WEB BASED SMART SENSOR NETWORK TRACKING AND MONITORING SYSTEM

• US 20100080175A1
• Filed: 09/28/2009
• Published: 04/01/2010
• Est. Priority Date: 09/29/2008
• Status: Active Grant

• Current Assignee: STMicroelectronics Incorporated (STMicroelectronics NV)
• Original Assignee: STMicroelectronics Incorporated (STMicroelectronics NV)
• Inventors: Kang, Bo, Huo, Jianjian
• Granted Patent: US 8,665,784 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: G01R 19/22 using conversion of ac into dc
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: H04L 41/32 Specific management aspects for broadband networks
• CPC Class Codes: H04L 67/025 for remote control or remote monitoring of applications
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A wireless sensor network including a plurality of Smart Sensors coupled to a wide area network such as the Internet via a Wireless Sensor Coordinator. Each wireless sensor network comprises a plurality of Smart Sensors, each operable to measure one or more physical quantities. Each wireless sensor communicates the measured data to a Wireless Sensor Coordinator which then stores the collected data in memory. The Wireless Sensor Coordinator further includes a web server operable to post a web site on a network that is accessible by a common web browser. Upon receiving a request for sensed data via the web site, the Wireless Sensor Coordinator retrieves the appropriate measured and stored data and converts it into HTML format pages which are then posted on the web site for review by the requestor.

Claims

1. A Smart Sensor system comprising:

at least one sensor operable to measure one or more physical quantities wherein each sensor includes a wireless communication stack operable to wirelessly communicate the one or more physical quantities measured by the at least one sensor; and

a coordinator operable to receive and store the one or more physical quantities measured by the at least one sensor and responsive to receiving a request, convert the one or more physical quantities measured by the at least one sensor to a HTML web page.

2. The system of claim 1 wherein a plurality of sensors combine to form a wireless sensor network in communication with the coordinator.

3. The system of claim 2 wherein formation of the wireless sensor network is managed by the coordinator.

4. The system of claim 2 wherein each sensor within the wireless sensor network can communicate with each other sensor within the wireless sensor network.

5. The system of claim 1 wherein wireless communication between each sensor and the coordinator is multi-threaded.

6. The system of claim 1 wherein the coordinator includes a wireless communication stack operable for wireless communication with the at least one sensor.

7. The system of claim 1 wherein the coordinator includes a TCP/IP communication stack operable to interface with a network.

8. The system of claim 1 wherein the one or more physical quantities stored in the coordinator is accessible via the coordinator by a web browser.

9. The system of claim 1 further comprising a router interposed between a plurality of sensors and the coordinator wherein the router manages delivery of measured physical quantities from each of the plurality of sensors to the coordinator.

10. The system of claim 1 wherein the coordinator includes a web server with a common gateway interface function that can process common gateway interface scripts so as to dynamically access the one or more physical quantities measured by the at least one sensor.

11. A coordinator for a wireless sensor network, the coordinator comprising:

a wireless communication stack operable for communicating with one or more wireless sensors, each wireless sensor operable for measuring one or more physical quantities;

a network communication stack operable for communication between a wide area network and the coordinator;

a memory operable to store measurements of physical quantities received from the one or more wireless sensors;

a web server having a common gateway interface and operable to convert stored measurements of physical quantities from the one or more wireless sensors into HTML format.

12. The coordinator of claim 11 wherein the common gateway interface function can process common gateway interface scripts so as to dynamically access the physical quantities measured by the one or more wireless sensors.

13. The coordinator of claim 11 wherein formation of the wireless sensor network is managed by the coordinator.

14. The coordinator of claim 11 wherein the network communication stack includes TCP/IP protocols.

15. The coordinator of claim 11 wherein physical quantities stored in the memory can be accessed by a web browser via the wide area network.

16. A method for dynamically accessing wireless sensor data, the method comprising:

accessing a web site of a wireless sensor network coordinator via a web browser;

requesting a physical quantity measured by a wireless sensor, the wireless sensor being part of a wireless sensor network, the wireless sensor network and the wireless sensor being associated with the wireless sensor network coordinator;

at the Wireless Sensor Coordinator, accessing the requested physical quantity measured by the wireless sensor;

converting the physical quantity measured by the wireless sensor to a HTML format physical quantity; and

communicating the HTML format physical quantity to the web browser.

17. The method of claim 16 wherein the physical quantity measured by the wireless sensor is stored at the wireless sensor network coordinator.

18. The method of claim 16 wherein the physical quantity measured by the wireless sensor is conveyed to the wireless sensor network coordinator via a wireless sensor router interposed between each wireless sensor associated with the wireless sensor network and the wireless sensor network coordinator.

19. The method of claim 16 wherein the HTML format physical quantity is communicated to the web browser via a wide area network using TCP/IP protocols.

20. The method of claim 16 wherein converting includes processing a common gateway interface script in a web server embedded in the wireless sensor network coordinator.