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Research on the application of UAVs in the security of major 
events 

Yang Song, Xingyang Zhang *, Xiaolei Zhao 
PAP Command College, Tianjin 300000, China. 

*Correspondence Author 

Abstract. UAVs have developed rapidly in the police due to their mobility, concealment, wide field 
of vision, shocking, and other attributes, especially in emergency response, aerial investigation, 
security guards, social security management, and emergency rescue And other aspects have played 
advantage and improved work efficiency. As the application of police drones in various police 
department departments becomes more and more extensive, some problems are increasingly 
exposed and highlighted in actual combat applications. It is urgent to standardize and improve the 
application of police drones to improve the Three-dimensional combat capability effectively. The 
article analyzes this. The construction of an efficient UAV application system for the security of 
significant events is the functional requirement of the police in the new era. It is an essential means 
to improve social security's comprehensive prevention and control capabilities and realize the 
integration of air and ground for significant events. This paper mainly discusses building a UAV public 
security prevention and control system from the aspects of construction background, requirements, 
key protection locations, and critical technologies. 

Keywords: UAV; major events; security; application. 

1. Introduction 
In order to better protect the safety of the people, further enhance the core combat effectiveness of 

the police, and expand the scope of police protection, the drone security prevention, and control 
system came into being. The UAV public security prevention and control system adopts distributed 
network arrangement of multi-source heterogeneous sensors to achieve seamless detection coverage 
of low-altitude airspace[1]. Through wired, wireless, and other communication networks, target 
detection, data fusion, target identification, threat assessment, comprehensive processing, etc. The 
system can integrate the overall efficiency of each device and achieve rapid deployment, timely 
response, and comprehensive protection in the case of limited police conditions. Under the 
background of the rapid development of drones and the intensifying phenomenon of various "black 
flying drones," the security prevention and control system of drones is an important factor for the 
police to deal with the security of key areas, maintain national political and social stability, and build 
low-altitude airspace security [2]. 

2. Requirements for the construction of the prevention and control system for 
drones in the security of major events 

There are many factors, such as cross-business, cross-department, cross-system, cross-network, 
etc., in the construction of a UAV public security prevention and control system. Therefore, it is 
required to realize networked and multi-level information sharing in the process of its construction 
and realize intelligence, Efficient synthesis of command and disposal [3]. 

2.1 Distributed collaborative processing capability and scalability optimization 
For the public security prevention and control needs of UAVs in key areas, defense areas, and 

temporary sites of major events, a distributed and gridded UAV security prevention and control 
system should be built, and each grid site can quickly report the target through an efficient 
communication network. Information and control instructions are issued, and at the same time, the 



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police forces in the area and nearby are called in a centralized manner to improve the cooperative 
processing ability of UAVs. Through the open network architecture, more mature and effective 
detection and disposal equipment can be incorporated into the integrated command and control 
system, thereby improving its ability to continuously expand and optimize[4].See picture 1. 

 
Fig. 1 UAV in security prevention and control system structure 

2.2 Integrate the capabilities of every single set of equipment to improve the systematic 
detection performance 

The UAV public security prevention and control system integrates UAV detection equipment 
(mainly including radar detection, radio detection, photoelectric detection, etc.), UAV interference 
suppression equipment (mainly including power suppression, smart directional suppression, decoy 
suppression, etc. ), capture and destroys equipment (mainly including physical capture, energy wave 
destruction, etc.), by optimizing the configuration of equipment and adopting a variety of technical 
means to jointly coordinate to build a systematic UAV public security prevention and control 
capability to ensure the safety of key areas [5]. 

3. Scenario application analysis of drones enabling security in major events 
3.1 The scenario application of major event security has its own uniqueness 

First, small data in a relative sense. The physical scope, guard objects, and prevention goals of 
major event security are basically determined, visualized, and limited. Compared with other social 
and public security fields, the data generation volume of the security link of major events is small, 
the cycle period is short, and the amplitude of increase and decrease is low, which is not enough to 
support advanced algorithms to build calculation models and draw credible conclusions, and it is 
difficult to achieve on the basis of small data collection. It is impossible to quickly provide a reliable 
prevention basis for full-dimensional accurate calculation. Second is the fragmentation of security 



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demand terminals. The security of major events involves different scenarios such as perimeter 
protection, hazard detection, security inspection, entry and exit control, document inspection, airspace 
control, encrypted communication, etc. The technical application requirements of a single link have 
specific and fragmented attributes, which is very important for intelligent technology. The scene 
embedding and landing matching of the means pose great challenges, which are equivalent to the 
customized scene integration and fusion applications of various AIs. Third, the capabilities of the 
application side and the operation and maintenance side are different. Even if the supply side of the 
integrated software and hardware solution is in place, manual operation or even full-time duty is 
required at any time in the specific aspects of the security practice application of major events. 
Whether security personnel can freely control new equipment, especially AI technology, largely 
determines the upper limit of the effectiveness of security technology for major events. In addition, 
companies that provide technology and equipment also need to invest in enough operation and 
maintenance personnel to escort security operations so as to solve various technical problems that 
may arise at any time.See picture 2. 

 
Fig. 2 Drones in Wireless Mobile Security Systems 

3.2 Security sub-scenario applications that can be realized by mainstream UAV technology 
The unique advantages of big data cloud computing technology are reflected in the aspects of mass 

storage, intelligent analysis, and interconnection. The unique advantages of face recognition 
technology are that it is fast and convenient, no contact is required, and it is not easy to detect. Its 
combat power output scenario lies in the identification and verification of specific personnel and risk 
warning. The unique advantages of intelligent monitoring technology are reflected in two points: 
automatic identification, tracking and monitoring, and intelligent analysis and judgment. The unique 
advantages of digital communication technology are reflected in strong anti-interference, easy 
encryption, and high reliability. Its combat power output scenarios include wireless communication, 
mobile command, and emergency communication support. The unique advantages of intelligent 
patrol control technology lie in its wide coverage, strong adaptability, and uninterruptedness. The 
unique advantages of bayonet intelligent management technology are reflected in unattended, 
intelligent traffic, efficient and fast, and its combat power output scenarios include entrance and exit 
control at the event site and vehicle classification management. 

3.3 Scenario design of drones to make up for the shortcomings of security forces in major 
events 

This design mainly points to the exploration of the combined application of "HD video + big data 
+ cloud computing + deep learning + face recognition." For example, after the data of criminal 
fugitives or key security personnel are entered into the database, once this personnel appears in the 
major activity control area or warning area, they will be accurately captured by the camera and 
automatically compared through the face image database, and trigger the background early warning 



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prompt. Inform the security personnel to take effective precautions and even take measures such as 
arrest and removal as soon as possible to eliminate potential safety hazards. This quickly and 
efficiently makes up for the inefficiency of manual inspections and extensive management and control 
in the traditional security model and solves the problem of high consumption and low efficiency that 
the security department wastes a lot of grassroots police force in the control of key personnel. The 
advantage of this type of technology application lies in the long-distance "senseless" data collection, 
and the difficulty lies in the efficiency of data analysis and recognition in dynamic scenes and 
complex environments. If the accuracy of the technology can meet the requirements in a specific 
scenario, and the risk of error can be tolerated, then the technology is valuable. 

4. The structure of the application system in the security of major UAV 
activities 

The security monitoring system of a UAV is composed of a UAV remote sensing system and 
wireless mobile communication technology. When the UAV runs the security monitoring system, the 
UAV will transmit the pictures taken at high altitude to the remote sensing system through the 
wireless network, and the remote sensing system will then issue the corresponding commands to the 
UAV through the wireless mobile communication technology. The structure of the UAV includes the 
body of the aircraft, the navigation system, the power supply system, the global positioning system, 
and the high-definition camera system.See picture 3. 

 
Fig. 3 Application system in security of major events of drones 

4.1 Flight control system 
The flight control system of the UAV is equivalent to the human brain. The instructions sent by 

the flight control system to the UAV can directly affect the stability of the UAV during flight, as well 
as the information the UAV conveys to the ground during the flight state. Timeliness and accuracy 
of relevant data. It can be seen that the flight control system of the UAV can affect the actual effect 
of the UAV when it performs the task. 

4.2 Data link system 
The data link system of the UAV is closely related to the transmission of remote sensing 

instructions of the UAV and the function of receiving and sending information during the flight of 
the UAV. The data transmission of the UAV mainly includes video images and status data collected 
by the UAV in the flight state, and the UAV transmits the relevant information collected to the ground 
receiving personnel for the use of the background personnel; the UAV moves through the world The 
communication system, code multiple access networks, and 4G wireless broadband technology are 



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used to receive the commands of the remote sensing system so that the UAV can achieve high-speed 
improvement during the operation process. 

4.3 HD Camera System 
The high-definition camera system of the UAV can transmit the pictures and video content 

collected by the UAV during the flight to the background of the remote sensing system or the memory 
card. The high-definition camera system is mainly for the collection of pictures and videos. 

4.4 Global Positioning System 
Relevant technicians can locate the location of the drone at any time during its flight of the drone. 

This effect can be achieved by the role of the global positioning system of the drone. When the drone 
is flying Due to a crash for some reason, the relevant technicians can also determine the crash location 
of the drone by positioning and recovering it. 

5. Practical application of drones in security before major events 
The security work in the security of major events is related to whether the security of major events 

can be carried out smoothly, and the preliminary security work before the event is the foundation of 
the entire security work and an important part of the security work. Security issues that arise during 
the security process. However, the early security work in the security of major events is complicated 
and cumbersome. Making full use of police drones can not only save the police force but also save 
time for preparation work and can also make security work more refined. The work of drones before 
major events is mainly on-site surveys and information collection.See picture 4. 

 
Fig.4 Drone Police Patrol System 

Understanding and mastering the basic situation in the security of major events is the premise and 
condition of doing a good job in security work. Making full use of police drones can master the basic 
situation in the security of major events with half the effort. The people, things, places, and times 
involved in the security of the event are carried out: 

5.1 3D modeling, division of regions 
Before the event is carried out, the use of police drones live, and the actual application of police 

drones in the security of major events is related to whether the security of major events can be carried 
out smoothly, and the event is carried out. The previous preliminary security work is the foundation 
of the entire security work and an important part of the security work. The preliminary security work 



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is in place to avoid security problems in the security process. However, the early security work in the 
security of major events is complicated and cumbersome. Making full use of police drones can not 
only save the police force but also save time for preparation work and can also make security work 
more refined. 

5.2 Flow monitoring to prevent blockage 
When major events are carried out, security is easy to cause surrounding crowds, traffic congestion, 

or road congestion. Therefore, it is necessary to fully understand the road traffic conditions in advance 
and make predictions about the flow of people and vehicles during the event in combination with the 
entry and exit of vehicles and the circulation of people during the event. The police can give full play 
to the characteristics of police drones with strong mobility, wide field of vision, and wide coverage, 
collect traffic conditions in the activity area and surrounding road sections and intersections and 
decide whether to implement targeted traffic control through pre-judgment. 

5.3 Safety survey to eliminate hidden dangers 
Before the activity is carried out, potential safety hazards should be eliminated to avoid 

endangering the personal safety of the participants and affecting the smooth progress of the activity. 
The police can use drones to investigate the venues and surrounding areas. For example, they can use 
search and explosion equipment to investigate open squares to rule out whether there are hidden 
dangers of explosions in the squares and surrounding areas; they can make full use of micro-drones 
to enter the narrow space that the surveyors cannot enter. Search, make up for the situation that the 
police cannot do, search for suspicious objects on the roof of the venue, prevent explosives from 
being set up in advance, and so on. 

6. Practical application of UAV security in major activities 
In the security of major events, police drones can be used to conduct aerial monitoring, strengthen 

public security prevention and control, and grasp the scene dynamics in real-time, so that reasonable 
measures can be taken to prevent the occurrence of accidents such as crowd stamping, and even part 
of the police situation can be carried out. Pre-treatment. 

6.1 Strengthen patrols and discover hidden dangers in time 
Use police drones to patrol and monitor the active area and surrounding areas, especially to 

conduct key patrols in areas that cannot be monitored by ground monitoring and police forces, 
including water areas, river surfaces, bridges, etc., to timely detect suspicious persons, road facilities, 
places, etc. It can effectively make up for the lack of ground monitoring and police force. 

6.2 Use face recognition to discover key personnel 
In the security of major events, a small number of personnel will come to the scene to engage in 

behaviors that affect the smooth progress of the security of major events. In order to ensure the order 
of the event, the police should strengthen the identification and control of relevant personnel. The 
police can make full use of the characteristics of police drones with wide high-altitude vision, a large 
monitoring range, and flexible viewing angles to supervise the area where people gather during the 
security of major events. Effective control on site. 

6.3 Strengthen countermeasures to ensure airspace safety 
The development of the times has led to the general trend of the popularization and application of 

drones. More and more ordinary people buy and use drones. At the same time, some criminal suspects 
will also use drones to carry out illegal and criminal activities. In view of the threats that drones may 
pose to various aspects, and focusing on the safety management and control of future drones, the 
police should build a safety management and control plan for the drone countermeasure system of 



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"regional early warning, real-time tracking, and controllable disposal." During the security process 
of major events, the relevant police departments should fully strengthen the drone countermeasures 
to ensure airspace security. 

6.4 Practical application of preventing crowd trampling 
The police can use police drones to conduct targeted aerial monitoring of crowded areas, entrances, 

and exits, parking lots, key locations, etc., so as to grasp the flow of people, traffic, and on-site 
conditions in real-time and transmit the on-site situation back to the command room in time, which 
is helpful for timely Judging the development trend of the scene, and reasonably deploying the police 
force, effectively implementing the combination of ground and air, and timely preventing the 
occurrence of accidents such as crowd stampede. 

In places where the effect of terrestrial broadcasting is not obvious, the police can carry on-air 
shouting tools to guide and direct people in densely populated areas in a timely manner and issue 
broadcasts in a timely manner to inform the crowd of the correct travel route, reasonable stay time, 
and real-time on-site conditions. 

For activities held at night, due to the dark light, it is more likely to cause panic, getting lost, 
congestion, etc., resulting in a stampede. The police can mount searchlights on police drones to 
illuminate local areas without interruption or mount lighting tools to fly. To provide personnel travel 
routes. 

At night in large venues, it is difficult to observe the crowd density in a certain area with the naked 
eye, which affects the correct diversion direction of directing the flow of people. The police can use 
police drones equipped with thermal imaging cameras to take pictures in the area, make real-time and 
intuitive judgments on the density of crowds, timely and effectively command the evacuation and 
diversion of people, and give early warnings of possible stampedes and hidden fires. 

7. Conclusion 
UAV application is a systematic project, with the rapid development of various technologies and 

the ever-changing social situation. 
Technology faces both opportunities and challenges. Only by continuous learning and exploration 

can the application of drones in the security of major events be brought into full play, and it can truly 
play its due role in maintaining social order and preventing and combating crimes. 

References 
[1] Liu Zhe. Research on the application and modeling design of small unmanned aerial vehicles in the field 

of police. Shanghai: Donghua University, Vol. 24(2021) No.14, p.72-75. 
[2] Jin Haobo. The Rise and Regulation of UAV Reconnaissance. Journal of Railway Police College, Vol. 

20(2020) No.09, p.114-116. 
[3] Lin Qi, Yu Yue. Application and discussion of UAV in a public security investigation. Nanjing Forest 

Police College, Vol. 18(2021) No.16, p.132-135. 
[4] Luo Ying, Zhang Min, Liu Jun. Eagles hit the sky and weave "Skynet" - UAV and its police application 

status. Police Technology, Vol. 16(2021) No.13, p.98-99. 
[5] Zan Lin. Discussion on the practical application of police unmanned aerial vehicles. Journal of Railway 

Police College, Vol. 21(2020) No.11, p.116-117. 


	1. Introduction
	2. Requirements for the construction of the prevention and control system for drones in the security of major events
	2.1 Distributed collaborative processing capability and scalability optimization
	2.2 Integrate the capabilities of every single set of equipment to improve the systematic detection performance

	3. Scenario application analysis of drones enabling security in major events
	3.1 The scenario application of major event security has its own uniqueness
	3.2 Security sub-scenario applications that can be realized by mainstream UAV technology
	3.3 Scenario design of drones to make up for the shortcomings of security forces in major events

	4. The structure of the application system in the security of major UAV activities
	4.1 Flight control system
	4.2 Data link system
	4.3 HD Camera System
	4.4 Global Positioning System

	5. Practical application of drones in security before major events
	5.1 3D modeling, division of regions
	5.2 Flow monitoring to prevent blockage
	5.3 Safety survey to eliminate hidden dangers

	6. Practical application of UAV security in major activities
	6.1 Strengthen patrols and discover hidden dangers in time
	6.2 Use face recognition to discover key personnel
	6.3 Strengthen countermeasures to ensure airspace safety
	6.4 Practical application of preventing crowd trampling

	7. Conclusion
	References