Definition, connotation and progress of digital mine

1 Overview

With the development of computer technology, information technology, communication technology, automatic control technology, 3S (GIS, GPS, RS) technology and network technology, many domestic research institutions and scholars have put forward their own views and ideas on the key technologies and construction schemes of digital mine construction from different angles [1-17]. The establishment of digital mines can not only realize the digitization of safety management, provide information guarantee for building intrinsically safe mines, but also realize the refinement of production management, and provide decision-making means for building high-yield and high-efficiency mines. Therefore, many mining enterprises in China have increased the investment in information construction and made efforts to build digital mines. Most modern mines and large group companies have realized the networking of gas monitoring systems, and some companies have realized partial comprehensive automation. Some companies have implemented partial ERP projects, equipment management, or asset management; Most companies have realized computer-aided measurement and drawing; Some companies have begun to implement the construction of geographic information systems; Some mining enterprises digital mine construction has become a prototype.

However, because the mine is a discrete production system with resources as the development object, the main operation is in the deep surface of the earth, complex geological conditions, harsh environment, gas, dust, water damage, top and bottom accidents, hidden dangers of fire are difficult to detect and identify, large-scale accidents occur from time to time, which has caused great losses to China's mining production. It also seriously endangered the personal safety of miners. Therefore, digital mining is neither a simple extension of the concept of "digital Earth", nor a simple copy of the ordinary ERP concept, but a new concept that contains some characteristics of both. The gap between China's mines and developed mining countries in the field of information technology such as mine survey, planning, design, production, management and whole-process monitoring is widening. China's mines have not taken information resources as one of the important strategic resources for overall development and utilization, and have not formed a stable system performance and sufficient information resources for mine information infrastructure. Many scholars and technical personnel of enterprises still have vague definition, connotation and function of digital mine. Through the complete definition of digital mine, this paper briefly describes the technical characteristics, construction content, technical specifications and system functions of digital mine. Based on the results of "863" national key project "Development of digital Mining Key Technology and Software", the development of digital mining technology and its application in mining enterprises in China are discussed.

2 Definition of digital mine

Digital mine, also known as smart mine, is a digital intelligent body based on the digitization of mines that can complete the accurate and timely collection, network transmission, standardized integration, visual display, automated operation and intelligent service of all information of mining enterprises.

1) Digital basis: all the content of the mine has been processed into digital information that modern computers can accept, store, copy, process and network transmission, and ensure the integrity of the information.

2) Accurate and timely collection: it can accurately collect the safety, production and management information needed at any place and any time, and ensure the timeliness of information.

3) Network transmission: All information, including real-time data, multimedia data and management data, can be transmitted on time, reliably and safely through the local area network and the wide area network, and the necessary data must ensure clock synchronization.

4) Standardized integration: Through standard data formats, open communication protocols and unified management specifications defined by the data warehouse to achieve the interconnection of information in various applications, to ensure the unique entry and consistency of data.

5) Visual presentation: All information and models in the data warehouse can be expressed and displayed using 4D geographic information system technology, virtual reality technology, simulation technology, multimedia technology and visual analysis technology to achieve transparent management.

6) Automated operation: For the main production execution links, monitoring and monitoring links, time limits, high accuracy links and poor environment, easy fatigue links to achieve automated or unmanned operation.

7) Intelligent service: Provide intelligent tools and comprehensive decision support in some aspects such as risk identification, disaster early warning, accident alarm, scheme design, planning, process control, economic analysis, scheduling optimization, etc., to minimize the intensity of mental labor and avoid human decision-making errors.