Fleet-monitoring device • researched reference design v3

See the real parts behind the concept.

Rotate the model freely, open the enclosure and point at each scaled package to connect it with a real manufacturer, order code, interface and evidence source.

Model-linked register38 identified rows
Catalogue baseline32 researched lines
Safety boundaryNo vehicle control
Inspect the 3D reference design
Revised fleet-monitoring enclosure concept with a parallel lid and six aligned fasteners
The casing remains provisional; the interactive view below adds researched package envelopes and exact interface candidates.

Interactive reference design

Rotate, open and inspect real component packages

Scaled package bodies—simplified pins and pads

One clear label
Preparing the interactive model…
Drag rotateScroll or pinch zoomRight-drag or two fingers movePoint identifyClick or tap pin label

Connection path

How information travels

01Vehicle socket
02Controlled trial adapter
03Locking device port
04Protected power and CAN reader
05Processor and security chip
06LTE and location module
07Fleet dashboard

The USB-C service port follows a separate path to an authorised technician. Diagnostic read requests may transmit a limited query, but the product boundary excludes steering, braking, acceleration, airbag and engine-control commands.

Why the casing changed

The lid now fastens evenly along both long edges

The earlier image did not make every screw-to-post relationship clear. This revision uses one shared pattern for the lid recesses, screw shafts and metal inserts, so every pair is centred on the same axis.

01
Six matched positions

Three fasteners along each long side reduce the chance of the middle lifting.

02
Continuous gasket

The seal sits inside the screw line and is not crossed by cables or mounting holes.

03
Serviceable threads

Captive M3 screws enter metal inserts instead of repeatedly cutting into plastic.

04
No open cooling slots

Heat is handled internally so dust and moisture are not invited into the electronics.

Important boundary

This concept observes and reports. It does not control a moving vehicle.

Diagnostic reading can require a limited query to the vehicle, so “monitoring only” must be enforced by a validated approved-command list and a controlled transmit path—not by pretending the CAN link can never transmit. The design must not command steering, braking, acceleration or airbags, and must never stop a moving engine. Sealing, heat, vibration, EMC, electrical transients and radio approval all require independent testing.