EP1081506B1 - Deckenfliese mit einem Sender-Empfängersystem - Google Patents
Deckenfliese mit einem Sender-Empfängersystem Download PDFInfo
- Publication number
- EP1081506B1 EP1081506B1 EP00116401A EP00116401A EP1081506B1 EP 1081506 B1 EP1081506 B1 EP 1081506B1 EP 00116401 A EP00116401 A EP 00116401A EP 00116401 A EP00116401 A EP 00116401A EP 1081506 B1 EP1081506 B1 EP 1081506B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmitter
- ceiling
- ceiling tile
- receiver device
- 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.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
- E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
- E04B9/0457—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having closed internal cavities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Definitions
- the invention relates to a ceiling tile transmitter and receiver system for transmitting and receiving electromagnetic signals in a defined area of a building space comprising a ceiling tile or panel including a front surface to be faced towards the room, a back surface to be faced towards the plenum, and lateral surfaces and at least one transmitter/receiver device supported by the ceiling tile.
- Building management systems contain various appliances for building service functions, a control system for control and regulation of the appliances, and a communication bus for communication of signals between the control system and the appliances.
- Such a system is used for the central management of building functions, such as lighting, heating, and ventilation etc.
- the appliances include, for example, lighting, heating equipment, air-conditioning devices or electrically movable window blinds.
- the central management of energy consumption services allows a relatively easy adjustment of the level of light or temperature to the actual existing demand at any moment. This results in considerable savings of energy and costs.
- Such a system precisely monitors energy consumption and enables accurate billing of the users in a multi-user building.
- Such a building management system can also be used for peak saving purposes to comply with the requirements of an electric company to keep power consumption below an agreed maximum leveL
- One communication system may require one frequency setting whereas another communication system may require an entirely different frequency setting.
- one communication system may require a certain power or gain, whereas another would be different.
- Antenna gain is related to antenna size, and therefore if more gain is needed, the size of the antenna is increased.
- Aesthetics have become of primary importance in building ceiling systems. Many ceiling manufacturers offer a wide variety of designs and colors for their suspended ceiling systems.
- the communication bus system is still a "hardwired" configuration. This leads to a decrease in flexibility, since a room's square footage may change over time, and therefore the transmitter/receiver devices and the hardwired communication bus may also need to be changed or rerouted. Rerouting or changing current transmitter/receiver devices requires modifying ceiling panels (drilling/punching/cutting) and replacing the ceiling tiles that had the transmitter/ receiver device in it.
- transmitter/receiver devices have poor aesthetics when suspended from ceiling panels.
- a rod or dish antenna system is added to the ceiling panel to allow it to communicate to appliances below.
- the prior art of the generic kind according to GB 2 283 642 A discloses a suspended ceiling consisting of runners, the flanges of which support the ceiling tiles.
- One of these ceiling tiles is modified by having mounted thereabove a base station for a radio telephone system.
- the base station has an H-field flat antenna printed on a printed circuit board.
- the antenna is coplanar with the ceiling tile and may be mounted on the upper or lower surface thereof.
- the underside of this modified ceiling tile matches the remaining ceiling tiles of the suspended ceiling.
- US 4 923 032 discloses a suspended ceiling comprising a grid structure of inverted T-shaped runners supporting ceiling tiles of standard size.
- One or more of the ceiling tiles can be replaced by a loudspeaker module of the same size.
- This module consists of a mounting panel corresponding in size and shape to a ceiling tile.
- a pair of speakers is installed in the mounting panel.
- a shallow rear housing is attached to the mounting panel provided with electrical connectors on its rear side, while on the opposite side a demountable grill is attached to the mounting panel to enclose the front faces of the speakers.
- the demountable grill indudes an acoustically transparent covering of cloth or the like which may be colored and/or textured to match the surface of the adjacent ceiling tiles. Between the mounting panel and the supporting flanges of the grid an insulating foam material is located to provide a vibration absorbing interface between the module and the supporting grid. The deformable grill extends beyond the plane of the room facing surfaces of the runners.
- This object is achieved with the system of the generic kind by providing at least one pocket in at least one surface of the front, back and lateral surfaces, in which pocket the transmitter/receiver device is inserted and rigidly affixed.
- the at least one pocket is provided in the front surface and that a scrim cover is placed over the entire front surface.
- the at least one pocket is formed in the at least one surface by cutting with a router, by stamping after wet manufacturing of the ceiling tile or by placing a ceramic placeholder for the pocket during forming and curing of the ceiling tile and removing the placeholder thereafter.
- the transmitter/receiver device is located above the plane formed by the room facing surface of a ceiling suspension system.
- the basic concept of the present invention is to attach or embed at least one transmitter/receiver device in a ceiling panel either during or after the ceiling panel manufacturing process.
- at least one pocket is created on the backside of the ceiling panel, of variable size and shape, by the ceiling panel manufacturing process and then a transmitter/receiver device, such as an RF antenna, is rigidly fixed in the pocket after ceiling panel manufacturing.
- the transmitter/receiver device is inserted and affixed in a pocket in the front side of the ceiling tile and a "scrim" covering is placed over it.
- the ceiling tile transmitter and receiver system described herein can be incorporated into a wireless communication plane providing an umbrella of connectivity for devices. Such devices can span a range from appliances to computer clients (workstations, laptops, hand-held devices, etc.).
- RF antennas, transceivers and receivers can be inserted in the pockets in the ceiling tile and affixed therein.
- the components of the transmitter/receiver system include miniature antennas, single chip transceivers, sensors, power supplies, microprocessors, etc.
- the transmitter/receiver system in one preferred embodiment employs an omnidirectional multistrip antenna that has a toroidal field pattern and provides omnidirectional coverage in any plane around the long axis of the antenna and two lobes in any plane parallel to the long axis.
- Such microstrip antenna and also omnidirectional air-loaded patch element antennas are available for different frequencies and application requirements.
- One exemplary antenna that can be used is the Microsphere omnidirectional microstrip antenna available from Xertex Technologies.
- the present invention has been described in the context of the manufacturing of ceiling tiles that incorporate transmitter/receiver devices affixed in pockets either during or after the manufacture of ceiling tiles, the invention is equally applicable to the installation of transmitter/receiver devices in existing ceiling tiles. To serve that end, it is a simple extension to provide a retrofitting kit to building supply vendors, building contractors or directly to other parties that includes the tools and additional hardware required to form pockets in existing ceiling tiles to accommodate transmitter/receiver devices and to rigidly affix the transmitter/receiver devices in the pockets.
- a high temperature resistant "place holding" structure that can withstand the ceiling tile treatments can also be provided that can be removed later to allow the mounting of the transmitter/receiver device.
- Fig. 1 illustrates a ceiling tile with formed or cut pockets on the back surface for rigidly fixing antennas or other electronic devices.
- Fig. 2 illustrates a ceiling tile with formed pockets on the back surface with one pocket containing a transmitter/receiver device.
- Fig. 3 illustrates a ceiling tile with formed pockets on the front surface for containing a transmitter/receiver device, and a scrim cover for attaching to the front surface.
- Fig. 4 illustrates an embedded transmitter/receiver device that does not form part of the present invention.
- each pocket is created on the backside of the ceiling panel during the ceiling panel manufacturing process, wherein each pocket can be of a different size and shape, and antennas, or other electronic components, are rigidly fixed in these pockets after ceiling panel manufacturing.
- Fig. 1 Shown in Fig. 1 is a section from a ceiling tile 1, with back surface (facing towards the plenum) 10 and a front surface (facing towards the room) 20.
- back surface and “upper surface” are used interchangeably.
- front surface” and “lower surface” are interchangeable.
- pockets 2, 3, and 4. can be made of different dimensions in width, length and depth, to account for various possible sizes and shapes of the transmitter/receiver antennas or other electronic devices to be inserted.
- a ceiling tile router can be used to cut pockets 2, 3, 4 after the ceiling tiles are fully manufactured. These pockets also can be stamped on the back side after the ceiling tile is wet manufactured. Alternately, these pockets can be defined by placing a ceramic placeholder during the forming process of the ceiling tile, so that the ceiling tile is wet-formed and then cured. When the ceiling tile dries, the ceramic placeholders are removed. These are just a few of the possible methods of creating these pockets.
- Fig. 2 illustrates a ceiling tile 1 with an antenna 50 having electrical leads 60, and which can be used for the transmission or reception of radio frequency (RF) signals.
- the antenna is placed in the pocket 2 of the ceiling tile 1.
- the pockets are designed so as to allow any of multiple sizes and shapes of antennas to be placed in the pockets. These antennas can simply be glued or clamped into the pocket.
- the electrical leads are usually of the coaxial type with easy to connect connectors.
- FIG. 3 A second embodiment is depicted in Fig. 3 with a ceiling panel 1 having a top surface 203 and a bottom surface 202.
- This structure is shown inverted from the structures illustrated in Figs. 1 and 2 in which the back of the ceiling tile faces up, whereas in Fig. 3 the front of the ceiling tile faces up.
- Pockets 30 and 31 are shown, fabricated as before.
- Antenna 50 is placed/fixed in pocket 30, with electrical leads 51 being routed out through the back of the ceiling paneL
- a hole is formed from the pocket to the back of the ceiling tile by a drill or other means.
- the scrim 201 normally used in aesthetic ceiling tiles, is a sheath stretched and glued over the front face 203 of the ceiling tile 1. As can be seen, this scrim covers both the ceiling tile 1 and the antenna 50.
- the scrim In high volume manufacturing of ceiling tiles, many pockets may be formed in the ceiling tile but not filled with an antenna, as discussed above.
- the scrim also covers an empty pocket 31.
- a dummy antenna structure is placed in the pocket. The antenna and dummy structure, if any, are glued into place.
- Another method to completely encapsulate an antenna is to form a deep pocket in the ceiling tile as illustrated in Fig. 1.
- the antenna is fixed in the deep pocket followed by a back fill of the rest of the opening with a plug of ceiling tile that is glued in, or form a hardening paste in the antenna.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Transceivers (AREA)
- Radar Systems Or Details Thereof (AREA)
- Structure Of Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Claims (4)
- Deckenplatte mit einem Sender-Empfängersystem zum Senden und Empfangen von elektromagnetischen Signalen in einem begrenzten Bereich eines Gebäuderaumsmit einer Deckenplatte (1), die eine Frontfläche (20, 203), welche dem Raum zuzuwenden ist, eine Rückfläche (10, 202), die der Deckenkammer zuzuwenden ist, und Seitenflächen aufweist, undmit wenigstens eine Sender-Empfängervorrichtung, die von der Deckenplatte (1) gehalten wird,wenigstens eine Tasche (2, 3, 4; 30, 31) in wenigstens einer der Front-, Rückund Seitenflächen (10, 20, 203), wobei die Sender-Empfängervorrichtung in die Tasche (2, 3, 4; 30, 31) eingelegt und starr befestigt ist.
- System nach Anspruch 1, dadurch gekennzeichnet, dass die wenigstens eine Tasche (30, 31) in der Frontfläche (203) vorgesehen ist und dass über der ganzen Frontfläche (203) eine Stoffabdeckung (201) angeordnet ist.
- System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die wenigstens eine Tasche (2, 3, 4; 30, 31) in der wenigstens einen Fläche (10, 20, 203) durch Ausschneiden mit einem Fräser, durch Ausstanzen nach einer Nassfertigung der Deckenplatte (1) oder durch Anordnen eines keramischen Platzeinsatzes für die Tasche (2, 3, 4;,30, 31) während des Ausformens und des Härtens der Deckenplatte (1) und durch anschließendes Entfernen des Platzeinsatzes ausgebildet ist.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sender-Empfängervorrichtung über der Ebene angeordnet ist, die von der dem Raum zugewandten Fläche eines Hängedeckensystems gebildet wird.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02026799A EP1296408A3 (de) | 1999-08-10 | 2000-07-28 | Deckenpaneel mit einem Sender-Empfängersystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14806099P | 1999-08-10 | 1999-08-10 | |
US148060 | 1999-08-10 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02026799A Division EP1296408A3 (de) | 1999-08-10 | 2000-07-28 | Deckenpaneel mit einem Sender-Empfängersystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1081506A1 EP1081506A1 (de) | 2001-03-07 |
EP1081506B1 true EP1081506B1 (de) | 2003-12-17 |
Family
ID=22524076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116401A Expired - Lifetime EP1081506B1 (de) | 1999-08-10 | 2000-07-28 | Deckenfliese mit einem Sender-Empfängersystem |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1081506B1 (de) |
AT (1) | ATE256872T1 (de) |
CA (1) | CA2314664A1 (de) |
DE (1) | DE60007242D1 (de) |
MX (1) | MXPA00007778A (de) |
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- 2000-07-26 CA CA002314664A patent/CA2314664A1/en not_active Abandoned
- 2000-07-28 EP EP00116401A patent/EP1081506B1/de not_active Expired - Lifetime
- 2000-07-28 DE DE60007242T patent/DE60007242D1/de not_active Expired - Lifetime
- 2000-07-28 AT AT00116401T patent/ATE256872T1/de not_active IP Right Cessation
- 2000-08-09 MX MXPA00007778A patent/MXPA00007778A/es unknown
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CA2314664A1 (en) | 2001-02-10 |
EP1081506A1 (de) | 2001-03-07 |
ATE256872T1 (de) | 2004-01-15 |
DE60007242D1 (de) | 2004-01-29 |
MXPA00007778A (es) | 2004-11-12 |
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