Shenhao started after the college entrance examination

An Liang noticed the details of the video screen changing into an infrared thermal radiation detection image, because this was the first perspective of the military version of the flying motorcycle, which meant that this video should be the video released by the owner of the military version of the flying motorcycle.

An Liang continued to check the video on Avora's mobile phone. The military version of the flying motorcycle in the video detected humans on the ground through infrared thermal radiation detectors and began to lower its altitude.

When the military version of the flying motorcycle descended to an altitude of almost 100 meters, it stopped descending. Then the video showed the military version of the flying motorcycle shouting at high altitude, and multilingual subtitles and narration explanations appeared.

"This is beep beep beep, you are close to our border, please leave immediately!"

An Liang couldn't help but smile when he heard the expressive noise reduction processing.

The subtitle narration introduced the corresponding information:

‘The drone is equipped with a high-power speaker with a maximum sound pressure level of 130 decibels, which ensures that ground personnel can still hear a warning of 90 decibels at an altitude of 100 meters. '

The maximum sound pressure level of 130 decibels means that the volume is 130 decibels at a distance of 1 meter from the sound source.

Sound propagates in the air with loss. If it is one meter away from the sound source, it is 130 decibels. When it is 2 meters away, the sound is 124 decibels. When it is 4 meters, it is 118 decibels. When it is 8 meters away, it is 112 decibels.

When the distance doubles, the volume attenuation is 6 decibels.

Therefore, at an altitude of 100 meters, a high-power speaker with a maximum sound pressure level of 130 decibels can still retain a loud warning sound of 90 decibels.

A volume of 90 decibels is already very loud, equivalent to a noisy bar.

Even in downtown areas, it is actually only 70 decibels.

So among the high mountains, the volume of 90 decibels is quite loud.

The video continues to play, when the military version of the flying motorcycle...According to the video, it should be a military drone?

In fact, [flying motorcycle] and [drone] are just a matter of name.

According to the definition of Dream Future Graphene Technology Group, it must be a flying motorcycle, because by definition it is an ordinary means of transportation.

If it is defined as a drone, then the flying motorcycle will have many restrictions.

Following the warning from the military version of the flying motorcycle, the video switched to the picture of the infrared thermal radiation detector, showing that the humans on the ground were very panicked and began to flee backwards.

The military version of the flying motorcycle chased in the sky for a moment, and then quickly descended to a height just above the treetops.

Subtitle narration once again displays explanatory information

‘The drone is equipped with an advanced optical image recognition system and radar detection system, allowing it to fly at ultra-low altitudes and avoid radar scanning. '

Faced with the narration information, An Liang was not surprised, because both the luxury version of the third-generation flying motorcycle and the multi-passenger version of the flying motorcycle can realize this function.

The end of the video is still the infrared heat radiation detector screen, showing the infrared heat radiation images of more than a dozen humans fading away, and then a line of subtitles is displayed.

‘Protecting our country is everyone’s responsibility! '

After the video was played, An Liang pushed Aphra La's phone over, and he asked casually,"What's going on?"

Avro La didn't answer immediately. She just looked at An Liang, as if she wanted to tell whether An Liang was Lying.

An Liang looked at Aurora calmly. He really didn't know the situation of this video, because An Liang mainly focused on overseas areas.

"You really don't know?"Aflora repeated the question again.

An Liang shook his head in the negative,"I really don't know."

"This video is a patrol video released by your border defense force. This drone is a military version based on your third-generation drone technology and uses your group’s graphene batteries."Aphrola explained.

Most of the graphene lithium-ion battery production capacity of Dream Future Graphene Technology Group has been given to the Xia State Military. Dream Future Graphene Technology Group has a deep cooperative relationship with the military. An Liang knew before that the military was Develop a military version of the flying motorcycle.

Not only that, the military is also involved in the development of the Guardian prosthetic frame. The military hopes to build the Guardian prosthetic frame into an exoskeleton combat system, but judging from the current energy density of graphene lithium-ion batteries , it is basically impossible

"Do you want a military version of the technology? An Liang asked.

Avora nodded affirmatively,"Yes, we want the technology of the military version of the drone."

An Liang shook his head,"Do you think I can make the decision on this matter?""

"Although you can't make the decision, you can influence the final outcome."Aphroela responded

"Mr. An, we fully respect your request. If you want to use Xia Guoyuan for settlement in oil transactions, we will use Xia Guoyuan for settlement according to your request. Under the premise of such cooperation, we also hope to get your help."Aflora added

"Mr. An, are you willing to help us?"Aphrola made a little womanly gesture.