China, April 26, 2018, Ams AG, the world's leading supplier of high-performance sensor solutions (ams AG, Swiss stock exchange: AMS) today announced the launch of the first integrated vital sign sensor reference based on AS7024 Design. The solution can achieve accurate, fast and convenient sleeveless blood pressure measurement in all weather conditions.
The AS7024-based new vital sign sensor reference design integrates all hardware components including the AS7024, as well as software for performing blood pressure measurements, heart rate measurements (HRM), heart rate variability (HRV), and electrocardiogram (ECG). The AS7024 sensor IC consists of three LED lamps, photodiodes, an optical front end and program generator for HRM, and an analog front end for ECG, all integrated in a miniature 6.1mm x 2.7mm package. Through an external sensor interface, the reference The design can also be used to calculate vagal tone and arterial elasticity, as well as skin temperature and skin resistivity.
The AS7024 is compact, especially suitable for fitness wristbands with limited circuit board space, smart watches, sports watches and smart patches. At the same time, it opens the door for a wider range of vital signs monitoring and automotive or personal health monitoring and other terminal markets.
AS7024 HRM operation is based on photoplethysmography (PPG). The pulse rate is measured by the vascular-adjusted sampling light. When the blood pulse passes, the blood vessel expands and contracts. This technique is validated. Electrocardiogram is Standard method for measuring electrical impulses generated by the sinus node of the heart.
The AS7024 reference design uses proprietary software developed in collaboration with partners to analyze and synchronize HRM and ECG measurements to calculate blood pressure. According to the IEEE Wearable Sleeveless Device Standard, AS7024 has passed clinical trials performed by the University of Graz Medical University, Austria Verification can provide accurate blood pressure measurements.
The results generated by the reference design were also compared with the reference measurements made using a surgical-grade cuff blood pressure measuring instrument. Validated in more than 1,000 measurements performed by more than 100 subjects aged 18-65 years, AS7024 Reference Design Accurate to Systolic Blood Pressure<± 7.5 mmHg, 舒张压<± 5.5 mmHg.
Thomas Riener, executive vice president of Color and Spectral Sensing at Emex Semiconductor, said: “The AS7024 reference design and its blood pressure measurement algorithm have made major breakthroughs in personal health monitoring technology. Smart wearables using the AS7024 can provide all-weather blood pressure measurements, And for many use cases, it is accurate enough and reliable. It will also significantly improve the user experience, making it out of the inconvenience and discomfort caused by regular cuff measurements, providing blood pressure, heart rate and heart activity in real environmental conditions. Continuous measurement. AS7024 vital sign sensor can now be mass-produced. When the sensor front-end IC's order quantity reaches 1 million, its unit pricing is less than 2 US dollars.
For a reference design and evaluation board for the AS7024, request it from AIM Semiconductors and an authorized sales representative. It includes the Emblems Simblee Bluetooth® wireless connectivity module, wireless charging capabilities, and display heart rate, blood pressure, vagal tone, and arterial elasticity measurements Smartphone application.