Core contents of the standard: First, functional requirements specification, clarifying that the touch screen must have four basic functions: floor selection, door opening and closing control, emergency call, and status display, and optionally support extended functions such as voice interaction, face recognition, barrier-free mode, and multi-language switching; Second, performance index requirements, touch response time ≤0.2s, operation accuracy ≥99.9%, screen resolution not less than 720P, service life ≥50,000 hours, supporting wide temperature environment operation of -10℃~60℃; Third, safety protection design, must have anti-mistouch function, redundant design of physical keys for emergency operation, power-off data non-loss function, and electrical safety complies with GB 7588 standard requirements; Fourth, environmental adaptability, clarifying the test requirements of anti-vibration, anti-electromagnetic interference, waterproof and dustproof, high and low temperature resistance, adapting to the complex operating environment in elevator shafts and cars; Fifth, test methods and acceptance, unifying the methods and judgment standards of function test, performance test, environmental adaptability test and durability test, providing a unified basis for product R&D, production and acceptance.