Battlefield Contractor

"But I am afraid that any conventional monitoring method cannot meet our current requirements." Sergey shook his head.

"In contrast, the most secure is the micro drone. We also have two MAV micro drones that we got from the military before." Sausage replied.

MAV should be classified as nano-aircraft. Nano-aircraft generally refers to aircraft with a size between 1 μm and 1 nm or less than 1 nm. Some experts also refer to aircraft with a size of about 10 cm as nano-aircraft in general.

After the United States has passed the special aerodynamic requirements and technical feasibility studies required by MAV, the relevant parameters of MAV are generally defined as length, width, and height below 15cm, mass between 10g and 500g, and the best use height in the range of 45-60m. , The maximum range is 150m, the flight speed is 10-20m/s, the maximum range is about 10km, and the maximum endurance time is more than 2h.

However, some people classify unmanned aerial vehicles with a wingspan or body diameter of less than 60cm as MAV.

The two MAV unmanned aerial vehicles of Sausage weigh more than 30 grams and are very small. It can fly autonomously, using a light-weight, low-power GPS receiver, a low-drift miniature gyroscope and accelerometer, and it can also use a geographic information system to provide topographic map navigation.

Although it is very convenient to use, I am afraid it can only be used at night, and it is still easy to spot during the day.

Another problem is the communication method. The micro drone needs to maintain the communication link between it and the operator.

Due to the limitation of volume and weight, only microwave communication can be used at present. Although microwaves can transmit large amounts of data and are sufficient for live TV broadcasts, they cannot penetrate walls, so they can only be used within line of sight.

The small size of the micro drone limits the radio frequency and communication distance. When the microcomputer flies out of line of sight or the line of sight is blocked, an aerial communication relay station is required, which can be another aircraft or satellite.

Lin Rui turned his head to the large billboard in the distance, "We can use it as a communication relay station. This way we can operate at a greater distance."

"I think it is possible, but all operations must be carried out at night. During the day, it is definitely not possible. Even a micro drone with only 30 grams can be easily spotted during the day." Sausage nodded.

"Then follow this method and use one of the two micro-UAVs to perform surveillance tasks, and the other will find a way to land on the large billboard as a signal relay station.

Get acquainted with the terrain and start to move tonight. Lin Rui nodded.

That night, they parked the car on the side of the road. The sausage is operated on a mobile computer in the car.

Military micro drones. The maneuverability was first-rate, and one of the drones was quickly parked on a large billboard on a high **** by the river.

"The communication test shows that the relay drone has good communication performance. The reconnaissance drone starts to start, there is no problem in receiving the signal, and the signal picture is clear and stable." Sausage whispered while operating the computer.

"No threat was found near the target's house, wait..." Sergey suddenly whispered in the communication channel.

"What's the matter? The reconnaissance drone is in place and is about to approach the target building. What is going on?" Lin Rui asked in a low voice.

"The situation is not quite right, the boss had better stop the drone, find a place to land or hover in the air, and stop approaching the target building." Sergey whispered.

"Sausage, stop approaching the target building, Sergey found an abnormal situation. First recall the micro drone." Lin Rui ordered immediately.

"Boss, I'm almost close to the target building. The straight-line distance from the target building is only 20 meters. Are you sure you want me to do this?" Sausage turned his head.

"I'll come back first." Lin Rui made a decisive decision.

In desperation, Sausage can only use the mobile computer to recall the reconnaissance drone. However, he did not fully recall, but used the reconnaissance drone. It also landed on a large billboard high up.

"Russian, what did you find?" Sausage couldn't help but whispered.

"I'm not sure, but I suspect that the target building may have signal jamming devices." Sergey replied.

"Signal jamming device? Which one?" Sausage asked immediately.

Sergey replied, "It may be a communication signal, because I just saw a bodyguard walk out of it and started to call a long distance away.

And I noticed that he kept raising his cell phone, as if looking for a cell phone signal.

So I suspect that the target building is probably installed with some kind of signal jamming device. As a result, the target building has become a kind of signal restricted zone.

So the bodyguard was forced to leave the target building and walk far outside to make a call.

It is very likely that it is some kind of wireless interference device. If this interference can also interfere with the microwave signal smoothly, your drone will lose connection due to signal interference after entering the villa.

It may even fall in the yard of the target building. Once discovered by those bodyguards, our trouble would be big.

Those bodyguards are all experts. Once they find the drone, our entire operation may be exposed. "

"Damn, what should I do now?" Lin Rui asked in a low voice.

"I have to find a way to get close to the target building and try to see if there is a problem with the signal." Sergey lowered his voice.

"Be careful, don't get too close. The two bodyguards are still around the building." Lin Rui responded.

"Understood. I will switch the communicator mode to microwave mode. If I can't receive the signal smoothly after I walk over, then the drone can't be used." Sergey got off a car and walked away. Target building.

Lin Rui turned his head to look at Kuaima helplessly, "Communication signal interference, have you encountered this kind of thing before?"

"Rarely. But it is not uncommon. In some confidential units, in order to restrict communication, such communication signal interference methods are often used.

Makes normal communication signals unable to be transmitted. This technology is not new, and the CIA has been applying it very early.

This Bolt is engaged in secret research work, and it is very likely that for reasons of confidentiality, his residence has become an information barrier.

From the inside and outside, it is impossible to use mobile phones for wireless communication. Communication can only be done through fixed telephones. The fixed telephone communication is very easy to find.

Confidentiality and security are also better than wireless signals. If this is the case, it means that this guy's vigilance is really extraordinary. "Quick horse whispered.

"It's better not to be like this. Otherwise, my deployment today is all in vain." Sausage shook his head.

"Shut up, let's see how the Russian tested it. I hope our luck will not be so bad." Lin Rui sighed.