Coquettish Rebirth

In addition to using compressed air rods and springs for non-rigid connections, or flexible connections to be responsible for the anti-shake accidents on the vertical plane, the x-axis and y-axis on the natural horizontal plane also need to be anti-shake.The horizontal anti-shake they designed this time is quite high-tech—first of all, an aluminum tube with a load under the camera is used as a balance bar, which is similar to the i-shaped vertical under the camera in the Steadicam suit. Same as a straight balance bar.

It is also necessary to make such a balance bar, because if you want to stabilize the horizontal plane, you must have springs or various buffer devices to connect to the camera?However, it is not possible to directly connect the horizontal "spring rod" to the non-rigidly connected "spring rod" of the vertical anti-shake, because the amount of calculation is too large. The connection problem caused the longitudinal spring and the air pressure rod to produce a longitudinal elastic change, which is equivalent to involving more things-this is probably the case, anyway, after the group of people explained it, they still used English. , There are also all kinds of wonderful professional vocabulary.Many of the professional English vocabulary is a made-up word, and Jia Hongjian didn't study this major, so how could he understand it completely?

Then again, how did they do it?It's very simple. Two semicircular aluminum alloy tubes are made, and then the two tubes are crossed and connected to a connecting platform where the vertical spring tube is connected to the aircraft.Therefore, such an anti-shake platform looks like the top is a square interface with screw holes to connect with the aircraft, and then the bottom is divided into a vertical part that hangs down vertically and is responsible for bearing the weight of the camera.And the aluminum alloy steel pipes hanging down in arcs in four directions: front, back, left, and right.As for the curved steel pipe, there is no air pressure structure or spring inside. They are not anti-shake themselves, but exist as a connection point between the horizontal spring and the air pressure rod.

At the lower end of these arc-shaped aluminum alloy tubes, four spring rods composed of slightly shorter air pressure rods and springs can be connected, and these four spring rods will eventually be in line with the center of gravity of the i-shaped balance rod under the camera. Connection, and when connecting, it is not directly welded together or screwed together by bolts or something, but the four spring rods are directly connected to a ball bearing-this ball bearing is equal to a concentric circle, except for the two-layer steel ring .There are steel balls smeared with lubricating oil in the middle.Then put the i-type balance bar vertically through the hole in the middle of the ball bearing.The vertical balance bar can move up and down with the camera without affecting the horizontal spring bar.When moving horizontally, because the ball bearings are connected to the four spring rods, the script will not affect the vertical spring rods.

In this way, the entire camera can be said to be on the xyz axis with the i-shaped balance bar.They are all flexibly connected to the aircraft.In this way, at least the small vibration of the aircraft will be slowly transmitted after being buffered and weakened by the spring rod.Then.Isn't the picture taken by this lens as stable as possible?So when he saw such a prototype sample at that time, Jia Hongjian praised it with his feet!

Although to be honest.Such a prototype sample is still a bit rough—it’s not that it’s made the same as domestic aircraft samples and has burrs and the like, it’s not that the craftsmanship is rough, but the design is rough.For example, there are bits and pieces under this thing, there is an i-shaped balance pole under the camera, and there is a counterweight under the balance pole. The balance pole itself is about one meter long!So, if this thing is really installed under the aircraft platform, how can the aircraft be equipped with landing gear?When Jia Hongjian saw that such an anti-shake device and camera were combined, the overall height was two meters!Your sister, this means that if the plane is going to fly, the landing gear must be at least two meters high!Then the plane can be on the landing gear!

Only a neuropathy can make the landing gear of a drone two meters high!Please, no matter what material is used in this way, the overall dead weight will increase a lot!This will affect the maneuverability of the aircraft!So in the end, in order not to affect the maneuverability as much as possible, it is necessary to be able to fly the aircraft.Then either keep the normal landing gear of the plane, and then dig a two-meter-deep hole in the ground where the plane is scheduled to be placed before each time the plane is ready to take off, and then put the plane on it.Or, we have to bring an additional external landing gear that is at least 2 meters high!That is to say, before setting up the aircraft, put the external landing gear on the ground first, then put the aircraft up, and then control the aircraft to fly—of course, the landing gear is left in place.When turning around to land, the landing gear must be aligned with the ground to land...

Anyway, the design of such a thing is still too rough, and it is quite troublesome to use, isn't it?It's not like a DJI product at all. Just put it on the ground and control it with a remote control, and the plane can fly directly into the sky!This is why Jia Hongjian felt that the design of this thing was rough!However, he can also understand.According to Pierce’s explanation, when he went to China to talk to Jia Hongjian, he knew that Jia Hongjian wanted to design such a stable platform for drones, so he called the cpc in the United States The team researched first.But even if it is counted from that time, it is only a few weeks until now. It is not easy for others to design such a rough but still usable principle verification platform, okay?

Besides, we have successfully verified the principle now, isn't it possible to simplify the design and make it more convenient to use in the future?Therefore, Jia Hongjian is quite optimistic about the results of this team, after all, the efficiency is high!Next, the most basic principle verification is actually very simple. Although there are no civilian flight platforms in the United States, they are just a simple principle verification now, and they don’t need many high-tech products to fully simulate. Just look at whether the system itself is easy to use or not!So, they adopted a rather primitive method - erected four flagpoles almost three stories high on the ground, and then installed pulleys on the top of the flagpoles, by installing such a stable platform on a wooden board Next, put the wooden plank on the rope at last, and then pass the rope through the pulley at the top of the flagpole. In this way, can such a platform be pulled into the air by pulling the four ropes?Even relying on the different forces of one or several ropes, it can also simulate various flight states with unbalanced forces, which is great!It's a bit rusty, but it's practical and the price is cheap!

Of course, when they tested this time, they didn't have enough money to rent a top-notch camera worth several million dollars, otherwise, what if it broke?Even if there is an insurance company to insure, the premium is free, right?So in the end they chose a home camera to act as a top-of-the-line movie camera, and of course added a lot of counterweight to simulate the weight.In the end, such a simple test shows that such a design of cpc company is still feasible-although the effect is really not as good as that of a rocker arm, it can still achieve a relatively stable effect of such a picture!

Although such a product may not be as stable as the rocker arm in terms of extreme stability, even if the drone does not fly more than ten meters high, the effect is not as good as that of directly using the rocker arm to raise the platform.But after all, this thing is the same as the Steadicam, and has its own most special characteristics-suitable for taking long shots!That's right!Can't the high platform and the rocker follow the character to walk tens of meters?Can't it be a long shot that follows the character behind and shoots continuously for 5 minutes?But if this thing is matched with a drone, it will work!From a certain point of view, this definitely adds a very special and novel shooting method to directors and photographers-although this method may not attract all directors to try.

After the principle test of the prototype stable platform here is passed, the next thing to do is to test it on the machine. After knowing that 602 has built the aircraft verification machine, the cpc team in the United States is I just want to bring their stabilization system to China to assemble it on the plane for a real flight test!After all, what they are doing now is still a simulation experiment. As a research and development personnel, of course they want to do a real experiment on the ground, otherwise, if there is something between the simulated "aircraft" and the real aircraft, they have no idea What should I do if I am surprised?So, in the end, everyone decided to take Jia Hongjian's special plane together, and then put such a prototype device directly in the cargo compartment of the plane and drag it all the way to China!

In fact, at the beginning, Jia Hongjian really felt that it would be better to send the drawings and related materials to China, and then let 602 directly process the parts with c-digital machining centers and other things, and then assemble them in China. Just one click.But at this time, I don’t know if it’s because of Lao Meizi’s arrogance. On the one hand, they seem to have little trust in China’s processing accuracy, and on the other hand, they are keeping secrets—after all, this thing is a new product. Products, if the test is successful, they can directly apply for patents all over the world!But if you send all the design drawings to companies that have no direct relationship, what if they turn around and preemptively register patents in China?

Well, after all, 602 is not the property owned by Jia Hongjian's family. Even if Jia Hongjian thinks that the people in 602 are not so annoying, he will not stand up and give 602 a guarantee!So in the end, he simply agreed to the proposal. (to be continued..)