A packing station is the foundational infrastructure for shipment evidence recording in e-commerce warehouses. Four parameters — table dimensions, camera height, shooting angle, and lighting configuration — determine whether your shipment videos can serve as valid evidence in post-sale disputes. This guide breaks down the recommended values, inspection criteria, and common pitfalls for each parameter, designed for warehouse setup managers to implement directly.
1. Table Dimensions Planning: Shooting Range as the Primary Constraint
Table dimensions are not arbitrary — the first constraint is the camera's shooting range. Compact models cover approximately 118×67cm, while premium models reach up to 160×70cm. The table's length and width must not exceed this range; otherwise, items placed near the edges will fall outside the frame, creating evidence gaps during post-sale disputes.
In practice, table dimensions should be 5-10cm smaller than the shooting range on each side as a safety margin. For example, with a device offering a 160×70cm shooting range, the table should be kept within 155×65cm. Table depth (front-to-back) is equally constrained — excessive depth causes items at the far end to exceed the camera's coverage area.
Setup sequence matters: for new workstations, confirm the device's shooting range before specifying table dimensions; for existing tables, measure the surface first and then select a matching device. Reversing this order — building the table first and finding a device later — frequently results in tables too large for the camera to cover.
For table surface material, a light-colored matte panel is recommended. Light surfaces improve overall image brightness and reduce shadow interference; dark surfaces make product details difficult to distinguish; reflective stainless steel surfaces produce glare that severely degrades image clarity.
2. Camera Mounting Parameters: Height, Position, and Fixation
Three core parameters must be precisely set for camera mounting.
Mounting Height: The vertical distance from the camera to the table surface should be 80-100cm. Below 80cm, the shooting range is insufficient to cover the entire table; above 100cm, small item details become blurred and waybill numbers difficult to read. The 80-100cm range represents the optimal balance between coverage area and detail clarity. Note that this is the distance from the lens to the table surface, not the total stand height — the total stand height must also account for the table's own height (typically 75-80cm).
Horizontal Position: The camera should be centered directly above the table, with no lateral offset. Offset causes image edge distortion on one side and cropped items at the far end. After installation, measure the distance from each of the four table corners to the lens — a corner distance variance of no more than 3cm is considered acceptable. Larger variances require horizontal repositioning of the stand.
Fixation Method: For permanent workstations, a dedicated column stand is recommended for maximum stability; for scenarios requiring flexible adjustment, a converted monitor arm provides versatility but its damping must be securely tightened. Phone mounts or spring clips are not recommended — continuous vibration during packing causes frame shake, making recorded waybill numbers illegible.
Cable management also requires planning: power and data cables should be routed along the column's cable channel, not suspended across the table area. Suspended cables both obstruct the frame and collect dust; they should be secured with cable ties to the back of the stand column.
3. Shooting Angle: Overhead Advantages and Inspection Standards
For shooting angle, overhead (90° vertical top-down) is the only recommended approach.
Many warehouses use angled shooting (camera positioned at 45-60° to the table), primarily because standard surveillance cameras lack overhead mounting brackets and can only be wall- or column-mounted at an angle. However, angled shooting has two fundamental flaws: first, when boxes are sealed, the elevated box height blocks items and accessories at the far end; second, items at the far end of the table are compressed by perspective, making details indistinguishable.
Overhead shooting ensures all items on the table are displayed flat, with no obstruction during box sealing and label application. The inspection method is straightforward: place a ruler flat on the table surface and observe it in the frame — it should appear as a standard rectangle, not a trapezoid. If a trapezoid appears, the overhead angle has deviation and needs fine-tuning to a true top-down position. Permissible deviation is no more than 5°; beyond this, edge perspective distortion becomes apparent.
Some sellers believe angled shooting provides a more three-dimensional view of product sides, but the core purpose of shipment evidence recording is to completely document the table operation process, not to produce product showcase images. Overhead shooting maximizes information capture and minimizes obstruction — this is the correct angle for packing station monitoring.
4. Lighting Configuration: Three-Step Method and Illuminance Standards
Lighting is implemented in three steps, with the core objective of eliminating dead spots and shadows on the table surface.
Step One — Main Light Source: Install one LED panel light on each side above the table, angled at 45° downward. The two lights are symmetrically positioned to eliminate unilateral shadows. Color temperature should be 5500-6000K natural white light; 3200K warm light must not be used — warm light causes product color reproduction distortion, and during disputes, the counterparty's claim of "color mismatch" can significantly undermine the evidentiary value of your video.
Step Two — Front-Edge Fill Light: Install an LED light strip along the front edge of the table (the side closest to the operator) to eliminate shadows cast by hands and body. During packing, both hands operate on the table surface; with only overhead lighting, a large shadow area forms beneath the hands, precisely obscuring the items being displayed.
Step Three — Background Reflection: Place a light-colored matte backdrop panel behind the table. Even without additional lighting, it improves overall brightness uniformity through reflection. Use a lux meter or smartphone light meter app to measure five points (four corners and center) on the table — illuminance should be no less than 500 lux, with variance between corners and center not exceeding 20%. Variance exceeding 20% indicates a significant dark zone, requiring light position adjustment or additional fill lighting.
LED Power Reference: Calculated by table surface area, approximately 150-200W of LED power is needed per square meter (accounting for lampshade loss). A standard packing table of approximately 1 square meter requires two LED panel lights totaling 150-200W to meet the 500 lux illuminance requirement.
5. Common Packing Station Setup Pitfalls
6. Post-Build Inspection Checklist
After completing the packing station setup, verify each item on the following checklist:
Frame Coverage Check: Place markers at all four corners of the table and verify they are all within the frame, with no cropping.
Clarity Check: Place the smallest item on the table (such as an earring or screw) and confirm whether details are discernible. Unclear small items indicate that camera height or angle needs adjustment.
Illuminance Check: Use a smartphone light meter app to measure five points (four corners + center) and confirm uniformity within 20% and illuminance no less than 500 lux.
Stability Check: Lightly tap both sides of the table — the frame should not exhibit visible shake. If shake occurs, check stand damping and mounting screws.
Angle Check: Place a ruler flat on the table — it should appear as a rectangle in the frame, not a trapezoid. A trapezoidal appearance indicates overhead angle deviation requiring fine-tuning.
All five items must pass for the packing station to be considered qualified. A weekly quick re-inspection is recommended: spend 30 seconds reviewing the frame after powering on Monday morning to confirm that camera position, angle, and lighting have not shifted. Equipment displacement is the most common issue — developing a power-on inspection habit is more effective than remedial fixes after the fact.
FAQ
What is the recommended table surface height?
The operating surface height should be 75-80cm (standard desk height), and the camera-to-table distance should be 80-100cm — these are independent parameters. Table height affects operational comfort; camera height affects recording quality.
What if my existing table exceeds the shooting range?
Two options: replace with a device offering a larger shooting range; or mark the shooting range boundary on the table with tape and perform all operations within that boundary.
Can natural light be used?
Not recommended. Natural light intensity and color temperature fluctuate throughout the day — morning and afternoon recordings will show inconsistent colors, and the counterparty may challenge the consistency of the footage during disputes. Artificial lighting provides stable, controllable illumination, which is a necessary condition for packing station monitoring.
How to standardize setups across multiple workstations?
Complete the build and inspection at one workstation first, record all parameters (table dimensions, camera height, light distance, light wattage), then replicate these parameters to other workstations. Each workstation must be independently inspected — do not assume that identical parameters guarantee identical results.