技术反恐：太赫兹人体安检仪与DNA-STR分析加速优化

Anti-terrorism Must Be a Technical Job

城市公共安全添利器

Urban Public Security Management with a New Aid

恐怖主义正在成为一个日益严峻的国际问题，其中大部分的恐怖袭击事件都发生在车站、机场等人流量比较大的地方，如2016年3月22日发生在比利时首都布鲁塞尔的连环恐怖袭击爆炸就造成了32名平民伤亡。近年来，随着恐怖手段的变化，传统的安检模式已无法应对。为应对日益增长的恐怖主义威胁，研究开发出的太赫兹人体安检仪等一批新型检测装备，在不接触人体的情况下实现对人体所携带隐藏物的快速检测则十分必要。

Terrorism is becoming an increasingly serious international problem. For example， on March 22， 2016， the terrorist attacks occurred in Brussels， capital of Belgium， had caused 32 civilian casualties. Most of these terrorist attacks target stations， airports and other places where there are large flows of people. In recent years， with changes in terrorist means， the traditional means of security are stretched. In response to the growing threat of terrorism， is essential to develop the terahertz body safety device which requires quick detection of hidden objects carried by people without contact with the human body.

当发生重特大刑事案件时，现有的DNA分析技术，在案件的排查时，往往需要8小时以上的时间来对一个血样进行检验。因此，从采集嫌疑人血样、送检DNA实验室，到分析结果出来、反馈到专案组，时间远远长于12个小时的传唤时间，这样就给侦查部门带来了困惑。所以，如何缩短DNA的检验时间成为科研攻关的一个新的重点。

Whenever there’s a major criminal case， the existing DNA analysis technology often takes more than 8 hours in case investigation for a blood sample test. From collecting suspects’ blood samples， checking in DNA laboratory till the results came out and was delivered to feedback task group， it takes much longer time than 12hours of call time， which confused the investigation department， which makes it a key in scientific research on how to shorten the DNA test time.

然而，对于城市一些特殊的公共场所、公共建筑，由于其特殊性，因此需要一种能够适应各种恶劣的气候、环境，以及防探测、抗干扰、防探测、抗干扰、布设自由的安全防范系统。基于光纤振动传感理论，复旦大学开发出了光纤探测报警系统。

However， in some special public places and public buildings of the city， there’s a need for security system adaptive to various harsh climates and environments with anti-detection， anti-interference， anti-detection， antiinterference and free layout features. Fudan University has developed an optical fiber detection alarm system based on Fiber vibration sensing theory.

快速个体识别系统研究

Quick Individual Identification System Research

立足于侦查破案的需求，提出了1小时快速人类短串联重复序列复合（STR-PCR）扩增的理念，开发了Expressmarker 16快速检测试剂盒，通过对嫌疑人员的生物样本进行快速DNA分型，将结果与预置的重特大案件中现场物证的DNA信息进行比对，快速锁住犯罪嫌疑人，或排除无辜人员。国内率先将DNA-STR分析的PCR扩增时间缩短至1小时内，实现了2小时内完成一个血样STR分型的预设目标。达到国内领先、国际先进水平。

Based on the requirements of detection， the 1-hour rapid human short tandem repeat sequence (STR-PCR)amplification concept was brought up for the development of Expressmarker 16 rapid detection kit to carry out rapid DNA typing through biological samples of suspects. The results are compared with preset major and serious cases in the field evidence of DNA information to quickly lock down the suspect or exclude innocent people. It is the first time for China to shorten PCR amplification time in DNA-STR analysis to 1 hour， realizing the preset goal of completing STR classification of a blood sample within 2 hours， representing a leading domestic and international advanced level.

研究成果主要应用于刑事侦查排查工作，将法医DNA-STR检测时间缩短至2小时内。

The research results are mainly used in criminal investigation and troubleshooting， thereby reducing forensic DNA-STR detection time to 2 hours.

基于太赫兹合成孔径雷达的高分辨人体安检系统

High Resolution Human Body Security System Based on Terahertz Synthetic Aperture Radar

该系统采用主动式扫描技术，可提高物体反射的信号能量，更有利于探测器获取回波信号；采用开关式阵列技术，可避免多元器件同时工作时的相互干扰，从而增强了信号接收质量，提高了成像图像的空间分辨率；采用单阵列运动控制技术，可结合成像算法形成完全聚焦的三维图像。

The system uses active scanning technology to improve the signal energy reflected by the object， which is more conducive for the detector to obtain echo signals; by using switch array technology to avoid mutual interference of multi-device at the same time， the system enhanced the signal receiving quality and improved spatial resolution of the image; using the single array motion control technology to combine with imaging algorithm to form a fully focused three-dimensional image.(www.xing528.com)

采用成像识别技术，识别并自动判断人体以外物品的危险等级，并利用三维全息人体成像技术，构建三维人体模型，将识别出来的物体用三维人体模型显示出来，隐藏衣物和私密部位，保护隐私。

Imaging recognition technology has been adopted to identify and automatically determine the dangerous level of the accidental object on the human body. Three-dimensional holographic human imaging technology is used to build three-dimensional human body model to identify objects with three-dimensional human body models which can hide clothing and private areas for privacy.

光纤振动探测报警系统

Optical Fiber Vibration Detection and Alarm System

基于太赫兹合成孔径雷达的高分辨人体安检系统实验样机
High-resolution human body security system experimental prototype

该系统采用线性还原，智能模式识别技术，在光路原理上解决了环境温度、偏振变化带来的干涉信号稳定问题，具有防范级别高，误、漏报少，系统可靠性、稳定性好等优点。

The system uses linear restoration and intelligent recognition technology. In the principle of optical path， it solves the interference signal stability problem caused by ambient temperature and polarization change with advantages of high level prevention， less error and leakage， system reliability and stability.

除监控室内的监测终端需能源供给外，布设于防区内的传感、通讯元器件均为无需能源供给的光缆，因此整套系统无需电力供给，防火、防爆，且不需作任何防雷、防磁处理。对高温、低温、强光、灰尘、雨、雪、雾、霜等恶劣的气候条件均有很好的适应性。不受地形限制，也不会破坏既有的环境。光纤、光缆性能稳定，耐腐蚀，在潮湿的气候环境，甚至水下等多种环境中均能长期使用，绿色、清洁、节能、环保，具有布设自由隐蔽特点。

Except for the monitoring terminal in monitor room that needs energy supply， the layout of the sensor in the defense area，communication components as well as the entire system need no energy supply cables. So the equipment of power， fire， antiexplosion， and any lightning protection， anti-magnetic treatmentare all unnecessary. Also it has very good adaptability for high temperature， low temperature， blaze， dust，rain， snow， fog， frost and other harsh climatic conditions. Without restrictions in terrain and damage in the existing environment， the fiber is stable and corrosion-resistant in humid climate and can even sustain in various underwater environment featuring green， clean， energy-saving， environmental-friendly with convert layout.

通过快速个体识别技术开发的Expressmarker 16快速检测试剂盒、Expressmarker 6+1快速检测试剂盒，在测试的准确性、均衡性、稳定性方面均已达到了国际同类产品的技术水平。该课题的研究成果已试用于实际案件的检验，可明显提高法医DNA-STR的分型速度，为快速打击犯罪提供了新的手段。此外，快速个体识别技术的研究成果——Expressmarker 16 STR荧光检测试剂盒已产品化， 该成果可以在2个小时内完成样本的DNA分析，及时锁定罪犯或排除嫌疑，为刑事案件的快侦快破提供新的利剑。同时，该成果还可以取代目前被广泛应用的耗时且昂贵的进口产品，并填补国内相关技术和产业的空白，提升我国整个核酸检测产业的竞争力。

The rapid detection kit Expressmarker 16 and Expressmarker 6+1 developed by rapid individual identification technology have reached international level of similar products in accuracy， equality and stability of the test. The research results of this topic have been tried in the examination of the actual case， remarkably improved the forensic DNA-STR classification speed， providing a new means for rapid crackdown on crimes.Moreover， Expressmarker 16 STR fluorescence detection kit has been commoditized and been used as a new means for quick combat on criminals with the sample DNA analysis completed within 2 hours to lock down the criminals or exclude suspects in time， providing a trump card for rapid solving criminal cases. At the same time， it can fill the gap in domestic technological and industrial fields by replacing current widely-used time-consuming and expensive imported products， thereby enhancing the competitiveness of China’s entire nucleic acid detection industry.

基于太赫兹合成孔径雷达的高分辨人体安检系统曾在第三届中国（上海）国际技术进出口交易会“张江国家自主创新示范区”专区展出，并受到上海张江高新区的重点支持。据统计，我国共有180个境内民用航空机场， 5 576个全国铁路共有车站，这些都是潜在的太赫兹人体检查仪用户。本系统具有高分辨率的检测质量和高速的检测流程，能完美契合我国国情，为普通老百姓提供更加安全和便利的安检环境。

High-resolution human security system based on terahertz synthetic aperture radar was exhibited at the 3rd China (Shanghai) International Technology Import and Export Fair in “Zhangjiang National Independent Innovation Demonstration Zone”， which has been greatly supported by Shanghai Zhangjiang High-tech Zone.According to the statistics， there are 180 domestic civil airports and 5 576 national railway station in China， which are potential users for terahertz human body examination instrument. The system has a high resolution detection quality and high-speed detection process， which perfectly meet our national conditions providing a more secure and convenient security environment for ordinary people.

光纤振动探测报警系统成果已在上海世博会博物馆中应用，为特殊结构高级别防范场所开创性地提出了切实可行的解决方案，并提供了稳定有效的应用系统，得到了世博会安保及公安部门的高度评价。光纤振动探测报警系统已在新疆多处高级别安防建设中应用，并正在红其拉甫口岸开展工程实施。未来，可通过我国“一带一路”政策，依托国家相关经济政策，例如国家援助项目的贷款，优先应用于相关国家的安全建设。

Fiber optic vibration detection and alarm system has been applied in the Shanghai World Expo Museum and brought up pioneering and applicable resolution for special structured high-level prevention sites， providing a stable and effective application system which was highly praised by the Expo security and public security departments. The optical fiber vibration detection and alarm system has been applied in many high-level security constructions in Xinjiang and is now implementing in Hong Qi La Fu Guo Men. In the future， through the“Belt and Road”policy and relying on national economic policies such as national aid project loans， it can be applied to relevant countries in security construction in priority.

上海世博会博物馆屋顶防入侵探测示范工程
Anti-intrusion project of roof of World Expo museum

（上海市公安局、上海理工大学和复旦大学等单位供稿，虞俭等整理）

(Contributed by Shanghai Municipal Public Bureau of Security， University of Shanghai for Science and Technology and Fudan University， sorted by Yu Jian)