Manual
Table Of Contents
- Introduction
- Getting Started
- VCA Feature Packages
- Accessing VCA Configuration
- Activation
- Obtaining an Activation Code
- Applying an Activation Code to a Unit
- Switching VCA On and Off
- Enabling Metadata Streaming
- Configuration of Zones and Rules
- Customizing the Tracking Display
- Creating Detection Zones and Lines
- Creating a Zone or Line
- Non-Detection Zones
- Detection Rules
- Object Presence
- Object Direction
- Object Enter and Exit
- Object Appear and Disappear
- Object Dwell
- Object Stopped
- Object Class
- Object Tailgating
- Object Speed
- Object Color Filter
- Counting Line
- Camera Calibration
- Calibration Page Elements
- Calibrating a Camera
- Advanced Calibration Parameters
- Vertical Field of View
- Measurement Units
- Object Classification
- Logical Rules
- Adding and Removing Logical Rules
- Editing Logical Rule Clauses
- Editing Logical Rule Actions
- Clause Types
- Action Types
- Counters
- Creating Counters
- Assigning Rules to Counters
- Counter Storage and Reporting
- Counter Database Service
- Counter Reporting Service
- Email Notification
- Enable Email Notification
- Adding a New Email Notification Recipient
- Email Configuration
- Name
- Description
- Email Address
- Schedule Configuration
- Current Device Time
- Enable Hourly Report
- Trigger Time
- Weekday
- Enable Daily Report
- Trigger Time
- Weekday
- Enable Weekly Report
- Trigger Day
- Trigger Time
- Enable Monthly Report
- Trigger Day
- Trigger Time
- Report Configuration
- Time
- Report All Data
- Time Range
- Counter ID
- Table (Sampling)
- Sorting Order
- Value Type
- Format
- Send Test Report
- Importing Data into Microsoft Excel
- Other Reports
- Heatmap Reporting
- Events Reporting
- Tracks Reporting
- Tamper Detection
- Scene Change Detection
- Burnt-in Annotation
- PTZ Profiles
- PTZ Control Element
- Configure a PTZ Preset
- Create VCA Profile
- Delete VCA Profile
- Disable PTZ Preset
- PTZ Configuration and Auto-Tracking
- PTZ General Configuration
- PTZ Auto-tracking Configuration
- Importing & Exporting VCA Configuration
- Generating External Event Notifications
- Advanced VCA Settings
- Alarm Holdoff Time
- Measurement Units
- Metadata Format
- Event
- Object
- Counting
- Do not send empty metadata packets
- Blob
- Tamper Diagnostics
- Counting Line Diagnostics
- Scene Change Diagnostics
- More Information
- Stationary Object Hold-on Time
- Tracking Options
- Minimum Tracked Object Size
- Display Options
- Minimum Alarm Object Display Time
- Minimum Object Display Time
- Detection Point of Tracked objects
- People Tracker
05-2018-A
Ganz GXi Series VCA Interface Manual V3.05.31.18
53 | P a g e
Before Clause
The 'before' clause adds the requirement that one of inputs to an 'and' clause must start before another.
The input clauses to be constrained are chosen using their clause id which is the number in square
brackets at the start of the clause sentence on the web page. The 'before' clause can only be created as
an input to an 'and' clause and can only refer to other inputs of the same 'and' clause.
The example below shows how the 'before' clause constrains an 'and' clause to only match inputs that
occur in the correct order.
The first presence event from zone 0 occurs before the first presence event from zone 1, so the logical
rule is triggered.
The second event from zone 0 occurs after the second event from zone 1, so this time the logical rule
does not get triggered.