Anti drone automatic defense system Technical Proposal
1.System Overview
The deep integration of radar detection system, unmanned aerial vehicle radio detection and countermeasures integrated system, precision optoelectronic detection system in key locations can achieve early detection, fast locking, stable tracking, accurate identification and strong countermeasures against low altitude drones by comprehensively utilizing technologies such as multispectral detection, heterogeneous system interconnection, multi-source data fusion, intelligent analysis and decision-making. Multiple detection methods complement each other, and multiple frequency band interference interception can effectively ensure low altitude safety in key locations throughout the day, all time, and all dimensions. The system is mainly equipped for users such as public security, armed police, military, and government, and is commonly used for the prevention and control of drone targets in prisons/detention centers, large gatherings, public places, and military strongholds.
The integrated device for drone radio detection and countermeasures adopts Cognitive Radio Protocol Cracking (CRPC) technology. This technology accurately demodulates and deciphers the drone communication frequency band, channel information, and electronic ID through reverse analysis and cracking of the drone communication signal. Based on the obtained information, it defends and controls the "black flying" drone with precise control and full automatic real-time passive, blind angle, zero interference detection, and advanced warning functions; Using narrowband low-power to implement precise strikes, combined with broadband high-power interference, can effectively defend against drones; At the same time, it has the ability to distinguish between enemies and friends, precise identification, and unknown drone detection capabilities. The operating range radius of the DJI Elf 4 small drone is not less than 3km.
The radar detection system is a short-range low altitude surveillance radar that mainly searches for and tracks aerodynamic targets such as drones within a 5km range of low altitude airspace. It accurately monitors low, slow, and small targets in low altitude areas and can display and output information such as distance, orientation, speed, and altitude of flying targets, forming a three-dimensional motion pattern of low altitude targets. Has high reliability and the ability to automatically enroll targets, and monitors non cooperative and dangerous targets around key areas. Adopting advanced active phased array system, one-dimensional electrical scanning is used in the elevation direction and mechanical scanning is used in the horizontal direction, which can provide excellent low altitude, slow speed, and small target monitoring capabilities. The detection power for targets equivalent to the size of DJI Elf 4 drone is greater than 5km.
The precision optoelectronic detection system integrates a million telephoto high-definition camera, a large array uncooled infrared thermal imager, a precision servo turntable, and a high-precision tracking module. It can quickly and accurately capture, lock, track, and recognize low altitude targets such as drones under the guidance of radar detection system target information, providing intuitive visual assurance for radio interference and countermeasures. The turntable design adopts military quality, which has the characteristics of fast speed, high accuracy, and stable tracking. During the day, a long focal length continuous zoom lens is used in conjunction with a 2 million visible light high-definition color to black camera. At night, a 1280 × 1024 high sensitivity large aperture continuous zoom uncooled thermal imaging camera is used, which can achieve long-distance video monitoring throughout the day and night. Simultaneously equipped with optical and electronic dual fog penetration functions, it can effectively improve the detection performance in low visibility weather such as fog and haze. The overall shell is sealed with ultra strong aluminum alloy, and the entire machine is vacuum filled with nitrogen for sealing. The protection level reaches IP66, effectively ensuring the long-term operation of the equipment in harsh outdoor environments.
2.Radio detection and countermeasures system
2.1 Overview
The integrated device for drone detection and countermeasures adopts cognitive radio protocol cracking technology to solve the low altitude security system of domestic and foreign civil drone detection, identification, positioning, defense, and control. The system can perform passive detection, distinguish between friend and foe, precision strike or high-power interference on drones in protected areas, and provide the direction of drones. It can be used for low altitude security defense in airports, prisons, important bases, sports venues, and major events. Its important functions are as follows：
1) Able to use frequency detection methods to achieve drone detection;
2) Capable of detecting, locating, identifying, and tracking drones and drone pilots;
3) Capable of automatically detecting and detecting drones within an effective range, and automatically alerting detected drone signals;
4) Capable of achieving unmanned aerial vehicle detection and interference linkage, achieving unmanned operation；
5) Capable of identifying mainstream domestic brands such as DJI, Daotong, Xiaomi, Dahua, Hikvision, and Yihang, as well as mainstream foreign brands such as Holystone, AEE, Parrot, and 3DR；
6) Capable of automatically identifying drone types based on built-in sample libraries, and has the ability to continuously update drone model libraries, which contain drone characteristic signals. There are ≥ 80 brands and ≥ 200 models in the model library. Can add detected unknown Wi Fi drones and remote controls to the model library；
7) Capable of automatically interfering with drones within an effective range, causing them to land or return without entering the controlled area；
8）It has a whitelist (blacklist) function and does not require the use of third-party firmware such as wireless beacons or identification cards. It can add drones detected by detection devices to the whitelist through the system management platform. Detected drones on the whitelist should not trigger system alarm prompts. When the whitelist drones switch on/off, take off, or switch operating frequencies multiple times, they will not trigger alarms. They can accurately strike multiple drones of the same brand and model separately；
9）The software control platform can set the system language, supporting languages such as Simplified Chinese, English, French, and Russian；
10) The system is not affected by weather and operates 7d*24h；
11) Not causing interference to the human body and electronic devices。
2.2 Specification
1) Effective reconnaissance and identification distance: 5km;
2) Strike distance: 2-3km;
3) Can detect wireless signals with a frequency range of 25MHz to 6000MHz, and the detection frequency band can be set; Focus on detecting 433MHz, 900MHz, 1.4GHz, 2.4GHz, and 5.8GHz;
4）Counter frequency: Channel 1: (840 ± 15) MHz to (930 ± 15) MHz; Channel 2: (1535 ± 15) MHz to (1635 ± 15) MHz; Channel 3: (2380 ± 15) MHz to (2520 ± 15) MHz; Channel 4: (5130 ± 15) MHz to (5370 ± 15) MHz; Channel 5: (5725 ± 15) MHz to (5885 ± 15) MHz; Can increase frequency bands: 410-480MHz, 650-850MHz, 1080-1340MHz, 1080-1340MHz, 2300-2600MHz, 5950-6200MHz;
5) The number of drones that can be intercepted simultaneously: ≥ 30, among which the number of non DJI brand drones should be ≥ 25. The number of frequency hopping drone targets that can be interfered with simultaneously should be ≥ 10;
6) Direction accuracy: ≤ 10 degrees (following); ≤ 3 degrees (hovering)；
7) Power consumption: In the detection state, the power consumption should be ≤ 130W (AC 220V power supply); The power consumption when activating full frequency interference signals should be ≤ 1500W (AC 220V power supply)；
8）Minimum transmission power: ＜ 10W;
9）Protection level: IP66；
10) Reconnaissance airspace: 360 ° full airspace；
3.Radar detection system
3.1 Overview
The radar detection system adopts azimuth mechanical scanning and elevation digital beamforming system, which can continuously detect and track moving targets in the area all day and all weather. It has the advantages of high detection sensitivity, low false alarm rate, and high accuracy. The main functions of the product include:
① The detection radius of the Elf drone is ≥ 5km, the detection radius of personnel is ≥ 8km, the detection radius of vehicles and ships is ≥ 10km, the azimuth coverage range is 360 °, the pitch coverage range is 35 °, and the detection performance is not affected by climate and lighting;
② It can track over 150 moving targets in the field of view, output real-time information such as target distance, speed, direction, altitude, and type, and achieve suspicious target positioning and warning functions；
③ It can set up shielding and warning zones to achieve target crossing alarm, alarm log recording and playback；
④It can support radar optoelectronic linkage, guiding high-definition cameras to track, capture, and record videos of targets;
⑤ It has good compatibility and scalability, and is convenient for docking with other platforms, supporting multi device networking。
3.2 Main technical index
Working frequency：
X-band
Working system：
Azimuth mechanical scanning, pitch digital beamforming(DBF）system
Number of FH：
4
Pitch coverage (pitch Angle of view)：
-5~30°
Azimuth coverage (horizontal field of view Angle)：
360°
Detection height：
≥800m
Detection distance：
≥5Km(Spirit 4 drone),≥8Km(person)),≥10Km(vehicle)
Angle measurement accuracy：
Azimuth：≤0.4°(RMS),Pitch：≤0.4°(RMS)
Ranging accuracy：
≤5m(RMS)
Blind area：
≤25m
Antenna speed：
2RPM(180°/s)
A1so track the number of target batches：
≥150 lots
Probe radial velocity range：
1 to 100m/s
Anti-clutter ability：
Common clutter does not cause false alarms
Power Consum ption：
≤200W
Power supply range：
Dc power supply, 30 to 52V
Communication interface：
Gigabit Ethernet
Environmental adaptability：
Operating temperature -40 ~ +55℃, protection class IP65
weight：
≤20Kg
Main engine size(Servo not included)：
580*500*75mm
4.Precision photoelectric detection system
4.1 main features
1) The comprehensive use of two passive optical sensors, visible light cameras and infrared thermal imagers, can effectively detect and capture targets regardless of day, night, or adverse weather conditions. The two detection frequency bands complement each other, effectively meeting the needs of all-weather video detection and monitoring；
2) The visible light camera system adopts advanced optical filtering and digital image processing to enhance dual fog transmission technology, which can significantly enhance image contrast details and improve observation distance in foggy weather during the daytime.
3) Equipped with an embedded automatic tracking module, it can guide visible light cameras and infrared thermal imagers to lock, track, and recognize targets based on target position information obtained from passive spectrum detection equipment, radar, vibration fiber optics, and sound sensors. When there is no external guidance signal, manual search and tracking can also be carried out;
4) Embedded integrated tracking system design, with built-in OSD information overlay function, can segment targets that appear in the field of view of visible light cameras or infrared thermal imagers, overlay target marking information (such as tracking windows, etc.) on the target image, manually lock the target, and control the turntable to automatically track the target;
5) The front-end device has a built-in data storage function, which can store up to 200 sets of turntable angles, lens focal lengths, and other information. According to backend instructions, it can automatically call up pre-set monitoring positions, monitoring field of view angles, lens focal lengths, and achieve automatic fan scanning inspection and movement detection alarm functions;
6) The photoelectric turntable has a speed adaptive function. In manual search and tracking mode, the main control circuit inside the turntable can determine the field of view angle information of the visible light camera, automatically adjust the speed to the optimal value. When the field of view angle of the visible light camera changes, the speed of the image relative to the monitor during the turntable rotation is basically constant;
7) Built in FPGA image clarity analysis algorithm, it automatically analyzes visible and infrared videos, automatically controls lens focus, and achieves automatic and manual focusing;
8) Visible light cameras have functions such as pan tilt angle and lens magnification positioning, which can automatically enlarge a selected local area in the field of view based on backend instructions;
9) The main control circuit board of the front-end device has a sleep wake-up function. Through the communication port and corresponding instructions, the command center can remotely turn on and off the front-end device through the information fusion system;
10) The application of equipment self inspection technology and abnormal working status alarms make equipment maintenance and repair simple and convenient. Display and control equipment can monitor and display real-time operating status information of display and control equipment, optoelectronic monitoring equipment, and other equipment;
11) Adopting advanced turntable transmission mechanism to improve seismic performance and maintain stable and clear images;
12) Adopting standardized and modular design techniques, with good scalability;
13) Adopting the "three proof" sealing design technology is beneficial for long-term use in harsh environments.
4.2 Main technical index
Complete machine index
Maximum tracking distance
(Under good weather, 0.35×0.35m UAV)
Thermal imaging
Visible light
>2km
>3km
Tracking mode
Manual, automatic, radar/spectrum linkage
Servo performance
Maximum azimuth speed: ≥90°/s, maximum pitch speed: ≥90°/s;
Azimuth and maximum pitch acceleration：≥100°/s2
Electric source
AC220V，50Hz
Dimension
575mm×475mm×655mm
weight
≤80kg
Monitoring range
Azimuth 0 ~ 360°; Pitch -45°~ +90°
Operating temperature
-40℃～+60℃，90%±3%，non-condensing
Infrared thermal imaging
detector
Uncooled focal plane VOx detector
pixel
1280×1024
sensitivity（NETD）
Better than 50mk
Operating band
8～14um Long wave infrared
Lens focal length
30～300mm，Continuous doubling
Focusing
Manual, automatic
Image enhancement
SDE digital detail enhancement
Electron amplification
2X、4X
adjust
Automatic, manual, background correction
Image module
Hot white, hot black
Parameter regulation
Brightness, contrast, AGC automatic control
Start-up time
≤20s
High definition visible light
detector
CCD，Target surface1/1.8＂，Color to Black
Resolution
1920×1080，2 million
Interface with video format
H.264 video compression, IP network output
illuminance
Minimum 0.002lux
Lens focal length
22.2mm～755mm，Infrared correction electric continuous zoom lens, auto focus
Field Angle
18.12°×13.48°～0.54°×0.41°
Lens control
Electric multiplier, manual/auto focus, auto aperture
Fog penetration enhancement
Optical and electronic dual fog transmission
Servo turntable
Rotational speed
Horizontal 0.01° ~ 90°/S; Pitch 0.01° ~ 90°/S (continuous speed change)
acceleration
Horizontal 100°/S2；Pitch 100°/ S2
Rotation Angle
Horizontal 0～360°；Pitch-45°～+90°
Preset bit
200 Preset bits
Cruise scan function
With multi-point preset bit cruise, cruise speed can be set
Bearer mode
erect
Transmission mode
Servo motor direct drive
Positioning accuracy
0.02°
Embedded automatic tracking module
Video interface
Support visible/infrared video switching tracking
Video format
Composite video, 1Vp-p, 625/525 lines, CCIR, PAL, NTSC
Communication interface
1 RS232 configuration interface, 1 RS232 motor drive interface
Object detection
Multi-target and single-target detection can be performed
Tracking function
Built-in multiple tracking algorithms and support multi-target detection and multi-target tracking; Locking and recapture algorithms for transient loss of intelligent targets
Control interface
Network interface
It can be connected to the local LAN through the RJ45 network port to share network HD video
Interface protocol
Pelco-D、Pprotocols，2400/4800/9600/19200bps，support the ONVIF protocol
Interface style
Aviation waterproof plug
Environmental index
Operating temperature
-40℃～+60℃
Storage temperature
-45℃～+65℃
humidness
<90%
aseismatic
0.2g（Meet the requirements of GB/ T15211-2013 5.4 severe grade 2）
anti-impact
15g（Comply with GB/ T15211-2013 5.3 harsh level 3 provisions）
Lightning surge protection
Power source 4000V,Communication video signal 2000V
Salt spray protection
At the PH value of 6.5 ~ 7.2, continuous spraying for 48 hours, the surface did not change
Class of protection
IP66
5.Drone prevention and control command platform
5.1 Product Introduction
The UAV prevention and control command platform can simultaneously connect with radar detection systems, passive spectrum detection systems, optoelectronic detection systems, wireless countermeasure equipment and other UAV detection and countermeasure equipment. It is a comprehensive visual anti UAV command and management platform that integrates user management, equipment management, situation display and control, alarm linkage, decision command, record and evidence collection, event retrieval and other functions. Starting from practical needs, the system is based on multi spectrum detection technology, GIS map situation display and control technology, wireless signal interference technology, data fusion mining technology, network communication technology, and software platform technology to build an automated, intelligent, and unmanned unmanned unmanned aerial vehicle defense and control integrated platform system software. The system first uses a passive spectrum detection system and a radar system to scan and search over a long distance and a large range. Then, the target information obtained is fused, analyzed and reported, and the real-time situation of the target is displayed on an electronic map. Based on pre-set settings, the target is automatically or manually confirmed to be locked, tracked, recognized, and counteracted by optoelectronics. Intruding drones can be classified into alarm levels and given different forms of sound and light alarms. Illegal targets with high threat levels can be prioritized for disposal, and automatic recording, capturing, and evidence collection can be performed. The detection trajectory can also be replayed, and data can be retrieved based on time and events. The equipment can be set to manual and automatic working modes.
From the perspective of the system as a whole, the UAV prevention and control command platform is based on the nature of the platform, which can achieve distributed management, multi-level organizational structure management requirements, and the use of self built servers by subordinate organizations. In terms of details, the UAV prevention and control command platform adopts a modular design concept, which not only realizes the modularization of the system but also the modularization of business functions.
5.2 Main function of system
Serial number
function
Function introduction
1
Multilevel user
Supports the multi-department management function, supports a maximum of five levels of department, supports the multi-user, multi-rights management function.
Support information management push function, users do not need to log in again, the system automatically updates the data information.
2
Equipment management
Support the function of photoelectric turntable, PFO, support frequency, radar, countermeasures, induction and other equipment management functions, support the rapid increase and maintenance of multi-band photoelectric detection system, support the function of thermal image menu adjustment.
Support the domestic mainstream manufacturers of video control protocols, support the domestic mainstream manufacturers of radar communication protocols, can provide radar, spectrum, countermeasures, induction and other equipment docking support.
3
Video preview
Support real-time video preview function, support visible light, thermal imaging video switching function, for hardware tracking mode, support tracking video preview function.
4
pan-tilt control
Support the photoelectric detection system up and down, left and right and other 8 directions of the control function, support the zoom focus lens control function.
Support mainstream manufacturers of private control protocols, support standard Pelc-D control protocols.
5
Video capture
Supports the function of recording and capturing real-time video, and supports the function of recording alarm events detected by drones.
6
Regional control
The three-level management area supports the management of round, rectangular, and polygon management areas. The three-level management area represents three types of alarms of different degrees: major, minor, and warning. Supports the whitelist area management function.
7
Drone whitelist
Supports the whitelist management function for aircraft in specific frequency bands.
8
Message notification
Supports the function of automatically sending SMS messages to specific personnel after detecting the aircraft.
9
Equipment control
Supports device parameter configuration for devices such as spectrum, radar, countermeasures, and induction.
10
Drone detection
Support to receive frequency, radar detected aircraft data information, and support the detected data fusion analysis function.
11
Tracking display
Support real-time presentation of aircraft trajectory information in the form of a map, and support the function of removing redundancy and interference from radar feedback trajectory information
12
Counter induction
Support the countermeasures to induce equipment to strike and counter aircraft
13
Photoelectric tracking
Support the function of photoelectric tracking for detected targets, support the tracking method of hardware tracking modules, and support the tracking method of software algorithms.
14
Target recognition
Support the use of deep learning algorithms for secondary recognition of tracked targets, which can automatically identify whether the tracked target is a drone
15
Equipment status monitoring
Support real-time monitoring of the connection status of optoelectronic, radar, spectrum and other devices, and distinguish between online and offline devices using different colored icons
16
Information search
Support the function of fuzzy search on the device tree, quickly filter corresponding devices based on keywords, and support the function of fuzzy search on the information management module
17
Alarm record query
Support the function of retrieving historical alarm records
5.3 Main performance of the system
①The highest department level supported by the system is 5 levels;
②The maximum number of devices supported by each department is 999;
③The maximum number of online users supported by the system is 50;
④Each device has a maximum of 300 normal preset positions.
6.Main Technical Specifications of Navigation System Replacement Module
Content
Specification
Deception Distance
≥500m
Control Range
360° unobstructed
Overall Power Consumption
≤20W
Signal Transmission Power
≤10dBm(mW)
Transmitted Navigation Signal Standards
GPS, GLONASS, BDS
One-touch operation, intelligent control, precision machining, long-distance tracking
7. Main Technical Specifications of Portable Drone Jamming Equipment
Content
Specification
Jamming Distance
≥1.5km
Jamming Frequency Bands
900MHz, 1.6GHz, 2.4GHz, 5.8GHz (Expandable Bands: 433MHz, 1.2GHz, 1.4GHz, 5.2GHz)
Jamming Effective Time
≤3s
Battery Standby Time
≥48h
Power Supply
Lithium battery; Can be connected to mains power for continuous supply
Operating Temperature
(-20℃～50℃)±2℃
Total Power
≤50W
Effective Jamming Distance Ratio
≥15:1
Jamming Angle
≥30°
Electrostatic Discharge Immunity
GB/T 17626.2 Level 3
Electromagnetic Radiation Protection
Body harm to operators meets national regulations.
Content
Specification
Radiation Safety
Radiation to operators 300mm behind the axial direction of the equipment meets GB8702-2014 standard
8. Main Technical Specifications of Box-type Drone Jamming Equipment
Content
Specification
External Antenna
Adjustable antenna for targeted jamming
Jamming Circuits
9 jamming sources can be individually switched, allowing for selective jamming
Built-in Lithium-ion Battery
Operating time: 1-1.5 hours
Power Supply Voltage
90-260 VAC / 12/24 VDC
Weight
Not exceeding 22 kg (excluding external antennas)
Jamming System
Frequency Bands (customizable)
Output Power
900M: 840～930MHz
100W
1.2G: 1226～1251MHz
100W
1.4G: 1430～1444MHz
100W
GPS 1.5G: 1555～1608MHz
100W
2.4G: 2400～2500MHz
100W
5.8G: 5725-5875MHz
50W
Electrical Parameters
Protection
VSWR Protection
Overheat Protection
Cooling
Forced air cooling
Jamming Distance
Omnidirectional: 500-1000 m
Signal Angle
Omnidirectional: 360 degrees
Power Supply
AC220V/110V, DC29V
Equipment Type
Mobile/Rapid Deployment Type
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