Data communication system tih hi eng nge ni?
Can Bus hmanga inbiakpawhna .
Controller Area Network (CAN) bus hi serial communication protocol bus a ni a, a tak tak-hun a hman theih tur atana siam a ni. Twisted pair, coaxial cable, emaw optical fiber emaw hmangin signal a thawn thei a ni. A performance sang tak, rintlakna sang tak, leh real-Time characteristics tha tak a neih avangin Can hi khawvel puma fieldbus hman lar ber pawl a ni ta a ni.
Tunah hian CAN communication hi battery management system (BMS) te tana inbiakpawhna hmanraw pawimawh ber a ni. Ram chhung leh ram pawn lama standardized electric vehicle battery management system-ah te, China leh ram pawnah te BMS data communication standard kaihhnawihah te pawh a tha hle a, hman a ni bawk. Bus protocol dang RS232 leh RS485 te pawh battery management system chhunga communication thenkhatah hman a ni bawk.
Flexray hmanga inbiakpawhna .
Automotive electronic technology siam chhuah a nih takah chuan traditional CAN solutions chu lirthei inbiakpawhna harsatna sutkian nan a tha ber a ni tawh lo. Kum 2000 September thla khan BMW leh Daimlerchrysler te chuan Philips leh Motorola te nen thawkdunin Flexray Consortium chu communication protocol thar siam a, advanced powertrain, chassis, leh x- by-wire systems atana standard protocol atana an tihlar theih nan an din a.
Flexray hian advanced features tam tak a pe a, chu chu traditional in-vehicle communication protocols (sas can) in an neih loh a ni a, chung zingah chuan:
(1) Transmission rate sang tak a ni.Flexray channel tin hian bandwidth 10 Mbit/s an pe a. Flexray hian single-channel system (CAN emaw LIN network emaw ang chi) emaw, dual{3}}channel system angin emaw a thawk thei a, current can network-te operating speed sang ber aiin a let 20-a sangin a let 20 Mbit/s--in a sang zawk a ni.
(2) Synchronized hun chhung a ni.Flexray-a access method hman hi global time base synchronized hmanga siam a ni. He time base hi automatic in a din a, protocol hmangin a synchronized a, application layer ah a siam thei bawk. Hun hman dan dik tak chu 0.5 μs leh 10 μs (a tlangpuiin 1–2 μs) inkar a ni.
(3) Deterministic inbiakpawhna .Flexray-a inbiakpawhna hi inbiakpawhna cycle repeat chhunzawm zelnaah a thleng a, chutah chuan message bikte chu cycle chhunga fixed position (slots) pek a ni. Chuvang chuan receiver chuan engtikah nge message a lo thlen ang tih a hre lawk a ni. Message thlen hun tur temporal deviation hi a tlem hle a, a guarantee bawk.
(4) High fault tolerance .Error hmuhchhuah theihna chak tak leh fault-tolerant operation hi Flexray-a design ngaihtuah tur pawimawh tak a ni.
- Flexray bus hian cyclic redundancy check (CRC) hmangin inbiakpawhna dik lo a awm leh awm loh a hriat theih a ni.
- Dual-channel communication hmangin Flexray hian redundancy a pe a.
- Star topology (a nih loh leh topologies inzawmkhawm) hmangin Flexray hian fault-tolerance requirements te chu a address kim thei a, chutah chuan single-point-of-failure mitigation te pawh a tel a ni.
(5) A flexibility .Flexray protocol siam lai khan flexibility hi a pawimawh ber a, a hnuaia thil hrang hrangah hian a lang chiang hle: 1 Network Topologies (Bus, Star, Hybrid, etc.) a thlawp a 2 Configurable Message Length: Data payload sei zawng hi control application-a thil mamawh bikte nena inmil thei a ni; 3 Dual-channel topology hman a nih chuan channel pahnih hi bandwidth tihpun nan emaw, redundant message thawn chhuahna atan emaw hman theih a ni a; 4 Communication cycle chhunga static leh dynamic segment hun chhung chu application mamawh bik angin siamrem theih a ni.
Industrial ethernet 1000 a ni.
Industrial Ethernet hi a inhawng kim vek a, digital network a ni bawk. Manufacturer hrang hrang atanga devices te chuan awlsam takin standard network protocols zawm in interconnection an nei thei a ni. Communication rate sang tak a pe a: Fast Ethernet with speeds of 10 Mbit/s and 100 Mbit/s chu hman a ni nasa hle a, gigabit ethernet technology pawh a puitling tawh a, GBIT/S Ethernet 10 chu active research leh development hnuaiah a awm mek bawk. Heng rates te hi tuna fieldbus awm zat aiin a sang zawk hle.
Mahse, Industrial Ethernet hian harsatna eng emaw zat a la hmachhawn a, a bik takin:
- Real-Hun hun a thawk thei .
- Industrial boruak khirh tak takah hian insiamrem theih leh rintlakna .
- Application awm theihna-Layer protocols industrial automation control atana tha tur
Industrial Ethernet technology hmasawnna zel a nih tak avangin a chunga kan sawi takte hi a lo thang chho zel a ni.
