OPERATING A SERVER COMPUTER
A method of operating a server computer system, which is configured to communicate with a plurality of remote devices. The remote devices are operated by lone workers who are exposed to hazardous environments. The method comprises receiving location data identifying a work location from a transmitting remote device, receiving hazard data relating to hazards in the vicinity of said work location, processing said hazard data to produce an assessment of risk, and conveying an indication of said assessment of risk to a receiving remote device.
1 . A method of operating a server computer system configured to communicate with a plurality of remote devices, in which said remote devices are operated by lone workers exposed to hazardous environments, said method comprising the steps of:
receiving location data identifying a work location from a transmitting remote device;
receiving hazard data relating to hazards in the vicinity of said work location;
processing said hazard data to produce an assessment of risk; and
conveying an indication of said assessment of risk to a receiving remote device.
2 . The method of claim 1 , wherein said transmitting remote device is a personal computer system.
3 . The method of claim 1 , wherein said location data is received as an itinerary items identifying one or more work locations to be visited over a period of time.
4 . The method of claim 3 , wherein each said itinerary item identifies an end-time, being a time at which the respective visit should have been completed.
5 . The method of claim 4 , wherein said server computer system seeks further input at a predetermined period after said end-time.
6 . The method of claim 5 , wherein said server computer system seeks said further input from the respective receiving remote device.
7 . The method of claim 5 , wherein said receiving remote device is a mobile cellular telephone.
8 . The method of claim 5 , wherein said server computer system takes escalated action if said further input is not received.
9 . The method of claim 8 , wherein a first level escalated action involves attempting to contact the lone worker again.
10 . The method of claim 8 , wherein a second level of escalated action involves attempting to contact a first co-worker.
11 . The method of claim 10 , wherein a third level of escalated action further involves attempting to contact a second co-worker.
12 . The method of claim 11 , wherein a fourth level of escalated action further involves attempting to contact a group of lone workers.
13 . The method of claim 8 , wherein a level of action is selected by the server computer system based on said calculated assessment of risk.
14 . The method of claim 1 , wherein said hazard data is read from data sources including a selection of one or more of the following, comprising: historical crime data, road traffic data and mobile telephony availability data.
15 . The method of claim 14 , wherein one or more of said hazard data includes hazard components including a selection of one or more of the following, comprising: age, severity and proximity.
16 . The method of claim 14 , wherein said proximity hazard components are determined with reference to a geo-fence quad-tree.
17 . The method of claim 1 , wherein said processing step includes:
collecting said hazard data as a plurality of hazard components;
manipulating said hazard components in combination with respective weighting values to produce weighted components; and
combining said weighted components to a produce an assessment of risk.
18 . The method of claim 15 , wherein said assessment of risk is normalised to produce said indication of risk.
19 . The method of claim 1 , wherein said indication of risk is quantised.
20 . The method of claim 19 , wherein said quantised levels of risk comprise: low, medium, high and danger.