Boundary control method, system thereof, low frequency positioner and identification card

Abstract

The invention discloses a boundary control method, a system thereof, a low frequency positioner and an identification card. The boundary control method comprises the following steps: the identification card provided on a supervised object identifies whether the identification card enters into a boundary area scope or not according to whether inductive electromotive force is generated or not, and the boundary area scope is a magnetic field scope generated by the low frequency positioner; according to an identification result, when entering into the boundary area scope, the identification card sends a report message of entering into a boundary area to a high frequency base station, and the report message comprises card identification information which only identifies the identification card; the high frequency base station forwards the report message to a control center, so that the control center generates alarm information that the identification card enters into the boundary area scope. According to an embodiment of the invention, specific personnel or article is effectively controlled to enter into or leave a specific area, and effective supervision of the specific personnel or article is realized.

Description

technical field [0001] The invention relates to communication technology, in particular to a border control method and system, a low-frequency locator and an identification card. Background technique [0002] In practical applications, regional control is often required. For example: in the hospital, in order to prevent the loss of newborn babies and accidents when patients go out of the medical area, it is necessary to restrict the newborn babies and patients from going out of the specific area of ​​the hospital by themselves; in the monitoring center, it is necessary to monitor the mental patients and Alzheimer's patients , to prevent them from going out of the guardianship center to have accidents; in prisons, it is necessary to supervise the detainees to prevent detainees from escaping from prison. At present, the following methods are mainly used to control the entry and exit of personnel in specific areas: [0003] One method is to set up roadblocks, railings, signag...

AI Technical Summary

Problems solved by technology

This method cannot prevent malicious destruction of roadblocks and railings crossing the border of the area, and cannot automatically alarm when people enter and exit the border of the area, and cannot really realize the supervision of specific personnel;

[0004] Another method is to use infrared, radar, vibration sensing, etc. to control the border of a specific area. When the radar detects an object at the border of a specific area, it will automatically alarm, but when the radar detects any person or object, it will alarm. Effectively distinguish the supervised objects, it is easy to cause false alarms, and it is impossible to achieve effective supervision of specific personnel or items;

[0005] Another method is to use image recognition technology to control the border of a specific area, pre-enter the image of the object to be supervised in the database, and use monitoring to monitor the border of the specific area. When someone or something reaches the border of the specific area, collect Its images are compared with the images in the database one by one, and an alarm is issued when the comparison results are consistent. However, this method is greatly affected by the environment. In dark night environments with poor visibility, such as: foggy days, rainy days, In snowy weather, etc., it is impossible to effectively collect images of people and objects reaching the boundaries of specific areas, so that it is impossible to compare their images with those in the database. Effective supervision of specific persons or objects

[0006] Therefore, using the methods of the above-mentioned prior art, it is impossible to control the entry and exit of personnel in a specific area, and it is impossible to achieve effective supervision of specific personnel or objects.

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