Tianjin Unveils World's Smallest, Lightest Non-Invasive BCI System
Tianjin University's Haihe Laboratory of Brain Computer Interaction and Human Machine Integration has unveiled a new non invasive brain computer interface, or BCI, system. This device is cube shaped and fully integrated, reportedly weighing approximately 3 grams and occupying roughly 2 cubic centimetres. The university describes it as the smallest and lightest non invasive BCI system developed to date.
The new system from the Haihe BCI lab combines EEG electrodes, signal circuitry, a battery, and wireless transmission into a single, compact unit. Unlike most non invasive EEG equipment, which typically takes the form of caps, helmets, or headbands, this device is designed with a specific structure that allows it to sit on the scalp, concealed within the hair. The team reports the system is sufficiently light that its presence is almost imperceptible to the wearer.
The laboratory presents this device as a solution to three persistent challenges in the field of BCIs: physical form factor, signal quality, and battery endurance. And, according to the university, its primary performance metrics align with the requirements of GB 9706.226-2021, China's national medical device standard for electroencephalographs. This compliance ensures its capability to accurately and consistently detect weak brain signals. With a sampling rate of 1,000 Hz, the system operates for between 8 and 10 hours on a single charge, enabling prolonged, uninterrupted brain computer interaction tasks.
The team has identified a broad spectrum of potential applications for the system. In clinical and consumer contexts, the device is intended for extended monitoring of physiological and pathological indicators related to EEG, in addition to facilitating brain controlled games and the control of various devices. Its utility also extends to educational and research environments, where it supports multi person hyperscanning, allowing simultaneous recording of brain activity from several individuals, and real time measurement of cognition during teaching sessions. The system can also function as a non invasive signal source for sleep staging and neurofeedback.
Furthermore, the laboratory is adapting the system for applications in workplace safety. So, under the direction of authorities responsible for special operations and emergency management, the lab is collaborating with prominent companies and universities. This collaborative effort aims to establish a BCI and smart wearable safety management model tailored for workers engaged in special operations, with the objective of safeguarding individuals in high risk occupations.
The Haihe lab, recognised as one of China's earliest BCI research teams, receives backing from the Tianjin municipal government and was established by Tianjin University. Its operational scope spans the entire technology stack, encompassing the development of chips and electrodes, core algorithms, system integration, and various platforms. According to Pandaily, the university states that the team has assisted in bringing more than 20 BCI medical devices to market, providing benefits to thousands of patients. Specific pricing details or a launch date for the new system have not been disclosed.
Tianjin University's Haihe lab developed a 3 gram, 2 cubic centimetre non invasive BCI system.
The device integrates electrodes, battery, and wireless link, designed to be hidden in hair.
It meets China's national medical device standard GB 9706.226-2021, offering 8 to 10 hours of operation.
Applications include clinical monitoring, brain controlled games, multi person hyperscanning, and workplace safety.
No pricing or launch information for the system has been publicly released.
Source: Pandaily
