We are in an age where the proliferation of sensors to collect data for analytics is becoming common-place. However there needs to be more caution in completely trusting the result of the data collected, eg. sensors can malfunction, there may be software errors, unprotected endpoints can be hacked etc.
The error resulted from a faulty sensor over the main entrance that was initially detected in the spring of last year, a museum representative said. At that time, an engineer was sent to repair the device, but the device later failed a routine accuracy test in July last year.