The world of auto electronics is developing at a rapid pace. Every year, new devices appear to increase engine power, optimize suspension performance, improve fuel efficiency or improve occupants.
Some electronic novelties very quickly prove the relevance of their presence in the car, after which they quickly become a standard attribute of a complete set of models descending from the conveyors. Such devices include wireless communication, cruise control systems, etc. At the same time, there is a whole class of other electronic devices that continue to be considered promising for many years after the invention. They undergo endless improvements, defend their "place in the sun" with the help of the opinions of authoritative experts, they are even installed on the conveyors of individual brands, but they still cannot boast of real people's "love". Among motorists, such devices are usually called "autoexotics". bright representative groups are systems for projecting information on the windshield.
Development history
The first data projection systems on the windshield appeared in military aviation. Almost simultaneously, the technology for displaying information on the cockpit glazing was used by Soviet and American aircraft designers in the 70s of the last century. In the USSR, the system was called HUD (indication on the windshield), in the USA - HUD (Head-Up-Display - display for a raised head).
(click to enlarge image)
The development pursued the goal of maximizing the concentration of the pilot's attention on the air situation by eliminating the need to distract his gaze from the instrument readings. General Motors engineers "peeped" the idea and transferred it to the automotive field, resulting in the appearance of the first HUD projector on the Oldsmobile Cutlass Supreme in 1988. Only 14 years later, a similar device appeared on another GM car - the prestigious Chevrolet Corvette. In Europe, the pioneer in the use of projection systems was BMW company. Work to expand the functionality of the HUD is currently being carried out by Volvo and Audi engineers. The highest activity in the development of a new direction was shown by the Japanese: since 1989 Nissan began to complete with projection systems individual models on the conveyor. Over time and others Japanese manufacturers recognized the need to equip cars with a HUD system, so today almost all the cars they produce for the domestic market have this option.
Principle of operation and output information
The executive device (or projector) forms an information picture on its screen and transfers it to a transparent film located on the windshield. The projector can receive service information from the on-board computer, navigator, form it independently according to GPS data, etc. Most models have the ability to reproduce speech information or issue sound warnings.
(click to enlarge)
Unlike aviation systems, where a large amount of information can be displayed in the pilot's field of view, car projectors today have a rather meager set of displayed parameters. These include:
- vehicle speed;
- engine speed;
- coolant temperature;
- number of the selected transmission gear;
- voltage onboard network and battery charge level;
- indications of the parking control system;
- pictograms control lamps and navigation information.
Relevance of development. Prospects and problems
There is a certain innovation and rational grain in the attempts of manufacturers to accustom motorists to the simple perception of on-board information from the windshield. The main idea is similar to the one that was solved in aviation: the driver's attention should not be distracted from road conditions and it really increases the safety of all road users. System developers are trying to improve the functionality and capabilities of the HUD, they promise that soon the image will move across the windshield, following the direction of the driver's gaze. For this, they plan to use portable cameras and lasers. And the total computerization of on-board equipment makes it possible to build rather complex algorithms for outputting a large amount of information, taking into account the needs of a particular driver.But the projection system also has serious disadvantages that do not allow it to acquire the status standard equipment for each production model.Such disadvantages include the high cost of the original device, the limited output parameters and the dependence of image quality on the state of the windshield. Studies carried out in some countries have also shown a significant decrease in attentiveness among older drivers. age groups when information from the projector appears on the windshield. That is, there is a large group of drivers who, due to age-related conservatism, cannot and do not want to get used to the appearance of any images on the windshield. If for some reason you do not want or due to circumstances you cannot overtake your car on your own, contact
22" high resolution touch display
How do you think how they will develop electronic technology in the auto industry? We offer you a look into the future of automotive entertainment systems. Something tells us that the future has already arrived.
In the last few years, in-car entertainment systems have been revolutionized. Every year, digital will completely take over the auto industry. Technology will develop exponentially. Our online publication is starting to publish a series of articles that will reveal all the most advanced electronic technologies in the automotive industry.
Think about how cars have changed in 10 years? Today, almost all new cars have various infotainment. Many automakers have begun to put on their new products. But so far, many of them cannot boast of their capabilities at the level of a smartphone and tablet. Why do you think?
The thing is that while the car computer can not be compared with the resources of a smartphone and tablet. But very soon automotive computer equipment will be able to compete in performance with modern laptops.
The technical characteristics of the car control unit are in no way inferior to modern powerful tablets
But the resources of the equipment does not mean that everything will work perfectly and smoothly. The main thing is the software. One of the leaders software vehicles is QNX, being subsidiary BlackBerry.
It is worth noting that the company has just begun to develop in the automotive industry market. But brands such as, and even those that use QNX technologies are already working with it.
Big technology in a small Mercedes
Debut of the new infotainment system QNX at the show 2014 Consumer Electronics Show atMercedes CLA 45AMG
Even with the technology and opportunity, QNX has yet to indulge in many new innovations. So out latest developments this is a new infotainment system installed on. This car has a huge high-resolution display, a powerful multi-core processor, an elegant digital panel And a large number of features and applications.
The matt gray CLA 45 AMG evokes awe. But really this model surprises inside. At first glance, the 22-inch HD quality LCD screen catches the eye. Most of the screen is occupied by various applications. On the right is displayed information about the air temperature, clock, audio player navigation.
Touch screen with perfect response. Like on the iPhone. Finger control on the screen is exactly the same as in the familiar to all modern smartphones. The system also provides the ability to control many functions not only using the screen, but also using traditional buttons. The home screen is represented by five large buttons that, when pressed, increase in size, prompting you to select further actions.
QNX has developed a large number of applications for many car brands. So the company has created three different sat-nav apps that, when demonstrated, perform great with no lag or system crashes.
It's all driven by a quad-core processor and a dedicated graphics chipset that performs just as well as the latest tablets. It is worth noting that this chipset was released this year, unlike where the video card for the LCD monitor was released back in 2012.
Visualization and image quality of the display redefines automotive technology
Even the 2011 chipset is used, which by today's standards of obsolescence of computer technology is already ancient.
Another multimedia feature on the big screen in the CLA 45 AMG is that when you turn on the music, the screen is divided in half into two parts, where on the one hand the information about the music being played is displayed, and on the other hand the general list of available audio tracks is displayed.
Connection
Cutting-edge innovative feature for transferring images from smartphones and tablets to the car screen
The car also has new feature MirrorLink, which is still rare in production cars. This system simulates the display of your gadget (, cell phone or tablet) on the car screen. This allows you to use all phone functions on the car screen. True, some functions are still disabled so as not to distract the driver. So games and some other entertainment applications are not available for display on displays in the car.
Vehicle self-diagnosis system
Another beautiful and necessary feature is the diagnostic system, which visualizes what is happening under the hood on a large display.
So the following data is available: level, coolant, oil level, tire pressure, fuel quantity and much more. And all this is displayed in a very beautiful way. , data on all vehicle systems in real time can be transmitted via the Internet to a remote computer (for example, to a master in a car service).
The instrument panel also has a built-in LCD screen that displays the speedometer and other digital data.
QNX didn't just update the infotainment system. They have created a new generation of digital technologies in the automotive industry. This in-cabin display can show weather, route information, media coverage and more.
Voice control
A new step in speech recognition technologies
Another special element is new system speech recognition. Like Siri, the system doesn't need specific voice commands that you need to remember. You just speak and the system determines what you want. But, unfortunately, so far people are not used to talking with their own. Therefore, for sure, this function will be in demand in order to simply speed up access to any function when it is really needed.
Also, the new system from QNX improves the sound quality of cellular speakerphone.
Not finished yet
QNX could be coming to many new cars very soon
This system is on Mercedes car The CLA 45 AMG was first showcased at the 2014 Consumer Electronics Show. But for now, it is in the final stages of development. The main thing is that this technology should come to mass-produced cars. After the development is over, many manufacturers will certainly want to equip their own with such technology.
In our opinion, today this technology can significantly make any stock car very expensive. But in the future, the cost of technology will fall, which means that the mass appearance of the QNX system on many machines is inevitable.
With a high-quality display, multi-core processor with graphics card, intuitive zoom, this technology is destined to succeed. This is a huge step forward in the development of infotainment technology.
And most likely, what we now see in modern cars will not look relevant in a few years.
What to expect in the coming years? Why and how will your car become smart? In what direction will it develop automotive industry? What technologies are already available and what are waiting for you?
A lot of things can change in just one decade. For example every 5 years computer equipment is very outdated. True, we are still far from technology like in the Star Wars movie.
Let's start. For example, if you are reading this text, then you have access to the Internet. And if you go back, for example, in 1995, the Internet was available to a very small circle of people, however, like a computer. But since then things have changed dramatically. Now you can access the Internet with phone, player, choose a provider that is more suitable for your needs and financial capabilities, and so on.
It's the same with cars, where even the Chinese have managed to introduce the new Android system into their car. By the way, earlier to meet such a number of airbags in the most different options (lateral, protecting the knees etc.) was impossible on any machine.
Electric cars could only be found on the golf courses. Cars are also changing, and the rate of adoption of new technologies will only increase every year.
Internet and car?
OnStar
It is possible to slow down transport remotely, preventing the hijackers from escaping from the police while chasing. Now appeared new opportunity, which will help you recover stolen cars in hours, if not minutes.
The new technology is called Remote Ignition Block ( remote ignition lock). The OnStar operator has the ability to send a signal to the computer in the stolen car that will cause the ignition system to lock out and prevent it from restarting.
"This feature will not only help the authorities recover stolen cars, but also prevent dangerous car chases."
Holographic Information Displays
Similar systems can be seen at or. The bottom line is to send information directly to Windshield . Now there are operating models that can display information about speed, direction of movement, and more. And in the near future we will be able to navigate the road without even seeing it. For example, General Motors has already taken the first steps in this direction.
Now General Motors, in collaboration with a number of universities, has begun to develop the so-called "smart glass". GM is looking to turn the glass into a transparent display that can display information such as road markings, road signs or various objects such as pedestrians, which in fog or rain can be very problematic to recognize on the road.
Part of this technology was shown at Light Car, where with LED technology, the car uses a transparent back door as a projection screen, for visible communication between cars, which is very useful for all motorists. For example, with what force the driver presses the brakes, you can show the car that is driving behind when the scale of the picture on the display is illuminated.
Communication of your car not only with other cars, but also with the infrastructure!
Soon all cars will be connected with each other and the road structure into a single whole, into a single network, which already has its own name - "car-to-X communication". Today, several companies, including Audi, have begun to create it. The point of development is to make it possible "communication" of your car not only with other cars, but also with infrastructure, such as webcams at intersections, traffic lights or traffic signs.
Knowing about the state of traffic lights, traffic congestion and road conditions , the machine can save energy by preventing the driver from unnecessary acceleration/deceleration. The machine can even reserve a parking space. If the car is in emergency, he will be able to inform the surrounding cars about this so that other drivers can slow down in time and avoid a collision.
Audi showcases some of these innovations with an example E-tron
https://www.youtube.com/v/iRDRbLVTFrQ
Security Improvement
Speaking about technologies that can improve the security situation, developers see one of the main tasks in "keep" us on the same lane or even on the road in especially difficult cases .
Improved engine start system
In fact, such systems are not a matter of tomorrow, but of today. But it is impossible not to say about them, since they are one of the elements of the very efficiency of resource use. It's about about the automatic engine start or stop system.
Such solutions can already be observed on almost everyone: when it stops, the engines turn off; to start off, you do not need to start the engine again, but just press the gas pedal. And if we talk about the future of this technology, then it can eventually be closely integrated with the car-to-X system, to further reduce fuel consumption. For example, given the information that a traffic light at an intersection has turned red, the car can turn off the main engine and continue driving on the electric motor only, thereby saving some energy.
Autopilot or precise cruise control
Brake assistance systems via vehicle-mounted echo sounders/lasers or radars have already become a standard option installed in expensive cars. But, like other developments that first appeared in cars of the upper price range, this one will also soon migrate to a cheaper segment.
This kind of technology, which able to avoid collision with the vehicle in front, can help in traffic safety and is useful mainly to novice drivers, so its appearance will be very useful. If manufacturers continue to improve this technology, and it will, we may soon see something similar to autopilot.
“Our goal for 2020 is that no one gets hurt by Volvo cars”, says senior security adviser Thomas Berger, speaking of new pedestrian detection system V .
Motion monitoring or "Dead Zones"
Two more, undoubtedly, necessary technologies that can help improve the security situation are the monitoring of so-called " dead zones" And lane crossing warning system. For example, the new system, which is planned to be installed in cars starting in 2011, combines these two technologies. The system will not only be able to warn the driver if he without a turn signal will start rebuilding to the adjacent lane, but prevent rebuilding if the row is occupied by another vehicle. Naturally, Infiniti will not the only car where we can observe similar technologies.
The so-called "blind zone". Companies such as BMW, Ford, GM, Mazda and Volvo offer special systems who use cameras or sensors built into the mirrors controlling dead zones. Small warning lamps installed next to the rear-view mirrors warn the driver that the car is in a dead zone, and if there is no reaction from the driver and he starts changing lanes, the system is taken over a Actively warn of interference by making sounds, or, depending on the brand, begins steering wheel vibration. The downside is that similar systems only work at low speeds.
Cross Traffic Alert System: this is a radar that operates on the basis of a monitoring system for "dead zones". The system is able to detect the movement of vehicles in a cross direction while driving in reverse. Cross Traffic Alert is able to determine the approach of a car at a distance of 19.8 meters from both the left and right sides, where special radars are installed. This feature is currently available on Ford and Lincoln vehicles.
Crossing the road markings
Several companies, including Audi, BMW, Ford, Infiniti, Lexus, Mercedes-Benz, Nissan and Volvo, offer similar friend to another solution. The system uses small road marking cameras, and if you cross it without turning on the turn signal, the system gives a warning sign. Depending on the system, this may be Sound or light signals, steering wheel vibration, or slight belt tension. For example, Infiniti uses automatic braking
on one side of the car to prevent the vehicle from leaving the lane.
parking
The day is not far off when cars will be able to drive without human assistance. I set the desired destination, and you sit to yourself, sip coffee and look through the morning press. But while this day has not yet come, and many automakers are beginning to slowly prepare us for this. For example, many companies are already installing automated parking assistance systems. Such systems operate as follows: the car uses radar to determine whether there is enough space to park. Further, it helps the driver to choose the correct steering angle and practically puts the car into the parking space himself. Of course, so far it cannot do without human help, but very soon such systems will appear in which human participation will not be necessary at all. You can get out of the car and watch the whole process from the side.
Driver status tracking: a tired driver can be just as dangerous as a driver drunk driving(and you need to drink that in the norm of the law).
Vehicle-integrated tracking systems that recognize signs of fatigue in the movements and reactions of the driver and warn of the need for a break, are available from several car manufacturers. These are Lexus, Mercedes-Benz, Saab and Volvo. For example, in Mercedes, such a system is called Attention Assist: it first learns the driving style, in particular rotation of the steering wheel rim, turning on the direction indicators and pressing the pedals, and also monitors some control actions of the driver and such external factors such as crosswinds and uneven road surfaces. If Attention Assist recognizes that the driver is tired, it informs them to stop for a short rest. Attention Assist does this with an audible signal and a warning message in the instrument cluster display.
In Volvo cars there is also a similar system, but it works a little differently. The system does not control the behavior of the driver, but evaluates the movement of the car on the road. If something goes wrong, the system alerts the driver before the situation becomes critical.
Night vision cameras
Night vision systems can help reduce traffic accidents at night time. Currently offered by companies such as Mercedes-Benz, BMW and Audi in the new A8. Such systems can help the driver to see dark time day pedestrians, animals or better to see road signs. BMW uses this for this. infrared camera, which sends the image to the monitor in black and white. The camera distinguishes objects at a distance of up to 300 meters. infrared Mercedes-Benz system has more short range, but is capable of delivering more sharp image, however, its disadvantage is bad job at low temperatures .
And Toyota engineers have been working lately to improve night vision systems that can help drivers navigate more confidently at night. They recently unveiled a prototype camera based on algorithms and imaging principles discovered by studying the functioning of the eyes of nocturnal beetles, bees and moths, which can see in a wider range of colors, and is also adapted to more fully capture light that is not so much in the darkness of the night. The new digital image processing algorithm can capture high quality full color images in low light conditions from a moving on high speeds car. Plus, the camera is capable of automatic mode adapt to changes in light levels.
Demonstration of the operation of a thermal imager - a night vision camera for a car
https://www.youtube.com/v/ghzyW0HaXMs
Seat belts
Last year, Ford introduced the world's first seat belts with inflatable pillows. According to the developers, this system will significantly increase the protection of passengers. rear seats, and especially young children, who are more likely than adults to be injured in road accidents. Integrated seat belt airbag inflates in 40 milliseconds. It is planned that Ford will equip the Explorer 2011 models with similar belts. model year, but only for rear passengers. In the future, similar systems will be extended to other automakers.
https://www.youtube.com/v/MN5htEaRk4A
Hybrids and electrics
Recently, almost all automakers, both large and small, are trying to achieve greater efficiency, or coefficient useful action, from power units, while relying on new types of fuels and engines, trying to reduce consumption and increase the average mileage per charge / filling. Already today we can observe a large number of mass-produced, and almost every automaker has a hybrid car in its portfolio. In the next decade, there will only be more of them.
Wireless battery charging
In connection with the forthcoming distribution of cars on rechargeable batteries the question of their problem-free, and most importantly, fast reload. Of course, you can unwind the extension cord with the plug from the car and connect it to ordinary socket. But this is not available to everyone.
It is difficult to imagine a city dweller pulling a plug to the sixth floor. Or the option with free sockets on the streets looks absolutely futuristic. Another option, which seems not so fantastic, is induction charging device . In addition, the technology is already being tested on smaller devices such as iPods and mobile phones. These kinds of chargers could be built into parking spaces in large stores, for example.
Active aerodynamics
Despite the fact that all automakers have long been using wind tunnels, and in this aspect there is room for improvement.
For example, BMW, in its concept car BMW Vision Efficient Dynamics, has already successfully used systems air intake controls. Depending on the driving conditions and the outside air temperature, the dampers in front of the radiator are opened or closed by a signal from the system. If they are closed, this improves aerodynamics and reduces engine warm-up time, thereby reducing fuel consumption. Naturally, BMW is not the only company using this technology.
KERS - regenerative braking
This is a type of electrical braking in which the electrical energy generated traction motors operating in generator mode is returned to the electrical network.
Only in the 2009 season in "" on some fireballs the kinetic energy recovery system (KERS) is used. It was expected that this would spur development in the field of hybrid cars and further improvements to this system.
As you know, Ferrari introduced a hybrid coupe based on the 599th model, with KERS system.
Cars of the future
2057 year. The limited space of city streets and vertical architecture require the automotive industry to create newest cars who can survive in urban jungle And arrange vertical races. Innovative Solutions automakers find themselves in biomimicry, where four nano-laser wheels easily adapt to any track.
held together by magnetic fields), which can be restored to its shape with a single click on the alarm key fob or inside the car. The driver will be able to choose the type of car body from several possible “pre-installed” skins. The choice of car color is simply unlimited - a dream for girls who choose their car to match the color of their favorite lipstick.
Magnetic fields will help the concept instantly regenerate after being hit. SilverFlow restores its original form with a simple "reload". The appearance of gold areas will inform about the completion of the "transformation" and the readiness of the car for the trip.
The transfer of mechanical energy to the wheels, according to the thoughts of the Mercedes, is transmitted special liquid, whose molecules are set in motion by electrostatic nanomotors. Four swivel wheels allow the car to turn on the spot and park sideways. You won’t find a steering wheel and usual pedals in SilverFlow, acceleration and direction of movement will be set by two levers mounted on the sides of the driver’s seat.
Honda Zeppelin
This Honda, was created by a student who studied at the Department of Automobile Design at Hongik University, which is located in Korea.
Sequence GT
Top news of the week
Run modeling software and display a full-size model for editing in space. Turn on the communicator and talk not with a flat image of the interlocutor on a video call, but with its three-dimensional projection, through which your favorite carpet shines through. Pull back the curtain and see the weather forecast on the window glass, the situation with traffic jams, and in general - how it is there. Start the car engine and receive additional alerts on the windshield area about road markings, possible hazards and other important information.
If earlier all this was the lot of science fiction, now this has moved from the category of “Fiction” to the category of “Near Future”. We will try to tell in this post how modern scientists are approaching the age of holography, how it all began and what difficulties in the development of holographic technologies are currently experiencing.
How holographic images are created
The human eye sees physical objects because light reflects off them. The construction of a holographic image is based precisely on this principle - a beam of reflected light is created, completely identical to that which would be reflected from a physical object. A person, looking at this beam, sees the same object (even if he looks at it from different angles).Higher-resolution holograms are static drawings, the “canvas” of which is a photopolymer, and the “brush” is a laser beam that changes the structure of photopolymer materials at a time. As a result, the photopolymer processed in this way creates a holographic image (light falls on the plane of the hologram, the photopolymer creates its thin interference pattern).
By the way, about the interference itself. It occurs when a series of electromagnetic waves are formed in a certain space, whose frequencies coincide, and with quite a high degree. Already in the process of recording a hologram in a particular area, two waves are added - the first, the reference, comes directly from the source, the second, the object, is reflected from the object. A photographic plate with sensitive material is placed in the same area, and a pattern of darkening bands appears on it, corresponding to the distribution electromagnetic energy(interference pattern). Then the plate is illuminated with a wave close in characteristics to the reference wave, and the plate converts this wave into a wave close to the object wave.
As a result, it turns out that the observer sees approximately the same light that would be reflected from the original object of the recording.
Brief historical background
Shel 1947 year. India gained independence from Britain, Argentina granted women the right to vote, Mikhail Timofeevich Kalashnikov created his famous machine gun, John Bardeen and Walter Brattainomes conduct an experiment that made it possible to create the world's first working bipolar transistor, and the production of Polaroid cameras begins.And Dennis Gabor receives the world's first hologram.
In general, Dennis tried to increase the resolution of electron microscopes of that era, but in the course of an experiment aimed at this, he received a hologram.
Alas, Gabor, like many minds, was a little ahead of his time, and he simply did not have the necessary technologies to obtain good quality holograms (it is impossible to do this without a coherent light source, and Theodor Meiman will demonstrate the first laser on an artificial ruby crystal for only 13 years later).
But after 1960 (a red ruby laser with a wavelength of 694 nm, pulsed, and a helium-neon laser, 633 nm, continuous), things went much more cheerfully.
1962 . Emmet Leith and Juris Upatnieks, Michigan Institute of Technology. Creation of a classic scheme for recording holograms. Transmission holograms were recorded - in the process of restoring the hologram, light was passed through the photographic plate, but some of the light is reflected from the plate and also creates an image that is visible from the opposite side.
1967 . The first holographic portrait is recorded using a ruby laser.
1968 . The photographic materials themselves are also being improved, thanks to which Yuri Nikolayevich Denisyuk develops his own recording scheme and obtains high-quality holograms (they restored the image by reflecting white light). Everything is going quite well, so much so that the recording scheme is called “Denisyuk's Scheme”, and the holograms are called “Denisyuk's Holograms”.
1977 . Multiplex hologram of Lloyd Cross, consisting of several dozen angles, each of which can be seen from only one angle.
Pluses - the dimensions of the object that you want to record are not limited by the wavelength of the laser or the size of the photographic plate. You can create a hologram of an object that does not exist (that is, simply by drawing an invented object from several angles at once).
Cons - the lack of vertical parallax, such a hologram can be viewed only along the horizontal axis, but not from above or below.
1986 . Abraham Seke realizes that there is no limit to perfection and proposes to create a source of coherent radiation in the near-surface region using X-rays. The spatial resolution in holography always depends on the size of the radiation source and its distance from the object - this made it possible to reconstruct in real space the atoms that surrounded the emitter.
Now
Today, some prototype holographic video displays work in much the same way as modern LCD monitors: they scatter light in a special way, forming pseudo-3D, rather than creating an interference pattern. What is the main disadvantage of this approach connected with - only one person sitting at the right angle to the monitor can normally evaluate such a picture. All other viewers will not be so impressed.Of course, fans of science fiction and new technologies sleep and see how holographic displays will become as commonplace as wifi at home or a camera in a smartphone, comparable to not the worst soap dish. And although the ideal hologram in the understanding of the majority is actually not today and not tomorrow, developments on this topic are already underway.
Institute of Science and Advanced Studies, Korea. A working prototype of a new 3D holographic display, the performance characteristics of which are about a couple of thousand times better than those of existing analogues.
The weak link of such displays is the matrix. While matrices consist of two-dimensional pixels. The Koreans, on the other hand, used a conventional (but good) display, coupled with a special modulator for the front of the optical pulse. The result was a high-quality hologram, though small - 1 cubic centimeter.
There was a time when it was believed that light scattering was a serious obstacle to the normal recognition of projected objects. But as our practice shows, modern 3D displays can be significantly improved by learning to control this dispersion. Proper dispersion made it possible to increase both the viewing angle and the overall resolution,- notes Professor Jonken Park.
Griffith University, Swinburne University of Technology, Australia. Holographic display based on graphene.
Scientists armed with the Gabor method mentioned at the very beginning of this post, and made a high-resolution 3D holographic display based on a digital holographic screen consisting of small dots that reflect light.
Pros - viewing angle of 52 degrees. For normal perception of the picture, no additional stray items in the form of 3D glasses and other things are needed.
By the way, about 52 degrees. The viewing angle is greater, the fewer pixels will be used. Graphene oxide is processed by photoreduction, which creates a pixel that can bend color for a holoimage.
The developers believe that this approach in due time will be able to start a revolution in the development of displays, especially on mobile devices.
Bristol University, UK. ultrasonic holography.
The object is created in the air with the help of many ultrasonic emitters aimed at a cloud of water vapor, which is also created by the system. The implementation, of course, is more complicated than in the case of the usual screen, but still.
- fog is created not just by drops of water, but by drops of a special substance.
- this substance is illuminated by a special lamp.
- the lamp modulates a special light.
The result is a projection of the object, which can not only be viewed from all sides, but also touched.
The oscillation frequency of such an interference pattern is from 0.4 to 500 Hz.
One of the main areas of activity in which developers suggest the beneficial use of technology is medicine. The doctor will be able to “feel” it based on the data of the medical record and the simulated organ. It will also be possible to create three-dimensional projections of any goods at presentations. Positive effect predict and when replacing similar technology of touch displays in places of mass use (electronic menus, terminals, ATMs). How difficult and expensive it will be to implement - of course, is the second question.
And what entertainment services of a certain direction can reach - it's scary (but interesting) to think.
Vancouver, Canada. Interactive holographic display.
What do you need:
- mobile device
- HDMI or wifi
- donate $550 on Kickstarter here
The instrument panel is good, but when information is additionally displayed on the glass, it is even better. Let's talk about the purpose of the projection display, its varieties, characteristics, cost and video.
The content of the article:
The projection display is becoming more and more popular, in another way it is also called HUD or Head-Up Display. The big advantage of this technology is traffic safety and driving comfort.
The main purpose is to project onto windshield car up-to-date information from the dashboard. The image is calculated in such a way in height, so as not to distract attention from the road to have an idea about the state of the car and speed.
A little background
For the first time, such technology began to be used in aviation, but the projection display came to the automotive industry only in 1988 by General Motors. 10 years later, GM pioneered this technology with a color display.
Since 2003, the head-up display has appeared in BMW cars. Today, the projection system is used in many premium cars. Every year, the technology becomes cheaper, which means it is more accessible on cars of other budget classes.
head-up display
The name speaks for itself, when buying a car it is offered as an option. By design, the system includes a head-up display, a projector and a projection control system.
To form an image, manufacturers use a projector with high contrast and color saturation. Having collected together the parameters from different meters of the car:
- engine sensors;
- navigation system;
- night vision system;
- adaptive cruise control;
- sign recognition and others.
Thanks to the head-up display, the driver receives a virtual image, which allows him to concentrate on the road. Two types of screen are recognized. Often the most common can be considered a special, transparent film that is glued to the windshield. It prevents the image from scattering under different weather conditions. On Mini machines, the manufacturer uses a transparent screen instead of a film.
Depending on the manufacturer of the head-up display and the systems it uses, it can be designed:
- duplication of different sensors of the instrument panel;
- signal about the car in the dead zone;
- the presence of pedestrians on the side of the road at night;
- vehicle speed;
- engine speed from the tachometer;
- indicators from the navigation system;
- signal about different road signs.
The advantage of such a display is its versatility and ease of installation. It is a portable projector that can be installed in convenient location for the driver and display a picture on the windshield.
Garmin devices are considered the most common. Installed directly on the torpedo. Pioneer is considered the second manufacturer; according to the instructions, it is mounted on Sunshield. In this case, the video signal is sent to the projector via a smartphone via Bluetooth or a USB cable.
It is immediately worth considering that the functional set of a mobile projection display is several times smaller than a standard one. Most often, a mobile device includes indicators of the navigation system, vehicle speed, but this requires a smartphone and special software installed on it.
Of the popular mobile projectors, the device from Navdy is considered. The display can be connected to a smartphone via Wi-Fi or Bluetooth, you can also connect it to on-board computer, via the diagnostic connector.
Thanks to the on-board computer, information from various sensors on the instrument panel can be displayed on the projection display. The built-in infrared camera will allow you to implement rigid control of the projection display from an additional control panel.
The simplest way to implement a projection display can be done from a regular smartphone. This will be based on special program, which displays certain information on the smartphone screen.
The smartphone itself is located on the instrument panel, the image from the smartphone display is projected (displayed) on the windshield, thereby showing the driver the necessary information.
The program distorts the image in a mirror form so that the correct, readable information is on the glass. But still, it will not be able to replace the stationary one of the above induced displays.
Display Price
Price standard display will depend on the manufacturer, on average, its price as an option will be from 500 euros. Based on Garmin's mobile projection display, its price ranges from 200 euros. The cheapest and easiest way is to use a smartphone, just buy a special stand for a couple of thousand rubles and install it near the windshield and add your smartphone.
It is worth noting that the head-up display technology only on the windshield is just beginning to develop. It is believed that in the future the Head-Up Display system will display all the necessary information on the windshield, including the image from the side rear-view mirrors.
Video of the principle of operation of the projection display:
