JPS6227856Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is to notify the value of a weighing scale for measuring weight by sound, and particularly relates to a sound output weighing scale in a weight scale.

Conventional voice output weighing scales, especially weighing scales, etc., record the weight value on a recording tape or record board, etc. for each weight in order from 0 to the maximum weight in order to output the sound. Devices have been devised to notify the weight by outputting the weight value as sound via a head or pick-up in response to a tape or record board that records the amount of change in the scale. The device, especially as a scale for measuring body weight, is often held up and is subject to a great deal of vibration when a person steps on the scale.Not only does the device itself lack durability, but it also outputs sound. However, due to surrounding vibrations, the detection head, needle, etc. vibrated, and accurate and easy-to-understand sounds were not emitted, making it extremely uncertain. Furthermore, since the device is mechanically constructed, it has many friction points, which wear out, resulting in a short lifespan and not being permanent. In addition, the product is large and has a large overall shape, which has drawbacks such as inconvenience in carrying, and it is expensive and lacks reliability.

Therefore, in view of the above-mentioned drawbacks, the present invention does not have any mechanical structure in the part that detects the sound, and uses only electronic processing to notify the weight value by sound, and it can be used even in the case of severe vibrations. It is highly reliable, can be miniaturized, and does not require inaccurate vocalizations, and does not require an unnatural posture to view the display.
This provides a voice output weighing scale that is extremely convenient for visually impaired people, elderly people, etc.

One embodiment will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram of a processing apparatus according to an embodiment of the present invention.

1 is a weight scale, and the weight 1a is used as a spring 1 using a lever.
This is converted into a change in the elongation of b.

2 is a sensor that converts the amount of change in the extension of the spring 1b into the amount of change in capacitance, resistance, inductance, etc. Then, an A-D converter MP・a included in a one-chip microprocessor (hereinafter referred to as MP) converts this amount of change into the spring 1.
Convert to a numerical value corresponding to the weight value added to b.

Reference numeral 3 denotes a display unit which displays the weight value obtained by the A-D conversion in numbers. MP.b is a voice selector which is a part of the MP, and its voice selection means will be explained in the flowchart (FIG. 3) to be described later.

4 is a ROM, and as shown in Figure 2, each address has the numerical values 0 (zero), 1 (one), 2 (nii), 3 (san), 10 (jiu), and 100 (hiyaku) in sequence. ) and other values (ten), K (kilometer),
Each audio signal representing a g (gram) symbol is sampled, quantized, and stored as a series of digital codes. Here, we focused on the fact that the utterance time for each numerical value, unit, decimal point, etc. is almost constant, and by making the capacity of the memory that stores them the same, we can eliminate the need for a circuit to generate each utterance end signal. A simple circuit configuration is realized. In addition, AOS~AOE... is the address where the corresponding code is stored at the beginning of each numerical value and symbol.
This indicates that AOS represents the last address AOE...

The ROM 4 in which audio is converted into digital codes and stored as described above is accessed by the audio selector MP.b, and a digital audio signal corresponding to the weight value is applied to the D-A converter 5, whose output is as follows. It is connected to the speaker SP via the amplifier circuit 6.

An example of operation will be explained below using a flow chart (Figure 3) and a timing chart (Figure 4).
Now, when weight (body weight) is applied to the weighing scale 1, the spring 1b stretches due to the lever ratio, and the amount of change is changed into an amount of electricity by the sensor 2, and the amount of change in this amount of electricity is sent to the A-D converter MP・a. The weight is digitized and the weight (body weight) corresponding to the weight (body weight) is displayed in numbers on the display unit 3. Then, when the weight value enters a stable state, the voice selector MP/b changes the numerical values and symbols stored in the ROM in advance to the same numerical value and symbol as the weight (body weight) displayed on the display section 3. Select symbols according to their order of pronunciation. The method is as shown in the flowchart shown in Figure 3. In the first step, the weight (body weight) value is first read, and in the second step, it is determined whether the value is 0 or greater. If so, in the third step it is determined whether the value is stable. This judgment is particularly important when measuring body weight, etc., because the weight value (body weight value) is stabilized due to vibrations of the weighing scale (scale) caused by body shaking, etc. Since it is difficult to do so, we will do it through means such as averaging. Note that if both the second and third steps are NO, the reading of the first value is repeated.

Next, when the value enters a stable state, it is determined in the fourth step whether the hundreds digit is 2 or more, and if it is 2 or more, the hundreds digit is selected in the fifth step and D-
Speaker sp through A converter MP・a, Amp,
pronounce the number.

If NO in the fourth step, it is determined whether the hundreds digit is 1 in the 4' step, and if it is 1, it is selected in the sixth step. , Speaker through Amp
It is pronounced hiyaku rather than sp. If it is not 1, then in the 7th step it is determined whether the tens digit is 2 or more, and if it is 2 or more, in the 8th step the tens digit is selected and uttered. In the step, it is determined whether the tens digit is 1 or not, and if it is 1, the digit is selected and pronounced in the ninth step. If it is not 1 in the 7th step, it is determined in the 7th step whether the 1's digit is other than 0, and if it is not 0, the 1's digit is selected in the next 10th step. If so, go to the 11th step and select (ten).Next, in the 12th step, select 1/10.
Select the digit number and finally in the 13th step
Select and pronounce Kg (kilogram). In this way, for example, if the weight (weight) is 65.3 kg, from the contents of the ROM shown in Figure 2, 6 (Roku) is stored at addresses A _6S to A _6E and 6 (Roku) is stored at addresses A _10S to A _10E . 10 (Jiyuu), 5 (Go) stored at addresses A _5S to A _5E , 3 (Sun) stored at addresses A _3S to _{A 3E , and}・( ten) and A _13S ~ _{A 13E} , A _14S ~ _{A 14}
K (kilo) and g (gram) stored at address _E
are selected in the order of pronunciation, this digital code is converted into an analog quantity by the DA converter 5, and the speaker SP pronounces ``Rokujiyugotensankilogram'' via the Amp 6 to notify the measurer.

The timing chart shown in Fig. 4 displays a hypothetical state in which the weight increases sequentially on the display unit 3, and after the weight reaches a stable state, the address of the contents of the ROM and the weight to be sounded from the speaker are displayed at the timing. This is what I did.

As mentioned above, since weight information is processed electronically without the need for any mechanical moving parts, it is not affected by machine vibrations, etc. As mentioned at the beginning, it is highly reliable and compact, and since it notifies you of your weight by voice, you do not need to take an unnatural posture to look at the display.
It is extremely convenient and effective for visually impaired people, elderly people, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram. FIG. 2 is a simplified diagram showing the contents of the ROM. FIG. 3 shows a flowchart for selecting a numerical value corresponding to the weight from the ROM, and FIG. 4 shows a timing chart. 1... Weight scale, 2... Sensor, 3... Display section,
MP...Microprocessor, MP・a...A-
D converter, MP/p...Audio selector, 4...
ROM, 5...D-A converter, 6...Amp, SP...
…Speaker, A _DS ~ A _DE ……………A _15S ~ A _15
E ...Street number.

Claims (1)

[Scope of utility model registration request] The amount of change in the weighing scale that measures weight is measured by an A-D converter included in a 1-chip microprocessor.
Convert it to a digital value and display this weight value as a number on the display, and when the weight becomes stable,
Converting the value equivalent to the weight in advance into digital codes such as its constituent elements such as numerical values, units, and decimal points,
The signals stored in the corresponding ROM areas of equal capacity are accessed by the audio selector included in the microprocessor, and the digital signal corresponding to the weight value is applied to the D-A converter. A voice output weighing scale characterized by outputting the output as voice from a speaker via an amplifier.