Wireless local area network interference unit and implementation method thereof
A wireless local area network and jammer technology, applied in the direction of communication interference, electrical components, etc., can solve the problems of low openness of the chip, difficulty in achieving complete control of the wireless transceiver chip, and difficulty in controlling the wireless transceiver chip to send interference signals, etc. , to achieve the effect of increasing the frame error rate
Inactive Publication Date: 2013-04-17
SHANGHAI INTERNET OF THINGS +1
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Problems solved by technology
However, the openness of the wireless transceiver chip conforming to IEEE802.11b / g / n standard is relatively low, and it is difficult for the outside to fully control the wireless transceiver chip
Specifically, in the first method above, it is difficult to control the wireless transceiver chip to continuously send interference signals; in the second method above, it is difficult to control the wireless transceiver chip to send appropriate interference signals at an appropriate time
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[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] see figure 1 In the working scene of the WLAN jammer shown, the WLAN jammer is placed at a certain distance from the interfered device, and the interfered device can be a wireless access point (Access Point) or a common WLAN receiving device. When no interference is implemented, the WLAN jammer can receive the WLAN frame sent by the interfered device, and continuously send corresponding interference signals to the interfered device at an appropriate time.
[0031] In the IEEE 802.11b / g / n network, the basic structure network (Infrastructure WLAN) is the most common way to build a wireless local area network. In this type of network, the wireless access point is the central device, and the communication between any stations needs to be forwarded or processed by the wireless access point. Therefore, when interfering with the inf...
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The invention discloses a wireless local area network interference unit and an implementation method thereof. The wireless local area network interference unit comprises a processor, a wireless local area network transceiver, an IEEE 802.15.4 transceiver, a radiofrequency power amplifier, a wireless local area network monitoring antenna and an interference signal transmitting antenna. A wireless local area network to be interfered is monitored and analyzed, so that basic information of a current wireless local area network is determined; and the transmitting power and the central frequency of an interference signal are set correspondingly, and the frame error ratio of wireless local area network receiving equipment is increased through transmission of the interference signal, so that the effect of interfering normal communication is achieved.
Description
technical field [0001] The present invention relates to a device and a method for interfering with wireless local area network communication, in particular to a wireless local area network jammer and a wireless local area network jammer that monitors and analyzes wireless channels and increases the frame error rate of wireless local area network receiving devices by transmitting interference signals, thereby achieving interference effects. The realization method belongs to the technical field of wireless communication security. Background technique [0002] With the rapid development of wireless communication technology, the use of wireless local area network (WLAN) has become widespread. While wireless communication brings convenience to people, it also poses new challenges to communication security and confidentiality. In recent years, there have been many illegal acts such as eavesdropping, leaking secrets, and cheating in the examination room by using wireless LAN in ou...
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Inventor 裴旭明钱骅康凯
Owner SHANGHAI INTERNET OF THINGS