| Presentation | 2021-01-15 Effects of 1-bit Comparator for Power over CAN Signal Transmission Takahiro Hara, Daisuke Umehara, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Controller area network (CAN) is widely used for in-vehicle networks. In recent years, much more reducing for CAN wiring has been required as upgrading higher-performance CAN networks. However, the number of nodes is very limited for higher-rate CAN because the upper limit is defined as two nodes with 5 Mbps in SAE J2284 standards. In this manuscript, we verify the feasibility of power wiring reducing for high-rate, high-multiplexing CAN by exploiting power over CAN (PoCAN) in which the DC power is superposed to CAN twisted-pair cables. CAN signals are not suitable for DC power superposition because the signals are defined as unipolar non-return-to-zero (NRZ) line codes including DC component. Bipolar alternate-mark-inversion and NRZ (AMI-NRZ) line codes are generated by using two CAN transceivers in the PoCAN node architecture and the line codes do not include DC component in the signals. By using the VHDL-AMS simulator SaberRD, we emulate the PoCAN signaling generated from the PoCAN node architecture over a passive star CAN network. We measure the CAN bus signals in front of the PoCAN nodes and the received signals through 1-bit hysteresis comparators. The simulation results reveal the effects of the 1-bit hysteresis comparators for bit detection by comparing the bus signals with the received signals. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CAN / NRZ code / AMI code / passive star network / CAN transceiver |
| Paper # | CS2020-76 |
| Date of Issue | 2021-01-07 (CS) |
| Conference Information | |
| Committee | OCS / CS |
|---|---|
| Conference Date | 2021/1/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Joji Maeda(Tokyo Univ. of Science) / Jun Terada(NTT) |
| Vice Chair | / Daisuke Umehara(Kyoto Inst. of Tech.) |
| Secretary | (NTT) / Daisuke Umehara(Fujikura) |
| Assistant | / Hiroyuki Saito(OKI) / Takahiro Yamaura(Toshiba) |
| Paper Information | |
| Registration To | Technical Committee on Optical Communication Systems / Technical Committee on Communication Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effects of 1-bit Comparator for Power over CAN Signal Transmission |
| Sub Title (in English) | |
| Keyword(1) | CAN |
| Keyword(2) | NRZ code |
| Keyword(3) | AMI code |
| Keyword(4) | passive star network |
| Keyword(5) | CAN transceiver |
| 1st Author's Name | Takahiro Hara |
| 1st Author's Affiliation | Kyoto Institute of Technology(KIT) |
| 2nd Author's Name | Daisuke Umehara |
| 2nd Author's Affiliation | Kyoto Institute of Technology(KIT) |
| Date | 2021-01-15 |
| Paper # | CS2020-76 |
| Volume (vol) | vol.120 |
| Number (no) | CS-308 |
| Page | pp.pp.2-7(CS), |
| #Pages | 6 |
| Date of Issue | 2021-01-07 (CS) |