Distributed air flow method and system

Abstract

A method and for stabilizing directional airflow and correcting deviations from a calibrated directional airflow is presented. A parametric delta value between dynamic values of electrical circuits is established, wherein the parametric delta value when maintained indicates that a certain parameter of an inflow or an outflow from a vent of other dynamic air transfer structure or system is instantiated. Upon detection of a deviation from a pre-calibrated parametric delta value, the method teaches, and the system performs, a variation of an airflow damper that drives the system back to exhibit of the pre-calibrated parametric delta value between two pre-selected electrical or electronic components.

What is claimed is: 
     
         1 . A method comprising;
 a. positioning a first thermistor and a second thermistor within a same air duct, whereby the first thermistor and the second thermistor are exposed to a same volumetric air flow;   b. establishing the volumetric airflow through the air duct at a specified flow value;   c. selecting a desired temperature delta to be maintained between the first thermistor and the second thermistor, the desired temperature delta correlated to a resistance delta to be exhibited between a first thermistor resistance and a second thermistor resistance;   d. imposing a first reference current through the first thermistor, whereby the measured first thermistor resistance value is substantially determined by a contemporaneous aggregate air temperature of the air flow;   e. imposing a variable second reference current through the second thermistor, whereby a variably imposed resistance level of the second thermistor is variably and substantially determined by a magnitude of heat received by the second thermistor from the second reference current;   f. positioning a servo-motor controlled air flow damper within the air duct; and   g. directing the servo-motor to adjust the air flow damper to drive the second thermistor to a resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range.   
     
     
         2 . The method of  claim 1 , wherein a valuable current provided to the second thermistor is pulse width modulated. 
     
     
         3 . The method of  claim 1 , wherein the air duct provides air flow selected from the air flow group consisting of supply air flow, return air flow, and exhaust air flow. 
     
     
         4 . The method of  claim 1 , wherein the servo-motor controlled air flow damper comprises a plurality of vents coupled with a rack and pinion motivator. 
     
     
         5 . The method of  claim 1 , wherein the servo-motor controlled air flow damper comprises a linear servo motor controlled aperture. 
     
     
         6 . The method of  claim 1 , wherein the servo-motor controlled air flow damper comprises a continuous rotation motor controlled aperture. 
     
     
         7 . The method of  claim 1 , further comprising storing the resistance delta in a digital memory. 
     
     
         8 . The method of  claim 1 , further comprising updating the resistance delta to a different value. 
     
     
         9 . A device positioned relative to an air duct, the air duct channeling a volumetric airflow, the system comprising;
 a controller communicatively coupled with a first thermistor and a second thermistor positioned within the air duct, whereby the first thermistor and the second thermistor are exposed to a same volumetric air flow and the controller monitors a first thermistor resistance value of the first thermistor and a contemporaneous second resistance value of the second thermistor;   a memory element communicatively coupled with the controller, the memory element storing a resistance delta value;   a means to impose a first reference current through the first thermistor, whereby the first thermistor resistance value is substantially determined by a contemporaneous aggregate air temperature of the air flow;   a means to impose a variable second reference current through the second thermistor, whereby a variably imposed resistance level of the second thermistor is variably and substantially determined by a combination of a magnitude of heat received by the second thermistor from the second reference current and heat transferred from the second thermistor to the air flow;   a servo-meter coupled with a servo-motor controlled air flow damper;   the servo-motor controlled air flow damper comprising an air flow damper controlled by the server motor, and the servo-motor managed by power adjustably controlled by the controller, and the air flow damper positioned within the air duct; and   the controller adapted to receive instantaneous resistance measurements from both the first thermistor and the second thermistor, and thereupon to direct the servo-motor to adjust the air flow damper to modify volumetric airflow of the air duct and thereby cause the second thermistor to achieve a resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range.   
     
     
         10 . The device of  claim 9 , wherein the means to impose the second reference current through the second thermistor is a pulse width modulated current source. 
     
     
         11 . The device of  claim 9 , wherein the controller is coupled with the means to impose the second reference current through the second thermistor, and the control logic directs a second reference current delivered to the second thermistor. 
     
     
         12 . The device of  claim 9 , further comprising a communications channel coupled with the controller, and the controller adapted to receive the resistance delta value and store the resistance delta value in the memory element. 
     
     
         13 . The device of  claim 9 , wherein the memory element is comprised within the controller  1 . 
     
     
         14 . The device of  claim 9 , wherein the controller comprises programmable logic. 
     
     
         15 . The device of  claim 9 , wherein the controller contains programmed logic that enables the controller to direct the servo-motor to adjust the air flow damper to drive the second thermistor to a resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range. 
     
     
         16 . The device of  claim 9 , further comprising a memory module bi-directionally coupled with the controller, and the memory module contains software encoded instructions that operatively directs the controller to perform the following:
 a. receive contemporaneous resistance measurements from both the first thermistor and the second thermistor, and   b. thereupon direct the servo-motor to adjust the air flow damper to modify volumetric airflow of the air duct and thereby cause the second thermistor to achieve the resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range.   
     
     
         17 . The device of  claim 16 , wherein the means to impose the second reference current through the second thermistor is a pulse width modulated current source. 
     
     
         18 . The device of  claim 16 , further comprising a communications channel coupled with the controller logic, and the controller logic adapted to receive an updated resistance delta value and store updated resistance delta value in the memory element. 
     
     
         19 . The device of  claim 18 , wherein the communications channel comprises a wireless communications receiver, and the updated resistance delta value is received via the wireless communications receiver. 
     
     
         20 . A system comprising:
 at least two devices of  claim 9 , and the controller logic of each device comprising a bi-directional wireless communications transceiver; and   a remote server bi-directionally communicatively coupled with the at least two devices and adapted to exchange information with the at least two devices.   
     
     
         21 . A method comprising;
 a. positioning a first thermistor and a second thermistor within a same air duct, whereby the first thermistor and the second thermistor are exposed to a same volumetric air flow;   b. establishing the volumetric airflow through the air duct at a specified flow value;   c. selecting a desired temperature delta to be maintained between the first thermistor and the second thermistor, the desired temperature delta correlated to a resistance delta to be exhibited between the first thermistor resistance and the second thermistor resistance;   d. imposing a first reference voltage across the first thermistor, whereby the measured first thermistor resistance value is substantially determined by a contemporaneous aggregate air temperature of the air flow;   e. imposing a variable second reference voltage across the second thermistor, whereby a variably imposed resistance level of the second thermistor is variably and substantially determined by a magnitude of heat received by the second thermistor from the second reference voltage;   f. positioning a servo-motor controlled air flow damper within the air duct; and   g. directing the servo-motor to adjust the air flow damper to drive the second thermistor to a resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range.   
     
     
         22 . The method of  claim 21 , wherein the air duct provides air flow selected from the air flow group consisting of supply air flow, return air flow, and exhaust air flow. 
     
     
         23 . The method of  claim 21 , wherein the servo-motor controlled air flow damper comprises a plurality of vents coupled with a rack and pinion motivator. 
     
     
         24 . The method of  claim 21 , wherein the servo-motor controlled air flow damper comprises a linear servo motor controlled aperture 
     
     
         25 . The method of  claim 21 , wherein the servo-motor controlled air flow damper comprises a continuous rotation motor controlled aperture. 
     
     
         26 . The method of  claim 21 , further comprising storing the resistance delta in a digital memory. 
     
     
         27 . The method of  claim 21 , further comprising updating the resistance delta to a different value. 
     
     
         28 . A device positioned relative to an air duct, the air duct channeling a volumetric airflow, the system comprising;
 a controller logic communicatively coupled with a first thermistor and a second thermistor positioned within the air duct, whereby the first thermistor and the second thermistor are exposed to a same volumetric air flow and the controller logic monitors a first thermistor resistance value of the first thermistor and a contemporaneous second resistance value resistance value of the second thermistor;   a memory element communicatively coupled with the controller logic, the memory element storing a resistance delta value;   
       a means to impose a first reference voltage across the first thermistor, whereby the first thermistor resistance value is substantially determined by a contemporaneous aggregate air temperature of the air flow; 
       a means to impose a variable second reference voltage across the second thermistor, whereby a variably imposed resistance level of the second thermistor is variably and substantially determined by a combination of a magnitude of heat received by the second thermistor from the current through the second thermistor given the second reference voltage and heat transferred from the second thermistor to the air flow;
 a servo-motor controlled air flow damper comprising and air flow damper controlled by the server motor, and the servo-motor managed by power adjustably controlled by the controller, and the air flow damper positioned within the air duct; and 
 
       the controller adapted to receive instantaneous resistance measurements from both the first thermistor and the second thermistor, and thereupon to direct the servo-motor to adjust the air flow damper to modify volumetric airflow of the air duct and thereby cause the second thermistor to achieve the resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range. 
     
     
         29 . The device of  claim 28 , wherein control logic is coupled with the means to impose the second reference voltage across the second thermistor, and the control logic directs a second reference voltage level delivered to the second thermistor. 
     
     
         30 . The device of  claim 28 , further comprising a communications channel coupled with the controller logic, and the controller logic adapted to receive the resistance delta value and store the resistance delta value in the memory element. 
     
     
         31 . The device of  claim 28 , wherein the memory element is comprised within the controller logic. 
     
     
         32 . The device of  claim 28 , wherein the controller logic comprises programmable logic. 
     
     
         33 . The device of  claim 28 , wherein the controller logic contains programmed logic that enables the controller logic to direct the servo-motor to adjust the air flow damper to drive the second thermistor to a resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range. 
     
     
         34 . The device of  claim 28 , further comprising a memory module bi-directionally coupled with the controller logic, and the memory module contains software encoded instructions that operatively directs the controller to perform the following:
 a. receive contemporaneous resistance measurements from both the first thermistor and the second thermistor, and   b. thereupon direct the servo-motor to adjust the air flow damper to modify volumetric airflow of the air duct and thereby cause the second thermistor to achieve the resistance value equal to the sum of the measured first thermistor resistance value and the resistance delta and within a pre-specified resistance value tolerance range, whereby the volumetric airflow of the air duct is maintained at the specified flow value within a pre-specified air flow variance tolerance range.   
     
     
         35 . The device of  claim 34 , further comprising a communications channel coupled with the controller logic, and the controller logic adapted to receive an updated resistance delta value and store updated resistance delta value in the memory element. 
     
     
         36 . The device of  claim 35 , wherein the communications channel comprises a wireless communications receiver, and the updated resistance delta value is received via the wireless communications receiver. 
     
     
         37 . A system comprising:
 at least two devices of  claim 28 , and the controller logic of each device comprising a bi-directional wireless communications transceiver; and   a remote server bi-directionally communicatively coupled with the at least two devices and adapted to exchange information with the at least two devices.