How can my accounting background be used for inventory or warehouse
control purposes.

Depending on the depth of your accounting background, you would know
(or could fairly quickly learn) the principles of inventory control
and accounting methods for inventory (FIFO, LIFO), depreciation and
write-off of old stock, accounting for unfinished products.
(Decades ago, Motorola  had a large inventory of unfinished TV sets
that they knew could never be sold, and kept them on the books at
manufacturing cost value, unfinished, whereas if they had completed
them, they would have had to write them off and show the loss.)
You might look at the sponsored links that have come up on my screen. 
I haven?t, but maybe they could suggest reasons why an accounting
background is useful. In case you get different ones, here they are.

Free Inventory Analysis
Predict MRO inventory needs.
Prevent needless expenditures.
www.inventorysolutionsinc.com

Demand Planning Programme
Develop an understanding of demand
planning and forecasting.
www.cranfield.ac.uk/som/executive

Inventory Control Systems
View inventory software case study.
Databases designed to your specs
BlueClaw-DB.com

Smart Warehousing
"Better Systems, Better Service"
Web Managed Inventory & Fulfillment
smartwarehousing.com

Depends how extensive your background is.

Accounting teaches you a sense of control, paper control that is. 
What happens when inventory is not controlled?  It walks off, costing
companies (potentially) millions of dollars.

You can design paperflow systems flows that dictate operational
procedures used with respect to receiving and shipping procedures, the
handling of exceptions, damages, returns, shrinkage and the like that
properly drive and ensure integrity of the perpetual inventory system.

Without accounting controls, management is flying in the dark.

"Boss:  How much inventory do we have today?

Warehouse Manager:  Ummm.  I don't know"

Would you like to be in the Manager's shoes?