marius
Member
- Join Date
- Apr 2005
- Posts
- 239
well... i have an following idea:
I think many people here are using digital data gathering in some particular implementation ... it can be cheap or solid, battery backup error-proof solution ... but sometimes you still need to perform service intervention which will surely corrupt data in some way ... for example on following temperature trend are many blank spaces (in the middle) visible on every curve and three vertical lines ... this is an temperature trend from pc-based recording system ... lines indicate restarts of the machine and spaces indicate that termoclouple disconnection which i was forced to perform manually on analog unit ...
http://www.alteruter.net/temp/plcs.net/cx/cx_blank_data_spaces.jpg
I don't like these corrupts. Customers don't like corrupts in their nice graphical trends. But there is no way to avoid them.
What i have in mind ... is (quite simple) program with graphical interface, which will allow you to fill missing spaces using mouse to draw it directly into graphical trend.
I can surely handle that. At least, until somebody knows about something already existing.
Would be anybody interested in win32 tool for this purpose?
(if i will make it - it will be freeware solution)
Database format i'm using is always typical dbf/odbc where one column mean one curve and every record is signed with date and time of various period. Values can be int/float signed/unsigned. Here's lookup of file:
http://www.alteruter.net/temp/plcs.net/cx/db_data_lookup.jpg
I myself prefer simple DBF3/4 files, where every day is saved as single file, named as particular file mask including date ... like "klm1 (20050825 0000).dbf" - it's just years long custom and allows me easy data use in many applications.
I think many people here are using digital data gathering in some particular implementation ... it can be cheap or solid, battery backup error-proof solution ... but sometimes you still need to perform service intervention which will surely corrupt data in some way ... for example on following temperature trend are many blank spaces (in the middle) visible on every curve and three vertical lines ... this is an temperature trend from pc-based recording system ... lines indicate restarts of the machine and spaces indicate that termoclouple disconnection which i was forced to perform manually on analog unit ...
http://www.alteruter.net/temp/plcs.net/cx/cx_blank_data_spaces.jpg
I don't like these corrupts. Customers don't like corrupts in their nice graphical trends. But there is no way to avoid them.
What i have in mind ... is (quite simple) program with graphical interface, which will allow you to fill missing spaces using mouse to draw it directly into graphical trend.
I can surely handle that. At least, until somebody knows about something already existing.
Would be anybody interested in win32 tool for this purpose?
(if i will make it - it will be freeware solution)
Database format i'm using is always typical dbf/odbc where one column mean one curve and every record is signed with date and time of various period. Values can be int/float signed/unsigned. Here's lookup of file:
http://www.alteruter.net/temp/plcs.net/cx/db_data_lookup.jpg
I myself prefer simple DBF3/4 files, where every day is saved as single file, named as particular file mask including date ... like "klm1 (20050825 0000).dbf" - it's just years long custom and allows me easy data use in many applications.