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| Brand Name: | WSD |
| Model Number: | WSD-QK-01 |
| MOQ: | 1 |
| Price: | negotiable |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 20 |
1. Product Overview:
A non-lethal and technical control equipment designed for law enforcement departments, which is used to carry out rapid and compulsory communication intervention and information transmission to specific areas of people at the scene of illegal assembly, procession, gathering and other public emergencies, so as to restore and maintain order.
2. Core scenarios:
Sudden and mass illegal assembly and gathering activities.
3. functional module
(1) Signal coverage and suppression:
After the device is started, a strong signal coverage area is formed in a specific area (such as a square or street), and the signal strength is much higher than that of the surrounding operator base station. The mobile terminal entering this area will try to connect to the pseudo base station first.
(2) signaling hijacking and connections:
The device is disguised as a legitimate base station (but because it has more power, the phone connects first) and establishes a temporary communication connection with the phone within range.This process does not require user authorization and is the basic mechanism of cellular networks.
(3) SMS message delivery (similar to community broadcast):
The device uses the cell Broadcast SMS (CBS) or similar signaling channel in the cellular network to deliver a broadcast message of the highest priority to all connected mobile phones.
The message is displayed as a pop-up on the phone screen, covering all current operation interfaces, and requires the user to manually confirm to close (other functions cannot be operated).
Example of text message content:
[Important Notice] You are currently in an illegal gathering site. Please evacuate immediately! Staying at the site may lead to legal liability. Do not believe or spread rumors. All information is subject to official release.
(4) Communication blocking mechanism:
During the sending of pop-up window: the mobile phone system resources are occupied by the high-priority process, and users cannot make calls, use wechat, take photos, etc., realizing the temporary soft control of "unable to operate normally".
Optional persistent blocking: The device can continue to send interference signals or send specific signals, so that mobile phones in the area cannot register to the normal network, and achieve a comprehensive interruption of calls, SMS and data.
4. Product value
(1) Targeted information delivery: break down information barriers and deliver official authoritative voice.
(2) Instant behavioral intervention: disrupt the communication and coordination plans of illegal organizers.
(3) Non-contact control: to a certain extent, it reduces the risk of direct physical conflict between law enforcement personnel and gathered people.