Sɛnea Wobɛpaw CAN Bus Fuel Level Sensor ama Po so Dwumadi

Amanne kwan so analog resistive senders taa di nkogu wɔ po mu mmeae a ɛhɔ yɛ den. Nsukorabea a ɛwosow kɛse, nkyene nsu a ɛporɔw bere nyinaa, ne mfiri a ɛde ne ho hyɛ mu no ma dashboard akenkan a ɛnkɔ so pɛpɛɛpɛ. Wɔn a wɔyɛ ahyɛmma no taa nya sensor a ɛsɛe a wɔnhwɛ kwan bere a wɔretu kwan wɔ mpoano no.

Nnɛyi nneɛma a wɔde kyerɛ nneɛma pii (MFD) ne dijitaal nsakrae nhyehyɛe ahorow hwehwɛ sɛ wɔyɛ telemetry a ɛkɔ so. Sɛ wodan kɔ dijitaal ntam nkitahodi te sɛ NMEA 2000 anaa SAE J1939 so a, ɛma nkitahodi a ɛnyɛ den wɔ wo po so ahyɛn no nyinaa mu. Sɛ wɔde wɔn ho to analog nneɛma a ne bere atwam so a, ɛma anifuraefo a asiane wom ba wɔ pɛtro a wɔde di dwuma mu.

Saa akwankyerɛ yi ma nhwehwɛmu nhyehyɛe a wɔahyehyɛ a wɔde bɛkyerɛ nnɛyi hardware. Yɛbɛhwehwɛ dijitaal protocols, nneɛma a ɛho hia a wɔhwehwɛ, ne tank geometry calibration a ɛyɛ den. Wobɛsua sɛdeɛ wobɛpaw sensor a ɛfata a woremfa wo ho nto asiane mu sɛ network no nhyia.

Nneɛma Titiriw a Wɔde Kɔ

• Protocol kyerɛ sɛnea ɛne ne ho hyia: Hwɛ sɛ sensor no protocol (NMEA 2000 vs. J1939) ne po so hyɛn no core network no hyia pɛpɛɛpɛ.

• Nneɛma a wɔpaw no nyɛ nea wontumi nsusuw ho: Kyerɛw SUS316 anaa 316L dade a ɛnyɛ den nkutoo na amma nkyene nsu ansɛe na pɛtro asɛe.

• Damping matters: Hwehwɛ sensor ahorow a algorithmic anaa mfiri anti-slosh tumi a ɛbɛma akenkan a ɛyɛ den wɔ po a ɛso yɛ den mu.

• Tank geometry hwehwɛ sɛ wɔyɛ calibration: Steppped anaa V-shaped hull tanks hia multipoint programmable sensors ma nokware volumetric pɛpɛɛpɛ, ɛnyɛ linear bun nkutoo.

Nkonimdi ho gyinapɛn a wɔde besi hɔ ama Po mu pɛtro dodow a wɔde kɔma obi

Wo anwenne a wobɛma ayɛ yiye no hwehwɛ sɛ wokyerɛkyerɛ nkonimdi mu pefee. A wotumi de ho to so ɛsɛ sɛ po mu pɛtro dodow a ɔde kɔma no de dijitaal mfiase a mfomso biara nni ho si hɔ. Ɛsɛ sɛ ɛde mmeae a awu a ɛnyɛ hwee fi tank no atifi kosi ase ma. Ɛsɛ sɛ afiri no di nkitaho natively ne wo multi-function display. Ɛsɛ sɛ wokwati sɛ wode analog-to-digital converters a ɛyɛ mmerɛw bɛhyɛ mu. Saa mfinimfini apon yi de huammɔdi ho nsɛntitiriw a ɛho nhia ba. Nokware nkonimdi kyerɛ sɛ wobenya bere tenten a ɛtra hɔ kyɛ a wonkɔ so nsiesie.

Ɛsɛ sɛ wode nsiyɛ kwati huammɔdi akwan a ɛtaa ba a ɛbata nneɛma a ɛwɔ fam ho. Mpɛn pii no, wɔn a wɔde nneɛma mena a wɔn bo nyɛ den no hu amane esiane float a ɛbata shaft no mu nti. Wɔda gyinaesi a enye nso adi. Ebia wubehu ahuruhuruw akɛse a ɛba mpofirim wɔ pɛtro akenkan mu sen sɛ wubehu nsakrae a ɛkɔ so ntɛmntɛm. Galvanic corrosion sɛe dade a ɛba fam ntɛmntɛm wɔ mmeae a nkyene nsu wom. Wo tank a wobɛbɔ ho ban no hwehwɛ sɛ wopaw nneɛma a wɔayɛ ama po mu nsu a ɛbɛkɔ mu titiriw.

Hardware mu nhwehwɛmu hwehwɛ sɛ wɔkari ɛka a wɔbɔ ansa na wɔayɛ no de atoto sika a wɔde asie bere tenten wɔ adwumayɛ mu no ho. Premium digital senders hwehwɛ sɛ wɔde sika a ɛkɔ soro wɔ mfiase no. Nanso, wɔtew ka a wɔbɔ wɔ atoro afiri a wɔde bɔ kɔkɔ a ɛnyɛ pɛtro pii ho no so kɛse. Gauge a ɛtɔ mpofirim no sɛe po so aguadi mu adwumayɛ na ɛsɛe akwantu a wɔde gye wɔn ani. Sika a wɔde hyɛ nneɛma a ɛyɛ papa mu no mma wontumi nsakra hardware ntɛm. Ɛma wo anwenne no nkɔ gyaade a wosiesie no ne nsu no so.

Network Protocol Alignment: NMEA 2000 vs. J1939 Po so Tank a Wɔhwɛ So

Digitals protocol a ɛfata a wobɛpaw no siw network a ɛbɛbɔ a ɛyɛ asiane ano. Po so adwuma no de ne ho to gyinapɛn abien so titiriw. Ɛsɛ sɛ wode wo sensor a wopaw no ne w’akyi dompe a ɛwɔ hɔ dedaw no hyia.

NMEA 2000 (N2K) Nkitahodi

NMEA 2000 na ɛhyɛ ahomegye ne aguadi ahyɛn a emu nyɛ duru so. Ɛde nkrasɛm nhyehyɛe a wɔahyɛ da ayɛ di dwuma wɔ Controller Area Network (CAN) so. Ɛhia DeviceNet micro-C nkitahodi ahorow a ɛyɛ gyinapɛn. Ɛnyɛ den sɛ wubetumi de eyinom ahyɛ backbone tees a ɛwɔ hɔ dedaw no mu.

Wo nhwehwɛmu gyinapɛn titiriw ne NMEA 2000 adansedi a ɛyɛ aban de. Sensors a wɔagye atom hwɛ hu sɛ plug-and-play a wɔde bɛka abom ne nnwumakuw atitiriw te sɛ Garmin, Raymarine, anaa Simrad. Knockoffs a wonni adansedi krataa no tow data packets gu. Wɔtaa ma display freezing anaasɛ network reset.

SAE J1939 Nsiesiei

Po so ahyɛn a wɔde di gua a emu yɛ duru, po so ahyɛn a wɔtwe nneɛma, ne po so ahyɛn a wɔde diesel yɛ duru no pɛ SAE J1939 nhyehyɛe no. Saa gyinapɛn yi ne engine a emu yɛ duru Electronic Control Units (ECUs) di nkitaho tẽẽ. Ɛdi nsɛm pii a ɛfa sɛnea wɔhwehwɛ yare no ho dwuma.

Bere a wɔde redi dwuma no J1939 marine tank monitoring , ɛsɛ sɛ wohwehwɛ fibea address nhyehyɛe mu. Afiri no hia baud rate matching tumi ahorow. J1939 ntam nkitahodi dodow no ara yɛ adwuma wɔ 250 kbps. Ɛsɛ sɛ sensor no kura ne nhyehyɛe no mu bere a tumi kyinhyia ahorow no.

Asiane a Ɛwɔ Dual-Protocol Sensors mu

Adetɔnfoɔ binom de 'dual-protocol' sensors a ne boɔ yɛ mmerɛw ma a wɔkyerɛ sɛ ɛboa NMEA 2000 ne J1939 nyinaa bere koro mu. Ɛsɛ sɛ wokwati saa unit ahorow yi. Mpɛn pii no wonni hardware isolation a ɛfata. Wɔntaa nkyerɛ nkitahodi a wɔagye atom. Gyinapɛn ahorow a wɔde frafra chip biako a wonni adansedi krataa so no de asiane ba sɛ ɛde mfomso frame ahorow bɛhyɛ CAN bɔs no mu ma.

Po so Nkitahodi Protocol Ntotoho

Hardware Nhwehwɛmu: Po mu Nneɛma a Atwa Yɛn Ho Ahyia Ho Nsɛm a Wɔakyerɛkyerɛ Mu

Po mu nneɛma a atwa yɛn ho ahyia no sɛe hardware a ɛnyɛ papa ntɛmntɛm. A wotumi de ho to so Ɛsɛ sɛ CAN bɔs pɛtro dodow sensor gyina wosow a ɛkɔ so, ɔhyew a ɛsakrasakra, ne nnuru a ɛporɔw ano.

Nneɛma a Wɔde Di Dwuma Ho Ahwehwɛde

Nneɛma a wɔpaw na ɛkyerɛ mfiri no nkwa nna. Ɛsɛ sɛ wo si so dua sɛ wode SAE 316 anaa 316L dade a ɛnyɛ den bɛma sensor nipadua no nyinaa. Kwati 304 dade a ɛnyɛ den. Enni molybdenum a ɛho hia na ama wɔatumi ako atia nkyene nsu mu amena. Mfa plastic sensor tubes nni dwuma da mfa nni dwuma wɔ pɛtro a ɛwɔ dan no ase ho. Plastik sɛe ntɛmntɛm bere a wɔde nnɛyi ethanol afrafra anaa diesel a ano yɛ den afra mu no.

Sensing Technology a Wɔbɛsɔ Ahwɛ

Mpɛn pii no, wowɔ mfiridwuma abien a wotumi de ho to so a wɔde te nneɛma nka a wubetumi apaw bi de adi dwuma wɔ po so.

• Reed Switch ne Magnetic Float: Saa mfiridwuma yi de magnetic switch ahorow a ɛwɔ mu di dwuma. Ɛyɛ nea wotumi de ho to so kɛse. Nanso, sɛnea ɛbɛyɛ pɛpɛɛpɛ no gyina sɛnea switch ahorow a ɛwɔ mu no mu yɛ den so. Ɛsɛ sɛ wode w’ani si mfonini ahorow a ɛde 10-21mm anammɔn nsusuwii ma.

• Capacitive Sensing: Eyinom yɛ mfiri a ɛwɔ tebea a ɛyɛ den a enni afã horow a ɛkeka ne ho. Wɔde gyinaesi a ɛkɔ so a enni anammɔn biara ma. Nanso, ɛhwehwɛ sɛ wɔyɛ dielectric calibration a emu yɛ den. Nsakrae a ɛba pɛtro ahorow mu (a wɔdan fi diesel a wɔtaa de di dwuma so kɔ biodiesel so) betumi asesa dielectric constant ne skew akenkan.

Anti-Slosh ne Damping Nsɛm a Wɔakyerɛw

Nhyɛmma nya nnyigyei a ɛyɛ den na ɛbɔ bere nyinaa. Saa kankyee yi ma pɛtro no hwe ase denneennen. Sɛ woanhyɛ damping a, wo gauge needle no bɛwosow wɔ ɔkwan a ɛnteɛ so. Digitals sensor ahorow a ɛyɛ fɛ de software-level signal damping di dwuma. Wɔkyekyɛ akenkan no mu wɔ sikani kakraa bi mu ansa na wɔabɔ CAN nkrasɛm no. Mfonini ahorow bi de mfiri a wɔde siw nsu a ɛtwetwe nsu no twa float no ho hyia. Anyɛ yiye koraa no, wuhia akwan yi mu biako na ama woahwɛ ahu sɛ data a ɛyɛ pintinn.

Nneɛma a Atwa Yɛn Ho Ahyia Ho Nkɔmmɔbɔ Nhwehwɛmu

Sensor no atifi hwɛ bilge nsu, condensation, ne bere ne bere mu washdowns. Ɛsɛ sɛ sensor ti ne wiring harness no kura IP67 rating sɛ nea ɛba fam koraa a ɛyɛ katee. IP68 ratings ma ahobammɔ a eye mpo fi nsu ase a ɛkɔ so.

Tank Geometry ne Calibration a ɛyɛ den a wɔde di dwuma

Wɔn a wɔyɛ ahyɛmma no ntaa mfa pɛtro ahina a ɛyɛ ahinanan pɛpɛɛpɛ nni dwuma. Hull contours kyerɛ tank ahorow a ɛyɛ den na ɛnyɛ pɛpɛɛpɛ. Saa geometric nokwasɛm yi de ɔhaw kɛse ba ma standard linear measurements.

Linear Versus Volumetric Ɔhaw no

Standard sensor ahorow susuw nsu no mu dɔ. Wɔde linear output a egyina ɔsorokɔ so ma. Linear bun akenkan wɔ V-shaped hull tank so no kyerɛ pɛtro dodow ankasa a aka no wɔ ɔkwan a ɛnteɛ so koraa. V-tank fã a ɛwɔ soro no kura pɛtro pii kɛse sen ase fã teateaa no. Sɛ linear sensor kenkan 50% bun a, ebia tank no bɛkura ne pɛtro dodoɔ nyinaa mu 25% pɛ. Saa abirabɔ yi ma wɔn a wɔyɛ adwuma no bu wɔn baabi a aka no boro so.

Multipoint Calibration a wotumi yɛ ho nhyehyɛe

Wodi ɔhaw yi ho dwuma denam dijitaal sensor a wotumi yɛ ho nhyehyɛe a wobɛpaw so. Advanced CAN bɔs mfonini ahorow ma kwan ma OEM anaasɛ ɔdefo-gyinabea amanne profiling. Wubetumi de 5-point anaa 10-point volume curve ahyɛ mu. Sensor software no yɛ nsuo sorokɔ pɔtee bi ho mfonini kɔ galɔn anaa lita boɔ ankasa so. Eyi dan raw linear susudua ma ɛbɛyɛ volumetric output a ɛyɛ pɛpɛɛpɛ. Wo MFD no kyerɛ pɛtro a wotumi de di dwuma ankasa.

Instance Nsiesiei ma Multi-Tank Nhyɛmma

Nhyɛmma akɛse de pɛtro a wɔde gu mu pii na edi dwuma. Ebia wowɔ Port, Starboard, ne Center tank ahorow. Ɛsɛ sɛ CAN bɔs ntam nkitahodi no kyerɛ nsonsonoe a ɛda saa honam fam fibea ahorow yi ntam. Ɛsɛ sɛ sensor no ma kwan ma ɛnyɛ den sɛ wɔbɛsan de 'Data Instances.' ahyɛ mu denam instance nɔma a wobɛhyehyɛ so no, wobɛsiw MFD no kwan sɛ ɛremma Port tank data no ne Starboard tank data no nfrafra. Hwehwɛ sensor ahorow a ɛma instance programming nnwinnade a ɛnyɛ den anaa dip-switch nhyehyɛe ahorow.

Nokwasɛm a Ɛwɔ Nnwuma a Wɔde Di Dwuma ne Asiane a Ɛwɔ Installation Mu

Hardware a eye sen biara mpo di nkogu sɛ wɔanhyɛ no yiye a. Honam fam anohyeto ne network topologies taa kyerɛ sɛnea wo refit no bɛyɛ yiye.

Flange ne Mounting Gyinapɛn

Ɛsɛ sɛ wo sensor foforo no ne honam fam twa a ɛwɔ wo tank no so no hyia. Po so tank dodow no ara de SAE 5-hole mounting pattern a wɔahyɛ da ayɛ no di dwuma. Afoforo nso de hyɛn gyinabea ahorow a wɔde nhama ayɛ di dwuma. Sɛ wo tank no wɔ nhama a, ɛsɛ sɛ wokyerɛ nhama no nnyigyei a ɛfata, te sɛ 1.25' BSP nkitahodi. Hwɛ yiye wɔ sealing gasket no so. Standard rubber degrades in diesel. Ɛsɛ sɛ wode NBR, FPM, anaa FKM (Viton) gaskets di dwuma ma nnuru a ɛko tia denneennen.

Network Topology Anohyeto Ahorow

CAN bɔs ahorow di adansi ho mmara a emu yɛ den akyi. Worentumi mfa nhama nkabom kɛkɛ. NMEA 2000 deɛ, drop cables de sensor no bata akyi berɛmo titire no ho. Ne tenten a ɛsen biara a wɔma ho kwan ma drop cable no yɛ mita 6 (bɛyɛ anammɔn 20). Sɛ woboro saa tenten yi a, ɛma data sɛnkyerɛnne no sɛe. Bio nso, ɛsɛ sɛ network backbone titiriw no nya termination resistors a ɛfata wɔ n’awiei abien no nyinaa. Terminators a ɛyera no ma nkitahodi no di nkogu ntɛm ara.

Clearance ne Baffle Ntwitwiridii

Po mu nsukorabea akɛse pii wɔ nneɛma a wɔde siw nhyehyɛe a ɛwɔ mu no mu. Saa dade mprɛte yi siw pɛtro a ɛsakra kɛse bere a wɔredannan wɔn ho no ano. Ɛsɛ sɛ wubu honam fam anammɔn a ɛwɔ sensor float no mu no ho akontaa. Hwɛ sɛ afiri a ɛsensɛn nsuo mu no renbɔ anaasɛ ɛrenpete tank no mu baffles so. Awiei koraa no, rubbing float bi bata ho. Ɛma mmeae a awu daa ba w’akenkan ahorow mu. Bere nyinaa fa kanea a wɔde tow hwɛ tank no mu ansa na wode afiri foforo no agu baabi a ɛwɔ.

Shortlisting Logic: Sɛnea Wosi Gyinae a Etwa To

Navigating specification nhyehyɛe no hwehwɛ sɛ ɔkwan a wɔfa so yɛ adwuma. Di anammɔn a emu yɛ den yi akyi na woato hardware a ɛfata ama wo hyɛn no mu.

1. Audit network a ɛwɔ hɔ dedaw no: Kyerɛ wo mprempren MFD brand ne model. Hwɛ sɛ woretu mmirika NMEA 2000 akyi dompe anaa J1939 architecture. Kan ports a wɔabue a ɛwɔ hɔ wɔ wo network tees no so.

2. Sua tank no mu dɔ pɛpɛɛpɛ: Fa susuw dua a ɛyɛ den hyɛ tank no mu na woahu emu dɔ pɔtee. Hyehyɛ sensor no tenten 10 kosi 25mm tiaa sen saa bun a ɛsen biara yi. Saa nsonsonoe yi mma sensor no ntumi nkɔ fam. Ɛbɔ unit no ho ban fi hull flexing ne mfiri a ɛsɛe ho.

3. Yɛ adetɔnfo nhwehwɛmu a edi mũ: Ntɔ anifuraefo. Hwehwɛ mfiridwuma ho datasheets fi nea ɔyɛe no hɔ. Hwɛ sɛ wɔn official protocol adansedi nɔma ahorow no yɛ nokware. Si so dua sɛ nneɛma a wɔahyehyɛ no yɛ nokware 316L dade a ɛnyɛ den. Hwɛ wɔn warranty nsɛm a ɛfa po so a wɔde wɔn bɛkɔ no ho.

Adeyɛ a Edi Hɔ: Boaboa wo hyɛn no tank schematic diagrams ano. Kyerɛw wo mprempren network nhyehyɛe no. Fa saa nsɛm a wɔakyerɛkyerɛ mu yi bra wɔn a woapaw wɔn a wɔde nneɛma ma no nkyɛn ansa na woabisa sɛ wɔmfa sika mma wo wɔ ɔkwan a ɛfata so. Saa ahosiesie yi siw nsɛm a ɛnhyia a ɛho ka yɛ den ano.

Awie

Digitals petrol telemetry mfiri a ɛfata a wɔbɛpaw no hwehwɛ sɛ wɔyɛ nhyehyɛe yiye. Ɛyɛ apɔw-mu-teɛteɛ a wɔde digyital nkitahodi nhyehyɛe ahorow ne po so dade a ɛyɛ den a ɛne ne ho hyia. Analog nhyehyɛe ahorow ntumi nni nnɛyi dijitaal po so ahyɛn sohwɛ ahwehwɛde ahorow ho dwuma bio.

• Fa aban network adansedi di kan sen dual-protocol claims a wɔannye antom.

• Si so dua sɛ fa dade a ɛnyɛ den a ɛyɛ 316L di dwuma na ama atra hɔ akyɛ asen nkyene nsu a emu yɛ den.

• Fa multipoint calibration di dwuma ma volumetric akenkan a ɛyɛ pɛpɛɛpɛ wɔ V-hull tanks mu.

• Size wo hardware no kɛse yiye na woakwati sɛ emu baffle strike ne bottoming out.

Mfa nneɛma a ɛtra hɔ kyɛ no nsɛe na ama woakora ɛka nketenkete a wobɛbɔ ansa na woadi kan no so. Data a wotumi de ho to so ma wo engine ahorow no kɔ so yɛ adwuma dwoodwoo wɔ mpoano.

FAQ

Asɛmmisa: So metumi de CAN bɔs sensor bi akɔ analog gauge so tẽẽ?

A: Dabi CAN bɔs sensor ahorow no de dijitaal data packets fi adi. Analog gauges hwehwɛ sɛ anyinam ahoɔden a ɛsonosonoe na ama honam fam ade bi akɔ baabiara. Ɛsɛ sɛ wode digyital display a ɛne CAN hyia, MFD, anaasɛ wode digyital-to-analog apon a wɔatu ho ama hyehyɛ sɛnkyerɛnne no.

Asɛmmisa: Ɔkwan bɛn so na mede sensor ahorow pii ma hyɛn gyinabea ne starboard tank ahorow?

A: Wo hyehyɛ data nhwɛso soronko ma sensor biara. Adetɔnfo de nhyehyɛe nnwinnade a egyina PC so ma anaasɛ wɔma kwan ma wɔyɛ nsakrae tẽẽ denam MFD ahorow a ɛne no hyia so. Sɛ wode 'Instance 0' ma Port na 'Instance 1' ma Starboard a, ɛma data nsuo no kɔ so yɛ soronko.

Q: Sɛ mede J1939 sensor di dwuma wɔ NMEA 2000 network so a, dɛn na ɛba?

A: Nhyehyɛe no bedi nkogu. Honam fam nkitahodi ahorow no nhyia. Nea ɛho hia kɛse no, software packet nhyehyɛe ahorow no nhyia. MFD no ntumi nkyerɛ J1939 nkrasɛm no mu gye sɛ woahyɛ J1939-to-N2K protocol gateway soronko bi.

Asɛmmisa: So capacitive CAN bɔs sensor ahorow ye sen reed switch floats?

A: Egyina wo akwammisa krataa no so. Capacitive sensors ma kɔ so, anammɔn biara resolution a enni kankyee afã horow. Nanso, wɔyɛ mmerɛw wɔ nsakrae a ɛba wɔ pɛtro dielectric su mu no ho. Reed switch floats yɛ mfiri a ɛyɛ den na wobu wɔn ani gu nsuo agyapadeɛ nsakraeɛ so, ɛwom sɛ wɔanya anammɔn resolution de.