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Technical data for remote control automatic doors by xianjun

Automatic door opener is to use a variety of distant radio signals on the remote control device to control agency. These signals are distant receiving equipment to receive, you can order or other appropriate mechanical drive or electronic equipment to complete the various operations. As a remote control and infrared remote control the complementary type, in the garage doors, electric gate, automatic barrier remote control, burglar alarm, industrial control and wireless intelligent home field has been widely used.
Automatic door opener system components
Commonly used in automatic door remote control transmitter and receiver system is usually divided into two parts.
Transmitter can be divided into two types: the remote control and transmitter module. Remote control and remote control module for use for the remote control can be used independently as a whole to the external wiring pinout with the pile head; and remote control module in the circuit when a component to use, according to the pin definition application, the advantage of using the remote control module and the application circuit can be seamlessly connected, small size, low price and best use, but users must truly understand the circuit, or otherwise use the remote control more convenient.
Receiving part of the generally divided into two types, namely, with the super-regenerative receiver superheterodyne approach, super-regenerative demodulator circuits, also known as super-regenerative detector circuit, it is actually working in the state of renewable intermittent oscillation detection circuit. Superheterodyne superheterodyne radio demodulation circuit and the same, it is to set a local oscillation circuit oscillation signal and the received carrier frequency signal mixer, got IF (typically 465kHz) signal, the IF amplification and detector, demodulate the data signal. As the carrier frequency is fixed, so the circuit is simpler than the radio. Superheterodyne receiver stability, high sensitivity, anti-interference ability is relatively good; super-regenerative receiver-type small, cheap.
Automatic door opener operating frequency and coding
Remote control automatic doors for the common carrier frequency 315mHz or 433mHz, remote control using state of the opening band, in this frequency band, transmission power less than 10mW, the coverage is less than 100m or less than the scope of this unit, you can not After the “Radio Management Committee” for approval and free to use. Provisions of China’s opening band 315mHz, while Europe and the United States provides for the 433mHz, so the products exported to these countries should use the 433mHz remote.
Remote control automatic doors, there are two commonly used encoding types: fixed code and rolling code two types of rolling code is a fixed code upgrade products, now where confidentiality is a requirement, use the scroll encoding.
Rolling code encoding has the following advantages:
1 coding capacity, the address code number greater than 10 million units, the use of “re-code” a very small probability;
2. Confidentiality type strong, after each launch automatically change encoding, others can not use “code detection device” to obtain the address code;
3 of the code is easy, rolling code with learning memory function, without the use of iron, can live on in the user code, and into a receiver can learn up to 14 different transmitters, in the use of a high degree of flexibility;
4. Error is small, because the advantages of coding, making the receiver did not receive the key when the malfunction is almost zero.
Automatic door opener and the difference between the infrared remote control
Infrared remote control and wireless remote control is a different carrier for the infrared remote control is used to send infrared control signals, which are characterized by a directional, can not have a stop, distance is not more than 7 meters from electromagnetic interference, TV remote control is infrared remote control; automatic door with remote control radio waves to transmit control signals, it is characterized by non-directional, you can not “face to face” control, distance (up to tens of meters or even kilometers ), susceptible to electromagnetic interference. Needed or no directional control through remote areas, such as industrial control, etc., use the remote control automatic doors easier to solve.
Automatic door opener remote distance factor
Of the automatic door opener from the main factors are the following:
1 Receiver Sensitivity: Receiver sensitivity receiver, remote control distance increases, but susceptible to interference caused by the malfunction or loss of control;
2 Transmit Power: Transmit power for big distance, but the power consumption, prone to interference;
3 antenna: the use of linear antennas, and parallel to each other, the remote distance, but occupy a large space, in use the antenna stretched, straightened to increase the remote distance;
4 height: the higher the antenna, remote control distance farther, but by objective conditions;
5. Stop: the current use of wireless remote control with the state of the UHF band, the propagation characteristics and light approximation, linear propagation, diffraction small, between the transmitter and receiver block where the wall will greatly discount the remote distance, if the reinforced concrete walls, as conductor of the radio wave absorption, far worse.
In this technology era of excess, is also changing the remote control automatic doors, automatic doors at the recent show, could have gotten a full range of precise control of all operating parameters of the automatic door GMT French original automatic door can be used to describe the breathtaking, you can use remote control unit accurate to centimeters automatic doors road.

Chinentech auto door limited is one of leading manufacturer, Company in China, who professionally in automatic door system, automatic door opener, automatic door operator. Such as electric gate opener , electric automatic door etc.

Article Source: http://www.earticlesonline.com/Article/Technical-data-for-remote-control-automatic-doors-/1195801

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