軍武

DJI根本第三行星泛用無人機

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DroneDefender

https://www.battelle.org/government-offerings/national-security/payloads-platforms-controls/counter-uas-technologies/dronedefender

這個就和官網造型差很多了

專用禁止標誌

>>1049388

呼んだ？

https://borgcollective.fandom.com/wiki/Borg_Drone

Borg_Drone

>>1049382

Jedi头脑把戏。

https://arstechnica.com/information-technology/2016/05/dronebuster-will-let-you-point-and-shoot-command-hacks-at-pesky-drones/

2016/05/20

Powered by a small backpack, DroneDefender looks like some futuristic over-under, radio-frequency shotgun-grenade launcher.
Targeted through a simple optical sight, the device has a range of about 400 meters.
Battelle calls it a "directed RF energy weapon" - it sends out a jamming signal in the Industrial, Scientific and Medical (ISM) bands or global positioning bands in a 30-degree cone around the point of aim.

But a new version being developed by Flex Force operates completely within FCC regulations, though depending on what kind of drone is targeted, the new device may require an FCC license.
Instead of jamming C&C signals, the new Dronebuster exploits weaknesses in the drone communications protocols themselves, enabling the Dronebuster's operator to trigger the "fly home" command on some drones and the "land" command on others.
It does so by cycling through command sets for various drone systems.

>>1049390

那個單字原本的意思是雄蜂或是嗡嗡聲阿
為什麼會變成無人機的意思

>>1049392

所以就是不斷傳送各種指令總有一個可以用的這樣

>>1049393

https://www.merriam-webster.com/words-at-play/how-did-drones-get-their-name

The word "drone" was first used of an unmanned aerial vehicle in 1946, but advances in drone technology in the past few years have made the term much more common.
And while they may have no mind of their own, they may soon be connected to yours, as this BBC story about drones that can be controlled by brainwaves shows.

>>1049392
我對無人機沒研究
控制器和無人機之間沒有做驗證或加密之類的嗎?
這樣不就很容易被蓋台攻擊?

>>1049398
商用無人機即使有加密也不會太難啦
大不了買個同型機，把所有訊號模式錄下來就好了

>>1049382
許多無人機有安全設計,當失去飛行或導航所需要的參考信號時會嘗試自動返航或降落,以免客戶三不五時就損失一架貴桑桑的無人機.

干擾機只要搞到能阻斷無人機所需的信號讓他進入類似的安全模式就可以了.

>>1049398
這不是加密與否的問題，而是無人機和控制器有其已知的工作波段，所以只需要用上同波段但功率更強的裝置來進行蓋台攻擊，切斷控制器和無人機的聯繫就行。

一般的商用無人機產品會有「聯繫切斷＞自動返航／自動著陸」的功能，所以這就是為何飛行前要先設定起飛點的座標而且儘量確保起飛點的GPS接收良好（以提升準確度）這個作業。同理，這類干擾機的工作方式也就是讓目標無人機進入信號切斷狀態。

>>1049448
所以這玩意沒辦法對付進入了自動導航模式的自製無人機了？
比方說我把自製無人機在自動導航模式時失去訊號的應對設定為繼續執行慣性導航。

>>1049480
可以,科幻一點的講就是攻殼中所謂的自閉模式
但是請對這種價位產品裡的慣性導航精度不要有過多幻想.

>>1049482
至少藉由高度計和指南針，應該能夠維持大概沒太遠的偏差，只要離開了那支干擾槍的視野就能重新取得導航資料了吧？

如果是攻擊型無人機的話，應該還能來個反幅射攻擊吧？

>>1049484
>>只要離開了那支干擾槍的視野就能重新取得導航資料了吧？
Q:防禦系統通常會布置在
(A)目標附近
(B)預估路徑上
(C)以上皆有可能

>>如果是攻擊型無人機的話，應該還能來個反幅射攻擊吧？
會需要佔體積重量的專用天線與接收機.

>>1049484
這類設備主要針對的是廉價民用無人機，如果是軍用的可以考慮用這種對付
https://news.ltn.com.tw/news/world/breakingnews/1877697

>>1049484

https://businessalabama.com/dynetics-builds-first-real-ray-gun-for-the-army/

Dynetics Builds First Real Ray Gun for the Army

2019/10/01

Dynetics is partnering with Lockheed Martin to deliver a mobile laser weapon system that can defend the country against drone and ground attacks.

https://www.popularmechanics.com/military/weapons/a29198555/phaser-weapon-air-force/

The Air Force Is Deploying Its First Drone-Killing Microwave Weapon

2019/09/24

The U.S. Air Force is sending PHASER overseas - the first direct energy weapon ever fielded and a huge milestone for the controversial weapon system.

>>1049482
為什麼說到這個
會讓我想到掃地機器人的自動歸位功能?

當然一個是三度空間(還有各種自然因素影響
另一個則是室內
難度不可同日而語就是了
但是基本上應該還是採用類似的邏輯吧?

>>1049518
>>掃地機器人的自動歸位功能?
現在大多掃地機器人的回家功能基本上是靠導航台(太康?)
舊一點的是亂數巡邏直到攔截到充電座的導引信號
新一點的有加上天文導引,能回到充電座附近再由充電座做近場導引

基本上還是需要外部導引信號輔助才能精確到能對接到充電接點.