Extensible industrial internet of things data acquisition terminal

Abstract

The application relates to the field of Internet of Things intelligent terminals, and discloses an extensible industrial Internet of Things data acquisition terminal. In the application, the terminal host is a cuboid metal shell, the surface of the shell is provided with heat dissipation fins, and an extension installation groove is reserved in the interior of the terminal host; a core control module is arranged in the interior of the terminal host and comprises a processor and an industrial-grade storage chip; a basic data acquisition module is electrically connected with the core control module; the basic data acquisition module comprises an analog quantity acquisition unit and a digital quantity acquisition unit; an extension interface module is arranged on the side surface of the terminal host and comprises a slot and an Ethernet interface; a power supply module is a wide-voltage input power supply; the metal shell and the heat dissipation fins guarantee the durability and heat dissipation performance in an industrial environment; the high-performance processor and the storage chip of the core control module realize rapid analysis and storage of multiple types of data; and the basic data acquisition module covers common analog quantity and digital quantity signals in an industrial scene and meets basic data acquisition requirements.

Description

Technical Field

[0001] This application belongs to the field of IoT smart terminal technology, specifically a scalable industrial IoT data acquisition terminal. Background Technology

[0002] With the continuous development of the Internet of Things (IoT) field, more and more IoT smart terminals are being used. IoT smart terminals are intermediate devices between the sensor network layer and the transmission network layer, and are key devices in the IoT. Through the conversion and collection by IoT smart terminals, various externally sensed data can be gathered and processed, and then transmitted to the Internet through various network interfaces.

[0003] However, common data acquisition terminals cannot be expanded, and therefore cannot meet the acquisition, processing, and transmission needs of different industrial scenarios. Utility Model Content

[0004] The purpose of this application is to provide a scalable industrial IoT data acquisition terminal in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: A scalable industrial IoT data acquisition terminal includes a terminal host, a core control module, a basic data acquisition module, an expansion interface module, and a power supply module. The terminal host is a rectangular metal shell with heat dissipation fins on its surface, and an expansion mounting slot is reserved inside the terminal host. The core control module is located inside the terminal host and includes a processor and an industrial-grade storage chip. The basic data acquisition module is electrically connected to the core control module and includes analog acquisition units and digital acquisition units. The expansion interface module is located on the side of the terminal host and includes a slot and an Ethernet interface. The power supply module is a wide-voltage input power supply and has a built-in protection circuit. The metal shell and heat dissipation fins ensure durability and heat dissipation in industrial environments. The high-performance processor and storage chip of the core control module enable rapid parsing and storage of multiple types of data. The basic data acquisition module covers common analog and digital signals in industrial scenarios, meeting basic data acquisition requirements. The expansion interface module reserves hardware interfaces for future functional upgrades. The wide-voltage power supply and protection circuit adapt to the unstable power supply environment in industrial sites, providing basic support for stable terminal operation.

[0006] In a preferred embodiment, the terminal host includes a wireless extension module. The wireless extension module is connected to the core control module via a slot. The surface of the wireless extension module is provided with a signal enhancement antenna, and the module has a built-in signal interference filtering circuit. Through the pluggable wireless extension module, the terminal can adapt to the wireless communication needs of different industrial scenarios. The signal enhancement antenna and interference filtering circuit improve the wireless signal strength and stability, solve the problem of weak wireless signals and a lot of interference in industrial sites, and expand the terminal's wireless data acquisition capabilities.

[0007] In a preferred embodiment, the core control module includes a positioning unit and a precision time synchronization unit. The positioning unit adds geographical location tags to the collected data in the distributed industrial scenario, which facilitates subsequent data traceability and regional analysis, and improves the spatiotemporal accuracy of industrial data collection.

[0008] In a preferred embodiment, the terminal host housing is made of stainless steel, and a fluororubber sealing ring is provided at the connection between the housing and the cover plate. The slots and interfaces of the expansion interface module are equipped with dustproof and waterproof plugs. The bottom of the terminal host is provided with a shock-absorbing pad. The stainless steel housing makes the terminal resistant to dust and splashing liquid corrosion in industrial environments. The fluororubber sealing ring and the dustproof and waterproof plugs further enhance the sealing performance and prevent short circuit failures caused by water and dust entering the interface. The shock-absorbing pad reduces the impact of equipment handling or workshop vibration on the internal modules, making it suitable for scenarios with severe vibration such as machining workshops and mines, and extending the service life of the terminal.

[0009] In a preferred embodiment, the core control module also incorporates an edge computing unit. This edge computing unit can perform data preprocessing, completing the data preprocessing tasks locally on the terminal, reducing the amount of data uploaded to the cloud and lowering the bandwidth usage cost of the Industrial Internet of Things. Outlier filtering prevents invalid data from interfering with cloud analysis, and feature extraction provides preprocessed data for scenarios such as equipment fault warnings, improving cloud analysis efficiency. Local storage of raw data facilitates subsequent data traceability and algorithm optimization, solving the problem of data loss when the cloud connection is interrupted in industrial scenarios.

[0010] In a preferred embodiment, the terminal host includes a sensor adapter expansion module, which is connected to the basic data acquisition module via a slot. The sensor adapter expansion module covers scenarios such as industrial equipment status monitoring and environmental monitoring. The signal amplification circuit and calibration chip improve the accuracy of weak signal acquisition, solve the measurement error problem caused by sensor signal attenuation and drift in industrial scenarios, and meet the needs of high-precision industrial monitoring.

[0011] In a preferred embodiment, the front of the terminal host is provided with a human-machine interaction module, which includes a display screen and multiple buttons. The local human-machine interaction module can view real-time data and device status without connecting to the cloud, which facilitates on-site maintenance personnel to quickly troubleshoot problems. The emergency reset function avoids long-term data interruption caused by terminal crashes, ensuring the continuity of data collection. The visual prompts of abnormal alarm information enable maintenance personnel to detect equipment failures in a timely manner, shorten the fault response time, and improve the on-site operability and reliability of the terminal.

[0012] In a preferred embodiment, the power supply module includes a backup battery unit, the storage chip of the core control module has a dual-backup design, the analog acquisition unit of the basic data acquisition module has a redundant channel, the backup battery solves the problem of data acquisition interruption caused by temporary power outages in industrial sites, and ensures that critical data is not lost; the dual-backup storage chip and redundant acquisition channels avoid terminal failure caused by a single hardware failure, and the fault switching time is short.

[0013] In a preferred embodiment, the core control module also integrates a remote operation and maintenance unit, which can realize remote parameter configuration, fault diagnosis, and firmware upgrade. The terminal host is provided with a debugging serial port on its side. The remote operation and maintenance function can complete parameter configuration and fault diagnosis without the need for on-site personnel, reducing the operation and maintenance cost and difficulty in industrial sites. The breakpoint resume and firmware rollback functions avoid terminal bricking caused by upgrade failure, ensuring upgrade security. The local debugging serial port provides a convenient interface for complex fault diagnosis, balancing the efficiency of remote operation and maintenance with the flexibility of local debugging.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: In this application, compared with traditional fixed-function data acquisition terminals, a basic module and pluggable expansion module architecture is adopted. The wireless expansion module and sensor adapter expansion module can be flexibly combined through standardized slots. With wide voltage power supply and protection, a composite structure with scalable hardware and adaptable environment is formed. At the same time, edge computing unit and multiple transmission paths are integrated to meet the acquisition, processing and transmission needs of different industrial scenarios.

[0015] A full-link redundancy mechanism is built in the power supply, data acquisition, and data storage links, in conjunction with the remote operation and maintenance unit of the core control module. At the same time, the problem of data loss when the cloud connection is interrupted is solved through edge computing preprocessing and local storage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the industrial IoT data acquisition terminal of this application; Figure 2 This is a schematic diagram of the core control module and edge computing unit structure in this application; Figure 3 This is a schematic diagram illustrating the adaptation of extended interfaces and modules in this application; Figure 4 This is a schematic diagram of the power supply module and redundant backup structure in this application; Figure 5 This is a schematic diagram of the data acquisition and transmission process in this application.

[0017] The diagram shows the following components: 1. Terminal host; 11. Heat sink fins; 12. Expansion mounting slot; 13. Fluororubber sealing ring; 14. Shock-absorbing pad; 2. Core control module; 21. Processor; 22. Industrial-grade storage chip; 23. Positioning unit; 24. Time synchronization unit; 25. Edge computing unit; 26. Remote operation and maintenance unit; 3. Basic data acquisition module; 31. Analog acquisition unit; 32. Digital acquisition unit; 311. Redundant channel; 4. Expansion interface module; 41. Slot; 42. Ethernet interface; 43. Dustproof and waterproof plug; 5. Power supply module; 51. Wide voltage input power supply; 52. Protection circuit; 6. Wireless expansion module; 61. Signal enhancement antenna; 62. Signal interference filtering circuit; 7. Sensor adapter expansion module; 8. Human-machine interaction module; 9. Debug serial port. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example:

[0019] Reference Figure 1-5A scalable industrial IoT data acquisition terminal includes a terminal host 1, a core control module 2, a basic data acquisition module 3, an expansion interface module 4, and a power supply module 5. The terminal host 1 has a rectangular metal casing with heat dissipation fins 11 on its surface and a reserved expansion mounting slot 12 inside. The core control module 2 is located inside the terminal host 1 and includes a processor 21 and an industrial-grade memory chip 22. The basic data acquisition module 3 is electrically connected to the core control module 2 and includes an analog acquisition unit 31 and a digital acquisition unit 32. The expansion interface module 4 is located in the terminal host 1. On the side, the expansion interface module 4 includes a slot 41 and an Ethernet interface 42; the power supply module 5 is a wide-voltage input power supply 51, and the power supply module 5 has a built-in protection circuit 52; the metal casing and heat sink fins ensure durability and heat dissipation in industrial environments; the high-performance processor and storage chip of the core control module enable rapid parsing and storage of various types of data; the basic data acquisition module covers common analog and digital signals in industrial scenarios, meeting basic data acquisition needs; the expansion interface module reserves hardware interfaces for future function upgrades; the wide-voltage power supply and protection circuit adapt to the unstable power supply environment in industrial sites, providing basic support for stable terminal operation.

[0020] Reference Figure 1-5 The terminal host 1 includes a wireless expansion module 6, which is connected to the core control module 2 via a slot 41. The surface of the wireless expansion module 6 is provided with a signal enhancement antenna 61, and the module has a built-in signal interference filtering circuit 62. Through the pluggable wireless expansion module, the terminal can adapt to the wireless communication needs of different industrial scenarios. The signal enhancement antenna and interference filtering circuit improve the wireless signal strength and stability, solve the problem of weak wireless signal and interference in industrial sites, and expand the terminal's wireless data acquisition capabilities.

[0021] Reference Figure 1-4 The core control module 2 includes a positioning unit 23 and a precision time synchronization unit 24. The positioning unit adds geographical location tags to the collected data in the distributed industrial scenario, which facilitates subsequent data traceability and regional analysis, and improves the spatiotemporal accuracy of industrial data collection.

[0022] Reference Figure 1-4 The terminal host 1 has a stainless steel casing, and a fluororubber sealing ring 13 is provided at the connection between the casing and the cover plate. The slots 41 and interfaces 42 of the expansion interface module 4 are equipped with dustproof and waterproof plugs 43. The bottom of the terminal host 1 is equipped with a shock-absorbing pad 14. The stainless steel casing makes the terminal resistant to dust and splashing liquid corrosion in industrial environments. The fluororubber sealing ring and the dustproof and waterproof plugs further enhance the sealing performance and prevent short circuit failures caused by water and dust entering the interface. The shock-absorbing pad reduces the impact of equipment handling or workshop vibration on the internal modules, making it suitable for scenarios with severe vibration such as machining workshops and mines, and extending the service life of the terminal.

[0023] Reference Figure 1-3 The core control module 2 also has a built-in edge computing unit 25, which can perform data preprocessing. The edge computing unit completes the data preprocessing task locally on the terminal, reducing the amount of data uploaded to the cloud and reducing the bandwidth cost of industrial IoT. Outlier filtering avoids invalid data from interfering with cloud analysis, and feature extraction provides preprocessed data for scenarios such as equipment fault warning, improving the efficiency of cloud analysis. Local storage of raw data facilitates subsequent data traceability and algorithm optimization, solving the problem of data loss when the cloud connection is interrupted in industrial scenarios.

[0024] Reference Figure 1-4 The terminal host 1 includes a sensor adapter expansion module 7, which is connected to the basic data acquisition module 3 through a slot 41. The sensor adapter expansion module covers scenarios such as industrial equipment status monitoring and environmental monitoring. The signal amplification circuit and calibration chip improve the accuracy of weak signal acquisition, solve the measurement error problem caused by sensor signal attenuation and drift in industrial scenarios, and meet the needs of high-precision industrial monitoring.

[0025] Reference Figure 1 The front of the terminal host 1 is equipped with a human-machine interaction module 8, which includes a display screen and multiple buttons. The local human-machine interaction module can view real-time data and device status without connecting to the cloud, making it convenient for on-site maintenance personnel to quickly troubleshoot problems. The emergency reset function avoids long-term data interruption caused by terminal crashes, ensuring the continuity of data collection. The visual prompts of abnormal alarm information enable maintenance personnel to discover equipment failures in a timely manner, shorten the fault response time, and improve the on-site operability and reliability of the terminal.

[0026] Reference Figure 1-3 The power supply module 5 includes a backup battery unit 53, the storage chip 22 of the core control module 2 is designed with dual backup, the analog acquisition unit 31 of the basic data acquisition module 3 is equipped with a redundant channel 311, the backup battery solves the problem of data acquisition interruption caused by temporary power outages in industrial sites, and ensures that critical data is not lost; the dual backup storage chip and redundant acquisition channel avoid terminal failure caused by a single hardware failure, and the fault switching time is short.

[0027] Reference Figure 1-4The core control module 2 also integrates a remote operation and maintenance unit 26, which can realize remote parameter configuration, fault diagnosis and firmware upgrade. The terminal host 1 has a debugging serial port 9 on its side. The remote operation and maintenance function can complete parameter configuration and fault diagnosis without the need for on-site personnel, reducing the operation and maintenance cost and difficulty in industrial sites. The breakpoint resume and firmware rollback functions avoid the terminal becoming bricked due to upgrade failure, ensuring the security of the upgrade. The local debugging serial port provides a convenient interface for complex fault diagnosis, taking into account the efficiency of remote operation and maintenance and the flexibility of local debugging.

[0028] The implementation principle of the scalable industrial IoT data acquisition terminal embodiment of this application is as follows: First, select the expansion module according to the needs of the industrial scenario, install the wireless expansion module 6, and install the sensor adapter expansion module 7 for multi-physical quantity monitoring scenarios. Insert the expansion module into the slot 41 and tighten it. Configure the basic parameters through the touch screen 81 of the human-machine interaction module 8 or the cloud operation and maintenance platform: acquisition frequency, alarm threshold, data upload protocol and time synchronization cycle. Turn on the power supply module 5, the wide voltage power supply 51 supplies power to each module, the backup battery unit 53 automatically enters the standby state, and the terminal completes initialization.

[0029] The sensor collects physical quantity signals from the industrial site. After the signal is amplified by the signal amplification circuit 74 of the sensor adapter expansion module 7 and corrected by the calibration chip 75, it is transmitted to the basic data acquisition module 3. The analog quantity acquisition unit 31 converts the current signal and voltage signal into digital signal, and the digital quantity acquisition unit 32 directly reads the switch signal. All raw data is transmitted to the core control module 2, and the edge computing unit 25 starts preprocessing. The preprocessed data is temporarily stored in the buffer area, and the raw data is synchronously written to the dual backup storage chip 22.

[0030] If the external power supply is interrupted, the backup battery unit 53 of the power supply module 5 will automatically switch power supply, and the terminal will continue to collect data and store it locally. After the power supply is restored, the data will be retransmitted to the cloud. If the main channel of the basic data acquisition module 3 fails, the redundant channel 311 will automatically switch to ensure that the acquisition is uninterrupted. The operation and maintenance personnel can check the terminal status through the cloud operation and maintenance platform, remotely adjust the acquisition parameters, or initiate firmware upgrades. If a complex fault occurs, the on-site personnel can connect to the computer through the debugging serial port 9 to perform local firmware debugging and troubleshooting.

[0031] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A scalable industrial Internet of Things (IoT) data acquisition terminal, comprising a terminal host (1), a core control module (2), a basic data acquisition module (3), an expansion interface module (4), and a power supply module (5), characterized in that: The terminal host (1) is a rectangular metal shell with heat dissipation fins (11) on the surface of the shell. The terminal host (1) has an internal expansion mounting slot (12). The core control module (2) is located inside the terminal host (1) and includes a processor (21) and an industrial-grade memory chip (22). The basic data acquisition module (3) is electrically connected to the core control module (2). The basic data acquisition module (3) includes an analog acquisition unit (31) and a digital acquisition unit (32). The expansion interface module (4) is located on the side of the terminal host (1). The expansion interface module (4) includes a slot (41) and an Ethernet interface (42). The power supply module (5) is a wide voltage input power supply (51) and has a built-in protection circuit (52).

2. The scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The terminal host (1) includes a wireless extension module (6), which is connected to the core control module (2) via a slot (41). The wireless extension module (6) has a signal enhancement antenna (61) on its surface and a built-in signal interference filtering circuit (62).

3. The scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The core control module (2) includes a positioning unit (23) and a precision time synchronization unit (24).

4. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The casing of the terminal host (1) is made of stainless steel. A fluororubber sealing ring (13) is provided at the connection between the casing and the cover plate. The slot (41) and interface (42) of the expansion interface module (4) are equipped with dustproof and waterproof plugs (43). The bottom of the terminal host (1) is provided with a shockproof buffer pad (14).

5. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The core control module (2) also has a built-in edge computing unit (25), which can perform data preprocessing.

6. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The terminal host (1) includes a sensor adapter expansion module (7), which is connected to the basic data acquisition module (3) via a slot (41).

7. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The terminal host (1) has a human-computer interaction module (8) on the front, which includes a display screen and multiple buttons.

8. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The power supply module (5) includes a backup battery unit (53), the storage chip (22) of the core control module (2) is designed with dual backup, and the analog acquisition unit (31) of the basic data acquisition module (3) is equipped with a redundant channel (311).

9. A scalable industrial IoT data acquisition terminal as described in claim 1, characterized in that: The core control module (2) also integrates a remote operation and maintenance unit (26), which can realize remote parameter configuration, fault diagnosis and firmware upgrade. The terminal host (1) is provided with a debugging serial port (9) on the side.

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