JPS6310506Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to electronic scales.

Conventional electronic scales are configured to display the weight data at the specified time for a fixed period of time, regardless of the latest weight value, in order to make it easier to read the weight display, which changes minutely. There is something that has been done. The above-mentioned predetermined period is a certain period of time from when the fixed display is instructed or until the next time when the fixed display is instructed to be canceled, and the fixed display should be instructed after the weight value is balanced. .

However, conventional fixed display means are configured to fixedly display the weight value when the fixed display is instructed from the outside, regardless of the balanced state of the weight value, so the timing of the fixed display instruction is too early. It will be displayed incorrectly. Furthermore, since the display is fixed, the customer cannot confirm this erroneous display from the weighing value display section, etc., which reduces operability and reliability of the read data.

Therefore, the present invention has been made to solve the above problems, and provides an electronic scale that can confirm that a fixed display instruction has been given in a state where the weight value is not balanced. It is.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows the configuration of an electronic fare scale, in which numeral 1 denotes a microcomputer as a control section for each device to be described later, which operates according to a preset program. 2 is an analog-to-digital converter that converts the load value into a digital signal; 3 is a unit price setting section; 4
is a display section consisting of a weighing value display section, a unit price display section, and an amount display section, which displays the weight signal Dg, unit price signal Da, and amount signal DM output from the microcomputer 1.
and are digitally displayed as weight, unit price, and amount, respectively. 5 is a hold instruction push button switch,
The microcomputer 1 detects that the switch 5 has been operated, and fixes the weight signal Dg, amount signal DM, and unit price signal Da for a certain period of time only when the weight values at that time are balanced. It is configured to output as follows. Reference numeral 6 denotes an alarm device forming a part of the notification means, which generates an alarm sound according to instructions from the microcomputer 1.

Next, the operation of the alarm device 6 will be explained based on the operation of the microcomputer 1.

During the period until the hold instruction pushbutton switch 5 is operated, the microcomputer 1 sends information to the display unit 4 from the latest weight value from the analog-to-digital converter 2 and the unit price set in the unit price setting unit 3. A weight signal Dg and an amount signal DM corresponding to the calculated price of the object to be weighed are output.

When the microcomputer 1 confirms that the hold instruction button switch 5 has been operated, it determines whether the weight value is balanced or not, and if it is balanced, it outputs the weight signal Dg and the amount signal DM. The hold instruction button switch 5 is fixed at the state at the time of operation confirmation for a predetermined period of time, and if the balance is not balanced, the hold instruction by the hold instruction button switch 5 is prohibited, and the alarm device 6 is controlled to sound for a predetermined period of time. Then, the alarm device 6 makes a sound to notify the operator of the erroneous operation.

The balance of the weighed values is determined by comparing the latest digital value and the previous digital value of the conversion cycle of the analog-to-digital converter 2, and when the deviation between the two exists within a predetermined range for a predetermined number of consecutive times, the weight value is balanced. It is configured to determine that.

If the fixed display is instructed in a state where the weight value is not balanced in this way, an alarm sound will be generated, so it is necessary that the non-fixed display is due to incomplete operation of the hold instruction button switch 5. The user can quickly know what the user wants to say, and the operability is improved without having to operate the hold instruction button switch 5 again due to incomplete operation.

Furthermore, in the above embodiment, if a fixed display instruction is given when the balance has not been reached, the instruction is not accepted, but the display is fixed by the fixed display instruction regardless of the state of the weighed value. It is also conceivable to configure the system so that the content of the fixed display is reliable, and to check whether or not the content of the fixed display is reliable by the sound produced by the alarm device 6.

In the above embodiment, the alarm device 6 controlled by the control signal Co is provided as part of the notification means, but the display value on the display section 4 may be flashed by the control signal Co, or another light emitting device may be used. It is also possible to provide a notification by controlling the blinking of the light.

As explained above, according to the present invention, a notification means is provided to detect and notify that a fixed display instruction for weight value data has been issued when the weight value has not reached balance. The reliability of the data can be confirmed and the occurrence of erroneous measurements can be prevented.

[Brief explanation of the drawing]

The drawing is a configuration diagram of an electronic scale according to the present invention. 1... Microcomputer, 2... Analog-to-digital converter, 5... Hold instruction button switch, 6... Alarm device.

Claims (1)

[Scope of utility model registration request] The electronic scale is configured to fixedly display the weight value data at the time of the instruction, regardless of the latest weight value, and the fixed display instruction is issued when the weight value has not reached balance. An electronic scale characterized by having a notification means for detecting and notifying what has been done.