Intelligent hardware purchase Raiders chapter one: # original innovator # lazy home theater: intelligent projector selection guide

First, the home theater in the end choose intelligent projector or traditional projector? (1) What is a smart projector?

The explanation given by Baidu Encyclopedia is as follows. The smart projector is a projector that has added a wireless wifi Internet access function and is equipped with a smart operating system with a separate UI interface. It seems to me that the smart projector is to add the function of the TV box to the projector, or to replace the screen of the smart TV with the projection.

(2) Smart projector can promote the popularization of home theater

The reason why traditional projectors are unable to promote the popularity of home theaters is due in large part to the fact that if traditional projectors are used as home theater display devices, there are problems such as excessive volume, high power consumption, high noise, and high failure rate. Users also need to consider the problems of audio cabling, assembly, and occupying large areas, and they need to find content resources by themselves, which greatly increases the usage threshold of ordinary households.

The smart projectors mainly use LED light sources, which not only have small size, low noise, low power consumption, but also have great advantages in service life. The life of the LED light source can reach 30,000 hours, and the brightness of the conventional bulb projector is generally reduced to about 50% of the initial value in about 2000 hours.

At the same time, the smart projector integrates Internet audio and video content, allowing users to view the content more convenient, and some smart projectors also work with audio manufacturers to integrate high-quality audio into the projector, thus eliminating the need for The trouble of home theater wiring greatly reduced the threshold of home theater.

Of course, compared with the traditional projection, the smart projector also has some weaknesses in its brightness. At present, the projection peak luminance of the LED light source can only reach 900-1100 ANSI lumens, and mainstream products in the market are generally about 600 ANSI lumens, and can only satisfy Use of family indoors. However, with the rise of laser light projection, the brightness of the future smart projector short board will be filled.

Second, buy a smart projector must know things (1) brightness

Brightness is one of the important indicators for selecting a projector. It also has a great influence on the price. For traditional light sources, the difference of several hundred lumens may increase the price of the projector by several thousand dollars. At present, the classification of smart projections is also relatively clear. When we are purchasing, we can choose according to our own use scenarios.

3000 ANSI lumens or more: For smart projectors, achieving this brightness is essentially only the smart projection of the laser source. The laser source takes full advantage of the choice of laser wavelength and hyperspectral brightness, so the display image has a larger color gamut. The color gamut coverage can reach more than 2 times of the phosphor, which can reach more than 90% of the color space recognized by the human eye; and the laser is the line spectrum with high color saturation, and the display effect can be comparable to television. At the same time laser projection inherits the characteristics of LED projection long service life.

However, there are many kinds of laser light sources, and laser projection is not the protagonist of today. Therefore, the landlord has not explained it. They simply refer to the two common laser sources, monochromatic lasers and two-color lasers.

Monochromatic Laser: Monochromatic laser is currently the most popular laser light source. This light source mode uses blue laser to excite yellow phosphor to form white light, and then uses color wheel to perform color separation to form RGB three primary colors. The advantage of this kind of light source is that it can reduce the number of laser generators used, so the cost can be greatly reduced. Some time ago, the fired millet Mi laser projector used this type of monochromatic laser.

Two-color laser: The two-color laser light source uses blue and red lasers (green is formed using a blue laser hybrid phosphor, plus a blue laser and a red laser to constitute three primary colors), and the cost will be higher, but compared to single-color lasers. The color laser light source and two-color laser projected images have higher color purity, color brightness and color gamut. Polar rice T1 is the use of this light source.

Laser projections currently on the market range from tens to hundreds of thousands. Although laser projectors are expensive, compared to televisions of the same display size, laser projectors have great advantages in the convenience of installation and in terms of price. If you want to buy a 70-inch or more TV at home, I think Laser projection is the most cost-effective and best-in-class solution.

1000 ANSI lumens and above: The price is basically between 3000-5000 yuan, suitable for use in bright light indoor, such as the living room, no need to pull the curtain indoors during the day, but also to ensure the basic normal use.

About 600 ANSI lumens: The price is basically less than 3,000 yuan. It is suitable for use in dim surroundings, such as study rooms and bedrooms, where curtains are needed or used at night.

The landlord suggested: For Typhoon, choosing 3000 ANSI lumens laser projection is more sensible than choosing a 100-inch TV; for the average family, it is recommended to choose 1000 ANSI lumens or more products, 1000 ANSI lumens basically reached the peak of the LED projection, without We are too worried about the issue of new iterations. At the same time, we can meet the needs of most of the indoor scenes. We can spend more time in service and the price is cheaper than laser projection. If you just want to buy a smart projector for use in a bedroom or study, the budget is not very high, and 600 ANSI lumens are basically enough to meet your needs. In a dimly lit bedroom, 600 ANSI lumens are clearly visible. Now.

(2) Resolution

Resolution is one of the factors that have the greatest impact on the price of the projector in addition to brightness, and it is also crucial for the viewing experience of the projector. Due to the larger display size of the projector, the higher the resolution is, the better the viewing experience is. The resolution of smart projectors in the market currently falls into three categories:

4K: There are not many smart projector products with a resolution of 4K. The aforementioned T-LED laser TV is one. It is a relatively high-end flagship product with a forward-looking view. Of course, the price is not cheap.

1080P: 1080P is the mainstream resolution of current smart projectors, and most laser projection and flagship LED projections use this resolution. At present, the mainstream resolution of online video is 1080P, so the landlord thinks this is the most suitable choice for most families, and the price is concentrated in 4500-5000 yuan.

800P:800P mainly appears in the 3,000 or so products, select the projector, we are for a larger display screen, more impact viewing experience, low resolution will greatly reduce the experience of large-screen viewing, so the landlord Personally not recommended, but for families with limited budget, 800P products can basically meet the needs of large-screen movies, watching TV, depends on your personal needs and budget, of course, if the resolution is low, I suggest not to consider it.

The landlord's suggestion: The one thing to note here is the physical resolution. Many products that claim to support 1080P or 4K actually only support the video with this resolution. When it is not displayed, it will be the resolution of 1080P, so at the time of purchase, Be sure to pay attention to this point.

(3) Projection ratio

The projection ratio is a parameter that is easily overlooked when purchasing a projection. Due to the limited space in the room, the projection ratio will affect the maximum screen size we can project. Many products that claim to be capable of projecting 100-inch or higher are subject to the constraints of our home space and cannot project such a large display area. Therefore, the smaller the projection ratio, the better, so that we can project in a limited space. Bigger picture.

(4) Hardware Configuration (Processor, Storage)

The opening article has already said that a smart projector is a projector that has added a wireless wifi Internet access function and has a smart operating system with a separate UI. Currently, most smart projectors are equipped with Android-based operating systems. Therefore, in order to purchase products that can be used for longer periods of time, no more cards will be used. We also need to pay attention to its hardware configuration, such as processors and storage. Configuration. The intelligent projector is basically a set of routines in the configuration and the smart TV. Friends who know the smart TV can directly skip this one and see the following content.

Processor: Like our mobile phone selection, we must be the mobile phone of the Qualcomm processor of choice for Android phones. For smart projectors, we need to understand the TV and projector processors. At present, the mainstream TV chips in the market come from three companies: Mstar, MTK and Amlogic. Mstar is the largest manufacturer with the most shipments and the strongest technical strength. MTK is not unfamiliar to everyone. TV manufacturers are second only to Mstar; Amlogic is a company with poor technical strength.

Intelligent projector is different from mobile phones. The hardware configuration of flagship products is relatively homogenous. The processor chips for hot-selling smart projectors on the market can be said to be varied, and the good and bad are also uneven. It is advisable to check the running points before purchasing. And see performance comparisons. Three processor vendors debuted Mstar, followed by MTK, and finally Amlogic.

Transportation: The storage is much simpler. Like the smart TV, the storage is as large as possible, at least 2GB, and some flagship products are basically shipped at 3GB. Unlike smartphones, smart projectors need to handle a large number of tasks and have low requirements for storage and storage. The 3GB projector can ensure smooth operation of smart projectors.

(5) Installation and use requirements

The installation and use of smart projectors is not complicated. Each manufacturer is similar, but there are also some areas that need attention. These places will directly affect the use and installation.

Up, down, left, right, and trapezoidal correction: If you do not reserve the installation position of the projector when you are renovating the house, you must pay attention to whether this projector has this function when you purchase. The projector with this function is much more convenient to install. It does not need to face the wall. Even if it is projected from the side to the wall, the screen can still be adjusted to the Founder.

Auto focus: The LED projection is usually small in size. With the use of time, the heat of the optical engine will cause the optical lens to displace due to thermal expansion and contraction, resulting in heat defocus. If you need frequent manual focusing during the viewing process will greatly affect the experience experience, so this feature for the LED projection, I think it is necessary.

5G-WIFI: This feature is currently supported by most smart projectors on the market. People who understand the mobile phone should be familiar with it. Compared to the traditional 2.4G-WIFI, it is faster in transmission speed. The smart projector can perform video playback or screencasting of local storage devices through a local area network. 5G-WIFI is more conducive to transmission under the local area network.

(6) Content Resources

Although content resources are the most important part of a smart projector, in the current market environment, the landlord personally thinks that for our consumers, it does not need much consideration. After all, including TV manufacturers, no one company can include all video content such as LeTV, iQiyi, Sohu, Youku, Mango TV, and finally our own video app installation is the simplest and most rude and the most complete.

Third, the popular smart projector brand and product recommendations laser projection

Tm T1 is the highest specification product at present, 4K resolution, standard 120-inch light curtain, using a bi-color light source, brightness has reached the unprecedented height of a smart projector, and customized by Harman Karton stereo . In terms of hardware performance, laser projection is also the only product that uses the Mstar 6A938 top-level TV chip. The landlord considers this to be a conceptual mass production product, just like last year's Xiaomi MIX, heralding a future direction. Extreme meters T1 can be said to be the ultimate solution for large-screen TVs in the living room. The installation of larger screen TVs is more convenient, and unlike the news, the television also needs a crane to hang into the room, and is equivalent to a TV of the same size. T1 has a high price/performance ratio. The landlord thinks this is the top choice for luxury homes when they purchase TVs.

Everyone should be familiar with the Mi laser projection. This is the most expensive product Mill has ever made. In the laser projection Riimi's home is considered a cost-effective product, unfortunately the rice home for the price is not low enough to be able to match the standard as a laser projection anti-light curtain. Mi's laser projection is 1080P resolution, uses a low-cost monochrome light source, equipped with Amlogic T968. From the configuration to the parameter point of view, the position of the Mi laser projection is obviously lower than the extreme meter T1, even lower than the meter A1, but for those who just want to taste fresh, do not intend to take one step, as fans of the living room TV, The price of the Mi laser projection is still good. However, the landlord strongly recommends purchasing another anti-light curtain, so as to achieve the best experience.

1080P+1000ANSI lumens or more

At the same time, products with 1080P and 1000 ANSI lumens are the most easily thought of by Mito H1S and Nuts J6. Both have the same features, mainly the difference in appearance and experience. You can see that you can see the right eye It! If you want to talk about the pros and cons, that is the Mi Mi H1S uses a better Mstar 6A928 processor, in terms of performance Mi Mi H1S should be able to serve longer, not easily dragged by all evil Android, and the sound of the Mi Mi H1S is Ha Mankadun customized, support for autofocus, of course, there is also a difference of about 200 yuan between the two, to see you guys decided.

800P+1000ANSI lumens or more

800P+1000ANSI lumen products are available on the market. I have picked four products that I think are worth recommending.

This is not a good introduction, the star product of nuts, unfortunately, nut G3pro does not like the nut J6, support vertical trapezoidal correction left and right, when used, the projector must face the wall, it is somewhat inconvenient to use.

The micro whale F1 is a rising star. Its main advantage lies in its content. Price is the main reason for recommending it. It is the cheapest among these, but it should be noted that the micro whale F1 not only does not support auto focus, nor does it support it. Up and down vertical trapezoidal correction. The official claim on the processor is the dual-core A53 processor. In all respects, the configuration is much lower than the nut G3pro equipped with the Amlogic T866. Who should make it cheaper than a few hundred? Not enough money to recognize it.

Zimi Z5 is a relatively balanced machine in all aspects. There is no short board. Of course, the price is also the highest. Polar meters Z5 also supports up and down left and right trapezoidal correction, but the support angle is greater. Thanks to the better Mstar 6A838 processor, Zimi Z5 supports HDR and motion compensation functions commonly found on high-end TVs. It can also achieve dual-screen multi-tasking, and overall performance and picture quality are higher than the previous two. In addition, the Z5's built-in Harman Kardon stereo sound performance is even better.

Below 800 ANSI lumens

The products below 800 ANSI lumens can be said to be a mixed bag. I don't dare to recommend it. Therefore, I recommend two brands and friends who are interested in sales. According to the purchasing criteria in front of me, I can pick another one on the market. pick.

Extremely Z4X can be said to be a god of this configuration. Miji enters the smart projection earlier, and there are almost no opponents to fight in the same period. Therefore, the Z4X has been selling for a long time since its launch in 14 years. After the nuts G1S appeared, the configuration and functions of the two were basically the same. The biggest difference was that the brightness of the Z4X was slightly higher than that of the nuts G1S. The Z4X official claimed that the brightness was 580 ANSI lumens, and the G1S official claimed that the brightness was 500 ANSI lumens. If you see it, you are happy.

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A high-speed slip ring is an electromechanical device that allows electrical current to pass between a stationary and a rotating assembly. It is typically used in applications where the speed requirement exceeds that which is achievable with a standard slip ring. High-speed slip rings are available in a variety of sizes and configurations to meet the needs of most applications. They are commonly used in military, aerospace, and medical applications where speed and reliability are critical.


The speed is required to be at least tens of thousands of revolutions per minute, the structure of the Conductive Slip Ring directly determines the contact of high speed, as well as the size of impedance. High-speed slip ring materials have high wear resistance, high life characteristics, and multi-contact contact can ensure signal transmission and power reliability, with the development of science and technology, high-speed slip rings will be more and more widely used.



If you need to transfer large amounts of data or power between two stationary objects, a high-speed conductive slip ring is what you need. Traditional slip rings only offer a few thousand revolutions per minute (RPM), which is more than enough for most applications, but can be limiting in some circumstances. Some applications, like those found in the medical or military field, require speeds of tens of thousands of RPM in order to function properly. That's where our high-speed conductive slip ring comes in. With speeds up to a certain range, it can handle even the most demanding applications.


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