Remote control device and method for improving sensitivity thereof

Abstract

The invention discloses a method for improving the sensitivity of a remote control device. The method comprises the following steps: S10, sensing the distance between the remote control device and a controlled terminal; and S20, setting actual transmitting power of the remote control device according to the sensed distance between the remote control device and the controlled terminal. According to the method, the actual transmitting power of the remote control device is set based on the distance between the remote control device and the controlled terminal, so that the actual transmitting power of the remote control device is increased when the remote control device is far away from the controlled terminal, and is lowered when the remote control device is close to the controlled terminal, so that the actual transmitting power of the remote control device can be adjusted to be in an optimal state, the problem of not taking both the actual transmitting power of the remote control device and the effective control distance into account can be avoided, and furthermore, the sensitivity of the remote control device is improved while the power consumption of the remote control device is lowered.

Description

technical field [0001] The invention belongs to the field of multimedia technology, and in particular relates to a method for improving the sensitivity of a remote control device and a remote control device using the method. Background technique [0002] Existing electrical products such as TVs, DVDs, and air conditioners are usually controlled by remote control devices to facilitate the use of users. The remote control device is used as a remote control terminal for transmitting signals in a wireless manner. As the controlled terminal, the electrical product is used to receive the signal transmitted by the remote terminal to realize the remote control of the user. [0003] The remote control end includes a remote control microprocessor, a keyboard matrix circuit, a signal generator and a drive circuit. The remote control microprocessor receives the user's operation instruction through the keyboard matrix circuit, and then the remote control microprocessor encodes the user...

AI Technical Summary

Problems solved by technology

[0005] However, when the user is using the remote control terminal, the distance between the remote control terminal and the controlled terminal often changes due to the uncertain location of the remote control terminal.

When the existing remote control terminal is far away from the controlled terminal, it will cause the controlled terminal to be unable to receive the signal transmitted by the remote control terminal or the received signal transmitted by the remote control terminal is too small to cause signal error. High, resulting in poor sensitivity of the remote control

If the transmission power of the signal generator of the remote terminal is increased, although this can improve the sensitivity of the remote terminal to control the controlled terminal when the distance from the controlled terminal is relatively long, this will cause the remote terminal to always be in a state of high power consumption, thereby Serious power consumption at the remote control terminal

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