# Mobile (Vehicle-Mounted) ALPR A subtype of [[Automatic License Plate Reader (ALPR)|ALPR]] deployment in which **the camera, processing unit, and platform connection are installed in a patrol vehicle rather than on a fixed pole** at a static location. Mobile LPR systems sweep plates wherever the officer drives — producing a different operational data shape than fixed-network LPR: lower per-camera read volume (since the camera is only active when the vehicle is in use), but broader spatial coverage and more flexible deployment. The corpus's documented instance is **PCSO Patrol Unit 913**, equipped in February 2021 with a [[Genetec, Inc.|Genetec]] AutoVu Patroller system as part of the federal PSN18 grant procurement; see [[SkyCop Invoice 8381 — Pulaski County Genetec System]]. ## How it appears in the corpus **The PCSO Patrol Unit 913 mobile-LPR deployment (February 2021):** Per the PSN18 closeout Equipment Inventory Report and the [[SkyCop, Inc.]] Invoice #8381 (09/08/2021), the mobile LPR system installed in Patrol Unit 913 consisted of: | Component | Cost | Function | |---|---:|---| | **(Mobile) SC-AU-X-XPU-X1S** — Genetec SharpX system main processing unit X1S, single processor configuration | $5,780 | The vehicle-mounted processing brain | | **(Mobile) SC-AU-XS-VGA-GENERIC** — 2 Generic Sharp XS VGA cameras | $5,000 (qty 2) | The two vehicle-mounted plate-reading cameras | | **(Mobile) SC-LPR Rapid Deployment Case** | $700 | Pelican case with power supply, cables, quick disconnects for moving the system between vehicles | | **(Mobile) SC-G-AU-P-MBASE PATROLLER** — Genetec AutoVu Patroller vehicle software license + 1 patroller license | $0 (included) | The vehicle-application software that captures plates and routes them to Security Center | | **(Mobile) SC-AU-M-OFFLINEMAP-NA** — Mapping license including data from North America (per vehicle license) | $500 | Vehicle-specific mapping for plate-location correlation | | **(Mobile) SC-ADV-LPR-M-J1Y** — Genetec Advantage 1 AutoVu mobile system connection to Security Center, 1 year | $200 | Annual cloud-platform connection license | | **(Mobile) Installation and Programming** | $200 | Vehicle installation labor | Total mobile-LPR equipment cost: approximately **$12,580** of the $75,287.29 PSN18 grant. The remainder funded the 3 fixed multi-camera SkyCop enclosures at Arch St, McArthur Dr, and Frazier Pike. ### Cabot Mobile Axon LPR period Cabot's semiannual reports document Mobile Axon LPR operating alongside its fixed Flock deployment in late 2023 and early 2024. Cabot attributed 370 non-correlating alerts in July-December 2023 and 762 of 763 in January-June 2024 to Mobile Axon. Its January-June 2025 report says the agency was no longer integrated with Axon because the results "were inaccurate and provided almost all false hits" ([[Cabot Semiannual LPR Reports]], cited reports, p. 1). The contractual and finance productions establish a five-unit agreement carrying ALPR licenses through January 2030, unanimous Council authorization, and a March 2025 payment of `$79,792.07` for five Fleet 3 Advanced systems ([[Cabot Axon Fleet 3 Agreements and Invoice]]; [[Cabot Axon Vendor Ledger Resolutions and Grant Records]], pp. 1, 48–49, 97–98). They do not establish that Cabot activated, continued, or disabled those ALPR licenses. The resulting operational question is preserved at [[T021 - Cabot Axon LPR Discontinuation Reports vs 2024 Renewal Agreement]]. Cabot's report is not an independent product error-rate study. ### Hot Springs Vigilant mobile-service features Hot Springs' May 2021 Vigilant form selects a Standard LPR package that includes CarDetector Mobile Hit Hunter and Mobile Companion. A July 2021 form repeats those services and lists six L5Q camera-license keys, but that form is unsigned and neither record identifies a vehicle installation, invoice, renewal, or current status ([[Hot Springs Vigilant Agreements and Legacy ALPR]], `VIGILANT Enterprise Service Agreement (ESA).pdf`, p. 6; `VIGILANT Enterprise Service Agreement (ESA) - L5Q.pdf`, pp. 6, 9). ### Jonesboro fleet-scale deployment Jonesboro PD's Section 1 production lists **116 camera-equipped vehicles** by unit number, make/model, VIN, and division (95 patrol, 8 K9, 5 traffic, 4 SRO, 3 warrants, 1 CID), and its transmittal states "we have roughly 85 AXON systems mounted on patrol cars" with one unit carrying three Vigilant cameras ([[Jonesboro Unit LPR Vehicle List]]; Gmail message `19f8fde41db5c885`). The list carries no per-unit vendor or capability field, so the 85-versus-116 relationship — and whether every listed camera is an LPR — is unresolved. This is the corpus's largest documented mobile camera fleet. ## Operational characteristics - **Activation window:** mobile LPR is active only when the patrol vehicle is in use. PCSO Patrol Unit 913 presumably operated mobile-LPR during officer shifts; the system likely paused when the vehicle was at the station or off-duty. - **Spatial flexibility:** the mobile-LPR system reads plates of every parked or moving vehicle the patrol unit drives past — producing a much broader spatial-coverage profile than fixed cameras at single locations. - **Officer-context integration:** mobile LPR can be correlated with officer activity (an officer driving a specific neighborhood produces a localized plate-read footprint; a high-traffic patrol route produces a different one). - **Lower data-flow per camera:** mobile LPR captures only when the vehicle is moving; a 24/7 fixed camera at an arterial intersection produces 10-100× more reads per day than a single mobile system. ## Comparison with fixed-camera ALPR | Dimension | Mobile (Patroller) LPR | Fixed (Falcon) LPR | |---|---|---| | Activation | Vehicle-state-dependent | 24/7 (solar-powered) | | Spatial coverage | Broad, varying with patrol pattern | Single location, fixed | | Per-camera read volume | Low (officer-shift-dependent) | High (10,000+ reads/day at arterial sites) | | Operational accountability | Tied to specific officer/vehicle | No officer association at read time | | Vendor lock-in (Flock model) | Less applicable (mobile is one-time hardware) | Higher (recurring subscription) | | Permit requirements | None (vehicle-mounted) | Possible (pole permits, ARDOT permits) | ## Notes - **Jacksonville's 2026 VehicleManager system report** lists ten mobile systems and three standalone systems, with 37 total camera-channel lines. Mobile rows carry `IP`, `M500 IP`, and `VLP(ABOX)` labels. The report supplies no coordinates, installation dates, or status and does not reconcile a separate eight-row device screenshot ([[Jacksonville VehicleManager System and Data-Sharing Reports]], p. 1). - **Jacksonville's procurement layer** includes five M500 LPR integration licenses added in 2023 and renewed in 2026 alongside two VideoManager EL Cloud subscriptions. The purchase records do not reconcile those five licenses to the system report's ten mobile-system rows ([[Jacksonville Motorola Vigilant Procurement and Renewals]]). - **The mobile/fixed split at PCSO 2021** is the corpus's first documented Arkansas LE-agency hybrid ALPR deployment. 6 fixed cameras at 3 sites + 1 mobile-LPR in Patrol Unit 913 is a 2-axis deployment producing both the wide-area passive surveillance (fixed cameras) and the officer-driven active surveillance (mobile). - **PCSO's 2023 transition to Flock did not include a mobile-LPR component** in the documented contract. The 6 Falcon cameras at the ARDOT-permitted locations are all fixed. Whether PCSO retained or replaced the mobile Patrol Unit 913 system independently is not in the corpus. - **Whether other Arkansas LE agencies operate mobile-LPR systems** is not directly documented in the corpus. [[Conway Police Department]]'s pre-Flock procurement was structured around fixed cameras (per the SkyCop estimate documented in `PD-2026-477`). [[Fayetteville Police Department]]'s Axon Fleet 3 trial was vehicle-mounted but is a different product category (in-car video with LPR feature activated on existing in-car cameras). - **The Genetec AutoVu Patroller** is a specific product line that has been the LE-mobile-LPR market standard for over a decade. Flock's Falcon Flex is a partial competitor in the location-flexible category but is structurally different (portable / self-installation vs. vehicle-mounted with installation by the integrator). - *Observation, distinct from the record:* mobile LPR is operationally accountable in ways fixed LPR is not — every plate read is associated with a specific officer/vehicle/shift. This creates a different surveillance-data civil-liberties profile (the reads can be attributed to specific government-employee conduct) but also a different operational-utility profile (the reads can be correlated with documented police activity in space and time).