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WO2008109998A1 - Procédé et appareil pour détecter l'humidité - Google Patents

Procédé et appareil pour détecter l'humidité Download PDF

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Publication number
WO2008109998A1
WO2008109998A1 PCT/CA2008/000461 CA2008000461W WO2008109998A1 WO 2008109998 A1 WO2008109998 A1 WO 2008109998A1 CA 2008000461 W CA2008000461 W CA 2008000461W WO 2008109998 A1 WO2008109998 A1 WO 2008109998A1
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WO
WIPO (PCT)
Prior art keywords
humidity
humidity sensor
locations
sensor
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CA2008/000461
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English (en)
Inventor
Eric GÉRARD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2008109998A1 publication Critical patent/WO2008109998A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Definitions

  • This invention relates to the field of detection systems. More precisely, this invention pertains to a method and apparatus for detecting humidity.
  • water leaks may be caused from various reasons. For instance, a water leak may be caused by a defective or an inefficient insulation material. This is for instance the case in leaks originating from roofs. Another type of water leaks may be caused by defective piping elements. Those leaks may occur randomly in virtually any places of a building, an apartment or a house. Preventing those types of leaks can be very cumbersome.
  • the invention provides a method and apparatus for detecting humidity at a plurality of locations, the apparatus comprising a data network, a plurality of humidity sensor unit, each installed at a corresponding one of a plurality of locations, each providing a corresponding signal inductive of a humidity at the location, a plurality of sensor interfaces, each connected to at least one corresponding humidity sensor unit and to the data network, each receiving the corresponding signal inductive of a humidity level providing the signal inductive of a humidity level with an indication of the location and a monitoring unit connected to the data network for receiving and providing each of the signal indicative of a humidity level with an indication of the location.
  • Fig. 1 is a block diagram showing an embodiment of an apparatus for detecting humidity; the apparatus comprises a plurality of humidity sensors, a plurality of sensor interfaces, a monitoring unit and a data network.
  • Fig. 2 is a perspective view showing an embodiment of a configuration in which a humidity sensor and a corresponding sensor interface are installed.
  • Fig. 3 is a perspective enlarged view of a configuration in which a humidity sensor and a corresponding sensor interface are installed.
  • Fig. 4 is an exploded view of the configuration in which a humidity sensor and a corresponding sensor interface are installed.
  • Fig. 5 is a perspective view showing where a humidity sensor is installed in one embodiment.
  • Fig. 6 is a perspective view showing an embodiment in which the humidity sensor and the corresponding sensor interface have been installed.
  • Fig. 7 is a rear exploded and perspective view of a sensor interface according to one embodiment.
  • Fig. 8 is a front perspective view of an assembled sensor interface according to one embodiment.
  • Fig. 9 is a side elevation view of an embodiment of a humidity sensor that has been installed together with an enlarged view thereof.
  • Fig. 10 is a front perspective view of one embodiment of a location in which a humidity sensor and a corresponding sensor interface have been installed.
  • Fig. 11 is a front perspective view which shows a plurality of humidity sensors connected together.
  • Fig. 12 is a front perspective and enlarged view of a humidity sensor shown in Fig. 11.
  • Fig. 13 is a rear perspective and enlarged view of the humidity sensor shown in Fig. 12.
  • Fig. 14 is a front perspective view of one embodiment of a humidity sensor prior its installation.
  • Fig. 15 is a front perspective and exploded view of one embodiment of a humidity sensor prior its installation.
  • Fig. 16 is a rear perspective view of one embodiment of a humidity sensor prior its installation.
  • FIG. 1 there is shown an embodiment of an apparatus for detecting humidity 100.
  • Such apparatus for detecting humidity 100 may be advantageously used in various locations such as in a home, in an apartment building, in a commercial building or in any other type of construction.
  • the apparatus for detecting humidity 100 comprises a plurality of humidity sensor units 102, a plurality of sensor interfaces 104, a data network 106 and a monitoring unit 108.
  • the plurality of humidity sensor units 102 comprises a first humidity sensor unit 110, a second humidity sensor unit 112, a third humidity sensor unit 114, a fourth humidity sensor unit 116, a fifth humidity sensor unit 118 and a sixth humidity sensor unit 120.
  • Each humidity sensor unit of the plurality of humidity sensor units 102 is installed at a corresponding one of a plurality of locations of a building for instance and is adapted for providing a corresponding signal indicative of a humidity level at a given location.
  • the humidity sensor is made of corrosion- resistant material and comprises a low resistance electrical conductor. It will also be further appreciated that the shape of the humidity sensor unit may vary depending on an application sought.
  • the plurality of sensor interfaces 104 comprises, in the embodiment disclosed in Fig. 1 , a first sensor interface 122, a second sensor interface 124, a third sensor interface 126, a fourth sensor interface 128, a fifth sensor interface 130 and a sixth sensor interface 132.
  • Each sensor interface of the plurality of sensor interfaces 104 is operatively connected to at least one corresponding humidity sensor unit of the plurality of humidity sensor units 102.
  • each humidity sensor unit is connected to a corresponding sensor interface using a pair of wires, electronically rated for a better reading.
  • each sensor interface of the plurality of sensor interfaces 104 is further operatively connected to the data network 106.
  • each sensor interface of the plurality of sensor interfaces 104 receives a corresponding signal indicative of a humidity level and provides at least one part of the signal indicative of a humidity level with an indication of the location where the humidity sensor unit is located.
  • Each sensor interface of the plurality of sensor interfaces 104 is connected to the monitoring unit 108 via the data network 106. In one embodiment the connection is performed using a bidirectional communication link.
  • each sensor interface of the plurality of sensor interfaces 104 enables the connecting of at least one humidity sensor unit to the monitoring unit 108.
  • each sensor interface of the plurality of sensor interfaces 104 is transmitting data using RS 485 protocol with a bidirectional central interface.
  • each given sensor interface comprises an automatic and permanent addressing system for uniquely addressing the sensor interface. It will be appreciated that the addressing of each sensor interface of the plurality of sensor interfaces 104 is performed at the time of installation.
  • Each sensor interface is then accessed by the monitoring unit 108 using the addressing system.
  • the data network 106 comprises a RS 485 BUS.
  • the data network comprises a network based on the RS 232 protocol or the like.
  • each of the plurality of sensor interfaces 104 may be directly addressed by the monitoring unit 108.
  • the monitoring unit 108 is connected to the data network 106. More precisely, the monitoring unit 108 is used to display information related to a level of humidity at a corresponding location using the provided signal indicative of the humidity level with the indication of the location where the humidity sensor unit is located.
  • the monitoring unit 108 may have an interface comprising a user interface, such as an alphanumeric keyboard, a display unit, such as a liquid crystal display, a buzzer and a transformer.
  • the monitoring unit 108 may further inform the user on the operation of the apparatus 100.
  • the monitoring unit 108 may further be used to program the plurality of sensor interfaces 104.
  • the display unit of the monitoring unit 108 may be adapted to display information such as a location of a conductive fluid (e.g. water) infiltration.
  • the indication of a water infiltration may comprise, for instance, an identification of a site and an identification of a distance to the detected conductive fluid infiltration.
  • the display unit of the monitoring unit 108 may further be used to provide additional data such as information on a time and the date of the infiltration as well as an indication of an infiltration intensity scale.
  • the infiltration intensity scale ranges from 1 (i.e. low infiltration) to 5 (i.e. high infiltration).
  • the display unit of the monitoring unit 108 may also provide an indication of last events as well as the location of a beginning of a major conductive fluid infiltration.
  • the display unit of the monitoring unit 108 may further comprise a protection system such as an automatic circuit breaker device in case of a flood, a warning panel connectivity by relay contact to notify a central alarm in case of an event, etc.
  • a protection system such as an automatic circuit breaker device in case of a flood, a warning panel connectivity by relay contact to notify a central alarm in case of an event, etc.
  • the monitoring unit 108 may be interconnected to an existing alarm control panel.
  • an existing alarm control panel The skilled addressee will appreciate that this is of great advantage in order to relay a water infiltration alarm via the alarm control panel of an existing alarm company.
  • Fig. 2 there is shown an embodiment of a location where the humidity sensor unit 110 is installed. It will be appreciated that the sensor interface 122 is also installed and is visible by a user or an operator.
  • the humidity sensor unit 110 is installed on a basement concrete 200 at an intersection between a vertical concrete planar surface 202 and an horizontal concrete planar surface 204.
  • a vertical isolation material 206 is installed on the vertical concrete planar surface 202 above the humidity sensor unit 1 10.
  • a plurality of structural divisions 208 are vertically positioned on the vertical isolation material 206.
  • a wall 210 is vertically mounted on the plurality of structural divisions 208.
  • a molding 212 is installed on the bottom part of the wall 210.
  • the sensor interface 122 is installed in the molding 212.
  • the sensor interface 122 may be installed on the bottom part of the wall 210 in the case where there is no molding 212 on the bottom part of the wall 210.
  • the sensor interface 122 may be further cast in silicone enabling it to be drowned in a conductive fluid in case of flood for instance.
  • the humidity sensor 110 is positioned on the bottom part of the basement concrete 200.
  • the skilled addressee will appreciate that the humidity sensor 1 10 as well as the sensor interface 122 may be positioned in another plurality of positions depending on an application sought.
  • Fig. 3 shows an enlarged view of the embodiment disclosed in Fig. 2.
  • the humidity sensor 110 is installed at the intersection between the vertical concrete planar surface 202 and the horizontal concrete planar surface 204.
  • the sensor interface 122 is shown as being installed inside the molding 212.
  • the molding 212 is mounted on the bottom of a wall 210 which is mounted on the plurality of structural divisions 208 which are vertically positioned on the vertical isolation material 206.
  • the sensor interface 122 is visible by a user who is knowledgeable of its existence.
  • the sensor interface 122 is located in the vicinity of the humidity sensor 110, to which it is connected to, which is of great advantage. In fact, in case of a conductive fluid infiltration detected by the humidity sensor 110, the user will know that the infiltration is in the vicinity of the sensor interface 122 since the humidity sensor 110 is operatively connected to the humidity sensor 110.
  • Figure 4 shows an exploded view indicating where the humidity sensor unit 110 is installed according to one embodiment and further wherein the sensor interface 122 is installed according to this embodiment.
  • FIG. 5 shows where the humidity sensor 110 is installed in one embodiment.
  • the humidity sensor 110 is installed after the building of the concrete surface 200 of the building. More precisely, the humidity sensor 110 is mounted on a rack 1 100.
  • the rack 1 100 is first installed at the intersection between the vertical concrete planar surface 202 and the horizontal concrete planar surface 204.
  • Figure 6 shows an embodiment where the vertical isolation material 206 has been mounted on the vertical concrete planar surface 202 above the humidity sensor 110. Still in the embodiment, the plurality of structural divisions 208 have been vertically mounted on the vertical isolation material 206. The wall 210 has been further mounted on the plurality of structural divisions 208. In this embodiment, the sensor interface 122 is installed on the bottom of the wall 210 and the rack 1100 has been installed to receive a plurality of humidity sensor units.
  • Fig. 7 there is shown an embodiment of 1he sensor interface 122.
  • the sensor interface 122 has a substantially cylindrical shape.
  • the skilled addressee will appreciate that because of this shape it is easy to install the sensor interface 122 in a material since only a drilling may be required to perform such installing.
  • the skilled addressee will appreciate that alternatively various other shapes may be used.
  • the sensor interface 122 comprises a light indicator 700 in visual contact with a clear lens 702.
  • the clear lens 702 is provided for enabling a user to check the sensor interface 122.
  • the clear lens 702 is made of a transparent plastic material. Alternatively, many other materials may be used for the clear lens.
  • the light indicator 700 may enable a user to do a maintenance test on a corresponding at least one humidity sensor unit to which it is connected to in order to check for instance, the corresponding humidity sensor power supply and communication for instance.
  • the light indicator 700 may further be used in case of the detection of a conductive fluid in order to advantageously locate it.
  • the light indicator 700 comprises a LED.
  • the sensor interface 122 further comprises a sensor interface circuit board 704 to which the light indicator 700 is electrically connected to.
  • the sensor interface circuit board 704 is used to process data coming from at least one humidity sensor unit to which the sensor interface 122 is connected to. More precisely, the sensor interface circuit board 704 is used to receive a corresponding signal indicative of a humidity level from at least one humidity sensor unit and is further used to provide the signal indicative of a humidity level together with an indication of the location of the humidity sensor unit to the monitoring unit 108 via the data network 106. It will be appreciated by the skilled addressee that various embodiments of the sensor interface circuit board 704 may be provided.
  • the sensor interface 122 further comprises a cover 706 for covering the sensor interface circuit board 704 as well as the light indicator 700.
  • the cover 706 comprises a plastic cover. It will be appreciated that the cover 706 comprises at its back a wire hole 708.
  • the sensor interface circuit board 704 of the sensor interface 122 and the corresponding humidity sensors are connected using wires that are inserted through the wire hole 708.
  • the wire hole 708 is located in the back of the sensor interface 122.
  • a front perspective view of an assembled sensor interface 122 there is shown a front perspective view of an assembled sensor interface 122.
  • the clear lens 702 has been mounted on the cover 706.
  • the clear lens 702 is provided for enabling a user to check the light indicator 700 of the sensor interface 122.
  • the sensor interface 122 may further comprises an LCD display for displaying information such as a distance to a detected conductive fluid infiltration and a sign, e.g. an arrow, indicative of the direction to the detected conductive fluid infiltration.
  • Fig. 9 shows how the humidity sensor 110 and the sensor interface 122 are installed. It will be appreciated that the humidity sensor 1 10 has a width equal to the width of the vertical isolation material 206 which is of great advantage. Moreover, it will be appreciated that the humidity sensor 110 is positioned such that it simultaneously touches the vertical concrete planar surface 202 and the horizontal concrete planar surface 204 thus enabling to detect a conductive fluid infiltration on both surfaces.
  • Fig. 10 shows an embodiment where the humidity sensor 110 has been installed in the molding 212 on the bottom part of the wall 210.
  • Fig. 11 shows how the humidity sensor 110 is installed on the rack 1100 to which another plurality of humidity sensors 1102 are connected to.
  • the rack 1 100 may be provided with various lengths suitable for various configurations.
  • the rack 1100 is made with a non-conductive material such as plastic.
  • the rack 1100 is made of steel.
  • Fig. 12 shows an enlarged view of Fig. 11 wherein the rack 1100 is used to support a plurality of humidity sensors.
  • the humidity sensor 110 may be mounted on the rack 1 100 using a plurality of rivets 1200 which are in one embodiment aluminum pop rivets.
  • the rack 1100 is first installed at the intersection between the vertical concrete planar surface 202 and the horizontal concrete planar surface 204. Then each of the plurality of humidity sensors is mounted on the rack 1100. It will be appreciated that each of the plurality of humidity sensors may be mounted on the rack 1100 using various means.
  • Fig. 12 further shows another embodiment of a sensor interface 1202 of the plurality of sensor interfaces 104.
  • the sensor interface 1202 is installed inside a humidity sensor and is secured to the rack 1100.
  • the sensor interface 1202 comprises a backup circuit since it is located at a location where a conductive fluid infiltration is possible.
  • Fig. 13 shows a rear perspective view of Fig. 11 which shows a plurality of holes 1300 used for securing the humidity sensor 1 10 using the plurality of bolts 1102.
  • Alternatively, other means may be used for securing the humidity sensor 110 to the plurality of holes 1300 of the rack 1100.
  • the sensor interface 1202 is connected to the rack 1100 using a plurality of holes 1302.
  • Fig. 14 shows an embodiment of the humidity sensor unit 1 10 before it is installed on the rack 1 100. It will be appreciated that the humidity sensor unit 110 has, in this embodiment, a planar but flexible shape.
  • the humidity sensor unit 1 10 comprises a first conductive material 1400, a second conductive material 1402, a first isolation material 1404, a second isolation material 1406, a conductive material 1408, two conductive materials 1410, two solder tabs 1412 and a plurality of rivets 1416.
  • the first conductive material 1400 and the second conductive material 1402 have an n-pronged shape.
  • the first conductive material 1400 and the second conductive material 1402 are made of an electrically conductive silicone such as EC 102 supplied by CS Hyde.
  • the first conductive material 1400 and the second conductive material 1402 are made of a Kapton XC black conductive polyimide film manufactured by DuPont (TM) .
  • the first conductive material 1400 and the second conductive material 1402 are made using a copper surface treated using a SD 2841 HAL-IR carbon conductive ink, manufactured by Peters.
  • Fig 15 there is shown how the humidity sensor unit 1 10 is built according to one embodiment. More precisely and as shov/n in Fig. 15, the first conductive material 1400 and the second conductive material 1402 are mounted on the first isolation material 1404 and the second isolation material 1406 which ensure that there is no electrical connection between the first conductive material 1400 and the second conductive material 1402. In fact, an electrical connection may occur between the first conductive material 1400 and the second conductive material 1402 in the case where there is a conductive fluid such as water such as in the case of a conductive fluid infiltration between the first conductive material 1400 and the second conductive material 1402.
  • a conductive fluid such as water
  • the conductive material 1408 is mounted on top of the second conductive material 1402 while the conductive material 1410 is mounted under the first conductive material 1400 on each side of the first conductive material 1400. Moreover, each of the two solder tabs 1412 is connected to corresponding one of the two conductive materials 1410. Each of the two solder tabs 1412 is connected to a positive voltage while the conductive material 1408 is connected to a negative voltage in one embodiment. Accordingly the presence of a conductive fluid in the humidity sensor unit 1 10 may be detected by measuring conductivity between at least one of the two solder tabs 1412 and the conductive material 1408.
  • the humidity sensor unit 110 comprises a single conductive material.
  • the humidity sensor unit 110 is less precise than in the case where it comprises two conductive materials.
  • the presence of a conductive fluid in the humidity sensor unit may be detected by measuring resistivity between two ends of the humidity sensor.
  • FIG. 16 there is shown a rear perspective view of the assembled humidity sensor unit 110.
  • sensors may be made with the same material (such as e.g. silicone electrically conductive) but they can be assembled differently for a better conductivity between materials. Also the installation is made easier.
  • the monitoring unit 108 is located on the wall of the room to monitor. In the case of a plurality of locations to monitor, the monitoring unit 108 may be located at a remote given location.
  • a plurality of humidity sensor units is located on the bottom of the walls and is suitable for detecting humidity. Upon detection of humidity, an alarm may be triggered on the monitoring unit 108.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

L'invention concerne un procédé et appareil pour détecter l'humidité au niveau d'une pluralité de lieux, l'appareil comprenant un réseau de données, une pluralité d'unités de capteur d'humidité, installées chacune au niveau d'un lieu correspondant de la pluralité de lieux, fournissant chacune un signal correspondant indicatif d'un niveau d'humidité au niveau dudit lieu, une pluralité d'interfaces de capteur, connectées chacune à au moins une unité de capteur d'humidité correspondante de ladite pluralité d'unités de capteur d'humidité et audit réseau de données, recevant chacune le signal correspondant indicatif d'un niveau d'humidité et dotant le signal indicatif d'un niveau d'humidité d'une indication du lieu et une unité de surveillance connectée au réseau de données pour recevoir et doter chaque signal indicatif d'un niveau d'humidité d'une indication du lieu.
PCT/CA2008/000461 2007-03-12 2008-03-11 Procédé et appareil pour détecter l'humidité Ceased WO2008109998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89429307P 2007-03-12 2007-03-12
US60/894,293 2007-03-12

Publications (1)

Publication Number Publication Date
WO2008109998A1 true WO2008109998A1 (fr) 2008-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2008/000461 Ceased WO2008109998A1 (fr) 2007-03-12 2008-03-11 Procédé et appareil pour détecter l'humidité

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WO (1) WO2008109998A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112965559A (zh) * 2021-02-04 2021-06-15 北京研华兴业电子科技有限公司 工业电脑湿度监测控制系统及监测控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5971597A (en) * 1995-03-29 1999-10-26 Hubbell Corporation Multifunction sensor and network sensor system
US20020130781A1 (en) * 2001-02-05 2002-09-19 Kroll Richard E. Method and apparatus for moisture detection in exterior sheathing of residential and commercial buildings
US20030011482A1 (en) * 2000-11-30 2003-01-16 Harms Frederick H. Moisture monitoring system
US7130757B2 (en) * 2003-12-03 2006-10-31 Jeld-Wen, Inc. Remote monitoring system
US7142123B1 (en) * 2005-09-23 2006-11-28 Lawrence Kates Method and apparatus for detecting moisture in building materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5971597A (en) * 1995-03-29 1999-10-26 Hubbell Corporation Multifunction sensor and network sensor system
US20030011482A1 (en) * 2000-11-30 2003-01-16 Harms Frederick H. Moisture monitoring system
US20020130781A1 (en) * 2001-02-05 2002-09-19 Kroll Richard E. Method and apparatus for moisture detection in exterior sheathing of residential and commercial buildings
US7130757B2 (en) * 2003-12-03 2006-10-31 Jeld-Wen, Inc. Remote monitoring system
US7142123B1 (en) * 2005-09-23 2006-11-28 Lawrence Kates Method and apparatus for detecting moisture in building materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112965559A (zh) * 2021-02-04 2021-06-15 北京研华兴业电子科技有限公司 工业电脑湿度监测控制系统及监测控制方法

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