KR20170088594A - Drone to build a wireless network connection and Drone system using the same - Google Patents

Abstract

The present invention relates to a network drone, including: a solar battery hot-air balloon accommodated in a hot-air balloon accommodation portion and having a flexible solar cell on the surface thereof; a gas tank for supplying gas to the solar cell hot-air balloon; a moving portion for rotating a driving motor to generate a driving force; a wireless communication module for relaying wireless network connection to a peripheral area; a battery for storing charged power delivered from the solar cell hot-air balloon and providing driving power to the moving portion and the wireless communication module; and a control portion for controlling the moving portion to move to a predetermined destination, and when arrived at the predetermined destination, supplying the gas to the solar cell hot-air balloon accommodated in the hot-air balloon accommodation portion so as to control the solar cell hot-air balloon to expand and control the battery to be charged or discharged. Accordingly, the present invention provides a network drone and a drone system including the same, which build a wireless network while maintaining the position through a solar cell hot-air balloon.

Description

Technical Field [0001] The present invention relates to a drone for establishing a wireless network and a drone system using the same,

The present invention relates to a drones, and more particularly to a drones for establishing a wireless network.

Most of the major natural disasters such as typhoons, tsunamis, earthquakes, landslides, etc. are mostly disconnected from electric networks and communication networks. Therefore, it is difficult to communicate properly when relieving the disaster area, so it is not possible to supply relief items in the right place.

Currently, communication equipment is installed to connect the satellite communication network to the disaster area. However, if the road network is destroyed, it is difficult to move the communication equipment and it is difficult to establish the satellite communication network.

Therefore, although small mobile satellite communication equipment capable of being stored in a backpack or the like can be directly transported by a person has been developed, such mobile satellite communication equipment is also useless in areas where it is not directly accessible by people.

In addition, when a satellite communication network is used, there is a problem that transmission / reception speed is lowered because data must always be transmitted via a satellite.

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the above-described technical problems, and provides a network dron for establishing a wireless network while maintaining its position through a solar battery hot air balloon and a dron system including the same.

According to an embodiment of the present invention, there is provided a solar cell heating apparatus, comprising: a solar cell heating unit accommodated in a hot-air storage unit and having a flexible solar cell attached to a surface thereof; A gas tank for supplying gas to the solar cell hot air balloon; A moving part for rotating the driving motor to generate a driving force; A wireless communication module for relaying a wireless network connection to a peripheral area; A battery for storing charge power delivered from the solar battery hot air balloon and providing driving power to the moving unit and the wireless communication module; And controlling the movement of the moving unit to move to a predetermined destination and controlling the solar cell heating / heating port to expand so as to supply the gas to the solar cell heating / And an operation control unit for controlling discharge.

Further, according to another embodiment of the present invention, a plurality of network drones; And a base station for providing a connection to the plurality of network drones and controlling the operation of the plurality of network drones, wherein the base station is adapted to transmit the plurality of network drones to a predetermined destination, A plurality of network drones for relaying wireless network connections between adjacent network drones and transmitting the wireless mesh network to each of the base stations and the wireless mesh network, A dron system is provided which is characterized by connecting a network.

In addition, after the base station detects a data transmission amount of the plurality of network drones, the base station distributes additional data drones to the periphery of the network dron where the data transmission amount of the plurality of network drones exceeds the limit capacity, And a control unit.

The base station is characterized by automatically adjusting the interval between the network drones so that the data transmission amount does not exceed the limit capacity after detecting the data transmission amount of the plurality of network drones.

Each of the plurality of network drones inflates the solar battery hot air balloon when it arrives at a predetermined destination, thereby maintaining the position of the destination.

The plurality of network drones may each include a solar cell heating unit accommodated in a hot air balloon compartment and having a flexible solar cell attached on a surface thereof; A gas tank for supplying gas to the solar cell hot air balloon; A moving part for rotating the driving motor to generate a driving force; A wireless communication module for relaying a wireless network connection to a peripheral area; A battery for storing charge power delivered from the solar battery hot air balloon and providing driving power to the moving unit and the wireless communication module; And controlling the movement of the moving unit to move to a predetermined destination and controlling the solar cell heating / heating port to expand so as to supply the gas to the solar cell heating / And an operation control unit for controlling the discharge.

A drones for constructing a wireless network according to an exemplary embodiment of the present invention and a dronesystem including the drones may move a plurality of network drones to predetermined destinations and then construct a wireless mesh network on the ground where each network dron is located Therefore, network network can be provided to a wide range of disaster areas.

In addition, the network drones can expand the solar hot-air balloon to arrive at a preset destination, maintain the position, and charge the battery with the charging power, thereby increasing the operating time.

1 is a configuration diagram of a drone system according to an embodiment of the present invention;
Figure 2 is an example of an arrangement of network drones disposed over a destination;
3 is a detailed configuration diagram of the network drones of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention.

1 is a configuration diagram of a drone system according to an embodiment of the present invention.

The drone system according to the present embodiment includes only a simple structure for clearly explaining the technical idea to be proposed.

Referring to FIG. 1, a dron system includes a plurality of network drones 10 and a base station 20.

The detailed configuration and main operation of the dron system constructed as above will be described below.

The plurality of network drones 10 are configured to be able to move through the sky. Therefore, it can be easily dispatched to areas such as disaster areas where road networks are destroyed or people and equipment are difficult to access.

The base station 20 provides a connection to a plurality of network drones 10 and controls the operation of the plurality of network drones 10.

The base station 20 moves the plurality of network drones 10 to a predetermined destination. The plurality of network drones 10 are arranged at predetermined intervals, and then the wireless mesh network 10 .

At this time, the plurality of network drones 10 relays the wireless network connection between adjacent network droners and connects the base station 20 and the wireless mesh network. A user 30 located on the ground can access a wireless network provided by the network drones located above the device and use a device such as a mobile phone, a smart phone, a smart pad, etc., which can be used by the user while using a computer.

That is, the base station 20 dispatches a plurality of network drones 10 to a destination for providing a wireless network. In order to relay the wireless network connection between adjacent network droners by adjusting the interval between the plurality of network drones 10 .

The base station 20 confirms the positions of the plurality of network drones 10 and then transmits test data to the network drones closest to the base station 20 to check the signal strength and the transmission speed. At this time, the network drones that have received the test data relay the test data to the neighboring network drones and continuously transmit the test data to the network drones farthest from the base station 20. In addition, the network drones farthest from the base station 20 continuously transmit the test data toward the base station 20.

After transmitting the test data to all the network drones, the base station 20 confirms the signal strength and the transmission speed, and then rearranges the intervals between the plurality of network drones 10 so as to reach the target signal strength and transmission speed Or dispatch additional network drones.

For reference, the base station 20 confirms its position through the satellite position information of the plurality of network drones 10. The position of the network drones can be more closely grasped by further considering the data transmission strength between the respective network drones and the moving speed of the network drones . Also, if the satellite position information is not received, the position may be determined by considering the data transmission strength and the moving speed of the network drones between the respective network drones.

In addition, the base station 20 senses the data transfer amount of the plurality of network drones 10 in real time, and then dispatches additional network drones to the periphery of the network drones where the data transfer amount of the plurality of network drones 10 exceeds the limit capacity. So as to disperse the data transmission amount.

In addition, the base station 20 may control the automatic adjustment of the interval and altitude between the network drones so that the data transmission amount does not exceed the limit capacity, after detecting the data transmission amount of the plurality of network drones 10. [

That is, the base station 20 checks the data transfer amount between the user 30 and each network dron and the data transfer amount between each network dron in real time, and when the data transfer amount exceeds the limit capacity, It is possible to increase the data transmission amount by enlarging the bandwidth of the channel by narrowing down the interval between the network drones so as to strengthen the signal strength and to increase the data transmission amount by enlarging the bandwidth of the channel.

Each of the plurality of network drones 10 can inflate the solar battery hot air balloon to maintain the position of the destination when arriving at a predetermined destination. That is, since the network drones can maintain the position using the solar battery hot air balloon after arriving at the destination, it is possible to extend the drivable time by using the charging power provided from the solar battery hot air ball while consuming a small amount of electric power.

2 is an exemplary diagram of an arrangement of network drones disposed over a destination.

Referring to FIG. 2, an array of network drones arriving at the first destination of FIG. 1 is shown. FIG. 2 is a view of the dron above the first destination when viewed downward.

That is, the network drones arriving at the first destination may be arranged essentially two-dimensionally to provide a network connection to the user 30 located on the ground.

The positions of the plurality of network drones arranged above the first destination can be automatically arranged in consideration of the data transmission amount, the data transmission speed, the network service area, and the number of connections. At this time, it is preferable that the height of the network drones is automatically adjusted corresponding to the altitude of the terrain. That is, basically, the altitudes of the plurality of network drones are controlled to maintain a certain distance from the ground, and the altitude of the network drones can be automatically controlled in consideration of the data transmission amount and the transmission speed.

3 is a detailed configuration diagram of the network drones of FIG.

The network drones 1 according to the present embodiment include only a simple configuration for clearly explaining the technical ideas to be proposed.

3, the network drones 1 include a solar cell heating unit 100, a hot air balloon storage unit 200, a battery 300, a gas tank 400, a moving unit 500, A module 600, and an operation control unit 700.

The detailed configuration and main operations of the network drones 1 configured as described above will be described below.

The solar battery hot air balloon 100 is housed in a hot air balloon storage unit 200, and a flexible solar cell is attached to the surface. The solar battery hot air balloon 100 is stored in the balloon storage unit 200 while the network drones 1 are moving to a destination, and when the network drones 1 reach the destination, they are inflated to maintain the current altitude.

At this time, since the flexible solar cell is attached to the surface of the solar cell hot air balloon 100, solar energy is converted into electric energy to generate charging power. At this time, the solar battery hot air balloon 100 can be manufactured by applying a solar cell paint to a certain thickness.

The gas tank 400 supplies gas to the solar cell heating device 100. The gas tank 400 is filled with a gas capable of maintaining the altitude by expanding the solar cell heating device 100. Generally, hydrogen gas, helium gas, or the like can be used.

The gas tank 400 may be composed of a plurality of gas tanks such as a main gas tank and an auxiliary gas tank. The main gas tank is used for the first time to inflate the solar cell heating element 100, and the auxiliary gas tank is maintained at a certain altitude Can only be distinguished for use.

The moving part 500 rotates the driving motor to generate a driving force. The moving unit 500 is configured to move the network drones 1 to a destination quickly by generating driving force using a driving motor and a plurality of propellers. That is, the moving unit 500 is driven when the network drones 1 move to a predetermined destination as a main propelling unit that moves while maintaining the balance of the network drones 1.

The wireless communication module (600) relays the wireless network connection to the peripheral area. The wireless communication module 600 is connected to the wireless communication module of the adjacent network drones and exchanges data with the base station 20, thereby establishing a wireless mesh network on the ground where each network drones are located.

The battery 300 stores the charging power transmitted from the solar cell heating unit 100 and provides the driving power to the moving unit 500 and the wireless communication module 600. The battery 300 may be divided into a main battery and a secondary battery, which may be configured to provide driving power to the moving part 500 and the secondary battery to independently provide driving power to the wireless communication module 600 have.

For reference, the battery 300 may be composed of a plurality of pseudo capacitors. Pseudo capacitors have advantages over conventional capacitors because they use a two-dimensional oxidation-reduction reaction at electrodes and have a relatively long storage life. The battery 300 having a plurality of pseudo-capacitors has a life of more than 200,000 years (100,000 cycles) at a temperature of 20 to 25 degrees Celsius, and a life of more than 50 years (6,000 cycles) at a temperature of less than -30 degrees Celsius / 60 degrees Celsius.

The operation control unit 700 controls the moving unit 500 to move to a predetermined destination and supplies gas to the solar cell heating / heating unit 100 stored in the hot-air storage unit 200 upon arrival at a predetermined destination, Controls the battery hot air balloon 100 to be inflated, and controls the charging and discharging of the battery 300. When the solar battery hot air balloon 100 is accommodated in the balloon storage unit 200, the moving speed is increased, so that it can be quickly arrived at the destination, and the solar battery heating balloon 100 is expanded after reaching the destination, .

Meanwhile, the operation control unit 700 may be configured to selectively charge at least one of the plurality of pseudo-capacitors according to the magnitude of the charge power. The charging method will be described in detail as follows.

It is assumed that when three pseudo-capacitors are arranged, that is, a first pseudo capacitor, a second pseudo capacitor, and a third pseudo capacitor are arranged. It is assumed that the charge capacity of the first pseudo capacitor is the largest, the charge capacity of the second pseudo capacitor is smaller than that of the first pseudo capacitor, and the charge capacity of the third pseudo capacitor is smaller than that of the second pseudo capacitor.

The size of the charging power is changed according to the intensity of the solar energy. The charging power is divided into the first period, the second period and the third period based on the magnitude of the charging power. That is, the first interval is the interval in which the charging power is the largest, the second interval is the interval in which the charging power is relatively smaller than the first interval, and the third interval is the interval in which the charging power is relatively smaller than the second interval.

The operation control unit 700 charges the first pseudo capacitor in the first section while charging the second pseudo capacitor in the second section while sensing the magnitude of the charge power, and when the third pseudo capacitor is in the third section, Charge. That is, as the charging power increases, the capacitor having a larger capacity can be charged first to improve the charging efficiency.

At this time, when the second pseudo capacitor is buffered, the operation control unit 700 adjusts the charge priority order so that the capacitor having the smallest capacity among the remaining pseudo capacitors is charged first.

Meanwhile, the operation controller 700 senses the charged amount of the first pseudo capacitor, the second pseudo capacitor, and the third pseudo capacitor, and transmits the power of the capacitor to the mobile unit 500 and the wireless communication module 600, .

For example, when the charge amount of the first pseudo capacitor is 60%, the charge amount of the second pseudo capacitor is 70%, and the charge amount of the third pseudo capacitor is 80%

The power of the third pseudo capacitor is firstly supplied to the moving unit 500 and the wireless communication module 600. When the charged amount reaches 40%, the power supply of the third pseudo capacitor is interrupted and the power of the second pseudo capacitor is shifted (500) and the wireless communication module (600). When the charged amount of the second pseudo capacitor reaches 40%, the power supply of the second pseudo capacitor is interrupted, and the power of the first pseudo capacitor is supplied to the mobile unit 500 and the wireless communication module 600.

When all the charged amounts of the first to third pseudo capacitors are 40% or less, the operation control unit 700 connects the first to third pseudo capacitors in parallel to the moving unit 500 and the wireless communication module 600 Power supply.

When the first pseudo capacitor having the largest charge capacity is charged to 90% or more, the operation control unit 700 transmits the charge power of the first pseudo capacitor to the second and third pseudo capacitors in a state where the charge amount is maintained at 90% do.

The operation control unit 700 determines the expected use time in consideration of the charged amount of the battery 300 and the current consumption power of the mobile unit 500 and the wireless communication module 600 when receiving the target usage time from the base station 20 . If the expected usage time is smaller than the target usage time, the operation control unit 700 restricts or adjusts the movement speed of the movement unit 500 and the data transmission rate of the wireless communication module 600, Automatically control over time.

When the driving force of the moving part 500 is instantaneously increased due to the strong external wind speed, the operation control part 700 automatically moves the altitude gradually to the highest altitude with the lowest external wind speed. At this time, the external wind speed can be indirectly grasped through the driving power magnitude of the moving part 500 operating to maintain the current position.

The operation controller 700 stores the temperature of the solar cell heating unit 100 in real time while sensing the temperature of the solar cell heating unit 100 for 48 hours,

If the temperature similarity for each time period of 2 hours in the daytime temperature group has a similarity to the stored temperature data of 80% or more, the predicted temperature of the hot air balloon is calculated based on the stored temperature data, and then the altitude is adjusted in advance.

That is, since the temperature of the solar battery hot air balloon 100 rises as the temperature increases and the temperature tends to decrease as the temperature decreases, the altitude is lowered in advance when the temperature rise is expected based on the stored data, The use frequency of the gas tank 400 and the use of the driving power can be reduced. In particular, the operation control unit 700 can raise the altitude in advance before the solar energy reaches the night time zone where the solar energy is weakened, thereby reducing the use of the drive power.

For reference, network drones may be equipped with various cameras and sensors such as a video camera, an infrared camera, an ultraviolet camera, a temperature sensor, a humidity sensor, an altitude sensor, and a position sensor.

A drones for constructing a wireless network according to an exemplary embodiment of the present invention and a dronesystem including the drones may move a plurality of network drones to predetermined destinations and then construct a wireless mesh network on the ground where each network dron is located Therefore, network network can be provided to a wide range of disaster areas.

In addition, the network drones can expand the solar hot-air balloon to arrive at a preset destination, maintain the position, and charge the battery with the charging power, thereby increasing the operating time.

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: Multiple network drones
20: Base station
30: User
1: Network drones
100: Solar battery hot air balloon
200: Hot air balloon compartment
300: Battery
400: gas tank
500:
600: Wireless communication module
700:

Claims (6)

A solar battery hot air balloon housed in a hot air balloon compartment and having a flexible solar cell on its surface;
A gas tank for supplying gas to the solar cell hot air balloon;
A moving part for rotating the driving motor to generate a driving force;
A wireless communication module for relaying a wireless network connection to a peripheral area;
A battery for storing charge power delivered from the solar battery hot air balloon and providing driving power to the moving unit and the wireless communication module; And
The control unit controls the moving unit to move to a predetermined destination and controls the solar battery heating unit to be expanded by supplying gas to the solar cell heating port stored in the hot-air storage unit when a predetermined destination is reached, An operation control unit for controlling the operation unit;
≪ / RTI >
A plurality of network drones; And
And a base station providing connection to the plurality of network drones and controlling operation of the plurality of network drones,
Wherein the base station arranges the plurality of network drones so as to have predetermined intervals in each of the plurality of network drones to a predetermined destination and controls the wireless mesh network to be established on the ground where each network dron is located,
Wherein the plurality of network drones relay the wireless network connection between adjacent network droners to connect the base station to the wireless mesh network.
3. The method of claim 2,
The base station comprises:
Detecting a data transmission amount of the plurality of network drones,
Wherein the controller controls to distribute the data transmission amount by dispatching additional network drones to the periphery of the network drones where the data transmission amount of the plurality of network drones exceeds the limit capacity.
3. The method of claim 2,
The base station comprises:
Wherein the distance between the network drones is automatically adjusted so that the data transmission amount does not exceed the limit capacity after sensing the data transmission amount of the plurality of network drones.
3. The method of claim 2,
Each of the plurality of network drones includes:
And the solar battery hot air balloon is inflated upon arrival at a predetermined destination to maintain the position of the destination.
3. The method of claim 2,
Each of the plurality of network drones includes:
A solar battery hot air balloon housed in a hot air balloon compartment and having a flexible solar cell on its surface;
A gas tank for supplying gas to the solar cell hot air balloon;
A moving part for rotating the driving motor to generate a driving force;
A wireless communication module for relaying a wireless network connection to a peripheral area;
A battery for storing charge power delivered from the solar battery hot air balloon and providing driving power to the moving unit and the wireless communication module; And
The control unit controls the moving unit to move to a predetermined destination and controls the solar battery heating unit to be expanded by supplying gas to the solar cell heating port stored in the hot-air balloon storage unit upon arrival at a predetermined destination, And an operation control unit for controlling the operation of the drones.

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