A fire is a large fire that spreads causing significant damage. It is considered one of the disasters that affects public infrastructure. In fact, the MLDK market in the municipality of Masina has experienced cases of fire of unidentified origin that have caused huge losses to small traders and even, caused huge expenses of rehabilitation work for the state and some pavilions have remained unrehabilitated to this day. The objective of this article is to set up a fire detection and extinguishing system equipped with networks, thermal sensors and sprinklers to prevent fires in order to protect people and their property. In addition to the literature review, which is upstream of all the methods used, this approach was based on direct observation and experimental methods supported by a field survey. The results obtained show the interest of this project on fire detection, especially in non-working hours. Automatic fire detection and extinguishing is a very complex and delicate process, which requires appropriate and efficient equipment.

Air pollution is a major public health issue worldwide, particularly in the provincial city of Kinshasa, and environmental protection has become a duty for all governments in recent years. Global warming and air pollution are the main reasons for this. Indeed, the study of air pollution aims to understand its particularities in order to limit its effects as much as possible. To achieve this goal, we will be setting up a measurement station equipped with MQ-135 sensor networks to collect useful data and send it to a remote server. In addition to the literature review that preceded all the methods used, this approach was based on the direct observation method supported by a field survey. On the one hand, the results of this study showed that the city of Kinshasa is much more affected by the nitrogen oxide pollution emitted by industry. On the other hand, since the mission of any State is to guarantee the safety of people and their property, to help the relevant State services to have adequate technical resources for permanent monitoring of the said environments, in order to combat any possible spillover of harm. We would also like to support these services in the organization of cells to combat any nuisance, and to include a heading reserved for this purpose in state taxes. These costs continue to elude the public coffers of the city of Kinshasa, representing an enormous loss of revenue for the State.

Advances in communication and data transmission are significantly improving the use of online applications and communication with wireless devices, achieving real-time interaction with remote devices, in this environment, 5G technology allows a very great technological advance in communication means; the study aimed to find out the level of knowledge that local Internet service providers and mobile operators have of this technology, as well as the degree of its implementation and use. 5G technology represents a set of improvements over current 3G and 4G communication technologies, such as greater bandwidth, low latency, short delays, low energy consumption, enabling the implementation of smart cities, home automation and business automation, significantly improving mobile and fixed communication, all of which, combined with the use of optical fiber, will completely change the way we use the internet as a means of communication.

Air transport is one of the keys to the economic development and stability of a country. The emergence of this sector in a State depends on the radio resources implemented to ensure the safe and rapid flow of air traffic, but above all to guarantee the safety and efficiency of air navigation. It is with this in mind that the International Civil Aviation Organization «ICAO» recommends that all State bodies responsible for providing air services within the airspace of Contracting States meet the requirements of the Management of the Air Space «ATM» and the Communication, Navigation and Surveillance system in a structured approach to the effective implementation of the system called CNS/ATM. It is in this context that we subscribe to our study which aims to contribute to the process of implementation of the CNS/ATM plan by the Régie des Voies Aériennes in the airspace of the Democratic Republic of Congo. It emerges from this ICAO recommendation that our country continues to show some shortcomings, particularly in the area of full surveillance of its airspace. Thus, we are working on experimenting with radar systems for full, reliable and optimal surveillance of the country’s airspace. We have associated the current ADS-B surveillance system with other surveillance systems, primary radar «PSR» and secondary radar «SSR» to cover all regions of the airspace, and thanks to the multi-sensor function of the TOPSKY airspace surveillance, security and visualization system all surveillance data from these different systems will be merged.

This study was conducted within the Independent National Electoral Commission, which is an organization responsible for organizing elections in the Democratic Republic of Congo. Given the reactions of the population and opponents observed in 2006, 2011 and 2018 during the referendum and the elections which amounted to electoral fraud. Thus, to allow this organization to be able to properly articulate its services and provide them in a short time, we have seen fit to develop a remote electronic voting system (n-tier client-server) which, voters having in their cards an identification chip, will begin to elect their candidates by choice through a client computer in each branch of the CENI (National Independent Electoral Commission) sitting in each polling station (BVD) and the general result will be displayed in the main server based in Kinshasa at the National Processing Center (CNT) in less time thanks to the Internet network through a secure SSL (Secure Socket Layer) connection to avoid piracy of the results.