TOUCH-FREE WATER-CONTROL SYSTEM

Abstract

A system and method of Touch Free Automatic faucet controlled by electronic sensors provides a Primary-Water-Flow-Mode, a Continue-Water-Flow-Mode, a Temperature-Control-Mode, a Faucet-Pause-Mode, an Adjust-Water-Flow-Mode and a Flow-Temperature-Default-Setting-Mode for users to control faucet water flow and water temperature without touching any parts of faucet body. The system comprises at least three electronic sensors, a logical processor circuit board, an electricity power supply package, a water flow control valve assembly, a temperature control valve assembly, at least one faucet body housing and at least one inlet fluid line. From the outputs of the sensors, the logical processor responds to the flow control valve assembly and to the temperature control valve assembly to control water flow and temperature to the faucet spout.

Claims

1. (canceled)

2. A system for controlling an operation of a touch free faucet, the system comprising: a first touch free sensor configured to detect a first object below a spout of the touch free faucet; a second touch free sensor configured to detect a second object near a top portion of the touch free faucet; and a controller configured to: maintain a first flow of water until the first object leaves a zone of the first touch free sensor; turn on a second flow of water in a continuous mode based on the detection of the second object; determine that the first object and the second object are detected simultaneously for a first time period; and disable the first touch free sensor based on the determination that the first object and the second object were detected simultaneously for the first time period.

3. The system of claim 2, wherein at least some of the operations of the touch free faucet are controlled manually.

4. The system of claim 2, wherein a flow rate of the first flow of water is predetermined.

5. The system of claim 2, wherein the first object and the second object comprise a hand of a user.

6. The system of claim 2, wherein the first object comprises one hand of a user and the second object comprises another hand of the user.

7. The system of claim 2, wherein the controller is further configured to turn off the second flow of water in the continuous mode when the second flow of water is flowing in the continuous mode and further based on the detection of the second object.

8. The system of claim 2, wherein the controller is further configured to turn off the second flow of water in the continuous mode after a determination that the second flow of water has been flowing in the continuous mode for a second time period.

9. The system of claim 2, wherein the controller is further configured to enable the first touch free sensor when the first touch free sensor is disabled and further based on a determination that the first object and the second object were detected simultaneously for a third period.

10. A method for controlling an operation of a touch free faucet, the method comprising: maintaining a first flow of water until the first object leaves the first zone of the first touch free sensor based on a detection of a first object in a first zone of a first touch free sensor; turning on a second flow of water in a continuous mode based on the detection of the second object based on a detection of a second object in a second zone of a second touch free sensor; and disabling the first touch free sensor based on a determination that the first object and the second object were detected simultaneously for a first time period.

11. The method of claim 10, wherein at least some of the operations of the touch free faucet are controlled manually.

12. The method of claim 10, wherein a flow rate of the first flow of water is predetermined.

13. The method of claim 10, wherein the first object and the second object comprise a hand of a user.

14. The method of claim 10, wherein the first object comprises one hand of a user and the second object comprises another hand of the user.

15. The method of claim 10, further comprising turning off the second flow of water in the continuous mode when the second flow of water is flowing in the continuous mode and further based on the detection of the second object.

16. The method of claim 10, further comprising turning off the second flow of water in the continuous mode when the second flow of water is flowing in the continuous mode for a second time period.

17. The method of claim 10, further comprising enabling the first touch free sensor when the first touch free sensor is disabled and further based on a determination that the first object and the second object were detected simultaneously for a third period.

18. The method of claim 10, wherein a temperature of the first flow of water is user selectable.

19. A system for controlling an operation of a touch free faucet, the touch free sensor comprising a first touch free sensor, the system comprising a controller configured to: turn on a first flow of water in a continuous mode based on a detection of a first object by the first touch free sensor for a first time period; and disable a first touch free sensor based on the detection of a second object for a second time period greater than the first time period.

20. The system of claim 19, further comprising a second touch free sensor, and wherein the controller is further configured to disable the second touch free sensor based on the detection of the second object for the second time period greater than the first time period.

21. The system of claim 19, wherein a temperature of the first flow of water is user selectable.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0035] The above mentioned and other features and objects of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:

[0036] FIG. 1 is a block diagram illustrating embodiments of the touch-free automatic faucet system in this invention;

[0037] FIG. 2 is a diagram illustrating embodiments of the function of touch-free automatic faucet system in this invention;

[0038] FIG. 3 is a flow diagram illustrating embodiments of the control logic of the system and method of this invention;

[0039] FIG. 4 is a logic flow diagram illustrating embodiments of the control logic of the system and method of this invention;

[0040] FIG. 5 and FIG. 6 illustrating embodiments of the electronic sensors on both sides of embodiment of this invention;

[0041] FIG. 7, FIG. 8 and FIG. 9 illustrating embodiments of different arrangements of electronic sensors of this invention;

[0042] FIG. 10, FIG. 11 and FIG. 12 illustrating embodiments of different arrangements of water flow control valve assembly and temperature control valve assembly of this invention.

DETAILED DESCRIPTION

[0043] For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the preferred embodiment and specific language will be used to describe the same. The drawings depict illustrative embodiments that are not intended to limit or restrict the scope of the invention.

[0044] An illustrative embodiment of the present invention provides a lavatory-kitchen-type faucet that can be fully functioned for all operational needs. In order to provide water-efficient operation that is easy and convenient to use, the water is activated and deactivated in response to a primary electronic sensor that detects an object presence under the spout, so as to provide the most water-efficient operation in Primary-Water-Flow-Mode. For other applications, such as filling the sink, container or washing dishes, food etc. continuous water flow is needed. The invented faucet can be switched in/out a Continue-Water-Flow-Mode without touching any parts of faucet body. Hence the personal hygiene is protected. In addition, in the uniquely designed Faucet-Pause-Mode the user can work in the vicinity of the faucet without water running. Furthermore, the two pairs of sensors are functioned in Adjust-Water-Flow-Mode and Temperature-Control-Mode to adjust water flow and temperature. Another unique Flow-Temperature-Default-Setting-Mode function provides a default water flow setting and a default water temperature setting to prevent users accidently injured by sudden hot water flow from previous usage and also to keep faucet water flow at a minimum requirement for water conservation.

[0045] The following figures and drawings description of embodiments of the invention illustrating the above mentioned functions of this invention.

[0046] FIG. 1 is a block diagram of an illustrative touch free automatic faucet according to the present invention. The illustrative touch-free automatic faucet system (100) is shown coupled to a cold water source (104), a hot water source (105) and an outlet mixed water flow to faucet (106). The system (100) includes one primary electronic sensor (111), a pair of secondary electronic sensor assembly (112 and 113), a pair of tertiary electronic sensor assembly (114 and 115), an electrical power supply package (121), a logic processor circuit board (122), a water flow control assembly (123) and temperature control system assembly (124). The sensing signals (141, 142, 143, 144 and 145) from primary electronic sensor C (111), the pair of secondary electronic sensors A & B (112, 113) and the pair of tertiary electronic sensors D & E (114, 115) input to logic processor circuit board (122). The outputs of logic processor (301 and 302) control the water flow control assembly (123) and temperature control system assembly (124). The electricity power supply package (121) supplies electrical power (148) to logic process circuit board (122) and hence the whole system.

[0047] FIG. 2 is a diagram illustrating embodiments of the functions of touch-free automatic faucet system in this invention.

[0048] The function of primary sensor C (111) is to activate Primary-Water-Flow-Mode when water needed in the sink area (108) for washing hands or foods, and etc.

[0049] The pair of secondary sensors (Sensor A) (112) and (Sensor B) (113) serves for three functions:

[0050] 1. The combination functions of secondary sensors (Sensor A and Sensor B) (112 and 113) activate/deactivate a Continue-Water-Flow-Mode to filling sink, container or to wash dishes, food, and etc.

[0051] 2. In the Primary-Water-Flow-Mode or Continue-Water-Flow-Mode, water flowing from the faucet; the pair of secondary sensors (Sensor A and Sensor B) (112 and 113) are functioned to adjust water temperature (Temperature-Control-Mode).

[0052] 3. The primary sensor (Sensor C) (111) is in deactivation condition, activation of Sensor A (112) triggers a Faucet-Pause-Mode to pause function of Sensor C (111) for the user to work in the vicinity of faucet without water flowing.

[0053] The pair of tertiary sensors (Sensor D, Sensor E) (114) (115) control the water flow of faucet (Adjust-Water-Flow-Mode).

[0054] The pair of secondary sensors (Sensor A, Sensor B) (112) (113) and The pair of tertiary sensors (Sensor D, Sensor E) (114) (115) control the default setting of water flow and temperature of faucet (Flow-Temperature-Default-Setting-Mode).

[0055] FIG. 3 is an illustrative embodiment lavatory-kitchen-type faucet according to the present invention. The illustrative touch-free automatic faucet system (100) is shown with a mixed water flow (106) to the faucet spout (101). Faucet spout (101) comprises one primary electronic sensor (111), a LED indicator (118), a pair of secondary electronic sensors (112 and 113) and a pair of tertiary electronic sensors (114 and 115) which are mounted on the faucet body (101). Each of these electronic sensors (111, 112, 113, 114 and 115) includes a set of infrared transmitter and receiver to detect the presence of object and a LED indicator (118) for system information indication. The primary sensor C (111) senses the sink area (108) for Primary-Water-Flow-Mode operation. The pair of secondary sensors A & B (112 and 113) and the pair of tertiary electronic sensors (114 and 115) are functioned to control Continue-Water-Flow-Mode, Temperature-Control-Mode, Faucet-Pause-Mod and Adjust-Water-Flow-Mode of the faucet (101). The faucet system (100) also includes an electricity power supply package (121) to supply the needed electrical power (148) to the control system, a logic processor circuit board (122) with preload logic program to control the faucet system (100), a water flow control valve assembly (123) and a temperature control valve assembly (124) to control water flow (301) and temperature (302).

[0056] FIG. 4 is a logic diagram shows the logic procedures and method of the system using electronic sensor (infrared sensor) detecting devices, logic processor, water flow control valves for water flow and temperature control to enable touch free and automatic of faucet in the present invention.

[0057] An object in presence within the primary sensor (Sensor C) (111) detection zone (171) (for example, in a sink) activates (141) primary sensor (Sensor C) (111) and hence the logic processor (122) activates (301) the flow control valve assembly (Valve A) (123) for water flow to the faucet spout (101) (activation of Primary-Water-Flow-Mode) (201).

[0058] In the activation of Primary-Water-Flow-Mode (201) operation, water flow control valve assembly (Valve A) (123) is in activated position for water flow, whereas the primary sensor (Sensor C) (111) detects (141) no object in presence within the detection zone (171) (for example, in a sink), the logic processor (122) deactivates (301) the water flow control valve assembly (Valve A) (123) to stop water flow to the faucet spout (101) (deactivation of Primary-Water-Flow-Mode) (201).

[0059] At any time, both of the secondary sensors (Sensor A and Sensor B) (112 and 113) sense the presence of an object (for example, a hand) within the detection zone for a time period (Time Continue-flow-on) (142 and 143), the logic processor (122) activates (301) the water flow control valve assembly (Valve A) (123) for a continuous water flow (252) (Continue-Water-Flow-Mode) (202) to faucet spout (101). This Continuous-Water-Flow-Mode (202) operation is convenient for users to filling sink or container without keeping their hands within the detection zone (108) of the primary sensor (Sensor C) (111) (activation of Continue-Water-Flow-Mode) (202).

[0060] Furthermore, in FIG. 4 detail [109] (Primary-Water-Flow-Mode) (201), FIG. 4 detail [111] (Continue-Water-Flow-Mode) (202), wherein said water flow control valve assembly (Valve A) (123) is in activated position for water flow (301) to faucet spout (101). Sensor A (112) of the secondary sensors detects (142) the presence of object (for example, a finger) within the detection zone (172), the logic processor (122) increases the faucet water flow temperature by increasing hot water flow (105) and decreasing cold water flow (104) of the temperature control valve assembly (Valve B) (124) accordingly depending on the sensing time period of sensor (Sensor A) (112); whereas, Sensor B (113) of the pair of secondary sensors detects (173) the presence of object (for example, a finger) within the detection zone (143), the logic processor (122) decreases the faucet water flow temperature by decreasing hot water flow (105) and increasing cold water flow (104) of the temperature control valves assembly (Valve B) (124) accordingly depending on the sensing time period of sensor (Sensor B) (113). Faucet water flow temperature hence is controlled by the function of the pair of secondary sensors (Sensor A and Sensor B) (112 and 113) without touching any parts of faucet body (101) (Temperature-Control-Mode) (203 and 204).

[0061] Furthermore, in FIG. 4 detail [109] (Primary-Water-Flow-Mode) (201), FIG. 4 detail [111] (Continue-Water-Flow-Mode) (202), the water flow control valve assembly (Valve A) (123) is in activated position for water flow (301) to faucet spout (106). Sensor D (114) of the tertiary sensors senses (144) the presence of object (for example, a finger) within the detection zone (174), the logic processor (122) increases the water flow (260) to faucet spout (101) by increasing both hot and cold water flow of the water flow control valve assembly (Valve A) (123) accordingly depending on the sensing time period of Sensor D (144); whereas Sensor E (145) of the tertiary sensors senses (145) the presence of object (for example, a finger) within the detection zone (175), the logic processor (122) decreases the water flow (261) to faucet spout (101) by decreasing both of hot and cold water flow of the water flow control valves assembly (Valve A) (123) accordingly depending on the sensing time period of Sensor E (145); faucet water flow hence is adjusted by the function of the pair of tertiary sensors (Sensor D and Sensor E) (114 and 115) without touching any parts of faucet (101) (Adjust-Water-Flow-Mode) (206 and 207).

[0062] Furthermore, the faucet is in Continue-Water-Flow-Mode (202), water flow control valve assembly (Valve A) (123) is activated for water flow (301) to faucet spout (106). Both of the secondary sensors (Sensor A and Sensor B) (112 and 113) sense the presence of object (for example, a hand) within the detection zone (142 and 143) for a time period (Time Continue-flow-off), the logic processor (122) deactivates (301) the water flow control valve assembly (Valve B) (123) to stop continuous water flow (252) (Continue-Water-Flow-Mode) (202) (deactivation of Continue-Water-Flow-Mode) (202).

[0063] Wherein the faucet (100) is in stand-by condition, said primary sensor (Sensor C) (111) senses no object presence within the detection zone (255) and the flow control valve assembly (Valve A) (123) is in deactivation condition (301), no water flow from faucet spout (256); detection (142) of an object (for example, a hand or finger) within the detection zone of Sensor A (112) of the secondary sensors for a time period (Time Sc-pause) triggers the logic processor (122) to pause (257) the function of primary sensor (Sensor C) (111) referred as Faucet-Pause-Mode (205); at Faucet-Pause-Mode, a user can work within the primary sensor detection zone without activating faucet water flow for water conservation (beginning of Faucet-Pause-Mode).

[0064] In the Faucet-Pause-Mode (205), wherein said primary sensor (Sensor C) (111) is paused (257); Sensor A (112) of the secondary sensors detects (142) an object (for example, a hand or finger) within the detection zone for a time period (Time Sc-reset) triggers the logic processor to reset (257) the function of primary sensor (Sensor C) (111); the faucet system (100) is back to stand-by condition (reset of Faucet-Pause-Mode) (205).

[0065] The default settings of water flow (209) and temperature (208) are programmed in logic processor (122) through the combination function of the paired secondary sensors (Sensor A, 112 and Sensor B, 113) and the paired tertiary sensors (Sensor D, 114 and Sensor E, 115). The unique Default flow (263) and Temperature (262) Reset function hence prevent a user accidently injured by sudden hot water flow from previous usage and keep faucet water flow at a minimum requirement for water conservation.

[0066] Wherein said water flow control valve assembly (123) and water temperature control valve assembly (124) having a cold fluid inlet (104), a hot fluid inlet (105) and one fluid outlet (106) conduits, combining with one or more of electric solenoid valves and electric motorized gear valves therefrom to control water flow (106) to the faucet spout.

[0067] Wherein said primary sensor (Sensor C) (111), the pair of secondary sensors (Sensor A and Sensor B) (112, 113) and the pair of tertiary sensors (Sensor D and Sensor E) (114, 115) are hence functioned to fully control the water flow (301) and water temperature (302) of touch free automatic faucet for commercial and residential applications.

[0068] FIG. 5 and FIG. 6 illustrating embodiments of faucet, the sensing beam of the primary sensor C (111) directed to the front side of the faucet (101), the pair of secondary sensors (112 and 113) and the pair of tertiary sensors (114 and 115) are mounted on different sides of faucet body at about 90 degree angle from the primary sensor (Sensor C) (111) to prevent interference.

[0069] FIG. 7 and FIG. 8 illustrating embodiments of different arrangements of electronic sensors in this invention; The primary sensor (Sensor C) (111) can be installed on the outlet of faucet spout (101) for better detection.

[0070] FIG. 9 illustrating embodiments of different arrangements of electronic sensors of this invention; the separate faucet sensor compartment (127) design feature provides easy-access of kitchen-lavatory applications, especially for children, handicapped and elder users etc.

[0071] FIG. 10 illustrating embodiments of water flow control valve assembly (123) and temperature control valve assembly (124) in this invention. The flow control valve assembly (123) comprises a solenoid valve (181) and a motorized gear valve (182). The solenoid valve (181) receives signal (301) from logic processor to toggle on/off the valve (181) to start/stop water flow (106) to faucet spout (101). The motorized gear valve (182) adjusts the water flow (106) according to the signal input (301). The temperature control valve assembly (124) comprises a three-way motorized gear valve (183) to adjust cold/hot water flow ratio from cold water inlet (104) and hot water inlet (105) according to the input signal (302) from the output of logic processor (122).

[0072] FIG. 11 illustrating another embodiments of water flow control valve assembly (123) and temperature control valve assembly (124) in this invention. The flow/temperature control valve assembly (123 and 124) comprises a solenoid valve (181) and two motorized gear valves (184 and 185). The solenoid valve (181) receives signal (301) from logic processor to toggle on/off the valve (181) to start/stop water flow to faucet spout. The water flow/temperature control valve assembly (123 and 124) comprises two two-way motorized gear valves (184 and 185) to adjust cold/hot water flow ratio from cold water inlet (104) and hot water inlet (105) according to the input signal (301 and 302) from the output of logic processor (122).

[0073] FIG. 12 illustrating another embodiments of water flow control valve assembly (123) and temperature control valve assembly (124) in this invention. The flow/temperature control valve assembly (123 and 124) comprises two two-way motorized gear valves (186 and 187) to toggle on/off and to adjust cold/hot water flow ratio from cold water inlet (104) and hot water inlet (105) according to the input signal (301 and 302) from the output of logic processor (122).

INDUSTRIAL APPLICABILITY

[0074] The invention provides a touch-free automatic faucet with three or more sensors to control water flow and temperature for commercial and residential applications for easy-convenient operation, water conservation and personal hygiene protection.

[0075] 1. A system and method of touch free automatic faucet comprising: a primary sensor (in this case, Infrared sensor, Sensor C), a pair of secondary sensors (in this case, Infrared sensors, Sensor A and Sensor B), a pair of tertiary sensors (in this case, Infrared sensors, Sensor D and Sensor E), an electricity power supply package, a logical processor (in this case, Micro Chip) circuit board, a logic program loaded in the processor, a water flow control valve assembly, a temperature control valve assembly, at least one faucet body housing and at least one inlet fluid line.

[0076] 2. The touch free automatic faucet of claim 1, wherein the primary sensor (Sensor C), the pair of secondary sensors (Sensor A and Sensor B), a pair of tertiary sensors (Sensor D and Sensor E), each sensor includes a set of transmitter and receiver mounted on the faucet body or the faucet assembly therein detecting the presence of objects near the automatic faucet.

[0077] 3. The touch free automatic faucet of claim 1, wherein said function of water flow and temperature control of faucet by primary electronic sensor (Sensor C), the pair of secondary electronic sensors (Sensor A and Sensor B) and the pair of tertiary electronic sensors (Sensor D and Sensor E) provide a convenient, efficient and easy-operational mode whereas additional electronic sensors may be added to perform the same function also included in this claim.

[0078] 4. The touch free automatic faucet of claim 1, wherein said water flow control valve assembly having inlet and outlet conduits extending therefrom; said water flow control valve assembly having one or more solenoid activated valve with solenoid actuator or motorized gear driven valves to control water flow to faucet.

[0079] 5. The touch free automatic faucet of claim 1, wherein said temperature control valve assembly having one or more of motorized gear driven valves; wherein said temperature control valve assembly having two fluid inlet and one fluid outlet conduits extending therefrom to control water flow temperature to the faucet.

[0080] 6. The touch free automatic faucet of claim 1, wherein said primary sensor (Sensor C) senses the presence of an object within the detection zone, the logic processor responds output signal to activate the water flow control valve assembly (Valve A) to start water flow to faucet (activation of Primary-Water-Flow-Mode) at preset temperature (Temp Default).

[0081] 7. The touch free automatic faucet of claim 1, wherein said faucet is in Primary-Water-Flow-Mode, water flow control valve assembly (Valve A) is in activated position, primary sensor (Sensor C) senses no object presented within the detection zone, the logic processor responds output signal to deactivate the water flow control valve (Valve A) to stop water flow to the faucet spout (deactivation of Primary-Water-Flow-Mode) and to reset the temperature control valves back to default temperature setting (Temp Default).

[0082] 8. The touch free automatic faucet of claim 1, wherein both secondary sensors (Sensor A and Sensor B) sense the presence of an object (for example, a hand) for a time period (Time Continue-on), the signals from both sensors thus trigger the logic processor to respond an output signal to activate the water flow control valve assembly (Valve A) to begin a continuous water flow (activation of Continue-Water-Flow-Mode) to faucet spout at default temperature (Temp Default).

[0083] 9. The touch free automatic faucet of claim 6 (Primary-Water-Flow-Mode) or claim 8 (Continue-Water-Flow-Mode), wherein said water flow control valve assembly (Valve A) is in activated position whereas water flows to faucet spout, said Sensor A of the secondary sensors senses the presence of object (for example, a finger) within the detection zone, the logic processor increases the faucet water flow temperature by increasing hot water flow and decreasing cold water flow of the temperature control valve assembly (Valve B) accordingly depending on the sensing time period of Sensor A; whereas Sensor B of the secondary sensors senses the presence of object (for example, a finger) within the detection zone, the logic processor decreases the faucet water flow temperature by decreasing hot water flow and increasing cold water flow of the temperature control valves assembly (Valve B) accordingly depending on the sensing time period of Sensor B; faucet water flow temperature hence is controlled by the function of the pair of secondary sensors (Sensor A and Sensor B) without touching any parts of faucet (Temperature-Control-Mode).

[0084] 10. The touch free automatic faucet of claim 6 (Primary-Water-Flow-Mode) and claim 8 (Continue-Water-Flow-Mode), wherein said water flow control valve assembly (Valve A) is in activated position for water flow, said Sensor D of the tertiary sensors senses the presence of object (for example, a finger) within the detection zone, the logic processor increases the water flow to faucet spout by increasing both hot and cold water flow of the water flow control valve assembly (Valve A) accordingly depending on the sensing time period of Sensor D; whereas Sensor E of the tertiary sensors senses the presence of object (for example, a finger) within the detection zone, the logic processor decreases the water flow to faucet spout by decreasing both of hot and cold water flow of the water flow control valves assembly (Valve A) accordingly depending on the sensing time period of Sensor E; faucet water flow hence is adjusted by the function of the pair of tertiary sensors (Sensor D and Sensor E) without touching any parts of faucet (Adjust-Water-Flow-Mode).

[0085] 11. The touch free automatic faucet of claim 1 and claim 8 (Continue-Water-Flow-Mode), wherein said water flow control valve assembly (Valve A) is in activated position whereas faucet water flows continuously (activation of Continue-Water-Flow-Mode), said both of the corresponding secondary sensors (Sensor A and Sensor B) sense the presence of object (for example, a hand or a finger) within the detection zone for a time period (Time Continue-off), the logic processor responds output signal to deactivate the flow control valve assembly (Valve A) to stop water flow to the faucet spout; this claim includes a continuous water flow controlling function (deactivation of Continue-Water-Flow-Mode) by two combination of sensors (in this case, Sensor A and Sensor B of the secondary sensors) herein.

[0086] 12. A logic function (in this case, activation or deactivation of Continue-Water-Flow-Mode) is triggered by a combination of function of two sensors (in this case, Sensor A and Sensor B of the secondary sensors) is claimed.

[0087] 13. The touch free automatic faucet of claim 1, wherein the faucet is in stand-by condition, said primary sensor (Sensor C) senses no object presence within the detection zone and the flow control valve assembly (Valve A) is in deactivation condition, no water flow from faucet spout; detection of an object (for example, a hand or finger) within the detection zone of Sensor A of the secondary sensors for a time period (Time Sc-pause) triggers the logic processor to pause the function of primary sensor (Sensor C) referred as Faucet-Pause-Mode; at Faucet-Pause-Mode, a user can work within the primary sensor detection zone without activating faucet water flow for water conservation (beginning of Faucet-Pause-Mode).

[0088] 14. The touch free automatic faucet of claim 1 and claim 13 (Faucet-Pause-Mode), wherein said primary sensor (Sensor C) is paused; Sensor A of the secondary sensors detects an object (for example, a hand or finger) within the detection zone for a time period (Time Sc-reset) triggers the logic processor to reset the function of primary sensor (Sensor C); the faucet system is back to stand-by condition (reset of Faucet-Pause-Mode).

[0089] 15. The touch free automatic faucet of claim 13 (beginning of Faucet-Pause-Mode) and claim 14 (reset of Faucet-Pause-Mode), wherein a sensor (in this case, to pause and to reset of primary Sensor C) is controlled by another sensor (in this case, Sensor A of the secondary sensors) is claimed.

[0090] 16. The touch free automatic faucet of claim 8 (activation of Continue-Water-Flow-Mode) and claim 11 (deactivation of Continue-Water-Flow-Mode); claim 9 (Temperature-Control-Mode); claim 13 (beginning of Faucet-Pause-Mode) and claim 14 (reset of Faucet-Pause-Mode); wherein said the function of controlling a continuous water flow (Continue-Water-Flow-Mode), water temperature (Temperature-Control-Mode), and function of pause-reset sensor (Faucet-Pause-Mode) by a pair of electronic sensors (In this case, Sensor A and Sensor B of the secondary sensors) thus claimed in this invention.

[0091] 17. The default settings of water flow and temperature are programmed in logic processor through the combination function of the paired secondary sensors (Sensor A and Sensor B) and the paired tertiary sensors (Sensor D and Sensor E) (Flow-Temperature-Default-Setting-Mode).

[0092] 18. The touch free automatic faucet of claim 1, wherein said logic processor circuit board comprises a logic processor (Micro Chip), a reset switch and a circuit board; the logic processor is programmed to function all the inputs and outputs of the five electronic sensors (Sensor A, Sensor B, Sensor C, Sensor D and Sensor E), the water flow control valve assembly (Valve A) and the temperature control valves assembly (Valve B); and a reset switch to reset the system to stand-by condition.

[0093] 19. The touch free automatic faucet of claim 1, wherein said an electricity power supply package includes a battery pack and an alternating current to direct current transformer to supply direct current to the logic processor circuit board and the whole system operation.