WO2019211933A1 - 搬送システム - Google Patents
搬送システム Download PDFInfo
- Publication number
- WO2019211933A1 WO2019211933A1 PCT/JP2019/003247 JP2019003247W WO2019211933A1 WO 2019211933 A1 WO2019211933 A1 WO 2019211933A1 JP 2019003247 W JP2019003247 W JP 2019003247W WO 2019211933 A1 WO2019211933 A1 WO 2019211933A1
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- WIPO (PCT)
- Prior art keywords
- track
- branch
- transport
- transport vehicle
- main
- Prior art date
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- 238000012384 transportation and delivery Methods 0.000 claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 29
- 238000013459 approach Methods 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 11
- 230000032258 transport Effects 0.000 description 251
- 238000004891 communication Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 240000001973 Ficus microcarpa Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
- B65G1/0492—Storage devices mechanical with cars adapted to travel in storage aisles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67276—Production flow monitoring, e.g. for increasing throughput
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
- B65G1/0457—Storage devices mechanical with suspended load carriers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0212—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
- G05D1/0225—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory involving docking at a fixed facility, e.g. base station or loading bay
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0227—Control of position or course in two dimensions specially adapted to land vehicles using mechanical sensing means, e.g. for sensing treated area
- G05D1/0229—Control of position or course in two dimensions specially adapted to land vehicles using mechanical sensing means, e.g. for sensing treated area in combination with fixed guiding means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0287—Control of position or course in two dimensions specially adapted to land vehicles involving a plurality of land vehicles, e.g. fleet or convoy travelling
- G05D1/0289—Control of position or course in two dimensions specially adapted to land vehicles involving a plurality of land vehicles, e.g. fleet or convoy travelling with means for avoiding collisions between vehicles
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- G—PHYSICS
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0287—Control of position or course in two dimensions specially adapted to land vehicles involving a plurality of land vehicles, e.g. fleet or convoy travelling
- G05D1/0291—Fleet control
- G05D1/0297—Fleet control by controlling means in a control room
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/60—Intended control result
- G05D1/69—Coordinated control of the position or course of two or more vehicles
- G05D1/693—Coordinated control of the position or course of two or more vehicles for avoiding collisions between vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67706—Mechanical details, e.g. roller, belt
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67715—Changing the direction of the conveying path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67724—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations by means of a cart or a vehicule
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67733—Overhead conveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0297—Wafer cassette
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
- B65G47/60—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices to or from conveyors of the suspended, e.g. trolley, type
- B65G47/61—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices to or from conveyors of the suspended, e.g. trolley, type for articles
Definitions
- One aspect of the present invention relates to a transport system.
- Patent Document 1 describes a system that assigns a conveyance command to a traveling vehicle (conveyance vehicle) from a controller and conveys and delivers an article (load).
- One aspect of the present invention has been made in view of the above circumstances, and an object thereof is to provide a transport system capable of improving the load transport efficiency.
- a transport system is a transport system including a plurality of transport vehicles that travel along a track and transport a load, and a controller that controls the travel of the plurality of transport vehicles. Includes a first main track, a plurality of merging points that are arranged apart from each other on the first main track, and a plurality of branch tracks that are respectively connected to the first main track via different merging points. Each of the merging points is separated from each other in the first main track, and each of the plurality of branch track has a stop position corresponding to a delivery port for delivering a load to the transport vehicle. For each transport vehicle that has stopped at the stop position corresponding to each delivery port of the branch track, start the transport vehicle on the downstream branch track at the same time as or earlier than the transport vehicle on the upstream branch track. Let
- This transport system has a plurality of branch tracks that have stop positions corresponding to the delivery ports, and these branch tracks join the first main track. Thereby, when delivering a load, a plurality of transport vehicles can be distributed.
- the start timing in the transport vehicle on the downstream branch track is set at the same time as or earlier than the start timing in the transport vehicle on the upstream branch track. Thereby, it can be made to approach a 1st main track
- the controller for each transport vehicle that arrives at a stop position corresponding to each delivery port of the plurality of branch track, at different timing, starts the transport vehicle that arrives first. You may make it wait until the arrival conveyance vehicle arrives. Accordingly, it is possible to reliably create a situation in which the transport vehicles are simultaneously stopped at the stop positions of the plurality of branch track. It is possible to facilitate the above-described control in which the start timing of the downstream branch line track transport vehicle is the same as or earlier than the start timing of the upstream branch track transport vehicle.
- the track further includes a second main track and a plurality of branch points that are arranged apart from each other on the second main track, and each of the plurality of branch tracks.
- the controller sequentially enters each of the plurality of transport vehicles traveling on the second main track in order from the downstream side to the upstream side of each of the plurality of branch line tracks.
- the approach control to be performed may be executed. Thereby, a conveyance vehicle can be distributed to a branch line track so that each conveyance vehicle may arrive at each stop position of a plurality of branch line tracks at the same timing.
- the controller may execute the approach control for each transport vehicle group including a number of transport vehicles corresponding to the number of branch line tracks.
- approach control can be executed with relatively simple logic.
- the controller may determine a delivery port of a transport destination for a transport vehicle that travels in a specific section upstream from each branch point on the second main track.
- the delivery port of the transport destination is determined for the transport vehicle traveling on the specific section of the second main track. Therefore, even if the situation occurs, the delivery port of the transport destination is determined accordingly. It becomes easy to do. It is possible to suppress the platoon of the plurality of transport vehicles from being disturbed, and it is possible to improve the load transport efficiency.
- the controller starts at a timing that is repeated at a certain period for each of the plurality of branch tracks for each transport vehicle stopped at a stop position corresponding to each delivery port of the plurality of branch tracks. You may let them. As a result, even if the transported vehicles are not loaded, they start when the timing comes. It is possible to give priority to the traveling of a plurality of transport vehicles, and in turn, to give priority to an increase in the number of deliveries of the load during the system operation period. As a result, it is possible to improve the load conveyance efficiency.
- the track includes a circular track that causes the plurality of transport vehicles to circulate, and the controller places the plurality of transport vehicles in the circular track so that the circular distance or the circular time is the same. You may run along. Thereby, it can suppress that the row
- FIG. 1 is a schematic plan view showing a transport system according to an embodiment.
- FIG. 2 is a side view showing the transport vehicle of the transport system according to the embodiment.
- FIG. 3 is a schematic plan view showing the first building side of the transport system according to the embodiment.
- FIG. 4 is a schematic plan view showing the second building side of the transport system according to the embodiment.
- Fig.5 (a) is a schematic plan view which expands and shows the 1st building side of the track
- FIG. 5B is an enlarged schematic plan view showing the second building side of the track of the transport system according to the embodiment.
- FIG. 6A is a schematic plan view illustrating an operation example of the transport system according to the embodiment.
- FIG. 6B is a schematic plan view showing a continuation of FIG. Fig.7 (a) is a schematic plan view which shows the continuation of FIG.7 (b).
- FIG. 7B is a schematic plan view showing a continuation of FIG.
- FIG. 8A is a schematic plan view showing a continuation of FIG. 7B.
- FIG. 8B is a schematic plan view showing the continuation of FIG.
- FIG. 9A is a schematic plan view showing the continuation of FIG.
- FIG. 9B is a schematic plan view showing a continuation of FIG.
- FIG. 10A is a schematic plan view showing a continuation of FIG. 9B.
- FIG. 10B is a schematic plan view showing a continuation of FIG.
- FIG. 11 is a schematic plan view showing a continuation of FIG.
- FIG. 12A is a schematic plan view illustrating an operation example when the loading operation in the transport system according to the embodiment cannot be completed.
- FIG. 12B is a schematic plan view showing the continuation of FIG.
- the transport system 1 is a system that performs transport between two points in which a transport source and a transport destination are patterned.
- the transfer system 1 performs inter-building transfer for delivering the load L between the first building F1 and the second building F2.
- the load L is, for example, a container that stores a plurality of semiconductor wafers, but may be a glass substrate, a general component, or the like.
- the transport system 1 includes a plurality of transport vehicles 10 and a controller 20.
- the transport vehicle 10 travels along the track 3 and transports the load L.
- the transport vehicle 10 is configured to be able to transfer the load L.
- the transport vehicle 10 is an overhead traveling unmanned transport vehicle.
- the conveyance vehicle 10 is also referred to as, for example, a carriage (conveyance carriage), an overhead traveling vehicle (overhead traveling carriage), or a traveling vehicle (traveling carriage).
- the number of transport vehicles 10 included in the transport system 1 is, for example, about 50 and varies depending on the transport request amount and the transport distance.
- the transport vehicle 10 feeds the traveling carriage 144, the power supply carriage 145 that receives power from the track 3, the ⁇ drive 147, and the lower portion thereof to the track 3.
- the transverse feed portion 146 is provided.
- the ⁇ drive 147 controls the posture of the load L by turning the elevating drive unit 148 in a horizontal plane.
- the elevating drive unit 148 moves the elevating table 149 that holds the load L up and down, and delivers the load L to and from the delivery port 4.
- the lifting platform 149 chucks at the flange 124 at the top of the load L. Note that the lateral feed unit 146 and the ⁇ drive 147 need not be provided.
- the track 3 is laid on the ceiling, for example.
- the track 3 is supported by the column 141.
- the track 3 is a predetermined travel path for causing the transport vehicle 10 to travel.
- the track 3 is a one-way traveling path.
- the traveling direction (forward direction) of the transport vehicle 10 on the track 3 is set to one direction, and traveling in the reverse direction is prohibited.
- the track 3 has a closed track layout that has no influence from outside the track 3.
- the terms “upstream” and “downstream” correspond to “upstream” and “downstream” in the traveling direction of the transport vehicle 10, respectively.
- the track 3 includes a first main track 31, a second main track 32, and four first branch tracks (dividing from the second main track 32 and joining the first main track 31 ( Branch lines) 33a, 33b, 33c, 33d, and four second branch lines 34a, 34b, 34c, 34d branched from the first main track 31 and joining the second main track 32.
- the first main track 31 and the second main track 32 are tracks straddling between the first building F1 and the second building F2.
- the lengths of the first main track 31 and the second main track 32 are, for example, 200 m.
- the first main track 31 and the second main track 32 are enclosed and closed by a wall (not shown).
- the first branch tracks 33a to 33d are arranged in the first building F1.
- the first branch track 33a-33d extends linearly in parallel.
- the first branch tracks 33a to 33d are provided in a comb shape between the first main track 31 and the second main track 32 extending in parallel.
- the first branch tracks 33a to 33d are positioned upstream of the first main track 31 (downstream of the second main track 32) in this order.
- the second branch track 34a to 34d is arranged in the second building F2.
- the second branch track 34a to 34d extends linearly in parallel.
- the second branch track 34a to 34d are provided in a comb shape between the first main track 31 and the second main track 32 extending in parallel.
- the second branch tracks 34a to 34d are positioned upstream of the second main track 32 (upstream of the first main track 31) in this order.
- the locations where the first branch track 33a to 33d merge with the first main track 31 are merge points 35a, 35b, 35c, and 35d.
- Each of the first branch track 33a to 33d is connected to the first main track 31 through each of junctions 35a, 35b, 35c, and 35d.
- the track 3 has a plurality of junction points 35a to 35d that are a plurality of junction points that are arranged apart from each other on the first main track 31.
- the first branch tracks 33a to 33d are connected to the first main track 31 via merging points 35a to 35d that are different from each other.
- the junctions 35a to 35d are separated from each other on the first main track 31 by a predetermined distance.
- the locations where the first branch tracks 33a to 33d branch from the second main track 32 are branch points 36a, 36b, 36c, and 36d.
- Each of the first branch track 33a to 33d is connected to the second main track 32 via each of branch points 36a, 36b, 36c, 36d. That is, the track 3 has branch points 36a to 36d, which are a plurality of branch points arranged on the second main track 32 so as to be separated from each other.
- the first branch tracks 33a to 33d are connected to the second main track 32 via mutually different branch points 36a to 36d.
- the branch points 36a to 36d are separated from each other on the second main track 32 by a predetermined distance.
- a confluence is a point where a branch track is connected to the main track.
- the “confluence” is a point from the branch track to the main track.
- “Merging points” are these connection points for entering the main track from the branch track.
- the “branch point” is a portion where the main track is connected to the branch track.
- a “branch point” is a point from the main track to the branch track.
- “Merging points” are these connection points for entering the branch track from the main track.
- the locations where the second branch track 34a to 34d merge with the second main track 32 are merge points 37a, 37b, 37c, 37d.
- Each of the second branch track 34a to 34d is connected to the second main track 32 through each of junctions 37a, 37b, 37c, 37d.
- the track 3 has a plurality of junction points 37a to 37d that are a plurality of junction points that are arranged apart from each other on the second main track 32.
- the second branch track 34a to 34d are connected to the second main track 32 via different junction points 37a to 37d.
- the junctions 37a to 37d are separated from each other by a predetermined distance on the second main track 32.
- the locations where the second branch track 34a-34d branches from the first main track 31 are branch points 38a, 38b, 38c, 38d.
- Each of the second branch track 34a to 34d is connected to the first main track 31 via each of branch points 38a, 38b, 38c, 38d. That is, the track 3 has branch points 38a to 38d that are a plurality of branch points arranged on the first main track 31 apart from each other.
- the second branch track 34a to 34d are connected to the first main track 31 via different branch points 38a to 38d, respectively.
- the branch points 38a to 38d are separated from each other on the first main track 31 by a predetermined distance.
- the first main track 31, the second main track 32, the first branch tracks 33a to 33d, and the second branch tracks 34a to 34d constitute a circular track that makes the plurality of transport vehicles 10 circulate.
- the track 3 includes, for example, a standby track W that waits for a failed transport vehicle 10 or a standby transport vehicle 10.
- the track 3 includes a short-circuit track S that directly connects the first main track 31 and the second main track 32.
- the delivery vehicle 10 delivers the load L to each of the first branch track 33a to 33d and each of the second branch track 34a to 34d.
- the delivery port 4 has an unloading port 41 and a loading port 42.
- the delivery port 4 is provided on the conveyor C that conveys the load L.
- the conveyor C is disposed below the track 3.
- the conveyor C is continuous so as to pass through each delivery port 4 of the first branch track 33a to 33d.
- the conveyor C includes a conveyor 43 and a conveyor 44.
- the unloading port 41 is a port for unloading the load L from the transport vehicle 10. At the unloading port 41, the load L is carried out after the load L is placed and before the subsequent transport vehicle 10 arrives.
- the unloading port 41 is arranged at a predetermined interval on the upstream side of the loading port 42. In other words, the loading port 42 is arranged at a predetermined interval on the downstream side of the unloading port 41.
- the unloading port 41 is provided on the conveyor 43.
- the conveyor 43 conveys the load L unloaded at the unloading port 41 to, for example, an automatic warehouse (not shown).
- the loading port 42 is a port for loading the load L into the transport vehicle 10.
- the loading port 42 can carry the load L into the port in a span in which the plurality of transport vehicles 10 arrive continuously.
- the unloading port 41 is provided on the conveyor 44.
- the conveyor 44 conveys the load L to be loaded at the loading port 42 from, for example, an automatic warehouse (not shown).
- the delivery port 4 may be arranged so as to be shifted from the transport surface of the conveyor C to the upstream side or the downstream side in the transport direction of the transport vehicle 10 so as not to stop the transport of the load L by the conveyor C.
- the unloading port 41 and the loading port 42 are not particularly limited, and various known ports can be employed.
- the conveyors 43 and 44 are not particularly limited in specification, mechanism or configuration, and various known conveyors can be employed.
- the controller 20 is an electronic control unit including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
- the controller 20 can be configured as software that is loaded into the RAM and executed by the CPU while a program stored in the ROM is loaded.
- the controller 20 may be configured as hardware such as an electronic circuit.
- the controller 20 communicates with the plurality of transport vehicles 10 to control traveling of the plurality of transport vehicles 10.
- the controller 20 is configured for each transport vehicle 10 that is stopped at a stop position corresponding to the delivery port 4 of each of the first branch track 33a to 33d (here, a stop position corresponding to the loading port 42; the same applies hereinafter). The following start control is executed.
- the transport vehicle 10 that is stopped on the downstream first branch track of the first branch tracks 33a to 33d is simultaneously with or ahead of the transport vehicle 10 that is stopped on the upstream first branch track.
- the “downstream first branch track” and the “upstream first branch track” mean that one of the two first branch tracks 33a to 33d is the former on the downstream side and the other on the upstream side. The latter.
- the transport vehicle 10 stopped on the first branch track 33d is started at the same time as or earlier than the transport vehicle 10 stopped on the first branch track 33c.
- the transport vehicle 10 stopped on the first branch track 33c is started simultaneously with or before the transport vehicle 10 stopped on the first branch track 33b.
- the transport vehicle 10 stopped on the first branch track 33b is started at the same time or earlier than the transport vehicle 10 stopped on the first branch track 33a.
- the start for each transported vehicle 10 that has stopped, the start (regardless of whether or not the load L is loaded) at a timing that is repeated at a fixed period for each of the first branch track 33a to 33d ( Forced start).
- the countdown is started from the reference pitch time by the pitch timer in each of the first branch track 33a to 33d.
- the reference pitch time may be a predetermined fixed value or a variable value.
- the time axes of the pitch timers of the first branch track 33a to 33d are shifted so as to start from the transport vehicle 10 that is stopped on the downstream first branch track.
- a time limit may be provided for allocation of the load L to each transport vehicle 10 that is stopped at the stop position corresponding to each loading port 42.
- the controller 20 For each transport vehicle 10 that arrives at a stop position corresponding to the delivery port 4 of each of the first branch tracks 33a to 33d at different timings, the controller 20 starts the transport vehicle 10 that arrives first, and the transport vehicle 10 that arrives later Execute standby control to wait until the arrival.
- the above-described reference pitch time for the start control is set to a length that allows the transport vehicle 10 to stop simultaneously on all of the first branch track 33a to 33d, so that the transport that arrives earlier is set.
- the start of the vehicle 10 is made to wait until the transport vehicle 10 that arrives later arrives.
- the controller 20 executes an entry control in which each of the plurality of transport vehicles 10 traveling on the second main track 32 sequentially enters the first branch track 33a to 33d in order from the downstream side to the upstream side. Specifically, in the approach control, the transport vehicle 10 enters the first branch track 33a, the next transport vehicle 10 enters the first branch track 33b, and the next transport vehicle 10 enters the first branch track 33c. Then, the next transport vehicle 10 is caused to enter the first branch track 33d, and then such approach of the transport vehicle 10 is repeated.
- transport destination determination control for determining (guides) the transport destination is performed for the transport vehicle 10 traveling in the specific section R upstream of the branch points 36a to 36d in the second main track 32.
- the specific section R is a straight section close to the branch points 36a to 36d.
- the specific section R is not particularly limited as long as it is upstream of the branch points 36a to 36d.
- the transfer port 4 of the transfer destination in the received transfer command (here, one of the unloading ports 41 of the first branch tracks 33a to 33d) is determined.
- the received transport command is a command received when the load L is allocated at the loading port 42 of the second branch track 34a to 34d, and includes at least a command to drive the transport vehicle 10 to the specific section R. .
- the controller 20 executes the virtual connection control for performing the above-described start control, standby control and entry control for each transport vehicle group including the four transport vehicles 10 corresponding to the number of the first branch track 33a to 33d.
- the controller 20 also performs the same control as the above control on the transport vehicle 10 entering and leaving the second branch track 34a to 34d shown in FIG.
- the transport destination determination control and the virtual connection control are executed.
- the controller 20 moves the plurality of transport vehicles 10 around the orbits (first main trajectory 31, second main trajectory 32, first trajectory so that the rounding distance or rounding time is the same. It runs along the branch line tracks 33a to 33d and the second branch line tracks 34a to 34d). Specifically, in the approach control, the controller 20 causes the transport vehicle 10 that has entered the first branch track 33d to enter the second branch track 34a, and the transport vehicle 10 that has entered the first branch track 33c is the second. The transport vehicle 10 that has entered the branch track 34b, entered the first branch track 33b, enters the second branch track 34c, and the transport vehicle 10 entered the first branch track 33a enters the second branch track 34d. .
- the transport vehicle 10 that has entered the second branch track 34d enters the first branch track 33a
- the transport vehicle 10 that has entered the second branch track 34c enters the first branch track 33b
- the transport vehicle 10 that has entered the second branch track 34b enters the first branch track 33c
- the transport vehicle 10 that has entered the second branch track 34a enters the first branch track 33d.
- traveling of the transport vehicle 10 on the first building F1 side of the track 3 will be described, and description of traveling of the transport vehicle 10 on the second building F2 side will be omitted.
- a transport vehicle group including four transport vehicles 10a to 10d is shown, and the other transport vehicles 10 are omitted.
- the transport vehicle 10 on which the load L overlaps indicates a state in which the load L is loaded.
- the transport vehicle 10 on which the load L is not overlapped indicates an empty state in which the load L is not loaded.
- the transport vehicle 10 painted in light color indicates a state in which a transport command is assigned.
- the transport vehicles 10a to 10d travel on the track 3 in this order.
- the transport vehicle 10a traveling on the second main track 32 is caused to enter the first branch track 33a by the approach control.
- the transport vehicle 10a performs transport destination determination control while traveling in the specific section R, and determines the transport destination as the unloading port 41 of the first branch track 33a.
- the transport vehicle 10a travels toward the determined transport destination, and the transport vehicle 10a enters the first branch track 33a.
- the transport vehicles 10b to 10d traveling on the second main track 32 are made to enter the first branch tracks 33b to 33d in this order by the approach control.
- each of the transport vehicles 10a to 10d is stopped in order at stop positions corresponding to the respective unloading ports 41 of the first branch track 33a to 33d.
- the loads L of the transport vehicles 10a to 10d are unloaded to the respective unloading ports 41.
- the transport vehicles 10a to 10d are sequentially moved to the loading ports 42, and the transport vehicles 10a to 10d are stopped at the stop positions corresponding to the loading ports 42 in order.
- the movement from the unloading port 41 to the loading port 42 can be realized by known general traveling control. For example, when the transport vehicle 10 that is a preceding vehicle of the transport vehicle 10a and stops at the loading position of the loading port 42 starts, the transport vehicle 10a is moved accordingly.
- the load L is assigned to each of the transport vehicles 10a to 10d stopped at the stop position corresponding to each loading port 42.
- a transport command including a command to run the transport vehicle 10 to the specific section R (see FIG. 4) on the second building F2 side is assigned.
- the allocated load L is loaded on each of the stopped transport vehicles 10a to 10d.
- the transport vehicle 10d stopped on the first branch track 33d starts before the transport vehicle 10c stopped on the first branch track 33c.
- the transport vehicle 10c stopped on the first branch track 33c starts before the transport vehicle 10b stopped on the first branch track 33b.
- the transport vehicle 10b stopped on the first branch track 33b starts before the transport vehicle 10a stopped on the first branch track 33a.
- the transport vehicle 10a stopped on the first branch track 33a is started after the transport vehicles 10b to 10d start.
- the countdown from the reference pitch time to 0 is repeatedly performed by the pitch timer for each of the first branch track 33a to 33d.
- the count of the pitch timer is repeated so that the first branch track 33d, 33c, 33b, 33a becomes 0 in the order.
- each transport vehicle 10 stopped at the stop position is forcibly started.
- the transporting vehicles 10d, 10c, 10b, and 10a that are stopped are started in this order.
- the count of the pitch timer in the first branch track 33a, 33b may be set to 0 at the same timing.
- the transport vehicle that is stopped at the stop position of the first branch track 33a, 33b. 10a and 10b are started simultaneously.
- the count of the pitch timer in the first branch track 33b, 33c may be set to 0 at the same timing.
- the stop position of the first branch track 33b, 33c The transport vehicles 10b and 10c that are stopped at the same time are started simultaneously.
- the count of the pitch timer in the first branch track 33c, 33d may be set to 0 at the same timing. In this case, the first branch track 33c, 33d. The transport vehicles 10c and 10d that are stopped at the stop position are started simultaneously.
- FIG. 12 is a schematic plan view showing an operation example when the loading operation cannot be completed.
- FIG. 12A for example, when it is determined that the time required for loading on the transport vehicle 10a exceeds the time limit, the loading operation on the transport vehicle 10a cannot be completed and the transport vehicle 10a is completed. Allocation of the load L to is not performed, and the transport vehicle 10 is left empty.
- FIG. 12B the transport vehicle 10a is started when the count of the pitch timer reaches 0, even if it is not loaded.
- the transport system 1 has the first branch track 33 a to 33 d with the stop position corresponding to the delivery port 4, and these first branch tracks 33 a to 33 d merge with the first main track 31.
- the second branch track 34a to 34d has a stop position corresponding to the delivery port 4, and the second branch tracks 34a to 34b merge with the second main track 32.
- the start timing of the downstream branch line track of the first branch track 33a to 33d in the carrier vehicle 10 is set to the start timing of the upstream branch line track of the first branch track 33a to 33d.
- the start timing is the same as or earlier than the start timing.
- the start timing of the downstream branch line track of the second branch tracks 34a to 34d in the transport vehicle 10 is set to the start timing of the upstream branch line track of the second branch tracks 34a to 34d.
- the start timing is the same as or earlier than the start timing.
- the transport vehicle 10 that arrives first waits until the transport vehicle 10 that arrives later arrives.
- the start control can be easily performed.
- the branch points 36 a to 36 d of the plurality of first branch tracks 33 a to 33 d are separated from each other in the second main track 32.
- each of the plurality of transport vehicles 10 traveling on the second main track 32 is sequentially entered into the plurality of first branch track 33a to 33d in order from the downstream side to the upstream side.
- the transport vehicle 10 can be distributed to the first branch track 33a to 33d so that the transport vehicles 10 arrive at the respective stop positions of the first branch track 33a to 33d at the same timing. It is possible to suppress the branch travel in which a certain transport vehicle 10 branches from the second main track 32 from interfering with the branch travel in which another transport vehicle 10 branches from the second main track 32.
- the start control can be smoothly operated.
- the standby time for the standby control can be reduced.
- the branch points 38a to 38d of the plurality of second branch track 34a to 34d are separated from each other in the first main track 31.
- each of the plurality of transport vehicles 10 traveling on the first main track 31 is sequentially entered into the plurality of second branch track 34a to 34d in order from the downstream side to the upstream side.
- the transport vehicle 10 can be distributed to the second branch track 34a to 34d so that the transport vehicle 10 arrives at the respective stop positions of the second branch track 34a to 34d at the same timing. It is possible to suppress the branch travel in which a certain transport vehicle 10 branches from the first main track 31 from interfering with the branch travel in which another transport vehicle 10 branches from the first main track 31.
- the start control can be smoothly operated.
- the standby time for the standby control can be reduced.
- the approach control to enter the first branch track 33a to 33d is executed for each transport vehicle group including the number of transport vehicles 10 corresponding to the number of the first branch tracks 33a to 33d by the virtual connection control.
- the approach control for entering the second branch track 34a to 34d is executed for each transport vehicle group including the number of transport vehicles 10 corresponding to the number of the second branch tracks 34a to 34d.
- the transport system 1 determines the delivery port 4 of the transport destination for the transport vehicle 10 traveling in the specific section R. Thereby, even if the said situation arises, it becomes easy to determine the delivery port 4 of a conveyance destination according to it. It is possible to suppress the platoon of the plurality of transport vehicles 10 from being disturbed, to suppress the occurrence of traffic jams in the plurality of transport vehicles 10, and to improve the transport efficiency of the load L.
- each transport vehicle 10 stopped at the stop position corresponding to each delivery port 4 is repeated at a fixed cycle for each of the first branch track 33a to 33d and the second branch track 34a to 34d (pitch timer). (When the count reaches 0) Thereby, even if each conveyance vehicle 10 stopped is not loaded, it will start if the said timing comes. It is possible to prioritize the traveling of the plurality of transport vehicles 10 and thus increase the number of deliveries of the load L during the system operation period and increase the transport amount limit value. As a result, the conveyance efficiency of the load L can be improved.
- the track 3 is a circular track (the first main track 31, the second main track 32, the first branch track 33a to 33d, and the second branch track 34a to 34d) that makes the plurality of transport vehicles 10 run around.
- the plurality of transport vehicles 10 are caused to travel along the circular track so that the circular distance or the circular time is the same. Thereby, it can suppress that the row
- the transport system 1 it is possible to control so that the plurality of transport vehicles 10 perform unloading in parallel and the plurality of transport vehicles 10 perform loading in parallel in parallel.
- the transport vehicle 10 can be controlled with relatively simple logic as compared to blocking control using a pass permission request, a pass permission command, or a pass impossible command.
- the time required for communication can be shortened compared to a transport system that performs communication by polling communication.
- the controller 20 when the transport vehicle 10 is about to enter a junction or branch point, the controller 20 requests the controller 20 to permit the entry, and executes the entry when the controller 20 obtains permission. Take control. Under such control, the transport system 1 does not obtain permission from the controller 20, and the transport vehicle 10 can travel smoothly without stopping before the junction or branch point. .
- the track 3 includes four first branch track 33a, 33b, 33c, 33d.
- the number of the first branch tracks may be two, three, or five or more.
- the track 3 includes four second branch track 34a, 34b, 34c, 34d, the number of the second branch tracks may be two, three, or five or more.
- the transport destination determination control for determining the transport destination of the transport vehicle 10 traveling in the specific section R is executed.
- the transport destination determination control may not be performed, and the transport destination delivery port may be performed at an arbitrary timing. 4 may be determined.
- the standby control for waiting for the start of the transport vehicle 10 that arrives first at the stop position is executed, but the standby control may not be executed.
- the entrance control is performed in which the transport vehicle 10 sequentially enters the plurality of first branch track 33a to 33d and the plurality of second branch track 34a to 34d in order from the downstream side to the upstream side. It is not necessary to execute.
- the virtual connection control for performing the control for each transport vehicle group including the plurality of transport vehicles 10 is executed, but the virtual connection control may not be executed.
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Abstract
Description
Claims (7)
- 軌道に沿って走行し、荷を搬送する複数の搬送車と、
複数の前記搬送車の走行を制御するコントローラと、を備えた搬送システムであって、
前記軌道は、第1主軌道と、この第1主軌道上に互いに離れて配置される複数の合流点と、それぞれが、互いに異なる前記合流点を介して前記第1主軌道に繋がる複数の支線軌道と、を有し、
各合流点は、前記第1主軌道において互いに離れており、
複数の前記支線軌道のそれぞれには、前記搬送車が前記荷を受け渡しするための受渡しポートに対応した停止位置があり、
前記コントローラは、
複数の前記支線軌道のそれぞれの前記受渡しポートに対応した停止位置に停止している各搬送車について、下流側の前記支線軌道の前記搬送車を、上流側の前記支線軌道の前記搬送車と同時又はそれよりも先に発進させる、搬送システム。 - 前記コントローラは、
複数の前記支線軌道のそれぞれの前記受渡しポートに対応した停止位置に異なるタイミングで到着する各搬送車について、先に到着する前記搬送車の発進を、後に到着する前記搬送車が到着するまで待機させる、請求項1に記載の搬送システム。 - 前記軌道は、第2主軌道と、この第2主軌道上に互いに離れて配置される複数の分岐点と、を更に有し、
複数の前記支線軌道のそれぞれは、互いに異なる前記分岐点を介して前記第2主軌道に繋がっており、
前記コントローラは、
前記第2主軌道を走行する複数の前記搬送車のそれぞれを、複数の前記支線軌道のそれぞれへ下流側から上流側の順で順次進入させる進入制御を実行する、請求項1又は2に記載の搬送システム。 - 前記コントローラは、複数の前記支線軌道の数に対応する数の前記搬送車を含む搬送車群ごとに、前記進入制御を実行する、請求項3に記載の搬送システム。
- 前記コントローラは、前記第2主軌道における各分岐点よりも上流の特定区間を走行する前記搬送車について、搬送先の前記受渡しポートを決定する、請求項3又は4に記載の搬送システム。
- 前記コントローラは、複数の前記支線軌道のそれぞれの前記受渡しポートに対応した停止位置に停止した各搬送車について、複数の前記支線軌道ごとに一定周期で繰り返されるタイミングで発進させる、請求項1~5の何れか一項に記載の搬送システム。
- 前記軌道は、複数の前記搬送車を周回走行させる周回軌道を含み、
前記コントローラは、複数の前記搬送車を、周回距離又は周回時間が同じになるように前記周回軌道に沿って走行させる、請求項1~6の何れか一項に記載の搬送システム。
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SG11202010020PA SG11202010020PA (en) | 2018-05-01 | 2019-01-30 | Carrier system |
US17/045,787 US12110177B2 (en) | 2018-05-01 | 2019-01-30 | Carrier system |
EP19796612.0A EP3789266B1 (en) | 2018-05-01 | 2019-01-30 | Carrier system |
KR1020207025659A KR102389724B1 (ko) | 2018-05-01 | 2019-01-30 | 반송 시스템 |
CN201980016432.2A CN111788106B (zh) | 2018-05-01 | 2019-01-30 | 输送系统 |
JP2020517019A JP6935846B2 (ja) | 2018-05-01 | 2019-01-30 | 搬送システム |
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EP (1) | EP3789266B1 (ja) |
JP (1) | JP6935846B2 (ja) |
KR (1) | KR102389724B1 (ja) |
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JP2022045704A (ja) * | 2020-09-09 | 2022-03-22 | 株式会社ダイフク | 物品搬送設備 |
JP7283456B2 (ja) | 2020-09-09 | 2023-05-30 | 株式会社ダイフク | 物品搬送設備 |
WO2022130758A1 (ja) * | 2020-12-16 | 2022-06-23 | 村田機械株式会社 | 搬送システム |
JPWO2022130758A1 (ja) * | 2020-12-16 | 2022-06-23 | ||
JP7468704B2 (ja) | 2020-12-16 | 2024-04-16 | 村田機械株式会社 | 搬送システム |
WO2023238484A1 (ja) * | 2022-06-06 | 2023-12-14 | 村田機械株式会社 | 搬送システム |
Also Published As
Publication number | Publication date |
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TWI801571B (zh) | 2023-05-11 |
TW201945267A (zh) | 2019-12-01 |
SG11202010020PA (en) | 2020-11-27 |
CN111788106A (zh) | 2020-10-16 |
EP3789266A4 (en) | 2022-01-26 |
EP3789266A1 (en) | 2021-03-10 |
JPWO2019211933A1 (ja) | 2021-02-12 |
JP6935846B2 (ja) | 2021-09-15 |
EP3789266B1 (en) | 2023-03-01 |
KR20200116999A (ko) | 2020-10-13 |
KR102389724B1 (ko) | 2022-04-21 |
US12110177B2 (en) | 2024-10-08 |
CN111788106B (zh) | 2022-07-26 |
US20210155406A1 (en) | 2021-05-27 |
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