CN114788953A - Intelligent exercise intensity measurement and control system for fitness equipment - Google Patents
Intelligent exercise intensity measurement and control system for fitness equipment Download PDFInfo
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- CN114788953A CN114788953A CN202210569353.8A CN202210569353A CN114788953A CN 114788953 A CN114788953 A CN 114788953A CN 202210569353 A CN202210569353 A CN 202210569353A CN 114788953 A CN114788953 A CN 114788953A
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/01—User's weight
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/04—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations
- A63B2230/06—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations heartbeat rate only
- A63B2230/062—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations heartbeat rate only used as a control parameter for the apparatus
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/20—Measuring physiological parameters of the user blood composition characteristics
- A63B2230/207—P-O2, i.e. partial O2 value
- A63B2230/208—P-O2, i.e. partial O2 value used as a control parameter for the apparatus
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/30—Measuring physiological parameters of the user blood pressure
- A63B2230/305—Measuring physiological parameters of the user blood pressure used as a control parameter for the apparatus
Abstract
The invention relates to an intelligent exercise intensity measurement and control system for fitness equipment, which is applied to the fitness equipment and comprises a stress strain sensing device and a vital sign sensor; the stress-strain sensing device comprises a stress structure arranged on a stress surface or a stress arm of the fitness equipment and a processing circuit used for processing and amplifying stress change signals of the stress structure, wherein the stress structure is used for acquiring the stress change signals generated under the action of stress and outputting the stress change signals to the processing circuit; the vital sign sensor is used for acquiring human vital signs so as to adjust the resistance power of the fitness equipment by combining signals output by the processing circuit. The invention can effectively combine the stress change signal with the vital sign of the exerciser, thereby intelligently adjusting the resistance power of the fitness equipment, better monitoring and controlling the exercise intensity of the exerciser and achieving better fitness and exercise effects.
Description
Technical Field
The invention relates to the technical field of fitness equipment, in particular to an intelligent exercise intensity measurement and control system of the fitness equipment.
Background
With the continuous progress of society and the continuous improvement of living standard of people, the requirements of people on self life are continuously improved, wherein the requirement that the people have a good physical condition is a very outstanding embodiment, and the condition that the people have a healthy body is a prerequisite for facing the society and bearing responsibility. Therefore, people begin to pay more attention to their physical health than ever before and participate in various fitness activities, and fitness equipment as a convenient fitness equipment also begins to become a favorite fitness tool.
However, most of the power generated by the existing exercise apparatus is manually adjusted, and some exercise apparatuses also detect the heart rate to adjust the output power, such as the multi-purpose digital resistance device and the application thereof in the patent of my prior application CN202210028362.6, which can intelligently adjust the resistance power according to the heart rate and other vital signs. However, without the measurement and control of the intensity of the exercise, the exercise effect may not be optimal.
Therefore, there is a need for an intelligent exercise intensity measurement and control system for exercise equipment, which can combine exercise intensity with common vital signs to intelligently adjust the resistance power of the exercise equipment.
Disclosure of Invention
The invention aims to provide an intelligent exercise intensity measurement and control system for fitness equipment aiming at the problems in the prior art.
In order to realize the purpose of the invention, the invention adopts the following technical scheme: the intelligent exercise intensity measurement and control system for the fitness equipment is applied to the fitness equipment and comprises a stress strain sensing device and a vital sign sensor;
the stress strain sensing device comprises a stress structure arranged on a stress surface or a stress arm of the body-building apparatus and a processing circuit used for processing and amplifying stress change signals of the stress structure, wherein the stress structure is used for acquiring stress change signals generated under the action of stress and outputting the stress change signals to the processing circuit;
the vital sign sensor is used for acquiring the vital signs of the human body so as to regulate the resistance power of the fitness equipment by combining the signals output by the processing circuit.
The working principle and the beneficial effects are as follows: compared with the prior art, the stress strain sensing device is innovatively applied in the application, the stress surface, the stress arm and the like of the body-building apparatus are arranged, when the body-building apparatus does exercise, the stress structure outputs stress change signals under the stress action of the stress surface and the stress arm, the stress change signals are amplified by the processing circuit, the processing circuit performs data processing to output exercise intensity signals, the exercise intensity detection and control function is realized, after the exercise intensity signals exist, the heart rate parameters of an exerciser are acquired by combining the vital sign sensor, and the resistance power of the body-building apparatus is intelligently adjusted (such as a multipurpose digital resistance device in the prior application patent CN202210028362.6 and the multipurpose digital resistance device in the application), a complete body-building apparatus exercise intensity intelligent detection and control system is formed, and the optimal exercise effect can be achieved.
Furthermore, the stress structure comprises a plurality of strain gauges which are uniformly distributed on the stress surface or the stress arm of the fitness equipment. According to the arrangement, the stress change signal is output through the strain gauge when the strain gauge is stressed, so that the exercise intensity of the current exerciser can be conveniently and accurately detected, for example, on the pedal of a spinning bike, for example, on the pedal of an elliptical trainer, for example, on the stress arm of a flying bird training machine.
Further, when being applied to the pedal of body-building apparatus, atress structure includes the footboard main shaft of being connected with body-building apparatus, with the footboard casing of this footboard main shaft swivelling joint and locate a plurality of foil gauges of this footboard casing top inner wall below, every foil gauge all is connected with processing circuit electricity. According to the arrangement, when the pedal body-building apparatus is used, the strain gauge is arranged on the stress surface in the pedal, so that stress change can be conveniently acquired.
Furthermore, the pedal shell is divided into an upper pedal cover and a lower pedal cover which is detachably connected with the upper pedal cover, the upper pedal cover is provided with a cavity for mounting a strain gauge, and the lower pedal cover is rotatably connected with the pedal spindle. The pedal shell can be conveniently disassembled and assembled, the strain gauge can be conveniently installed, and the strain gauge is effectively protected.
Furthermore, a balancing weight is arranged in the lower cover of the pedal. This setting can suitably improve the weight of whole pedal through the balancing weight, plays better body-building effect.
Furthermore, the processing circuit comprises an operational amplifier circuit electrically connected with the strain gauge, a singlechip circuit electrically connected with the operational amplifier circuit and a communication circuit, wherein the operational amplifier circuit is used for operational amplification of a stress change signal output by the strain gauge and input of the stress change signal to the singlechip circuit, the singlechip circuit is used for processing the stress change signal after operational amplification and outputting a motion intensity signal to the communication circuit, and the communication circuit is used for outputting the motion intensity signal to a control end of the fitness equipment or a mobile terminal. This setting, the signal amplification of fortune circuit with foil gage output, make the single chip microcomputer circuit handle more easily, single chip microcomputer circuit is according to built-in procedure behind the good signal of processing (analytic signal generation motion intensity signal), just can send the signal for fitness equipment's control end or mobile terminal through communication circuit, thereby convenient vital sign such as combination sporter's rhythm of the heart characteristic adjusts fitness equipment's resistance power, if exercise intensity and rhythm of the heart are higher than the threshold value, then need reduce resistance power, if exercise intensity and rhythm of the heart are less than the threshold value, then need improve resistance power, in order to reach best exercise rhythm of the heart and best exercise intensity, make both more balanced, thereby reach best exercise state.
Furthermore, the operational amplifier circuit comprises an operational amplifier, a plurality of resistors and a power supply, wherein the power supply is electrically connected with the strain gauge and the operational amplifier respectively, the strain gauge is sequentially connected and connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the single chip microcomputer circuit.
Furthermore, the singlechip circuit comprises a singlechip and a program writing circuit electrically connected with the singlechip, the program writing circuit is used for writing a program into the singlechip, and the singlechip is respectively electrically connected with the operational amplifier circuit and the communication circuit. This setting can write in the good procedure of writing in through procedure write circuit, makes things convenient for the singlechip upgrading procedure, plays the effect of tempering better.
Furthermore, the strain gauges are sequentially connected to form a full-bridge stress detection part, so that a differential electric signal is output to the processing circuit through the full-bridge stress detection part according to the stress magnitude. This setting can detect the atress change more accurately to reach more accurate motion intensity detection effect.
Further, the vital sign sensor at least acquires heart rate parameters of the human body. The vital sign sensor can basically acquire the heart rate, and can also acquire parameters such as the weight, the blood oxygen, the blood pressure and the like of the sporter, and the resistance power of the fitness equipment is changed through comprehensive consideration. The vital sign sensors are independent, signals do not need to be processed by a processing circuit, and only the control end of the final fitness equipment needs to process data and exercise intensity data of the vital sign sensors in a unified mode.
Drawings
FIG. 1 is a first schematic view of the force-bearing structure applied to a pedal;
FIG. 2 is a second structural diagram of the stressed structure applied to a pedal of the present invention;
FIG. 3 is a first cross-sectional view of FIG. 2;
FIG. 4 is a second cross-sectional view of FIG. 2;
FIG. 5 is a schematic view of one embodiment of a strain gage;
fig. 6 is a schematic diagram of the processing circuitry of the present invention.
In the figure, 1, a pedal spindle; 2. a strain gauge; 3. a power source; 4. a PCB board; 5. a counterweight block; 6. a pedal upper cover; 7. a lower cover of the pedal; 8. a non-slip mat; 9. a pedal gravity cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
Example 1
The intelligent exercise intensity measurement and control system for the fitness equipment is applied to the fitness equipment and comprises a stress strain sensing device and a vital sign sensor.
The fitness equipment can be common elliptical machines, dynamic bicycles, flying bird training machines and the like, and is not limited to the fitness equipment disclosed in the application.
Specifically, the stress-strain sensing device comprises a stress structure arranged on a stress surface or a stress arm of the fitness equipment and a processing circuit used for processing and amplifying stress change signals of the stress structure, wherein the stress structure is used for acquiring the stress change signals generated under the stress action and outputting the stress change signals to the processing circuit.
The stress structure comprises a plurality of strain gauges 2, the strain gauges 2 are uniformly distributed on a stress surface or a stress arm of the fitness equipment, if the stress structure is arranged on an elliptical machine, the strain gauges 2 are arranged on pedals, and the strain gauges 2 can also be arranged on a seat, if the stress structure is arranged on a flying bird training machine or a rowing machine, the strain gauges 2 can be arranged on components such as handles, paddles and pedals, and can also be arranged on the seat. The aim is to obtain the change of the acting force of the exerciser on the force bearing surface or the force bearing arm of the fitness equipment when the exerciser exercises, because the acting force is different when the exerciser does not exercise.
Specifically, as shown in fig. 6, the processing circuit includes an operational amplifier circuit electrically connected to the strain gauge 2, a single chip microcomputer circuit electrically connected to the operational amplifier circuit and a communication circuit, the operational amplifier circuit is configured to amplify and input the stress variation signal output by the strain gauge 2 to the single chip microcomputer circuit, the single chip microcomputer circuit is configured to process the stress variation signal after being amplified and output the exercise intensity signal to the communication circuit, the communication circuit is configured to output the exercise intensity signal to the control terminal or the mobile terminal of the exercise device, the operational amplifier circuit includes an operational amplifier, a plurality of resistors and a power supply 3, the power supply 3 is electrically connected to the strain gauge 2 and the operational amplifier, the strain gauge 2 is sequentially connected to the input terminal of the operational amplifier, the output terminal of the operational amplifier is connected to the single chip microcomputer circuit, the operational amplifier circuit includes a single chip microcomputer and a program writing circuit electrically connected to the single chip microcomputer circuit, the program writing circuit is used for writing programs into the single chip microcomputer, the single chip microcomputer is respectively electrically connected with the operational amplifier circuit and the communication circuit, and the strain gauges 2 are sequentially connected to form a full-bridge stress detection portion, so that differential electric signals are output to the processing circuit through the full-bridge stress detection portion according to stress. The operational amplifier circuit amplifies signals output by the strain gauge 2, the single chip microcomputer circuit is easier to process, the single chip microcomputer circuit processes the signals according to a built-in program (analyzes the signals to generate exercise intensity signals), the signals can be sent to a control end or a mobile terminal of the fitness equipment through the communication circuit, and therefore the resistance power of the fitness equipment can be conveniently adjusted by combining vital signs such as heart rate characteristics of a sporter, if the exercise intensity and the heart rate are higher than a threshold value, the resistance power needs to be reduced, if the exercise intensity and the heart rate are lower than the threshold value, the resistance power needs to be improved, the best exercise heart rate and the best exercise intensity are achieved, the two are more balanced, and the best exercise state is achieved.
In the present embodiment, as shown in fig. 6, R1, R2, R3, and R4 are strain gauges 2, and bridge connection constitutes full-bridge stress detection, and one end of R1 and one end of R2 are connected to one end of a resistor R5; the other end of the R2 is connected with one end of the R3 and then connected with a first power supply 35V; the other end of the R3 is connected with one end of the R4 and then connected with one end of the resistor R6; the other end of R1 is connected with the other end of R4 and then connected with the Ground (GND). Wherein R5 is the inverting signal input resistor of the operational amplifier, R6 is the non-inverting signal input resistor of the operational amplifier, R7 is the degeneration resistor, the gain of the operational amplifier is determined by the ratio of R5 and R7, and it is usually assumed that R5 is R6, R7 is R8, and R9 is the output resistor.
The other end of the resistor R5 is connected with one end of a resistor R7 and then connected with the inverting end of the operational amplifier U1, the other end of the resistor R6 is connected with one end of a resistor R8 and then connected with the non-inverting end of the operational amplifier U1, and the other end of the resistor R7 is connected with the output end of the operational amplifier U1; the other end of the resistor R8 is connected with the Ground (GND); the output end of the operational amplifier U1 is connected with one end of a resistor R9, and the other end of the resistor R9 is connected with the input end (pin 19) of the singlechip (U2, STM8S003F 3).
The singlechip is provided with a program writing circuit and is connected with a J1 four-core socket, a J1 four-core socket 1 pin is connected with a second power supply 35V, a J1 four-core socket 2 pin is connected with a SWIM port (18 pin) of the singlechip, a J1 four-core socket 3 pin is connected with Ground (GND), a J1 four-core socket 4 pin is connected with an NRST port (4 pin) of the singlechip, a J1 four-core socket 4 pin is connected with one end of a resistor R10, the other end of the resistor R10 is connected with a third power supply 35V, a J1 four-core socket 4 pin is connected with one end of a diode D1, the other end of the diode D1 is connected with the third power supply 35V, a J1 four-core socket 4 pin is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with Ground (GND). Wherein, J1 four-core socket is used for singlechip program to write into, belongs to prior art.
The single chip microcomputer TX (pin 2) and RX (pin 3) are connected with a resistor R11 and a resistor R12 in series, serial signals are output to the Bluetooth module, wireless signals are output by the Bluetooth module, and the wireless signals are received by the mobile phone APP to be subjected to related application and analysis processing. Of course, the WIFI module may also be used, which is not limited herein.
Therefore, the full-bridge stress detection is formed by four strains of R1, R2, R3 and R4, for example, when a pedal is stressed, the strain full-bridge outputs a differential electric signal according to the magnitude of the applied gravity, the differential electric signal is input into the input end (19 feet) of the single chip microcomputer through a resistor R9 after being differentially amplified by an operational amplifier, the single chip microcomputer performs analog-to-digital conversion, a digital signal in direct proportion to the applied gravity is output, and the digital signal is sent to a mobile phone APP through a Bluetooth module.
Specifically, the vital signs sensor is used for acquiring human vital signs so as to regulate the resistance power of the fitness equipment by combining signals output by the processing circuit. The vital sign sensor at least acquires human heart rate parameters, can be common intelligent bracelet, intelligent wrist-watch etc. also can be independent heart rate detection sensor, blood oxygen sensor etc.. The vital sign sensor can basically acquire the heart rate, and can also acquire parameters such as the weight, the blood oxygen, the blood pressure and the like of the sporter, and the resistance power of the fitness equipment is changed through comprehensive consideration. The specific acquisition method can refer to an AI heart rate exercise system of the prior patent CN 202010386083.8.
Therefore, only the vital sign parameters such as the heart rate and the like and the exercise intensity signals are weighted to calculate to obtain the current exercise score, or the threshold values of the vital sign parameters and the exercise intensity signals are compared respectively, so that the corresponding resistance power is adjusted according to the range of each threshold value, a complete exercise intensity intelligent measurement and control system of the fitness equipment is formed, and the optimal exercise effect can be achieved.
In this embodiment, if the heart rate of the exerciser does not reach the lowest exercise intensity, for example, the heart rate is always below 120 times/minute (medium intensity) during exercise, which indicates that the exercise intensity is not large enough, the system will automatically increase the resistance power to increase the exercise intensity of the exerciser, and after the exercise intensity is increased by the exerciser, the heart rate will be increased, and when the set exercise intensity (based on the feedback of the exercise intensity signal) is reached, for example, the heart rate approaches 160 times/minute (medium intensity), the system will stop increasing the resistance power; whereas for example a exerciser's heart rate exceeds 160 beats/minute (moderate intensity), the system will reduce the resistance power and the intensity of the exercise will be reduced so as not to cause the exercise to be too intense. The exercise intensity is set for can combine sporter's age, fitness current situation and the exercise data of motion in the past, carries out intelligence and sets for, can combine the rate that the rhythm of heart rises or descends in accommodation process, carries out the speed that intelligence increases or reduces to let the motion take exercise have a gradual change process, reach the best motion and take exercise the effect.
Example 2
As shown in fig. 1-5, based on embodiment 1, when this embodiment is applied to the pedaling of an exercise apparatus, the force-bearing structure includes a pedal spindle 1 connected to the exercise apparatus, a pedal housing rotatably connected to the pedal spindle 1, and a plurality of strain gauges 2 disposed below the inner wall of the top of the pedal housing, and each strain gauge 2 is electrically connected to the processing circuit. When the pedal body-building apparatus is used, the strain gauge 2 is arranged on the stress surface in the pedal, so that stress change can be conveniently acquired.
Specifically, the pedal shell is divided into an upper pedal cover 6 and a lower pedal cover 7 detachably connected with the upper pedal cover 6, a cavity for installing the strain gauge 2 is formed in the upper pedal cover 6, and the lower pedal cover 7 is rotatably connected with the pedal spindle 1. The pedal upper cover 6 is also provided with a pedal gravity cover 9, and the pedal gravity cover 9 is abutted to the upper top of the strain gauge 2.
In this embodiment, not only the strain gauge 2, but also the power supply 3 and the PCB 4 are installed in the cavity, the PCB 4 is provided with a processing circuit and a communication module, and the lower cover 7 of the pedal can also be provided with a counterweight 5 and the like.
In this embodiment, a non-slip mat 8 can be disposed on the top of the pedal cover 6, so as to achieve a good non-slip effect.
Example 3
Based on embodiment 1 or embodiment 2, this embodiment discloses an application example applied to a spinning. With the atress strain sensing device of this application set up in the pedal of spinning, wear on the sportsman's body the sportsman with the vital sign sensor setting on the handle of spinning or as wearable equipment, damping device (magnetic powder controller etc.) that so can control spinning realizes adjusting.
When the spinning moved and taken exercise, four foil gages 2 all around in pedal inside setting, when pedal atress, 2 output atress change signal of foil gage, through operational amplifier enlargies, the input singlechip carries out data processing, and singlechip output motion intensity signal sends to cell-phone APP via bluetooth module. The strain gauge 2 is used for detecting the exercise intensity and measuring and controlling functions, after exercise intensity signals exist, the resistance power of the spinning is intelligently adjusted by the aid of the single chip microcomputer circuit or the control end of the spinning after the signals are combined with heart rate parameters of a sporter, and accordingly the best exercise effect is achieved, and by means of the multifunctional digital resistance device of CN202210028362.6 and application thereof and the AI heart rate exercise system of CN202010386083.8, the resistance power of the spinning can be better controlled, and the best exercise state is achieved.
Example 4
Based on embodiment 1 or embodiment 2, this embodiment discloses an application example applied to an elliptical machine. Similar with embodiment 3's spinning, when oval machine moves and takes exercise, four foil gages 2 all around in pedal inside setting, when pedal atress, 2 output atress change signal of foil gage, enlargies through operational amplifier, and the input singlechip carries out data processing, and singlechip output motion intensity signal sends to cell-phone APP via bluetooth module. The exercise intensity measurement and control function is detected by the strain gauge 2, after an exercise intensity signal is generated, the resistance power of the elliptical machine is intelligently adjusted by combining heart rate parameters of a sporter, so that the optimal exercise effect is achieved, and the resistance power of the elliptical machine can be better controlled by combining a CN202210028362.6 multipurpose digital resistance device and application thereof and a CN202010386083.8 AI heart rate exercise system, so that the optimal exercise state is achieved.
Example 5
Based on embodiment 1 or embodiment 2, the present embodiment discloses an application example applied to a mountain biking. Similar with embodiment 3's spinning, when carrying out the motion and taking exercise, four foil gages 2 all around are set up to pedal inside, and when pedal atress, 2 output atress change signal of foil gage, through operational amplifier enlargies, the input singlechip carries out data processing, and singlechip output motion intensity signal sends to cell-phone APP via bluetooth module. The exercise intensity measurement and control function detected by the strain gauge 2 is realized, after an exercise intensity signal exists, the gear of the mountain cross-country bicycle is intelligently adjusted by combining heart rate parameters of a sporter, the best exercise effect is achieved, the gear of the intelligent adjustment mountain cross-country bicycle can be better controlled, and the best exercise state is realized.
Example 6
Based on embodiment 1 or embodiment 2, this embodiment discloses an application example applied to a bird integrated training device. Two foil gauges 2 about setting up on the arm of force, when the arm of force atress, 2 output atress change signal of foil gauge, through operational amplifier enlargies, the input singlechip carries out data processing, and singlechip output motion intensity signal sends to cell-phone APP via bluetooth module. The measuring and controlling function of detecting the exercise intensity by the strain gauge 2 is realized, after an exercise intensity signal is provided, the resistance power of the comprehensive bird trainer is intelligently adjusted by combining the heart rate parameter of a sporter, so that the optimal exercise effect is achieved, and the resistance power of the comprehensive bird trainer can be better controlled by combining the CN202210028362.6 multi-purpose digital resistance device and the application thereof and the CN202010386083.8 AI heart rate exercise system, so that the optimal exercise state is realized.
The present invention is not described in detail in the prior art, and therefore, the present invention is not described in detail.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Although the terms pedal spindle 1, strain gauge 2, power source 3, PCB board 4, weight 5, pedal upper cover 6, pedal lower cover 7, non-slip mat 8, pedal gravity cover 9, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present application, fall within the protection scope of the present invention.
Claims (10)
1. An intelligent measurement and control system for exercise intensity of fitness equipment is applied to the fitness equipment and is characterized by comprising a stress strain sensing device and a vital sign sensor;
the stress-strain sensing device comprises a stress structure arranged on a stress surface or a stress arm of the fitness equipment and a processing circuit used for processing and amplifying stress change signals of the stress structure, and the stress structure is used for acquiring stress change signals generated under the action of stress and outputting the stress change signals to the processing circuit;
the vital sign sensor is used for acquiring human vital signs so as to regulate the resistance power of the fitness equipment by combining signals output by the processing circuit.
2. The system according to claim 1, wherein the force-bearing structure comprises a plurality of strain gauges, and the strain gauges are uniformly distributed on the force-bearing surface or the force-bearing arm of the exercise machine.
3. The system according to claim 1, wherein when applied to the pedaling of a fitness apparatus, the force-bearing structure comprises a pedal spindle connected to the fitness apparatus, a pedal housing rotatably connected to the pedal spindle, and a plurality of strain gauges disposed below an inner wall of a top of the pedal housing, each strain gauge being electrically connected to the processing circuit.
4. An intelligent exercise intensity measurement and control system for a fitness instrument as claimed in claim 3, wherein the pedal shell comprises an upper pedal cover and a lower pedal cover detachably connected with the upper pedal cover, the upper pedal cover is provided with a cavity for mounting the strain gauge, and the lower pedal cover is rotatably connected with the pedal spindle.
5. The system according to claim 4, wherein a weight is provided in the lower cover of the pedal.
6. An intelligent exercise intensity measurement and control system for a fitness instrument as claimed in claim 2, wherein the processing circuit comprises an operational amplifier circuit electrically connected to the strain gauge, a single chip microcomputer circuit electrically connected to the operational amplifier circuit and a communication circuit, the operational amplifier circuit is used for operational amplification of a stress change signal output by the strain gauge and inputting the stress change signal to the single chip microcomputer circuit, the single chip microcomputer circuit is used for processing the stress change signal after operational amplification and outputting an exercise intensity signal to the communication circuit, and the communication circuit is used for outputting the exercise intensity signal to a control terminal or a mobile terminal of the fitness instrument.
7. An intelligent exercise intensity measurement and control system for fitness equipment according to claim 6, wherein the operational amplifier circuit comprises an operational amplifier, a plurality of resistors and a power supply, the power supply is electrically connected with the strain gauge and the operational amplifier respectively, the strain gauge is sequentially connected and connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the single chip microcomputer circuit.
8. An intelligent exercise intensity measurement and control system for a fitness instrument as claimed in claim 6, wherein the single chip microcomputer circuit comprises a single chip microcomputer and a program writing circuit electrically connected to the single chip microcomputer, the program writing circuit is used for writing a program into the single chip microcomputer, and the single chip microcomputer is electrically connected to the operational amplifier circuit and the communication circuit respectively.
9. The system according to claim 2, wherein the strain gauges are sequentially connected to form a full-bridge stress detection portion, so as to output a differential electrical signal to the processing circuit through the full-bridge stress detection portion according to the magnitude of a force.
10. An intelligent exercise intensity measurement and control system according to any one of claims 1 to 9, wherein the vital sign sensor obtains at least heart rate parameters of a human body.
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