CN110691393A - Communication method based on public and private integration - Google Patents
Communication method based on public and private integration Download PDFInfo
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- CN110691393A CN110691393A CN201910875637.8A CN201910875637A CN110691393A CN 110691393 A CN110691393 A CN 110691393A CN 201910875637 A CN201910875637 A CN 201910875637A CN 110691393 A CN110691393 A CN 110691393A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/305—Handover due to radio link failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/17—Selecting a data network PoA [Point of Attachment]
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a public and private integrated communication method, which belongs to the technical field of low-voltage power Internet of things communication and comprises a public network and private network integrated wireless module, a communication control unit and a local communication unit, wherein the communication control unit monitors the network state of the public network and private network integrated wireless module in real time and controls the network switching of the public network and private network integrated wireless module, and the communication control unit carries out data transmission with the local communication unit through a communication link. The invention overcomes the defect that the traditional communication method only searches the network frequency band according to the network type of the access SIM card, and can ensure the stability of communication even if the environment changes by configuring a plurality of network modes through the communication control unit.
Description
Technical Field
The invention relates to the technical field of low-voltage power Internet of things communication, in particular to a public and private integrated communication method.
Background
The traditional communication method of electric power generally comprises a power line carrier method, telephone communication, satellite communication, wireless public network communication and the like in a medium-high voltage section. The wireless public network communication refers to information interaction by utilizing a wireless network of a company such as mobile, Unicom or telecom.
The national power grid provides a three-type two-network construction target in 2019, the power internet of things is an important component of the ubiquitous internet of things, the wireless communication technology covers 4 aspects of the ubiquitous power internet of things perception layer, the network layer, the platform layer and the application layer, and the establishment of a high-efficiency stable wireless communication network becomes an important task.
According to the traditional single-mode communication mode, the network frequency band is searched only according to the network system of the SIM card, and when the problems of network environment of a public network or the cost, service life and the like of the SIM card occur, the traditional communication mode can cause the situation that a terminal cannot be recovered to be on-line after the single network is disconnected, so that the communication is unstable or the network is unavailable.
Disclosure of Invention
The invention aims to provide a communication method for automatically searching network frequency bands and improving communication stability.
The technical scheme provided by the invention is as follows:
a communication method based on public and private network unification is characterized by comprising a public network and private network unification wireless module, a communication control unit and a local communication unit, wherein the communication control unit monitors the network state of the public network and private network unification wireless module in real time and controls the network switching of the public network and private network unification wireless module, and the communication control unit carries out data transmission with the local communication unit through a communication link.
Preferably, the communication control unit realizes interactive transmission of commands and data with the terminal through the local communication unit.
Preferably, when receiving the control command of the terminal, the communication control unit sets its own working state after determining according to the action of the control command and responds to the terminal command through the local communication unit.
Preferably, when the communication control unit receives data transmission of the terminal, the communication control unit sends the data to an air interface through the public network private network and a wireless module, and feeds back related sending state information to the terminal through the local communication unit; and after the public network and private network integrated wireless module receives data from an air interface, the communication control unit informs the terminal of receiving the air interface data through the local communication unit.
Preferably, the communication control unit selects the public network or the private network of the public network and private network integrated module to attach by sweeping the network frequency band or according to the working mode of the terminal.
Preferably, the communication control unit is configured to use a public network mode fixedly, a private network mode fixedly, a public network mode preferentially, a private network mode preferentially, and a local automatic switching mode preferentially.
Preferably, the method is characterized in that when the communication control unit completes network attachment, the communication control unit actively reports network access state information to the terminal, and the terminal can query the network system related information of the current network access of the communication control unit through a standard AT command and distinguish whether the network access is a public network or a private network.
Preferably, the communication control unit selects a public network or a private network of the public network and private network integrated wireless module to be attached according to the state of the priority working mode, when the external network environment changes and the communication control unit detects that the current network is detached, the communication control unit immediately starts a search behavior of another network, when the search of the other network is successful, the communication control unit is attached to the network, and when the search of the other network is failed, the communication control unit searches in a circulating manner until the other network is attached to one network.
By adopting the technical means, the technical effects are as follows:
by adopting the technical means provided by the invention, when a network fails to cause the terminal to be offline, the communication device system can immediately switch the network and complete the preparation work of the environment, so that another channel is provided for the terminal to be online again, and the stability of wireless communication is greatly improved.
Drawings
FIG. 1 is a system block diagram of a communication device;
fig. 2 is a communication flow diagram;
FIG. 3 is a flow chart of a preferred mode public-private handover;
fig. 4 is a flow chart of automatic mode public-private switching.
Detailed Description
As shown in fig. 1, a public-private unification-based communication method is characterized by comprising a public network-private network unification wireless module, a communication control unit and a local communication unit, wherein the communication control unit monitors a network state of the public network-private network unification wireless module in real time and controls network switching of the public network-private network unification wireless module, and the communication control unit performs data transmission with the local communication unit through a communication link. And when receiving the control command of the terminal, the communication control unit sets the working state of the communication control unit according to the action judgment of the control command and responds to the terminal command through the local communication unit. When the communication control unit receives data transmission of the terminal, the communication control unit sends the data to an air interface through a public network and private network integrated wireless module and feeds back related sending state information to the terminal through a local communication unit; when the public network and private network integrated wireless module receives data from the air interface, the communication control unit informs the terminal of receiving the air interface data through the local communication unit. The communication control unit is the core of the public and private integrated communication method, and can realize the real-time monitoring of the network environment and selectively switch the functions of the public and private network according to the working mode through the power control switch so as to complete the interaction process of local data and air interface data.
And the communication control unit selects a public network or a private network of the wireless module integrating the public network and the private network to attach by sweeping the network frequency band or according to the working mode of the terminal. When the communication system is powered on and started, the communication control unit judges and searches the network according to the working mode, when the network searching and attaching are completed, the communication control unit actively reports a state mark of successful network attachment through the local interface to inform the network attachment state of the upper terminal communication system, and when the network searching fails and is not attached to any network in time, the communication control unit does not report a related state mark of network attachment failure.
As shown in fig. 2, the communication control unit is configured to fixedly use a public network mode, fixedly use a private network mode, preferentially use a public network mode, preferentially use a private network mode, and locally preferentially automatically switch over a mode. When the communication control unit completes network attachment, the communication control unit actively reports network access state information to the terminal, and the terminal can inquire the related information of the current network access network system of the communication control unit through a standard AT command and distinguish whether the network access network is a public network or a private network.
After the communication system initializes and determines a priority network, the communication system performs network switching and searching behavior of a public and private network, when the communication system completes network searching and selects the priority network to be attached successfully, the upper terminal inquires a current network system through a national network standard AT instruction AT $ MYSYSINFO, the current public network or private network of the communication system can be distinguished by judging information returned by the communication control unit, a subsequent dial-up login process is executed, and a communication link between the communication system and a host station is established to realize data receiving and sending processing. Meanwhile, the communication control unit monitors the current network environment state in real time, when the network attachment is lost due to network environment fluctuation, the attachment loss process reports the corresponding network change state to inform an upper terminal, the communication system performs network switching while reporting, and the wireless module searches for the opponent network and tries to attach. If the attachment is successful, reporting the attachment successful state, and if the attachment is failed, circularly performing the switching search of the public and private networks.
As shown in fig. 3, the communication control unit selects a public network or a private network of the public-private wireless module to attach according to a priority mode state, and in the priority mode, after the communication system attaches to the network according to the initialized priority mode, there is no autonomous active switching behavior, and only when the network environment fluctuates and causes the detachment, a behavior of passively switching the network occurs. As shown in fig. 4, the communication control unit is provided with an autonomous switching mode, and when the communication system is in the public network, the communication control unit starts a function of regularly searching the private network, and this behavior is a behavior of actively switching the network to search by the communication system. In any mode, when the external network environment changes and the communication control unit detects that the current network is detached, the communication control unit immediately starts the searching action of another network, and when the other network is successfully searched, the communication control unit is attached to the network, and when the other network is unsuccessfully searched, the communication control unit circularly searches until the communication control unit is attached to one network.
Claims (8)
1. A communication method based on public and private network unification is characterized by comprising a public network and private network unification wireless module, a communication control unit and a local communication unit, wherein the communication control unit monitors the network state of the public network and private network unification wireless module in real time and controls the network switching of the public network and private network unification wireless module, and the communication control unit carries out data transmission with the local communication unit through a communication link.
2. The communication method based on the integration of public and private according to claim 1, wherein the communication control unit realizes interactive transmission of commands and data with the terminal through the local communication unit.
3. The communication method according to claim 2, wherein the communication control unit sets its own working state after determining according to the action of the control command and responds to the terminal command through the local communication unit when receiving the control command from the terminal.
4. The communication method based on public-private unification according to claim 2, wherein when the communication control unit receives data transmission of the terminal, the communication control unit sends the data to an air interface through the public-private network and a wireless module, and feeds back related sending state information to the terminal through a local communication unit; and after the public network and private network integrated wireless module receives data from an air interface, the communication control unit informs the terminal of receiving the air interface data through the local communication unit.
5. The communication method according to claim 1, wherein the communication control unit selects the public network or the private network of the public network and private network unification module to attach by sweeping a network frequency band or according to an operation mode of the terminal.
6. The public-private unification based communication method according to claim 1, wherein the communication control unit is configured to fixedly use a public network mode, fixedly use a private network mode, preferentially use a public network mode, preferentially use a private network mode, and locally preferentially automatically switch over a mode.
7. The communication method according to claim 1, wherein the communication control unit actively reports network access status information to the terminal when completing network attachment, and the terminal can query information related to a current network access network system of the communication control unit through a standard AT command and distinguish whether the communication control unit is a public network or a private network.
8. The communication method according to claim 6, wherein the communication control unit selects the public network or the private network of the wireless module for integrating the public network and the private network according to the state of the priority operation mode, when the external network environment changes and the communication control unit detects that the current network is detached, the communication control unit immediately starts a search behavior of another network, when the search of another network is successful, the communication control unit is attached to the network, and when the search of another network is failed, the communication control unit searches in a loop until the communication control unit is attached to one network.
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| CN201910875637.8A CN110691393A (en) | 2019-09-17 | 2019-09-17 | Communication method based on public and private integration |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111698745A (en) * | 2020-06-24 | 2020-09-22 | 塔盾信息技术(上海)有限公司 | AI (Artificial intelligence) public-private fusion and unmanned intelligent equipment networking method, system and equipment |
| CN111935706A (en) * | 2020-07-14 | 2020-11-13 | 南京南瑞信息通信科技有限公司 | Electric wireless communication terminal device compatible with 4G private network and 5G public network and self-adaption method |
| CN112885068A (en) * | 2021-01-22 | 2021-06-01 | 国网江苏省电力有限公司电力科学研究院 | Public and private network communication module of power utilization information acquisition terminal and switching method |
| CN113393655A (en) * | 2021-06-09 | 2021-09-14 | 国网山东省电力公司东平县供电公司 | Power transmission line monitoring system fusing wireless private network communication |
| CN113517940A (en) * | 2021-04-25 | 2021-10-19 | 海南电网有限责任公司 | Intelligent switching system for electric power optical fiber private network and 5G public network |
| CN114501565A (en) * | 2022-02-21 | 2022-05-13 | 深圳市亿诺德科技有限公司 | Network switching method based on industrial Internet of things |
| CN114585053A (en) * | 2022-01-21 | 2022-06-03 | 高新兴物联科技有限公司 | Public and private network frequency band fusion method, device, equipment and storage medium |
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