Working principle of anti-system of handheld UAV


The anti-UAV system is usually a low-altitude defense and control system for UAVs. The anti-UAV system realizes the full-time, full-coverage and full-process defense and control management of sensitive airspace. The system realizes the real-time detection and detection of long-distance UAV by combining the active detection means of radar and the passive detection means of radio monitoring equipment, obtains high-precision positioning information of UAV targets, and then realizes the confirmation, identification, locking, tracking and forensics of targets through the joint intervention of photoelectric equipment. After the suspicious UAV is confirmed, the target can be quickly and effectively disposed by multiple combination strategies through navigation decoy equipment and radio frequency UAV jamming equipment to realize the functions of target displacement, forced landing in place, fixed point entrapment, course guidance, etc.

The system realizes real-time monitoring, analysis, pre-alarm and flexible disposal of UAVs that violate the regulations and enter the sensitive airspace illegally, prevents the occurrence of major malignant events, improves users' rapid response ability and emergency response ability, forms a new mechanism of scientific management and effective command, and ensures the continuous security and stability of the sensitive airspace. Shenzhen Jiewei Technology Co., Ltd. is committed to the research, development, manufacture and sales of UAV detection, interception and anti-system system, individual UAV anti-system equipment, wireless signal shielding equipment, RF amplification power amplifier module, DDS/FPGA digital explosion-proof shielding system, recording shield and other products serving public security and information security. In the future, it is bound to move from individual UAV countermeasures to intelligent and interconnected UAV countermeasures.

For example, the survey and loss determination of UAV products is often controversial. The state of the damaged UAV of different brands and models has different impact on the fuselage. The cause of the damage of the product also needs professional analysis. When the insurance company cannot provide a large number of professional personnel to check Charlie's claim, it needs to analyze and determine the loss by itself, which means that the voice of the insurance product claims is in the hands of the UAV company. Therefore, for many property insurance companies, the development of UAV insurance is still insufficient, and there are still many loopholes. Moreover, as for the UAV itself, the quality difference is huge, and the accident situation is different, which is easy to cause serious consequences. If insurance is planned to be implemented in the UAV industry, the risk of UAV must be controlled within a controllable range. At this time, the necessity of UAV countermeasures is self-evident. Shenzhen Texin Electronics, as a professional scientific and technological enterprise that has studied UAV countermeasures technology for a long time, and in view of the current difficult situation in the field of UAV in the insurance industry, it is suggested that insurance enterprises should not rely on UAV enterprises blindly, and should take the initiative to establish a set of feasible UAV countermeasures to truly reduce the risks brought by UAVs. Shenzhen portable UAV anti-system application scheme wants to join the UAV anti-system, which one should be selected? How to avoid the attack of UAV anti-gun? At present, most of the domestic consumer-grade civil remote-control aerial photography UAVs have a remote control frequency of 2.4G and 5.8G. The positioning and navigation are GPSL1 and Beidou B1 1.5G frequencies. The police UAVs use other frequencies or have other functions to ensure normal flight under special circumstances. The foreign standard UAV remote control has a remote control frequency of 433MHZ 868MHZ 915MHz, and the navigation supports GPSL2-L5 GLONASS, etc. Therefore, most UAV anti-gun systems are used to interfere with these three frequencies. UAV interference can be independently switched on and off the shielded remote control or positioning mode to realize forced landing or automatic return of the black flying UAV, which is applicable to * *, large-scale activities, anti-terrorism fields and other occasions. In order to effectively avoid the attack of UAV anti-gun, report and file flight permit in advance, or use UAV outside the interference frequency, increase the remote control reception flight module and other means, the UAV anti-manufacturer Shenzhen Texin Electronics reminds the majority of UAV users to operate flight activities carefully, obtain flight qualification certificate, report and file flight permit in advance, and do not try the law by example.

The popularity of consumer-grade UAVs has brought potential security challenges to sensitive areas such as airports, nuclear power plants, oil depots, confidential departments, and traditional manual operations have been difficult to cope with airspace protection. In response to this, Shenzhen Jiewei Technology has launched portable UAV jammer, fixed UAV anti-system equipment, on-board high-power UAV sealing and control system, and remote UAV monitoring and detection system. By detecting and analyzing RF signals, it can identify and detect domestic and foreign mainstream UAVs and provide security for airspace. The agent dealer can only sell UAV countermeasures or detection products to public institutions, owners or operators of key infrastructure, such as public security agencies, law enforcement agencies, regulatory agencies, and owners or operators of airports, power plants and other facilities; This product is not sold to individual users. The emergence of UAV detection system brings new development opportunities to the traditional UAV countermeasures.

The classification and characteristics of countermeasures are summarized as follows:

1. Laser strike technology

The laser strike needs to focus on the special parts of the UAV and burn them to destroy the UAV's electrical modulation module or control circuit. The requirement for laser power is high, and only one aircraft can be destroyed at a time when facing a group of unmanned aircraft.

2. High-energy microwave strike technology

Microwave weapons absorb high-power microwave energy into the circuit module of the UAV through microwave diffraction, internal circuit coupling of the UAV, and destroy the circuit components, causing the UAV to lose control.

3. Trap or control link

(1) Satellite positioning entrapment: satellite positioning entrapment implements the entrapment by sending false satellite positioning signals to the UAV, and sends the wrong position signals to the UAV, so as to make it land or return after misjudging the position.

(2) The radio communication protocol simulates the remote controller to send control signals to the UAV through the UAV signal communication protocol, and will not affect the normal operation of other equipment. However, with the improvement of communication encryption technology, it is increasingly difficult, and it is required to adapt to various UAVs on the market. The UAV models that need to be regularly updated and sold have a high cost. What are the types of anti-aircraft products? Working principle of anti-system of handheld UAV

Word of mouth among consumers who have used UAV anti-aircraft products has promoted the advancement and development of UAV anti-aircraft industry to a certain extent. Working principle of anti-system of handheld UAV

In terms of specific methods, according to the planning classification of the R&D Demonstration Center of the Equipment Finance Bureau of the Ministry of Public Security, the classification and characteristics of the current anti-terrorism technology are summarized as follows:

1、 Radio interference

The radio jamming technology can make the UAV forced landing, hovering or returning out of control by interfering with the UAV positioning system or the control radio signal.

2、 Net capture technology

At present, the main methods of net capture technology are as follows: large rotorcraft is used to load the net and launch the net bomb; The rotary-wing UAV is equipped with a catch net to catch the target; Or use vehicle-mounted and single-soldier shoulder-fired net bombs.

3、 Hard damage technology

Hard damage technology refers to the use of missiles, racing UAVs and other direct destruction of target UAVs. It requires high precision of weapons, and it is easy to cause UAV out of control and cause secondary hazards in densely populated places.