CN113949946A - Power equipment body area network system based on dual-mode communication and self-networking method thereof - Google Patents
Power equipment body area network system based on dual-mode communication and self-networking method thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
- H04Q2209/43—Arrangements in telecontrol or telemetry systems using a wireless architecture using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
The invention discloses a power equipment body area network system based on dual-mode communication, which finally sends acquired information to a connection power distribution automation master station system, wherein the power equipment body area network system comprises a totally-enclosed power distribution area and an area control terminal arranged outside the power distribution area; the power equipment layer, the peripheral perception layer and the intelligent cable terminal are arranged in the power distribution area, signals of the power equipment layer, the peripheral perception layer and the intelligent cable terminal are sequentially communicated, the intelligent cable terminal is connected with the area control terminal, and the power distribution automation main station system is connected through the area control terminal. The power equipment body area network system can economically, reliably, automatically and intelligently transmit the equipment state and the communication network construction mode of the equipment surrounding environment information, reduces the investment of manpower for power equipment maintenance, and can efficiently ensure the safe and high-quality operation of the power equipment at the tail end of the distribution network in the totally-enclosed metal structures such as the distribution transformer comprehensive cabinet, the outgoing line cabinet, the branch box and the ammeter box in the distribution area range.
Description
Technical Field
The invention relates to the technical field of power equipment monitoring, in particular to a power equipment body area network system based on dual-mode communication and an ad hoc network method thereof.
Background
When the power equipment is in operation, the power equipment is subjected to electric, thermal and mechanical load action and the influence of natural environment (air temperature, air pressure, humidity, filth and the like), and aging, fatigue and abrasion are caused by long-term operation, so that the performance is gradually reduced, and the reliability is gradually reduced. Under the long-term action of high voltage and high temperature, the insulating material of the equipment changes in components and structure, increases dielectric loss, reduces insulating property and finally causes damage to the insulating property; insulators working in the atmosphere are also affected by environmental pollution, and the surface insulation performance is reduced, thereby causing creeping discharge failure. These degradation processes are generally slow gradual processes. As the operation period of the equipment increases, the performance gradually decreases, the reliability gradually decreases, the failure rate of the equipment gradually increases, the safe operation of the system may be endangered, and the operation state of the equipment must be monitored, checked and maintained.
One of the traditional methods for maintaining the operating state of the power equipment is frequent manual inspection and periodical preventive maintenance and test. The person on duty regularly patrols and judges according to appearance phenomena, indicating instruments and the like, and possible abnormity of the power equipment is found, so that accidents are avoided; the method comprises the steps of regularly carrying out routine inspection of stopping operation on the power equipment, carrying out preventive insulation test and mechanical action test, timely treating structural defects and the like. The regular inspection and maintenance system plays an important role in ensuring the safe operation of the power equipment. With the explosive growth of power equipment and the development of sensing technology and computer technology, the maintenance of the operating state of the power equipment is developing towards automation and intellectualization. The novel power equipment with a state monitoring function sensor is a foundation for forming an automatic power system; the development of the microelectronic technology and the computer technology provides a powerful tool for recording, processing and judging sensor signals, can also execute necessary control operation, and provides possibility for intelligent control of a power system.
The maintenance of the running state of the power equipment is mainly based on regular manual patrol and is assisted by an automatic equipment state monitoring technology. The defects of the manual inspection and regular preventive maintenance and test mode are as follows: the method has the advantages that faults are not found timely, the detection efficiency is low, the human resource and time cost is high, the normal operation of the power equipment cannot be effectively guaranteed, the requirement for fine management of the equipment is difficult to meet, and the national requirement for high reliability of power supply cannot be met; the automatic detection of the equipment state depends on an information communication technology, the wireless communication has the advantages of convenience and high efficiency, but under the situation that the current wireless communication system is applied in a large amount, various electromagnetic waves flood in the space and the signal environment is increasingly complex, the holographic sensing information of the electric and environmental parameters and the running state of the power equipment in the closed box bodies such as a distribution transformer comprehensive cabinet, an outgoing line cabinet, a branch box, an electricity meter box and the like is easily interfered by other signals if the power equipment state sensing information is transmitted in a wireless communication mode, the information transmission is unstable, the transmission rate is uncertain, and the information exchange effect and the quality are difficult to guarantee. The power carrier communication uses a power line to transmit signals, and is a special communication means preferentially adopted by the power industry. The voice signal is sent to a transmitting branch of a Power Line Carrier (PLC), modulated into a high-frequency signal of 40-500 kHz, sent to one-phase or two-phase conductors of a high-voltage power line through a combination device, sent to the other side through the combination device of the other side, sent to a receiving branch of the power line carrier through the combination device of the other side, and demodulated and restored into the voice signal. The power line carrier communication has the advantages that the power transmission line has a firm supporting structure, and the power line carrier communication is economical and very reliable when the power line carrier communication transmits carrier signals at the same time of transmitting power frequency current. The power carrier communication has the following defects: 1. can only transmit in the range of one distribution transformer area; 2. signals can only be transmitted on a single-phase power line; 3. the existing method has the disadvantages of pulse interference, signal loss and relatively poor communication quality. 4. When the load on the power line is heavy, the line impedance can reach below 1 ohm, resulting in high reduction of the carrier signal.
In conclusion, wireless communication and power line carrier communication modes have advantages and disadvantages, and are not suitable for the environment for collecting electrical and environmental parameters in a closed space and for accurately sensing the running state of equipment in real time.
Through searching the published patents, the following patent documents most relevant to the technical scheme are found:
CN102968891A discloses a can be at power equipment transportation in-process comprehensive monitoring power equipment, real-time transmission quality data, in time report the ad hoc network data collection circuit of the power equipment transportation quality of trouble, it adopts ZigBee treater of purple bee, this treater includes main control unit, data acquisition module, data processing module, data output module, main control unit respectively with data acquisition module, data processing module, data output module is connected, the thermometer, collide record appearance, gas pressure gauge, the tilt sensor, displacement sensor is connected to the data acquisition module of zigBee treater respectively, data output module is connected with mobile communication's main equipment through serial interface. A method of using the ad hoc network data collection circuit is also provided.
Through analysis, the ad hoc network data collection circuit in the above-mentioned patent publication has great difference with the present application in terms of system structure, networking protocol, data transmission path and implementation function of the body area network, so that the novelty of the present application is not affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a power equipment body area network system based on dual-mode communication and an ad hoc network method thereof.
A power equipment body area network system based on dual-mode communication finally sends acquired information to a connection distribution automation master station system, and comprises a totally-enclosed distribution area and an area control terminal arranged outside the distribution area; the power equipment layer, the peripheral perception layer and the intelligent cable terminal are arranged in the power distribution area, signals of the power equipment layer, the peripheral perception layer and the intelligent cable terminal are sequentially communicated, the intelligent cable terminal is connected with the area control terminal, and the power distribution automation main station system is connected through the area control terminal.
Moreover, a plurality of power devices are distributed in the power device layer; a plurality of peripheral sensing devices are distributed in the peripheral sensing layer; the peripheral sensing devices respectively collect the environmental information of single or multiple pieces of power equipment, and the peripheral sensing devices are respectively connected with the intelligent cable terminal.
And, the intelligent cable terminal is a wireless/carrier wave intelligent cable terminal, and the wireless/carrier wave intelligent cable terminal is connected with the station area control terminal in a wired or wireless way.
An ad hoc network method of a power equipment body area network based on dual-mode communication comprises the following steps:
the method comprises the following steps: the method comprises the steps that a platform area control terminal is used as a main node device, an intelligent cable terminal is used as a slave node device, the main node device monitors surrounding network conditions and configures network parameters including network identifiers, beacon period lengths and time slot division;
step two: the master node equipment generates a beacon frame according to the network parameters and sends the beacon frame to the slave node equipment in a wired and wireless mode;
step three: the master node equipment continuously monitors and judges whether a network access application sent by peripheral slave node equipment is received;
step four: after receiving the network access application frame sent by the slave node equipment, the master node equipment compares the network access application frame with a white list stored by the master node equipment and verifies the identity of the slave node equipment; if the verification fails, the master node equipment sends a network access rejection frame to the slave node equipment; if the verification is passed, an address is allocated to the slave node equipment according to the communication mode of the slave node equipment, and a network access confirmation frame is sent to the slave node equipment by the master node equipment;
step five: if the slave point electric equipment receives the network access confirmation frame, the connection address is configured, and the network access is successful; if the network access rejection frame is received, restarting a network monitoring process and trying to join other main node equipment networks;
step six: and the slave node equipment successfully accesses the network, and the working process of the master node equipment of the dual-mode communication ad hoc network is finished. .
Furthermore, the slave node device in step four selects the wired communication mode or the wireless communication mode according to the rate and the received signal strength.
The invention has the advantages and technical effects that:
the invention relates to a power equipment body area network system based on dual-mode communication and an ad hoc network method thereof, wherein a power equipment body area network is built by adopting a dual-mode communication terminal and a wireless carrier dual-mode communication technology, wherein the dual-mode communication terminal and a micropower wireless network are mutually backups, and the system has the following advantages: 1. the method creatively applies the body area network concept to the tail-end power equipment state Internet of things perception, builds the power equipment body area network and provides a solution of last one hundred meters for the power equipment perception layer; 2. the advantages of power line carrier communication and wireless communication modes are fully exerted, a power line carrier transmission medium is directly applied to a power line, extra deployment is not needed, and the micropower wireless deployment position and the flexibility of networking expansion are achieved; 3. the intelligent switching between the power line carrier and the micropower wireless overcomes the defects of large variation at any time, place and frequency of power line carrier communication or a single channel of a wireless channel, and can support the reliable and safe transmission of the sensing information at the tail end of a power equipment network; 4. providing a power equipment body area network transmission protocol supporting ultra-low power consumption and a cross-physical layer transmission technology, and realizing interconnection, intercommunication and interoperation of an application layer with a control platform; 5. the invention can effectively solve the problems that the sensing data of the internal state is lack of an effective outward transmission mechanism, the data transmission is difficult and the like when the power equipment is in a totally closed metal structure, and lays a foundation for realizing more intelligent sensing and control of the power equipment; 6. the coverage area of the body area network system of the power equipment is small and limited in the range of the transformer area, short-distance communication is achieved, power consumption is low, and investment is small.
Drawings
FIG. 1 is a prior art network architecture diagram of a wireless body area network;
FIG. 2 is a network architecture diagram of a body area network of power equipment in accordance with the present invention;
FIG. 3 is a diagram of a networking protocol architecture of a body area network of a power device in accordance with the present invention;
FIG. 4 is a flowchart illustrating the operation of a master node device in the process of ad hoc networking according to the present invention;
FIG. 5 is a flow chart of the operation of a slave node device in the ad hoc network process of the present invention;
Detailed Description
For a further understanding of the contents, features and effects of the present invention, reference will now be made to the following examples, which are to be considered in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
A power equipment body area network system based on dual-mode communication finally sends acquired information to a connection distribution automation master station system, and comprises a totally-enclosed distribution area and an area control terminal arranged outside the distribution area; the power equipment layer, the peripheral perception layer and the intelligent cable terminal are arranged in the power distribution area, signals of the power equipment layer, the peripheral perception layer and the intelligent cable terminal are sequentially communicated, the intelligent cable terminal is connected with the area control terminal, and the power distribution automation main station system is connected through the area control terminal.
Moreover, a plurality of power devices are distributed in the power device layer; a plurality of peripheral sensing devices are distributed in the peripheral sensing layer; the peripheral sensing devices respectively collect the environmental information of single or multiple pieces of power equipment, and the peripheral sensing devices are respectively connected with the intelligent cable terminal.
And, the intelligent cable terminal is a wireless/carrier wave intelligent cable terminal, and the wireless/carrier wave intelligent cable terminal is connected with the station area control terminal in a wired or wireless way.
An ad hoc network method of a power equipment body area network based on dual-mode communication comprises the following steps:
the method comprises the following steps: the method comprises the steps that a platform area control terminal is used as a main node device, an intelligent cable terminal is used as a slave node device, the main node device monitors surrounding network conditions and configures network parameters including network identifiers, beacon period lengths and time slot division;
step two: the master node equipment generates a beacon frame according to the network parameters and sends the beacon frame to the slave node equipment in a wired and wireless mode;
step three: the master node equipment continuously monitors and judges whether a network access application sent by peripheral slave node equipment is received;
step four: after receiving the network access application frame sent by the slave node equipment, the master node equipment compares the network access application frame with a white list stored by the master node equipment and verifies the identity of the slave node equipment; if the verification fails, the master node equipment sends a network access rejection frame to the slave node equipment; if the verification is passed, an address is allocated to the slave node equipment according to the communication mode of the slave node equipment, and a network access confirmation frame is sent to the slave node equipment by the master node equipment;
step five: if the slave point electric equipment receives the network access confirmation frame, the connection address is configured, and the network access is successful; if the network access rejection frame is received, restarting a network monitoring process and trying to join other main node equipment networks;
step six: and the slave node equipment successfully accesses the network, and the working process of the master node equipment of the dual-mode communication ad hoc network is finished. .
Furthermore, the slave node device in step four selects the wired communication mode or the wireless communication mode according to the rate and the received signal strength.
To more clearly illustrate the embodiments of the present invention, the following description is made of the wireless body area network architecture in the prior art:
a network architecture diagram of a wireless body area network in the prior art is shown in fig. 1, (1) a wireless body area network WBAN in the prior art is a short-distance wireless communication network which takes a human body as a center and is formed by mutually connecting a special sensor attached to the surface of the human body or implanted in the human body and portable mobile equipment (such as a mobile phone, a PDA, and the like) existing around the human body; (2) the existing wireless body area network communication path is that a portable mobile device and a sensor send wireless signals, the wireless signals are collected by a close-range sink node and then transmitted to a remote control node through the Internet; (3) the existing wireless body area network can continuously monitor various physiological parameters (such as heart rate, body temperature, blood pressure, electroencephalogram (EEG), Electrocardiogram (ECG) and the like) of a human body and body motion state and surrounding environment information, and forwards the information to a remote monitoring center as required, so that the wireless body area network can be widely applied to the aspects of remote medical treatment, entertainment activities, emergency treatment, physical training, health care services and the like; (4) according to the ieee802.15.6 standard, wireless body area networks are approved by the Federal Communications Commission (FCC) of the united states for ultra-wideband wireless communication networks using impulse radio (UWB), specifically using narrow bandwidth communications in the 40MHz to 2400MHz band frequencies. The wireless body area network is a very small wireless local area network, and the coverage area is very small and is approximately within 1-2 m.
The network architecture diagram of the power equipment body area network is shown in fig. 2, (1) a power equipment 1, a power equipment 2 … and a power equipment n refer to all power equipment bodies in a totally-enclosed structure of a power distribution area, are sources of equipment state information needing to be sensed and transmitted, and can be connected with peripheral sensing devices in a wired mode; (2) the peripheral sensing device 1, the peripheral sensing device 2 …, the peripheral sensing device n, refers to a generic name of various sensors capable of detecting electrical and environmental devices, including but not limited to power-off sensors, operation sensors, device stop sensors, over-temperature sensors, humidity sensors, smoke and fire sensors, anti-theft sensors, voltage sensors, current sensors, image sensors, etc., and the peripheral sensing device is used for monitoring the temperature, humidity, electrical signals, electromagnetic signal strength of the power devices and their peripheral environments, and is a hand grip for acquiring various data and parameters in the distribution substation area. According to the state of the electrical equipment and the monitoring requirement of the surrounding environment, one electrical equipment can be connected with a plurality of surrounding sensing devices, and the surrounding sensing devices can also be independent of the electrical equipment (such as temperature and humidity sensors). The peripheral sensing device is connected with the wireless/carrier intelligent cable terminal in a wired mode and is responsible for transmitting the collected power equipment and the peripheral environment information thereof to the wireless/carrier intelligent cable terminal; (3) the wireless/carrier wave intelligent cable terminal does not have a data acquisition function and is responsible for transmitting information data in a totally-enclosed structure of a power distribution transformer substation to the transformer substation terminal. The wireless/carrier wave intelligent cable terminal establishes information data transmission connection with the station area terminal in a wired and wireless mode; (4) the power distribution automation master station system is connected with the power equipment body area network in a wired mode and is responsible for monitoring the real-time operation condition of a distribution network and managing the operation equipment of the whole distribution network.
The networking protocol architecture diagram of the power equipment body area network is shown in fig. 3, (1) the self-networking mode of dual-mode communication, and the key is the converged network protocol architecture; (2) the converged network protocol architecture is divided into three layers, namely a physical layer, an MAC layer and a network layer from bottom to top; (3) the power line and the wireless network are fused on an MAC layer, namely a fusion communication module is arranged in two terminals applying dual-mode communication mutually, and the fusion communication module is provided with 2 mutually independent physical layers, namely, more than one MAC layer; (4) among communication terminals, power lines are in butt joint with power lines, and wireless butt joint is achieved.
Fig. 4 shows a work flow diagram of a master node device in the ad hoc network process of the present invention, in which a cell control terminal device is a master node and a wireless/carrier wave intelligent cable terminal device is a slave node, and the work flow is as follows:
(1) first, the master node device is powered on.
(2) And secondly, monitoring the surrounding network condition and configuring network parameters including a network identifier, a beacon period length, a time slot division and the like by the main node equipment.
(3) And thirdly, the main node equipment generates a beacon frame according to the network parameters and sequentially transmits the beacon frame in a power line and wireless mode.
(4) And fourthly, continuously monitoring by the main node equipment, and judging whether a network access application sent by the surrounding slave node equipment is received.
(5) And fifthly, after receiving the network access application frame sent by the slave node equipment, the master node equipment compares the network access application frame with a white list stored by the master node equipment, and verifies the identity of the slave node equipment. A
(6) And sixthly, if the verification fails, the master node equipment sends a network access rejection frame to the slave node equipment.
(7) And seventhly, if the verification is passed, allocating an address to the slave node device according to the communication mode (power line/wireless) of the slave node device.
(8) And eighthly, the master node equipment sends a network access confirmation frame to the slave node equipment.
(9) Step nine, if the slave electric equipment receives the network access confirmation frame, the slave electric equipment configures a connection address, and the network access is successful; if the network access refusal frame is received, the network monitoring process is restarted to try to join other networks.
(10) And the slave node equipment successfully accesses the network, and the working process of the master node equipment of the dual-mode communication ad hoc network is finished.
In the ad hoc network process of the present invention, the working flow chart of the slave node device is shown in figure 5,
the platform district control terminal equipment is the master node, and wireless/carrier wave intelligent cable terminal equipment is the slave node, and its work flow is as follows:
(1) in the first step, the slave node device is powered on.
(2) In the second step, the slave node device searches for the existing network around, i.e. via the power line and the wireless monitoring channel, respectively.
(3) Thirdly, the slave node equipment judges whether the beacon frame sent by the master node is received or not through channel monitoring, and if the beacon frame is not received, the network monitoring is started again through the power line and the wireless mode
(4) And fourthly, if the beacon frame is received, selecting a communication mode, namely a power line or a wireless mode according to the strength of the communication signal.
(5) And fifthly, sending a network access application frame to the main node equipment through the selected communication mode.
(6) And sixthly, if the network access refusing frame is received, the slave node equipment starts network monitoring again through the power line and wirelessly.
(7) And seventhly, the slave node equipment successfully accesses the network, and the work flow of the slave node equipment of the dual-mode communication ad hoc network is finished.
The body area network of the power equipment consists of the power equipment in a totally-enclosed structure of a distribution area (such as a distribution transformer comprehensive cabinet, an outgoing line cabinet, a branch box and an electric meter box), sensing devices around the power equipment, a wireless/carrier intelligent cable terminal (serving as a data aggregation and transmission node) and an area control terminal. The sensing device around the power equipment collects the power equipment and the surrounding electrical environment information (such as current, voltage, power, indoor temperature, gas concentration, humidity and the like), and transmits the collected information to the platform area control terminal through the wireless/carrier intelligent cable terminal. Referring to the wireless body area network, the power equipment body area network is connected with the power distribution automation master station system through the distribution area control terminal. The schematic diagram and the description of the body area network structure of the power equipment are shown in fig. 2.
In addition, the power station area is a term of power economy operation management, and particularly refers to a power supply range or area of a transformer in a power system, and the area of the area is usually small and is within a range of several meters.
Moreover, in the energy industry oriented power equipment body area network, the dual-mode communication ad hoc network only relates to two devices, namely the wireless/carrier intelligent cable terminal and the distribution room control terminal in the step S2. The communication among the power equipment, the sensing devices around the power equipment, the wireless/carrier intelligent cable terminal and other equipment in the fully-closed structure of the distribution transformer (such as a distribution transformer comprehensive cabinet, an outgoing line cabinet, a branch box and an electricity meter box) adopts a power line communication mode, and the communication between the wireless/carrier intelligent cable terminal and the station control terminal adopts a dual-mode communication mode of power line and wireless integration.
Moreover, the body area network of the power equipment adopts a dual-mode communication technology. The dual-mode communication between the platform area control terminal equipment and the wireless/carrier wave intelligent cable terminal equipment is realized, and two types of terminals are internally provided with a wired physical module and a wireless physical module. The key of the dual-mode communication lies in a converged network protocol architecture, wherein the network protocol architecture is that the wired and wireless networks are mutually independent in a physical layer; but both at the MAC layer and the network layer are the same. Between two devices of dual-mode communication, a wired module is communicated with a wired carrier module, and a wireless module is communicated with a wireless module. Fig. 3 is a schematic diagram and an illustration of a power dual-mode communication ad hoc network protocol architecture.
It should be noted that, in the method for ad hoc networking of a body area network of a power device of the present invention, the fourth step is a key step. In the aspect of the ad hoc network process, the platform area control terminal device is a master node, the wireless/carrier wave intelligent cable terminal device is a slave node, and only the master node device can initiate a network establishment process. The slave node equipment can only search the existing networks around the slave node equipment, then applies for joining the existing networks, and if the slave node equipment receives signals from the master node from the power line and the wireless network, one communication mode is selected preferentially according to the factors such as the speed, the strength of the received signals and the like. The low power consumption and the communication reliability of the network are ensured through the dual-mode communication ad hoc network. The working flow and the description of the main node in the ad hoc network process are shown in fig. 4, and the working flow and the description of the slave node in the ad hoc network process are shown in fig. 5.
Finally, the invention adopts the mature products and the mature technical means in the prior art.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a power equipment body area network system based on bimodulus communication, this power equipment body area network system will gather information final sending and connect distribution automation master station system which characterized in that: the power equipment body area network system comprises a totally-enclosed power distribution area and an area control terminal arranged outside the power distribution area; the power distribution automation main station system is characterized in that a power equipment layer, a peripheral sensing layer and an intelligent cable terminal are arranged in the power distribution area, the power equipment layer, the peripheral sensing layer and the intelligent cable terminal are sequentially communicated through signals, the intelligent cable terminal is connected with an area control terminal, and the power distribution automation main station system is connected with the area control terminal.
2. The system of claim 1, wherein the system comprises: a plurality of power devices are distributed in the power device layer; a plurality of peripheral sensing devices are distributed in the peripheral sensing layer; the peripheral sensing devices respectively collect the environmental information of single or multiple pieces of power equipment, and the peripheral sensing devices are respectively connected with the intelligent cable terminal.
3. A dual-mode communication based power equipment body area network system according to claim 1 or 2, characterized in that: the intelligent cable terminal is a wireless/carrier wave intelligent cable terminal, and the wireless/carrier wave intelligent cable terminal is connected with the distribution room control terminal in a wired or wireless mode.
4. The ad-hoc networking method of the body area network of the electric device based on the dual mode communication according to claim 1, comprising the steps of:
the method comprises the following steps: the method comprises the steps that a platform area control terminal is used as a main node device, an intelligent cable terminal is used as a slave node device, the main node device monitors surrounding network conditions and configures network parameters including network identifiers, beacon period lengths and time slot division;
step two: the master node equipment generates a beacon frame according to the network parameters and sends the beacon frame to the slave node equipment in a wired and wireless mode;
step three: the master node equipment continuously monitors and judges whether a network access application sent by peripheral slave node equipment is received;
step four: after receiving the network access application frame sent by the slave node equipment, the master node equipment compares the network access application frame with a white list stored by the master node equipment and verifies the identity of the slave node equipment; if the verification fails, the master node equipment sends a network access rejection frame to the slave node equipment; if the verification is passed, an address is allocated to the slave node equipment according to the communication mode of the slave node equipment, and a network access confirmation frame is sent to the slave node equipment by the master node equipment;
step five: if the slave point electric equipment receives the network access confirmation frame, the connection address is configured, and the network access is successful; if the network access rejection frame is received, restarting a network monitoring process and trying to join other main node equipment networks;
step six: and the slave node equipment successfully accesses the network, and the working process of the master node equipment of the dual-mode communication ad hoc network is finished.
5. The system of claim 4, wherein the system comprises: the slave node equipment in the fourth step selects the wired communication mode or the wireless communication mode preferentially according to the rate and the received signal strength factor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115103389A (en) * | 2022-06-15 | 2022-09-23 | 国网山东省电力公司武城县供电公司 | Power distribution network fault indication method |
| CN115174298A (en) * | 2022-06-02 | 2022-10-11 | 杭州粒合信息科技有限公司 | Dual-mode networking method and related device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046935A (en) * | 2015-08-13 | 2015-11-11 | 青岛东软载波科技股份有限公司 | Dual mode heterogeneous communication system based on low voltage power line and micropower wireless |
| CN105722228A (en) * | 2016-02-02 | 2016-06-29 | 同济大学 | Wireless body area network oriented controllable time delay multi-channel MAC protocol |
| CN105788206A (en) * | 2016-01-07 | 2016-07-20 | 江苏省电力公司电力科学研究院 | Electricity information acquisition system based on dual-mode communication and method thereof |
| CN108401041A (en) * | 2018-03-20 | 2018-08-14 | 重庆邮电大学 | A kind of bimodulus heterogeneous network group-net communication method towards electric power information collection system |
| CN110191029A (en) * | 2019-04-25 | 2019-08-30 | 深圳市国电科技通信有限公司 | It is a kind of based on wired and wireless mixing alternative working mode method |
| CN110856194A (en) * | 2019-11-13 | 2020-02-28 | 珠海中慧微电子有限公司 | Dual-mode fusion networking method and communication method |
| CN111200858A (en) * | 2020-01-02 | 2020-05-26 | 珠海中慧微电子有限公司 | Networking scheme of dual-mode hybrid network based on broadband carrier and narrowband wireless |
| CN113259887A (en) * | 2021-04-21 | 2021-08-13 | 北京智芯微电子科技有限公司 | Power distribution body area network and transmission method thereof |
| CN113271586A (en) * | 2021-04-16 | 2021-08-17 | 北京智芯微电子科技有限公司 | Power equipment body area network safety communication method and system and storage medium |
-
2021
- 2021-09-10 CN CN202111059032.5A patent/CN113949946A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046935A (en) * | 2015-08-13 | 2015-11-11 | 青岛东软载波科技股份有限公司 | Dual mode heterogeneous communication system based on low voltage power line and micropower wireless |
| CN105788206A (en) * | 2016-01-07 | 2016-07-20 | 江苏省电力公司电力科学研究院 | Electricity information acquisition system based on dual-mode communication and method thereof |
| CN105722228A (en) * | 2016-02-02 | 2016-06-29 | 同济大学 | Wireless body area network oriented controllable time delay multi-channel MAC protocol |
| CN108401041A (en) * | 2018-03-20 | 2018-08-14 | 重庆邮电大学 | A kind of bimodulus heterogeneous network group-net communication method towards electric power information collection system |
| CN110191029A (en) * | 2019-04-25 | 2019-08-30 | 深圳市国电科技通信有限公司 | It is a kind of based on wired and wireless mixing alternative working mode method |
| CN110856194A (en) * | 2019-11-13 | 2020-02-28 | 珠海中慧微电子有限公司 | Dual-mode fusion networking method and communication method |
| CN111200858A (en) * | 2020-01-02 | 2020-05-26 | 珠海中慧微电子有限公司 | Networking scheme of dual-mode hybrid network based on broadband carrier and narrowband wireless |
| CN113271586A (en) * | 2021-04-16 | 2021-08-17 | 北京智芯微电子科技有限公司 | Power equipment body area network safety communication method and system and storage medium |
| CN113259887A (en) * | 2021-04-21 | 2021-08-13 | 北京智芯微电子科技有限公司 | Power distribution body area network and transmission method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115174298A (en) * | 2022-06-02 | 2022-10-11 | 杭州粒合信息科技有限公司 | Dual-mode networking method and related device |
| CN115103389A (en) * | 2022-06-15 | 2022-09-23 | 国网山东省电力公司武城县供电公司 | Power distribution network fault indication method |
| CN115103389B (en) * | 2022-06-15 | 2023-09-22 | 国网山东省电力公司武城县供电公司 | Fault indication method for power distribution network |
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