Sensing and analysis system, network, and method

• US 7,483,805 B2
• Filed: 03/20/2007
• Issued: 01/27/2009
• Est. Priority Date: 12/26/2006
• Status: Active Grant

• Current Assignee: Integrated Sensing Systems Incorporated
• Original Assignee: Integrated Sensing Systems Incorporated
• Inventors: Najafi, Nader, Sparks, Douglas Ray, Cruz, Vincent
• Primary Examiner(s): Raymond; Edward
• Application Number:
  US11/688,399
• Publication Number:
  US 20080154535A1
• Time in Patent Office: 679 Days
• Field of Search: 702/130, 702/23, 702182-185, 702/188, 436/147, 374/100, 324/464, 324/465, 324/514
• US Class Current: 702/130
• CPC Class Codes: G05B 19/0425 Safety, monitoring

Abstract

A sensing and analysis system, method, and network that make use of a very portable and compact sensor unit and a physically separate electronic unit that serves to power and control the sensor unit, process and optionally display the output of the sensor unit, and transmit the sensor output to other locations, such as over a network. The sensor unit includes a housing, a sensing element within the housing and responsive to an input, and electronic circuitry within the housing and in communication with the sensing element to produce an electrical output based on an output signal generated by the sensing element. A communication providing device delivers instructions generated by the electronic unit to the sensor unit and delivers the electrical output from the sensor unit to the electronic unit.

Claims

1. A sensing and analysis system comprising:

a portable sensor unit comprising a housing, a sensing element within the housing and operable to sense an input and generate an output signal responsive to the input, and electronic circuitry within the housing and in communication with the sensing element;

an electronic unit physically separable from the sensor unit and providing power to the sensor unit for operation of the sensing element and the electronic circuitry, generating instructions for controlling the electronic circuitry to initiate, modify, and terminate the operation of the sensor unit, receiving the electrical output from the sensor unit, processing the electrical output, and transmitting the electrical output to remote locations;

means for providing communication between the electronic circuitry and the electronic unit by which the instructions generated by the electronic unit are delivered to the sensor unit and the electrical output from the sensor unit is delivered to the electronic unit; and

means for delivering power from the electronic unit to the sensor unit;

wherein the electronic circuitry performs tasks limited to communicating the instructions from the electronic unit to the sensor unit, producing an electrical output based on the output signal generated by the sensing element, and optionally amplifying, sorting and filtering the output signal to produce the electrical output; and

wherein the communication providing means and the power delivering means are configured for selectively connecting and disconnecting the sensor unit and the electronic unit to initiate and terminate communication with and powering of the sensor unit.

2. The sensing and analysis system according to claim 1, wherein the communication providing means comprises a cable over which the electrical output of the electronic circuitry is delivered to the electronic unit, and the instructions from the electronic unit are delivered to the sensor unit.

3. The sensing and analysis system according to claim 1, wherein the communication providing means comprises a serial interface device operable to deliver the electrical output of the electronic circuitry to the electronic unit, and deliver the instructions from the electronic unit to the sensor unit.

4. The sensing and analysis system according to claim 1, wherein the communication providing means and the power delivering means comprise at least one universal serial bus connector operable to deliver the electrical output of the electronic circuitry to the electronic unit, deliver the instructions from the electronic unit to the sensor unit, and deliver power from the electronic unit to the sensor unit.

5. The sensing and analysis system according to claim 4, wherein the universal serial bus connector further comprises a cable.

6. The sensing and analysis system according to claim 1, wherein the communication providing means comprises means for wirelessly sending the electrical output of the electronic circuitry to the electronic unit, and means for wirelessly sending the instructions from the electronic unit to the sensor unit.

7. The sensing and analysis system according to claim 1, wherein the electronic unit comprises a communication port configured to receive and physically couple with the communication providing means of the sensor unit.

8. The sensing and analysis system according to claim 1, wherein the electronic unit comprises means for manipulating the electrical output of the sensor unit.

9. The sensing and analysis system according to claim 1, wherein the electronic unit comprises means for displaying the manipulated electrical output of the sensor unit.

10. The sensing and analysis system according to claim 1, wherein the electronic unit comprises user interface means for generating the instructions for the sensor unit.

11. The sensing and analysis system according to claim 1, wherein the electronic unit comprises means for calibrating the sensor unit.

12. The sensing and analysis system according to claim 1, wherein the electronic unit comprises memory storage means that stores an algorithm for controlling the sensor unit.

13. The sensing and analysis system according to claim 1, wherein the sensor unit comprises memory storage means that stores an algorithm for controlling the sensor unit.

14. The sensing and analysis system according to claim 13, wherein the sensor unit comprises means for uploading the algorithm from the memory storage means to the electronic unit.

15. The sensing and analysis system according to claim 1, wherein each of the electronic unit and the sensor unit comprises memory storage means that stores algorithms for controlling the sensor unit.

16. The sensing and analysis system according to claim 1, wherein the sensor unit does not contain a power source within the housing for powering the sensor unit and the electronic unit supplies all of the power required by the sensor unit.

17. The sensing and analysis system according to claim 1, wherein the sensor unit comprises a battery within the housing for powering the sensing element and the electronic circuitry.

18. The sensing and analysis system according to claim 1, wherein the electronic unit is selected from the group consisting of personal computers, workstations, computers, laptops, PDA'"'"'s, radios, cellular phones, and satellite phones, and the electronic unit is within a network that enables network communications therewith.

19. The sensing and analysis system according to claim 18, wherein the sensor unit does not contain within the housing means for network communication other than through the electronic unit.

20. The sensing and analysis system according to claim 18, wherein the network further comprises a plurality of sensor units as recited in claim 1 and a plurality of electronic units as recited in claim 1, each of the plurality of sensor units communicating with at least one of the plurality of electronic units so that instructions generated by the plurality of electronic units are delivered to the plurality of sensor units and the electrical outputs from the plurality of sensor units are delivered to the plurality of electronic units, and the network enables communication between the plurality of electronic units.

21. The sensing and analysis system according to claim 20, wherein the network comprises means for linking the plurality of electronic units for communication therebetween within the network, the linking means being selected from the group consisting of cellular towers, land lines, telephone lines, cable lines, satellites, local wireless laptop antennas, network servers, and radios.

22. The sensing and analysis system according to claim 1, wherein the sensing element is selected from the group consisting of microfluidic sensors and receivers, MEMS sensors and receivers, optical sensors and receivers, infrared sensors and receivers, electrical capacitive sensors, resistive sensors, piezoresistive sensors, piezoelectric sensors, chemical sensors, metal oxide electrode sensors, and metal electrode sensors, resonators, resonating tubes, SAW sensors, beam/paddle sensors, turbine sensors, pressure sensors, differential pressure sensors, acoustic sensors, speed of sound sensors, refractive index sensors, gas chromatography sensors, mass-based sensors, magnetic sensors, electromagnetic sensors, radiation sensors, attenuating and absorption devices, spectral devices, diffraction and diffraction grating-based chemical sensors, blood alcohol sensors, breath alcohol sensors, and residual gas analyzers.

23. The sensing and analysis system according to claim 1, wherein the sensor unit further comprises:

an inlet for receiving and delivering a material to the sensing element; and

an outlet for receiving the material from the sensing element and discharging the material from the housing;

wherein the input to which the sensing element is responsive is a characteristic of the material and the output signal generated by the sensing element corresponds to the characteristic of the material.

24. The sensing and analysis system according to claim 23, wherein the characteristic to which the sensing element is responsive is selected from the group consisting of chemical identity, chemical concentration, chemical composition, density, specific gravity, flow rate, viscosity, pH, conductivity, material quality, dissolved gases, pressure, temperature, refractive index, dielectric constant, speed of sound, spectra, infrared spectra, infrared absorption, fluorescence, optical absorption, and diffraction.

25. The sensing and analysis system according to claim 24, wherein the material is a fluid selected from the group consisting of air, water, chemicals, beverages, bodily fluids, blood, breath, urine, and saliva, the characteristic to which the sensing element is responsive is at least one selected from the group consisting of biohazards, explosives, environmental pollutants, radiation, chemical toxins, biological indicators, medical conditions, DNA, RNA, bodily fluids, chemicals, cells, spores, antigens, pathogens, and alcohol, and the sensor unit is operable to perform at least one operation selected from the group consisting of detecting, monitoring, amplifying, sorting, filtering, analyzing, and measuring the characteristic.

27. The sensing and analysis system according to claim 23, further comprising means for fluidically coupling a fluid source to the inlet of the sensor unit.

28. The sensing and analysis system according to claim 23, further comprising means for fluidically coupling a receptacle to the outlet of the sensor unit.

29. The sensing and analysis system according to claim 23 wherein the sensor unit further comprises means for pumping the material through the sensing element.

30. The sensing and analysis system according to claim 29, wherein the pumping means is integrated onto the sensor unit and powered by the electronic unit.

31. The sensing and analysis system according to claim 1, wherein the sensor unit is a gas chromatograph sensor.

32. The sensing and analysis system according to claim 1, wherein the sensor unit is a Geiger counter.

33. The sensing and analysis system according to claim 1, wherein the sensor unit is a blood or breath alcohol content sensor.

34. The sensing and analysis system according to claim 1, wherein the input to which the sensing element is responsive is selected from the group consisting of magnetic field, motion, acceleration, shock, vibration, temperature, pressure, mass, gravity, infrared detection, electromagnetic field, radiation, dielectric constant, refractive index, conductivity, resistivity, thermal properties, and optical properties.

35. The sensing and analysis system according to claim 1, wherein the sensor unit further comprises means for altering the temperature of the sensing element.

36. The sensing and analysis system according to claim 35, wherein the electronic unit comprises means for controlling the temperature altering means of the sensing element.

37. The sensing and analysis system according to claim 1, further comprising means for providing communication between the sensor unit and a second sensor unit having a sensing element responsive to a second input.

38. The sensing and analysis system according to claim 1, wherein the electronic unit comprises and the sensor unit does not contain within the housing thereof means for powering the sensor unit, means for manipulating the electrical output of the sensor unit, means for displaying the electrical output of the sensor unit, means for controlling the electrical output of the sensor unit, and memory storage means that stores an algorithm for controlling the sensor unit.

47. The sensing and analysis system according to claim 1, wherein the sensing element is a MEMS device.

48. The sensing and analysis system according to claim 1, wherein the sensor unit is a handheld unit capable of being physically supported by the electronic unit.

26. A sensing and analysis system comprising:

a portable sensor unit comprising a housing, a sensing element within the housing and responsive to an input, and electronic circuitry within the housing and in communication with the sensing element, the electronic circuitry producing an electrical output based on an output signal generated by the sensing element;

an electronic unit physically separate from the sensor unit and capable of generating instructions for the sensor unit, receiving the electrical output from the sensor unit, processing the electrical output, and transmitting the electrical output to remote locations;

means for providing communication between the electronic circuitry and the electronic unit by which instructions generated by the electronic unit are delivered to the sensor unit and the electrical output from the sensor unit is delivered to the electronic unit; and

means for delivering power from the electronic unit to the sensor unit;

wherein the sensor unit further comprises;

an inlet for receiving and delivering a material to the sensing element; and

an outlet for receiving the material from the sensing element and discharging the material from the housing;

and wherein the input to which the sensing element is responsive is a characteristic of the material, the output signal generated by the sensing element corresponds to the characteristic of the material, the material analyzed by the sensor unit is a fluid, and the sensing element comprises;

a freestanding tube through which the fluid flows;

means for vibrating the freestanding tube at a resonant frequency and gain thereof that varies with the density, chemical concentration and viscosity of the fluid flowing therethrough, the Coriolis effect causing the freestanding tube to twist to a degree that varies with the mass flow rate of the fluid flowing therethrough while the freestanding tube is vibrated at resonance; and

means for sensing movement of the freestanding tube to sense the resonant frequency and the degree of twist of the freestanding tube as the fluid flows therethrough.

39. A sensing and analysis method comprising:

providing a portable sensor unit and an electronic unit physically separable from the sensor unit, the portable sensor unit comprising a housing, a sensing element within the housing and operable to sense an input and generate an output signal responsive to the input, and electronic circuitry within the housing and in communication with the sensing element;

connecting the sensor unit to the electronic unit so as to provide a bidirectional communication capability and deliver power from the electronic unit to the sensor unit;

operating the electronic unit to deliver power from the electronic unit to the sensor unit for operation of the sensing element and the electronic circuitry, generate instructions to control the electronic circuitry to initiate, modify, and terminate the operation of the sensor unit, cause the electronic circuitry to perform tasks limited to communicating the instructions from the electronic unit to the sensor unit, produce an electrical output based on the output signal generated by the sensing element, and optionally amplify, sort and filter the output signal to produce the electrical output, receive and process the electrical output from the sensor unit, and transmit the electrical output and/or the processed electrical output to remote locations; and

then

physically disconnecting the sensor unit from the electronic unit to terminate communication with and powering of the sensor unit.

40. The sensing and analysis method according to claim 39, wherein the electronic unit is selected from the group consisting of personal computers, workstations, computers, laptops, PDA'"'"'s, cellular phones, and satellite phones.

41. The sensing and analysis method according to claim 39, wherein the electronic unit is within a network that enables network communications with the electronic unit, and the sensor unit does not contain within the housing thereof means for network communication other than through the electronic unit.

42. The sensing and analysis method according to claim 39, wherein the sensor unit does not contain within the housing thereof means for powering the sensor unit, means for manipulating the electrical output of the sensor unit, means for displaying the electrical output of the sensor unit, means for controlling the electrical output of the sensor unit, and memory storage means.

43. The sensing and analysis method according to claim 39, wherein the power is delivered to the sensor unit and the electrical output is communicated to the electronic unit via a universal serial bus connector on the sensor unit.

44. The sensing and analysis method according to claim 39, wherein the input is an environmental condition.

45. The sensing and analysis method according to claim 44, wherein the environmental condition is selected from the group consisting of biochemical agents, radiation, explosives, pathogens, pollutants, biohazards, chemical toxins, and weather conditions in the environment.

46. The sensing and analysis method according to claim 39, wherein the input is a physiological condition, biological substance, a property of a biological substance of a human, or a substance in a biological substance of a human.

49. The sensing and analysis method according to claim 39, wherein the sensing element is a MEMS device.

50. The sensing and analysis method according to claim 39, wherein the sensor unit is a handheld unit capable of being physically supported by the electronic unit.