JPH03158685A - Alarm display device - Google Patents

Abstract

PURPOSE:To enable decision of a chamber to which abnormality occurs by a method wherein when temperature abnormality occurs in the interior of the chamber of a refrigerator, temperature display of a temperature display device corresponding to the chamber is flickered. CONSTITUTION:A temperature display panel 9 mounted in a spot well seen from the outside of a refrigerator is provided with display devices 10, 11, and 12 for temperatures in chambers A-C to display temperature in the chambers A-C, and an alarm display device 13 to turn ON when temperature abnormality occurs in some of the chambers A-C. Based on temperature data inputted from an A-D converter 7, temperature display data and alarm display data are outputted from a CPU 8 to the display devices 10, 11, and 12 for temperatures in the chambers A-C and the alarm display device 13, and digital display is effected through an interface circuit 14. Usually, digital display of temperature in a chamber is effected in a static state on the display devices 10, 11, and 12 for temperatures in the chambers A-C. But, when temperature abnormality occurs in the chamber B, control is effected such that simultaneously with turn ON of the alarm display device 13, temperature display of the display device 11 for temperature in the chamber B is flickered.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an alarm display device for reporting an abnormal temperature inside a storage warehouse having a plurality of interiors.

(B) Conventional technology In recent years, in the industrial fields of restaurants and food distribution, large-scale storage units (1) that have multiple compartments and each compartment is cooled and controlled at different temperature ranges (for example, commercial refrigerators) have become popular. are doing.

In that case, if an abnormality occurs inside the refrigerator, such as an abnormal temperature,
Alarms were issued using the representative alarm display or the alarm display corresponding to each warehouse.

(c) Problems to be solved by the invention However, with these conventional methods, in the former case, although it is possible to know the abnormality from the alarm indicator, it is not possible to quickly determine which part of the refrigerator is abnormal. In the event of an abnormality, it could be determined only after comparing the current temperature inside the refrigerator and the set temperature for each chamber, which was time-consuming. In addition, the latter method requires as many alarm-only indicators as there are in the refrigerator, which increases the number of circuits and parts, and there is also the risk of overlooking the indicators because they are usually not paid attention to.

The present invention has been made in view of the above points, and provides an alarm display device that is capable of displaying alarms in response to abnormalities in each refrigerator by using the temperature display inside the refrigerator that is normally seen. The purpose is to

(d) Means for Solving the Problems In the alarm display device of the present invention, the temperature display of the temperature display corresponding to the inside of the refrigerator where an abnormality has occurred among the refrigerator temperature display devices that are normally viewed is made to blink. It is something.

(e) When an abnormality occurs, the temperature display on the temperature display corresponding to the inside of the refrigerator changes from a static display to a blinking display, so that the abnormal inside of the refrigerator can be immediately identified. Since the internal temperature indicator is frequently watched, abnormalities can be detected quickly. And separately,
It becomes possible to display an alarm by using a refrigerator temperature display instead of a dedicated alarm display or a corresponding alarm display for each refrigerator.

(f) Example An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 shows a circuit block diagram of the alarm device of the present invention.To explain with reference to the figure, there is a ~C temperature sensor in the refrigerator! , 2.
The output voltage of 3 is A-D at each amplifier 4, 5, 6.
The level is converted by 10° to match the input level of the converter 7. The A-D converter 7 converts the temperature data in the refrigerator, which is instructed by the CPU 8, from an analog value to a digital value, and transfers the data to the CPU 8. 9 is a storage (not shown)
This is a temperature display panel installed in a place that can be easily seen from the outside of the refrigerator.This is a temperature display panel that is installed in a place that can be easily seen from the outside. An alarm indicator 13 is provided that lights up when a temperature abnormality occurs in A-C. And these internal A-C temperature indicators 10
, 11, 12, and the alarm display 13, the CPU 8 outputs temperature display data and alarm display data based on the temperature data input from the A-D converter 7, and these output data are digitally displayed through the interface circuit 14. Ru.

By the way, the feature of the alarm display device of the present invention is 1. Normally, the internal A-C temperature display 10, 11.12 has the following:
The temperature inside each refrigerator is displayed numerically in a static state, but if an abnormal temperature occurs in a certain refrigerator, for example, inside B, the alarm display 1 will be displayed.
3 lights up, display control is performed such that the current temperature displayed in the temperature display 11 of the inside B where the abnormality has occurred blinks. As a result, the user can easily notice the abnormality through the alarm display 13, and
And the internal A-C temperature display 10, 1 is blinking.
1.12, it is possible to immediately determine in which warehouse the abnormality is occurring.

Regarding the above temperature abnormality alarm, the flowchart for generation of standard timing for temperature display blinking and temperature abnormality determination is shown in the second section.
Shown in the figure. To explain with reference to the figure, first, process 21
Count the timer for 1 sec (seconds) and make judgment 22.
If 0.5sec count Y, 0.5secFLA
Perform processing 23 to set G (hereinafter abbreviated as FL),
If the time does not reach 0.5 sec in the judgment 22, N is the process 2.
Jump to the abnormality judgment flow starting from 7, 0.5 seconds
FLt! , Set, it is judged in judgment 24 whether 1 sec has been counted, and if it has not reached 1 sec, N goes to the abnormality judgment as before, and Y and Sec that have reached 1 sec.
Process 2 to Re5et the 0,5sec FL that was
5, and then 1 sec timer clear process 26
do. As a result, 0.5sec FL becomes 0.5sec
Repeat Set and Re5et every c, this 0.5s
Using ec FL, the display is made to blink according to the routine shown in FIG. 3, which will be described later.

By the way, in the temperature abnormality determination starting from process 27.

First, the process 27 of reading the data of the temperature sensor l inside the refrigerator
4. Then, in judgment 28, it is judged whether the data has reached a predetermined alarm temperature.4. If it has reached, Y performs the process 29 to set the internal A abnormality FL. If not, N performs the process 30 to Re5et the internal A abnormal FL.
At the same time, the processes and determinations shown in 31 to 38 are executed for chamber interiors B and C using the same routines with the same numbers to determine an abnormality.

FIG. 3 is a flowchart for causing the internal temperature display to blink when an abnormality occurs.

First, according to the flow shown in FIG.
If the abnormal FL is set as a result of the 0 judgment that determines whether or not there is an abnormal FL, V is 0.5 sec F.
Judgment 43 is made as to whether L exists or not, and if 0.5 sec FL is set, Y will “blank” 1 display data.
Perform the process 44 to set the data, and also 0.5 sec
N if FL is not set, and N if A abnormal FL is not set, sets internal A temperature data.
As a result, if the abnormal FL is set, "blank" data and "temperature data" are set in exchange every 5 seconds. Also, when setting the blank data, the alarm display data is set L/, thereby lighting up the alarm display 13. At other times, Re1i6t is performed.

Next, a process 46 for outputting this display data to the display device is performed. Similarly, processes and determinations shown in numbers 47 to 58 are executed in the same routine for inside B-C.

(G) Effects of the Invention As described above, the alarm display device of the present invention can be used in a storage warehouse having a plurality of compartments, when an abnormal temperature occurs in the compartment.
Since the temperature display on the internal temperature indicator corresponding to the inside of the refrigerator is made to blink, it is possible to immediately determine which inside of the refrigerator is causing an abnormality by the flashing. Since the temperature display inside the refrigerator is often watched by the user, by blinking the temperature display, there is no risk of overlooking the temperature display, and this becomes an effective warning display. In addition, this refrigerator temperature indicator can be used as a substitute for the conventional alarm indicator without using a dedicated alarm indicator, and it has many effects such as being simple in structure and inexpensive in cost.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram of the alarm display device of the present invention, FIG. 2 is a flowchart for determining temperature abnormality, and FIG. 3 is a flowchart for blinking the internal temperature display when an abnormality occurs. 10.11,12...Temperature indicator and indicator for internal temperature. 13...Alarm table (Figure 1 Figure 2) Prisoner AA Doi Kotake, Prisoner B Pass Hisatake, Atsunai blood reaction Kutsutsubohi NL)

Claims (1)

[Claims] Equipped with a storage warehouse with multiple compartments and an internal temperature indicator installed corresponding to each compartment, and if a temperature abnormality occurs in each compartment, the temperature display corresponding to that compartment will display the temperature. An alarm display device characterized by blinking.