Detection for Dangerous Goods Vehicles in Expressway Service Station Based on Surveillance Videos

To improve the safety capabilities of expressway service stations, this study proposes a method for detecting dangerous goods vehicles based on surveillance videos. The information collection devices used in this method are the surveillance cameras that already exist in service stations, which allows for the automatic detection and position recognition of dangerous goods vehicles without changing the installation of the monitoring equipment. The process of this method is as follows. First, we draw an aerial view image of the service station to use as the background model. Then, we use inverse perspective mapping to process each surveillance video and stitch these videos with the background model to build an aerial view surveillance model of the service station. Next, we use a convolutional neural network to detect dangerous goods vehicles from the original images. Finally, we mark the detection result in the aerial view surveillance model and then use that model to monitor the service station in real time. Experiments show that our aerial view surveillance model can achieve the real-time detection of dangerous goods vehicles in the main areas of the service station, thereby effectively reducing the workload of the monitoring personnel.

Effectiveness of 3P Implementation (People, Process, Physical Evidence) And Company Performance At Different Levels Of Complexity And Divergence

The aim of this research is to know the differences of the level of complexity and divergence, the different effektiveness of 3P’s and the performance of two workshops (an authorized service station of motorcycle and an unauthorized one). The techniques used to collect data were: 1) interview, to know the general map of the company, 2) questionaires, to know data of complexity and divergence of the company, scores of perception concerning the effectiveness of 3P’s, 3) documentation, to know the daily total numbers of service within a year. The data analysing techniques used were ; the different percentage test use to know the different of level the complexity and divergence, the U Mann-Whitney Test used to know the different of 3P’s effectiveness and performances. The research found that : 1) there was a different of the level of complexity and divergence between an authorized service station of motorcycle and the unauthorized one. In the level of the different of complexity was 16,67%, the authorized service station has relatively higher level of complexity than unauthorized one. For this level of divergence is 10% and the authorized service station has relatively lower level of divergence than unauthorized one. 2) there was no different of 3P’s effectiveness between both service stations, at the variable people there was no diferent with z=-0,225 (p>0,05) and at the variable process there was no diferent with z=-0,122 (p>0,05) then at the variable physical evidence there was no diferent with z=-0,160 (p>0,05). 3) there was a different performance between an authorized service station and an unauthorized one. As specialy in giving minor service between the authorized service station and the unauthorized one namely z =-6,10 (p<0,05) and for the medium service, z = -6,786 (p<0,05) while for the major service,z = - 6,675 (p<0,05) and for the whole service between the authorized service station and unauthorized one the diferent was z = - 6,675 (p<0,05), but the authorized service station had much higher performance level than the unauthorized one in each service and doing full service.

Influence of a maintenance station on atmosphere state

Problem. Automobile transport has a huge negative influence on the environment, not only during using, but also during its service. Goal: to analyze the influence on the atmosphere of the work of car service stations. Methodology: The calculation of atmospheric emissions during the operation of the main production units was carried out according to the standard method. Gas analysis was carried out using an OKCI-5M-5H gas analyzer. Originality: Calculated amounts of emissions of major pollutants, which are formed during the operation of internal combustion engines and during the operation of the main units of the station, determined the amount of pollution from decentralized space heating. Recommendations for reducing the amount of pollutants and the negative influence of stations on the environment within the city are proposed. Practical value. When liquefied gas is used as a combustible gas, emissions of pollutants into the atmosphere are noticeably reduced both in quantitative terms and in qualitative composition. At the same time, the emissions of methane and sulfur oxides decrease by half. There is a significant decrease in carbon monoxide and nitrogen oxide (II) emissions. Analysis of the data obtained shows that when wood is used as a fuel, there are no emissions of sulfur oxides, but the amount of nitrogen and carbon oxides is higher. Particulate matter emissions are not significantly dependent on the type of fuel. During the operation of the service station, the largest amount of gaseous emissions into the atmosphere occurs in the service box of the internal combustion engine. In general, during the operation of a car service station, a significant amount of harmful substances is not added to the atmosphere.