Virtual reality, abbreviated as VR, is a technology that comprehensively utilizes computer graphics systems and various interface devices such as reality and control to generate interactive three-dimensional environments on computers, providing users with simulated immersive feelings about visual, auditory, olfactory, gustatory, tactile and other senses. VR technology has the following four characteristics:

Multi sensory perception refers to perception systems such as sight, force, touch, motion, taste, and smell. In terms of the development of ideal VR technology for humans, it is hoped that all perceptions in reality can be fully simulated. However, due to limited technology currently available, only perception systems such as sight, force, touch, motion, taste, and smell can be simulated.

Presence, also known as presence, refers to the degree to which users feel that they are the protagonist in a simulated environment. The ideal simulation environment should reach a level that makes it difficult for users to distinguish between real and fake.

Interactivity refers to the ability for individuals to feel the weight, shape, color, and other interactive information between themselves and objects by touching and using specific objects in the virtual world, just like in real life.

★ Imaginative refers to a person being in a virtual world, presenting their thoughts, objects, and actions in the virtual world, imagining what effects can be achieved by doing this or that, and even presenting things and objects that cannot exist in the real world in the virtual world.

With the rapid development and progress of advanced technologies such as computer technology in our country, various industries in our country are paying more and more attention to virtual reality technology, and the research on VR technology in China is also more extensive and profound. VR technology is being applied in more and more industries and fields, such as in the medical field. VR technology can be used to simulate surgeries, greatly improving the success rate of surgeries in reality and ensuring the safety of patients' lives. In addition, VR technology has applications in various fields such as military, technology, commerce, architecture, entertainment, and daily life.

Although VR technology does not have a long history, its prospects are very promising. Virtual reality technology has the advantages of low investment and high recovery, and has promising prospects in many aspects. It is not difficult to predict that this technology will continue to develop towards greater intelligence and IoT perception.

The grain industry lags behind other industries in terms of information technology construction. Since 2013, with strong support from national and local governments' policies and funds, grain related enterprises have embarked on a new wave of nationwide information technology construction. Information technology construction includes both intelligent warehousing hardware equipment and comprehensive business control platform software: Smart Grain Depot. Forward looking and technologically advanced information construction units have applied cutting-edge VR technology and future development trends in mobile technology to smart grain depots, achieving a breakthrough in information technology and changing the current situation of backward informationization in grain enterprises. Using VR technology to create three-dimensional models of office buildings, bungalows, shallow circular warehouses, drying rooms, weighing rooms, gatehouses, etc. in the grain depot scene, based on Geographic Information System (GIS). The virtual reality visualization platform places all management objects in a three-dimensional visualization environment, implements relevant GIS operations on the platform, and realizes grain depot business query management, enabling grain depot users to view grain storage information and related business information in the three-dimensional visualization scene, in order to achieve virtual reality visualization management of grain depots. Provide information support for the daily operation of grain reserve business and major decisions. The intelligent grain depot virtual reality visualization platform mainly includes five subsystems: "virtual reality storage area system, virtual reality warehousing information system, virtual reality grain situation system, virtual reality ventilation control system, and virtual reality video monitoring system".

Virtual Reality Warehouse System
Simulate real data in real scenes through 3D modeling, and freely change viewing angles. Employees can roam around the warehouse area to view virtual reality scenes at each location;

Warehouse Area Roaming Map

Virtual Reality Warehouse Information System
Real time information such as storage capacity data, quality grade, grain temperature data, humidity data, single warehouse energy consumption, gas concentration, etc. can be viewed as a whole in each compartment of the grain depot.

Virtual Reality Grain Situation System
By roaming into the warehouse, one can understand the temperature situation of the grain. The layout of each temperature measurement cable and the location of temperature sensing points in each warehouse can be seen, and the temperature data of each temperature measurement point can be displayed in real time. At the same time, virtual reality is applied to the pest traps in the pest detection channel, and the number of pests in the channel is displayed in real time.

Virtual reality ventilation control system
The installation quantity, location, and real-time operation status information of ventilation equipment in the warehouse can be visually viewed in the virtual model, and the actual ventilation window and vent positions can be associated to control their switches. It is possible to quickly open and close windows and fans of the entire warehouse in a virtual visualization model.

Virtual reality video surveillance system
Through the virtual model, the layout of video surveillance points, types of monitoring equipment, and normal operating status of the entire storage area can be viewed. Can interact with the video surveillance system, click on the camera icon in the virtual model to view the surveillance video at the corresponding location.

Video Surveillance in Virtual Reality Models

Real time video surveillance footage

VR technology application achievements

★ Simulation capability

A very intuitive representation of the storage capacity and appearance of the entire warehouse area, including the layout and quantity of warehouse equipment, as well as the simulation display of equipment status. Provided a friendly human-computer interaction interface, facilitating real-time data queries for daily assignments, improving work efficiency and business management capabilities. Many staff members in the grain depot have a low level of education and computer skills. The virtual reality visualization platform in the grain depot is intuitive and easy to operate, dispelling their resistance to informatization and promoting their interest in learning and using information systems.

★ Targeted

With the help of VR technology, business training employees can place themselves in a virtual environment for targeted business knowledge training, improving their cognitive abilities and related business skills.

★ Security

As a top priority for safety in grain enterprises, custodians need to perform high-risk tasks such as circulation fumigation.

The virtual exercise environment is much safer than the real world. Training and trainees can boldly try various exercise plans in the virtual environment to ensure the personal safety of trainees without any risks. Trainees can remove the burden of accident hazards and conduct extreme exercises as much as possible, thereby greatly improving their skill level and ensuring personal and accident safety in future practical operations.

★ Attracting Talents

As a state-owned enterprise guaranteed by the state, grain reserve enterprises do not have advantages in operating income and working environment, and their management level is backward and their level of informatization is poor. Many grain reserve enterprises have a high average age, resulting in an age gap, making it difficult to recruit young personnel, and even more challenging to attract talent with a certain technical foundation. The application of VR technology in the smart grain storage system has changed people's perception of the technological backwardness of existing grain reserve enterprises, and has laid a solid foundation for attracting young scientific and technological talents to enter grain reserve enterprises.

★ Increased employees' sense of honor

Grain depot enterprises, as traditional state-owned enterprises, apply the current emerging VR technology to make older employees who seldom use computers feel proud of their enterprises' progressiveness platforms. It has given family and friends around them a new understanding of their company and work, increased employees' sense of honor, enhanced their loyalty and sense of belonging to the company, and also increased their work enthusiasm.

Case study of VR technology

Ankang Technology focuses on the informationization of the grain industry and has successfully implemented the application of virtual reality in the grain industry. Successful cases include the informationization projects of Fuyang Central Grain Depot in Zhejiang, Yiwu Central Grain Depot in Zhejiang, Nanxingqiao Branch of Hangzhou Storage Company, and Quzhou Provincial Grain Reserve Phase II Project. The virtual reality visualization platform implemented by VR technology has received unanimous praise from customers as a highlight and innovation of the information integration platform.