CN113438659A - Novel remote lora rapid networking power grid state collector and networking method - Google Patents
Novel remote lora rapid networking power grid state collector and networking method Download PDFInfo
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- CN113438659A CN113438659A CN202110988724.1A CN202110988724A CN113438659A CN 113438659 A CN113438659 A CN 113438659A CN 202110988724 A CN202110988724 A CN 202110988724A CN 113438659 A CN113438659 A CN 113438659A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention provides a novel remote lora rapid networking power grid state collector and a networking method, and relates to power grid monitoring equipment, which comprises the following steps: the device comprises a processor, a memory connected to the processor, a power grid data acquisition module and a lora module, wherein the memory stores conventional lora parameters of a physical layer, and the lora parameters comprise: communication frequency, network identification and air rate; the processor is used for generating a pseudo mac address according to the noise random number generator; sending network identification information and a pseudo mac address to a lora gateway, wherein the lora gateway identifies a device to be accessed to the network according to the pseudo mac address; receiving a configuration data frame sent by a lora gateway; extracting mac address data from the configuration data frame, determining that the mac address is consistent with the pseudo mac address, and updating a local network identifier according to the configuration data frame; reply acknowledgement frame to lora gateway. Only a plurality of key unified parameters need to be configured in batch, and the rest establishing processes are automatically completed, so that the operation steps are reduced, and the networking speed of the power grid state collector is improved.
Description
Technical Field
The invention relates to the technical field of power grid monitoring, in particular to a novel remote lora rapid networking power grid state collector and a networking method.
Background
The wireless communication technology is an important component of the internet of things system, wherein the lora wireless communication technology is an important one. Lora (long Range radio), a long-distance infinite spread spectrum communication technology, is authorized to be used in a free frequency band. In a lora network, a star network structure is typical. A common lora access method is to establish a lora network, which is established by at least one lora node (an initial node, typically a lora gateway device). All parameters of the lora network agreed by this node include network ID, channel, air rate, module address, module power, etc. When other lora nodes need to be added into the network, the network parameters which can normally communicate with the initial node also need to be configured. Then, each node device needing to join the lora network needs to be configured similarly in turn. The process is high in repeatability and low in speed, and if the parameters of the lora network are required to be modified, the parameters of each node need to be modified in sequence, which is equivalent to reconfiguration.
The traditional Lora wireless communication application needs distribution network setting before use. The general distribution network mode is mainly to connect the lora serial port module with an upper computer, and then write all data of the lora distribution network into the lora module through upper computer software. And finally storing the data in a flash storage area of the lora module. And then embedding the lora module into the formal equipment, and controlling the lora module to communicate in the lora network by the MCU at the rear end after the lora module is electrified. This approach, while feasible, is a major compromise in batch efficiency.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art or the related technology, discloses a novel long-distance lora rapid networking power grid state collector and a networking method, and improves the networking speed and convenience of a lora network-based power grid data collector.
The invention discloses a novel remote lora rapid networking power grid state collector in a first aspect, which comprises: the device comprises a processor, a memory connected to the processor, a power grid data acquisition module and a lora module, wherein the memory stores appointed lora parameters of a physical layer, and the lora parameters comprise: communication frequency, network identification and air rate; the processor is configured to execute the computer program to perform the steps of: generating a pseudo mac address according to a noise random number generator; sending network identification information and a pseudo mac address to a lora gateway, wherein the lora gateway identifies a device to be accessed to the network according to the pseudo mac address; receiving a configuration data frame sent by a lora gateway; extracting mac address data from the configuration data frame, determining that the mac address is consistent with the pseudo mac address, and updating a local network identifier according to the configuration data frame; reply acknowledgement frame to lora gateway.
In the technical scheme, any collector monomer only needs to write the same embedded code without independently carrying out the distribution network of each lora device, and each node in the network can carry out automatic negotiation and automatically distribute the device deviceID field to complete the initial network configuration.
According to the novel long-distance lora fast networking power grid state collector disclosed by the invention, preferably, before the step of generating the pseudo mac address according to the noise random number generator, the collector further comprises: and reading the network identifier in the memory, detecting the consistency of the value of the network identifier and a preset value, determining that the network identifier is the preset value, and entering the step of generating the pseudo mac address.
According to the novel long-distance lora fast networking power grid state collector disclosed by the invention, preferably, the step of generating the pseudo mac address according to the noise random number generator specifically comprises the following steps: and reading the network identification, and generating a random value in a certain format by adopting a random number generator based on noise, wherein the random value is used as a pseudo mac address. Wherein, the random value of a certain format is a random number of 16 bits.
According to the novel long-distance lora fast networking power grid state collector disclosed by the invention, preferably, the step of sending the network identification information and the pseudo mac address to the lora gateway specifically comprises the following steps: and sending the network identification information and the pseudo mac address once every other time slice (500 ms) by adopting an LBT (listen before data sending whether a channel is occupied).
According to the novel long-distance lora fast networking power grid state collector disclosed by the invention, preferably, the process of transmitting data of the network identification information and the pseudo mac address to the lora gateway is subjected to CRC (cyclic redundancy check), namely, the network identification information and/or the pseudo mac address contain a CRC value.
According to the novel remote lora fast networking power grid state collector disclosed by the invention, preferably, the execution step of the processor further comprises: and waiting for all the equipment to be networked to send confirmation frames to the lora gateway, wherein the lora gateway issues a network starting message frame after receiving the confirmation frames of all the equipment to be networked.
The second aspect of the present invention discloses a networking method, which is used for a novel remote lora fast networking power grid state collector disclosed in any one of the above technical schemes, and the method comprises: recording appointed physical layer lora parameters in the node equipment, wherein the lora parameters comprise: communication frequency, network identification and air rate; the node equipment generates a pseudo mac address according to a noise random number generator; the node equipment sends network identification information and a pseudo mac address to a lora gateway; the lora gateway identifies the equipment to be accessed to the network according to the pseudo mac address; the node equipment receives a configuration data frame sent by a lora gateway; the node equipment extracts mac address data from the configuration data frame, determines that the mac address is consistent with the pseudo mac address, and updates the network identifier of the node equipment according to the configuration data frame; the node device replies an acknowledgement frame to the lora gateway.
According to the networking method disclosed in the above technical solution of the present invention, preferably, the networking method further includes: waiting for all the equipment to be accessed to send confirmation frames to the lora gateway; and the lora gateway issues a network starting message frame after receiving the confirmation frames of all the devices to be networked.
The beneficial effects of the invention at least comprise: the traditional scheme needs to configure the lora network one by one, the invention establishes the lora network, only needs to configure a plurality of key unified parameters in batch, and other establishing processes, such as generation and distribution of equipment numbers, starting and maintenance of the network and the like are automatically completed by a system, thereby reducing operation steps and improving the networking speed of the power grid state collector.
Drawings
Fig. 1 shows a schematic block diagram of a novel long-range lora fast networking grid status collector according to an embodiment of the present invention.
Fig. 2 shows a flow chart of a networking method of the novel long-distance lora fast networking grid status collector according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, according to an embodiment of the present invention, a novel remote lora fast networking power grid state collector 1 is disclosed, which includes a processor 11, a memory 12 connected to the processor, a power grid data collecting module 13, and a lora module 14, wherein a burn agreed physical layer lora parameter is recorded in the memory 12, and the lora parameter includes: communication frequency, network identification and air rate;
the processor 11 is adapted to execute a computer program to perform the steps of:
generating a pseudo mac address according to a noise random number generator;
sending network identification information and a pseudo mac address to a lora gateway, wherein the lora gateway identifies a device to be accessed to the network according to the pseudo mac address;
receiving a configuration data frame sent by a lora gateway;
extracting mac address data from the configuration data frame, determining that the mac address is consistent with the pseudo mac address, and updating a local network identifier according to the configuration data frame;
reply acknowledgement frame to lora gateway.
According to the above embodiment, preferably, before the step of generating the pseudo mac address according to the noise random number generator, the method further comprises: and reading the network identifier in the memory, detecting the consistency of the value of the network identifier and a preset value, determining that the network identifier is the preset value, and entering the step of generating the pseudo mac address.
According to the foregoing embodiment, preferably, the step of generating the pseudo mac address according to the noise random number generator specifically includes: and reading the network identification, and generating a random value in a certain format by adopting a random number generator based on noise, wherein the random value is used as a pseudo mac address. Wherein, the random value of a certain format is a random number of 16 bits.
According to the above embodiment, preferably, the step of sending the network identification information and the pseudo mac address to the lora gateway specifically includes: and sending the network identification information and the pseudo mac address once every other time slice by adopting an LBT mode.
According to the above embodiments, the network identification information and/or the pseudo mac address preferably include a crc check value.
According to the above embodiment, preferably, the method further comprises: and waiting for all the equipment to be networked to send confirmation frames to the lora gateway, wherein the lora gateway issues a network starting message frame after receiving the confirmation frames of all the equipment to be networked.
As shown in fig. 2, according to another embodiment of the present invention, there is further provided a networking method for a novel remote lora fast networking power grid state collector disclosed in any of the above embodiments, including:
step S1, burning agreed lora parameters of the physical layer in the node device, where the lora parameters include: communication frequency, network identification and air rate;
step S2, the node device generates a pseudo mac address according to the noise random number generator;
step S3, the node equipment sends network identification information and pseudo mac address to the lora gateway;
step S4, the lora gateway identifies the device to be accessed to the network according to the pseudo mac address;
step S5, the node equipment receives the configuration data frame sent by the lora gateway;
step S6, the node device extracts the mac address data from the configuration data frame, determines that the mac address is consistent with the pseudo mac address, and updates the network identifier of the node device according to the configuration data frame;
in step S7, the node device replies an acknowledgement frame to the lora gateway.
According to the above embodiment, preferably, the method further comprises: waiting for all the equipment to be accessed to send confirmation frames to the lora gateway; and the lora gateway issues a network starting message frame after receiving the confirmation frames of all the devices to be networked.
According to another embodiment of the present invention, taking the step of automatically connecting the lora gateway by the lora node A, B and C as an example, the method comprises the following steps:
step 101, appointing the lora network parameters of the physical layer. And burning the lora parameters of the physical layer into a memory of the lora equipment. The parameters here include communication frequency, network ID, and air rate. Initially, the deviceID of each lora node device is 0 xFE.
Step 102, the lora node generates a random pseudo MAC address. After all the lora node devices are powered on, firstly, the node device reads the deviceID of the flash area of the node device, and the deviceID is found to be 0xFE at this time, which indicates that the device has not been added into any lora network. (because if the device id is not 0xFE if it has been previously added to the lora network.) then the device will use a noise-based random number generator as a seed to generate a 16-bit random number as its pseudo MAC address after this power-up. For example, the pseudo MAC of A is 83B5, the pseudo MAC of B is 642A, C and is 90 EC.
And 103, a lora node equipment discovery phase. The Lora gateway will always listen to the configured channel for messages. After step 102, the Lora node device starts to send data once every other time slice in an LBT manner. The core content of the transmitted data is the deviceID and the pseudo MAC address of the current device. Of course, crc check is added later. For example, the core content sent by the device a is FE83B5crc8, the core content sent by the device B is FE642Acrc8, and the core content of the device C is 90 EC. And the gateway device receives the FExxxxxx message and then represents the lora device to be networked.
Step 104, assigning deviceID to the lora device. When a lora gateway device discovers a new device, it regenerates the device table in a sorted manner, so that the device table may be a:0183B5, B:02642A, C:0390EC when no other devices have been connected to the gateway. And then the lora gateway equipment sequentially sends configuration data frames to the network. After three-lora nodes ABC in the network receive the configuration data frame, whether the pseudo MAC is consistent with the pseudo MAC or not is checked. If the data frame is consistent with the deviceID, updating the deviceID of the data frame, and if the data frame is inconsistent with the deviceID, discarding the data frame. So that three lora nodes ABC obtain deviceids assigned by the gateway.
And 105, confirming that the deviceID is valid, and starting the communication network. And after the three lora node devices obtain the deviceids distributed by the gateway, replying an acknowledgement frame to the gateway device. And after the gateway equipment acquires the confirmation frames of all the equipment, namely three ABC equipment, the gateway equipment issues a starting network message frame. The system automatically establishes a lora network consisting of a gateway and ABC three node devices.
According to the embodiment of the invention, the lora network is established, only a plurality of key unified parameters need to be configured in batches, and other establishing processes, such as generation and distribution of equipment numbers, starting and maintenance of the network and the like are automatically completed by the system, so that the operation steps are reduced, and the networking speed of the power grid state collector is improved.
All or part of the steps in the methods of the above embodiments may be implemented by controlling the related hardware through a program, the program may be stored in a readable storage medium, which includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable rewritable Read-Only Memory (EEPROM), compact disc Read-Only Memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other medium capable of being Read by a user to carry or store data.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel quick network deployment electric wire netting state collector of remote lora, includes the treater and is connected to memory, electric wire netting data acquisition module and lora module of treater, its characterized in that includes:
recording agreed lora parameters of a physical layer in the memory, wherein the lora parameters comprise: communication frequency, network identification and air rate;
the processor is configured to execute a computer program to implement the steps of:
generating a pseudo mac address according to a noise random number generator;
sending the network identification information and the pseudo mac address to a lora gateway, wherein the lora gateway identifies a device to be accessed to the network according to the pseudo mac address;
receiving a configuration data frame sent by the lora gateway;
extracting mac address data from the configuration data frame, determining that the mac address is consistent with the pseudo mac address, and updating a local network identifier according to the configuration data frame;
and replying an acknowledgement frame to the lora gateway.
2. A novel remote lora fast networking grid status collector as claimed in claim 1, further comprising, before the step of generating pseudo mac address according to a noise random number generator:
reading the network identification in the memory, detecting the consistency of the value of the network identification and a preset value,
and determining that the network identifier is a preset value, and entering a step of generating a pseudo mac address.
3. The novel long-distance lora fast networking power grid state collector of claim 1, wherein the step of generating the pseudo mac address according to the noise random number generator specifically comprises:
and reading the network identification, and generating a random value in a certain format by adopting a random number generator based on noise, wherein the random value is used as the pseudo mac address.
4. A novel long-distance lora fast networking power grid state collector as claimed in claim 3, wherein said random value of certain format is a random number of 16 bit.
5. The novel long-distance lora fast networking power grid state collector of claim 1, wherein the step of sending the network identification information and the pseudo mac address to the lora gateway specifically comprises:
and sending the network identification information and the pseudo mac address once every other time slice by adopting an LBT (local binary transmission) mode.
6. The new remote lora fast networking power grid status collector as claimed in claim 5, wherein the network identification information and/or the pseudo mac address contains a crc check value.
7. A novel remote lora fast networking power grid state collector as claimed in any one of claims 1-5, further comprising:
and waiting for all the equipment to be networked to send the confirmation frame to the lora gateway, wherein the lora gateway issues a network starting message frame after receiving the confirmation frame of all the equipment to be networked.
8. A networking method for a novel remote lora fast networking power grid state collector as claimed in any one of claims 1 to 7, comprising:
burning appointed physical layer lora parameters in node equipment, wherein the lora parameters comprise: communication frequency, network identification and air rate;
the node equipment generates a pseudo mac address according to a noise random number generator;
the node equipment sends the network identification information and the pseudo mac address to a lora gateway;
the lora gateway identifies the equipment to be accessed to the network according to the pseudo mac address;
the node equipment receives a configuration data frame sent by the lora gateway;
the node equipment extracts mac address data from the configuration data frame, determines that the mac address is consistent with the pseudo mac address, and updates the network identifier of the node equipment according to the configuration data frame;
and the node equipment replies an acknowledgement frame to the lora gateway.
9. The networking method of claim 8, further comprising:
waiting for all the equipment to be accessed to send the confirmation frame to the lora gateway;
and the lora gateway issues a network starting message frame after receiving the confirmation frames of all the devices to be networked.
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