Pneumatic direct digital controller
First Claim
Patent Images
1. A pneumatic direct digital controller comprising:
- an air inlet;
an air outlet;
transducer means for connecting said air inlet and said air outlet and for controlling the pressure of air between the air inlet and the air outlet;
a self-contained internal power supply;
a sensor;
wireless means for receiving and transmitting remote signals; and
a direct digital controller operably connected to the power supply, operably connected to and controlling the transducer means, operably connected to the wireless means, and operably connected to the sensor to receive a signal from the sensor;
whereby the pressure of air in the air outlet is controlled in accordance with the signal received from the sensor.
5 Assignments
0 Petitions
Accused Products
Abstract
A pneumatic direct digital control system comprising: an air inlet; an air outlet; a transducer for connecting the air inlet and the air outlet and controlling a flow of air therebetween; a power supply; a sensor; and a direct digital controller. The direct digital controller is operably connected to the power supply. Additionally, the controller is operably connected to and is controlling the transducer.
54 Citations
29 Claims
-
1. A pneumatic direct digital controller comprising:
-
an air inlet; an air outlet; transducer means for connecting said air inlet and said air outlet and for controlling the pressure of air between the air inlet and the air outlet; a self-contained internal power supply; a sensor; wireless means for receiving and transmitting remote signals; and a direct digital controller operably connected to the power supply, operably connected to and controlling the transducer means, operably connected to the wireless means, and operably connected to the sensor to receive a signal from the sensor; whereby the pressure of air in the air outlet is controlled in accordance with the signal received from the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A pneumatic control system comprising:
-
an air supply inlet; a direct digital controller; a self-contained power supply operably connected to the direct digital controller and providing the direct digital controller with a source of power; wireless means, operably connected to the direct digital controller, for transmitting and receiving information and commands to a remote master controller; a remote master controller capable of communicating with the wireless means and capable of transmitting and receiving information and commands; an air outlet; and an electronic-to-pneumatic transducer operably connected to the direct digital controller and operably connected to said air supply inlet and said air outlet whereby the direct digital controller controls the pressure transducer to control the pressure of air passing through the transducer from the air supply inlet to the air outlet. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method of controlling a pneumatic device with a direct digital controller comprising the steps of:
-
providing the direct digital controller with a self-contained power source; receiving, in the controller, a signal from a sensor indicative of a desired condition; receiving, in the controller, a wireless signal from a remote master controller; and controlling a pressure transducer in accordance with the signals received from the remote master controller and the sensor to vary the air pressure of air provided to the pneumatically controlled device. - View Dependent Claims (24, 25, 26, 27)
-
-
28. A wireless, pneumatic, direct digital controller for a variable air volume system comprising:
-
an air inlet; an air outlet; an electronic-to-pneumatic transducer operably connected between the air inlet and the air outlet; wireless means for receiving a remote signal; a direct digital controller operably connected to said wireless means and said transducer whereby the direct digital controller controls the transducer in accordance with the remote signal; a sensor operably connected to the controller; transmitting means, operably connected to the controller, for transmitting a wireless signal indicative of a signal received from the sensor; and a self-contained power supply operably connected to the controller.
-
-
29. A method of replacing a pneumatic thermostat with a direct digital controller comprising the steps of:
- removing the pneumatic thermostat;
installing an electronic-to-pneumatic transducers;
installing a self-contained power supply;
installing and operably connecting a direct digital controller to the transducer and the power supply, installing a wireless transceiver or receiver; and
operably connecting said transceiver or receiver to said direct digital controller.
- removing the pneumatic thermostat;
Specification