Data synchronization charging bin for wireless sensor network
Through the design of the data synchronization charging chamber, the wireless sensor network has solved the problems of high energy consumption, large storage pressure and inaccurate time when monitoring mechanical equipment, and achieved fast charging, data collection and time synchronization of wireless sensors, supporting in-depth analysis and fault location of equipment.
Patent Information
- Application Number
- CN202422351956.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When monitoring wideband vibration and noise signals of mechanical equipment, wireless sensor networks have problems such as high energy consumption, high storage pressure, cumbersome battery replacement and inaccurate system time, making it difficult to quickly collect and synchronize data.
A data synchronization charging chamber is designed, and a magnetic connector is used to realize the charging and communication of wireless sensors. It is equipped with an ARM main control module, a Beidou timer module and a storage module. It is connected to the upper computer through a gigabit network interface to realize centralized data collection, charging and time synchronization.
It realizes fast charging and data collection of wireless sensor network nodes, ensures accurate system time, reduces point-to-point data copy time, and supports in-depth analysis and fault location.
Smart Images
Figure CN223125019U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wireless sensor integration device, in particular to a data synchronization charging bin, which can realize centralized export of data of multiple nodes in a wireless sensor network, clock synchronization and synchronous charging. Background Art
[0002] With the development of technology and the improvement of automation level, higher and higher requirements are put forward for the stability and reliability of engineering equipment. In engineering applications, wired-connected sensors are generally used to monitor the state of mechanical equipment to improve the stability of system operation. However, the wiring scheme of the wired-connected sensor monitoring needs to comprehensively consider the influence of the complex surrounding environment of the equipment, and has relatively strict requirements for the installation environment. Due to the limitation of the cable, it is difficult to deploy the wired sensor safely and reliably near rotating equipment or in narrow and enclosed spaces. In addition, the quality of the cable itself and the stability of the wiring scheme are directly related to whether the sensor can monitor effectively for a long time.
[0003] In view of the above problems existing in the wired sensor, in recent years, a solution of constructing a distributed wireless communication wireless sensor network (WSNs) has been proposed. The wireless sensor network realizes real-time online monitoring of equipment through multiple intelligent sensor nodes, and has the advantages of flexible deployment and high dynamic expansion degree. Using the wireless sensor network can effectively reduce the cost and man-hours consumed by on-site wiring. The wireless sensor network node has a small volume and can be installed in a narrow and airtight space where wiring is difficult. Moreover, the characteristics of small size, distribution and relatively low cost of the wireless sensor greatly improve the flexibility and scalability of the equipment monitoring scheme, and can be applied to monitoring scenarios with a large number of equipment, a wide distribution range, large discreteness of measuring points and even frequent movement. At the same time, in the traditional wired sensor monitoring scheme, the core processor of the monitoring device centrally processes the data of multiple channel sensors accessed, and the pressure of the operation, communication and storage processes is concentrated on a single core processor. However, through the distributed wireless sensor network, each network node can perform parallel operation processing to achieve load balancing.
[0004] Due to volume limitations, wireless sensor network nodes usually use batteries with limited capacity to maintain system power supply, and accordingly their performance and communication bandwidth are subject to certain constraints. Therefore, early wireless sensor networks were mostly applied to measure slow-changing signals with extremely small data volumes such as temperature and humidity. However, monitoring mechanical equipment through a wireless sensor network requires collecting and analyzing dynamic signals such as broadband vibration and noise. Therefore, there are still the following key problems in realizing the state monitoring of mechanical equipment based on a wireless sensor network:
[0005] To achieve the acquisition of dynamic signals such as high-frequency vibration and noise, it is necessary to increase the sampling rate of wireless sensor nodes. As a result, the computing, storage, and communication loads of each node increase, and accordingly, the power consumption and storage pressure of the overall monitoring system increase significantly. This significantly shortens the working duration supported by the battery with a limited capacity originally, and it is quite cumbersome to replace the battery for each wireless sensor node regularly. Therefore, solutions to the energy consumption and storage problems of wireless sensor networks for high-speed acquisition need to be sought.
[0006] A certain amount of local storage space is reserved inside the wireless sensor node. Due to the limited communication bandwidth of the wireless sensor network, only key feature information is usually transmitted between sensor nodes in the long-term monitoring state. The reserved local storage can be used to cache the data that has not been successfully uploaded during communication congestion, and store the raw data for a certain period at a configurable time interval for in-depth data analysis. However, due to the large amount of vibration and noise acquisition data and the large number of network nodes, how to quickly collect the large amount of data stored in the wireless sensor network has become a problem to be solved.
[0007] The wireless sensor node has the function of collecting at fixed time intervals, and the data stored in the wireless sensor node will record the system time at the time of data acquisition as a time stamp. Therefore, the accuracy of the internal system time of the wireless sensor node during long-term operation is crucial, and it is necessary to achieve the system time calibration and synchronization of each node in the wireless sensor network. Summary of the Invention
[0008] The utility model aims to provide a data synchronization charging bin for a wireless sensor network, which is used to solve the key problems existing in the application of wireless sensor networks in scenarios of broadband dynamic signals such as vibration and noise, and to achieve the rapid collection and centralized charging of data of wireless sensor network nodes, while completing the system time calibration and synchronization of each node in the wireless sensor network.
[0009] To achieve the above objectives, the technical solution of the utility model is as follows:
[0010] A data synchronization charging bin for a wireless sensor network, comprising a data synchronization bin body structure and a data synchronization control system. Multiple grooves are provided on the data synchronization bin body structure of the data synchronization bin, and each groove is used to place a wireless sensor. The charging and communication interfaces of the wireless sensor adopt the form of a magnetic connector. The outer shell of the data synchronization bin body is equipped with a display screen, control buttons, and indicator lights. The display screen is used to display the battery level, remaining storage capacity, and data export progress of each inserted wireless sensor. The control buttons are used to enable the wireless sensor to export data. The data synchronization bin is externally provided with a gigabit network communication interface for connecting to a host computer and a server terminal, and data transfer or data interception and analysis are controlled through the host computer and the server terminal, and the indicator lights are used to indicate whether the wireless sensor node is fully charged and whether the data export is completed. The data synchronization control module includes an ARM main control module, a storage module, a communication module, a Beidou timing module, and a power management module. Among them, the data synchronization bin uses an external 220V power supply for power supply. The power management module is used to identify whether there is current output from each charging power supply of the data synchronization bin to the wireless sensor load to judge the access situation of the wireless sensor. The ARM main control module is used to read the access of each wireless sensor node and use the Beidou timing module to send a PPS second pulse synchronization signal and the absolute time information corresponding to the second pulse signal to the accessed wireless sensor node, so as to realize the time synchronization of the wireless sensor node. The communication module is communicatively connected to the accessed wireless sensor node, the host computer, and the server terminal through a PHY chip. The storage module consists of multiple solid-state drives configured as a disk array in the raid5 form, and a part of the redundant space is used to ensure data security.
[0011] Further, the wireless sensor is placed in the groove of the data synchronization bin body through a guide rail positioning structure, which is used to ensure the accurate and reliable fixation of the installation position of the wireless sensor. At the same time, the guide rail structure is used to achieve active anti-fooling to prevent the reverse connection of the charging and communication interfaces of the wireless sensor.
[0012] Further, the magnetic connector form adopted by the charging and communication interfaces of the wireless sensor is a 6-pin interface, where 2 pins are used for power charging and 4 pins are used for 100M network communication.
[0013] Further, the indicator light has three colors. Among them, after the wireless sensor is accessed, both the charging indicator light and the data export indicator light are red. When the charging is completed, the charging indicator light turns green, and when the data synchronization is completed, the indicator light turns blue.
[0014] Further, when the host computer and the server terminal are accessed, the ARM main control module is connected to the host computer and the server terminal through the communication module for data transfer, and the host computer and the server terminal are used to analyze the data of the monitored points and the monitored time period.
[0015] Further, when the user controls the button to start the wireless sensor node for data export, a network communication connection is established between the ARM main control module and the wireless sensor node, which is used to request the stored measurement data to be written into the storage module.
[0016] Further, the data synchronization control module has a storage synchronization database that can be synchronized according to time series and different measurement points.
[0017] Further, the data synchronization control module is connected to the host computer for management and data analysis.
[0018] Further, the data synchronization control module is connected to the display screen, which is used to display the long-term trend spectrum of the speed frequency value and the main frequency amplitude characteristic signal recorded by each wireless sensor measurement point.
[0019] The beneficial effects of the present utility model are as follows:
[0020] 1. According to the present utility model, according to different parameters such as the sampling frequency, acquisition duration, acquisition interval, and acquisition characteristic information set by the wireless sensor node, the wireless sensor node for collecting dynamic signals such as high-frequency vibration and noise has a high power consumption and will issue a low battery warning after a period of time. At this time, multiple wireless sensors can be uniformly charged through the data synchronization exchange bin, which can avoid charging or replacing the battery for each node one by one.
[0021] 2. According to the present utility model, the data synchronization bin can be used to synchronously export the original data stored inside multiple wireless sensors connected to the bin, which can avoid point-to-point data copying, effectively reduce the time consumed for collecting data in the wireless sensor network, and the exported data is with a time stamp and the ID of the wireless sensor network node, which can correspond the stored data with the measurement time and the measurement point position, and can collect more abundant original data and more characteristic information, providing data support for further in-depth analysis of the mechanical equipment monitored by the wireless sensor network.
[0022] 3. According to the present utility model, after the wireless sensor is connected to the data synchronization bin, the remaining battery power and remaining storage space of the sensor can be displayed through the display screen on the data synchronization bin, and during the charging and data export process of the wireless sensor, the display screen can display the charging and data export progress in real time, and at the same time, it can be observed whether the charging and data export are completed through the indicator light.
[0023] 4. According to the present utility model, the data synchronization charging bin can be connected to the host computer through a wired network. When the monitoring system finds that key characteristics such as the vibration intensity of a certain equipment are abnormal, the host computer software can be used to select the concerned measurement points and time periods, and intercept the original data near the abnormal time point for further analysis, which can effectively help to locate the cause of the equipment failure.
[0024] 5. According to the present utility model, the system time of the wireless sensor node will deviate with the long-term operation of the node. The data synchronization charging bin can use the Beidou timing module to correct the system time deviation of the wireless sensor. When the wireless sensor is connected to the data synchronization charging bin, the charging bin will automatically send a second pulse synchronization signal and synchronization time information, so as to realize the stable regular acquisition function of the wireless sensor network, accurately record the data timestamp, and display the result on the display screen after the time calibration is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is the front view of the external shape composition of the data synchronization charging bin of the present utility model;
[0026] Figure 2 is Figure 1 the top view of
[0027] Figure 3 is the schematic diagram of the function interface of the data synchronization charging bin of the present utility model;
[0028] Figure 4 is the program logic block diagram of the data synchronization charging bin of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0030] As Figure 1 , shown in FIG. 2, a data synchronization charging bin for a wireless sensor network of the present utility model includes: a data synchronization bin body structure and a data synchronization control module.
[0031] Data synchronization bin body structure: A plurality of grooves (wireless sensor node access interfaces 3) are opened on the data synchronization bin body. Each groove is used to place a wireless sensor. The guide rail positioning structure in the groove ensures that the wireless sensor is placed in the accurate position and reliably fixed. At the same time, the active anti-fooling design is realized by using this guide rail structure to prevent the reverse connection of the charging and communication interfaces of the wireless sensor. The charging and communication interfaces of the wireless sensor adopt the form of a magnetic connector 4, which is a 6-pin interface. Among them, 2 pins are used for power charging, and 4 pins are used for 100M Ethernet communication. The interface definition is shown in Table 1.
[0032] The outer shell of the data synchronization bin body is equipped with a display screen 1, control buttons 5 and indicator lights (including a charging status indicator light 6 and a data synchronization status indicator light 7). The display screen 1 is used to display the power of each placed wireless sensor, the remaining storage capacity and the data export progress. The control buttons are used to enable the wireless sensor to export data.
[0033] The data synchronization bin is externally provided with a Gigabit network communication interface 2 for connecting to terminals such as PCs and servers. Data transfer or data interception analysis can be carried out through the control of the host computer. The indicator lights are used to indicate whether the charging of the wireless sensor node is completed and whether the data export is completed. After the wireless sensor is connected, both the charging indicator light and the data export indicator light are red. When the charging is completed, the charging indicator light turns green. After the data synchronization is completed, the indicator light turns blue. The schematic diagram of the external shape composition and the functional interface schematic diagram of the data synchronization charging bin are as follows Figure 1 , 2 and Figure 3 shown.
[0034] Table 1 Pin definition of the magnetic contact interface
[0035]
[0036] The data synchronization control module includes an ARM main control module, a storage module, a communication module, a Beidou timing module, and a power management module. The data synchronization bin uses an external 220V power supply for power supply. The power management module of the data synchronization bin judges the access situation of the wireless sensor by identifying whether there is current output from each charging power supply to the wireless sensor load. After the ARM main control module reads the access of a wireless sensor node, it uses the Beidou timing module to send a PPS second pulse synchronization signal and the absolute time information corresponding to the second pulse signal to the accessed wireless sensor node, so as to realize the time synchronization of the wireless sensor node. The communication module of the data synchronization bin communicates with the accessed wireless sensor node and terminals such as PCs through a PHY chip. When the user controls the button to start the data export of the wireless sensor node, the ARM main control module establishes a network communication with the wireless sensor node, requests the stored measurement data, and then writes the data into the storage module. The storage module of the data synchronization bin consists of multiple solid-state drives to form a disk array in the raid5 form, and uses a part of the redundant space to ensure the security of the data. When terminals such as PCs are accessed by the host computer, the ARM main control module can transfer the data through the communication module, and can analyze the data of the concerned measurement points and the concerned time period by using the host computer software.
[0037] According to the hardware function module design of the data synchronization bin, the control logic block diagram of the data synchronization control module is as shown in the appendix Figure 4 shown. Each node in the wireless sensor network corresponds to different measurement points. The monitoring system background establishes a mapping between the MAC address of the wireless sensor node and the measurement point location as the hardware ID of the node. Therefore, when the data synchronization bin exports data, the data is bound to the node MAC address, so that the measurement point corresponding to the sensor can be identified through this information.
[0038] A synchronization database is established in the data synchronization control module of the data charging bin. The database is stored according to the time series and different measurement points, which facilitates data management and query. During the process of obtaining data and writing it into the database, a data verification and encrypted transmission mechanism is adopted to ensure the security and reliability of the obtained data.
[0039] The data synchronization control module of the data charging bin can be connected to the host computer for management and data analysis. The operation program in the host computer requires user authentication to ensure that only authorized users can operate the data exchange bin. Moreover, the host computer assigns different permissions according to the user roles. For example, an administrator can perform system settings, delete the data stored in the sensor, update the operation program of the data exchange bin, etc., while an ordinary user can only view data. The host computer will generate detailed logs such as the access situation of wireless sensors, data synchronization records, system operations, and abnormal situations.
[0040] The data synchronization control module of the data charging bin can display the long-term trend graphs of characteristic signals such as the speed through-frequency value and the main frequency amplitude recorded by each wireless sensor measurement point through a display screen. Users can screen out representative or analytically valuable time series data according to the trend graphs, and then export the time series data within the screened data distribution time period, thus effectively ensuring the practicality of the extracted data.
[0041] Specific application examples:
[0042] 1. When conducting a distributed layout of a wireless sensor network, first, acquisition parameters such as the sampling frequency, sampling duration, and acquisition interval set for each sensor node are set. According to the different set acquisition parameters, the duration that the battery supports the online monitoring of the wireless sensor node will change, and the duration that the internal storage of the wireless sensor can store monitoring data without overwriting will also be different. When the battery power is low and the remaining storage space of the wireless sensor is insufficient, the node will send a reminder message to application terminals such as mobile phones and cloud platforms connected to the wireless sensor network. Generally, the power and storage space of wireless sensor nodes with unified set parameters will issue a warning after a basically consistent duration. When receiving the warning, connect these wireless sensors to the data synchronization charging bin. The charging bin will light up the indicator lights of the corresponding access grooves, automatically charge and synchronize the time, and display the remaining battery power and storage space of the connected wireless sensor nodes on the display screen.
[0043] After connecting the sensor nodes, the data export can be started through the control button. The display screen will show the data export progress, and the charging bin will store the data of each wireless sensor in the local database for users to transfer and query. After the data export is completed, the user can clear the data stored in each sensor node through management.
[0044] 2. When a wireless sensor node determines that a certain device is operating abnormally, it will also send warning messages to application terminals such as mobile phones and cloud platforms. At this time, all the measuring points arranged on the device can be connected to the data synchronization charging bin, and terminals such as PCs can be connected to the synchronization charging bin through network cables to intercept and export the original data before and after the abnormal moment for analysis. By analyzing the trend changes of the characteristic line spectrum over time, as well as the similarities and differences between the data of multiple wireless sensor measuring points on the device, it is possible to assist in completing the fault location of the device.
Claims
1. A data synchronization charging bin for a wireless sensor network, characterized in that: It includes the data synchronization warehouse body structure and the data synchronization control system. Multiple grooves are opened on the data synchronization warehouse body structure, and each groove is used to place a wireless sensor. The charging and communication interface of the wireless sensor adopts the form of a magnetic connector. The outer shell of the data synchronization warehouse body is equipped with a display screen, control buttons and indicator lights. The display screen is used to display the battery power of each inserted wireless sensor, the remaining storage capacity and the data export progress. The control buttons are used to enable the wireless sensor to export data. The data synchronization warehouse is externally provided with a gigabit network communication interface for connecting to the upper computer and the server terminal, and controlling data transfer or data interception and analysis through the upper computer and the server terminal, and indicating whether the wireless sensor node is fully charged and whether the data export is completed through the indicator lights. The data synchronization control module includes an ARM main control module, a storage module, a communication module, a Beidou time service module and a power management module. Among them, the data synchronization warehouse uses an external 220V power supply for power supply. The power management module is used to identify whether there is current output from each charging power supply of the data synchronization warehouse to the wireless sensor load to judge the access situation of the wireless sensor. The ARM main control module is used to read the access of each wireless sensor node and use the Beidou time service module to send the PPS second pulse synchronization signal and the absolute time information corresponding to the second pulse signal to the accessed wireless sensor node, so as to realize the time synchronization of the wireless sensor node. The communication module is communicatively connected to the accessed wireless sensor node, the upper computer and the server terminal through a PHY chip. The storage module consists of multiple solid-state drives to form a disk array in the raid5 form, and a part of the redundant space is used to ensure the security of the data.
2. The data synchronization charging bin for a wireless sensor network according to claim 1, wherein: The wireless sensor is placed in the groove of the data synchronization warehouse body through the guide rail positioning structure, which is used to ensure the accurate and reliable fixation of the installation position of the wireless sensor. At the same time, the guide rail positioning structure is used to achieve active anti-fooling to prevent the reverse connection of the charging and communication interfaces of the wireless sensor.
3. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: The charging and communication interface of the wireless sensor adopts the form of a magnetic connector, which is a 6-pin interface. Among them, 2 pins are used for power charging, and 4 pins are used for 100M network communication.
4. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: The indicator light has three colors. Among them, the charging indicator light and the data export indicator light are both red after the wireless sensor is accessed. After the charging is completed, the charging indicator light turns green. After the data synchronization is completed, the indicator light turns blue.
5. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: When the upper computer and the server terminal are accessed, the ARM main control module is connected to the upper computer and the server terminal through the communication module for data transfer, and the upper computer and the server terminal are used to analyze the data of the concerned measurement points and the concerned time period.
6. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: When the user presses the control button to start the wireless sensor node to export data, a network communication connection is established between the ARM main control module and the wireless sensor node, which is used to request the stored measurement data to be written into the storage module.
7. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: The data synchronization control module has a storage synchronization database that can be synchronized according to the time series and different measurement points.
8. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: The data synchronization control module is connected to the upper computer for management and data analysis.
9. The data synchronization charging bin for a wireless sensor network according to claim 1, characterized in that: The data synchronization control module is connected to the display screen and is used to display the long-term trend spectrograms of the speed through-frequency values and the main frequency amplitude characteristic signals recorded by each wireless sensor measurement point.