JP2008287392A - Vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vending machine with a conduction heater capable of determining a temperature change specific to a commodity such as a can material for reducing the time for determining failure of a heater and the like. <P>SOLUTION: Failure determination on the conduction heater can be carried out in a short type by a heating coil 1, a high frequency power transformation device 3, a temperature detector 5, an amplifier 6, an output change measurement means 8, a first determination means 9, a stop signal generation means 10, a heating control means 11, a second determination means 12, a sale stop signal generation means 13, a HOT sale selection means 15, a housing device 16, a receiving base 17, a convey-out device 18, a commodity information setting means 20, a parameter storage means 21, and a computing control part 22a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vending machine with an induction heating device that heats a canned beverage product (hereinafter referred to as a can beverage) such as coffee by induction heating at the time of sales (hereinafter referred to as HOT sales).

  In recent years, vending machines have been proposed that apply induction heating technology to sell canned beverages by induction heating at the time of sale.

  In addition, a vending machine has been proposed in which not only the heating time is controlled according to the capacity of the can beverage and induction heating is stopped at a predetermined heating time, but the product is not sold without being heated due to a failure of the heating device ( For example, see Patent Document 1).

  Hereinafter, a conventional vending machine will be described with reference to the drawings.

  FIG. 9 is a block diagram of a conventional vending machine.

  As shown in FIG. 9, the conventional vending machine includes a can beverage 2, a cradle 17 that receives the can beverage 2, a heating coil 1 that is juxtaposed to the cradle 17 and wound in an arc plate shape, and a heating coil. 1 detects the temperature of the can wall of the body portion of the can beverage 2 to be induction-heated in the cradle 17 in a non-contact manner and outputs it. Is compared with the temperature detector 5 for transmitting the output, the amplifier 6 for amplifying the output of the temperature detector 5, the output of the amplifier 6 and the determination value for terminating induction heating, and if the output of the amplifier 6 reaches the determination value, the heating is completed. A first determination means 9 for determining the output change, an output change measurement means 8 for measuring the output change of the amplifier 6 for a predetermined time from the start of heating, and whether or not the output change measured by the output change measurement means 8 is a predetermined output change. Second determining means 12, first determining means 9 and The stop signal generating means 10 for generating a stop signal for stopping the high-frequency power converter 3 based on the determination result of the second determination means 12 and the second determination means 12 are sold when it is determined that the predetermined output change has not been reached. The sales stop signal generating means 13 for stopping, the heating means 11 for operating / stopping the high-frequency power converter 3 with a predetermined heating output, and the HOT sales selecting means 15 are provided.

  The operation of the conventional vending machine configured as described above will be described below.

  When the customer pushes the HOT sales selection means 15, the canned beverage 2 is put into the cradle 17.

And the heating control means 11 starts the heating of a can drink. Then, the output of the temperature detector 5 is amplified by the amplifier 6 and input to the first determination means 9, and when it reaches a predetermined temperature, the heating is stopped. Further, the output change of the amplifier 6 is measured for a certain period of time after the start of heating, and the second determination means 12 determines whether or not the predetermined output change has occurred. And
Japanese Patent Laid-Open No. 5-120529

  However, in the above conventional configuration, when it is not heated due to a failure of the heating device, regardless of the material of the can beverage 2, etc., the determination is made by the temperature change after a certain time. Therefore, it takes a long time to refund, and has a problem of making the customer wait.

  The present invention solves the conventional problem, and by making it possible to grasp the temperature change specific to a product such as a can material, induction heating that can shorten the time for judging a failure of a heating device or the like is achieved. An object is to provide a vending machine with a device.

  In order to solve the above-mentioned conventional problems, the vending machine of the present invention is an induction machine that heats can goods by an induction heating method by a high-frequency power converter that supplies a constant high-frequency power to a heating coil wound in an arc shape. A vending machine equipped with a heating device, a temperature detector for detecting a can wall temperature of the can product in a non-contact manner and sending an output, an amplifier for amplifying the output of the temperature detector, and the amplifier The first determination means for determining the end of heating if the output of the product becomes the determination value, the parameter storage means for storing the temperature increase parameter set in advance for each product information, and the product for setting the product information of the stored product Information setting means, output change measuring means for measuring output changes of the amplifier periodically from the start of heating, and output changes measured by the output change measuring means are stored in advance in the parameter storage means. A second determination means for determining whether or not the output change coincides with the output change, and generating a stop signal for generating a stop signal for stopping the high-frequency power converter based on the determination results by the first and second determination means And a sales stop signal generating means for stopping sales when it is determined by the second determination means that the output changes do not match.

  Accordingly, it is possible to determine the failure of the induction heating device in a short time by using the temperature increase parameter set for each product in advance.

  The vending machine of the present invention can determine the failure of the induction heating device in a short time by using the temperature rise parameter set for each product in advance, and can reduce the time until refunding At the same time, the product can be prevented from being abnormally heated.

  The invention according to claim 1 of the present invention is an automatic equipped with an induction heating device that heats a can product by an induction heating method by a high frequency power conversion device that supplies a constant high frequency power to a heating coil wound in an arc shape. A temperature detector that detects a can wall temperature of the can product in a non-contact manner and sends an output; an amplifier that amplifies the output of the temperature detector; and an output of the amplifier is a determination value. If it becomes, the 1st judgment means which judges the end of heating, the parameter storage means which memorizes the temperature rise parameter set up beforehand for every merchandise information, the merchandise information setting means which sets the merchandise information of the goods stored, Output change measuring means for periodically measuring the output change of the amplifier from the start of heating, and the output change measured by the output change measuring means coincides with the output change previously stored in the parameter storage means Stop signal generating means for generating a stop signal for stopping the high-frequency power converter based on determination results by the first and second determination means, and second determination means for determining whether or not When the judging means judges that the output changes do not coincide with each other, there is provided a sales stop signal generating means for stopping the sales.

  Accordingly, it is possible to determine the failure of the induction heating device in a short time by using the temperature increase parameter set for each product in advance.

  The invention according to claim 2 is set for each of the can materials and the current detector for detecting the current flowing through the heating coil in a non-contact manner and sending the output to the invention according to claim 1. Material parameter storage means for storing the temperature rise parameter, and the current detector identifies the can material from the output waveform measured at the start of heating, the output change stored by the material parameter storage means, and the output It is characterized by determining whether or not the output changes measured by the change measuring means match.

  Accordingly, it is possible to use a temperature increase parameter set in advance for each can material without setting product information for each column, and it is possible to determine the failure of the induction heating apparatus in a short time.

  The invention according to claim 3 is the invention according to claim 1, further comprising a product information detector for detecting the product information of the can beverage in a non-contact manner and transmitting the output. It is characterized in that it is determined whether or not the output change stored in the parameter storage means and the output change measured by the output change measuring means match based on the product information sent by the information detector. is there.

  Accordingly, it is possible to use a temperature increase parameter set in advance for each product without setting product information for each column, and it is possible to determine the failure of the induction heating apparatus in a short time.

  The invention according to claim 4 of the present invention is the same as that according to claim 1, wherein the output change stored in the parameter storage means and the output change measured by the output change measuring means do not match. And a third determination means for determining whether the product can be heated from the output change state, and when the third determination means determines that the product can be heated, until the customer is heated to a predetermined temperature. A time display means for informing the required time; and a sales selection means for the customer to select whether or not to continue the sales. The output change stored in the parameter storage means and the output change measured by the output change measurement means are the same. Even when it is not done, it can be sold if it can be heated.

  As a result, even if a failure is determined, if the product can be heated, the customer can select whether or not to continue selling without stopping the sale unilaterally.

(Embodiment 1)
FIG. 1 is a functional block diagram of a vending machine according to Embodiment 1 of the present invention. FIG. 2 is a flowchart showing the operation of the embodiment.

  In FIG. 1, a heating coil 1 that is a coil that induction-heats a canned beverage 2 and is wound in a circular arc shape so that a cylindrical can wall is along, and a low-frequency power from a commercial power source 4 is converted into a heating coil 1. A high-frequency power converter 3 that supplies a constant high-frequency power to the body, a thermopile that detects the temperature of the can wall of the body of the can beverage 2 in a non-contact manner, and converts the amount of infrared light from the can wall into an electrical output signal, etc. Temperature detector 5 and an amplifier 6 that amplifies the signal of the temperature detector 5 and outputs a signal that matches the can wall temperature.

  An output change measuring means 8 for measuring a change in the output of the amplifier 6 for a certain time from the start of heat dissipation, a first determining means 9 for determining whether or not the output of the amplifier 6 has reached a determination value, and a first determining means 9, a stop signal generating means 10 for generating a stop signal for stopping the high-frequency power converter 3, a heating control means 11 for operating / stopping the high-frequency power converter 3 with a predetermined heating output, and an output change measurement And second determination means 12 for determining whether the output change detected by the means 8 is a predetermined output change.

  If the predetermined output change has not been reached, the sale stop signal generating means 13 for sending the sale stop signal to stop the sale while allowing the coin mechanism to refund, and the HOT sale set to select the product to be sold after heating. Selection means 15, storage device 16 for storing canned beverages, cradle 17 for receiving canned beverage 2, unloading device 18 for transporting canned beverage 2 from storage device 16 to cradle 17, and storage device Product information setting means 20 for inputting product information such as a temperature rise parameter of the product stored in 16, a ROM for storing product information such as a temperature rise parameter input by the product information setting means 20, etc. Parameter storage means 21, output change measurement means 8, first determination means 9, stop signal generation means 10, second determination means 12, sales stop signal generation means 13, and HOT sales. Selecting means 15 and the product information setting means 20 and the parameter storage unit 21 and the connected CPU, ROM, is composed of a calculation control unit 22a having a RAM and an input-output unit.

  With respect to the vending machine configured as described above, the operation and action of the arithmetic control unit 22a will be described below with reference to the flowchart of FIG.

  First, it is determined whether the HOT sales selection means 15 has been pressed (STEP 1). If not, the process ends. When the HOT sales selection unit 15 is pressed, the calculation control unit 22a reads the output signal from the parameter storage unit 21 for the temperature increase parameter of the product in the storage device 16 corresponding to the pressed switch (STEP 2).

  Next, the calculation control unit 22a opens the carry-out device 18 and carries out the can beverage 2 in the storage device 16 into the receiving table 17 (STEP 3). Next, the arithmetic control unit 22a transmits a heating start signal to the heating control unit 11, and the heating control unit 11 outputs the heating control unit 11 to the high-frequency power converter 3, and heating is started with a predetermined heating output (STEP 4). Next, the temperature detection signal from the temperature detector 5 is taken into the arithmetic control unit 22a via the amplifier 6 to detect the can wall temperature (STEP 5).

  Next, the arithmetic control unit 22a measures the change in the output of the amplifier 6 for a certain time after the start of heating (STEP 6). Next, it compares with the output change by the temperature rise parameter read from the parameter memory | storage means 21 (STEP7).

  Next, if the output change reaches the output change due to the temperature increase parameter, it is determined that the heating device and the temperature detector are normal without any abnormality and are normally detected, and the heating is continued (STEP 8). Subsequently, it is determined whether or not the output of the amplifier 6 has reached a set determination value, that is, whether or not the can wall temperature has reached a predetermined temperature (STEP 9). Next, when the determination value is reached, the arithmetic control unit 22a sends a stop signal to the high-frequency power converter 3, the high-frequency power converter 3 stops, finishes the induction heating (STEP 10), and completes the HOT sales (STEP 11).

  If the output change of the amplifier 6 does not reach the standard in STEP 7, it is determined that there is an abnormality in the heating device, the temperature detector or the like and the heating is not performed normally or the temperature detector is abnormal, and heating is stopped (STEP 12 ), Money is returned (STEP 13), and HOT sales are stopped (STEP 14).

  As described above, by setting the temperature rise parameter for each product in advance every time the product is stored in the storage device 16, it is determined whether there is a predetermined output change using the temperature increase parameter set for each product. Therefore, it is possible to make a failure determination of the induction heating device, the temperature detector, etc. in a short time, and the sales can be stopped without causing trouble to the customer.

(Embodiment 2)
FIG. 3 is a functional block diagram of the vending machine according to the second embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the embodiment.

  In FIG. 3, a current detector 23 is connected to the arithmetic control unit 22b, detects the current flowing through the heating coil 1 in a non-contact manner, and sends out an output. The material parameter storage means 24 is connected to the calculation control unit 22b, and stores a temperature increase parameter set for each can material.

  In the present embodiment, the vending machine according to the first embodiment further detects a current flowing through the heating coil 1 in a non-contact manner and sends an output, and a temperature set for each can material. Material parameter storage means 24 for storing the ascending parameters is provided.

  With respect to the vending machine configured as described above, the operation and action of the arithmetic control unit 22b will be described below with reference to the flowchart of FIG.

  First, it is determined whether the HOT sales selection means 15 has been pressed (STEP 1). If not, the process ends. When the HOT sales selection means 15 is pushed, the calculation control unit 22b opens the carry-out device 18 and carries the can drink 2 in the storage device 16 into the receiving table 17 (STEP 3).

  Next, the calculation control unit 22b transmits a heating start signal to the heating control unit 11, and the heating control unit 11 outputs the heating control unit 11 to the high-frequency power converter 3, and heating is started with a predetermined heating output (STEP 4). Next, the current flowing through the coil is detected by the current detector 23 inserted in the path of the heating coil 1 (STEP 15), and the operation control unit uses the detected current waveform to match the current waveform set for each can material. The ascending parameter is read from the material parameter storage means 24 (STEP 16).

  Next, the temperature detection signal from the temperature detector 5 is taken into the arithmetic control unit 22b via the amplifier 6 to detect the can wall temperature (STEP 5). Next, the arithmetic control unit 22b measures the output change of the amplifier 6 for a certain time after the start of heating (STEP 6). Next, it compares with the output change by the temperature rise parameter read from the material parameter memory | storage means 24 (STEP17).

  Next, if the output change reaches the output change due to the temperature increase parameter, it is determined that the heating device and the temperature detector are normal without any abnormality and are normally detected, and the heating is continued (STEP 8). Subsequently, it is determined whether or not the output of the amplifier 6 has reached a set determination value, that is, whether or not the can wall temperature has reached a predetermined temperature (STEP 9).

  Next, when the determination value is reached, the arithmetic control unit 22b sends a stop signal to the high-frequency power converter 3, the high-frequency power converter 3 stops, finishes the induction heating (STEP 10), and completes the HOT sales (STEP 11). If the output change of the amplifier 6 does not reach the standard in STEP 7, it is determined that there is an abnormality in the heating device, the temperature detector or the like and the heating is not performed normally or the temperature detector is abnormal, and heating is stopped (STEP 12 ), Money is returned (STEP 13), and HOT sales are stopped (STEP 14).

  As described above, whether or not there is a predetermined output change using the temperature increase parameter for each can material stored in the material parameter storage unit 24 in advance without setting product information for each product stored in the storage device 16. It is possible to determine the failure of the induction heating device, the temperature detector, etc. in a short time without troublesome setting.

(Embodiment 3)
FIG. 5 is a functional block diagram of the vending machine according to the third embodiment of the present invention. FIG. 6 is a flowchart showing the operation of the embodiment.

  In FIG. 5, the product information detector 25 is connected to the calculation control unit 22c, detects the product information of the can beverage in a non-contact manner, and transmits the output.

  In the present embodiment, the vending machine according to the first embodiment is further provided with a product information detector 25 that detects product information of canned beverages in a non-contact manner and transmits an output to the arithmetic control unit 22c. is there.

  With respect to the vending machine configured as described above, the operation and action of the arithmetic control unit 22c will be described below with reference to the flowchart of FIG.

  First, it is determined whether the HOT sales selection means 15 has been pressed (STEP 1). If not, the process ends. When the HOT sales selection means 15 is pushed, the arithmetic control unit 22c opens the carry-out device 18 and carries the can drink 2 in the storage device 16 into the receiving table 17 (STEP 3).

  Next, the arithmetic control unit 22c transmits a heating start signal to the heating control unit 11, and the heating control unit 11 outputs the signal to the high-frequency power converter 3, and heating is started with a predetermined heating output (STEP 4). Next, merchandise information for specifying merchandise such as barcodes and labels is read by the merchandise information detector 25 and output to the arithmetic control unit as a digital signal (STEP 18). The temperature increase parameter of the product that matches the output signal is read from the parameter storage means 21 (STEP 19).

  Next, the temperature detection signal from the temperature detector 5 is taken into the arithmetic control unit 22c via the amplifier 6 to detect the can wall temperature (STEP 5). Next, the arithmetic control unit 22c measures the output change of the amplifier 6 for a certain time after the start of heating (STEP 6). Next, it compares with the output change by the temperature rise parameter read from the parameter memory | storage means 21 (STEP7).

  Next, if the output change reaches the output change due to the temperature increase parameter, it is determined that the heating device and the temperature detector are normal without any abnormality and are normally detected, and the heating is continued (STEP 8). Subsequently, it is determined whether or not the output of the amplifier 6 has reached a set determination value, that is, whether or not the can wall temperature has reached a predetermined temperature (STEP 9).

  Next, when the determination value is reached, the arithmetic control unit 22c sends a stop signal to the high-frequency power converter 3, the high-frequency power converter 3 stops, finishes the induction heating (STEP 10), and completes the HOT sales (STEP 11). If the output change of the amplifier 6 does not reach the standard in STEP 7, it is determined that there is an abnormality in the heating device, the temperature detector or the like and the heating is not performed normally or the temperature detector is abnormal, and heating is stopped (STEP 12 ), Money is returned (STEP 13), and HOT sales are stopped (STEP 14).

  As described above, it is possible to determine whether a predetermined output change has occurred using the temperature increase parameter for each product stored in the parameter storage unit 21 in advance without setting the temperature increase parameter for each replacement of the product stored in the storage device 16. It is possible to determine whether or not a failure such as an induction heating device or a temperature detector can be determined in a short time without troublesome settings.

(Embodiment 4)
FIG. 7 is a functional block diagram of the vending machine according to the fourth embodiment of the present invention. FIG. 8 is a flowchart showing the operation of the embodiment.

  In FIG. 7, the third determination means 26 is connected to the calculation control unit 22d, and when the output change stored in the parameter storage means and the output change measured by the output change measurement means do not match, the output change state is detected. This is for determining whether the product can be heated. Further, the time display means 27 is connected to the calculation control unit 22d, and informs the customer of the time required to heat up to a predetermined temperature when it is determined by the third determination means that the product can be heated. belongs to. The sales selection means 28 is connected to the calculation control unit 22d, and is used by the customer to select whether or not to continue sales.

  In the present embodiment, when the output change stored in the parameter storage means and the output change measured by the output change measuring means do not match the vending machine according to the first embodiment, A third determination unit 26 for determining whether or not heating is possible, and a time required for heating to a predetermined temperature are notified to the customer when the third determination unit determines that the product can be heated. A time display means 27 and a sales selection means 28 for the customer to select whether or not to continue sales are provided.

  With respect to the vending machine configured as described above, the operation and action of the arithmetic control unit 22d will be described below with reference to the flowchart of FIG.

  First, it is determined whether the HOT sales selection means 15 has been pressed (STEP 1). If not, the process ends. When the HOT sales selection unit 15 is pressed, the calculation control unit 22d reads the output signal from the parameter storage unit 21 for the temperature increase parameter of the product in the storage device 16 corresponding to the pressed switch (STEP 2).

  Next, the calculation control unit 22d opens the carry-out device 18 and carries the can drink 2 in the storage device 16 into the receiving table 17 (STEP 3). Next, the calculation control unit 22d transmits a heating start signal to the heating control unit 11, and the heating control unit 11 outputs the heating control unit 11 to the high-frequency power conversion device 3, and heating is started with a predetermined heating output (STEP 4). Next, the temperature detection signal from the temperature detector 5 is taken into the arithmetic control unit 22d through the amplifier 6 to detect the can wall temperature (STEP 5).

  Next, the arithmetic control unit 22d measures the output change of the amplifier 6 for a certain time after the start of heating (STEP 6). Next, it compares with the output change by the temperature rise parameter read from the parameter memory | storage means 21 (STEP7). Next, if the output change reaches the output change due to the temperature increase parameter, it is determined that the heating device and the temperature detector are normal without any abnormality and are normally detected, and the heating is continued (STEP 8). Subsequently, it is determined whether or not the output of the amplifier 6 has reached a set determination value, that is, whether or not the can wall temperature has reached a predetermined temperature (STEP 9).

  Next, when the determination value is reached, the arithmetic control unit 22d sends a stop signal to the high-frequency power converter 3, the high-frequency power converter 3 stops, finishes the induction heating (STEP 10), and completes the HOT sales (STEP 11). Further, even if the output change of the amplifier 6 does not reach the reference in STEP 7, it is determined whether the output change state is an influence of the outside air temperature or the like by the third determining means 26 (STEP 20), and the outside air temperature or the like is determined. If it is a difference that can be determined to be an effect, it is heated normally, and it is determined that it has been detected normally, and heating is continued (STEP 21), but the customer uses time display means such as 7SEG or VFD. After displaying the heating time and current status, the user is prompted to select a sales selection means for selecting whether to continue purchasing (STEP 22).

  If purchase is selected, it is determined whether or not the output of the amplifier 6 has reached the set determination value, that is, whether or not the can wall temperature has reached a predetermined temperature (STEP 23). Next, when the determination value is reached, the arithmetic control unit 22d sends a stop signal to the high-frequency power converter 3, the high-frequency power converter 3 stops, finishes the induction heating (STEP 24), and completes the HOT sale (STEP 25).

  If it is selected not to purchase in STEP 22, heating is stopped (STEP 26), money is returned (STEP 27), and HOT sales are terminated (STEP 28). Also, if the difference is not enough to determine that it is an influence of the outside air temperature or the like in STEP 20, it is determined that there is an abnormality in the heating device or the temperature detector and the heating is not normal or the temperature detector is abnormal. Stop (STEP 12), return money (STEP 13), and stop HOT sales (STEP 14).

  As described above, even when the temperature does not reach the standard by determining whether the output change is a predetermined value using the temperature increase parameter for each product stored in the parameter storage unit 21, the product is normally heated and detected normally. If it can be determined, the customer can select whether or not to continue the sales without unilaterally stopping the sales.

  As described above, since the vending machine with an induction heating device according to the present invention is heated by induction heating at the time of sale, it can suppress warming deterioration and energy consumption of products, so a cup vending machine that supplies hot water It can also be applied to applications that require labor saving in heating energy.

Block diagram of a vending machine in Embodiment 1 of the present invention Flowchart showing the operation of the vending machine of the first embodiment Block diagram of vending machine according to Embodiment 2 of the present invention Flowchart showing the operation of the vending machine of the second embodiment Block diagram of a vending machine in Embodiment 3 of the present invention Flowchart showing the operation of the vending machine of the third embodiment Block diagram of vending machine according to Embodiment 4 of the present invention Flowchart showing the operation of the vending machine of the fourth embodiment Block diagram of a conventional vending machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating coil 2 Canned beverage 3 High frequency power converter 5 Temperature detector 6 Amplifier 8 Output change measuring means 9 1st determination means 10 Stop signal generation means 11 Heating control means 12 2nd determination means 13 Sales stop signal generation means 15 HOT sales selection means 16 storage device 17 cradle 18 carry-out device 20 product information setting means 21 parameter storage means 22a, 22b, 22c, 22d arithmetic control unit 23 current detector 24 material parameter storage means 25 product information detector 26 third Determination means 27 Time display means 28 Sales selection means

Claims (4)

  A vending machine provided with an induction heating device that heats a can product by an induction heating method using a high frequency power converter that supplies a constant high frequency power to a heating coil wound in an arc shape, the can wall of the can product A temperature detector that detects the temperature in a non-contact manner and outputs an output; an amplifier that amplifies the output of the temperature detector; and first determination means that determines the end of heating when the output of the amplifier reaches a determination value Parameter storage means for storing a temperature rise parameter set in advance for each product information; product information setting means for setting product information of a stored product; and output change of the amplifier is periodically measured from the start of heating. Output change measuring means for determining whether the output change measured by the output change measuring means coincides with the output change stored in advance in the parameter storage means. The stop signal generating means for generating a stop signal for stopping the high-frequency power converter based on the determination results by the first and second determining means and the output change by the second determining means do not match A vending machine comprising sales stop signal generating means for stopping sales when it is determined that   A current detector that detects the current flowing in the heating coil in a non-contact manner and sends an output; and a material parameter storage means that stores a temperature increase parameter set for each can material. The can material is identified from the output waveform measured at the start, and it is determined whether or not the output change stored by the material parameter storage means matches the output change measured by the output change measurement means. The vending machine according to claim 1.   A product information detector for detecting product information of canned beverages in a non-contact manner and transmitting an output is provided, and is stored in a parameter storage means sent based on the product information transmitted by the product information detector. 2. The vending machine according to claim 1, wherein it is determined whether or not the output change and the output change measured by the output change measuring means coincide with each other.   Third determination means for determining whether or not product heating is possible from the output change state when the output change stored in the parameter storage means and the output change measured by the output change measurement means do not match; and Time display means for notifying the customer of the time required to heat the product to a predetermined temperature when it is determined by the determination means that the product can be heated, and a sales selection means for the customer to select whether or not to continue sales 2. Even if the output change stored in the parameter storage means and the output change measured by the output change measuring means do not match, it can be sold if it can be heated. Vending machine.

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