• 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 invention relates to a waste container (1, 10) for ash and liquids with a capacitive filling degree sensor (Sa, b). A control unit (8) is arranged on the container for initiating zero level calibration of the capacitive filling degree sensor (Sa, b). The zero calibration eliminates the effect of different arranged waste bags in the container. In addition, this means that information is kept that the bag has been changed before calibration. The calibration is especially important if the bag (9) is made of metal foil, which is common. The invention also relates to such a waste container (1, 10) which is provided with a single transmission unit (6) which sends information about filling level and initiation of the zero level calibration. In an embodiment of the invention, the transmitting unit (6) can transmit information about an estimated time when the container is full. In a further embodiment of the invention, the waste container (1, 10) can be provided with a closure sensor which detects if the lid of the container (10) is closed when the calibration takes place. 1/3
    公开号:SE538427C2
    申请号:SE1500042
    申请日:2015-01-21
    公开日:2016-06-21
    发明作者:Bo Dolk-Peterson
    申请人:Qleanair Scandinavia Ab；
    IPC主号:
    专利说明:

    A waste container intended to receive ash and debris with a degree of filling sensor The present invention relates to a waste container intended to receive ash and debris provided with a degree of filling sensor according to the preamble of the independent requirement.
    Background of the Invention Waste containers for ash and sinks equipped with a degree of filling sensor are known by, for example, EP1279624 and GB1129850. Such containers are particularly exposed to coatings formed by tar and other things in the smoke from hot air ducts and it is difficult to get the degree of filling sensor to function reliably. Optical degree of filling sensors tend to be covered by tar and then cease to function and many other types of degree of degree sensors also work poorly in waste containers for ash and. Mpar. A proposed alternative is Weighing, but different types of debris and mixtures of ash and debris with different proportions between the constituent parts have greatly varying density, so this is not a particularly suitable solution either.
    Capacitive sensors in this context have superior properties compared to other types of senso, but have the disadvantage that they are sensitive to all types of substance between and the near electrodes, such as the metal foil bags that are often used with such waste containers. Precisely metal has a strong effect on capacitive sensors and bags are mounted differently at different times so it is difficult to eliminate the effect of the bags on the sensors.
    An object of the invention is therefore to provide a waste container intended to receive ash and as well as equipped with a capacitive degree of filling sensor which provides greater reliability than those according to the prior art.
    These and other objects are achieved by a waste container intended to receive ash and finely equipped with a capacitive degree of filling sensor according to the characterizing parts of the independent claim.
    Summary of the invention The invention relates to a waste container 1, 10 intended to receive ash and fumbles provided with a capacitive filling degree sensor Sa, b. Adjacent to the container is arranged a control unit 8 for initiating zero level calibration of the capacitive filling degree sensor Sa, b. In addition, this gives the advantage that information is obtained that the bag is changed before the calibration. The calibration is particularly advantageous if the bag 9 is at least partly formed of metal foil, which is common.
    The invention also relates to such a waste container 1, 10 which is additionally provided with a single transmission unit 6 which transmits information on at least the filling level and initiation of the zero level calibration.
    In a particularly advantageous embodiment of the invention, the transmitting unit 6 can also send information about an estimated time when the container is full.
    In a further advantageous embodiment of the invention, the waste container 1, 10 can be provided with a closure sensor which detects if the lid 10 of the container is closed when the calibration takes place.
    Brief description of the figures Fig. 1 schematically shows an embodiment of the waste container in cross section Fig. 2 schematically shows the waste container with a waste bag in a first shape Fig. Fig. 1 schematically shows the waste container with a waste bag in a second shape. Description of a preferred embodiment Fig. 1 schematically shows an embodiment of the waste container in cross section. The waste container comprises a container 1 with an openable lid 10. The waste container is specially designed for cigarette bags, cigarettes and the like so that a cigarette fi mp 3 is illustrated above a receiving opening2. The waste container has been partially filled with ash and dumps up to a level 4, where the waste forms a puddle directly below the receiving opening 2. The receiving opening 2 is designed in one of the usual ways designed to receive just dumps and ashes that are often used with different types of ashtrays. . The waste container must be emptied at regular intervals and in order not to have to empty it more often than necessary, it is equipped with a capacitive filling sensor Sa, b. 2 The capacitive filling sensor is illustrated as two electrodes 5a, b which project from the lid and extend approximately one third of the height of the container towards its bottom. With a capacitance sensor that extends this far, measured values are only obtained when the container is partially filled, but this is still sufficient to be able to predict when fi1 ll degree of filling is reached and the container should be emptied.
    Capacitive sensors are sensitive to objects near the electrodes, so the sensor can tend to sense the inner walls of the container, the bottom and the bag that is normally arranged in the container during use. With the illustrated embodiment of the electrodes, the sensors give a linearly high stroke as a function of degree of filling, which may be desirable, but in a simplified, non-illustrated variant of the invention, the electrodes can be even shorter and then only detect that the container is full or when full and needs to be emptied.
    Regardless of how the capacitive sensors are designed, an RF transmitter 6 can send information to a receiver 7 about the degree of filling and the available usage information. If the capacitance sensor is designed to measure a continuous degree of filling, not only that the container is close to full, it is convenient to arrange electronics and microprocessors in connection with the RF transmitter 6. The microprocessor can perform different types of signal processing to achieve an optimal level estimate and can also calculate a predicted time when the container must be emptied at the latest. Obviously, the RF transmitter can transmit this more complex amount of available information to the receiver 7.
    Capacitive sensors in this context have superior properties compared to other sensor types, as optical and ultrasonic-based sensors are highly sensitive to coatings that form throughout the container, while mechanical sensors usually have limited reliability and service life. However, the capacitive sensors have the disadvantage that they are sensitive to all types of substance between and near the electrodes. Fimps and ashes have a low dielectric constant because they are largely made of luñ, while the surrounding objects such as the walls, bottom and bag of the container normally contain are made of solid materials, typically metal which affects the container to a particularly high degree. The solution to this problem is to calibrate the capacitive sensor so that when the container is empty, a zero level is obtained, which can be allowed to vary from calibration time to calibration time.
    A button 8 is therefore arranged on the RF sensor, which can be activated when the sensor is to be calibrated. 3 When the container is empty, press the button and a zero level is obtained. Typically, this takes place at each bag change because the container is then empty and at the same time it appears that an operator has changed the bag. RF transmitters can therefore suitably also send information to the receiver that calibration has taken place, which also means that an operator has been on site and changed the bag.
    Fig. 2 schematically shows the waste container with a waste bag in a first form. The bags used for ash and bags must have a very high resistance to fire and embers. Typically, they are made of metal foil, or of aluminum, and these bags tend to add sigolica to each bag change. In the uren clock, the bag has unfortunately fallen close to the capacitive sensor electrodes Sa-b and fl then moves the zero position of the sensor sharply. By resetting the sensor for the bag arranged in this way, the sensor can still generate a reliable, linear, filling level estimation.
    Fig. 3 schematically shows the waste container with a waste bag in a second shape, where the bag is in a port of call far from the electrodes and close to the inner wall of the container. On the other hand, the bag has folded in its lower part and is not desirable near the bottom. Here, too, a reliable zero level gauge can be used as the calibration value for all subsequent degree of filling measurements. The calibration is thus performed when the old, full bag has been removed and the new, empty bag has been inserted and the lid folded down. In a further improved variant, the waste container has a closure sensor which senses if the lid is closed, which means that the bag is in its final, stable position. If the calibration button 8 is pressed before the lid is closed, the operator can be informed redone after closing the lid completely. If the operator has not calibrated the sensors at all or in an incorrect way, the receiver 7 receives information about this and a new calibration can be performed. If no information that a calibration has been carried out reaches the recipient, there is also reason to assume that the operator has not carried out a bag change at all.
    In the present embodiment, the pair of RF transmitters / receivers is illustrated as simple elements, but obviously these can be replaced by the types of transmitters and receivers or elements in network transmitters / receivers as a whole. For example, the transmitter could be a GSM device that transmits information such as SMS and, of course, variants with transmission overelectric or optical cable are conceivable. Furthermore, the electrodes of the capacitive sensor are exemplified as conductive rods extending downwards from the cover, but they can of course be designed and placed in many other ways. The element referred to here as the bag is of course not limited to bags but is intended to include all types of containers which are intended to receive waste and then be thrown away.
    权利要求:
    Claims (5)
    [1]
    A claim 1. A waste container (1, 10) intended to receive in its interior a bag (9) which is at least partly formed of metal foil, wherein the bag is intended to receive ash and fins, where the further waste container (1, 10) is provided with a capacitive filling degree sensor (Sa, b) which extends into the bag, characterized in that a control unit (8) is connected to the capacitive filling degree sensor (Sa, b) for initiating zero level calibration of the capacitive filling degree sensor (Sa, b).
    [2]
    A waste container (1, 10) according to claim 1, characterized in that the waste container (1, 10) is provided with a receiving opening (2) specially intended for ash and ash.
    [3]
    A waste container (1, 10) according to any one of the preceding claims, characterized by the waste container (1, 10) therefor being provided with a transmission unit (6) which transmits information on at least the filling level and initiation of the zero level calibration.
    [4]
    A waste container (1, 10) according to claim 3, characterized in that the transmitting unit (6) transmits thereto information about an estimated time when the container is full.
    [5]
    A waste container (1, 10) according to any one of the preceding claims, characterized by the waste container (1, 10) is provided with a closure sensor which detects if the lid of the container (10) is closed when the calibration takes place.
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    同族专利:
    公开号 | 公开日
    SE1500042A1|2016-06-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1500042A|SE1500042A1|2015-01-21|2015-01-21|A waste container designed to receive ash and pimples with a single-fill rate sensor|SE1500042A| SE1500042A1|2015-01-21|2015-01-21|A waste container designed to receive ash and pimples with a single-fill rate sensor|
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