New AI surveillance systems from Tiandy and Lianxin, showcased at a Beijing expo, can assess heart rate, emotional stability, and criminal risk for law enforcement. Already used in 30+ police stations.
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Chinese technology companies have showcased new AI-powered policing equipment that they say can help law enforcement assess a suspect’s physical condition, psychological state, emotional stability, and potential risk level.
The equipment was displayed at a police and anti-terrorism technology exhibition held in Beijing. The event brought together law enforcement agencies, security companies, and foreign representatives interested in the latest surveillance and public security tools.
One of the highlighted products came from Tiandy, a video surveillance company based in Tianjin. The company presented a camera system that claims to measure several vital signs without physical contact, including heart rate, blood pressure, blood oxygen level, and blood flow rate.
According to the company’s demonstration, the camera can assess up to six people at the same time within around 10 seconds. The system displays each person’s readings beside their live image and marks abnormal indicators such as increased heart rate or blood pressure.
Tiandy said the technology could be used in police interrogation waiting areas, where several cameras could monitor dozens of detainees at once. The company said the system could also track detainees’ locations, detect possible medical emergencies, and alert officers if police procedures are not being followed.
For example, it could reportedly warn if a detainee is left unattended or if an interrogation is carried out by only one officer, which may violate internal rules.
Another company, Lianxin Technology, presented AI-enabled cameras combined with a psychological analysis large language model. The company said its system can analyse facial features and generate a personality and mental-state assessment after a person looks at the camera for several seconds.
The system’s assessment reportedly includes emotional stability, personality traits, health risks, core motivation, possible mental health crisis indicators, and risk of criminal behaviour. Lianxin said its model was built using tens of millions of human samples and had been registered with China’s cybersecurity regulator.
The company said the technology has already been used in more than 30 police stations across China. It described the product as a way to support police officers facing heavy workloads and a shortage of frontline personnel.
A third company, Anhui Wuyu Security Technology, also promoted AI monitoring systems that use cameras and audio capture to analyse mental health, emotional condition, character, and integrity. The company said its products are used by public security agencies, border inspection authorities, discipline inspection bodies, and other government-linked institutions in more than 20 Chinese provinces and cities.
The company said its system works by analysing facial skin reflections across different light wavelengths to detect blood-flow changes that cannot be seen by the human eye. The data is then processed by algorithms to estimate a person’s physiological and psychological condition.
The exhibition showed how artificial intelligence is becoming increasingly involved in law enforcement and security work, especially in areas such as surveillance, interrogation support, detainee monitoring, and risk assessment.
Supporters of the technology say these tools can reduce pressure on police officers, improve efficiency, and help detect health emergencies. However, such systems also raise questions about accuracy, privacy, and the risks of relying on AI to judge a person’s mental state or criminal risk.
The expo also attracted international attention. Indonesian representatives reportedly showed interest in Chinese security and counterterrorism equipment during the event.
The exhibition reflects China’s growing role in developing advanced policing and surveillance technology, as well as the increasing use of AI in public security systems.
Source:https://www.scmp.com/news/china/politics/article/3356636/chinese-ai-police-tech-aimed-physical-psychological-and-emotional-states
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