Wireless smart devices having integrated force, position, acceleration, and rotational sensing for science education

• US 10,481,173 B2
• Filed: 01/05/2016
• Issued: 11/19/2019
• Est. Priority Date: 01/05/2016
• Status: Active Grant

• Current Assignee: Pasco Scientific
• Original Assignee: Pasco Scientific
• Inventors: Escott, Richard A., Reineking, Thomas, Gulley, Phillip, Wild, Scott E., Hanks, Jon D., Hanks, Ann D.
• Primary Examiner(s): Patel, Harshad R
• Assistant Examiner(s): Plumb, Nigel H
• Application Number:
  US14/988,690
• Publication Number:
  US 20170192034A1
• Time in Patent Office: 1,414 Days
• CPC Class Codes: G01C 21/166 Mechanical, construction or arrangement details of inertial navigation systems
• CPC Class Codes: G01P 13/04 Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
• CPC Class Codes: G09B 19/0069 Engineering, e.g. mechanical, electrical design computer engineering G09B19/0053
• CPC Class Codes: G09B 23/10 of solid bodies

Abstract

Described herein are wireless smart devices having integrated force, position, acceleration, and rotational sensing for science education (e.g., Newton'"'"'s laws of motion, kinematics, etc.). An integrated wireless device includes an accelerometer to generate acceleration data based on detecting a current rate of acceleration of the integrated wireless device, a shaft encoder to detect angular positional changes of a shaft or axle of the integrated wireless device over time, and at least one processing unit coupled to the accelerometer. The at least one processing unit is configured to decode angular position data of the shaft encoder into positional data and to synchronize acceleration data received from the accelerometer with the positional data. In one example, a force load cell is coupled to the at least one processing unit. The force load cell measures applied force or impact force.

Claims

1. An integrated wireless device for collecting data that measures dynamic properties of the integrated wireless device during a science experiment comprising:

an accelerometer to generate acceleration data based on detecting a current rate of acceleration of the integrated wireless device over a period of time;

a shaft encoder to detect angular positional changes of a shaft or axle of the integrated wireless device over the period of time; and

at least one processing device communicatively coupled to the accelerometer and the shaft encoder, the at least one processing device is configured to decode angular position data of the encoder into positional data over the period of time and to time synchronize the acceleration data received from the accelerometer with the positional data decoded by the at least one processing device for the science experiment over the period of time.

2. The integrated wireless device of claim 1, wherein the shaft encoder comprises an optical shaft encoder that is positioned in proximity to the shaft or axle.

3. The integrated wireless device of claim 1, further comprising:

a gyroscope that is physically aligned with the accelerometer, the gyroscope to detect rotational attributes of the integrated wireless device including pitch, roll, and yaw over the period of time.

4. The integrated wireless device of claim 3, further comprising:

a force load cell coupled to the at least one processing device, the force load cell to measure applied force or impact force over the period of time.

5. The integrated wireless device of claim 4, wherein the at least one processing device is further configured to time synchronize acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data of the force load cell over the period of time.

6. The integrated wireless device of claim 5, further comprising:

a radio frequency (RF) communication device coupled to the at least one processing device, the RF communication device to transmit RF communications to a computer or another wireless device for data collection, analysis, and display of the acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data for science education.

7. The integrated wireless device of claim 6, wherein the at least one processing device of the integrated wireless device determines acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data without any external sensors and without any wired connections to external components.

8. An integrated wireless cart for collecting data that measures dynamic properties of the integrated wireless cart during a science experiment comprising:

a motion device to generate motion data based on detecting a current rate of motion of the integrated wireless cart over a period of time;

at least one axle to rotate a plurality of wheels;

a shaft encoder to detect angular positional changes of the at least one axle over the period of time; and

at least one processing device communicatively coupled to the motion device and the shaft encoder, the at least one processing device is configured to decode angular position data of the optical shaft encoder into positional data over the period of time and to time synchronize the motion data received from the motion device with the positional data decoded by the at least one processing device for the science experiment over the period of time.

9. The integrated wireless cart of claim 8, wherein the shaft encoder is positioned in proximity to the shaft or axle.

10. The integrated wireless cart of claim 8, wherein the motion device comprises:

an accelerometer to detect acceleration data over the period of time; and

a gyroscope that is physically aligned with the accelerometer, the gyroscope to detect rotational attributes of the integrated wireless cart including pitch, roll, and yaw over the period of time.

11. The integrated wireless cart of claim 10, further comprising:

a body of the integrated wireless cart for supporting electronic components including a force load cell that is coupled to the at least one processing device, the force load cell to measure applied force or impact force over the period of time.

12. The integrated wireless cart of claim 11, wherein the at least one processing device is further configured to time synchronize acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data of the force load cell over the period of time.

13. The integrated wireless cart of claim 12, further comprising:

a radio frequency (RF) communication device coupled to the at least one processing device, the RF communication device to transmit RF communications to a computer or wireless device for data collection, analysis, and display of the acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data.

14. The integrated wireless cart of claim 13, wherein the at least one processing device of the integrated wireless cart determines acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data without any external sensors and without any wired connections to external components.

15. A method for collecting data that measures dynamic properties of an integrated wireless device during a science experiment, the method comprising:

generating, with an accelerometer of the integrated wireless device, acceleration data based on detecting a current rate of acceleration of the integrated wireless device over a period of time;

detecting angular positional changes of a shaft or axle of the integrated wireless device over time using a shaft encoder over the period of time;

decoding angular positional data into positional data of the integrated wireless device over the period of time with at least one processing device of the integrated wireless device; and

synchronizing acceleration data received from the accelerometer with the positional data decoded by the at least one processing device for the science experiment over the period of time.

16. The method of claim 15, wherein the shaft encoder is positioned in proximity to the shaft or axle of the integrated wireless device.

17. The method of claim 15, further comprising:

detecting rotational attributes of the integrated wireless device over the period of time with a gyroscope that is physically aligned with the accelerometer.

18. The method of claim 17, further comprising:

measuring applied force or impact force of the integrated wireless device using a force load cell that is integrated with the integrated wireless device over the period of time.

19. The method of claim 18, further comprising:

synchronizing with the at least one processing device acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data of the force load cell over the period of time.

20. The method of claim 19, further comprising:

transmitting, with a radio frequency (RF) communication device of the integrated wireless device, RF communications to a computer or wireless device for data collection, analysis, and display of the acceleration data received from the accelerometer, rotational data of the gyroscope, positional data, and force data for science education.