Title: Research on Factory Logistics Vehicle Scheduling System Based on RFID

Preface

In the tide of economic development, in order to expand their interests, many enterprises

have embarked on the route of expanding reproduction, but for now, many companies

The industry only increased investment in the production link, but ignored the transportation scheduling link.

bottlenecks. The transportation of these vehicles in the factory area lacks management

Traffic management in the factory area was superficial, resulting in large-scale traffic accidents in some areas.

The mold is congested, and there is also throughput caused by vehicles interfering with each other in the loading and unloading area.

A series of problems such as low production rates and untimely shipments, etc., as the scale of the enterprise increases,

As it expands, the above problems become more prominent. It has seriously troubled many warehouses

Logistics enterprises restrict their development.

1 Overall design and planning of logistics vehicle dispatching system

1.1 Vehicle transportation starting position structure

In the logistics vehicle dispatching system in the factory area, the transport vehicle is controlled

The basic logic of vehicle operation lies in the starting point and end point of vehicle operation. Control

Adjusting the starting point and end point of the vehicle is the ultimate goal of vehicle dispatching.

This is also its meaning. When the vehicle enters the factory area, it defaults to the vehicle

Transportation resources are available. When the transportation task becomes idle,

The driver is arranged in the rest area and uses a TV or electronic screen to update the operation in real time.

Input task dynamics and driver queue status. Through the large screen, drivers can

Confirm the transportation task received based on the number of the vehicle license plate attached to it,

If there are goods transported by a specified model of vehicle, the allocation rights can be set

Limit levels are used to distinguish the priority allocation of unloading slots for each type of supplier. need

When waiting and other unloading slots are available, the reservation interface will prompt for priority allocation.

The number of waiting vehicles at the unloading bay and the number of free unloading bays are available for reservation drivers.

Automatically select the unloading location. When the vehicle reaches the designated unloading platform, the indicator screen

The license plate displayed on the screen matches the driver's license plate. When the two match

When appropriate, the RFID temporary card can be handed over to the staff on the all-in-one machine

After verification, the vehicle reverses into the unloading position; the control plan

The computer records that the vehicle has entered [1] and displays the vehicle number on the information display.

Start timing; after the vehicle is unloaded and the receiving personnel confirms that it is correct, the

Operate on the machine, and after the vehicle leaves, record the unloading completion time.

The information display shows that the unloading position is free. Its logical architecture is shown in Figure 1

Show.

2 Basic software algorithms

Different from urban traffic dispatch, the vehicle dispatch command system in the factory

The system is a relatively independent and closed system, so it is affected by external factors.

The impact is small [2], and there are no factors that affect the working efficiency of the vehicle dispatching system.

In addition to transportation resources (vehicles or drivers) and transportation tasks (cargo volume)

Therefore, the adjustment and optimization of the system also need to focus on the above two factors.

unfolded based on the elements, and vehicle scheduling in transportation is based on the given transportation

Under the conditions of the mission, how to dispatch vehicles and organize circular transportation to maximize empty mileage?

At least, the transportation cost is the lowest[3]. Based on the above requirements, the design of software logic

The use of calculations and algorithms also needs to reflect this kind of thinking. in software algorithms

In the field, the operating logic of the road transportation system is considered to be several

A collection of point-to-point motions, summed over a specific limited number of paths

right, and then solve practical problems such as shortest path and transportation timeliness, which is called

for path operations. VRP combined with freight weighting algorithm is currently used by major warehousing

The main logical algorithm used in traffic dispatch and command software for logistics enterprises.

After years of use and optimization, this algorithm has strong compatibility

Capacity and safety, it is trusted and favored by the majority of logistics and transportation companies.

Become an integral part of the vehicle dispatching system.

3 Hardware components of logistics vehicle dispatching system

3.1 Sensor system

After the working logic of the vehicle dispatching system is determined, software is also needed.

Corresponding hardware devices controlled by software, the most important of which is undoubtedly based on

Management sensors for RFID technology. Radio frequency identification technology is a

Communication technology that accepts or sends specific wireless signals to realize information exchange

technology, it can quickly identify targets and complete information exchange within a range of 5~10 meters.

mutually, avoiding the inconvenience caused by mechanical contact, in order to cope with different environments

For business under conditions, RFID technology requires sensor hardware equipment to have

Stability in harsh environments such as extreme cold, humidity, and high temperatures, especially

Higher requirements have been put forward for the recognition ability of high-speed moving targets. Here

On the basis of this, a debugging port for human-computer interaction is added to enable each sensor to

All can be operated independently, and the operation is simple and fast, easy to learn and

troubleshooting. Radio frequency identification technology mainly includes electronic tags,

It is composed of I/O ports and data storage devices. Among them, electronic tags are used for storage and area

Separate user information, such as user ID and authentication, network access permission (secret key)

wait. I/O port devices are used to read and write electronic tag information; data storage

Equipment is used to manage data and communication transmission and is connected to the computer network

Connect to realize data transmission. After debugging the sensor array compatibility, the system

The expected goals to be achieved by the system are as follows: First, the improvement of the factory area

The access control system implements RFID intelligent control and distributes information to vehicles entering and exiting the factory.

RFID smart card automatically identifies incoming and outgoing vehicles and prompts corresponding entry and exit

Factory area information; secondly, monitor all unloading points and unloading positions, and monitor

The truck operating location information and unloading point busy information of the entire factory area are carried out.

linkage to create an efficient vehicle supervision model in the factory [1]; the third is to be able to

Quick response to task instructions and improve response speed to production tasks

degree, solving the problem of unresponsiveness of rapid material delivery in the case of temporary order insertion, etc.

Bottleneck problems and shorten the production response cycle.

3.3 Application of JT-9380 products

In order to improve the intelligence level of enterprise logistics vehicle dispatching system, the introduction of

JT-9380 product, which is a radio frequency identification technology-based

Intelligent hardware devices can be used for rapid task instructions in vehicle dispatching systems

Response and material distribution. JT-9380 products can be used within a range of 5~10 meters

Quickly identify targets and complete information exchange, which can help enterprises achieve object-oriented

Precise monitoring and dispatching of traffic vehicles. In addition, the JT-9380 product also features

Features:

1) High-speed recognition capability: JT-9380 product adopts a high-speed computing processor, which can identify multiple targets in a short time and meet the needs of rapid recognition of high-speed moving targets.

2) Versatility: JT-9380 products can be connected with other sensor devices to achieve a variety of functions, such as access control, vehicle location monitoring, etc.

3) Easy to install: JT-9380 product is small, lightweight, simple and convenient to install, and can be attached to different types of vehicles.

4) Strong anti-interference ability: JT-9380 product adopts advanced radio frequency interference technology, which can effectively resist external interference signals and ensure the stability of data transmission.

In short, the application of JT-9380 products will bring a higher level of intelligence and better work efficiency to the enterprise logistics vehicle dispatching system.

3.2 Scheduling access control system

The dispatch access control system is an important tool for adjusting the position and number of vehicles and ensuring driving safety. Its principle is to use RFID technology to block or allow vehicles to enter a certain blocked area to achieve the purpose of controlling traffic flow. From a micro perspective, the efficiency of the individual access control determines the work efficiency of the entire system, so the reliability of its sensor is crucial. It must ensure that its radio frequency signal can penetrate metal and human body obstructions and has stable performance, simple and convenient installation; high speed Moving targets can also be easily captured; it is waterproof and sunproof, can be used outdoors [1], and has good anti-interference ability. In order to meet the above requirements, Jtspeedwork company launched JT-R2430A 2.4G active reader and writer and JT-T2450A RFID active electronic tag. These products have the following features:

JT-R2430A 2.4G active reader:

1) Frequency band: 2.4~2.8 GHz, high recognition rate and strong anti-interference ability.

2) The radio frequency signal penetrates the obstruction of metal and human body and has stable performance.

3) High-speed moving targets can also be easily captured.

4) Easy to install and can be used outdoors.

JT-T2450A RFID active electronic tag:

1) Working temperature range: -35 ℃ ~ 75 ℃.

2) The receiving sensitivity is -90 dBm, which can greatly improve the reading rate.

3) Waterproof and sun-proof design, suitable for various environments.

The application of these products in dispatch access control systems can ensure accurate identification and rapid response of vehicles, thereby improving the efficiency and safety of the access control system. At the same time, by checking the information with the RFID card, the problem of improper scheduling can be avoided, the entry and exit of vehicles and the unloading space can be effectively managed, the unloading speed and the utilization rate of the unloading space can be improved, and the problem of vehicles randomly searching for the unloading space in the factory area can be avoided. Jtspeedwork's JT-R2430A 2.4G active reader and JT-T2450A RFID active electronic tag will significantly improve the intelligence level and management efficiency of the dispatch access control system.

Conclusion

This article starts from the overall design and planning of logistics vehicle dispatching system,

Vehicle Scheduling Path Planning Algorithm and Logistics Vehicle Scheduling in Transportation

Starting from multiple perspectives such as the hardware composition of the system, we comprehensively analyze the factory logistics vehicles.

The vehicle dispatching system was analyzed and studied, and the operation based on RFID technology was

Used to briefly introduce the organizational structure and operating logic of the entire system. I hope

We hope that through mutual exchanges and discussions, we can promote mutual progress

step.

references

[1] Fang Xiongli, Chen Xubing, Yu Liangwei, et al. Factory logistics based on RFID

Research on vehicle dispatching system [J]. Internet of Things Technology, 2017 (8): 20.

[2] Wang Xingji, Dong Xuehui. Special signal source system of radio and television transmission center

Failure Analysis[J]. Technology to Get Rich Guide, 2009 (8): 25.

[3] Ye Shaoting. Research on real-time vehicle dispatching algorithm based on RFID and its

System Implementation[D]. Dalian: Dalian Maritime University, 2012 (5): 1.

[4] Fu Zhiyuan, Chen Xubing, Wang Yuhui, et al. Based on RFID and ground sensing technology

Research on factory unloading location management system [J]. Modern electronic technology,

2014, 37(12): 1-3.

Research on Vehicle Scheduling System of

Factory Logistics Based on RFID

Li Shanshan1 , Shi Dongjian1 , Chen Xiaobo2

(1.College of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong, China;

2.Jiangsu Lider Electronic Information Technology Co., Ltd., Nantong, China)

Abstract: With the penetration of information technology to various industries, the management model of

manufacturing industry has been changed to a certain extent. Especially in the logistics management system of

traditional manufacturing enterprise, there are a lot of logistics vehicles in and out of the factory because of

the business of goods purchase, delivery to suppliers and unloading of vehicles. The original manual command

and dispatch method can not cope with the intensive vehicle scheduling task, and can not adapt to the larger

scale production and transportation task in the future. Based on the technology popularization and rail

information for the purpose of RFID-based factory logistics vehicle scheduling system for a brief analysis and

research

Key words: RFID technology introduction; logistics vehicle scheduling system; independent algorithm

research and implementation