Identifying inaccuracy in air quality detection

• US 9,952,189 B1
• Filed: 12/20/2016
• Issued: 04/24/2018
• Est. Priority Date: 12/20/2016
• Status: Active Grant

• Current Assignee: Esmart Tech Incorporated
• Original Assignee: Esmart Tech Incorporated
• Inventors: Chen, Li, Fok, Kenny, Diplock, David, Bhalodia, Niral, Xiong, Ying
• Primary Examiner(s): Barbee, Manuel L
• Assistant Examiner(s): NIMOX, RAYMOND LONDALE
• Application Number:
  US15/385,714
• Time in Patent Office: 490 Days
• CPC Class Codes: G01N 33/007 Arrangements to check the analyser calibrating gas analysers G01N33/0006
• CPC Class Codes: G01N 33/0073 Control unit therefor

Abstract

An automated method of detecting measurement inaccuracy in an air quality detection system includes: receiving an air quality measurement from at least two sensors; determining a difference among the received air quality measurements; and comparing the difference to a threshold value. A system that detects measurement inaccuracy in an air quality detection includes: multiple smart residue avoidance and inaccuracy detection (SRAID) devices; and a server. An SRAID device includes: a plurality of air quality detection sensors; a controller able to: receive measurements from the plurality of air quality detection sensors; calculate a difference among the received measurements; and generate a notification if the difference exceeds a threshold value; and a communication module able to communicate with at least one of a server and an air flow controller device.

Claims

1. An automated method of detecting measurement inaccuracy in an air quality detection system, the method comprising:

receiving a first air quality measurement from a first sensor located at a first location along an air flow pathway;

receiving a second air quality measurement from a second sensor located at the first location along an air flow pathway;

determining a difference between the first air quality measurement and the second air quality measurement in order to identify a mismatch between the first sensor and the second sensor;

comparing the mismatch to a maximum threshold value; and

adjusting at least one physical operating parameter of the air quality detection system if the difference exceeds the maximum threshold value, wherein the at least one physical operating parameter comprises at least one of fan speed and heat.

2. The automated method of claim 1, wherein adjusting the at least one physical operating parameter comprises sending a command to an air flow controller device.

3. The automated method of claim 1, wherein the receiving, determining, comparing, and adjusting are performed by a single smart residue avoidance and inaccuracy detection device.

4. The automated method of claim 1, wherein the receiving, determining, comparing, and adjusting are performed by a plurality of smart residue avoidance and inaccuracy detection devices and at least one server.

5. A system that detects measurement inaccuracy in an air quality detection, the system comprising:

a plurality of smart residue avoidance and inaccuracy detection (SRAID) devices; and

a server,

wherein each SRAID device in the plurality of SRAID devices comprises;

a first air quality sensor located at a first location along an air flow pathway;

a second air quality sensor located at the first location along an air flow pathway; and

a communication module that communicates with the server, and

wherein each SRAID device in the plurality of SRAID devices;

retrieves a first measurement from the first air quality sensor;

retrieves a second measurement from the second air quality sensor;

generates a first difference between the first measurement and the second measurement;

determines whether the first difference is greater than a first threshold value; and

adjusts at least one air flow controller device if the difference is greater than the first threshold value.

6. The system of claim 5, wherein the server:

compares measurements received from a set of SRAID devices from among the plurality of SRAID devices;

generates a notification if a difference among the compared measurements is greater than a second threshold value; and

sends the notification to at least one of a particular SRAID device from among the plurality of SRAID devices and a particular air flow controller device from the at least one air flow controller device.

7. The system of claim 6, wherein the set of SRAID devices is associated with a particular air flow pathway.

8. The system of claim 6, wherein the notification comprises a speed increase command related to the particular air flow controller device.

9. The system of claim 6, wherein the speed increase command is passed from the particular SRAID device to the particular air flow controller device.

10. A smart residue avoidance and inaccuracy detection (SRAID) device comprising:

a first air quality detection sensor located at a first location along an air flow pathway;

a second air quality detection sensor located at the first location along an air flow pathway;

a first mini turbulent generator associated with the first air quality detection sensor;

a second mini turbulent generator associated with the second air quality detection sensor;

a controller that;

receives measurements from the first and second air quality detection sensors;

calculates a difference between the received measurements;

adjusts at least one of the first mini turbulent generator and the second mini turbulent generator if the difference exceeds a threshold value; and

generates a notification if the difference exceeds the threshold value; and

a communication module that communicates with at least one of a server and an air flow controller device.

11. The SRAID device of claim 10, wherein the notification comprises a speed increase command that is sent by the communication module to the air flow controller device.

12. The SRAID device of claim 11, wherein the speed increase command is sent via the server.

13. The SRAID device of claim 10, wherein the first and second air quality detection sensors are arranged in a serial configuration along an air flow pathway.

14. The SRAID device of claim 10, wherein the first and second air quality detection sensors are arranged in a parallel configuration along an air flow pathway.