Method and system for service verification using WiFi signal strength mapping
A service management system facilitates and validates service on building management systems. A service workflow module receives device events from control panels of the building management systems and combines them with local service data from mobile computing devices of technicians performing the service, generating service events. The service workflow module receives ambient radiofrequency (RF) signal data detected from the location of serviced devices. A validation module stores the ambient RF signal data and generates and a device fingerprint based on the ambient RF signal data. After device fingerprints based on the ambient RF signal data have been accumulated, the validation module determines whether current service events and ambient RF signal data are coherent with the device fingerprints and previous ambient RF signal data. The service workflow module also infers the location of the technician based on the ambient RF signal data and sends navigation information to the mobile computing device.
1. A service management system for facilitating testing of a building management system, comprising:
a service workflow module for receiving device events from the building management system and local service data from mobile computing devices and generating service events;
a mobile computing device interface for receiving ambient radiofrequency signal data from the mobile computing devices; and
a validation module for analyzing the service events from the service workflow module and the ambient radiofrequency signal data to validate service on the building management system, wherein the validation module determines whether ambient radiofrequency signal data detected during the service is coherent with previously detected ambient radiofrequency signal data by comparing source identifiers for radio frequency signals and signal strength of those radio frequency signals.
2. The system as claimed in claim 1 , wherein the validation module stores the ambient radiofrequency signal data from the mobile computing devices.
3. The system as claimed in claim 1 , wherein the ambient radiofrequency signal data includes data from detected WiFi signals.
4. The system as claimed in claim 1 , wherein the ambient radiofrequency signal data includes data from detected global navigation satellite system signals.
5. The system as claimed in claim 1 , wherein the ambient radiofrequency signal data includes data from detected Bluetooth signals.
6. The system as claimed in claim 1 , wherein the workflow module generates inferred locations of the mobile computing devices based on the ambient radiofrequency signal data received from the mobile computing devices.
7. The system as claimed in claim 6 , wherein the workflow module sends alerts to the mobile computing devices based on the inferred locations.
8. The system as claimed in claim 6 , wherein the workflow module sends navigation information to the mobile computing devices based on the inferred locations.
9. A method for facilitating testing of a building management system, comprising:
receiving device events from the building management system and local service data from mobile computing devices, and generating service events; and
receiving ambient radiofrequency signal data from the mobile computing devices and analyzing the service events and the ambient radio frequency signal data to validate service on the building management system; and
validating the service on the building management system by determining whether ambient radiofrequency signal data detected during the service is coherent with previously detected ambient radiofrequency signal data by comparing source identifiers for radio frequency signals and signal strength of those radio frequency signals.
10. The method as claimed in claim 9 , further comprising storing the ambient radiofrequency signal data from the mobile computing devices.
11. The method as claimed in claim 9 , wherein the ambient radiofrequency signal data includes data from detected WiFi signals.
12. The method as claimed in claim 9 , wherein the ambient radiofrequency signal data includes data from detected global navigation satellite system signals.
13. The method as claimed in claim 9 , wherein the ambient radiofrequency signal data includes data from detected Bluetooth signals.
14. The method as claimed in claim 9 , further comprising generating inferred locations of the mobile computing devices based on the ambient radiofrequency signal data received from the mobile computing devices.
15. The method as claimed in claim 14 , further comprising sending alerts to the mobile computing devices based on the inferred locations.
16. The method as claimed in claim 14 , further comprising sending navigation information to the mobile computing devices based on the inferred locations.