本文主要研究如何在尽可能节约能源的前提下，结合地下车库的特点，研究开发

This paper mainly studies how to save energy as much as possible, combined with the characteristics of underground garage, research and develop a smart control ventilation system based on RS-485 field bus, using MSP430 microcontroller as the controller. The control system can collect the environmental parameters in the underground garage and send the data to the host computer, and then induce the optimal operation time of the fan through the relay circuit control, thereby adjusting the environmental parameters in the underground garage to achieve the best energy-saving effect. The system has the functions of CO concentration detection, CO concentration status display, temperature detection and temperature display. <br>The first step is to complete the preparation of the design system, find the props and materials needed for the design system, and make the design operable. Secondly, after understanding the basic knowledge such as single-chip microcomputer control technology and computer control technology and being able to use them proficiently, we can provide technical support for the system design. Finally, after having a deep understanding of the design of the system, carefully think and conceive, and constantly improve the system in combination with the actual situation, making the system more perfect and more applicable. <br>The system works stably, greatly improves the degree of automation, effectively reduces power consumption, and achieves good results. Compared with the traditional underground garage ventilation control system, it is found that the research and development results of this system have strong practical value. At the same time, the use of automatic control technology will gradually become the main direction of the development of underground garage induction ventilation systems.

This paper mainly studies how to save energy as much as possible, combined with the characteristics of underground garage, research and develop an RS-485 field bus, WITH MSP430 microcontroller as the controller of the underground garage intelligent control ventilation system. The control system can collect the environmental parameters in the underground garage and send the data to the upper machine, and then use the relay circuit to control the optimal operating time of the induced fan, so as to adjust the environmental parameters in the underground garage, so as to achieve the best energy saving effect. The system has THE functions of CO concentration detection, CO concentration status display and temperature detection, temperature display and so on.<br>First of all, to complete the preparation of the design system, to find the design system needs to use props and materials, so that the design is operable. Secondly, after understanding the basic knowledge of microcontroller control technology, computer control technology and so on, and can be used skillfully, it can provide technical support for the design of the system. Finally, after a deep understanding of the design of the system, serious thinking and conception, combined with the actual to continuously improve the system, so that the system is more perfect, more applicationable value.<br>The system works steadily, greatly improves the degree of automation, effectively reduces the consumption of electricity, and achieves good results. Compared with the traditional underground garage ventilation control system, it is found that the research and development results of this system have strong practical value. At the same time, the use of automatic control technology will gradually become the main direction of the development of underground garage induced ventilation system.

This paper mainly studies how to save energy as much as possible, combined with the characteristics of underground garage, research and develop an intelligent control ventilation system of Underground Garage Based on RS-485 field bus and MSP430 single chip microcomputer as controller. The control system can collect the environmental parameters of the underground garage, send the data to the upper computer, and then control the best operation time of the induced fan through the relay circuit, so as to adjust the environmental parameters of the underground garage, and achieve the best energy-saving effect. The system has the functions of CO concentration detection, CO concentration state display, temperature detection, temperature display, etc.<br>First of all, we need to complete the preparation of the design system, find the props and materials needed for the design system, and make the design operable. Secondly, it can provide technical support for the design of the system after knowing the basic knowledge of single-chip microcomputer control technology and computer control technology and being able to use them skillfully. Finally, after a deep understanding of the design of the system, we should carefully consider and conceive, and combine with the reality to constantly improve the system, so that the system is more perfect and more applicable.<br>The system works stably, greatly improves the degree of automation, effectively reduces the power consumption and achieves good results. Compared with the traditional ventilation control system of underground garage, it is found that the research and development results of this system have strong practical value. At the same time, the use of automatic control technology will gradually become the main direction of the development of induction ventilation system in underground garage.<br>