KR102568115B1 - Traffic information collecting method using unmanned air vehicle - Google Patents

Abstract

The present invention relates to a method for collecting traffic information using an unmanned aerial vehicle, when the unmanned aerial vehicle receives a traffic information acquisition signal, when the map and traffic information are acquired and transmitted to a remote server, when the battery capacity of the unmanned aerial vehicle is out of the normal state. It relates to a traffic information collection method using an unmanned aerial vehicle capable of ensuring flight continuity of an unmanned aerial vehicle by moving to and charging a vehicle that can be charged.
A traffic information collection method using an unmanned aerial vehicle of the present invention includes a first step of determining whether the unmanned aerial vehicle has received a traffic information acquisition signal; a second step of acquiring map and traffic information and transmitting them to a remote server when the unmanned aerial vehicle receives a traffic information acquisition signal; a third step of determining whether the battery capacity of the unmanned aerial vehicle is in a normal state; a fourth step of determining whether there is a driving vehicle that can be charged when the capacity of the battery is out of a normal state using path information of the driving vehicle stored in the unmanned aerial vehicle; A fifth step of charging the unmanned aerial vehicle by moving to the driving vehicle when there is a charging vehicle; and a sixth step of re-performing the first step when the charging of the unmanned aerial vehicle is completed.

Description

Traffic information collecting method using unmanned air vehicle}

The present invention relates to a method for collecting traffic information using an unmanned aerial vehicle, when the unmanned aerial vehicle receives a traffic information acquisition signal, when the map and traffic information are acquired and transmitted to a remote server, when the battery capacity of the unmanned aerial vehicle is out of the normal state. It relates to a traffic information collection method using an unmanned aerial vehicle capable of ensuring flight continuity of an unmanned aerial vehicle by moving to and charging a vehicle that can be charged.

Unmanned aerial vehicles, commonly known as unmanned aerial vehicles, so-called 'drone', were initially used as targets instead of enemy planes for practice shooting of air force planes or antiaircraft guns, and have recently been used in the military, broadcasting, logistics, and leisure fields. It has been developed and used in various forms.

The advantage of such an unmanned air vehicle is that it is an unmanned air vehicle, and it is used in various fields due to its ease of operation and very stable flight performance compared to other air vehicles.

In addition, a conventional traffic information collection system monitors traffic conditions by installing cameras on high structures ranging from several meters to tens of meters at key points and transmitting images captured through the cameras to a remote server. In areas where there are no tall structures, a structure for installing a camera is installed to monitor the traffic situation in order to install a camera at a high place.

However, these traffic monitoring methods have relatively high installation costs, and are currently starting to be applied to traffic monitoring methods using unmanned aerial vehicles.

As a conventional technology related to this, Korean Patent Publication No. 2017-0116608 'traffic information system applied to an unmanned aerial vehicle and its traffic information processing method' has been proposed, which will be described with reference to FIG. 1 as follows.

The drone-applied traffic information system 100 of the unmanned aerial vehicle-applied traffic information system 100 includes an unmanned aerial vehicle, that is, a drone 110, which collects traffic conditions of a set distance from the vehicle 101 while flying, and a vehicle 101. Includes a network processing module 130 that is installed and transmits and receives the drone 110 to process information received from the drone 110, and a medium for displaying the information processed by the network processing module 130 so that the driver can recognize it. And, the drone 110 has a structure that is docked to the docking unit of the vehicle 101, so when it does not operate, such as grasping traffic conditions, the drone 110 is docked to the docking unit provided in the vehicle 101. so that the drone 110 can be charged.

However, since these conventional technologies are equipped with a charging system dependent on a specific vehicle, there is a limit to ensuring continuous flight continuity of the unmanned aerial vehicle for collecting infrastructure information.

The present invention, which was made to solve the problems of the prior art as described above, has an object to secure flight continuity of an unmanned aerial vehicle for collecting maps and traffic information.

In addition, another object of the present invention is to continuously collect map and traffic information even when the unmanned air vehicle is charged and mounted on a vehicle.

In addition, another object of the present invention is to enable other unmanned aerial vehicles to collect a role for a map and traffic information collection area even when an unmanned aerial vehicle needs to be recharged.

In addition, in the case of charging an unmanned aerial vehicle, the continuity and collection of map and traffic information collection is carried out by moving to another driving vehicle and continuing charging using route information of a vehicle that can be charged so as not to deviate from the map and traffic information collection area. There is another purpose to be able to assume a clear role for the realm.

The above object of the present invention is a method for collecting traffic information using an unmanned aerial vehicle, comprising: a first step of determining whether an unmanned aerial vehicle has received a traffic information acquisition signal; a second step of acquiring map and traffic information and transmitting them to a remote server when the unmanned aerial vehicle receives a traffic information acquisition signal; a third step of determining whether the battery capacity of the unmanned aerial vehicle is in a normal state; a fourth step of determining whether there is a driving vehicle that can be charged when the capacity of the battery is out of a normal state using path information of the driving vehicle stored in the unmanned aerial vehicle; A fifth step of charging the unmanned aerial vehicle by moving to the driving vehicle when there is a charging vehicle; and a sixth step of re-performing the first step when the charging of the unmanned aerial vehicle is completed.

Therefore, the traffic information collection method using an unmanned aerial vehicle of the present invention has an effect of securing flight continuity by overcoming the short flight time of the unmanned aerial vehicle for collecting map and traffic information.

In addition, the present invention has another effect of enabling continuous collection of map and traffic information, although limited, by continuously collecting map and traffic information even when the unmanned aerial vehicle is charged and mounted on a vehicle. .

In addition, the present invention has another effect of ensuring the continuity of map and traffic information collection by allowing other UAVs to collect the role of the map and traffic information collection area even when the UAV needs charging.

In addition, the present invention collects map and traffic information by allowing the unmanned aerial vehicle to move to another driving vehicle and continue charging by using route information of a vehicle that can be charged so as not to deviate from the map and traffic information collection area even when charging the unmanned aerial vehicle. There is another effect that allows unmanned aerial vehicles to play a clear role for the persistence and collection domains.

1 is a conceptual diagram of a drone-applied traffic information system according to the prior art;
2 is a schematic diagram of a system for performing a traffic information collection method using an unmanned aerial vehicle according to the present invention;
3 is a flowchart of a method for collecting traffic information using an unmanned aerial vehicle according to the present invention;
4 is a flowchart related to data acquisition of an unmanned aerial vehicle according to the present invention.

Terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, various alternatives may be used at the time of this application. It should be understood that there may be equivalents and variations.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic diagram of a system for performing a traffic information collection method using an unmanned aerial vehicle according to the present invention. As shown in FIG. 2, the traffic information collection system using an unmanned aerial vehicle of the present invention is composed of an unmanned aerial vehicle 200, a traveling vehicle 300, a remote server 400, and an infrastructure charging device 500, which are wired or connected by a wireless network.

The dual driving vehicle 300 is a vehicle or autonomous vehicle traveling on a designated route having charging and communication functions, and is capable of charging and communicating with the unmanned aerial vehicle 200. It is more preferable to use a bus as a means of transportation.

In addition, the remote server 400 is composed of an autonomous driving management system, a traffic information system, a map production system, a public transportation system, and an unmanned aerial vehicle management system. processing and control over them.

3 is a flowchart of a method for collecting traffic information using an unmanned aerial vehicle according to the present invention. As illustrated in FIG. 3 , in the traffic information collection method using an unmanned aerial vehicle of the present invention, it is determined whether the unmanned aerial vehicle 200 has received a traffic information acquisition signal (S110 and S120). When the unmanned aerial vehicle 200 receives the traffic information acquisition signal, the map and traffic information are obtained and transmitted to the remote server 400 (S130).

If it is not the traffic information acquisition signal, the unmanned aerial vehicle 200 moves (S190) and ends its role.

However, when the role of the unmanned aerial vehicle 200 is to be continued, it is determined whether the capacity of the battery loaded in the unmanned aerial vehicle 200 is in a normal state enabling stable flight of the unmanned aerial vehicle 200 (S140). continues to acquire and transmit map and traffic data, and if the capacity of the battery is out of the normal state, it is determined whether there is a driving vehicle 300 equipped with charging facilities for continuous flight of the unmanned aerial vehicle 200.

In this case, unlike the conventional technology in which charging is carried out by being mounted on a designated driving vehicle, in the present invention, a driving vehicle having a facility capable of charging using the route information of the driving vehicle 300 stored in the unmanned aerial vehicle 200 ( 300) is grasped (S160).

Here, when the infrastructure or the driving vehicle 300 in which facilities capable of charging are built cannot fly with the remaining amount of the battery, the unmanned aerial vehicle 200 cannot perform functions related to map and traffic information collection, so the function is terminated. For the movement (S190).

However, when there is infrastructure or a driving vehicle 300 in which charging facilities are built, the unmanned aerial vehicle 200 is charged by moving to the infrastructure or driving vehicle 300 .

However, in the present invention, charging in an infrastructure in which charging facilities are built has little relevance to the technical gist of the present invention, and a detailed description thereof is omitted.

After that, when the charging of the unmanned aerial vehicle 200 is completed, the role for acquiring maps and traffic data is repeated.

4 is a flowchart related to data acquisition of an unmanned aerial vehicle according to the present invention. As shown in FIG. 4, detailed procedures related to data acquisition using the unmanned aerial vehicle 200 of the present invention are shown.

The unmanned aerial vehicle 200 of the present invention is not a general type of information acquisition, but rather a predetermined area by collecting information collected by a plurality of unmanned aerial vehicles 200 to obtain infrastructure-characterized maps and traffic information as a technical point A specific unmanned aerial vehicle (200) is responsible for acquiring maps and traffic information, and maps and traffic information are generated by combining information collected from the unmanned aerial vehicles (200).

Here, the unmanned aerial vehicle 200 receives a movement signal to a destination, which is a map and traffic information acquisition area (S210), and collects the degree of map and traffic information acquisition area.

However, when the battery of the unmanned aerial vehicle 200 is out of a normal state, it is difficult to perform the functions of the unmanned aerial vehicle 200, and thus a facility capable of charging must be searched for.

In this case, the facility capable of charging is moved to the infrastructure charging device 400 that is already built, and its description is omitted because it is not related to the technical gist of the present invention, and moves to a driving vehicle corresponding to the technical gist of the present invention. It is assumed that

In the present invention, the driving vehicle 300 traveling on a designated route with relatively high predictability of the route is first searched for, and the unmanned aerial vehicle 200 is charged in the driving vehicle 300 traveling on the designated route.

Here, it is more preferable that the vehicle traveling on the designated route is a bus, which is one of the generally known means of public transportation.

If there is no driving vehicle 300 traveling on the designated route, the autonomous route driving vehicle having facilities capable of charging the unmanned aerial vehicle 200 is searched for (S221) and charging proceeds.

Here, when the unmanned aerial vehicle 200 is charged in the designated route driving vehicle 300 or the autonomous route driving vehicle 300, the information acquired by the unmanned aerial vehicle 200 in a normal operating state is the unmanned aerial vehicle 200 Compared to collecting information at a certain altitude, there are restrictions on movement while charging the unmanned aerial vehicle 200, so there are limitations on the collection of map and traffic information, but the camera and lidar mounted on the unmanned aerial vehicle 200 Since limited information can be collected by sensors such as the back, map and traffic information are continuously collected even while the unmanned aerial vehicle 200 is being charged.

In this case, when charging the unmanned aerial vehicle 200, it is possible to obtain location information for acquiring map and traffic information from a sensor system mounted on the unmanned aerial vehicle 200, but continuously collecting location information and driving Since the stability of the driving vehicle 300 is higher, it is more preferable to acquire maps and traffic information using location information of the driving vehicle 300 .

In addition, the unmanned aerial vehicle 200 transmits the collected map and traffic information to the driving vehicle 300 by wire or wirelessly, and transmits the collected map and traffic information to the remote server 400 through the communication network of the driving vehicle 300, which is more stable than that of the unmanned aerial vehicle. So that it can be reflected in maps and traffic information.

In addition, the unmanned aerial vehicle 200 requires acquisition of map and traffic information and transmission to the remote server 400 even in a normal operating state or charging state, and the unmanned aerial vehicle 200 has a map and traffic information acquisition area. The latest map and traffic information are stored in advance, and the unmanned aerial vehicle 200 compares the map and traffic information stored in advance with the newly acquired map and traffic information (S250) and sends only the changed information to the remote server 400. It is desirable to reduce the amount of communication related to the transmission of map and traffic information through the transmission box (S260).

In addition, even when the unmanned aerial vehicle 200 moves to the driving vehicle 300 and is charged, stable information is required for the construction and utilization of infrastructure information. It is desirable not to deviate more than a certain distance from the area.

To this end, in order not to deviate more than a certain distance from the area where map and traffic information were acquired using route information of the driving vehicle 300 or autonomous route driving vehicle 300 traveling on a designated route, a charging facility is required. It is more preferable to search for other moving vehicles in the area where the map and traffic information have been acquired, and to continue charging in the searched other vehicles.

In addition, when the battery capacity of the unmanned aerial vehicle 200, which was previously responsible for performing maps and traffic information, is out of the normal state, disconnection of maps and traffic information having infrastructure characteristics occurs, so charging is required to compensate for this. Inquire whether there are other unmanned aerial vehicles (200) that can normally collect maps or traffic information after completion, and request acquisition of map and traffic information for the map and traffic information acquisition area of the unmanned aerial vehicle (200), It is preferable that another unmanned aerial vehicle 200 performs this to minimize the disconnection of information acquisition.

In this case, it is more preferable that the other unmanned aerial vehicle 200 is a preliminary unmanned aerial vehicle 200 having a longer flight time than the existing unmanned aerial vehicle 200 in charge of performing maps and traffic information.

Although the present invention has been shown and described with preferred embodiments as described above, it is not limited to the above embodiments, and to those skilled in the art within the scope of not departing from the spirit of the present invention Various changes and modifications will be possible.

200: unmanned aerial vehicle 300: driving vehicle
400: remote server 500: infrastructure charging device

Claims (9)

In the traffic information collection method using an unmanned aerial vehicle,
A first step of determining whether the unmanned aerial vehicle has received a traffic information acquisition signal;
a second step of acquiring map and traffic information and transmitting them to a remote server when the unmanned aerial vehicle receives a traffic information acquisition signal;
a third step of determining whether the battery capacity of the unmanned aerial vehicle is in a normal state;
a fourth step of determining whether there is a driving vehicle that can be charged when the capacity of the battery is out of a normal state using path information of the driving vehicle stored in the unmanned aerial vehicle;
A fifth step of charging the unmanned aerial vehicle by moving to the driving vehicle when there is a charging vehicle; and
A sixth step of re-performing the first step when the charging of the unmanned aerial vehicle is completed;
In the fifth step, the unmanned air vehicle continuously acquires map and traffic information using a sensor system mounted on the vehicle or the vehicle even when the vehicle is moved and charged. method.
According to claim 1,
The method of collecting traffic information using an unmanned aerial vehicle, characterized in that the unmanned aerial vehicle stores map and traffic information for a map and traffic information acquisition area in advance.
According to claim 2,
The traffic information collection method using an unmanned air vehicle, characterized in that the unmanned air vehicle compares the map and traffic information stored in advance with the acquired map and traffic information and transmits only changed information to the remote server.
According to claim 1
The traffic information collection method using an unmanned aerial vehicle, characterized in that the driving vehicle is a vehicle traveling on a designated route.
According to claim 3,
When the unmanned aerial vehicle moves to the driving vehicle and is charged, using the route information of the traveling vehicle traveling on a designated route so that the unmanned aerial vehicle does not deviate beyond a certain distance from the area where the map and traffic information of the unmanned aerial vehicle was acquired is being moved. A method for collecting traffic information using an unmanned aerial vehicle, characterized in that the vehicle is searched for and moved to continue charging.
delete According to claim 1,
The method of collecting traffic information using an unmanned air vehicle, characterized in that the location information of the driving vehicle is used as the location information for acquiring the map and traffic information when the unmanned air vehicle is charged.
According to claim 1,
The method of collecting traffic information using an unmanned aerial vehicle, characterized in that the unmanned aerial vehicle transmits the collected map and traffic information to the driving vehicle and transmits the collected map and traffic information to the remote server through a communication network of the driving vehicle.
According to claim 1,
In the fourth step, if the battery capacity is out of the normal state, it is inquired whether there are other fully charged unmanned aerial vehicles, and requests to acquire maps and traffic information for the map and traffic information acquisition area of the unmanned aerial vehicles A method for collecting traffic information using an unmanned aerial vehicle.