A work management system includes: an image capturing device worn by a worker; and a server device. The ASOC includes fewer lines than the store-in cache, each line of the ASOC having the first linesize stored with the checkbits. The hybrid unit includes an analog hybrid matrix. Axial movement of the injection button causes a corresponding axial movement of the piston rod until the nut engages an abutment in the housing. In the event trigger analysis, an analysis result obtained by the time trigger analysis is processed using the reader’s desired information and is outputted.