Method and apparatus to optimize power to maximize performance of wireless mesh sensors and control networks

• US 9,024,717 B2
• Filed: 02/15/2008
• Issued: 05/05/2015
• Est. Priority Date: 02/16/2007
• Status: Active Grant

• Current Assignee: Siemens Industry Incorporated (Siemens AG)
• Original Assignee: Siemens Industry Incorporated (Siemens AG)
• Inventors: Nass, Geoffrey D., McFarland, Norman R., Songakul, Pornsak
• Primary Examiner(s): YANG, JAMES J
• Application Number:
  US12/032,409
• Publication Number:
  US 20080198036A1
• Time in Patent Office: 2,636 Days
• Field of Search: 340/825, 340/825.22, 3404251-4252, 340/539.3, 340/568.2, 340/693.3, 340/7.32, 340/1.1, 370/252, 370/338
• US Class Current: 340/4.3
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2838 Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 2012/2841 Wireless
• CPC Class Codes: H04L 2012/285 Generic home appliances, e.g. refrigerators
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/245 taking into account received signal strength
• CPC Class Codes: H04W 52/246 where the output power of a terminal is based on a path parameter calculated in said terminal
• CPC Class Codes: H04W 52/247 where the output power of a terminal is based on a path parameter sent by another terminal
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/48 during retransmission after error or non-acknowledgment
• CPC Class Codes: H04W 84/22 with access to wired networks

Abstract

An automation component configured for optimized wireless communication within a building automation system is disclosed. The automation component includes a wireless communications component, a processor in communication with the wireless communications component, a memory in communication with the processor, the memory configured to store computer readable instructions which are executable by the processor. The computer readable instructions being programmed to process at least one communication variable received via the wireless communications component; to optimize a communication or radio transmit power level associated with the wireless communication component, wherein the optimized communication power level is a function of the at least one communication variable; and an adjustment of the communication power level associated with the wireless communication component based on the optimized communication power level.

Claims

1. An automation component configured for optimized wireless communication within a building automation system, the automation component comprising:

a wireless communications component;

a processor in communication with the wireless communications component;

a memory in communication with the processor, the memory configured to store computer readable instructions which are executable by the processor;

wherein the computer readable instructions are programmed to;

process optimization parameter data received via the wireless communications component, wherein the optimization parameter data includes one or more optimization parameters of a first group including;

a proximity to other wireless communication components, a number of wireless communication components stored in a routing table in communication with the memory;

a communications response time; and

an average round trip communications time; and

wherein when only one optimization parameter is selected from the first group, the optimization parameter data includes one or more optimization parameters of a second group including;

a link quality index between the wireless communications component and one of the other wireless communications components, the link quality index comprising a received signal strength indication (RSSI) and a communication completion rate between the wireless communications component and the one other wireless communications component;

a number of communication retries to complete a communication between the wireless communications component and the one other wireless communications component; and

a type of wireless component;

optimize a communication power level associated with the wireless communication component based on the received optimization parameter data; and

adjust the communication power level associated with the wireless communication component based on the optimized communication power level.

2. The automation component of claim 1, wherein the wireless communication component is a transceiver.

3. The automation component of claim 2, wherein the transceiver is a ZigBee compliant device.

4. The automation component of claim 2, wherein the transceiver is an 802.11 compliant device.

5. The automation component of claim 1, wherein the optimization parameter data further includes one or more of a number of hops for a second automation component to reach the present automation component;

a number of hops to a controller operable within the building automation system;

a number of child automation components.

6. The automation component of claim 1, wherein the wireless communication component is configured to communicate the optimized communication power level associated with the wireless communication component to a second wireless communication component.

7. The automation component of claim 6, wherein the wireless communication component is configured to communicate a second optimized communication power level associated with a second wireless communication component and the optimization parameter data to the second wireless communication component.

8. The automation component of claim 1, wherein the memory is configured to store a plurality of values for the optimization parameter data and wherein the processor is configured to compare the plurality of values as a function of time.

9. The automation component of claim 1, wherein the communication power level is a radio transmit power level.

24. The automation component of claim 1, wherein the computer readable instructions are programmed to detect a value of the communication completion rate and process the optimization parameter data received via the wireless communications component, the optimization parameter data including the link quality index comprising the RSSI and the value of the communication completion rate.

10. A building automation system configured for optimized wireless communication, the building automation system comprising:

a first automation component having a first wireless communication component, the first automation component configured to;

process at least two optimization parameters, wherein at least one of the at least two optimization parameters is selected from a first group consisting of;

a proximity to other wireless communication components;

a number of wireless communication components stored in a routing table in communication with a memory;

a communications response time; and

an average round trip communications time; and

wherein when only one optimization parameter is selected from the first group, at least one of the at least two optimization parameters is selected from a second group consisting of;

a link quality index between the first wireless communication component and one of the other wireless communication components, the link quality index comprising a received signal strength indication (RSSI) and a communication completion rate between the first wireless communication component and the one other wireless communication component;

number of communication retries to complete a communication between the first wireless communication component and the one other wireless communication component; and

a type of wireless component;

optimize a communication power level, wherein the optimized communication power level is a function of the at least two optimization parameters; and

a second automation component having the one other wireless communication component, the one other wireless communication component in communication with the first wireless communication component, wherein the second automation component is configured to;

adjust the communication power level associated with the one other wireless communication component based on the optimized communication power level.

11. The automation component of claim 10, wherein the first wireless communication component and the one other wireless communication component are transceivers.

12. The automation component of claim 11, wherein the transceivers are ZigBee compliant devices.

13. The automation component of claim 11, wherein the transceivers are 802:

11 compliant devices.

14. The automation component of claim 10, wherein the at least two optimization parameters are further selected from the group consisting of:

number of hops for the second automation component to reach a present automation component;

number of hops to a controller operable within the building automation system; and

number of child automation components.

15. The automation component of claim 10, wherein the first wireless communication component is configured to communicate a second optimized communication power level associated with the one other wireless communication component and the at least one communication variable to the one other wireless communication component.

16. The automation component of claim 10 further comprising:

the memory, which is configured to store a plurality of values for the at least two optimization parameters; and

wherein a processor is configured to compare the plurality of values for the at least two optimization parameters as a function of time.

17. A method for optimizing a wireless communication within a building automation system, the method comprising:

storing values of at least two optimization parameters in a memory, wherein the memory and the at least two optimization parameters are in communication with a processor;

processing the stored values of the at least two optimization parameters, wherein the at least two optimization parameters relate to a wireless communications component and at least one of the at least two optimization parameters is selected from a first group consisting of;

a proximity to other wireless communications components;

a number of wireless communications components stored in a routing table in communication with the memory;

a communications response time; and

an average round trip communication time; and

wherein when only one optimization parameter is selected from the first group, at least one of the at least two optimization parameters is selected from a second group consisting of;

a link quality index between the wireless communications component and one of the other wireless communications components, the link quality index comprising a received signal strength indication (RSSI) and a communication completion rate between the wireless communications component and the one other wireless communications component;

number of communication retries to complete a communication between the wireless communications component and the one other wireless communications component; and

a type of wireless component;

optimizing a communication power level associated with the wireless communications component, wherein the optimized communication power level is a function of the at least two optimization parameters; and

adjusting the communication power level associated with the wireless communications component based on the optimized communication power level.

18. The method of claim 17, further comprising receiving the at least two optimization parameters via a transceiver.

19. The method of claim 18, wherein the transceiver is a ZigBee compliant device.

20. The method of claim 18, wherein the transceiver is an 802.11 compliant device.

21. The method of claim 17, wherein the at least two optimization parameters are further selected from the group consisting of:

number of hops for an automation component to reach a present automation component;

number of hops to a controller operable within the building automation system; and

number of child automation components.

22. The method of claim 17 further comprising:

communicating the optimized communication power level associated with the wireless communications component to the one other wireless communications component.

23. The method of claim 17, wherein storing the values of the at least two optimization parameters includes storing a plurality of values for the at least two optimization parameters and wherein the processor is configured to compare the plurality of values for the at least two optimization parameters as a function of time.