1, equipment parameters: the identification in the fingerprint machine is divided into security levels, generally divided into five levels, and there are more advanced settings. Let's see if you changed this setting while operating. At present, the civil grade on the market is 4, and if it is adjusted to 3-2- 1, it will cause the problem of high misidentification rate. (The so-called false recognition rate refers to the probability that A's fingerprint is mistaken for B when comparing and recognizing the fingerprints of the same group of people. The lower the security level, the lower the false recognition rate, which is a pair of opposite parameters)
2. There is something wrong with the hardware and the fingerprint acquisition head, and the light accuracy of the general fingerprint acquisition head needs to be adjusted. If it is used for a long time, the focal length adjusted at the factory will be problematic and the fingerprint will be distorted. Therefore, there are problems such as unrecognizable and high error rate. If yes, it is recommended to send it to the manufacturer for repair.
3. You can back up the fingerprint information and related data information in the software before sending it to the manufacturer for maintenance, and then send it to maintenance.
Beijing Baijiaan Technology Co., Ltd. provides the answer.