Abstract: For the complex road, can carry out outdoor rescue intelligent ambulance equipment less, for which we developed a so that the sick and wounded people always maintain the level of the state of the self-balancing stretcher. The working principle is through the gyroscope to detect the gravitational rigidity of the stretcher, and produce a pulse signal to drive the servo motor, the servo motor to adjust the angle to control the ambulance before and after the four directions to the level of the sick and wounded body Always keep the swing within ± 1 °. The self-balancing ambulance can work in harsh environments, perform real-time navigation and positioning, and reduce the number of injuries suffered by the sick and wounded during the rescue process.

Since the 21st century, natural disasters such as natural disasters, catastrophe accidents, public health events and social security incidents have been seriously affected, and have seriously affected human life and development. China's annual GDP losses due to public safety problems such as natural disasters, catastrophe accidents and social security are as high as 6%, and about 200,000 people have been killed. In various disasters or the scene of the accident, the road was damaged, rugged, so that ambulances can not reach the scene, the need for ambulance personnel from the scene of the accident transferred to the ambulance can reach the ambulance medical point. However, many of the sick and wounded in the rescue process, because the rescue is not handled well, resulting in secondary damage, making the efficiency of the rescue greatly reduced. How to take an effective way to avoid or even eliminate the secondary injury, has become a major problem in the rescue work. To this end we have designed and developed an all-directional self-balancing ambulance, the ambulance is a set of environmental awareness, dynamic decision-making and path planning, behavior control and implementation of a variety of functions in one integrated body. Can work in harsh environments, carry out real-time navigation and positioning, in the past to improve the lack of personnel, wounded handling bumps and posture correction, as well as handling time is too long and other ambulance shortcomings also have a positive effect. This project belongs to the intelligent and automated research of ambulance, which is the new application of intelligent control system in the field of ambulance. In Europe and the United States and other countries have been scientific research workers and environmental protection agencies generally attention. In recent years has also made some valuable results. At present, in China, although the intelligent ambulance received attention, and research and manufacturing is still in the initial stage, in this area is not yet perfect. The design, development and creation of the omnidirectional self-balancing ambulance are believed to play an active role in the field of intelligent ambulance.