Elliptical machine

Abstract

The utility model discloses an elliptical machine, which relates to the field of fitness equipment, and is characterized in that a position detection module is respectively connected with a first lifting motor and a second lifting motor to determine the position states of the two lifting motors in real time; according to the detection result of the position detection module, the two pedals of the elliptical machine can be controlled through the first power supply control module and the second power supply control module respectively; the position detection module, the controller, the first power supply control module and the second power supply control module are mutually connected and matched to realize the control process of a first lifting motor and a second lifting motor, so that the control of the working process of the elliptical machine is realized; the two sets of lifting motors are independently installed on the left side and the right side of the elliptical machine, the two pedals do not need to be connected through a middle mechanical structure any more, the strides of the two pedals on the left side and the right side can be adjusted at the same time, the position states of the two pedals are determined in real time through the position detection module, and therefore the two pedals can be reset to the same initial position in time; and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to an elliptical machine. Background Art

[0002] Most of the elliptical machines commonly found in the market currently have fixed movement stride and cannot adjust the movement stride. In order to further improve the user experience, a lifting motor can be installed at the pedal connecting shaft of the elliptical machine. The movement stride can be adjusted by extending and retracting the lifting motor to meet the different movement stride requirements of users of different heights, thereby realizing an elliptical machine with adjustable stride.

[0003] In the prior art, an elliptical machine with a stride adjustment function uses a lifting motor, which is connected to the two pedals of the elliptical machine through a mechanical structure. The controller inside the elliptical machine can determine different control strategies for the lifting motor according to the position of the lifting motor and the user's operation instructions, thereby driving the pedals to move, and controlling the stride of the left and right pedals at the same time through the action of the lifting motor. However, this method requires a mechanical connection structure to be set between the two pedals of the elliptical machine, which is complex in structure, affects the user experience to a certain extent, and is not conducive to the widespread application of elliptical machines. Utility Model Content

[0004] The purpose of the utility model is to provide an elliptical machine, which uses two sets of lifting motors and is installed separately on the left and right sides of the elliptical machine. The two pedals no longer need to be connected by an intermediate mechanical structure, and the stride of the two pedals on the left and right sides can be adjusted at the same time. The position detection module is used to determine the position status of the two pedals in real time, so as to reset the two pedals to the same initial position in time, eliminate the errors generated by the two sets of lifting motors during use, and improve the user experience.

[0005] In order to solve the above technical problems, the utility model provides an elliptical machine, comprising:

[0006] a first lifting motor connected to the first pedal of the elliptical machine;

[0007] a second lifting motor connected to the second pedal of the elliptical machine;

[0008] A position detection module, whose input ends are respectively connected to the first lifting motor and the second lifting motor, and is used to detect the position state of the first lifting motor and the position state of the second lifting motor;

[0009] A controller, an input end of which is connected to an output end of the position detection module;

[0010] A first power control module, the input end of which is connected to the first output end of the controller, the first output end of which is connected to the positive power end of the first lifting motor, and the second output end of which is connected to the negative power end of the first lifting motor, and is used to control the first lifting motor based on a control signal output by the controller corresponding to the position state of the first lifting motor;

[0011] A second power supply control module, whose input end is connected to the second output end of the controller, whose first output end is connected to the positive power supply end of the second lifting motor, and whose second output end is connected to the negative power supply end of the second lifting motor, is used to control the second lifting motor based on a control signal output by the controller corresponding to the position state of the second lifting motor.

[0012] Optionally, the position detection module includes a first position detection circuit and a second position detection circuit, the input end of the first position detection circuit is connected to the first lifting motor, the input end of the second position detection circuit is connected to the second lifting motor, and the output end of the first position detection circuit and the output end of the second position detection circuit are both connected to the input end of the controller.

[0013] Optionally, the first position detection circuit and the second position detection circuit both include a position sensor, a first resistor, a first capacitor, a second resistor, a signal processing module, a third resistor and a second capacitor, the input end of the position sensor is connected to the corresponding first lifting motor or the second lifting motor, the first end of the first resistor is connected to the first power supply, the second end is respectively connected to the first end of the first capacitor and the positive end of the power supply of the position sensor, the second end of the first capacitor is grounded, the first end of the second resistor is grounded, the second end is connected to the negative end of the power supply of the position sensor, the output end of the position sensor is connected to the input end of the signal processing module, the output end of the signal processing module is connected to the first end of the third resistor, the second end of the third resistor is respectively connected to the first end of the second capacitor and the input end of the controller, and the second end of the second capacitor is grounded;

[0014] The signal processing module is used to convert the output signal of the position sensor into a digital signal.

[0015] Optionally, the signal processing module includes an analog-to-digital converter, a third capacitor, a fourth resistor, a fifth resistor and a first voltage stabilizing module, the output end of the position sensor is respectively connected to the positive electrode of the first voltage stabilizing module, the first end of the fourth resistor and the first end of the fifth resistor, the negative electrode of the first voltage stabilizing module is grounded and connected to the second end of the fourth resistor, the second end of the fifth resistor is respectively connected to the first end of the third capacitor and the input end of the analog-to-digital converter, the second end of the third capacitor is grounded, and the output end of the analog-to-digital converter is connected to the first end of the third resistor.

[0016] Optionally, an electronic meter board is further included, and a communication connection is established between the electronic meter board and the controller;

[0017] The electronic dashboard is used to display the position status of the first lifting motor and / or the second lifting motor through a display screen, and transmit user operation instructions.

[0018] Optionally, the first power control module and the second power control module both include a motor direction control circuit and a motor lifting control circuit, the input end of the motor direction control circuit is connected to the first output end of the controller or the second output end of the controller, the input end of the motor lifting control circuit is connected to the first output end of the controller or the second output end of the controller, and the output end of the motor direction control circuit is respectively connected to the output end of the motor lifting control circuit, the positive power end of the corresponding first lifting motor or the second lifting motor, and the negative power end of the corresponding first lifting motor or the second lifting motor;

[0019] The motor direction control circuit is used to adjust the motor direction of the corresponding first lifting motor or the corresponding second lifting motor based on the motor direction control signal output by the controller, thereby controlling the movement direction of the corresponding first pedal or the corresponding second pedal;

[0020] The motor lifting control circuit regulates the motor starting condition of the corresponding first lifting motor or the second lifting motor based on the motor starting control signal output by the controller, thereby controlling the starting condition of the corresponding first pedal or the second pedal.

[0021] Optionally, the motor direction control circuit includes a sixth resistor, a first control switch, a seventh resistor, a second control switch and a switching switch, the first end of the sixth resistor serves as the input end of the motor direction control circuit, the second end is connected to the control end of the first control switch, the first end of the first control switch is connected to the first power supply, the second end is respectively connected to the first end of the seventh resistor and the control end of the second control switch, the second end of the seventh resistor is grounded, the first end of the second control switch is grounded, the second end is connected to the first control end of the switching switch, the second control end of the switching switch is connected to the second power supply, the first fixed end of the switching switch is connected to the second power supply, the second fixed end is connected to the output end of the motor lifting control circuit, the first switching end is respectively connected to the positive power end of the corresponding first lifting motor or the second lifting motor and the negative power end of the corresponding first lifting motor or the second lifting motor, and the second switching end is respectively connected to the negative power end of the corresponding first lifting motor or the second lifting motor and the positive power end of the corresponding first lifting motor or the second lifting motor.

[0022] Optionally, the motor direction control circuit also includes a fourth capacitor, an eighth resistor, a fifth capacitor and a second voltage stabilizing module, the first end of the fourth capacitor is respectively connected to the second end of the first control switch, the first end of the seventh resistor and the first end of the eighth resistor, and the second end is grounded, the second end of the eighth resistor is respectively connected to the first end of the fifth capacitor, the positive electrode of the second voltage stabilizing module and the control end of the second control switch, the second end of the fifth capacitor is grounded and connected to the negative electrode of the second voltage stabilizing module.

[0023] Optionally, the motor lifting control circuit includes a ninth resistor, a sixth capacitor, a third control switch, a tenth resistor, an eleventh resistor, a third voltage stabilizing module and a fourth control switch. The first end of the ninth resistor is connected to the first power supply, and the second end is respectively connected to the first end of the sixth capacitor and the control end of the third control switch, and serves as the input end of the motor lifting control circuit. The second end of the sixth capacitor is grounded, the first end of the third control switch is connected to the third power supply, and the second end is respectively connected to the first end of the tenth resistor, the first end of the eleventh resistor, the positive electrode of the third voltage stabilizing module and the control end of the fourth control switch. The second end of the tenth resistor is grounded, the second end of the eleventh resistor is grounded, and is respectively connected to the negative electrode of the third voltage stabilizing module and the first end of the fourth control switch. The second end of the fourth control switch serves as the output end of the motor lifting control circuit.

[0024] Optionally, the motor lifting control circuit also includes a unidirectional conduction module, a twelfth resistor, a thirteenth resistor, a fourteenth resistor and a seventh capacitor. The positive pole of the unidirectional conduction module is respectively connected to the second end of the ninth resistor and the first end of the sixth capacitor, and the negative pole is connected to the first end of the twelfth resistor. The second end of the twelfth resistor is connected to the control end of the third control switch. The first end of the thirteenth resistor is respectively connected to the second end of the third control switch and the first end of the tenth resistor, and the second end is respectively connected to the first end of the seventh capacitor and the first end of the fourteenth resistor. The second end of the fourteenth resistor is respectively connected to the first end of the eleventh resistor, the positive pole of the third voltage stabilizing module and the control end of the fourth control switch, and the second end of the seventh capacitor is grounded.

[0025] Optionally, the motor lifting control circuit also includes a fifteenth resistor and an eighth capacitor, the first end of the fifteenth resistor is connected to the second end of the fourth control switch, the second end is connected to the first end of the eighth capacitor, and the second end of the eighth capacitor is connected to the first end of the fourth control switch.

[0026] The utility model provides an elliptical machine, comprising a first lifting motor connected to a first pedal, a second lifting motor connected to a second pedal, a position detection module, a controller, a first power control module and a second power control module. The position detection module is respectively connected to the first lifting motor and the second lifting motor to determine the position status of the two lifting motors in real time. The controller controls the two pedals of the elliptical machine respectively through the first power control module and the second power control module according to the position detection result input by the position detection module. The position detection module, the controller, the first power control module and the second power control module are interconnected and cooperated to realize the control process of the working process of the first lifting motor and the second lifting motor, thereby realizing the control of the working process of the elliptical machine. Two groups of lifting motors are used and are separately installed on the left and right sides of the elliptical machine. The two pedals do not need to be connected through an intermediate mechanical structure, and the stride of the two pedals on the left and right sides can be adjusted at the same time. The position detection module is used to determine the position status of the two pedals in real time, so that the two pedals can be reset to the same initial position in time, the errors generated by the two groups of lifting motors during use are eliminated, and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1A schematic diagram of the structure of an elliptical machine provided by the utility model;

[0029] Figure 2 A schematic diagram of the structure of a controller provided by the utility model;

[0030] Figure 3 A schematic diagram of the structure of a position detection circuit provided by the utility model;

[0031] Figure 4 A schematic diagram of the structure of an elliptical machine control system provided by the utility model;

[0032] Figure 5 The present invention provides a schematic structural diagram of a power supply control module.

[0033] The accompanying drawings in the figure are marked as:

[0034] 1 is the first pedal of the elliptical machine, 2 is the second pedal of the elliptical machine, 3 is the first lifting motor, 4 is the second lifting motor, 5 is the position detection module, 6 is the controller, 7 is the first power control module, 8 is the second power control module, 9 is the signal processing module, 10 is the electronic board, GND represents grounding, U1 is the position sensor, U2 is the analog-to-digital converter, R1 is the first resistor, R2 is the second resistor, R3 is the third resistor, R4 is the fourth resistor, R5 is the fifth resistor, C1 is the first capacitor, C2 is the second capacitor, C3 is the third capacitor, D1 is the first voltage stabilization module block, R6 is the sixth resistor, R7 is the seventh resistor, R8 is the eighth resistor, R9 is the ninth resistor, R10 is the tenth resistor, R11 is the eleventh resistor, R12 is the twelfth resistor, R13 is the thirteenth resistor, R14 is the fourteenth resistor, R15 is the fifteenth resistor, C4 is the fourth capacitor, C5 is the fifth capacitor, C6 is the sixth capacitor, C7 is the seventh capacitor, C8 is the eighth capacitor, Q1 is the first control switch, Q2 is the second control switch, Q3 is the third control switch, Q4 is the fourth control switch, D2 is the second voltage stabilizing module, and D3 is the third voltage stabilizing module , D4 is a unidirectional conduction module, D5 is a diode, D6 is a diode, red represents the positive power line of the lifting motor, black represents the negative power line of the lifting motor, K is a switching switch, 11 is the first fixed end of the switching switch, 12 and 13 are two switching ends corresponding to the first switching end of the switching switch, 14 is the second fixed end of the switching switch, 15 and 16 are two switching ends corresponding to the second switching end of the switching switch, the first position signal is the output signal of the first position detection circuit corresponding to the first lifting motor, the second position signal is the output signal of the second position detection circuit corresponding to the second lifting motor, INC_ENABLE1 is the motor start control signal of the first lifting motor, INC_DIRETTON1 is the motor direction control signal of the first lifting motor, INC_ENABLE2 is the motor start control signal of the second lifting motor, INC_DIRETTON2 is the motor direction control signal of the second lifting motor, INC_ENABLE is the motor start control signal of the first lifting motor or the second lifting motor, INC_DIRETTON is the motor direction control signal of the first lifting motor or the second lifting motor. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide an elliptical machine, which uses two sets of lifting motors and is installed separately on the left and right sides of the elliptical machine. The two pedals no longer need to be connected by an intermediate mechanical structure, and the stride of the two pedals on the left and right sides can be adjusted at the same time. The position detection module is used to determine the position status of the two pedals in real time, so as to reset the two pedals to the same initial position in time, eliminate the errors generated by the two sets of lifting motors during use, and improve the user experience.

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Please refer to Figure 1 , Figure 1 The present invention provides a schematic diagram of an elliptical machine; in order to solve the above technical problems, the present invention provides an elliptical machine, comprising:

[0038] A first lifting motor 3 connected to the first pedal 1 of the elliptical machine;

[0039] A second lifting motor 4 connected to the second pedal 2 of the elliptical machine;

[0040] A position detection module 5, whose input ends are respectively connected to the first lifting motor 3 and the second lifting motor 4, and is used to detect the position state of the first lifting motor 3 and the position state of the second lifting motor 4;

[0041] A controller 6, whose input end is connected to the output end of the position detection module 5;

[0042] A first power control module 7, the input end of which is connected to the first output end of the controller 6, the first output end of which is connected to the positive power end of the first lifting motor 3, and the second output end of which is connected to the negative power end of the first lifting motor 3, and is used to control the first lifting motor 3 based on a control signal corresponding to the position state of the first lifting motor 3 output by the controller 6;

[0043] The second power supply control module 8 has an input end connected to the second output end of the controller 6, a first output end connected to the positive power end of the second lifting motor 4, and a second output end connected to the negative power end of the second lifting motor 4, and is used to control the second lifting motor 4 based on a control signal output by the controller 6 corresponding to the position state of the second lifting motor 4.

[0044] Specifically, the position detection module 5 can detect the position status of the first lifting motor 3 and the second lifting motor 4 in real time, and output it to the controller 6. The controller 6 will output a control signal according to the received position status of the two lifting motors and the user's operation instructions, and control the operation of the two lifting motors through the first power control module 7 and the second power control module 8 respectively, thereby controlling the lifting and lowering of the first pedal 1 and the second pedal 2, and realizing the adjustment process of the stroke and the corresponding stride of the elliptical machine, by using two lifting motors to simultaneously adjust the stride of the two pedals on the left and right sides.

[0045] At the same time, considering that the two lifting motors will inevitably have mechanical errors and electrical errors during production and installation, it cannot be guaranteed that the operating speed and stroke of the two lifting motors are completely consistent during use, and asynchronism may occur. Each time the stroke is adjusted, the telescopic stroke of the two lifting motors will have partial errors. There may be a situation where one lifting motor reaches the set value and the other lifting motor has a slight deviation. With more times of use, the errors will accumulate more and more, resulting in different actual strokes of the two pedals on the left and right sides, and the stride will be long and short during exercise, affecting the user experience. Therefore, the present application can also use the position detection module 5 to realize the reset operation of the two lifting motors. After the elliptical machine is turned on or reset, the lifting motor is first adjusted to the initial position to eliminate the errors generated by the two sets of lifting motors during use to achieve an ideal user experience. Each time the elliptical machine is turned on and the exercise program is reset, the position detection module 5 feeds back the position status of the two lifting motors and detects the current position of the two lifting motors. If they are not in the preset initial position, the controller 6 controls the lifting motor that is not in the preset initial position to start through the corresponding power control module, and first adjusts the lifting motor that is not in the preset initial position to the initial position to ensure that the two lifting motors are used from the zero position, eliminating the accumulated errors generated during the previous use process; the reset operation can be performed each time the machine is turned on or the exercise program is reset to ensure that the two lifting motors start from the zero position after each exercise program starts, and no errors are accumulated.

[0046] The present application provides a dual-group lifting motor synchronous control system, which is applied to an adjustable stride elliptical machine. The entire control scheme is simple and easy to implement, has a good use effect, and the control system is stable. The position detection module 5, the controller 6, the first power supply control module 7 and the second power supply control module 8 cooperate with each other to realize the stride adjustment and reset operation of the elliptical machine, thereby improving the flexibility of the elliptical machine and ensuring the accurate and reliable working process of the elliptical machine.

[0047] It should be noted that the present application does not make any special restrictions on the specific types and implementation methods of the first pedal 1 and the second pedal 2 of the elliptical machine. The elliptical machine may also include other components such as support rods, which the present application does not make any special restrictions on. The present application does not make any special restrictions on the specific models and implementation methods of the first lifting motor 3 and the second lifting motor 4, which are usually implemented using the same type of lifting motors.

[0048] It is not difficult to understand that the present application does not make any special restrictions on the specific types and implementation methods of the position detection module 5, the controller 6, the first power control module 7 and the second power control module 8. The position detection module 5 can be implemented by detection devices such as sensors; the first power control module 7 and the second power control module 8 can adjust the connection relationship between the power supply and the lifting motor through switching devices, thereby realizing the control process of the corresponding lifting motor; the controller 6 can be implemented by a processor such as a single-chip microcomputer. In addition to the main control processor, related circuits and components such as signal acquisition processing can also be added. The single-chip microcomputer calculates and judges the signal data corresponding to the position state of the first lifting motor 3 and the position state of the second lifting motor 4 transmitted by the position detection module 5, determines the position of each lifting motor, and issues corresponding control instructions to the corresponding first power control module 7 or the second power control module 8 to control the start, stop, forward and reverse operations of the corresponding lifting motor.

[0049] As a specific embodiment, please refer to Figure 2 , Figure 2A schematic diagram of the structure of a controller provided by the utility model; the pin P1.0 of the single-chip microcomputer is connected to the output end of the position detection module 5, and receives the detection result of the position detection module 5 on the position state of the first lifting motor 3, that is, the first position signal; the pin P1.1 of the single-chip microcomputer is connected to the output end of the position detection module 5, and receives the detection result of the position detection module 5 on the position state of the second lifting motor 4, that is, the second position signal; the pin P2.0 of the single-chip microcomputer is connected to the first power control module 7, and outputs the lifting control signal for the first lifting motor 3 after processing and calculation, that is, the motor start control signal INC_ENABLE1 of the first lifting motor 3 ... the pin P2.0 of the single-chip microcomputer is connected to the first power control module 7, and the pin P 2.2 is connected to the second power control module 8, and outputs the lifting control signal for the second lifting motor 4 after processing and calculation, that is, the motor start control signal INC_ENABLE2 of the second lifting motor 4. The pin P2.1 of the single-chip microcomputer is connected to the first power control module 7, and outputs the lifting direction signal for the first lifting motor 3 after processing and calculation, that is, the motor direction control signal INC_DIRETTON1 of the first lifting motor 3. The pin P2.3 of the single-chip microcomputer is connected to the second power control module 8, and outputs the lifting direction signal for the second lifting motor 4 after processing and calculation, that is, the motor direction control signal INC_DIRETTON2 of the second lifting motor 4. The controller generates a lifting control signal for the first lifting motor 3, a lifting control signal for the second lifting motor 4, a lifting direction signal for the first lifting motor 3, and a lifting direction signal for the second lifting motor 4 based on the position status of the first lifting motor 3 and the second lifting motor 4 in the same way as the control strategy in the prior art. The controller determines the specific action process required by the two lifting motors by comparing the difference between the target position corresponding to the user operation instruction or the reset instruction and the current position of the lifting motor, thereby outputting corresponding control signals to control the first power control module and the second power control module.

[0050] The utility model provides an elliptical machine, comprising a first lifting motor 3 connected to a first pedal 1, a second lifting motor 4 connected to a second pedal 2, a position detection module 5, a controller 6, a first power control module 7 and a second power control module 8. The position detection module 5 is respectively connected to the first lifting motor 3 and the second lifting motor 4 to determine the position states of the two lifting motors in real time. The controller 6 controls the two pedals of the elliptical machine respectively through the first power control module 7 and the second power control module 8 according to the position detection result of the position detection module 5 inputted. The position detection module 5, the controller 6, the first power control module 7 and the second power control module 8 are mutually connected and cooperated to realize the control process of the working process of the first lifting motor 3 and the second lifting motor 4, thereby realizing the control of the working process of the elliptical machine. Two sets of lifting motors are used and are separately installed on the left and right sides of the elliptical machine. The two pedals do not need to be connected through an intermediate mechanical structure, and the stride of the two pedals on the left and right sides can be adjusted at the same time. The position detection module 5 is used to determine the position states of the two pedals in real time, so that the two pedals can be reset to the same initial position in time, the errors generated by the two sets of lifting motors during use are eliminated, and the user experience is improved.

[0051] Based on the above embodiments:

[0052] Please refer to Figure 3 , Figure 3 A structural schematic diagram of a position detection circuit provided for the utility model; as an optional embodiment, the position detection module 5 includes a first position detection circuit and a second position detection circuit, the input end of the first position detection circuit is connected to the first lifting motor 3, the input end of the second position detection circuit is connected to the second lifting motor 4, and the output end of the first position detection circuit and the output end of the second position detection circuit are both connected to the input end of the controller 6.

[0053] As an optional embodiment, the first position detection circuit and the second position detection circuit both include a position sensor U1, a first resistor R1, a first capacitor C1, a second resistor R2, a signal processing module 9, a third resistor R3 and a second capacitor C2, the input end of the position sensor U1 is connected to the corresponding first lifting motor 3 or the second lifting motor 4, the first end of the first resistor R1 is connected to the first power supply, the second end is respectively connected to the first end of the first capacitor C1 and the positive end of the power supply of the position sensor U1, the second end of the first capacitor C1 is grounded, the first end of the second resistor R2 is grounded, the second end is connected to the negative end of the power supply of the position sensor U1, the output end of the position sensor U1 is connected to the input end of the signal processing module 9, the output end of the signal processing module 9 is connected to the first end of the third resistor R3, the second end of the third resistor R3 is respectively connected to the first end of the second capacitor C2 and the input end of the controller 6, and the second end of the second capacitor C2 is grounded;

[0054] The signal processing module 9 is used to convert the output signal of the position sensor U1 into a digital signal.

[0055] Considering that the working processes of the first lifting motor 3 and the second lifting motor 4 are independent of each other, an independent first position detection circuit for detecting the current position of the first lifting motor 3 and a second position detection circuit for detecting the current position of the second lifting motor 4 can be set, and the circuit structure of the first position detection circuit and the second position detection circuit can be implemented using the position detection circuit with the same working principle and the same circuit structure. The position detection module 5 is the position feedback and detection part of the lifting motor, including circuits and components such as A / D sampling and signal conversion, which can detect the current position of the corresponding lifting motor and transmit the position signal data to the controller 6.

[0056] It is not difficult to understand that for any one of the first position detection circuit and the second position detection circuit, the position sensor U1 can be used to realize the detection process of the position state of the corresponding lifting motor. Therefore, the position detection circuit includes the position sensor U1, the first resistor R1, the first capacitor C1, the second resistor R2, the signal processing module 9, the third resistor R3 and the second capacitor C2. The first resistor R1 and the first capacitor C1 are arranged between the first power supply and the positive power supply terminal of the position sensor U1. The first resistor R1 and the first capacitor C1 constitute an RC filter circuit, which can ensure that the first power supply accurately and reliably supplies power to the position sensor U1. , and the first resistor R1 can also play a current limiting role to protect the position sensor U1; at the same time, the negative end of the power supply of the position sensor U1 is grounded through the second resistor R2, and cooperates with the first power supply connected to the positive end of the power supply to realize effective power supply to the position sensor U1; since the detection result of the position sensor U1 is an analog signal, in order to facilitate the processing and calculation of the controller 6, a signal processing module 9 can be added to convert the position detection result output by the output end of the position sensor U1 into a corresponding digital signal, and further through the RC filter circuit composed of the third resistor R3 and the second capacitor C2 to realize the process of outputting the accurate position detection result to the controller 6. The specific types and implementation methods of the position sensor U1, the first resistor R1, the first capacitor C1, the second resistor R2, the signal processing module 9, the third resistor R3 and the second capacitor C2 are not particularly limited in this application, Figure 3 Port 1 of the position sensor U1 shown is the positive power terminal of the position sensor U1 , port 2 is the output terminal of the position sensor U1 , and port 3 is the negative power terminal of the position sensor U1 .

[0057] Specifically, independent first position detection circuits and second position detection circuits are set to respectively detect and collect the position states of the two lifting motors in real time. At the same time, the first position detection circuit and the second position detection circuit can be implemented by a position detection circuit including a position sensor U1, a first resistor R1, a first capacitor C1, a second resistor R2, a signal processing module 9, a third resistor R3 and a second capacitor C2. The entire circuit structure is simple, easy to implement, stable and reliable, and can effectively realize the position detection of the two lifting motors, ensuring the accuracy and reliability of the position detection results output to the controller 6, which is conducive to the accurate implementation of the entire elliptical machine.

[0058] As an optional embodiment, the signal processing module 9 includes an analog-to-digital converter U2, a third capacitor C3, a fourth resistor R4, a fifth resistor R5 and a first voltage stabilizing module D1. The output end of the position sensor U1 is respectively connected to the positive electrode of the first voltage stabilizing module D1, the first end of the fourth resistor R4 and the first end of the fifth resistor R5. The negative electrode of the first voltage stabilizing module D1 is grounded and connected to the second end of the fourth resistor R4. The second end of the fifth resistor R5 is respectively connected to the first end of the third capacitor C3 and the input end of the analog-to-digital converter U2. The second end of the third capacitor C3 is grounded. The output end of the analog-to-digital converter U2 is connected to the first end of the third resistor R3.

[0059] It is not difficult to understand that the signal processing module 9 plays the role of converting the analog signal output by the position sensor U1 into a digital signal, which can be implemented by a circuit structure including an analog-to-digital converter U2, a third capacitor C3, a fourth resistor R4, a fifth resistor R5 and a first voltage stabilizing module D1. The fourth resistor R4 and the first voltage stabilizing module D1 are connected in parallel to play a role of voltage division, which can ensure the stable voltage of the output end of the position detection module 5 and the input end of the analog-to-digital converter U2. The fifth resistor R5 and the third capacitor C3 constitute an RC filter circuit to improve the accuracy and reliability of the analog signal output to the analog-to-digital converter U2. At the same time, the fifth resistor R5 can also play a role of current limiting to further protect the analog-to-digital converter U2. The analog-to-digital converter U2 converts the received analog signal into a digital signal. The specific types and implementation methods of the analog-to-digital converter U2, the third capacitor C3, the fourth resistor R4, the fifth resistor R5 and the first voltage stabilizing module D1 are not particularly limited in this application. The first voltage stabilizing module D1 can be implemented by voltage stabilizing devices such as voltage stabilizing diodes.

[0060] Specifically, the signal processing module 9 includes an analog-to-digital converter U2, a third capacitor C3, a fourth resistor R4, a fifth resistor R5 and a first voltage stabilizing module D1. The entire circuit structure is simple, easy to implement, stable and reliable, and can effectively realize the analog-to-digital conversion of the analog signal output by the position sensor U1, ensuring the accuracy and reliability of the position detection results output to the controller 6, which is conducive to the accurate implementation of the entire elliptical machine.

[0061] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of an elliptical machine control system provided by the utility model; as an optional embodiment, it also includes an electronic board 10, and a communication connection is established between the electronic board 10 and the controller 6;

[0062] The electronic dashboard 10 is used to display the position status of the first lifting motor 3 and / or the second lifting motor 4 through a display screen, and transmit the user's operation instructions.

[0063] Considering that the elliptical machine needs to be operated and interacted by the user when used as fitness equipment, an electronic panel 10 can be added. The electronic panel 10 can include modules such as a display screen and an interactive module. The electronic panel 10 is set at a position convenient for user operation; the position detection module 5, the controller 6, the first power control module 7 and the second power control module 8 can be set on the same control panel. This control panel is set near the pedal as a lower control panel to facilitate the controller 6 to control the two lifting motors; the upper control electronic panel 10 is connected to the lower control panel by communication. The electronic panel 10 can receive the position status and working parameters of the lifting motor fed back by the lower control panel, and display them through the display screen, so that the user can determine the operation status of the elliptical machine in real time. At the same time, the user can send the operation instructions through the interactive modules such as the operation panel. The electronic panel 10 outputs the operation instructions sent by the user to the controller 6 in the lower control panel, thereby realizing the user's control over the entire elliptical machine. The specific type and implementation method of the electronic panel 10 are not specifically limited in this application.

[0064] Specifically, the user operation can be facilitated by adding an electronic panel 10. Through the communication connection between the electronic panel 10 and the controller 6, the user can effectively control the two lifting motors and their corresponding pedals, which is convenient for the user to operate remotely, further improves the user experience, and is conducive to the application and promotion of the entire elliptical machine.

[0065] Please refer to Figure 5 , Figure 5 A schematic diagram of the structure of a power control module provided by the utility model. As an optional embodiment, the first power control module 7 and the second power control module 8 both include a motor direction control circuit and a motor lifting control circuit, the input end of the motor direction control circuit is connected to the first output end of the controller 6 or the second output end of the controller 6, the input end of the motor lifting control circuit is connected to the first output end of the controller 6 or the second output end of the controller 6, and the output end of the motor direction control circuit is respectively connected to the output end of the motor lifting control circuit, the positive power end of the corresponding first lifting motor 3 or the second lifting motor 4, and the negative power end of the corresponding first lifting motor 3 or the second lifting motor 4;

[0066] The motor direction control circuit is used to control the motor direction of the corresponding first lifting motor 3 or the second lifting motor 4 based on the motor direction control signal output by the controller 6, thereby controlling the movement direction of the corresponding first pedal 1 or the second pedal 2;

[0067] The motor lifting control circuit regulates the motor starting condition of the corresponding first lifting motor 3 or the second lifting motor 4 based on the motor starting control signal output by the controller 6 , thereby controlling the starting condition of the corresponding first pedal 1 or the second pedal 2 .

[0068] It is not difficult to understand that the first power control module 7 and the second power control module 8 are the power supply parts of the corresponding lifting motors, and need to include power input and output parts, control circuits and other related circuits and components. The first power control module 7 and the second power control module 8 need to provide the power required for the operation of the lifting motor, receive the control signal sent by the controller 6, and realize the start, stop and forward and reverse operations of the corresponding lifting motor by controlling the on and off of the power supply. Since the first lifting motor 3 and the second lifting motor 4 in the process of controlling the corresponding pedal action during the operation of the elliptical machine not only need the power control module to control the corresponding lifting motor to start or not start, but also need to have the difference in the direction of movement between rising and falling, so the first power control module 7 and the second power control module 8 both include two parts: the motor direction control circuit and the motor lifting control circuit. Correspondingly, the control signal output by the controller 6 to the first power control module 7 is also divided into a motor direction control signal output to the motor direction control circuit and a motor start control signal output to the motor lifting control circuit. For the entire elliptical machine, the controller 6 needs to output the motor direction control signal and the motor start control signal corresponding to the first lifting motor 3 and the motor direction control signal and the motor start control signal corresponding to the second lifting motor 4, including four different control signals. This application does not specifically limit the specific types and implementation methods of the motor direction control circuit and the motor lifting control circuit.

[0069] Specifically, considering that the working process of the lifting motor includes operations such as starting, stopping, and forward and reverse rotation, the first power control module 7 and the second power control module 8 are both provided with a motor direction control circuit to control the forward and reverse rotation of the lifting motor. At the same time, a motor lifting control circuit is provided to control the starting and stopping of the lifting motor. The entire circuit structure is simple, easy to implement, stable and reliable, and can effectively realize the control of various working processes of the first lifting motor 3 and the second lifting motor 4. The circuit structure of the first power control module 7 and the second power control module 8 is further clarified, which is conducive to the effective implementation of the entire elliptical machine.

[0070] As an optional embodiment, the motor direction control circuit includes a sixth resistor R6, a first control switch Q1, a seventh resistor R7, a second control switch Q2 and a switching switch K, wherein the first end of the sixth resistor R6 serves as an input end of the motor direction control circuit, the second end is connected to the control end of the first control switch Q1, the first end of the first control switch Q1 is connected to the first power supply, the second end is respectively connected to the first end of the seventh resistor R7 and the control end of the second control switch Q2, the second end of the seventh resistor R7 is grounded, the first end of the second control switch Q2 is grounded, the second end is connected to the first control end of the switching switch K, the second control end of the switching switch K is connected to the second power supply, the first fixed end of the switching switch K is connected to the second power supply, the second fixed end is connected to the output end of the motor lifting control circuit, the first switching end is respectively connected to the positive power end of the corresponding first lifting motor 3 or the second lifting motor 4 and the negative power end of the corresponding first lifting motor 3 or the second lifting motor 4, and the second switching end is respectively connected to the negative power end of the corresponding first lifting motor 3 or the second lifting motor 4 and the positive power end of the corresponding first lifting motor 3 or the second lifting motor 4.

[0071] It is not difficult to understand that the motor direction control circuit can switch the power supply direction of the lifting motor by switching the connection status of the power supply at the positive and negative ends of the corresponding lifting motor to realize the switching process of forward and reverse rotation of the lifting motor. The first fixed end of the switching switch K in the motor direction control circuit corresponding to the first power control module 7 is connected to the second power supply, and the second fixed end is connected to the output end of the motor lifting control circuit corresponding to the first power control module 7. The first switching end is respectively connected to the positive power end of the first lifting motor 3 and the negative power end of the first lifting motor 3, and the second switching end is respectively connected to the negative power end of the first lifting motor 3 and the positive power end of the first lifting motor 3. When the first switching end connects the first fixed end with the positive power end of the first lifting motor 3, the second switching end connects the second fixed end with the negative power end of the first lifting motor 3 to form a positive power supply circuit, thereby driving the first lifting motor 3 to rotate forward; when the first switching end connects the first fixed end with the negative power end of the first lifting motor 3, the second switching end connects the second fixed end with the positive power end of the first lifting motor 3 to form a reverse power supply circuit, thereby driving the first lifting motor 3 to reverse. The control process type of the second lifting motor 4 is not repeated in this application.

[0072] Specifically, taking the example of controlling the lifting motor to reverse when the motor direction control signal output by the controller 6 is at a low level and controlling the lifting motor to rotate forward when the motor direction control signal output by the controller 6 is at a high level, the first control switch Q1 is used to be turned on when the motor direction control signal output by the controller 6 is a low level signal, and to be turned off when the motor direction control signal output by the controller 6 is a high level signal; the second control switch Q2 is used to be turned on when the first control switch Q1 is turned on, and to be turned off when the first control switch Q1 is turned off; the switching switch K is used to switch the first power supply to the positive power terminal of the corresponding first lifting motor 3 or the second lifting motor 4 when the second control switch Q2 is turned off, and to switch the output end of the motor lifting control circuit to the negative power terminal of the corresponding first lifting motor 3 or the second lifting motor 4; when the second control switch Q2 is turned on, the first power supply is switched to the negative power terminal of the corresponding first lifting motor 3 or the second lifting motor 4, and the output end of the motor lifting control circuit is switched to the positive power terminal of the corresponding first lifting motor 3 or the second lifting motor 4. Taking the first lifting motor 3 as an example, when the motor direction control signal output by the controller 6 is a low-level signal, the first control switch Q1 is turned on, the control end of the second control switch Q2 is connected to the first power supply and is also turned on and grounded, and the switching switch K connects the positive power end of the first lifting motor 3 to the output end of the motor lifting control circuit, and connects the negative power end of the first lifting motor 3 to the second power supply; when the motor direction control signal output by the controller 6 is a high-level signal, the first control switch Q1 is turned off, and the second control switch Q2 is also turned off, and the switching switch K connects the positive power end of the first lifting motor 3 to the second power supply, and connects the negative power end of the first lifting motor 3 to the output end of the motor lifting control circuit. The control process of the second lifting motor 4 is similar, and this application will not repeat it here.

[0073] It can be understood that the sixth resistor R6 plays a role of current limiting protection, preventing the control end of the first control switch Q1 from being directly subjected to voltage shock, thereby protecting the first control switch Q1; the seventh resistor R7 acts as a pull-down resistor, playing a voltage dividing role, thereby ensuring the stability of the voltage output to the control end of the second control switch Q2; the specific types and implementation methods of the sixth resistor R6, the first control switch Q1, the seventh resistor R7, the second control switch Q2, and the switching switch K are not particularly limited in this application; the first control switch Q1 and the second control switch Q2 can be implemented by power electronic switching devices such as triodes or MOS tubes (Metal-Oxide-Semiconductor field-effect trans istor, metal oxide semiconductor field effect tube), and the switching switch K can be implemented by switching devices such as relays; Figure 5For example, the first control switch Q1 can be implemented by a PNP transistor, the second control switch Q2 can be implemented by an NPN transistor, and the switching switch K is implemented by a relay with two contacts. The first control end of the switching switch K is one end of the coil, the second control end is the other end of the coil, the first fixed end is the fixed end 11 of the first contact, the first switching end is the two connection points 12 and 13 of the first contact, the second fixed end is the fixed end 14 of the second contact, and the second switching end is the two connection points 15 and 16 of the second contact. The first contact of the relay is connected to the second power supply and the positive power supply terminal of the lifting motor by default, and the second contact is connected to the output end of the motor lifting control circuit and the negative power supply terminal of the lifting motor by default. When the second control switch Q2 is turned on, the coil of the relay is energized, the first contact and the second contact are both energized, the first contact is switched to connect the second power supply and the negative power supply terminal of the lifting motor, and the second contact is switched to connect the output end of the motor lifting control circuit and the positive power supply terminal of the lifting motor. Red represents the red power line of the lifting motor, which is also the positive power terminal of the corresponding lifting motor; black represents the black power line of the lifting motor, which is also the negative power terminal of the corresponding lifting motor.

[0074] Specifically, the motor direction control circuit includes a sixth resistor R6, a first control switch Q1, a seventh resistor R7, a second control switch Q2 and a switching switch K. The switching control of the switching switch K is realized by turning on and off the first control switch Q1 and the second control switch Q2, thereby realizing the switching of the connection relationship between the positive power terminal and the negative power terminal of the lifting motor and the power supply, and effectively realizing the switching control of the forward and reverse rotation process of the lifting motor. The entire circuit structure is simple, easy to implement, stable and reliable, and is conducive to the effective implementation of the entire elliptical machine.

[0075] As an optional embodiment, the motor direction control circuit also includes a fourth capacitor C4, an eighth resistor R8, a fifth capacitor C5 and a second voltage stabilizing module D2, the first end of the fourth capacitor C4 is respectively connected to the second end of the first control switch Q1, the first end of the seventh resistor R7 and the first end of the eighth resistor R8, and the second end is grounded, the second end of the eighth resistor R8 is respectively connected to the first end of the fifth capacitor C5, the positive electrode of the second voltage stabilizing module D2 and the control end of the second control switch Q2, the second end of the fifth capacitor C5 is grounded, and is connected to the negative electrode of the second voltage stabilizing module D2.

[0076] It is not difficult to understand that the eighth resistor R8, as a current limiting resistor, can further protect the circuit and ensure the safety and reliability of the second control switch Q2; the fourth capacitor C4 and the fifth capacitor C5 can cooperate with the eighth resistor R8 to achieve filtering, and can also keep the voltage of the control end of the second control switch Q2 at 0V when the first control switch Q1 is turned off. When the first control switch Q1 is turned on, the control end of the second control switch Q2 has a 5V voltage and is also turned on and grounded, and the relay will be attracted to achieve reversal; the second voltage stabilizing module D2 can further protect the second control switch Q2 and ensure the stability of the voltage at the control end of the second control switch Q2. The specific types and implementation methods of the fourth capacitor C4, the eighth resistor R8, the fifth capacitor C5 and the second voltage stabilizing module D2 are not particularly limited in this application, and the second voltage stabilizing module D2 can be implemented using voltage stabilizing devices such as voltage stabilizing diodes. A diode D5 connected in parallel at both ends of the relay coil can also be added to the motor direction control circuit to ensure the stability and accuracy of the voltage at both ends of the relay coil, avoid current backflow, and further protect the circuit; a diode D6 connected between the second power supply and the output end of the motor lifting control circuit can also be added to further ensure the accurate operation of the power supply circuit of the lifting motor.

[0077] Specifically, the motor direction control circuit also includes a fourth capacitor C4, an eighth resistor R8, a fifth capacitor C5 and a second voltage stabilizing module D2, which further protect the motor direction control circuit, ensure the accurate and reliable operation of the second control switch Q2, and improve the accuracy and reliability of the entire motor direction control circuit. The entire circuit structure is simple, easy to implement, stable and reliable, and is conducive to the accurate implementation of the entire elliptical machine.

[0078] As an optional embodiment, the motor lifting control circuit includes a ninth resistor R9, a sixth capacitor C6, a third control switch Q3, a tenth resistor R10, an eleventh resistor R11, a third voltage stabilizing module D3 and a fourth control switch Q4. The first end of the ninth resistor R9 is connected to the first power supply, and the second end is respectively connected to the first end of the sixth capacitor C6 and the control end of the third control switch Q3, and serves as the input end of the motor lifting control circuit. The second end of the sixth capacitor C6 is grounded, the first end of the third control switch Q3 is connected to the third power supply, and the second end is respectively connected to the first end of the tenth resistor R10, the first end of the eleventh resistor R11, the positive electrode of the third voltage stabilizing module D3 and the control end of the fourth control switch Q4. The second end of the tenth resistor R10 is grounded, the second end of the eleventh resistor R11 is grounded, and is respectively connected to the negative electrode of the third voltage stabilizing module D3 and the first end of the fourth control switch Q4. The second end of the fourth control switch Q4 serves as the output end of the motor lifting control circuit.

[0079] It is not difficult to understand that the motor lifting control circuit can control the on and off of the power supply circuit by whether the positive and negative power terminals of the lifting motor connected to the ground and the output terminal of the motor lifting control circuit are connected, thereby realizing the control process of starting or stopping the corresponding lifting motor. The output end of the motor lifting control circuit is connected to the second fixed end of the switching switch K in the motor direction control circuit. When the first switching end of the switching switch K connects the first fixed end to the positive power end of the first lifting motor 3, the second switching end connects the second fixed end to the negative power end of the first lifting motor 3. At this time, when the motor lifting control circuit is turned on, the positive power end of the first lifting motor 3 is connected to the second power supply, and the negative power end is grounded through the turned-on motor lifting control circuit, thereby forming a positive power supply circuit to drive the first lifting motor 3 to rotate forward; when the first switching end connects the first fixed end to the negative power end of the first lifting motor 3, the second switching end connects the second fixed end to the positive power end of the first lifting motor 3. At this time, when the motor lifting control circuit is turned on, the positive power end of the first lifting motor 3 is grounded through the turned-on motor lifting control circuit, and the negative power end is connected to the second power supply, thereby forming a reverse power supply circuit to drive the first lifting motor 3 to reverse. The control process type of the second lifting motor 4 is not repeated in this application.

[0080] Specifically, taking the example of controlling the start of the lifting motor when the motor start control signal output by the controller 6 is at a low level and controlling the stop of the lifting motor when the motor start control signal output by the controller 6 is at a high level, the third control switch Q3 is used to be turned on when the motor start control signal output by the controller 6 is a low level signal, and turned off when the motor start control signal output by the controller 6 is a high level signal; the fourth control switch Q4 is used to be turned on when the third control switch Q3 is turned on, and turned off when the third control switch Q3 is turned off; taking the control object as the first lifting motor 3 as an example, when the controller 6 The output motor start control signal is a low-level signal, and the third control switch Q3 and the fourth control switch Q4 are both turned on, pulling the output end of the motor lifting control circuit down to the ground, so that the positive and negative ends of the power supply of the first lifting motor 3 form a power supply circuit, and control the first lifting motor 3 to start; when the motor start control signal output by the controller 6 is a high-level signal, the third control switch Q3 and the fourth control switch Q4 are both turned off, and the output end of the motor lifting control circuit is suspended, and the positive and negative ends of the power supply of the first lifting motor 3 cannot form a power supply circuit, and the first lifting motor 3 is controlled to stop. The control process of the second lifting motor 4 is similar, and this application will not repeat it here.

[0081] It can be understood that the ninth resistor R9 acts as a pull-up resistor and cooperates with the sixth capacitor C6 to achieve stable acquisition of the motor start control signal output by the controller 6. The tenth resistor R10 is connected between the second end of the third control switch Q3 and the ground to play a role in voltage division protection to ensure the stable operation of the third control switch Q3. The eleventh resistor R11 cooperates with the third voltage stabilizing module D3 to achieve the role of voltage division and voltage stabilization to ensure the stability and reliability of the voltage at the control end of the fourth control switch Q4, and further protect the fourth control switch Q4. The specific types and implementation methods of the ninth resistor R9, the sixth capacitor C6, the third control switch Q3, the tenth resistor R10, the eleventh resistor R11, the third voltage stabilizing module D3 and the fourth control switch Q4 are not particularly limited in this application. The third voltage stabilizing module D3 can be implemented using voltage stabilizing devices such as voltage stabilizing diodes. Figure 5 For example, the third control switch Q3 can be implemented by a PNP transistor, and the fourth control switch Q4 can be implemented by an N-type MOS tube. A low-level signal turns on the third control switch Q3, so that the G pole of the fourth control switch Q4 MOS tube has a 12V voltage turned on, and the lifting motor will rotate.

[0082] Specifically, the motor lifting control circuit includes a ninth resistor R9, a sixth capacitor C6, a third control switch Q3, a tenth resistor R10, an eleventh resistor R11, a third voltage stabilizing module D3 and a fourth control switch Q4. The conduction or shutdown of the power supply circuit of the lifting motor is controlled by the conduction and shutdown of the third control switch Q3 and the fourth control switch Q4, thereby effectively realizing the switching control of the start and shutdown process of the lifting motor. The entire circuit structure is simple, easy to implement, stable and reliable, and is conducive to the effective implementation of the entire elliptical machine.

[0083] As an optional embodiment, the motor lifting control circuit also includes a unidirectional conduction module D4, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a seventh capacitor C7. The positive electrode of the unidirectional conduction module D4 is respectively connected to the second end of the ninth resistor R9 and the first end of the sixth capacitor C6, and the negative electrode is connected to the first end of the twelfth resistor R12. The second end of the twelfth resistor R12 is connected to the control end of the third control switch Q3. The first end of the thirteenth resistor R13 is respectively connected to the second end of the third control switch Q3 and the first end of the tenth resistor R10, and the second end is respectively connected to the first end of the seventh capacitor C7 and the first end of the fourteenth resistor R14. The second end of the fourteenth resistor R14 is respectively connected to the first end of the eleventh resistor R11, the positive electrode of the third voltage stabilizing module D3 and the control end of the fourth control switch Q4, and the second end of the seventh capacitor C7 is grounded.

[0084] It is not difficult to understand that the unidirectional conduction module D4 can specify the current direction to prevent current backflow; the twelfth resistor R12, the thirteenth resistor R13 and the fourteenth resistor R14 are all used as current limiting resistors, which can further protect the circuit and play a certain voltage division role. At the same time, the thirteenth resistor R13, the fourteenth resistor R14 and the seventh capacitor C7 cooperate with each other to form a filtering circuit, further ensuring the accuracy and reliability of the voltage output to the control end of the fourth control switch Q4; the specific types and implementation methods of the unidirectional conduction module D4, the twelfth resistor R12, the thirteenth resistor R13, the fourteenth resistor R14 and the seventh capacitor C7 are not particularly limited in this application. The unidirectional conduction module D4 can be implemented using devices such as diodes.

[0085] Specifically, the motor lifting control circuit also includes a unidirectional conduction module D4, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a seventh capacitor C7, which further protect the motor lifting control circuit, ensure the accurate and reliable operation of the fourth control switch Q4, and improve the accuracy and reliability of the entire motor lifting control circuit. The entire circuit structure is simple, easy to implement, stable and reliable, and is conducive to the accurate implementation of the entire elliptical machine.

[0086] As an optional embodiment, the motor lifting control circuit also includes a fifteenth resistor R15 and an eighth capacitor C8, the first end of the fifteenth resistor R15 is connected to the second end of the fourth control switch Q4, the second end is connected to the first end of the eighth capacitor C8, and the second end of the eighth capacitor C8 is connected to the first end of the fourth control switch Q4.

[0087] It is not difficult to understand that a fifteenth resistor R15 and an eighth capacitor C8 may be further provided at both ends of the fourth control switch Q4. The fifteenth resistor R15 and the eighth capacitor C8 cooperate with each other to ensure the stability and reliability of the voltage at both ends of the fourth control switch Q4 and avoid malfunction of the fourth control switch Q4. At the same time, they may also play a voltage stabilizing role to further protect the fourth control switch Q4. The present application does not make any special limitation on the specific types and implementation methods of the fifteenth resistor R15 and the eighth capacitor C8.

[0088] Specifically, the motor lifting control circuit also includes a fifteenth resistor R15 and an eighth capacitor C8, which can further protect the fourth control switch Q4 and improve the accuracy of the action of the fourth control switch Q4, thereby ensuring the accuracy and reliability of the entire motor lifting control circuit. The entire circuit structure is simple, easy to implement, stable and reliable, and is conducive to the accurate implementation of the entire elliptical machine.

[0089] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0090] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0091] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elliptical machine, It is characterized in that include: a first lifting motor connected to the first pedal of the elliptical machine; a second lifting motor connected to the second pedal of the elliptical machine; A position detection module, whose input ends are respectively connected to the first lifting motor and the second lifting motor, and is used to detect the position state of the first lifting motor and the position state of the second lifting motor; A controller, an input end of which is connected to an output end of the position detection module; A first power control module, the input end of which is connected to the first output end of the controller, the first output end of which is connected to the positive power end of the first lifting motor, and the second output end of which is connected to the negative power end of the first lifting motor, and is used to control the first lifting motor based on a control signal output by the controller corresponding to the position state of the first lifting motor; A second power supply control module, whose input end is connected to the second output end of the controller, whose first output end is connected to the positive power supply end of the second lifting motor, and whose second output end is connected to the negative power supply end of the second lifting motor, is used to control the second lifting motor based on a control signal output by the controller corresponding to the position state of the second lifting motor.

2. The elliptical machine according to claim 1, It is characterized in that The position detection module includes a first position detection circuit and a second position detection circuit, the input end of the first position detection circuit is connected to the first lifting motor, the input end of the second position detection circuit is connected to the second lifting motor, and the output end of the first position detection circuit and the output end of the second position detection circuit are both connected to the input end of the controller.

3. The elliptical machine according to claim 2, It is characterized in that The first position detection circuit and the second position detection circuit both include a position sensor, a first resistor, a first capacitor, a second resistor, a signal processing module, a third resistor and a second capacitor, the input end of the position sensor is connected to the corresponding first lifting motor or the second lifting motor, the first end of the first resistor is connected to the first power supply, the second end is respectively connected to the first end of the first capacitor and the positive end of the power supply of the position sensor, the second end of the first capacitor is grounded, the first end of the second resistor is grounded, the second end is connected to the negative end of the power supply of the position sensor, the output end of the position sensor is connected to the input end of the signal processing module, the output end of the signal processing module is connected to the first end of the third resistor, the second end of the third resistor is respectively connected to the first end of the second capacitor and the input end of the controller, and the second end of the second capacitor is grounded; The signal processing module is used to convert the output signal of the position sensor into a digital signal.

4. The elliptical machine according to claim 3, It is characterized in that The signal processing module includes an analog-to-digital converter, a third capacitor, a fourth resistor, a fifth resistor and a first voltage stabilizing module. The output end of the position sensor is respectively connected to the positive electrode of the first voltage stabilizing module, the first end of the fourth resistor and the first end of the fifth resistor. The negative electrode of the first voltage stabilizing module is grounded and connected to the second end of the fourth resistor. The second end of the fifth resistor is respectively connected to the first end of the third capacitor and the input end of the analog-to-digital converter. The second end of the third capacitor is grounded. The output end of the analog-to-digital converter is connected to the first end of the third resistor.

5. The elliptical machine according to claim 1, It is characterized in that It also includes an electronic meter board, and a communication connection is established between the electronic meter board and the controller; The electronic dashboard is used to display the position status of the first lifting motor and / or the second lifting motor through a display screen, and transmit user operation instructions.

6. The elliptical machine according to any one of claims 1 to 5, It is characterized in that The first power control module and the second power control module both include a motor direction control circuit and a motor lifting control circuit, the input end of the motor direction control circuit is connected to the first output end of the controller or the second output end of the controller, the input end of the motor lifting control circuit is connected to the first output end of the controller or the second output end of the controller, and the output end of the motor direction control circuit is respectively connected to the output end of the motor lifting control circuit, the positive power end of the corresponding first lifting motor or the second lifting motor, and the negative power end of the corresponding first lifting motor or the second lifting motor; The motor direction control circuit is used to adjust the motor direction of the corresponding first lifting motor or the second lifting motor based on the motor direction control signal output by the controller, thereby controlling the movement direction of the corresponding first pedal or the second pedal; The motor lifting control circuit regulates the motor starting condition of the corresponding first lifting motor or the second lifting motor based on the motor starting control signal output by the controller, thereby controlling the starting condition of the corresponding first pedal or the second pedal.

7. The elliptical machine according to claim 6, It is characterized in that The motor direction control circuit includes a sixth resistor, a first control switch, a seventh resistor, a second control switch and a switching switch. The first end of the sixth resistor serves as an input end of the motor direction control circuit, and the second end is connected to the control end of the first control switch. The first end of the first control switch is connected to the first power supply, and the second end is respectively connected to the first end of the seventh resistor and the control end of the second control switch. The second end of the seventh resistor is grounded, the first end of the second control switch is grounded, the second end is connected to the first control end of the switching switch, the second control end of the switching switch is connected to the second power supply, the first fixed end of the switching switch is connected to the second power supply, the second fixed end is connected to the output end of the motor lifting control circuit, the first switching end is respectively connected to the positive power end of the corresponding first lifting motor or the second lifting motor and the negative power end of the corresponding first lifting motor or the second lifting motor, and the second switching end is respectively connected to the negative power end of the corresponding first lifting motor or the second lifting motor and the positive power end of the corresponding first lifting motor or the second lifting motor.

8. The elliptical machine according to claim 7, It is characterized in that The motor direction control circuit also includes a fourth capacitor, an eighth resistor, a fifth capacitor and a second voltage stabilizing module. The first end of the fourth capacitor is respectively connected to the second end of the first control switch, the first end of the seventh resistor and the first end of the eighth resistor, and the second end is grounded. The second end of the eighth resistor is respectively connected to the first end of the fifth capacitor, the positive electrode of the second voltage stabilizing module and the control end of the second control switch. The second end of the fifth capacitor is grounded and connected to the negative electrode of the second voltage stabilizing module.

9. The elliptical machine according to claim 7, It is characterized in that The motor lifting control circuit includes a ninth resistor, a sixth capacitor, a third control switch, a tenth resistor, an eleventh resistor, a third voltage stabilizing module and a fourth control switch. The first end of the ninth resistor is connected to the first power supply, and the second end is respectively connected to the first end of the sixth capacitor and the control end of the third control switch, and serves as the input end of the motor lifting control circuit. The second end of the sixth capacitor is grounded. The first end of the third control switch is connected to the third power supply, and the second end is respectively connected to the first end of the tenth resistor, the first end of the eleventh resistor, the positive electrode of the third voltage stabilizing module and the control end of the fourth control switch. The second end of the tenth resistor is grounded, and the second end of the eleventh resistor is grounded and respectively connected to the negative electrode of the third voltage stabilizing module and the first end of the fourth control switch. The second end of the fourth control switch serves as the output end of the motor lifting control circuit.

10. The elliptical machine according to claim 9, It is characterized in that The motor lifting control circuit also includes a unidirectional conduction module, a twelfth resistor, a thirteenth resistor, a fourteenth resistor and a seventh capacitor. The positive electrode of the unidirectional conduction module is respectively connected to the second end of the ninth resistor and the first end of the sixth capacitor, and the negative electrode is connected to the first end of the twelfth resistor. The second end of the twelfth resistor is connected to the control end of the third control switch. The first end of the thirteenth resistor is respectively connected to the second end of the third control switch and the first end of the tenth resistor, and the second end is respectively connected to the first end of the seventh capacitor and the first end of the fourteenth resistor. The second end of the fourteenth resistor is respectively connected to the first end of the eleventh resistor, the positive electrode of the third voltage stabilizing module and the control end of the fourth control switch, and the second end of the seventh capacitor is grounded.

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