CN102353859A - Multi-path multifunctional power communication detection equipment and detection method for same - Google Patents
Multi-path multifunctional power communication detection equipment and detection method for same Download PDFInfo
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- CN102353859A CN102353859A CN2011101959568A CN201110195956A CN102353859A CN 102353859 A CN102353859 A CN 102353859A CN 2011101959568 A CN2011101959568 A CN 2011101959568A CN 201110195956 A CN201110195956 A CN 201110195956A CN 102353859 A CN102353859 A CN 102353859A
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Abstract
The invention discloses multi-path multifunctional power communication detection equipment, which comprises a central processing unit (CPU), a detection module and a background monitoring system, wherein the detection module and the background monitoring system are respectively connected with the CPU; and the detection circuit comprises a main circuit detection module, a branch circuit detection module and a switching value detection module. The multi-path multifunctional power communication detection equipment has the advantages of simple structure, low cost, high measuring precision and accurate indicating value; the multi-path multifunctional power communication detection equipment comprises a current transformer, a conditioning circuit, a calculation chip, the CPU and the like, so that a multi-path main feeding circuit and a branch circuit are simultaneously monitored and are transmitted to the CPU for processing through the current transformer, the conditioning circuit, a voltage conditioning circuit and the calculating chip; and the multi-path switching value is output for monitoring and controlling in a real time.
Description
Technical field
The present invention relates to checkout equipment, particularly be used for multiple power checkout equipment and detection method thereof that electrical network parameter detects.
Background technology
Measurement instrument is the requisite survey instrument of electric system; Also be to ensure that electric power and power equipment safety thereof move one of indispensable means; It can reflect the present situation of loop parameters of electric power in the electric power safety operational process; Prevent the fault that excess current or short circuit cause, and can protect the safety that ensures operation power with other.
Along with the utilization at measurement instrument of the continuous development of electric utility and integrated circuit, measurement instrument requires also more and more to become the instrument that electric power detects.The problems of measurement of multifunction power communication integrative instrument solution now is more single; There is only completion to measure multiloop; Have and only accomplish the detector switch state, but only only limit to detect branchs loop, and no-trump detection major loop, branch loop and on off state are controlled in the difficult problem of one.
Summary of the invention
The invention reside in and overcome above-mentioned weak point; A kind of total and fractional multifunction power comprehensive communication instrument is provided; Be used for terminal electricity consumption occasion, realize continuous energy consumption monitoring and metering, statistics and Energy Saving Control, solve the technical matters of no comprehensive detection instrument in the prior art a plurality of electricity consumptions loop.
This multichannel multifunction power communication detection equipment of the present invention comprise central processor CPU, with detection module and background monitoring system that this central processor CPU is connected respectively, said detection module comprises major loop detection module and expansion module.
Said major loop detection module comprises current/voltage detecting unit and switching value detection module; The current/voltage detecting unit comprises the three-phase electrical energy computation chip U that connects central processor CPU; Also further comprise the first current regulating circuit and the first voltage modulate circuit that are connected with said three-phase electrical energy computation chip U, the said first current regulating circuit also is connected with current transformer.Said switching value detection module comprises light at a distance from circuit and switching value measurement input port, and said switching value is measured input port and connected said central processor CPU through light at a distance from circuit, and it is four-way switch amount input end that said switching value is measured input port.Said expansion module includes the branch circuit detection module; Said branch circuit detection module is connected with the second current regulating circuit and the second voltage modulate circuit respectively; Said branch circuit detection module is ten two branch circuit detection modules, and this ten two branch circuits detection module is divided into four groups of three-phase loops or 12 single-phase loops.
This checkout equipment also includes the display part that is connected with central processor CPU, and this display part comprises first LED light, second LED light, LCD display, temperature sensor, quadruple linkage dish input port and alarm.
The present invention is simple in structure, and cost is low, and measuring accuracy is high; Indicating value is accurate; Owing to adopted compositions such as current transformer, modulate circuit, computing chip, central processing unit, multichannel total input-wire loop, branch branch road are monitored simultaneously, pass to central processing unit through current transformer modulate circuit, voltage modulate circuit and computing chip and handle; The output mux amount is carried out real time monitoring and control.
Description of drawings
Fig. 1 is the control synoptic diagram of multichannel multifunction power communication detection equipment of the present invention.
Embodiment
In conjunction with above-mentioned description of drawings specific embodiment of the present invention.
By knowing among Fig. 1; Detection module and background monitoring system that this multichannel multifunction power communication detection equipment comprises central processor CPU, is connected respectively with this central processor CPU; Said detection module comprises major loop detection module and expansion module; Said expansion module includes the branch circuit detection module; Said branch circuit detection module is connected with the second current regulating circuit and the second voltage modulate circuit respectively, and said branch circuit detection module is ten two branch circuit detection modules, and this ten two branch circuits detection module is divided into four groups of three-phase loops or 12 single-phase loops.This instrument adopts the multiloop monitoring of total many branches, and one total, and inlet wire main circuit voltage, electric current etc. are detected and backstage metering demonstration; The duplexure electric parameter was gathered in the loop in many minutes; Also have the input and output of multi-way switch amount simultaneously, temperature sensor detects external temperature, final output.With respect to multichannel multifunction power communication instrument in the past, the electric weight check point that obvious characteristics of this instrument is a major loop.Said major loop detection module comprises the three-phase electrical energy computation chip U that connects central processor CPU; Also further comprise the first current regulating circuit and the first voltage modulate circuit that are connected with said three-phase electrical energy computation chip U, the said first current regulating circuit also is connected with current transformer.Said switching value detection module comprises light at a distance from circuit and switching value measurement input port, and said switching value is measured input port and connected said central processor CPU through light at a distance from circuit.It is four-way switch amount input end that said switching value is measured input port.
This checkout equipment also includes the display part that is connected with central processor CPU, and this display part comprises first LED light, second LED light, LCD display, temperature sensor, quadruple linkage dish input port and alarm.
Hardware of the present invention mainly comprises major loop detection module and expansion module.Wherein the major loop detection module major loop three-phase current 1, major loop three-phase voltage 2, detect and electrical parameter calculates and is presented on the LCD display 14; Also comprise 6 supervision of four-way switch amount input end; 7 monitoring of four-way switch amount output terminal, external temperature sensor 13 is kept watch on, hummer 15 is reported to the police output and various running status (operation, communication, the input of four-way switch amount) are through 13 indications of first LED light.The major loop detection module is connected background monitoring system 9 through the RS485 communication interface and shows, background monitoring system 9 shows that all calculate electrical parameter, parameter is provided with and output shows and controls to the four-way switch amount.Expansion module comprises 10 collections of ten two road branch current modulate circuits, is input to and carries out electrical parameter calculating in the CPU, can show through LCD display 14, also can upload to background monitoring system 9 through CPU and show.Expansion module comprises that also ten two-way switch amounts input 11 shows through ten two-way switch flow controls, two LED lights 12, also can upload to background monitoring system 9 through CPU and show simultaneously.Ten two road electrical parameters calculate can be set to maximum four three-phase loops or 12 single-phase loops.
Major loop detection module three road electrical parameters: the forward path of three voltages of major loop, current sample adopts difference modes, and major loop three-phase current 1 gets into the electric current channel simulation input pin of high precision three-phase electrical energy computation chip U after through current transformer and current regulating circuit; Major loop three-phase voltage 2 is through getting into three-phase electrical energy computation chip U behind the voltage modulate circuit; Circuit such as digital signal processing through ADC integrated in the three-phase electrical energy computation chip U, reference voltage circuit and all power, electric degree, effective value, power factor and frequency measurement; Calculate active power, reactive power, applied power, active electrical degree and the idle electric degree measuring each phase and close phase; Also have the electrical parameters such as effective value, power factor, frequency of each phase current, voltage simultaneously, all electrical parameters are read among the CPU through the SPI interface.The zero-sequence current of major loop is input among the CPU through the current regulating circuit, goes out its zero-sequence current size through the CPU internal calculation.CPU can show the electrical parameter that all meters calculate through LCD display 14, also can show at background monitoring system 9 through communication interface.
The input of major loop detection module four-way switch amount: four-way switch amount input end 6 is respectively through the separated circuit of light on the major loop detection module; Current potential changes; Be input to respectively then and carry out conversion of signals in the CPU, on background monitoring system 9, demonstrate the switching value state by CPU through communication interface again; Pass through light behind circuit at four-way switch amount input end 6 simultaneously, its output connects first LED light, 13 pilot lamp respectively and indicates current switching value state.The input of four-way switch amount can connect common remote signalling (supervision of major loop circuit-breaker status), fire-fighting link, smog fire-fighting etc.
The output of major loop detection module four-way switch amount: major loop detection module four-way switch amount output terminal 7 can be passed to CPU through background monitoring system 9 controls; Then by CPU output switching value signal; Also can directly export the switching value signal by CPU according to setting, the four-way switch amount of CPU output is respectively through the separated circuit of light; Reach the purpose of switching value output control then through pilot relay adhesive or disconnection, the switching value output state shows on LCD display 14 simultaneously.Be output as example with the 1st way switch amount wherein, when sending drive signal, the relay contact adhesive is shown as closure state on the LCD display 14 simultaneously; When closing drive signal, relay contact breaks off, and is shown as off-state on the LCD display 14 simultaneously.Its switching value output can be set at earth leakage protection, warning output, trip signal, reactive-load compensation control etc. through software.
Communication interface explanation: communication interface can be accepted input signal again can outgoing signal, and spreads out of after handling signal through CPU again; And can be connected with background monitoring system and carry out data-switching, there is led state to show during the communication operation.
The temperature survey explanation: external temperature is input to the inner DA constant current source of CPU through external temperature sensor 8 and realizes; The temperature value that CPU comes out data acquisition and calculation is presented on the LCD display 14, also can upload to background monitoring system 9 through communication interface and show.
Buzzer warning is exported: CPU sets through internal processes, when various fault occurring, passes through hummer 15 warning outputs.
Quadruple linkage dish input: can control the feature operation of CPU through quadruple linkage dish input 5, function choosing-item such as realize that inner parameter is set, checked.
Expansion module: ten two tunnel branch's charge values calculate: ten two tunnel branch's charge values calculate, and can be set to maximum four three-phase loops or 12 single-phase loops.Principle is that major loop three-phase voltage 2 signals are through getting into the inner AD conversion of CPU, because when power that calculates each duplexure and power factor, need know the real part and the imaginary values of voltage behind the voltage modulate circuit.Ten two road branch currents 10 are through getting into the inner AD conversion of CPU behind the current regulating circuit.Each duplexure is through sampling to busbar voltage and each branch current; Adopt shaping DFT that sampled value is carried out vector calculus; Obtain the real part and the imaginary part of voltage, electric current respectively, and then calculate the electrical parameter such as effective value and power, power factor, electric degree of voltage, electric current.The electrical parameter that all CPU calculate may be displayed on the LCD display 14, also can upload to background monitoring system 9 through communication interface and show.
The input of ten two tunnel road branch switch amounts: the principle that ten No. two branch switch amounts input 11 is kept watch on is the same with the input of the switching value on major loop detection module supervision principle, and its function mainly is to be multiloop energy intelligence monitoring and controlling device expansion more switches amount status surveillance.Same its on off state is respectively through showing on ten two-way switch flow controls, one LED light 13, and CPU collects behind the on off state to upload on the background monitoring software 9 through communication interface and shows simultaneously.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. multichannel multifunction power communication detection equipment; Comprise central processor CPU, with detection module and background monitoring system that this central processor CPU is connected respectively, it is characterized in that: said detection module comprises major loop detection module and expansion module.
2. according to the said multichannel multifunction power of claim 1 communication detection equipment; It is characterized in that: said major loop detection module comprises current/voltage detecting unit and switching value detection module; The current/voltage detecting unit comprises the three-phase electrical energy computation chip U that connects central processor CPU; Also further comprise the first current regulating circuit and the first voltage modulate circuit that are connected with said three-phase electrical energy computation chip U, the said first current regulating circuit also is connected with current transformer.
3. according to the said multichannel multifunction power of claim 2 communication detection equipment; It is characterized in that: said switching value detection module comprises light at a distance from circuit and switching value measurement input port, and said switching value is measured input port and connected said central processor CPU through light at a distance from circuit.
4. according to the said multichannel multifunction power of claim 3 communication detection equipment, it is characterized in that: it is four-way switch amount input end that said switching value is measured input port.
5. according to each said multichannel multifunction power communication detection equipment in the claim 1 to 3; It is characterized in that: said expansion module includes the branch circuit detection module, and said branch circuit detection module is connected with the second current regulating circuit and the second voltage modulate circuit respectively.
6. according to the said multichannel multifunction power of claim 5 communication detection equipment, it is characterized in that: said branch circuit detection module is ten two branch circuit detection modules, and this ten two branch circuits detection module is divided into four groups of three-phase loops or 12 single-phase loops.
7. according to the said multichannel multifunction power of claim 1 communication detection equipment, it is characterized in that: this checkout equipment also includes the display part that is connected with central processor CPU, and this display part comprises first LED light, second LED light and LCD display.
8. according to the said multichannel multifunction power of claim 1 communication detection equipment, it is characterized in that: this checkout equipment also includes temperature sensor, quadruple linkage dish input port and the alarm that is connected with central processor CPU.
9. detection method that adopts each said checkout equipment in the claim 1 to 8 is characterized in that: this method also further detects duplexure when major loop detects carrying out.
10. detection method according to claim 9 is characterized in that: said major loop detects and comprises that three-phase current, three-phase voltage detect, and simultaneously, comprises that also switching value detects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101959568A CN102353859A (en) | 2011-07-13 | 2011-07-13 | Multi-path multifunctional power communication detection equipment and detection method for same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101959568A CN102353859A (en) | 2011-07-13 | 2011-07-13 | Multi-path multifunctional power communication detection equipment and detection method for same |
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| CN102353859A true CN102353859A (en) | 2012-02-15 |
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| CN2011101959568A Pending CN102353859A (en) | 2011-07-13 | 2011-07-13 | Multi-path multifunctional power communication detection equipment and detection method for same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383410A (en) * | 2013-07-02 | 2013-11-06 | 重庆跃腾电器有限公司 | Multifunctional power meter |
| CN109782702A (en) * | 2018-12-06 | 2019-05-21 | 安徽凯川电力保护设备有限公司 | A kind of mixing instrument method for allocating tasks based on multi-task architecture |
| CN111060735A (en) * | 2019-12-30 | 2020-04-24 | 重庆莱格特电气有限公司 | Low-voltage intelligent measurement and control system and method |
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| JP2000258484A (en) * | 1999-03-10 | 2000-09-22 | Hioki Ee Corp | Connection state detector in power meter |
| CN201397359Y (en) * | 2009-03-20 | 2010-02-03 | 长沙威胜信息技术有限公司 | Metering and monitoring module for electric power remote terminal unit |
| CN201732120U (en) * | 2010-03-10 | 2011-02-02 | 保定市博达同创电力科技有限公司 | Power consumption information collecting and monitoring system in base station |
| CN201749152U (en) * | 2010-07-22 | 2011-02-16 | 广东雅达电子股份有限公司 | Multi-loop direct-current electric energy meter |
| CN202141768U (en) * | 2011-07-13 | 2012-02-08 | 深圳市海亿达能源科技股份有限公司 | Multichannel multifunctional electric power communication detecting device |
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2011
- 2011-07-13 CN CN2011101959568A patent/CN102353859A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000258484A (en) * | 1999-03-10 | 2000-09-22 | Hioki Ee Corp | Connection state detector in power meter |
| CN201397359Y (en) * | 2009-03-20 | 2010-02-03 | 长沙威胜信息技术有限公司 | Metering and monitoring module for electric power remote terminal unit |
| CN201732120U (en) * | 2010-03-10 | 2011-02-02 | 保定市博达同创电力科技有限公司 | Power consumption information collecting and monitoring system in base station |
| CN201749152U (en) * | 2010-07-22 | 2011-02-16 | 广东雅达电子股份有限公司 | Multi-loop direct-current electric energy meter |
| CN202141768U (en) * | 2011-07-13 | 2012-02-08 | 深圳市海亿达能源科技股份有限公司 | Multichannel multifunctional electric power communication detecting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103383410A (en) * | 2013-07-02 | 2013-11-06 | 重庆跃腾电器有限公司 | Multifunctional power meter |
| CN109782702A (en) * | 2018-12-06 | 2019-05-21 | 安徽凯川电力保护设备有限公司 | A kind of mixing instrument method for allocating tasks based on multi-task architecture |
| CN111060735A (en) * | 2019-12-30 | 2020-04-24 | 重庆莱格特电气有限公司 | Low-voltage intelligent measurement and control system and method |
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Application publication date: 20120215 |