CN107317397B - Power carrier communication-based Internet of things power supply management system and method - Google Patents
Power carrier communication-based Internet of things power supply management system and method Download PDFInfo
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- CN107317397B CN107317397B CN201710623723.0A CN201710623723A CN107317397B CN 107317397 B CN107317397 B CN 107317397B CN 201710623723 A CN201710623723 A CN 201710623723A CN 107317397 B CN107317397 B CN 107317397B
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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
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5433—Remote metering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5466—Systems for power line communications using three phases conductors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
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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
- Y04S40/128—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 involving the use of Internet protocol
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- Computer Networks & Wireless Communication (AREA)
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention relates to an Internet of things power supply management system and method based on power carrier communication. The electric equipment management terminal acquires and controls the electricity utilization condition of the electric equipment; the communication bridge circuit unit provides a bridge circuit for data exchange, realizes the hierarchical management of equipment in a plurality of laboratories and plants, and the power utilization management unit is used for monitoring the service condition of equipment power utilization and operating personnel. The invention solves the problems of monitoring the real-time state of the running information of the instrument and the equipment and early warning the potential safety hazard, realizes the real-time recording of the electricity consumption of the equipment and the operation condition of staff, and effectively evaluates the working efficiency of the staff and the use efficiency of the equipment.
Description
Technical Field
The invention relates to the field of Internet of things, in particular to a power supply management system and method of the Internet of things based on power line carrier communication.
Background
Generally speaking, the scientific research institutions or factories have a large number of devices and instruments and are distributed in different plants or laboratories, equipment operation and use information is counted manually, with the increase of the number of devices, workload is increased violently, and continuous records of the whole year are not easy to form.
Most products only record the use condition of the equipment or record the power utilization state of the equipment at the present stage, so that organic integration of people, equipment and operation information cannot be formed, and the requirement that managers accurately grasp the states of staff and equipment cannot be met.
Disclosure of Invention
In view of the above analysis, the invention aims to provide an internet of things power supply management system and method based on power line carrier communication, which solve the problems of monitoring the real-time state of the operation information of the instrument and equipment and early warning the potential safety hazard, realize the real-time recording of the use condition of the staff operating equipment, and effectively evaluate the working efficiency of the staff and the use efficiency of the equipment.
The purpose of the invention is mainly realized by the following technical scheme:
an Internet of things power supply management system based on power line carrier communication comprises: the power utilization equipment management terminal 1, the communication bridge unit 2 and the power utilization management unit 3;
the electric equipment management terminal 1 is connected with electric equipment, and is used for collecting and controlling the electricity utilization condition of the electric equipment and the personnel operation condition;
the communication bridge unit 2 is connected with all the electric equipment management terminals 1 arranged in the laboratory or the factory building through power lines, forms a sub-network of the power supply management system of the internet of things together with all the electric equipment management terminals 1, is connected with the electric management unit 3 through the power lines, and provides a bridge circuit for data exchange of all the electric equipment management terminals 1 and the electric management unit 3;
the power utilization management unit (3) is used for monitoring the power utilization of all power utilization equipment and the service condition of an operator.
Further, the electric equipment management terminal 1 includes a single-phase electric equipment management terminal 11 and a three-phase electric equipment management terminal 12, the single-phase electric equipment management terminal 11 is connected with the single-phase electric equipment, and the three-phase electric equipment management terminal 12 is connected with the three-phase electric equipment.
Further, the control circuit of the single-phase power consumption equipment management terminal 11 includes a main control unit 1191, a basic information acquisition unit 1192, a power consumption information acquisition unit 1193, an on-off control unit 1194, and a power carrier communication unit 1195;
the main control unit 1191 communicates with the power consumption management unit 3 through a power carrier communication unit 1195, sends the received information to the power consumption management unit 3, and receives control information sent by the power consumption management unit 3;
the basic information acquisition unit 1192 acquires the ID information of the electric equipment through the equipment rfid tag 117, acquires the ID information of the operator through the personnel rfid tag 118, thereby identifying the electric equipment and the operator, and outputs the identified ID information to the main control unit (1191);
the power utilization information acquisition unit 1193 is configured to acquire operation state information of the single-phase power utilization device, which includes information of power, voltage, current, power factor, and electric quantity;
the on-off control unit 1194 controls the on-off of the single-phase power supply of the electric equipment according to the control information received by the main control unit 1191;
the power carrier communication unit 1195 sends the information acquired by the basic information acquisition unit 1192 and the power consumption information acquisition unit 1193 to the power consumption management unit 3, and receives a control signal sent from the power consumption management unit 3.
Further, the control circuit of the three-phase electric equipment management terminal 12 includes a main control unit 1291, a basic information acquisition unit 1292, a three-phase electric information acquisition unit 1293, a three-phase on-off control unit 1294 and a power carrier communication unit (1295);
the main control unit 1291 communicates with the power consumption management unit 3 through a power carrier communication unit 1295, sends the received information to the power consumption management unit 3, and receives control information sent by the power consumption management unit 3;
the basic information collection unit 1292 collects ID information of electric devices through the device rfid 127, collects ID information of operators through the personnel rfid 128, thereby identifying the electric devices and the operators, and outputs the identified ID information to the main control unit 1291;
the three-phase power consumption information acquisition unit 1293 is used for acquiring running state information of the three-phase power consumption equipment, including power, voltage, current, power factor, electric quantity information, three-phase power phase sequence detection results, three-phase current and three-phase voltage balance detection results;
the three-phase on-off control unit 1294 controls the on-off of the power supply of the three-phase electric equipment according to the control information received by the main control unit 1291;
the power carrier communication unit 1295 transmits information acquired by the basic information acquisition unit 1292 and the three-phase power consumption information acquisition unit 1293 to the power consumption management unit 3, and receives a control signal transmitted from the power consumption management unit 3.
Furthermore, a metal nameplate 10 of the electric equipment is bound on a power line of each electric equipment; the metal nameplate 10 comprises a metal plate 101 and an electronic tag 102 of electric equipment; an electronic tag 102 is adhered to the back surface of the metal plate 101, and the electronic tag 102 is a metal-resistant electronic tag and records ID information of electric equipment.
Further, the communication bridge unit 2 includes a power carrier blocking module 21, an equipment management aggregation unit 22, and a first data transparent transmission unit 23;
the power carrier blocking module 21 comprises four reactors which are respectively arranged at the leading-out ends of a three-phase live wire and a zero wire of a main circuit breaker in the laboratory or the plant power distribution cabinet, and a power line is redistributed to each electric equipment management terminal 1 after passing through the power carrier blocking module 21;
the device management convergence unit 22 comprises a main control module A, a power line carrier communication module A and a serial communication module A; the equipment management convergence unit 22 is connected to the three-phase live wire, zero line and ground wire of the power line at the outlet end of the power carrier interception module 21; the power carrier communication module 21 is connected with a three-phase live wire, a zero line and a ground wire of a power line, the serial communication module a is connected with the serial communication module B of the first data transparent transmission unit 23, and the main control module a is connected with the power carrier communication module a and the serial communication module a;
the first data transparent transmission unit 23 comprises a main control module B, a power carrier communication module B and a serial communication module B; the serial communication module B of the data transparent transmission unit 23 is connected with the serial communication module A of the equipment management convergence unit 22, the power carrier communication module B is connected to a three-phase live wire, a zero line and a grounding wire of a power line of a main circuit breaker inlet end of a laboratory or factory building power distribution cabinet, and the main control module B is connected with the power carrier communication module B and the serial communication module B.
Further, the electricity management unit 3 includes a second data transparent transmission unit 31 and an equipment management server 32;
the second data transparent transmission unit 31 comprises a main control module C, a power carrier communication module C and a serial communication module C; the power carrier communication module C of the second data transparent transmission unit 31 is connected to the three-phase live wire, the zero wire and the ground wire of the power line output by the power central control room power distribution cabinet, and the serial communication module C of the second data transparent transmission unit 31 is connected to the serial port of the equipment management server 32;
the device management server 32 receives device ID information and operator ID information sent by the electric device management terminal 1 in the entire internet of things, sends power utilization control information to the corresponding electric device management terminal 1, and forms a corresponding electric device online log and a device operation use log; when the electric equipment is powered on, recording running state information of the electric equipment management terminal during the running of the collection equipment to form an equipment running log; the power utilization safety threshold of the electric equipment is set, and when the power utilization parameter index acquired by the electric equipment management terminal 1 exceeds the threshold, the equipment management server 32 can select two processing measures of power failure and alarm to control the electric equipment management terminal 1 to cut off the power supply of the equipment or alarm.
An Internet of things power supply management method based on power line carrier communication comprises the following steps:
step S1, establishing a power utilization management database, wherein the power utilization management database comprises a power utilization equipment information database and an operator information database;
and S2, monitoring the use condition of the operator and the operation condition of the equipment, monitoring the online state of the electric equipment, realizing information acquisition and real-time recording of the use condition of the electric equipment and the operation condition of the operator, and realizing the electric safety through a protection and alarm mechanism.
Further, the step S1 includes the following sub-steps:
step S101, establishing a factory or laboratory electrical equipment information database; establishing an information database of the electric equipment in an equipment management server, writing ID information corresponding to the electric equipment information in the database into an electronic tag of a metal nameplate of the electric equipment matched with the electric equipment, and updating the equipment information database when newly purchased equipment or equipment information changes;
step S102, establishing an operator information database; and establishing an information database of each operator in the equipment management server, writing the ID information of the operator corresponding to the information in the database into an operator identity card, and updating the operator information database when the information of the operator changes.
Further, the step S2 includes the following sub-steps:
step S201, the electric equipment is on-line, when the electric equipment gets electricity from the corresponding electric equipment management terminal, the electric equipment ID information in the electronic tag of the electric equipment is identified by the electric equipment management terminal and is sent to an equipment management server in a power carrier communication mode, the electric equipment ID information is compared with the information in the electric equipment information database for confirmation, the on-line time of the applied electric equipment is recorded, and an equipment on-line log is formed;
step S202, recording the service condition of an operator, wherein the operator swipes an identity card on an electric equipment management terminal for identification, sends ID information of the operator to an equipment management server in a power carrier communication mode, binds the operator and corresponding equipment information after the ID information of the operator is compared and confirmed with information in an operator information database, sends control information to the corresponding electric equipment management terminal to supply power to electric equipment, records the information of the operator and the on-duty time, when the operator is changed, the corresponding operator identity card needs to be swiped again, and the equipment management server automatically changes the on-duty time information of the equipment operator and forms an equipment operation use log;
step S203, the equipment management server monitors the running state of the electric equipment in real time; the method comprises the following steps that an electric equipment management terminal collects electric equipment running state information and sends the electric equipment running state information to an equipment management server in a power carrier communication mode, and the equipment management server can inquire the running state information of any one piece of online equipment, automatically record and store the real-time running state information of the electric equipment, and form an equipment running log; the device operation log is called and displayed on a display end of the device management server; the equipment management server sets the power utilization safety threshold of the electric equipment, and after the power utilization parameter index collected by the electric equipment management terminal exceeds the threshold, the equipment management server selects two processing measures of power failure and alarm, and controls the electric equipment management terminal to cut off the power supply of the electric equipment or give an alarm.
The invention has the following beneficial effects:
1) the monitoring and real-time recording of the use condition and the running state of the equipment are realized;
2) the situation that the wireless transmission scheme is limited to be used in a specific occasion is avoided based on a power carrier communication mode;
3) the power line is adopted as a signal transmission medium, so that rewiring caused by using a special communication cable is avoided;
4) the hierarchical management of equipment of a plurality of laboratories and plants is realized, and the power line utilization rate under a power carrier communication mode is effectively increased;
5) setting a power utilization safety threshold value of each device; when the equipment runs in an overload state, the equipment is powered off and alarm operation is realized;
6) the dynamic combination of equipment and personnel is realized, and the system has high flexibility.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a block diagram of system components and connections.
Fig. 2 is a schematic structural diagram of a single-phase electric device management terminal.
Fig. 3 is a block diagram of a control circuit of a management terminal of a single-phase electric device.
Fig. 4 is a schematic structural diagram of a three-phase electric device management terminal.
Fig. 5 is a block diagram of a control circuit of a management terminal of a three-phase electric device.
Fig. 6 is a schematic structural view of a metal nameplate of an electric device.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention.
The invention discloses a power carrier communication-based power supply management system of the Internet of things.
As shown in fig. 1, the power management system of the internet of things includes: the power utilization equipment management terminal 1, the communication bridge unit 2 and the power utilization management unit 3;
a plurality of laboratories or plants are built in general scientific research institutions and factories, an independent electric equipment management terminal 1 is arranged on each station of each laboratory or plant corresponding to each electric equipment, a communication bridge circuit unit 2 is assembled in a power distribution cabinet of each laboratory or plant, and an electric management unit 3 is arranged in an electric power central control room of each scientific research institution and plant;
the number of the power utilization management units is 1, the number of the communication bridge circuit units 2 is equal to that of laboratories or plants, and the power utilization equipment management terminal 1 is arranged according to actual needs.
The electric equipment management terminal 1 is connected with electric equipment, is divided into a single-phase electric equipment management terminal 11 and a three-phase electric equipment management terminal 12, and is respectively connected with the single-phase electric equipment and the three-phase electric equipment.
The single-phase electric equipment management terminal 11 is arranged on a station in a laboratory or a factory building, is connected with any one phase of live wire, zero wire N and grounding wire PE of three-phase power lines L1, L2 and L3, and provides electric energy for single-phase electric equipment;
as shown in fig. 2, the single-phase electric equipment management terminal 11 includes a housing 112, a power socket 113, an indicator lamp 114, a power socket 115, a permanent magnet 116, an equipment rfid tag 117, a personnel rfid tag 118, and a control circuit fixed inside the housing 112;
as shown in fig. 3, the control circuit includes a main control unit 1191, an information acquisition unit a, an on-off control unit 1194, and a power carrier communication unit 1195; the main control unit 1191 communicates with the power consumption management unit 3 through the power carrier communication unit 1195, sends the received information to the power consumption management unit 3, and receives control information sent by the power consumption management unit 3; the on-off control unit 1194 controls the on-off of the single-phase power supply of the electric equipment according to the control information received by the main control unit 1191; the information acquisition unit A comprises a power utilization information acquisition unit 1193 and a basic information acquisition unit 1192, the basic information acquisition unit 1192 consists of an equipment radio frequency identification mark 117, a personnel radio frequency identification mark 118, a two-way radio frequency identification module A and a communication serial port A, the equipment radio frequency identification mark 117 and the personnel radio frequency identification mark 118 are connected to the two-way radio frequency identification module A and used for identifying and receiving ID information of power utilization equipment and ID information of an operator, and the communication serial port A outputs the identified ID information to the main control unit 1191; the power utilization information acquisition unit 1193 is configured to acquire operation state information of the single-phase power utilization device, which includes power, voltage, current, power factor, electric quantity information, and the like;
the power supply socket 115 is connected to any one phase of live wire, neutral wire N and ground wire PE of three-phase power lines L1, L2 and L3 to supply power to the control circuit; the live wire of the power supply socket 115 is connected with the live wire of the power socket 113 sequentially through the on-off control unit 1194 and the information acquisition unit A, and the zero line and the grounding line of the power supply socket 115 are directly connected with the zero line and the grounding line of the power socket 113.
The three-phase electric equipment management terminal 12 is arranged on a station of a laboratory or a factory building, is connected with three-phase power lines L1, L2, L3, a zero line N and a grounding line PE, and provides electric energy for three-phase electric equipment;
as shown in fig. 4, the three-phase electric equipment management terminal 12 includes a three-phase power socket 121, a housing 122, an indicator light 124, a permanent magnet 126, an equipment rfid 127, a personnel rfid 128, and a control circuit fixed inside the housing 122;
as shown in fig. 5, the control circuit includes a main control unit 1291, an information acquisition unit B, a three-phase on-off control unit 1294 and a power carrier communication unit 1295; the main control unit communicates with the power utilization management unit 3 through the power carrier communication unit 1295, sends the received information to the power utilization management unit 3, and receives the control information sent by the power utilization management unit 3; the three-phase on-off control unit 1294 controls the on-off of the three-phase power supply of the electric equipment according to the control information received by the main control unit 1291; the information acquisition unit B comprises a three-phase power consumption information acquisition unit 1293 and a basic information acquisition unit 1292, wherein the basic information acquisition unit 1292 consists of a device radio frequency identification mark 127, a personnel radio frequency identification mark 128, a two-way radio frequency identification module B and a communication serial port B, the device radio frequency identification mark 117 and the personnel radio frequency identification mark 118 are connected to the two-way radio frequency identification module B and used for identifying and receiving power consumption device ID information and operator ID information, and the communication serial port B outputs the identified ID information to the main control unit 1191; the three-phase power utilization information acquisition unit 1193 is configured to acquire operation state information of the three-phase power utilization equipment, including power, voltage, current, power factor, electric quantity information, three-phase power phase sequence detection results, three-phase current, three-phase voltage balance detection results, and the like;
any phase live wire of the three-phase power lines L1, L2 and L3 and the zero line N form single-phase power to supply power to the control circuit 129; the three-phase power lines L1, L2 and L3 are connected to the live wire of the power socket 121 sequentially through the on-off control unit 1294 and the three-phase electricity consumption information acquisition unit 1293, and the ground wire PE is directly connected to the ground wire of the power socket 1.
A metal nameplate 10 of the electric equipment is tied on the power cord of the electric equipment, as shown in figure 6, the metal nameplate 10 of the electric equipment consists of a metal plate 101, an electronic tag 102 of the electric equipment and a rope 103, one side of the metal plate is provided with a hole, one end of the rope 103 is tied on the metal plate 101 through the hole, the other end is tied on a power supply wire of the electric equipment, an electronic tag 102 is adhered to the back of the metal plate 101, the electronic tag 102 is a metal-resistant electronic tag and records the ID information of the electric equipment, when the electric equipment uses electricity, the power supply line of the electric equipment is inserted into the electric equipment management terminal, the metal nameplate 10 of the electric equipment bound on the power supply line of the electric equipment can be adsorbed on the permanent magnet of the electric equipment management terminal, the electronic tag 102 may be attached to a device rfid tag of the electric device management terminal.
The communication bridge unit 2 is connected with the electric equipment management terminal 1 and the electric management unit 3 through a power line; the communication bridge unit 2 includes a power carrier blocking module 21, an equipment management convergence unit 22, and a first data transparent transmission unit 23.
The power carrier blocking module 21 consists of four paths of reactors and is arranged at the outlet ends of three-phase live wires and zero wires of a main circuit breaker in the laboratory or plant power distribution cabinet, and power lines are redistributed to each electric equipment management terminal 1 after passing through the power carrier blocking module 21; the power carrier interception module 21 intercepts the escape of power carrier signals in laboratories or plants, and simultaneously prevents the interference of the power carrier signals among different laboratories or plants; the power carrier interception module 21 divides the power supply management system of the internet of things into networks of different levels, that is, under the interception effect of the power carrier interception module 21, the electric equipment management terminals in a single laboratory or a factory building form a sub-network of the power supply management system of the internet of things, so that the interference of signals between different levels or between different laboratories or factory buildings is avoided, and the data transmission capability of the system is improved.
The device management convergence unit 22 comprises a main control module A, a power line carrier communication module A and a serial communication module A; the device management convergence unit 22 is connected to three-phase live wires L1, L2, L3, a zero wire N and a ground wire PE of the power line at the outlet end of the power carrier blocking module 21; the power carrier communication module A is connected with three-phase live wires L1, L2, L3, a zero wire N and a grounding wire PE of a power line, the serial communication module A is connected with a serial communication module B of the first data transparent transmission unit 23, and the main control module A is connected with the power carrier communication module A and the serial communication module A;
when the electric equipment information is collected, the main control module a queries the information collected by each electric equipment management terminal in the laboratory or the factory building through the power carrier communication module a in a polling manner, and sends all the information to the first data transparent transmission unit 23 through the communication module a in a serial communication manner;
when control information is sent to the electric equipment management terminal, the serial communication module A receives a control signal output by the first data transparent transmission unit 23 serial communication module B, the main control module A analyzes the control signal, and sends the control signal to the corresponding electric equipment management terminal through the power carrier communication module A to control the corresponding electric equipment.
The first data transparent transmission unit 23 comprises a main control module B, a power line carrier communication module B and a serial communication module B, the data transparent transmission unit and the equipment management convergence unit have the same structure, and the functional difference is determined by firmware programmed on the main control module; the serial communication module B of the first data transparent transmission unit 23 is connected with the serial communication module a of the equipment management convergence unit 22, and the power carrier communication module B of the first data transparent transmission unit 23 is connected to three-phase live wires L1, L2, L3, a zero line N and a ground wire PE of a power line at an inlet end of a main circuit breaker of a laboratory or factory building power distribution cabinet; the first data transparent transmission unit 23 realizes bidirectional transmission of power carrier signals and serial communication signals, and provides a bridge circuit for serial communication between the equipment management convergence unit 22 and the power utilization management unit 3;
when the electric equipment information is collected, the first data transparent transmission unit 23 receives the packaged information sent by the equipment management convergence unit 22 through the serial communication module B, converts the serial packaged information into a carrier signal at the main control module B, and sends the carrier signal to the electric management unit 3 of the central control room through the power carrier communication module B;
when control information is sent to the electric equipment management terminal, the first data transparent transmission unit 23 receives the control information sent by the electric power management unit 3 through the power carrier communication module B, converts a carrier signal into serial data at the main control module B, and sends the control information to the equipment management convergence unit 22 through the serial communication module B.
The electricity utilization management unit 3 comprises a second data transparent transmission unit 31 and an equipment management server 32;
the second data transparent transmission unit 31 has the same structure as the first data transparent transmission unit 23, and realizes bidirectional conversion between a carrier signal and a serial communication signal, a power carrier communication module C of the second data transparent transmission unit 31 is connected to a power line of a distribution network in a central control room, and can communicate with power carrier communication modules B of the first data transparent transmission unit 23 of all communication bridge units 2, and the serial communication module C of the second data transparent transmission unit 31 is in serial communication with the device management server 32;
when the electric equipment information is collected, the second data transmission unit 31 receives the carrier signal sent by the first data transmission unit 23, the conversion from the carrier signal to the serial data is completed in the second data transmission unit 31, and the packaging information is transmitted to the equipment management server 32;
when control information is sent to an electric equipment management terminal, the serial communication module C of the second data transparent transmission unit 31 receives the control information sent by the equipment management server 32, and the control information is converted into a carrier signal through the second data transparent transmission unit 31 and is transmitted to the power carrier communication module B of the first data transparent transmission unit 23 through a power line;
an Internet of things power supply management method based on power line carrier communication comprises the following steps:
step S1, establishing a power utilization management database
And S101, establishing a factory or laboratory electrical equipment information database. An information database of each piece of electric equipment is established in equipment management software, wherein the information database comprises the purchase time, the manufacturer, rated electricity parameters, the sound state, maintenance records, the contact way of maintainers, radio frequency identification information of the equipment and the like of the equipment, and when newly purchased equipment or equipment information changes, the equipment information database needs to be updated.
And S102, establishing an operator information database. An information database of each operator is established in the equipment management software, wherein the information database comprises the name, the contact information, the employee identity radio frequency identification information and the like of the operator, and when the information of the operator changes, the information database of the operator needs to be updated.
And S2, monitoring the use condition of the operator and the operation condition of the equipment, monitoring the online state of the electric equipment, realizing information acquisition and real-time recording of the use condition of the electric equipment and the operation condition of the operator, and realizing the electric safety through a protection and alarm mechanism.
S201, the electric equipment is connected with a line. When the electric equipment gets electricity from the corresponding electric equipment management terminal, the electric equipment ID information in the electronic tag of the electric equipment is identified by the electric equipment management terminal and is sent to the equipment management server in a power carrier communication mode, the electric equipment ID information is compared with the information in the electric equipment information database for confirmation, the online time of the applied electric equipment is recorded, and an online log of the equipment is formed.
And S202, recording the use condition of the operator. The method comprises the steps that an operator conducts card swiping identification on an electric equipment management terminal, ID information of the operator is sent to an equipment management server in a power carrier communication mode, and is compared with information in an operator information database to confirm, then the operator and corresponding equipment information are bound, control information is sent to the corresponding electric equipment management terminal to supply power to electric equipment, the operator and post-on time information are recorded, when the operator is changed, the corresponding operator identity card needs to be swiped again, the equipment management server automatically changes the equipment operator in the post-on time information, and an equipment operation use log is formed.
S203, the equipment management server monitors the running state of the electric equipment in real time; the method comprises the following steps that an electric equipment management terminal collects electric equipment running state information and sends the electric equipment running state information to an equipment management server in a power carrier communication mode, and the equipment management server can inquire the running state information of any one piece of online equipment, automatically record and store the real-time running state information of the electric equipment, and form an equipment running log; the device operation log is called and displayed on a display end of the device management server; the equipment management server sets the power utilization safety threshold of the electric equipment, and after the power utilization parameter index collected by the electric equipment management terminal exceeds the threshold, the equipment management server selects two processing measures of power failure and alarm, and controls the electric equipment management terminal to cut off the power supply of the electric equipment or give an alarm.
In this embodiment, the serial communication module of the device management convergence unit can be replaced by an ethernet module, so that the device management convergence unit and the device management server in each laboratory can be networked through a switch, and thus, power carrier communication is adopted inside the laboratory, and ethernet communication is adopted between the laboratory and the device management server, so that ethernet hardware construction work can be reduced, and meanwhile, because the ethernet communication bandwidth is far higher than the power carrier communication mode, the mode is more suitable for constructing a large-scale device internet of things management system.
In summary, the embodiment of the present invention provides a power supply management system and method for internet of things based on power line carrier communication, and the following beneficial effects are provided:
1) the monitoring and real-time recording of the use condition and the running state of the equipment are realized;
2) the situation that the wireless transmission scheme is limited to be used in a specific occasion is avoided based on a power carrier communication mode;
3) the power line is adopted as a signal transmission medium, so that rewiring caused by using a special communication cable is avoided;
4) the hierarchical management of equipment of a plurality of laboratories and plants is realized, and the power line utilization rate under a power carrier communication mode is effectively increased;
5) setting a power utilization safety threshold value of each device; when the equipment runs in an overload state, the equipment is powered off and alarm operation is realized;
6) the dynamic combination of equipment and personnel is realized, and the system has high flexibility.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides a thing networking power supply management system based on power line carrier communication which characterized in that includes: the system comprises an electric equipment management terminal (1), a communication bridge unit (2) and an electric management unit (3);
the electric equipment management terminal (1) is connected with an electric equipment, and is used for collecting and controlling the electricity utilization condition of the electric equipment and the personnel operation condition;
a metal nameplate (10) of the electric equipment is bound on a power line of each electric equipment; the metal nameplate (10) comprises a metal nameplate (101) and an electronic tag (102) of electric equipment; an electronic tag (102) is adhered to the back of the metal plate (101), wherein the electronic tag (102) is an anti-metal electronic tag and records ID information of electric equipment; the metal nameplate (10) of the electric equipment can be adsorbed on a permanent magnet of the electric equipment management terminal (1), the electronic tag (102) is attached to an equipment radio frequency identification mark of the electric equipment management terminal (1), and the electric equipment management terminal (1) collects ID information of the electric equipment; an operator carries out card swiping identification on the electric equipment management terminal by using the identity card, and the electric equipment management terminal (1) collects ID information of the operator through an equipment radio frequency identification mark;
the communication bridge circuit unit (2) is connected with all the electric equipment management terminals (1) arranged in a laboratory or a factory building through a power line, forms a sub-network supplied by the Internet of things together with all the electric equipment management terminals (1), is connected with the electric management unit (3) through the power line, and provides a bridge circuit for data exchange of all the electric equipment management terminals (1) and the electric management unit (3);
the power utilization management unit (3) is used for monitoring power utilization of all power utilization equipment and use conditions of operators;
the electricity management unit (3) comprises an equipment management server (32);
the equipment management server (32) receives equipment ID information and operator ID information sent by the electric equipment management terminal (1) in the power supply of the whole Internet of things, sends power utilization control information to the corresponding electric equipment management terminal (1), and forms a corresponding electric equipment online log and an equipment operation use log; when the electric equipment is powered on, recording running state information of the electric equipment management terminal during the running of the collection equipment to form an equipment running log; the power utilization safety threshold of the electric equipment is set, and when the power utilization parameter index acquired by the electric equipment management terminal (1) exceeds the threshold, the equipment management server (32) can select two processing measures of power failure and alarm to control the electric equipment management terminal (1) to cut off the power supply of the equipment or alarm.
2. The power supply management system based on the internet of things of claim 1, wherein the electric equipment management terminal (1) comprises a single-phase electric equipment management terminal (11) and a three-phase electric equipment management terminal (12), the single-phase electric equipment management terminal (11) is connected with single-phase electric equipment, and the three-phase electric equipment management terminal (12) is connected with three-phase electric equipment.
3. The power supply management system based on the internet of things of claim 2 is characterized in that the control circuit of the single-phase electric equipment management terminal (11) comprises a main control unit (1191), a basic information acquisition unit (1192), an electric information acquisition unit (1193), an on-off control unit (1194) and a power carrier communication unit (1195);
the main control unit (1191) communicates with the power utilization management unit (3) through a power carrier communication unit (1195), sends the received information to the power utilization management unit (3), and receives control information sent by the power utilization management unit (3);
the basic information acquisition unit (1192) acquires ID information of electric equipment through an equipment radio frequency identification mark (117) and acquires ID information of an operator through a personnel radio frequency identification mark (118), so that the electric equipment and the operator are identified, and the identified ID information is output to the main control unit (1191);
the power utilization information acquisition unit (1193) is used for acquiring the running state information of the single-phase power utilization equipment including power, voltage, current, power factor and electric quantity information;
the on-off control unit (1194) controls the on-off of the single-phase power supply of the electric equipment according to the control information received by the main control unit (1191);
the power carrier communication unit (1195) sends the information acquired by the basic information acquisition unit (1192) and the power consumption information acquisition unit (1193) to the power consumption management unit (3), and receives a control signal sent from the power consumption management unit (3).
4. The power supply management system of the internet of things according to claim 2, wherein the control circuit of the three-phase electric equipment management terminal (12) comprises a main control unit (1291), a basic information acquisition unit (1292), a three-phase electric information acquisition unit (1293), a three-phase on-off control unit (1294) and a power carrier communication unit (1295);
the main control unit (1291) communicates with the power utilization management unit (3) through a power carrier communication unit (1295), sends the received information to the power utilization management unit (3), and receives control information sent by the power utilization management unit (3);
the basic information acquisition unit (1292) acquires ID information of electric equipment through an equipment radio frequency identification mark (127), acquires ID information of an operator through a personnel radio frequency identification mark (128), thereby identifying the electric equipment and the operator, and outputs the identified ID information to the main control unit (1291);
the three-phase power utilization information acquisition unit (1293) is used for acquiring running state information of the three-phase power utilization equipment, wherein the running state information comprises power, voltage, current, power factor, electric quantity information, a three-phase power phase sequence detection result, a three-phase current balance detection result and a three-phase voltage balance detection result;
the three-phase on-off control unit (1294) controls the on-off of the power supply of the three-phase electric equipment according to the control information received by the main control unit (1291);
the power carrier communication unit (1295) transmits information acquired by the basic information acquisition unit (1292) and the three-phase power consumption information acquisition unit (1293) to the power consumption management unit (3), and receives a control signal transmitted from the power consumption management unit (3).
5. The power supply management system of the internet of things as claimed in any one of claims 1 to 4, wherein the communication bridge unit (2) comprises a power carrier interception module (21), a device management aggregation unit (22) and a first data transparent transmission unit (23);
the power carrier blocking module (21) comprises four reactors which are respectively arranged at the outlet ends of three-phase live wires and zero wires of a main circuit breaker in the laboratory or the plant power distribution cabinet, and the power wires are redistributed to each electric equipment management terminal (1) after passing through the power carrier blocking module (21);
the equipment management convergence unit (22) comprises a main control module A, a power carrier communication module A and a serial communication module A; the equipment management convergence unit (22) is connected to a three-phase live wire, a zero wire and a grounding wire of a power line at the outlet end of the power carrier interception module (21); the power carrier intercepting module (21) is connected with a three-phase live wire, a zero wire and a grounding wire of a power line, the serial communication module A is connected with the serial communication module B of the first data transparent transmission unit (23), and the main control module A is connected with the power carrier communication module A and the serial communication module A;
the first data transparent transmission unit (23) comprises a main control module B, a power carrier communication module B and a serial communication module B; the power carrier communication module B is connected to a three-phase live wire, a zero line and a grounding wire of a power line of an inlet end of a main circuit breaker of a laboratory or factory building power distribution cabinet, and the main control module B is connected with the power carrier communication module B and the serial communication module B.
6. The power management system of the internet of things of claim 5, wherein the power management unit (3) comprises a second data transparent transmission unit (31) and a device management server (32);
the second data transparent transmission unit (31) comprises a main control module C, a power carrier communication module C and a serial communication module C; and a power carrier communication module C of the second data transparent transmission unit (31) is connected to a three-phase live wire, a zero wire and a grounding wire of a power line output by a power central control room power distribution cabinet, and a serial communication module C of the second data transparent transmission unit (31) is connected with a serial port of the equipment management server (32).
7. An Internet of things power supply management method based on power line carrier communication is characterized by comprising the following steps:
step S1, establishing a power utilization management database, wherein the power utilization management database comprises a power utilization equipment information database and an operator information database;
the step S1 includes the following sub-steps:
step S101, establishing a factory or laboratory electrical equipment information database; establishing an information database of the electric equipment in the equipment management server, writing ID information corresponding to the electric equipment information in the database into an electronic tag of a metal nameplate matched with the electric equipment, and updating the equipment information database when newly purchased equipment or equipment information changes;
step S102, establishing an operator information database; establishing an information database of each operator in an equipment management server, writing ID information of the operator corresponding to information in the database into an operator identity card, and updating the operator information database when the operator information changes;
s2, monitoring the use condition of operators and the operation condition of equipment, monitoring the online state of the electric equipment, realizing information acquisition and real-time recording of the use condition of the electric equipment and the operation condition of personnel, and realizing the electric safety through a protection and alarm mechanism;
the step S2 includes the following sub-steps:
step S201, the electric equipment is on-line, when the electric equipment gets electricity from the corresponding electric equipment management terminal, a metal nameplate bound on a power line of the electric equipment is adsorbed on a permanent magnet of the electric equipment management terminal, electric equipment ID information in an electronic tag of the metal nameplate is identified by the electric equipment management terminal and is sent to an equipment management server in a power carrier communication mode, the electric equipment ID information is compared with information in an electric equipment information database for confirmation, the on-line time of the applied electric equipment is recorded, and an equipment on-line log is formed;
step S202, recording the service condition of an operator, wherein the operator swipes an identity card on an electric equipment management terminal for identification, sends ID information of the operator to an equipment management server in a power carrier communication mode, binds the operator and corresponding equipment information after the ID information of the operator is compared and confirmed with information in an operator information database, sends control information to the corresponding electric equipment management terminal to supply power to electric equipment, records the information of the operator and the on-duty time, when the operator is changed, the corresponding operator identity card needs to be swiped again, and the equipment management server automatically changes the on-duty time information of the equipment operator and forms an equipment operation use log;
step S203, the equipment management server monitors the running state of the electric equipment in real time; the method comprises the following steps that an electric equipment management terminal collects electric equipment running state information and sends the electric equipment running state information to an equipment management server in a power carrier communication mode, and the equipment management server can inquire the running state information of any one piece of online equipment, automatically record and store the real-time running state information of the electric equipment, and form an equipment running log; the device operation log is called and displayed on a display end of the device management server; the equipment management server sets the power utilization safety threshold of the electric equipment, and after the power utilization parameter index collected by the electric equipment management terminal exceeds the threshold, the equipment management server selects two processing measures of power failure and alarm, and controls the electric equipment management terminal to cut off the power supply of the electric equipment or give an alarm.
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| CN108769901B (en) * | 2018-05-18 | 2020-03-17 | 华南农业大学 | Laboratory equipment management system and method based on UWB technology |
| CN108718110A (en) * | 2018-06-21 | 2018-10-30 | 贵州电网有限责任公司 | Information acquisition system and charging network transmission method suitable for power system device |
| CN110135768B (en) * | 2019-06-19 | 2021-09-21 | 华翔翔能科技股份有限公司 | Enterprise power utilization management method and power utilization management system for regional power-on management |
| CN111313547B (en) * | 2020-02-08 | 2021-04-13 | 河北晶冰蕊电子元件有限公司 | Intelligent power supply and utilization management system and management method thereof |
| CN111525699A (en) * | 2020-05-22 | 2020-08-11 | 江苏航天大为科技股份有限公司 | Intersection case power supply management system |
| CN113741321A (en) * | 2021-07-23 | 2021-12-03 | 成都天奥测控技术有限公司 | Method for monitoring use condition of electric equipment in secret-related place |
| CN114336971B (en) * | 2021-12-31 | 2022-12-09 | 浙江华楷电气有限公司 | Power information processing system and method and power distribution equipment |
| CN116938288B (en) * | 2023-09-15 | 2023-12-08 | 济南良博信息技术有限公司 | Traffic equipment supervision method, equipment and medium based on power line carrier communication |
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