Hardware implementation method and combination of emotion perception function of intelligent wearable device

A wearable device and emotion perception technology, applied in the field of smart wearables, can solve the problems of low parallelism, system stability, power and size limitations of chips, and the inability of computing speed to meet real-time requirements, so as to improve work efficiency.

Active Publication Date: 2019-06-07
昆山光微电子有限公司 +1
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AI Technical Summary

Problems solved by technology

[0004] Artificial neural networks are widely used in the fields of intelligent control and pattern recognition, but there are two main problems in the traditional general-purpose processor-based software implementation met...

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  • Hardware implementation method and combination of emotion perception function of intelligent wearable device
  • Hardware implementation method and combination of emotion perception function of intelligent wearable device
  • Hardware implementation method and combination of emotion perception function of intelligent wearable device

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Embodiment Construction

[0021] Please refer to figure 1 and figure 2 , the present invention mainly relates to a hardware implementation method of the emotion perception function of a smart wearable device, comprising the following steps:

[0022] (1) The PPG (photoplethysmography, photoelectric volume description) sensor and accelerometer transmit the collected PPG signal and acceleration signal to the FPGA (Field-Programmable Gate Array) chip;

[0023] (2) The FPGA chip performs feature extraction on the PPG signal and the acceleration signal to extract four physical quantities of heart rate, respiration rate, moving speed and moving frequency;

[0024] (3) Input the above four physical quantities of heart rate, breathing rate, moving speed and moving frequency into the probability-based RHPNN (Robust Heteroscedastic Probabilistic Neural Network) neural network to realize the classification of emotions.

[0025] Please refer to figure 2 , the RHPNN neural network has a 4-layer feed-forward str...

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Abstract

Disclosed is a hardware implementation method of an emotion perception function of an intelligent wearable device. The method includes the following steps: a PPG(photoplethysmography) sensor and an accelerometer transmit collected PPG signals and acceleration signals to a FPGA(Field-Programmable Gate Array) chip; the FPGA chip carries out feature extraction of the PPG signals and the accelerationsignals to obtain four physical quantities of heart rate, respiration rate, moving speed and moving frequency; and inputting the four physical quantities of heart rate, respiration rate, moving speedand moving frequency into an RHPNN(Robust Heteroscedastic Probabilistic Neural Network) based on probability to realize classification of emotion. The hardware implementation method and combination sense changes of emotion of a user in real time, remind the user to pay attention to metal health and adjust a working state in time, provide guarantee for mental health of the user, and can improve theworking efficiency of the user.

Description

technical field [0001] The invention relates to the field of smart wearables, in particular to a hardware implementation method and combination of the emotion perception function of smart wearable devices. Background technique [0002] With the development of mobile communication technology and the increasing popularity of the mobile Internet, the traditional Internet has been migrating to the mobile Internet, and smart wearable devices have developed very rapidly in recent years. Smart wearable devices are new forms of terminal devices that can be worn directly on the body or exist in the form of accessories or carry-on items, integrate software and hardware, and have certain computing capabilities. It seems difficult to combine wearable devices and FPGAs. According to market conditions, most of the current wearable devices use ARM architecture processors. It is easier to achieve the optimal solution. And Lattice has pulled the battlefield of wearable chips from the ARM a...

Claims

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Application Information

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IPC IPC(8): A61B5/16
Inventor 李建茂李佳王玮冰何征龄贾天震
Owner 昆山光微电子有限公司
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