Abstract
Medical wireless telemeter is device that monitor patient biometric information using radio waves. For trouble-free use of medical wireless telemeter, it is important to manage the radio wave environment to ensure that there is no electromagnetic interference and that radio waves are received with sufficient strength. Generally, measurement and evaluation of the radio wave environment is done by measuring the received voltage using the simple spectrum analyzer function installed in the central monitor. The central monitor does not have a function to output the received voltage as a numerical value, and the investigator visually reads the received voltage from the graph displayed on the central monitor's display. On the other hand, there are a total of 480 channels available on the medical wireless telemeter. Visually reading and recording the received voltage of all channels is very labor intensive and has a large visual reading error. Therefore, we considered a method to obtain the received voltage of each channel by outputting the simple spectrum analyzer screen displayed on the display from the DVI terminal of the central monitor and analyzing the image.
