Underground garage

　　Nowadays, many residential communities and shopping malls have underground parking lots, which not only saves land area, but also facilitates daily management. But this kind of area as a kind of underground space, the owners stay here for a short time, the level of operation management is relatively low. A common problem is poor air quality in underground garages, mainly manifested as excessive concentrations of carbon monoxide (CO) and carbon dioxide (CO2). Carbon monoxide pollution After the car into the garage, mainly in slow, idle and reverse state.

　　The level of operation management is relatively low. A common problem is poor air quality in underground garages, mainly in the form of excessive concentrations of carbon monoxide (CO) and carbon dioxide (CO 2)。

　　Carbon monoxide pollution

　　After the car enters the garage, it is mainly in slow speed, idle speed and reverse. At this time, the engine will increase carbon monoxide emission due to incomplete combustion under non-rated operating conditions. Carbon monoxide gas will hinder the combination of hemoglobin and oxygen in the human blood, hinder the oxygen delivery function of various tissues in the body, causing hypoxia. In severe cases of carbon monoxide poisoning, lethargy and convulsions may occur, leading to death. Long-term exposure to CO at low levels is also hazardous to health, especially to the nervous system and cardiovascular system.

　　Carbon dioxide pollution

　　Garages can also be a source of carbon dioxide pollution, especially when the car's occupants are waiting for the engine to turn off. According to relevant tests, if two people stay in a car, it will reach 2500ppm within 10 minutes, which is 2.5 times the indoor carbon dioxide standard. When carbon dioxide pollution is severe, people will experience headaches, tinnitus, general weakness and other symptoms, and even acute poisoning resulting in death.

　　In addition, motor vehicles emit nitrogen oxides, sulfur dioxide, hydrocarbons, TVOC and other harmful gases. In the face of the operation cost and actual use demand of underground garage, it is an effective management mode in the future to realize dynamic environment monitoring by using digital management means of Internet of Things.

　　Through the carbon monoxide sensor and carbon dioxide sensor in the online monitoring system, the parameters in the garage can be monitored in real time, so as to find out whether there is environmental pollution in the peak of the use of the garage, and then take ventilation measures。

　　Related product link：

　　PID photoion sensor，Electrochemical carbon monoxide、oxygen、Sulfur dioxide、Nitrogen dioxide，Industrial electrochemical module