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Taiwan Licence-Plate Recognition Camera User Manual

Smart Vision Camera Series · User manual

1 Package Contents

ItemQtyNotes
Camera1Taiwan licence-plate box camera or bullet camera, as ordered
Power adapter1DC 12V, DC 5.5-2.1 mm connector
Mounting bracket1Matched to the form factor
User manual1Electronic version only; all products ship with an electronic manual

Check that the packaging is intact and all items are present. If anything is missing, do not install the device and contact support. All products ship with an electronic manual only.

2 Before Installation

2.1 Choosing the position

Mounting height3 m ~ 3.5 m for car lanes (above or beside), tilt 10° ~ 25°; 2 m ~ 2.5 m for motorcycle or mixed lanes
Recognition distanceVehicle 3 m ~ 8 m from the lens; plate area at least 1/8 of the frame height
Field of viewLens along the direction of travel, plate facing the lens, no large side angle
LightingAvoid direct headlight glare; provide fill light at night entrances and avoid strong backlight

2.2 Mounting differences

ItemBox cameraBullet camera
PositionWall, door frame, poleCrossbeam, bracket, fence pole
Angle adjustmentFront tilt plus side fixingAdjustable bracket tilt
CablingLead cable, neat wall routingRear cable entry, keep water-tight

2.3 Installation steps

StepActionContent
1Confirm the positionCheck position, angle and cable route on site; aim the lens along the direction of travel
2Fix the bracketFix the bracket to the wall, pole or crossbeam with expansion bolts; make sure it is level and firm
3Mount the camera and route cablesFit the camera to the bracket, set tilt and pan, then tighten; connect the RJ45 cable and the DC 12V power lead and secure the cables with ties
4Power on and aimThe indicator lighting up means power is on; open the web UI, check the live view, confirm plates are sharp and unobstructed, and fine-tune the angle

Safety: power off before removing the sunshield or protective cover; after installation check the water-tight connector seals; IP66 allows rain but not immersion; run cables through conduit beside the lane so vehicles cannot catch or crush them.

3 First-Time Setup

The device is configured through its web UI from a PC, tablet or phone. Google Chrome is recommended on a PC.

Quick preview: the LAN playback address is http://[device IP]/open/live-play/?a=1 (a=1 is channel 1, and so on), which previews the image directly in a browser.

3.1 Tuning plate recognition

SymptomAction
Plate unreadableAdjust the focal length or the device position so the plate covers at least 1/8 of the frame height
Headlight overexposureOn the bullet camera, check the sunshield is fitted; adjust the angle away from direct headlights
Poor recognition at nightAdd ambient light or fill light at the entrance; make sure day/night mode is set to auto
Wrong results on angled platesLarge tilt or side angles distort characters; adjust the mounting angle so the plate faces the lens
Flickering detection boxCaused by vibration; check the bracket is firm and the lane surface is stable
Numbers often misreadUsually the plate is too small, too far or dirty; shorten the distance and clean the lens, then retry

3.2 Setup steps

StepActionContent
1Check connectivityThe PC and the device must be on the same switch or router
2Find and change the device IPUse the Device Search Tool (download link from our sales team). If the device is not found, tick "Force search" in the tool
3Open the login pageEnter the new device IP in Chrome to open the web login page
4Log inUse the factory default account, then change the default password immediately
5Set the system timeClick "Sync with PC time". The device time cannot be set manually and can only be obtained by syncing
6Set the image orientationIn Settings → Image Rotation choose the correct orientation to avoid an upside-down image
7Confirm resolutionThe main stream defaults to 2560×1440 and can be switched to 1920×1080 / 1280×720

4 Status Overview

The configuration UI has two panes: the function menu on top and the content pane below. After logging in you land on Status Overview, which shows how the device is running.

Device informationSerial number, firmware version, uptime
Network informationLocal IP address, network status
UtilisationCPU and memory usage
StorageFree space on the SD card or disk
LanguageChinese / English UI switch

4.1 System time sync

Clicking "Sync with PC time" sets the device time to that of the connected PC. The time cannot be set manually; after a power cycle, sync again if it drifts. Snapshot and recording timestamps rely on the system time, so make sure it is accurate.

Performance note: do not exceed the hardware capacity for concurrent RTSP pulls; CPU usage should stay below 90%.

5 Web UI Reference

The channel settings page configures the video source address, push address, recording switch, HLS switch and snapshots for each channel.

Channel switchEnable or disable pulling for a channel; multi-select for batch switching
Channel previewPreview the configured source; available stream URLs are shown below the image
Video sourceSet the source stream address; ONVIF cameras can be found with the search button
RTMP push addressThe push address provided by your streaming provider
RTMP push switchEnable or disable pushing
Recording switchEnable or disable recording of the video source
HLS switchEnable HLS output (some streaming platforms depend on it)
Source formatShows H.264 / H.265; most platforms only accept H.264 for RTMP push
Pull / push bandwidthBitrate of the source and of the RTMP push
Snapshot settingsSnapshot switch, upload address and interval (requires UI version ≥ 1.20.0.27)
AdvancedCompatibility mode for the source, audio source, UDP and similar options

5.1 Snapshot upload API

Upload URLhttp://[IP]/upload?id=xxx&channel=xxx&filename=snap_0.jpg
MethodPOST, Content-Type: multipart/form-data
Parameter idDevice serial number
Parameter channelChannel number, starting at 1
Parameter filenameUploaded file name
Local snapshot URLhttp://[device IP]/tmp/snap_0.jpg (snap_0 is channel 1, and so on)
Remote snapshot URLhttp://[serial].[cloud domain]:9502/tmp/snap_0.jpg

Note: for other formats or to deliver snapshots to another platform, contact our sales team for custom development.

6 Network Configuration

6.1 Wired network

Single-port devices: with DHCP enabled the router assigns an address (not fixed); disable DHCP to set a static IP. Dual-port devices: eth0 is the WAN port and eth1 the LAN port.

Note: eth0 and eth1 must not be on the same subnet. Before configuration the fixed IP is 192.236.192.15, and the eth1 LAN port cannot be found by the Device Search Tool.

6.2 WiFi and 4G

WiFi2.4 GHz only, no 5 GHz
4G and WiFiChoose one; they cannot be used together
SIM card4G only, no 5G; China Mobile / Unicom / Telecom supported
APN SIMNot supported
IoT SIMUnrestricted IoT SIM cards supported
Directional SIMThe carrier must open the required domains and ports and whitelist them
Overseas SIMSupported; set the matching APN

6.3 Cross-subnet access

WebRTC cross-subnet viewing is supported through protocol traversal on the cloud platform. Once traversal is in place, one terminal can view across subnets without data charges; without it, traffic is relayed by the cloud platform and incurs data charges, with no limit on the number of terminals.

7 Video Sources and ONVIF

7.1 ONVIF search

StepActionContent
1Pre-checksThe camera and the device must be on the same LAN, and ONVIF must be enabled on the camera
2SearchClick the Search button next to the source field; the device scans the LAN for ONVIF IP cameras
3AuthenticateSelect the camera, click Get Stream, and enter the ONVIF user name and password
4Save the streamAfter validation the stream indices appear: 0 = main stream, 1 = sub stream, 2 = third stream; pick one and click Save to Channel
5Check detailsReview bitrate, frame rate and resolution in Stream Details

Common failures: ① the camera and the device are on different subnets; ② ONVIF is not enabled on the camera; ③ SmartH264 / SmartH265 is enabled on the camera and must be turned off, otherwise the camera cannot be found.

7.2 Device capabilities

Interface protocolsONVIF, GB28181; compatible with Hikvision VMS-4200
NVR compatibilityHikvision, Dahua and other mainstream recorders
Remote controlRemote start / stop of recording, snapshot control and capture
Motion-detection callbackNot exposed via SDK in the standard version; only remote video retrieval
Orientation switchSupported but not automatic; set manually in the web UI
Scheduled snapshotsScheduled JPG snapshots uploaded to a cloud server
Secondary developmentHTTP API with full documentation

8 Recording and Storage

8.1 Storage options

SD cardExpandable storage, sized by capacity and retention days
NVRCentral storage on an NVR
Cloud storageSeparate integration and billing; Alibaba Cloud / Tencent Cloud; other providers require assessment
NASNot supported in the standard version; custom integration billed separately

8.2 Recording behaviour

Continuous recordingRound-the-clock recording supported
OverwriteWhen storage is full the oldest files are deleted automatically; recording never stops
RetentionActual days depend on card capacity, bitrate settings and scene activity
Remote controlStart or stop recording remotely from the web UI

Estimate: at 4 Mbps for the 2560×1440 main stream, a 32 GB SD card holds about 17 hours and a 128 GB card about 70 hours. Actual figures depend on encoder settings and scene activity.

9 GB28181 Platform Integration

The camera registers to a GB28181 server as a client so that the platform can manage it centrally.

StepActionContent
1Get platform parametersObtain the SIP service settings from the GB28181 server
2Fill in the settingsEnter the SIP server address, transport protocol, SIP ID, SIP domain and related fields
3Save and registerAfter saving, the device registers with the GB28181 server
4VerifyOnce registered, the device appears in the server device list

Note: acting as a GB28181 server (platform side) is supported only by streaming-server products; this camera only supports registering to a GB28181 platform.

10 FAQ

10.1 Taiwan plate recognition

QuestionAnswer
What is the recognition accuracy?An optional algorithm capability; figures are provided after the algorithm version is confirmed commercially
Which plates are supported?Taiwan new and legacy car plates, motorcycle plates and E-prefix EV plates; see Appendix A
Can it read motorcycle plates?Yes. Motorcycle plates are smaller, so keep them large enough in frame and shorten the recognition distance
Do heavy motorcycle yellow / red plates work?Black on yellow and white on red plates are within range; validate on site
What about damaged or obscured plates?The rate drops sharply; badly damaged plates may produce only a snapshot with no number
What vehicle speed works?Low-speed traffic (≤ 20 km/h). There is no strobe fill light, so high-speed capture needs a dedicated plate-capture device
Recognition is poor at night?Add ambient or fill light and avoid pointing the lens into headlights
Can it do whitelist checks or barrier control?The device outputs results; whitelist comparison and barrier control are implemented on the platform side and require custom integration
Which fields are in the result?Plate number, confidence, snapshot and timestamp; extra fields depend on the API documentation
Can snapshots go to my own server?Yes. Set the upload address in the snapshot settings; JPG over HTTP POST

10.2 Product and system

QuestionAnswer
What operating system does the camera run?Linux
Is secondary development supported, with documentation?Yes, over an HTTP API with full documentation
Is portrait resolution supported?Yes, switched manually in the web UI; it is not automatic
The image is upside down, how do I fix it?Settings → Image Rotation, then choose the correct orientation
Can the resolution be changed?Yes, the main stream supports 2560×1440 / 1920×1080 / 1280×720
Can the device time be set manually?No, only by syncing with the PC time
What is the operating voltage?Above 10.8 V and below 13.2 V
How much power does it draw, and how long will a battery last?Around 12V / 100mA; a 30000mAh battery lasts about 30 hours
Is there a Bluetooth interface?No built-in Bluetooth in the standard version; an external module can be added
Are there IO pins on the board?Yes, TTL and IO
Is the power connector DC 5.5-2.1?Yes

10.3 Network and streaming

QuestionAnswer
How do I push to my own server?Generate an RTMP push address on the server and enter it in the channel settings
What does my server need?RTMP support
Can it push to a locally deployed streaming server?Yes
Is RTSP push supported?No; the push protocol is RTMP
Is it compatible with Hikvision or Dahua recorders?Yes
Do the 4G and WiFi models have a wired port?Yes
Does 4G also support WiFi?No. 4G and WiFi are mutually exclusive (4G SIM only, WiFi 2.4 GHz only)
Is WebRTC cross-subnet viewing supported?Yes, with protocol traversal on the cloud platform. With traversal, one terminal can view across subnets at no data cost; without it, the cloud relays traffic and data charges apply, with no limit on terminals
The camera cannot be found, what should I check?Check the subnet, whether ONVIF is enabled, and whether SmartH264 / SmartH265 is turned off; or tick Force search

10.4 Storage and features

QuestionAnswer
Which storage options are there?SD card; NVR. Cloud storage requires separate integration and billing (Alibaba Cloud / Tencent Cloud); other providers require a cost assessment
Continuous recording? How many days? Does it overwrite?Continuous recording is supported; retention depends on card size, and the oldest files are overwritten automatically
Can recording be started and stopped remotely?Yes
Can it store to a NAS?Not in the standard version; custom integration billed separately
Can it upload scheduled snapshots to a cloud server?Yes, as JPG
Is there snapshot control?Yes
Is motion-detection alarm with SDK data supported?Not currently; only remote video retrieval
Is there a cloud platform?Yes, a test link is available

10.5 4G and SIM cards

QuestionAnswer
Are there SIM restrictions? Do IoT or directional SIMs work?Unrestricted SIMs work, including logistics IoT SIMs; directional SIMs require the carrier to open and whitelist the relevant domains and ports
Does the 4G camera support APN SIMs?No APN SIMs; ordinary unrestricted SIMs only
Do overseas 4G data SIMs work?Yes, with the matching APN
How is the 4G SIM billed?Per carrier plan, as quoted by our sales team
How do I check data balance and top up?Bind the SIM number or ICCID in the device management mini app; the app name is provided by our sales team

11 After-Sales and Warranty

11.1 Terms

WarrantyAs agreed in the commercial contract
Manual formatElectronic manuals only for all products
ReturnsPer the returns policy on the product page

11.2 Support channels

Manuals and FAQdocs.xvipcloud.com
Device Search ToolDownload link from our sales team
Developer documentationdocs.xvipcloud.com
Business contactContact our sales team

11.3 Routine maintenance

Lens cleaningWipe the lens regularly; dust and rain residue affect recognition
Water-tightnessCheck the connector seals before and after the rainy season
Time checkAfter a power cycle, check the system time and re-sync if needed
SD card checkCheck card health regularly; SD cards are wear items
Cable protectionRun cables through conduit beside the lane to avoid knocks and crushing
VentilationDo not enclose the device; ensure airflow under long high-load operation

Appendix A Plate Styles and Recognition Range

Taiwan has issued new-style plates for all cars and motorcycles since December 2012, using a three-letter prefix plus four digits. Legacy plates issued from 1992 are still in wide use. The recognition range is as follows.

A.1 Recognition range

Plate styleFormatExampleNotes
New-style car plate3 letters + 4 digitsABC-1234380 × 160 mm; black on white for private cars, red on white for some commercial categories
New-style motorcycle plate3 letters + 4 digitsABC-1234Smaller than a car plate; black on white for ordinary heavy motorcycles
Heavy motorcycle plate3 letters + 4 digitsABC-1234Black on yellow (over 250 cc), white on red (over 550 cc)
Legacy car / motorcycle plate2~3 letters and 2~4 digits, position variesAA-1234 / AAA-123 / 123-AAAIssued from 1992; still widely in use
EV plateE-prefix and other dedicated rangesEAB-0001Dedicated ranges for electric cars and motorcycles, including white on green styles

A.2 On-site notes

Plate conditionDirt, distortion and decorative frames lower the rate sharply; badly damaged plates may only be snapshotted
Camera angleLarge tilt or side angles distort characters; keep the plate facing the lens
Plate sizeBelow 1/8 of frame height characters cannot be read; shorten the distance or use a longer focal length
Vehicle speed≤ 20 km/h recommended; high-speed capture needs a dedicated plate-capture device

Scope: plate styles and formats follow the current rules of the Taiwan region transport authority. Special plates (temporary, test, diplomatic, brown classic-vehicle plates and similar) are outside standard recognition; validate on site.

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