CN112866018A - Internet of things management system and method - Google Patents
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- H—ELECTRICITY
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H04L61/50—Address allocation
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
The embodiment of the invention provides an Internet of things management system and method, the Internet of things system comprises a cloud server, a communication module and an access module, and by utilizing the Modbus protocol commonly used in the field of industrial electronics and combining the Internet protocol conversion technology, equipment with various interface protocols is accessed through the access module based on the Modbus protocol, and state information of different equipment is transmitted to the cloud server through the communication module by adopting the Modbus RTU over TCP/IP protocol, so that old equipment without the function of the Internet of things can be easily accessed to the Internet of things without any modification, functions such as remote operation, alarming, recording and the like can be realized on the equipment with various interface protocols, centralized monitoring and management of multiple nodes and various types of equipment are realized, the access threshold of the Internet of things is greatly reduced, and modern transformation of factories is facilitated.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication of the Internet of things, in particular to a management system and a management method of the Internet of things.
Background
In recent years, with the rapid development of the internet of things technology, old equipment of a plurality of factories has the requirement of accessing the internet of things, so that automatic management is realized, however, the old equipment generally only supports a relatively basic industrial communication protocol and hardly supports a current popular internet of things transmission protocol, so that the old equipment is difficult to access the internet of things based on the current popular internet of things transmission protocol.
Therefore, there is a need for a system and a method for accessing old devices to the internet of things to automatically manage the old devices, thereby facilitating the modernization of a factory.
Disclosure of Invention
The embodiment of the invention provides a management system and a management method of an Internet of things, which are used for solving the technical problem that old equipment of a factory is difficult to access the Internet of things in the prior art, so that the old equipment is automatically managed.
In a first aspect, an embodiment of the present invention provides an internet of things management system, where the system includes: the access module is used for accessing equipment with multiple interface protocols based on a Modbus protocol, and the equipment with the multiple interface protocols is communicated with the cloud server through the communication module by adopting a Modbus RTU over TCP/IP protocol.
Preferably, said devices of the plurality of interface protocols comprise RS485 interface devices, RS232 interface devices and CANBUS interface devices.
Further, the communication module is specifically configured to be connected to the cloud server through an ethernet, receive a Modbus RTU overTCP/IP packet sent by the cloud server, and upload status information of the device in multiple interface protocols to the cloud server.
Furthermore, the access module comprises a message analysis unit and a register; the message analysis unit is used for analyzing the Modbus RTU over TCP/IP message to obtain a Modbus address of the equipment; the register is used for storing Modbus addresses and state information of the equipment.
Preferably, the Modbus address of each RS485 interface device and each RS232 interface device is unique.
Preferably, a plurality of the CANBUS interface devices share one of the Modbus addresses.
In a second aspect, an embodiment of the present invention provides an internet of things management method, where the internet of things management method includes the following steps:
and S1, the cloud server is connected with the access module through the communication module by adopting a Modbus RTU overTCP/IP protocol.
And S2, the cloud server accesses the equipment with multiple interface protocols through the access module based on the Modbus protocol to acquire the state information of the equipment with multiple interface protocols.
Further, the step S1 specifically includes:
the cloud server sends a Modbus RTU over TCP/IP message to the access module through the communication module;
and the access module acquires the Modbus address of the equipment according to the Modbus RTU overTCP/IP message through a message analysis unit.
Further, the step S2 specifically includes:
and the access module acquires the state information of the equipment corresponding to the Modbus address stored in the register according to the Modbus address.
Further, before the step S1, the internet of things management method further includes:
and distributing corresponding Modbus addresses for the equipment with the multiple interface protocols through the cloud server, and writing the Modbus addresses and state information of the equipment with the multiple interface protocols into the register.
The embodiment of the invention provides an Internet of things management system and method, the Internet of things system comprises a cloud server, a communication module and an access module, the common Modbus protocol in the industrial field is combined with the Internet protocol conversion technology, the access module is used for accessing equipment with various interface protocols based on the Modbus protocol, state information of different equipment is transmitted to the cloud server through the communication module by adopting the Modbus RTU overTCP/IP protocol, and thus old equipment without the function of the Internet of things can be easily accessed to the Internet of things without any modification, so that the functions of remote operation, alarming, recording and the like of the equipment with various interface protocols are realized, the centralized monitoring and management of multiple nodes and various types of equipment are realized, the access threshold of the Internet of things is greatly reduced, and the modernization of a factory is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic general structural diagram of an internet of things management system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a management system of the internet of things according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a management method of the internet of things according to an embodiment of the present invention.
Fig. 4 is a schematic signal transmission path diagram of the management method of the internet of things according to the embodiment of the invention.
Fig. 5 is a flow chart of Modbus address allocation of the internet of things management system and method according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Fig. 1 is a schematic diagram of an overall structure of an internet of things management system provided in an embodiment of the present invention, and as shown in fig. 1, an embodiment of the present invention provides an internet of things management system, including: the cloud server 101, the communication module 102 and the access module 103, wherein the access module 103 is used for accessing devices with various interface protocols based on a Modbus protocol, and communicating the devices with various interface protocols with the cloud server 101 by using a Modbus RTU overTCP/IP protocol through the communication module 102.
The Modbus protocol is a serial interface protocol, is an industry standard of communication protocols in the current industrial field, and is a common connection mode between current industrial electronic and electrical devices. The Modbus protocol currently exists in serial ports, ethernet and other versions of internet protocol-enabled networks. The Modbus protocol is a master-slave protocol, one of nodes participating in communication using the Modbus protocol is a master node, the other nodes are slave nodes, and each slave node has a unique address. Usually, only by the master node device initiating command, one Modbus command includes the Modbus address of the slave device that is intended to execute, and all slave devices receive the command, but only the slave device in the designated location executes and responds to the command. In this embodiment of the application, the cloud server 101 serves as a master station, and devices with different interface protocols serve as slave stations, where n devices are shown to be accessed in fig. 1, where n is a positive integer greater than 1.
Specifically, because many old devices all support the Modbus protocol, the management system of the internet of things is provided with a cloud server 101 at the internet of things end and an access module 103 at the device end, the cloud server 101 and the access module 103 communicate with each other through a communication module 102, wherein the access module 103 is used for accessing devices supporting multiple interface protocols of the Modbus protocol, and then the devices supporting multiple interface protocols communicate with the cloud server 101 through the communication module 102 by adopting the Modbus RTU over TCP/IP protocol, so that the devices supporting multiple interface protocols communicate with the cloud server 101.
It is understood that a device of multiple interface protocols refers to a device that includes multiple different interface protocols, but there may be multiple devices of the same interface protocol.
The Internet of things management system that this application embodiment provided, can communicate the equipment of multiple interface protocol with unified Modbus agreement and cloud server 101, thereby will not originally do any modification with the old equipment that does not have the thing networking function and just can easily insert the thing networking, thereby realize functions such as remote operation, warning and record to the equipment of multiple interface protocol, the centralized monitoring and the management of the multiple type of equipment of multinode have been realized, the access threshold of thing networking has greatly been reduced, make things convenient for the mill to carry out modernization transformation.
Fig. 2 is a schematic structural diagram of an internet of things management system according to an embodiment of the present invention, and as shown in fig. 2, the communication module 102 is specifically configured to connect to the cloud server 101 through an ethernet, receive a Modbus RTU over TCP/IP message sent by the cloud server 101, and upload status information of devices in multiple interface protocols to the cloud server 101. The communication module 102 mainly includes various wired communication devices and wireless communication devices for establishing connection between the access module 103 and the cloud server 101. The wired communication equipment mainly solves the problems of serial port communication in industrial fields, professional bus type communication, communication of industrial Ethernet and conversion equipment among various communication protocols, and mainly comprises equipment such as a router, a switch, a modem and the like. Routers and switches are one type of communication device. The wireless communication equipment mainly comprises wireless AP, a wireless network bridge, a wireless network card, a wireless lightning arrester, an antenna and the like. That is, the access module 103 accesses the ethernet through the communication module 102, and is connected to the cloud server 101 through the ethernet.
Further, the access module 103 includes a message parsing unit and a register; the message analysis unit is used for analyzing the Modbus RTU over TCP/IP message to obtain a Modbus address of the equipment; the register is used for storing Modbus addresses and state information of the equipment, namely the equipment with different interface protocols is distinguished through the Modbus addresses, and the state information of the access equipment is stored in a register data address corresponding to the Modbus addresses.
It should be noted that the devices of multiple interface protocols include an RS485 interface device, an RS232 interface device, and a CANBUS interface device, and certainly, the cloud server 101 may configure other interface protocols that the access module 103 can access, and for a protocol that is not currently supported by the access module 103, the cloud server 101 may push a firmware update to the access module 103, so that the access module 103 implements a device that supports other customized interface protocols, so as to extend devices that access multiple other interface protocols, which is not limited herein.
Further, the Modbus address of each RS485 interface device and each RS232 interface device is unique, that is, each RS485 interface device corresponds to a unique Modbus address, and each RS232 interface device also corresponds to a unique Modbus address.
Further, a plurality of CANBUS interface devices share one Modbus address, that is, a plurality of CANBUS devices are respectively connected to the CAN bus and share one Modbus address.
Fig. 3 is a schematic flow chart of a management method of the internet of things according to an embodiment of the present invention, and as shown in fig. 3, the embodiment of the present invention further provides a management method of the internet of things, where the management method of the internet of things includes the following steps:
and S1, the cloud server is connected with the access module through the communication module by adopting a Modbus RTU over TCP/IP protocol.
S2, the cloud server obtains the state information of the devices accessing various interface protocols based on the Modbus protocol through the access module.
Specifically, when the cloud server needs to acquire the state information of a certain device, the communication module accesses the access module by adopting a Modbus RTU over TCP/IP protocol, and the access module acquires the state information of the device supporting the Modbus protocol, which is accessed in advance.
Further, step S1 specifically includes: the cloud server sends a Modbus RTU over TCP/IP message to the access module through the communication module; and the access module acquires the Modbus address of the equipment according to the Modbus RTU over TCP/IP message through the message analysis unit.
Further, step S2 specifically includes: and the access module acquires the state information of the equipment corresponding to the Modbus address stored in the register according to the Modbus address.
Specifically, as the devices with different interface protocols have own communication protocols, the embodiment of the application converts different protocol formats of the devices into a unified Modbus protocol, and reads the device data of the different protocols into a virtual Modbus address space of a custom protocol for the cloud platform to read and write. Fig. 4 is a schematic diagram of a signal transmission path of the internet of things management method according to the embodiment of the present invention, as shown in fig. 4, a cloud server allocates Modbus addresses of devices with different interface protocols through an ethernet via a router, and stores the Modbus addresses and state information of the devices in a register of an access module, the cloud server sends a Modbus RTU over TCP/IP packet to the access module via the router, and a packet parsing unit of the access module parses the Modbus RTU over TCP/IP packet to obtain the Modbus address and obtain the state information of the device corresponding to the Modbus address from the register. That is to say, different devices are distinguished through different Modbus addresses, and the state information of the corresponding device is inquired according to the Modbus addresses, so that the devices supporting multiple interface protocols of the Modbus protocol can communicate with a cloud server through a standard protocol without any modification, namely, the devices without the functions of the Internet of things are accessed into the Internet of things to realize the functions of remote operation, alarming, recording, firmware pushing and the like, the centralized monitoring and management of multiple types of devices of multiple nodes are realized, and the number of the nodes is 255 at most.
Further, before step S1, the internet of things management method further includes: and distributing corresponding Modbus addresses for the equipment with the multiple interface protocols through the cloud server, and writing the Modbus addresses and the state information of the equipment with the multiple interface protocols into a register. The Modbus address range is 0-255, generally, the address range of 0-247 is used as the access address of equipment with different interface protocols, and the address range of 248-255 is used as a spare address.
A specific embodiment is given below to describe in detail the operation flow of the internet of things management method.
Table 1 is a configuration table of Modbus addresses and different interface protocols, and devices of different interface protocols are distinguished by different Modbus addresses in table 1. Fig. 5 is a flow chart of Modbus address allocation of the internet of things management system according to the embodiment of the present invention. With reference to table 1 and fig. 5, the cloud server allocates Modbus addresses according to devices of different interface protocols, where Modbus addresses 0 to 99 are RS485 interface devices, Modbus addresses 100 to 199 are RS482 interface devices, Modbus address 200 is a CANBUS interface device, Modbus addresses 201 to 249 are devices of other custom interface protocols, so as to flexibly access devices of different interface protocols, and Modbus address 250 is an internal data setting of the internet of things management system, including baud rate setting, protocol setting, and internal state information of the access module. The CAN BUS protocol means that a plurality of CAN devices are connected on the same CAN bus to form a network, each CAN device has a corresponding CAN ID, for example, a CANBUS interface device corresponding to a Modbus address 200 in a register stores CAN IDs of 500 CAN devices at data addresses 1000-1999 of the register, each CAN ID is stored through 2 32-bit data addresses, and as 1 CAN ID corresponds to 8 state information at most, the 500 CAN ID data, namely the 500 CAN devices state information, is stored at data addresses 2000-5999, and every 8 data addresses correspond to 1 CAN ID.
TABLE 1
It should be noted that the CANBUS interface device itself does not support the Modbus protocol, so the cloud server cannot directly access the CANBUS interface device through the access module, but stores the state information uploaded by the CANBUS interface device in the virtual space of the Modbus address 200, and then uploads the state information stored in the virtual space of the Modbus address 200 to the cloud server through the access module, that is, when the cloud server accesses the CANBUS interface device through the access device, the access device stores the state information of the CANBUS interface device in the virtual space, and then the cloud server reads the state information of the CANBUS interface device stored in the virtual space.
It should be further noted that the RS485 interface device and the RS232 interface device support a Modbus protocol, and therefore the cloud server can directly access the RS485 interface device and the RS232 interface device through the access module, so as to obtain status information of the RS485 interface device and the RS232 interface device, that is, the cloud server can directly access the RS485 interface device and the RS232 interface device through the access device, so as to read status information of the RS485 interface device and the RS232 interface device. Of course, the RS485 interface device and the RS232 interface device may also be, like the CANBUS interface device, first store the status information of the RS485 interface device and the RS232 interface device in the virtual space of the corresponding Modbus address by the access device, and then read the status information of the RS485 interface device and the RS232 interface device stored in the virtual space of the corresponding Modbus address by the cloud server.
In summary, the internet of things management system and method provided by the embodiments of the present invention includes a cloud server, a communication module and an access module, and utilizes a Modbus protocol commonly used in the industrial field in combination with an internet protocol conversion technology, the equipment supporting various interface protocols of the Modbus protocol is accessed through the access module, the state information of different equipment is transmitted to the cloud server through the communication module by adopting the Modbus RTU overTCP/IP protocol, therefore, old equipment without the function of the Internet of things can be easily accessed into the Internet of things without any modification, and the Modbus address is used for distinguishing equipment with different interface protocols, therefore, the functions of remote operation, alarming, recording and the like of the equipment with various interface protocols are realized, the centralized monitoring and management of multiple nodes and various types of equipment are realized, the access threshold of the Internet of things is greatly reduced, and the modernization of a factory is facilitated.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An internet of things management system, comprising: the access module is used for accessing equipment with multiple interface protocols based on a Modbus protocol, and communicating the equipment with the cloud server through the communication module by adopting a Modbus RTU overTCP/IP protocol.
2. The IOT management system of claim 1, wherein the devices of the plurality of interface protocols include RS485 interface devices, RS232 interface devices and CANBUS interface devices.
3. The internet of things management system of claim 2, wherein the communication module is specifically configured to connect to the cloud server through an ethernet, receive a Modbus RTU over TCP/IP packet sent by the cloud server, and upload status information of the device of multiple interface protocols to the cloud server.
4. The internet of things management system of claim 3, wherein the access module comprises a message parsing unit and a register;
the message analysis unit is used for analyzing the Modbus RTU overTCP/IP message to obtain a Modbus address of the equipment;
the register is used for storing Modbus addresses and state information of the equipment.
5. The management system of the internet of things of claim 4, wherein Modbus addresses of each RS485 interface device and each RS232 interface device are unique.
6. The IOT management system of claim 4, wherein a plurality of CANBUS interface devices share one Modbus address.
7. An internet of things management method for the internet of things management system as claimed in any one of claims 1 to 6, wherein the internet of things management method comprises the following steps:
s1, the cloud server is connected with the access module through the communication module by adopting a Modbus RTU overTCP/IP protocol;
and S2, the cloud server accesses the equipment with multiple interface protocols through the access module based on the Modbus protocol to acquire the state information of the equipment with multiple interface protocols.
8. The internet of things management method according to claim 7, wherein the step S1 specifically includes:
the cloud server sends a Modbus RTU over TCP/IP message to the access module through the communication module;
and the access module acquires the Modbus address of the equipment according to the Modbus RTU over TCP/IP message through a message analysis unit.
9. The internet of things management method according to claim 8, wherein the step S2 specifically includes:
and the access module acquires the state information of the equipment corresponding to the Modbus address stored in the register according to the Modbus address.
10. The internet of things management method of claim 9, wherein before the step S1, the internet of things management method further comprises:
and distributing corresponding Modbus addresses for the equipment with the multiple interface protocols through the cloud server, and writing the Modbus addresses and state information of the equipment with the multiple interface protocols into the register.
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| CN115472034A (en) * | 2022-07-20 | 2022-12-13 | 中国交通信息科技集团有限公司 | Layered cloud architecture parking operation management system |
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| CN112087499A (en) * | 2020-08-26 | 2020-12-15 | 武汉普利商用机器有限公司 | Internet of things cloud management method and system |
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Application publication date: 20210528 |