• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a device and a method for measuring the quantities of gas, in particular greenhouse gases, released by an animal and more particularly during belching of an animal, such as a ruminant, in particular a bovine. To this end, the invention relates to a device (1) for measuring the quantities of gas released during belching of an animal (2), the device comprising an apparatus for measuring (5) the quantities of gas released by the animal ( 2) and fixing means (4) of said device (1) on the muzzle (3) of the animal (2), characterized in that it comprises a skirt (6) adapted to be positioned above the snout (3) of the animal (2) and comprising means for collecting the gas emerging from the mouth (26) of the animal (2) and for conveying it to the measuring apparatus (5).
    公开号:FR3058225A1
    申请号:FR1660425
    申请日:2016-10-27
    公开日:2018-05-04
    发明作者:Amelie Giger
    申请人:Agrial；
    IPC主号:
    专利说明:

    (54) DEVICE FOR MEASURING THE QUANTITIES OF GAS REJECTED DURING ANIMALS.
    FR 3 058 225 - A1
    The present invention relates to a device and a method for measuring the quantities of gases, in particular greenhouse gases, released by an animal and more particularly during the belching of an animal, such as a ruminant, in particular a bovine.
    To this end, the invention relates to a device (1) for measuring the quantities of gas released during the belching of an animal (2), the device comprising a measuring device (5) of the quantities of gas released by the animal ( 2) and means (4) for fixing said device (1) to the muzzle (3) of the animal (2), characterized in that it comprises a skirt (6) capable of being positioned above the muzzle (3) from the animal (2) and comprising means for collecting the gas emerging through the mouth (26) of the animal (2) and for transporting it to the measuring device (5).
    The present invention relates to a device and a method for measuring the quantities of gases, in particular greenhouse gases, released by an animal and more particularly during the belching of an animal, such as a ruminant, in particular a bovine.
    The release of greenhouse gases into the atmosphere plays an important role in climate change.
    Livestock makes a significant contribution to the release of greenhouse gases, such as carbon dioxide and in particular methane.
    The impact of methane on global warming is 20 to 25 times greater than that of carbon dioxide. Most of the methane emissions are caused by belching from ruminants.
    An average cow emits around 500 to 600 liters of methane per day. Methane is produced by ruminants as a by-product of the fermentation of organic mass in the intestine.
    The cow releases methane through the mouth and nostrils when it eats. Over 90% of the methane released from the cow is actually released from the cow's head when it belches.
    The cow belches when it swallows food head down and grazes. However, it does not belch when it ruminates.
    It is desirable to find a simple way to measure methane emissions eroded by the cow in its production environment without disturbing the animal.
    These measures may then allow the ruminant's food to be adapted so that it releases less methane.
    Patent US5265618 discloses a method and a system for measuring greenhouse gases emitted by cows. A tube of tracer gas (SF6) is swallowed by the animal. The tube is designed to leak and emit tracer gas. A sampling system is attached near the mouth of the animal to collect breath samples via a sampling tube. The emission of greenhouse gases can be determined by the analysis of breath samples, in which the proportions of greenhouse gases and tracer gas in relation to the ambient air are known. However, this method is restrictive for the animal because it is intrusive.
    Document US2015 / 0285783 is also known, a method consisting in measuring the sound emitted by the belching coming out of the cow's mouth. It is thus possible to measure the duration of belching and to estimate the quantities of methane emitted.
    This method is nevertheless indirect and imprecise.
    We also know the system marketed under the brand GreenFeed (CLock Inc., Rapid City, USA) for estimating methane emissions in cattle in different livestock situations, that is to say in building and grazing , while limiting human intervention which could modify the behavior of the animal.
    The method implemented by this system consists in using a food bait to attract the animal into a measuring compartment and in dispensing calibrated food to keep the animal for at least 5 minutes.
    The gases emitted by belching are sampled using a vertical suction system. The repeatability of the measurement is 70% after at least 50 passages of the animal (3 to 4 visits per day over 2 weeks). The precision of the CH4 concentration is approximately 4.5%.
    However, this method is difficult to implement and does not make it possible to measure the methane levels or concentration in the real life conditions of the cow, that is to say in free range. The measurement is also not carried out continuously at the place of production of the animal. In addition, the cost of the GreenFeed system is very high.
    The invention therefore aims to overcome these drawbacks of the prior art by providing a device and a method for measuring the quantities of gases, such as greenhouse gases, released during the belching of an animal, in particular a ruminant, in particular in free range, which is easy to use, non-invasive, precise and effective, and which does not disturb the animal in particular when it moves or eats.
    To this end, the invention relates to a device for measuring the quantities of gas released during the belching of an animal, the device comprising an apparatus for measuring the quantities of gas released by the animal and means for fixing said device to the muzzle of the animal. According to the invention, the device is characterized in that it comprises a skirt capable of being positioned above the muzzle of the animal, the skirt comprising means for collecting the gas emerging through the mouth of the animal and for route it to the meter.
    Advantageously, the skirt has a general shape of an inverted U when it is positioned on the muzzle of the animal.
    According to one embodiment of the invention, the skirt comprises an arched upper part extended by two opposite lateral parts, the arched upper part extending from the vicinity of the animal's eyes to the vicinity of the end of the muzzle , and the two lateral parts extending from the arched upper part to the vicinity of the lower part of the animal's muzzle (2) when the device is positioned on the animal.
    Advantageously, the arcuate upper part of the skirt comprises a housing intended to receive the measuring device and the skirt comprises an orifice opening into the housing (12) and making it possible to channel the gas from a lower zone (14) situated below from the skirt (6) to the housing.
    According to one embodiment of the invention, the housing is delimited by a protective envelope comprising an opening for the introduction of the measuring device.
    Preferably, the protective envelope comprises a strap fixed in the vicinity of the opening of the protective envelope to hold the measuring device in the housing.
    According to one embodiment of the invention, the device comprises a sealing lip positioned on an internal surface of the skirt, the sealing lip running along an internal rim of the skirt positioned in the vicinity of the eyes of the animal, this lip being intended to come to bear on the muzzle of the animal to prevent the passage of gas from the lower zone located below the skirt to an upper zone positioned above the skirt.
    According to one embodiment of the invention, the fixing means comprise a fixing element, such as one or more straps, for fixing the device to the head of the animal, as well as a guide for this fixing element running along the internal edge of the skirt from one end of one side part of the skirt to the other.
    Advantageously, the fastening element comprises a first strap which is housed in the guide and the ends of which are intended to meet so that said strap surrounds the muzzle of the animal and a second strap of which two portions extend perpendicular to the first strap and are intended to be connected to each other at the back of the animal's head.
    According to one embodiment, the measuring device comprises a resistive or infrared sensor measuring the quantities of gas emitted by the animal.
    Advantageously, the device comprises an electronic unit electrically connected to the measuring device for collecting the measurement data recorded by the measuring device. The electronic unit comprises a wireless communication means for transmitting said measurement data to a remote database. The electronic unit is intended to be positioned under the animal's muzzle.
    Advantageously also, the device comprises a gyroscope and / or an inclinometer for determining the inclination of the head of the animal in order to start or stop the measuring device.
    The invention also relates to a method for measuring the quantities of gas released during the belching of an animal by means of a device as defined above.
    According to the invention, the method comprises the following steps:
    - collection of the gas released by the animal in a lower area located under the skirt,
    - channeling of the collected gas from the lower zone to the measuring device, and
    - measurement of the quantities of gas by the measuring device.
    According to a variant, the method comprises a step of detecting the inclination of the head of the animal to trigger or stop the measurement.
    According to another variant, the detection of the inclination of the head being carried out by a gyroscope and / or inclinometer positioned on the device, the measurement of the quantities of gas released is triggered when the head is in a substantially vertical position and stopped when the head is inclined to the vertical.
    The invention thus makes it possible to provide a device and a method for measuring the quantities of greenhouse gases released during the belching of a ruminant in free range, so as not to disturb the animal in its place of life.
    The device has an ergonomic shape adapted to the shape of the cow's muzzle.
    It does not interfere with the animal in the place of production (pasture) especially when it grazes on grass.
    Its shape is also adapted so as not to interfere with the animal's vision.
    The device is adapted to usage constraints. Indeed, there are zones of shocks and contacts around the head of the ruminant.
    These contact areas are generated when using roller brushes for massaging the ruminant, friction in the living environment (grass, mud, water) and impacts with other ruminants, for example.
    The device and method of the invention thus make it possible to simply measure the quantities or rate of methane (CH4) emitted by a ruminant in real conditions.
    This method is non-intrusive and effective because the measurement is only carried out during the emission of methane when the ruminant is eating. It is thus possible to save the battery of the measuring device and to increase the duration of the experiment.
    It helps to better understand the rate of methane released when the ruminant is in its living environment, which is essential in order to be able to adapt its food to reduce the emission of methane.
    The measurements made can then be correlated with the “Green Feed ™” system, for example.
    The device can be used to measure other gases such as CO2, for example. It can be used for cows, beef, bull, goats, sheep, for example
    The characteristics of the invention will be described in more detail with reference to the accompanying drawings in which:
    - the Lig. 1 schematically represents a device for measuring the quantities of gas released during the belching of an animal, placed on the muzzle of a ruminant and seen in profile, according to an embodiment of the invention;
    - the Lig. 2 schematically represents a view showing the underside of the device according to the invention;
    - Ligs. 3 and 4 schematically represent a front view of a ruminant on which is fixed a device according to the invention;
    - Ligs. 5 and 6 schematically represent side views of a ruminant on which is fixed a device according to the invention, when the ruminant lowers the head (Lig. 5) and raises it (Lig. 6);
    FIG. 1 schematically represents a device 1 placed on the muzzle 3 of a ruminant 2 according to a possible embodiment.
    The device 1 is fixed to the muzzle 3 of the ruminant 2 by fixing means 4.
    The device 1 comprises a measuring device 5 for measuring the quantities of gas, such as methane, released by the ruminant 2.
    According to the invention, the device 1 comprises a skirt 6 intended to be positioned above the muzzle 3 of the ruminant 2 to collect the gas emerging through the mouth 26 of the ruminant 2 during its belching.
    The measuring device 5 is arranged on the skirt 6.
    The skirt 6 has a general shape of an inverted U when it is positioned on the muzzle 3 of the ruminant 2. In other words, the skirt 6 has an arched or arched shape.
    The skirt 6 is made of a flexible and deformable material to more easily match the shape of the muzzle 3.
    The flexible material can be made of polymer such as rubber, flexible polyurethane, resin, for example.
    The skirt 6 comprises an arched upper part 7 extended by two opposite side parts 8, 8 ’(Ligs. 1 and 2).
    The arched upper part 7 extends from the vicinity of the eyes 9 of the ruminant 2 to the vicinity of the end 10 of the muzzle 3 of the ruminant 2 when the device 1 is positioned on the ruminant 2.
    The arched upper part 7 can stop before the end 10 of the muzzle 3 or extend after it.
    The two lateral parts 8, 8 ′ extend from the arched upper part 7 in the direction of the lower part 11 of the muzzle 3 of the ruminant 2 when the device 1 is positioned on the ruminant 2. The lower part 11 faces the groove .
    The two lateral parts 8, 8 ′ can extend to the lower part 11 of the muzzle 3 or below the latter.
    The skirt 6 surrounds only the top and the sides of the muzzle 3 while being open in front of the nasals and the mouth 26 of the ruminant 2 and under the muzzle 3. The lower part 11 of the muzzle 3 of the ruminant 2 is not surrounded by the skirt 6, which allows the animal to graze on the grass without being embarrassed.
    The arcuate upper part 7 of the skirt 6 comprises a housing 12 intended to receive the measuring device 5. The housing 12 protrudes from the surface of the arcuate upper part 7 of the skirt 6.
    The skirt 6 comprises an orifice 13, as shown in FIG. 2, opening into the housing 12 and allowing the passage of gas from a lower zone 14 located below the skirt 6 towards the housing 12 and the measuring device 5 .
    As a variant, the skirt 6 may include several orifices 13.
    The housing 12 comprises a protective envelope 15 comprising an opening for the insertion of the measuring device 5.
    The housing 12 is preferably integrated into the skirt 6 and can be obtained by molding at the same time as the skirt 6. The protective envelope 15 is advantageously made of the same material as that of the skirt 6.
    When the device 1 is positioned on the muzzle 3 of the ruminant 2, the housing 12 is placed on the muzzle 3, between the eyes 9 of the ruminant 2. The housing 12 is preferably centered relative to the two eyes 9 (Fig. 1) .
    An opening 16 for the installation of the measuring device 5 in the housing is provided and is turned towards the eyes 9.
    The housing 12 has for example an elongated shape and extends in a direction parallel to the muzzle 3.
    The opening 16 is at the limit of the internal rim 20 of the skirt 6, in this example. Opening 16 could be set back.
    The housing 12 and the orifice 13 are centered relative to the two lateral parts 8, 8 ’of the skirt 6.
    Methane is lighter than air and rises to 8m / sec. It behaves more or less like a bubble in the air. When ruminant 2 grazes grass, it has its head down. The methane therefore rises from the mouth 26 or the nostrils of the ruminant 2 to be trapped by the skirt 6, in the lower zone 14.
    The methane collected then rises in the housing 12 through the orifice 13 to be measured by the measuring device 5 placed in the housing 12. The methane collected is in fact channeled through the orifice 13.
    The measuring device 5 comprises, for example, a resistive or infrared sensor (not visible in the figures) measuring the quantities of methane emitted by the ruminant.
    Advantageously, the methane sensor or the sensitive element of the measuring device 5 is positioned facing the orifice 13.
    This position of the housing 12 just above the mouth 26 of the ruminant 2 is therefore advantageous since it allows the measuring device 5 to capture methane directly and quickly.
    The measuring device 5 is held in the housing 12 by means of a strap 17, for example of the type having respective first ends fixed on either side of the opening 16 and respective second ends connected to one to the other by means of a loop. All or part of the strap 17 can be elastic.
    The device 1 comprises a sealing lip 18 positioned on an internal surface 19 of the skirt 6, as shown in particular in Figures 2 and 4.
    The sealing lip 18 runs along the proximity of the internal rim 20 of the skirt 6 at least on the part of this rim 20 which is positioned in the vicinity of the eyes 9 of the ruminant 2 when the device 1 is fixed on the animal. The sealing lip 18 is positioned a few centimeters from the internal rim 20 between the latter and the orifice 13.
    The sealing lip 18 is intended to come to bear on the muzzle 3 of the ruminant 2 to prevent the leakage of gas from the lower zone 14 located below the skirt 6 towards the outside of the skirt 6 and beyond the internal rim 20.
    The sealing lip 18 comprises a bearing surface 32 which comes into contact with the muzzle 3 of the ruminant 2 and follows the surface of the muzzle 3.
    The sealing lip 18 is made of a flexible material which can be the same as that of the skirt 6. It can be obtained during the molding of the device 1.
    The sealing lip 18 may have a regular shape.
    According to another possible embodiment, the sealing lip 18 can have a wavy shape (in the shape of a wave) to match the irregular shape of the muzzle 3, as shown in FIG. 4.
    The sealing lip 18 then comprises a central zone 45 of small width in contact with the top of the muzzle 3 of the ruminant 2. The sealing lip 18 in the form of a wave also comprises two lateral zones 46, 46 ′ arranged on the side and on the other side of the central zone 45 matching the hollows 47, 47 ′ formed on the muzzle 3.
    The device 1 comprises a clamping means 22 for clamping the sealing lip 18 against the muzzle 3 of the ruminant 2, as shown in FIG. 5.
    The clamping means 22 is intended to be positioned under the muzzle 3 of the ruminant 2 and to press the sealing lip 18 against the muzzle 3.
    For example, the clamping means 22 may comprise two elastic bands 33, 33 'fitting into holes, for example 34, arranged in the lateral parts 8, 8' of the skirt 6.
    Once tightened, the two elastic bands 33 can also be blocked by knots, or the like, abutting against the external surface of the lateral parts 8 surrounding the orifices 34.
    The fastening means 4 comprise a guide 35, running along the internal rim 20 of the skirt 6 from one end of a side part (8) of the skirt (6) to the other (8 '), as shown in the Figures 1 and 2, and allowing the passage, maintenance and guidance of a fastening element 25 of the device 1 on the animal.
    The guide 35 has a mechanical strength greater than that of the skirt 6. H is composed of walls such as the walls 350, 351, 352 and 353.
    The fastening means 4 thus comprise a fastening element 25, which comprises a first strap 251 which is housed in the guide 35 and passes under the walls 351, 352 of the guide 35. Its ends are intended to join so that the strap 251 surrounds the muzzle 3 of the animal passing under the throat. A second strap is also provided, two portions 252, 254 of which extend perpendicular to the first strap 251 and are connected to each other at the back of the animal's head, for example behind the ears or the horns. The strap portions 252, 254 and the ends of the strap 251 are connected by loops such as the loop 253. Of course, the length of the straps is adjustable. Advantageously, the straps can be of the halter type.
    The device 1 also comprises an electronic unit 28 electrically connected by a wire 281 to the measuring device 5 for collecting the measurement data recorded by the measuring device 5, as shown in FIGS. 1, 5 and 6.
    The electronic unit 28 includes a wireless communication means for transmitting the measurement data to a remote database.
    Wireless communication can be done by Bluetooth, infrared or electromagnetic waves.
    The electronic unit 28 is positioned under the muzzle 3 of the ruminant 2. H is thus protected from shocks when the ruminants collide. It is attached by means of a strap 254, which can be connected to strap 252.
    The measuring device 5 transmits the measurement data to a remote base which can be a computer, a tablet or a mobile phone via a specific application.
    The device 1 comprises a gyroscope and / or an inclinometer 29 for determining the inclination of the head of the ruminant 2 in order to start or stop the measuring device 5.
    The gyroscope and / or the inclinometer 29 is preferably integrated into the measuring device 5.
    The invention also relates to a method for measuring the quantities of greenhouse gases released during the belching of ruminant 2 by means of the device 1 as defined above.
    The method comprises a step of collecting the gas rejected by the ruminant 2 in a lower zone 14 situated under the skirt 6, a step of transferring or channeling the collected greenhouse gas towards the measuring device 5 positioned in an upper zone located above the skirt 6 and a step of measuring the quantities of gas by the measuring device 5.
    The method also includes a step of detecting the inclination of the head 27 of the ruminant 2 to start or stop the measurement.
    The inclination of the head 27 is detected by the gyroscope and / or the inclinometer 29.
    The measurement of the quantities of gas is triggered when the head 27 of the ruminant 2 is in a substantially vertical position relative to the ground (Fig. 5) and stopped when the head 27 is no longer in a substantially vertical position (Fig. 6), c that is to say is in a substantially horizontal position relative to the ground.
    More specifically, the muzzle 3 of the ruminant 2 extending in a direction B, the measurement is triggered when the direction B of the muzzle 3 makes an angle a with respect to the vertical direction A on the ground S, preferably between 0 and 45 ° (Fig. 5).
    The measurement is not started or stopped when the angle a is greater than 45 ° (Fig. 6).
    Thus, the amounts of methane are only measured when the ruminant 2 tilts or tilts the head 27 downwards to graze on grass. In fact, methane is only emitted when the animal grazes. This increases the battery life of the measuring device 5 and avoids unnecessarily increasing the duration of the measurements.
    Alternatively, when the ruminant 2 with the head 27 lowered, the measurement is discontinuous in order to save the battery.
    The acquisition process can include measurement periods followed by rest periods and warm-up times of the measuring device 5.
    Alternatively, the sampling frequency can be programmed.
    During the measurement step, the measuring device 5 records the duration and the date of the measurements.
    These data are stored in a memory provided in the measuring device 5 or the electronic unit 28. They are transmitted to the database when the memory is full or at programmed intervals.
    The measuring device 5 can also measure the temperature and 5 the hygrometry.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1. Device (1) for measuring the quantities of gas released during the belching of an animal (2), the device comprising a measuring device (5) of the quantities of gas released by the animal (2) and means for fixing (4) of said device (1) on the muzzle (3) of the animal (2), characterized in that it comprises:
    a skirt (6) capable of being positioned above the muzzle (3) of the animal (2) and comprising means for collecting the gas emerging through the mouth (26) of the animal (2) and for route to the measuring device (5).
    [2" id="c-fr-0002]
    2. Device (1) according to claim 1, characterized in that the skirt (6) has a general shape of an inverted U when it is positioned on the muzzle (3) of the animal (2).
    [3" id="c-fr-0003]
    3. Device (1) according to any one of claims 1 or 2, characterized in that the skirt (6) comprises an arcuate upper part (7) extended by two opposite side parts (8), the arcuate upper part (7 ) extending from the vicinity of the eyes (9) of the animal (2) to the vicinity of the end (10) of the muzzle (3) of the ruminant (2) and the two lateral parts (8, 8 ' ) extending from the arched upper part (7) to the vicinity of the lower part (11) of the muzzle (3) of the animal (2) when the device (1) is positioned on the animal (2).
    [4" id="c-fr-0004]
    4. Device (1) according to claim 3, characterized in that the arcuate upper part (7) of the skirt (6) comprises a housing (12) intended to receive the measuring device (5), the skirt (6 ) comprising an orifice (13) opening into the housing (12) and making it possible to channel the gas from a lower zone (14) situated below the skirt (6) towards the housing (12).
    [5" id="c-fr-0005]
    5. Device (1) according to claim 4, characterized in that the housing (12) is delimited by a protective envelope (15) comprising an opening (16) for the introduction of the measuring device (5).
    [6" id="c-fr-0006]
    6. Device (1) according to claim 5, characterized in that the protective envelope (15) comprises a strap (17) fixed in the vicinity of the opening (16) of the protective envelope (15) to maintain the measuring device (5) in the housing (12).
    [7" id="c-fr-0007]
    7. Device (1) according to any one of claims 1 to 6, characterized in that it comprises a sealing lip (18) positioned on an internal surface (19) of the skirt (6), the lip d seal (18) along an internal rim (20) of the skirt (6) positioned in the vicinity of the eyes (9) of the animal (2), this lip being intended to come to bear on the muzzle (3) of the animal (2) to prevent the passage of gas from the lower zone (14) located below the skirt (6) to an upper zone positioned above the skirt (6).
    [8" id="c-fr-0008]
    8. Device (1) according to any one of claims 1 to 7, characterized in that the fixing means (4) comprise a fixing element (25), such as one or more straps (251, 252, 253 ), to fix the device (1) on the head of the animal (2), as well as a guide (35), for this fixing element (25), along the internal rim (20) of the skirt (6 ) from one end of a side part (8) of the skirt (6) to the other (8 ').
    [9" id="c-fr-0009]
    9. Device (1) according to claim 8, characterized in that the fixing element (25) comprises a first strap (251) which is housed in the guide (35) and whose ends are intended to join so said strap (251) surrounds the muzzle (3) of the animal (2) and a second strap, two portions (252, 254) of which extend perpendicular to the first strap (251) and are intended to be connected to each other at the back of the animal's head (2).
    [10" id="c-fr-0010]
    10. Device (1) according to any one of claims 1 to 9, characterized in that the measuring device (5) comprises a resistive or infrared sensor measuring the quantities of gas emitted by the animal (2).
    [11" id="c-fr-0011]
    11. Device (1) according to any one of claims 1 to 10, characterized in that it comprises an electronic unit (28) electrically connected to the measuring device (5) for collecting the measurement data recorded by the measuring device (5), the electronic unit (28) comprising a wireless communication means for transmitting said measurement data to a remote database, said electronic unit (28) being intended to be positioned under the muzzle (3 ) of the animal (2).
    [12" id="c-fr-0012]
    12. Device (1) according to any one of claims 1 to 11, characterized in that it comprises a gyroscope and / or an inclinometer (29) for determining the inclination of the head (27) of the animal ( 2) in order to trigger or stop the measuring device (5).
    [13" id="c-fr-0013]
    13. Method for measuring the quantities of gas released during the belching of an animal (2) by means of a device (1) as defined according to any one of claims 1 to 12, said device (1) being intended to be fixed on the muzzle (3) of the animal (2) by fixing means (4) and comprising a measuring device (5)
    5 to measure the quantities of gas released by the animal (2) and a skirt (6) intended to be positioned above the muzzle (3) of the animal (2) to collect the rejected by the mouth (26) , the measuring device (5) being disposed on the skirt (6), said method being characterized in that it comprises the following steps:
    10 - collection of the gas released by the animal (2) in a lower zone (14) located under the skirt (6),
    - channeling of the collected gas from the lower zone (14) to the measuring device (5), and
    - measurement of the quantities of gas by the measuring device (5).
    [14" id="c-fr-0014]
    14. Method according to claim 13, characterized in that it comprises a step of detecting the inclination of the head (27) of the animal (2) to trigger or stop the measurement.
    20
    [0015]
    15. Method according to claim 14, characterized in that, the detection of the inclination of the head (27) being carried out by a gyroscope and / or inclinometer positioned on the device (1), the measurement of the quantities of gas is triggered when the head (27) is in a substantially vertical position and stopped when the head (27) is inclined relative to the vertical.
    8 ’
    PL. 2/3
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    公开号 | 公开日
    EP3315965B1|2019-05-15|
    FR3058225B1|2020-05-29|
    EP3315965A1|2018-05-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5265618A|1992-11-13|1993-11-30|University Corporation For Atmospheric Research|System for measuring metabolic gas emissions from animals|
    DE19960257C1|1999-11-16|2001-08-16|Cortex Biophysik Gmbh|Ergospirometry system for animals, especially horses, camels or the like|
    US20150285783A1|2010-05-07|2015-10-08|Lely Patent N.V.|Method and device for determining greenhouse gas, in particular methane, emitted by a ruminant, in particular a diary animal|
    WO2021123726A1|2019-12-20|2021-06-24|Zelp Ltd|Gas monitoring device|
    GB2590640A|2019-12-23|2021-07-07|Zelp Ltd|Gas monitoring device|
    WO2022023367A1|2020-07-29|2022-02-03|Modus Iot Limited|Determination of methane emitted by ruminants|
    法律状态:
    2017-10-27| PLFP| Fee payment|Year of fee payment: 2 |
    2018-05-04| PLSC| Publication of the preliminary search report|Effective date: 20180504 |
    2018-10-25| PLFP| Fee payment|Year of fee payment: 3 |
    2019-10-24| PLFP| Fee payment|Year of fee payment: 4 |
    2020-10-27| PLFP| Fee payment|Year of fee payment: 5 |
    2021-10-25| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1660425|2016-10-27|
    FR1660425A|FR3058225B1|2016-10-27|2016-10-27|DEVICE FOR MEASURING THE QUANTITIES OF GAS REJECTED DURING ERUCTATIONS OF AN ANIMAL|FR1660425A| FR3058225B1|2016-10-27|2016-10-27|DEVICE FOR MEASURING THE QUANTITIES OF GAS REJECTED DURING ERUCTATIONS OF AN ANIMAL|
    EP17198626.8A| EP3315965B1|2016-10-27|2017-10-26|Device for measuring the amounts of gases ejected when an animal belches|
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