JPH087343Y2 - Guest room refrigerator utilization monitoring device - Google Patents

Description

[Detailed description of the device] Industrial application field This device is used by a guest in a guest room in which a product in a refrigerator (hereinafter referred to as a guest room refrigerator) installed in each guest room is used. The present invention relates to a guest room refrigerator use monitoring device for smoothly paying the price when the room is charged.

Conventional technology In hotels, inns, etc., a guest room refrigerator is placed in each guest room to store products for guests to freely eat and drink, and to pay for the products at checkout. Usually, such a service system employs a refrigerator use monitoring system that automatically notifies the front desk of the use fact when using the product in each guest room refrigerator.

The guest room refrigerator used in such a system detects the fact of use of the product by, for example, opening and closing the door of the guest room refrigerator, or projects a light beam on the front side of the guest room refrigerator with the door open to take out the product, A detector is provided to detect the fact that the product is used by blocking this light beam.

With such a conventional technique, when detecting by opening and closing the door of the passenger compartment refrigerator, it is necessary to attach a limit switch or the like near the contact portion between the door and the refrigerator body of the passenger compartment. In the case of detecting by shutting off, it is necessary to attach a floodlight, a light receiver, etc. to the front of the entrance of the refrigerator in the guest room, and in any case, there is a problem that the refrigerator needs to be subjected to troublesome modification.

In addition, when detecting by opening and closing the door, the inside of the refrigerator of the guest room is all the area subject to price adjustment (hereinafter referred to as the monitoring area), so an area for storing items other than paid products (hereinafter referred to as the monitoring area) , The non-monitoring area) cannot be provided inside the warehouse, and even if the light beam is blocked, when the non-monitoring area is to be provided, it corresponds to the monitoring area except for the area corresponding to the non-monitoring area. Since the light beam has to be projected only on the area, there is a problem that not only the structure of the optical system becomes complicated but also there is a possibility of malfunction.

Therefore, in view of the problems of the conventional technology, an object of the present invention is to mount the sensor tray on a refrigerator by providing a sensor tray made of a conductive material and a detection device that operates by touching a product on the sensor tray. It is an object of the present invention to provide a guest room refrigerator utilization monitoring device that is extremely easy to construct and can easily provide an arbitrary non-monitoring area in the refrigerator as needed.

Means for Solving the Problems The structure of the present invention for achieving the above object is to provide a sensor tray made of a conductive material to be installed in a guest room refrigerator,
It operates by touching the product on the sensor tray,
The gist is to include a detection device that outputs an operation signal.

In addition, a display unit that is activated by an operation signal can be provided outside the refrigerator of the passenger compartment.

Operation With this configuration, the sensor tray made of a conductive material can be installed in the refrigerator of the passenger compartment, and the installation area thereof can be used as the monitoring area. That is, when the guest uses the refrigerator in the guest room, the door is opened and the desired product on the sensor tray in the monitoring area is taken out.
At this time, when the guest's hand touches the product, the detection device operates and outputs an operation signal. This motion signal is
By transmitting this to a center monitoring device or the like provided in the front or the like, the front can check the use of the product in the refrigerator of the guest room.

When a non-monitoring area is to be provided in the guest room refrigerator, a partition may be provided in the guest room refrigerator and an area where the sensor tray is not installed may be provided separately from the monitoring area in which the sensor tray is installed.

Further, when the display unit is provided outside the refrigerator in the guest room, when the guest touches a product in the surveillance area, the operation signal from the detection device is input to the display unit, so that the display unit is It is possible to display a message to the customer to urge the customer to declare the use of the refrigerator in the guest room.

Example Hereinafter, an example will be described with reference to the drawings.

The guest room refrigerator utilization monitoring device comprises a sensor tray 10, a detecting device 20, and an output code 30 (FIG. 1).

The sensor tray 10 is a rectangular dish-shaped member made of a conductive material and having an edge portion 11 on the periphery. As a material of the sensor tray 10, a general metal material, a conductive resin, or the like is used.

The detection device 20 includes a detection circuit 21 that connects the sensor tray 10.
And the driver circuit 22 and the output circuit 23 are cascaded (FIG. 2). These circuits are collectively controlled by the control box 20a.
It is housed inside.

The detection circuit 21 is, for example, a high input impedance AC amplifier circuit that detects and amplifies a commercial frequency voltage electrostatically induced in the sensor tray 10 by using the sensor tray 10 as an antenna, and its output is a driver circuit 22 and an output circuit. An operation signal S is output to the outside via 23. Driver circuit
22 generates an output when the output of the detection circuit 21 exceeds a set value, and the output circuit 23 correspondingly outputs a pulsed output signal S having a predetermined waveform via an output code 30. The data is output to a center monitoring device (not shown). A suitable connector 31 is attached to the end of the output cord 30 (FIG. 1).

By installing the sensor tray 10 in the refrigerator of the passenger compartment refrigerator R, its installation area can be set as the monitoring area A1 (FIG. 3). The sensor tray 10 is to be installed via an insulator B, and pay products M, M ...
Put. The interior of the guest room refrigerator R is further partitioned by appropriate partition plates R2 and R3 to create a non-monitoring area A.
2, A3 can be provided, and non-monitored areas A2, A3,
Store free items N and N that do not require payment. It should be noted that the partition plates R2 and R3 may be appropriately meshed or fence-shaped to enable circulation of cold air.

Now, when the guest uses the guest room refrigerator R, the guest opens the door R1 of the guest room refrigerator R and touches the product M in the monitoring area A1.

Here, the sensor tray 10 is an electrode as a so-called touch sensor made of a conductive material, and when the guest's hand touches the product M, the sensor tray 10 and the guest come into contact with each other via the product M. Therefore, a large commercial frequency voltage is induced in the sensor tray 10.

Since the detection circuit 21 detects this commercial frequency voltage induced in the sensor tray 10, the driver circuit 22 and the output circuit 23 are activated and the operation signal S is output as the output of the detection device 20.
Occurs.

The operation signal S from the detection device 20 is transmitted to a center monitoring device (not shown) or the like, and the passenger compartment refrigerator R
You can know the use of.

Since the guest room refrigerator R is provided with the non-monitoring areas A2 and A3, even if the guest does not use the products M, M ... It is possible to improve the service for guests by storing their own property in the non-monitoring areas A2 and A3 or by placing free goods N and N in advance. Such non-monitoring areas A2 and A3 can be distinguished from the monitoring area A1 by simply partitioning the inside of the refrigerator R in the guest room, and can be provided very easily.

Other Embodiments A display unit 40 which is operated by the operation signal S from the detection device 20 can be attached to the outside of the passenger compartment refrigerator R (FIG. 4).

The display unit 40 includes a display box 41 and a character display unit 42.
And the speaker 43 are assembled.

The display unit 40 is connected to the detection device 20 via the output cord 30, and is activated by the operation signal S from the detection device 20. Therefore, the display unit 40 lights up the character display unit 42 to display a message prompting the user to declare the use of the guest room refrigerator R or outputs a similar message from the speaker 43 by voice when the detection device 20 is activated. be able to. Here, the character display unit 42 may be any as long as it can appropriately display a message prompting the declaration, and may be, for example, a screen display lamp or a liquid crystal display panel. Although FIG. 4 illustrates an example in which the display unit 40 is installed on the upper part of the guest room refrigerator R together with the binder P that binds the declaration form, the display unit 40 is shown.
May be installed at any other place. Further, the display unit 40 may use the operation signal S from the detection device 20 to superimpose a message prompting the declaration on the screen of the television receiver installed in the passenger room.

The detection device 20 can be installed in the passenger compartment refrigerator R together with the sensor tray 10, and the ground side, which is the potential reference point, can be connected to the housing of the passenger compartment refrigerator R. Since the passenger compartment refrigerator R is grounded, the noise resistance of the detection device 20 is enhanced, and therefore the sensitivity of the detection device 20 can be enhanced, so that the products M, M to be placed on the sensor tray 10
The use of not only cans but also bottles, bags such as snacks, and the like can be reliably detected. In addition, if the container for storing the snack is made of a conductive material, its detection can be made more reliable.

When the sensor tray 10 is provided with the monitoring area A1 on the upper side in the passenger compartment refrigerator R, by opening appropriate ventilation holes in the sensor tray 10, the lower side of the passenger compartment refrigerator R can be cooled more efficiently. it can.

In the above description, the detection circuit 21 of the detection device 20 may have any operating principle as long as it can detect that the products M, M ... On the sensor tray 10 are touched. For example, it may be one that detects a change in the capacitance between the ground of the sensor tray 10 and may be a high frequency oscillation type or a high frequency bridge type.

Effect of the Invention As described above, according to the present invention, a sensor tray made of a conductive material and a detection device that operates by touching a product on the sensor tray are provided. Since the monitoring area can be set simply by placing the sensor tray inside, installation work is extremely easy, and if necessary, a non-monitoring area can be easily set by partitioning the inside of the refrigerator. There is an effect.

[Brief description of drawings]

1 to 3 show an embodiment, FIG. 1 is an overall configuration perspective view, FIG. 2 is an electrical system diagram of a detection device, and FIG. 3 is a perspective view of a usage state. FIG. 4 is a perspective view of a main part showing another embodiment. R: Guest room refrigerator M: Product S: Operation signal 10: Sensor tray 20 ... Detection device 40 ... Display

Claims (2)

[Scope of utility model registration request] 1. A guest room refrigerator comprising a sensor tray made of a conductive material installed in a guest room refrigerator, and a detection device which is operated by touching a product on the sensor tray and outputs an operation signal. Monitoring equipment. 2. The guest room refrigerator utilization monitoring device according to claim 1, wherein a display unit which is activated by the operation signal is provided outside the guest room refrigerator.