JPS58215515A - Electronic body weight meter - Google Patents

Abstract

PURPOSE:To enable the displaying of the result of measurement and the date of measurement on one display with the operation of an execution key by providing a date setting switch on a display panel, providing a calendar function to a microprocessor, and providing an area for containing the information of the date of measurement corresponding to measured values in said memory part. CONSTITUTION:In the figure, 17 denotes a 4Bi+C-MOS microcomputer which is packaged similarly on a circuit substrate packaged with a display device 9, etc. The microcomputer has the register in which 5 sets of the linked records and date of the paste three measurements are stored at all times, as shown in the figure, in addition to the calendar function that acts at all times and the calculation for the purpose of general measurement of body weights while a source battery is inserted. P1-P5 denote the register group corresponding to the individual codes assigned by a switch 12 for assigning individuals, 1001 is a register to be stored therein with the date when the latest measurement of an individual code ''1'' is recorded, and 1002 is a register for storing the result of the measurement in that stage.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic weight scale that digitally displays measurement results, and more particularly to the storage of an electronic weight scale with a memory function for recording and reproducing past measurements.

Checking for obesity and managing your health by knowing your weight. This is common during pregnancy, but reading the measurement results and writing them down on a recording sheet or displaying them on a graph can be cumbersome. A weight scale with a memory function has been devised that allows past measurement values to be stored once or twice, and which can be viewed by operating a switch and compared with the current value, making it easy to determine the increase or decrease in weight. ing.

However, if only the measured values are reproduced and it is unknown how many days ago the data was taken, it is impossible to truly grasp the degree of weight gain or loss, and the measurement date linked to the measurement result is required as information. In addition, it is troublesome to input the month and day by key operation every time a measurement is made, and it is not easy to use.

The present invention has been made to meet the above requirements and eliminate the problems, and it is an object of the present invention to provide a weighing scale that can memorize and reproduce the measurement date as well as the measurement result.

The electronic weighing scale of the present invention includes a month/day setting switch on the display panel, a calendar function in the microprocessor, and an area in the memory section for storing measurement date information corresponding to the measured value. The measurement result and measurement date are displayed on a single display by key operation.

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 indicates a case (stepboard) on the body of the scale. Reference numeral 2 denotes a lower case of the main body, and inside thereof a well-known four-part link and an opto-encoder in place of a mechanical scale plate are incorporated so that accurate measurements can be made no matter where on the footboard 1 a load is applied.

Reference numeral 3 denotes an indicator section for displaying measurement results, and in this specific example, it is housed in a separate case from the main body in order to facilitate key operation. Reference numerals 4a and 4b are engagement claws that connect the main body 1 and the indicator section 2, and when the indicator section 2 is not attached to a shelf or wall, these can be engaged with the main body 1 and integrated.

5 is a hole for hanging the indicator part on a wall etc.

6 is a cable that electrically connects the opto-encoder output of the main body 1 to the electronic circuit section in the indicator 3; 7 is a plug on the main body side at the tip of the connecting cable 6; By inserting it into the device, you can measure your weight.

8 is a foot switch provided on the end face of the lower case 2 of the main body, and is turned on by kicking it in with the tip of the foot. Reference numeral 9 denotes a display provided on the top surface of the indicator section 3, which digitally displays the measurement results. 10 is the indicator section 3
A 3-state slide switch located on the left edge of the top surface allows you to
The two positions correspond to "month/day setting J rkg display J rLb display". 11, 12, 13 are indicator parts 3
Each key switch is installed independently on the top surface.
Mode selection switch (SW3), personal designation switch (S
W4) and the execution switch (SW5).

Inside the indicator section 3, there are housed a circuit board (not shown) on which the display 9, slide switch 10, key switches 11, 12, and 13 are all mounted, and an alkaline manganese battery for power supply (also not shown).

14 and 15 are indicator lights that are attached to the circuit board and visible from the top surface of the indicator section 3; 14 indicates that the device is in a writable state; and 15 indicates that the device is in a memory read mode. It is. Reference numeral 16 denotes an opto-encoder built into the main body 1, which consists of two pairs of photointerrupters and a rotating disk, but its configuration is not directly related to the present invention and will therefore be omitted. 17 is 4 B i + which is also mounted on the circuit board on which the display device 9 etc. are all mounted.
It is a c-MOS microcontroller. The microcontroller has a calendar function that operates at all times while the power battery is inserted, and calculations for general weight measurements, as well as a function that links three past measurement records with dates, as shown in Figure 3. 5 sets are always memorized. A register to keep? have.

P1 to P are a group of registers corresponding to the personal code designated by the personal designation switch 12, 1001 is a register that stores the date when the latest measurement of personal code "1" was recorded, and 1002 is a storage of the measurement result at that time. It is a register. 1003 is the recording date register before the previous one, 100
5 is a memory register for the previous recording date, respectively. It has measurement result registers 1004 and 1005'.

The register group is C-MO,! 3 microcontrollers 17 RAM
While the battery is stored in the device, it is always energized to maintain memory even when no display or measurement is being performed.

Next, the sequence of the microprocessor 17 will be explained.

The microprocessor 17 masks interrupts by energizing, performs initial settings, and waits for a later interrupt. This is MP
This is to reduce the power consumption of u17, and the main program continues in standby mode. The interwoven program in the standby state checks each of the switches 10 to 13 and the foot switch 8 and updates the date as shown in item 4-1.

Figures 4 to 8 are flowcharts, and the symbols ■, ■...[stock] attached to the sides of each block in this chart indicate the number of each step. , . . . The standby program indicated by [phase] first checks the position of 8W1, that is, the position of the 3-contact switch 10 for month/day setting/kg-Lb switching in step 2. Said switch 10
When in the month/day setting position, the entire month/day setting routine of [phase] is executed. When the switch 10 is kg or FiLb, check SW2, that is, 0N-OFF of the foot switch 8 with ■, and if it is ON, execute the entire weight measurement routine @, and if it is OFF, check l'-8W3 of ■, i.e. Check the mode changeover switch 11. When the mode changeover switch is turned on, the memory reading routine O is executed, and when it is turned off, the calendar is updated in step (2) and looped back to the original position. The month and date setting program 55 is executed when the user inserts the battery into the device and the user presses the slide switch 10.
It is called when the is set to the "month/day setting" position, and the month is displayed on the display 9 in the 4th and 100th digits, and the day is displayed in the 10th and 1st digits (O) The display is "oo- When the mode switch 11 is turned on at "oo" and "■", the month is counted up. When it exceeds 12, it returns to 1 and continues counting up. 8W4, that is, the personal code designation switch 12, is checked at (2), and when there is a signal, the day display is counted up. When the date display exceeds 31, does it return to 1 and count up? Repeat. When the execution switch 5 is pressed and a signal is input by SW5 check of 0, the month and day displayed on the display 9 are set to the calendar of O, and at the same time, the 4th place is displayed instead of the month and day display of the display 9. and the time is displayed at the 100th position (13)
.

0, the SW3, that is, the mode changeover switch 11 is checked again, and when it is ON, the time on the display 9 is updated with [phase].

5w5 (execution switch 13) is checked with O, and when it is ON, the time displayed on the display 9 is set in the calendar.

The interval is a 24 hour timer.

When the slide switch 10 is set to kg or 1 dLb, the display on the display 9 disappears, and the interactive mode is terminated by pressing O to return to the main routine.

When the foot switch 8 is turned on at (2), the weight measurement routine/2 is called, and the signal of the slide switch 10 is checked at (0). When the slide switch 10 is in the "kg" position, the kg calculation program O is entered, and "
When it is in the L b ” position, the 1b calculation program of O is set. @ starts the timer that determines the lighting time of the display 9. O is the selected @ kg or Execute the calculation using 1b of ViO, perform a halt process, and display the result on the display 9 with O. Check the timer O? with @ and keep the display until a predetermined time (approximately 20 seconds). ) After that, to prevent the display 9 from draining the battery, press O to erase the display 9, and press (c) to return to the main routine.

Program related to recalling measurement results: 5W
3 (mode changeover switch 11) is pressed by ■, and the 5M2 lamp 15, which means ")LEAD"',
Display the personal code number in the hundredth digit of display 9 (0)
. The personal code 711 is P, ~P of the register shown in FIG.
is a number from 1 to 5 corresponding to , and "l" is initially displayed. SW3 is checked again with O, and if it is ON, writing program O is called, but when SW3.11 is pressed again, it is checked with O, and the program returns to the calling program O again.

Check SW4 (personal code switch 12) with O, and if there is a signal, count up all the personal code numbers with ■, and display the numerical value on the display 9 with ■. Number of personal codes is 5
When it reaches 1, it returns to 1 with the next signal and repeats the count-up.

Check 8W5 (execution switch 13) in [Phase] and if there is a signal, press ■ to set counter I as all 1 and set the latest measurement date of the corresponding personal code, for example, if the personal code is 1, 10
The contents of the register 01 are displayed as ■ on the display 9. 0 more
When a signal is received to press the SWS (execution switch 13), the measurement result 1002 is displayed as 0 instead of the month and date on the display 9.

Next, in [phase] SW5'? Check again, and if there is a signal, the counter It-plus 1 is set to 0, and it is checked at O to see if the value of ■ is 4. If it is less than 4, the previous measurement date 1003 is displayed at O.

Furthermore, sws't is checked with O, and if there is a signal, the previously measured weight 1004i is displayed on the display 9 with ■.

At the next SW5 check ■, if there is a signal, add 1 to Ik in ■ and after checking O, set the measurement date 1005 from the previous time to O
Display in . Similarly, if you check SW5's O and display the weight 1006e from the previous time, turn to SW5', [phase]
Check this and set it to 4 with ITh [phase], detect 4 with 0, erase the display, and return to the main routine from 0.

In the case of writing, the LM1 lamp 14'kQ is turned on to notify that the device is in the writing state. ■ SW4
(personal code switch 12), and if the signal is off, the personal code number is increased by 1 and displayed as 0 on the display 9. 8W5 (execution switch 13) is checked at O, and if there is a signal, it is checked whether the measured value to be recorded has been halted. Store it in the new recording position with 0. For personal code 1, the measured value that was held in 1002 is stored, and at the same time, the
Transfer the data stored in 1004 to 1004, and then transfer it to 1004.
The data stored in 04 is transferred to 1i1006. The contents of the 1006 register are flushed out. The measurement date data is also shifted at the same time, and the calendar information at the time of halting is stored in 1001. The data in 1001 is transferred to 1003, and the 1003 data is transferred to register 1005.

To let the user know that the transfer was complete and that the measurement date and value have been recorded, the month and day display is displayed with @.
Then, after erasing for 1 second, the measured value is displayed on the display 9 for 1 second, the halt is cleared with 0, and the main routine is returned with O.

If there is no held measurement value, press O to LM1/P1
After blinking 4 for a predetermined time, the display returns to 0 and returns to the main routine. In the weight measurement program [phase], a halt clear is also performed at O to return to the main routine.

As is clear from the above explanation, the electronic weighing scale of the present invention not only has a digital reading section, but also
Past measurement values are recorded in the memory section of the microprocessor, and can be viewed along with the date of measurement by key operation, making it easy to understand changes in one's own weight.

With the electronic weighing scale of the present invention, instead of inputting the month and day of measurement by key operation each time a measurement is taken, the device only needs to set the date once when inserting the battery, and the device itself automatically calculates the month and date data using the calendar function in the microprocessor. When recording measurement results, the device automatically captures the relevant month and date, making it extremely easy to operate.

[Brief explanation of drawings]

Fig. 1 is an external view of the electronic weighing scale of the present invention, Fig. 2 is a block diagram of the circuit, Fig. 3 is a schematic diagram for understanding storage of measured values and measurement dates in the memory section of the microprocessor, 4 to 8 are flowcharts of the microprocessor. DESCRIPTION OF SYMBOLS 1...Weight scale treadle (main body upper case), 3...Indicator part, 8...Foot switch, 9...Display device,
10...Slide switch, 11...Mode selection switch, 12...Personal code designation switch, 13...
・Execution switch, 14...Writing status indicator light, 15
...Reading status indicator light, 16...Opto encoder\ 17...Figure 1 Figure 9 $3 Figure 2 Figure 7 Figure 8

Claims (1)

[Scope of Claims] 1. In a weighing scale that has a read/write mode changeover switch and an execution switch for executing each operation on the operation panel, and is capable of storing and reproducing past measurement results, The microprocessor is equipped with a switch for setting the month and date, and has a memory area in the microprocessor for recording the month and day corresponding to the measurement result, so that the measurement result and measurement date can be displayed on a single display by operating the execution switch. Features an electronic weighing scale. 2. In the electronic weight scale described in claim 1, the microprocessor is provided with a calendar function operated by the microprocessor's own timer, and the writing operation of month and day is not performed from the panel section when writing measured values. , an electronic weight scale characterized by automatically writing the month and day corresponding to the measured value.