Nut displacement discrimination method and system combined with LDSW technology

Abstract

The invention discloses a nut displacement judgment method and system combined with an LDSW technology, and the method comprises the following steps: S1, arranging a judgment system above a nut, and integrating a detection contact, an LDSW module and a prompt module in the judgment system; s2, associating the ID and the position information of the nut; s3, the looseness state of the nut is monitored through the detection contact, and when the detection contact sends a trigger signal to the LDSW module, the LDSW module sends an alarm signal to the gateway; and S4, the gateway receives an alarm signal from the LDSW module and uploads the alarm signal to a platform, and the platform controls a prompt module to flicker and give an alarm to assist in positioning the target nut. By continuously monitoring the loosening state of the nut and quickly responding, the loosened nut can be quickly confirmed, and potential structure faults and safety accidents can be prevented. Visual and auditory assistance is provided through flickering and alarming of the prompt module, the equipment maintenance efficiency is improved, the judgment system is installed above the nut, installation is easy, the judgment effect is good, the power consumption requirement is low, and a button battery can be adopted for power supply.

Description

Technical Field

[0001] The present invention relates to the field of mechanical equipment safety monitoring and Internet of Things communication, and in particular to a nut displacement determination method and system combined with LDSW (LowDuty Cycle Smart Wireless, ultra-low duty cycle intelligent wireless communication technology) technology. Background Art

[0002] Loosening of nuts is a very common safety hazard in mechanical equipment and various engineering structures. It brings certain risks to the equipment or structure and affects stability and safety.

[0003] At present, the detection and confirmation of loose nuts still largely rely on the traditional method of manual inspection, which requires workers to check each nut one by one, through visual observation, hand feeling judgment or the use of simple tools to assist in detection. This method is not only time-consuming and laborious, but also difficult to meet the needs of rapid response and efficient operation and maintenance, especially when facing large-scale mechanical equipment or complex engineering structures, due to the large number of nuts and their wide distribution, and the accuracy of manual inspection is also difficult to guarantee. Summary of the invention

[0004] In view of this, the present invention proposes a nut displacement determination method combined with LDSW technology, comprising the following steps:

[0005] S1: a discrimination system is arranged above the nut, wherein the discrimination system integrates a detection contact, an LDSW module and a prompt module, wherein the detection contact is used to send a trigger signal to the LDSW module when the nut is loose;

[0006] S2: Associating the ID and position information of the nut;

[0007] S3: The loose state of the nut is monitored by the detection contact. When the detection contact sends a trigger signal to the LDSW module, the LDSW module sends an alarm signal to the gateway and executes step S4. If the detection contact does not send a trigger signal to the LDSW module, step S3 is executed again after an interval time T1.

[0008] S4: The gateway receives the alarm signal from the LDSW module and uploads it to the platform, and the platform controls the prompt module to flash and sound an alarm to assist in locating the target nut.

[0009] According to a preferred embodiment, in S1, when the detection contact detects that the applied pressure of the nut is greater than F1, the detection contact sends a first trigger signal to the LDSW module, and when the detection contact detects that the applied pressure of the nut is greater than F2, the detection contact sends a second trigger signal to the LDSW module, wherein F1 is less than F2, and the applied pressure refers to the pressure applied by the nut on the detection contact.

[0010] Furthermore, when the LDSW module receives the first trigger signal, the LDSW module sends a first alarm signal to the gateway and uploads it to the platform, and the platform controls the prompt module to execute a first flashing form.

[0011] When the LDSW module receives the second trigger signal, the LDSW module sends a second alarm signal to the gateway and uploads it to the platform. The platform controls the prompt module to execute the second flashing form.

[0012] The difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

[0013] According to a preferred implementation, in S1, the LDSW module is in a low power consumption operation state when the set time is less than T2, and is in a normal power consumption operation state when the set time is greater than or equal to T2.

[0014] According to a preferred embodiment, in S3, when the LDSW module is in a low power consumption operation state, step S3 is re-executed after a first interval time T11, and when the LDSW module is in a normal power consumption operation state, step S3 is re-executed after a second interval time T12, wherein the first interval time T11 is less than the second interval time T12.

[0015] According to a preferred embodiment, in S2, the ID and location information of the nut are associated in the LDSW module, and the alarm signal issued by the LDSW module includes the ID and location information of the nut.

[0016] Correspondingly, such as Figure 2 As shown, the present invention also proposes a nut displacement identification system combined with LDSW technology, which is used to implement the above method, including:

[0017] A detection contact, provided on a contact slot of the nut, for sending a trigger signal to the LDSW module when the nut is loosened;

[0018] The LDSW module is installed on the contact slot of the nut and is used to receive the trigger signal sent by the detection contact and send out an alarm signal;

[0019] A prompt module, mounted on the contact slot of the nut, for flashing and alarming;

[0020] Among them, the alarm signal of the LDSW module is sent to the gateway and uploaded to the platform, and the platform controls the prompt module to flash and issue an alarm to assist in locating the target nut.

[0021] According to a preferred implementation, the LDSW module determines whether a trigger signal sent by the detection contact is received at intervals T1.

[0022] According to a preferred embodiment, the detection contact is used to send a trigger signal to the LDSW module according to the range of the applied pressure of the nut, and the trigger signal includes a first trigger signal and a second trigger signal.

[0023] According to a preferred embodiment, the prompt module executes a first flickering form or a second flickering form, and the difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

[0024] By continuously monitoring the loose state of the nut, the nut's state change is automatically detected and responded to quickly, which helps prevent potential structural failures and safety accidents. The LDSW module has two-way low-power communication, supports remote command control and real-time feedback, and the flashing and alarm of the prompt module provide visual and auditory assistance to improve equipment maintenance efficiency. The identification system is installed above the nut, which is easy to install and has good identification effect. It has low power consumption requirements and only needs to be powered by button batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a flow chart of a nut displacement determination method combined with LDSW technology of the present invention.

[0026] Figure 2 This is a composition diagram of a nut displacement discrimination system combined with LDSW technology of the present invention. DETAILED DESCRIPTION

[0027] Loosening of nuts is a very common safety hazard in mechanical equipment and various engineering structures. It brings certain risks to the equipment or structure and affects stability and safety.

[0028] At present, the detection and confirmation of loose nuts still largely rely on the traditional method of manual inspection, which requires workers to check each nut one by one, through visual observation, hand feeling judgment or the use of simple tools to assist in detection. This method is not only time-consuming and laborious, but also difficult to meet the needs of rapid response and efficient operation and maintenance, especially when facing large-scale mechanical equipment or complex engineering structures, due to the large number of nuts and their wide distribution, and the accuracy of manual inspection is also difficult to guarantee.

[0029] In view of this, the present invention proposes a nut displacement judgment method and system combined with LDSW (Low Duty Cycle Smart Wireless, ultra-low duty cycle intelligent wireless communication technology) to achieve precise positioning of loose nuts.

[0030] Specifically, Figure 1 As shown, the present invention proposes a nut displacement determination method combined with LDSW technology, comprising the following steps:

[0031] S1: a discrimination system is arranged above the nut, wherein the discrimination system integrates a detection contact, an LDSW module and a prompt module, wherein the detection contact is used to send a trigger signal to the LDSW module when the nut is loose;

[0032] S2: Associating the ID and position information of the nut;

[0033] S3: The loose state of the nut is monitored by the detection contact. When the detection contact sends a trigger signal to the LDSW module, the LDSW module sends an alarm signal to the gateway and executes step S4. If the detection contact does not send a trigger signal to the LDSW module, step S3 is executed again after an interval time T1.

[0034] S4: The gateway receives the alarm signal from the LDSW module and uploads it to the platform, and the platform controls the prompt module to flash and sound an alarm to assist in locating the target nut.

[0035] Each nut is assigned a unique ID, which is stored together with the location information of the nut installation. In this way, when looseness is detected, the system can quickly identify which nut it is and determine its location. The detection contacts continuously monitor the loose state of the nut. When the looseness of the nut causes the detection contacts to open and send a trigger signal, this signal will be transmitted to the LDSW module. After receiving the trigger signal, the LDSW module will immediately send an alarm signal to the gateway and platform. If the detection contact does not send a trigger signal within the set interval time T1, the system will re-execute step S3 and continue to monitor the nut status. After receiving the alarm signal from the LDSW module, the gateway will respond immediately. Based on the nut ID and location information in the alarm signal, the platform controls the prompt module associated with the nut to start flashing.

[0036] During specific settings, in order to improve the reliability of the system, multiple detection contacts can be set to ensure that looseness at different angles and positions can be detected.

[0037] The gateway can be connected to a larger monitoring platform to enable remote monitoring and control, and allows users to view the nut status in real time through a mobile app or web interface.

[0038] By continuously monitoring the looseness of the nut, it automatically detects changes in the nut's state and responds quickly, helping to prevent potential structural failures and safety accidents. The LDSW module has two-way low-power communication, supports remote command control and real-time feedback, and the flashing and alarm of the prompt module provide visual and auditory assistance to improve equipment maintenance efficiency.

[0039] Furthermore, in S1, when the detection contact detects that the applied pressure of the nut is greater than F1, the detection contact sends a first trigger signal to the LDSW module, and when the detection contact detects that the applied pressure of the nut is greater than F2, the detection contact sends a second trigger signal to the LDSW module, wherein F1 is less than F2.

[0040] The detection contact uses a pressure sensor, which can accurately measure the tightening force applied by the nut on the discrimination system and convert it into a trigger signal to transmit to the LDSW module.

[0041] Two pressure thresholds are set: F1 and F2, where F1 is smaller than F2. F1 represents the beginning of loosening, while F2 represents the increasing degree of loosening, indicating that the risk of the nut loosening is increasing.

[0042] The setting values ​​of F1 and F2 should be reasonably selected according to the material properties of the nut, the working conditions of the connector and the application environment to ensure that the nut always remains within the safe range under normal working conditions.

[0043] When the detection contact detects that the pressure of the nut is greater than F1, the contact will send a first trigger signal to the LDSW module. This signal indicates that the tightening state of the nut is in a warning state and needs to be checked; if the detection contact further detects that the pressure of the nut increases to F2, the contact will send a second trigger signal to the LDSW module. This signal indicates that the tightening state of the nut is in a dangerous state and immediate measures must be taken. After receiving the first trigger signal, the LDSW module records the current nut ID and location information, and can optionally send a warning message to the gateway to prompt maintenance personnel to pay attention to the status of the nut. When the second trigger signal is received, the LDSW module will immediately send an emergency alarm signal to the gateway, requesting that the nut be handled first.

[0044] The platform can display different warning levels on the mobile application or web interface, using different colors or icons to distinguish the first trigger signal from the second trigger signal, making it easier for operators to quickly identify and respond.

[0045] Furthermore, when the LDSW module receives the first trigger signal, the LDSW module sends a first alarm signal to the gateway, which is uploaded to the platform by the gateway, and the platform controls the prompt module to execute the first flashing form.

[0046] When the LDSW module receives the second trigger signal, the LDSW module sends a second alarm signal to the gateway and uploads it to the platform. The platform controls the prompt module to execute the second flashing form.

[0047] The difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

[0048] After the platform receives the first alarm signal, the control prompt module executes the first flashing form. This flashing form can be achieved by a lower flashing frequency and / or a specific color (such as yellow) to remind the operator to pay attention to the tightening state of the nut. After the platform receives the second alarm signal, the control prompt module executes the second flashing form. This flashing form can be achieved by a higher flashing frequency and / or a different color (such as red) to warn the operator that the tightening state of the nut is very urgent and needs to be dealt with immediately.

[0049] In a preferred embodiment, the frequency of the first flashing pattern can be set to flash 1-2 times per second, and the frequency of the second flashing pattern can be set to flash 3-4 times per second to distinguish the urgency of the alarm.

[0050] The platform can also display corresponding alarm information on the user interface, including alarm level, nut ID, location information and recommended actions. At the same time, all alarm events and corresponding response measures are recorded and archived for subsequent maintenance and analysis.

[0051] Furthermore, in S1, the LDSW module is in a low power consumption operation state when the setting time is less than T2, and is in a normal power consumption operation state when the installation time is greater than or equal to T2. When the LDSW module is in the low power consumption operation state, step S3 is re-executed after a first interval time T11, and when the LDSW module is in the normal power consumption operation state, step S3 is re-executed after a second interval time T12, wherein the first interval time T11 is less than the second interval time T12.

[0052] Soon after the system setup phase, that is, when the initial time after the detection contacts, LDSW module and prompt module are installed is less than T2, the nuts are often in a relatively tight state due to their own characteristics. For this reason, each module will be set to a low-power operation state. This state can reduce energy consumption and extend the use time.

[0053] The setting value of T2 should be reasonably selected according to the material properties of the nut, the working conditions of the connector and the application environment to ensure that the nut always remains within the safe range under normal working conditions.

[0054] Specifically, the LDSW module has a built-in timer to track the time from the start of the setting.

[0055] Furthermore, a storage function is built into the LDSW module for storing the unique ID and corresponding location information of each nut, and the alarm signal emitted by the LDSW module includes the ID and location information of the nut.

[0056] Accordingly, the present invention proposes a nut displacement identification system combined with LDSW technology to implement the above method, including:

[0057] A detection contact, provided on a contact slot of the nut, for sending a trigger signal to the LDSW module when the nut is loosened;

[0058] The LDSW module is installed on the contact slot of the nut and is used to receive the trigger signal sent by the detection contact and send out an alarm signal;

[0059] A prompt module, mounted on the contact slot of the nut, for flashing and alarming;

[0060] Among them, the alarm signal of the LDSW module is sent to the gateway and uploaded to the platform, and the platform controls the prompt module to flash and issue an alarm to assist in locating the target nut.

[0061] The LDSW module determines whether a trigger signal sent by the detection contact is received at intervals T1.

[0062] The detection contact is used to send a trigger signal to the LDSW module according to the range of the applied pressure of the nut, and the trigger signal includes a first trigger signal and a second trigger signal.

[0063] The prompt module executes a first flickering form or a second flickering form, and the difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

[0064] The above is a detailed introduction to a nut displacement discrimination method and system combined with LDSW technology provided in an embodiment of the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referenced 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 description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0065] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0066] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Claims

1. A method for determining nut displacement in combination with LDSW technology, characterized in that: The following steps are involved: S1: a discrimination system is arranged above the nut, wherein the discrimination system integrates a detection contact, an LDSW module and a prompt module, wherein the detection contact is used to send a trigger signal to the LDSW module when the nut is loose; S2: Associating the ID and position information of the nut; S3: The loose state of the nut is monitored by the detection contact. When the detection contact sends a trigger signal to the LDSW module, the LDSW module sends an alarm signal to the gateway and executes step S4. If the detection contact does not send a trigger signal to the LDSW module, step S3 is executed again after an interval time T1. S4: The gateway receives the alarm signal from the LDSW module and uploads it to the platform, and the platform controls the prompt module to flash and sound an alarm to assist in locating the target nut.

2. The nut displacement determination method combined with LDSW technology according to claim 1 is characterized in that: In S1, when the detection contact detects that the applied pressure of the nut is greater than F1, the detection contact sends a first trigger signal to the LDSW module, and when the detection contact detects that the applied pressure of the nut is greater than F2, the detection contact sends a second trigger signal to the LDSW module, wherein F1 is less than F2, and the applied pressure refers to the pressure applied by the nut on the detection contact.

3. The nut displacement determination method combined with LDSW technology according to claim 2 is characterized in that: When the LDSW module receives the first trigger signal, the LDSW module sends a first alarm signal to the gateway and uploads it to the platform. The platform controls the prompt module to execute a first flashing form. When the LDSW module receives the second trigger signal, the LDSW module sends a second alarm signal to the gateway and uploads it to the platform. The platform controls the prompt module to execute the second flashing form. The difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

4. The nut displacement determination method combined with LDSW technology according to claim 1 is characterized in that: In S1, the LDSW module is in a low power consumption operation state when the set time is less than T2, and is in a normal power consumption operation state when the set time is greater than or equal to T2.

5. The nut displacement determination method combined with LDSW technology according to claim 4 is characterized in that: In S3, when the LDSW module is in a low power consumption operation state, step S3 is re-executed after a first interval time T11; when the LDSW module is in a normal power consumption operation state, step S3 is re-executed after a second interval time T12, wherein the first interval time T11 is less than the second interval time T12.

6. The nut displacement determination method combined with LDSW technology according to claim 1 is characterized in that: In S2, the ID and location information of the nut are associated in the LDSW module, and the alarm signal issued by the LDSW module includes the ID and location information of the nut.

7. A nut displacement identification system combined with LDSW technology, powered by a button battery, characterized in that: include: A detection contact, provided on a contact slot of the nut, for sending a trigger signal to the LDSW module when the nut is loosened; The LDSW module is installed on the contact slot of the nut and is used to receive the trigger signal sent by the detection contact and send out an alarm signal; A prompt module, mounted on the contact slot of the nut, for flashing and alarming; Among them, the alarm signal of the LDSW module is sent to the gateway and uploaded to the platform, and the platform controls the prompt module to flash and issue an alarm to assist in locating the target nut.

8. The nut displacement identification system combined with LDSW technology according to claim 7 is characterized in that: The LDSW module determines whether a trigger signal sent by the detection contact is received at intervals T1.

9. The nut displacement identification system combined with LDSW technology according to claim 7, characterized in that: The detection contact is used to send a trigger signal to the LDSW module according to the range of the applied pressure of the nut, and the trigger signal includes a first trigger signal and a second trigger signal.

10. The nut displacement identification system combined with LDSW technology according to claim 7, characterized in that: The prompt module executes a first flickering form or a second flickering form, and the difference between the first flickering form and the second flickering form lies in the difference in flickering frequency and / or flickering color.

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