EP3164344A1 - Device and method for retrieving objects, in particular waste, using sound - Google Patents
Device and method for retrieving objects, in particular waste, using soundInfo
- Publication number
- EP3164344A1 EP3164344A1 EP15734148.8A EP15734148A EP3164344A1 EP 3164344 A1 EP3164344 A1 EP 3164344A1 EP 15734148 A EP15734148 A EP 15734148A EP 3164344 A1 EP3164344 A1 EP 3164344A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- component
- sound signal
- objects
- characterization
- 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.)
- Granted
Links
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- 238000000034 method Methods 0.000 title claims description 25
- 230000005236 sound signal Effects 0.000 claims abstract description 62
- 238000012512 characterization method Methods 0.000 claims abstract description 50
- 230000003993 interaction Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 43
- 238000011084 recovery Methods 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 230000035939 shock Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 5
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 229920005372 Plexiglas® Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002618 waking effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/10—Refuse receptacles; Accessories therefor with refuse filling means, e.g. air-locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/138—Identification means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/144—Level detecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/152—Material detecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2240/00—Types of refuse collected
- B65F2240/112—Bottles
Definitions
- the invention relates to the field of the treatment of objects and more particularly waste.
- the invention more particularly relates to an object recovery device for characterizing an object inserted into a container of said recovery device.
- the document FR2905880 describes an object sorting device comprising a visual recognition station of an object by video means, an identification station of the composition of the object using a spectrometer, a differentiation station of the object. metals constituting the object using an inductive sensor, and a station for measuring the weight of the object.
- the use of many sensors necessary for the various positions induces a prohibitive cost of the sorting device.
- the object of the present invention is to propose a solution that overcomes all or part of the disadvantages listed above.
- This object is aimed in particular by means of a device for recovering objects, in particular waste, comprising a container in which said objects are intended to be inserted and a characterization module of an object inserted in the container, said device comprising an acoustic system configured to record a sound signal representative of the interaction of the object inserted with the recovery device said acoustic system being connected to said characterization module so that the sound signal participates in the characterization of said inserted object.
- the device comprises a lid mounted on the container and whose opening allows the introduction of the object to be inserted into the container, said acoustic system being configured to record a first component of the sound signal representative of at least an interaction of the object to be inserted with the lid and / or a second component of the sound signal representative of at least one return of the lid in a closed position after insertion of the corresponding object into the container and / or a third component of the sound signal representative of at least one shock of the object inserted into the container at the end of its fall into said container.
- the characterization module is configured to study the first and / or second and / or third components of the sound signal to characterize said inserted object.
- the acoustic system comprises a microphone, in particular of Electret or digital MEMS type.
- the characterization module comprises an element for determining a material of the inserted object configured so as to exploit the sound signal.
- the material determination element may comprise a setting element, at a predetermined cut-off frequency value, of a ratio of the low-frequency energy of said first component to a total energy of said first component, and a report comparing element established with a predetermined ratio threshold value.
- the characterization module may include an element for estimating the size and / or the weight of the inserted object using said sound signal.
- the device comprises a payment module, in particular financial module, of a user having inserted the object into the container, said payment module being connected to the characterization module so as to use at least one piece of information relating to the characterization of said inserted object to evaluate compensation.
- the device may comprise a module for determining the filling of the container, in particular configured to use at least one data from the acoustic system and / or the characterization module.
- the invention also relates to a method for recovering objects, in particular waste, in a recovery device provided with a container, said method comprising a step of inserting an object into the container and a characterization step the inserted object having a step of studying a sound signal resulting from the interaction of the inserted object with said recovery device.
- the study step comprises the use of at least one of the following components of the sound signal chosen from:
- a second component representative of at least one return of the cover in a closed position after insertion of the corresponding object into the container
- a third component representative of at least one shock of the object inserted in the container at the end of a fall of said object inserted in the container.
- the study step can comprise at least one of the following steps: a determination of the material of the inserted object comprising: a determination, starting from the first component of the sound signal and at a predetermined cutoff frequency, a ratio of the low frequency energy of said first component to a total energy of said first component, and o a comparison of the determined ratio with a predetermined ratio threshold value, an estimate of the size of the inserted object comprising: a determination from the first and second components of a duration between a moment of first contact of the object inserted with the lid and a closing instant of the operculum after insertion of the object in the container, and o a comparison of the determined duration with at least one threshold of duration,
- a characterization of the material of the inserted object comprising, from the third component of the sound signal, a determination of dominant frequencies and / or of a multi-band energy and / or of an energy ratio,
- the step of characterizing the inserted object output the material constituting the inserted object and / or the size of the inserted object and / or the weight of the inserted object.
- the method may comprise a step of estimating the filling of the container using at least one acoustic data.
- the step of estimating the filling comprises at least one of the following steps: a determination, based on said at least one acoustic data, of a number of average rebounds made in the container by the inserted objects,
- the method may comprise a step of valuing the inserted object in which at least one data item from the characterization of the inserted object is used to credit an account, in particular a user account belonging to the person who has inserted the object within the container.
- FIG. 1 represents a recovery device according to a particular embodiment
- FIG. 2 is a diagram showing different steps of an object recovery process
- FIG. 3 represents the amplitude as a function of time of a sound signal coming from the acoustic system
- FIG. 4 illustrates a ratio of the energy of the first component as a function of cutoff frequency values
- FIG. 5 illustrates the amplitude of three third components respectively associated with a pile of newspapers, a pile of magazines and a directory according to time
- FIG. 6 illustrates the energy of three third components respectively associated with a pile of newspapers, a pile of magazines and a directory according to frame numbers
- FIG. 7 illustrates the average duration of a fall of a small bottle in the container depending on the filling percentage of the container.
- the device and method described hereinafter differ from the prior art in that it is proposed to use acoustics to characterize a recovered object. Such use makes it possible in particular to reduce the costs by using a single or several microphones to perform all or part of the operations referred to in the positions of the prior art. This also results in a compactness of an associated characterization module of the object.
- the device 1 comprises an acoustic system 4 configured to record a sound signal representative of the interaction of the object inserted with the recovery device 1 (in particular the container 2 and / or a lid 5 mounted on the container 2).
- This acoustic system 4 is connected to said characterization module 3 so that said sound signal participates in the characterization of said inserted object.
- the characterization module 3 comprises the software and / or hardware means for analyzing the sound signal from the acoustic system 4 in order to characterize the inserted object.
- the characterization module 3 may comprise a microcontroller or a DSP (Digital Signal Processor) processor, and so on.
- DSP Digital Signal Processor
- the acoustic system 4 comprises a microphone, in particular of Electret type or MEMS (Microsystem electromechanical) digital.
- the acoustic system 4 comprises a single microphone, this to reduce integration costs.
- the acoustic system 4 may include an analog to digital converter (also known by the acronym ADC in the field) connected to the microphone so that the sound signal is a digital signal, a digital signal amplifier, and a high pass filter applied to the sound signal (in its digital version) after amplification. Therefore, the sound signal studied by the characterization module 3 to characterize the inserted object is that at the output of the high pass filter.
- the digitization of the sound signal coming from an Electret microphone is done, for example, using an ADC Alternately, it is also possible that the microphone is a digital MEMS and in this case the sound signal is directly exploitable.
- the latter comprises (FIG. 2) a step insertion E1 of an object in the container 2 and a characterization step E2 of the inserted object, in particular implemented by the characterization module 3.
- the characterization step E2 of the inserted object comprises a step of E2-1 study of a sound signal resulting from the interaction of the inserted object with the recovery device (including the container 2 and / or the lid 5 mounted on the container 2). It is then understood that, implicitly, the method comprises, before the study step E2-1, a step of acquisition of the sound signal to be studied, in particular by the acoustic system 4.
- characterizing the inserted object Is meant for example to determine the material constituting it (glass, paper, plastic, metal, etc.) and / or its size and / or volume and / or weight. In the context of the sorting of objects, “characterizing the inserted object” can, for example, make it possible to determine whether the object is in a particular material, or not, (in the case of sorting the glass in the example of FIG. 1) compatible with the destination of use of the container 2.
- the device 1 comprises a cap 5 mounted on the container 2 and whose opening allows the introduction of the object to be inserted in the container 2.
- the acoustic system 4 is then configured to record a first component of the signal sound representative of at least one interaction of the object to be inserted with the cover 5 and / or a second component of the sound signal representative of at least one return of the cover 5 in a closed position after the insertion of the corresponding object (called "inserted object") into the container 2 (ie after the interaction of the object inserted with said cap 5) and / or a third component of the sound signal representative of at least one shock of the object inserted into the container 2 at the end of its fall into said container 2.
- Said characterization module 3 is advantageously configured so as to study the first and / or second and / or third components of the sound signal to characterize said inserted object.
- the cap 5 is a member configured to vary between a closed position and an open position.
- the cap 5 is preferably configured so as to always be biased towards its closed position, in particular by a return member, the passage from the closed position to the open position being carried out when an object is intentionally inserted into the container 2 by a user who solicits the object to be inserted against the lid 5 so as to counteract the forces maintaining said lid 5 in its closed position.
- the seal 5 closes a hole formed in the container 2 and allowing the insertion of objects into said container 2.
- the study step E2-1 can comprise the use of at least one of the following components of the sound signal chosen from: a first representative component of at least one interaction of the object to be inserted with the cover 5 of the recovery device mounted on the container 2, and / or
- the first component may include a sound associated with the point contact of the object with the lid 5 before opening of the lid 5 and / or a sound associated with the friction of the object with the lid 5 during the insertion of the object into the container 2.
- the second component may incorporate a sound associated with the return of the cap 5 in its closed position.
- the third component may preferentially incorporate a sound relative to the impact of the inserted object when it reaches the bottom of the container 2 formed by a part of the container 2 itself or by objects already present in the container 2.
- FIG. a sound signal from the acoustic system 4 during an insertion phase of an object in the container 2.
- This signal comprises the first component C1, the second component C2 and the third component C3.
- These first, second and third components are here successive. Thanks to the study of the sound signal, it is possible to deduce from the first component C1 a first time instant T c representative of the first contact of the object with the operculum 5, of the second component C2 a second time instant T R representative of the return of the cap 5 in a closed position.
- T C h representing the time instant of the end of the fall including the impact at the end of the fall of the inserted object.
- AT C h represents a time duration of falling of the object inserted in the container 2 taking into account the time between T c and T C h-
- the sound signal S (t) may be of type:
- C1 an impulsive type contact signal starting at time T c
- C2 an impulsive type of return signal starting at time T R
- C3 a signal after the fall and broadband type starting at T C h and B represents the additive environmental noise. This noise is of low amplitude inside the container which is well soundproofed.
- the duration of the first and second components C1, C2 varies between 5ms and 10ms.
- the third component C3 in these conditions it can last between 25ms and 120ms, this spread in time is due to possible rebounds of the inserted object.
- the characterization module 3 may include an element for determining a material of the inserted object configured to exploit the sound signal, in particular the first component C1 of the sound signal.
- the container 2 is either a glass container or a paper container.
- the material determining element can, from the sound signal, determine whether the material of the inserted object is, if any, glass or paper, or if it is a unauthorized material in the container 2.
- the cap 5 is present, and the characterization module 3 makes it possible to determine the material of the inserted object (via the material determination module) by using the first component, which then includes a sound associated with the contact of the object. opercule 5 with the inserted object and / or a sound associated with the friction of the object with the cover 5 before the fall of said object in the container 2.
- the skilled person will choose the cap 5 according to its ability to discriminate more easily objects of material that it is desired to be stored in the container 2.
- the seal 5 referred to above may contain plexiglass or metal.
- the lid 5 will preferably be in plexiglass for a container 2 for storing plastic objects, and metal for a container 2 for storing metal objects (cans, tin can, etc.). More generally, the container 2 is intended to receive objects of a particular material, and the choice of the material constituting the cap 5 will be made according to the particular material.
- the lid in the case of glass the lid will preferably be metal, and in the case of paper the seal will preferably also metal.
- the seal In order to verify / determine whether the material is the correct one, it is possible to extract from the first component C1 data that makes it possible to calculate the following ratio:
- RCBT ECB ECT the energy ratio (between 0 and 1) with E C B the low frequency energy of said first component and E CT the total energy of said first component.
- FIG. 4 illustrates the behavior of the first component C1 in the context where the cover 5 is made of metal for objects made of different materials (glass, stone, aluminum, wood, plastic).
- FIG. 4 comprises a curve of the ratio R C BT as a function of the contact cutoff frequency F C c of the first component for each of the listed materials.
- curve 1 is associated with glass objects (small and large bottles, bottle of wine, bottle of cider, bottle of champagne, jars)
- curve 2 is associated with stone objects (small and large pebble, pottery , pebbles, bricks, etc.)
- curve 3 is associated with wooden objects (dry wood, wet wood, etc.)
- curve 4 is associated with aluminum objects (can, boxes of
- the material determination element may comprise an establishment element, at a predetermined cut-off frequency value, of a ratio of the low-frequency energy of said first component C1 to a total energy of said first component. C1, and a ratio comparison element established with a predetermined ratio threshold value (in the glass example, if the set value of the ratio is below the predetermined ratio threshold value then the material of the inserted object is considered to be glass).
- a predetermined ratio threshold value in the glass example, if the set value of the ratio is below the predetermined ratio threshold value then the material of the inserted object is considered to be glass.
- the predetermined value of cutoff frequency and the predetermined ratio threshold value are a function of a calibration of the device, in particular depending on the type of cap and the positioning of the acoustic system, the skilled person will therefore be able to choose these thresholds using the teachings of the present description.
- the low frequency energy of the ratio is that obtained by filtering at the predetermined cutoff frequency.
- the same principle works to discriminate paper.
- the energy is concentrated at 80% in the frequency band below 1 kHZ.
- the ratio R C BT established is greater than 0.8 for a frequency F C c between 500Hz and 1000Hz.
- the lid is metal.
- it is used a low pass filter.
- the study step E2-1 may comprise a step of a determination of the inserted object material comprising: a determination, starting from the first component of the sound signal and at a frequency of predetermined cut-off, a ratio of the low-frequency energy of said first component to a total energy of said first component, and a comparison of the determined ratio with a predetermined ratio threshold value. Then let us proceed to the exploitation of the second component C2 . The latter can be used to determine the size of the inserted object.
- the characterization module 3 can calculate a time duration between the beginning of the first component C1 (instant T c ) and the beginning of the second component C2 (instant T R ).
- Discrimination between a small inserted object and a large inserted object can be done by comparing, for each inserted object, the difference between T c and T R at a predetermined threshold of discrimination of the size of the object (below this threshold it is a small object and above this threshold it is a large object). Determining the size of the inserted object may also be useful in the context of a monitoring of the filling state of the container 2, or in the context of a payment of the user of the container 2 according to the objects inserted.
- the characterization module 3 may include an element for estimating the size of the inserted object using said sound signal.
- this size estimation element uses the first component C1 of the sound signal and the second component C2 of the sound signal by determining from these the interaction time of the object inserted with the cover 5 during in particular, this element for estimating the size of the object inserted, and therefore by extension a step of estimating the size of the inserted object of the process (belonging in particular to the study step E2-1), can process said sound signal so as to determine, from the first and second components, the duration between T c (a moment of first contact of the object inserted with the cover 5) and T R (a closing instant of the operculum 5 after insertion of the object in the container 2).
- the longer the duration between T c and T R will be shorter the object will be small (and therefore light depending on the identified material).
- a step of comparing the determined duration with a duration threshold can then suffice to estimate the size of the inserted object.
- the analysis of different drops of glass bottles has shown that the average time between T c and T R for a large bottle is 40% higher than for a small bottle. According to an improvement, the determined size can be used to estimate the weight of an inserted object when the material constituting it is known.
- the third component can be used in different ways.
- the sound associated with the shock of the object inserted in the container 2 at the end of its fall in the latter allows, for example, to validate that the object has finally been inserted into the container 2, thus validating the characterization.
- the third component C3 makes it possible to determine a filling state of the container 2.
- the third component C3 can be used to determine the weight of the inserted object, especially when said inserted object is paper, and therefore the container 2 is a paper storage container 2.
- FIG. 5 gives the amplitude of the third component C3 as a function of time for successively a pile of newspapers, a pile of magazines, and a directory presenting different weights but a same volume / same size. It is then understood that it is possible to estimate a weight of the inserted object by analyzing the amplitude of the third component C3 and / or the duration of the third component C3.
- the size or volume of the object inserted can be estimated for example from the study of the first and second components C1, C2 as described above.
- the size will first be estimated in order to estimate a weight, and for the paper the energy of the signal will be estimated with a calibration adapted to estimate a weight.
- the analysis of the energy of the third component C3 shows that 90% of this energy for a pile of discarded paper is concentrated in the frequency band below 2kHz.
- the energy of the third component C3 can therefore be used to estimate the weight of a pile of discarded paper as shown in Figure 6.
- the latter may, alternatively or in combination, be divided into weighted frames by a weighting function.
- These slippery fields overlap to better smooth estimates.
- This decomposition in frames is adapted to the real-time processing, and makes it possible to follow the variability and non-stationarity of the sound signal over time. In this sense, it is possible to establish a curve representing the evolution of the energy of the third component C3 as a function of the number of the associated frame as illustrated in FIG. 6.
- FIG. C3 components for successive insertion of a pile of newspapers, a pile of magazines and a directory of the same volume but different weights.
- a smoothing in frames of the third component C3 one realizes that the study of the associated energy also makes it possible to estimate a weight. It is also possible to extract the following data from the third component C3:
- N re the number of rebounds of the object at the end of its fall during its interaction with the bottom of the container 2, or with objects already contained in the container 2.
- the amplitude of the signal is low , and a threshold on the energy makes it possible to estimate N re
- a step of characterizing a material of the inserted object can comprise, starting from the third component C3 of the sound signal, a determination of dominant frequencies and / or of a multiband energy and / or a energy ratio.
- These extracted data being linked to the third component C3, they can also be used to determine the filling of the container 2, to check if the insertion has been made, or to determine the weight of the inserted object.
- the sound signal of a glass object it will be possible to classify the inserted object in a low level (the object breaks often without rebound in the container, the recorded signal is compact), medium level (the object often bounces several times in the container and breaks), high level (the object often bounces several times without breaking it in the container).
- the skilled person is fully able to analyze the sound signal to classify the fall of the object in the container 2 in one of these three levels.
- the characterization of an inserted object will not be achieved by simple comparison of the sound signal studied with pre-recorded standard sound signals, but rather by extraction, from the sound signal. , empirical data (extracted data and / or levels described above) for characterizing said object for example by comparing the empirical data extracted from the sound signal to data from a calibration.
- the characterization of an inserted object could consist of determining the material constituting the inserted object and / or its size and / or its weight.
- the step of characterizing the inserted object and / or the characterization module 3 output: the material constituting the inserted object and / or the size of the inserted object and / or the weight of the inserted object. inserted object.
- the invention is not limited to this type of objects.
- the acoustics may very well also be used to estimate the volume of paper thrown into the container and / or to evaluate the filling rate of the container.
- the user will be encouraged to perform a sort of objects by preferably placing in the same container 2 that objects of the same material.
- the characterization module 3 and by extension the characterization step, is configured to check whether the object inserted is in the right material, if the verification is positive then the user is paid.
- the size and / or weight of the inserted object is used to determine the retribution of the user. If the check is negative then a fraud is detected and the user is not paid (in this case the user is warned that the inserted object is not intended for the container).
- the recovery device 1 preferably comprises a payment module 6 (FIG. 1), in particular financial, of a user having inserted the object into the container 2, the said payment module 6 being connected to the characterization module 3 of FIG. so as to use at least one data relating to the characterization of said inserted object to evaluate the compensation.
- the evaluation of the compensation implemented by the compensation module 6 preferably takes into account the material of the inserted object, the size and / or the weight of the material of the inserted object as well as a rate of representative of the value of the material constituting the object.
- the latter preferentially comprises a step of valuation E3 of the inserted object in which at least one datum resulting from the characterization of the inserted object is used to credit an account, in particular a user account belonging to the person who inserted the object within the container 2.
- the method comprises, before the step of inserting the object into the container 2, a step of identifying the user (by card or by smart phone).
- a contactless contact card can be made by RFID.
- the smartphone the use of a dedicated application and a wireless communication, for example by WIFI or Bluetooth, can be used.
- One or more steps of inserting an object can then be performed.
- the user When the user has finished, he implements a step of validation of the inserted objects from where it results preferentially a step of evaluation of a financial reward according to the objects inserted, and a stage of contribution of credit on a account, for example present on the card or on the smartphone.
- a signal light, or a buzzer can be used to signify to the user that it is fraudulent and that no payment will be made for the object concerned.
- the payment can be credited to a personal card of the user that the latter has taken care to present to the payment module 6 before the insertion of the object in the container 2.
- the credit can be made to an account the user that the latter can, for example, consult from his smart mobile phone, in this case the compensation module 6 can use a connection, preferably wireless, to go credit the appropriate user account on a server.
- the user will be rewarded for an insertion phase of a plurality of objects in the form of glass bottles in a container 2 forming a collection point for glass bottles.
- the compensation according to the weight for a given user can be done in the following manner by characterizing each of the objects inserted: Pusager Pp * + Np
- Pusager represents a total weight sent by a user when he came to the collection point
- PG represents a fixed datum representing an average weight of a bottle considered as a large bottle
- P P represents a fixed data representing an average weight of a bottle considered as a small bottle
- N G and N P represent respectively the number of large bottles and the number of small bottles actually discarded by the user.
- the discrimination between a small bottle and a large bottle is made by comparing, for each bottle inserted, the difference between T c and T R at a predetermined threshold of discrimination of the size of the bottle (below this threshold it is a small bottle and above this threshold it is a large bottle).
- the user will be rewarded for a phase of insertion of a plurality of objects, being in the form of paper pile, in a container 2 forming a paper collection point.
- the compensation according to the weight for a given user can be done in the following way by studying each of the inserted objects: For each jet i one determines a weight of pile Piasj and the estimation of the weight of paper waste sent by the user ( Pusager), in the end Pusager is equal to the sum of Piasj for i going from 1 to N Tas the number of heaps inserted. It can happen, when a user brings objects into a recovery center (also called voluntary point of supply), the container 2 he wants to use is full. This is due to problems of management of the filling of the container 2.
- the device 1 of recovery of a determination module 7 of the filling of the container 2 in particular configured to use at least data from the acoustic system 4 and / or the characterization module 3.
- the determination element 7 of the filling of the container 2 detects that the filling of the container 2 exceeds a predetermined threshold, it can transmit an alert to the device manager. recovery 1 so that the latter quickly plans the emptying of said associated container 2.
- the filling level of the container 2 is estimated from the instant of the contact T c of the object with the cover 5 and the instant T C h-
- the duration between these two instants will depend on: thrown object, the size of the discarded object (small, large), the speed of the jet of the object given by the user, and the filling level before the jet (cumulative volume).
- FIG. 7 gives an example of the evolution of the average falling time of a glass bottle considered by the characterization step as a small bottle as a function of the level of filling of the container 2. It is thus clear that the duration of a fall of an object, or of the duration average drop of objects of the same size to limit errors, used to estimate the filling level of the container 2.
- the latter advantageously comprises a step of estimating the filling of the container 2 using at least one acoustic data, in particular from the acoustic system 4.
- the step of estimating the filling comprises at least one one of the following steps: a determination, from said at least one acoustic data, of a number of average rebounds made in the container by the inserted objects; a determination, based on said at least one acoustic data, of an average duration of falling objects, including the same size, inserted in the container 2; a determination, from said at least one acoustic data, the number of objects inserted in the container 2.
- the container 2 described above can be air or buried.
- the outer envelope may preferably comprise a cavity at the bottom of which the cover 5 is placed.
- This cavity has a depth that prevents the user from interacting with his hand directly with the lid (for example to make believe that the volume of the object inserted in the container 2 is much greater than the actual volume of the object inserted in the container. container 2 to increase compensation).
- the recovery device 1 can be electrically powered, for example by battery or with a solar panel connected to a management system and battery storage to allow in particular to the characterization module 3 to implement its tasks.
- the recovery device 1 may include a sleep state and an active state.
- the active state consumes more power than the standby state.
- the transition from the waking state to the active state can be triggered by contact of an object with the cover 5, and the transition from the active state to the waking state can be implemented for example if the cap 5 has remained in its closed position for a duration greater than a threshold duration of standby.
- the recovery device 1 may also include a human machine interface allowing feedback to the user by informing him of the material and / or size and / or volume of the object inserted into the container 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Closures For Containers (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15734148T PL3164344T3 (en) | 2014-07-03 | 2015-07-03 | Device and method for retrieving objects, in particular waste, using sound |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1456376A FR3023271A1 (en) | 2014-07-03 | 2014-07-03 | DEVICE AND METHOD FOR RECOVERING OBJECTS, IN PARTICULAR WASTE, USING ACOUSTICS |
PCT/EP2015/065195 WO2016001404A1 (en) | 2014-07-03 | 2015-07-03 | Device and method for retrieving objects, in particular waste, using sound |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3164344A1 true EP3164344A1 (en) | 2017-05-10 |
EP3164344B1 EP3164344B1 (en) | 2018-05-09 |
Family
ID=51570660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15734148.8A Active EP3164344B1 (en) | 2014-07-03 | 2015-07-03 | Device and method for retrieving objects, in particular waste, using sound |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3164344B1 (en) |
ES (1) | ES2682974T3 (en) |
FR (1) | FR3023271A1 (en) |
PL (1) | PL3164344T3 (en) |
PT (1) | PT3164344T (en) |
WO (1) | WO2016001404A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4411478C2 (en) * | 1993-05-22 | 1996-03-14 | Krone Ag | Procedure for monitoring the fill levels of recycling containers |
KR100850676B1 (en) * | 2008-02-12 | 2008-08-07 | 전기정 | Sorting compressor for sorting reduction appartus of beverage vessel |
CN101391693A (en) * | 2008-10-14 | 2009-03-25 | 清华大学 | Automatic sorting garbage bin |
FR2949108A1 (en) * | 2009-08-11 | 2011-02-18 | Plastic Omnium Cie | Temporary rubbish container's i.e. collection bin, content scanning device, for use in collection lorry, has tilting device authorizing or prohibiting bin tilting based on comparison result of content measurement with pre-recorded profiles |
CN201808857U (en) * | 2010-09-25 | 2011-04-27 | 浙江理工大学 | Automatic classification garbage can |
-
2014
- 2014-07-03 FR FR1456376A patent/FR3023271A1/en not_active Withdrawn
-
2015
- 2015-07-03 PL PL15734148T patent/PL3164344T3/en unknown
- 2015-07-03 ES ES15734148.8T patent/ES2682974T3/en active Active
- 2015-07-03 EP EP15734148.8A patent/EP3164344B1/en active Active
- 2015-07-03 PT PT15734148T patent/PT3164344T/en unknown
- 2015-07-03 WO PCT/EP2015/065195 patent/WO2016001404A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
PT3164344T (en) | 2018-10-22 |
PL3164344T3 (en) | 2018-10-31 |
ES2682974T3 (en) | 2018-09-24 |
WO2016001404A1 (en) | 2016-01-07 |
EP3164344B1 (en) | 2018-05-09 |
FR3023271A1 (en) | 2016-01-08 |
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