A digital counter based on key light display number and its counting method

Abstract

This invention discloses a digit counter based on key-based indicator lights and its counting method, belonging to the technical field of counting devices and training tools. The digit counter includes number keys (1-10), a number key 0, a flashing light key, a decimal point key, lights, a switch, and a control chip. Each number key has a light and a switch; the switch controls the lights of all number keys less than or equal to their number to illuminate, and the lights of number keys greater than their number to turn off. Number key 0 controls the power on / off, the flashing light key controls the flashing mode, and the decimal point key controls the decimal point light's on / off state. The control chip detects key presses and controls the lights' on / off state. Carry and borrow are achieved manually by adding or subtracting 1 from the higher digits, without automatic chip control. The counting method includes power on / off, manual counting, flashing light mode, carry, borrow, multi-digit flash reading training, sequential memory training, software simulation, and mental arithmetic training steps. This invention features a simple structure, convenient operation, quiet and portable design, and strong training appeal. It can replace traditional abacus and mental arithmetic training methods, reducing the learning curve and making it suitable for various scenarios such as mathematics teaching, intelligence training, concentration training, daily calculation, mental arithmetic training, and prevention and treatment of Alzheimer's disease.

Description

Technical Field

[0001] This invention relates to the field of counting devices and training tools, specifically to a digital counter based on key-activated light display and its counting method. It is mainly used in scenarios such as mathematics teaching, basic counting training, concentration training, Alzheimer's disease prevention, and intelligence maintenance and recovery. It can replace the traditional abacus and mental arithmetic training methods, and solve the technical problems of the traditional abacus being noisy, inconvenient to carry, and the mental arithmetic training being difficult and slow to learn. Background Technology

[0002] In the field of mathematics teaching and basic number training, the traditional counting tools are mainly the abacus and mental arithmetic training methods. Among them, the abacus, as a traditional counting and calculation tool, works by recording and calculating values ​​by moving the beads. However, it has obvious drawbacks: First, the abacus is bulky and inconvenient to carry, making it unsuitable for outdoor training and mobile teaching scenarios. Second, moving the beads generates mechanical friction noise, which affects the surrounding environment and is not suitable for quiet environments such as libraries and classrooms. Third, the rules for moving the abacus are complex, requiring users to memorize a large number of bead-moving formulas, making it difficult to learn, especially for young children, resulting in a high learning cost.

[0003] Mental arithmetic training methods involve memorizing the actions of moving abacus beads to form virtual abacus beads in the mind for calculation. However, these methods have significant drawbacks: First, the training is extremely difficult, requiring long-term memorization of complex formulas and the logic of bead manipulation, which most users find hard to master quickly. Second, the training process is tedious and lacks interest, easily causing users to lose interest. Third, the memory of carrying and borrowing in mental arithmetic relies on muscle memory and mental inertia formed through long-term training; once training is interrupted, the skills are prone to deterioration, and the calculation process cannot be presented intuitively, which is not conducive to teaching demonstrations and error correction.

[0004] Existing technologies include some electronic counters, such as the Chinese utility model patent "An Electronic Abacus" with announcement number CN201921567890.1, which simulates the on / off state of abacus beads on an electronic display screen to achieve counting functions. However, this device still relies on the traditional abacus bead-moving logic, requiring users to operate according to abacus rules, thus failing to address the issue of high learning curve. Furthermore, its light-up logic corresponds to the abacus beads, lacking the simplified operation of directly controlling the light's on / off state using numeric keypad switches, and thus cannot truly replace abacus mental arithmetic training. Another Chinese invention patent, "A Concentration Training Counter" with announcement number CN202010876543.2, only possesses basic flashing light memory training functions, lacking carry and borrow operation mechanisms, making it unable to count and calculate multi-digit numbers. Moreover, it does not clearly define the corresponding control logic between buttons and lights, resulting in an incomplete technical solution that cannot replace traditional abacuses and abacus mental arithmetic.

[0005] Therefore, existing counting tools and training methods have shortcomings such as inconvenience in carrying, high noise, high difficulty in learning, tedious training, and imperfect functions. There is an urgent need for a digit counter and its counting method that is simple in structure, easy to operate, quiet and portable, highly interesting in training, and can replace the traditional abacus and mental arithmetic. Summary of the Invention

[0006] 1. Purpose of the invention The purpose of this invention is to overcome the shortcomings of traditional abacuses, mental arithmetic, and existing electronic counters in the prior art, and to provide a digital counter based on key-activated light display and its counting method. This invention achieves counting and training functions that are simple in structure, easy to operate, quiet and portable, and highly engaging, replacing traditional abacus and mental arithmetic training methods, reducing the learning curve for counting, calculation, and training, and is suitable for various teaching and training scenarios.

[0007] 2. Technical Solution To achieve the above objectives, this invention provides a digital counter based on key-button illumination, comprising: at least ten numeric keys, numbered 1 to 10, each numeric key having an indicator light and a switch at its button position; the switch of each numeric key is used to control the illumination of all indicators of numeric keys with numbers less than or equal to their own number, and to deactivate the indicators of all numeric keys with numbers greater than their own number; a numeric key 0 for controlling power on and off, with a switch at its button position, which is only used for power on and off and does not participate in the illumination control of the numeric indicators; a flashing light key for controlling the flashing mode, with a corresponding control light at its button position; a decimal point key for controlling the decimal point indicator light, with an independent indicator light and switch at its button position; and a control chip electrically connected to the switches and indicators of all the above-mentioned keys, for detecting key-button operation and controlling the corresponding indicator lights to illuminate and display the number.

[0008] The power-on and power-off control methods are as follows: pressing the button switch for the number key 0 once powers on the device; pressing the button switch for the number key 0 twice powers off the device. In the power-on state, all the lights corresponding to the number keys and the decimal point are initially off, indicating that the currently recorded value is zero. In the power-off state, all the lights corresponding to the number keys and the decimal point are grayed out, and the control chip is in a low-power sleep state. In the power-on state, pressing the button switch for the number key 0 twice consecutively will trigger the control chip to turn off all the lights corresponding to the number keys and the decimal point of the current digit counter, resetting the recorded value to zero and achieving a zeroing operation.

[0009] The manual counting mode works as follows: When the user presses any number key N (N is an integer between 1 and 10), the switch triggers the control logic, causing the lights for number keys 1 to N to light up simultaneously, while the lights for number keys N+1 to 10 to turn off simultaneously. The current lighting state is maintained, displaying the current count value, until the next button press changes the state. The current count value equals the number N corresponding to the last pressed key. When the button for number key 10 is pressed, it controls all the lights for number keys 1 to 10 to light up, indicating that the current count value is 10. The lights corresponding to the decimal point and the number keys are independently controlled by the control chip, and their lighting states do not affect each other. Pressing the button for the decimal point key once lights up its corresponding light; pressing the button for the decimal point key twice turns off its corresponding light.

[0010] The flashing mode works as follows: When the device is powered on, pressing the flashing button once activates the flashing mode; pressing the flashing button twice deactivates the flashing mode. In flashing mode, the control chip randomly generates a natural number N between 1 and 10, controlling all the LEDs of the number keys 1 to N to automatically light up for a first duration, then turn off for a second duration. The control chip then randomly generates a new value N and controls the corresponding LED to light up, repeating this cycle until the flashing mode is turned off.

[0011] When recording multi-digit numbers, multiple digit counters are arranged in parallel, representing the ones, tens, hundreds, thousands, ten thousands, and so on, from right to left. Each of the parallel digit counters independently counts its own digits and controls the on / off state of its indicator light. Carry and borrow operations are performed manually. When a lower digit's count reaches 10, the corresponding number key on the adjacent higher digit counter to the left is pressed to increment by 1 (carry), and the current digit counter is reset to zero. When a lower digit's count is insufficient for subtraction, the corresponding number key on the adjacent higher digit counter to the left is pressed to decrement by 1 (borrow), and the current digit counter's count is adjusted to the difference between 10 and the current value. Each digit counter is equipped with a decimal point key and a corresponding indicator light and switch to display the decimal point in the corresponding digit, thus supporting decimal counting.

[0012] The present invention also provides a counting method based on the above-mentioned digital counter, comprising the following steps: Step A: Use the button switch with the number key 0 to turn the digital counter on or off. When the counter is on, all the lights are off and the count value is 0. Step B: With the device powered on, the user can switch between flash mode and manual counting mode by pressing the flash button. Step C: In manual counting mode, the control chip detects the button switch of the number key N pressed by the user, triggers the control logic, controls the lights of the number keys numbered 1 to N to turn on, and the lights of the number keys numbered N+1 to 10 to turn off, and maintains this state until the next button switch operation; Step D: In flash mode, the control chip randomly generates a natural number N from 1 to 10, controlling all the light groups with number keys 1 to N to automatically turn on for a first duration and turn off for a second duration, repeating this cycle to train the user's concentration and memory, until the user double-presses the flash button to turn off the mode.

[0013] The counting method also includes a carry step: when any digit counter records the value 10, if the next step is an addition operation, then by manually pressing the corresponding number key on the adjacent high-order digit counter to the left, 1 is added, and at the same time, the lights of all the number keys on the current digit counter are turned off (the recorded value is cleared to zero), thus completing the carry.

[0014] The counting method also includes a borrowing step: when the value recorded by any digit counter is less than the value to be subtracted (i.e., insufficient to subtract), the value is manually reduced by 1 on the adjacent higher digit counter to the left (i.e., the corresponding number key is pressed to reduce the higher digit value by 1), and the value of the current digit counter is adjusted to the difference between 10 and the current value, thus completing the borrowing. The borrowing operation is completed manually throughout and does not rely on automatic control by the control chip.

[0015] The counting method also includes multi-digit counting steps: multiple digit counters are arranged in parallel, representing the ones, tens, hundreds, thousands, ten thousands, etc., from right to left. Each digit counter independently records its corresponding digit value. When any digit counter records 10, if it is an addition operation, manually add 1 to the digit counter to its left to complete the carry. When any digit counter is insufficient for subtraction, manually subtract 1 from the digit counter to its left to complete the borrow. By operating the decimal point key button switch on each digit counter, the corresponding light is controlled to turn on or off, and the decimal point is displayed in the corresponding digit, thus realizing the recording of decimals.

[0016] The counting method also includes a multi-digit flash reading training step: In a multi-digit counter arranged in parallel, the user turns on the flashing mode of one or more digit counters by pressing the flashing button; each digit counter in flashing mode, under the control of the control chip, independently and automatically generates an N value and controls all the lights of the corresponding number keys 1 to N to light up. The user needs to remember the values ​​that appear sequentially on multiple digits at the same time to train higher-order attention and multi-task memory.

[0017] The counting method also includes a sequential memory training step: the parallel digit counters are divided into a flashing area and a counting area, where the flashing area is used to automatically and randomly flash values, and the counting area is used for manual recall by the user; multiple digit counters in the flashing area automatically and randomly flash values ​​in a preset left-to-right order; after the flashing area completes one flashing cycle for all digits, the user needs to press the memorized values ​​in the corresponding digit counters in the counting area in the same order to train sequential memory ability and concentration; the training can start from a lower number of digits and gradually increase to a higher number of digits to achieve step-by-step training.

[0018] The counting method can be implemented through software simulation, which supports the parallel arrangement of multiple digits. The left digits are in flashing mode, and the right digits are in counting mode. The software integrates a value generation module to generate training values ​​and control the on / off logic of each digit's indicator. The software simulation method further improves portability and can run on terminal devices such as computers, tablets, and mobile phones, eliminating the need to carry a physical digit counter.

[0019] The counting method also includes a mental arithmetic ability training and assessment step: After completing flash reading training and sequential memory training using the digital counter of this invention, the user gradually becomes less dependent on the visual dependence of the button lights and enters the mental arithmetic training stage; the mental arithmetic training includes two main modes: visual calculation and auditory calculation; visual calculation mode: through the digital counter of this invention or associated display devices, numbers are presented visually (including but not limited to: button lights, screen display, paper cards, etc.). After viewing the numbers, the user performs mental calculations and outputs the calculation result by pressing the button switch of the digital counter of this invention; auditory calculation mode: through the digital counter of this invention or associated voice devices, numbers are announced aloud auditorily. After hearing the numbers, the user performs mental calculations and outputs the calculation result by pressing the button switch of the digital counter of this invention; the carry and borrow logic in the mental arithmetic training is consistent with the manual carry and borrow operations of this digital counter, helping users quickly master the carry and borrow rules, further improving the training effect, and replacing the carry and borrow formula training of abacus mental arithmetic.

[0020] 3. Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: (1) Replacement of traditional abacus and mental arithmetic: This invention achieves counting by controlling the light to turn on and off with a button switch, eliminating the need to memorize the abacus bead-moving rules and mental arithmetic formulas, significantly reducing the learning difficulty; there is no mechanical friction noise, and it is small in size and easy to carry, overcoming the shortcomings of traditional abacus being noisy and inconvenient to carry, while also solving the problems of boring and difficult mental arithmetic training.

[0021] (2) Simple and intuitive operation: Each number key switch directly controls the light on and off within the corresponding number range, and the recorded value is intuitive and visible without complicated operation; carry and borrow are operated manually, which conforms to the user's traditional counting habits, and the operation is simple and not easy to make mistakes. Compared with abacus bead carrying and abacus mental arithmetic carrying memory, it is more practical.

[0022] (3) Rich in functions and highly interesting in training: It integrates functions such as manual counting, flashing light memory training, multi-digit flash reading training, sequential memory training and mental arithmetic training. Compared with traditional abacus and mental arithmetic, the training method is more interesting and can effectively improve the user's concentration and memory. It is suitable for the training needs of users of different ages.

[0023] (4) Wide range of applicable scenarios: It can be used as a math teaching tool for classroom demonstrations, as a training tool for concentration, memory and mental arithmetic training, as a training tool and method for medical institutions to prevent Alzheimer's disease and restore intelligence, and can also be simulated through software. It is compatible with terminal devices such as computers, tablets and mobile phones to meet the usage needs of various scenarios and groups of people, including outdoor and indoor environments.

[0024] (5) Simple structure and low cost: The core components include only digital keys, lights, switches and control chips. The structure is simple, the manufacturing difficulty is low, the cost is controllable, and it is easy to mass-produce and promote its use. 4. Description of the attached drawings Figure 1 : A schematic diagram of the structure of a single digit counter of the present invention; 1: Number key 1 button, 2: Number key 2 button, 3: Number key 3 button, 4: Number key 4 button, 5: Number key 5 button, 6: Number key 6 button, 7: Number key 7 button, 8: Number key 8 button, 9: Number key 9 button, 10: Number key 10 button, 11: Decimal point button, 12: Power and chip area, 13: Flash light button, 14: Number key 0 button (power switch), 15: Main body (panel).

[0026] Figure 2 The following is a schematic diagram of the structure of multiple digit counters arranged in parallel according to the present invention; the following is a diagram of eight digit counters arranged in parallel, from right to left, representing the ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions, and ten millions places respectively.

[0027] Figure 3 : A block diagram showing the connection relationship between the control chip and various components of this invention; Figure 4 : A schematic diagram of the operation process of the manual counting mode of this invention; Figure 5 : A schematic diagram of the operation process of the flashing light mode of this invention; Figure 6: A schematic diagram of the carry operation process of this invention; Figure 7 : Schematic diagram of the borrowing operation process of this invention. 5. Detailed Implementation The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can accurately understand the technical solution of the present invention and implement it.

[0029] Example 1: Basic operation of a single digit counter This embodiment provides a single-digit counter, the structure of which is as follows: Figure 1 As shown, it includes 10 numeric keys (numbered 1-10), 1 numeric key 0, 1 flashing light key, 1 decimal point key, 13 lights (each key corresponds to one light except for the numeric key 0), 14 switches (each key corresponds to one switch), and 1 control chip. The control chip is electrically connected to all switches and lights, and is used to detect switch operations and control the lights to turn on and off.

[0030] Power-on operation: Press the number key 0 to turn on the device, and all lights will be off. Record the value as 0. Power off operation: Double-press the number 0 key to turn off the device. All lights will turn gray, and the control chip will enter a low-power sleep state. Manual counting operation: When the user presses the switch for number key 5, the control chip detects the operation and controls the lights for number keys 1-5 to turn on, while the lights for number keys 6-10 turn off, and the current count value is 5; if the user subsequently presses the switch for number key 8, then the lights for number keys 1-8 will turn on, while the lights for number keys 9-10 will turn off, and the count value will be updated to 8; if the user presses the switch for number key 10, then all the lights for number keys 1-10 will turn on, and the count value will be 10. Decimal point operation: Pressing the decimal point key once will turn on the corresponding light; pressing the decimal point key twice will turn off the corresponding light. The on / off state of the decimal point light and the number key lights do not affect each other. Reset operation: Press the switch on the number 0 key twice in succession. All number keys and the decimal point light will turn off, and the value will be reset to zero. Flash mode operation: Press the flash button once to turn on the flash mode. The control chip randomly generates a natural number N between 1 and 10 (e.g., N=6), which controls all the lights on the number keys 1-6 to be lit for a first duration (e.g., 1 second), and then the lights are turned off for a second duration (e.g., 3 seconds). Then, another N value is randomly generated (e.g., N=4), and the above process is repeated. Press the flash button twice to turn off the flash mode.

[0031] Example 2: Multi-digit counting and carry / borrow operations This embodiment provides a structure with eight digit counters arranged in parallel, such as... Figure 2 As shown, from right to left, they represent the units, tens, hundreds, thousands, ten thousands, hundred thousands, millions, and ten millions place counters, respectively.

[0032] Multi-digit counting operation: When recording the value "25", press the switch of the number key 5 on the units counter (the lights of 1-5 will light up), and press the switch of the number key 2 on the tens counter (the lights of 1-2 will light up); when recording the value "3.7", press the switch of the number key 7 on the units counter, press the switch of the decimal point key (the decimal point light will light up), and press the switch of the number key 3 on the tens counter. Carry operation: The current value of the units counter is 10 (all lights from 1 to 10 are lit). If you want to perform an addition operation (such as adding 1), you need to manually press the corresponding number key on the tens counter (if the current value of the tens counter is 2, press the number key 3) to manually add 1. At the same time, all the lights on the units counter will turn off (the value will be cleared to zero), and the carry operation will be completed. At this time, the value will be updated to "30". Borrowing operation: The current value of the units counter is 3 (the lights for 1-3 are on). If you want to perform a subtraction operation (such as subtracting 5), manually press the corresponding number key on the tens counter (if the current value of the tens digit is 4, press the number key 3) to manually subtract 1. At the same time, press the switch for the number key 8 on the units counter (the lights for 1-8 are on, and the value is 8) to complete the borrowing operation. At this time, the value is updated from "43" to "38".

[0033] Example 3: Multi-digit flash reading training This embodiment uses four digit counters arranged in parallel (ones, tens, hundreds, and thousands). All counters are activated in flashing mode. Under the control of a control chip, each counter independently and randomly generates an N value from 1 to 10 and controls all corresponding lights numbered 1 to N to illuminate. The user needs to simultaneously observe the on / off state of the four digit lights, memorizing the sequential flashing values ​​for each digit, thus training higher-order focus and multitasking memory. For example, the thousands digit flashes N=2 (lights 1-2 illuminate), the hundreds digit flashes N=7 (lights 1-7 illuminate), the tens digit flashes N=5 (lights 1-5 illuminate), and the ones digit flashes N=9 (lights 1-9 illuminate). The user needs to memorize the value "2759" and manually reproduce this value in the counting area.

[0034] Example 4: Sequential Memory Training The six digit counters are divided into three flashing areas and three counting areas. The flashing areas display values ​​randomly from left to right (hundreds, tens, units) (e.g., hundreds digit flashes N=4, tens digit flashes N=6, units digit flashes N=8), in the order of hundreds → tens → units. After the flashing in the flashing area, the user presses the corresponding number key in the counting area (hundreds → tens → units) in the same order (hundreds → tens → units) to reproduce the value "468", completing the training. Training can be gradually increased from one digit to twelve digits, achieving a step-by-step training approach.

[0035] Example 5: Training and Assessment of Mental Arithmetic Ability After completing basic flash reading and sequential memory training, users enter the mental arithmetic training stage. The training includes two modes: **Visual Calculation Mode:** The numbers "35 + 27" are displayed by the on / off lights of the digit counter. Users mentally calculate (35 + 27 = 62), then manually press the number 6 key on the tens digit counter and the number 2 key on the units digit counter to output the result. **Audio Calculation Mode:** The numbers "81 - 36" are read aloud by a connected voice device. Users mentally calculate "45" and then manually output the result. Throughout the training, the carry and borrow logic is consistent with the manual operation of the digit counter, helping users quickly master the carry and borrow rules and assessing their mental arithmetic abilities.

[0036] Example 6: Software Simulation Implementation The counting method of this invention can be implemented through software simulation. The software simulation supports a parallel arrangement of up to 12 digits, with the left side being the flashing area and the right side being the counting area. The software integrates a value generation module for generating training values ​​and controlling the on / off logic of the lights. Users can run the software on terminal devices such as computers, tablets, and mobile phones. The operation logic is consistent with that of a physical digital counter, eliminating the need to carry a physical device and further improving portability. It is suitable for scenarios such as outdoor training and remote teaching.

Claims

1. A digital counter, characterized in that, include: There are at least ten number keys, numbered from 1 to 10. Each number key has an indicator light and a switch. The switch for each number key controls the indicator lights of all number keys whose numbers are less than or equal to their own numbers to be on and the indicator lights of all number keys whose numbers are greater than their own numbers to be off. A numeric keypad 0 has a switch at its position for controlling the power on and off; A flash button is used to control the flash mode to be turned on and off; A decimal point key has an independent light and switch for controlling the light on and off. A control chip is connected to the switches and lights of all the above buttons to detect button operations and control the corresponding lights to illuminate and indicate the numbers. The multiple digit counters can be arranged in parallel to record multi-digit numbers, representing the ones, tens, hundreds and higher digits from right to left. Each digit counter independently completes the counting of its own digits and the control of the light on and off. Carry and borrow are achieved manually by operating on the adjacent higher digit counter.

2. The digital counter according to claim 1, characterized in that, The switching control method of the numeric key 0 is as follows: a single press turns on the power and a double press turns off the power. In the power-on state, all the lights corresponding to the numeric keys and the decimal point are initially off, indicating that the value is zero. In the power-off state, all the lights are gray and the control chip enters a low-power sleep state. Pressing the numeric key 0 twice consecutively in the power-on state will clear the value, turn off all the lights and reset the value to zero.

3. The digital counter according to claim 1, characterized in that, In manual counting mode, when any number key N is pressed, the control chip controls the lights of number keys 1 to N to turn on and the lights of number keys N+1 to 10 to turn off; when number key 10 is pressed, all lights of number keys 1 to 10 will turn on; the lights of the decimal point key and the lights of the number keys are controlled independently by the control chip and do not affect each other.

4. The digital counter according to claim 1, characterized in that, The working method of the flashing mode is as follows: press the flashing button once to turn it on, and press it twice to turn it off; after turning it on, the control chip randomly generates a natural number N from 1 to 10, controls the lights of the number keys numbered 1 to N to be on for a first duration, then turn off for a second duration, and the cycle repeats. When multiple digit counters are arranged in parallel, the flashing mode can be turned on simultaneously for multi-digit flash reading training.

5. The digit counter according to claim 1, characterized in that, When the value of the lower digit is 10 or more, manually add 1 to the adjacent higher digit counter on the left and clear the current digit counter to complete the carry. When the value of the lower digit is insufficient for subtraction, manually subtract 1 from the adjacent higher digit counter on the left and adjust the current digit counter to the difference between 10 and the current value to complete the borrow. The decimal point key of each digit counter independently controls the corresponding light to support decimal counting.

6. A counting method based on the digit counter of claim 1, characterized in that, Includes the following steps: The digital counter is turned on or off by using the 0 key. When the counter is turned on, all the lights are off. In manual counting mode, the control chip detects the number key N pressed by the user, controls the lights numbered 1 to N to turn on and the lights numbered N+1 to 10 to turn off, and maintains this state until the next key press operation; When any digit counter records the value 10 and the next step is addition, manually add 1 to the adjacent higher-order digit counter on the left and clear the current digit counter to zero to complete the carry-over. When the value recorded by any digit counter is less than the value to be subtracted, manually subtract 1 from the adjacent higher digit counter on the left and adjust the current digit counter value to the difference between 10 and the current value to complete the borrowing. Multiple digit counters are arranged in parallel to count multi-digit numbers, with each digit counting independently and carry and borrow implemented manually.

7. The counting method according to claim 6, characterized in that, In flash mode, the control chip randomly generates a natural number N from 1 to 10, which controls the number keys 1 to N to automatically turn on the lights for a first duration, turn off the lights for a second duration, and cycle until the flash mode is turned off by double-pressing the flash button. When multiple digit counters are turned on in flash mode simultaneously, each digit independently generates a random value of N and controls the corresponding light to turn on or off, in order to train multi-task memory.

8. The counting method according to claim 6, characterized in that, The parallel digit counters are divided into a flashing area and a counting area. The flashing area automatically and randomly flashes values ​​in a preset left-to-right order. After the user completes one flashing cycle in the flashing area, the remembered values ​​are reproduced in the same order on the corresponding digit counters in the counting area.

9. The counting method according to claim 6, characterized in that, The counting method is implemented through software simulation. The software supports the parallel arrangement of multi-digit counters and integrates a value generation module to generate training values ​​and control the on / off logic of each digit light. It can run on computers, tablets, or mobile terminals.

10. The counting method according to claim 6, characterized in that, It also includes a mental arithmetic training step: numbers are presented visually or audibly through the digit counter or related device, and the user calculates mentally and then outputs the calculation result by pressing a button switch on the digit counter, wherein the carry and borrow logic is consistent with the manual carry and borrow operation.

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