The infrared receiver and Bluetooth technology of smart TV have their advantages and disadvantages, and the following is a comparison of the two technologies:
Infrared receiver (infrared remote control) :
Advantages:
- Low cost: infrared remote control because of its mature technology and popularity, the manufacturing cost is relatively low.
- Strong versatility: Integrated infrared receiver can receive a variety of infrared remote control signals, with strong versatility.
- Low power consumption: infrared receiver adopts low power consumption design, energy saving and environmental protection.
- Good stability: Infrared remote control because of its simple and direct point-to-point transmission mode, high stability.
Cons:
- Short transmission distance: the effective distance of the infrared remote control is generally 1-2 meters, and it needs to be aligned with the TV, which is not suitable for remote operation.
- Susceptible to interference: infrared signal transmission is easily blocked and environmental interference, not suitable for places with more obstacles.
- Cannot be encrypted: the information transmission of the infrared remote control is not encrypted, and the security is low.
- Single function: The function of the infrared remote control is relatively single and does not support intelligent operation.
Bluetooth technology:
Advantages:
- No alignment: Bluetooth remote control does not need to be aligned with the TV, which is more flexible.
- Long transmission distance: The effective distance of the Bluetooth remote control can reach about 10 meters, far beyond the infrared remote control.
- Can pass through the wall remote control: Bluetooth signal can pass through the wall, not limited by space.
- Intelligent: Bluetooth technology can integrate more intelligent functions, such as voice control.
Cons:
- High power consumption: the Bluetooth remote control consumes more power than the infrared remote control, especially the old version of Bluetooth technology.
- High cost: The cost of Bluetooth remote control is relatively high, which may increase the purchase cost of consumers.
- Easy to disconnect: The Bluetooth connection may be disconnected due to too far away or obstacles, and it needs to be re-paired.
- One-to-one binding: Bluetooth remote control is usually one-to-one binding, unlike the infrared remote control as easy to be controlled by other devices, access to the smart home system is more difficult.
In summary, infrared receiver and Bluetooth technology have their own advantages, and users need to decide according to their own habits and needs when choosing.