Installation of the road crossed automatic paint detecting device in hand push-type vehicle, the system's hardware and software design, circuit board production and debugging the painting circuit and so on. At the beginning of the paper, the system whole design notion and the final capacity target are put forward. Detail technical information of module design is narrated in each chapter. At the end of paper, some suggestions for system optimization are provided. Driving type road marking machine lines coating device is able to control the spraying section (spraying gun). The hand push road cross marking machine spraying paint along the road on the existing baseline, pushing crossed marking equipment roughly along the baseline walking can not only alleviate the fatigue of the operator, but also improve the accuracy of the highway lines painting. Road marking machine is used in the high-grade highways and city roads the plan pavement striping machinery, road maintenance process is also used in the old standard online program marking. Has a wide variety of marking machine, but there are still some unresolved issues affect the promotion and use. The causes of the analysis of the problem, the following factors: the injection pressure is not enough, improper use of injection parts of marking machine control systems is imperfect. The existing marking machine draw a straight line fashion and is prone to deviate irregular phenomenon, always need to hand every stroke for some pre-mark line an adjustment, productivity and labor intensity can be imagined. Even large-scale crossed engineering, vehicle crossed, but also need the driver staring at the upcoming marking along the road all the time. It will cause great fatigue and too easy to draw the deviated coating and a waste of paint, but also affect the progress of the project. These cases primarily are due to the unperfect control mechanism. From the point of view of practical application, commonly used artificial crossed, slow, labor-intensive, already can not meet the development needs of the current situation. Road marking machine is the urgent need to develop one of the products of the highway maintenance machinery. However, based on the status of the development of China's highway, self-propelled cross coatingthe car can not work is mainly done by the hand push crossed car, therefore hand push crossed car is still a great demand. Zhengzhou Dayu Road Marking Machinery Company was set up in the year 1992. As traffic lines coating facilities supplier in China, we slao manufacture road line coating equipment and kinds of qualified traffic lines coat. Our famous products are thermoplastic machines and kinds of qualified traffic marking paint! Dayu lanes painting machine has been sell well in China and have been exported abroad for our various strict product lines, reliable product quality, considerate sales service and competitive price! For more products models and types, please check the site www.road-marking-machine.com! 1280KG