Diagnosing and troubleshooting a heating, ventilation, and air conditioning system

Patent metadata

Field	Value
Publication number	US-10168065-B2
Application number	US-201514712066-A
Country	US
Kind code	B2
Filing date	May 14, 2015
Priority date	Jan 19, 2015
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

In some embodiments a system for troubleshooting an HVAC system includes, a control unit communicatively coupled to a first plurality of HVAC units and a first interactive display. The control unit may connect to a Wi-Fi network generated by a wireless access point connected to the Internet. The control unit detects and connects to a control server over the Internet using the wireless access point. The control unit may detect a local user device over the Wi-Fi network, wherein the local user device may control the plurality HVAC units by communicating with the control unit over the Wi-Fi network. The system may include a mobile troubleshooting device that communicates with the control unit using a Wi-Fi direct protocol without accessing the Wi-Fi network. The system may include a remote troubleshooting device that communicates with the control unit over a control connection established between the control server and the control unit.

First claim

The invention claimed is:

1. A system for troubleshooting a heating, ventilation, and air-conditioning (HVAC) system, comprising:
a control unit communicatively coupled to a first plurality of HVAC units and a first interactive display; the control unit operable to:
connect to a Wi-Fi network, the Wi-Fi network generated by a wireless access point connected to an Internet;
detect and connect to a control server over the Internet using the Wi-Fi network; and
detect a local user device over the Wi-Fi network, the local user device operable to control the plurality HVAC units by communicating with the control unit over the Wi-Fi network;

a mobile troubleshooting device, the mobile troubleshooting device operable to communicate with the control unit over an HVAC network using a Wi-Fi direct protocol, wherein the HVAC network is separate from the Wi-Fi network and the mobile troubleshooting device accesses the HVAC network without accessing the Wi-Fi network;
a remote troubleshooting device, the remote troubleshooting device operable to communicate with the control unit over a control connection established between the control server and the control unit, wherein at least one of the mobile troubleshooting device and the remote troubleshooting device are operable to diagnose an operational issue in the control unit; and
wherein in response to a failure in the wireless access point, the remote troubleshooting device is operable to communicate with the control unit through the mobile troubleshooting device, the mobile troubleshooting device acting as a bridge between the control unit and the remote troubleshooting device.

2. The system of claim 1 , where the control server notifies the local user device that the remote troubleshooting device has connected to the control unit.

3. The system of claim 1 , wherein the control unit is operable to transmit a permission request to the local user device over the Wi-Fi network before communicating with the remote troubleshooting device.

4. The system of claim 1 , further comprising a remote user device, the remote user device operable to communicate with the control unit by accessing the control unit through the control server over the Wi-Fi network.

5. The system of claim 1 , wherein the mobile troubleshooting device is further operable to connect with the control server over the Internet using a mobile telecommunications technology.

6. The system of claim 5 , wherein the mobile troubleshooting device is further operable to access the control server to access operational parameters regarding the control unit.

7. A control unit for operating a heating, ventilation, and air-conditioning (HVAC) system, comprising:
a first interface operable to facilitate communications with a first plurality of HVAC units;
a second interface operable to facilitate communication with an interactive display;
a Wi-Fi module operable to detect a Wi-Fi network, the Wi-Fi network comprising a wireless access point connected to an Internet; and
a processor communicatively coupled to the first interface, the second interface, and the Wi-Fi module, the processor is operable to:
connect, using the Wi-Fi module, to the Wi-Fi network;
connect, using the Wi-Fi module, to a local user device over the Wi-Fi network;
connect, using the Wi-Fi module, to a mobile troubleshooting device over an HVAC network using a Wi-Fi direct protocol without using the Wi-Fi network, wherein the HVAC network is separate from the Wi-Fi network;
receive, using the Wi-Fi module, a connection request from a remote trouble-shooting device over the Internet using the Wi-Fi network;
transmit, using the Wi-Fi module, a permission request to the local user device over the Wi-Fi network;
receive, using the Wi-Fi module, a permission notification from the local user device over the Wi-Fi network; and
approve, using the Wi-Fi module, the connection request from the remote troubleshooting device;
detect a failure in the wireless access point; and
connect, using the Wi-Fi module, to the remote trouble shooting device through the mobile trouble shooting device using the HVAC network.

8. The control unit of claim 7 , wherein the processor is further operable to: notify, using the Wi-Fi module, the local user device that a connection was made with the remote troubleshooting device.

9. The control unit of claim 7 , wherein the Wi-Fi module receives the connection request from the remote troubleshooting device over a control connection established with a control server over the Internet using the Wi-Fi network.

10. The control unit of claim 7 , wherein the mobile troubleshooting device is further operable to connect with the control server over the Internet using a mobile telecommunications technology.

11. A system for trouble shooting a heating, ventilation, and air-conditioning (HVAC) system, comprising:
a first control unit communicatively coupled to a first plurality of HVAC units;
a second control unit communicatively coupled to a second plurality of HVAC units;

wherein the first control unit communicatively couples to the second control unit over an HVAC network using a Wi-Fi direct protocol and the first control unit and the second control unit are operable to connect to a Wi-Fi network generated by a wireless access point connected to an Internet, wherein the HVAC network is separate from the Wi-Fi network;
the first control unit is further operable to detect a local user device over the Wi-Fi network, the local user device operable to communicate with the first and second control units over the Wi-Fi network;
a mobile troubleshooting device, the mobile troubleshooting device operable to diagnose an operational issue with at least one of the first plurality of HVAC units and the second plurality of HVAC units by communicating with the first control unit using a Wi-Fi direct protocol without accessing the Wi-Fi network; and
a remote troubleshooting device, the remote troubleshooting device operable to communicate with at least one of the first control unit and the second control unit over the Internet using the Wi-Fi network; and
wherein in response to a failure in the wireless access point, the remote troubleshooting device is operable to communicate with at least one of the first control unit and the second control unit through the mobile troubleshooting device, the mobile troubleshooting device acting as a bridge between at least one of the first control unit and the second control unit and the remote troubleshooting device.

12. The system of claim 11 , wherein the second control unit fails to connect to the Wi-Fi network, and in response, the mobile troubleshooting device is operable to diagnose a connection issue with the second control unit by communicating with the first control unit using the Wi-Fi direct protocol.

13. The system of claim 12 , wherein the remote troubleshooting device communicates with the first control unit over a control connection established between a control server and the control unit.

14. A system for trouble shooting a heating, ventilation, and air-conditioning (HVAC) system, comprising:
a first control unit is communicatively coupled to a first plurality of HVAC units, the first control unit is communicatively coupled to an Internet using a USB Ethernet dongle;
a second control unit communicatively coupled to a second plurality of HVAC units, wherein the second control unit is communicatively coupled to the first control unit over an HVAC network using a Wi-Fi direct protocol; and
the first control unit is operable to:
connect with a local user device and a mobile trouble shooting device using th

Assignees

• Lennox Ind Inc

Inventors

• Castillo Daniel A
• Charavda Jayprakash
• Ho Nguyen T
• Khiani Sunil K

Classifications

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• F24F11/52

  Indication arrangements, e.g. displays · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• F24F2110/10

  Temperature · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title