B. Software system
Bar Code recognition system in ammeter image mainly
consists of three modules that are image input module, bar
code recognition module and data process module. The
function of the first module is that obtain the image data from
the external environment like camera. The software which
designed in the first module can work in two modes: one is file
model which can obtain image data from the image with the
format of jpg that read from the storage device with the style of
file. The other is on-scene model, which is that image read
from the camera, then saved with some regulations after
processed. Bar code recognition model is the key of entire
system, as analyzed in detail before this section, which decode
the bar code in the way of image process .The function of Data
process module is that process the image data which obtain
from the decoded bar code. The Data process mentioned in the
context mainly include data check, data match and data save,
data check is that simply checked the recognition result with
manpower, we should modify the data or input again (some
electric meter image which is so blur that can’t recognition).
Data match is that history records information which obtains
from the database storage. Recognition result can be also used
to dial plate data process. Data save refer to the content which
obtain from the information after recognizing saved in a
database file with the format of DBF. The system of this paper
transfer information with utility is based on the database file.
The frame diagram of total system is showed as figure 2.