NRK3301 chip intelligent switch voice solution design

Smart switches are emerging in the fields of mid- to high-end homes and villas, allowing this group of people to enjoy the smart experience brought by modern technology first, which will inevitably drive the comprehensive upgrading of users.

Smart lighting switch voice solution design requirements:

1. Smart switch controllers mainly meet two major needs: one is to use intelligent voice to control lighting equipment. The other is to protect the safety and privacy of users/residents from being leaked.

2. Lighting control

Residents can control all the lighting fixtures in the guest rooms, including downlights, bedside lamps, light strips, bathroom lights, corridor lights, etc. At the same time, through scene mode, they can also adjust the lamps and delay turning off the lights.

3. Security and Privacy

It is very important for a family to protect the personal privacy of its family members.

NRK3301 chip intelligent switch voice solution design:

The smart switch uses offline voice control technology, so you can perform offline voice control of lighting equipment without the need for an Internet connection or downloading an APP. This eliminates the risk of privacy leakage and can effectively protect the personal privacy of family members.

Smart lighting switch manufacturers prefer Jiuxin Electronics' low-cost NRK3301 offline voice chip to realize voice-controlled switches. The NRK3301 voice recognition chip is an offline voice recognition chip that uses the latest neural network (TDNN) algorithm, with the advantages of accurate recognition, low misjudgment rate, and reliable recognition at a distance of 5 meters.

The smart voice switch with NRK3301 voice recognition chip can turn on and off the lights with just one sentence. Whether you are coming home from get off work or getting up in the middle of the night, the lights will be turned on for you immediately with one command. Don’t want to get up to turn off the lights on winter nights? Just shout "Xiaoyou Xiaoyou" and it will do it for you easily.

NRK3301 chip intelligent switch voice solution design

NRK3301 chip intelligent switch entry content (customizable):

1. Welcome to use XXX smart voice switch. I am Xiaoyou. You can call me "Xiaoyou Xiaoyou" to wake me up.

2. Xiaoyou Xiaoyou——I am here;

3. Turn on the living room lights - a good owner has turned on the mood lights;

4. Turn off the living room lights - a good owner has turned off the atmosphere lights;

5. Turn it up a bit brighter - good owners have turned it up to the brightest;

6. Turn it down a bit - good owners have turned it down to the darkest setting;

7. Turn on the stair light - Good owner, the stair light has been turned on;

8. Turn off the stair lights - Good owner, the stair lights have been turned off;

NRK3301 speech recognition chip pin diagram:

Functional features of NRK3301 speech recognition chip:

High-performance 32-bit RISC core, main frequency 240MHz, support hardware floating-point operation;

Built-in 1MB SPI FLASH;

Offline speech recognition uses the latest neural network (TDNN) algorithm, which has the advantages of accurate recognition, low misjudgment rate, and reliable recognition at a distance of 5 meters;

Speech noise reduction algorithm: It filters out steady-state noise and has a good suppression effect on dynamic noise, and can accurately identify speech even in noisy environments;

Support MP3, WAV, WMA, APE, FLAC, AAC, MP4, M4A, AIF, AIFC audio decoding

Sampling rate supports 8KHz / 11.025KHz / 16KHz / 22.05KHz / 24KHz / 32KHz / 44.1KHz / 48KHz

Three-channel stereo analog MUX

VBAT is 2.2V to 5.5V, and DDIO is 2.2V to 3.6V.

Circuit reference diagram of NRK3301 voice chip:

Jiuxin Electronics' NRK3301 intelligent voice interactive control technology application solution in the smart lighting industry combines the characteristics of the lighting industry and optimizes component cost, noise resistance, voice recognition accuracy, voice control distance, human-computer interaction methods, etc. After mass production, user verification and market verification, it is proved that this solution is mature, meets user needs, and is suitable for large-scale application in this industry.