JPH0429437Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a timer device that provides notification after a preset timer time has elapsed.

[Prior art and its problems]

In conventional timer devices, timer time data is set by operating a dial, push button switch, or the like with a finger. For this reason, when setting the timer time when your hands are wet from cooking or dirty with oil, there is a risk that the switch section may get dirty or water may enter the switch case, causing the timer to malfunction or break down. It was hot.

[Purpose of invention]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional technology, it is an object of the present invention to provide a timer device that can set a timer time without directly touching a switch.

[Key points of the idea]

In order to achieve the above object, the gist of the present invention is to use a non-contact type distance sensor and set a timer time according to distance data detected by the distance sensor.

[Example of idea]

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

FIG. 2 is an external view of the timer device of this embodiment. In the figure, a timer device 1 is composed of a timer time display section 2, a light emitting section 3, a light receiving section 4, and an internal timer drive circuit described below. Also,
As shown in the figure, this timer device 1 is installed on a table 6 in a cooking area 5 where a water supply 7 and the like are provided.

The timer device having the external configuration as described above is
It has a drive circuit shown in FIG. 1 inside.

To explain the configuration of the figure, a high frequency signal of, for example, 32.769 KHz outputted from the oscillation circuit 8 is input to the frequency dividing circuit 9, and the frequency dividing circuit 9 creates reference signals of 1 Hz and 4 Hz. 1Hz signal is AND gate 10
Output to. The 4Hz signal is output to the AND gate and delay D circuit 12. AND gate 10
When the outputs of F and F13, which will be described later, and the output of the inverter 14 are both high signals, the 1 Hz signal input to the 1 Hz signal is sequentially input to the down counter 15, and the data of the down counter 15 is counted down (-1).

On the other hand, the distance sensor 16 mainly composed of the above-mentioned light emitting section 3 and light receiving section 4 includes the light emitting section 3 and the light receiving section 4.
As shown in FIG. 2, the distance between the hand 19 and the hand 19 is measured, and by detecting the reflected light of the light emitted from the light emitting section 3 with the light receiving section 4, it is measured as analog data. This analog data is output to an analog/digital conversion circuit (A/D conversion circuit) 17 in synchronization with the signal from the D circuit 12, and is converted into digital data. This digital data is data that changes by 1 (1 minute) per 1 cm of the above-mentioned distance. Furthermore, this digital data is output to the latch circuit 18 and latched. If the data input to the latch circuit 18 is data indicating a distance of 5 cm or less, it is detected by the 5 cm or less detection circuit 20, and if the data input to the latch circuit 18 is data indicating a distance of 65 cm or more, 65
cm or more is detected by the detection circuit 22. Also, the data input to the latch circuit 18 is -5 arithmetic circuit 21
It is decremented by 5 and output to the down counter 15.

When the 5 cm or less detection circuit 20 detects that it is 5 cm or less, it outputs a clear start signal to the AND gate 23 and the 2-second timer 24. Also, if the 65cm or more detection circuit 22 detects that the height is 65cm or more, F,
A reset signal is output to the reset R terminal of F25. In F and F25, when a high signal from the above-mentioned AND gate 25 is input to the set S terminal, a high signal is output from the output Q, and when a reset signal is input to the R terminal, a low signal is output from the output Q. Also, F,
When a high signal is input to the T terminal of F13, a high signal is output from the output Q, and when a high signal is input to the R signal, a low signal is output from the output Q.

The down counter 15 sequentially counts down the data, and displays the down-counted data on the display section 2.
At the same time, it is output to the "0" detection circuit 26. Further, every time a 4 Hz signal is input from the AND gate 11, data from the arithmetic circuit 21 is set in the down counter 15. The “0” detection circuit 26 outputs a report signal to the sound alarm device 27 when the data from the down counter 15 becomes “0”, and
A high signal is output to the inverter 14 mentioned above. Then, the output of the inverter 14, which normally outputs a high signal, is turned into a low signal and sent to the down counter 15.
1 Stop outputting the signal.

The operation of the timer device of this embodiment having the above configuration will be described below.

First, in order to store time data required in advance in the down counter 15, such as data such as cooking time, the hand 19 is extended facing the light emitting part 3 and the light receiving part 4 as shown in FIG. Bring it close to a distance of 3 to 5 cm.

When the distance sensor 16 detects this, this data is sent to the 5 cm or less detection circuit 20 via the latch circuit 18.
, and the timer clear start signal is supplied to the timer 24 as described above. The timer 24 is started from these, and after 2 seconds, the output from the timer 24 is passed through the AND gate 23 to F,
A reset signal is supplied to the R terminal of F13, a set signal is supplied to F and F25, and the gate of AND gate 11 is opened by the signal from output Q. Further, a clear signal is supplied to the down counter 15 to clear the contents of the down counter 15. When the hand 19 is released from the light emitting part 3 and the light receiving part 4 from this state, the value obtained by subtracting -5 from the distance data, for example, 6 cm.
When it is separated, "1 (minute)" is given to the down counter 15, and when it is separated by 7 cm, "2 (minutes)" is given to the down counter 15.
Every time 4 Hz is supplied from the AND gate 11, the value at that time is rewritten and stored. Then, with the desired value stored, move the hand 19 to the light emitting section 3 and the light receiving section 4.
If you move the object from a position where it can be measured to a position where it cannot be measured, the object to be measured will be further away.65
cm or more is detected by the detection circuit 22, F,
F25 is reset. As a result, the 4Hz signal is passed through the AND gate 11 to the down counter 15.
supply is stopped. In this way,
A desired timer time can be set in the down counter 15.

Then, again, the hand 19 is 5
cm within 2 seconds, the output signal from the 5 cm or less detection circuit 20 is input to the T terminals of F and F13, and the output Q of F and F13 shifts to high level.
The timer time of the down counter 15 can be sequentially subtracted via the AND gate 10. When the content of the down counter 15 becomes "0", a sound is emitted from the sound alarm device 27 as described above, indicating that the timer setting time has been reached.

As described above, according to this embodiment, the timer device 1
The timer time can be stored for up to 60 minutes. Furthermore, there is no need to directly touch a switch or the like to set the timer time in the timer device 1 of the embodiment.

[Effect of idea]

As described above in detail, according to the present invention, the timer can be easily set without touching the device even when the user has wet or oily hands, or while holding a plate or a knife with one hand.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a timer device of this embodiment, and FIG. 2 is a perspective view including the timer device of this embodiment. 1... Timer device, 2... Display section, 3... Light emitting section, 4... Light receiving section, 15... Down counter, 1
6...Distance sensor, 20...5cm or less detection circuit,
21...-5 calculation circuit, 22...65cm or more detection circuit, 26..."0" detection circuit.

Claims (1)

[Scope of utility model registration request] a distance sensor; and digital data output means for measuring distance data at a predetermined period when the distance to a target object is within a predetermined distance using the distance sensor and outputting the measured distance data as digital data; a timer circuit means for setting and storing the output digital data as a timer time every time the digital data is output from the digital data output means; 1. A timer device comprising operation control means for stopping a setting storage operation in the timer circuit means.