JPH0391679A - Temperature display - Google Patents

Abstract

PURPOSE:To display an appropriate temperature in a box by judging whether the temperature sensed by a temperature sensing device is within a set temperature range, when within the range, outputting to display a set temperature determined in advance within the set temperature range and, when out of the range, outputting to display the sensed temperature as it is. CONSTITUTION:A temperature in a box is set to a desired value, a temperature range including the set temperature value is determined and whether a temperature detected by a temperature sensing device 1 is within the determined temperature range is judged. Since, when the detected temperature is within the determined temperature range, the actual temperature of goods in the box can be judged to be near the set temperature, the set temperature is displayed on a display unit 4. When the detected temperature exceeds the determined temperature range, the temperature in the box is estimated to be abnormal, so that the detected temperature is displayed as it is. The temperature range is set in expectation of a temperature rise in the box due to a door opening for charging the goods, a set temperature as compared with an expected temperature is displayed and a temperature identical to the temperature of the goods for sale is displayed without the detected temperature being displayed as it is. Thus, the appropriate display of the temperature in the box can be executed.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a vending machine that sells products while keeping them cold or hot, and particularly relates to a temperature display device that can display an appropriate internal temperature. Regarding.

(B) Conventional technology Traditionally, the temperature inside the vending machine cabinet has been displayed on the outside front of the vending machine for reasons such as ensuring thorough hygiene control of the contents and providing peace of mind to customers. . This display is difficult to detect directly by directly touching the temperature sensor to the product because the contents of the product move as the product is sold. Therefore,
The ambient temperature of the product, that is, the internal temperature of the product is displayed. For example, it is disclosed in Japanese Utility Model Application No. 56-27780. In this publication, temperature data obtained by a temperature detection section 2 provided inside the refrigerator is displayed as it is on a display section 4.

(C) Problems to be Solved by the Invention In the prior art disclosed in the above-mentioned publication, in which the temperature detection section detects the ambient temperature inside the refrigerator and displays it as is, the actual product temperature is displayed. There is a difference in temperature.

Therefore, for example, when the door is opened to fill a product, the ambient temperature inside the warehouse will rise rapidly due to the entry of outside air, resulting in a significant difference between the actual temperature of the product and the displayed temperature. display temperature is high and product temperature is low). Therefore, even though the actual temperature of the product is not as high as shown on the display, the external temperature display will display a high temperature, so the customer will see this and decide whether to preserve the product. There was a problem in that the sales rate decreased because people felt anxious about the (hygienic) conditions and avoided purchasing the products.

The present invention was made to solve the above problems, and it is possible to always display a temperature close to the product temperature without being affected by temporary temperature changes in the refrigerator due to product filling, etc. It is an object of the present invention to provide a temperature display device that displays the actual sensed temperature when it is determined that the temperature exceeds the range.

(d) Means for Solving the Problems The temperature display device according to the present invention includes a temperature sensing part that senses the temperature inside the refrigerator, and a temperature sensing part that determines whether the sensed temperature of the temperature sensing part is within a set temperature range. , a control unit that displays and outputs a predetermined set temperature within the set temperature range if it is within the range, and a display unit that displays and outputs the sensed temperature as it is if it is outside the range; and a display unit that displays the set temperature or the sensed temperature. It is composed of.

(e) Setting the desired temperature inside the refrigerator, determining a temperature range that includes the set temperature, and determining whether the detected temperature detected by the temperature detection section is within this temperature range, If the temperature is within the temperature range, it can be determined that the actual product temperature is close to this set temperature, so the set temperature will be displayed on the display, and if the detected temperature exceeds the temperature range, it will indicate an abnormality in the internal temperature. Therefore, the detected temperature is displayed as is.

In this way, instead of displaying the detected temperature as is,
A temperature range is set in anticipation of the rise in temperature inside the refrigerator when the door is opened during product filling, etc., and the set temperature is displayed by comparison with that range, and the temperature is displayed to be equivalent to the temperature of the product being sold.

(F) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. 1st
The figure is a block diagram related to the temperature display device of the present invention, and FIG. 2 is a flowchart for displaying an appropriate refrigerator temperature.

First, in FIG. 1, reference numeral 1 designates a temperature sensor, that is, a temperature sensing section, provided at an appropriate location within the refrigerator, and outputs a sensed value as an electrical signal. Reference numeral 2 denotes a temperature detection circuit which converts the electrical signal from the temperature sensing section 1 into a temperature value and outputs it to the control section 3 as temperature data. The control section 3 analyzes and judges the temperature data from the temperature detection circuit 2, and outputs it to the display section 4 based on the result. The control section 3 includes a storage section, a comparison/judgment section, etc., and the storage section stores a desired set temperature X ('C) in the refrigerator and a temperature range Y that includes this set temperature.
('C) to z(''c) are stored in advance, and the sensed temperature w (°C) sensed by the temperature sensor l is captured and stored at any time via the temperature detection circuit 2. The judgment unit determines whether the sensed temperature w("c) is within the temperature range,
In other words, as a result of one judgment to determine whether the formula Y(''C)≦V≦z('c) holds, if the temperature is within the range, the control unit 3 displays the set temperature X('C) on the display unit 4. If the temperature exceeds the temperature range, a signal indicating the sensed temperature v('c) is output as is.Here, the control unit 3 controls the operation of the vending machine, and the temperature range is exceeded. Regarding the display, data obtained from temperature detection circuit 2 (temperature information)
The display operation of the display unit 4 is controlled based on this. Further, the temperature detection circuit 2 is composed of a microcomputer.

Next, the process will be explained based on the flowchart shown in FIG. When the power is turned on (100), the desired temperature inside the refrigerator can be set. Now, if the set temperature is set to I can do it (101). Then, the temperature is detected by the temperature sensor 1 (102), and the obtained internal temperature w("c)
Set the measured data in the storage section of the control section 3 (
103).

Next, it is determined whether this set data is within the set temperature range (y-z) described above (104), and if the detected internal temperature W ("C) is Y≦S≦2 ( YES)
, displays the set temperature x (°C) on the display section 4 (105)
, if it is outside the set temperature range (Y℃~z℃) (No), 10
In step 3, the actual detected warehouse temperature W (°C) set in the storage section of the control section 3 is retrieved from the storage section, and the same warehouse temperature V is retrieved from the storage section.
('C) is displayed as is on the display section 4 (106). Then, the process returns to temperature sensing at 102 again. Therefore, for example, when the door is opened when filling a product, the temperature inside the refrigerator, which was close to the set temperature x ('c), increases by Δt ('C), resulting in
Even if the same temperature X+Δt('C) is within Y'C-Z'C.

Since the temperature increase is a temporary phenomenon and the product temperature itself has not risen that much, we decided to display the set temperature X (℃), which is almost the same as the product inside, to make customers feel anxious when selling. It is possible to avoid giving

Conventionally, the temperature detected by the temperature detection section 1 is displayed as is, and the customer judges that the temperature of the product is not appropriate and refrains from purchasing it, but this can be eliminated with the present invention. When the actual temperature exceeds the set temperature range, the temperature that is too high or too low is displayed as is, and the administrator can see the abnormality in the temperature inside the refrigerator and take prompt action. urge.

(G) Effects of the Invention As described above, according to the present invention, a temperature range is determined for the desired set temperature in the refrigerator, it is determined whether or not the actual sensed temperature is within this temperature range, and the temperature range is determined within the range. In that case, the set temperature is displayed, and if it is outside the range, the actual detected temperature is displayed.For example, even if the temperature inside the refrigerator rises due to opening the door while filling the product, it is treated as a temporary phenomenon. Therefore, the temperature increase is not displayed, and the display section can always display the same temperature as the temperature of the product being sold. Therefore, it is possible to appropriately display the temperature inside the refrigerator, and it is possible to eliminate the conventional drawbacks of displaying a temperature that is significantly different from the product temperature, causing customers to feel uneasy and reducing the sales rate. If an abnormality actually occurs in the temperature inside the refrigerator, the abnormal temperature is displayed, which can provide a clue for the administrator to know about the abnormality.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a temperature display device according to the present invention;
FIG. 2 is a flowchart of the temperature display device. 1...Temperature sensing section, 2...Temperature detection circuit, 3...
Control unit, 4...Display unit.

Claims (1)

[Claims] A temperature sensing section detects the temperature inside the refrigerator, and it is determined whether or not the temperature sensed by the temperature sensing section is within a set temperature range, and if it is within that range, a predetermined set temperature is set within the set temperature range. 1. A temperature display device comprising: a control unit that displays and outputs the sensed temperature as it is if it is outside the range; and a display unit that displays the set temperature or the sensed temperature.