-1down votefavorite

I am communicating with aa sensor using a source code from the manufacturing company. I want to add few lines to this code to save the data. However, I could not identify the vaiable that is being plotted. if someone can point it that would be great. the varibale is plotting distance. check the graph attached.

 #!/usr/bin/env python """ \example XEP_X4M200_X4M300_plot_record_playback_radar_raw_data.py #Target module: X4M200,X4M300,X4M03 #Introduction: XeThru modules support both RF and baseband data output. This is an example of radar raw data manipulation. Developer can use Module Connecter API to read, record radar raw data, and also playback recorded data. #Command to run: "python XEP_X4M200_X4M300_plot_record_playback_radar_raw_data.py -d com8" or "python3 X4M300_printout_presence_state.py -d com8" change "com8" with your device name, using "--help" to see other options. Using TCP server address as device name is also supported, e.g. "python X4M200_sleep_record.py -d tcp://192.168.1.169:3000". """ from __future__ import print_function, division import sys from optparse import OptionParser from time import sleep import numpy as np import matplotlib.pyplot as plt from matplotlib.animation import FuncAnimation import pymoduleconnector from pymoduleconnector import DataType __version__ = 3 def reset(device_name): mc = pymoduleconnector.ModuleConnector(device_name) xep = mc.get_xep() xep.module_reset() mc.close() sleep(3) def on_file_available(data_type, filename): print("new file available for data type: {}".format(data_type)) print(" |- file: {}".format(filename)) if data_type == DataType.FloatDataType: print("processing Float data from file") def on_meta_file_available(session_id, meta_filename): print("new meta file available for recording with id: {}".format(session_id)) print(" |- file: {}".format(meta_filename)) def clear_buffer(mc): """Clears the frame buffer""" xep = mc.get_xep() while xep.peek_message_data_float(): xep.read_message_data_float() def simple_xep_plot(device_name, record=False, baseband=False): FPS = 10 directory = '.' reset(device_name) mc = pymoduleconnector.ModuleConnector(device_name) # Assume an X4M300/X4M200 module and try to enter XEP mode app = mc.get_x4m300() # Stop running application and set module in manual mode. try: app.set_sensor_mode(0x13, 0) # Make sure no profile is running. except RuntimeError: # Profile not running, OK pass try: app.set_sensor_mode(0x12, 0) # Manual mode. except RuntimeError: # Maybe running XEP firmware only? pass if record: recorder = mc.get_data_recorder() recorder.subscribe_to_file_available(pymoduleconnector.AllDataTypes, on_file_available ) recorder.subscribe_to_meta_file_available(on_meta_file_available) xep = mc.get_xep() # Set DAC range xep.x4driver_set_dac_min(900) xep.x4driver_set_dac_max(1150) # Set integration xep.x4driver_set_iterations(16) xep.x4driver_set_pulses_per_step(26) xep.x4driver_set_downconversion(int(baseband)) # Start streaming of data xep.x4driver_set_fps(FPS) def read_frame(): """Gets frame data from module""" d = xep.read_message_data_float() frame = np.array(d.data) # Convert the resulting frame to a complex array if downconversion is enabled if baseband: n = len(frame) frame = frame[:n//2] + 1j*frame[n//2:] return frame def animate(i): if baseband: line.set_ydata(abs(read_frame())) # update the data else: line.set_ydata(read_frame()) return line, fig = plt.figure() fig.suptitle("example version %d "%(__version__)) ax = fig.add_subplot(1,1,1) ax.set_ylim(0 if baseband else -0.03,0.03) #keep graph in frame (FIT TO YOUR DATA) frame = read_frame() if baseband: frame = abs(frame) line, = ax.plot(frame) clear_buffer(mc) if record: recorder.start_recording(DataType.BasebandApDataType | DataType.FloatDataType, directory) ani = FuncAnimation(fig, animate, interval=FPS) try: plt.show() finally: # Stop streaming of data xep.x4driver_set_fps(0) def playback_recording(meta_filename, baseband=False): print("Starting playback for {}" .format(meta_filename)) player = pymoduleconnector.DataPlayer(meta_filename, -1) dur = player.get_duration() mc = pymoduleconnector.ModuleConnector(player) xep = mc.get_xep() player.set_playback_rate(1.0) player.set_loop_mode_enabled(True) player.play() print("Duration(ms): {}".format(dur)) def read_frame(): """Gets frame data from module""" d = xep.read_message_data_float() frame = np.array(d.data) if baseband: n = len(frame) frame = frame[:n//2] + 1j*frame[n//2:] return frame def animate(i): if baseband: line.set_ydata(abs(read_frame())) # update the data else: line.set_ydata(read_frame()) return line, fig = plt.figure() fig.suptitle("Plot playback") ax = fig.add_subplot(1,1,1) frame = read_frame() line, = ax.plot(frame) ax.set_ylim(0 if baseband else -0.03,0.03) #keep graph in frame (FIT TO YOUR DATA) ani = FuncAnimation(fig, animate, interval=10) plt.show() player.stop() def main(): parser = OptionParser() parser.add_option( "-d", "--device", dest="device_name", help="device file to use", metavar="FILE") parser.add_option( "-b", "--baseband", action="store_true", default=False, dest="baseband", help="Enable baseband, rf data is default") parser.add_option( "-r", "--record", action="store_true", default=False, dest="record", help="Enable recording") parser.add_option( "-f", "--file", dest="meta_filename", metavar="FILE", help="meta file from recording") (options, args) = parser.parse_args() if not options.device_name: if options.meta_filename: playback_recording(options.meta_filename, baseband=options.baseband) else: parser.error("Missing -d or -f. See --help.") else: simple_xep_plot(options.device_name, record=options.record, baseband=options.baseband) if __name__ == "__main__": main() 

programming-languagespython

n vote