Self-platform elevators are a type of transport system used to transport people and loads between different levels, especially inside or outside the building. These elevators typically rely on a system of elevators that travel on a platform or cabin.

Basically, self-platform elevators have the following components:

1. **Platform or cabin**: The area where people or cargo are transported. This platform is usually made of high-strength materials and can be of the required dimensions.

2. **Lifting mechanism**: The mechanism that moves the platform or cabin up or down. This mechanism can be hydraulic, electric or pneumatic and is usually located inside the elevator shaft.

3. **Safety measures**: There are various safety systems and measures such as emergency stop buttons to ensure safe transportation of the platform or cabin.

4. **Control system**: The system that controls the movement of the elevator. This system usually includes a set of sensors, control panels and management units.

Self-platform elevators are used to provide access to different levels within the building, especially for disabled people and wheelchair users. They can also be used in industrial applications such as material handling and unloading. Such elevators are usually designed and installed in accordance with specific regulations and standards to increase functionality and ensure safety.