Previously, there was a saying among consumers that "the bigger the central control screen, the stronger the electromagnetic radiation". According to the evaluation of China automobile health index this year and previous years, the low-frequency magnetic field radiation in the central control large screen area is the noise level of measuring equipment, and the screen size has no obvious relationship with the low-frequency magnetic field radiation. Car companies can effectively control electromagnetic radiation at a low level through strict design and test control of related parts. Generally speaking, all the models in the EMR plate perform well, and the only weakness is the testing under communication conditions. In last year's evaluation, the scoring rate of vehicles under communication conditions was 43.65%. In the evaluation in 2020, the scoring rate was 46.75%, and the improvement was not obvious.
Summary of EMR plate: At present, in the EMR plate, China automobile health index has completed the evaluation of 25 models, of which * * * is divided into four plates: uniform working condition, rapid acceleration working condition, rapid deceleration working condition and communication working condition. In the links of uniform speed, rapid acceleration and rapid deceleration, the tested models all performed well and scored high, but the test of communication conditions is a shortcoming of many models. However, there are still high-scoring models and full-score models in this sector. This also shows that it is not difficult to reduce electromagnetic radiation under communication conditions. What is difficult is whether car companies pay attention to it.
Judging from the overall evaluation results of EMR plate, the five-star rate of the first batch of evaluation models in 2020 is 80%. Compared with 60% models evaluated in 20 19, the five-star rate has improved. This shows that the control of electromagnetic radiation by car companies is effective through reasonable design and control, but considering the low score rate of communication conditions, car companies need to continue to optimize and improve.