IR port is ... What is IR port?

IR port in the phone Siemens CXT70

Irda. - Infrared Data Association, IR port, Infrared port is a group of standards describing the protocols of the physical and logical level of data transmission using the infrared range of light waves as a carrier.

It is a kind of atmospheric optical communication line of the near radius of action.

It was especially popular in the late 1990s early 2000s. At this time, it is practically ousted by more modern ways of communication, such as WiFi and

High-speed capabilities, on the contrary, are still several times higher, for example, the possibility of the latter, at the moment, the version of the Bluetooth protocol (Specification 2.0).

IRDA Specifications include IRPHY (SIR, MIR, FIR, VFIR, UFIR), IRLAP, IRLMP, IRCOMM, TINY TP, IROBEX, IRLAN, IRSIMPLE and IRFM (is in development).

Hardware implementation

The hardware implementation, as a rule, is a pair of transmitter, as a LED, and a receiver, as a photodiode located on each side of the communication line. The presence and transmitter and receiver on each of the parties is praised to use the guaranteed data delivery protocols.

In some cases, for example, when used in remote control towers of household appliances, one of the parties can only be equipped with a transmitter and the other only by the receiver.

Sometimes devices are equipped with several receivers, which allows you to simultaneously maintain a connection with multiple devices. At the same time, the use of one transmitter is possible than a blessing that the logical level protocols, to provide guaranteed data delivery, require only minor reverse traffic.

The presence of several transmitters is much less common.

Most optical sensors used in photos and video cameras have a range of sensitivity is much wider visible part of the spectrum. Thanks to this, the working infrared transmitter can be seen on the screen or a photograph in the form of a bright spot.

Opportunities

In everyday life, we constantly encounter IR ports every day.

The remote control transmits commands to a TV or video recorder using IRDA. Now the IR ports are still equipped with most mobile phones, laptops and pocket computers. IR ports are equipped with some printers and digital cameras. Most desktop PCs, on the contrary, has no infrared port in a standard system configuration, and an IR adapter is required for them, which connects to a computer via Som port or into a special connector on the motherboard.

Through the IR port, using the high-level protocol - Irobex can, for example, pass, ringtone, a picture or file to another mobile phone or computer, which also has an IR port. The same protocol allows you to organize data synchronization.

IrComm allows you to use a mobile phone as a wireless modem.

The IRLAN protocol allows you to connect to connect devices to the local network, like software.

Irphy.

Irphy (Infrared Physical Layer Specification) - Represents the mandatory protocol of the lowest level among IRDA specifications. Complies with the physical level of the OSI network model

The main characteristics of the IRPHY specification look as follows:

  • Distance: at least one meter. Hamid
  • The minimum supported deviation from the receiver / transmitter axis: at least 15 °.
  • Data transfer rate: from 2.4 kbps to 16 Mbps (100 Mblem version is in development).
  • Modulation: an unmodulated signal, without carrier.
  • Wave range: from 850 to 880 nanometers.
  • Data transfer mode: half duplex.

Interestingly, the specification does not define the maximum valid values ​​for parameters such as a distance or deviation from the axis, however, the typical location of devices for organizing the connection implies a distance from 5 to 50 centimeters, on the same axis. Devices with single-travelers (for example, a remote control and TV), as a rule, maintain a range of at least 10 meters.

The use of half-duplex mode is motivated by the fact that, when trying to simultaneously receive and transmit data, the emission of its own transmitter will greatly interfere with the receipt of the signal from the remote transmitter, which makes the implementation of the full-duplex mode is very complex and inexpedient.

Data transfer rates are divided into several subbands - SIR, MIR, FIR, VFIR, UFIR each characterized not only by different speeds but also using various code circuits. What, in fact, makes it possible to faster data transmission.

Sir.

'Serial Infrared (SIR) Uses the charges of the data transfer rate that the Specification of the RS232 serial connection is found, namely 9.6 Kbps, 19.2 Kbps, 38.4 Kbps, 57.6 Kbps, 115.2 Kbps. The coincidence of supported speeds is not accidental, and the vague is quite easy to implement COM IRDA adapters.

As a rule, the smallest available speed for devices is exactly 9600 bits / s and it is it used to transmit search signals, alerts and conjugation.

Mir.

MIR - Medium Infrared - Supports data rates of 0.576 Mbps and 1.152 Mbps.

Although MIR is not an official IRDA term, however, the fact that the coding scheme used for these speeds is excellent from both SIR and FIR, makes this term quite comfortable and common.

Fir.

Fast Infrared. - Outdated IRDA Specifications, previously used to designate a device that supports the rate of data from 9600 bps to 4 Mbps, which includes SIR and MIR.

Nowadays, as a rule, the term FIR is used to indicate the speed of 4 Mbps.

Some sources use the FIR term to designate all SIR speeds.

Vfir.

Very Fast Infrared. - The term is used to refer to the support of transmission rates up to 16 Mbps.

Although the specification details are still in the state of development, at the moment, 16 Mbps is the highest transfer rate of IRDA data supported by serial devices.

For example, the infrared transmitter TFDU8108 supports all data rates from 9.6 kbps to 16 Mbps.

Ufir.

Ultra Fast Infrared. - It is in a state of development, it is expected to maintain speeds up to 100 Mbps.

IRLAP.

Infraared Link Access Protocol - Mandatory second-level protocol, is located on top of Irphy, corresponds to the channel level of the OSI network model.

Irlap is responsible for:

  • Access control.
  • Search for arrangements near devices.
  • Establishing and supporting bidirectional compound.
  • Distribution of primary and secondary roles among devices.

IRLAP divides all communicative devices to one primary and the rest (one or more) secondary. The primary device controls all secondary and can transmit data to them without "permission." The secondary device can send data only on request from the primary one.

IRLmp

Infrared Link Management Protocol - Mandatory protocol of the third level. Complies with the network layer of the OSI network model.

Consists of two sublevels - LM-MUX (Link Management Multiplexer) и LM-IAS (LINK MANAGEMENT INFORMATION ACCESS SERVICE) .

LM-MUX is responsible for:

  • Separating the data stream to different communication channels.
  • Replace primary / secondary devices.

LM-IAS is responsible for:

  • Publish a list of available services.
  • Access client devices to published services.

Ircomm.

Tiny TP.

Irbex

IRLAN.

Irsimple.

IRFM.

see also

Other Wireless Interfaces for Small Radius Action

Wikimedia Foundation . 2010. .

Most often, the IR port is found in Chinese smartphones - it still put Xiaomi, Huawei, Honor and many other manufacturers. It looks like a small black eye on the top face.

In modern smartphones, IR is needed to manage home appliances - there are special applications that allow you to adjust it as a universal console. For example, if the remote from the TV is lost somewhere in the apartment, then at any time the TV can be switched from the smartphone.

With the help of a smartphone, you can control the TV, TV prefix, air conditioning, camera and other technique. For example, in Xiaomi smartphones, there is a MI Remote Controller brand application that allows you to configure IR port under all the technique in the house. This is especially useful in televisions and air conditioners that do not support control via Wi-Fi.

Previously, the IR port was used to transfer files between old phones - over time they began to refuse it, because Bluetooth, Wi-Fi and Mobile Internet work at times faster.

For example, infrared port is in the Xiaomi Mi A3 budget smartphone:

Note: Now a good time to make purchases at special prices with discounts. To save, Look hot products, as well as the best and novelties on Aliexpress. The most profitable offers are collected in top discounts per week.

An error occurred during the download.
USB

And you still remember those old good time when there were phones, and not smartphones, there were no Bluetooth and WiFi, 128 GB of internal memory and quick mobile Internet (and wired)? If so, then you probably remember about the only way to transfer pictures or melodies through the IR port in the phone.

USB

With the advent of a faster and convenient way to transfer data to Bluetooth IR ports for a while they disappeared from smartphones. However, IR transmitters remained and everywhere apply in the remote controls of the TV, TV consoles, air conditioners and other appliances.

Why the IR port is smartphone now

Modern data transfer smartphones use either slower Bluetooth, or faster WiFi, the same photos are more convenient to "reset" by WhatsApp. However, there were tasks for the IR port in the smartphone - management of household appliances. Using special smartphone applications, you can enable and configure air conditioning, switch to another channel or add volume on TV and so on.

USB

How to manage equipment through IR port

It's not enough to have a smartphone that is equipped with an IR port, it is necessary that a special application was installed on the gadget. For example, a free MI remote application (MI Remote Controller, MI Remote Controller, can be installed on Xiaomi's smartphones. , DVD players, etc.

USB
The remote control from the TV stored in the application
The remote control from the TV stored in the application

There should be no need for the application of the application. But if nevertheless arises, write in the comments, try to help.

USB

Subscribe

Infrared port and working with him

Why do Ik-port need? Such a device allows

Without the use of wires, create a steady connection between
Computer and other devices (equipped -Module infrared portIR ports). For example, it may be a scanner or
a printer. Although now most users acquire such Infrared Data AssociationDesktop communication device with pocket
Computer or, which is significantly more often, a cell phone. - IRDA, IR-port, infrared port - a group of standards describing the protocols of the physical and logical data transmission using the infrared range of light waves as a transmission medium.The last two devices have a fairly primitive input system.

And, of course, its expansion increases the comfort of work.

with information. Mobile phone has become a convenient device for

Most computers users. IR port

  1. equipped with many phone models, allows you to edit content
  2. A notebook of the apparatus through an ordinary computer. Can be without
  3. Special problems change the logo on the display or put a melody
  4. Call. A fairly interesting feature that appears

    The owner of the mobile device is network monitoring,

    Which will give the most comprehensive information on the network. It is impossible

      not to say about such a service of almost all cellular operators like mobile Internet. In this case,

      You can go to the worldwide network through your mobile. telephone. In other words, you become users

    The Internet at any point where the operator needs you.

    This is quite expensive, but alternatives to solving this problem

    In some cases there is no. Let's get acquainted in more detail with this wonderful

    It is a kind of optical-fiber communication line of the near radius of action.device. It was especially popular in the late 1990s early 2000s. At this time, it is practically ousted by more modern counterparts, such as WiFi and Bluetooth.

    Types of IR ports (by connecting):

    The main reasons for the refusal of IRDA were:

    one.

    Complication of assembly of devices of devices in which an IR transparent window was mounted.

    on the IRDA connector of the motherboard,

    Restricted range and Requirement Requirements A pair of transmitter receiver.
    2.

    On the standard 9-pin COM connector

    3.

    And on USB.

    Second and third types are universal devices. In other words, if you buy such an IR transceiver, he will stand on your computer without complications. If you

    An IR port attracted, which is connected to the IRDA maternal connector, then problems may arise. Carefully read the instructions and consult with the seller. For example, an IR port of ASUS It works only on the motherboard of the same manufacturer. Very comfortable IR ports makes one

from Chinese companies (there is no plastic bag

Names of the manufacturer). Connector for connecting to IRDA

Made according to the principle of "Gather me myself." One side,

IR port in the phone Siemens CXT70

he obviously lacks mechanical strength and insert it The connector of the motherboard is very difficult. But on the other

sides, you can easily without resorting

to help the soldering iron and tweezers, collect the desired connector,

Thereby ensure the necessary "pin" compatibility. Such.

  • The flexibility of the solution makes it very attractive for purchase. Though
  • The quality of Chinese IR ports ... Let's not
  • about bad. In the future we will talk

On the characteristics of such devices.

  • Working conditions
  • IR communication devices cannot be called very capricious, but still you need to tell a little about the conditions of their operation. First of all, it is worth knowing that the wavelength of the work of IR ports lies in the range from 850 to 900 nm. Most often this value is 880 nm. So organize strong interference is quite simple. Let's start with examples:

Apartment windows located on the fifth floor come out

  • on the west side. In the evening
  • IR receiver / transmitter stopped seeing cellular
  • The phone equipped with a similar system. This bundle was
  • On the table and was not covered with anything. Reason for noise
  • was found without any problems. Bright spring sun has become
  • wines everything. When working with IR devices Beware of direct sunlight.

In the evening when the daylight lamp is turned on

Repeated. However, it is worth noting that the connection was still,

But very often fell. Daylight lamp should be

The presence of several transmitters is much less common.

Cover or turned off while working

IR devices.

TV, which is in close proximity

From the desktop, equipped with a remote control

IrComm allows you to use a mobile phone as a wireless modem.

Control. When switching channels or any other

Manipulations with the "Livestock" Working program regularly issued a message that in direct proximity works

Relatively low data transfer rate of the first implementations of the standard. In subsequent audits of the standard, this drawback was corrected: high-speed capabilities are slightly exceeded, for example, the capabilities of the Bluetooth version of the Bluetooth protocol (Specification 4.0). However, the high-speed IRDA speed options have not had time to get.

Irphy (Infrared Physical Layer Specification) Foreign IR device and required

The main characteristics of the IRPHY specification look as follows:

  • Turn off it. Prevented this data transmission or not -
  • It is not known, but until the remote control was removed
  • control (you can read "was turned off"), nothing
  • Modulation: an unmodulated signal, without carrier.
  • Wave range: from 850 to 880 nanometers.
  • Data transfer mode: half duplex.

Make a program. When working S.

IR device remove all outsiders

IR transmitters in the action zone

'Serial Infrared (SIR) IR port.

As a rule, the smallest available speed for devices is exactly 9600 bits / s and it is it used to transmit search signals, alerts and conjugation.

Exclude all sources of IR waves of a range of 850-900 nm from the line of sight IR receiver. Reflected waves can bring problems, but to a lesser extent. In a word, all interference

Do not foresee, but you can always remove their cause. Working distance between two IR devices

Fast Infrared. should not exceed one meter. Otherwise, the system will work unstable. The identity diagram of the IR port, which is indicated in the instructions for it, to put it mildly, does not withstand any criticism. Try to place the devices directly opposite each other. Foreign objects placed between the IR port and the working device will not help better work. There were cases where the cell phone in the case tried to connect through the IR port to the computer. Nothing turned out until the translucent case was removed.

Nowadays, as a rule, the term FIR is used to indicate the speed of 4 Mbps.

Connection

Very Fast Infrared. Connect an IR port to a personal computer

quite simple. But in any case it is recommended

spend ten minutes on careful study instructions

Ultra Fast Infrared. to the device. Even if you don't know anything new

from it, during the installation you will feel

Irlap is responsible for:

  • Access control.
  • Search for arrangements near devices.
  • Establishing and supporting bidirectional compound.
  • Distribution of primary and secondary roles among devices.

Confident.

Infrared Link Management Protocol Hardware

Connect the IR port to the connector LM-MUX (Link Management Multiplexer) и LM-IAS (LINK MANAGEMENT INFORMATION ACCESS SERVICE) .

LM-MUX is responsible for:

  • Separating the data stream to different communication channels.
  • Replace primary / secondary devices.

LM-IAS is responsible for:

  • Publish a list of available services.
  • Access client devices to published services.

COM port. Remember the COM port number - this is useful to you later. When connecting the IR port to the IRDA-connector of the motherboard, unlock the housing of your system unit and, reading the description of your motherboard, insert the connector (four-pin line) in the desired socket. The first wire is marked on the board number 1 or indicated in the description of the motherboard. The first IR port connector wire has a flower label. Display the rear cap free space and you can collect the case. Connect the flexible wire connector with an IR receiver / transmitter to the connector on the plug. The socket and the connector are very similar to the PS / 2-connector.

Software

Here is a description of the software configuration for the MS Windows 98 operating system. For other Microsoft operating systems, it is similar. Connect the IR port to computers with other operating

Systems are possible, but in the description of the IR port

It is indicated: "Designed to work with operating systems

Other Wireless Interfaces for Small Radius Action

Windows 95 and higher. " Experiment maybe

Without the use of wires, create a steady connection between

Computer and other devices (equipped IRDA Specifications include:IR ports). For example, it may be a scanner or
a printer. Although now most users acquire such Infrared Data AssociationYou will succeed.
Computer or, which is significantly more often, a cell phone. - IRDA, IR-port, infrared port - a group of standards describing the protocols of the physical and logical data transmission using the infrared range of light waves as a transmission medium.The last two devices have a fairly primitive input system.

When installing an IR port on COM waiting for you

with information. Mobile phone has become a convenient device for

Happy swimming. Complete to the device goes

  • CD, install drivers from which
  • It will not be any difficulties. Set the number correctly
  • The port to which the IR port is connected. Look,

Does the COM port are employed by another device,

The owner of the mobile device is network monitoring,

For example, internal modem. Also check the BIOS settings

not to say about such a service of almost all cellular For a parallel port - it must be installed

You can go to the worldwide network through your mobile. in ECP mode, not in Normal or SPP

(default value).

When installing an internal IR port worth making

Somewhat more manipulation with your hands. First of all, log in

Irphy Physical Level Specification (with SIR, MIR, FIR, VFIR, UFIR)In the BIOS and turn on the second COM port. how The rule below is the option to turn on IRDA. Protocol Specifications IRLAP, IRLMP, IrComm, Tiny TP, IROBEX, IRLAN, IRSIMPLE and IRFM (is in development).

Activate it. Next, install a half-duplex connection. If a

IRDA devices are able to transmit information at different speeds:

Your BIOS contains other settings, then put

SIR (HPSIR) - Serial Infrared - to the speed of 115200 bits / s

them in the "Default" mode. There will be problems -

MIR - Medium Infrared - up to 1.152 Mbps speed

2.

Read the instructions and experiment with the settings.

Harm or physical damage to your computer you can not

And on USB.

bring.

Load the operating system. If you did everything

That's right, the new device itself will be detected by the system.

Next, you will be offered to select the type of device. For reliability do

FIR - Fast Infrared - to 4 Mbps speed

It is manually. Select "IR devices" and then standard type

Devices. Install the virtual port and remember its number.

It will need you to configure most programs.

Menu "Properties: System" will acquire another item - "Devices

VFIR - Very Fast Infrared - up to 16 Mbps speed

IR communication. "

Overload the car. After this in the lower right corner

The icon appears in the form of a flashing light.

  1. You will see the properties of IR communications.
  2. Among all the settings it is worth allocating only "modes". Here
  3. You can enable IR communications and install

the time through which the IR port will look

UFIR - Ultra Fast Infrared - up to 96 Mbps speed

IR devices in a direct zone of visibility. Parameter

"Restricting the exchange rate before:" can be disabled.

Now, if you put in the visibility zone of your

IR port other activated

  1. IR device, then hear the sound and see

  2. On the screen similar to this:

  3. All your IR port is fully configured, now you can use it. For example, send a picture from the phone to a computer. Next, we suggest you look at the most fashionable and popular

  4. Application of the IR-port device in a ligament with a mobile phone - Mobile Internet.

  5. Mobile Internet

  6. Most cellular network operators operating in the GSM-900/1800 standard offer such a service as "mobile Internet". What it is? With the help of a cell phone,

  7. equipped with an IR receiver / transmitter and modem, you can enter the World Wide Web

  8. And use it as an ordinary Dial-UP connection. The advantages of this entry into the network are obvious. First of all, you will untie yourself from the annoying telephone wiring and become mobile (if you use a laptop). But the network through the mobile phone has its own minuses. We recommend to find out in advance how much (in monetary equivalent) will fall out to you such entertainment. The second minus lies in the speed of the mobile Internet. She is

  9. It is 9600 BPS and no more. With the commissioning of new technologies, this figure may soon

increase Mobile Internet configuration does not take much time. Here are the order of your actions. Make sure your cell phone is equipped with an IR port and modem. Turn on the IR port on your mobile phone. After that, place it in the action zone of the IR port connected to the computer (about 1 m).

Now you need to configure the work of the modem built into the phone. For this, you need to enter the "Setup" menu, then the "modem" and manually install the "standard modem 19200" (if you have a special driver for your cellular modem, then put it). When installing, do not forget to specify the correct virtual port, which was created when the IR port is connected to your computer. Everything,

Modem setting is completed. Overload the system. To set the connection you need to create a "new connection"

(Parameters for it you can learn from your cellular operator). Internet through a cell phone in your

disposal. Mobile Internet is a fairly important and interesting addition to your computer.

GIGA-IR - to 1 Gbps speed

Instead of imprisonment

[one]

The IR connection of the computer with other devices is valid at a relatively short distance. However, its ability is widely used among mobile equipment. Most likely, in the near future, communications on IR rays will give way to more perfect types of communication (for example, Bluetooth - several tens of meters). But so far, none of the manufacturers of motherboards has not abandoned IRDA, and you can buy an IR port with a peaceful soul. Although, before making a purchase, make sure that your phone and computer can transmit data in the infrared range. We hope that you familiarize yourself with this article without

Special problems can choose and include an IR port.

The hardware implementation, as a rule, is a pair of emitter, in the form of an infrared LED, and a receiver, as a photodiode located on each of the side of the communication line. The presence and transmitter and receiver on each of the parties is necessary to use bilateral data transmission protocols.

Partially used materials www.iceinet.ru

Source: Shems.h1.ru. External .

Добавить комментарий