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2022
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07
How many categories are there for remote controls?
Author:
In today's society, there are many places where remote controls are needed, such as home appliances, audiovisual equipment, and even the pet and industrial industries. And there are also many categories of remote controls, and I have personally written several for reference only!
First category: infrared remote control
Simply put, the principle of this remote control is to first program the corresponding code values between the remote control and the machine being controlled, and then use infrared emission to achieve remote control operation. This remote control is currently the most common and widely used remote control method, with the advantages of being cheap and easy to operate. There are also many manufacturers producing this type of remote control, especially in Shenzhen, a developed first tier city in China. Therefore, enterprises producing household appliances usually look for remote control manufacturers in Shenzhen.
The advantage of infrared remote control is that it does not affect the surrounding environment and does not interfere with other electronic devices. The disadvantage is that it cannot penetrate walls, there cannot be any barrier between the wireless remote control and the receiver, the controllable distance is short, and the sensitivity is not high.
Second category: 2.4GHz wireless remote control
2.4G is a wireless technology, abbreviated as 2.4G wireless technology due to its frequency range between 2.400GHz and 2.4835GHz.
The available frequency points of a 2.4GHz remote control are related to the transmission power, and WIFI is a 2.4G product. Generally, the communication distance of the remote control is similar to that of WIFI. The remote control using this transmission technology can be unaffected by obstacles, and the remote control distance will be greatly enhanced, effectively solving the problem of difficult remote control
The advantage of 2.4G is that compared to traditional infrared remote controls, wireless 2.4G remote controls eliminate the issue of directionality. We can use the remote control to operate devices from any position and angle inside the house without worrying about the device not receiving signals. Additionally, this is definitely a great blessing for remote controllers with empty mouse operation. In addition, the 2.4GHz signal transmission bandwidth is larger, which allows the remote control to perform more complex operations, such as voice and tactile operations, making the remote control experience more outstanding.
Third category: Bluetooth remote control
The advantage of Bluetooth remote control is that it achieves a completely independent signal transmission channel by pairing with the TV, thereby avoiding interference between wireless signals from different devices. And due to the excellent encryption of Bluetooth signal transmission, we don't have to worry about the transmitted signal being obtained by others. As a supplement to 2.4GHz technology, Bluetooth remote controls are also a development trend.
For now, there are also some issues with Bluetooth remote controls, such as the need to manually pair the remote control with the device during initial use, resulting in high device operation latency and high costs. These are all issues that Bluetooth needs to address.
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