H Cad
-
Upload
ctin -
Category
Technology
-
view
364 -
download
0
Transcript of H Cad
Computer Assisted Dispatch (CAD)
A relational database program that deals with assigning resources to
situations
What can you do with a CAD
• Send and receive calls
• Retrieve prior calls
• Access other law enforcement data systems– CLETS– NCIC
• Communicate with co-workers
• Collect statistical information
Components of a CAD
• Work Station
• Dispatcher
• Field Unit
Responsibilities of the Work Station
• Collect information from complainants
• Enter accurate information into the system
Responsibilities of the Dispatcher
• Receive calls from the work station(s)
• Select a field unit to handle the call
• Send the call to the field unit
Responsibilities of the Field Unit
• Respond to the calls sent by the dispatcher
• Keep the dispatcher advised of calls generated by the field unit itself
Ok, so how does the call get from the work station to the field unit?
The clerk at the work station receives a request for service
• Gather the information• Enter it into the
computer• The data travels
through the network to the dispatcher
The dispatcher receives the data from the work station
• Reads the call• Selects a unit or units
to respond to the call• Sends the call to the
unit(s)• The call is broadcast
over radio waves to the radio receiver in the unit
The unit receives the call and responds to the requested location.
• The radio receiver receives the call from the dispatcher
• If the call is for this unit then the call is accepted
• The unit responds to the call and handles the situation
We said that a CAD system is a relational database. So what databases would we have?
• Units
• Current calls or events
• Previous calls or events
• Map page to street address table
• Weapons and/or warrants at a location
Fields in the unit database
• Unit identifier (key field)
• Officer(s) in the unit
• Car identifier number
• Status– Assigned: enroute or arrived– Unassigned: available for calls
Fields in the current calls database
• Event number (key field)
• Type of call
• Location
• Complainant
• Summary of the situation
• Date/Time
• Unit(s) assigned to handle the call