Portable physiological signal multi-mode collecting device

Abstract

The invention discloses a portable physiological signal multi-mode collecting device. The device comprises an eight-passage electroencephalogram collecting electrode, a one-passage electrocatdiogram collecting electrode, a one-passage breath collecting electrode, a high-precision collecting conversion module, a low-power-consumption ARM processor, a data transmission module, a data memory module and real-time data displaying analyzing software; the eight-passage electroencephalogram collecting electrode, the one-passage electrocatdiogram collecting electrode and the one-passage breath collecting electrode are separately connected with the high-precision collecting conversion module, the high-precision collecting conversion module is connected with the low-power-consumption ARM processor, the low-power-consumption ARM processor is separately connected with the data transmission module and the data memory module, and the data transmission module is connected with the real-time data displaying analyzing software. The electroencephalogram collecting device can obtain the high common-mode rejection ratio and extremely low input noise and have ultralow power consumption, the overall power consumption is 40 ma, the integral performance is reliable, the structure is simple, the size is very small, and the device is light and can be conveniently worn on the body of a user.

Description

technical field [0001] The invention belongs to the technical field of synchronous acquisition of physiological signals, in particular to a portable multi-mode acquisition device for physiological signals. Background technique [0002] The multi-modal physiological signal acquisition device is an acquisition device that acquires brain, eye movement, muscle, ECG, and respiratory signals synchronously in a non-invasive way. This equipment is for some research that needs to collect these physiological signals for a long time and synchronously. It is designed, and at the same time, it needs to be convenient for the subjects to wear for detection, such as sleep staging research, epilepsy research, lie detection, etc. However, the existing devices are rarely capable of synchronously collecting multi-modal signals. What’s more, these devices are very large, and some even need to be powered by the mains power grid, which cannot be carried by the subjects for long-term monitoring. I...

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Problems solved by technology

However, the existing devices are rarely capable of synchronously collecting multi-modal signals. What’s more, these devices are very large, and some even need to be powered by the mains power grid, which cannot be carried by the subjects for long-term monitoring. It increases the difficulty of collecting signals and affects the progress of medical treatment and scientific research

[0003] Existing EEG acquisition devices generally use traditional signal conditioning modules, such as preamplifiers, analog notch filters, etc. to separate and acquire signals. Electrical signals, they not only have relatively low common-mode rejection, but also the increase of analog devices not only increases the size and cost of the circuit, but also the noise of the device itself will affect the quality of EEG signals

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