CN103708203A - Transport vehicle running control method based on AMHS - Google Patents
Transport vehicle running control method based on AMHS Download PDFInfo
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- CN103708203A CN103708203A CN201310739688.0A CN201310739688A CN103708203A CN 103708203 A CN103708203 A CN 103708203A CN 201310739688 A CN201310739688 A CN 201310739688A CN 103708203 A CN103708203 A CN 103708203A
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Abstract
The invention discloses a transport vehicle running control method based on an AMHS. The method includes the steps of obtaining the position of a target cabinet; calculating a total path from a current position of a transport vehicle to the position of the target cabinet in advance according to current rail traffic conditions, and dividing the total path into multiple road sections; judging whether other transport vehicles exist on the next road section during the process that the transport vehicle starts and passes each road section; if the answer is yes, continuing driving the transport vehicle to the next road section according to the total path; otherwise, calculating a total path from the current position of the transport vehicle to the position of the target cabinet again, and dividing the total path into multiple road sections according to the new calculation result; reaching the target cabinet. According to the method, the best running path can be selected timely according to situations at the time, transport efficiency is improved, and the situation that two vehicles collide with each other on a rail due to system faults and other reasons can be effectively avoided.
Description
Technical field
The present invention relates to semi-conductor integrated circuit mass transport board technical field, relate in particular to a kind of waggon travel control method based on AMHS system.
Background technology
Along with the development of semiconductor technology, 300mm silicon chip has progressively replaced 200mm silicon chip becomes main flow, and the weight of the silicon box of every box-packed year silicon chip also becomes approximately 9 kilograms by original approximately 4 kilograms.Therefore, still, by the manual conveyance of manpower, not only can lower efficiency, also have the possibility of carrying personnel personal injury.Simultaneously, quartz conductor is manufactured more and more harsh for the degree of utilization of factory building and the requirement of production cycle, automatic material transfer system (Automated Material Handling Systems is called for short AMHS) carries the importance of the tie of silicon chip also day by day to highlight as connecting between each manufacturing module.
Existing AMHS system all adopts the OHT waggon travelling on many track structures hanging on top ceiling and track, travel to and fro between (tool to tool transport model) between each board, or travel to and fro between between board and working area Stocker (between aisle in system interbay and aisle system intrabay).Between employing aisle as shown in Figure 1, the delivery system in aisle, each board 10 on every one side, board aisle is provided with silicon box stack portion 20(load port), OHT waggon 70(overhead hoist transport) can pick up the silicon box 30 in stack portion 20, and by track structure 60, be sent in the stack portion 20 of another board 10.The course of conveying of this silicon box 30 in same aisle is called system 110 in aisle, and the course of conveying of silicon box 30 between different aisle is called system 100 between aisle.In aisle, OHT waggon 70 is used in the conveying of system 110, between aisle, the conveying of system 100 is first silicon box 30 to be moved in working area 50 and temporarily stored with waggon 70, while by the time needing to use this silicon box 30, then with waggon 70 conveyances, arrive and specify board 10 places equally.
Generally speaking, in an AMHS system, have many waggons to move and execute the task simultaneously, how according to the real-time traffic situation of track, the best driving path of selecting each waggon is one of difficult problem of puzzlement technical personnel.
Summary of the invention
The object of the invention is to make up above-mentioned the deficiencies in the prior art, a kind of waggon travel control method based on AMHS system is provided.
For achieving the above object, the invention provides a kind of waggon travel control method based on AMHS system, it comprises the following steps:
Step S01, obtains target board orientation;
Step S02, according to current track traffic situation, budget waggon current location is to the total path of target board position, and this total path is decomposed into a plurality of sections;
Step S03, waggon set out and every process through a section in, judge that next section has or not other waggons; Or often behind a section, stop, judge that next section has or not other waggons;
Step S04, if nothing continues according to the total path next section of travelling; If have, recalculate waggon current location to the total path of target board position, and the total path that this is recalculated is decomposed into a plurality of sections;
Step S05, repeating step S03 and S04, finally arrive target board position.
Further, a plurality of sections that decomposite in step S02 and step S04 are straight section tracks between every two turnings in track.
Waggon travel control method based on AMHS system of the present invention, every real-time traffic situation of all considering next section through a section, can immediately select best driving path according to situation at that time, when improving conveyance efficiency, can effectively avoid occurring because the reasons such as the system failure cause the situation of car to car impact on track.
Accompanying drawing explanation
For can clearer understanding objects, features and advantages of the present invention, below with reference to accompanying drawing, preferred embodiment of the present invention is described in detail, wherein:
The schematic flow sheet of Fig. 1 waggon travel control method the first embodiment of the present invention.
The specific embodiment
The first embodiment
Refer to Fig. 1, the waggon travel control method based on AMHS system in the present embodiment, comprises the following steps:
Step S01, obtains target board orientation;
Step S02, according to current track traffic situation, budget waggon current location is to the total path of target board position, and this total path is decomposed into a plurality of sections;
Step S03, waggon set out and every process through a section in, judge that next section has or not other waggons;
Step S041, if nothing continues according to the total path next section of travelling;
Step S042, if having, recalculate waggon current location to the total path of target board position, and the total path that this is recalculated is decomposed into a plurality of sections;
Step S05, repeating step S03 and S04, arrive target board position.
Wherein, a plurality of sections that decomposite in step S02 and step S04 in the present embodiment are straight section tracks between every two turnings in track, and each section of straight section that is to say AMHS system middle orbit structure is exactly each section of section decompositing in total path.
Wherein, the budget of the present embodiment and calculating total path can be completed by the overhead control unit of AMHS system, also can be completed by the control unit in every waggon.
In other embodiments, step S03 can be, waggon is every to stop behind a section, judges that next section has or not other waggons, and the conveyance efficiency of this scheme may be lower than the first embodiment, but safety has further increased.
Claims (2)
1. the waggon travel control method based on AMHS system, is characterized in that, it comprises the following steps:
Step S01, obtains target board orientation;
Step S02, according to current track traffic situation, budget waggon current location is to the total path of target board position, and this total path is decomposed into a plurality of sections;
Step S03, waggon set out and every process through a section in, judge that next section has or not other waggons; Or often behind a section, stop, judge that next section has or not other waggons;
Step S04, if nothing continues according to the total path next section of travelling; If have, recalculate waggon current location to the total path of target board position, and the total path that this is recalculated is decomposed into a plurality of sections;
Step S05, repeating step S03 and S04, finally arrive target board position.
2. the waggon travel control method based on AMHS system according to claim 1, is characterized in that: a plurality of sections that decomposite in step S02 and step S04 are straight section tracks between every two turnings in track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739688.0A CN103708203A (en) | 2013-12-27 | 2013-12-27 | Transport vehicle running control method based on AMHS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739688.0A CN103708203A (en) | 2013-12-27 | 2013-12-27 | Transport vehicle running control method based on AMHS |
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| Publication Number | Publication Date |
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| CN103708203A true CN103708203A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310739688.0A Pending CN103708203A (en) | 2013-12-27 | 2013-12-27 | Transport vehicle running control method based on AMHS |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403743A (en) * | 2016-05-20 | 2017-11-28 | 中芯国际集成电路制造(上海)有限公司 | Calculate the system and method for the storage box transport distance |
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2013
- 2013-12-27 CN CN201310739688.0A patent/CN103708203A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403743A (en) * | 2016-05-20 | 2017-11-28 | 中芯国际集成电路制造(上海)有限公司 | Calculate the system and method for the storage box transport distance |
| CN107403743B (en) * | 2016-05-20 | 2019-12-27 | 中芯国际集成电路制造(上海)有限公司 | System and method for calculating storage box carrying distance |
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Application publication date: 20140409 |