Coquettish Rebirth

The next experiment is a counterweight of 25 kg. Such a counterweight can basically be considered as the weight of the camera with all configurations and 400 feet of film without a stabilizer.This time, because the weight has increased by two-thirds compared with the previous 15 kilograms, the maneuverability is not as good as before. Just now, it just jumped into the sky, but now, it is Steadily going up to the sky, the speed is not too slow, it can only be said to be steady, without any difficulty, the machine is still flying!Then, during this test, there are more things to test, including the speed of ascent, including the speed of lateral flight and so on.Generally speaking, the rising speed is not slow, about two meters per second. When moving horizontally, the speed can reach five or six meters per second. It can be said that at least this speed is good for Wall-E, and the shooting effect is good. It should be ok.

But then when the overall weight increased to 35 kg, the drone obviously showed a little fatigue - although it can still get up, it is not as loud as the previous two times. It flew up, but after buzzing for a long time, it was like thunder and no rain, and then the machine slowly lifted off the ground little by little!From this point of view, at least with the current power configuration, the optimal load should be around 25 kg!And for such a load, it is required that the overall stabilizing device should not be too heavy, and it is best kept within 5 kg!But at this time, the inappropriateness of the traditional Steadicam has been revealed-the traditional Steadicam, that is, the kind that is hung on the body by the vest.It weighs 10kg by itself!If you add it all together, the maneuverability of the plane will certainly not be good, and this is definitely not suitable for shooting! <According to the detailed information obtained by the company, the stuff produced by the original manufacturer of the Steadicam also uses high-quality aluminum alloy materials to reduce the weight, and the weight distribution is actually very interesting. What about the entire balance metal arm? , In fact, it weighs 3.5 kilograms, and it is equipped with a vest for installing metal arms.That is, the thing worn by the photographer brother.Instead, it weighed 6.5 kg!

Why does the Steadicam put the greatest weight on the vest?It's very simple. If you don't put it on the vest, the metal arm is 3.5 kg. It's not heavy, but don't forget that the photographer can't just hold the 3.5 kg metal arm to shoot!In this day and age, a 35mm camera weighs more than ten kilograms.Back to add film.This weighs 20 kilograms?Add to that the weight of the 3.5 kg metal arm.Oh, the total weight is almost 25 kilograms, which is 50 kilograms. Could it be that the photographer is good at holding it?This is absolutely exhausting, okay?Therefore, in order to enhance the persistence time of the photography buddies, it is only possible to use a vest-style method to share the weight.Let the torso carry most of the weight, and the arms carry as little weight as possible.But if you want the human trunk to bear the weight, you can't just use cloth to make the vest. In that case, wouldn't the weight be concentrated on a few points?For example on the shoulders!The total weight of 50 kilograms is all on the shoulders of the photographer brother with the cloth shoulder straps. Who can do it?Not to mention the protracted shooting hours that may still be required!If you meet a director like Ang Lee, if you shoot a scene for more than ten days, wouldn't the cameraman be exhausted?

However, Jia Hongjian’s toy airplane does not have the troubles of the cameraman. The “arm strength” of this airplane is completely sufficient!There is no need to worry about what weight will cause insufficient physical strength, so from this point of view, a camera plus a 3.5 kg metal arm kit, plus a 1.5 kg mounting base and connection structure at most, this is not enough what?Isn't this enough to get 25 kilograms?

So from this perspective, such a prototype test has basically succeeded!right?That's right!At least in terms of whether it can fly and how fast it can fly, this prototype has been successful.But this does not mean that such a UAV is completely designed successfully - at least in terms of flight attitude control, this UAV cannot guarantee that it will not shake at all in the air, right?At least there is no guarantee that the plane will be as stable as Mount Tai after there is a crosswind or something in the air, right?Next, it depends on how the experts at the 602 Institute write and adjust the flight controls. In this regard, it is basically a purely time-consuming job. <The boss of the company, so people don't know about it.After Jia Hongjian and the others returned to Shanghai, within a few days, the boss of cpc came to the door - he didn't know anything related to 602, but simply came to ask Jia Hongjian and the others. What do you think.Even the boss took the initiative to lower the price: "Mr. Jia, this is the first time our cpc company has cooperated with an industry in mainland China. I asked our board of directors for instructions two days ago. After the board of directors approved it, our company It is decided to give your group a preferential price, and we only need 300 million US dollars for the cost of customized research and development, 300 million! I don’t know what Mr. Jia thinks?”

Yo, this price drop is fast enough!To be honest, 300 million US dollars to customize such a system is still not worthwhile for Jia Hongjian.Even if their family's wealth can be compared with some small countries with bigger farts, but the money is not blown by the wind!If it was 50 US dollars, then he probably decided to ask for it at that time, 300 million?As a result, after the research, this matter has nothing to do with Jia Hongjian and the others. In the future, the cpc can sell the system developed by Jia Hongjian and others, and someone will pay for the research and development funds, which is too profitable. ?Do you think Jia Hongjian and the others are local tyrants or fools? <The boss.From the very beginning, he made up his mind to cool this guy down!Just looking at the effect of drying for the past few days, it has been discounted a lot, which proves that Jia Hongjian's delaying tactics are obviously effective!

Although Jia Hongjian did not refuse him at this time, he suddenly thought of another question—"By the way, Mr. Pierce, can you introduce to me in detail the Steadicam system invented by your company? So What is the principle of a system? How did your founder come up with the idea of ​​inventing such a system?" After this question was asked, Mr. Pierce stopped talking at that time—of course people would wonder if Jia Hongjian came to dig out it. Technical!If everything is clear, Jia Hongjian and the others will ignore that their patents have expired. They have not registered patents in China before, only in the United States and other countries, so theoretically Jia Hongjian and the others are 100% It's plagiarism, it's the use of cpc's patent, but they can't pursue the responsibility, and they can't sue Jia Hongjian! Why is <'s financial situation not good?The main reason is not that the follow-up research and development work has not kept up over the years, and there is no further exclusive patent, so after the core patent expires, let alone Jia Hongjian and others, even companies in the United States can Buy a set of Steadicam system, go back and disassemble it for research, and then imitate it!You must know that even if a patent is applied for the appearance, the patent is also time-limited!It is because of the competition in these markets, and because such a market is not big in the first place, so even if Jia Hongjian is not told, can’t Jia Hongjian and the others buy a set of Steadicam in the US market and bring them back to China? Disassemble the research?Yes or no?So the current situation is really better than people!It really doesn't make much difference whether you say it or not, so why don't you just say it and get a little favor?

So at that time, Pierce gave out the whole set of design ideas of the Steadicam system - "First we designed two metal arms similar to parallelograms, and then the two metal arms were connected, and the connecting shaft was connected to the ground. Vertical, at the same time in the two parallelogram metal arms, we added two special strong springs. This strong spring can just counteract the tendency of the system itself to fall, and at the same time, these two springs can also rise The shock absorption effect within a certain range, in short, is to separate the camera from the photographer's body and prevent them from being rigidly connected, so that the shaking of the human body when running or walking will not be directly transmitted to the camera .We put the connection point between the metal arm and the cameraman's vest close to the cameraman's waist. After adopting a relatively special pace, when the person's waist is walking, the center of gravity does not change much up and down, so adding our The unique spring shock absorber design can more offset the tremors caused by humans walking around the camera...

At the same time, we designed an i-shaped balance pole on the other end of the metal arm. The camera is installed on the top of the balance pole, and the counterweight is placed on the bottom. The parallelogram metal arm is just connected to the center of gravity of such a system. In this way, the camera will avoid the danger of subsidence or overturning. At the same time, because we have increased the counterweight, the quality of the overall camera will be further increased. After the mass is increased, the inertia will be greater, and it will be less likely to be small The deflection force influences, right?We even added 6.5kg to the overall vest in the end, because the overall weight is greater, and photographers who can be pressed can't jump around, and they will subconsciously be more stable when walking, so that the force of the offset will also be reduced. It will be smaller, and it will be less likely to affect the camera..." (To be continued..)