Communication method for self-adaptive data transfer in master-slave communication

Abstract

The invention discloses a communication method for self-adaptive data transfer rate in communication of a master-slave device of an electrical device used for medical treatment. The method comprises the following steps of: accessing each monitoring module in sequence by a master end CPU, recording the communicating state, automatically adjusting into high access frequency for a slave end with large data quantity so as to lead the data to be transmitted in time and automatically reducing the access speed for the low-speed slave end with low data quantity, thus leading the master end and the slave end to realize self-adaptive communication of data transfer rate, improving the efficiency of communication of the master end, simultaneously guaranteeing timely communication to different slave ends and achieving maximum data transfer rate; and the resources of the master device and the resources of a communication bus are used in the most needing places, thus greatly improving high real-timeand high reliability required by medical instruments.

Description

technical field [0001] The invention relates to a communication method for adaptive data transmission rate in the master-slave device communication of medical electrical equipment. Background technique [0002] In medical electrical equipment, communication between equipment is very frequent and popular. Even within the equipment, there are frequent communications between functional modules. As a kind of special-purpose equipment, medical electrical equipment also has its own special requirements for communication, which are mainly manifested in high reliability and high real-time. [0003] The multi-parameter patient monitor is an important medical electrical equipment widely used in hospitals. Its function is to collect and process the patient's vital sign parameters through various physiological parameter modules, display them on the display screen in time, and monitor the parameters. Carry out automatic judgment, and report to the medical staff in time for abnormal sign...

AI Technical Summary

Problems solved by technology

[0004] At present, the communication method between the module and the main CPU in the multi-parameter patient monitor is: the main CPU visits each module in turn at a fixed time interval, does not distinguish between modules, and the module with a small amount of data and the module with a large amount of data The modules are all the same. The disadvantage is that modules with large data volume cannot transmit data in time, while modules with small data volume are accessed too frequently, which wastes the time of the main CPU.

Images