Military Technology

Of course, the difficulty of this technology is also very high. And this is not just a technology, it involves many fields, from the information control system, to the hardware system, to the entire telex control system, it is very complicated.

The rarest or most core one is the telex control system, and the other is the information control system.

To put it simply, it is to synchronously transmit the data of human arm movement to the robotic arm, so that people can flexibly control the robotic arm as if using an arm.

The principle is simple, but the actual technology is complex. The first is the technology of collecting human arm motion information. This technology requires sensors worn on the body to accurately capture the motion signal of the arm.

In this regard, there are currently three mainstream solutions.

The first is to use the brain wave control scheme, which is the brain-computer control technology that has become popular recently. In fact, it uses the brain waves generated by thinking and imagination to control the movement of related manipulators.

When we imagine a thing or a picture or an object, the brain waves released are different. The brain-computer control technology is to use our different brain waves to control the equipment.

For example, after your brain imagines an idea of ​​moving forward, the brain will release such a brain wave. The brain-computer system will recognize this brain wave and convert it into a corresponding electrical signal command to control the device to move forward.

At present, this technology has been applied to some fields, including the brain-computer controlled wheelchair for high paraplegic patients. Patients can control the wheelchair through the brain to stop motion and so on.

There is also the use of this brain-computer control technology for text-related input. It is said that the input speed can reach 70 characters per minute, which can be said to be very fast.

At present, some technology companies want to use this brain-computer control technology to develop related bionic robotic arms, so that those with disabilities can also use this bionic mechanical prosthesis to obtain corresponding motor operation capabilities.

Although the progress in this area is relatively slow, there are still many companies that have developed the prototypes of related bionic mechanical prostheses. Although there is still a long way to go before it is practical, the most important step has already been taken, and it only needs continuous development and progress in the future.

The second solution is to use sensors to record limb movement trajectories for operational control.

Each of our limbs, such as arm and finger movements, has trajectory displacement in three-dimensional space. And this kind of solution is to use the relevant sensors worn on the hand to record these trajectory displacement movements, and then synchronize them to the robotic arm to realize the synchronous movement of the robotic arm and the human arm.

The third technology is a bionic control technology that uses myoelectric signals to control the movement of the manipulator in real time.

Collect the myoelectric signals and joint angle signals of the muscles when the human upper limbs do flexion and extension exercises on the vertical plane, and input the processed myoelectric signals and time signals into a neural network predictor to predict the joint angles.

The predicted joint angle is used as the control signal of the virtual manipulator to control the manipulator to do the same movement as the human.

The test results show that the maximum mean square error between the motion trajectory of the manipulator and the elbow angle trajectory of the human upper limb is less than 2°, and there is a strong correlation, which realizes the control of the movement of the manipulator by EMG signals.

It’s just that this technology is still immature. The main problem is that the capture of these electromechanical signals is not accurate enough, and it is easily disturbed by human bioelectricity and surface static electricity.

Therefore, the most used and the best solution is the second solution. In fact, the research on the related technologies mentioned in this set of solutions has always been a key scientific research project of Haoyu Technology.

Because this technology is not only related to the research and development progress of their related bionic synchronous robotic arm, but also related to the sale of their soon-to-be-released VR glasses. Therefore, the research and development of this technology started very early, and it has already achieved good results.

Earlier we mentioned several ways of human-computer interaction with VR glasses. In addition to the control handles currently used by everyone, this kind of wearable gloves covered with sensors has also become a key area of ​​research for many VR manufacturers.

With this wearable control glove, users of VR glasses can control many functions. You can even experience grabbing objects in front of you with your hands, or touching objects in front of you, etc., to experience functional feelings that some interactive devices could not experience before.

The automation machinery technology research laboratory sample team just wants to use this set of technical achievements that have been successfully developed to control the robotic arm.

In fact, the principles of the two are basically the same, except that the wearable gloves used on the VR eye device control the virtual limbs in the VR virtual world. On the side of the automated machinery technology research laboratory, this wearable glove is used to control the real manipulator.

However, the technical difficulty of manipulating a manipulator in reality is much higher than that of manipulating a virtual manipulator in a virtual world.

Manipulating virtual devices, related problems can be corrected and compensated by the program. But to control the real manipulator, all of these require the mutual cooperation of hardware and software.

Not to mention anything else, let’s talk about the complex components on this manipulator, numerous sensors, and some related instruction set programs, etc., as well as the coordination and unification of these complex devices. This is not something that can be developed casually. from.

Another one is that this is a complex systematic engineering project involving a wide range of disciplines. Although Wu Hao's current scientific research strength is constantly strengthening, their advantage is still in information technology, and they are still relatively weak in hardware technology, especially basic technology.

And this has brought many unexpected difficulties to the entire R\u0026D team, some of which can be solved with money, but some of which cannot be solved even with money.

Therefore, Wu Hao has been paying close attention to the entire project development process, and has personally invested in related research and development, helping the research and development team to solve many difficult problems.

There are also some problems that can only be figured out with the members of the R \u0026 D team, such as some materials and parts. They can only find their own way on the one hand, and seek help from some other related equipment and component suppliers on the other hand.

Even in terms of some materials and important load-bearing and pressure-bearing components, he also turned to relevant military enterprises for help, hoping that they could manufacture customized components for him in this regard.

Fortunately, with his status as a non-staff expert, there is no big problem. Moreover, the price of such customized parts is relatively high, and these companies are also willing to accept these private orders.