Connect the evidence chain of 17 drug-related personnel to quickly locate the suspect ’s foothold and drug hiding place, and use video image analysis to effectively promote the case to fix the evidence and successfully investigate the case. During the May 1st period, with the assistance of artificial intelligence, the anti-drug departments at the two levels of Inner Mongolia Autonomous Region Ulan Qab City and Jining District solved a drug-related case, arrested 17 people involved, seized 2.8 kilograms of heroin, 12,000 yuan in drug funds, and a bank card 8 sheets.


Seizure of 2.8 kilograms of heroin, artificial intelligence assists in the detection of a huge drug case

In an increasing number of investigative departments and grassroots police stations, the use of artificial intelligence technology to assist in the detection of cases has become routine. According to Peng Mei News, the artificial intelligence system that assisted the anti-drug departments to resolve this drug-related case is the Smart Police Station (SPS). The provider behind it is a Zhejiang-based artificial intelligence company Yushi Technology (hereinafter referred to as ” Yushi “).

“Development of advanced technology and data applications has helped China become the safest country in the world with the lowest crime rate, allowing citizens to take to the streets and fight strings at night.” Yu Chief Engineer Zhu Bing said in an interview with Peng Mei News.


How AI can help solve cases

Before the popularization of face recognition technology, public security departments ’investigators mainly rely on experienced police Traces of clues were found in the video surveillance. At this stage, as long as the video is available on the Internet and you can watch it steadily.

After introducing face recognition technology, using video structured algorithms, artificial intelligence can achieve all the key information of the human body in the video, for example, body shape information, age, gender , Clothes, hairstyles, glasses styles, etc. can be extracted. In this way, the artificial intelligence system can help the case-handling personnel to find the 1 from the numerous N in the database.

CanAfter extracting person features from the video, face recognition technology has ushered in a new breakthrough, and cross-mirror tracking technology has been developed. This technology can cross the camera to retrieve and recognize the identity of the person through the appearance of pedestrian wearing, posture, accessories and other physical features, so as to achieve the tracking of the pedestrian trajectory under the camera coverage area.

With these technologies, face recognition technology plays an increasingly important role in assisting the detection of cases. For example, in this case detection process, using the algorithm adopted by Yushi Technology, you can fuse the characteristics of more than 150 attributes of people, based on time, space, relationship, vision and other full data mining to achieve the same-person rule algorithm, while structured And semi-structured cross search to improve the accuracy and performance of cross-mirror tracking.

In addition to the improvement of technology, the improvement of computing power is also a very important part. “If your calculation speed is fast enough and the calculation efficiency is high enough, you can calculate in real time.” Zhu Bing said. According to him, SPS combines Yushi ’s experience in data, cloud storage, and hardware, and introduces cloud computing. After the vector calculation engine semi-structures the original data, the calculation efficiency is rapidly improved. Under the condition of computing power, a calculation can be done in the past few days or hours, and it is now basically displayed in real time.

With the improvement of technology and computing power, successful case handling becomes a matter of course. In this large-scale drug cracking case, this system helped the anti-drug department successfully cascade the chains of evidence of 17 drug-related personnel at the same time. The personnel at the site used the SPS system to quickly locate the suspect ’s foothold and drug storage location, and the video image analysis effectively promoted the fixed evidence of the case and smooth investigation.

It ’s worth mentioning that Zhu Bing told Peng Mei News that SPS can also automatically learn the process of detecting tens of millions of cases based on machine learning technology, and summarized more than 1,000 kinds The idea of ​​solving the case is deduced and automatically judged according to the characteristics of the case.


Benefiting individuals

In fact, with the upgrading of artificial intelligence technology, it is already very common to use it to solve major cases and major cases. But how to give technology to more grassroots police and police stations to benefit more people is the way for technology companies to survive in the future.

“People who use these technologies used to be the highest-level users, and it is difficult to achieve universalization of the application. But the cases that ordinary people can encounter every day are not These big cases, andIt is a very small case, such as a child lost and a cell phone stolen. “Zhu Bing said.

For example, on February 17 this year, the Ailian Police Station in Longgang District, Shenzhen received Ms. Li ’s report to the police, and her 13-year-old daughter left home early this morning Back. At that time, during the epidemic situation, a large number of police forces were invested in the front line of the epidemic, which caused a shortage of manpower and there may be a risk of infection. In such a situation, artificial intelligence has played a very helpful role.

According to Yushi Technology, at that time their smart police station system avoided the difficulty of face recognition with masks, and captured information such as clothing, posture, and age, and finally presented it to the police according to time and similarity. The girl ’s trajectory was locked the next morning. The police station remotely commanded the road police and retrieved the girl on the overpass 2 kilometers away from home.

Zhu Bing said that the previous police station accounted for Over 40% of small cases (disputes, robbery, brawls, financial losses, etc.) have a detection rate of only 15%, and police officers can only handle one case every 3-5 days. These small cases occupy great police resources, but The meaning of a family or individual is often all .

Therefore, Yushi Technology has made its smart police station system a lightweight product that can be quickly deployed. According to reports, this system is currently After its release in October 2019, there were nearly 50 actual landing projects in one quarter, and more than 1,000 actual combat cases. Among them, the fastest case resolution record was 70 minutes, and the case resolution rate increased by 50%.