| 摘要 |
A HotKnot based proximity detection method and apparatus, and a touch screen terminal are provided. The present application relates to the data communication field. The method includes: sending a proximity detection sequence to a second touch screen terminal; after the second touch screen terminal determines that the proximity detection sequence is valid, receiving a proximity response sequence fed back by the second touch screen terminal; and determining whether the proximity response sequence is valid according to signal strength of frequencies in the proximity response sequence and at least two preset signal strength thresholds, to determine whether the second touch screen terminal approaches. By means of the present invention, on the basis of a basic threshold, a quantity of sequence frequencies that require to be identified is dynamically adjusted by using multiple threshold levels according to signal strength, thereby improving performance of approach detection in a case in which at some frequencies, a signal is relatively weak or interfered with, and increasing reliability of the proximity detection. In addition, statistics on a history identification situation are further collected, and a frequency at which interference occurs is dynamically shielded according to a detection result, which can reduce the interference to a minimum. |
