Electronic scale and balance detecting and prompting method applying electronic scale

Abstract

The invention discloses an electronic scale and a balance detecting and prompting method using the electronic scale. The gravity center detection device is used for detecting whether the gravity center approaches the scale center during weighing of a user, including left and right balance and front and back balance, and then reminding the user to move the gravity center to the scale center through the display screen. Therefore, measurement deviation caused by deviation between the gravity center of a user and the scale center is avoided, and the accuracy of the weight value is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic scales, in particular to an electronic scale and a balance detection and prompting method using the electronic scale. Background Art

[0002] Currently, electronic scales on the market can produce different readings when the user's center of gravity is at the center of the scale versus at the edge. This discrepancy is primarily due to the lack of a balance detection function. When the various sensors on the scale are subjected to uneven forces, this can affect the calculated results. Summary of the Invention

[0003] In view of the problems existing in the prior art, the object of the present invention is to provide an electronic scale and a balance detection and prompting method using the electronic scale.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] An electronic scale includes multiple sensors arranged on the electronic scale and a processor connected to the sensors, the multiple sensors including a first sensor, a second sensor, a third sensor and a fourth sensor, the first sensor including a resistor R1 and a resistor R2, the second sensor including a resistor R3 and a resistor R4, the third sensor including a resistor R5 and a resistor R6, the fourth sensor including a resistor R7 and a resistor R8, and the resistors R1, R2, R3, R4, R5, R6, R7 and R8 are all connected to the processor.

[0006] The balance detection and prompting method of an electronic scale includes the following steps:

[0007] Step 1: The processor calculates the "left / right weight difference" and the "front / back weight difference";

[0008] Step 2: Determine whether the user's center of gravity is close to the center of the electronic scale based on the preset standard;

[0009] Step 3: When it is determined that the user's center of gravity deviates from the center of the electronic scale, a corresponding arrow is displayed on the screen to prompt the user to adjust the center of gravity in the direction of the arrow;

[0010] Step 4: When the user's center of gravity is close to the center of the electronic scale, "GOOD" is displayed. At this time, the weight value read by the user is closest to the true value.

[0011] In the processor calculating the "left / right weight difference", the connection point of resistor R1 and resistor R2 is set to point 1, the connection point of resistor R2 and resistor R3 is set to point 2, the connection point of resistor R3 and resistor R4 is set to point 3, the connection point of resistor R4 and resistor R5 is set to point 4, the connection point of resistor R5 and resistor R6 is set to point 5, the connection point of resistor R6 and resistor R7 is set to point 6, the connection point of resistor R7 and resistor R8 is set to point 7, and the connection point of resistor R8 and resistor R1 is set to point 8. The signals of point 3 and point 7 are used to measure the user weight, and the signals of point 4, point 2 and point 6, point 8 are used to measure the weight difference between the left and right sides.

[0012] In the processor calculating the "front / rear weight difference", the connection point of resistor R1 and resistor R2 is set to point 1, the connection point of resistor R2 and resistor R3 is set to point 2, the connection point of resistor R3 and resistor R4 is set to point 3, the connection point of resistor R4 and resistor R5 is set to point 4, the connection point of resistor R5 and resistor R6 is set to point 5, the connection point of resistor R6 and resistor R7 is set to point 6, the connection point of resistor R7 and resistor R8 is set to point 7, and the connection point of resistor R8 and resistor R1 is set to point 8. The signals of point 5 and point 1 are used to measure the user's weight; the signals of point 4, point 6 and point 2, point 8 can be used to measure the weight difference between the front and rear sides.

[0013] Beneficial effects of the present invention

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. By switching the sensor group's measurement scheme, it is possible to simultaneously detect user weight, left-right weight difference, and front-back weight difference. This enables left / right balance detection and front / back balance detection.

[0016] 2. When it is detected that the user's center of gravity deviates from the center of the scale, the user will be prompted to make adjustments to prevent the deviation between the user's center of gravity and the scale center from affecting the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the circuit structure of the present invention.

[0018] Figure 2 Schematic diagram of the circuit structure of measurement solution A of the present invention.

[0019] Figure 3 This is a schematic diagram of the circuit structure of measurement solution B of the present invention.

[0020] Figure 4 This is a schematic diagram of the present invention prompting the user to adjust the center of gravity. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 An electronic scale includes a sensor group, such as the four sensor groups in this case, distributed at the four corners of the scale. The sensor converts pressure into an electrical signal and transmits it to the processor. The processor switches measurement schemes and collects signals from each sensor to calculate the user's weight, the 'left / right' weight difference, and the 'front / back' weight difference. Is the user's center of gravity close to the center of the scale using the 'left / right' weight difference and the 'front / back' weight difference? The user's "center of gravity close to the center of the scale" and "center of gravity adjustment information" are then sent to the display screen. The display screen prompts the user with information such as: "Is the center of gravity close to the center of the scale? In which direction should the center of gravity be moved?"

[0023] Specific measurement scheme: The MCU in the processor controls SW1 to SW8 to be turned down / up synchronously to switch between measurement schemes A and B.

[0024] Measurement Solution A: The S+ and S- signals at the left (point 3) and right (point 7) ends can be used to measure the user's weight; the signals at the lower left (point 4) / upper left (point 2) and lower right (point 6) / upper right (point 8) ends can be used to measure the weight difference between the left and right sides;

[0025] Measurement Plan B: The S+ and S- signals at the lower (point 5) and upper (point 1) ends can be used to measure the user's weight; the signals at the lower left (point 4) / lower right (point 6) and upper left (point 2) / upper right (point 8) ends can be used to measure the weight difference between the front and back ends;

[0026] By switching between measurement scheme A and measurement scheme B, the 'weight value', 'left / right weight difference' and 'front / back weight difference' can be measured synchronously.

[0027] The specific usage process is:

[0028] 1. The user steps on the scale.

[0029] 2. Sensors at various positions on the scale body detect their respective pressures and convert them into electrical signals which are transmitted to the mainboard MCU.

[0030] 3. The MCU determines whether the user's center of gravity is close to the center of the scale based on the signals detected by each sensor.

[0031] 4. If the user's center of gravity is judged to be far from the center of the scale, the display will prompt the user to adjust the center of gravity, including: "left / right / up / down / upper left / lower left / upper right / lower right" and so on.

[0032] 5. After the user adjusts the center of gravity, if it is close to the center of the scale, the screen will prompt "OK".

[0033] 6. The result read at this time is closest to the true value.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An electronic scale, characterized in that: The electronic scale includes a plurality of sensors arranged on the electronic scale and a processor connected to the sensors, the plurality of sensors including a first sensor, a second sensor, a third sensor and a fourth sensor, the first sensor including a resistor R1 and a resistor R2, the second sensor including a resistor R3 and a resistor R4, the third sensor including a resistor R5 and a resistor R6, the fourth sensor including a resistor R7 and a resistor R8, and the resistors R1, R2, R3, R4, R5, R6, R7 and R8 are all connected to the processor.

2. A balance detection and prompting method using the electronic scale according to claim 1, characterized in that: The following steps are involved: Step 1: The processor calculates the "left / right weight difference" and the "front / back weight difference"; Step 2: Determine whether the user's center of gravity is close to the center of the electronic scale based on the preset standard; Step 3: When it is determined that the user's center of gravity deviates from the center of the electronic scale, a corresponding arrow is displayed on the screen to prompt the user to adjust the center of gravity in the direction of the arrow; Step 4: When the user's center of gravity is close to the center of the electronic scale, "GOOD" is displayed. At this time, the weight value read by the user is closest to the true value.

3. The balance detection and prompting method for an electronic scale according to claim 2, characterized in that: In the calculation of the "left / right weight difference" by the processor, the connection point of the resistor R1 and the resistor R2 is set to point 1, the connection point of the resistor R2 and the resistor R2 is set to point 2, the connection point of the resistor R3 and the resistor R4 is set to point 3, the connection point of the resistor R4 and the resistor R5 is set to point 4, the connection point of the resistor R5 and the resistor R6 is set to point 5, the connection point of the resistor R6 and the resistor R7 is set to point 6, the connection point of the resistor R7 and the resistor R8 is set to point 7, and the connection point of the resistor R8 and the resistor R1 is set to point 8. The signals of points 3 and 7 are used to measure the user weight, and the signals of points 4, point 2 and points 6 and 8 are used to measure the weight difference between the left and right sides.

4. The balance detection and prompting method for an electronic scale according to claim 2, characterized in that: In the calculation of the "front / rear weight difference" by the processor, the connection point of the resistor R1 and the resistor R2 is set as point 1, the connection point of the resistor R2 and the resistor R3 is set as point 2, the connection point of the resistor R3 and the resistor R4 is set as point 3, the connection point of the resistor R4 and the resistor R5 is set as point 4, the connection point of the resistor R5 and the resistor R6 is set as point 5, the connection point of the resistor R6 and the resistor R7 is set as point 6, the connection point of the resistor R7 and the resistor R8 is set as point 7, and the connection point of the resistor R8 and the resistor R1 is set as point 8. The signals of points 5 and 1 are used to measure the user's weight; the signals of points 4, 6 and points 2 and 8 can be used to measure the weight difference between the front and rear sides.

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