KR0130054B1 - Long time custody alarmable refrigerator and control method of food - Google Patents

Abstract

A refrigerator structure having an alarm function of a long term storage of food having : a sensor means(6) serving as electric contacts by expansion due to left/right elastic bodies(4A,4B) when placing food on shelves(3); a ranking displayer(10) displaying the storage order of the food by using a MICOM(8) on the basis of the sensed signals; and a shelf displayer(13) displaying an usage period expiration signal by an internal counter of the MICOM(8) and an alarm sound; is disclosed. Thereby, it is possible to prevent the loss of food due to an usage period expiration and to enhance the freshness of the food.

Description

Refrigerator structure with long-term storage alarm of food and control method

1 is an explanatory diagram of a refrigerator system to which the present invention is applied.

2 is a circuit diagram.

3 is an explanatory diagram for explaining in more detail the specific portion of FIG.

4 is the algorithm of the present invention.

5 is an algorithm for checking the expiration date of the control method.

* Explanation of symbols for main parts of the drawings

1: freezer 2: cold storage room

3: shelf 4A, 4B: left and right elastic bodies

5A, 5B: Upper and lower contact plate 6: Sensor means

7: contact point 8: microcomputer

9: power supply unit 10: ranking display unit

11: control unit 12: segment

13 shelf display unit

The present invention relates to a structure and control method of a refrigerator equipped with a long-term storage alarm function of food, and more particularly, having a sensor means composed of an elastic body on a shelf to store food, which is killed when the food is placed on the shelf. The sensor means sequentially determines the output signal to indicate the storage order of the foods, and emits an alarm sound before the distribution period has elapsed, thereby completely eliminating the cabin of the food discarded due to the passage of the food distribution period. The present invention relates to a refrigerator structure having a long-term storage function and a control method thereof, which can of course improve food freshness by minimizing the possibility of food corruption.

In general, a refrigerator stores food at a low temperature by using cold heat obtained according to a cooling cycle. And, such frozen foods have a shelf life for consumers to eat foods safely and fresh, for example, these foods are foods such as milk or yogurt.

However, when the frozen foods stored in the refrigerator as described above are stored in the refrigerator, when the expiration date has passed, all of them have to be discarded, resulting in considerable food loss.

Therefore, in recent years, a method of installing a barcode reader in a refrigerator to recognize a barcode attached to the food and reducing the corruption of the food by the recognized signal is used.

However, the conventional refrigerator of the above-described method is very expensive bar code recognizer system that can recognize the bar code when installed in the refrigerator significantly increases the manufacturing cost and accordingly redesign the microcomputer and program for barcode recognition accordingly There was a problem that it is difficult to install in the actual refrigerator because it must.

Accordingly, the present invention has been invented to solve the above problems, and the sensor means consisting of an elastic body on the shelf to store the food to sequentially determine the output signal of the sensor means generated when placing the food on the shelf By indicating the storage order of foods and alarming immediately before the expiration date of the food, it is possible to completely eliminate the loss of food discarded due to the elapse of the food. It is an object of the present invention to provide a refrigerator structure having a long-term storage warning function of a food and a control method thereof, which can minimize the possibility of corruption and optimally improve the freshness of the food.

The present invention for achieving the above object is the expansion of the contraction by the elasticity of the left and right elastic material when the shelf is formed of a plurality of shelves to store various foods on the door side of the microcomputer and the refrigerating chamber, and the food is placed on the shelf And a sensor means adapted to serve as an electrical contact, a rank display unit configured to externally display the order of storage of food designated by the microcomputer based on the detection signal of the sensor device, and the microcomputer stored using an internal counter. It is characterized in that it comprises a shelf display unit for determining whether the food distribution period has elapsed and to generate an alarm sound to the outside based on the determined result.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 3, the refrigerator structure of the present invention includes a freezer compartment 1 used when rapid freezing is required, and a refrigerating compartment used when relatively long-term storage is required while preventing decay of food. 2). And the door side of the refrigerating chamber (2) is formed with a plurality of shelves (3) in the vertical direction to store a variety of food, this shelf (3) when the food is placed left and right elastic body (4a) (4b) The sensor means 6 is provided with the upper and lower contact plates 5a and 5b, which are contracted and expanded by the stretching force of the upper and lower contact plates, and the upper and lower contact plates 5a and 5b are electrically connected at the time of contact. The contact point 7 is formed to function.

Referring to the circuit configuration of the present invention with reference to Figure 2, the microcomputer (8) to control the overall function of the refrigerator system as a whole, and the power supply unit (9) to supply a bias voltage to the microcomputer (8) and The sensor means 6 detects whether the food is loaded on the shelf by the electrical contact action and transmits the food to the microcomputer 9 based on the detection signal of the sensor means 6. The ranking display unit 10 configured to display the storage order of the food designated by the outside, the refrigerator control unit 11 to drive the refrigerator system by the operation control signal of the microcomputer 8, and the microcomputer 8 The shelf counter 13 is used to determine whether the shelf life of the stored food has elapsed using the internal counter, and to display the segment 12 on the outside according to the result of the determination. .

Referring to the control method of the present invention having the configuration as described above are as follows.

In the present invention system, as shown in FIGS. 1 and 3, when the user first puts a food such as milk or yogurt on a shelf of a refrigerator, the acid contact plate 5a of the sensor means becomes food. Due to the weight of the lower contact plate (5b) will be in close contact. At this time, the left and right elastic bodies 4a and 4b are compressed and the electrical contacts 7 protruding from the upper and lower contact plates 5a and 5b are attached to each other.

Then, the bias voltage is input from the power supply unit 9 to the input port of the microcomputer 8 through the contacts 7 to execute the algorithm as shown in FIG.

That is, when the current flows through the contact point 7, the microcomputer 8 recognizes that the food is placed on the shelf of the refrigerator (100) and searches the data table (110).

If there is no preceding data by checking whether there is preceding data at the first address of the data table, the food data is loaded at the first address of the data table (111), and a display control signal is applied to the ranking display unit. The ranking display unit displays the storage order of the food (112), and counts the expiration date of the loaded food by operating the internal counter of the microcomputer (113).

On the other hand, when the first address of the data table is checked and the preceding data is already input, the address of the data table is increased (120) and the contents of the next address are searched (121).

Thus, if the preceding data has already been entered, the search returns to the previous step 120 and repeats the loop. If the preceding data does not exist, the food data is input to the corresponding address (122). Displaying the ranking in (123), as well as counting the expiration date of the food (124).

For example, if the preceding data is already entered in address 1 and 2 of the data table, the corresponding data is entered in address 3 of the data table, and the rank 3 is displayed in the ranking display unit 12 so that the user can select food according to the rank. Can be.

Thereafter, in order to determine whether the user has taken out the food loaded on the shelf, the contents of the data table are compared and searched in turn with the shear table (130).

If the contents of the search result data table is changed, the process returns to the previous step 100 and repeats the loop. If the contents of the data table change, that is, the number of data is reduced, the address of the data table is moved downward (131). If the address of the current data table is reduced from 3 to 2, move the address of the data table from 2 → 1, 3 → 2 because the data of address 1 is empty.

In addition, the ranking of the corresponding rank display unit is changed accordingly (132).

For example, when the user takes out food on a shelf corresponding to priority 1, the weight of the food is lost, so that the upper and lower contact plates 5a and 5b of the sensor means 6 are left and right elastic bodies 4a. It is restored by the stretching force of 4b) to release the electrical contact operation.

Therefore, since the bias voltage is blocked from being applied to the contact point 7 of the lower contact plate 5b, the low signal is input to the input port of the microcomputer 8.

Then, the microcomputer 8 causes the display signal of the rank display unit 12 to be displayed as 0 in the above step and the display signals of the remaining rank display unit 12 to be displayed based on the change in the rank of the data table.

Meanwhile, as illustrated in FIG. 5, the expiration date is checked according to the storage order of the loaded food, and first, whether the data exists at the first address of the data table is searched (200).

If the search result data does not exist, increase the address of the data table (210), then check whether the data table has been searched to the end (211), move the data table of the last address to the first address (212), and if it is not the last address, immediately Returning to the previous step (200), the loop is repeatedly executed, and if the search result data exists, the number of days checked by the counter of the microcomputer is compared with the food shelf life (220), and it is determined whether or not it has passed.

If it is determined that the distribution period has not elapsed, the process goes to step 210 of increasing the address of the data table and repeats the loop. The shelf life is displayed on the shelf display and the alarm sounds to notify the user that the food is about to expire.

As described above, the present invention is provided with a sensor means composed of an elastic body on the shelf of the refrigerator to store food to sequentially determine the output signal of the sensor means generated when the food is placed on the shelf to determine the storage order of food By displaying the alarm and sounding before the distribution time passes, it is possible to completely eliminate the loss of food discarded due to the passage of the food distribution period, and to minimize the possibility of food corruption. There is an effect that can be optimally improved.

Claims (3)

In a refrigerator system using a microcomputer (8) as a system controller, a plurality of shelves (3) for storing various foods on the door side of the refrigerating chamber (2), which is installed on the shelves (3) When mounted, the sensor means 6 contracts and expands due to the elastic force of the left and right elastic bodies 4A and 4B, and serves as an electrical contact, and based on the detection signal of the sensor means 6, the microcomputer ( Input signal indicating the storage period of the food stored by the 8) the rank display unit 10 to display the outside, and the distribution period elapsed signal as the microcomputer 8 determines whether the distribution period of the food stored by the counter has elapsed; Refrigerator structure with a long-term storage alarm function of the food, characterized in that consisting of a shelf display unit 13 to display this and make an alarm sound. According to claim 1, wherein the sensor means 6 is provided with a long-term storage alarm function of the food, characterized in that it is provided with an upper and lower contact plates (5a, 5b) protruding electrical contact (7), respectively. Refrigerator structure. When it is determined that the food data has been inserted according to the sensing operation of the sensor means (100), the step of retrieving the contents in the first address of the data table (110) and the preceding data during the step of retrieving the first address of the data table are performed. If not, input the food data at the address (111) and display the storage order in the ranking display (112) and counting the expiration date of the food according to the counter (113) and the first of the data table If the preceding data is already input during the checking of the contents in the address, the address of the data table is increased (120), and the contents of the next address are searched (121). Repeat the loop and if there is no preceding data, enter the food data at the corresponding address (122), display the ranking on the ranking display section (123), and count the expiration date. In step 124, after the step proceeds, the contents of the data table are compared with the previous table in order (130). If there is data in the address of the data table, the process returns to the previous step (100). During the step of reducing the address number of the data table (131) and correcting and changing the storage rank of the rank display unit (132) and counting the expiration date, the contents of the data table are sequentially searched (200). If present, compare the number of days checked by the counter with the expiration date of the food (220), and if the expiration date has elapsed, display the expiration date elapsed signal on the shelf display and generate an alarm sound (221). There is no data, and the address is increased (210) and then returns to the previous stage (200). Long-term storage of the alarm control method comprising refrigerator of food.