Auto Restart Miner if Hash Rate Drops

[willids]

Sorry if this has been asked before but I have a miner which is connected via a network cable (so computer does not need to be on), is there any programs out there which can restart the miner if the hash rate drops (it is running CGMiner). The Hash rate has dropped a couple of time during the night whilst I am in bed and is off-line for about 30-40mins if not longer sometimes.

Thanks