Pyreos ezPyro SMD User Manual Download Page 3

ezPyro

TM

 Flame Detection Evaluation Kit User Manual 

 

 

 

Page 3 of 18 

© Copyright Pyreos Ltd. 2020 

ezPyro

TM

 User Manual Rev. 3.1 

 

1

 

Introduction 

This document describes the ezPyro

TM

 Flame Detection Evaluation Kits and the related software for both kits. The 

purpose of these kits is to enable engineers and technicians to carry out simple and effective evaluation of ezPyro

TM

 

flame sensors, experiment with a sample Flame Detection algorithm, and to capture measured data to a PC.  

The kits are based on the ST microelectronics STM32F303K8 microcontroller. 

Please note: The software discussed in this document can only be used with the ezPyro

TM

 Flame Detection Evaluation 

Kits. 

2

 

Getting started 

2.1

 

Hardware Variations 

There are 2 variations of the hardware that can be used with the  ezPyro

TM

 Flame Detection software: the 4-sensor 

SMD and the 3-sensor TO.  

 

 

 

 

 

 

 

Figure 1: ezPyro

TM

 SMD (left) and TO (right) Flame Detection Evaluation Kits  

2.2

 

Kit contents 

1.

 

ezPyro

TM

 - Prototype Flame Sensor Demonstrator Kit (SMD or TO)  

2.

 

Micro USB-to-USB cable 

3.

 

ezPyro

TM

 Flame Detection software (Setup file included in software package) 

4.

 

USB drive with software and documentation 

2.3

 

Minimum system requirements 

1.

 

Microsoft® Windows PC (all versions supported currently) 

2.

 

GB of RAM 

3.

 

450 MB of available hard-disk space for installation, additional free space required for storing CSV files 

4.

 

1024x768 display (1280 x 1024 recommended) 

5.

 

Local administrative rights to install device drivers 

6.

 

.NET Framework 4.5 

7.

 

1 free USB port 

 

 

Summary of Contents for ezPyro SMD

Page 1: ...Rev 3 1 ezPyroTM Pyroelectric Infrared Flame Detection Evaluation Kits User Manual...

Page 2: ...THE SOFTWARE 5 7 2 CONNECTING SOFTWARE TO THE EVALUATION KIT 6 7 3 EZPYROTM SENSOR SETTINGS 7 7 4 SIGNAL VIEWING 9 7 5 FLAME DETECTION ALGORITHM 9 7 5 1 Additional Signal Viewing Features 9 7 5 2 Flam...

Page 3: ...tion Evaluation Kits 2 Getting started 2 1 Hardware Variations There are 2 variations of the hardware that can be used with the ezPyroTM Flame Detection software the 4 sensor SMD and the 3 sensor TO F...

Page 4: ...loaded from Microsoft s website A driver is needed for the STM32F303K8T6 microcontroller This is included in the software package 4 Installing the ST Microcontroller USB Driver The USB supplied contai...

Page 5: ...the functionality of the ezPyroTM sensors please consult the ezPyroTM Sensor Reference Manual The ezPyroTM Flame Detection Evaluation software runs on Microsoft Windows PCs and communicates with the e...

Page 6: ...capture board is using as shown in Figure 4 Select the desired com port If you are unsure which com port is assigned to your PCB you can unplug the USB cable and click Refresh which will remove the p...

Page 7: ...ng See Figure 7 The SMD and TO GUIs both provide the same functionality and work in the same way Sample Frequency Hz This label shows the calculated frequency of incoming data The calculation is based...

Page 8: ...available on the standard USB stick supplied with all Evaluation kits The ezPyroTM Evaluation Tool will provide raw data recording only Gain Settings The gain for the amplifier is set by selecting a...

Page 9: ...Settings on the main screen 7 5 1 Additional Signal Viewing Features The additional features which will be enabled with the algorithm are Fourier Transform frequency domain representation of the signa...

Page 10: ...nge This allows different signal levels to be visualised proportionally next to each other Freq sum This is the value acquired by summing the frequency bins set by the user shown with red columns in F...

Page 11: ...of the signal to provide a view of the frequencies that the signal is composed of These frequencies are viewed by following the steps listed in the previous section on signal viewing Figure 15 Flame...

Page 12: ...by the user High Freq Cutoff This is field is set to the value for the upper limit of frequency to be used by the algorithm Low Freq Cutoff This field is set to the lower limit of frequency to be use...

Page 13: ...m signal strengths shown in Figure 18 the effects of the thresholds and multipliers can be observed It is recommended that the Evaluation kit is put into a box so that only electrical noise levels are...

Page 14: ...d ratios As can be seen the required threshold for a flame event has been lowered to less than the signal level for both channels Human motion threshold is half the actual signal and Reject is 75 of t...

Page 15: ...ful to view the data in such a way as it shows you the actual frequencies that you should be interested in For initial testing with our Evaluation kit this is very desirable Most system designers use...

Page 16: ...due to the signal level meeting the requirements of the WUP packet 8 2 Wake Up Parameters The WUP Register As mentioned in the previous sub section the device can be woken up from the sleep state thr...

Page 17: ...st power capabilities of the system If setting the WUP registers for use in low power mode the calibration of the WUP should also be performed in low power mode as there are performance differences be...

Page 18: ...to display file and version information about the ezPyroTM Flame Sensing Evaluation Tool software Figure 24 About box 12 Further Information and Support The Pyreos website has a list resources availab...

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