Wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration

Abstract

The invention relates to a wireless sensing and control system based on Bluetooth Mesh and Modbus RTU / TCP integration. The wireless sensing and control system comprises at least one sensor, at least one wireless communication module and at least one wireless communication module, the virtual MODBUS TCP server is provided with at least three nodes of a Bluetooth Mesh architecture, and each node is in communication connection with the at least one sensor through an MODBUS RTU (Remote Terminal Unit); the handheld device is in communication connection with one node of the virtual MODBUS TCP server; and the sensor hub is in communication connection with the virtual MODBUS TCP server through an MODBUS TCP (Transmission Control Protocol). Therefore, the broadcast signal of the Bluetooth Mesh is used for receiving and transmitting the data from the non-electric switch and the non-electric sensor, and meanwhile, the MODBUS RTU data is converted and transmitted to the MODBUS TCP network, so that the wireless communication of a large-scale network is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless sensing and control, and in particular to a wireless sensing and control system based on integration of Bluetooth Mesh and MODBUS RTU / TCP. BACKGROUND

[0002] In industrial automation, building management systems, and Internet of Things applications, MODBUS RTU (industrial serial communication remote terminal unit) and MODBUS TCP (industrial serial communication transmission control protocol) are commonly used communication protocols responsible for transmitting and controlling various sensors and devices.

[0003] However, with the development of wireless technology and the increasing demand for applications, how to seamlessly integrate wireless technology into existing MODBUS systems has become a challenge. SUMMARY

[0004] The present application aims to provide a wireless sensing and control system based on integration of Bluetooth Mesh and MODBUS RTU / TCP, to achieve seamless integration of existing MODBUS systems and wireless technology. Through this system, data from wireless switches and wireless sensors can be received and transmitted using Bluetooth Mesh advertising signals (ADV signal, advertising signal), while MODBUS RTU data is converted and transmitted to the MODBUS TCP network. In addition, the system also includes a GATT Bearer (Generic Attribute Profile Bearer, Generic Attribute Profile Bearer), allowing handheld devices to access sensors or control nodes on the network through the GATT channel, providing a new wireless communication architecture through Bluetooth Mesh technology, enabling wireless communication in large-scale networks.

[0005] According to the above purpose, the present application provides a wireless sensing and control system based on integration of Bluetooth Mesh and MODBUS RTU / TCP, comprising: at least one sensor; a virtual MODBUS TCP server having at least three nodes with Bluetooth Mesh architecture, each node being communicatively connected to the at least one sensor through MODBUS RTU; a handheld device communicatively connected to one of the nodes of the virtual MODBUS TCP server; and a sensor hub (SensorHub) communicatively connected to the virtual MODBUS TCP server through MODBUS TCP.

[0006] In some embodiments, the nodes of the virtual MODBUS TCP server are EdgeRouters.

[0007] In some embodiments, the at least one sensor comprises a plurality of industrial sensors, which are communicatively connected to at least one node of the virtual MODBUS TCP server via MODBUS RTU.

[0008] In some embodiments, the at least one sensor further comprises a plurality of environmental sensors, which are communicatively connected to at least one node of the virtual MODBUS TCP server and can use energy harvesting technology.

[0009] In some embodiments, the wireless sensing and control system integrated with Bluetooth Mesh and MODBUS RTU / TCP further comprises a no-power switch, which is communicatively connected to at least one node of the virtual MODBUS TCP server via a broadcast signal.

[0010] In some embodiments, the handheld device is communicatively connected to one node of the virtual MODBUS TCP server via a Generic Attribute Profile Bearer (GATT Bearer).

[0011] In some embodiments, the sensor hub and the virtual MODBUS TCP server can be wirelessly connected via a Wi-Fi wireless infrastructure.

[0012] In some embodiments, the sensor hub and the virtual MODBUS TCP server can be wired via Power Over Ethernet (POE).

[0013] In some embodiments, the sensor hub is further communicatively connected to at least one information system, which can obtain sensing data of corresponding sensors via the sensor hub and the nodes of the virtual MODBUS TCP server.

[0014] In some embodiments, the output-to-input ratio of each EdgeRouter is 1:20.

[0015] Therefore, the wireless sensing and control system integrated with Bluetooth Mesh and MODBUS RTU / TCP has the following three innovations.

[0016] 1. Seamless integration of Modbus RTU and Modbus TCP: There is no wireless integration solution based on Bluetooth Mesh in the prior art. The wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application can seamlessly integrate the two by designing a specific network architecture and communication protocol.

[0017] 2. Combination of non-electric switches and sensors: The wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application receives and manages data from non-electric switches and sensors through Bluetooth Mesh broadcast signals, which cannot be achieved in existing MODBUS systems.

[0018] 3. Combination of handheld device GATT Bearer (Generic Attribute Profile Bearer): Direct communication and control between handheld devices and sensors and nodes on the network are achieved through the GATT channel, increasing the flexibility and operational convenience of the wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application.

[0019] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments listed below with reference to the accompanying drawings are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application. DETAILED DESCRIPTION

[0021] The advantages, features and technical methods of the present application will be described in more detail and more easily understood with reference to the exemplary embodiments and the accompanying drawings, and the present application can be implemented in different forms, so it should not be understood as being limited to the embodiments described herein. On the contrary, the embodiments provided for the skilled in the art will make the present disclosure more thorough and comprehensive and fully convey the scope of the present application, and the present application will be defined only by the appended claims.

[0022] In addition, the terms "comprise" and / or "comprise" refer to the presence of the described features, regions, whole, steps, operations, components and / or components, but do not exclude the presence or addition of one or more other features, regions, whole, steps, operations, components, components and / or combinations thereof.

[0023] To enable the Honorable Examiner to understand the content of the invention and the effects that can be achieved, the specific embodiments shown in the accompanying drawings are described in detail as follows.

[0024] Figure 1 The structure diagram of the wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application.

[0025] Please refer to Figure 1 The wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present application 10 includes at least one sensor, a virtual MODBUS TCP server 200, a handheld device 300, and a sensor hub 400.

[0026] The virtual MODBUS TCP server 200 can have at least three nodes of Bluetooth Mesh architecture. For example, the present application is described by taking four nodes 210, 220, 230, and 240 as an example, but is not limited thereto. In some embodiments, each node of the virtual MODBUS TCP server 200 can be an edge router, but is not limited thereto; preferably, the output and input ratio of each edge router is 1:20. Each node and the at least one sensor are communicatively connected through MODBUS RTU. In some embodiments, the virtual MODBUS TCP server 200 can include an ADV bearer.

[0027] In some embodiments, the sensor can include a plurality of industrial sensors 110. The industrial sensor 110 can be communicatively connected with at least one node of the virtual MODBUS TCP server through MODBUS RTU, that is, the industrial sensor 110 can be communicatively connected with the nodes 210, 220 of the virtual MODBUS TCP server 200 through MODBUS RTU.

[0028] In some embodiments, the sensor can also include a plurality of environmental sensors 120, such as EnOcean STM550B, but is not limited thereto. The environmental sensor 120 can be communicatively connected with at least one node of the virtual MODBUS TCP server, that is, the environmental sensor 120 can be communicatively connected with the nodes 220, 230 of the virtual MODBUS TCP server. In addition, the environmental sensor 120 can also use energy harvesting technology.

[0029] Therefore, by using the nodes of the virtual MODBUS TCP server 200 (e.g., nodes 210, 220, 230, 240) as bridges, the data of the Modbus RTU device is wirelessly transmitted to the Modbus TCP network.

[0030] The handheld device 300 can communicate with one of the nodes of the virtual MODBUS TCP server 200, that is, the handheld device 300 can communicate with node 240 of the virtual MODBUS TCP server 200. In some embodiments, the handheld device 300 can communicate with node 240 of the virtual MODBUS TCP server 200 through a General Attribute Profile Bearer. In some embodiments, the handheld device 300 can be a smartphone, and the smartphone can have a corresponding application installed, but is not limited thereto. The handheld device 300 can perform control operations such as triggering, turning off, and lighting on the corresponding set sensors through node 240 of the virtual MODBUS TCP server 200. Thus, through the General Attribute Profile Bearer, the handheld device 300 can directly interact with sensors (e.g., industrial sensor 110, environmental sensor 120) or controlled nodes (e.g., node 230) in the virtual MODBUS TCP server 200 to read data and transmit commands.

[0031] The sensor hub 400 can communicate with the virtual MODBUS TCP server 200 via MODBUS TCP. In some embodiments, the sensor hub 400 and the virtual MODBUS TCP server 200 can also communicate wirelessly via a Wi-Fi infrastructure. In other embodiments, the sensor hub 400 can be wired to the virtual MODBUS TCP server 200 via Power Over Ethernet (POE).

[0032] The sensor hub 400 can also be communicatively connected to at least one information system 600. There can be multiple information systems 600, which can acquire sensing data from corresponding sensors (e.g., industrial sensor 110, environmental sensor 120) via the sensor hub 400 and the nodes 210, 220, 230, and 240 of the virtual MODBUS TCP server 200. Therefore, data from each sensor, such as temperature, voltage, and current, can be displayed on the display screen 610 of the information system 600, for example, a tablet device.

[0033] The wireless sensing and control system 10 based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present invention may further include a power-off switch 500. The power-off switch 500 can communicate with at least one node of the virtual MODBUS TCP server 200 via a broadcast signal (ADV signal). That is, the power-off switch 500 can communicate with nodes 220 and 230 of the virtual MODBUS TCP server 200 via the broadcast signal (ADV signal), and then communicate with the corresponding environmental sensor 120 to enable the corresponding environmental sensor 120 to perform energy harvesting. In some embodiments, the broadcast signal is an encrypted secure signal.

[0034] In summary, the wireless sensing and control system 10 based on the integration of Bluetooth Mesh and MODBUS RTU / TCP of the present invention can achieve seamless integration of existing MODBUS systems and wireless technologies. Through the wireless sensing and control system 10 based on the integration of Bluetooth Mesh and MODBUS RTU / TCP of the present invention, data from the powerless switch 500 and powerless sensors (e.g., industrial sensor 110, environmental sensor 120) can be received and transmitted using the advertising signal (ADV signal) of the Bluetooth Mesh, while simultaneously converting MODBUS RTU data and transmitting it to the MODBUS TCP network. Furthermore, the wireless sensing and control system 10 based on Bluetooth Mesh and MODBUS RTU / TCP integration of the present invention may also include a GATT Bearer (Generic Attribute Profile Bearer), enabling the handheld device 300 to access sensors (e.g., industrial sensors 110, environmental sensors 120) or control nodes (e.g., nodes 210, 220, 230, 240) on the network via the GATT channel, thereby providing a novel wireless communication architecture through Bluetooth Mesh technology, enabling wireless communication over large-scale networks.

[0035] In other words, it can significantly improve the wireless communication capabilities of the MODBUS system while greatly reducing wiring and maintenance costs. Leveraging the high scalability and stability of Bluetooth Mesh technology enables more flexible system design and a wider range of application scenarios. The addition of the handheld device 300 further enhances the system's real-time performance and operability.

[0036] [Symbol Explanation] 10: Wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration 110: Industrial Sensors 120: Environmental Sensor 200: Virtual MODBUS TCP Server 210: Node 220: Node 230: Node 240: Node 300: Handheld device 400: Sensor Hub 500: No power switch 600: Information Systems 610: Display screen

Claims

1. A wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration, comprising: at least one sensor; a virtual MODBUS TCP server having at least three nodes of Bluetooth Mesh architecture, each node being communicatively connected to the at least one sensor via MODBUS RTU; a handheld device communicatively connected to one of the nodes of the virtual MODBUS TCP server; and a sensor hub communicatively connected to the virtual MODBUS TCP server via MODBUS TCP.

2. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh according to claim 1, wherein, Each node of the virtual MODBUS TCP server is an edge router.

3. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh according to claim 1, wherein, The at least one sensor includes a plurality of industrial sensors, each of which is communicatively connected to at least one of the nodes of the virtual MODBUS TCP server via MODBUS RTU.

4. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh according to claim 3, wherein, The at least one sensor further includes a plurality of environmental sensors, each of which is communicatively connected to at least one of the nodes of the virtual MODBUS TCP server and is capable of using energy harvesting technology.

5. The wireless sensing and control system based on Bluetooth Mesh and MODBUS RTU / TCP integration of claim 1, further comprising a no-power switch communicatively connected to at least one of the nodes of the virtual MODBUS TCP server via a broadcast signal.

6. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh of claim 1, wherein, The handheld device is communicatively connected to one of the nodes of the virtual MODBUS TCP server via a generic attribute profile bearer (GATT Bearer).

7. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh of claim 1, wherein, The sensor hub and the virtual MODBUS TCP server are further wirelessly communicatively connected via a Wi-Fi wireless infrastructure.

8. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh of claim 1, wherein, The sensor hub and the virtual MODBUS TCP server are further wiredly connected via power over Ethernet (POE).

9. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh of claim 1, wherein, The sensor hub is further communicatively connected to at least one information system for obtaining sensing data from each of the sensors via the sensor hub and each of the nodes of the virtual MODBUS TCP server.

10. The wireless sensing and control system integrated with MODBUS RTU / TCP based on Bluetooth Mesh according to claim 2, wherein, An output to input ratio of each edge router is 1:20.

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