather station to the corresponding self-snow-melting units.
Further, the determining of the self-snow-melting unit monitored by each weather station according to the IP address of each weather station specifically includes: the temperature and humidity information of each self-snow-melting unit is provided with a position number, the IP address of each weather station and the position number of the self-snow-melting unit are paired in advance in a one-to-many mode, and if the current two data are paired successfully, the weather station data are distributed to the self-snow-melting unit.
Further, the determining whether the road section corresponding to the self-snow-melting unit has the risk of icing or snow accumulation specifically includes: judging whether the self-snow-melting unit is:
(a) the rainfall is more than 0, and the temperature is lower than 0 ℃;
(b) the snowfall amount is more than 0;
(c) the dew point temperature is less than 0 ℃, and when the current air temperature is less than or equal to the dew point;
and if any one of the conditions is met, judging that the risk of icing or snow accumulation exists.
Further, the safety condition is that the following conditions are simultaneously satisfied:
(a) the temperature of the pavement is more than 0 ℃, and the humidity of the pavement is equal to 0;
(b) the snowfall or rain increase is 0.
Compared with the prior art, the invention has the beneficial effects that:
(1) the method can predict the risk of icing or snow accumulation in advance, and inhibit the formation of an ice layer or snow accumulation before icing, thereby fundamentally solving the adverse effect of icing on road traffic, and effectively reducing the occurrence rate of road accidents caused by icing on the road surface in winter; compared with the heating cable which is started after the ice layer appears, the formation of the ice layer can be prevented at the initial stage, and the vacuum period from starting to heating and then transferring heat to the road surface of the heating cable is effectively shortened.
(2) According to the invention, the whole road is subjected to subsection management and control, and the safety condition is set, so that the small road section can be timely and effectively managed and controlled, and the waste of energy and the reduction of the service performance of the road surface caused by continuous high temperature in the road surface are effectively prevented.
(3) The invention divides the whole route into a plurality of self-snow-melting units, and then the plurality of self-snow-melting units correspond to one meteorological station, so that the monitoring accuracy and the practicability are combined, the economy and the effectiveness are realized, and meanwhile, the detection of the whole route can provide reference for the maintenance of the road surface.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic diagram of the results of a road surface self-snow-melting system with environmental awareness according to the present invention;
fig. 2 is a schematic flow chart of the implementation of the road surface snow self-melting method of the invention.
In the above figures, 1 is a self-snow-melting unit; 101 a heating cable; 102 a temperature and humidity sensor; 103 data acquisition unit; 104 a power switch; 105 a wireless transmission module; 2, a weather station; and 3, managing and controlling the center.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a road surface self-snow-melting system with environmental perception, comprising: the system comprises a plurality of self-snow-melting units, a plurality of meteorological stations and a control center, wherein the self-snow-melting units, the meteorological stations and the control center are uniformly distributed along the whole road section, and each self-snow-melting unit comprises a heating cable, a temperature and humidity sensor, a data collector and a power switch which are buried under the road surface; the temperature and humidity sensor is arranged on the surface layer of the road surface and used for sensing the temperature and the humidity of the road surface in real time; the signal output end of the temperature and humidity sensor is connected with the data acquisition unit;
the weather station is arranged on the roadside and used for acquiring real-time weather information of the self-snow-melting units; the data acquisition unit and the meteorological station respectively transmit respective information to the control center through the wireless transmission module; the management and control center predicts whether the road section corresponding to the current self-snow-melting unit has the risk of icing or snow accumulation according to the received data, judges whether the road surface meets the safety condition or not, and controls the corresponding power switch to be turned on or turned off through the wireless transmission module;
wherein the weather information includes rainfall, snowfall, relative humidity and air temperature.
Furthermore, the distance of the road sections between the adjacent self-snow-melting units is 30-70 m, and the distance of the road sections between the adjacent weather stations is 30-50 km.
Further, each weather station also transmits the respective IP address to the control center.
In the invention, self-snow-melting units are independently arranged at intersections, tunnels and bridges, and are uniformly distributed at intervals of 30-70 m at other normal road sections. The heating cable is arranged in a pavement layer of a pavement structure, namely in the uppermost layer structure of the pavement; the temperature and humidity sensor is embedded in the road surface and is flush with the road surface; one weather station is responsible for weather monitoring in the range of 30-50km around it. The arrangement mode of the heating cable can be a circuitous type or a spiral type or a mixed type of the circuitous type and the spiral type, and the specific arrangement method is selected according to the actual needs of engineering. The heating cables of the self-snow-melting units are connected in parallel, and each self-snow-melting unit is provided with a power switch.
Example 2:
a road surface self-snow-melting method comprises the following steps:
the weather information comprises rainfall, snowfall, relative humidity and air temperature;
In this embodiment, the matching of the weather information of each weather station with the corresponding self-snow-melting unit specifically includes: and determining the self-snow-melting units monitored by each weather station according to the IP address of the weather station, and further distributing the weather data of the weather station to the corresponding self-snow-melting units.
The self-snow-melting unit which is monitored according to the IP address of each weather station is determined, and the method specifically comprises the following steps: the temperature and humidity information of each self-snow-melting unit is provided with a position number, the IP address of each weather station and the position number of the self-snow-melting unit are paired in advance in a one-to-many mode, and if the current two data are paired successfully, the weather station data are distributed to the self-snow-melting unit.
The method for judging whether the road section corresponding to the self-snow-melting unit has the risk of icing or snow accumulation specifically comprises the following steps: judging whether the self-snow-melting unit is:
(a) the rainfall is more than 0, and the temperature is lower than 0 ℃;
(b) the snowfall amount is more than 0;
(c) the dew point temperature is less than 0 ℃, and the current air temperature is less than or equal to the dew point temperature;
and if any one of the conditions is met, judging that the risk of icing or snow accumulation exists.
In the above conditions, the dew point temperature is calculated by the weather information, and the dew point temperature calculation formula is:
in the formula: e represents the water vapour pressure in units of hectopascal (hPa), E0Representing the saturated water vapor pressure at 0 ℃ as 6.1078hPa, taking a as a coefficient, and taking 7.69; b is coefficient, 243.92 is taken;
the water vapor pressure is calculated by the relative humidity, and the calculation formula is as follows:
e＝U×Ew/100
in the formula: u represents relative humidity,%; ewThe saturated water vapor pressure of the corresponding pure water level at the same temperature is expressed in unit of hectopascal (hPa).
Further, the safety condition of the present invention is to satisfy the following conditions at the same time:
(a) the temperature of the pavement is more than 0 ℃, and the humidity of the pavement is equal to 0;
(b) the snowfall or rain increase is 0.
The above is a condition for closing the heating cable.
When the snow is snowed in winter, the meteorological station monitors the snowing, and the control center starts the heating cable corresponding to the self-snow-melting unit, so that the snowing on the road surface cannot be accumulated to keep the road surface dry. When raining in winter, the meteorological station monitors precipitation, and if the temperature of the road surface is less than 0 ℃, the heating cable is started to prevent the ice layer from forming and keep the road surface dry. And for the self-snow-melting unit which starts the heating cable, when the self-snow-melting unit meets the safety condition, the corresponding heating cable power switch is closed, so that the energy waste and the reduction of the pavement service performance are avoided.
Although the present invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A road surface self-snow-melting system with environment perception is characterized by comprising: the system comprises a plurality of self-snow-melting units, a plurality of meteorological stations and a control center which are uniformly distributed along the whole road section; each self-snow-melting unit comprises a heating cable, a temperature and humidity sensor, a data collector and a power switch, wherein the heating cable, the temperature and humidity sensor, the data collector and the power switch are buried under a road surface;
the temperature and humidity sensor is arranged on the surface layer of the road surface and used for sensing the temperature and the humidity of the road surface in real time; the signal output end of the temperature and humidity sensor is connected with the data acquisition unit; the weather station is arranged on the roadside and used for acquiring real-time weather information of the self-snow-melting units; the data acquisition unit and the meteorological station respectively transmit respective information to the control center through the wireless transmission module; the management and control center predicts whether the road section corresponding to the current self-snow-melting unit has the risk of icing or snow accumulation according to the received data, judges whether the road surface meets the safety condition or not, and controls the corresponding power switch to be turned on or turned off through the wireless transmission module;
wherein the weather information includes rainfall, snowfall, relative humidity and air temperature.
2. The self-snow-melting system with environmental awareness for road surfaces as claimed in claim 1, wherein the distance between adjacent self-snow-melting units is 30-70 m.
3. The self-snow-melting system with environmental perception according to claim 2, wherein the distance of the road between adjacent weather stations is 30-50 km.
4. The system of claim 1, wherein each weather station further transmits its own IP address to the control center.
5. The self-snow-melting system with the environment perception function for the road surface as claimed in claim 1, wherein the self-snow-melting units are arranged at intersections, tunnels and bridges independently.
6. A road surface self-snow-melting method is characterized by comprising the following steps:
step 1, each temperature and humidity sensor acquires road surface temperature and humidity information of a corresponding road section in real time, and a weather station acquires local weather information in real time;
the weather information comprises rainfall, snowfall, relative humidity and air temperature;
step 2, acquiring the IP address of each weather station, matching the weather information of each weather station with the corresponding self-snow-melting unit according to the IP address, and taking the weather information as the weather information of the self-snow-melting unit; judging whether the road section corresponding to each self-snow-melting unit has the risk of icing or snow accumulation according to the weather information and the pavement temperature and humidity information of each self-snow-melting unit, and if so, starting a corresponding power switch; if the heating cable of the self-snow-melting unit is in a heating state, further judging whether the road section corresponding to the self-snow-melting unit meets the safety condition, and if so, closing the corresponding power switch.
7. The method for road surface self-snow melting according to claim 6, wherein the weather information of each weather station is matched with the corresponding self-snow melting unit, specifically: and determining the self-snow-melting units monitored by each weather station according to the IP address of the weather station, and further distributing the weather data of the weather station to the corresponding self-snow-melting units.
8. The method for self-melting snow on road surfaces according to claim 7, wherein the self-melting snow unit monitored by each weather station is determined according to the IP address of the weather station, and specifically comprises the following steps: the temperature and humidity information of each self-snow-melting unit is provided with a position number, the IP address of each weather station and the position number of the self-snow-melting unit are paired in advance in a one-to-many mode, and if the current two data are paired successfully, the weather station data are distributed to the self-snow-melting unit.
9. The method for automatically melting snow on a road surface according to claim 6, wherein the determining whether the road section corresponding to the self-snow-melting unit has a risk of icing or accumulating snow specifically comprises: judging whether the self-snow-melting unit meets the following conditions:
(a) the rainfall is more than 0, and the temperature is lower than 0 ℃;
(b) the snowfall amount is not less than 0;
(c) the dew point temperature is less than 0 ℃, and when the current air temperature is less than or equal to the dew point;
and if any one of the conditions is met, judging that the risk of icing or snow accumulation exists.
10. The method for self-melting snow on a road surface according to claim 6, wherein the safety condition is that the following conditions are simultaneously satisfied:
(a) the temperature of the pavement is more than 0 ℃, and the humidity of the pavement is equal to 0;
(b) the snowfall or rain increase is 0.
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| CN113791653A (en) * | 2021-10-28 | 2021-12-14 | 吉林大学 | Road active ice and snow removal sensing and heating start-stop control method |
| CN115874506A (en) * | 2022-12-30 | 2023-03-31 | 中国电力工程顾问集团西北电力设计院有限公司 | Intelligent snow melting system for road surface |
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Application publication date: 20210312 |