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AN-000240

Document Number: AN-000240

Page 19 of 23

Revision: 2.0

Figure 3-14. Example of a

“Hard Floor” output

plot. (Real-time plot at time 0 being current value)

Figure 3-15. Example of a plot of a transition

from ‘

Hard

Floor’ to ‘

Soft

Floor’.

(Real-time plot at time 0 being current value)

Hard

Soft

Threshold

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Summary of Contents for DK-CH101

Page 1: ...and information herein without notice Chirp Microsystems 2560 Ninth Street Ste 200 Berkeley CA 94710 U S A 1 510 640 8155 www chirpmicro com Document Number AN 000240 Revision 2 0 Release Date 03 04...

Page 2: ...ware 5 2 1 2 Using SmartSonic Module Sensor 6 2 1 3 Flash SmartSonic FW 7 2 2 CH101 CHIRP SENSOR MODULE MOUNTING 8 3 GUI 9 3 1 LAUNCH GUI 9 3 2 GUI FIELDS AND WIDGETS 9 3 3 SETTINGS AND TUNING 10 3 3...

Page 3: ...w the floor type detection demo hardware and software setup Run the floor type detection application Robofloor GUI Understand how to set the floor height and proper mounting Tune parameters and data o...

Page 4: ...etailed module and module integration information The CH101 sensor a single pulse echo sensor is an ultrasonic transceiver that can transmit and receive ultrasound signals These sensors measure the ro...

Page 5: ...Below is the list of available f w package s available The X in the file name is the version number The latest file should be provided Table 2 1 Available f w for Standalone Demo Description FW Floor...

Page 6: ...ientation to prevent flex cable hitting other components a Sensor 0 J6 b CH101 Note Horn Housing may differ from picture 2 Move jumper to FTDI slot after board has been programmed 3 Connect all J3 jum...

Page 7: ...o 7 application or use command prompt Download Atmel Studio from their website if needed Link https www microchip com mplab avr support atmel studio 7 3 Pull down the Tools menu Tools Device Programmi...

Page 8: ...unting suggestions The mechanical integration guide listed in the Reference Documentation section can be reviewed for a deeper dive into the module assembly and further explanation on the requirements...

Page 9: ...r Gui demo robofloor X X X Ensure proper firmware is flashed on SmartSonic 3 Launch floor_demo exe 4 Hit Connect and the detection will start 3 2 GUI FIELDS AND WIDGETS Figure 3 1 Robo Floor GUI Inter...

Page 10: ...s algo configurations etc click the and Open documentation dropdown 3 3 SETTINGS AND TUNING The GUI is used to display real time plots and output numerical values of its scans with automatic auto or c...

Page 11: ...le to the desired location with the horn housing facing downward to the floor surface The sensor must be facing the floor surface with no tilt or reflective surroundings For more information on module...

Page 12: ...oundings For more information on module mounting refer to Section 2 2 2 In the unpacked folder RoboFloor_vX X X exe and in the GUI folder open Gui demo robofloor x x x 3 Click the settings icon to inp...

Page 13: ...pical is 8 Start index of window before floor reflection Shift this setting to where ringdown begins or to desired starting point Customize ringdown length Define the size of ringdown window typical r...

Page 14: ...er of samples Set the max number of samples to process typical value should cover the whole floor window Customize range threshold decay factor Decay factor of the threshold 0 100 Impacts short distan...

Page 15: ...ins each of the display windows and widgets 3 4 1 Real Time Plots Magnitude Echoes measured by the sensor o Magnitude plot of range vs amplitude for the sensor Figure 3 8 Plot Magnitude Floor Metric D...

Page 16: ...istance between floor and sensor o Plot of distance to floor over time for the sensor Figure 3 10 Plot Floor Range ASCAN Amplitude scan o Bright white areas in the plot represent high amplitude reflec...

Page 17: ...such as a carpet will output a 0 while moving over a Hard Floor such as a hardwood floor will output a 1 Soft Floor Detection o Floor Type of 0 and a metric below the detection threshold will display...

Page 18: ...ition from Soft Floor to Hard Floor Real time plot at time 0 being current value Hard Floor Detection o Floor Type of 1 and a metric below the detection threshold will display a Hard Floor along with...

Page 19: ...3 Revision 2 0 Figure 3 14 Example of a Hard Floor output plot Real time plot at time 0 being current value Figure 3 15 Example of a plot of a transition from Hard Floor to Soft Floor Real time plot a...

Page 20: ...NDIX 4 1 TROUBLESHOOTING BAD TUNING 1 Ringdown settings Example settings o Sensor Height 48mm o ringdown_start_idx 5 Issues o Latency affected o Bad data in the ringdown phase o Hard to distinguish fl...

Page 21: ...Page 21 of 23 Revision 2 0 2 Floor Distance settings Example settings o Module mounted at 48mm o floor_start_idx 15 o Moved from hard to soft then back to hard surface Issues o Latency affected o Floo...

Page 22: ...23 Revision 2 0 3 Module not set to proper floor distance Example settings o Sensor Height 25mm and 60mm o Module mounted at 48mm Issues o Floor detection accuracy o Floor type metric o Can detect th...

Page 23: ...nt or from the use of products and services detailed therein This includes but is not limited to claims or damages based on the infringement of patents copyrights mask work and or other intellectual p...

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