Product inventory monitoring and dispatching system and method
Technical field
The present invention relates to a kind of automatic logistics system of integrated circuit production line, be specifically related to a kind of product inventory monitoring and dispatching system.The invention still further relates to a kind of product inventory monitoring and scheduling method based on said system.
Background technology
Be general product inventory monitoring and dispatching system synoptic diagram as shown in Figure 1, comprise: host computer system, automatic logistics system (AMHS, Automatic Material Handling System) and communicating terminal system (ONLINE system).Described automatic logistics system comprise again automatic stored cabinet (STOCKER), industrial conveyance robot (as automatic navigation vehicle, i.e. AGV; Conveyance dolly etc. between engineering) and relevant control system; Described industrial conveyance robot carries out the scheduling of goods between production equipment and described automatic stored cabinet.
Because automatically stock's changes in distribution of logistics system is big and unbalanced, cause the utilization factor of the automatic stored cabinet that is used to deposit goods in the AMHS system low.Mainly containing following method aspect the raising AMHS stock of the system utilization factor at present:
1, will be for a long time need not or the not high goods of frequency of utilization shift out the AMHS system, preserve in addition;
2, increase the goods buffer memory of equipment end, as the disclosed a kind of silicon chip buffer memory equipment of U.S. Patent Publication instructions 6726429 (open day on April 27th, 2004);
3, adjust the STOKCER stock in real time, use self-balancing system and method as the disclosed a kind of material of U.S. Patent Publication instructions 7099739 (open day on April 27th, 2004).
Though said method has certain improvement to the stock of AMHS system utilization factor, also has following shortcoming:
1, can not dynamically adjust product location according to the priority of goods;
2, goods are deposited in the position that can not select automatically to be convenient to conveyance;
3, can not freely distribute the stock of automatic stored cabinet according to device class.
Summary of the invention
Technical matters to be solved by this invention provides a kind of product inventory monitoring and dispatching system, it can effectively improve the stock of AMHS system utilization factor, suppress the bottleneck (mainly being that automatic stored cabinet is completely measured) on the production line, shorten the production of articles cycle, increase production capacity.For this reason, the present invention also will provide a kind of product inventory monitoring and scheduling method based on said system.
In order to solve above technical matters, the invention provides a kind of product inventory monitoring and dispatching system, comprise host computer system, automatic logistics system and communicating terminal system, logistics system comprises automatic stored cabinet, industrial conveyance robot and relevant control system again automatically; Described industrial conveyance robot carries out the scheduling of goods between production equipment and described automatic stored cabinet; Product inventory monitoring and dispatching system of the present invention also comprises the monitoring and dispatching system of virtual automatic storage cabinet.
The present invention simultaneously also provides a kind of product inventory monitoring and scheduling method based on said system, may further comprise the steps:
(1) sets up virtual automatic storage cabinet and virtual shelf thereof;
(2) dynamically adjust the quantity and the capacity of described virtual automatic storage cabinet;
(3) set up the frame mapping relations of virtual automatic storage cabinet and the automatic stored cabinet of physics;
That (4) sets up virtual automatic storage cabinet and the automatic stored cabinet of physics goes into outbound mouth mapping relations;
(5) set up the incidence relation of virtual automatic storage cabinet and production equipment;
(6), the priority of the virtual shelf of virtual automatic storage cabinet is set according to the physical location of product equipment and the automatic stored cabinet of physics;
(7) according to the dynamic physical location of adjusting goods in the virtual automatic storage cabinet of the priority of virtual shelf;
Because the present invention sets up the automatic stored cabinet of dynamic virtual, effectively improved stock ability.Usually the AMHS system is when reaching maximum load capability, and the average inventory of automatic stored cabinet often has only 50%, and this is because that the stock of system distributes is seriously unbalanced, makes and the full stock of the automatic stored cabinet of part causes local bottleneck to cause.Adopt the present invention, calculate, the stock ability of system can be improved 60%, greatly improve the load capacity of AMHS system by 80% reasonable utilization factor.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is general product inventory monitoring and dispatching system synoptic diagram, comprise: host computer system, automatic logistics system and communicating terminal system, wherein logistics system comprises automatic stored cabinet, industrial conveyance robot (being automatic navigation vehicle in the present embodiment) and relevant control system (being the self-navigation vehicle controller in the present embodiment) again automatically, automatic navigation vehicle is subjected to the control of self-navigation vehicle controller (AGVC), carries out the scheduling of goods between production equipment and automatic stored cabinet.The present invention has increased the monitoring and dispatching system of virtual automatic storage cabinet in existing product inventory monitoring and dispatching system, the monitoring and dispatching system of this virtual automatic storage cabinet can be set up in host computer system, also can set up in automatic logistics control system.
Illustrate product inventory monitoring and scheduling method of the present invention below, mainly comprise the steps:
(1) setting up virtual automatic storage cabinet and virtual shelf thereof (frame is meant the position of placing goods in the storage cabinet) in the HOST host computer system, is the parameter (every virtual automatic storage cabinet has the table of a correspondence) of setting up virtual automatic storage cabinet as following table one.
Table one
The automatic stored cabinet title of physics |
Physics frame numbering |
The virtual shelf numbering |
Attribute |
Priority |
STOCKER?SA |
1201 |
81 |
Available |
5 |
STOCKER?SA |
1311 |
120 |
Forbidding |
3 |
STOCKER?SB |
2108 |
32 |
Available |
1 |
(2) dynamically adjust the quantity and the capacity (capacity is meant the quantity of virtual shelf in the virtual automatic storage cabinet) of described virtual automatic storage cabinet.
The quantity of virtual STOCKER and capacity can be adjusted as required at any time, for example work as the quantity of production equipment, during factors vary such as factory's production capacity.
(3) set up frame (SHELF between virtual STOCKER and the physics SOTCKER, be used to deposit the position of goods among the STOCKER) mapping relations and allocation proportion, and can adjust the data structure of the automatic stored cabinet of respective virtual in the while step of updating (1) as required at any time.Frame in all or part of frame of frame in virtual automatic storage cabinet in can the automatic stored cabinet of corresponding one or more physics, automatic stored cabinet of physics also can be distributed to one or more virtual automatic storage cabinet by a certain percentage.Concrete allocation proportion can be according to corresponding equipment quantity, and the goods processing power of equipment and plan production capacity are determined.
(4) set up the mapping relations of going into the outbound mouth between virtual automatic storage cabinet and the automatic stored cabinet of physics, these mapping relations can adopt the data structure as following table two, and can adjust at any time as required, for example when increasing new automatic stored cabinet or mobile device.
Table two
Physics STOCKER title |
Go into outbound mouth numbering |
Virtually go into outbound mouth numbering |
Attribute |
STOCKER?A |
A11 |
31 |
The warehouse-in mouth |
STOCKER?A |
A21 |
41 |
The outbound mouth |
(5) set up the incidence relation of virtual automatic storage cabinet and production equipment, this incidence relation can adopt the data structure as following table three, and can adjust at any time as required, as increasing new equipment or the automatic stored cabinet displacement of physics etc.
Table three
Virtual automatic storage cabinet title |
The associate device title |
STC16 |
STD101 |
STC16 |
PCR105 |
STC64 |
SCR108 |
(6) according to the physical location of production equipment and the automatic stored cabinet of physics, the priority of corresponding frame in the virtual automatic storage cabinet is set, so that preferentially deposit goods, and can adjust (for example when going into outbound mouth mapping relations when change between virtual automatic storage cabinet and the automatic stored cabinet of physics) as required at any time in the position that helps actual outbound.As in the table one, the big priority height of numeral, in this example because virtual automatic storage cabinet go into the outbound mouth all in physics STOCKER SA, so establish the priority of the frame among the STOCKER SA than the height among the STOCKER SB.
(7) dynamically adjust the physical location of goods in the virtual shelf, promptly automatically with the priority height, or goods that must preferential conveyance are adjusted to the frame position of being convenient to conveyance in advance.
For example according to the production schedule, the goods LS at virtual shelf 32 places in this routine table one needs preferential outbound, and virtual shelf 81 places be sky, then goods LS is transferred to virtual shelf 81 places automatically in advance
(8) when goods need to preserve in the AMHS system, earlier according to the production equipment (being about to process the equipment of these goods) of this goods correspondence and the incidence relation of virtual automatic storage cabinet and production equipment, determine the virtual automatic storage cabinet of these goods of keeping, determine the keeping frame of virtual automatic storage cabinet then according to frame priority, then, goods are put into corresponding physics frame preserve according to the frame mapping relations of definition.
When certain goods LA is kept among the physics STOCKER SB, but when needing in the future in physics STOCKEER SA outbound, according to step (7), automatically in advance goods LA is transferred to the position of being convenient to conveyance among the STOCKER SA, if the relevant position has been taken (when not having other correct position) by goods LB, and the priority of LB is lower than LA, then goods LB is transferred to other suitable positions, to place LA.
When the user called goods, that can only specify virtual automatic storage cabinet went into the outbound mouth, and system will determine and shows corresponding physical port according to the mapping relations of definition.