JPS59100911A - Displaying method of digital indicator - Google Patents

Abstract

PURPOSE:To obtain an inexpensive and small-sized device by switching a data displayed on a digital indicator by a display switching key, monitor-displaying it, and displaying it by one indicator. CONSTITUTION:A detecting signal from a sensor part 7 of a temperature, etc., and a set data by a program key in a key matrix circuit 1c are read in a microcomputer 4, they are compared, and by controlling the microcomputer, relays 3a-3d of an output relay part 12 are driven and controlled. A digital indicator 2 is provided on this microcomputer 4, and a time and timer display, etc. are executed. A display switching key is provided so that a display to this indicator 2 is executed by switching a data from the microcomputer 4, and by switching this key, a part of each digit display element of the indicator concerned 2 is used, and an operation data of an output apparatus such as a relay, etc., an input signal from a sensor part 7, etc. are displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of displaying the operating status of an inexpensive control device using a digital display. In general, this type of display device can display the operating status accurately and easily, and it occupies a small proportion of the device, and is cost effective. Must be cheap.

FIG. 1 is an operation panel diagram of a conventional control device. In FIG. 1, la is a numerical key, Ib is a program key, 2 is a digital display, and 3 is an individual display. 1st
In an inexpensive control device using a microcomputer in the figure, the program key 1b and numeric key 1a are used to input operating values or change functions.
Generally, the set value is displayed on the digital display 2, and the presence or absence of output, operation display, etc. are displayed on the individual display 3. For example, in air conditioners, these digital displays are generally used to display the set temperature and the indoor temperature.

Oki's equipment often deals with numerical values when setting data or functions, and these numerical values are displayed in English using a 7-segment display or a 5 x 7 dot matrix display.

It is often displayed using auxiliary symbols such as katakana and symbols.

Such a set of data and functions is a preparation means for devices using LSI such as microcomputers to work properly, and does not need to be displayed all the time. Therefore, in many devices, they are used to display the current time or the input level of a sensor. Many examples are digitized and displayed.

However, the really necessary displays such as operation display, presence/absence of output, and classification display of operation mode in the actual operating state of the device are usually determined by the two lights on/off of the individual indicators 3 such as lamps and LEDs. It is often displayed depending on the condition. Therefore, it is common for the thread preparation means to be equipped with two types of indicators: a digital indicator 2 and an individual indicator 30 for turning on/off. Since such a display (according to the source) uses a 2n month display, there are problems with the cost and size of the display, the circuit configuration for display is complicated, and the circuit that drives the display The microcomputer system itself becomes large-scale due to the increase in the number of terminals and the number of required ports, which is the origin of the overall cost increase.In general, the number of display devices tends to increase, so the increase in the number of display points The operating functions of the microcomputer also become complicated, and program development tends to become difficult.1゜In contrast, the present invention eliminates the above-mentioned drawbacks and provides a cheaper and more compact display device. According to the present invention, the purpose of this invention is to switch between displays, which were conventionally performed separately using a digital display and an individual display, on a single digital display under microcomputer control. - This is achieved by the following configuration.

Hereinafter, the present invention will be explained in detail based on examples. Second
The figure shows a circuit configuration of an embodiment of the present invention. FIG. 3 shows the microcomputer 4 in the embodiment shown in FIG.
(hereinafter simply referred to as a microcomputer) shows a functional diagram centered on the microcomputer.

The plow production according to the embodiment will be explained according to the configurations shown in FIGS. 2 and 3. The embodiments shown in FIGS. 2 and 3 are examples of application to a device similar to an energy saving device for controlling temperature in a store. The microcomputer 1 4 is supplied with power from a power supply reset circuit 5 connected to a commercial power supply via a transformer 6, and receives from the power supply reset circuit 5 not only DC power for the microcomputer but also a reset signal when commercial power is applied. . The power supply reset circuit 5 also includes a battery power supply for protection in the event of a power outage, and protects the data set in the RAM in the microcomputer 4. In addition, the power supply reset circuit 5 has a load of the device flIB! Power supply circuit for output relay to control (
(12V or 24V, etc.) is also built-in.

The functions of the microcontroller are mainly shown in Figure 3 (-'C'
y', but the log signal from the outside 27. Contact signal path.

As shown in the configuration diagram in FIG.
In addition to the alarm power 15 connected to the two circuits 2a to 2d, there is a key matrix circuit IC. The analog signal 27 from the sensor section 7 has its level converted by the level conversion circuit 8, converted into a digital signal by the A/D converter 9, and transmitted to the data reading means 17 via the sensor reading means 23. A contact code 28 is added as setting data to the program W- in a certain key matrix circuit lc, and the contact code 28 is read into the data reading means 17 VC via the contact reading means 24, for example, in the analog data value memory area 19 of the data setting means 18. to the operating value.

A return value is set, and the control 2 display means 16 compares the operating value and return value set in the data setting means 18 with the value read from the sensor level of the sensor section 7, and outputs the output relay section 12' under microcomputer control. four relays 3a
~Drives 3d.

If the sensor in sensor unit 7 is a temperature sensor, and the set operating value is 5°C and the reset value is 24°C, when the temperature detected in sensor unit 7 (detected by sensor unit 7) becomes 5°C or higher, analog operation is turned on and the output is turned on. Relay part 12 operates, 2
When the temperature falls below 5°C, the microcomputer 4 performs controls such as turning off the analog operation and stopping the output relay part 12. In addition, the key matrix circuit IC is provided with 0N10F and F switches for operating the output relay part 12 and relaying the duty control 2 such as 4-way return. Although not shown in FIG. 2, if this type of device has a function of transmission coupling with a center device, an address setting switch is provided in the key matrix circuit IC. To explain the operation of the key matrix circuit IC, the X marks in the figure simply represent combinations of diodes and contacts.

The common terminal of the resistors of the key matrix circuit 1c is connected to the ground (0■), and in order for the data reading means 17 to read the 0N10FF state of the contacts via the contact reading means 24, the microcomputer 4 requires the driver lc' (control) so that only one of the output terminals of the output terminal generates an output voltage. As a result, if the contact is ON, voltage is supplied from the driver lc' to the resistor via the diode → contact, and the input port of the microcomputer 40 becomes H level.If the contact is OFF, the contact Since it becomes open state, it becomes L level.In this way, the microcomputer 4
A strobe signal generating means 25 is provided to the next driver IC'.
By reading the signal level of the key matrix circuit IC via the data reading means 17 VC via the contact reading means 24 while sending a strobe signal through the VC, the 0N10F' F state of the contacts in the key matrix circuit IC can be read. . With such a key matrix circuit 1c, the analog operation value, return value, timer operation time, return time, or other data is stored in the timer value memory area 20 of the output relay 12 in the data setting means 18.
．． Each memory area 19, 20 in the data setting means 18
, 211c are set. Setting of such data is performed in the same manner as in the case of ordinary equipment, using the digital display 2 via the display control means 22 to guide the operator.

In FIG. 2, sensors 4a to 4d, ! 7 leh 3a~3
d, the reason that four receiving circuits 2a to 2d are provided each indicates that each one has one combination. For example, the alarm manual power 15 is connected to the receiving circuit 2b.
When K is input, the level of the signal is converted by the level changer 8a, read into the data reading means 17 via the alarm reading means 26, and the output relay part 12 is controlled by the control/display means 16.
The output relay 3b of the output link section 12 is forcibly turned off, and the output relay 3b of the output link section 12 is also controlled according to the output signal level of the sensor 4b of the sensor section 7.

FIG. 4 is a diagram of the operation panel of the digital display according to the embodiment of the present invention, showing a 7-segment, 8-digit display. The number of digits of the display and the number of display elements such as a 5×7 dot matrix are merely examples, and are not particularly related to the gist of the present invention.

In Fig. 4, 16 and 1a are numeric keys, lb' is a program key, and 22 is a digital display.To explain the program key 1b' in the figure, the set key is used to set a new program. A key to press,
The object keys (1) to (4) are keys for specifying which input/output of a - d is to be activated when setting the bujigram in the mode display, and are 2a, :3a, ja :(11).

2b, 3b, 4b: f21. ．． 2c, 3e, 4c:
131.2d, 3d, 4d: (corresponds to 41).

The C key is the clear key to cancel the program.

This key is used to release data or when a key operation error occurs.The duty control key, analog key, keypad key, and buzzer key are keys used when setting each program.The buzzer stop key is used when the buzzer is set to sound. This key is pressed to stop the buzzer that is ringing.The display switching key normally displays the current time, and when the display switching piece is turned on, the input signal is displayed in italics.

Monitor display is performed by switching between timer display and set display 1 time display under microcomputer control.

Fig. 5 shows an example of a display in which the present invention is applied to % 1-a. In Fig. 5, (4) is an example of a monitor display, and (B)
is an example of the display when setting the timer program, (C) is an example of the display when setting the analog operation program, and (D) is the example of the display when setting the analog operation program.
) shows an example of the display when setting the date program.It may be displayed like this all the time, or normally it is displayed along with the channel number of the sensor input signal, or the current time is displayed. The microcomputer may read the ON operation of the display switching key by the operator and make a judgment based on the result to switch the display.

In Figure 5 (Al), A is the relay activation state display section, B is the analog operation display section, D is the date control display section, E is the timer set state display section, and O is the output relay state display section. In part, force is a timer repetition display part, A is a two-stage thermo display, R is a buzzer display, and 7 to O can each display 4 numbers (1) to (4). A is analog operation. The display section shows whether the operating value and return value by the analog sensor are set.
Without a set of data, analog operation would be impossible. Therefore, if a - symbol is displayed in the segment of the display unit, it indicates that a data set exists, and if there is no mark, it indicates that there is no data set. It is also possible to indicate the presence of a functional set of two duty control display sections. The timer set state display section of the machine indicates the set state of the timer operation, and when this data is exceeded, the sh control of the relay is applied, for example, by an ON operation switch. The output relay display section of the output relay is displayed as mouth, which means that even if there is an operation command,
Depending on the state of the timer set and the analog input signal level, there are times when it operates immediately and times when it waits for operation.

Therefore, the display on the relay activation state display section (a) indicates whether or not the relay is in the control state. The timer repetition display section shows the timer operation time and return time (time works at the same time every day). The evening buzzer display indicates that the buzzer is connected to one output relay (Bl timer program).

For example, when the timer is displayed, the timer is turned on.

OFF' time is set to 21.1406.2 by microcomputer control.
4 and displayed on digital display 2,
The 4 digits on the left, 21.14, indicate the ON time, and the 4 digits on the right, 0.
624 indicates the OFF time.The ON10 FF value of the display when fcl is set to analog operation is set by the program key 1b.
By microcomputer control, the input from
It is set to turn off when it reaches N and reaches 24.0. (])l is de1. - In the case of data control in the display when setting the tee program, within a certain period of time T,
The OFF time ratio "'/TX 100 (in charge) can be set using the two digits on the right. These (Al~fDl)
can be displayed on one digital display by switching modes.

In this way, the flow of data to the device using the key matrix circuit IC is carried out using the display 2, which is almost the same as in general electronic devices and devices.

The configurations of the diagrams described so far only show one example of this invention, and these functions themselves are as follows:
This does not particularly restrict the content of this invention. The content of the present invention is the fifth
As shown in the example shown in the figure, a digital display is used to show the operating status of the output relay, the activation status of the relay, and other control status using a tempo diagram that is easy to understand for the operator. In addition to display examples of early 5 diagrams,
anything is fine. For example, a 7-segment display can only represent the mouth, but a 5x7 dot matrix can represent the operation of an output relay in a shape more similar to a circle. It is also possible to make it into a shape similar to that of a kara. As shown in FIG. 5, the K i indication method is shown in an L shape, and has a specific meaning depending on its position. Therefore, a name plate or an explanatory diagram is attached around the display so that the meaning can be understood. For example, it is necessary to display the right end of the display so that it can be understood that it indicates the output state of the output relay 33 and the meaning of the activation set of the relay.

Figure 5 is an example of a display of 8 digits, which may be separated into two 4-digit numbers, or may be increased to 12 digits and the display contents may be divided.

In this way, the present invention attempts to display the shape of the operation set, the operation status of the output relay, etc. by mode, using a plurality of figures.

According to the present invention, the digital display not only simply displays alphanumeric characters, but also graphically indicates the data setting status, control status of each liquor, and output status.

As a result, an inexpensive and compact display device can be provided without providing a separate display device.

In Figure 5, these status displays include 4 output relays, 4 relay activation status, 4 analog reverse rotation, 4 duty control, 4 timer set status, and 3 other items, for a total of n points. has been done. However, if there is a purpose that is difficult to understand with such a display, an individual display may be provided using a normal method. However, when these individual displays are actually used, an extremely large amount of space is required.
In addition to increasing the size of the microcomputer system, we will also increase the number of control units in terms of '/7). In contrast, if the method shown in Fig. 5 is used, the R and A M data in the microcomputer are simply switched, so there is no need to operate the large pot output part of the microcomputer system.1. The entire shaft configuration can be extremely simplified.

The present invention can be used for general purposes in electronic devices having digital displays.

[Brief explanation of the drawing]

Fig. 1 is a diagram of the operation panel of a conventional control device, Fig. 12 is a diagram of the circuit board and configuration of an embodiment of the present invention, and Fig. 3 is a functional diagram centered on the icon part of Fig. 2. Figure 4 is a diagram of the operation panel of the digital display according to the embodiment of the present invention, and the fifth cause is the display example of the dental display shown in Figure 14.
The diagram is shown below. 1a...Number keys, ib, lb'...Program keys. 2...Digital i/indicator, 3...Individual display, 4...
...My po computer, 5...Power reset circuit. 6...Transformer, 7...Sensor part +4a~4d...
・Sensor. 8.8a...Level conversion circuit, 9...A/D converter. 1c...key matrix circuit, 1c'...drag.
fha. 12... Output relay part ram~3d... Relay, 13... Tube layer receiving section +2a~2d... Receiving circuit, 15... Alarm input, 16... Control-display means, 1
7...Data reading means, 18...Data set)・
Means, 19... Analog data value memory area. 20...Timer value memory area, 2J...Others,
22...Display control means, 23...Sensor reading means,
24... Means for inputting points, 25... Means for generating a strobe signal, 26... Reading of news. 27...7 najig signal, 28...contact signal, a.°
・Relay start status display section, A: Analog operation display section, 2: Duty control display section, Work: Timer set status display section, O: Output relay display section, Power...・Timer repeat display section, key...two-stage thermometer display section, r...buzzer display section.

Claims (1)

[Claims] The control data is set in advance, and the input signal from the detector is taken in to control the output device based on the control data. and a display switching key for switching, and by operating the display switching key, the display elements of the display elements of each digit of the digital display are partially used to display the operating status data of the output device, the setting status of the control data, or the display element of the display element of each digit of the digital display. A display method for a digital display, characterized by displaying input signals, etc. on a monitor.