The subway is mostly underground, the space is confined and the flow of people is large, so the security check is especially important. Subway security check to prevent the occurrence of riotous events through the human body itself and luggage inspection.
In view of the special needs of the subway industry, Dongying combines its many years of successful experience in the subway security industry with X-ray imaging, liquid, explosives detection, TCP/IP networking and other technologies to launch a complete solution for subway industry security check. The first to introduce the network concept into the subway security program, the formation of a large security information network. 

For the important places of highway system which are densely populated, we should adopt the all-round security system solution of "security prevention in the front, tracking after the fact, and comprehensive analysis of information" as a whole. The function is mainly composed of the following parts: baggage item detection (X-ray machine), human body detection (security gate), handheld liquid detection, handheld metal detection and TCP/IP networking technology. It can realize the body inspection of import and export personnel, portrait collection, detection of packages carried, detection of items carried, as well as the efficient integration and analysis of all human and material related information, creating a new realm of security inspection in public places of the station with the powerful functions of the new integrated system.

The social situation is gradually bad, security needs gradually strengthened
As social contradictions become more and more prominent, the situation of counter-terrorism is becoming more and more severe. Public security agencies, courts, prosecutor's offices, prisons and other government agencies frequently violent terrorist incidents and illegal behavior, resulting in huge losses of personal and property security, which has a significant social and economic impact. In order to prevent and stop the occurrence of explosions, shootings, assaults and other violent incidents, the number of applications of public security and law enforcement agencies security screening equipment is gradually increasing.

In recent years, due to the frequency of terrorist attacks and the fact that venues are even more highly populated with people, wealth and information, large project management committees in various countries have been placing more and more emphasis on security checks. To organize a successful, exciting and memorable event, security is a top priority. How to cope with major emergencies in so many locations, a large number of people based on the flow of traffic, to ensure the fastest response to emergencies in the shortest possible time, to provide the best response, to prevent the occurrence of security crises at the source of the event, to improve the quality of security, the scientific and efficient security screening program highlights its more important significance.

Behind the explosive growth of the express delivery industry, followed by express security issues. Express parcel explosions reflect the industry security loopholes. Tianjin Port Dangerous Goods Explosion brought painful lessons still palpitating. The state attaches great importance to the safety of the logistics industry, the mandatory requirement for logistics companies to use security equipment to prevent safety accidents.

Analysis of airport security requirements
At present, most airports use the security check equipment equipped in the early stage, whose functions and technologies are not perfect enough to meet the current requirements of security check.
The severe security situation in recent years has prompted the airport to strengthen security precautions, and some airports need to be equipped with additional security check equipment