A method for detecting the lifespan of a component

Abstract

A method for detecting the lifespan of components of a mechanical motion device, where the mechanical motion device includes a motor component, a motion component, and a bearing component, and the motor component drives the motion component and the bearing component to move. The method includes: obtaining a first current of the motor component when the mechanical motion device is in a first state; comparing the first current with a specific value to obtain a lifespan detection result of the motor component and / or the motion component; and outputting the detection result. According to the present disclosure, a method for detecting the lifespan of components is provided, which can predict the lifespan of components without adding sensors.

Description

Technical Field

[0001] The present disclosure relates to the field of machinery. Specifically, the present disclosure relates to a method and device for detecting the lifespan of components of a mechanical motion device. Background Art

[0002] Mechanical motion devices often consist of multiple mechanical components. These components will experience wear, deformation, or performance degradation over time during relative motion, and eventually exceed their service life. Replacing components after users have clearly felt problems will result in a poor user experience, and this situation needs to be avoided. Therefore, detecting the lifespan of components is an issue of concern in the industry. Among them, using additional sensors to detect lifespan is a solution, but it will bring the problem of increased costs. Summary of the Invention

[0003] In view of this, the present disclosure provides a method and device for detecting the lifespan of mechanical motion components.

[0004] According to an exemplary embodiment of the present disclosure, a method for detecting the lifespan of components of a mechanical motion device, the mechanical motion device includes a motor component, a motion component, and a bearing component, the motor component drives the motion component and the bearing component to move, the method includes: obtaining a first current of the motor component when the mechanical motion device is in a first state; comparing the first current with a specific value to obtain a lifespan detection result of the motor component and / or the motion component; outputting the detection result.

[0005] According to an exemplary embodiment of the present disclosure, wherein the first state is a state in which the bearing component is located at a first position, moves in a first direction at a first speed, and bears a first weight.

[0006] According to an exemplary embodiment of the present disclosure, wherein obtaining the first current of the motor component when the mechanical motion device is in the first state includes: obtaining a plurality of the first currents when the mechanical motion device is in the first state within a first time period, and using a first statistical method to statistically analyze the statistical information of the plurality of the first currents; the comparing the first current with a specific value includes: comparing the statistical information of the first current with the specific value.

[0007] According to an exemplary embodiment of the present disclosure, wherein the specific value is obtained by the following method: obtaining a plurality of second currents when the mechanical motion device is in the first state within a second time period, and using the first statistical method to statistically analyze the statistical information of the plurality of second currents, and taking the statistical information as the specific value; wherein, the second time period is earlier than the first time period.

[0008] According to an exemplary embodiment of the present disclosure, the first weight is obtained by the following steps: in response to the movement of the bearing member in the second direction, obtaining a plurality of third currents of the motor member, counting the average value of the third currents, and calculating the first weight; wherein the second direction includes a component perpendicular to the horizontal plane direction.

[0009] According to an exemplary embodiment of the present disclosure, the mechanical movement device is a medical bearing bed, the bearing member is a bed board, the motor member drives the bed board to move, the movement member includes a coil spring and a cable, the first end of the cable is connected to the coil spring, the second end of the cable is connected to the bed board and moves with the movement of the bed board, a part of the first end is received in the coil spring, and the coil spring has a pulling force to tension the cable; wherein, comparing the first current with a specific value, the life detection result of the motor member and / or the movement member includes: detecting two current values of the motor member when the bed board moves in opposite two directions at the same speed at the same position and bears the same weight, and calculating the difference therebetween, in response to the difference being smaller than the specific value and lasting for a third time, obtaining the life detection result of the coil spring.

[0010] According to an exemplary embodiment of the present disclosure, the mechanical movement device is a medical bearing bed, the bearing member is a bed board, the motor member drives the bed board to move, wherein, comparing the first current with a specific value, the life detection result of the motor member and / or the movement member includes: detecting the current of the motor member when the bed board is at the same position, moving in the same direction at the same speed and bearing the same weight, in response to the current value being larger than the specific value and lasting for a fourth time, obtaining the life detection result of the motor member.

[0011] According to an exemplary embodiment of the present disclosure, the mechanical movement device is a medical bearing bed, the bearing member is a bed board, the motor member drives the bed board to move through a transmission belt, wherein, comparing the first current with a specific value, the life detection result of the motor member and / or the movement member includes: detecting the delay time in the rapid current rise stage after each start of the motor member, in response to the delay time being larger than the specific value and lasting for a fifth time, obtaining the life detection result of the transmission belt.

[0012] According to an exemplary embodiment of the present disclosure, a mechanical movement system includes: a mechanical movement device, the mechanical movement device includes a motor member, a movement member and a bearing member, the motor member drives the movement member and the bearing member to move; at least one processor; a computer storage medium storing a computer program, the computer program when executed by the at least one processor implements the method according to any one of the embodiments of the present disclosure.

[0013] According to an exemplary embodiment of the present disclosure, a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method in the embodiments of the present disclosure.

[0014] According to an exemplary embodiment of the present disclosure, a computer program product includes a computer program, wherein the computer program, when executed by a processor, implements the method in the embodiments of the present disclosure.

[0015] According to the method for detecting the lifespan of mechanical motion device components provided by the present disclosure, the lifespan of mechanical motion components can be detected. Description of the Drawings

[0016] The following will, by referring to the accompanying drawings and describing in detail the preferred embodiments of the present disclosure, make the above and other features and advantages of the present disclosure clearer to those of ordinary skill in the art. In the drawings:

[0017] Figure 1 is a schematic diagram of a mechanical motion device in an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a schematic diagram showing the change of current over time in an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a schematic diagram showing the change of current over time in an exemplary embodiment of the present disclosure;

[0020] Figure 4 is a schematic diagram showing the change of current over time in an exemplary embodiment of the present disclosure;

[0021] Figure 5 is a schematic diagram of a mechanical motion device in an exemplary embodiment of the present disclosure;

[0022] Figure 6 is a schematic diagram showing the change of current with load in an exemplary embodiment of the present disclosure.

[0023] Among them, the reference numerals are as follows:

[0024] 1 Horizontal motor 2 Vertical motor 3 Main control unit 4 System host 5 Acquisition 6 Reporting 7 Storage / Analysis 8 Volute spring 9 Cable 10 Bed frame Detailed Embodiments

[0025] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the present disclosure in detail with examples. It should be understood that the specific embodiments described herein are only for explaining and interpreting the present disclosure, and are not used to limit the present disclosure.

[0026] In an exemplary embodiment, a method for detecting the lifespan of components of a mechanical motion device according to the present disclosure, the mechanical motion device including a motor component, a moving component, and a bearing component, the motor component driving the moving component and the bearing component to move, the method comprising: obtaining a first current of the motor component when the mechanical motion device is in a first state; comparing the first current with a specific value to obtain a lifespan detection result of the motor component and / or the moving component; and outputting the detection result. In a mechanical motion device, a motor is often used as a power component to drive a bearing component to move, so as to move a load on or in the bearing component in a predetermined manner. In addition to the bearing component, the mechanical motion device often further includes other moving components, such as a transmission component for transmitting the power of the motor to the bearing component, or a cable for conducting electrical signals between different components, or a storage device for storing the redundant part of the cable during movement, and so on. The movement of these components will cause wear to themselves, thereby affecting their lifespan. In this embodiment, the lifespan of each component is detected without adding additional sensors. The inventor found in work that when the mechanical motion device is in the first state, including but not limited to a state where the movement speed, direction, relative position, and load of each component are the same, the motor current should be the same. If the motor current varies greatly from a predetermined specific value in the first state, it indicates that there is a problem with the motor component itself or the moving component. Based on this principle, the method of comparing the current with the specific value can be used to obtain the lifespan detection result of the motor and / or the moving component. Then, the detection result is output for early warning to prompt component replacement. This output detection result can be directly presented to the user or sent to the manufacturer through the network. The manufacturer can obtain the information in the background and visit the user's home to replace the components. Of course, two specific values can be set. When the current value of the motor component is compared with the first specific value and a first result is obtained, it indicates that the lifespan of the motor component and / or the moving component is about to expire. At this time, the manufacturer can stock up spare parts. When the current value of the motor component is compared with the second specific value and a second result is obtained, the manufacturer can immediately visit the user's home to replace the components.

[0027] Specifically refer to Figure 1 , in Figure 1 , the mechanical motion device is a medical bed, wherein the motor component includes a horizontal motor 1 and a vertical motor 2. The horizontal motor 1 controls the horizontal movement of the bed board, which is the bearing component of the bed, and the vertical motor 2 controls the vertical movement of the bed board. In this way, when there is a load, i.e., a patient, on the bed board, the patient can be sent to a designated position in two directions. The main control unit 3 on the bed collects 5 the current data of the motor along two paths and reports 6 it, so as to transmit it to the system host 4. The system host stores / analyzes 7 the current of the motor and processes it to obtain a lifespan analysis result. In Figure 1In an exemplary embodiment, there is a system host 4. In this way, a main control unit 3 with relatively weak processing power can be used, which only collects data and transmits it to the system host 4 with relatively strong processing power. In this way, the main control unit 3 does not perform specific analysis, but uses the system host 4 for processing. The system host 4 can be, for example, the system host of a medical imaging CT, MR, PET or X-ray machine device, and has relatively strong processing power. Reusing the processing power of the system host 4 is beneficial to cost. However, the system host 4 is not necessary. For the case without the system host 4, the main control unit 3 can be used for analysis and storage.

[0028] In an exemplary embodiment, the first state is a state in which the load-bearing component is located at the first position, moves in the first direction at the first speed, and bears the first weight. Generally speaking, when the load-bearing component is in the same state, the states of other moving components are also correspondingly the same. Therefore, it is often sufficient to only detect the state of the load-bearing component. Specifically, detect parameters such as the position, speed, movement direction, and load weight of the load-bearing component. When these parameters are the same, it can be considered that the mechanical motion device is in the same state. At this time, the current of its motor component can be obtained and used to judge the lifespan of the motor component and / or the moving component.

[0029] In an exemplary embodiment, obtaining the first current of the motor component when the mechanical motion device is in the first state includes: obtaining multiple first currents of the mechanical motion device in the first state within the first time period, and using the first statistical method to statistically analyze the statistical information of the multiple first currents; comparing the first current with a specific value includes: comparing the statistical information of the first current with the specific value. Detecting a single current value often cannot explain the problem and may be interfered by abnormal conditions. The aging of components is a process that changes slowly over time. Therefore, statistically analyzing the statistical information of the current over a period of time will yield a more accurate conclusion. For example, statistically analyze the average value of the current values within one week or one month, or remove the data of the largest 10% and the smallest 10% within one week or one month, and statistically analyze the average value of the remaining 80% of the data, or statistically analyze the median of the current values within one week or one month, or remove the data of the largest 10% and the smallest 10% within one week or one month, and statistically analyze the median of the remaining 80% of the data. These methods are all optional. Among them, the time of one week or one month is exemplary and not the best choice. It can be selected according to the lifespan of the component, such as two days, two weeks, three weeks, two months.

[0030] In an exemplary embodiment, a specific value is obtained by the following method: obtaining a plurality of second currents when the mechanical motion device is in the first state during a second time period, and using a first statistical method to statistically analyze the statistical information of the plurality of second currents, and taking the statistical information as the specific value; wherein, the second time period is earlier than the first time period. The obtaining of the specific value is important because the detection of the lifespan usually compares the obtained data with the specific value to obtain the result. The specific value can be preset, and the administrator presets the tested data in the system as the specific value. However, there are errors in each part of each mechanical motion device, and the assembly may also cause slight differences in each mechanical motion device, resulting in the specific value being more preferably different for each mechanical motion device. In this embodiment, the statistical information of the current of the mechanical motion device in an earlier time period is used as the specific value. This is because, in the early stage of the use of the mechanical motion device, all components must be within the normal use range, and its statistical value should be the normal value. The selection of the second time period must be earlier than the first time period. However, the selection of the second time period does not necessarily have to be within a certain period at the very beginning of the use of the mechanical motion device. It can also be after the running-in period. For example, after starting to use, after several weeks of running-in period, then conduct the statistics, so that it is easier to obtain an accurate specific value. The duration of the running-in period can be determined according to the actual situation.

[0031] In an exemplary embodiment, the first weight is obtained through the following steps: in response to the movement of the bearing component in the second direction, obtaining a plurality of third currents of the motor component, statistically analyzing the average value of the third currents, and calculating the first weight; wherein the second direction includes a component perpendicular to the horizontal plane direction. The weight of the load can be manually input by the administrator, but this is often troublesome, and the administrator may not know it either. In this embodiment, the inventor found that when there is a load on the bearing component and a vertical movement occurs, the current of the motor is related to the weight of the load. Taking Figure 1 the medical hospital bed as an example, when there are different loads on the hospital bed, that is, in the case of patients with different body weights, the numerical value of the current of the vertical motor during vertical movement shows a characteristic of being positively correlated with the current load. The greater the load, the greater the current. Specifically, refer to Figure 6 , under different loads, the current of the motor when the bed board moves in two directions is as shown in Figure 6 . The horizontal axis represents the speed, and the unit is millimeters per second. The weight of the load on the current hospital bed can be obtained by calculating the average value of the motor current during a vertical movement and through conversion. This conversion can be carried out according to an empirical formula, or a conversion table can be prepared in advance and obtained by looking up the table, which will not be elaborated here. For the direction of movement, if it is only limited to calculating the vertical movement, it may not exist in a single movement. In this embodiment, the vertical component in the movement is extracted to complete the above weight calculation. For Figure 1The medical bed in it can calculate the relationship between the vertical motor and the vertical movement to obtain the weight value.

[0032] In an exemplary embodiment, specifically refer to Figure 5 , the mechanical motion device is a medical carrying bed, the carrying component is a bed board (not shown), the motor component drives the bed board to move, the moving components include a coil spring 8 and a cable 9, the first end of the cable 9 is connected to the coil spring 8, the second end of the cable 9 is connected to the bed board and moves with the movement of the bed board, a part of the first end is received in the coil spring 8, and the coil spring 8 has a pulling force to tension the cable; wherein, comparing the first current with a specific value, the life detection result of the motor component and / or the moving component includes: detecting two current values of the motor component when the bed board moves at the same speed in opposite directions at the same position and bears the same weight, and calculating their difference, in response to the difference being smaller than the specific value and lasting for a third time, obtaining the life detection result of the coil spring 8. The cable 9 is often connected to the bed board of the medical bed for purposes such as transmitting signals. The cable needs to move with the bed board, and the bed board is installed on the bed frame 10. In this way, as the bed board moves, the cable 9 may be worn and wound. The solution is to use the coil spring 8 to receive the cable 9. After the coil spring 8 is used for a period of time, it will age and cannot generate enough pulling force to tighten the cable 9, so it needs to be replaced. The inventor found that as Figure 4 shown, as the performance of the cable 9 decreases, the values of the motor current in opposite directions will change. Specifically, after the cable 9 ages, the difference between the values in the two directions will decrease, indicating that the pulling force of the cable 9 is insufficient. When the insufficient pulling force of the cable lasts for a period of time, represented by the third time here, which can be one week, one month, etc., it is detected that the coil spring 8 has aged, and the life detection result of the coil spring 8 is output. For Figure 1 the case of the double motor shown, it is necessary to perform a superposition operation on the currents of the two motors, or the current of each motor can be judged separately through the motion components and considered comprehensively. For example, weights are assigned to the currents of each motor, the magnitudes of the currents of the two motors deviating from the predetermined value are calculated, and the results are added after multiplying by the weights, so as to calculate the deviation of an overall current from the predetermined value.

[0033] In an exemplary embodiment, the mechanical motion device is a medical carrying bed, the carrying component is the bed board, and the motor component drives the bed board to move. Among them, comparing the first current with a specific value to obtain the life detection result of the motor component and / or the moving component includes: detecting the current of the motor component when the bed board is at the same position, moving in the same direction at the same speed and carrying the same weight. In response to the current value being greater than the specific value and lasting for a fourth time, the life detection result of the motor component is obtained. The motor itself also has a lifespan. In this embodiment, the lifespan of the motor itself is predicted. The inventor found that after the motor ages, the current will increase under the same state of the mechanical motion device. Through this phenomenon, the current of the motor under the same conditions can be detected. When the current has increased to a certain extent and has lasted for the fourth time, such as one week, one month, etc., it is detected that the motor has aged, and the life detection result of the motor is output. In Figure 1 In the illustrated embodiment, the motor includes a horizontal motor 1 and a vertical motor 2. In this case, the lifespans of the two motors are respectively examined for different movements. For example, the lifespan of the horizontal motor 1 is examined during horizontal movement, and the lifespan of the vertical motor 2 is examined during vertical movement. Of course, the movement can also be decomposed into horizontal movement and vertical movement, so that the lifespans of the horizontal motor 1 and the vertical motor 2 can be respectively examined during the same movement.

[0034] In an exemplary embodiment, the mechanical motion device is a medical carrying bed, the carrying component is the bed board, and the motor component drives the bed board to move through a transmission belt. Among them, comparing the first current with a specific value to obtain the life detection result of the motor component and / or the moving component includes: detecting the delay time of the current rapid rise stage of the motor component after each start. In response to the delay time being greater than the specific value and lasting for a fifth time, the life detection result of the transmission belt is obtained. The transmission belt is a key component of the motor drive. In the brand-new state, the belt is in a taut state, closely fits with the gear, and the gap is small, which ensures the transmission accuracy. However, as the belt ages, the belt tension decreases and the tooth gap increases, which will lead to a decrease in the motion accuracy. The inventor found that when the belt ages, it will cause a slight delay in the current rise after the motor starts to output. By monitoring the current change trend within the starting time period of each movement (for example, 200 ms), if it is found that the delay time of the current rapid rise stage relative to the start of the motor output has increased and this phenomenon has lasted for the fifth time, it can be determined that the belt is aging, and according to the degree of the delay, it can be judged to prompt maintenance or replacement.

[0035] In each embodiment, the duration of time can be examined from at least two aspects. The first is that the phenomenon lasts for a fixed time, and the second is that the phenomenon appears in each movement, and the movement lasts for multiple times (for example, 100 times).

[0036] In an exemplary embodiment, the aging of motor components and moving components is judged. As mentioned before, the performance of each component after aging is not consistent. The aging of the motor is manifested as an increase in current, the aging of the spring is manifested as a change in the current difference between the two directions of movement, and the aging of the conveyor belt is manifested as a delay in the rapid current rise stage. The differences in these patterns help to judge the component that has aged. Further, there are still subtle differences that can be used to judge the component that has aged. For example, if there are multiple conveyor belts, the delay patterns may also be different. For example, in a certain period of time, such as about one year, a specific conveyor belt is prone to aging, while another conveyor belt ages after about two years. For another example, one of the conveyor belts quickly enters the scrapped state after aging, while the other enters the scrapped state more slowly. In this way, it is possible to identify which conveyor belt it is by the speed of entering the scrapped state.

[0037] In an exemplary embodiment, the mechanical motion device is a medical carrier bed. There are various moving components inside the hospital bed, such as vertical push rods, horizontal drag chains, conveyor belts, etc. As the usage time of the hospital bed increases, these moving components will experience wear, deformation, or performance degradation. When this situation develops to a certain extent, phenomena such as abnormal noises, vibrations, and poor accuracy will occur, affecting the user experience. Although the user will ultimately require the maintenance personnel to replace the components to improve the problem, the previous poor user experience will affect the reputation of the product. It is possible to install additional sensors at relevant positions of the moving components to check the usage of the components, but this increases the product cost. The inventor found that the motor current, as a parameter with high specificity, can be detected and some protection logics can be performed based on its value. The motor current of the hospital bed is related to the load, and different site configurations and usage conditions will also cause differences in the current. One method is to simply compare it with a specific value, and such a setting is simple to operate. To further reduce the false alarm rate, the motor current data of the hospital bed at a single site is collected over the entire time. A historical current trend data model at a specific position under a specific load is analyzed from the motor current historical data. When it is found that the current at this point gradually increases or decreases over a period of time, it indicates that the state of the corresponding component has changed. Using the average current for a period of time after the hospital bed is newly installed as a benchmark, a warning change ratio is set. When the current at the detection point changes in a single direction for a long time and reaches the warning ratio, a warning message is prompted to the user, and the corresponding component is checked and replaced.

[0038] The technical solution in this exemplary embodiment has at least the following advantages:

[0039] Pure software logic, no need to modify hardware;

[0040] Based on the historical data of the hospital bed, it avoids misjudgment caused by current differences at different sites, and the warning is more accurate;

[0041] Give a prompt before the end of the component life cycle, which does not affect the user's use and enhances the user experience.

[0042] In an exemplary embodiment, specifically referring to Figure 1 , when motion occurs, the main control unit 3 of the hospital bed collects the motor current from the corresponding motor (horizontal motor 1 or vertical motor 2) at regular time intervals (such as 50 ms), and reports the real-time current and the corresponding real-time position, speed, and direction of the hospital bed to the system host 4 for storage. The system host 4 combines the patient's registration information or measurement information and adds the current load to the database. In this way, a data list with the structure of "position - speed - direction - load - current" is formed. Each motor (horizontal / vertical) maintains such a data table.

[0043] Position (mm) Speed (mm / s) Direction (0 / 1) Load (kg) Current (mA) 2 200 1 100 1500 10 200 1 100 1390 … … … … …

[0044] The system host 4 analyzes the historical data at regular intervals (such as 1 month). Select some position points (such as 0 mm, 100 mm, 500 mm, 1500 mm, 2000 mm), and perform trend statistics on the currents at these position points under the same speed, direction, and load conditions to form a "current - time" relationship table under certain conditions. Specifically, refer to Figure 2 , 3 , Figure 2 is the current trend graph at the position point of 0 mm, speed of 200 mm / s, direction of 1, and load of 100 kg. Figure 3 is the current trend graph at the position point of 500 mm, speed of 100 mm / s, direction of 0, and load of 80 kg. The change ratio of the latest current value at this position point (under certain conditions) relative to the current value at the time of initial installation is called Δ. When it is found through analysis that Δ exceeds the warning value (such as 50%) at several adjacent position points at the same time, and this change trend has continued for a period of time (such as 6 months), it can be considered that the characteristics related to the life of the corresponding moving component have changed, and one or several of aging, wear, and deformation may have occurred. At this time, the background needs to prompt the maintenance personnel to go to the site for inspection, maintenance, or component replacement. The time and warning value in this embodiment are exemplary, and those skilled in the art can set them according to the actual situation.

[0045] In an exemplary embodiment, for the moving components that move with the bed and exert a continuous force on the bed body, the relationship between the current difference in two directions and time at the same position point under the same speed and load conditions can also be detected. Taking the Figure 5 spring 8 component in Figure 4, when it is found that the current difference in two directions at three position points (200mm, 600mm, 1000mm) decreases significantly and lasts for a period of time (e.g., 6 months), it can be determined that the force acting on the moving part of the connected hospital bed decreases and its lifespan is approaching. At this time, a prompt for replacement is given.

[0046] According to another aspect of the embodiments of the present disclosure, a mechanical motion system is provided, which is characterized by including: a mechanical motion device, the mechanical motion device includes a motor component, a moving component and a bearing component, and the motor component drives the moving component and the bearing component to move; at least one processor; a computer storage medium storing a computer program, and the computer program, when executed by the at least one processor, implements the detection method according to any one of the above embodiments of the present disclosure.

[0047] According to another aspect of the embodiments of the present disclosure, a computer-readable storage medium storing a computer program is provided, wherein the computer program, when executed by a processor, implements the detection method according to any one of the above embodiments of the present disclosure

[0048] According to another aspect of the embodiments of the present disclosure, a computer program product is provided, including a computer program, wherein the computer program, when executed by a processor, implements the detection method according to any one of the above embodiments of the present disclosure.

[0049] The various embodiments of the systems and techniques described above in this article can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs, and the one or more computer programs can be executed and / or interpreted on a programmable system including at least one programmable processor, and the programmable processor can be a dedicated or general-purpose programmable processor, and can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0050] The program code for implementing the methods of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing devices, such that when the program codes are executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program codes can be executed entirely on the machine, partially on the machine, executed partially on the machine and partially on a remote machine as an independent software package, or executed entirely on a remote machine or server.

[0051] In the context of the present disclosure, a computer-readable storage medium can be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination of the foregoing. More specific examples of a readable storage medium include electrical connections based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0052] It should be understood that various forms of the flow shown above can be used, steps can be reordered, added, or deleted. For example, the steps described in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and no limitations are imposed herein.

[0053] Although embodiments or examples of the present disclosure have been described with reference to the accompanying drawings, it should be understood that the above methods, systems, and devices are merely exemplary embodiments or examples, and the scope of the present invention is not limited by these embodiments or examples, but is only defined by the authorized claims and their equivalent scope. Various elements in the embodiments or examples can be omitted or replaced by their equivalent elements. In addition, the steps can be executed in a different order than described in the present disclosure. Importantly, with the evolution of technology, many of the elements described herein can be replaced by equivalent elements that emerge after the present disclosure.

[0054] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure does not separately describe various possible combination manners.

Claims

1. A method for detecting the lifespan of a component of a mechanical motion device, wherein the mechanical motion device includes a motor component, a moving component, and a bearing component, and the motor component drives the moving component and the bearing component to move. The method includes: Obtain a first current of the motor component when the mechanical motion device is in a first state; Compare the first current with a specific value to obtain a life detection result of the motor component and / or the moving component; Output the detection result; Wherein: the mechanical motion device is a medical carrying bed, the carrying component is a bed board, the motor component drives the bed board to move, and wherein, comparing the first current with a specific value to obtain a life detection result of the motor component and / or the moving component includes: Detect the current of the motor component when the bed board is at the same position, moving at the same speed in the same direction and carrying the same weight as the first current. In response to the current value of the first current being greater than the specific value and lasting for a fourth time, obtain the life detection result of the motor component.

2. The detection method according to claim 1, wherein the first state is a state in which the bearing component is located at a first position, moves in a first direction at a first speed, and bears a first weight.

3. The detection method according to claim 2, wherein obtaining the first current of the motor component when the mechanical motion device is in the first state includes: Obtain multiple first currents of the mechanical motion device in the first state within a first time period, and use a first statistical method to statistically analyze the statistical information of the multiple first currents; The comparing the first current with a specific value includes: Compare the statistical information of the first current with the specific value.

4. The detection method according to claim 3, wherein the specific value is obtained by the following method: Obtain a plurality of second currents of the mechanical motion device in the first state within a second time period, and use the first statistical method to statistically analyze the statistical information of the plurality of second currents, and use the statistical information as the specific value; Wherein, The second time period is earlier than the first time period.

5. The detection method according to claim 2, wherein the first weight is obtained through the following steps: In response to the movement of the bearing component in a second direction, obtain a plurality of third currents of the motor component, statistically analyze the average value of the third currents, and calculate the first weight; Wherein the second direction includes a component perpendicular to the horizontal plane direction.

6. The detection method according to claim 1, wherein the mechanical motion device is a medical bearing bed, the bearing component is a bed board, the motor component drives the bed board to move, the moving component includes a coil spring and a cable, the first end of the cable is connected to the coil spring, the second end of the cable is connected to the bed board and moves with the movement of the bed board, a part of the first end is received in the coil spring, and the coil spring has a tensile force to tension the cable; wherein, Comparing the first current with a specific value to obtain a life detection result of the motor component and / or the moving component includes: Detect two current values of the motor component when the bed board moves at the same speed in two opposite directions at the same position and carrying the same weight, and calculate their difference. In response to the difference being smaller than the specific value and lasting for a third time, obtain the life detection result of the coil spring.

7. The detection method according to claim 1, wherein the mechanical motion device is a medical carrying bed, the carrying component is a bed board, and the motor component drives the bed board to move through a transmission belt, wherein, Comparing the first current with a specific value to obtain a life detection result of the motor component and / or the moving component includes: Detect the delay time of the motor component during the rapid current rise stage after each start. In response to the delay time being greater than the specific value and lasting for a fifth time, obtain the life detection result of the transmission belt.

8. A mechanical motion system, characterized in that Comprising: A mechanical motion device, the mechanical motion device includes a motor component, a moving component and a carrying component, and the motor component drives the moving component and the carrying component to move; At least one processor; A computer storage medium storing a computer program, and the computer program, when executed by the at least one processor, implements the method according to any one of claims 1-7.

9. A computer-readable storage medium storing a computer program, wherein, The computer program, when executed by the processor, implements the method according to any one of claims 1-7.

10. A computer program product, comprising a computer program, wherein, The computer program, when executed by the processor, implements the method according to any one of claims 1-7.

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