The penetration of Internet of things (IoT) in the production control of modern manufacturing workshop has prompted advanced intelligent and information-based manufacturing techniques. However, the relevant studies fail to collect and process the various manufacturing parameters in real time, and rarely consider the coordination between manufacturing workshop and machines. This paper explores the digital production control of manufacturing workshop based on the IoT. Firstly, block diagrams were drawn for IoT-based digital workshop production control and software design of digital production control system, and a multi-objective optimization model was established for IoT-based digital workshop production control, aiming to optimize delivery time, machine load, and machine utilization rate. Next, the order sequencing method was detailed for digital workshop production control. Finally, machine competency and collaborative efficiency were introduced as optimization objectives, and an IoT-based strategy was designed for collaborative allocation of sub-tasks for workshop production. Our method was proved effective through experiments.

Securing a safe environment is a big issue for workplaces to tackle. Among the casualties in industries of all kinds, accidents in coal mines are the most serious. Starting from the angle of economics, Endogenous Growth Theory was used as the analysis tool in this paper in the hope of finding some solutions to eliminate hazardous elements in coal mines. Based on the analysis, coal enterprises' safe and steady development must rely on human resources and staff development. As coal enterprises are highly dangerous, staff can ensure safe production of coal mines. Without qualified staff, safety cannot be guaranteed. Then, from the angle of trainers, including government, education departments, and enterprises, and the angle of trainees, including undergraduate students, employees and the public, the paper discusses how individual trainers departments should collaborate with each other to accomplish their duties to cultivate trainees, thus to build a multi-channel system of training staff.