News
Choosing the Battery for an Infusion Pump: NiMH vs Li-ion Pack Design and Sizing
2026-09-08
A quantitative NiMH vs lithium-ion vs primary comparison for infusion pumps, with a worked 7.2 V pack sizing waterfall, cell matching, charging and thermal design.
Powering Infusion and Syringe Pumps: The Battery Load Profile Behind Life-Sustaining Delivery
2026-09-08
How infusion and syringe pumps actually draw current: motor-pulse load budgets, IEC 60601-2-24 backup-time requirements and a runtime model that survives patient transport.
The MSD, the In-Band Modem and Next-Generation NG-eCall
2026-09-04
Inside the 140-byte EN 15722 MSD, 3GPP TS 26.267 in-band modem transfer with turbo coding, and NG-eCall over IMS/SIP with a MIME MSD body.
The eCall Backup Battery: Designing Power That Survives the Crash
2026-09-04
The UN R144 5+56+5 minute profile, -40 to +85 C and 10-year life, cellular pulse loads, and the NiMH versus lithium chemistry choice.
Detecting the Crash: Trigger Logic Behind Automatic eCall
2026-09-04
How restraint modules classify collision pulses, and how thresholds, cross-confirmation, debounce and cancellation windows suppress false calls.
eCall Goes Global: EU 112, UN R144, ERA-GLONASS and Regional Mandates
2026-09-04
Comparing EU Regulation 2015/758, UN R144, the EN/3GPP standards stack, Russia's ERA-GLONASS TR CU 018/2011 and China's frameworks.
Anatomy of an Automatic Emergency Call: The End-to-End eCall Flow
2026-09-04
From crash trigger to PSAP conversation: IVS components, priority call setup, the MSD burst, the shared voice/data channel and callback.
Secure OTA Updates for Vehicles: A/B Partitions and the Secure Boot Chain
2026-09-04
OTA campaign flow, delta updates, fail-safe A/B partitions with rollback, the secure boot chain of trust, anti-rollback and ISO/SAE 21434.
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