Product Introduction
The HS-EV160 elevator voice control module, as the voice solution for the entire intelligent voice elevator product, can achieve completely contactless far-field voice wake-up, voice recognition, voice broadcasting, and voice control elevator operation functions. The module applies the leading remote noise reduction technology in the industry, which can support high-precision wake-up and recognition of 3-8 meters, achieving full voice operation of elevator products. A high-performance processor paired with two Kaboni advanced complementary array microphones achieves beamforming, greatly improving the speech recognition accuracy of the module.
Adopting high-performance recognition solutions to complete speech detection, speech feature extraction, and recognition processes, and supporting personalized customization of wake-up words and offline command entries.

Product Features
1) Support customization of 100 offline voice commands to meet the diverse language needs of passengers in residential areas, office buildings, hospitals, and other areas.
2) Adopting a pure offline voice solution to achieve control of elevator functions such as up and down floors.
3) Adopting a dual microphone array, the Trangulation noise reduction technology and AEC echo cancellation technology independently patented by Sizheng achieve a recognition rate of over 97% in a quiet environment of 5 meters, and can also recognize normally at a distance of 10 meters.
4) Supports multiple interfaces such as UART/RS485/IO switches, compatible with most mainstream elevator equipment, and can quickly connect and test with major elevator manufacturers, solution providers, and elevator suppliers to achieve rapid mass production. It is a low-cost and cost-effective module.
5) Customizable options: including offline wake-up words, offline command words, and user communication interface protocols.

Product Features
1) Dual MIC array
Internally, beamforming algorithm is used to achieve directional long-distance sound pickup.
2) Far-field pickup
Adopting far-field pickup, the internal software uses NS noise reduction and AGC amplification to overcome the external noise interference caused by far-field pickup.
3) Awakening technology
Adopting unique wake-up technology, it shields false recognition caused by external noise in non wake-up scenarios.
4) Rich external interfaces (customizable)
The external interface can support UART, RS485, IO switch values, etc., making it easy to connect and integrate quickly, forming its own unique voice product.
5) Command entry (customizable)
Command entries can be quickly customized and developed according to customer needs, and they can quickly respond to customer market demands; And the command entries can be scenarized, allowing for the setting of interactive scenarios similar to dialogue

Definition of Control Board Interface