Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07F—COIN-FREED OR LIKE APPARATUS
  • G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
  • G07F13/06—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs with selective dispensing of different fluids or materials or mixtures thereof
  • G07F13/065—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs with selective dispensing of different fluids or materials or mixtures thereof for drink preparation
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07F—COIN-FREED OR LIKE APPARATUS
  • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
  • G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
  • G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty

Definitions

• the present invention relates to a goods issue machine with at least one sensor for detecting at least one capacitive variable, according to the preamble of claim 1.
• sensors which in particular detect fill levels, for example those of a water tank, and transmit them to a control device.
• capacitive sensors are used, which operate on the basis of the change in the capacitance of a single capacitor or a whole capacitor system.
• the currently used sensors are usually hardwired, and in particular capacitive sensors require an exact positioning of the medium to be measured to the sensor in order to provide accurate and reproducible results. If the sensors are used in conjunction with removable components, such as in a water tank or a milk reservoir, very high demands are placed on the coupling or the execution of the measuring point to obtain the above accurate and reproducible measurement results.
• the present invention therefore deals with the problem of providing a generic goods dispenser, an improved or at least provide an alternative embodiment, which is particularly simple in construction and simultaneously provides high-quality measurement results.
• the present invention is based on the general idea of a capacitive sensor in a cash dispenser as wireless Signal transmission chip, in particular as an RFID chip form or coupled with such a signal transmission, said RFID chip for wireless signal transmission is capable of and can be installed directly at the measuring point.
• the capacitive sensor detects a change in the capacitance of a single capacitor or a whole capacitor system and forwards the measured value thus detected wirelessly, for example, to a control controller or a display panel.
• the term "goods dispenser” should be understood as meaning both an automatic dispenser for dispensing solids and an automatic dispenser for dispensing liquids, pastes or mixtures.
• the wireless signal transmission chip can be mounted directly on the container.
• the wireless signal transmission by means of certain frequencies, an otherwise high cabling overhead within the automatic teller machine can be avoided.
• the greatest advantage is that the sensor designed as a particular RFID chip is always correctly positioned by its once fixed position to the medium to be measured, thereby providing particularly accurate results.
• the signal transmission chip according to the invention, the problem of the optimal relative position between this and the medium to be measured is solved since the wireless signal transmission chip is once attached to its installation position and fixed there.
• the signal transmission chip is integrated in a wall of a container, for example a water tank and is therefore removable and flushable together with it.
• RFID Radio Frequency Identification
• An RFID system usually consists of the RFID chip (transponder) which is located on or in the article and identifies it, and a reader for reading the transponder identification.
• the reader which is integrated in the present case in the drinks vending machine, usually contains software that controls the actual reading process.
• the reader generates an electromagnetic high-frequency field of short range, preferably by induction coils, whereby not only data can be transmitted, but at the same time the RFID chip can also be supplied with energy.
• RFID chips can be as small as a grain of rice and thus easily positioned at almost all important points of the beverage vending machine.
• the signal transmission chip is arranged on at least one of the following containers and determines its presence or a level in this container: bean container, ground coffee container, filter coffee container, cleaner container, milk storage container, set box, water tank, mixing fluid container and / or drip tray.
• mixed fluid can be understood as meaning, in particular, syrup, alcohol, cream, milk, colorant, etc.
• a signal transmission chip also for the detection of leaks or for monitoring a functional control (for example, a tube / tube filled or not) can be used.
• a functional control for example, a tube / tube filled or not
• the at least one signal transmission chip forms an integral part of the container.
• the signal transmission chip for example, be embedded in the wall of a water tank, in particular injected, and thereby taken together with the water tank or flushed together with this.
• the integrated position of the signal transmission chip in, for example, the wall of the container this is also protected from external influences, whereby a high reliability can be achieved.
• the signal transmission chip is not limited to a capacitive mode of operation or the detection of capacitive measured variables, but can generally also have a different mode of operation.
• At least one signal transmission chip is expediently designed to detect, for example, a flow rate, a pressure, a rotational speed, a distance / distance, a moisture content, a density or the detection of water constituents.
• RFID chip the signal transmission chip
• the wireless signal transmission chip in particular in coffee machines, those parts which are often removed and replaced can be equipped, the signal transmission chip preferably being fixedly mounted in or on the detachable part. This ensures that the signal transmission chip is always positioned the same way to the medium to be measured and thus reliably delivers exactly reproducible results. It is through the wireless signal transmission It is also possible to have a large number of particular RFID chips read by only one reading device, wherein in particular the wiring complexity due to the wireless transmission can be significantly reduced. As a result, the beverage vending machines according to the invention are not only structurally simpler and cheaper, but at the same time also service-friendly.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
• Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=45002811

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (4)

Citations (2)

Family Cites Families (5)

• 2010
  • 2010-12-03 DE DE102010062397A patent/DE102010062397A1/de not_active Withdrawn
• 2011
  • 2011-11-24 EP EP11190460A patent/EP2461298A1/fr not_active Withdrawn
  • 2011-11-30 US US13/307,044 patent/US20120139735A1/en not_active Abandoned

Patent Citations (2)

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