The mP3 in his right hand is plugged into the usB port of the computer, and a few seconds later, a bubble prompt appears on the computer screen that says "Removable disk (g:) has been found", and the virtual screen in front of him also appears "A device that can be connected to the brain disk has been detected, is it connected?" The choice is to connect the brain disk and allocate the corresponding space. Text prompts.

Atletico mentally chose "yes" and chose to allocate 8gB of free space, and soon saw a bubble prompt on the computer screen that "removable disk (h:) was found", and he breathed a sigh of relief and put his mind at ease.

This mP3 looks no different from the ordinary miscellaneous 128mB low-capacity mP3 sold on the market, and it is indeed a domestic mP3 player bought by Atletico Madrid in the computer city. However, the interior has been modified by Atletico, replacing the internal circuit board with another pocket USB stick, and adding a wIFI module and a Bluetooth module.

In this way, it has become a USB flash drive with the shape of an mP3 player, and its storage function is not affected in any way when it is usually used, but when Atletico himself is nearby and wears a wireless bracelet that matches it, it can be connected through the wireless bracelet that fits the wireless bracelet and the wireless module in the USB flash drive, so as to avoid the need to touch the wires when the brain disk is connected to the computer as before.

Although the voltage and current of the usB data cable are very low and safe, it is not very comfortable after all, and now the wireless communication of "wireless U disk + wireless bracelet" has replaced the previous wired connection, and it suddenly feels a lot more convenient and relaxed.

Atletico spent several more days in the provincial capital to make the pair, and the scheduled return date was postponed twice.

As for the reason, it is quite embarrassing, although Atletico Madrid has a brain of knowledge and experience, but these are all instilled in the whole of the date, and it is not his own, resulting in Atletico's electrical and electronic technical ability is not as high as he imagined, so the development progress of the wireless package is slow.

Before making that laptop, in fact, what he really needed to do was just make the adapter cable and the water cooling system, and the rest of the work was simply to install and fix the screws and pinching the clips. And both jobs have detailed tutorials, and they are not too difficult.

However, the technical difficulty of his "wireless usB" plan has been greatly improved, and the identification and driving of wireless modules require the design of an additional part of the hardware circuit, supplemented by modified drivers, and to ensure that they can be installed in the small shell of the U disk, which is very difficult and difficult.

Atletico Madrid did not give up, but more devoted themselves to the relevant information, extensive collection, careful reading, careful practice, plus the purchase of a batch of SMD components, and finally designed and produced the relevant circuit, so that the two wireless modules can be barrier-free and compatible.

However, because of the large size of his self-made circuit, the original planned USB flash drive shell could not fit in it, so he had to buy a few low-end mP3 players with large enough internal space for transformation.

In fact, network data shows that as early as 2002, a company called mobilian once released a dual-chipset TrueRadio, which integrates wIFI and Bluetooth functions, and costs $35. However, the company was acquired by Intel in 2003, and the technology was integrated into Intel's Centrino technology. There is no 2-in-1 version of the Bluetooth and wIFI chips on the market for the time being, which makes Atletico depressed.

After getting the wireless USB flash drive, the wireless bracelet is much easier, of course, because Atletico is better at identifying unfamiliar electronic products than ordinary computers, which can greatly simplify the design of related circuits.

The only difficulty is choosing the right battery and hand case.

That's right, this wireless bracelet looks like an electronic watch, and it does have the chronometric function of an electronic watch.

The reason why the shape of the electronic watch was chosen was for camouflage, and plastic hand comparisons were rare. On the other hand, it is also because the case of a sports electronic watch is generally larger, which can accommodate more electronic components, especially the battery.

The wireless module on the wireless USB flash drive can rely on the computer's usB port for power supply, but the wireless bracelet can only rely on its own battery. That's why Atletico Madrid uses both wIFI and Bluetooth wireless modules – Bluetooth chips have a low transmission rate but also consume much less power. The system can automatically decide which chip to enable based on how busy the transfer task is, and even turn off the chip when there is no transfer task, which can greatly reduce battery consumption.

Atletico Madrid's electronic watch back cover is deliberately chosen to be plastic, but there are 12 copper dots arranged equidistant along the edge of the circular back cover, which is actually the signal contact of the wireless bracelet, which is connected to Atletico's brain disc through skin contact.

Originally, the human skin can conduct electromagnetic signals, electroencephalogram, electrocardiogram and other modern medical detection technologies are derived from this, and even many people fantasize about further reading and identifying brainwave signals through electric shocks, so as to achieve "brainwave mind control", which is the ultimate human-computer interaction method that goes further than "manual control" and "sound control".

In the few online game novels that Atletico Madrid has read before, most of them have settings similar to "consciousness control virtual helmets", as long as players wear game helmets, they can get rid of the shackles of the body and feel 99 with consciousness. 99% of the ultra-high-fidelity virtual world, the control experience of the game characters is also very smooth and satisfactory, completely moving at will, as if consciousness travels through time and space, comes to another world, and attaches another body.

And now it is said that there are already some people who are developing "brainwave mind manipulation", at first Atletico Madrid and their classmates thought it was very incredible after hearing about it, and they felt very sci-fi, but after learning more about it, they all lost interest.

As early as 2003, at the "DIcon2003" exhibition held by Seoul University in South Korea, an interesting "brainwave controller" was exhibited, allowing players to control the game with brainwaves, instead of using their hands to control the joystick or keyboard and mouse. However, this operation method requires a number of sensors to be attached to the skin of the forehead of the human head, which can receive a small amount of brain waves escaping from the human brain, and then according to some algorithms, the special changes of the brain waves are summarized as control signals.

Therefore, there are two major difficulties in this technology: the first is that there must be multiple sensors that are close to the scalp, and in the early days, the patch sensors were glued to the skin, and even if they were later improved to the headphone type, they still looked bloated and cumbersome. However, compared with it, the second difficulty is actually more troublesome, that is, the recognition efficiency is not high, and the current technology can only achieve "brainwave control", rather than mind control, and the player does not use his own mind to generate control signals, but needs to be trained to use special brainwave images to generate control signals.

The coding correspondence between human brainwave images and consciousness has not been cracked so far, so although the use of "brainwave controller" can indeed output some specific control signals to realize the use of brainwaves to play games, but because the recognition efficiency and bit error rate are too high, the actual effect is very clumsy and dull, and there is no practical value in the short term, and it is only used for medical research purposes. As for the brainwave control games that claim to be consumer-oriented, they are more just gimmicks and commercial hype.

In contrast, somatosensory control with the help of inertial sensors and optical sensors seems to be more feasible, at least there are already photoelectric guns in the 8-bit era and the eyeToy camera introduced by Sony for the Ps2 game console the year before.

In fact, both of these are optical sensor technology, the former is pressed to press the trigger to inform the game console through the cable, and the game console inserts a frame of all-black picture and a frame of all-white picture into the video signal sent to the TV.

Traditional CRT TVs use interlaced scanning to display images, spending 60ths of a second scanning odd lines (upper field) and then 1/60th of a second scanning even lines (lower field), complementing each other to create a complete picture. Although the brightness of the upper field is attenuated when scanning the field, it is not easy to detect because the bright and dark parts are intertwined. This frame of all-white image does not appear on the screen instantaneously, but from top to bottom, from left to right gradually appear hundreds of white lines, due to the visual persistence effect of the human eye, it seems that the screen is suddenly lit up, and then it returns to the normal game screen.

The optical sensor of the photoelectric gun can recognize the white image and transmit the signal to the game console, and according to this time difference, you can calculate the position where the white line it is aimed at, that is, the position where the photoelectric gun "hits".

However, because of the demand for interlaced mode, the photoelectric gun was not suitable for progressive scanning displays, such as computer Vga monitors, and the new generation of progressive scanning TVs, so they were eventually eliminated along with interlaced TVs.

The principle of the eyeToy camera is to take two images through the camera, and then calculate the difference, so as to identify the player's movement changes, so as to form a game control signal. However, this method requires the player's range of movement, and even the color of the clothes and the color of the background behind him, so it is not a mature and reliable solution.

Of course, all this is not a problem here at Atletico Madrid, he has integrated a wireless keyboard and mouse receiver module on his homemade wireless USB flash drive, which can simulate a wireless keyboard and wireless mouse if necessary. And he can directly use the e7U to operate the virtual keyboard and mouse signal in his mind to the wireless USB flash drive, to a certain extent, to achieve "playing games with brainwaves". For mobile phone users, please visit http://m.piaotian.net