PACKAGE, MADE OF BUILDING MATERIAL, FOR A PARAMETER MONITORING DEVICE, WITHIN A SOLID STRUCTURE, AND RELATIVE DEVICE

• US 20150135846A1
• Filed: 05/23/2013
• Published: 05/21/2015
• Est. Priority Date: 05/25/2012
• Status: Active Grant

• Current Assignee: STMicroelectronics SRL (STMicroelectronics NV)
• Original Assignee: STMicroelectronics SRL (STMicroelectronics NV)
• Inventors: Pagani, Alberto, Murari, Bruno, Ziglioli, Federico Giovanni, Ricotti, Giulio, Ronchi, Marco
• Granted Patent: US 9,791,303 B2
• Time in Patent Office: Days
• US Class Current: 73/777
• CPC Class Codes: B28B 23/0031 with product identification means, e.g. labels on test products or integrated circuit tags inside products RFID
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01K 17/00 Measuring quantity of heat measuring temperature by calorimetry G01K3/00 - G01K11/00; specially adapted for measuring thermal properties of materials, e.g. specific heat, heat of combustion G01N
• CPC Class Codes: G01L 1/18 using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
• CPC Class Codes: G01M 5/00 Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings G01M9/00 takes precedence
• CPC Class Codes: G01N 33/383 Concrete, cement

Abstract

A package for a device to be inserted into a solid structure may include a building material that includes particles of one of micrometric and sub-micrometric dimensions. The device may include an integrated detection module having at least one integrated sensor and the package arranged to coat at least one portion of the device including the integrated detection module. A method aspect includes a method of manufacturing the device. A system aspect is for monitoring parameters in a solid structure that includes the device.

Claims

1-25. -25. (canceled)

26. A package for a device configured to detect at least one local parameter in a solid structure comprising:

a housing comprising a plurality of cement particles and a plurality of silica particles joined together, said plurality of cement particles and said plurality of silica particles having a dimension less than or equal to a micrometric dimension.

27. The package according to claim 26, wherein said plurality of silica particles has a sub-micrometric dimension.

28. The package according to claim 26, wherein said package is isotropic on a millimetric scale.

29. The package according to claim 26 wherein said plurality of silica particles comprises microsilica particles.

30. The package according to claim 26, wherein the device comprises an integrated detection module;

wherein said housing has a recess therein configured to receive said integrated detection module therein; and

wherein said housing comprises a filling within the recess and configured to surround said integrated detection module.

31. The package according to claim 30, wherein said housing is configured to be rotated with respect to an axes system of the package to determine a predefined positioning of the integrated detection module to detect the at least one local parameter along a corresponding predefined direction relative to the predefined positioning.

32. A device for detecting at least one local parameter within a solid structure comprising:

an integrated detection module comprising at least one integrated sensor configured to detect the at least one parameter; and

a package configured to cover said integrated detection module;

said package comprising a plurality of cement particles and a plurality of silica particles joined together, said plurality of cement particles and said plurality of silica particles having a dimension less than or equal to a micrometric dimension.

33. The device according to claim 32, wherein said package has an internal surface in contact with said at least one integrated sensor, and has a external surface in contact with the solid structure, the internal and external surfaces defining a separation between said at least one integrated sensor and the solid structure and configured to allow the transfer of at least one detectable quantity related to the at least one local parameter to said at least one integrated sensor.

34. The device according to claim 32, wherein said at least one integrated sensor is configured to detect the at least one parameter selected from the group of pressure, temperature, and mechanical stress.

35. The device according to claim 34, wherein said integrated sensor comprises at least one temperature sensor configured to measure a temperature based upon variations in a mobility of silicon based upon temperature values at a plurality of different points of contact between the solid structure and said package.

36. The device according to claim 34, wherein said at least one integrated sensor comprises a pressure sensor comprising a crystalline material having at least one crystalline axis, said pressure sensor being configured to measure a pressure along the at least one crystalline axis based upon piezoressitivity of silicon based upon a pressure along the at least one crystalline axis and at plurality of different points of contact between the solid structure and said package.

37. The device according to claim 34, wherein said at least one integrated sensor comprises a mechanical stress sensor comprising a crystalline material having at least one crystalline axis, said mechanical stress sensor being configured to measure a mechanical stress along the at least one crystalline axis based upon piezoressitivity of silicon based upon a mechanical stress along the at least one crystalline axis and at plurality of different points of contact between the solid structure and said package.

38. The device according to claim 32, wherein said integrated detection module further comprises an integrated antenna coupled to said at least one integrated sensor to define a single integrated circuit (IC) chip;

and wherein said package surrounds said single IC chip.

39. The device according to claim 38, further comprising:

electromagnetic circuitry configured to communicate between said integrated antenna and a remote antenna, said integrated antenna, electromagnetic circuitry, and the remote antenna being configured to communicate via at least one of a magnetic and electromagnetic coupling; and

a support configured to provide support to said integrated detection module and said electromagnetic circuitry, and further configured to fix the device to a supporting structure passing through points to be monitored within the solid structure;

said package covering at least a portion of said support.

40. The device according to claim 39, wherein said electromagnetic circuitry comprises:

a first antenna configured to communicate with said integrated antenna via a magnetic coupling for near-field electromagnetic communication;

a second antenna configured to communicate with the remote antenna via a far-field electromagnetic communication; and

connection circuitry configured to connect said first antenna and said second antenna;

said package covering a portion of the support including said first antenna.

41. The device according to claim 40, wherein said first antenna and said second antenna are configured to be inclined to each other at an angle between 0°

and 180°

.

42. The device according to claim 40, wherein said connection circuitry further comprise:

a third antenna and a first transmission line coupled thereto, said first transmission line connected to said first antenna; and

a fourth antenna and a second transmission line coupled thereto, said second transmission line connected to said second antenna, and said second and fourth antennas and said second transmission line defining an electromagnetic expansion and concentration unit;

said third antenna and said fourth antenna being configured to communicate via a magnetic coupling for near-field electromagnetic communication;

said first antenna and said third antenna being inclined to each other at an angle between 0° and

180°

;

said second antenna and said fourth antenna being inclined to each other at an angle between 0° and

180°

;

said package covering a portion of the support including said at least one electromagnetic expansion and concentration unit.

43. The device according to claim 42, wherein said connection circuitry comprises at least one further electromagnetic expansion and concentration unit between said third antenna and said fourth antenna, said at least one further electromagnetic expansion and concentration unit comprising a fifth antenna and a sixth antenna coupled to said fifth antenna and configured to communicate, via a magnetic coupling for near-field electromagnetic communication, respectively, with one of the fourth and second antennas of said electromagnetic expansion and concentration unit arranged in cascade upstream from said at least one further electromagnetic expansion and concentration unit, and an antenna of another electromagnetic expansion and concentration unit arranged in cascade downstream from said at least one further electromagnetic expansion and concentration unit;

said fifth antenna and said sixth antenna being inclined to each other at any angle between 0° and

180°

, based upon an inclination of a corresponding antenna connected via a wireless coupling; and

said package covering a portion of said support including said at least one further electromagnetic expansion and concentration unit.

44. The device according to claim 39, further comprising at least one further integrated detection module carried within said support and comprising a further integrated antenna;

and wherein said electromagnetic circuitry comprises;

a first antenna comprising a coil configured to communicate with said integrated antenna of said integrated detection module via a magnetic coupling for near-field electromagnetic communication; and

at least one corresponding further first antenna comprising a further coil configured to communicate with said further integrated antenna via a magnetic coupling for near-field electromagnetic communication;

said coil and said further coil being mutually operatively coupled in one of cascade, in parallel, and in series;

said package covering a portion of said support including said further integrated detection module and said electromagnetic circuitry.

45. The device according to claim 39, wherein said package is configured to be insertable into a corresponding recess within the solid structure to be monitored.

46. The device according to claim 39, wherein said package is configured to be insertable into at least one of a nail and an expansion screw;

the at least one of the nail and the expansion screw being configured to be fixed into the solid structure to be monitored.

47. A system for monitoring at least one parameter in a plurality of points within a solid structure, the system comprising:

an internal monitoring subsystem carried within the solid structure; and

an external control and data collection subsystem remote from the solid structure;

said internal monitoring subsystem comprising

a supporting structure passing through the plurality of points, and

a plurality of monitoring devices coupled to the supporting structure and comprising

an integrated detection module comprising at least one integrated sensor configured to detect the at least one parameter, and

a package configured to cover said integrated detection module,

said package comprising a plurality of cement particles and a plurality of silica particles joined together, said plurality of cement particles and said plurality of silica particles having a dimension less than or equal to a micrometric dimension.

48. The system according to claim 47, wherein said at least one integrated sensor is configured to detect the at least one parameter selected from the group comprising pressure, temperature, and mechanical stress.

49. The system according to claim 48, wherein said at least one integrated sensor comprises at least one temperature sensor configured to measure a temperature based upon variations in a mobility of silicon based upon temperature values at a plurality of different points of contact between the solid structure and said package.

50. The system according to claim 48, wherein said at least one integrated sensor comprises a pressure sensor comprising a crystalline material having at least one crystalline axis, said pressure sensor being configured to measure a pressure along the at least one crystalline axis based upon piezoressitivity of silicon based upon a pressure along the at least one crystalline axis and at plurality of different points of contact between the solid structure and said package.

51. The system according to claim 48, wherein said at least one integrated sensor comprises a mechanical stress sensor comprising a crystalline material having at least one crystalline axis, said mechanical stress sensor being configured to measure a mechanical stress along the at least one crystalline axis based upon piezoressitivity of silicon based upon a mechanical stress along the at least one crystalline axis and at plurality of different points of contact between the solid structure and said package.

52. The system according to claim 47, wherein said integrated detection module further comprises an integrated antenna coupled to said integrated sensor to define a single integrated circuit (IC) chip;

and wherein said package completely surrounds said single IC chip.

53. The system according to claim 52, wherein each of said plurality of monitoring devices further comprises:

electromagnetic circuitry configured to communicate between said integrated antenna and a remote antenna, said integrated antenna, electromagnetic circuitry, and the remote antenna being configured to communicate via at least one of a magnetic and electromagnetic coupling; and

a support configured to provide support to said integrated detection module and said electromagnetic circuitry, and further configured to fix the device to a supporting structure passing through points to be monitored within the solid structure;

said package covering at least a portion of said support.

54. The system according to claim 53, wherein said electromagnetic circuitry comprises:

a first antenna configured to communicate with said integrated antenna via a magnetic coupling for near-field electromagnetic communication;

a second antenna configured to communicate with the remote antenna via a far-field electromagnetic communication; and

connection circuitry configured to connect said first antenna and said second antenna;

said package covering a portion of the support including said first antenna.

55. The system according to claim 54, wherein said first antenna and said second antenna are configured to be inclined to each other at an angle between 0°

and 180°

.

56. The system according to claim 54, wherein said connection circuitry further comprises:

a third antenna and a first transmission line coupled thereto, said first transmission line connected to said first antenna; and

a fourth antenna and a second transmission line coupled thereto, said second transmission line connected to said second antenna, and said second and fourth antennas and said second transmission line defining an electromagnetic expansion and concentration unit;

said third antenna and said fourth antenna being configured to communicate via a magnetic coupling for near-field electromagnetic communication;

said first antenna and said third antenna being inclined to each other at an angle between 0° and

180°

;

said second antenna and said fourth antenna being inclined to each other at an angle between 0° and

180°

;

said package covering a portion of the support including said at least one electromagnetic expansion and concentration unit.

57. The system according to claim 56, wherein said connection circuitry comprises at least one further electromagnetic expansion and concentration unit between said third antenna and said fourth antenna, said at least one further electromagnetic expansion and concentration unit comprising a fifth antenna and a sixth antenna coupled to said fifth antenna and configured to communicate, via a magnetic coupling for near-field electromagnetic communication, respectively, with one of the fourth and second antennas of said electromagnetic expansion and concentration unit arranged in cascade upstream from said at least one further electromagnetic expansion and concentration unit, and an antenna of another electromagnetic expansion and concentration unit arranged in cascade downstream from said at least one further electromagnetic expansion and concentration unit;

said fifth antenna and said sixth antenna being inclined to each other at any angle between 0° and

180°

, based upon an inclination of a corresponding antenna connected via a wireless coupling; and

said package covering a portion of said support including said at least one further electromagnetic expansion and concentration unit.

58. The system according to claim 54, wherein each of said plurality of monitoring devices further comprises at least one further integrated detection module carried within said support and comprising a further integrated antenna;

and wherein said electromagnetic circuitry comprises;

a first antenna comprising a coil configured to communicate with said integrated antenna of said integrated detection module via a magnetic coupling for near-field electromagnetic communication; and

at least one corresponding further first antenna comprising a further coil configured to communicate with said further integrated antenna via a magnetic coupling for near-field electromagnetic communication;

said coil and said further coil being mutually operatively coupled in one of cascade, in parallel, and in series;

said package covering a portion of said support entirely including said further integrated detection module and said electromagnetic circuitry.

59. The system according to claim 54, wherein said package is configured to be insertable into a corresponding recess within the solid structure to be monitored.

60. The system according to claim 54, wherein said package is configured to be insertable into at least one of a nail and an expansion screw;

the at least one of the nail and the expansion screw being configured to be fixed into the solid structure to be monitored.

61. A method of making a device for detecting at least one local parameter in a solid structure, the method comprising:

forming a housing using a building material comprising a plurality of cement particles and a plurality of silica particles joined together, the plurality of cement particles and the silica particles having a dimension less than or equal to a micrometric dimension;

positioning an integrated detection module of the device into the housing;

forming, using the building material, a filling to define a package that covers the integrated detection module; and

coupling the package to a support configured to support electromagnetic circuitry and configured to fix the device to a supporting structure passing through a plurality of points to be monitored within the solid structure.

62. The method according to claim 61, further comprising forming a further package portion around a further portion of the device with respect to the integrated detection module by injecting the building material into a mould.