A band signal jamming system

Abstract

The invention relates to a waveband signal interference system, the system can be used to realize signal interference within a large-area multi-point range, broadband signal interference, wide interference range, remote real-time intelligent monitoring and self check of the system. The signal interference system comprises a host master control part (1), a wireless network bridge (2), a main wireless AP (5), multiple auxiliary wireless APs (6) and interference devices (7); the wireless network bridge (2) comprises a network bridge end A (3) and a network bridge end B (4); and after that the host master control part (1) sends a control instruction, the control instruction is sent to the interference devices (7) via the wireless network bridge (2) and the wireless APs, a microprocessor (11) in each interference device receives the control instruction of the host master control part (1) via a WIFI antenna (8) and a wireless module (9), and then configures a first interference signals source (12) and a second interference signal source (13) according to requirements of the instruction, and interference is realized.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a band signal interference system. It can be applied to signal interference in a large area. Background technique [0002] From the perspective of the development requirements of modern society, ensuring the security of oneself and the country is the premise of social development, and information security, as a key link in building a security environment for oneself and the country, has been paid more and more attention by the state and society. Therefore, in many environments, interference devices are used to interfere with signals in a certain band, so as to achieve the safety protection of signals in the environment. [0003] At present, the interference band of the existing interference system is between 800MHz-2.2GHz, and the interference objects are the downlink signals of 2G\3G\4G mobile phones. Purpose. However, taking the exam as an example, this typ...

AI Technical Summary

Problems solved by technology

[0004] 1. The cheating methods in the examination room are mainly digital transmission information (such as SMS eraser) and voice information (such as rice earphones) with a frequency of less than 800MHz, and WIFI signals with a frequency of 2.4G. The existing jammers cannot play a shielding effect and are prone to Cheating

[0005] 2. The output power of existing jammers is generally 25dBm, and the coverage is limited. Therefore, the "one room, one jammer" jamming mode in which one classroom is equipped with one jamming device is used in the test

In a large-scale examination like the college entrance examination, there are tens of thousands of examination rooms in an urban area, and tens of thousands of interference devices need to be equipped. The storage and transportation of these interference devices increase the difficulty of the work of the invigilator center and the examination staff.

[0006] 3. In the traditional "one room, one" jamming mode, due to uncontrollable reasons such as jammer batches, workmanship, and transportation, it is difficult to guarantee the qualified rate of jammers. In addition, the currently used jamming systems do not have self-checking functions, which makes the test The staff or the invigilation center cannot judge whether the equipment is working normally, which makes some classrooms fail to meet the test requirements, which affects the fairness and seriousness of the test

[0007] 4. Once the existing interference equipment is manufactured, the interference band and mode have been fixed. When working, it will interfere with all signals in the corresponding band and cannot be configured

In this way, during the test, if the communication frequency of the communication equipment used by the test staff is within the interference range of the jammer (such as: point-to-point communication equipment), it will also fail

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