WO2018168224A1

WO2018168224A1 - Utilization system for traffic infrastructure investigation data

Info

Publication number: WO2018168224A1
Application number: PCT/JP2018/002681
Authority: WO
Inventors: 雄二下平; 一哉八木澤
Original assignee: 株式会社土木管理総合試験所
Priority date: 2017-03-14
Filing date: 2018-01-29
Publication date: 2018-09-20

Abstract

In order to effectively utilize investigation data about the deterioration in or damage to traffic infrastructure and prevent accidents in advance, the present invention is provided with: an electromagnetic wave radar (12) mounted on a vehicle (13); a GNSS device (14) mounted on the vehicle (13); and a server (30) which is connected to the electromagnetic wave radar (12) and the GNSS device (14) through a communication line and which receives reflective wave data and current position data. The server (30) has: an analysis program (P1) which analyzes the reflective wave data to detect the deterioration and damage that has occurred on a target surface and under the target surface or detect the presence of a buried object; map data (D1); and a map data synchronization program (P2) which, on the basis of position data, specifies on the map data (D1), the place where the deterioration, damage, or buried object has been detected by the analysis program (P1). The server (30) discloses the map data (D1), on which the place is specified where the deterioration, damage, or buried object has been detected, only to specific access members on the Internet.

Description

Traffic infrastructure exploration data utilization system

The present invention relates to a system and a method of using a search result in a traffic infrastructure such as a road, a bridge, a railway, and an airport.

Deterioration in traffic infrastructure (hereinafter sometimes abbreviated as “traffic infrastructure”) such as asphalt damage on the road surface, underground cavitation below the road, or deterioration or damage to bridge floors Damage is a problem.
Methods for diagnosing such deterioration and damage of traffic infrastructure have been proposed.

For example, according to the method disclosed in Patent Document 1: Japanese Patent Application Laid-Open No. 2015-197434, an electromagnetic wave is incident on the ground, and a reflected wave is analyzed, thereby generating a cavity below a target surface such as a road. It is detected that

Japanese Patent Laying-Open No. 2015-197434

When the deterioration or damage of transportation infrastructure (including cavities) is detected, how to effectively use the detected data to prevent accidents has not been actively discussed and has become an issue. .

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a system that can effectively use the detected data regarding the deterioration or damage of the traffic infrastructure and prevent an accident in advance. is there.

According to the traffic infrastructure exploration data utilization system according to the present invention, an electromagnetic wave that is mounted on a vehicle traveling on a target surface of the traffic infrastructure, receives an electromagnetic wave incident on the target surface, and receives a reflected wave reflected. A radar, a GNSS device that is mounted on the vehicle and detects a current traveling location, and is connected to the electromagnetic wave radar and the GNSS device via a communication line; the reflected wave data from the electromagnetic wave radar and the current GNSS device from the GNSS device; A server that receives position data, and the server analyzes the reflected wave data transmitted from the electromagnetic wave radar to detect deterioration of the target surface and under the target surface, damage, and presence of an embedded object. And the map data and the location where deterioration, damage or buried objects are detected by the analysis program based on the position data. A map data synchronization program for specifying on the map data, and the server sends only map data for which a location where deterioration, damage or buried objects are detected to a specific accessor. It can be downloaded and disclosed on the Internet.
By adopting this structure, the location of the exploration results on the map data is specified, and the map data in which the deterioration, damage (the cavity is also included in the deterioration or damage), and the location of the buried object are specified, For example, by providing it to specific accessers such as highway management operators, the Ministry of Land, Infrastructure, Transport and Tourism, local governments, consultants, etc., it is possible to reliably advance the development of traffic infrastructure using accurate data, and to prevent accidents. This contributes to prevention.

The analysis program has a progress status calculation function for calculating the progress status of deterioration or damage from the reflected wave data at different dates and times when the reflected wave data for the same place is received at different dates and times. Also good.
According to this configuration, as the progress of deterioration or damage, the enlargement ratio per deterioration or damage for a predetermined period can be calculated and associated with the map data and disclosed on the Internet.

The vehicle may be a vehicle owned by a transportation company or public transportation.
According to this configuration, it is possible to perform an exploration by using a vehicle that is always traveling by a transportation company or public transportation, without traveling a vehicle equipped with an electromagnetic wave radar for exploration. For this reason, useless expense does not arise in collection of exploration data.

According to the present invention, it is possible to use the accurate traffic infrastructure exploration data to reliably proceed with the development of the traffic infrastructure and contribute to the prevention of accidents.

It is explanatory drawing which shows the whole structure of the utilization system of traffic infrastructure search data. It is a block diagram which shows the structure of a GNSS apparatus. It is a block diagram which shows the structure of an electromagnetic wave radar. It is a block diagram which shows the structure of a server. It is explanatory drawing which shows an example of the login screen for map data access. It is explanatory drawing which shows an example of the display screen of map data. It is explanatory drawing which shows an example of the data in the selected point.

FIG. 1 shows the overall configuration of a traffic infrastructure exploration data utilization system according to this embodiment.
The transportation infrastructure of this embodiment is assumed to be a general road or a highway. Cavities, damages, and buried objects occurring below the road are probed by the electromagnetic wave radar 12. The electromagnetic wave radar 12 has a function of irradiating an electromagnetic wave downward on the road and receiving a reflected wave.

The electromagnetic wave radar 12 is mounted on a vehicle 13 traveling on the road.
The vehicle 13 is a vehicle owned by a transportation company or a vehicle of public transportation. Examples of transportation company vehicles include courier trucks and trucks for transportation. Examples of public transportation vehicles include buses from bus companies and taxis from taxi companies. Further, the electromagnetic wave radar 12 may be mounted on a police vehicle, an emergency vehicle, a fire fighting vehicle, a public patrol vehicle owned by each local government, or the like as a public vehicle.

As described above, it is not necessary to prepare a dedicated vehicle for exploration and travel only for exploration by selecting a vehicle for which the traveling itself is a business as a vehicle on which the electromagnetic wave radar 12 is mounted. This contributes to cost reduction during exploration.

In addition, the administrator of the present system makes a contract with a transportation company that has the electromagnetic wave radar 12 mounted on the vehicle, or a public transportation, to pay the price instead of mounting the electromagnetic wave radar 12 on the vehicle 13. It is good to conclude.
Thereby, the motivation for mounting the electromagnetic wave radar 12 on the owned vehicle 13 is given to the transportation company and public transportation. As a price, it is good to set the amount of money per 1 km of traveling.

Note that GNSS is a general term for satellite positioning systems that measure the current position using an artificial satellite, and includes, for example, GPS, GOLONASS, GALILEO, and COMPASS.

A schematic configuration of the GNSS apparatus is shown in FIG.
The GNSS device 14 transmits position data based on the received radio waves through a receiving unit 20 that receives radio waves from a plurality of satellites, a telephone line connecting unit 22 that can be connected to a telephone line, and a communication line such as the Internet. And a transmission unit 24.
The telephone line connection unit 22 is provided for correcting the position information received by the receiving unit 20 and determined based on the radio wave based on the distance from the base station of the telephone line. The transmission unit 24 transmits position data in real time.

A schematic configuration of the electromagnetic wave radar is shown in FIG.
The electromagnetic wave radar 12 includes an irradiation unit 25 that radiates electromagnetic waves toward the ground, a reception unit 26 that receives reflected waves from the ground, and a transmission unit 27 that transmits reflected wave data through a communication line such as the Internet. is doing. The transmitter 27 transmits the reflected wave data in real time.

The GNSS device 14 and the electromagnetic wave radar 12 are communicably connected to the server 30, and the server 30 receives the position data from the GNSS device 14 and the reflected wave data from the electromagnetic wave radar 12.

FIG. 4 shows a schematic configuration of the server.
The server 30 includes a control unit 32 configured by a CPU, a memory, and the like, a storage device 34 such as a hard disk, and a communication unit 35 for communicating with a communication line such as the Internet.
The storage device 34 stores an analysis program P1, a map data synchronization program P2, and map data D1.

When the control unit 32 executes the analysis program P1, the analysis program P1 causes the surface portion to deteriorate based on the reflected wave data transmitted from the electromagnetic wave radar 12, for example, asphalt or concrete deterioration, underground cavities or buried Determine the presence or absence of objects.
Although a specific determination method in the analysis program P1 is omitted, the determination is made based on the size of the waveform peak of the reflected wave data and the sign of the waveform peak.

By executing the map data synchronization program P <b> 2, the control unit 32 can display deterioration, a cavity, or an existing location of an embedded object on the map data D <b> 1.
Based on the position data transmitted from the GNSS device 14, the map data synchronization program P2 reflects the deterioration determined by the analysis program P1 and the location of a cavity or an embedded object in the map data D1. In the map data synchronization program P2, it is necessary to synchronize the position data and the reflected wave data, and to accurately reflect the deterioration, the location of the cavity or the embedded object in the map data D1.
In addition, as a display method to the map data D1, for example, there is a method of displaying deterioration, a cavity, or an existence part of a buried object in a color different from other parts.

Further, the analysis program determines the degree of deterioration and the degree of abnormality of the cavity or the embedded object based on the reflected wave data. The degree of abnormality is divided into three levels: high, medium, and low.
In addition to the degree of abnormality, the analysis program determines whether the position is an earthwork section (road) or a bridge based on the position data. Or in the case of a bridge, in the case of a bridge, it is determined whether the pavement is abnormal or the pavement / floor is abnormal. The determined result is stored in the storage device 34 together with the survey date in association with the reflected wave data.

The map data D1 is stored in the public directory of the server 30, and the map data D1 displaying the deterioration, the presence of cavities or buried objects is disclosed on the Internet to those who have access authority. A person having access authority can access or browse or download the map data D1.

As the person having access authority, for example, a highway management company, an ordering organization such as the Ministry of Land, Infrastructure, Transport and Tourism, a local government, or a consultant is assumed. However, general users may also have access rights.
These persons make a contract to pay the price for acquiring the map data D1 to the manager of the system, and receive an ID and a password for accessing the map data D1 from the manager of the system.

In this way, the reflected wave data of the electromagnetic wave radar 12 is received in real time from a transportation company or a traveling vehicle of a public transportation that always travels on the road, and the analysis program P1 and the map data synchronization program P2 cause deterioration and cavitation. Alternatively, since the presence of the buried object can be reflected in the map data D1 in real time, it is possible to quickly examine the repair of the traffic infrastructure.

Further, when the analysis program P1 receives reflected wave data for the same place at different dates and times, the analysis program P1 may have a progress status calculation function that calculates the progress status of deterioration or damage from the reflected wave data at different dates and times. Good.
For example, the progress calculation function can calculate the enlargement rate per predetermined number of days of the size of the cavity at the same place by analyzing the reflected wave data, and can be associated with the map data D1 and disclosed on the Internet.

Such a system can be used not only for roads but also for deterioration and damage of bridges and tunnels. For example, in the case of a tunnel, if the electromagnetic wave irradiation direction of the electromagnetic wave radar 12 is set to the direction of the wall surface of the tunnel, it is possible to detect deterioration or damage on the inner wall surface of the tunnel or inside.

Such a system can also be used in railways and airports.
In the case of a railway, the electromagnetic wave radar 12 and the GNSS device 14 are mounted on a train that is normally running, and deterioration or damage on the surface of the track or below the track is detected.

In the case of airports, electromagnetic radar 12 and GNSS are used for towing tractors towing pallets loaded with containers, high lift loaders and belt loaders for loading containers on airplanes, towing cars for moving airplanes, passenger step cars for passengers to get on and off, etc. The device 14 is mounted to detect deterioration and damage on the pavement surface and below the pavement of the airport.

FIG. 5 to FIG. 7 show examples of map data in which the presence of deterioration, cavities or buried objects is displayed.
FIG. 5 shows a login screen for accessing map data disclosed by the server 30 on the Internet.
On the login screen, a member ID input field 40, a password input field 42, and a login button 44 are displayed.
A person who wants to use map data (hereinafter simply referred to as a user) needs to register as a member in advance and obtain a member ID and password. Member registration, membership ID, and password assignment to the user are performed by the management operating company of the server 30.

The user accesses the URL where the map data is disclosed, and inputs the assigned member ID and password in the member ID input field 40 and password input field 42 on the login screen.
The server 30 stores the member ID and password of the member in the storage device 34 in advance, and the control unit 32 of the server 30 confirms the input member ID and password and allows only authenticated persons to log in. .
When the control unit 32 of the server 30 confirms that the login button 44 is pressed after authenticating the member ID and password, the control unit 32 shifts to a map data display screen.

FIG. 6 shows an example of the map data display screen.
On the map data display screen, a map data display section 46, a diagnosis condition selection field 48, a diagnosis time selection field 50, a point selection method selection field 52, a download point field 54, and a download button 55 are displayed.
The map data display unit 46 displays information on the degree of abnormality on the road or bridge on the map data based on the reflected wave data transmitted from the electromagnetic wave radar 12. The degree of abnormality is controlled to be displayed on the map data as dots (points) with high, medium, and small colors.
In order to display the degree of abnormality in map data, the map data synchronization program P2 classifies the state of deterioration, presence or absence of cavities or buried objects into high, medium, and low degrees of abnormality for each position data, and displays it at the corresponding position on the map data. It is executed by displaying dots (points).
For example, the map data synchronization program P2 displays the high abnormality degree in red, the middle abnormality degree in yellow, and the low abnormality degree in blue so that the location of the abnormality can be recognized at a glance.

In addition, the selection field 48 of the diagnosis condition allows the user to select whether the pavement abnormality level, the presence / absence of cavities / foreign objects, and the laying state of the buried object are displayed in the earthwork section. It is possible for the user to select which one of the abnormality level of the pavement and the floor slab is to be displayed.
The control unit 32 of the server 30 displays on the map data display unit 46 about the abnormal state of the earthwork unit or the bridge unit selected by the user and the abnormal content that matches the diagnosis time condition input in the diagnosis time selection field 50. .

In the point selection method selection field 52, the user can select one point selection, linear selection, or range selection.
One-point selection allows you to select points on the map one by one, and linear selection refers to selecting all starting points and goal points on the map and selecting all points on the map. In the range selection, when a starting point and an end point are selected on a map, all points on the map within the range can be selected.
Further, in the download point column 54, the user can select so that any one of high, medium and low abnormalities can be excluded. In addition, the point finally selected by the user is displayed.

When the user presses the download button 55 after selecting a point, the control unit 32 of the server 30 downloads the data at the point selected in the download point column 54 to the user.

FIG. 7 shows an example of downloaded data of abnormal points.
This data includes road classification, jurisdiction classification, diagnosis condition, survey date, survey position, survey position map, travel image, past rainfall, and analysis data of this point.
That is, the storage device 34 of the server 30 stores the road classification, jurisdiction classification, survey date, travel image, past rainfall, and analysis data at the location where the deterioration, damage or buried object obtained by the analysis program P1 is detected. Must be stored in association with each other.

The analysis data shown in FIG. 7 is a plan view of the road from above, and is color-coded according to the degree of abnormality high, medium, and low.
In this example, it can be seen that the degree of abnormality is large from the point 176 m to the point 178 m at the selected point.

As described above, by disclosing information on road or bridge abnormality obtained from the traveling vehicle to a specific member on the Internet, the abnormal part can be repaired and repaired quickly and accurately.

Claims

An electromagnetic wave radar that is mounted on a vehicle that travels on a target surface of a traffic infrastructure, receives an electromagnetic wave incident on the target surface, and receives a reflected wave reflected;
A GNSS device mounted on the vehicle for detecting the current traveling location;
A server that is connected to the electromagnetic wave radar and the GNSS device via a communication line, and receives reflected wave data from the electromagnetic wave radar and current position data from the GNSS device;
The server
An analysis program for analyzing the reflected wave data transmitted from the electromagnetic wave radar to detect deterioration of the target surface and under the target surface, damage and presence of an embedded object;
Map data,
A map data synchronization program for specifying on the map data, based on the position data, the location where deterioration, damage or buried objects are detected by the analysis program,
The server discloses map data in which the location where deterioration, damage or buried objects are detected is disclosed on the Internet so as to be downloadable only to a specific accessor. Usage system.
The analysis program is
The traffic according to claim 1, further comprising a progress calculation function for calculating the progress of deterioration or damage from the reflected wave data at different dates and times when the reflected wave data for the same place is received at different dates and times. Infrastructure exploration data utilization system.
The traffic infrastructure exploration data utilization system according to claim 1 or 2, wherein the vehicle is a vehicle owned by a transportation company or public transportation.