Changing a display input channel based on a fail state determination
Illumination testing is performed to passively check the health of a display of a shared device within a physical space, such as a conference room. A test pattern is output to the display within the physical space. Using a camera within the physical space, a test image of the physical space is captured while the test pattern is output to the display. A determination is then made as to whether the display is in a fail state by comparing the test image against a reference image depicting an expected illumination of the physical space according to the test pattern. Where the device is determined to be in a fail state, a notification indicating the fail state is transmitted to an administrator device to alert an administrator associated therewith of the fail state.
1 . A method, comprising:
causing, based on a fail state of a display within a physical space, the display to change from a first input channel to a second input channel, wherein the fail state indicates that a test pattern output to the display via the second input channel is not output at the display while the display is on the first input channel;
capturing, using a camera within the physical space, a test image of the physical space while the test pattern remains output to the display via the second input channel and while the display is on the second input channel;
determining that the display is in an operational state by comparing the test image against a reference image depicting an expected illumination of the physical space according to the test pattern; and
transmitting a notification indicating the operational state to an administrator device.
2 . The method of claim 1 , comprising:
determining that the display is in the fail state by comparing a previous test image of the physical space against the reference image.
3 . The method of claim 1 , comprising:
determining that the display is in the fail state while the display is on the first input channel.
4 . The method of claim 1 , wherein the first input channel corresponds to a first set of video input capabilities for the display and the second input channel corresponds to a second set of video input capabilities for the display.
5 . The method of claim 1 , wherein transmitting the notification indicating the operational state to the administrator device comprises:
indicating, within the notification, a previous determination of the fail state and a resolution of the fail state based on the change to the second input channel.
6 . The method of claim 1 , comprising:
selecting the test pattern based on an association with the physical space.
7 . The method of claim 1 , comprising:
scheduling the outputting of the test pattern to the display for a time during which the physical space is unoccupied.
8 . The method of claim 1 , wherein determining that the display is in the operational state comprises:
comparing pixels of the test image with co-located pixels of the reference image to determine a percentage of the pixels of the test image that match respective ones of the co-located pixels of the reference image.
9 . The method of claim 1 , wherein the notification includes one or more audit images depicting the display.
10 . The method of claim 1 , wherein the physical space is a conference room and the display is a shared device display configured for use with video conferencing.
11 . A non-transitory computer readable medium storing instructions operable to cause one or more processors to perform operations comprising:
causing, based on a fail state of a display within a physical space, the display to change from a first input channel to a second input channel, wherein the fail state indicates that a test pattern output to the display via the second input channel is not output at the display while the display is on the first input channel;
capturing, using a camera within the physical space, a test image of the physical space while the test pattern remains output to the display via the second input channel and while the display is on the second input channel;
determining that the display is in an operational state by comparing the test image against a reference image depicting an expected illumination of the physical space according to the test pattern; and
transmitting a notification indicating the operational state to an administrator device.
12 . The non-transitory computer readable medium of claim 11 , wherein the display is on the first input channel when the fail state is determined.
13 . The non-transitory computer readable medium of claim 11 , wherein the notification indicates the fail state and the operational state.
14 . The non-transitory computer readable medium of claim 11 , wherein the fail state indicates that the display is incapable of video content display and the operational state indicates that the display is capable of video content display.
15 . A system, comprising:
one or more memories; and
one or more processors configured to execute instructions stored in the one or more memories to:
cause, based on a fail state of a display within a physical space, the display to change from a first input channel to a second input channel, wherein the fail state indicates that a test pattern output to the display via the second input channel is not output at the display while the display is on the first input channel;
capture, using a camera within the physical space, a test image of the physical space while the test pattern remains output to the display via the second input channel and while the display is on the second input channel;
determine that the display is in an operational state by comparing the test image against a reference image depicting an expected illumination of the physical space according to the test pattern; and
transmit a notification indicating the operational state to an administrator device.
16 . The system of claim 15 , wherein, to determine that the display is in the operational state, the one or more processors are configured to execute the instructions to:
determine that a difference between the test image and the reference image meets a threshold.
17 . The system of claim 15 , wherein the fail state is based on a comparison between a previous test image of the physical space, captured using the camera, against the reference image.
18 . The system of claim 15 , wherein the test pattern is selected based on the physical space.
19 . The system of claim 15 , wherein the test pattern is generated for use with the physical space.
20 . The system of claim 15 , wherein the display is within a field of view of the camera.