Origins

Wearable devices have made our lives more convenient, making it easy to measure various vital signs, such as blood oxygen saturation, heart rate and blood pressure. Many well-known manufacturers have also introduced new products and continued to develop more accurate products with more functions.

When communicating with our clients, we learned that to obtain more accurate test results, engineers very much hope to have a device that can flexibly set the AC, DC, waveform, frequency and amplitude of R or IR when designing the blood oxygen function. They need a simulator to verify test challenges at each stage, such as signal processing, frequency response, system integration verification, etc. 

Therefore, the AECG100 + PPG-2R-880/PPG-2R-940 Reflectance SpO2 Module came into being, which not only meets the flexible setting of PPG waveforms expected by engineers, but can also adjust the characteristic points of the waveform in a wide range and in detail. You can also customize your own R curves, no longer need to conform to established templates. 
 
Also, with the original ECG function of AECG100, it can simultaneously send out ECG and PPG signals, adjust the parameters of Pulse Wave Transit Time (PWTT), and thus verify the accuracy of the blood pressure measurement algorithms.

In addition to the complete functions and flexible testing mentioned above, we also learned from our customers that engineers often need to quickly verify products before mass production. The PPG-2R-880/PPG-2R-940 module can automatically calculate the R/IR DC value of the DUT and import it into the SpO2 table, quickly establishing an exclusive R curve, and efficiently verifying product quality. PPG- 2R-880/PPG-2R-940 also contains the function of simulating respiratory changes, which can be superimposed on the test to get closer to the real situation and make it more comprehensive.

To conduct testing more efficiently, we also provide a free Software Development Kit (SDK), which enables them to develop automated testing software by themselves, flexibly expand testing capabilities, and reduce human errors that may result from repeated settings and operations. We can use the PPG-2R-880/PPG-2R-940 module to accurately test wearable devices, ensure accuracy and consistency, and meet product specification requirements.

Functions

Basic Waveform Output

Outputs PPG Waveform, Sine, Triangle, Square, users can flexibly adjust large and fine parameters, and add DC offset signal testing.

PPG Signal Generation

Simulates Sine, Triangle, and PPG analog signals, providing signals of green, red, and infrared light. It can measure reflectance PPG heart rate, SpO2, adjust the characteristic points of the PPG waveform in a large range, includes Systolic Peak (SP), Dicrotic Notch (DN), Diastolic Peak (DP), etc.

Adjustable Pulse Wave Transit Time

Simultaneously sends out ECG and PPG signals, adjusts the time difference between the two signals (PTTp, PTTf), and verifies the accuracy of the blood pressure algorithm of DUT.

Blood Oxygen R Curve Simulation 

Simulates the R curve of DUT to verify the SpO2 and perfusion index (PI) values.
 

Saving Test Parameters

Saves test parameters of different test items for integrated testing to reduce human errors.

Raw Data Playback

Replays raw data and reproduces clinically recorded or customized waveforms.

Automated Test

Supports automated testing, using software to control the entire testing process, and manually edit auto-sequence for testing.

Highlights

Simulations that Are Closer to Time and Real Situations

 

• Provides the function of simulating respiratory changes, making the superimposed test closer to the real situation

 

Customize or Load R Curves for Quick Verification

• Quickly establish the R curve of the DUT to test the quality consistency and accuracy of the oximeter
• Provides R-curve examples of major brand manufacturers as reference for development

 

Software Development Kit for Flexible Development of Testing Program

• Users can develop automated testing software according to their needs to control the testing process, reducing the burden of repetitive operations during extensive testing