CN105790434A - Power measurement equipment employing power carrier technology - Google Patents
Power measurement equipment employing power carrier technology Download PDFInfo
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- CN105790434A CN105790434A CN201610125183.9A CN201610125183A CN105790434A CN 105790434 A CN105790434 A CN 105790434A CN 201610125183 A CN201610125183 A CN 201610125183A CN 105790434 A CN105790434 A CN 105790434A
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- measuring device
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention relates to power measurement equipment employing a power carrier technology. The power measurement equipment comprises a shell, wherein the front surface of the shell is provided with control keys, a communication interface, a display interface and state indicator lights; and a power interface and a signal interface are arranged at the upper part of the shell. The power measurement equipment employing the power carrier technology carries out real-time communication with an external front desk through the communication interface, and carries out carrier data transmission with adjacent equipment through the power interface, so that the signal transmission reliability of the equipment is ensured and the wiring cost is reduced. The filtering reliability is ensured through a passive band-pass filter comprising a second inductor, a second capacitor and a third capacitor in a carrier receiving circuit; and the power carrier stability and reliability of the equipment are improved. Meanwhile, the power measurement equipment has a short-circuit protection function through a first capacitor; a first resistor is an unloading resistor and is used for providing a channel for the first capacitor when the equipment is offline; and a high voltage at an input end of the equipment is prevented, so that the reliability of the equipment is further improved.
Description
Technical field
The present invention relates to a kind of electric power measuring device adopting PLC technology.
Background technology
In present power system, after the parameter measurement of electrical network, it is necessary to transfer data to general reception desk by communication modes and be monitored.
In the prior art, the communication reliability of wire communication is high, but owing to wiring cost is high, substantially increases the using value of equipment；Power carrier communication technology is to carry out signal transmission by electric lines of force, although greatly reduces wiring cost, but due to signal poor anti jamming capability, reduces the reliability of the communication of equipment.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the deficiency of prior art wire communication technology wiring cost height and power carrier communication technology signal poor anti jamming capability, it is provided that a kind of wire communication and that power carrier communication technology combines and that communication reliability stability the is high electric power measuring device adopting PLC technology.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electric power measuring device adopting PLC technology, including housing, the front of described housing is provided with control button, memory interface, communication interface, display interface and status indicator lamp, described housing be arranged over power interface and signaling interface, described housing is provided with central control unit, described central control unit is PLC, and described control button, memory interface, communication interface, display interface, power interface, signaling interface and status indicator lamp all electrically connect with central control unit；
nullDescribed central control unit includes carrier communication module，Described power interface electrically connects with carrier communication module，Described carrier communication module includes carrier wave radiating circuit and carrier wave receives circuit，Described carrier wave receives circuit and includes bilateral diode、First electric capacity、Second electric capacity、3rd electric capacity、4th electric capacity、First inductance、Second inductance、Transformator、First resistance、Second resistance、3rd resistance、First diode、Second diode、3rd diode、4th diode and the 5th diode，Bilateral diode is passed through in one end of the input circuit of described transformator、The series circuit of the first electric capacity and the first inductance composition is connected with the other end of the input circuit of transformator，Described first resistance and the first Capacitance parallel connection，The connection circuit of playing a reversed role of the output loop of described transformator and the first diode and the second diode connects，The minus earth of described 3rd diode，The anode of described 3rd diode is connected with the anode of the anode of the first diode and the second diode respectively，The series circuit of the output loop of described transformator and the second resistance and the second inductance composition is in parallel，Described second electric capacity and the second inductance in parallel，Described 3rd electric capacity and the second Capacitance parallel connection，The series circuit of described 3rd resistance and the 4th diode composition and the 3rd Capacitance parallel connection，Described 5th diode and the 4th diode inverse parallel，Described 4th electric capacity is connected with the negative electrode of the 5th diode and the anode of the 4th diode respectively，The anode of described 5th diode and the minus earth of the 4th diode.
As preferably, described memory interface is USB interface.
As preferably, described communication interface is Ethernet interface.
As preferably, in order to improve the practicality of this equipment instruction, described status indicator lamp is two-color diode.
As preferably, in order to improve the safety of this equipment, the flame retardant rating of described housing, power interface and signaling interface is V0.
As preferably, being provided with wireless communication module in described central control unit, described wireless communication module passes through Bluetooth transmission wireless signal.
As preferably, utilizing transient supression diode to have the advantages that to prevent from shoving, improve the reliability of this equipment, described bilateral diode is transient supression diode.
As preferably, described 3rd electric capacity is tunable capacitor.
As preferably, described 4th diode and the 5th diode are Zener diode.
The invention has the beneficial effects as follows, the electric power measuring device of this employing PLC technology carries out real-time communication by communication interface with outside general reception desk, carrier wave data transmission is carried out with adjacent equipment, it is ensured that the reliability of the signal of equipment transmission and reduce wiring cost by power interface；Received the passive bandpass filters of the second inductance in circuit, the second electric capacity, the 3rd electric capacity composition by carrier wave, it is ensured that the reliability of filtering, improve the stable of electric power of equipment carrier wave and reliability；By the first electric capacity, there is short-circuit protection function simultaneously, and the first resistance is electric power generation unloading resistance, for providing passage to when equipment off-line the first electric capacity electric discharge, it is prevented that at equipment input, high pressure occurs, further increase the reliability of equipment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the electric power measuring device adopting PLC technology of the present invention；
Fig. 2 is the circuit theory diagrams of the carrier wave reception circuit of the electric power measuring device adopting PLC technology of the present invention；
In figure: 1. housing, 2. control button, 3. memory interface, 4. communication interface, 5. display interface, 6. power interface, 7. signaling interface, 8. status indicator lamp, TVS. bilateral diode, C1. the first electric capacity, C2. the second electric capacity, C3. the 3rd electric capacity, C4. the 4th electric capacity, L1. the first inductance, L2. the second inductance, T1. transformator, R1. the first resistance, R2. the second resistance, R3. the 3rd resistance, D1. the first diode, D2. the second diode, D3. the 3rd diode, D4. the 4th diode, D5. the 5th diode.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
As depicted in figs. 1 and 2, a kind of electric power measuring device adopting PLC technology, including housing 1, the front of described housing 1 is provided with control button 2, memory interface 3, communication interface 4, display interface 5 and status indicator lamp 8, described housing 1 be arranged over power interface 6 and signaling interface 7, described housing 1 is provided with central control unit, described central control unit is PLC, and described control button 2, memory interface 3, communication interface 4, display interface 5, power interface 6, signaling interface 7 and status indicator lamp 8 all electrically connect with central control unit；
nullDescribed central control unit includes carrier communication module，Described power interface 6 electrically connects with carrier communication module，Described carrier communication module includes carrier wave radiating circuit and carrier wave receives circuit，Described carrier wave receives circuit and includes bilateral diode TVS、First electric capacity C1、Second electric capacity C2、3rd electric capacity C3、4th electric capacity C4、First inductance L1、Second inductance L2、Transformator T1、First resistance R1、Second resistance R2、3rd resistance R3、First diode D1、Second diode D2、3rd diode D3、4th diode D4 and the five diode D5，Bilateral diode TVS is passed through in one end of the input circuit of described transformator T1、The series circuit of the first electric capacity C1 and the first inductance L1 composition is connected with the other end of the input circuit of transformator T1，Described first resistance R1 and the first electric capacity C1 is in parallel，The connection circuit of playing a reversed role of the output loop of described transformator T1 and the first diode D1 and the second diode D2 connects，The minus earth of described 3rd diode D3，The anode of described 3rd diode D3 is connected with the anode of the anode of the first diode D1 and the second diode D2 respectively，The series circuit of the output loop of described transformator T1 and the second resistance R2 and the second inductance L2 composition is in parallel，Described second electric capacity C2 and the second inductance L2 is in parallel，Described 3rd electric capacity C3 and the second electric capacity C2 is in parallel，Series circuit and the 3rd electric capacity C3 of described 3rd resistance R3 and the four diode D4 composition are in parallel，Described 5th diode D5 and the four diode D4 inverse parallel，Described 4th electric capacity C4 is connected with the negative electrode of the 5th diode D5 and the anode of the 4th diode D4 respectively，The anode of described 5th diode D5 and the minus earth of the 4th diode D4.
As preferably, described memory interface 3 is USB interface.
As preferably, described communication interface 4 is Ethernet interface.
As preferably, in order to improve the practicality of this equipment instruction, described status indicator lamp 8 is two-color diode.
As preferably, in order to improve the safety of this equipment, the flame retardant rating of described housing 1, power interface 6 and signaling interface 7 is V0.
As preferably, being provided with wireless communication module in described central control unit, described wireless communication module passes through Bluetooth transmission wireless signal.
As preferably, utilizing transient supression diode to have the advantages that to prevent from shoving, improve the reliability of this equipment, described bilateral diode TVS is transient supression diode.
As preferably, described 3rd electric capacity C3 is tunable capacitor.
As preferably, described 4th diode D4 and the five diode D5 is Zener diode.
The carrier wave of the electric power measuring device of this employing PLC technology receives in circuit, owing to needing that the carrier signal of input is filtered, and passive filter will with source filter, because active filter can produce a white noise suitable with carrier received signal, this circuit have employed the passive bandpass filters being made up of the second inductance L2, the second electric capacity C2, the 3rd electric capacity C3, ensure that the reliability of filtering, improve the stable of electric power of equipment carrier wave and reliability；The carrier wave coupling unit of circuit is made up of transformator T1, the first electric capacity C1, the first inductance L1 simultaneously; transformator T1 and industrial frequency AC forceful electric power are isolated by the first electric capacity C1; make communicating circuit can be kept completely separate power network power frequency component; thus can enter and make high-frequency signal enter by resistance low frequency signal; wherein the first electric capacity C1 has short-circuit protection function; and the first resistance R1 is electric power generation unloading resistance; for providing passage to when equipment off-line the first electric capacity C1 electric discharge; prevent, at equipment input, high pressure occurs, further increase the reliability of equipment；Moreover, the 4th diode D4 and the five diode D5 is Zener diode, constitutes a bi-directional voltage stabilizing pipe by the 4th diode D4 and the five diode D5, has Absorption for differential mode spiking, improve the reliability of circuit.
In the electric power measuring device of this employing PLC technology, control button 2 for equipment is manipulated, improve the practicality of equipment；Memory interface 3 is for carrying out field download to the power measurement data of equipment；Communication interface 4 is for carrying out real-time communication with outside general reception desk, it is simple to electrical network parameter is carried out monitor in real time by staff；Display interface 5 is used for showing relevant information；Power interface 6 is for providing supply voltage to equipment；Signaling interface 7 is for detecting electrical network parameter；Status indicator lamp 8 is for the duty of display device.
Compared with prior art, the electric power measuring device of this employing PLC technology carries out real-time communication by communication interface 4 with outside general reception desk, carrier wave data transmission is carried out with adjacent equipment, it is ensured that the reliability of the signal of equipment transmission and reduce wiring cost by power interface 6；Received the passive bandpass filters of the second inductance L2 in circuit, the second electric capacity C2, the 3rd electric capacity C3 composition by carrier wave, it is ensured that the reliability of filtering, improve the stable of electric power of equipment carrier wave and reliability；By the first electric capacity C1, there is short-circuit protection function simultaneously, and the first resistance R1 is electric power generation unloading resistance, for providing passage to when equipment off-line the first electric capacity C1 electric discharge, it is prevented that at equipment input, high pressure occurs, further increase the reliability of equipment.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (9)
1. the electric power measuring device adopting PLC technology, it is characterized in that, including housing (1), the front of described housing (1) is provided with control button (2), memory interface (3), communication interface (4), display interface (5) and status indicator lamp (8), described housing (1) be arranged over power interface (6) and signaling interface (7), described housing is provided with central control unit in (1), described central control unit is PLC, described control button (2), memory interface (3), communication interface (4), display interface (5), power interface (6), signaling interface (7) and status indicator lamp (8) all electrically connect with central control unit；
nullDescribed central control unit includes carrier communication module，Described power interface (6) electrically connects with carrier communication module，Described carrier communication module includes carrier wave radiating circuit and carrier wave receives circuit，Described carrier wave receives circuit and includes bilateral diode (TVS)、First electric capacity (C1)、Second electric capacity (C2)、3rd electric capacity (C3)、4th electric capacity (C4)、First inductance (L1)、Second inductance (L2)、Transformator (T1)、First resistance (R1)、Second resistance (R2)、3rd resistance (R3)、First diode (D1)、Second diode (D2)、3rd diode (D3)、4th diode (D4) and the 5th diode (D5)，Bilateral diode (TVS) is passed through in one end of the input circuit of described transformator (T1)、The series circuit that first electric capacity (C1) and the first inductance (L1) form is connected with the other end of the input circuit of transformator (T1)，Described first resistance (R1) is in parallel with the first electric capacity (C1)，The connection circuit of playing a reversed role of the output loop of described transformator (T1) and the first diode (D1) and the second diode (D2) connects，The minus earth of described 3rd diode (D3)，The anode of described 3rd diode (D3) is connected with the anode of the anode of the first diode (D1) and the second diode (D2) respectively，The series circuit that the output loop of described transformator (T1) and the second resistance (R2) and the second inductance (L2) form is in parallel，Described second electric capacity (C2) is in parallel with the second inductance (L2)，Described 3rd electric capacity (C3) is in parallel with the second electric capacity (C2)，Series circuit and the 3rd electric capacity (C3) that described 3rd resistance (R3) and the 4th diode (D4) form are in parallel，Described 5th diode (D5) and the 4th diode (D4) inverse parallel，Described 4th electric capacity (C4) is connected with the negative electrode of the 5th diode (D5) and the anode of the 4th diode (D4) respectively，The anode of described 5th diode (D5) and the minus earth of the 4th diode (D4).
2. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described memory interface (3) is USB interface.
3. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described communication interface (4) is Ethernet interface.
4. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described status indicator lamp (8) is two-color diode.
5. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that the flame retardant rating of described housing (1), power interface (6) and signaling interface (7) is V0.
6. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that being provided with wireless communication module in described central control unit, described wireless communication module passes through Bluetooth transmission wireless signal.
7. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described bilateral diode (TVS) is transient supression diode.
8. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described 3rd electric capacity (C3) is tunable capacitor.
9. the electric power measuring device adopting PLC technology as claimed in claim 1, it is characterised in that described 4th diode (D4) and the 5th diode (D5) are Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125183.9A CN105790434A (en) | 2016-03-05 | 2016-03-05 | Power measurement equipment employing power carrier technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125183.9A CN105790434A (en) | 2016-03-05 | 2016-03-05 | Power measurement equipment employing power carrier technology |
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| Publication Number | Publication Date |
|---|---|
| CN105790434A true CN105790434A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610125183.9A Pending CN105790434A (en) | 2016-03-05 | 2016-03-05 | Power measurement equipment employing power carrier technology |
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| CN (1) | CN105790434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802423A (en) * | 2017-10-12 | 2018-03-16 | 江阴市新盛医疗器材设备有限公司 | A kind of intelligent medical wheelchair turned to |
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| CN204946321U (en) * | 2015-09-18 | 2016-01-06 | 成都兴联宜科技有限公司 | A kind of data concentrator |
| CN105225462A (en) * | 2015-08-31 | 2016-01-06 | 贵州电网有限责任公司贵阳供电局 | A kind of power carrier charging base |
| CN105243817A (en) * | 2015-11-02 | 2016-01-13 | 国家电网公司 | Energy supervision data collector |
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2016
- 2016-03-05 CN CN201610125183.9A patent/CN105790434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001313595A (en) * | 2000-04-27 | 2001-11-09 | Mitsubishi Electric Corp | Power line carrier communication method and power line carrier communication system |
| CN201590148U (en) * | 2009-12-23 | 2010-09-22 | 沈阳时尚实业有限公司 | Intelligent concentrator with low voltage power line carrier communication and LCD display |
| CN203824582U (en) * | 2014-04-23 | 2014-09-10 | 合肥优尔电子科技有限公司 | Excavation construction environment monitoring device based on power line carrier communication function |
| CN204481810U (en) * | 2015-02-27 | 2015-07-15 | 湖南师范大学 | A kind of control system based on power line carrier communication |
| CN105225462A (en) * | 2015-08-31 | 2016-01-06 | 贵州电网有限责任公司贵阳供电局 | A kind of power carrier charging base |
| CN204946321U (en) * | 2015-09-18 | 2016-01-06 | 成都兴联宜科技有限公司 | A kind of data concentrator |
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| CN107802423A (en) * | 2017-10-12 | 2018-03-16 | 江阴市新盛医疗器材设备有限公司 | A kind of intelligent medical wheelchair turned to |
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Application publication date: 20160720 |
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