A multi-motor control method and device for a large-scale carding equipment

Abstract

The application provides a multi-motor control method and device for large-scale combing equipment, which is used for a combing equipment control terminal, the combing equipment control terminal is electrically connected with a driving motor and at least one driven motor, the driving motor and the driven motor respectively provide power for each part of the large-scale combing equipment, and the method comprises the following steps: obtaining an expected rotating speed and a current rotating speed of the driving motor, and judging the size relationship between the expected rotating speed and the current rotating speed of the driving motor; through the analysis of the obtained expected rotating speed and the current rotating speed of the driving motor, the voltage regulation type can be automatically determined, a positive voltage with a fixed ratio of the driving voltage is input to the driven motor, the driven motor can be synchronously accelerated, a negative voltage with different intensity of the driving voltage is input to the driven motor, the driving motor and the driven motor can be respectively decelerated at different rates, the influence of inertia is overcome to a certain extent, and the rotating speed ratio of the driving motor and the driven motor is the same at any time period.

Description

Technical Field

[0001] This invention patent relates to the field of combing equipment control technology, specifically to a multi-motor control method and device for large-scale combing equipment. Background Technology

[0002] The function of a wool carding machine is to thoroughly loosen the blended material after wool mixing and oiling, making it into single fibers. Further mixing and impurity removal ensures the loosened fibers are as straight and parallel as possible, ultimately producing smooth, round, and tight continuous small wool slivers. These slivers are then wound into bundles for easy handling, storage, and further processing. Therefore, carding is a crucial process, mainly including an automatic wool feeder, a pre-carding section, a carding section, a bridging section, and a sliver forming section. The process is as follows: The blended material from the wool mixing process is first fed into the automatic wool feeder. The automatic wool feeder quantitatively feeds the blended material through a lifting curtain, a weighing hopper, and a feeding roller into the pre-carding machine. In the pre-carding machine, the blended material is carded by the cylinder and working rollers, breaking down large clumps into smaller clumps and fiber bundles. Then, the smaller fiber clumps are transferred to the first carding machine by transport rollers. The large cylinder of the first carding machine, along with five pairs of working rollers and stripping rollers, thoroughly mixes the clumps and bundles of fibers. The fibers are loosened into single fibers by carding and then pulled out from the gaps in the cylinder by the blower. They are then gathered on the doffer and cut off by the cutter to form a web. The web is fed into the first folding machine, where it undergoes longitudinal and transverse folding and mixing, ensuring thorough mixing of the fibers. It then exits the first folding machine and enters the second carding machine for further carding and mixing, where it is carded into single fibers again. It then passes through the blower, doffer, and cutter to form a web once more and enters the second folding machine. After folding and mixing in the second folding machine, the web enters the third carding machine for a final carding. The web output from the doffer has a relatively high degree of fiber straightness and orientation. The web is then fed into the sizing machine, where it is cut into several small strips by the belt yarn. Finally, it passes through four pairs of swivels and is twisted into smooth, round, and tight small slivers (i.e., roving), which are then wound into roving cakes.

[0003] Traditional carding machines connect different stations via chain drives or auxiliary shaft drives. This mechanical transmission method has drawbacks such as high noise, high failure rate, difficulty in procuring spare parts, high maintenance difficulty, cumbersome operation, high power consumption, and difficulty in adjusting the speed ratio. The speed ratio can only be changed by replacing the sprocket or adding a gearbox, and it can only be divided into front and rear zones, and cannot independently stop or start a zone. However, multi-motor drives make it difficult to achieve synchronous acceleration or deceleration of power shafts with different speeds. This leads to accumulation and supply interruptions of wool when it is transferred between different stations, which cannot meet processing requirements and presents application difficulties. Therefore, this invention provides a multi-motor control method and device for large-scale carding equipment to solve the above problems.

[0004] Invention Patent Content

[0005] To address the shortcomings of existing technologies, this invention provides a multi-motor control method and device for large-scale combing equipment, enabling synchronous acceleration or deceleration of power shafts with different rotational speeds.

[0006] According to a first aspect of the present disclosure, a preferred embodiment of the present invention provides a multi-motor control method for a large-scale combing device, used in a combing device control terminal. The combing device control terminal is electrically connected to a drive motor and at least one driven motor, wherein the drive motor and the driven motor respectively provide power to various parts of the large-scale combing device, including:

[0007] Obtain the desired speed and current speed of the active motor, and determine the relationship between the desired speed and current speed of the active motor;

[0008] Based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor; this active voltage is either positive or negative.

[0009] A passive voltage with a different intensity than the active voltage is generated synchronously and input to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value.

[0010] In one embodiment, based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor. This active voltage is divided into positive and negative voltages, including:

[0011] If the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the active motor to achieve the desired speed. The coefficient calculation formula is as follows:

[0012] m1=k1

[0013] Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed;

[0014] If the desired speed of the active motor is less than the current speed, a negative voltage with decreasing intensity is input to the active motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0015] m1 = a1 * (1 - n1 / f1)

[0016] Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

[0017] In one embodiment, a passive voltage, different in intensity from the active voltage, is synchronously generated and input to the driven motor to ensure that the speed ratio between the active and driven motors is a fixed value, including:

[0018] If the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the driven motor to achieve the desired speed. The coefficient calculation formula is as follows:

[0019] m2=k1*i

[0020] Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor.

[0021] If the desired speed of the active motor is less than the current speed, a decreasing negative voltage is input to the driven motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0022] m2 = a2*(1 - f1*i / f2)

[0023] Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

[0024] According to a second aspect of the present disclosure, this invention provides a multi-motor control device for a large-scale combing equipment, used in a combing equipment control terminal. The combing equipment control terminal is electrically connected to a drive motor and at least one driven motor, wherein the drive motor and the driven motor respectively provide power to various parts of the large-scale combing equipment, including:

[0025] The acquisition module is used to acquire the expected speed and the current speed of the active motor, and to determine the relationship between the expected speed and the current speed of the active motor.

[0026] The main control module is used to input an active voltage matching the desired speed to the active motor based on the relationship between the desired speed and the current speed of the active motor. This active voltage can be either positive or negative.

[0027] The control module is used to synchronously generate a voltage with a different intensity than the active voltage as a passive voltage, and input the passive voltage to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value.

[0028] In one embodiment, the master control module includes:

[0029] The active acceleration module is used to directly input a positive voltage to the active motor to achieve the desired speed if the desired speed of the active motor is not less than the current speed. The coefficient calculation formula used is as follows:

[0030] m1=k1

[0031] Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed;

[0032] An active braking module is used to input a decreasing negative voltage to the active motor if the desired speed of the active motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0033] m1 = a1 * (1 - n1 / f1)

[0034] Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

[0035] In one embodiment, the sub-control module includes:

[0036] The driven acceleration module is used to directly input a positive voltage to the driven motor to achieve the desired speed if the desired speed of the driven motor is not less than the current speed. The coefficient calculation formula used is as follows:

[0037] m2=k1*i

[0038] Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor.

[0039] The driven braking module is used to input a decreasing negative voltage to the driven motor if the desired speed of the driven motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0040] m2 = a2*(1 - f1*i / f2)

[0041] Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

[0042] According to a third aspect of the present disclosure, the present invention provides a multi-motor control device for a large-scale combing machine, comprising:

[0043] processor;

[0044] Memory used to store the processor's executable instructions;

[0045] The processor is configured to perform the steps of the above method.

[0046] According to a fourth aspect of the present disclosure, the present invention provides a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor of the steps of the above-described method.

[0047] As can be seen from the above technical solution, the multi-motor control method and device for large-scale combing equipment provided by this invention patent can include the following beneficial effects: By acquiring and analyzing the desired speed and current speed of the active motor, this disclosure can automatically determine the voltage regulation type, input a positive voltage with a fixed ratio to the active voltage to the driven motor, which can accelerate synchronously, and input a negative voltage with a different intensity than the active voltage to the driven motor, which can cause the active motor and the driven motor to decelerate at different rates, thus overcoming the influence of inertia to a certain extent, so as to ensure that the speed ratio of the two is the same at any time, and avoiding the accumulation and interruption of wool when it is transferred between different stations of the combing machine, thus ensuring the quality of the finished product of the combing machine.

[0048] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this disclosure. Attached Figure Description

[0049] To more clearly illustrate the specific embodiments of this invention, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0050] Figure 1 A flowchart of a multi-motor control method for a large combing device provided for this invention patent;

[0051] Figure 2 A flowchart of step S2 in a multi-motor control method for a large combing device provided in this invention patent;

[0052] Figure 3 A flowchart of step S3 in a multi-motor control method for a large combing device provided in this invention patent;

[0053] Figure 4 A block diagram of a multi-motor control device for a large combing machine provided for this invention patent;

[0054] Figure 5 A block diagram of another multi-motor control device for a large combing machine provided in this invention patent. Detailed Implementation

[0055] The embodiments of the technical solution of this invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of this invention and are therefore intended to limit the scope of protection of this invention.

[0056] Figure 1 This invention provides a flowchart of a multi-motor control method for a large-scale combing device. This method is applied to a control terminal for the combing device, which can display images, videos, text messages, WeChat messages, etc. The terminal can be equipped with any terminal device with a display screen, such as a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet, medical device, fitness equipment, or personal digital assistant. This embodiment provides a multi-motor control method for a large-scale combing device, such as... Figure 1 As shown, the method is used in a combing equipment control terminal, which is electrically connected to a drive motor and at least one driven motor. The drive motor and the driven motor provide power to various parts of the large combing equipment, and include the following steps S1-S3:

[0057] In step S1, the desired speed and current speed of the active motor are obtained, and the relationship between the desired speed and current speed of the active motor is determined.

[0058] In this implementation, the speed of the active motor and the driven motor is measured by a speed encoder, and the desired speed of the active motor is input by a button, which can be manually adjusted and controlled. Each driven motor can be started and stopped independently, which greatly improves the flexibility of the equipment and has an advantage that mechanical transmission cannot match.

[0059] In step S2, based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor. This active voltage can be either a positive voltage or a negative voltage.

[0060] In step S3, a voltage with a different intensity than the active voltage is generated synchronously as a passive voltage, and the passive voltage is input to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value.

[0061] In this implementation, because the active motor and the driven motor operate at different speeds, the motor with the higher speed has greater inertia and takes longer to reach the required output speed during braking and deceleration. This can lead to material accumulation and supply interruption in the combing machine. Therefore, the active motor and the driven motor need to be braked with different intensities to achieve synchronization between the two.

[0062] Specifically, the driving motor and the driven motor adopt friction braking or electromagnetic braking, with electromagnetic braking being preferred, to prevent braking errors caused by wear of braking components. The positive current is the motor input current, and the negative current is the braking device input current.

[0063] Among them, such as Figure 2 As shown, in step S2, based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor. The active voltage is divided into positive voltage and negative voltage, including the following steps S201-S202:

[0064] In step S201, if the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the active motor to achieve the desired speed. The coefficient calculation formula used is as follows:

[0065] m1=k1

[0066] Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed;

[0067] In this implementation method, within a certain range, the higher the voltage of the motor, the higher its speed, and the two are directly proportional. It should be noted that the voltage values ​​of the active motor under different speed conditions can be obtained through active motor experiments, which can improve the accuracy.

[0068] In step S202, if the desired speed of the active motor is less than the current speed, a negative voltage with decreasing intensity is input to the active motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0069] m1 = a1 * (1 - n1 / f1)

[0070] Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

[0071] In this implementation method, the calculation process is as follows:

[0072] First, the ratio of the desired speed of the active motor to the current speed is calculated to generate a complementary adjustment ratio. The coefficient calculation formula used is as follows:

[0073] s1=1-n1 / f1

[0074] Where s1 represents the adjustment ratio of the active motor, n1 represents the desired speed of the active motor, and f1 represents the current speed of the active motor;

[0075] The current for the current period, after the previous period's current has been adjusted according to the regulation ratio, is then input into the active motor. The coefficient calculation formula used is as follows:

[0076] m1=a1*s1

[0077] Where s1 represents the ratio of the desired speed of the active motor to the current speed, m1 represents the current value of the active motor in the current period, and a1 represents the current value of the active motor in the previous period.

[0078] In one embodiment, such as Figure 3 As shown, in step S3, a voltage with a different intensity than the active voltage is synchronously generated as a passive voltage, and the passive voltage is input to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value, including the following steps S301-S302:

[0079] In step S301, if the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the driven motor to achieve the desired speed. The coefficient calculation formula used is as follows:

[0080] m2=k1*i

[0081] Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor.

[0082] In this implementation, within a certain range, the higher the motor voltage, the higher its speed, and the two are directly proportional. It should be noted that the motor speed is also related to factors such as motor performance and load. The voltage values ​​of the active and driven motors at different speeds can also be obtained through experiments to obtain the relationship between the output voltages of the active and driven motors, which can improve accuracy.

[0083] In step S302, if the desired speed of the active motor is less than the current speed, a negative voltage with decreasing intensity is input to the driven motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0084] m2 = a2*(1 - f1*i / f2)

[0085] Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

[0086] In this implementation, the calculation process is as follows:

[0087] First, calculate the product of the current speed of the active motor and the speed ratio to obtain the desired speed of the driven motor. The coefficient calculation formula used is as follows:

[0088] n2=f1*i

[0089] Where f1 represents the current speed of the active motor, i represents the speed ratio between the active motor and the driven motor, and n2 represents the desired speed of the driven motor.

[0090] The ratio of the desired speed of the driven motor to the current speed is then calculated to generate a complementary adjustment ratio. The coefficient calculation formula used is shown below.

[0091] s2=1-n2 / f2

[0092] Where s2 represents the driven motor adjustment ratio, n2 represents the desired speed of the driven motor, and f2 represents the current speed of the driven motor;

[0093] Then, the current for the current period, after the current from the previous period has been changed according to the adjustment ratio, is input to the driven motor. The coefficient calculation formula used is as follows:

[0094] m2=a2*s2

[0095] Where m2 represents the current value of the driven motor in the current period, s2 represents the adjustment ratio of the driven motor, and a2 represents the current value of the driven motor in the previous period.

[0096] The following are embodiments of the apparatus disclosed herein, which can be used to execute embodiments of the method disclosed herein.

[0097] Figure 4 This invention patent provides a block diagram of a multi-motor control device for a large-scale combing machine. This device can be implemented as part or all of an electronic device through software, hardware, or a combination of both. Figure 4 As shown, the device is used as a control terminal for a combing equipment. The control terminal is electrically connected to a drive motor and at least one driven motor. The drive motor and driven motor provide power to various parts of the large combing equipment, including:

[0098] The acquisition module 10 is used to acquire the expected speed and the current speed of the active motor, and to determine the relationship between the expected speed and the current speed of the active motor.

[0099] The main control module 20 is used to input an active voltage matching the desired speed to the active motor based on the relationship between the desired speed and the current speed of the active motor; the active voltage is divided into positive voltage and negative voltage; and

[0100] The control module 30 is used to synchronously generate a voltage with a different intensity than the active voltage as a passive voltage, and input the passive voltage to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value.

[0101] This disclosure, through the acquisition and analysis of the desired speed and current speed of the active motor, can automatically determine the voltage regulation type. By inputting a positive voltage with a fixed ratio to the active voltage to the driven motor, synchronous acceleration can be achieved. By inputting a negative voltage with a different intensity than the active voltage to the driven motor, the active and driven motors can decelerate at different rates, which to some extent overcomes the influence of inertia and ensures that the speed ratio of the two motors is the same at any time. This can avoid the accumulation and supply interruption of wool when it is transferred between different stations of the carding machine, thus ensuring the quality of the finished product of the carding machine.

[0102] In one embodiment, such as Figure 4 As shown, the main control module 20 includes:

[0103] The active acceleration module 21 is used to directly input a positive voltage to the active motor to achieve the desired speed if the desired speed of the active motor is not less than the current speed. The coefficient calculation formula used is as follows:

[0104] m1=k1

[0105] Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed;

[0106] The active braking module 22 is used to input a decreasing negative voltage to the active motor if the desired speed of the active motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0107] m1 = a1 * (1 - n1 / f1)

[0108] Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

[0109] In one embodiment, such as Figure 4 As shown, the sub-control module 30 includes:

[0110] The driven acceleration module 31 is used to directly input a positive voltage to the driven motor to achieve the desired speed if the desired speed of the driven motor is not less than the current speed. The coefficient calculation formula used is as follows:

[0111] m2=k1*i

[0112] Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor.

[0113] The driven braking module 32 is used to input a decreasing negative voltage to the driven motor if the desired speed of the driven motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows:

[0114] m2 = a2*(1 - f1*i / f2)

[0115] Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

[0116] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0117] This disclosure also provides another multi-motor control device for large-scale combing equipment:

[0118] Figure 5 This is a block diagram illustrating a blood oxygen measurement device 800 unaffected by ambient light, according to an exemplary embodiment. For example, device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0119] Reference Figure 5 The device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0120] Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0121] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0122] Power supply component 806 provides power to various components of device 800. Power supply component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 800.

[0123] Multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0124] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0125] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0126] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or a component of device 800, the presence or absence of user contact with device 800, the orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0127] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or combinations thereof.

[0128] In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In another exemplary embodiment, the communication component 816 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0129] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0130] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0131] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0132] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A multi-motor control method for a large-scale combing device, used in a combing device control terminal, characterized in that, The combing equipment control terminal is electrically connected to a drive motor and at least one driven motor, which provide power to various parts of the large combing equipment, including: Obtain the desired speed and current speed of the active motor, and determine the relationship between the desired speed and current speed of the active motor; Based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor; this active voltage is either positive or negative. A passive voltage with a different intensity than the active voltage is generated synchronously and input to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value. Specifically, a passive voltage, different in intensity from the active voltage, is generated synchronously and input to the driven motor to ensure that the speed ratio between the active and driven motors is a fixed value. This includes: If the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the driven motor to achieve the desired speed. The coefficient calculation formula is as follows: m2=k1*i Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor. If the desired speed of the active motor is less than the current speed, a decreasing negative voltage is input to the driven motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows: m2 = a2 * (1 - f1 * i / f2) Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

2. The method according to claim 1, characterized in that, Based on the relationship between the desired speed and the current speed of the active motor, an active voltage matching the desired speed is input to the active motor. This active voltage is divided into positive and negative voltages, including: If the desired speed of the active motor is not less than the current speed, a positive voltage is directly input to the active motor to achieve the desired speed. The coefficient calculation formula is as follows: m1=k1 Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed; If the desired speed of the active motor is less than the current speed, a negative voltage with decreasing intensity is input to the active motor. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows: m1 = a1 * (1 - n1 / f1) Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

3. A multi-motor control device for a large-scale combing machine, characterized in that, A control terminal for a combing equipment, characterized in that the control terminal is electrically connected to a drive motor and at least one driven motor, wherein the drive motor and the driven motor respectively provide power to various parts of the large combing equipment, including: The acquisition module is used to acquire the expected speed and the current speed of the active motor, and to determine the relationship between the expected speed and the current speed of the active motor. The main control module is used to input an active voltage matching the desired speed to the active motor based on the relationship between the desired speed and the current speed of the active motor. This active voltage can be either positive or negative. The control module is used to synchronously generate a voltage with a different intensity than the active voltage as a passive voltage, and input the passive voltage to the driven motor so that the speed ratio between the active motor and the driven motor is a fixed value. The sub-control module includes: The driven acceleration module is used to directly input a positive voltage to the driven motor to achieve the desired speed if the desired speed of the driven motor is not less than the current speed. The coefficient calculation formula used is as follows: m2=k1*i Where m2 represents the voltage value of the driven motor at the current time period, k1 represents the positive voltage value of the driving motor used to achieve the desired speed, and i represents the speed ratio between the driving motor and the driven motor. The driven braking module is used to input a decreasing negative voltage to the driven motor if the desired speed of the driven motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows: m2 = a2 * (1 - f1 * i / f2) Where m2 represents the current voltage value of the driven motor, f1 represents the current speed value of the driving motor, i represents the speed ratio between the driving motor and the driven motor, f2 represents the current speed value of the driven motor, and a2 represents the voltage value of the driven motor in the previous period.

4. The apparatus according to claim 3, characterized in that, The central control module includes: The active acceleration module is used to directly input a positive voltage to the active motor to achieve the desired speed if the desired speed of the active motor is not less than the current speed. The coefficient calculation formula used is as follows: m1=k1 Where m1 represents the voltage value of the active motor in the current period, and k1 represents the positive voltage value of the active motor used to achieve the desired speed; An active braking module is used to input a decreasing negative voltage to the active motor if the desired speed of the active motor is less than the current speed. The intensity of the negative voltage is always less than the intensity of the positive voltage used to achieve the current speed. The coefficient calculation formula used is as follows: m1 = a1 * (1 - n1 / f1) Where m1 represents the voltage value of the active motor in the current period, n1 represents the desired speed of the active motor, f1 represents the current speed of the active motor, and a1 represents the voltage value of the active motor in the previous period.

5. A multi-motor control device for a large-scale combing machine, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is configured to perform the steps of the method of any one of claims 1 to 2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of any one of claims 1 to 2.

Images