Use Cases
Entering the Main Gate
A. A valid code is inputted via the keypad.
1. Press “Start” on the keypad.
2. Type in the 4digit code on the keypad.
3. Press the “OK” button.
4. Door unlocks for 30seconds.
5. Door relocks.
B. An invalid code is inputted via the keypad.
1. Press Start on the keypad.
2. Type in a wrong code on the keypad
3. Press the “OK” button.
4. Door remains locked.
5. The doorbell chime rings to let the office staff know someone is having trouble.
C. Office staff buzzes someone in manually. Note: This is the existing use case
1. Guest presses “Doorbell” button on the keypad. The doorbell chime rings.
2. Office staff visually authenticates the guest.
3. Office staff presses one of the red buttons at their desk.
4. Door unlocks for 30seconds.
5. Door relocks.
D. Fire authority uses key to disarm the gate in the event of an emergency.
1. Fire authority turns key
2. Door unlocks
3. Alarm goes off in office.
4. Door remains unlocked until the key is used to rearm the gate.
Exiting the Main Gate
A. Authorized Exit
1. User presses the green button.
2. Door unlocks for 30seconds.
3. Door relocks.
B. Unauthorized Exit
1. User presses the touch-bar. Note: The touch-bar contains a touch sensor. This is a safety feature to allow people to escape in the event of an emergency.
2. Door unlocks.
3. Alarm goes off in office.
4. When the door is closed, the alarm goes off.
5. Door immediately relocks.
Entering the Far Gate
A. Key is used to unlock gate
1. User unlocks the gate with the key
2. Door unlocks (mechanically).
3. Alarm goes off in office.
4. When the door is closed, the alarm goes off.
5. Door immediately relocks (mechanically).
Exiting the Far Gate
B. Unauthorized Exit
1. User presses the push-bar.
2. Door unlocks (mechanically).
3. Alarm goes off in office.
4. When the door is closed, the alarm goes off.
5. Door immediately relocks (mechanically).
Arming/Disarming the Gate
Arming/Disarming the gate is done via the toggle switch on the right side of the gate control box in the preschool Front Office closet.
System Components
The Gate System consists of several components
- Door-Open Sensors
- Procare KEIS Entry Keypad
- Securitron Touch Bar
- Securitron Electromagnetic lock
- Alarm
- Door Bell Chime
- Brainbox Network RS232 Adapter
- Doorbell transformers
- Exit button
- Entry “buzz” style buttons
- 555 timer
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| Gate Controller System |
The wiring for all these components are brought to a secured electrical box. Most of the components are connected in wired AND/OR configurations that allow different parts of the system to deactivate the magnetic lock or activate the alarm.
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| Assembled PCB |
Originally I was using screw terminal strips and doing all the wiring with jumpers, but this got pretty messy with all the connections. To clean things up I designed a simple PCB.