Reminding method and apparatus, device and storage medium

Abstract

The invention discloses a reminding method and apparatus, a device and a storage medium. The method comprises the following steps: when an object image is obtained, judging whether the object image isan an image corresponding to a human body or a parcel with a distance from the human body less than a preset distance; if so, transmitting a terahertz magnetic wave signal; determining identity information of an obstacle according to received echo data fed back by the obstacle; and if the identity information of the obstacle is a dangerous product, sending reminding information to a police terminal. By adoption of the technical scheme provided by the invention, non-sensing detection and early warning can be performed on dangerous products hidden in the human body in an open area can be achieved, thereby improving the automatic detection rate of dangerous products carried by non-cooperative target people.

Description

technical field [0001] The embodiments of the present invention relate to computer technology, and in particular to a reminder method, device, equipment and storage medium. Background technique [0002] At present, non-cooperative target groups cannot detect hidden dangerous goods without perception. In the context of large crowds, it is difficult to determine whether the target group is carrying dangerous goods or whether they are dangerous people. At the same time, non-cooperative target security checks are repetitive, labor-intensive, and The characteristics of high security cost and high risk cannot take into account and solve the worldwide problems of "service" and "safety". [0003] At present, non-contact human body security inspection technologies include metal detection gates, micro-dose X-ray imaging, X-ray flying spot scanning backscatter imaging, millimeter wave imaging, and passive terahertz imaging. Among them, metal detection gates cannot detect non-metallic ...

AI Technical Summary

Problems solved by technology

Among them, metal detection gates cannot detect non-metallic contraband, such as ceramic knives, plastic guns and deadly explosives. At the same time, metal detection false alarms are high, and manual supplementary hand-held metal detectors are required for re-examination. The security inspection efficiency is low and the labor intensity is high. ; Micro-dose X-ray imaging technology and X-ray flying spot scanning backscatter imaging technology have good imaging quality, but there is a risk of ionizing radiation damage to the human body; although millimeter-wave imaging technology has no ionizing radiation, the highest detection rate of automatic identification is only 85%. Manual supplementary re-inspection is also required. Due to the limitation of resolution, the imaging quality is difficult to meet the requirements; the passive terahertz imaging security inspection has a simple structure, no radiation, no contact, and no stay, but it cannot be used outdoors. High environmental requirements

[0004] The above-mentioned non-contact human body security inspection technologies all need to carry out coordinated security inspections in fixed security inspection channels, and at the same time need to be accompanied by "body search" inspections, which are not only inefficient but also suspected of violating privacy

At the same time, it is necessary to be equipped with a corresponding software system and supplemented manually to identify and process the original image of the dangerous goods in the background, then mark the location of the dangerous goods carried by the human body, and then transmit the result to the front display terminal, so that the front desk staff Real-time viewing of flat images without any human features, which has a complex structure, high cost, and mediocre detection results

Images