KR20190065880A - System for Alarm Broadcasting using UAS - Google Patents

Abstract

According to the present invention, in the event of a disaster, an alarm broadcasting system using an unmanned aerial vehicle allows to rapidly spread situation of the disaster to shadow and blind spots of the alarm, such as disaster areas, inside buildings in major institutions and densely populated areas, and mountainous areas. Therefore, alarm situation may be transmitted to residents in the buildings and non-receivers of the alarm in the mountainous areas that existed as shaded areas of conventional alarm broadcasting system, thereby allowing proactive respond to the alarm situation to reduce or prevent personal injury and property loss.

Description

{System for Alarm Broadcasting using UAS}

The present invention relates to an alarm broadcasting system using an unmanned aerial vehicle, and more particularly, to an alarm broadcasting system using an unmanned aerial vehicle, To an alarm broadcast system using an unmanned aerial vehicle.

Disaster disasters can occur anywhere in the nation in a variety of forms such as tsunami, flood, heavy snowfall, and earthquake, and if people do not inform them quickly, they will cause a lot of damage to people and property.

In general, the alarm facility is a device that spreads the alarm situation to the residents by installing an alarm facility on the roof of a large building in a densely populated area and using a large output amplifier to sound the siren.

However, such an alarm facility causes diffraction and reflection of sound due to the high-rise buildings in the high-rise buildings. In particular, the large-output amplifier generates echo due to reflection, To the user.

Also, even though the alarm facility is installed on the roof, the alarm condition is not transmitted to the residents in the building due to the soundproofing of the building even if the siren rings.

In addition, people in the blind areas and shaded areas where alert broadcasts have not been delivered, such as mountainous areas where there are not many populations, can not listen to alarm broadcasts.

In order to solve such a problem, conventionally, "indoor alarm system" of Korean Patent Registration No. 10-1190113 (publication date Oct. 16, 2012) has been disclosed.

A conventional indoor alarm system includes a case installed in a room, a wireless communication unit provided inside the case and receiving a flood signal from a central control station or an external immersion alarm, a speaker installed inside the case and outputting an alarm sound And a control unit connected to the wireless communication unit and the speaker unit inside the case and receiving a flood signal inputted to the wireless communication unit and outputting an alarm sound output signal to the speaker unit.

In the conventional indoor alarm system having the above-described configuration, an alarm sound is output from indoor in a limited use for delivering an alarm situation such as a flood situation occurring in the open air, and the alarm situation can be delivered to a person in the house.

However, the conventional indoor alarm system has a problem in that the awareness of the alarm condition is deteriorated when the alarm condition occurs because the alarm condition is transmitted only by a method in which the alarm sound is emitted without transmitting the alarm condition information about the reason for the alarm sound .

In addition, since the alarm condition is transmitted in a way that an alarm sound is emitted without transmitting the alarm condition response information, the general residents except the equipment operator have no way to cope with the alarm situation, causing confusion in the alarm situation.

Korean Registered Patent Publication No. 10-1190113

Disclosure of Invention Technical Problem [10] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a disaster- So that it can actively cope with the alarm situation by communicating the alarm situation to residents in the building which existed in the shaded area in the existing method of alarm propagation so as to reduce or prevent loss of life and property loss And an alarm broadcast system using the unmanned aerial vehicle.

According to another aspect of the present invention, there is provided an alarm broadcasting system using an unmanned aerial vehicle, which receives sensing data from a disaster detection sensor including an earthquake sensor, a typhoon sensor or a flood sensor, A central control station for judging a written disaster situation and transmitting the disaster alarm through the wireless communication network such as VHF; An alarm system that is installed inside the building and that receives a disaster alarm through the VHF communication network from the central control station and transmits the disaster alarm broadcast to the communication means inside the building and communication means outside the building using the VHF communication network, When a disaster alarm is transmitted through the wireless communication network such as VHF from the central control station while performing an autonomous flight corresponding to a local area, the emergency alarm signal is transmitted to the alarm system using the VHF communication network, And an unmanned aerial vehicle configured to detect a disaster situation based on the acquired information and transmit the disaster situation to a central station via a wireless communication network such as VHF.

The unmanned aerial vehicle can be wirelessly communicated with a central station and an alarm system in a relayed manner through a relay device that provides a VHF communication network service.

The unmanned aerial vehicle may be configured to autonomously fly by using GPS reception data without departing from a predetermined area.

The unmanned aerial vehicle includes at least one sensor for acquiring image information and surrounding information. The unmanned aerial vehicle compares a value sensed by the sensor with a preset reference value. If the sensor senses a value exceeding the preset reference value, It can be determined that the situation is appropriate and the disaster information can be transmitted to the central control station.

The unmanned aerial vehicle senses the remaining amount of the battery, calculates an amount of energy required for returning to the predetermined charging place, and controls the amount of energy required for returning from the remaining amount of the battery to be less than a preset threshold value So that battery power can be saved.

According to the alarm broadcasting system using the unmanned aerial vehicle of the present invention as described above, the unmanned aerial vehicle that manages a predetermined unmanned area in the event of a disaster, By transmitting the alarm situation to the residents in the building and the unhealthy people in the mountain area that existed in the shaded area of the existing type of alarm propagation by transmitting the disaster situation by the shadow broadcast and the blind spot like the area, It is possible to actively cope with the situation, thereby reducing or preventing loss of life and property loss.

1 is a diagram illustrating an alarm broadcasting system using an unmanned aerial vehicle according to an embodiment of the present invention,
2 is a diagram illustrating an alarm broadcasting system constituting an alarm broadcasting system using an unmanned aerial vehicle according to an embodiment of the present invention,
FIG. 3 is a block diagram illustrating an alarm broadcasting system using an unmanned aerial vehicle according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred 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 present invention.

1, an alarm broadcasting system using an unmanned aerial vehicle according to an embodiment of the present invention receives sensing data from a disaster detection sensor including an earthquake sensor, a typhoon sensor or a flood sensor, A central control station 100 for judging a disaster situation when a data value is exceeded and transmitting a disaster alarm through the wireless communication network such as VHF, and a central control station 100 installed inside the building. The central control station 100 receives a VHF An alarm system 500 for transmitting a disaster warning broadcast to the communication means inside the building and the communication means outside the building by using a wireless communication network such as VHF when receiving the emergency alert through the communication relay apparatus 300, (VHF) from the central control station 100 while performing an autonomous flight corresponding to the range Upon receipt of a disaster alarm through the VHF communication relay device 300 through a trust, the disaster alarm signal is transmitted to the alarm system using the VHF communication network, or the image information and the surrounding information are acquired, And an unmanned object (900) configured to detect a disaster situation and transmit it to a central station (100) via a VHF communication relay device (300) via a wireless communication network such as a VHF.

For reference, since wireless communication such as VHF is likely to cause errors due to analog communication rather than digital communication during wireless communication, an error control method is introduced, and error control methods include forward error correction Correction and Backward Error Correction.

In the case of wireless communication, there is difficulty in retransmission. Therefore, forward error correction method is mainly used and there is a hamming code method in a typical method of forward error correction method.

In the Hamming code scheme, an even parity detection code is added to a combination of frames. A bit in which an error is detected is used as a method of correcting an error by finding a corresponding position and a normal value using an even parity calculation method.

The central station 1000 may be comprised of a mobile station 200 mounted on a vehicle.

The disaster alarm transmitted from the central station 100 includes a siren device 710 composed of a plurality of alarm sirens for generating a siren for a disaster alarm through the VHF communication network, and a TV broadcast connection device for broadcasting for a disaster alarm A TV broadcasting unit 730, a radio broadcasting unit 750 comprising a radio broadcasting connection device for broadcasting a disaster alarm, or a mobile communication company providing character service for a disaster alert.

The siren device 710 may include a plurality of alarm sirens on the ground surface, or a plurality of alarm sirens on the roof of the building.

The alarm system 500 includes a 32-bit RISS microprocessor, a Cortex-M3 processor and the like. The non-OS application program can be implemented and various I / O, Serial (UART) A wireless communication unit 520 for receiving a disaster alarm transmitted through the relay device 300, a wired amplifier unit 530 for communication inside the building, a wireless modem unit 540 for communication outside the building, An operation module unit 550, a power supply unit 560, a VHF wireless amplifier unit 590, and a control module unit 510 for performing various controls.

The alarm system 500 may include a built-in memory, an external memory, a UART (serial) connection terminal, a USB connection terminal, and a digital I / O.

The front of the box-shaped enclosure is equipped with LEDs that display equipment status, transmission line status, operating status, and amplifier output status, and are equipped with operation switches such as a microphone change switch, RS-232C port for A / A microphone connection terminal, an external memory connection terminal, a microphone volume control terminal, a monitor speaker volume control terminal, and a speaker.

On the rear of the box-shaped enclosure, there are AC power input terminal, On / Off switch, speaker output terminal, REMOTE VHF antenna, LOCAL VHF antenna, Digital I / O terminal, Audio LINE OUT terminal, And an output terminal.

The power supply unit 560 is configured to supply power while having a stable frequency of 60 Hz of 220 V. The charger 560 has a variable voltage of 180 V to 300 V and a frequency variation of 50 Hz to 60 Hz, .

The charger for the power supply unit 560 is provided with a switching mode power supply SMPS, an input / output voltage status LED, a charging status LED, a charging voltage adjustment point, and an output cutoff switch. The input voltage is AC 180V to 260V + 12VDC / 5A, + 3.3VDC / 1A, ± 12VDC / 0.4A for control output, + 27.2VDC / 5A for charge output, Surge protection voltage is 3KV, 500A, overvoltage protection is 110% ~ 130%, overcurrent protection (ripple) / noise is less than 50mVrms / 100mVrms and charging method is floating charge And the noise emission field intensity is 30.5 MHz to 88 MHz 29.5 dBμV / M, 88 MHz to 216 MHz 34 dBμV / M, 216 MHz to 1 GHz - 37 dBμV / M from 110 MHz to 150 MHz, Conduction Emission from 60 kHz to 1.6 MHz 60 dBμV, 1.6 MHz to 30 MHz to 70 dBμV And can be configured with the following standards.

The wired-line amplifier unit 530 generates a warning about a disaster through a speaker installed in the building, communicates a disaster alarm to the broadcasting system in the building in cooperation with the broadcasting system in the building, .

The broadcasting system in the building is connected to a VHF receiving device for receiving disaster related signals included in the VHF, a wireless receiving device for receiving disaster related signals included in a wireless communication network such as a mobile communication network and Wi-Fi, A wired receiving device for receiving a disaster related signal included in the wired communication network, a satellite receiving device for receiving a disaster related signal included in the satellite signal, a disaster related signal transmitted in the character data to a voice signal, A TRS receiving apparatus for converting a disaster related signal into character data and receiving the disaster related signal, and the like.

The radio modem unit 540 is operated to communicate with the VHF radio unit. The radio modem unit 540 transmits the disaster alarm information transmitted from the control module unit 510 to the VHF radio or receives voice data from the VHF radio unit, (510).

VHF transceivers are frequency-modulated, with a usable frequency range of 136MHz to 174MHz, more than 16 channels, 12.5KHz / 25KHz channel spacing, an antenna impedance of 50Ω, frequency stability of within ± 2.5 PPM, ) Is 20dB or more when 70% modulation is performed at 1KHz, 20dB noise is suppressed when receiving sensitivity is 1μV or less, and voice output is 50mW (8Ω).

VHF radio supports Fleetsync format, has the function of monitoring COR and TOR status, and encrypts data by applying AES algorithm.

The control module unit 510 transmits the voice data transmitted from the VHF transceiver to the central station 100 via the VHF communication network through the wireless communication unit 520.

The VHF module is provided in the control module unit 510 to manage the VHF radio unit and the VHF wireless amplifier unit 590.

The VHF wireless amplifier unit 590 drives a wireless speaker so that a disaster alarm is transmitted to a wireless speaker installed outside the building so that a disaster alarm can be limitedly transmitted outside the building.

The wired amplifier unit 530 and the VHF wireless amplifier unit 590 are digital amplifiers that amplify audio output using a digital chip without an analog circuit such as a transistor. The digital amplifier is small in size, generates less heat, So that the status can easily be confirmed.

For reference, the specifications of the wired amplifier unit 530 and the VHF wireless amplifier unit 590 are rated power of 100W or less, channel and capacity of 2CH, maximum 150W, audio input of S / PDIF, 2V / 10KΩ balanced, 90% or more, 90% or more of sound (Sine Wave 1KHz input), distortion (THD) is less than 1%, SNR is more than 70dB, audio output is less than ± 3dB : 100 ~ 20,000Hz) and the power source is + 36VDC ~ + 60VDC.

The control module unit 510 controls the operation of the wireless communication unit 520, the wired amplifier unit 530, the wireless modem unit 540, the operation module unit 550, the power supply unit 560, and the VHF wireless amplifier unit 590 (Keep Alive Checking), and the configuration determined to have an error as a result of the check is retryed and checked for operation.

If it is determined that the error has not been solved even though the operation is repeatedly checked, the initialization process (Interface Initialization) of the corresponding configuration is performed. If it is determined that the error has not been solved even after initialization, the alarm system 500 is reset System reset) in order to check whether the operation is performed.

The alarm system 500 records a history of the operating state and the error state so that the manager can check the data later.

In order to control the VHF wireless amplifier unit 590, the control module unit 510 sequentially transmits frames having a sequence number to the VHF module. The control module unit 510 continuously transmits three frames and waits for a response.

Then, when all the responses of the three frames are received, the next three frames are transmitted.

However, if three frames are continuously transmitted but there is no response, the sequence number is confirmed and retransmitted sequentially.

If there is no response from the second frame, the process of sequentially retransmitting from the second frame proceeds.

If retransmission is attempted three times in succession, it performs initialization (Chip Initialize) and retransmits if it fails.

If the frame transmission fails even after initialization and retransmission, the operation is performed after the control fault processing, and the alarm system 500 is restarted one hour after the idle standby.

All these failures are recorded as history so that they can be checked and managed later by the administrator.

The unmanned air vehicle 900 is wirelessly communicated with the central station 100 and the alarm system 500 in a relayed manner through a relay device 300 that provides a VHF communication network service.

If the unmanned air vehicle 900 is in the vicinity of the central station 100 and is in flight, direct communication with the central station 100 can be performed without passing through the relay device 300. Similarly, 500, it is possible to communicate directly with the alarm system 500 without going through the relay device 300.

3, the unmanned air vehicle 900 includes a wireless receiving unit 921 for receiving a wireless signal, a position receiving unit 923 for receiving a position signal, an image capturing unit 925 for capturing an image, A wireless transmission unit 951 for transmitting a radio signal, a flight control unit 953 for controlling the flight of the unmanned air vehicle 900, an alarm for generating an alarm for a disaster situation, A generating module 955, a grab module module 957 equipped with lifesaving equipment, a fall preventing part 959 for preventing the user from falling down to the ground, and a main controller module 910 for performing various controls .

The position receiving unit 923 is a module for grasping the position of the unmanned air vehicle 900 using GPS reception data, and the unmanned air vehicle 900 is configured to autonomously fly without departing from a preset area by using GPS reception data do.

The unmanned aerial vehicle 900 transmits position information, attitude information and altitude information during flight, still image or moving image data captured through the image capturing unit 925, voice data, and sensing data to the central station 100 And receives an operation command related to flight control of the unmanned air vehicle 900 from the central station 100. [

The image capturing unit 925 includes a camera for capturing an image, and includes a visible ray camera, an infrared camera, an ultrasound sensor, a light detection and ranging (LIDAR), a SAR (Synthetic Aperture Radar) (Microphones).

The visible light camera is used for flame, smoke detection, immersion detection, and surface change detection that can be detected in the visible light band, and captures and stores still images and moving images.

Infrared (thermal) cameras can detect flames and heat sources and detect surface temperatures through temperature measurements.

The ultrasonic spectroscopic sensor can acquire the spectral characteristics of the surface water. It can detect the smoke and the heat source, and detect the immersion paper to confirm the moisture and vegetation cover of the soil.

Lada can measure the distance using a laser. Through this, the unmanned air vehicle 900 can detect smoke and terrain change, and can detect surface roughness and the like.

The SAR can detect an object or measure a distance by using a frequency band of microwave, radio wave or the like. Through this, it is possible to detect a plant, detect a terrain change and a surface roughness.

In addition, the unmanned air vehicle 900 can be equipped with an environmental sensor for collecting temperature, humidity, wind direction and wind speed, and is equipped with a microphone (microphone) to detect emergency data such as explosion sound, The unmanned vehicle 900 may move to the position of emergency data related to the emergency situation and monitor the situation of the corresponding location or may track the target by combining the image data and the voice data.

As described above, the unmanned aerial vehicle 900 generates surveillance information by photographing and monitoring an image while flying within a preset area, transmits the surveillance information to the central station 100 in real time, Compares the image data with a preset reference value, and when the photographed image data exceeds a predetermined reference value, it is determined that the image data corresponds to a disaster situation, and the disaster information is transmitted to the central station 100.

The judgment that corresponds to a disaster situation can analyze the image data by at least one analysis method among the machine learning based analysis, the combination analysis of a plurality of image data, and the linkage analysis with the sensing data.

In addition, the image data can be analyzed using the image data corresponding to the voice data, and the occurrence of the disaster can be determined using the analysis result of the image data.

For example, in the unmanned aerial vehicle 900, the image data is analyzed by removing the noise of the photographed image data, performing a preprocessing process for performing correction, and extracting image feature points and ROI Interest can be detected and image data analysis can be performed.

The solar module module 927 generates driving power of the unmanned air vehicle 900 using solar light, detects the remaining battery power of the unmanned air vehicle 900, calculates a distance to a predetermined charging place, And when the value of the remaining amount of the battery excluding the amount of energy required to return from the remaining amount of the battery is less than a preset threshold value, the drop prevention unit 959 is driven to save battery power.

When the propeller is stopped due to the lack of the battery of the unmanned air vehicle 900, the balloon of the unmanned air vehicle 900 can be prevented from falling due to buoyancy of the balloon filled with the helium gas, Can be prevented from falling to the ground.

And outputs a driving signal so that the safety device 150 such as a parachute built in the UAV 100 is operated.

In addition, the fall preventing unit 959 spreads in the form of a parachute when the crash state of the unmanned air vehicle 900 occurs, so that the impact is minimized when the unmanned air vehicle 900 falls and touches the ground.

The flight control unit 953 senses the flight attitude of the unmanned aerial vehicle 900 such as takeoff and landing and navigation and transmits the flight information to the central station 100. The flight control unit 953 is provided with an acceleration sensor, a gyro sensor, Sensors and the like.

The alarm generator 955 can generate a notification of a disaster alert through a video output or audio output to the user, such as a siren or a warning light, Conversation connection, and so on.

The grab module unit 957 is equipped with rescue equipment such as an ambulance, a fire extinguisher, a life jacket tube, and a simple fire extinguisher. For example, if an isolated victim of a forest fire occurs, A fire extinguisher, a fire extinguisher, and a fire extinguisher can be provided.

The main control module 910 is a module for controlling a series of processes related to transmission / reception of control commands and control according to control from the central control station 100 when the unmanned air vehicle 900 is flying.

That is, it controls the execution process of a series of functions such as altitude, attitude and position information during flight of the unmanned aerial vehicle 900.

The central control station 100 is connected to the unmanned air vehicle 900 via a wireless communication network 500 such as a VHF communication network and is provided with information on the position, Real time flight information such as the flight time information of the unmanned air vehicle 900 is transmitted through the VHF communication network and the operation command related to the flight control of the unmanned air vehicle 900 is transmitted to the unmanned air vehicle 900 through the VHF communication network.

The central station 100 processes the image data, the sound data, and the sensing data, which are collected information received from the unmanned bar controller 900, generates the disaster alert information using the processed result, and transmits the generated disaster alert information to the VHF To the alarm system 500 via the communication network.

As described above, the alarm broadcasting system using the unmanned aerial vehicle according to the present invention can be linked with the earthquake early warning system installed in Mongolia which is vulnerable to disaster. In case of an earthquake or the like, the VHF communication network is used at the central station 100 To alert emergency disaster alarms quickly to real-time disaster situations within disaster-prone areas, major institutions and densely populated areas.

By doing so, it is possible to make a systematic disaster alarm system at the national level by transmitting emergency disaster situations in real time and prompting quick evacuation instructions and countermeasures so that disaster response can be speeded up.

According to the alarm broadcasting system using the unmanned aerial vehicle of the present invention as described above, the unmanned aerial vehicle that manages a predetermined unmanned area in the event of a disaster, By transmitting the alarm situation to the residents in the building and the unhealthy people in the mountain area that existed in the shaded area of the existing type of alarm propagation by transmitting the disaster situation by the shadow broadcast and the blind spot like the area, It is possible to actively cope with the situation, thereby reducing or preventing loss of life and property loss.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be readily apparent that various substitutions, modifications, and alterations can be made herein.

100: Central Control Station 200: Mobile Control Station
300: Relay device 500: Alarm system
710: a siren unit 730: a TV broadcasting unit
750: radio broadcasting section 900: unmanned aerial vehicle

Claims (5)

The center receives a sensing data from a disaster detection sensor including an earthquake sensor, a typhoon sensor or a flood detection sensor, determines that a disaster occurs when a predetermined sensing data value is exceeded, and transmits a disaster alarm through the VHF communication network Control station;
An alarm system installed inside the building and transmitting a disaster alarm broadcast through the VHF communication network to the communication means inside the building and the communication means outside the building using the VHF communication network when the emergency alarm is received from the central control station through the VHF communication network; And
When a disaster alarm is received from the central control station through the VHF communication network while performing an autonomous flight corresponding to a predetermined area range, the emergency alarm signal is transmitted to the alarm system using the VHF communication network, Acquire, acquire, and transmit the disaster situation to the central station through the VHF communication network based on the acquired information.
And an alarm broadcast system using the unmanned aerial vehicle. The alarm broadcasting system according to claim 1, wherein the unmanned aerial vehicle is wirelessly communicated with a central station and an alarm system in a manner relayed through a relay device that provides a VHF communication network service. The alarm broadcasting system according to claim 1, wherein the unmanned aerial vehicle is configured to autonomously fly without departing from a predetermined area using GPS reception data. [2] The apparatus of claim 1, wherein the unmanned aerial vehicle includes at least one sensor for acquiring image information and surrounding information, and compares the sensed value with a preset reference value, The system is configured to transmit the disaster information to the central control station. The unmanned aerial vehicle according to claim 1, wherein the unmanned aerial vehicle detects a remaining battery level, calculates an amount of energy required to return to a preset charging site, and calculates an amount of energy required for returning from the remaining battery level to a predetermined threshold value Wherein the alarming unit is driven so as to save power of the battery by using the unmanned aerial vehicle.

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