EP1436154A1 - Dispositif de mesure, incluant au moins un capteur, apte a fonctionner dans des conditions difficiles - Google Patents
Dispositif de mesure, incluant au moins un capteur, apte a fonctionner dans des conditions difficilesInfo
- Publication number
- EP1436154A1 EP1436154A1 EP02795326A EP02795326A EP1436154A1 EP 1436154 A1 EP1436154 A1 EP 1436154A1 EP 02795326 A EP02795326 A EP 02795326A EP 02795326 A EP02795326 A EP 02795326A EP 1436154 A1 EP1436154 A1 EP 1436154A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- base
- measuring device
- charging
- antenna
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 47
- 238000012545 processing Methods 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
- B60C23/0413—Wireless charging of active radio frequency circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/02—Tyres specially adapted for particular applications for aircrafts
Definitions
- the present invention relates to the field of measurement devices, including at least one sensor, capable of operating under difficult conditions.
- difficult conditions it is meant that their sensor is intended to be mounted on a mobile element capable of being subjected to all kinds of movements, accelerations, in corrosive, humid atmospheres, under vacuum, at very high or very low temperature. , with abrasive dust etc.
- These measurement devices include one or more sensors for measuring physical or chemical quantities which constitute the essential elements of the acquisition of information.
- These sensors can be any. They can evaluate all kinds of physical or chemical quantities, for example pressure, temperature, position, speed, acceleration, humidity, gas concentration, shape. etc. They convert this physical or chemical quantity into an electrical quantity.
- the measuring device comprises at least one sensor on a movable element relative to a base and the sensor in order to be able to operate must be supplied with energy.
- the energy supply device that the measurement device includes to supply the sensor is not located in all on the movable element. Either the conditions prevailing there do not allow it, the temperature, the humidity are too high, the atmosphere is too corrosive. In some applications, maintenance is not easy, we could have to interrupt a process to change the supply device on the mobile element and this is not possible. In other applications, we simply do not have the necessary space. It has been proposed to supply the sensor remotely.
- the measuring device then comprises a first charging antenna connected to the sensor and a second charging antenna, the first charging antenna receiving energy from the second charging antenna distant from the first.
- the second charging antenna is intended to be connected to a main energy source which is located on the base. However, the second charging antenna is not located on the base. In fact, the frequencies and the powers which are necessary for the remote power supply are such that the first charging antenna and the second charging antenna cannot be distant more than a few tens of centimeters to be in compliance with the standards of electromagnetic compatibility.
- the second charging antenna is therefore connected to the main energy source by cable.
- the cable is still very stressed due to the difficult environment, its maintenance must be ensured with care. Cable replacement is likely to be frequent, which is not always easy due to lack of accessibility. Such maintenance is expensive.
- the measuring device also comprises, associated with the sensor, an electronic circuit, for processing which processes the information coming from the sensor and makes it usable. It is located near the sensor on the movable element.
- the sensor communicates via the electronic processing circuit with a user device.
- the user device is integral with the base and communication is generally done by teletransmission.
- the measurement device further comprises two communication antennas, a first located on the mobile element near the sensor and a second generally located near the second charging antenna and connected by wire connection with the user device.
- FIGS. 1A, 1B, 1C diagrammatically show an example of a known type of measuring device for monitoring the pressure of the tires 2 of an aircraft 1 in particular during the landing or takeoff phases.
- This measurement device comprises at least one pressure sensor 3 secured to a wheel 8 of the aircraft 1 and more precisely to its tire 2.
- the tire 2 In the rolling phase on the ground, the tire 2 is movable relative to the cabin 6, to the wings 15 and relative to the landing gear 11 of the aircraft 1.
- the pressure sensor 3 is associated with an electronic circuit of treatment 4 also located on the wheel 8 at the level of the tire 2.
- a rechargeable energy source 12 cooperates with the pressure sensor 3 and with its electronic processing circuit 4, it is located in their vicinity on the wheel 8 at or near the tire 2. It is connected to a first charging antenna 13-1 located on the wheel 8 at or near the tire 2. The first charging antenna 13-1 is intended to receive energy from a second charging antenna 13-2 secured to the hub 9 of the wheel 8 of the aircraft 1.
- the second charging antenna 13-2 is connected by cable 10 to a main energy source 16 situated at the level of the cabin 6 or of the wing 15 of the aircraft 1. This main energy source can be one of the generators of the aircraft.
- the pressure sensor 3 is intended to communicate with a user device 5 located at the level of the cabin 6 or of the wing 15 of the aircraft 1. This communication takes place by remote transmission.
- a first communication antenna 7-1 connected to the electronic circuit 4 and located on the wheel 8 at or near the tire 2, communicates with a second communication antenna 7-2 secured to the hub 9 of the wheel 8 of the aircraft 1 and connected by cable 10 to the user device 5.
- the cable 10 runs along the landing gear 11 of the aircraft 1.
- a single cable 10 has been shown to connect on the one hand the second antenna 7-2 for communication to the user device 5 and on the other hand the second antenna for charging 13-2 to the main energy source 16.
- the charge and communication functions are fulfilled by a single antenna, one part of which is secured to the wheel and the other to the hub.
- the cables which run along the landing gear 11 of the aircraft are very stressed due in particular to the extreme temperatures to which they can be carried (for example between -40 ° C. in the hold 14 of the landing gear during the flight and + 200 ° C at hub 9 during landing), movements they must undergo when exiting or re-entering the landing gear, rotating the wheels. They require to be changed regularly, which induces significant costs, labor and supply.
- This configuration also brings constraints in the choice of powers and frequencies to be transmitted to avoid disturbances when the antennas communicate with each other at the same time since they are all very close to each other.
- the present invention aims to overcome the drawbacks mentioned above by proposing a measuring device including at least one sensor secured to a movable element relative to a base, this measuring device being able to operate in difficult conditions without requiring very extensive maintenance.
- the present invention provides in a measuring device including at least one sensor integral with a movable element relative to a base, to remove the cable connections leading to the base and located in very exposed locations.
- the measuring device comprises at least one sensor intended to be mounted on a movable element relative to a base, the movable element being able to assume several positions relative to the base, one of which is called proximity, it is close to the base.
- the measuring device also comprises an energy supply device which cooperates with the sensor, this energy supply device having, located on the mobile element, a rechargeable energy source equipped with at least a first antenna. charging and at least a second charging antenna to be coupled to the first charging antenna for charging.
- the second charging antenna is located on the base and the coupling between two charging antennas is done only when the movable element is in the proximity position.
- the sensor of the measuring device is intended to communicate by remote transmission with a user device, communication is possible in one or more positions of the mobile element other than the proximity position. Communication can be bidirectional, namely in transmission and in reception.
- the measuring device may include at least a first communication antenna located on the mobile element and connected to the sensor, and at least a second communication antenna to be coupled to the first communication antenna, located on the base and connect to the user device. At least one of the communication antennas and one of the charging antennas can be combined.
- these two antennas When the pair of communication antennas is also dedicated to charging, these two antennas then have the two functions of communicating information and of recharging the sensor with energy.
- the measuring device may include an electronic processing circuit located in the vicinity of the sensor on the movable element, the communication between the sensor and the user device being via the electronic processing circuit.
- the rechargeable energy source can comprise at least one accumulator element or at least one capacitor.
- the measuring device can be brought to cooperate with one.
- removable auxiliary charger provided with an auxiliary charging antenna, this charger having to be approached to the first charging antenna to couple it to the auxiliary charging antenna while the mobile element is in a position other than its position of proximity by compared to the base.
- the auxiliary charger is equipped with a shielded box playing a Faraday cage role.
- the movable element can be produced by a wheel of an aircraft and the fixed element by a hold in which a landing gear fitted with such a wheel folds, in the position of proximity the landing gear being folded in the hold.
- the movable element is an arm and the base a support for the arm, in the position of proximity, the arm rests on the support.
- the sensor located on the mobile element can follow a closed trajectory, the mobile element successively assuming several positions including at least one working position and the proximity position.
- the present invention also relates to a method for transferring measurements between at least one sensor carried by a mobile element and a user device in which the sensor is supplied with energy by a rechargeable energy source.
- the energy source In proximity position between the mobile element and a base the energy source is recharged by coupling between two charging antennas one being located on the mobile element and the other on the base, and in a different position, the sensor communicates by. remote transmission with the user device via two communication antennas, one being located on the mobile element and the other being located on the base and being connected to the user device.
- FIGS. 1A, 1B, 1C respectively show an aircraft whose landing gear is equipped with a measuring device of known type, a side view and a partial and enlarged cross section of the landing gear ;
- FIG. 2A, 2B show an aircraft with the landing gear folded, equipped with a measuring device according to the invention
- - Figures 3A, 3B show the same aircraft with the landing gear unfolded
- Figure 4 shows the landing gear of the aircraft of Figure 3B cooperating with a removable auxiliary charger
- - Figures 5A, 5B a spray arm, equipped with a measuring device according to the invention in a working position and in a recharging position;
- FIG. 6 shows a manipulator arm equipped with a measuring device according to the invention.
- FIGS. 2A, 2B and 3A, 3B The measuring device according to the invention is applicable, in the example described, to the field of avionics.
- FIG. 2A shows an aircraft in flight with its landing gear folded in a hold 14 and
- FIG. 2B is a zoom of the landing gear folded.
- FIG. 3A shows an aircraft on the ground and FIG. 3B is a zoom of the unfolded landing gear.
- the aircraft bears the reference 1
- the wheels of the aircraft the reference 8 the cabin of the aircraft the reference 6, the landing gear the reference 11, the wings the reference 15, the hold of the landing gear the reference 14.
- the wheel 8 conventionally comprises a rim surrounded by a tire, the latter are not referenced.
- the measuring device comprises at least one sensor 20, here a pressure sensor for example, intended to be mounted on a mobile element relative to a base, in the example the mobile element 8 is the wheel of aircraft 1 and the base the hold 14 of aircraft 1 accommodating the landing gear 11.
- This hold can be located at a wing 15 or at the cabin 6, it depends on where the landing gear is attached.
- the. sensor could be a temperature sensor. for example .
- the sensor 20 is located at the tire of the wheel 8.
- FIGS. 2A and 3A all the elements carried by the wheels are shown diagrammatically by a circle so as not to obscure the figures. They are detailed in FIGS. 2B, 3B.
- the measuring device also comprises a device for supplying energy to the sensor 20.
- This device for supplying energy comprises a rechargeable energy source 22 equipped with at least a first charging antenna 23-1, the source of rechargeable energy 22 and the first charging antenna 23-1 being generally attached to the wheel 8, they can be located at the level of the tire or of the rim so as to be close to the sensor 20.
- the energy supply device further comprises at least a second charging antenna 23-2 located on the base 14, which must be coupled to the first charging antenna 23-1 to recharge the rechargeable energy source 22.
- the second charging antenna 23-2 radiates energy from a main energy source 26 located for example in the cabin 6 and which can be a generator of the aircraft.
- the wheel 8 is able to take several positions relative to the base 14. These positions depend in particular on the position of the landing gear 11 which can pass from a position, folded in the hold 14 to a 'unfolded position, - in taking a plurality of intermediate positions.
- proximity in which the movable element 8 is close to the base 14. This position of proximity corresponds to the situation in which the landing gear 11 is folded up in the hold 14 of the aircraft 1. In this position the aircraft is in flight.
- the coupling between the first charging antenna 23-1 and the second charging antenna 23-2 takes place only when the movable element 8 is in the proximity position.
- the rechargeable energy source 22 can be produced by at least one capacitor whose capacity will be adapted to the autonomy that the sensor must have. This autonomy may be several hours in the application of the tire pressure monitoring of an aircraft. It could be envisaged that the rechargeable energy source is produced from accumulator elements insofar as they are capable of operating at high temperatures, of the order of 175 ° C. for example, and even of supporting temperatures of around 210 ° C without risk of explosion.
- the sensor 20 is intended to communicate with a user device 5 located for example in the cabin 6 or in the structure of the wing 15 of the aircraft 1. This communication is done by teletransmission.
- the user device can for example trigger an alarm when the pressure is too low.
- This remote transmission can take place when the mobile element 8 is in a position other than in the proximity position.
- the measurement device further comprises an electronic processing circuit 24 which processes the information coming from the sensor 20 and makes it usable.
- the communication between the sensor 20 and the user device 5 passes via the electronic processing circuit 24.
- the electronic processing circuit 24 is located in the vicinity of the sensor 20 on the mobile element 8.
- the measurement device comprises, so that the remote transmission can be ensured, at least a first communication antenna 25-1 located on the mobile element 8 and at least a second communication antenna 25-2 located at the base 14.
- the first communication antenna 25-1 is connected to sensor 20 via the electronic processing circuit 24.
- the second communication antenna 25-2 is to be connected to the user device 5.
- the first communication antenna 25-1 is located like the first charging antenna near the sensor 20, it can be on the tire or on the rim . --.- ..
- the power of the energy used for communication is much lower than that required for recharging.
- the frequencies used are adapted to comply with electromagnetic compatibility standards and transmission can take place when the landing gear is unfolded, that is to say when it is necessary to check the tire pressure just before a landing or an lift-off. Separating the power supply and the communication optimizes the choice of frequencies and powers for each of the functions. The possibilities for placing the antennas are also greater.
- the energy consumed is 0.6 Joule, this energy corresponds to a capacity of 1 mF under 10V.
- FIG. 4 shows this arrangement on a landing gear structure 11 conforming to that of FIG. 3B. . .... • • "When the aircraft is on the ground, in the maintenance phase for example, it may be necessary to check the tire pressure and the rechargeable energy source may not be sufficiently charged.
- the charger 30 comprises in an armored housing 31 an auxiliary energy source 32 connected to an auxiliary charging antenna 33.
- the shielded housing 31 serves as a Faraday cage and prevents any leakage of energy into the atmosphere
- the measuring device according to the invention can have applications in fields other than avionics.
- FIGS. 5A, 5B illustrate another application in the industrial field.
- the measuring device is intended to evaluate the climatic conditions prevailing in a cabin 50 in which bodies 51 are painted automatically using a spray arm 52.
- a bodywork 51 is in place in the cabin 50 and the arm 52 is in the process of painting it.
- Arm 52 ends with a nozzle 53 paint ejection.
- the arm 52 is articulated and its end opposite the nozzle 53 is secured to a base 54.
- the arm 52 can take a multitude of positions relative to the base 54, among which a multitude of working positions as on the Figure 5A and a rest position in which it is folded over the base 54 as in Figure 5B.
- the paint booth 50 is empty.
- the end of the arm 52 which carries the nozzle 53 is equipped with one or more sensors 55 intended to evaluate the atmosphere in the cabin 50.
- sensors 55 can for example be sensors of temperature, humidity, gas. We want to know before starting a painting operation if the climatic conditions in the cabin are optimal and before taking out a freshly painted bodywork if the paint layer is sufficiently dry.
- the senor 55 receives energy from an energy supply device which comprises a rechargeable energy source 56 equipped with at least a first charging antenna 57-1, the source d rechargeable energy 56 and the first charging antenna 57-1 being integral with the arm 52.
- the rechargeable energy source can be produced from accumulator or battery elements.
- the energy supply device further comprises a second charging antenna 57-2 located on the base 54, which must be coupled to the first charging antenna 57-1 to recharge the rechargeable energy source 56.
- the second antenna charge 57-2 radiates energy from a main energy source which in this example is the sector which is symbolized by the socket at the base of base 54.
- the second charging antenna 57-2 is located at bottom of a housing 58 of the base 54 in which: the end of the arm 52 is fitted, fitted with the nozzle 53 when it takes its rest position. This housing 58 has the role of a Faraday cage.
- the sensor 55 is intended to communicate with a user device 60 located on the base 54. This communication is done by teletransmission.
- the user device 60 can for example control the ejection of the paint and the movement of the arm.
- the remote transmission takes place when the arm 52 is in a position other than in the proximity position, when the end of the arm 52 carrying the nozzle 53 plunges into the cabin 50.
- An electronic processing circuit 59 processes the information from sensor 55 and makes them usable.
- the communication between the sensor 55 and the user device 58 passes through the electronic processing circuit 59.
- the remote transmission takes place between a first communication antenna 60-1 located on the arm 52 and a second communication antenna 60-2 located on the base 54.
- the first "communication antenna 60-1 is connected to the sensor 55 via the electronic processing circuit 59.
- the second communication antenna 60-2 is connected to the user device 58.
- FIG. 6 There is shown a manipulator arm 62 ending in a clamp 63 for gripping, each in turn, the parts to be checked 64 when they arrive at the end of a transport chain 65. They are examined and sorted according to the result of the examination.
- the pieces 64 to be checked are bottles.
- the other end of the arm 62 is integral with a pivot 66, so that the arm can be rotated around the pivot 66.
- the clamp 63 passes successively at a gripping zone 67 bottles located at the end of the transport chain 65, of a packaging area 68 of the bottles recognized as compliant, of a storage area 69 of the bottles recognized as defective, of a recharging area 70.
- the arm 62 is movable by - relation to these different zones 67, 68, 69, 70.
- the arm 62 is equipped at its end carrying the clamp 63 'with at least one shape sensor 71.
- the base corresponds to the recharging zone 70.
- the rechargeable energy source 72 integral with the arm 62, the rechargeable energy source 72, the first charging antenna 73-1, the electronic processing circuit 74 and the first communication antenna 75-1.
- a second charging antenna 73-2 and a second communication antenna 75-2 are integral with the charging zone 70.
- the second charging antenna 73-2 radiates energy from a source main energy (not shown), which can be the sector, in order to recharge the rechargeable energy source 72.
- the sensor 71 is intended to communicate with a user device 76 located for example in the charging zone 70.
- the device user 76 can for example control the opening and closing of the clamp 64.
- the recharging area 70 will also include a cover 77 which surrounds at least the second charging antenna 73-2 and inside which the arm 6 when it passes into the charging zone. It acts as a Faraday cage and prevents energy from leaking into the atmosphere. Passing at the level of the gripping zone 67, the pliers grip the bottle 64 which is at the end of the transport chain 65, the sensor 71 detects its shape and transmits the information detected by remote transmission via the electronic "processing circuit 74 to user device 76 which decides the fate of the bottle 64. If it conforms, the arm 62 deposits it in a package 68-1 located in the packaging area 68. If it is considered as defective, the arm 62 puts it in a container 69-1 located in the storage area 69.
- the arm 62 Continuing its rotary travel, the arm 62 enters the recharging area 70.
- the recharging of the rechargeable energy source 72 can be done.
- arm 62 again arrives in the gripping zone 67 and a new bottle 64 can be taken in.
- the sensor thus mounted on the arm follows a closed trajectory.
- the charging and communication antennas are physically different antennas since in these exposed cases it is advantageous to transmit energy and information at different frequencies. But it is obvious that these two functions can be carried out by a single pair of antennas: it suffices to choose the frequency best suited to these two modes.
- the communication antennas on the mobile element side 25-1, 60-1, 75-1 could be deleted and their role taken up by the charging antennas on the mobile element side 23-1, 57-1, 73-1.
- the communication antennas 25-2, 60-2, 75-2 can be eliminated and their role taken over by the charging antennas 23-2, 57-2, 73-2. We then only have two antennas.
- a communication antenna can be deleted on both and its role taken over by a charging antenna.
- the opposite is also possible, by removing one of the charging antennas.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0113509A FR2831264B1 (fr) | 2001-10-19 | 2001-10-19 | Dispositif de mesure, incluant au moins un capteur, apte a fonctionner dans des conditions difficiles |
| FR0113509 | 2001-10-19 | ||
| PCT/FR2002/003558 WO2003033283A1 (fr) | 2001-10-19 | 2002-10-17 | Dispositif de mesure, incluant au moins un capteur, apte a fonctionner dans des conditions difficiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1436154A1 true EP1436154A1 (fr) | 2004-07-14 |
Family
ID=8868482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02795326A Withdrawn EP1436154A1 (fr) | 2001-10-19 | 2002-10-17 | Dispositif de mesure, incluant au moins un capteur, apte a fonctionner dans des conditions difficiles |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7089157B2 (fr) |
| EP (1) | EP1436154A1 (fr) |
| JP (1) | JP2005505843A (fr) |
| FR (1) | FR2831264B1 (fr) |
| WO (1) | WO2003033283A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7468655B2 (en) * | 2006-08-25 | 2008-12-23 | The Goodyear Tire & Rubber Company | Aircraft tire condition monitoring system and method |
| FR2917217B1 (fr) * | 2007-06-07 | 2009-07-24 | Messier Bugatti Sa | Atterrisseur equipe d'un dispositif de communication entre une roue et l'atterrisseur |
| FR2974061B1 (fr) * | 2011-04-13 | 2013-06-07 | Michelin Soc Tech | Procede et dispositif de comptage du nombre d'atterrissages d'un pneumatique d'un aeronef |
| EP3002213A1 (fr) * | 2014-10-03 | 2016-04-06 | Goodrich Actuation Systems Ltd. | Système de propulsion d'un aéronef au sol |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8908041U1 (de) | 1989-06-29 | 1989-08-17 | Nettelhorst, Frhr. von, Herwig, Dr.-Ing., 1000 Berlin | Sensor für von tierischen oder menschlichen Körpern ausgehende mechanische Kräfte |
| CA2148179A1 (fr) * | 1994-05-13 | 1995-11-14 | Said S. Saadeh | Modem sans fil a stations de base et a stations eloignees multiples interchangeables et sures |
| US5553138A (en) * | 1994-05-13 | 1996-09-03 | Compaq Computer Corporation | Telephone line sourced power supply |
| US5896569A (en) * | 1996-05-15 | 1999-04-20 | Communications Manufacturing Company | Wireless access to telephone network dial tone |
| DE19702768C1 (de) * | 1997-01-27 | 1998-04-23 | Bartels Mangold Electronic Gmb | Vorrichtung zur drahtlosen Übertragung von mindestens einem Meßwert aus bewegten Teilen |
| JP3494440B2 (ja) * | 1996-05-29 | 2004-02-09 | バーテルズ・マンゴルト・エレクトロニック・ゲーエムベーハー | 可動部から無線電送するための装置 |
| DE19736181B4 (de) * | 1997-08-13 | 2010-09-30 | Siemens Ag | Einrichtung zur Datenübertragung mit einer Transpondereinheit |
| JP2000216724A (ja) * | 1999-01-26 | 2000-08-04 | Mitsubishi Electric Corp | 移動体通信システムおよびその通信方法 |
| US6525648B1 (en) * | 1999-01-29 | 2003-02-25 | Intermec Ip Corp | Radio frequency identification systems and methods for waking up data storage devices for wireless communication |
| DE10000756A1 (de) * | 2000-01-11 | 2001-07-26 | Harting Automotive Gmbh & Co | Datenübertragungsverfahren |
| CA2400022A1 (fr) * | 2000-02-14 | 2001-08-16 | Bart D. Hibbs | Aeronef |
| JP4502291B2 (ja) * | 2000-04-17 | 2010-07-14 | 国立大学法人横浜国立大学 | 移動体通信システム及びこのシステムに使用する基地局 |
| US6674368B2 (en) * | 2000-08-28 | 2004-01-06 | Continental Divide Robotics, Inc. | Automated tracking system |
-
2001
- 2001-10-19 FR FR0113509A patent/FR2831264B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-17 US US10/492,779 patent/US7089157B2/en not_active Expired - Fee Related
- 2002-10-17 WO PCT/FR2002/003558 patent/WO2003033283A1/fr not_active Ceased
- 2002-10-17 JP JP2003536046A patent/JP2005505843A/ja active Pending
- 2002-10-17 EP EP02795326A patent/EP1436154A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03033283A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003033283A1 (fr) | 2003-04-24 |
| FR2831264A1 (fr) | 2003-04-25 |
| FR2831264B1 (fr) | 2003-12-12 |
| US20040243322A1 (en) | 2004-12-02 |
| US7089157B2 (en) | 2006-08-08 |
| JP2005505843A (ja) | 2005-02-24 |
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