CN113490290A

CN113490290A - Wireless chain type ad hoc network method, device and system for power transmission Internet of things

Info

Publication number: CN113490290A
Application number: CN202110894842.6A
Authority: CN
Inventors: 邓烽; 张海滨; 曹东宏; 梅德冬; 李志坚; 刘世裕; 丁杰; 王伟
Original assignee: NARI Group Corp; Nari Technology Co Ltd; NARI Nanjing Control System Co Ltd; State Grid Electric Power Research Institute
Current assignee: NARI Group Corp; Nari Technology Co Ltd; NARI Nanjing Control System Co Ltd; State Grid Electric Power Research Institute
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-10-08

Abstract

The invention discloses a wireless chain type ad hoc network method, a wireless chain type ad hoc network device and a wireless chain type ad hoc network system for a power transmission Internet of things, wherein the method comprises the steps that an access node sends a communication time slot information message, and the communication time slot information message is used for enabling each level of convergence unit to send a random access application step by step according to the received communication time slot information message and build an ad hoc network layer by layer; the access node completes the random access of the convergence unit based on the received random access application. The invention can realize tower-by-tower multi-hop reliable transmission of the sensing data and construct the power transmission line internet of things communication network, thereby realizing uniform aggregation and forwarding of the sensing data.

Description

Wireless chain type ad hoc network method, device and system for power transmission Internet of things

Technical Field

The invention belongs to the technical field of power transmission operation and inspection, and particularly relates to a wireless chain type ad hoc network method, device and system for a power transmission internet of things.

Background

With the rapid development of computer technology, electronic information technology and sensor technology, the monitoring technology of the power system is gradually developed, a plurality of state parameters of the power transmission line can be monitored in real time, then the acquired data are transmitted to the monitoring center by utilizing the advanced wireless communication technology, and the monitoring center conducts careful analysis on the data information, so that whether the operation condition of the power transmission line is abnormal or not can be automatically extracted, and a unified information display platform is provided for managers. The system can reasonably change the traditional maintenance and repair method of the transmission line, so that the fault detection of the transmission line reaches the specialized level, the reliability of the transmission line is greatly improved, and the operation cost of the system is reduced.

The coming of the current smart grid era indicates that the power monitoring technology will be updated and developed more quickly. The acquisition range of the intelligent power grid for the state information is greatly changed from that of the traditional power grid; different from local, dispersed and isolated information of a traditional power grid, for an intelligent power grid, monitored state information of the intelligent power grid has the characteristics of wide area, panorama, real time, omnibearing, same section, accuracy and reliability. The state monitoring information of the intelligent power grid not only comprises the state information of power grid equipment, such as the health state, the degradation trend, the safe operation bearing range, the economic operation curve and the like of power generation and power transmission and transformation equipment; real-time information of power grid operation is also needed, such as unit operation condition, power grid operation condition, tide change information, power utilization side demand information and the like: there should also be natural physical information such as: geographic information, weather information, catastrophe forecast information, and the like.

Meanwhile, the communication modes commonly used in the power monitoring system at present include power line carrier communication, optical fiber, 3G/4G, WiFi and the like, and in the online monitoring project of the power transmission line of the power system, a wireless communication system is mostly adopted to solve the data return problem of monitoring information, wherein the main solution is to rent a data channel of a public network wireless communication network, data transmission is performed between a monitoring terminal and a monitoring host in a way of public network wireless communication, and the networking mode is a star network in which the monitoring host located in a base station corresponds to a plurality of monitoring terminals, but the mode of realizing data return by adopting the public network is dead corners which cannot be solved for areas which are not covered by the public network.

In the online monitoring project of the power system transmission line, a wireless communication system is mostly adopted to solve the data return problem of monitoring information, wherein the main solving way is to rent a public network wireless communication network data channel, data transmission is carried out between a monitoring terminal and a monitoring host in a public network wireless communication mode, and the networking mode is a star network that the monitoring host located in a base station corresponds to a plurality of monitoring terminals.

The power transmission line has no reliable power supply, the coverage condition of communication signals is poor, the uncovered area of local signals is numerous, even a signal-free area with the length of tens of kilometers or even hundreds of kilometers exists, the circuit of the area is usually an area which is difficult for patrolling personnel to reach, and the patrol and inspection work is difficult. The construction of the intelligent physical-physical linkage operation and maintenance management and control system of the power transmission line faces the following specific problems:

(1) because the signals are sent upwards in a 4G mode, blind areas exist in the line sections where the signals of operators cannot cover or are unstable in the monitoring process.

(2) The existing on-line monitoring device respectively sends service systems through SIM cards, the channel utilization rate is low, the communication cost is high, and the communication cost needs to be reduced through an access node device.

(3) In the traditional power transmission line monitoring equipment, each scene online monitoring system is independently constructed, the sensing equipment, the data acquisition, calculation, communication resources and the like of different specialties on the same site are not fully shared and shared, and the phenomena of repeated construction and repeated data acquisition of acquisition terminals of different specialties exist. A plurality of systems are mutually independent, so that a chimney is erected, and data interconnection and sharing are difficult to realize.

Disclosure of Invention

In order to solve the problems, the invention provides a wireless chain type ad hoc network method, device and system for a power transmission internet of things, which can realize reliable transmission of sensing data tower by tower and by multiple hops and construct a power transmission line internet of things communication network, thereby realizing uniform aggregation and forwarding of the sensing data.

In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:

in a first aspect, the invention provides a wireless chain type ad hoc network method for a power transmission internet of things, which comprises the following steps:

the access node sends a communication time slot information message, wherein the communication time slot information message is used for enabling each level of convergence unit to send a random access application step by step according to the received communication time slot information message, and an ad hoc network is built layer by layer;

the access node completes the random access of the convergence unit based on the received random access application.

Optionally, the aggregation unit in direct communication with the access node is a direct aggregation unit; the access node completes the random access of the direct convergence unit through the following steps:

the access node sends a time slot distribution information control packet, wherein the time slot distribution information control packet is used for enabling the direct convergence unit to analyze current time slot distribution information from the time slot distribution information control packet after receiving the time slot distribution information control packet, and selecting an idle time slot to send a random access application based on the current time slot distribution information;

and the access node receives the random access application sent by the direct aggregation unit and completes the random access corresponding to the direct aggregation unit.

Optionally, the random access application includes a registration application and a time slot application; the access node receives a random access application sent by the direct aggregation unit and completes random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the access node receives a registration application sent by the direct aggregation unit and completes registration of the corresponding direct aggregation unit;

the access node receives the time slot application sent by the direct aggregation unit, sends a scheduling control packet to the direct aggregation unit, performs time slot scheduling table configuration according to the current time slot allocation state after receiving the registration success response message of the direct aggregation unit, and sends a communication time slot scheduling instruction to the direct aggregation unit, so that each direct aggregation unit stores respective communication time slot.

Optionally, a convergence unit in direct communication with the access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit; the access node completes the random access of the indirect convergence unit through the following steps:

the access node sends a time slot distribution information control packet, wherein the time slot distribution information control packet is used for enabling the direct aggregation unit to forward the received time slot distribution information control packet to the indirect aggregation unit according to the communication time slots distributed to the direct aggregation unit respectively, enabling the indirect aggregation unit to analyze current time slot distribution information from the time slot distribution information control packet, selecting an idle time slot to send a random access application based on the current time slot distribution information, and enabling the direct aggregation unit to forward the random access application to the access node;

and the access node receives the random access application forwarded by the direct aggregation unit and completes the random access of the corresponding indirect aggregation unit.

Optionally, the random access application includes a registration application and a time slot application; the access node receives the random access application forwarded by the direct aggregation unit and completes the random access of the corresponding indirect aggregation unit, and the method specifically comprises the following steps:

the access node receives the registration application forwarded by the direct aggregation unit and completes the registration of the corresponding indirect aggregation unit;

the access node receives the time slot application forwarded by the direct aggregation unit, and sends a scheduling control packet to the direct aggregation unit, wherein the scheduling control packet enables the direct aggregation unit to register the information of the corresponding indirect aggregation unit and forwards the scheduling control packet to the corresponding indirect aggregation unit, so that the indirect aggregation unit sends a registration success response message to the direct aggregation unit, and the direct aggregation unit forwards the registration success response message to the access node according to the distributed communication time slot;

after receiving the successful registration response of the indirect convergence unit, the access node also performs time slot scheduling configuration according to the current time slot allocation state, and issues a communication time slot scheduling instruction to the direct convergence unit, so that the direct convergence unit forwards the communication time slot to the corresponding indirect convergence unit, and the corresponding distance convergence unit stores the communication time slot.

Optionally, before the step of sending the timeslot assignment information control packet by the access node, the method further includes:

the access node sends the broadcast packet, so that each level of the convergence unit receiving the broadcast packet completes time synchronization.

In a second aspect, the invention provides a wireless chain type ad hoc network method for a power transmission internet of things, which comprises the following steps:

a sink node receives a communication time slot information message sent by an access node;

the sink node sends a random access application to the access node step by step according to the received communication time slot information message, and the self-organizing network is built layer by layer, wherein the random access application is used for enabling the access node to complete the random access of the sink unit.

Optionally, a convergence unit in direct communication with the access node is a direct convergence unit, and the direct convergence unit is accessed to the access node through the following steps;

a direct convergence unit receives a time slot allocation information control packet sent by an access node;

the direct aggregation unit analyzes current time slot allocation information from a time slot allocation information control packet sent by the access node, and selects an idle time slot to send a random access application to the access node based on the current time slot allocation information, so that the access node receives the random access application sent by the direct aggregation unit and completes the random access corresponding to the direct aggregation unit.

Optionally, the random access application includes a registration application and a time slot application; the method comprises the following steps that an idle time slot is selected to send a random access application to an access node based on current time slot allocation information, so that the access node receives the random access application sent by a direct aggregation unit and completes the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the direct aggregation unit selects an idle time slot to send a registration application to the access node based on the current time slot allocation information, so that the access node receives the registration application sent by the direct aggregation unit and completes the registration of the corresponding direct aggregation unit;

the direct aggregation unit selects an idle time slot to send a time slot application to the access node based on the current time slot allocation information, so that the access node receives the time slot application sent by the direct aggregation unit and sends a scheduling control packet;

the direct aggregation unit receives a scheduling control packet sent by the access node, generates a registration success response message and sends the registration success response message to the access node, so that the access node performs time slot scheduling table configuration after receiving the registration success response message sent by the direct aggregation unit and sends a communication time slot scheduling instruction to the direct aggregation unit;

the direct convergence unit stores respective communication time slots.

Optionally, the aggregation unit that directly communicates with the access node is a direct aggregation unit, the aggregation unit that communicates with the access node through other aggregation units is an indirect aggregation unit, and the indirect aggregation unit is accessed to the access node through the following steps:

the indirect convergence unit receives a time slot allocation information control packet sent by the access node; the time slot distribution information control packet is transmitted to the indirect convergence unit by the direct convergence unit according to the distributed communication time slot forwarding access node;

the indirect convergence unit analyzes current time slot distribution information from the received time slot distribution information control packet, selects an idle time slot based on the current time slot distribution information to send a random access application, and constructs an ad hoc network layer by layer; the random access application is used for enabling the access node to complete random access of the indirect convergence unit based on the received random access application.

Optionally, the random access application includes a registration application and a time slot application; the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application, and specifically comprises the following steps: the indirect convergence unit sends a registration success response message to the direct convergence unit based on the received scheduling control packet, and the method for acquiring the scheduling control packet comprises the following steps: the indirect aggregation unit sends a registration application to the direct aggregation unit, so that the direct aggregation unit forwards the received registration application to the access node, and the access node completes the registration of the corresponding indirect aggregation unit based on the received registration application; the indirect convergence unit sends a time slot application to the direct convergence unit, so that the direct convergence unit forwards the received time slot application to the access node, and the access node sends a scheduling control packet based on the received time slot application, wherein the scheduling control includes that the direct convergence unit registers information corresponding to the indirect convergence unit and forwards the scheduling control packet to the corresponding indirect convergence unit;

the indirect convergence unit receives and stores the communication time slot, and the method for acquiring the communication time slot comprises the following steps: the indirect convergence unit enables the direct convergence unit to forward the response message of successful registration to the access node according to the allocated communication time slot, enables the access node to carry out time slot scheduling configuration, and issues a communication time slot scheduling instruction to the direct convergence unit, and the direct convergence unit forwards the communication time slot scheduling instruction to the corresponding indirect convergence unit.

In a third aspect, the invention provides a wireless chain type ad hoc network device for a power transmission internet of things, which includes an access node, where the access node includes:

the sending module is used for sending a communication time slot information message, and the communication time slot information message enables each level of convergence units to send random access applications step by step according to the received communication time slot information message, so that an ad hoc network is built layer by layer;

and the execution module is used for the access node to complete the random access of the convergence unit based on the received random access application.

Optionally, the aggregation unit in direct communication with the access node is a direct aggregation unit;

the sending module is used for sending a time slot distribution information control packet, and the time slot distribution information control packet is used for enabling the direct convergence unit to analyze current time slot distribution information from the time slot distribution information control packet and select an idle time slot to send a random access application based on the current time slot distribution information;

the execution module is used for receiving the random access application sent by the direct convergence unit and completing the random access corresponding to the direct convergence unit.

Optionally, the random access application includes a registration application and a time slot application; the execution module is used for receiving the random access application sent by the direct convergence unit and completing the random access corresponding to the direct convergence unit, and specifically comprises the following steps:

the execution module receives a registration application sent by the direct convergence unit and completes registration of the corresponding direct convergence unit;

the execution module receives the time slot application sent by the direct aggregation unit, sends a scheduling control packet to the direct aggregation unit, performs time slot scheduling table configuration according to the current time slot allocation state after receiving the registration success response message of the direct aggregation unit, and sends a communication time slot scheduling instruction to the direct aggregation unit, so that each direct aggregation unit stores respective communication time slot.

Optionally, a convergence unit in direct communication with the access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit;

the sending module sends a time slot distribution information control packet, wherein the time slot distribution information control packet is used for enabling the direct aggregation unit to forward the received time slot distribution information control packet to the indirect aggregation unit according to the communication time slots distributed to the direct aggregation unit respectively, enabling the indirect aggregation unit to analyze current time slot distribution information from the time slot distribution information control packet, selecting an idle time slot to send a random access application based on the current time slot distribution information, and further enabling the direct aggregation unit to forward the random access application to the execution unit;

and the execution unit receives the random access application forwarded by the direct aggregation unit and completes the random access of the corresponding indirect aggregation unit.

Optionally, the random access application includes a registration application and a time slot application; the execution unit receives the random access application forwarded by the direct aggregation unit and completes the random access corresponding to the indirect aggregation unit, and the method specifically comprises the following steps:

the execution unit receives the registration application forwarded by the direct aggregation unit and completes the registration of the corresponding indirect aggregation unit;

the execution unit receives the time slot application forwarded by the direct aggregation unit, and sends a scheduling control packet to the direct aggregation unit, wherein the scheduling control packet enables the direct aggregation unit to register the information of the corresponding indirect aggregation unit and forwards the scheduling control packet to the corresponding indirect aggregation unit, so that the indirect aggregation unit sends a registration success response message to the direct aggregation unit, and the direct aggregation unit forwards the registration success response message to the execution unit according to the distributed communication time slot;

and after receiving the successful registration response of the indirect convergence unit, the execution unit performs time slot scheduling configuration according to the current time slot allocation state, and issues a communication time slot scheduling instruction to the direct convergence unit, so that the direct convergence unit forwards the communication time slot to the corresponding indirect convergence unit, and the corresponding interval convergence unit stores the communication time slot.

In a fourth aspect, the invention provides a wireless chain type ad hoc network device for a power transmission internet of things, which comprises a convergence unit, wherein the convergence unit comprises:

the receiving module is used for receiving a communication time slot information message sent by the access node;

and the execution module is used for sending a random access application to the access node step by step according to the received communication time slot information message, and constructing the ad hoc network layer by layer, wherein the random access application enables the access node to complete the random access of the convergence unit based on the received random access application.

Optionally, a convergence unit in direct communication with the access node is a direct convergence unit, and the direct convergence unit includes:

the direct receiving module is used for receiving a time slot allocation information control packet sent by the access node;

and the direct execution module is used for analyzing the current time slot allocation information from the time slot allocation information control packet sent by the access node, and selecting an idle time slot to send a random access application to the access node based on the current time slot allocation information, so that the access node receives the random access application sent by the direct aggregation unit and completes the random access corresponding to the direct aggregation unit.

Optionally, the random access application includes a registration application and a time slot application; the method comprises the following steps that an idle time slot is selected to send a random access application to an access node based on current time slot allocation information, so that the access node receives the random access application sent by a direct aggregation unit and completes the random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the direct execution module selects an idle time slot to send a registration application to the access node based on the current time slot allocation information, so that the access node receives the registration application sent by the direct execution module and completes the registration of the corresponding direct convergence unit;

the direct execution module selects an idle time slot to send a time slot application to the access node based on the current time slot allocation information, so that the access node receives the time slot application sent by the direct execution module and sends a scheduling control packet;

the direct execution module receives a scheduling control packet sent by the access node, generates a registration success response message and sends the registration success response message to the access node, so that the access node performs time slot scheduling table configuration after receiving the registration success response message sent by the direct execution module and sends a communication time slot scheduling instruction to the direct aggregation unit;

the direct execution module saves the respective communication time slot.

Optionally, a convergence unit in direct communication with the access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit; the indirect convergence unit includes:

the indirect receiving module is used for receiving a time slot distribution information control packet sent by the access node; the time slot distribution information control packet is transmitted to the indirect receiving module by the direct convergence unit according to the distributed communication time slot forwarding access node;

the indirect execution module is used for analyzing current time slot distribution information from the received time slot distribution information control packet, selecting an idle time slot based on the current time slot distribution information to send a random access application, and constructing the ad hoc network layer by layer; and the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application and storing the communication time slot.

Optionally, the random access application includes a registration application and a time slot application; the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application, and specifically comprises the following steps: the indirect execution module sends a registration success response message to the direct aggregation unit based on the received scheduling control packet, and the method for acquiring the scheduling control packet comprises the following steps: the indirect execution module sends a registration application to the direct aggregation unit, so that the direct aggregation unit forwards the received registration application to the access node, and the access node completes the registration of the corresponding indirect aggregation unit based on the received registration application; the method comprises the steps that an indirect execution module sends a time slot application to a direct aggregation unit, so that the direct aggregation unit forwards the received time slot application to an access node, and the access node sends a scheduling control packet based on the received time slot application, wherein the scheduling control comprises the steps of enabling the direct aggregation unit to register information of a corresponding indirect aggregation unit and forwarding the scheduling control packet to the corresponding indirect aggregation unit;

the indirect execution module receives and stores the communication time slot, and the method for acquiring the communication time slot comprises the following steps: the indirect execution module enables the direct aggregation unit to forward the response message of successful registration to the access node according to the allocated communication time slot, enables the access node to carry out time slot scheduling configuration, issues a communication time slot scheduling instruction to the direct aggregation unit, and the direct aggregation unit forwards the communication time slot scheduling instruction to the corresponding indirect aggregation unit.

Optionally, the sink unit includes a sink node and a sensing unit.

Compared with the prior art, the invention has the beneficial effects that:

the invention can provide a reliable transmission Internet of things, solves the problems of uniform aggregation and uniform access of data of on-line monitoring sensing units of a transmission line, chain networking without signal areas, equipment reliability improvement and the like, realizes uniform access, data analysis and data forwarding of various sensing equipment, meets the requirements of flexible networking and coverage of different scenes, realizes intensification, standardized management and interconnection application of transmission professional data, improves the real-time sensing of state information, autonomous early warning of a power grid and intelligent decision-making capability by combining with the actual application depth mining data value, and realizes effective sharing of resources and data among various professions, departments and various industries.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a wireless chain type ad hoc network device of a power transmission internet of things according to an embodiment of the present invention;

fig. 2 is a schematic view of a working flow of a wireless chain type ad hoc network device of a power transmission internet of things according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.

Example 1

The embodiment of the invention provides a wireless chain type ad hoc network method for a power transmission Internet of things, which comprises the following steps of:

the access node sends a broadcast packet, wherein the broadcast packet is used for enabling each level of aggregation units receiving the broadcast packet to complete time synchronization; in the specific implementation process, the access node preferably sends a broadcast packet in a periodic manner;

the access node sends a communication time slot information message, wherein the communication time slot information message is used for enabling each level of convergence unit to send a random access application step by step according to the received communication time slot information message, and the random access application comprises a registration application and is used for building an ad hoc network layer by layer; in a specific implementation process, the access node periodically sends a communication time slot information message;

In a specific implementation manner of the embodiment of the present invention, a sink unit directly communicating with an access node is defined as a direct sink unit, and the access node completes random access of the direct sink unit by the following steps:

the access node sends a time slot distribution information control packet, wherein the time slot distribution information control packet is used for enabling the direct convergence unit to receive the time slot distribution information control packet, then analyze current time slot distribution information from the time slot distribution information control packet, select an idle time slot based on the current time slot distribution information to send a random access application, namely, select one time slot from the unallocated time slots, and send a random access application message containing equipment ID identification and communication address information to the access node;

and the access node receives the random access application sent by the direct aggregation unit and completes the random access corresponding to the direct aggregation unit. The random access application comprises a registration application and a time slot application; the access node receives a random access application sent by the direct aggregation unit and completes random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the access node receives a time slot application sent by the direct aggregation unit, sends a scheduling control packet to the direct aggregation unit, performs time slot scheduling configuration according to the current time slot allocation state after receiving a registration success response message of the direct aggregation unit, and sends a communication time slot scheduling instruction to the direct aggregation unit, so that each direct aggregation unit stores respective communication time slot, wherein the scheduling control packet comprises a registration device ID and address information.

In a specific implementation manner of the embodiment of the present invention, a sink unit that directly communicates with an access node is a direct sink unit, and a sink unit that communicates with the access node via other sink units is an indirect sink unit; the access node completes the random access of the indirect convergence unit through the following steps:

the access node periodically sends a time slot distribution information control packet, so that the direct aggregation unit forwards the received time slot distribution information control packet to the indirect aggregation unit according to the communication time slots distributed to the direct aggregation unit, the indirect aggregation unit analyzes the current time slot distribution information from the time slot distribution information control packet, and selects an idle time slot to send a random access application based on the current time slot distribution information, and further the direct aggregation unit forwards the random access application to the access node;

the access node receives the random access application forwarded by the direct aggregation unit and completes the registration of the corresponding indirect aggregation unit;

the access node sends a scheduling control packet to the direct aggregation unit, so that the direct aggregation unit registers information corresponding to the indirect aggregation unit and forwards the scheduling control packet to the corresponding indirect aggregation unit, so that the indirect aggregation unit sends a registration success response message to the direct aggregation unit, and the direct aggregation unit forwards the registration success response message to the access node according to the distributed communication time slot;

and the access node carries out time slot scheduling configuration and issues a communication time slot scheduling instruction to the direct aggregation unit, so that the direct aggregation unit forwards the communication time slot scheduling instruction to the corresponding indirect aggregation unit, and the corresponding interval aggregation unit stores the communication time slot.

In the specific implementation process, the access node performs time slot schedule configuration according to the registered device configured with information such as an upload cycle, an upload data length and the like, issues a communication time slot scheduling instruction to the direct aggregation unit (namely, the first-level aggregation node and the first-level sensing unit), and the first-level aggregation node and the first-level sensing unit store and confirm the communication time slot of the device according to the received scheduling instruction and send a time slot scheduling confirmation packet according to the specified time slot. If the access node does not locally have information such as the uploading period, the uploading data length and the like of the registration equipment, a temporary communication time slot configuration time slot scheduling table is added according to the request of the sink node or the random channel of the sensing unit, and time slot scheduling is achieved.

Example 2

The embodiment of the invention provides a wireless chain type ad hoc network method for a power transmission Internet of things, which comprises the following steps:

the sink node receives a communication time slot information message periodically sent by the access node, and sends a random access application to the access node step by step according to the received communication time slot information message, wherein the random access application comprises a registration application and a time slot application, and an ad hoc network is built layer by layer;

the access node completes the random access registration of the aggregation unit based on the received registration application by the registration application sent by the aggregation node;

and the time slot application sent by the aggregation node enables the access node to complete the communication time slot scheduling of the accessed aggregation unit based on the received time slot application.

In a specific implementation manner of the embodiment of the present invention, a convergence unit directly communicating with an access node is defined as a direct convergence unit, and the direct convergence unit is accessed to the access node through the following steps:

the direct aggregation unit analyzes current time slot allocation information from a control packet of the time slot allocation information periodically sent by the access node, and selects an idle time slot to send a random access application to the access node based on the current time slot allocation information, so that the access node receives the random access application sent by the direct aggregation unit, completes registration of the corresponding direct aggregation unit and sends a scheduling control packet;

the direct convergence unit stores respective communication time slots.

In a specific implementation manner of the embodiment of the present invention, a convergence unit that directly communicates with an access node is defined as a direct convergence unit, a convergence unit that communicates with the access node via other convergence units is defined as an indirect convergence unit, and the indirect convergence unit is accessed to the access node through the following steps:

the indirect convergence unit analyzes the current time slot distribution information from the received time slot distribution information control packet and selects an idle time slot to send a random access application based on the current time slot distribution information; the time slot distribution information control packet is transmitted to the indirect convergence unit by the direct convergence unit according to the distributed communication time slot forwarding access node;

the indirect convergence unit sends a registration success response message to the direct convergence unit based on the received scheduling control packet, and the method for acquiring the scheduling control packet comprises the following steps: the received random access application is forwarded to the access node through the direct aggregation unit, so that the access node completes registration of the corresponding indirect aggregation unit based on the received random access application and sends a scheduling control packet; the direct aggregation unit registers information of the corresponding indirect aggregation unit based on a received scheduling control packet sent by the access node, and forwards the scheduling control packet to the corresponding indirect aggregation unit;

the indirect convergence unit receives and stores the communication time slot, and the method for acquiring the communication time slot comprises the following steps: and forwarding the registration success response message to the access node according to the allocated communication time slot through the direct aggregation unit, so that the access node performs time slot scheduling configuration, issues a communication time slot scheduling instruction to the direct aggregation unit, and forwards the communication time slot scheduling instruction to the corresponding indirect aggregation unit through the direct aggregation unit.

Example 3

The invention provides a wireless chain type ad hoc network device of a power transmission internet of things, which comprises an access node, wherein the access node comprises:

In a specific implementation manner of the embodiment of the present invention, a sink unit directly communicating with an access node is a direct sink unit;

In a specific implementation manner of the embodiment of the present invention, the random access application includes a registration application and a time slot application; the execution module is used for receiving the random access application sent by the direct convergence unit and completing the random access corresponding to the direct convergence unit, and specifically comprises the following steps:

In a specific implementation manner of the embodiment of the present invention, a sink unit that directly communicates with an access node is a direct sink unit, and a sink unit that communicates with the access node via other sink units is an indirect sink unit;

In a specific implementation manner of the embodiment of the present invention, the random access application includes a registration application and a time slot application; the execution unit receives the random access application forwarded by the direct aggregation unit and completes the random access corresponding to the indirect aggregation unit, and the method specifically comprises the following steps:

Example 4

The embodiment of the invention provides a wireless chain type ad hoc network device for a power transmission internet of things, which comprises a convergence unit, wherein the convergence unit comprises:

In a specific implementation manner of the embodiment of the present invention, a convergence unit directly communicating with an access node is a direct convergence unit, and the direct convergence unit includes:

In a specific implementation manner of the embodiment of the present invention, the random access application includes a registration application and a time slot application; the method comprises the following steps that an idle time slot is selected to send a random access application to an access node based on current time slot allocation information, so that the access node receives the random access application sent by a direct aggregation unit and completes the random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the direct execution module saves the respective communication time slot.

In a specific implementation manner of the embodiment of the present invention, a sink unit that directly communicates with an access node is a direct sink unit, and a sink unit that communicates with the access node via other sink units is an indirect sink unit; the indirect convergence unit includes:

In a specific implementation manner of the embodiment of the present invention, the random access application includes a registration application and a time slot application; the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application, and specifically comprises the following steps:

the indirect execution module sends a registration success response message to the direct aggregation unit based on the received scheduling control packet, and the method for acquiring the scheduling control packet comprises the following steps: the indirect execution module sends a registration application to the direct aggregation unit, so that the direct aggregation unit forwards the received registration application to the access node, and the access node completes the registration of the corresponding indirect aggregation unit based on the received registration application; the method comprises the steps that an indirect execution module sends a time slot application to a direct aggregation unit, so that the direct aggregation unit forwards the received time slot application to an access node, and the access node sends a scheduling control packet based on the received time slot application, wherein the scheduling control comprises the steps of enabling the direct aggregation unit to register information of a corresponding indirect aggregation unit and forwarding the scheduling control packet to the corresponding indirect aggregation unit;

In a specific implementation manner of the embodiment of the present invention, the sink unit may further include a sink node and a sensing unit.

Example 5

The embodiment of the invention provides a wireless chain type ad hoc network system of a power transmission internet of things, which comprises an access node and a convergence unit as shown in figure 1, wherein the convergence unit comprises a convergence node and a sensor which are connected with each other;

the access node periodically sends communication time slot information messages, each level of convergence unit sends random access application step by step according to the received communication time slot information messages, and an ad hoc network is built layer by layer; the random access application comprises a registration application and a time slot application;

the access node completes the random access registration of the convergence unit based on the received random access application;

and the access node completes the communication time slot scheduling of the accessed convergence unit based on the received random access application.

In a specific implementation manner of the embodiment of the present invention, a convergence unit directly communicating with an access node is defined as a direct convergence unit, and a method for constructing an ad hoc network includes:

the direct aggregation unit analyzes current time slot allocation information from the access node periodically sending time slot allocation information control packet, selects an idle time slot to send a random access application to the access node based on the current time slot allocation information, and the access node receives the random access application sent by the direct aggregation unit to complete the registration of the corresponding direct aggregation unit;

the direct aggregation unit receives a scheduling control packet sent by an access node, generates a registration success response message and sends the registration success response message to the access node, and the access node performs time slot scheduling table configuration after receiving the registration success response message sent by the direct aggregation unit and sends a communication time slot scheduling instruction to the direct aggregation unit;

and the direct convergence unit stores respective communication time slots.

In a specific implementation manner of the embodiment of the present invention, a convergence unit that communicates with an access node via other convergence units is defined as an indirect convergence unit, and a method for constructing an ad hoc network includes:

the direct aggregation unit forwards a time slot allocation information control packet sent by the access node to the indirect aggregation unit according to the allocated communication time slot, and the indirect aggregation unit analyzes the current time slot allocation information from the time slot allocation information control packet and selects an idle time slot to send a random access application based on the current time slot allocation information;

the direct aggregation unit forwards the random access application to an access node, and the access node completes registration of a corresponding indirect aggregation unit based on the received random access application;

the direct aggregation unit registers information of a corresponding indirect aggregation unit based on a received scheduling control packet sent by the access node, forwards the scheduling control packet to the corresponding indirect aggregation unit, sends a registration success response message to the direct aggregation unit, forwards the registration success response message to the access node by the direct aggregation unit according to the allocated communication time slot, and configures a time slot scheduling table and sends a communication time slot scheduling instruction to the direct aggregation unit;

the direct convergence unit forwards the communication time slot scheduling instruction to the corresponding indirect convergence unit, and the corresponding distance convergence unit stores the communication time slot.

The working process of the power transmission internet of things wireless chain type ad hoc network system in the embodiment of the invention is described in detail with reference to fig. 2.

(1) The access node periodically sends broadcast packets, and the first-level sink node and the first-level sensing unit realize time synchronization with the access node by receiving the broadcast packets.

(2) The method comprises the steps that an access node sends a scheduling control packet containing current communication time slot distribution information, a first-stage sink node and a first-stage sensing unit receive the scheduling control packet sent by the access node, analyze the current time slot distribution information, select one time slot from unallocated time slots, and send a random access application message containing equipment ID identification and communication address information to the access node; after receiving the application sent by the sink node, the access node registers the equipment; and then, sending a scheduling control packet containing the ID and address information of the registered equipment, and sending a registration success response by the first-stage sink node and the first-stage sensing unit after receiving the control packet containing the ID information of the equipment.

(3) The access node carries out time slot scheduling configuration according to the registered equipment configured with information such as an uploading period, an uploading data length and the like, and issues a communication time slot scheduling instruction to the first-stage sink node and the first-stage sensing unit, and the first-stage sink node and the first-stage sensing unit store and confirm the communication time slot of the equipment according to the received scheduling instruction and send a time slot scheduling confirmation packet according to the appointed time slot.

(4) If the access node does not locally have information such as the uploading period, the uploading data length and the like of the registered equipment, a temporary communication time slot configuration time slot scheduling table is added according to the request of the sink node or the random channel of the sensing unit, and the time slot scheduling is realized in the process of (3).

(5) The access node performs time slot scheduling on all the network-injected first-stage sink nodes or sensing units, allocates a time slot number for broadcasting to each first-stage sink node, and staggers time points of each first-stage sink node for forwarding a broadcast packet and a time slot scheduling control packet.

(6) And all the first-stage sink nodes which are allocated with the forwarding time slot numbers forward and receive the broadcast packets according to the respective allocated time slots in each next broadcast period.

(7) And the second-level sink node or the second-level sensor receives the broadcast packet forwarded by the first-level sink node, and time synchronization is also realized.

(8) If (2), the first-stage sink node sends a scheduling control packet containing current communication time slot allocation information, and after receiving the scheduling control packet sent by the access node, the second-stage sink node and the second-stage sensing unit analyze the current time slot allocation information, select one time slot from the unallocated time slots, and send a random access application message containing equipment ID identification and communication address information to the first-stage sink node; after receiving the access application message, the first-level sink node forwards the message to the access node according to the allocated time slot; after receiving the application sent by the second-level aggregation node, the access node performs equipment registration; and then, sending a scheduling control packet containing the ID and address information of the registered equipment, registering the equipment information and forwarding to the applied equipment after the first-stage sink node receives the control packet containing the ID information of the equipment, and sending a successful registration response after the second-stage sink node or the second-stage sensor receives the control packet containing the ID information of the equipment.

(9) The access node also requests to increase a temporary communication time slot according to the configured information such as the uploading period, the uploading data length and the like or a random channel to carry out time slot scheduling configuration on the second-level registration equipment, and issues a communication time slot scheduling instruction, the communication time slot scheduling instruction is sent to the second-level aggregation node or the sensing unit through the first-level aggregation node, the second-level aggregation node and the second-level sensing unit store and confirm the communication time slot of the equipment according to the received scheduling instruction, and a time slot scheduling confirmation packet is sent according to the specified time slot.

(10) And by parity of reasoning, the registration and scheduling of the third-level and all slave devices at the access node end are completed.

In conclusion, the invention adopts a cluster-type and chain-type topological structure, realizes the reliable transmission of the sensing data tower by tower and multi-hop through a communication time slot allocation and dormancy scheduling mechanism, constructs the power transmission line internet of things communication network, thereby realizing the uniform aggregation and forwarding of sensing data, solving the problems of uniform aggregation and uniform access of the data of the on-line monitoring sensing unit of the power transmission line, chain type networking without a signal area, improvement of the reliability of equipment and the like, realizing the uniform access, data analysis and data forwarding of various sensing equipment, meeting the requirements of flexible networking and coverage of different scenes, realizing the intensive, standardized management and interconnection application of the professional data of power transmission, and the data value is deeply mined in combination with practical application, the real-time sensing of state information, the autonomous early warning of a power grid and the intelligent decision making capability are improved, and the effective sharing of resources and data among various professions, departments and industries is realized.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting the protection scope thereof, and although the present invention has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that after reading the present invention, they can make various changes, modifications or equivalents to the specific embodiments of the present invention, but these changes, modifications or equivalents are within the protection scope of the appended claims.

Claims

1. A wireless chain type ad hoc network method for a power transmission Internet of things is characterized by comprising the following steps:

2. The wireless chain type ad hoc network method of the power transmission internet of things according to claim 1, wherein a convergence unit in direct communication with an access node is a direct convergence unit; the access node completes the random access of the direct convergence unit through the following steps:

3. The wireless chain type ad hoc network method for the transmission of the internet of things according to claim 2, wherein the random access application comprises a registration application and a time slot application; the access node receives a random access application sent by the direct aggregation unit and completes random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

4. The wireless chain type ad hoc network method of the power transmission internet of things according to claim 1, wherein a convergence unit in direct communication with an access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit; the access node completes the random access of the indirect convergence unit through the following steps:

5. The method according to claim 4, wherein the random access application includes a registration application and a slot application; the access node receives the random access application forwarded by the direct aggregation unit and completes the random access of the corresponding indirect aggregation unit, and the method specifically comprises the following steps:

6. The method for wireless chain type ad hoc network of the power transmission internet of things according to claim 1, wherein before the step of the access node sending the timeslot allocation information control packet, the method further comprises:

7. A wireless chain type ad hoc network method for a power transmission Internet of things is characterized by comprising the following steps:

8. The power transmission internet of things wireless chain type ad hoc network method according to claim 7, wherein: the convergence unit which is directly communicated with the access node is a direct convergence unit, and the direct convergence unit is accessed to the access node through the following steps;

9. The wireless chain type ad hoc network method for the transmission of the internet of things according to claim 8, wherein the random access application comprises a registration application and a time slot application; the method comprises the following steps that an idle time slot is selected to send a random access application to an access node based on current time slot allocation information, so that the access node receives the random access application sent by a direct aggregation unit and completes the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the direct convergence unit stores respective communication time slots.

10. The power transmission internet of things wireless chain type ad hoc network method according to claim 7, wherein: the convergence unit which is directly communicated with the access node is a direct convergence unit, the convergence unit which is communicated with the access node through other convergence units is an indirect convergence unit, and the indirect convergence unit is accessed to the access node through the following steps:

11. The power transmission internet of things wireless chain type ad hoc networking method according to claim 10, wherein: the random access application comprises a registration application and a time slot application; the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application, and specifically comprises the following steps:

the indirect convergence unit sends a registration success response message to the direct convergence unit based on the received scheduling control packet, and the method for acquiring the scheduling control packet comprises the following steps: the indirect aggregation unit sends a registration application to the direct aggregation unit, so that the direct aggregation unit forwards the received registration application to the access node, and the access node completes the registration of the corresponding indirect aggregation unit based on the received registration application; the indirect convergence unit sends a time slot application to the direct convergence unit, so that the direct convergence unit forwards the received time slot application to the access node, and the access node sends a scheduling control packet based on the received time slot application, wherein the scheduling control includes that the direct convergence unit registers information corresponding to the indirect convergence unit and forwards the scheduling control packet to the corresponding indirect convergence unit;

12. The utility model provides a wireless chain ad hoc network device of transmission of electricity thing networking which characterized in that, includes access node, access node includes:

13. The wireless chain type ad hoc network device of the transmission internet of things according to claim 12, wherein the aggregation unit in direct communication with the access node is a direct aggregation unit;

14. The wireless chain type ad hoc network device of claim 13, wherein the random access application comprises a registration application and a slot application; the execution module is used for receiving the random access application sent by the direct convergence unit and completing the random access corresponding to the direct convergence unit, and specifically comprises the following steps:

15. The wireless chain type ad hoc network device of the transmission internet of things according to claim 12, wherein a convergence unit in direct communication with an access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit;

16. The wireless chain type ad hoc network device of claim 15, wherein the random access application comprises a registration application and a slot application; the execution unit receives the random access application forwarded by the direct aggregation unit and completes the random access corresponding to the indirect aggregation unit, and the method specifically comprises the following steps:

17. The utility model provides a wireless chain of transmission of electricity thing networking is from network deployment device which characterized in that, includes the unit that assembles, it includes to assemble the unit:

18. The wireless chain type ad hoc network device of claim 17, wherein the aggregation unit in direct communication with the access node is a direct aggregation unit, and the direct aggregation unit comprises:

19. The wireless chain type ad hoc network device of claim 18, wherein the random access application comprises a registration application and a slot application; the method comprises the following steps that an idle time slot is selected to send a random access application to an access node based on current time slot allocation information, so that the access node receives the random access application sent by a direct aggregation unit and completes the random access of the corresponding direct aggregation unit, and the method specifically comprises the following steps:

the direct execution module saves the respective communication time slot.

20. The wireless chain type ad hoc network device of the power transmission internet of things according to claim 17, wherein a convergence unit in direct communication with an access node is a direct convergence unit, and a convergence unit in communication with the access node through other convergence units is an indirect convergence unit; the indirect convergence unit includes:

21. The power transmission internet of things wireless chain type ad hoc network method according to claim 20, wherein: the random access application comprises a registration application and a time slot application; the random access application is used for enabling the access node to complete the random access of the indirect convergence unit based on the received random access application, and specifically comprises the following steps:

22. The wireless chain type ad hoc network device of the power transmission internet of things according to claim 17, wherein: the aggregation unit comprises an aggregation node and a sensing unit.