0 Preface
With the development of short-range wireless communication technology, technologies such as WLAN, Bluetooth, IrDA, HomeRF, and ZigBee have been gradually applied in many fields such as smart home , industrial control, and environmental monitoring, and speech recognition technology has been used as an interdisciplinary subject. Widely used in industries, home appliances, medical and other fields. The combination of speech recognition and wireless communication technology in the field of smart home enables people to directly control home appliances through voice, enabling people to enjoy the application of modern technology in real life. ZigBee communication technology based on IEEE 802.15.4 protocol has the characteristics of low power consumption, low cost, short distance, safe and reliable, self-organizing network. This paper combines the 16-bit SPCE061A MCU with rich voice processing function and the RF chip CC2530 to design the ZigBee speech recognition node. It can communicate with the smart home control gateway based on SUMSUNG S3C6410 development platform. The gateway is processing. After the information, the state of the control device can be displayed, and communication with multiple child nodes in the home through the ZigBee wireless network, thereby realizing voice intelligent control of the home appliance.
1 overall system design
The overall structure of the system is shown in Figure 1. It mainly includes the gateway based on Samsung's S3C6410 platform, the voice ZigBee sub-node based on SPCE061A, the ZigBee sub-node controlled by electrical relay, and the ZigBee sub-node of electrical infrared control. Each child node and the gateway are connected by a star topology.
After the voice sub-node is trained, when the voice node collects and receives the voice control command, the voice recognition instruction is executed, and the corresponding control command is sent to the master node of the gateway through the CC2530 transceiver module. The master node will receive the control command and upload it to the gateway host through the serial port. After processing the information, the host sends the corresponding control command to the control child node through the master node, and the control child node executes the corresponding command after receiving the corresponding command. Action, control the controlled object.
2 system hardware design
(1) Gateway. The Samsung S3C6410 processor based on the ARM11 architecture is used to communicate with the ZigBee master node through the serial port. S3C6410 is based on ARM1176JZF-S 16/
Features:
- With multi-core(2-8 core) design to fit with different industrial needs
- Design snap lock ensures stable and security firm
- Humanization design achieved blind operation
- Both soldering and crimpng are avaliable
- Socket and internal made of zinc alloy, with well protected eletromagnetic and radio frequency interference
- Gold-plated, high strength corrosion resistance and electrical conductivity
- Shell made of material PBT, Stable electrical performance, high strength and resistance to pressure, high temperature resistance, anti-explosion, anti-corrosive
- Both cable connector to cable connector and cable connector to panel mounting are available
Waterproof Harness,Dayton Wire Harness,Modernize Wiring Harness,American Auto Wire Harness
Dongguan YAC Electric Co,. LTD. , https://www.yacenter-cn.com