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1.Voice control car movement
Voice Control Car Movement
Voice Control Car MovementExperimental ObjectiveExperimental Procedures and ResultsMain source code analysis
Experimental Objective
Understand and learn to control car movement using fixed basic semantics.
Experimental Procedures and Results
- First, enter the terminal:
cd /home/pi/project_demo/10.Basic_voice_control/1.Speech_contorl_sport/python3 speech_bash_control.py- After entering this interface, wake up the car using the wake-up phrase: Hello, Xiaoya in Chinese, or: Hi, Yahboom in English.
- After successfully waking up, the English version responds: "Hi, I'm here." Then, use fixed statements to control the robot.
Fixed Statement Table
| Wake-up Statement (International Users) | Operational Performance | Robot Response (English Version) |
|---|---|---|
| Robot Stop | Robot immediately ends its motion and enters the Stop state | OK, I'm stopping. |
| Go Ahead | Stop after moving forward for x seconds (x: program-defined, default: 5) | OK, let's go. |
| Back | Stop after moving backward for x seconds (x: program-defined, default: 5) | OK , I'm back. |
| Turn left | Stop after moving left for x seconds (x: program defined, default is 5) | OK, I'm turning left. |
| Turn right | Stop after moving right for x seconds (x: program defined, default is 5) | OK, I'm turning right. |
| Enter A mode | Stop after rotating left for x seconds (x: program defined, default is 5) | OK, I'm working on A mode. |
| Enter B mode | Stop after rotating right for x seconds (x: program defined, default is 5) | OK, I'm working on B mode. |
Main source code analysis
xspeed = 10stop_mytime = 5 try: while 1: time.sleep(0.2) num = mySpeech.speech_read() if num !=999 and num !=0: #print(num) mySpeech.void_write(num) Scommand = num if num <= 3 and num > 0:#parking stop_robot() #print(num) else: action_thread = threading.Thread(target=start_action) action_thread.daemon = True action_thread.start() num =999except: mySpeech.__del__() print("serial close")speed: Movement speed, 0-255, 0: Stop. stop_mytime: The number of seconds after which the movement should stop (5 seconds in this case). start_action: Executes an action based on fixed semantic recognition. stop_robot(): Stops the robot. speech_read: Reads the recognized message. void_write: Selects the message sequence to be sent back by the robot's speaker. This can be found in the protocol table.