The remote control, as an accessory of the conference camera, is the remote control that is most frequently used. So what types of remote controls are available on the market? Only by understanding these types can we better screen which remote control is more suitable for us. In general, the remote controls on the market are classified into the following three categories according to signal classification:

    The first category: infrared remote control

    Advantages: The main principle of this remote control is to control the device through invisible light such as infrared rays. Then the infrared is turned into a digital signal that can be recognized by the control device, and this type of remote control can be remotely controlled at a longer distance.

    Disadvantages: However, due to the limitation of infrared, the infrared remote cannot pass through obstacles to remotely control the device or remotely control the device from a large angle, and its anti-interference ability is not good.

    The second category: 2.4GHz wireless remote control

    Advantages: With the gradual increase in the popularity of wireless remote control in remote controls, 2.4G remote control signal transmission can effectively solve the shortcomings of infrared remote control, allowing you to remotely operate the TV from all angles in the house. And it is a 360-degree operation without dead ends, and the omni-directional three-dimensional coverage is the advantage of the 2.4G remote control, and it is also the best one among the current remote control types.

    Disadvantages: 2.4G cost is too high, electronic products usually get what you pay for. The same 11-key remote control, 2.4G remote control is twice as expensive as the production cost of infrared remote control. Therefore, this kind of remote control usually only occupies the high-end market.

    The third category: Bluetooth remote control

    Advantages: The advantage of the Bluetooth remote control is that it can achieve a completely independent signal transmission channel through pairing with the device. Such a link channel can avoid interference between the wireless signals of different devices, but this is only a 2.4GHz technology add. In other words, a more perfect effect is achieved, and it acts as a double-protected signal transmission.

    Disadvantages: As far as the current situation is concerned, the Bluetooth remote control also has some shortcomings. For a common example, when we use this type of remote control for the first time, we need to manually pair the remote control and the device, and device operations may occur Delayed situation, and then need to be refreshed. And the cost is high, these are the problems that Bluetooth needs to solve.