JPH03197894A - Weather tendency device - Google Patents

Abstract

PURPOSE:To reduce the power consumption and to make a display in motion with simple constitution by providing a display position control circuit which applies a display device with a signal for moving a weather display to a display position. CONSTITUTION:When the atmospheric pressure rises or falls with constant width, a weather judging1 circuit 10 outputs a detection signal indicating 'fine' or 'rain' and a detection signal indicating 'getting worse' or 'getting better' is outputted according to the variation direction of the atmospheric pressure. The detection signal indicating 'getting worse' or 'getting better' is stored in a wore/better storage circuit 34. A display position determining circuit 40 determines display transition from 'fine' to 'getting worse', from 'rain' to 'getting better', from 'getting better' to 'fine', from 'getting worse' to 'rain', from 'getting worse' to 'fine', or 'getting better' to 'rain' according to the signal from the storage circuit 34. A display position control circuit 70 applies a signal to a display device 106 according to the decision of the display position determining circuit 40 to move the weather display, thereby displaying the weather tendency.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a weather trend device that measures the current atmospheric pressure using a barometer and predicts and displays future weather from the measurement signal. In particular, the present invention relates to a display device and a circuit for controlling its operation.

(Prior art) A conventional device of this type is disclosed in Japanese Patent Application Laid-open No. 63-14428.
There was one built into the watch disclosed in Publication No. 6.

In this device, a plurality of weather display sections are provided in the display section of the watch, and predicted weather is displayed by switching and lighting up the weather display sections.

(Problems to be Solved by the Invention) In the above-mentioned conventional devices, the weather was displayed by constantly supplying power to the display unit consisting of LEDs, liquid crystals, etc., so there was a problem that power consumption increased. In addition, in conventional devices, the display is switched on and off, so there is a problem that the expression of one display is limited, and in order to create a more dynamic display, the display section and circuit must be made more complex. This required an increase in costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a weather trend device that reduces power consumption and provides dynamic display with a simpler configuration.

(Means for Solving the Problems) The weather trend device of the present invention includes a weather judgment circuit that detects the rise, fall, and direction of change in atmospheric pressure within a certain value range and outputs detection signals corresponding to the respective changes; A display device consisting of an analog display that has a plurality of weather displays corresponding to the above and is movable to clearly display one of the weather displays, and a display device that memorizes weather trends based on a detection signal indicating the direction of change in atmospheric pressure output from a weather judgment circuit. A display position determining circuit that determines a change in the display position of the weather display to be displayed on the display device based on the detection signal and the memory signal from the improvement memory circuit, the weather judgment circuit, and the worsening recovery memory circuit, and the output signal thereof. The present invention is characterized by comprising a display position control circuit that applies a signal to the display device to move the weather display to the determined display position.

Further, the display device in this weather trend device includes a weather display section that is provided with a plurality of weather displays and is movable to clearly display one of the weather displays, a drive device that drives the weather display section, and a signal from a display position control circuit. and a drive circuit that drives the drive device based on the drive circuit.

Furthermore, this weather trend device includes an external switch and an initial position setting circuit that applies a signal to the display position control circuit to shift the display position of the weather display displayed on the display device to a desired position in accordance with the operation of the external switch. .

is provided.

(Function) In the weather trend device of the present invention, when the atmospheric pressure rises or falls within a certain value range, the weather judgment circuit outputs a detection signal indicating "sunny" or "both", and depending on the direction of change in the atmospheric pressure, a detection signal is output. A detection signal indicating "deterioration" and "improvement" is output.

The detection signals indicating "deterioration" and "improvement" are stored in the deterioration/improvement storage circuit.

Based on the signals from the weather judgment circuit and the deterioration/improvement memory circuit, the display position determination circuit changes from "sunny" to "deterioration", "rain" to "improvement", and "improvement" to "sunny" to "deterioration". From "rain" to "deterioration" to "11#re".

Determine each display transition from "recovery" to "rain".

The display position control circuit applies a signal to the display device to shift the weather display based on the determination of the display position determination circuit to display the weather trend.

(Example) The present invention will be described in detail below based on the drawings.

FIG. 1 is a diagram showing a circuit configuration of a weather trend device according to an embodiment of the present invention, FIG. 2 is a front view showing the external appearance of the weather trend device shown in FIG. 1, and FIG. 3 is a sectional view thereof. .

First, the weather display in this embodiment will be explained using FIGS. 2 and 3.

A weather display section 11 is composed of a circular weather display board 13 on which a plurality of pictures indicating weather conditions are drawn, and a pointer 17 attached to a drive shaft 15 protruding from the center thereof. The surface of this weather display board 13 is divided into four parts, and each of the four divided areas 13a to 13d has "Sunny J".

Pictures are drawn to indicate ``deterioration,'' ``rain,'' and ``recovery.''

Normally, when the weather is sunny, it worsens when a low pressure system passes, and then improves when a low pressure system passes. Therefore, basically, it is "fair", "worsened", "both", and "recovered".
Since the weather changes in this order, the pictures are drawn on the weather display board 13 in this order clockwise.

Reference numeral 19 denotes a drive unit for the pointer 17, which houses a control circuit and a motor, which will be described later.

21 is a case to which the weather display section 11 and the drive section 19 are attached.

In this weather trend device, based on changes in current atmospheric pressure,
The weather forecast for about 8 hours later is predicted and displayed by rotating the pointer 17.

For example, if the pointer 17 is within the "R" region 13c and it is predicted that the atmospheric pressure will rise and the weather will improve,
The pointer 17 is driven 1/4 turn clockwise and stops within the "well" region 13d.

Thereafter, when it is predicted that the atmospheric pressure will drop again and the weather will become rainy, the pointer 17 is driven until it enters the "rain" region 13c and then stops. At this time, since a step motor that rotates only in one direction is used in this embodiment, the pointer 17 is driven 3/4 rotation clockwise. Incidentally, if a reversible step motor is used, it is sufficient to drive it 1/4 rotation counterclockwise.

In this way, the weather trend device in this embodiment has the guideline 17.
The weather is displayed in analog form by the movement of the .

Next, the circuit configuration of the weather trend device that displays the weather will be explained based on the first example.

3 is a power-on clear circuit that outputs a signal when the battery is inserted, and the resistor 5 and capacitor 7 are connected in series between the H level and the ground, and the signal from between is inverted and used as a power-on clear signal PC. Inverter 9 to output
It is composed of and.

Reference numeral 10 denotes a weather judgment circuit, which includes an atmospheric pressure change detector 2 consisting of first and second contacts 4.6 and a contact piece 8 that moves between them in response to changes in atmospheric pressure within a constant value range; ,6
resistors 12.14 respectively connected between each output line from the ground and ground, and together with the first and second contacts 4.
Bounce delay circuit 1 connected to each output line from 6
6.18 and the signal from this bounce delay circuit 16 is input to the set manual S, and the bounce delay circuit 18
A flip-flop (hereinafter abbreviated as rFFJ) 24 that inputs the signal from the power-on clear circuit 3 to the reset human power R via the OR gate 22 together with the signal PC from the power-on clear circuit 3;
AND gates 30 and 32 which input signals from bounce delay circuits 16 and 18 to respective input terminals via inverters 26 and 28, and input signals from outputs Q and Q of FF 24 to respective input terminals, respectively. It is composed of and. Note that the atmospheric pressure change detector 2 in this embodiment is as follows:
Although the atmospheric pressure is detected mechanically, other methods such as a resistance bridge may also be used.

34 is a deterioration recovery memory circuit which inputs the signal from the AND gate 30 to the set human power S, and inputs the signal from the AND gate 32 together with the signal PC from the power-on clear circuit 3 to the reset human power R via the OR gate 36. Enter F
It is composed of F38.

Reference numeral 40 denotes a display position determining circuit 1. For example, the first transition is when changing from "sunny" to "worsening" to "raining" to "improving", and from "worsening" to "sunny" or "improving" ” to “rain” is defined as a second transition. The second transition is comprised of a first detection circuit 42 that detects the first transition, and a second detection circuit 44 that detects the second transition.

The first detection circuit 42 includes bounce delay circuits 16.18
Input the signals from FF38 to each input terminal respectively.
AND gates 46 and 48 which input signals from the output -d-1Q to respective input terminals, and AND gate 30
．． It is composed of one-shot circuits 50 to 56 which manually input the output signals of 32, 46, and 48, respectively, and an OR gate 58 which inputs the output signals.

The second detection circuit 44 also includes the bounce delay circuit 16.
．． 18 to each input terminal and F
AND gates 60 and 62 that input signals from the outputs Q and Q of F38 to respective input terminals, one-shot circuits 64 and 66 that input their output signals, and OR gates 68 that input their output signals, It consists of

70 is a display position control circuit, which includes an oscillator 72 that outputs a reference signal, a frequency divider 74 that divides the frequency of the reference signal and outputs a 167 signal, and a data input connected to H level and output from an OR gate 68. FF 76 which inputs the signal to the clock input φ, the signal from its output Q and the OR gate 5
FF 80 which inputs the signal from 8 to the data input via the OR gate 78 and inputs the 161-1z signal to the clock input φ; AND gate 82 which inputs the signal from its output Q and the 167 signal; OR gate 8 which inputs the output signal and a signal from the initial position setting circuit described later.
4, a hexadecimal counter 86 which inputs and counts the signal from the AND gate 82, an OR gate 88 which applies the carry signal from its output Q and the power-on clear signal PC to the reset manual R of the FF 80, and its carry signal. and an AND gate 90 which inputs a signal from the output Q of the FF76, a ternary counter 92 which inputs the output signal to the clock input φ, and a carry signal and a power-on clear signal PC from the output Q of the FF76. and an OR gate 94 that applies the reset human power R.

96 is an external switch, and 98 is an initial position setting circuit.

This initial position setting circuit 98 includes a one-shot circuit 10 that inputs a signal from an external switch 96 and outputs a pulse.
0, its output signal, the 167 signal, and the power-on clear signal PC are input to the data input, clock input φ, and reset input R, respectively.The signal from the output Q and the 167 signal are input to the FF 102, and the OR gate 84 and an AND gate 104 that applies a signal to.

106 is a display device, a drive circuit 108, and a drive device! 1110, and a weather display section 112.

This drive circuit 108 is an FFI that inputs the signal from the OR gate 84 to the clock signal φ, inputs the signal from its output Q to the data signal, and divides the input signal by half.
AND gates 116 and 118 input the signals from the outputs Q and Q to each input terminal, respectively, and further input the signals from the OR gate 84 to the respective input terminals, and amplify and drive the output signals, respectively. It consists of amplifier circuits 120 and 122 that apply power to the device 110.

Further, in this embodiment, the drive device 110 is composed of a step motor that rotates in one direction, and includes, for example, a 60mm step motor.
It is set to rotate once when a pulse is input.

The weather display section 112 displays the weather in analog form as shown in FIGS. 2 and 3.

Next, the operation of the weather trend device having the above configuration will be explained.

First, when a battery is inserted or the power is turned on, a pulse is generated in the power-on clear signal PC output from the power-on clear circuit 3. This pulse causes FF2
4.38.76.80.102 is reset to the initial state.

Here, when the external switch 96 is turned on, a pulse is output from the one-shot circuit 100, which causes the FF
102 makes its output QttH level. Therefore, AND gate 104 becomes open and a 167 signal is generated at its output. This 167 signal is applied to the FF 114 and AND gates 116 and 118 via the OR gate 84, and pulses are output from the amplifier circuits 120 and 122 to drive the drive device 1110. As a result, the pointer 17 shown in FIGS. 2 and 3 is driven and moved to a weather display position that matches the current weather.

Once the initial state is set in this way, the pointer 17 is thereafter driven in response to the detection signal from the weather judgment circuit 10.

For example, when the contact piece 8 is now in contact with the first contact point 4 and the pointer 17 shown in FIG. 2 is within the "sunny" region 13a,
When the atmospheric pressure decreases and the contact piece 8 separates from the first contact point 4, the output signal of the bounce delay circuit 16 changes from the H level to the L level. As a result, the output signal of the inverter 26 which inverts this signal and the FF 24 which has already been set
The output signal of AND gate 30, which receives the signal from output Q of , becomes H level.

This signal is a signal indicating "deterioration", and is applied to the set human power S of FF38 to set it to "deterioration".
At the same time, the one-shot circuit 50 outputs a pulse to instruct the transition from "fair" to "worse".

This pulse is further transmitted from the OR gate 58 to the OR gate 78.
When applied to the FF 80 via the FF 80, the FF 80 sets its outputs Q and Q to H and L levels, respectively. This causes the AND gate 82 to open and its output to be 16
A Hz signal is generated.

Further, the hexadecimal counter 86 is released from reset, receives the 167 signal from the AND gate 82, and counts it. At this time, 16hta from AND gate 82
The signal is applied to a drive circuit 108 via an OR gate 84, which drives a drive device 110.

As a result, the pointer 17 shown in FIG.
The hands are moved by 1/60 revolution for each pulse of the signal generated at the output of No. 2.

After that, 15 pulses are generated in the signal from the AND gate 82, and the pointer 17 is rotated 1/4 of a turn, causing "r deterioration" region 1.
3b, a carry signal is output from the output Q of the hexadecimal counter 86. This carry signal is FF
applied to the reset input R of 80 to reset it;
The FF 80 switches its outputs Q and Q respectively to H level. As a result, the AND gate 82 is closed, its output signal becomes L level, and the hexadecimal counter 86 is reset.

In addition, when the pointer 17 indicates "deterioration" and the atmospheric pressure further decreases by a certain value and the contact piece 8 contacts the second contact 6, the "rain" output from the bounce delay circuit 18 is The H level signal indicates that the current display is "worsening".
This is generated at the output of the AND gate 48, which is in an open state due to the signal from the FF 38 that stores this.

In response to this signal, a pulse is output from the one-shot circuit 56 and passed through the OR gate 58 to the display position control circuit 7.
applied to OR gate 78 within 0;

In this way, the display position control circuit 7
In order for an H level signal to be applied to the OR gate 78 in 0, there are two cases in which it changes from "sunny" to "worsened" and from "worsened" to "rainy" as described above, and also when it changes from "picture" to "r better". ,
The condition may change from ``improved'' to ``sunny''. This "rain"
When the state changes from "I feel better", the contact piece 8 separates from the second contact 6 due to the increase in atmospheric pressure, and this causes the output signal of the FF 24, which has already been reset, and the bounce delay circuit 18, which has been inverted by the inverter 28, to be In response to this signal, the AND gate 32 outputs an H level signal indicating that the patient is feeling better, and in response to this signal, the one-shot circuit 52 outputs a pulse and a signal is output via the OR gate 58. Furthermore, when the state changes from "good" to "sunny", the atmospheric pressure increases further and the contact piece 8 comes into contact with the first contact 4, which causes the rebalance delay circuit 16 to output an H level signal. Ru. This signal and the signal from the FF 38, which has already memorized the state when "recovery" has been detected, cause the output signal of the AND gate 46 to become H level, and in response to this signal, the one shot A pulse is output from the circuit 54 and applied to the OR gate 78 in the display position control circuit 70 via the OR gate 58 .

In this way, when a signal is output from the OR gate 58, it is necessary to turn the pointer 17 1/4 turn to shift the display to the predicted weather, and in this case, perform the same operation as described above. 15 pulses are output from the OR gate 84 in the display position control circuit 70, and the pointer 17 reaches 1.
/4 rotations.

Next, if the situation changes from "worsening" to "1 clear".

Due to the decrease in atmospheric pressure, the contact piece 8 that was in contact with the first contact 4 is temporarily separated and becomes in a state indicating "deterioration", and then the atmospheric pressure increases again and the contact piece 8 is brought into contact with the first contact 4. For this reason,
As mentioned above, when the contact piece 8 separates from the first contact 4, the FF 38 is set by the signal output from the AND gate 30, and the AND gate 60, which inputs the signal from the output Q, is opened. There is. Here, when the contact piece 8 comes into contact with the first contact point 4 again, the H level signal output from the bounce delay circuit 16 is transmitted to the AND gate 60.
A pulse is generated from the one-shot circuit 64 in response to this signal.

This pulse is applied to the clock φ of the FF76 via the OR gate 68, and in synchronization with the rising edge of the clock, the FF7
The outputs Q and Q of 6 are at H and L levels, respectively. This F
"The H level signal from the output Q of the F76 is applied to the data output of the FF80 via the OR gate 78, thereby switching the output state of the F80, and in the same manner as described above, the 15 signals are output from the OR gate 84. A pulse is output.

When 15 pulses are output in this way, the hexadecimal counter 86 outputs a carry signal.

The FF 80 is temporarily reset by this signal, and the 3
An H level signal is applied to the advance counter 92 to increment its count by one.

In this state, the outputs Q and Q of FF76 are still maintained at H and L levels, so FF80 again outputs Q and Q.
Set Q to H1L level.

Therefore, 15 pulses are output again.

This operation continues to be repeated until a carry signal is output from the ternary counter 92, which counts the carry signal from the hexadecimal counter 86.

When a carry signal is output from the ternary counter 92, this signal is passed through the OR gate 94 to the FF 76.
is applied to the reset human power R to reset it. In this way, when the signals from the outputs Q and Q of FF76 rise and become H level, an L level signal is applied to the data output of FF80, and the third carry output from the hexadecimal counter 86 The output state when reset by the signal is maintained. Therefore, the outputs Q and Q become H level, the AND gate 82 is closed, the hexadecimal counter 86 is reset, and the output of pulses from the OR gate 84 is stopped.

According to this operation, outputting 15 pulses is repeated three times, and as a result, 45 pulses are applied to the drive circuit 108. For this reason, Guideline 17
rotates 374 times, and moves from the "deterioration" region 13b shown in FIG. 2, passing through the "rain" and "improvement" regions 13c and 13d, to the center of the "sunny" region 13a.

On the other hand, when the state changes from "I feel better" to "Rain", the contact piece 8 that was in contact with the second contact 6 is temporarily separated and then comes into contact with the second contact 6 again, so that the bounce delay circuit 18 The H level signal output from the FF 38 is generated at the output of the AND gate 62 which is in an open state due to the signal from the FF 38 which stores "recovery". One shot circuit 66
outputs a pulse in response to the signal from the AND gate 62, and this pulse passes through the OR gate 68 to the FF7.
6.

As a result, 15 pulses are repeatedly applied three times from the OR gate 84 to the drive circuit 108 in the same manner as in the operation described above.

As a result, the pointer 17 passes from the "improved" region 13d, through the "sunny" and "worsened" regions 13a and 13b, and stops at the center of the "rainy" region 13c.

In the above embodiment, since a step motor that rotates in one direction is used, the output signals of the first and second detection circuits 42 and 44 in the display position determination circuit 40 are used to
It is instructed to rotate /4 rotation and 3/4 rotation, but
When using a reversible step motor, the first
The output signals of the second detection circuits 42 and 44 are used as signals for instructing clockwise and counterclockwise rotation, respectively. Then, the display position control circuit 70 and the drive circuit 108 may be configured to control the reversible step motor in forward and reverse directions in 1/4 rotation increments in response to this signal.

FIG. 4 is a front view showing a modification of the display device of the weather trend device shown in FIG. 2, and FIG. 5 is a sectional view thereof.

The weather display section 31 shown in the figure is composed of a circular weather display section 33 on which a picture indicating the weather condition is drawn, and a circular indicator board 37 attached to a drive shaft 35 protruding from the center thereof. There is. This weather display board 33 also has its surface divided into four parts, as shown in FIG.
Pictures are drawn to indicate ``deterioration,''``rain,'' and ``recovery.''

The indicator board 37 is set to have almost the same diameter as the weather display board 33, and is provided with a window 37a through which only one of the pictures drawn on the weather display board 33 can be seen. .

In this weather display section 31, when the instruction plate 37 rotates and the position of the window section 37a shifts, the weather display within the shifted area becomes visible and the predicted weather is displayed.

Note that it is also possible to configure the indicator board 37 to be fixed and the weather display board 33 located behind it to be rotated.

(Effects of the Invention) According to the present invention, since the weather display is driven only when the display is to be changed, the power consumption related to the weather display can be minimized.

In addition, by using a mechanical display that uses a motor, it is possible to display a display with more movement than conventional ones, and the circuit that controls its operation is also simplified, which leads to an increase in costs. It is possible to provide a moving weather trend device that has high commercial value without being expensive.

Furthermore, since the weather is displayed through rotational movement, the mechanical elements can be shared with the movement of a watch.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a circuit configuration of a weather trend device according to an embodiment of the present invention, FIG. 2 is an external view of the weather trend device shown in FIG. 1, and FIG. 3 is a diagram showing the weather trend device shown in FIG. 2. FIG. 4 is a front view showing a modification of the display device of the weather trend device shown in FIG. FIG. 5 is a cross-sectional view of the weather trend device shown in FIG. 3... Power-on clear circuit, 10... Weather judgment circuit, 11.31.112... Weather display unit, 34... Deterioration recovery memory circuit, 40... Display position determining circuit. 70...Display position control circuit, 96...External switch, 98...Initial position setting circuit, 106...Display device, 108...Drive circuit, 1
10... Drive device.

Claims (3)

[Claims] (1) A weather judgment circuit that detects the rise, fall, and direction of change in barometric pressure within a certain range and outputs detection signals corresponding to each, and a plurality of weather displays corresponding to the detection signals, one of which is provided. a display device consisting of an analog display that is movable so as to clearly display the weather; a deterioration/improvement memory circuit that stores weather trends based on a detection signal indicating the direction of change in atmospheric pressure output from the weather determination circuit; a display position determining circuit that determines a change in the display position of the weather display to be displayed on the display device based on the detection signal and the memory signal from the deterioration recovery memory circuit; A weather trend device comprising: a display position control circuit that applies a signal to the display device to move the weather display to a display position. (2) The display device includes a weather display section that is provided with the plurality of weather displays and is movable so as to clearly display one of the weather displays;
The weather trend device according to claim 1, comprising: a drive device that drives the weather display section; and a drive circuit that drives the drive device based on a signal from the display position control circuit. . (3) The weather trend device further includes an external switch, and a display position control circuit that sends a signal to shift the display position of the weather display displayed on the display device to a desired position in response to the operation of the external switch. Claim 1, further comprising: an initial position setting circuit for applying a voltage to the
Weather trend device as described in section.