PetSafe SmartDoor Plus Pet Door, Selective Entry/Exit with Programmable Timer, White, Small
FIG. 4 also shows an OR-gate comprising a pair of diodes connected to first amplifier output 140and second amplifier output 160on one side and to lockout timer 120 on the other side. First amplifier 140 is made to respond to the detector signal slightly slower than second amplifier 160 responding to the gyro signal. Thus, the gyro signal pulse occurs slightly before the detector signal pulse, even if the detector signal and the gyro signal occur simultaneously. Accordingly, pet door 30 is prevented from being lifter in the open position either when the hinged door moves first or when the hinged door movement and the detector signal occur simultaneously.
If the detector signal and the gyro signal occur simultaneously (i.e. when the pet approaches pet door 30 and the pet owner starts opening the hinged door at the same time), the gyro signal pulse occurs slightly before the detector signal pulse. This engages lockout timer 120 before open door timer 130 has the opportunity to be engaged by the detector signal pulse and keeps pet door 30 from being lifted between the closed and open positions.
Cat Mate 359 Pet Door | Electronic Cat Door with Timer - Pet Doors
Jun 28, 2017 - Are you looking for a pet door with a timer feature
There are many manufacturers producing electronic pet doors to make your life and the life of your furry friends easier and safer. While electronic pet doors offer the basic functionality of a pet door, to let your dog or cat outside and then back in again, their options and purpose vary. Like manual pet doors, electronic dog and cat doors can be installed in human doors, walls, sliding glass doors and sash windows. Additionally, they can prevent unwanted animals from entering your home (a couple of models keep out raccoons), restrict which pets are allowed to use the door, some feature timer controls and some can even raise the “flap” for the pet! Let’s review some of the most popular models of these doors and their features.Your POWER PET PX Features a smart sensing circuit that keeps the door panel open as long as it is receiving the signal from your pet's collar. Once your pet has moved completely through the opening, the panel immediately closes. No need to adjust a manual timer. The POWER PET is smart enough to know exactly when it's time to closeThe DualScan and Pet Door models are raccoon proof, and the Pet Door has a timer function so that it can be set for in-only mode after a specified time at night, and then it won't let the pets back out until the specified time in the morning. The timer or curfew function is great for cat owners who want to keep their pets in at night, and also for dog owners who have a dog that runs outside and barks after they leave for work early in the morning.It features a smart sensing circuit that keeps the door panel open as long as it is receiving the signal from your pet's collar. Once your pet has moved completely through the opening, the panel immediately closes. No need to adjust a manual timer. The Electronic Patio Pet Door is smart enough to know exactly when it's time to close. On the other hand it is safe for all pets and people, including small children. It closes smoothly by gravity.