Cov Ntawv Cuam Tshuam Rau Cov Tsheb: 18 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Impact Recorder tau tsim los sau cov kev cuam tshuam rau lub tsheb thaum tsav tsheb lossis nyob ruaj khov. Cov kev cuam tshuam tau muab khaws cia rau hauv lub hauv paus hauv daim ntawv ntawm kev nyeem nrog rau cov vis dis aus/duab. Thaum cuam tshuam rau cov neeg siv nyob deb tuaj yeem txheeb xyuas qhov tseeb ntawm lub sijhawm, thiab cov neeg siv nyob deb tuaj yeem tuaj yeem saib cov vis dis aus uas tau khaws tseg lossis siv cov chaw deb mus rau pi lub koob yees duab thiab saib cov xwm txheej raws li.

Kauj Ruam 1: Cov Khoom & Cov Khoom Siv

(1) Raspberry Pi 3 lossis zoo dua: Kev suav lub zog xav tau

(2) Raspberry pi kev nkag siab lub kaus mom

(3) Raspberry pi lub koob yees duab / Usb lub koob yees duab

(4) Daim npav nco nrog cov duab raspbian tseeb (Yuav tsum txhawb cov liab, yuav luag txhua daim duab tshiab ua)

(5) Lub zog siv hluav taws xob tsawg kawg 2.1 A (Kuv tau siv lub txhab nyiaj roj teeb rau kev ua haujlwm ib leeg hauv tsheb)

Kauj Ruam 2: Nqe lus piav qhia: Sense Hat

Sense HAT muaj 8 × 8 RGB LED matrix, tsib-khawm joystick thiab suav nrog cov ntsuas hauv qab no:

• Gyroscope
• Accelerometer
• Magnetometer
• Kub
• Barometric
• siab
• Vaum

Xav paub ntau ntxiv txog kev ua haujlwm nrog lub kaus mom zoo tuaj yeem muab los ntawm cov kab txuas hauv qab no: Sense_Hat

API rau kev nkag siab lub kaus mom tau tuav ntawm: Sense_hat_API

Txoj cai rau kev nkag siab lub kaus mom tau hais nyob hauv cov theem tom ntej. Kev paub lub kaus mom txoj cai kuj tseem tuaj yeem ua piv txwv ntawm tus tswv sim ntawm: Sense-hat simulator

Kauj Ruam 3: Sib Sau Ua Ke: Cov Ntawv Cuam Tshuam

• Kev sib sau ua ke yog yooj yim dua li lub kaus mom kev xav yuav tsum tau teeb tsa hla pi (xaiv cov ntsia hlau ntsia tau muab nrog lub kaus mom zoo).
• Lub koob yees duab USB lossis lub koob yees duab pi tuaj yeem txuas nrog. Hauv kev qhia, pi lub koob yees duab tau txiav txim siab thiab raws li kev sau npe yog ua rau tib yam.
• Ntxig daim npav nco thiab teeb tsa sej code thiab node -red (teeb tsa & code tau them rau hauv cov kauj ruam ntxiv)

Daim duab saum toj no qhia pi-lub koob yees duab txuas nrog los ntawm txoj hlua txuas ncaj qha rau pi

Kauj Ruam 4: Sib Sau Ua Ke: Cov Ntawv Cuam Tshuam ntawm Dash Board ntawm Tsheb

Rau kev teeb tsa lub kaw lus, kuv tau siv daim kab xev ob npaug, qhov zoo dua yog lub kaw suab tuaj yeem hloov pauv tau yooj yim hauv txoj haujlwm sib txawv, qhov twg yog qhov haum tshaj plaws rau koj lub tsheb.

Lub koob yees duab ntxiv tau teeb tsa ntsug raws li qhia, siv tib daim kab xev ib sab, Tom ntej hauv kab yog txhawm rau txuas lub zog siv hluav taws xob (10, 000 mAH lub txhab nyiaj fais fab) nrog rau kev npaj internet txuas

Kev sib txuas hauv Is Taws Nem yuav tsum tau thov rau MQTT daim ntawv thov (cov ntsiab lus rau MQTT tau them rau hauv cov kauj ruam ntxiv)

Kauj Ruam 5: Qhov cuam tshuam Recoder: Ua Haujlwm & Cov Ntawv Thov

Los ntawm kev nkag siab lub kaus mom, ua kom nrawm dua thiab ntsuas lub ntsej muag tau siv los tshuaj xyuas seb cov txiaj ntsig nyoos yog dhau qhov kev txwv hauv txoj cai.

Accelerometer: Tus ntsuas hluav taws xob qhia qhov ntau ntawm lub zog nqus (G-quab yuam) ua rau txhua ntawm x, y & z axis, yog tias ib lub axis ntsuas ntau dua 1G quab yuam, tshaj li qhov txav tau tuaj yeem kuaj pom. (thov nco ntsoov lub axis taw qhia qis yuav muaj 1g tus nqi thiab yuav tsum tau txiav txim siab raws li hauv sej chaws).

Gyroscope; Lub gyroscope tau siv los ntsuas kev txav lub kaum ntse ntse, piv txwv li thaum lub ntse tig lub sensor tuaj yeem qhib tau (nyob ntawm qhov teeb tsa hauv txoj cai), yog li tus neeg nrawm nrawm lub tsheb yuav raug ntes !!

Ib qho kev ua haujlwm ntawm kev txwv txwv kuj tseem tshwm ntawm qhov kev nkag siab lub kaus mom LED matrix li "!" liab rau kev nrawm & ntsuab rau kev ua haujlwm gyroscope

Kauj Ruam 6: Kev Piav Qhia Software: Node Liab

Node-RED yog cov cuab yeej ua haujlwm raws li txheej txheem, ib txwm tsim los ntawm IBM's Emerging Technology Servicesteam thiab tam sim no yog ib feem ntawm JS Foundation.

Xav paub ntau ntxiv ntawm qhov liab tuaj yeem tau txais los ntawm kab ntawv txuas hauv qab no: node-red

Rau peb cov ntaub ntawv peb yuav siv node -red rau cov haujlwm hauv qab no

(1) Sib cuam tshuam nrog cov joysticks kom pib lub koob yees duab ua haujlwm

(2) Saib xyuas qhov cuam tshuam ntawm lub tsheb thiab xa cov ntaub ntawv mus rau cov neeg siv kawg los ntawm kev siv MQTT thiab txuas ntxiv lees txais cov neeg siv kawg cov lus txib los ntawm MQTT thiab pib qhov kev thov tsim nyog ntawm pi

(3) Ua qee yam khoom yooj yim xws li kaw pi

Cov kauj ruam txuas ntxiv muab cov ntaub ntawv ntxaws ntxaws rau daim duab ntws siv rau ntawm node-liab

Thov nco ntsoov cov duab kab liab liab sib cuam tshuam nrog tus nab npawb nab npawb, yog li qhov tom kawg suav nrog tus nab npawb nab npawb

Kauj Ruam 7: Node-red Basics

Cov theem pib yooj yim tau hais qhia kom pib Node-liab nyob rau hauv nyem, tab sis yog node-liab yog yooj yim dhau los pib thiab ua haujlwm tawm daim ntawv thov.

• Pib Node-liab: https:// localhost: 1880.
• Pib Node-liab thaum pi txuas nrog internet https:// ip address>: 1880

Kauj Ruam 8: Node-liab: Txaus _1a

Flow _1a, saib xyuas txhua qhov kev hloov pauv hauv CSV cov ntaub ntawv thiab ntawm qhov hloov pauv, piv txwv li cuam tshuam pom, lub koob yees duab kaw suab tau teeb tsa rau ntawm hom thiab ntxiv rau tus neeg siv tau ceeb toom hauv is taws nem tias muaj kev cuam tshuam tshwm sim

Kauj Ruam 9: Node Liab: Flow_1b

Hauv qhov hais tawm, kaw cov vis dis aus tuaj yeem pib ntawm txhua lub sijhawm los ntawm kev nias lub joystick

Kauj Ruam 10: Node Liab: Flow_2a

Hauv qhov hais los no, thaum twg muaj cov duab tshiab lossis yees duab tshiab khaws cia/muab tso rau hauv cov npe cov ntaub ntawv raug xa mus rau tus neeg siv npe hauv internet

Kauj Ruam 11: Node Liab: Flow_2b

Cov dej ntws no tau tsim ua ntej rau cov neeg siv nyob deb, yog li txhawm rau tswj lub cuab yeej raws li hauv qab no

(a) kaw lub cuab yeej

(b) thaij duab

(c) Sau cov vis dis aus

(d) pib lub ntsiab cai (datalogger code yog lub chaws tseem ceeb uas suav qhov cuam tshuam)

Kauj Ruam 12: Noob Liab; Txaus _3

Cov dej ntws tau tsim los rau kev nkag mus hauv zos, yog li txhawm rau pib lub ntsiab cai lossis kaw lub cuab yeej

Kauj ruam 13: MQTT

MQTT (Message Queuing Telemetry Transport) yog TCP/IP raws tu qauv, nyob ntawm tus tshaj tawm thiab cov neeg siv khoom cuam tshuam.

Hauv Peb Cov Ntaub Ntawv Pi yog tus tshaj tawm, qhov uas daim ntawv thov teeb tsa hauv peb lub xov tooj/PC yuav tsum yog tus neeg siv.

Txoj hauv kev no ntawm kev tsim tawm ntawm kev cuam tshuam, cov ntaub ntawv raug xa mus nyob deb rau tus neeg siv (kev ua haujlwm internet txuas yuav tsum tau)

Xav paub ntau ntxiv txog MQTT tuaj yeem nkag los ntawm qhov txuas hauv qab no: MQTT

Txhawm rau pib siv MQTT, peb yuav tsum sau npe ua ntej, rau qhov kev qhia kuv tau siv cloudmqtt (www.cloudmqtt.com), muaj phiaj xwm pub dawb hauv qab "miv ntxim hlub", yog li ntawd.

Tom qab sau npe tsim ib qho piv txwv hais "pi" tom qab uas koj yuav tau txais cov ntsiab lus hauv qab no

• Lub npe neeg rau zaub mov
• chaw nres nkoj
• lub npe siv
• lo lus zais

Cov lus saum toj no yuav tsum tau ua thaum sau npe los ntawm mobile/pc

Rau kuv daim ntawv thov, kuv tau siv MQTT daim ntawv thov los ntawm google play store (Android version)

Kauj Ruam 14: MQTT: Cov neeg siv npe

MQTT daim ntawv thov khiav ntawm txawb (Android version)

Qhov cuam tshuam pom ntawm pi tau xa rov qab

Kauj Ruam 15: MQTT: Kho Cov Khoom hauv Node-liab

Hauv qhov-liab tom qab xaiv MQTT ntawm, "Lub npe neeg rau zaub mov" thiab "lub ncauj lus" kom hais. Qhov no yuav tsum zoo ib yam ntawm cov neeg siv kawg

Kauj Ruam 16: Tus nab npawb Code:

Txoj haujlwm ua haujlwm tau zoo yog raws li daim ntawv txuas nrog

Kauj Ruam 17: Txoj Cai Kawg

Nab hab sej chaws yog txuas

Txhawm rau ua kom peb cov ntawv sej khiav los ntawm lub davhlau ya nyob twg, peb yuav tsum ua kom lawv ua haujlwm tau raws li chmod +x datalogger.py, tshaj qhov saum toj kawg nkaus ntawm cov cai yuav tsum muaj cov kab lus hauv qab no "shebang" #! /usr/bin/python3 (qhov no xav tau txhawm rau txhawm rau ua haujlwm ntawm node-liab)

#!.

kev nkag siab = SenseHat ()

import cov

timestamp = datetime.now ()

ncua = 5 // ncua tau txhais los khaws cov ntaub ntawv hauv data.csv file liab = (255, 0, 0) ntsuab = (0, 255, 0) daj = (255, 255, 0)

#GPIO.setmode (GPIO. BCM)

#GPIO.setup (17, GPIO. OUT)

def tau_sense_impact ():

sense_impact = acc = sense.get_accelerometer_raw () sense_impact.append (acc ["x"]) sense_impact.append (acc ["y"]) sense_impact.append (acc ["z"])

gyro = sense.get_gyroscope_raw ()

sense_impact.append (gyro ["x"]) sense_impact.append (gyro ["y"]) sense_impact.append (gyro ["z"])

rov sense_impact

def cuam tshuam (): // ua haujlwm txhawm rau txheeb xyuas qhov cuam tshuam #GPIO.setmode (GPIO. BCM) #GPIO.setup (4, GPIO. OUT) nrawm = sense.get_accelerometer_raw () x = acceleration ['x'] y = acceleration ['y'] z = acceleration ['z'] x = abs (x) y = abs (y) z = abs (z)

gyro = sense.get_gyroscope_raw ()

gyrox = gyro ["x"] gyroy = gyro ["y"] gyroz = gyro ["z"]

gyrox = puag ncig (gyrox, 2)

gyroy = puag ncig (gyroy, 2) gyroz = puag ncig (gyroz, 2)

cuam tshuam = get_sense_impact ()

yog x> 1.5 lossis y> 1.5 lossis z> 1.5: // cov txiaj ntsig tau teeb tsa tom qab rov ua dua ntawm txoj kev tiag tiag tuaj yeem hloov pauv raws li hom sib txawv thiab kev tsav tsheb nrog qhib ('impact.csv', 'w', newline = ' ') as f: data_writer = writer (f) data_writer.writerow ([' acc x ',' acc y ',' acc z ',' gyro x ',' gyro y ',' gyro z ']) #GPIO. cov zis (4, GPIO. HIGH) sense.clear () sense.show_letter ("!", liab) data_writer.writerow (cuam tshuam)

elif gyrox> 1.5 lossis gyroy> 1.5 lossis gyroz> 1.5: // qhov tseem ceeb tau teeb tsa saib mus rau qhov nrawm uas tig tau pib nrog qhib ('cuam tshuam.csv', 'w', newline = '') raws li f: data_writer = writer (f) data_writer.writerow (['acc x', 'acc y', 'acc z', 'gyro x', 'gyro y', 'gyro z']) #GPIO.output (4, GPIO. HIGH) sense.clear () sense.show_letter ("!", Ntsuab) data_writer.writerow (cuam tshuam)

lwm tus:

# GPIO.output (4, GPIO. LOW) sense.clear ()

def get_sense_data (): // muaj nuj nqi los sau thiab khaws cov txiaj ntsig los ntawm sensor sense_data =

sense_data.append (sense.get_temperature ()) sense_data.append (sense.get_pressure ()) sense_data.append (sense.get_humidity ())

kev taw qhia = sense.get_orientation ()

sense_data.append (kev taw qhia ["yaw"]) sense_data.append (kev qhia ["suab"]) sense_data.append (kev taw qhia ["yob"])

acc = sense.get_accelerometer_raw ()

sense_data.append (acc ["x"]) sense_data.append (acc ["y"]) sense_data.append (acc ["z"]) mag = sense.get_compass_raw () sense_data.append (mag ["x"]) sense_data.append (mag ["y"]) sense_data.append (mag ["z"])

gyro = sense.get_gyroscope_raw ()

sense_data.append (gyro ["x"]) sense_data.append (gyro ["y"]) sense_data.append (gyro ["z"])

sense_data.append (datetime.now ())

xa sense_data

nrog qhib ('data.csv', 'w', newline = '') raws li f:

data_writer = kws sau ntawv (f)

data_writer.writerow (['temp', 'pres', 'hum', 'yaw', 'pitch', 'roll', 'acc x', 'acc y', 'acc z', 'mag x', ' mag y ',' mag z ',' gyro x ',' gyro y ',' gyro z ',' datetime '])

thaum Muaj Tseeb:

print (get_sense_data ()) rau qhov xwm txheej hauv sense.stick.get_events (): # Txheeb xyuas yog tias tus joystick raug nias yog event.action == "nias": # Txheeb xyuas qhov kev taw qhia yog event.direction == "nce": # kev nkag siab.show_letter ("U") # Up xub acceleration = sense.get_accelerometer_raw () x = acceleration ['x'] y = acceleration ['y'] z = acceleration ['z'] x = round (x, 0) y = puag ncig (y, 0) z = puag ncig (z, 0)

# Hloov kho qhov kev hloov pauv ntawm cov zaub nyob ntawm seb txoj kev nce yog tias x == -1: sense.set_rotation (90) elif y == 1: sense.set_rotation (270) elif y == -1: sense.set_rotation (180) lwm: sense.set_rotation (0) sense.clear () t = sense.get_temperature () t = round (t, 1) message = "T:" + str (t) sense.show_message (message, text_colour = liab, scroll_speed = 0.09) elif event.direction == "down": acceleration = sense.get_accelerometer_raw () x = acceleration ['x'] y = acceleration ['y'] z = acceleration ['z'] x = round (x, 0) y = round (y, 0) z = round (z, 0)

# Hloov kho qhov kev hloov pauv ntawm cov zaub nyob ntawm seb txoj kev nce yog tias x == -1: sense.set_rotation (90) elif y == 1: sense.set_rotation (270) elif y == -1: sense.set_rotation (180) lwm: sense.set_rotation (0) # sense.show_letter ("D") # Down xub sense.clear () h = sense.get_humidity () h = round (h, 1) message = "H:" + str (h) sense.show_message (message, text_colour = ntsuab, scroll_speed = 0.09) p = sense.get_pressure () p = round (p, 1) message = "P:" + str (p) sense.show_message (lus, text_colour = daj, scroll_speed = 0.09)

# elif event.direction == "sab laug":

#acceleration = sense.get_accelerometer_raw () #x = acceleration ['x'] #y = acceleration ['y'] #z = acceleration ['z'] #x = round (x, 0) #y = puag ncig (y, 0) #z = puag ncig (z, 0)

#Hloov kho qhov kev hloov pauv ntawm cov zaub nyob ntawm seb txoj kev mus rau qhov twg // Tsis siv thiab tswj los ntawm node -liab #if x == -1: sense.set_rotation (90) #elif y == 1: sense.set_rotation (270) #elif y == -1: sense.set_rotation (180) #else: sense.set_rotation (0) # sense.show_letter ("L") # Sab xub xub # elif event.direction == "txoj cai": # sense.show_letter ("K") # Txoj cai xub # elif event.direction == "nruab nrab": # sense.clear ()

cuam tshuam ()

data = tau_sense_data ()

dt = data [-1] - timestamp yog dt.seconds> ncua: data_writer.writerow (cov ntaub ntawv) timestamp = datetime.now ()

Kauj Ruam 18: Saib Xyuas Cov Yees Duab Nyob

Cov Ntawv Cuam Tshuam kuj tseem tuaj yeem siv los saib xyuas cov vis dis aus nyob, vim tias cov vis dis aus tuaj yeem pib txhua lub sijhawm nyob txhua qhov chaw los ntawm MQTT

peb yuav siv VLC player los tso cov vis dis aus, los ntawm qhov tseeb hauv raspbian tshiab VLC tau teeb tsa ua ntej, ntxiv rau nruab vlc raws li hauv qab no

Xav paub ntau ntxiv txog kev saib cov kwj network tuaj yeem nkag tau los ntawm VLC Network kwj

Ua tsaug koj nyeem !!

Muaj ntau ntau qhov cuam tshuam cov kaw suab tuaj yeem ua tau..

Saib xyuas qhov chaw tom ntej rau kev tshuaj xyuas thaj chaw sib nqus hauv kev ua daim phiaj teeb meem