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Technical Analysis Of The Difference Between Fs-fhss Simultaneous Interpretation System And Ir Simultaneous Interpretation System

Since it appeared in the 1920s, simultaneous interpretation equipment has developed for almost a century. According to reliable material, the earliest wireless simultaneous interpretation came in 1926. The wireless simultaneous interpretation technology runs through the development history of interpretation equipment.

Technical Analysis Of The Difference Between Fs-fhss Simultaneous Interpretation System And Ir Simultaneous Interpretation System

As the traditional wireless simultaneous interpretation, because it came out earlier and went through a long development, IR simultaneous interpretation is well-known. However, as the innovative wireless simultaneous interpretation technology, FS-FHSS simultaneous interpretation is relatively mysterious. 

The writer will make an analysis of the technical principle and technical character of IR and FS-FHSS, and then elaborate on the difference between two kinds of simultaneous interpretation technology in pre-sale configuration, device installation and commissioning, after-sale devices upgrading, and service from all perspectives.

One, analysis of technical principle and character

The operation principle of an IR simultaneous interpretation system is that it could transmit multiple channels of voice data by infrared ray.  And infrared ray is between the visible light and microwave in the electromagnetic spectrum. In the conference system industry, the near-infrared ray region is mostly applied, with the wavelength from 850nm to 900nm and the modulation frequency lower 10M( mostly from 2M to 8M). Nowadays, it is mostly applied in simultaneous interpretation systems and discussion systems. The signal transmission of the IR system is by the strength or the on-off of the infrared rays. ( The transmission terminal emits the Infrared ray with strength difference in according to the information feature, the receiver utilizes the photodiode to receive the infrared ray and transfer to the level signal carrying information)

On account of the physical character of infrared rays, IR simultaneous interpretation could meet the basic encryption demand by blocking the light, partition wall, and other physical ways. However,  to encrypt totally, except the basic physical ways, it could more count on the coding and decoding technique and the corresponding encryption technique to secure the information. Currently, the main digital IR interpretation systems utilize the encoding and decoding technology for encryption, rather than encrypting the data. Infrared ray is sensitive to sunlight, high-frequency light source, because its short wavelength short, the weak diffractive to obstacles, straight-line transmission, limited reflect capability, it is mostly applied in the indoor small or medium conference.  

Technical Analysis Of The Difference Between Fs-fhss Simultaneous Interpretation System And Ir Simultaneous Interpretation System

FS-FHSS Simultaneous Interpretation System

FS-FHSS simultaneous interpretation system utilizes GONSIN self-innovated FS-FHSS( Frequency Selection-Frequency Hopping Spread Spectrum) technology, it belongs to RF technology. It is the cutting-edge wireless technology innovated from the base of Direct Sequence Spread Spectrum and hopping technology.  Hopping frequency communication technology is the common spread-spectrum communication technology, widely applied in various communication fields.

Based on this technology, GONSIN innovated and developed the unique FS-FHSS technology. The system would monitor and select the spectrum before the conference to ensure the selected frequency free of interference. It could automatically choose the clean frequency band for communication. As the wireless signal is changing, it could avoid any inference by changing the frequency band to the selected clean frequency band. The frequency selection and frequency hopping double mechanism ensures stable communication. Meanwhile, the system utilizes unique encoding and decoding technology and 128 bits AES encryption and grouping technology which ensure the security of the communication.

Because FS-FHSS technology has a strong anti-interference capability, strong encryption, long communication distance, stable signal transmission, adjustable emission range, convenient installation and commissioning and etc, the system could be widely applied the indoor and outdoor conferences of all sizes. That technology could not only be applied to the FS-FHSS wireless simultaneous interpretation system, but also be applied to the discussion, voting, and other comprehensive conference application function.

Technical Analysis Of The Difference Between Fs-fhss Simultaneous Interpretation System And Ir Simultaneous Interpretation System

Base on the technical analysis above, we can reach the conclusion below:


IR Simultaneous Interpretation System: ★★★★★

FS-FHSS Simultaneous Interpretation System:  ★★★★★

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