Can the remote control bomb wireless signal jamming device first detect suspicious frequencies and then block them?
In anti-terrorist operations or drill plans for handling emergencies, there is a relatively common dangerous scenario of disarming bombs, that is: after discovering suspected explosives or remote-controlled bombs, special police EOD personnel (or bomb disposal experts) need to It is very necessary to dismantle the detonation device on the spot to prevent the situation from further deteriorating and seriousness. In order to prevent terrorists from using the remote control to maliciously detonate the bomb during the process of dismantling the bomb, thereby causing irreparable harm to the bomb disposal personnel, this is very necessary. Turn on the remote-controlled bomb wireless signal jamming device at the bomb disposal site. The next question arises. In this case, can the remote-controlled bomb wireless signal jammer adopt the method of first detecting suspicious frequencies and then shielding? Or for the sake of safety and security, directly shield the bomb disposal site with full-band, indiscriminate signals?
The method of detecting suspicious frequency points mentioned here refers to a set of signal receiving and analysis devices specially used to scan and receive radio communication signals. It first receives and scans all normalized wireless communication signals in the target area. Then, continuous frequency scanning analysis is performed. Once a sudden communication frequency point or frequency is found, the alarm signal is triggered and the bomb wireless signal shielding device linked to it is activated at the same time, so as to instantly respond to the sudden communication frequency. Points for effective suppression and shielding.
From the above description, it seems that the entire operation process meets the needs of bomb disposal work. However, there is actually a huge safety hazard: the suspicious frequency goes through a process of detection and discovery, and then the alarm signal and the wireless signal to activate the bomb are The process of sending the start-up signal of the shielding device must take a certain amount of time. Although this time process may be very short, even reaching the millisecond level, there will eventually be a time difference. The key to the problem is that, Who can guarantee that in this millisecond time difference, the signal from the remote control is not enough to effectively detonate the remote control bomb? If the bomb is detonated, the consequences will be disastrous!
Moreover, as far as we know, some signal detection and signal shielding equipment in the past also has another technical hazard: if the criminals who make remote-controlled bombs have high IQs and strong enough technical skills, if the remote-control signals are sent and received, If the frequency points adopt multi-frequency points, ultra-wideband and fast frequency hopping transceiver methods, it is really impossible to ensure that this type of bomb wireless signal jammer can effectively intercept and terminate the transmission of remote control signals 100%.
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