CN1631471A - Control method of treadmill operation - Google Patents

Abstract

A running control method of a treadmill is characterized in that an inductor senses that a motor is in an idle load or load state when the motor runs initially, and if the motor is in the idle load state, the motor is in a display state, the motor acts according to an instruction; if the motor is in a load state, the sensor and the microprocessor further judge that the motor is in a continuous load state or an intermittent load state, and the continuous load state indicates that the user runs normally, and then the motor acts according to the instruction; if the motor exceeds the set off time and no load is generated, indicating that the user leaves, controlling the motor to stop operating; if the running belt is blocked or a person stands or sits on the running belt when the running belt is in a continuous load state, controlling the motor to stop immediately; thereby the treadmill can be controlled for display and safety stop.

Description

Control method of treadmill running

technical field

The invention relates to the technical field of running control of a treadmill, in particular to a control method for detecting the running state of the treadmill by detecting the running state of the treadmill.

Background technique

By the way, electric treadmills are mainly motor-driven running belts for users to run on the treadmills. During the period, the motor speed can be adjusted according to the needs of users to change the speed of running belts, so that users can run at different speeds. Run for better exercise.

For the safety of the user, the traditional electric treadmill is equipped with a safety device, which is controlled by detecting the speed of the motor. When the speed of the motor decreases to a certain level, it means that there may be foreign objects stuck on the running belt, and the safety device will be activated. Control the motor to stop rotating to keep the safety of the user.

However, when a heavier user is running at a slower speed, the moment the user steps on the running belt, the motor will suddenly drop in speed due to a sudden increase in load, which is likely to cause misjudgment by the safety device , and stop the operation of the motor, so that the user cannot run smoothly.

Based on the shortcomings of the aforementioned safety devices, a feedback control circuit system is designed.

The way of feedback control is mainly to use the sensor to detect the actual running voltage or current of the motor as a basis for adjusting the motor speed. For example, when the user's weight is heavy or the running speed is fast, the load on the motor will increase. When the sensor detects this situation, it will increase the voltage or current supplied to the motor to increase the speed or speed of the motor. The torque makes the running speed of the running belt driven by the motor closer to the actual demand of the user, otherwise the voltage or current supplied to the motor is reduced to reduce the speed or torque of the motor.

However, when the user's limbs, shoelaces, or trousers are caught by the running belt, the load on the motor will increase accordingly. When the aforementioned feedback mechanism detects this situation, it will increase the voltage or current supplied to the motor. Increase the rotational speed or torque of the motor, making it more difficult for the user to escape, causing the user to fall, and even causing injury to the user in severe cases. And when the user temporarily leaves the treadmill for some reason, the above-mentioned feedback control method will slow down the speed or torque of the motor due to the reduction of the actual load, but it will still maintain the running state, that is, the running belt will always remain in the running state. At this time, if other people (such as children, etc.) do not notice, and suddenly stand on the treadmill, there is a possibility of accident or danger.

Furthermore, when the treadmill is displayed in the exhibition room, because there are no actual users running on the treadmill, the aforementioned feedback control mechanism will limit the running speed of the motor and the running belt, making it difficult to fully demonstrate the performance of the treadmill. actual function.

Therefore, it is indeed necessary to further improve the aforementioned feedback control method.

Contents of the invention

The problem to be solved by the present invention is to provide a control method for running the treadmill.

In order to solve the above problems, the technical scheme of the control method of treadmill operation of the present invention is:

The treadmill is electrically connected with a microprocessor, a power pack, a control panel, a motor and at least one sensor. The control panel is used for inputting relevant control commands, and the microprocessor controls the motor to perform corresponding actions. , the motor drives a driving mechanism to drive the running belt to run, and the sensor is used to sense the actual load state of the motor, and the steps of the control method are as follows:

Turn on the power:

Turn on the power through the operation of the control panel;

standby:

After the power is turned on, the microprocessor, motor and sensor are all in standby state;

Command input:

Input relevant control commands from the control panel:

Motor running judgment:

The sensor judges whether the motor is running. If the motor is not running, the microprocessor will make a fault judgment; if the motor is running, it will enter the next step;

Attribute judgment:

The sensor senses whether the motor is in a no-load or load state. If the motor is in a no-load state, the microprocessor determines to enter the no-load step; if the motor is in a load state, the microprocessor determines to enter the load step;

No load:

The motor is unloaded, which means that there is no user on the treadmill, which belongs to the display state, so it will continue to sense and cycle through the attribute judgment steps; if the motor is always in the unloaded state, the microprocessor will control the motor to continue to move according to the command until the preset When the time expires, control the motor to stop running; or accept the command of the control panel to stop the operation and control the motor to stop running, and then return to the standby step after the motor stops running;

load:

The motor load indicates that there is a user on the treadmill, which belongs to the actual use state. At this time, the sensor will continuously sense the state of the motor, and the microprocessor will confirm whether the motor is in a continuous load state or an intermittent load state;

Sustained load:

If the motor is in a continuous load state, it means that the user has stopped running and is standing on the running belt or the running belt is stuck, so the microprocessor will control the motor to stop immediately to avoid danger, and then return to the standby step;

Intermittent load:

If the motor is in the intermittent load state, it means that the user continues to run on the treadmill, and the motor will be loaded every time the footsteps step on the running belt. At this time, the microprocessor and the sensor will detect the motor's "reload during the intermittent time" In the situation of ", if there is another load on the motor within the set intermittent time, it means that the user is exercising normally, then it will continue to sense and cycle to judge "reload during the intermittent time", and the microprocessor will control The motor operates according to the command until the preset time expires, and the control motor stops running; or the control panel stops the operation command, and the control motor stops running; if no load occurs beyond the set interval time, it means that the user has stopped. Leave the treadmill completely, at this time the microprocessor will control the motor to stop and return to the standby step.

The sensor senses the change of the current on the motor circuit as a value for judging whether the motor is unloaded or loaded.

The sensor senses the voltage change on the motor circuit as a value for judging whether the motor is unloaded or loaded.

Compared with the prior art, the beneficial effect of the control method of treadmill operation of the present invention is:

It mainly uses a sensor to detect whether the motor is in the no-load or load state at the beginning of the motor operation. If the motor is in the no-load state, it means that there is no user on the treadmill, which belongs to the display state. Therefore, the microprocessor controls the motor according to the instructions. Continue to operate until the preset time is terminated or the operation command is accepted; if the motor is in the load state, the sensor and the microprocessor will further judge whether the motor is in the continuous load or intermittent load state; when the user is in the normal running state, The motor will be in an intermittent load state. At this time, the microprocessor will control the motor to continue to operate according to the command until the preset time is terminated or the end of the operation command is received. If the motor exceeds the set intermittent time and no load occurs, it means that the user has left the running The microprocessor controls the motor to stop; if the motor is in a continuous load state, it means that the user has stopped running or the running belt is stuck, so the microprocessor will control the motor to stop; thus making the treadmill both It has dual control functions of display and safety stop.

Description of drawings

Fig. 1 is the configuration diagram of the hardware equipment of the control method of treadmill operation of the present invention;

Fig. 2 is a control flow chart of the control method for running the treadmill of the present invention.

Detailed ways

As shown in FIG. 1 and FIG. 2 , the one shown in the figure is the control flow of the selected embodiment of the present invention, which is for illustration only, and is not limited in patent application.

The treadmill of this embodiment is electrically connected by a microprocessor 11 and a power pack 12, a control panel 13, a motor 14 and at least one sensor 15, and between the sensor 15 and the microprocessor 11 It is connected in a feedback control mode. The control panel 13 is for inputting relevant control commands, and the microprocessor 11 controls the motor 14 to perform corresponding actions. The motor 14 drives a driving mechanism 16 to drive the running belt to run, and the sensor The controller 15 is for the actual load status of the induction motor 14 .

As shown in Figure 2, the steps of the control method for running the treadmill are as follows:

Turn on the power:

The power is turned on by the operation of the control panel 13 .

standby:

After the power is turned on, the microprocessor 11, the motor 14 and the sensor 15 are all in a standby state.

Command input:

The relevant control commands are input by the control panel 13 .

Motor running judgment:

Whether the motor 14 is running is judged by the sensor 15. If the motor 14 is not running, the microprocessor 11 will make a fault determination; if the motor 14 is running, then enter the next step.

Attribute judgment:

The sensor 15 senses that the motor 14 is in a no-load or load state, and the state of the motor 14 can be judged by sensing the current change or voltage change on the circuit of the motor 14 by the sensor 15 as a value for judging the motor no-load or load. If the motor 14 is in the no-load state, the microprocessor 11 determines to enter the no-load step; if the motor 14 is in the load state, the microprocessor 11 determines to enter the load step.

No load:

The motor 14 being unloaded means that there is no user on the treadmill, which belongs to the display state, and will continue to sense and cycle through the attribute judgment steps. If the motor is always in the no-load state, the microprocessor 11 will control the motor 14 to continue to act according to the instruction until the preset time ends, and then control the motor to stop running; or accept the command of the control panel 13 to stop the operation and control the motor to stop running, Return to the standby step after the motor stops. When the attribute judging step is performed cyclically, if the motor is loaded, it means that a user has entered the running belt, and the microprocessor 11 judges to enter the loading step.

load:

The motor load indicates that there is a user on the treadmill, which belongs to the actual use state. At this time, the sensor 15 will continuously sense the state of the motor 14, and the microprocessor 11 will confirm whether the motor is in a continuous load state or an intermittent load state.

Sustained load:

If the motor 14 is in a continuous load state, it means that the user has stopped running and is standing on the running belt or the running belt is stuck (maybe the user's trouser legs, shoelaces or their limbs are stuck), so the microprocessor will The control motor stops immediately to avoid danger, and returns to the standby step.

Intermittent load:

If the motor 14 is in the intermittent load state, it means that the user continues to run on the treadmill, and the motor will be loaded when each step steps on the running belt. At this time, the microprocessor 11 and the sensor 15 will detect the "intermittent" state of the motor 14. If there is another load on the motor within the set interval time (such as: 2 seconds), it means that the user is running (or walking) normally, and then it will continue to sense and cycle "Reload during intermittent time" judgment, and the microprocessor 11 controls the motor 14 to act according to the command until the preset time expires, the control motor stops running; or accepts the command to stop the operation of the control panel 13, and controls the motor 14 to stop If no load occurs beyond the set interval time, it means that the user has left the treadmill completely, and the microprocessor 11 will control the motor 14 to stop and return to the standby step.

It can be seen from the various steps of the aforementioned control method that the control method of the present invention uses the sensor 15 to sense whether the motor 14 is in a no-load or loaded state when the motor 14 is running initially, to distinguish whether the operation of the treadmill belongs to the display state or the actual state of use. If it is in the display state, it means that there are display personnel beside the treadmill, and it is safe and sound. Therefore, the microprocessor 11 will control the motor 14 to continue to act according to the instruction, so as to fully display the function of the treadmill until the preset time is terminated or the operation instruction is accepted. .

If it belongs to the actual use state, the sensor 15 and the microprocessor 11 further determine whether the motor 14 is in a continuous load state or an intermittent load state. When the load is intermittent and there is a load during the intermittent time, it means that the user continues to run on the treadmill, so the microprocessor 11 controls the motor 14 to continue to operate according to the instruction until the preset time ends or the operation instruction is accepted.

Importantly, a continuous load on the motor indicates that the user has stopped running and is standing on the running belt or that the running belt is stuck, so the microprocessor stops the motor immediately. Compared with the feedback control method in the prior art, which may cause accidents caused by continuously increasing the rotation speed and torque of the motor when the load continues to occur, the control method of the present invention is obviously safer.

When the motor is in the intermittent load state and the motor exceeds the set interval time without load, it means that the user has left the treadmill. In order to avoid accidents caused by other people suddenly standing on the treadmill, it is controlled by the microprocessor. Motor 14 stops action, and treadmill is stopped safely, avoids accident.

In summary, the control method of the present invention can not only effectively distinguish between display and actual use states, but also automatically stop the treadmill when the user leaves the treadmill, especially when the running belt is stuck, it can completely stop the running belt to avoid accidents. Unexpectedly, the treadmill can thus have dual control functions of display and safety stop.

Claims (3)

1, a kind of control method of treadmill operation, this treadmill is to make electrically connect by a microprocessor and a power pack, a control panel, a motor and at least one inductor, this control panel is for the relevant control instruction of input, and do corresponding action by microprocessor control motor, this motor is to drive a driving mechanism to drive the running tape travel, this inductor then is the actual loading state for induction motor, and the step of its control method is as follows:

Power-on:

By control panel operation power-on;

Standby:

Behind the electric power starting, microprocessor, motor and inductor all are in holding state;

The instruction input:

Import relevant control instruction by control panel:

Motor running is judged:

Judge by inductor whether motor turns round, if motor does not have the judgement that the microprocessor then of turning round can be done to be out of order; If motor then enters next procedure in running;

Determined property:

By inductor sensing motor is to be in zero load or load condition, if motor is in Light Condition, then the microprocessor judgement enters unloaded step; If motor is in load condition, then the microprocessor judgement enters load step; Unloaded:

The no user of the unloaded expression of motor is positioned on the treadmill, belongs to display state, therefore can continue sensing and circulate to carry out the determined property step; If motor is in Light Condition always, microprocessor can be controlled motor according to the instruction perseveration, and when the default time stopped, the control motor shut down; Perhaps accept the instruction that the operation of control panel stops and controlling motor to shut down, return back to the standby step after motor shuts down again; Load:

Motor load represents to have the user to be positioned on the treadmill, belongs to actual user mode, and this moment, inductor can continue the state of induction motor, and confirms that by microprocessor motor is to be in a continuous loading state or a continuous load condition;

Continuous loading:

If motor is in the continuous loading state, the expression user has stopped running and has stood in to run to be with or to run to be with and has been stuck, so microprocessor can control motor and stop immediately, causes danger avoiding, and returns back to the standby step again;

Between continuous load:

Continuous load condition between if motor is in, the expression user continues to carry out road-work on treadmill, load all took place in motor when each step was trampled the running band, this moment can be by the situation of microprocessor and inductor detecting motor " load again in break time ", if motor has load to take place in the break time of setting again, the expression user is normally moving, then continue sensing and circulation and carry out " load again in break time " judgement, and microprocessor can be controlled motor according to the instruction action, when the default time stopped, the control motor shut down; Perhaps accept the instruction that the operation of control panel stops, and the control motor shuts down; If the non-loaded generation of surpass setting break time represents that then the user leaves treadmill fully, microprocessor just can be controlled motor and stopped action this moment, and returned back to the standby step.

As the control method of claims 1 described treadmill operation, it is characterized in that 2, described inductor is the numerical value that is used as judging motor zero load or load with the current change on the sensing motor loop.

As the control method of claims 1 described treadmill operation, it is characterized in that 3, described inductor is the numerical value that is used as judging motor zero load or load with the voltage change on the sensing motor loop.

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