Security inspections at airports, customs checkpoints, train stations, subway stations, large events, and public venues often raise concerns about personal safety, efficiency, and privacy. As society moves toward smarter cities, the demand for long-range, contactless, and dignified security solutions has become a major focus.
Traditional security methods—such as manual checks, handheld metal detectors, full-body scanners, explosive trace detectors, and liquid probes—are limited in their functionality, often resulting in low security effectiveness and potential resistance from individuals. Some systems, like X-ray machines, may expose people to radiation and are not suitable for regular use. These conventional approaches struggle to meet the modern needs of smart city development, which requires more advanced, efficient, and respectful security measures.
The passive terahertz human body imaging system represents a breakthrough in this field. It uses passive receiving technology, meaning it doesn’t emit any radiation, making it completely safe for both operators and subjects. By leveraging the unique penetration properties of terahertz waves through common clothing materials (like cotton, wool, polyester, and leather), it can detect hidden objects without compromising privacy or dignity.
This system is especially valuable for counter-terrorism and public safety. In March 2018, the U.S. Federal Transportation Administration and the Los Angeles Metropolitan Transit Authority conducted tests using ThruVision’s passive terahertz scanner in crowded transit areas. The device successfully identified weapons or explosives carried by individuals. If deployed across subway stations in the future, it could significantly enhance the speed and accuracy of security screenings.
Unlike traditional airport equipment, the passive terahertz detector does not require passengers to remove their shoes or undress. Most people would be unaware that they are being scanned, as the system operates discreetly and does not reveal anatomical details. It emits no harmful rays, ensuring the safety of all involved while maintaining a high level of privacy.
ThruVision employs the world’s most advanced terahertz array imaging technology, offering a compact, lightweight design (24KG) with an impressive 15-meter detection range. This makes it ideal for a wide range of applications, including airports, railway stations, financial institutions, military facilities, and high-profile events. With over 20 countries adopting the technology, it has proven its reliability and versatility in real-world scenarios.
Here are six key advantages of the passive terahertz system:
1. **Passive and Non-Intrusive**
It passively receives terahertz waves emitted by the human body, eliminating the need for physical contact and avoiding the display of sensitive physiological features.
2. **Safe and Harmless**
No radiation or energy is emitted during operation. It only detects the natural terahertz energy released by the human body, ensuring complete safety for users and operators.
3. **Compact and Energy-Efficient**
The system has a small footprint (66cm x 55cm x 22cm) and consumes only 90W of power. Its weight of 24KG makes it as portable as a desktop computer.
4. **Long-Range and Contactless**
It can scan individuals from 3 to 15 meters away, allowing for real-time, dynamic imaging without requiring people to stop or interact directly.
5. **Comprehensive Material Detection**
It can identify both metallic and non-metallic objects, providing a more thorough security check than traditional systems.
6. **Flexible Deployment Options**
The system can be installed in various configurations—single unit, dual units, ceiling-mounted, vehicle-mounted, or embedded in doors—making it adaptable to different environments.
ThruVision has been widely adopted in countries such as Japan, the Philippines, Myanmar, Indonesia, India, Georgia, the UK, the US, Afghanistan, Iraq, Saudi Arabia, Vietnam, Thailand, South Africa, and China. It has been used in critical locations like airports, train stations, government buildings, and high-profile events, including the 2017 U.S. Presidential Inauguration. As the need for secure, efficient, and dignified security grows, the passive terahertz system is set to play a vital role in shaping the future of public safety.
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