CN-121998293-A - Intelligent trolley scheduling method for production line

CN121998293ACN 121998293 ACN121998293 ACN 121998293ACN-121998293-A

Abstract

The application relates to an intelligent trolley scheduling method of a production line, which belongs to the technical field of automatic logistics and intelligent manufacturing, and comprises the steps of obtaining the maximum process capability of a single intelligent trolley according to a plurality of nodes of the production line, obtaining the stable process capability of the single intelligent trolley according to a preset starting rate and the maximum process capability of the single intelligent trolley, obtaining the number of the intelligent trolleys on the production line according to the takt of the production line and the stable process capability of the single intelligent trolley, and controlling the number of the intelligent trolleys on the production line in real time through a scheduling system according to the number of the intelligent trolleys on the production line.

Inventors

HAN DEHONG
FAN WENJIAN
CHEN HUIYU
QIN ZUBIN
QIN JICHENG

Assignees

上汽通用五菱汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251216

Claims (11)

1. An intelligent trolley scheduling method for a production line, which is characterized by comprising the following steps: obtaining the maximum process capacity of a single intelligent trolley according to a plurality of nodes of a production line, wherein the maximum process capacity is the time consumption of the single intelligent trolley for completing one cycle through all the nodes of the production line; obtaining the stable process capability of the single intelligent trolley according to the preset starting rate and the maximum process capability of the single intelligent trolley; Obtaining the number of the intelligent trolleys on line according to the production line beats and the single intelligent trolley stabilizing process capacity; determining the number of target intelligent trolleys according to the number of the intelligent trolleys on the line; And scheduling the intelligent trolleys according to the number of the target intelligent trolleys, so that the number of the intelligent trolleys on the production line is the number of the target intelligent trolleys.
2. The method of claim 1, wherein the obtaining the single intelligent car stabilizing process capability according to the preset starting rate and the single intelligent car maximum process capability comprises: Obtaining the single intelligent trolley stabilizing process capability through a first formula according to a preset starting rate and the maximum process capability of the single intelligent trolley, wherein the first formula is as follows: T Stabilization = T Maximum value ×O presetting ; Wherein T Stabilization is the stable process capacity of the single intelligent trolley, T Maximum value is the maximum process capacity of the single intelligent trolley, and O presetting is the preset starting rate.
3. The method of claim 2, wherein the obtaining the number of intelligent trolleys on line based on the production line beats and the single intelligent trolley stabilizing process capability comprises: acquiring the beat of the production line in real time; obtaining the number of the intelligent trolleys on the line according to the production line beat and the single intelligent trolley stabilizing process capacity through a second formula, wherein the second formula is as follows: N = T Stabilization /T Beat ; Wherein N is the number of intelligent trolleys on line, T Stabilization is the stabilizing process capability of a single intelligent trolley, and T Beat is the single time consumption obtained according to the production line beat.
4. The method of claim 1, wherein the obtaining a single intelligent cart maximum process capability from a plurality of nodes of a production line comprises: The plurality of nodes of the production line comprise fixed time-consuming nodes and driving time-consuming nodes, wherein the time consumption of the fixed time-consuming nodes is preset fixed time consumption, and the time consumption of the driving time-consuming nodes is driving time consumption; And adding the time consumption of each fixed time consumption node and the time consumption of each driving time consumption node in the production line to obtain the maximum process capacity of the single intelligent trolley.
5. The method of claim 4, wherein adding the time spent for each fixed time spent node and the time spent for each travel time spent node in the production line results in the single intelligent vehicle maximum process capability, comprising: when the production line is a vehicle door split line, the fixed time-consuming nodes comprise a door disassembly node, a material waiting node, a material receiving node, a warehouse entry node, an installation node and an installation node, wherein the driving time-consuming nodes comprise a first operation section, a material discharging section, a second operation section, a third operation section, a warehouse entry operation section, a warehouse adjustment operation section, a warehouse exit operation section, a fourth operation section and a fifth operation section; and adding the time consumption of each node in the vehicle door sub-assembly line to obtain the maximum process capacity of the single intelligent trolley.
6. The method of claim 5, wherein the time consuming for the door opening node, the waiting for discharging node, the waiting for receiving node, the waiting for warehousing node, the waiting for installing node, and the installing node are respectively preset fixed values.
7. The method of claim 5, wherein the method further comprises: According to the first preset speed and the lengths of the first operation section, the warehouse-in operation section, the warehouse-out operation section and the fourth operation section, the time consumption of the first operation section, the warehouse-in operation section, the warehouse-out operation section and the fourth operation section is respectively obtained through a time consumption calculation formula; Obtaining the driving time consumption of the discharging road section according to the second preset speed and the length of the discharging road section through the time consumption calculation formula; And according to the third preset speed and the lengths of the second operation section, the third operation section and the fifth operation section, the running time of the second operation section, the third operation section and the fifth operation section is obtained through the time-consuming calculation formula in sequence.
8. The method of claim 7, wherein the time-consuming calculation formula is: T Time consuming = L / V ; Wherein T Time consuming is the time consumption of driving corresponding to L, L is the length of a first operation section, a discharging section, a second operation section, a third operation section, a warehouse-in operation section, a warehouse-out operation section, a fourth operation section or a fifth operation section, and V is the first preset speed, the second preset speed or the third preset speed corresponding to L.
9. The method of claim 1, wherein said determining a target intelligent car number from said on-line intelligent car number comprises: acquiring the number of stations on the production line; multiplying the station number by the preset trolley number of each station to obtain the station intelligent trolley number; And adding the station intelligent trolley number, the preset redundant number and the online intelligent trolley number to obtain the target intelligent trolley number.
10. The method of claim 1, wherein the scheduling the intelligent carts according to the target intelligent cart number to make the intelligent cart number on the production line the target intelligent cart number comprises: When the number of the intelligent trolleys actually running on the production line is lower than the number of the target intelligent trolleys, the n intelligent trolleys outside the production line in an idle state are scheduled to be integrated into the production line, wherein n is the number of the target intelligent trolleys-the number of the intelligent trolleys actually running on the production line; When the number of the intelligent trolleys actually running on the production line is higher than the target intelligent trolley number, the intelligent trolleys actually running on the production line are ordered from low to high according to the electric quantity, the first n intelligent trolleys are controlled to be separated from the production line and go to a charging station to be charged, and n=the intelligent trolley number actually running on the production line-the target intelligent trolley number.
11. An intelligent cart scheduling system for a production line, the system comprising: The process capability module is used for obtaining the maximum process capability of the single intelligent trolley according to a plurality of nodes of the production line, wherein the maximum process capability is the time consumption of the single intelligent trolley for completing one-time circulation through all the nodes of the production line; The trolley quantity module is used for obtaining the quantity of the intelligent trolleys on line according to the production line beat and the single intelligent trolley stabilizing process capability; And the scheduling module is used for scheduling the intelligent trolleys according to the number of the target intelligent trolleys, so that the number of the intelligent trolleys on the production line is the number of the target intelligent trolleys.

Description

Intelligent trolley scheduling method for production line Technical Field The invention belongs to the technical field of automatic logistics and intelligent manufacturing, and particularly relates to an intelligent trolley scheduling method of a production line. Background Along with the acceleration transformation of the automobile manufacturing industry to the intelligent and flexible direction, the logistics efficiency and the production coordination capability of the automobile generating line directly influence the beat and the quality of the whole automobile manufacturing. In recent years, as a new generation of unmanned carrying equipment, the intelligent trolley realizes non-fixed track operation through laser SLAM or visual navigation and has the capabilities of autonomous path planning, multi-trolley cooperative scheduling and seamless butt joint with an MES system. In the prior art, part enterprises try to adopt the intelligent trolleys of fixed quantity to carry out the transportation task of production line, because the beat on the automobile production line can sometimes adjust the change, the intelligent trolleys of fixed quantity can't satisfy the transportation demand and influence the assembly progress when the beat is fast, and the intelligent trolleys of fixed quantity then have idle when the beat is slow, waste resources. Disclosure of Invention Therefore, the invention provides an intelligent trolley scheduling method for a production line, which aims to solve the problems that in the prior art, a fixed number of intelligent trolleys carry out transportation tasks of the production line, and transportation requirements cannot be met or transportation resources are wasted due to idle due to beat change. In order to achieve the above purpose, the invention adopts the following technical scheme: in a first aspect, the present invention provides a method for scheduling intelligent trolleys in a production line, including: obtaining the maximum process capacity of a single intelligent trolley according to a plurality of nodes of a production line, wherein the maximum process capacity is the time consumption of the single intelligent trolley for completing one cycle through all the nodes of the production line; obtaining the stable process capability of the single intelligent trolley according to the preset starting rate and the maximum process capability of the single intelligent trolley; Obtaining the number of the intelligent trolleys on line according to the production line beats and the single intelligent trolley stabilizing process capacity; determining the number of target intelligent trolleys according to the number of the intelligent trolleys on the line; And scheduling the intelligent trolleys according to the number of the target intelligent trolleys, so that the number of the intelligent trolleys on the production line is the number of the target intelligent trolleys. Further, the obtaining the single intelligent trolley stabilizing process capability according to the preset starting rate and the single intelligent trolley maximum process capability includes: Obtaining the single intelligent trolley stabilizing process capability through a first formula according to a preset starting rate and the maximum process capability of the single intelligent trolley, wherein the first formula is as follows: T Stabilization = T Maximum value ×O presetting ; Wherein T Stabilization is the stable process capacity of the single intelligent trolley, T Maximum value is the maximum process capacity of the single intelligent trolley, and O presetting is the preset starting rate. Further, the obtaining the number of the intelligent trolleys on line according to the production line beat and the single intelligent trolley stabilizing process capability comprises the following steps: acquiring the beat of the production line in real time, wherein the beat is a flexible beat which changes at any time; obtaining the number of the intelligent trolleys on the line according to the production line beat and the single intelligent trolley stabilizing process capacity through a second formula, wherein the second formula is as follows: N = T Stabilization /T Beat ; Wherein N is the number of intelligent trolleys on line, T Stabilization is the stabilizing process capability of a single intelligent trolley, and T Beat is the single time consumption obtained according to the production line beat. Further, the obtaining the maximum process capability of the single intelligent trolley according to the plurality of nodes of the production line comprises the following steps: The plurality of nodes of the production line comprise fixed time-consuming nodes and driving time-consuming nodes, wherein the time consumption of the fixed time-consuming nodes is preset fixed time consumption, and the time consumption of the driving time-consuming nodes is driving time consumption; And adding the time consumption