simulation of inventory system

{"cid":"91218829","title":"Inventory Enhanced Simulation Software Emulator SFR1M44-U100K USB Disk Drive Industrial Control Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/51\/03\/91432fd9f41fcec98888e6cafa1e-200x200-1.jpg","attrs":{"Price":"$14.30\/pieces >=10 pieces","Brand Name":"ALL","Minimum Order Quantity":"10 pieces","Manufacturer Part Number":"SFR1M44-U100K","Type":"integrated circuit","Place of Origin":"Guangdong, China","Description":"Stabilizer ic chip","Voltage - Breakdown":"V","Frequency - Switching":"HZ","Power (Watts)":"W","Operating Temperature":"C","Mounting Type":"standard","Voltage - Supply (Min)":"V","Voltage - Supply (Max)":"V","Voltage - Output":"V","Current - Output \/ Channel":"A","Frequency":"HZ","Applications":"integrated circuit","FET Type":"\/","Current - Output (Max)":"a","Current - Supply":"a","Voltage - Supply":"v","Frequency - Max":"hz","Power - Max":"w","Tolerance":"\/","Function":"\/","Voltage Supply - Internal":"v","Frequency - Cutoff or Center":"hz","Current - Leakage (IS(off)) (Max)":"a","Isolated Power":"\/","Voltage - Isolation":"v","Current - Output High, Low":"a","Current - Peak Output":"a","Voltage - Forward (Vf) (Typ)":"v","Current - DC Forward (If) (Max)":"a","Input Type":"\/","Output Type":"\/","Current Transfer Ratio (Min)":"\/","Current Transfer Ratio (Max)":"\/","Voltage - Output (Max)":"\/","Voltage - Off State":"\/","Static dV\/dt (Min)":"\/","Current - LED Trigger (Ift) (Max)":"\/","Current - On State (It (RMS)) (Max)":"\/","Impedance":"\/","Impedance - Unbalanced\/Balanced":"\/","LO Frequency":"\/","RF Frequency":"\/","Input Range":"\/","Output Power":"\/","Frequency Bands (Low \/ High)":"\/","Specifications":"\/","Size \/ Dimension":"\/","Modulation or Protocol":"\/","Interface":"\/","Power - Output":"\/","Memory Size":"\/","Protocol":"\/","Modulation":"\/","Serial Interfaces":"\/","GPIO":"\/","Utilized IC \/ Part":"\/","Standards":"\/","Style":"\/","Memory Type":"\/","Writable Memory":"\/","Resistance (Ohms)":"\/","Cross Reference":"\/","Lead time":"1-3 Working Days","Shipping by":"DHL\\UPS\\Fedex\\EMS\\HK Post","MOQ":"50 PCS","Payment":"Paypal\\TT\\Western Union\\Trade Assurance","Warranty":"90-180Days","Condition":"Brand Newand Original","Sample":"Supplied","Packaging Details":"protective package","Port":"Shenzhen\/Shanghai\/HongKong","Supply Ability":"60000 Piece\/Pieces per Day"}}