JPS5849904B2 - Reizoukono Shuyuukanri System - Google Patents

Description

[Detailed description of the invention] The present invention relates to a centralized management system for refrigerators.

A centralized refrigerator management system is a system installed in each guest room of accommodation facilities such as hotels and inns (hereinafter simply referred to as hotels) so that guests can freely take out refrigerated contents such as beer and juice according to their preference. Refrigerators can be managed centrally at the front desk, counter, etc. (hereinafter simply referred to as the front desk), and when guests check out, they are charged an amount according to the consumption of the contents of the refrigerator in addition to the accommodation fee. It has the effect of automatically and quickly calculating and billing, preventing omissions in billing, and omitting the trouble of checking the consumption of the contents of the refrigerator.

In particular, the present invention has a main feature in such a system in that the condition of the refrigerator installed in each guest room can be easily checked at the front desk.

A detailed description will be given below with reference to the drawings.

FIG. 1 is a block diagram showing the outline of the system of the present invention, and 1 is a refrigerator block consisting of refrigerators 2, 2, etc. installed in each guest room, and each refrigerator 2, 2 of the block 1 is
... are electrically connected via a transmission path 3 to a central management device 4 disposed at the front.

This central management device 4 is associated with a control section 5, a certain operation section 6 from an operation key, and each refrigerator 2, 2..., respectively,
It is separated from the display lamp group 7 for displaying the status of each of the refrigerators 2, 2, . . . .

Figure 2 shows an example of the refrigerator 2 installed in each guest room. In the figure, 11 is the outer door of the refrigerator 2, which is normally closed. A locking mechanism (not shown) is associated therewith, which can be accessed based on a command from the central management device 4 only when a person checks in.

12.12... is a take-out window for taking out contents that require refrigeration such as beer and juice, and these windows 12, 12...
Each time the contents are opened and the contents are removed, transmission line 3 is sent to the central control unit
A signal is transmitted through the central control unit 4 to store in the memory of the central management unit 4 what has been taken out of the refrigerator of which guest room.

Reference numeral 13 denotes a replenishment door that opens when replenishing contents such as beer and juice, and this door 13 has viewing windows 14, 14, . It is provided.

An example of the central management device 4 is shown in FIG.
and the refrigerators 2, 2, . . .
A display section 16 that displays the quantity of contents dispensed from the refrigerator, and display lamps 17 provided behind the display section 15 and associated with the refrigerators 2, 2, etc. installed in each guest room. , 17....

Next, a more detailed explanation will be given of the control system of the system of the present invention shown in FIGS. 1 to 3.

FIG. 4 is a block diagram of this control system, and for the sake of simplicity, this figure shows the case where there are three refrigerators 2 and the contents stored in the refrigerators 2 are six items. .

Each refrigerator 2, 2.2 has a door switch 20 that generates a door open signal when the door 11 is opened, and a door switch 20 that corresponds to the six contents, respectively, and each time the contents are taken out from the refrigerator 2. An item switch 21 that generates an item identification signal, an encoder 22 that creates a coded signal from each signal from these switches 20.21, and a lock control signal that is obtained via a cable 23 from the central control unit 4. A lock solenoid 24 is provided to unlock the refrigerator 2 and take out the contents.

The central management device 4 has a data selector 25 that selects which refrigerator the encoded signal from each refrigerator 2, 2.2 obtained via the transmission line 3 is from. Is the coded signal sorted by each refrigerator? , 2.2, the decoders 26, 26 provided corresponding to
．． 26 and demodulated into a door opening signal and an item signal by each decoder 26, 26.26, the item signal is applied to an arithmetic control circuit 27, and the opening/closing signal is applied to a gate circuit group 28 serving as a display control means. The voltage is applied to the indicator lamps 17, 17.17 corresponding to the respective refrigerators 2, 2.2 of the indicator lamp group 7.

This gate circuit group 28 is a flashing signal source 29, 2 triggered by the door opening signal from each decoder 26, 26.
9.29 and prohibition gates 30, 30.3 that prohibit lock control signals for the refrigerators 2, 2.2 obtained from the operation unit 6 based on door opening signals obtained from the decoders 26, 26.26.
0, the gate output from each inhibit gate 30, 30.30, and the blinking signal from the blinking signal source 29, 29.29. 31, and this OR gate 31, 31 . The blinking of each display lamp 17, 17.17 is controlled by the gate output of 31.

32 is a memory connected to the arithmetic control circuit 27.

Next, the operation of the system of the present invention will be described.

Prior to the explanation of the operation, the encoding operation in the encoder 22, 22.22 of each refrigerator 2, 2.2 will be explained.

When the number of items stored in the refrigerators 2, 2.2 is six, the transmission path 3 is composed of three lines, and a 3-bit coded signal is transmitted.

In the initial state, if the door 11 of the refrigerator 2, 2.2 is closed, the door switch 20, 20.20 will not operate and the door open signal will not be obtained, and since the door 11 is closed, the item switch will not operate. 21 does not operate and no item identification signal is obtained.

Therefore, in this case, the encoder 22 provides a coded output of "o o o" in which all three bits are logical If II.

When the door 11 is opened, a door open signal is applied to the encoder 22,
From the encoder 22, only the least significant bit of the 3 bits is set to logical II I I+ II o O I I
A coded output of f is obtained.

In this state, among the contents in the refrigerator 2, for example, item (A)
When the item (A) is taken out, the contact of the item switch 21 corresponding to the item (A) is closed and the item identification signal is output to the encoder 2.
2 and from the concoder 22 11 0 1
A coded output of 0 1+ is obtained.

When item (B) is taken out, an output of "0 1 1" is obtained.

Similarly, FIG. 5 is a table showing the status of the encoding operation performed by the encoder 22.

Next, the operation of the system of the present invention will be explained.

In the initial state where no check-in has been performed, each door 11 is locked by the action of the lock solenoid 24, 24.24 of each refrigerator 2, 2.2, and the contents cannot be taken out from the refrigerator. do not have.

In this initial state, a lock control signal cannot be obtained from the operation unit 6, and a demodulated door opening signal cannot be obtained from each decoder 26, 26.26, so the indicator lamps 17, 17, 17
does not light up.

For example, if a guest staying in a guest room in which a refrigerator 2' is installed checks in, the user operates the operation unit 6 of the central management device 4 to generate a lock control signal to unlock the refrigerator 2'. The lock solenoid 24' is operated so that the contents can be freely taken out from the refrigerator 2'.

Once the lock control signal for this refrigerator 2' is obtained,
This signal lights up the indicator lamp 17' via the inhibit gate 30' and the OR gate 31, indicating that the refrigerator 2' is unlocked.

Similarly, when a guest staying in the guest room checks in, the outside refrigerators 2, 2 are unlocked, and at the same time, the corresponding display lamps 17, 17 are turned on.

When a guest wants to eat or drink beer or the like from the unlocked refrigerator 2', he or she first opens the door 11 of the refrigerator 2', then takes out the desired contents and eats or drinks. Opening the door 11 activates the door switch 20' and applies a door open signal to the encoder 22'.

As a result, from this encoder 22' ++ o o II
A + coded output is obtained, and this coded output is applied to the data selector 25 via the transmission line 3.

The data selector 25 selects from which refrigerator the encoded output obtained at this time is output, and sends this encoded output to a decoder 26' corresponding to the refrigerator 2'.

This decoder 26' demodulates the coded output of G-1 "0 0 1", obtains a door opening signal, triggers the blinking signal source 29, generates a blinking signal, and at the same time opens the lock signal obtained from the operating section 6. The control signal is prohibited by the prohibition gate 29.

Therefore, only the blinking signal from the blinking signal source 29 is valid and the OR gate 31' is obtained, and this signal is transmitted to the display lamp 17'.
is applied to cause the lamp 17' to blink.

Next, when an item (A) corresponding to beer, for example, is taken out from the refrigerator 2', the item switch 21' is activated and an item identification signal is applied to the encoder 22'. A coded output If o 1o I+ is obtained with the door opening signal.

This I! o 1o I+ coded output is transmission line 3,
Item (A) is sent to the decoder 26' via the data selector 25.
The signal is demodulated and recorded in the arithmetic and control circuit 27, thereby causing the memory 32 to store that the contents of item (A) have been taken out from the refrigerator 2'.

Since the door 11 remains open even when the contents are taken out, the indicator lamp 17' continues to blink.

For the items (BXC), etc., encoded outputs shown in FIG. 5 are similarly produced by the encoder 22', transmitted to the central control unit 4, and stored in the memory 32 according to each item.

After the desired contents are taken out, the door 11 is closed, so the door open signal disappears, and the operation of the blinking signal source 29' is stopped.
The lamp 17' stops blinking, and the lamp 17'
returns to the continuous lighting state based on the lock control signal from the operation unit 6.

For refrigerators other than this refrigerator 2', the same applies to door 1.
1 is opened, the corresponding display lamp 17.17 blinks, and each time the contents are taken out, the situation of taking out the contents is stored in the memory 32.

When a guest checks out, he or she operates the operation unit 6 to read out from the memory 32 information on what and how much content has been taken out of the refrigerator 2' in the room in which the guest has stayed, and displays it on the display unit 16. The appropriate amount will be added to the accommodation fee and billed.

When the check-out is completed, the contents of the memory 32 that stores the state of taking out the contents from the refrigerator 2' of the guest room are erased to prepare for the check-in of the next guest. to open refrigerator 2 in that guest room.
The lock control signal for the refrigerator 2' disappears, and the lock control signal for the refrigerator 2'
The device is locked so that the contents cannot be taken out, and the corresponding indicator lamp 17' is turned off.

As described above, the present invention causes the central management device to light the display lamp provided corresponding to the refrigerator in response to unlocking of the refrigerator, and to blink the corresponding display lamp in response to the opening of the refrigerator door. Equipped with a display control means, each refrigerator can be displayed with a single lamp to display three states: locked, unlocked, and door open, allowing you to check the refrigerator's status at a glance. It is possible to prevent the deterioration of the refrigeration function due to forgetting to close the door of the refrigerator, as well as accidents such as power wastage, and also to save on the number of display lamps.

In addition, since the door open signal obtained when the refrigerator door is opened is superimposed on the transmission line that carries the identification coded signal of the contents of the refrigerator, a dedicated circuit is used to transmit the door open signal to the central control device. There is no need to provide a transmission system, which makes it possible to simplify the structure and reduce the cost of installing the transmission system.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the outline of the system of the present invention;
Figure 3 is a perspective view of a refrigerator used in the present invention, Figure 3 is a perspective view of a central control unit used in the present invention, Figure 4 is a block diagram showing the control system of the system of the present invention, and Figure 5 is a code according to the present invention. A table showing the status, 2 is a refrigerator, 3 is a transmission line, 4 is a
is a central control unit, 6 is an operation unit, 7 is a group of display lamps, 17
is an indicator lamp, 20 is a door switch, 21 is an item switch, 22 is an encoder, 24 is a lock solenoid, 25 is a data selector, 26 is a decoder, 29 is a flashing signal source,
30 indicates a prohibition gate, respectively.

Claims (1)

[Claims] 1. A refrigerator installed in each guest room in a central refrigerator management system in which a refrigerator is installed in each guest room of a hotel, and the front desk centrally manages the status of taking out the contents stored in the refrigerator. There is a central control device located at the front that centrally controls each refrigerator, and each refrigerator has a door that can be opened to take out stored items, and a door that can be locked and unlocked. and a door switch that detects the open state of the door. It is connected to the operation part that controls the lock status and the above indicator lamp,
A display control means that lights up a corresponding indicator lamp when a refrigerator door unlocking operation is performed from an operation unit, and blinks an indicator lamp corresponding to the refrigerator when a door switch of the refrigerator detects that the door is opened. A centralized management system for refrigerators equipped with and. 2. In the system according to claim 1, a transmission path is provided between the central management device and each refrigerator for transmitting a coded signal for identifying the item of contents taken out from the refrigerator. A central control system for a refrigerator, characterized in that a pickup item identification code signal is placed on the transmission path, and a door open signal generated by a door switch when the door of the refrigerator is opened is also superimposed.