SIM18 · 未来状态 / 信息流控制物流SIM18 · Future state / Information flow controls material flow

未来状态图跑起来:超市补货、先进先出、一个定拍工位Run the future state: supermarket replenishment, FIFO, and one pacemaker

客户每 10 秒取 1 件;装配 C/T 8 秒,冲压 C/T 4 秒。切换推动与拉动,盯住装配前缓冲、三层超市、FIFO 道和逆物流回到冲压的青色看板:产出可能一样,货等人的形态完全不同。The customer takes one part every 10 seconds; assembly runs at an 8-second C/T and stamping at 4 seconds. Switch between push and pull, then watch the assembly buffer, three-level supermarket, FIFO lane, and cyan Kanban returning upstream. Output can match while the shape of waiting inventory changes completely.

🎬 同样 300 秒:看出货,也看货压在哪里🎬 Same 300 seconds: watch shipments—and where material waits
客户节拍 10s · 装配 C/T 8s · 冲压 C/T 4s · FIFO 先进先出Customer takt 10s · assembly C/T 8s · stamping C/T 4s · FIFO sequence preserved
0 / 300s
0
WIP0
0
看板逆流Kanban return规则内在制品Controlled WIP推动压货Push pile缓冲峰值Buffer peak
运行方式Operating policy

💡 跑完看数据:出货一样多,在制品形态不一样💡 Run it, then read the numbers: same shipments, different WIP behavior

同一 stats() 供 HUD、看板、横幅和验收读取One stats() source drives the HUD, Andon, banner, and audit API
方式Policy300 秒出货Shipments / 300s装配前缓冲峰值Peak pre-assembly buffer全系统 WIP 峰值Peak system WIP
推动 · 批量 12Push · batch 12
拉动 · 超市 6 / FIFO 4Pull · supermarket 6 / FIFO 4

模型规则:推动式冲压每 120 秒整批压入 12 件;拉动式只有 Pacemaker 接指令,FIFO 未满才装配、超市少 1 件才按冲压 C/T 4 秒补 1 件。两种方式都由客户每 10 秒取货定拍。Model rule: Push releases a full batch of 12 every 120 seconds. Under pull, only the pacemaker receives the schedule: assembly runs only when FIFO has space, and stamping replaces each supermarket withdrawal at a 4-second C/T. Customer pickup every 10 seconds paces both systems.

🎯 未来状态规则🎯 Future-state rule
只给 Pacemaker 下指令;超市管补多少,FIFO 管先后顺序。Schedule only the pacemaker; the supermarket controls quantity and FIFO protects sequence.

⚠ 常见误区⚠ Common mistakes

✗ 拉动就是零库存✗ Pull means zero inventory
✓ 超市和 FIFO 道就是库存,只是量被规则锁死了。✓ The supermarket and FIFO lane are inventory—their quantities are simply capped by rule.
✗ 多备料才保险✗ More material is safer
✓ 出货由节拍决定,多备的料变不成销量,只变成在制品。✓ Takt sets shipments. Extra material cannot become sales; it only becomes WIP.

未来状态图跑起来:超市补货、先进先出、一个定拍工位