Method and apparatus for visibility-based route planning and construction

Abstract

The application provides a method and device for assisting route planning and construction based on visibility, relates to the technical field of visibility planning assistance, and comprises the following steps: acquiring observation data collected by each meteorological station in a region to be constructed and the types of each administrative region; dividing the observation region where each meteorological station is located based on the data type of the observation data in the corresponding first preset range of the meteorological station; determining the visibility selection index of the visibility observation region and the non-visibility observation region according to the sum of the proportion of the time length when the visibility of each type of administrative region meets the standard; determining the visibility selection index of the meteorological element observation region according to the proportion of the time length when each type of administrative region meets the preset meteorological standard in a historical period; and assisting in planning the construction route in the region to be constructed based on the risk level corresponding to the visibility selection index, the geographical conditions and construction demand of each observation region, so as to alleviate the technical problem that the actual application efficiency of the constructed road construction lacks systematic consideration.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of visibility planning assistance, and in particular to a method and device for assisting route planning based on visibility. BACKGROUND

[0002] With the rapid development of modern transportation technology, cross-regional road infrastructure construction is increasingly perfect, and its construction range has broken through the traditional administrative division boundaries. However, the current road planning system mainly focuses on construction needs and geographical environmental factors, and lacks systematic consideration of the actual application performance of the built road.

[0003] Through in-depth research, it is found that road visibility, as a key indicator affecting traffic safety and traffic efficiency, should be included in the core evaluation system of road site planning to improve the application reliability of the road network and optimize the operation performance of the overall traffic system. SUMMARY

[0004] The purpose of the present application is to provide a method and device for assisting route planning based on visibility to alleviate the technical problem that the built road construction lacks systematic consideration in actual application performance.

[0005] In a first aspect, the present application provides a method for assisting route planning based on visibility, comprising:

[0006] Obtaining observation data collected by each meteorological station in the region to be constructed and the types of each administrative district;

[0007] Based on the data type of the observation data within the corresponding first preset range of the meteorological station, the observation area where each meteorological station is located is divided; wherein the observation area includes a visibility observation area, a meteorological element observation area and a no-visibility observation area;

[0008] According to the sum of the proportion of the time length of the visibility meeting the standard in each type of administrative district, the visibility selection index of the visibility observation area and the no-visibility observation area is determined;

[0009] According to the proportion of the time length of each type of administrative district meeting the preset meteorological standard in the historical period, the visibility selection index of the meteorological element observation area is determined; wherein the preset meteorological standard includes relative humidity, wind speed and temperature;

[0010] Based on the risk level corresponding to the visibility selection index, the geographical conditions and construction demand of each observation area, the construction route in the region to be constructed is assisted to plan.

[0011] In an optional embodiment, the step of determining the visibility selection index of the visibility observation area and the no-visibility observation area according to the sum of the proportion of the time length of the visibility meeting the standard in each type of administrative district comprises:

[0012] According to the standard corresponding to each kind of administrative region in the visibility observation area, the visibility observation data collected by the meteorological station for the visibility observation area is evaluated to determine the occurrence duration of each visibility level in the preset historical time range;

[0013] Based on the proportion of the sum of the occurrence duration of each visibility level in the preset historical time range, the visibility selection index of the visibility observation area is determined;

[0014] Alternatively,

[0015] According to the standard corresponding to each kind of administrative region in the visibility observation area, the visibility observation data collected by the satellite for the visibility observation area is evaluated to determine the occurrence duration of each visibility level in the preset historical time range;

[0016] Based on the proportion of the sum of the occurrence duration of each visibility level in the preset historical time range, the visibility selection index of the visibility observation area is determined.

[0017] In an optional embodiment, before the step of evaluating the visibility observation data collected by the satellite for the visibility observation area according to the standard corresponding to each kind of administrative region in the visibility observation area to determine the occurrence duration of each visibility level in the preset historical time range, the method further comprises:

[0018] Based on the visibility observation data sent by the meteorological station in the second preset range of visibility observation areas received by the meteorological station in the visibility observation area, the visibility observation data collected by the satellite is corrected; wherein the second preset range is greater than the first preset range.

[0019] In an optional embodiment, the step of determining the visibility selection index of the meteorological element observation area according to the proportion of the duration that meets the preset meteorological standard in each kind of administrative region in the historical period comprises:

[0020] According to the preset meteorological standard corresponding to each kind of administrative region in the meteorological element observation area, the meteorological element observation data collected by the meteorological station for the meteorological element observation area is evaluated to determine the occurrence duration of low visibility in the historical period; wherein the duration that meets the preset meteorological standard is taken as the occurrence duration of low visibility;

[0021] The proportion of the occurrence duration of low visibility and the historical period is calculated to determine the average value for representing the total number of low visibility prone years;

[0022] if the average value is greater than or equal to the preset low-visibility time length, a first fitting relationship determines the visibility selection index of the meteorological element observation area; wherein, the fitting relationship is a curve determined by the visibility observation data and the meteorological element observation data collected by the meteorological stations in the preset administrative region in the historical period, and used to represent the relationship between the visibility selection index and the average value in the historical period; the fitting relationship includes the first fitting relationship and a second fitting relationship;

[0023] if the average value is less than the preset low-visibility time length, the second fitting relationship determines the visibility selection index of the meteorological element observation area.

[0024] In an optional implementation, based on the risk level corresponding to the visibility selection index, the geographical conditions and construction requirements of each observation area, the step of assisting in planning the construction route in the to-be-constructed area includes:

[0025] if the visibility selection index corresponds to a low-risk level, based on the geographical conditions and construction requirements of each observation area of the low-risk level, controlling each observation area of the low-risk level to participate in the planning of the construction route in the to-be-constructed area;

[0026] if the visibility selection index corresponds to a medium-risk level, based on the geographical conditions and construction requirements of each observation area of the medium-risk level, judging again whether to control each observation area of the medium-risk level to participate in the planning of the construction route in the to-be-constructed area.

[0027] In an optional implementation, the method further includes:

[0028] if the risk level corresponding to the visibility selection index of the observation area is high risk, controlling the observation area to plan to install a traffic safety induction device.

[0029] In an optional implementation, based on the data type of the observation data within the corresponding first preset range of the meteorological station, the step of dividing the observation area in which each meteorological station is located includes:

[0030] acquiring the data type of the observation data collected within the corresponding first preset range of each meteorological station;

[0031] judging whether there is visibility observation data or meteorological element observation data in the data type;

[0032] if there is visibility observation data, determining the first preset range corresponding to the meteorological station as a visibility observation area;

[0033] if there is only meteorological element observation data, determining the first preset range corresponding to the meteorological station as a meteorological element observation area;

[0034] If there is no visibility observation data and meteorological element observation data, the first preset range corresponding to the weather station is determined as the no-visibility observation area.

[0035] In an optional implementation, the step of obtaining the observation data collected by each weather station in the to-be-constructed area and the types of each administrative region comprises:

[0036] obtaining, from a third-party platform, the types of administrative regions included in the to-be-constructed area, the number of weather stations, the latitude and longitude coordinates of each weather station, and the observation data and data types of the observation data of each weather station.

[0037] In a second aspect, the present application provides a device for assisting in planning a construction route based on visibility, comprising:

[0038] an obtaining module, configured to obtain observation data collected by each weather station in a to-be-constructed area and the types of each administrative region;

[0039] a dividing module, configured to divide the observation area in which each weather station is located based on the data types of the observation data in the first preset range corresponding to the weather station; wherein the observation area comprises a visibility observation area, a meteorological element observation area and a no-visibility observation area;

[0040] a first determining module, configured to determine the visibility selection index of the visibility observation area and the no-visibility observation area according to the sum of the length-of-time proportions of the visibility meeting the standard in each type of administrative region;

[0041] a second determining module, configured to determine the visibility selection index of the meteorological element observation area according to the length-of-time proportion of each type of administrative region meeting a preset meteorological standard in a historical period; wherein the preset meteorological standard comprises relative humidity, wind speed and temperature;

[0042] a planning module, configured to assist in planning a construction route in the to-be-constructed area based on the risk level corresponding to the visibility selection index, the geographical conditions of each observation area and the construction demand.

[0043] In a third aspect, the present application provides an electronic device comprising a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the processor implements the method according to any one of the preceding embodiments when executing the program.

[0044] The embodiments of the present invention provide a method and device for assisting in planning construction routes based on visibility. Based on the observation data collected by meteorological stations in the area to be planned for construction, the type of observation area of ​​each meteorological station within a first preset range can be known. Then, according to the type of each observation area and the visibility / meteorological standards in each administrative district where the observation area is located, the duration for which the visibility / meteorological elements meet the requirements is determined, and then the visibility selection index of each type of observation area is calculated. Finally, based on the risk level corresponding to the selection index and the geographical conditions and construction needs of the observation area, the construction route is assisted in planning. This method takes into account the practical application impact of visibility on road construction and can ensure the reliability of road construction decisions.

[0045] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 A flow chart of a method for assisting route planning and construction based on visibility provided by an embodiment of the present invention;

[0049] Figure 2 A schematic diagram of the functional modules of a device for assisting route planning and construction based on visibility provided by an embodiment of the present invention;

[0050] Figure 3 A schematic diagram of the hardware architecture of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] The actual application reliability of the current road construction is not high, and based on this, the method and device for assisting in planning a construction route based on visibility provided in the embodiment of the application can combine the planning of the construction route assisted by visibility to ensure the application reliability of the actual construction.

[0053] In order to facilitate the understanding of the embodiment, first, a method for assisting in planning a construction route based on visibility is introduced in detail, which can be applied to intelligent control devices such as controllers, host computers, servers, etc.

[0054] Figure 1 A method for assisting in planning a construction route based on visibility provided in the embodiment of the application is provided.

[0055] Referring to Figure 1 The method mainly includes the following steps:

[0056] In step S102, observation data collected by each meteorological station in the to-be-constructed area and the type of each administrative region are obtained.

[0057] Among them, based on the to-be-constructed area of the current stage, the information of the area can be obtained, such as the measured data of the meteorological station included in the area and the distribution of the administrative regions in the area. For example, the administrative regions are the official division region types of northeast, north, northwest, southwest, southeast, etc.; the to-be-constructed area can be understood as a geographical area to be planned for road construction, and the road construction includes highway, bridge, building, station, etc. It should be noted that the embodiment of the application can have the right to obtain the corresponding observation data in each region for the convenience of road construction.

[0058] In step S104, based on the data type of the observation data in the first preset range of the meteorological station, the observation area where each meteorological station is located is divided.

[0059] Among them, the first preset range of the meteorological station can be understood as the observation area, and each meteorological station has a corresponding observation area. The types of the observation area include the visibility observation area, the meteorological element observation area and the no-visibility observation area. In other words, according to the type of the observation data collected by the meteorological station in the first preset range, the type corresponding to the observation area corresponding to the meteorological station can be determined.

[0060] In step S106, according to the sum of the proportion of the duration of the visibility meeting the standard in each type of administrative region, the visibility selection index of the visibility observation area and the no-visibility observation area is determined.

[0061] Here, for the two types of observation regions, i.e., the visibility observation region and the non-visibility observation region, the visibility selection index of the two types of observation regions can be determined based on the proportion of the time length during which the visibility data of each type of administrative region in the observation region meets the requirements.

[0062] In step S108, the visibility selection index of the meteorological element observation region is determined according to the proportion of the time length during which each type of administrative region in the historical period meets the preset meteorological standard.

[0063] Here, for the meteorological element observation region, the selection index of each type of observation region is determined based on the proportion of the time length during which the meteorological data of each type of administrative region meets the preset meteorological standard; wherein the preset meteorological standard includes relative humidity, wind speed and temperature.

[0064] In step S110, based on the risk level corresponding to the visibility selection index, the geographical conditions and construction needs of each observation region, the construction route in the region to be constructed is assisted to be planned.

[0065] Here, the risk level corresponding to the visibility selection index and the geographical conditions and construction needs of each observation region are jointly used as the planning decision factors of the construction route.

[0066] In the preferred embodiment of actual application, based on the observation data collected by the meteorological stations in the region to be constructed, the observation region type within the first preset range of each meteorological station can be known, and then the time length during which the visibility / meteorological element meets the requirements is determined according to the observation region type and the visibility / meteorological standard in each administrative region where the observation region is located, and the visibility selection index of each type of observation region is calculated; finally, based on the risk level corresponding to the selection index and combined with the geographical conditions and construction needs of the observation region, the construction route is assisted to be planned, and this kind of way considers the actual application influence of visibility on road construction, which can ensure the reliability of road construction decision.

[0067] In some embodiments, the corresponding relationship of each region to be constructed can be obtained from a third-party platform, a database, etc.; exemplarily, step S102 includes:

[0068] Step 1.1, obtaining the types of administrative regions included in the region to be constructed, the number of meteorological stations, the latitude and longitude coordinates of each meteorological station, and the observation data and data types of the observation data of each meteorological station from a third-party platform.

[0069] Here, based on the geographical range of the region to be constructed, the number and types of administrative regions included in the region to be constructed, the number and coordinates of meteorological stations, and the types of observation data that can be collected by each meteorological station can be obtained from a third-party geographical website or the like.

[0070] On the basis of the foregoing embodiments, based on the type of observation data collected by each meteorological station, the type of observation area corresponding to each meteorological station is determined, specifically including:

[0071] Step 2.1, obtaining the type of observation data collected within the first preset range corresponding to each meteorological station.

[0072] The first preset range can be selected as 2KM, 3KM, 5KM, etc.; the type of observation data can include visibility observation data and meteorological observation data.

[0073] As an optional embodiment, the first preset range corresponding to different meteorological stations and meteorological stations in different administrative areas can not be the same; for example, the first preset range of meteorological station 1 is 2KM, the first preset range of meteorological station 2 is 3KM, and for example, the first preset range of meteorological station 1 in administrative area A is 3KM, and the first preset range of meteorological station 1 in administrative area B is 2KM.

[0074] Step 2.2, judging whether there is visibility observation data or meteorological element observation data in the data type.

[0075] Here, the type of observation area is determined according to whether there is visibility observation data or meteorological element observation data in the observation data collected by each meteorological station within the first preset range.

[0076] Step 2.3, if there is visibility observation data, the first preset range corresponding to the meteorological station is determined as a visibility observation area.

[0077] If there is visibility observation data, the subsequent steps can be based on the visibility observation data to evaluate the visibility level of the observation area.

[0078] Step 2.4, if there is only meteorological element observation data, the first preset range corresponding to the meteorological station is determined as a meteorological element observation area.

[0079] If there is no visibility observation data but there is meteorological element observation data, the subsequent steps can be based on the meteorological observation data to estimate the visibility level of the observation area.

[0080] Step 2.5, if there is no visibility observation data and meteorological element observation data, the first preset range corresponding to the meteorological station is determined as a no-visibility observation area.

[0081] If there is no visibility observation data, the subsequent steps can be based on satellite-collected visibility observation data to estimate the visibility level of the observation area.

[0082] In practical applications, for the visibility observation area and the non-visibility observation area, the step S106 can calculate the visibility selection index through the following steps, specifically including:

[0083] Step 3.1, according to the visibility evaluation standard corresponding to each kind of administrative region, evaluating the visibility observation data collected by the meteorological station for the visibility observation area, determining the occurrence time length of each visibility level in the preset historical time range.

[0084] Here, the visibility observation area belongs to at least one administrative region, and the visibility evaluation standard corresponding to the visibility observation area is determined based on the kind of each administrative region; each kind of administrative region (northeast, southwest, etc.) can correspond to different visibility evaluation standards; if the visibility observation area crosses multiple administrative regions of different kinds, the visibility level of the visibility observation data collected by the visibility observation area and the occurrence frequency and time length of each visibility level are evaluated according to the judgment standard of each kind of administrative region.

[0085] Step 3.2, determining the visibility selection index of the visibility observation area based on the proportion of the sum of the occurrence time length of each visibility level in the preset historical time range, specifically through the following formula:

[0086]

[0087] Wherein, i represents the low visibility level (level 1 represents visibility less than 2000m; level 2 represents visibility less than 1000m, level 3 represents visibility less than 500m, and 4 represents visibility less than 200m); is the occurrence frequency (hour / year) of i visibility level, and t is the number of hours corresponding to the preset historical time range; here the numerator represents the sum of the occurrence time length of each visibility level, and the denominator is the number of hours corresponding to the preset historical time range, which can be selected as 1 year, 2 years, 3 years, etc.; if the preset historical time range is selected as 1 year, then t=8760.

[0088] Or,

[0089] Step 3.3, according to the visibility evaluation standard corresponding to each kind of administrative region, evaluating the visibility observation data collected by the satellite for the non-visibility observation area, determining the occurrence time length of each visibility level in the preset historical time range.

[0090] Here, the meteorological station in the no-visibility observation area cannot collect visibility observation data or meteorological observation data, and the selection index of the observation area can be evaluated based on the visibility observation data collected by the satellite in the observation area; at least one administrative region to which each no-visibility observation area belongs determines the visibility evaluation standard corresponding to the no-visibility observation area based on the type of each administrative region; as in the foregoing embodiment, each type of administrative region can correspond to different visibility evaluation standards; if the no-visibility observation area spans multiple administrative regions of different types, the visibility level of the visibility observation data collected by the satellite in the no-visibility observation area and the frequency and duration of each visibility level are evaluated according to the corresponding judgment standard of each type of administrative region.

[0091] Step 3.4, based on the proportion of the sum of the occurrence duration of each visibility level in the preset historical time range, determine the visibility selection index of the no-visibility observation area, which is realized by the following formula:

[0092]

[0093] Wherein, i represents the low visibility level (level 1 represents visibility less than 2000m; level 2 represents visibility less than 1000m, level 3 represents visibility less than 500m, and 4 represents visibility less than 200m); is the frequency of i visibility level (hour / year), and t is the number of hours corresponding to the preset historical time range; here the numerator represents the sum of the occurrence duration of each visibility level, and the denominator is the number of hours corresponding to the preset historical time range, which can be selected as 1 year, 2 years, 3 years, etc.; if the preset historical time range is selected as 1 year, then t=8760.

[0094] As an optional embodiment, in order to ensure the evaluation accuracy of the no-visibility observation area, before step 3.3, the method of the embodiment of the application further comprises:

[0095] Step 4.1, based on the visibility observation data sent by the meteorological station in the second preset range of the no-visibility observation area, correct the visibility observation data collected by the satellite.

[0096] It should be noted that there is a no-visibility observation area near the no-visibility observation area, or a meteorological element observation area, which can be based on the visibility observation data collected by the meteorological station in the no-visibility observation area, or the meteorological element observation data collected by the meteorological station in the meteorological element observation area, to correct the visibility observation data collected by the satellite for the no-visibility observation area, in order to ensure the accuracy of the satellite collected visibility observation data. Wherein, the second preset range is greater than the first preset range, and the second preset range can be selected as 5KM, 10KM, etc.

[0097] On this basis, for the meteorological element observation area, the step S108 can calculate the visibility selection index through the following steps, specifically including:

[0098] Step 5.1, according to the preset meteorological standard corresponding to each kind of administrative region, the meteorological station is evaluated for the meteorological element observation area to collect meteorological element observation data, and the occurrence time length of low visibility in the historical period is determined. Each meteorological element observation area belongs to at least one administrative region, and the preset meteorological standard corresponding to the meteorological element observation area is determined based on the type of each administrative region; the same as the foregoing embodiment, the preset meteorological standard of different types of administrative regions is different, which can be shown in the following table 1:

[0099] Table 1 Range of low visibility high frequency prone condition of each study sub-area

[0100]

[0101] Among them, the time length meeting the preset meteorological standard is taken as the occurrence time length of low visibility; that is, when the administrative region, relative humidity, wind speed and temperature in table 1 are met at the same time, the visibility meeting the preset meteorological standard of low visibility is determined; the historical period is pre-set, which can be set according to actual conditions, and the embodiment of the application takes 10 years as an example for illustration, such as based on table 1 to determine the occurrence time length of low visibility in the past 10 years.

[0102] Step 5.2, calculate the proportion of the occurrence time length of low visibility in the historical period, determine the average value for representing the total time of low visibility prone years, which can be seen in the following formula:

[0103]

[0104] Among them, is the average value of the total time of low visibility prone years in the historical period of the meteorological station, such as the past 10 years, is the total time of low visibility prone years, that is, the total time of low visibility prone years / the occurrence time length of low visibility, when the relative humidity, wind speed and temperature of the meteorological station meet the prone condition at the same time.

[0105] Step 5.3, if the average value is greater than or equal to the preset low visibility time length, the visibility selection index of the meteorological element observation area is determined according to the first fitting relationship. Wherein, the fitting relationship is a curve for representing the relationship between the visibility selection index and the average value of the total time of low visibility prone years in the historical period, which is determined by the visibility observation data and the meteorological element observation data collected by the meteorological station in the preset administrative region in the historical period; the fitting relationship is divided into the first fitting relationship when the average value is greater than or equal to the preset low visibility time length and the second fitting relationship when the average value is less than the preset low visibility time length based on the preset low visibility time length;

[0106] It should be noted that the preset administrative region can be understood as all administrative regions in the country, or the administrative region to which the current meteorological element observation region belongs; as an optional embodiment, the meteorological element observation region selects the first fitting relationship and the second fitting relationship fitted by the visibility observation data and the meteorological element observation data collected by the meteorological station in the target administrative region based on the target administrative region to which the meteorological element observation region belongs, to realize the determination of the visibility selection index of the meteorological element observation region.

[0107] Here, the preset low visibility time length can be selected as 500 hours, and if the average value calculated in the foregoing embodiment is greater than or equal to the preset low visibility time length, the visibility selection index of the meteorological element observation region can be calculated by the following formula:

[0108]

[0109] Wherein, I is the visibility selection index.

[0110] Step 5.4, if the average value is less than the preset low visibility time length, the second fitting relationship determines the visibility selection index of the meteorological element observation region, and the visibility selection index of the meteorological element observation region can be calculated by the following formula:

[0111]

[0112] Wherein, I is the visibility selection index.

[0113] In some embodiments, based on the visibility selection index calculated in the foregoing embodiment, the auxiliary planning of the construction route can be realized according to S110, which specifically includes:

[0114] Step 6.1, if the visibility selection index corresponds to a low risk level, the observation region of each low risk level is controlled to participate in the planning of the construction route in the to-be-constructed region based on the geographical situation and construction demand of each low risk level.

[0115] If I < 3.0, the observation region belongs to a low risk (I) level, and the visibility is relatively good; at this time, the planning decision of the construction route in the to-be-constructed region can be realized by combining the geographical situation and construction demand of the observation region.

[0116] Step 6.2, if the visibility selection index corresponds to a medium risk level, the visibility is relatively general, and whether to control the observation region of each medium risk level to participate in the planning of the construction route in the to-be-constructed region is judged again based on the geographical situation and construction demand of each medium risk level.

[0117] If 5.0 > I > 3.0, the observation area belongs to the medium risk (II) level; at this time, the visibility / low visibility risk prediction system is further judged, and the planning and decision of the construction route in the to-be-constructed area are realized based on the risk meeting the requirements, the geographical conditions and the construction demand of the observation area.

[0118] Step 6.3, if the risk level corresponding to the visibility selection index of the observation area is high risk, the traffic safety induction device is controlled to be installed in the observation area.

[0119] If I > 5.0, the observation area belongs to the high risk (III) level, and the visibility is relatively poor; at this time, the visibility observation equipment, the visibility / low visibility risk prediction system or the traffic safety induction device can be added, and the observation area cannot be selected to participate in the construction route planning.

[0120] The embodiment of the present application fully uses the measured data of the existing meteorological station, determines three types of visibility observation area, no visibility observation area but regular meteorological station basic element observation area and no visibility observation area and no regular meteorological station basic element observation area according to the distribution of the meteorological station along the highway, calculates the visibility selection index of each observation area, can realize the evaluation of the low visibility level of any point / section in the national range, and determines the low visibility selection level according to the index size, and assists the road construction route planning or recommends the low visibility driving safety intelligent induction layout position.

[0121] In some embodiments, as shown in FIG. Figure 2 The embodiment of the present application provides a device for assisting planning construction route based on visibility, which comprises:

[0122] An acquisition module acquires observation data collected by each meteorological station in a to-be-constructed area and the type of each administrative region;

[0123] A division module divides the observation area where each meteorological station is located based on the data type of the observation data in the corresponding first preset range of the meteorological station; wherein the observation area comprises a visibility observation area, a meteorological element observation area and a no-visibility observation area.

[0124] A first determination module determines the visibility selection index of the visibility observation area and the no-visibility observation area according to the sum of the proportion of the time length when the visibility meets the standard in each type of administrative region.

[0125] A second determination module determines the visibility selection index of the meteorological element observation area according to the proportion of the time length meeting the preset meteorological standard in each type of administrative region in a historical period; wherein the preset meteorological standard comprises relative humidity, wind speed and temperature.

[0126] The planning module assists in planning a construction route in the to-be-constructed area based on a risk level corresponding to the visibility selection index, geographical conditions and construction requirements of each observation area.

[0127] Further, the first determination module is specifically configured to: determine occurrence durations of each visibility level in a preset historical time range according to visibility observation data collected by a meteorological station for the visibility observation area according to a standard corresponding to each type of administrative region in the visibility observation area; and determine the visibility selection index of the visibility observation area based on a proportion of a sum of the occurrence durations of the visibility levels in the preset historical time range; or determine occurrence durations of each visibility level in a preset historical time range according to visibility observation data collected by a satellite for the non-visibility observation area according to a standard corresponding to each type of administrative region in the non-visibility observation area; and determine the visibility selection index of the non-visibility observation area based on a proportion of a sum of the occurrence durations of the visibility levels in the preset historical time range.

[0128] Further, before the step of determining occurrence durations of each visibility level in a preset historical time range according to visibility observation data collected by a satellite for the non-visibility observation area according to a standard corresponding to each type of administrative region in the non-visibility observation area, the device is further configured to correct the visibility observation data collected by the satellite based on visibility observation data transmitted by a meteorological station in a second preset range of the visibility observation area and received by the meteorological station in the non-visibility observation area; wherein the second preset range is greater than the first preset range.

[0129] Further, the first determination module is specifically configured to: determine occurrence durations of low visibility in a historical time period according to meteorological element observation data collected by a meteorological station for a meteorological element observation area according to a preset meteorological standard corresponding to each type of administrative region in the meteorological element observation area; wherein a duration satisfying the preset meteorological standard is taken as an occurrence duration of low visibility; calculate a proportion of the occurrence duration of low visibility in the historical time period to determine an average value for representing a total number of years of low visibility; if the average value is greater than or equal to a preset low visibility duration, a first fitting relationship determines the visibility selection index of the meteorological element observation area; if the average value is less than the preset low visibility duration, a second fitting relationship determines the visibility selection index of the meteorological element observation area; wherein the fitting relationship is a curve determined by visibility observation data and meteorological element observation data collected by a meteorological station in a preset administrative region in the historical time period, and used to represent a relationship between the visibility selection index and the average value in the historical time period; and the fitting relationship includes the first fitting relationship and the second fitting relationship.

[0130] Further, the planning module is specifically configured to: if the visibility selection index corresponds to a low risk level, control each observation area of each low risk level to participate in planning of a construction route in the to-be-constructed area based on geographical conditions and construction requirements of the observation area of each low risk level; and if the visibility selection index corresponds to a medium risk level, re-judge whether to control each observation area of each medium risk level to participate in planning of the construction route in the to-be-constructed area based on geographical conditions and construction requirements of the observation area of each medium risk level.

[0131] Further, the device is further configured to: if the risk level corresponding to the visibility selection index of the observation area is a high risk, control the observation area to plan installation of a traffic safety induction device.

[0132] Further, the dividing module is specifically further configured to: acquire a data type of observation data collected in a first preset range corresponding to each meteorological station; judge whether there is visibility observation data or meteorological element observation data in the data type; if there is visibility observation data, determine the first preset range corresponding to the meteorological station as a visibility observation area; if there is only meteorological element observation data, determine the first preset range corresponding to the meteorological station as a meteorological element observation area; and if there is neither visibility observation data nor meteorological element observation data, determine the first preset range corresponding to the meteorological station as a non-visibility observation area.

[0133] Further, the acquiring module is specifically further configured to: obtain, from a third-party platform, a type of administrative region included in the to-be-constructed area, a number of meteorological stations, latitude and longitude coordinates of each meteorological station, and observation data and a data type of the observation data of each meteorological station.

[0134] The electronic device provided in the embodiment of the present application can be, but is not limited to, a personal computer (PC), a notebook computer, a monitoring device, a server, and the like.

[0135] As an exemplary embodiment, refer to Figure 3 The electronic device 110 includes a communication interface 111, a processor 112, a memory 113, and a bus 114, the processor 112, the communication interface 111, and the memory 113 are connected through the bus 114; the memory 113 is used for storing a computer program supporting the processor 112 to execute the above method, and the processor 112 is configured to execute the program stored in the memory 113.

[0136] The machine-readable storage medium mentioned herein can be any electronic, magnetic, optical, or other physical storage apparatus, which can contain or store information, such as executable instructions, data, and the like. For example, the machine-readable storage medium can be a RAM (Random Access Memory), a volatile memory, a non-volatile memory, a flash memory, a storage drive (such as a hard disk drive), any type of storage disk (such as an optical disk, a DVD, and the like), or similar storage medium, or a combination thereof.

[0137] The non-volatile medium can be a non-volatile memory, a flash memory, a storage drive (such as a hard disk drive), any type of storage disk (such as an optical disk, a DVD, and the like), or similar non-volatile storage medium, or a combination thereof.

[0138] It can be understood that the specific operation methods of the functional modules in the embodiments can refer to the detailed description of the corresponding steps in the above method embodiments, which will not be repeated here.

[0139] The computer-readable storage medium provided by the embodiments of the present application stores a computer program, and the computer program code can implement the method described in any of the above embodiments when executed. For details, refer to the method embodiments, which will not be repeated here.

[0140] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system and device can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0141] In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0142] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0143] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present application, and are used to illustrate the technical solutions of the present application, but are not intended to limit the present application. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. Such modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application.

Claims

1. A method for assisting construction route planning based on visibility, characterized in that: include: Obtain the observation data collected by each meteorological station in the area to be constructed and the type of each administrative district; Based on the data type of the observation data within the first preset range corresponding to the weather station, the observation area of ​​each weather station is divided; wherein the observation area includes a visibility observation area, a meteorological element observation area and a non-visibility observation area; The visibility selection index for areas with visibility observation and areas without visibility observation is determined based on the sum of the proportion of visibility compliance time in each type of administrative district. This is achieved through the following formula: Among them, I is the visibility selection index; i stands for low visibility level; is the frequency of occurrence of visibility level i, and t is the number of hours corresponding to the preset historical time range; According to the preset meteorological standards corresponding to each type of administrative area, meteorological element observation data collected by the meteorological station for the meteorological element observation area is evaluated to determine the duration of low visibility in the historical period; wherein the duration of meeting the preset meteorological standards is used as the duration of low visibility; the preset meteorological standards include relative humidity, wind speed and temperature; Calculate the proportion of the duration of low visibility in the historical period, and determine the average value used to characterize the total number of hours in a year prone to low visibility; If the average value is greater than or equal to the preset low visibility duration, the first fitting relationship determines the visibility selection index of the meteorological element observation area; and the visibility selection index of the meteorological element observation area is calculated by the following formula: in, is the average value of the total number of hours of low visibility prone years in the historical period of the meteorological station; the fitting relationship is a curve determined by using the visibility observation data and meteorological element observation data collected by meteorological stations in a preset administrative area during the historical period, and is used to represent the relationship between the visibility selection index and the average value in the historical period; the fitting relationship includes the first fitting relationship and the second fitting relationship; If the average value is less than the preset low visibility duration, the second fitting relationship is used to determine the visibility selection index of the meteorological element observation area; and the visibility selection index of the meteorological element observation area is calculated using the following formula: Based on the risk level corresponding to the visibility selection index, the geographical conditions and construction needs of each observation area, auxiliary planning of the construction route in the area to be constructed is carried out.

2. The method according to claim 1, characterized in that The steps for determining the visibility selection index for areas with visibility observation and areas without visibility observation based on the sum of the proportion of visibility compliance time in each type of administrative district include: According to the visibility assessment standards corresponding to each type of administrative area, the visibility observation data collected by the meteorological station for the visibility observation area is evaluated to determine the duration of occurrence of each visibility level within the preset historical time range; Determining a visibility selection index for the visibility observation area based on the proportion of the sum of the occurrence durations of the visibility levels in the preset historical time range; or, According to the visibility assessment standards corresponding to each type of administrative area, the visibility observation data collected by the satellite for the area without visibility observation is evaluated to determine the duration of occurrence of each visibility level within the preset historical time range; The visibility selection index of the area without visibility observation is determined based on the proportion of the sum of the occurrence durations of the visibility levels in the preset historical time range.

3. The method according to claim 2, characterized in that Before the step of evaluating the visibility observation data collected by the satellite for the area without visibility observation according to the visibility assessment standard corresponding to each type of administrative area and determining the duration of occurrence of each visibility level in a preset historical time range, the method further includes: The visibility observation data collected by the satellite is corrected based on the visibility observation data sent by the meteorological station in the visibility observation area within a second preset range received by the meteorological station in the non-visibility observation area; wherein the second preset range is larger than the first preset range.

4. The method according to claim 1, wherein The step of assisting in planning a construction route in the area to be constructed based on the risk level corresponding to the visibility selection index, the geographical conditions of each observation area, and the construction requirements includes: If the visibility selection index corresponds to a low risk level, then based on the geographical conditions and construction needs of each low risk level observation area, each low risk level observation area is controlled to participate in the planning of the construction route in the area to be constructed; If the visibility selection index corresponds to a medium risk level, then based on the geographical conditions and construction needs of each medium risk level observation area, it is determined again whether to control each medium risk level observation area to participate in the planning of the construction route in the area to be constructed.

5. The method according to claim 1, wherein The method further comprises: If the risk level corresponding to the visibility selection index of the observation area is high risk, the planning and installation of traffic safety induction devices in the observation area shall be controlled.

6. The method according to claim 1, characterized in that The step of dividing the observation area of ​​each weather station based on the data type of the observation data within the first preset range corresponding to the weather station includes: Acquire the data type of the observation data collected within a first preset range corresponding to each of the weather stations; Determining whether visibility observation data or meteorological element observation data exists in the data type; If visibility observation data exists, the first preset range corresponding to the weather station is determined as the visibility observation area; If only meteorological element observation data exists, the first preset range corresponding to the meteorological station is determined as the meteorological element observation area; If there is no visibility observation data and meteorological element observation data, the first preset range corresponding to the meteorological station is determined as a non-visibility observation area.

7. The method according to claim 1, characterized in that The steps for obtaining the observation data collected by each meteorological station in the area to be constructed and the type of each administrative district include: The types of administrative districts included in the area to be constructed, the number of weather stations, the latitude and longitude coordinates of each weather station, and the observation data and the data type of the observation data of each weather station are obtained from a third-party platform.

8. A device for assisting in planning construction routes based on visibility, characterized in that: include: The acquisition module obtains the observation data collected by each meteorological station in the area to be constructed and the type of each administrative district; a division module, based on the data type of the observation data within the first preset range corresponding to the weather station, dividing the observation area of ​​each weather station; wherein the observation area includes a visibility observation area, a meteorological element observation area and a non-visibility observation area; The first determination module determines the visibility selection index for areas with visibility observation and areas without visibility observation based on the sum of the proportion of visibility compliance time in each type of administrative district. This is achieved through the following formula: Among them, I is the visibility selection index; i stands for low visibility level; is the frequency of occurrence of visibility level i, and t is the number of hours corresponding to the preset historical time range; The second determination module evaluates the meteorological element observation data collected by the meteorological station for the meteorological element observation area according to the preset meteorological standards corresponding to each type of administrative area, and determines the duration of low visibility in the historical period; wherein the duration that meets the preset meteorological standards is used as the duration of low visibility; the preset meteorological standards include relative humidity, wind speed and temperature; calculates the proportion of the duration of low visibility in the historical period, and determines the average value used to characterize the total number of hours in a year prone to low visibility; if the average value is greater than or equal to the preset low visibility duration, the first fitting relationship determines the visibility selection index of the meteorological element observation area; the visibility selection index of the meteorological element observation area is calculated by the following formula: in, is the average value of the total number of hours of low visibility prone to occur in the historical period of the meteorological station; the fitting relationship is a curve determined by using the visibility observation data and meteorological element observation data collected by the meteorological stations in the preset administrative area during the historical period to characterize the relationship between the visibility selection index and the average value in the historical period; the fitting relationship includes the first fitting relationship and the second fitting relationship; if the average value is less than the preset low visibility duration, the visibility selection index of the meteorological element observation area is determined by the second fitting relationship; the visibility selection index of the meteorological element observation area is calculated by the following formula: The planning module assists in planning the construction route in the area to be constructed based on the risk level corresponding to the visibility selection index, the geographical conditions and construction needs of each observation area.

9. An electronic device, characterized in that: The method comprises a memory, a processor, and a program stored in the memory and capable of being run on the processor, wherein the processor implements the method according to any one of claims 1 to 7 when executing the program.

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