def test_i2c_alltargets(self):
""" Queries each cartridge and cartridge holder for each EEPROM spot,
expecting a response
Conditions:
Pass: Each target gives an accurate EEPROM response
Fail: Any timeouts or dropped packets from any target
"""
t = ResponseData()
logging.info(
"Querying first 30 EEPROM locations for each cartridge and the cartridge holder")
for i in range(0, 30):
string = 'E'+str(i)
response = self.commandparser('M244', 'C0', string)
if response.failed:
return response
response = self.commandparser('M244', 'C1', string)
if response.failed:
return response
response = self.commandparser('M244', 'C2', string)
if response.failed:
return response
t.success("All EEPROM locations successfully queried\n")
return t
def test_Diagnostics_trial_house(self):
t = ResponseData()
# Test Failure Criteria
pressure_house_start = 30 # Beginning of house air pressure test
pressure_house_end = 80 # Highest pressure reached while testing house air
pressure_interval = 5 # Interval in which the pressure increases between bounds
global current_ramp_cycle
with cd(path):
g = self.g
task = AnalogInputTask()
self.close_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
# Ensure Solenoid is closed
self.close_solenoid()
# Set tank pressure to 40psi
self.pneumatics.setPumpPressure(40)
logging.info("Testing Output Pressure (Source: House Air)")
self.open_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
# Ensure Solenoid is closed
self.close_solenoid()
# Set tank pressure to 40psi
self.pneumatics.setPumpPressure(40)
current_ramp_cycle = i
# Interval added / subtracted to help make range function more
# intuitive
for p in range(pressure_house_start, pressure_house_end + pressure_interval, pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
for p in range(pressure_house_end, pressure_house_start - pressure_interval, -pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
self.close_house_air()
self.daq.display_test_results()
t.success("Pressure test run successfully")
return t
def __init__(self, test):
"""Initializes the DAQ with a task, and a logger"""
self.task1 = test.task
self.data = {}
self.log = Logger(test)
self.g = test.g
self.wait_time_s = test.wait_time_s
self.sample_rate = test.sample_rate
self.checkpoint = test.checkpoint
self.u = ResponseData()
self.test = test
def commandparser(self, command, p1='', p2='', p3=''):
""" Checks for errors on sent commands, returns response.
Args:
command (string): The M or G code being sent
p1 (string): first argument for the M Code
p2 (string): second argument for the M Code
p3 (string): third argument for the M Code
Returns:
int: The response sent from the printer. Returns 0 if the packet was
dropped or if the request timed out.
"""
u = ResponseData()
resp = self.g.write(command + ' ' + p1 + ' ' + p2 + ' ' + p3,
resp_needed=True)
logging.debug(
str(command + ' ' + p1 + ' ' + p2 + ' ' + p3 + ' Response: ' +
resp))
PacketSplit = re.findall('Packet', resp)
TimeoutSplit = re.findall('Timeout', resp)
if len(PacketSplit):
u.fail("Dropped " + str(len(PacketSplit)) +
" Packets from address " + str(p1) + ". " + str(p1) +
" is either not present or not communicating.")
if len(TimeoutSplit):
u.fail(str(len(TimeoutSplit)) + " Timeouts from " + str(p1))
u.success(resp)
return u
def commandparser(self, command, p1='', p2='', p3=''):
""" Checks for errors on sent commands, returns response.
Args:
command (string): The M or G code being sent
p1 (string): first argument for the M Code
p2 (string): second argument for the M Code
p3 (string): third argument for the M Code
Returns:
int: The response sent from the printer. Returns 0 if the packet was
dropped or if the request timed out.
"""
u = ResponseData()
resp = self.g.write(
command + ' ' + p1 + ' ' + p2 + ' ' + p3, resp_needed=True)
logging.debug(
str(command + ' ' + p1 + ' ' + p2 + ' ' + p3 + ' Response: ' + resp))
PacketSplit = re.findall('Packet', resp)
TimeoutSplit = re.findall('Timeout', resp)
if len(PacketSplit):
u.fail("Dropped " + str(len(PacketSplit)) + " Packets from address " + str(
p1) + ". " + str(p1) + " is either not present or not communicating.")
if len(TimeoutSplit):
u.fail(str(len(TimeoutSplit)) + " Timeouts from " + str(p1))
u.success(resp)
return u
def test_cart1_info(self):
""" Retrieves cartridge information from Cartridge 1
Conditions:
Pass: Gives a response to M245
Fail: Any timeouts or dropped packets
"""
t = ResponseData()
logging.info("Retrieving Cartridge 1 information\n")
cart1status = self.commandparser('M245', 'C1')
if cart1status.failed:
return cart1status
parsedStatus = self.parseCartridgeStatus(cart1status.data, "Cartridge 1")
if parsedStatus.failed:
return parsedStatus
t.success("Cartridge 1 info retrieved successfully\n")
return t
def test_set_pressure(self):
""" Sets tank pressure, then tests the E-Reg at various
pressures and reads it back.
Conditions:
Pass: Reachs the enumerated pressures in a reasonable amount of
time and accuracy, after achieving the correct tank pressure
Fail: After the set period of time, is not at the correct pressure
for any of the above.
"""
PASSING_CRITERIA = .5
t = ResponseData()
logging.info("Setting Pressure, checking accuracy\n")
self.setPumpPressure(40)
for i in range(10):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure > 35:
break
sleep(1)
if i is 9:
t.fail("Tank Pressure too low")
return t
for i in range(0, 30, 5):
if pumpPressure > i:
self.setRegulatorPressure(i)
sleep(1)
regulatorPressure = self.readRegulatorPressure()
logging.debug("Reg pressure: {} PSI".format(regulatorPressure))
if i - regulatorPressure > PASSING_CRITERIA:
t.fail("Pressure too low at {} PSI ({})".format(
i, regulatorPressure))
return t
elif i - regulatorPressure < -PASSING_CRITERIA:
t.fail("Pressure too high at {} PSI ({})".format(
i, regulatorPressure))
return t
self.setRegulatorPressure(0)
else:
t.success("Pressure is appropriate")
return t
def __init__(self, test):
"""Initializes the DAQ with a task, and a logger"""
self.task1 = test.task
self.data = {}
self.log = Logger(test)
self.g = test.g
self.wait_time_s = test.wait_time_s
self.sample_rate = test.sample_rate
self.checkpoint = test.checkpoint
self.u = ResponseData()
self.test = test
def test_set_pressure(self):
""" Sets tank pressure, then tests the E-Reg at various
pressures and reads it back.
Conditions:
Pass: Reachs the enumerated pressures in a reasonable amount of
time and accuracy, after achieving the correct tank pressure
Fail: After the set period of time, is not at the correct pressure
for any of the above.
"""
PASSING_CRITERIA = .5
t = ResponseData()
logging.info(
"Setting Pressure, checking accuracy\n")
self.setPumpPressure(40)
for i in range(10):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure > 35:
break
sleep(1)
if i is 9:
t.fail("Tank Pressure too low")
return t
for i in range(0, 30, 5):
if pumpPressure > i:
self.setRegulatorPressure(i)
sleep(1)
regulatorPressure = self.readRegulatorPressure()
logging.debug("Reg pressure: {} PSI".format(regulatorPressure))
if i - regulatorPressure > PASSING_CRITERIA:
t.fail(
"Pressure too low at {} PSI ({})".format(i, regulatorPressure))
return t
elif i - regulatorPressure < -PASSING_CRITERIA:
t.fail(
"Pressure too high at {} PSI ({})".format(i, regulatorPressure))
return t
self.setRegulatorPressure(0)
else:
t.success("Pressure is appropriate")
return t
def disableAndReadSolenoid(self, solenoid):
""" Activates the solenoid and reads the status
Deactivates the given solenoid using M381, and reads back
the status.
Args:
solenoid (int): Desired Solenoid
Returns:
int: Solenoid Status
"""
u = ResponseData()
solenoidStatus = self.g.write('M381', resp_needed=True).split()
solenoidI2CStatus = self.commandparser('M253', 'C1').split()
if solenoidI2CStatus.failed:
u.fail(solenoidI2CStatus)
return u
else:
logging.debug(repr(solenoidI2CStatus[3]))
u.success(int(solenoidI2CStatus[3]))
return u
def readLaser(self):
""" Return the laser reading
Queries the laser value, which is sent to Marlin by I2C.
Args:
None
Returns:
The value of the laser
"""
u = ResponseData()
logging.info("Reading Laser")
M234Response = self.g.write("M234", resp_needed=True).split()
logging.debug(M234Response)
if int(M234Response[1]) > self.laserMax:
u.fail("Too far")
return u
else:
u.data = int(M234Response[1])
return u
def parseCartridgeStatus(self, cartridgeStatus, cartridgeNumber):
""" Checks the cartridge status
Parses and dispalys the cartridge status, and then checks to see if the
flash and eeprom have been loaded correctly, based on the firmware
version and the cartridge type.
Args:
cartridgeStatus (string): The string to be parsed
cartridgeNumber (string): Which cartridge it is
("Cartridge 0", "Cartridge 1", or "Cartridge Holder")
Returns:
None
"""
u = ResponseData()
infoList = re.split('\W+', cartridgeStatus)
try:
if (len(infoList) >= 18):
logging.info("%s Info", cartridgeNumber)
logging.debug(infoList)
logging.debug("-------------------------------------")
logging.debug("Cartridge Serial Number: %s", infoList[2])
logging.debug("Cartridge Firmware Version: %s", infoList[18])
logging.debug("Cartridge Programmer Station: %s", infoList[5])
logging.debug("Cartridge Type: %s", infoList[8])
logging.debug("Cartridge Size: %s", infoList[11])
logging.debug("Cartridge Material: %s", infoList[14])
if (int(infoList[18]) == 255):
u.fail(
"{} FLASH not loaded properly, or cartridge is out of date\n".format(cartridgeNumber))
return u
if (int(infoList[8]) == 15) and (cartridgeNumber != "Cartridge Holder"):
u.fail(
"{} EEPROM not loaded properly\n".format(cartridgeNumber))
u.data = "Success"
return u
except:
u.fail("{} Status Parse Failed. Received Message: {}".format(cartridgeNumber, cartridgeStatus))
return u
def disableAndReadSyringe(self):
""" Activates the syringe and reads the status
Deactivates the given syringe using M381, and reads back
the status.
Args:
syringe (int): Desired Syringe
Returns:
int: Syringe Status
"""
u = ResponseData()
self.g.write('M42 P75 S0')
sleep(2)
syringeStatus = self.commandparser("M251").split()
if syringeStatus.failed:
u.fail(syringeStatus)
return u
else:
logging.debug(syringeStatus)
u.success(int(syringeStatus[3]))
return u
def test_solenoid(self):
""" Opens and closes the solenoid, checking the status over I2C for both
states.
Conditions:
Pass: I2C command reads correct solenoid condition
Fail: I2C command incorrectly reads solenoid condition
"""
t = ResponseData()
logging.debug("Activating Solenoid")
if self.activateAndReadSolenoid(1) is not 1:
t.fail("Solenoid not activated")
return t
sleep(.25)
logging.debug("Deactivating Solenoid")
if self.disableAndReadSolenoid(1) is not 0:
t.fail("Solenoid not activated")
return t
t.success("Solenoid operating correctly")
return t
def test_solenoid(self):
""" Opens and closes the solenoid, checking the status over I2C for both
states.
Conditions:
Pass: I2C command reads correct solenoid condition
Fail: I2C command incorrectly reads solenoid condition
"""
t = ResponseData()
logging.debug("Activating Solenoid")
if self.activateAndReadSolenoid(1) is not 1:
t.fail("Solenoid not activated")
return t
sleep(.25)
logging.debug("Deactivating Solenoid")
if self.disableAndReadSolenoid(1) is not 0:
t.fail("Solenoid not activated")
return t
t.success("Solenoid operating correctly")
return t
def disableAndReadSolenoid(self, solenoid):
""" Activates the solenoid and reads the status
Deactivates the given solenoid using M381, and reads back
the status.
Args:
solenoid (int): Desired Solenoid
Returns:
int: Solenoid Status
"""
u = ResponseData()
solenoidStatus = self.g.write('M381', resp_needed=True).split()
solenoidI2CStatus = self.commandparser('M253', 'C1').split()
if solenoidI2CStatus.failed:
u.fail(solenoidI2CStatus)
return u
else:
logging.debug(repr(solenoidI2CStatus[3]))
u.success(int(solenoidI2CStatus[3]))
return u
def disableAndReadSyringe(self):
""" Activates the syringe and reads the status
Deactivates the given syringe using M381, and reads back
the status.
Args:
syringe (int): Desired Syringe
Returns:
int: Syringe Status
"""
u = ResponseData()
self.g.write('M42 P75 S0')
sleep(2)
syringeStatus = self.commandparser("M251").split()
if syringeStatus.failed:
u.fail(syringeStatus)
return u
else:
logging.debug(syringeStatus)
u.success(int(syringeStatus[3]))
return u
def test_for_leaks(self, speed='slow'):
""" Tests tank pressure for stability
Sets the tank pressure, and makes sure it reaches an acceptably close
level within a set period of time. Then checks for a set period of time
to make sure it mantains a close level to this value.
Conditions:
Pass: Reachs the set tank pressure in a reasonable amount of
time with a set accuracy, then makes sure it mantains that
pressure.
Fail: After the set period of time, the tank never reaches the
appropriate pressure.
Fail: After the tank reaches pressure, is unable to hold it for a
set length of time.
"""
setPressure = 40
getToPressureTime_s = 60
pressureMeasurementTime_slow_s = 540
pressureMeasurementTime_fast_s = 20
measurement_delay_time_slow_s = 60
measurement_delay_time_fast_s = 10
t = ResponseData()
passingPressureRange_psi = 1
allowed_leak_amount_psi = .1
logging.info("Testing for leaking Pressure Tank\n")
self.setPumpPressure(setPressure)
for i in range(getToPressureTime_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure > setPressure - passingPressureRange_psi:
break
sleep(1)
if i is getToPressureTime_s - 1:
t.fail("Tank Pressure did not reach acceptable pressure range")
return t
self.setPumpPressure(0)
if speed is not 'fast':
logging.info(
"Waiting for {} seconds to allow time to stabilize".format(
measurement_delay_time_slow_s))
sleep(measurement_delay_time_slow_s)
logging.info(
"Starting to analyse pressure. This will take {} Seconds ({} Minutes)"
.format(pressureMeasurementTime_slow_s,
pressureMeasurementTime_slow_s / 60.0))
else:
logging.info(
"Waiting for {} seconds to allow time to stabilize".format(
measurement_delay_time_fast_s))
sleep(measurement_delay_time_fast_s)
logging.info(
"Starting to analyse pressure. This will take {} Seconds ({} Minutes)"
.format(pressureMeasurementTime_fast_s,
pressureMeasurementTime_fast_s / 60.0))
startingPumpPressure = self.readPumpPressure()
if speed is not 'fast':
for i in range(pressureMeasurementTime_slow_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure < startingPumpPressure - allowed_leak_amount_psi:
t.fail(
"Tank Pressure too low, likely a leak. Pressure: {}. Time: {} Seconds"
.format(pumpPressure, i))
return t
sleep(1)
if i is pressureMeasurementTime_slow_s - 1:
t.success("Tank is mantaining pressure correctly")
return t
t.success("Tank is mantaining pressure correctly")
return t
else:
for i in range(pressureMeasurementTime_fast_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure < startingPumpPressure - allowed_leak_amount_psi:
t.fail(
"Tank Pressure too low, likely a leak. Pressure: {}. Time: {} Seconds"
.format(pumpPressure, i))
return t
sleep(1)
if i is pressureMeasurementTime_fast_s - 1:
t.success("Tank is mantaining pressure correctly")
return t
t.success("Tank is mantaining pressure correctly")
return t
def test_Diagnostics_trial_pump(self):
t = ResponseData()
# Test Failure Criteria
pump_to_pressure_time = 60
pump_pressure = 40
pump_pressure_acceptable_bound = 2
pressure_tank_start = 0 # Beginning pressure while testing for tank pressure
pressure_tank_end = 30 # Highest pressure reached while testing on tank pressure
pressure_interval = 5 # Interval in which the pressure increases between bounds
global current_ramp_cycle
with cd(path):
g = self.g
task = AnalogInputTask()
self.close_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
self.close_solenoid()
# Set tank pressure to pump pressure
self.pneumatics.setPumpPressure(pump_pressure)
# Wait for pump to reach pressure
for i in range(pump_to_pressure_time):
p = self.pneumatics.readPumpPressure()
if p > pump_pressure - pump_pressure_acceptable_bound:
break
if i is pump_to_pressure_time - 1:
t.fail("Didn't reach pump pressure")
return t
sleep(1)
logging.debug("Pump Pressure: {}".format(p))
logging.info("Testing Output Pressure (Source: Tank)")
current_ramp_cycle = i
# Interval added / subtracted to help make range function more
# intuitive
for p in range(pressure_tank_start,
pressure_tank_end + pressure_interval,
pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
if (p >= 10 or p <= 25):
t = self.daq.u
return t
for p in range(pressure_tank_end,
pressure_tank_start - pressure_interval,
-pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
print(self.daq.u.data.split())
t = self.daq.u
return t
self.close_house_air()
self.daq.display_test_results()
t.success("Pressure test run successfully")
return t
def test_for_leaks(self, speed = 'slow'):
""" Tests tank pressure for stability
Sets the tank pressure, and makes sure it reaches an acceptably close
level within a set period of time. Then checks for a set period of time
to make sure it mantains a close level to this value.
Conditions:
Pass: Reachs the set tank pressure in a reasonable amount of
time with a set accuracy, then makes sure it mantains that
pressure.
Fail: After the set period of time, the tank never reaches the
appropriate pressure.
Fail: After the tank reaches pressure, is unable to hold it for a
set length of time.
"""
setPressure = 40
getToPressureTime_s = 60
pressureMeasurementTime_slow_s = 540
pressureMeasurementTime_fast_s = 20
measurement_delay_time_slow_s = 60
measurement_delay_time_fast_s = 10
t = ResponseData()
passingPressureRange_psi = 1
allowed_leak_amount_psi = .1
logging.info(
"Testing for leaking Pressure Tank\n")
self.setPumpPressure(setPressure)
for i in range(getToPressureTime_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure > setPressure - passingPressureRange_psi:
break
sleep(1)
if i is getToPressureTime_s - 1:
t.fail(
"Tank Pressure did not reach acceptable pressure range")
return t
self.setPumpPressure(0)
if speed is not 'fast':
logging.info("Waiting for {} seconds to allow time to stabilize".format(measurement_delay_time_slow_s))
sleep(measurement_delay_time_slow_s)
logging.info("Starting to analyse pressure. This will take {} Seconds ({} Minutes)".format(pressureMeasurementTime_slow_s, pressureMeasurementTime_slow_s / 60.0))
else:
logging.info("Waiting for {} seconds to allow time to stabilize".format(measurement_delay_time_fast_s))
sleep(measurement_delay_time_fast_s)
logging.info("Starting to analyse pressure. This will take {} Seconds ({} Minutes)".format(pressureMeasurementTime_fast_s, pressureMeasurementTime_fast_s / 60.0))
startingPumpPressure = self.readPumpPressure()
if speed is not 'fast':
for i in range(pressureMeasurementTime_slow_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure < startingPumpPressure - allowed_leak_amount_psi:
t.fail("Tank Pressure too low, likely a leak. Pressure: {}. Time: {} Seconds".format(pumpPressure, i))
return t
sleep(1)
if i is pressureMeasurementTime_slow_s-1:
t.success("Tank is mantaining pressure correctly")
return t
t.success("Tank is mantaining pressure correctly")
return t
else:
for i in range(pressureMeasurementTime_fast_s):
pumpPressure = self.readPumpPressure()
logging.debug("Pump Pressure: {} PSI".format(pumpPressure))
if pumpPressure < startingPumpPressure - allowed_leak_amount_psi:
t.fail("Tank Pressure too low, likely a leak. Pressure: {}. Time: {} Seconds".format(pumpPressure, i))
return t
sleep(1)
if i is pressureMeasurementTime_fast_s-1:
t.success("Tank is mantaining pressure correctly")
return t
t.success("Tank is mantaining pressure correctly")
return t
class DAQ(object):
"""Interface for the NI DAQ"""
def __init__(self, test):
"""Initializes the DAQ with a task, and a logger"""
self.task1 = test.task
self.data = {}
self.log = Logger(test)
self.g = test.g
self.wait_time_s = test.wait_time_s
self.sample_rate = test.sample_rate
self.checkpoint = test.checkpoint
self.u = ResponseData()
self.test = test
def record(self, samples, cycle, pressure):
"""Starts a thread that launches a record_worker"""
self._rec_thread = Thread(target=self.record_worker,
args=(samples, cycle, pressure))
self._rec_thread.start()
def record_worker(self, samples, cycle, pressure):
# Test Warning Criteria
error_actual_warning_bound = .5
error_reported_warning_bound = 1
response_time_warning_bound = .25
# Test Failing Criteria
error_actual_bound = 1
error_reported_bound = 2
response_time_bound = .35
pressure_failing_low = 5
pressure_failing_high = 25
response_time_tolerance = 0.95 # The percentage of the set value that, when reached, will be marked as reaching the value.
global current_ramp_cycle
"""Records the number of samples losted, logs the data"""
# Record data
self.task1.start()
self.data[cycle] = self.task1.read(samples)
self.task1.stop()
resp = (self.g.write('M236', resp_needed=True))
pressure_reported = (resp.split()[0])
logging.debug("pressure reported {} ".format(pressure_reported))
# Save times required to reach tolerance point
timestamp = self.wait_time_s
last_timestamp = self.wait_time_s
final_value = float(np.average(self.data[cycle][-10:-5]))
target = response_time_tolerance * final_value
error_actual = float(final_value * 20) - float(pressure)
error_reported = float(pressure_reported) - float(final_value * 20)
for value in reversed(self.data[cycle]):
if value < target:
self.log.log_and_print(cycle, pressure,
float(final_value) * 20.0, error_actual,
pressure_reported, error_reported,
last_timestamp)
if abs(error_actual) > error_actual_bound or abs(
error_reported) > error_reported_bound:
if pressure >= pressure_failing_low and pressure <= pressure_failing_high:
self.u.fail(
"Error too high, test failed: Actual: {:2f}, Reported {:2f}, Pressure {}"
.format(error_actual, error_reported, pressure))
elif abs(error_actual) > error_actual_warning_bound or abs(
error_reported) > error_reported_warning_bound:
self.test.test.logWarning(
"Error may be outside of acceptable range: Actual: {:2f} PSI Reported: {:2f} PSI, Pressure {}"
.format(error_actual, error_reported, pressure))
elif last_timestamp > response_time_bound and pressure > 0:
self.u.fail(
"Response time too high, test failed: Time: {}, Pressure: {}"
.format(last_timestamp, pressure))
elif last_timestamp > response_time_warning_bound and pressure > 0:
self.test.test.logWarning(
"Response time might be outside of acceptable range: Time {:2f}, Pressure: {}"
.format(last_timestamp, pressure))
break
last_timestamp = timestamp
timestamp -= (1.0 / self.sample_rate)
if timestamp is (1.0 / self.sample_rate):
self.log.log_and_print(cycle, pressure,
float(final_value) * 20.0, error_actual,
pressure_reported, error_reported,
self.wait_time_s)
if pressure is not 0:
u.fail("Response time too long, test failed")
# Periodically save full data for a cycle
if cycle % self.checkpoint == 0:
self.log.log_checkpoint(self.data, cycle, current_ramp_cycle,
pressure)
def display_test_results(self):
"""Shows the final display from the stat tracker in the logger"""
self.log.display_test_results()
class DAQ(object):
"""Interface for the NI DAQ"""
def __init__(self, test):
"""Initializes the DAQ with a task, and a logger"""
self.task1 = test.task
self.data = {}
self.log = Logger(test)
self.g = test.g
self.wait_time_s = test.wait_time_s
self.sample_rate = test.sample_rate
self.checkpoint = test.checkpoint
self.u = ResponseData()
self.test = test
def record(self, samples, cycle, pressure):
"""Starts a thread that launches a record_worker"""
self._rec_thread = Thread(target=self.record_worker,
args=(samples, cycle, pressure))
self._rec_thread.start()
def record_worker(self, samples, cycle, pressure):
# Test Warning Criteria
error_actual_warning_bound = .5
error_reported_warning_bound = 1
response_time_warning_bound = .25
# Test Failing Criteria
error_actual_bound = 1
error_reported_bound = 2
response_time_bound = .35
pressure_failing_low = 5
pressure_failing_high = 25
response_time_tolerance = 0.95 # The percentage of the set value that, when reached, will be marked as reaching the value.
global current_ramp_cycle
"""Records the number of samples losted, logs the data"""
# Record data
self.task1.start()
self.data[cycle] = self.task1.read(samples)
self.task1.stop()
resp = (self.g.write('M236', resp_needed=True))
pressure_reported = (resp.split()[0])
logging.debug("pressure reported {} ".format(pressure_reported))
# Save times required to reach tolerance point
timestamp = self.wait_time_s
last_timestamp = self.wait_time_s
final_value = float(np.average(self.data[cycle][-10:-5]))
target = response_time_tolerance * final_value
error_actual = float(final_value*20) - float(pressure)
error_reported = float(pressure_reported) - float(final_value*20)
for value in reversed(self.data[cycle]):
if value < target:
self.log.log_and_print(cycle, pressure, float(
final_value)*20.0, error_actual, pressure_reported, error_reported, last_timestamp)
if abs(error_actual) > error_actual_bound or abs(error_reported) > error_reported_bound:
if pressure >= pressure_failing_low and pressure <= pressure_failing_high:
self.u.fail("Error too high, test failed: Actual: {:2f}, Reported {:2f}, Pressure {}".format(error_actual, error_reported, pressure))
elif abs(error_actual) > error_actual_warning_bound or abs(error_reported) > error_reported_warning_bound:
self.test.test.logWarning("Error may be outside of acceptable range: Actual: {:2f} PSI Reported: {:2f} PSI, Pressure {}".format(error_actual, error_reported, pressure))
elif last_timestamp > response_time_bound and pressure > 0:
self.u.fail("Response time too high, test failed: Time: {}, Pressure: {}".format(last_timestamp, pressure))
elif last_timestamp > response_time_warning_bound and pressure > 0:
self.test.test.logWarning("Response time might be outside of acceptable range: Time {:2f}, Pressure: {}".format(last_timestamp, pressure))
break
last_timestamp = timestamp
timestamp -= (1.0 / self.sample_rate)
if timestamp is (1.0 / self.sample_rate):
self.log.log_and_print(cycle, pressure, float(
final_value)*20.0, error_actual, pressure_reported, error_reported, self.wait_time_s)
if pressure is not 0:
u.fail("Response time too long, test failed")
# Periodically save full data for a cycle
if cycle % self.checkpoint == 0:
self.log.log_checkpoint(
self.data, cycle, current_ramp_cycle, pressure)
def display_test_results(self):
"""Shows the final display from the stat tracker in the logger"""
self.log.display_test_results()
def test_laser(self):
""" Tests the laser responses to see that the ADC and laser are
responding correctly.
Conditions:
Pass: After each movement, laser gives a valid response and stays
within bounds of the test.
Fail: Any of the responses given are outside the set limits of the
test.
"""
t = ResponseData()
logging.info("Testing Laser Response")
logging.info("Setting Printer to Relative Mode:")
relativeResponse = self.g.write("G91", resp_needed=True)
logging.debug(relativeResponse)
logging.info("Homing to put bed in range for laser")
homingresponse = self.g.write("G28", resp_needed=True)
logging.debug(homingresponse)
logging.info("Homing Complete")
M234ResponseHigh1 = self.readLaser()
if M234ResponseHigh1.failed:
return M234ResponseHigh1
logging.info("Reading ADC")
M235Response = self.g.write("M235", resp_needed=True).split()
if int(M235Response[1]) > self.adcMax:
t.fail("Too far, out of adc max range")
return t
logging.debug(M235Response)
logging.info("Moving Z")
G0Response = self.g.write(
"G0 Z4 F10000.0", resp_needed=True).split()
logging.debug(G0Response)
sleep(1)
M234ResponseLow = self.readLaser()
if M234ResponseLow.failed:
return M234ResponseLow
observed_diff = self.laserObservedDifference
diff = M234ResponseHigh1.data - M234ResponseLow.data
logging.debug("Distance Difference Pre and Post: {0}".format(diff))
if diff > observed_diff + self.laserHeightDifferenceAcceptedRange or diff < observed_diff - self.laserHeightDifferenceAcceptedRange:
t.fail("Distance between original reading and new reading is too large")
return t
logging.info("Moving Z")
G0Response = self.g.write(
"G0 Z-4 F10000.0", resp_needed=True).split()
logging.debug(G0Response)
sleep(1)
M234ResponseHigh2 = self.readLaser()
if M234ResponseHigh2.failed:
return M234ResponseHigh2
diff = M234ResponseHigh1.data - M234ResponseHigh2.data
logging.debug("Distance Difference High 1 and 2: {0}".format(diff))
if diff > self.laserHysteresis or diff < -self.laserHysteresis:
t.fail("Too far")
return t
t.success("Laser Test Passed\n")
return t
def test_Diagnostics_trial_pump(self):
t = ResponseData()
# Test Failure Criteria
pump_to_pressure_time = 60
pump_pressure = 40
pump_pressure_acceptable_bound = 2
pressure_tank_start = 0 # Beginning pressure while testing for tank pressure
pressure_tank_end = 30 # Highest pressure reached while testing on tank pressure
pressure_interval = 5 # Interval in which the pressure increases between bounds
global current_ramp_cycle
with cd(path):
g = self.g
task = AnalogInputTask()
self.close_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
self.close_solenoid()
# Set tank pressure to pump pressure
self.pneumatics.setPumpPressure(pump_pressure)
# Wait for pump to reach pressure
for i in range(pump_to_pressure_time):
p = self.pneumatics.readPumpPressure()
if p > pump_pressure - pump_pressure_acceptable_bound:
break
if i is pump_to_pressure_time - 1:
t.fail("Didn't reach pump pressure")
return t
sleep(1)
logging.debug("Pump Pressure: {}".format(p))
logging.info("Testing Output Pressure (Source: Tank)")
current_ramp_cycle = i
# Interval added / subtracted to help make range function more
# intuitive
for p in range(pressure_tank_start, pressure_tank_end + pressure_interval, pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
if (p >= 10 or p <= 25):
t = self.daq.u
return t
for p in range(pressure_tank_end, pressure_tank_start - pressure_interval, -pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
print(self.daq.u.data.split())
t = self.daq.u
return t
self.close_house_air()
self.daq.display_test_results()
t.success("Pressure test run successfully")
return t
def test_Diagnostics_trial_house(self):
t = ResponseData()
# Test Failure Criteria
pressure_house_start = 30 # Beginning of house air pressure test
pressure_house_end = 80 # Highest pressure reached while testing house air
pressure_interval = 5 # Interval in which the pressure increases between bounds
global current_ramp_cycle
with cd(path):
g = self.g
task = AnalogInputTask()
self.close_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
# Ensure Solenoid is closed
self.close_solenoid()
# Set tank pressure to 40psi
self.pneumatics.setPumpPressure(40)
logging.info("Testing Output Pressure (Source: House Air)")
self.open_house_air()
for i in range(0, self.pressure_ramp_cycles):
# Ensure solenoid is closed at start
# Ensure Solenoid is closed
self.close_solenoid()
# Set tank pressure to 40psi
self.pneumatics.setPumpPressure(40)
current_ramp_cycle = i
# Interval added / subtracted to help make range function more
# intuitive
for p in range(pressure_house_start,
pressure_house_end + pressure_interval,
pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
for p in range(pressure_house_end,
pressure_house_start - pressure_interval,
-pressure_interval):
logging.debug(p)
self.record_solenoid_pressure(p)
if self.daq.u.failed:
self.close_house_air()
self.pneumatics.setRegulatorPressure(0)
self.pneumatics.setPumpPressure(0)
self.close_house_air()
self.daq.display_test_results()
t.success("Pressure test run successfully")
return t
