Method for detecting anomalies in a positioning system and positioning engine for a positioning system

A positioning engine for a positioning system, the positioning engine comprising being configured for:

• at least one processor;
• and
• memory interoperably coupled with the at least one processor and having tangible, non- transitory, machine-readable media storing one or more instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• -receiving, for a plurality of locator devices, respective location indicators associated with at least one mobile device;
• determining a position of the at least one mobile device based on the received location indicators;
• acquiring, for at least one of the location indicators received, a confidence indicator associated with the at least one of the location indicators;
• determining, for each acquired confidence indicator, whether a confidence criterion is met, and storing an anomaly indicator in an anomaly cache, if the confidence criterion is not met, wherein each anomaly indicator is associated with the locator device, for which the location indicator is received;
• and
• generating an anomaly alert message for at least one of the locator devices based on an evaluation of the anomaly indicators that are stored for the at least one of the locator devices.

One or more tangible, non-transitory, computer-readable media storing instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving, for a plurality of locator devices, respective location indicators associated with at least one mobile device;
• determining a position of the at least one mobile device based on the received location indicators;
• acquiring, for at least one of the received location indicators, a confidence indicator associated with the at least one of the location indicators;
• determining, for each acquired confidence indicator, whether a confidence criterion is met, and storing an anomaly indicator in an anomaly cache, if the confidence criterion is not met, wherein each anomaly indicator is associated with the locator device, for which the location indicator is received;
• and
• generating an anomaly alert message for at least one of the locator devices based on an evaluation of the anomaly indicators that are stored for the at least one of the locator devices.