H Cad

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Computer Assisted Dispatch (CAD) A relational database program that deals with assigning resources to situations

Transcript of H Cad

Page 1: H Cad

Computer Assisted Dispatch (CAD)

A relational database program that deals with assigning resources to

situations

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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

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Components of a CAD

• Work Station

• Dispatcher

• Field Unit

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Responsibilities of the Work Station

• Collect information from complainants

• Enter accurate information into the system

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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

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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

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Ok, so how does the call get from the work station to the field unit?

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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

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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

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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

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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

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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

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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