CN102291112A - Radio frequency controllable switch based on power line carrier and power optical fiber channel - Google Patents
Radio frequency controllable switch based on power line carrier and power optical fiber channel Download PDFInfo
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- CN102291112A CN102291112A CN201110124961XA CN201110124961A CN102291112A CN 102291112 A CN102291112 A CN 102291112A CN 201110124961X A CN201110124961X A CN 201110124961XA CN 201110124961 A CN201110124961 A CN 201110124961A CN 102291112 A CN102291112 A CN 102291112A
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Abstract
The invention discloses a radio frequency controllable switch based on a power line carrier and a power optical fiber channel, and belongs to a circuit switching device in the field of power. The switch comprises a main station and a slave station, wherein the main station comprises a singlechip and a peripheral device thereof, a liquid crystal display screen, a key, a wireless receiving and transmitting module and a power supply; the singlechip is connected with the key, the liquid crystal display screen and the wireless receiving and transmitting module respectively; the power supply is connected with the singlechip, the liquid crystal display screen, the key and the wireless receiving and transmitting module respectively; the slave station comprises a singlechip and a peripheral device thereof, a wireless receiving and transmitting module, a photoelectric coupler, a solid state relay, a contactor switch, a 485 conversion interface and a power supply; the singlechip is connected with the wireless receiving and transmitting module, the photoelectric coupler and the 485 conversion interface respectively; an input end of the solid state relay is connected with an output end of the photoelectric coupler, and an output end of the solid state relay is connected with the contactor switch; and the power supply is connected with the singlechip, the photoelectric coupler, the solid state relay, the 485 conversion interface and the wireless receiving and transmitting module respectively.
Description
Technical field
The invention belongs to the circuit switchgear of power domain, particularly relate to a kind of low-voltage power switching device that is based upon under power line carrier, power optical fiber and the 230M power private network passage.The present invention can be applicable to the load open and close controlling of 220v/380v circuit, can work under the framework of intelligent grid, realizes long-distance intelligent control.
Background technology
At present, though the control switch of existing intelligent electric meter can be realized the open and close controlling of circuit, there are the following problems for it:
1, the built-in ac solid relay SSR of intelligent electric meter (
SolidState reley), be a kind of contactless break-make electronic switch, such solid-state relay has bigger sensitiveness to surge (or overload) electric current.Such as: the household electrical appliance in our daily life, the use capacity just has nothing in common with each other, and user mode is also made a world of difference, and population size is also continuing rising.Like this, be easy to cause the problem of secure context, such as: because of the fire incident of electricity fire initiation.
2, there are a tangible problem in the electric energy metrical function of intelligent electric meter and the integrated design of control switch, and that is exactly the integral replacing that the damage of control switch parts just needs intelligent electric meter; This just makes the production cost of intelligent electric meter and user's use cost reduce.
3, the appearance of intelligent electric meter will inevitably be eliminated the various ammeter of old model, and the integral replacing amount is very big; This is comprising the old-fashioned electronic electric energy meter of huge stocks, and the energy-saving and emission-reduction angle from " 12 " planning is wasted greatly.
4, still in improving, popularize needs the quite a while to the structure of intelligent grid, can not satisfy the work of in time taking over of the current power enterprise electricity charge.For example: after money was handed in resident's arrearage, electrical power services department can not accomplish in time, fast to recover to send because the user who faces in the short time is more.Electric power enterprise for emphasizing that sector-style is built causes a service difficult problem easily.And the work during this, needing to open the table case, wasteness uses a large amount of sealing locks, has increased the operation cost of enterprise.
Summary of the invention
At the above-mentioned shortcoming of existing intelligent electric meter existence, but the invention provides a kind of based on the radio frequency control switch under power line carrier and the power optical fiber passage.Every requirement that this control switch is safe in utilization, can satisfy intelligent grid, and the various electronic electric energy meter of old model is worked under the framework of intelligent grid, continue to use.
To achieve these goals, the present invention adopts following technical scheme, but a kind of based on the radio frequency control switch under power line carrier and the power optical fiber passage, comprises main website and slave station two parts,
Described main website comprises single-chip microcomputer and peripheral components, LCDs, button, radio receiving transmitting module and power supply, described single-chip microcomputer is connected with button, LCDs and radio receiving transmitting module respectively, and described power supply is connected with single-chip microcomputer, LCDs, button and radio receiving transmitting module respectively;
Described slave station comprises single-chip microcomputer and peripheral components, radio receiving transmitting module, photoelectrical coupler, solid-state relay, contactless contactor, 485 translation interfaces and power supply, described single-chip microcomputer is connected with radio receiving transmitting module, photoelectrical coupler and 485 translation interfaces respectively, and the input of described solid-state relay is connected with the output of photoelectrical coupler, output is connected with contactless contactor; Described power supply is connected with single-chip microcomputer, photoelectrical coupler, solid-state relay, 485 translation interfaces and radio receiving transmitting module respectively.
In order to make the present invention have bigger extending space, described main website also is provided with external memory storage, and described external memory storage is connected with described single-chip microcomputer and power supply respectively.
In order to make the present invention have bigger extending space, described slave station also is provided with external memory storage, and described external memory storage is connected with described single-chip microcomputer and power supply respectively.
Beneficial effect of the present invention:
The present invention both can work under the framework of intelligent grid, accepted PC control, also can be independently with RF-wise work (hand-hold type).In the mode of weak current control heavy current, safety realizes the break-make control of heavy current; The various electronic electric energy meter of existing old model needn't be changed, can realize the remote intelligent control of low voltage electric network demand side.Its operating voltage is 220v/380v, and the control rated current is more than 30A reaches, and maximum breaking current more than power 25KW reaches, and can be expanded more than 300A reaches.The present invention is applicable to low pressure resident and other low-voltage power user.
Existing intelligent electric meter and of the present invention as follows according to table:
| Existing intelligent electric meter | 340 yuan of single table costs | 10 families | 3400 yuan | Eliminate old table, produce waste |
| The present invention | Single 300 yuan | 1-10 family and abovely all can | 300 yuan | Do not produce waste |
Description of drawings
Fig. 1 is the schematic block circuit diagram of main website of the present invention;
Fig. 2 is the schematic block circuit diagram of slave station of the present invention;
Fig. 3 is the circuit theory diagrams of the main website of the embodiment of the invention;
Fig. 4 is the circuit theory diagrams of the slave station of the embodiment of the invention.
Embodiment
The present invention is described further below in conjunction with the drawings and specific embodiments:
But a kind of based on the radio frequency control switch under power line carrier and the power optical fiber passage, comprise main website and slave station two parts,
As shown in Figure 1, described main website comprises single-chip microcomputer and peripheral components, LCDs, button, radio receiving transmitting module and power supply, described single-chip microcomputer is connected with button, LCDs and radio receiving transmitting module respectively, and described power supply is connected with single-chip microcomputer, LCDs, button and radio receiving transmitting module respectively; In order to make the present invention have bigger extending space, described main website also is provided with external memory storage, and described external memory storage is connected with described single-chip microcomputer and power supply respectively.
As shown in Figure 2, described slave station comprises single-chip microcomputer and peripheral components, radio receiving transmitting module, photoelectrical coupler, solid-state relay, contactless contactor, 485 translation interfaces and power supply, described single-chip microcomputer is connected with radio receiving transmitting module, photoelectrical coupler and 485 translation interfaces respectively, and the input of described solid-state relay is connected with the output of photoelectrical coupler, output is connected with contactless contactor; Described power supply is connected with single-chip microcomputer, photoelectrical coupler, solid-state relay, 485 translation interfaces and radio receiving transmitting module respectively; Described contactless contactor is a normally off.In order to make the present invention have bigger extending space, described slave station also is provided with external memory storage, and described external memory storage is connected with described single-chip microcomputer and power supply respectively.
Single-chip microcomputer adopts Freescale single-chip microcomputer MC9S08AC16 in the control switch of the present invention, and this single-chip microcomputer has 44 pin, and power consumption is about 10w, and its quiescent dissipation is 2-3w; External memory storage adopts EEPROM scratch pad memory ATM24C02, and radio receiving transmitting module adopts the nRF24L01 radio frequency chip; LCDs adopts 1602, and the model that the voltage transitions chip adopts is AS1117, and the model that 485 electric level interface chips adopt is MAX485; The model that photoelectrical coupler adopts is TLP521, and the model that drives the relay employing is ULN2803, and the model that solid-state relay adopts is PA1a-24V.
As shown in Figure 3, the physical circuit annexation of described main website is:
The 2nd pin ground connection VSS of radio receiving transmitting module nRF24L01, the 3rd pin of radio receiving transmitting module nRF24L01 is connected with the 10th pin of single-chip microcomputer MC9S08AC16 by resistance R 54, the 4th pin of radio receiving transmitting module nRF24L01 is connected with the 13rd pin of single-chip microcomputer MC9S08AC16 by resistance R 51, the 5th pin of radio receiving transmitting module nRF24L01 is connected with the 14th pin of single-chip microcomputer MC9S08AC16 by resistance R 52, the 6th pin of radio receiving transmitting module nRF24L01 is connected with the 15th pin of single-chip microcomputer MC9S08AC16 by resistance R 53, the 7th pin of radio receiving transmitting module nRF24L01 is connected with the 12nd pin of single-chip microcomputer MC9S08AC16 by resistance R 50, the 8th pin of radio receiving transmitting module nRF24L01 is connected with the 11st pin of single-chip microcomputer MC9S08AC16 by resistance R 55, and the 10th pin of radio receiving transmitting module nRF24L01 is connected with the 3.3V power supply.The 1-4 pin of external memory storage ATM24C02 is connected with ground respectively, the 5th pin of external memory storage ATM24C02 is connected with the 5V power supply through resistance R 07, the 6th pin of external memory storage ATM24C02 is connected with the 5V power supply through resistance R 06, and the 8th pin of external memory storage ATM24C02 is connected with the 5V power supply.The 1st pin of 485 electric level interface chip MAX485 is connected with the 9th pin of single-chip microcomputer MC9S08AC16, the 2nd, 3 pins of 485 electric level interface chip MAX485 are connected with the 7th pin of single-chip microcomputer MC9S08AC16 respectively, the 4th pin of 485 electric level interface chip MAX485 is connected with the 8th pin of single-chip microcomputer MC9S08AC16, the 5th pin of 485 electric level interface chip MAX485 is connected with ground, the 8th pin of 485 electric level interface chip MAX485 is connected with the 5V power supply, and the 6th, 7 pins of 485 electric level interface chip MAX485 are 485 external interface.The 3rd pin of background debugging interface BDM is connected with the 36th pin of single-chip microcomputer MC9S08AC16, the 2nd pin of background debugging interface BDM is connected with ground, the 6th pin of background debugging interface BDM is connected with the 5V power supply, and the 4th pin of background debugging interface BDM is connected with the 3rd pin of single-chip microcomputer MC9S08AC16.The pin 1,16 of LCDs 1602 is connected with ground, 1602 pin 2,15 is connected with the 5V power supply, 1602 pin 4-14 is connected with the pin 1,44,4,18,19,20,21,22,33,42,43 of single-chip microcomputer MC9S08AC16 respectively, 1602 pin 3 one tunnel is connected with the 5V power supply through resistance R 60, and another road is connected with ground through resistance R 61.The output of 4*4 button is connected with the pin 23,24,25,26,27,28,31,32 of single-chip microcomputer MC9S08AC16 respectively.
As shown in Figure 4, the physical circuit annexation of described slave station is:
The 2nd pin ground connection VSS of radio receiving transmitting module nRF24L01, the 3rd pin of radio receiving transmitting module nRF24L01 is connected with the 10th pin of single-chip microcomputer MC9S08AC16 by resistance R 54, the 4th pin of radio receiving transmitting module nRF24L01 is connected with the 13rd pin of single-chip microcomputer MC9S08AC16 by resistance R 51, the 5th pin of radio receiving transmitting module nRF24L01 is connected with the 14th pin of single-chip microcomputer MC9S08AC16 by resistance R 52, the 6th pin of radio receiving transmitting module nRF24L01 is connected with the 15th pin of single-chip microcomputer MC9S08AC16 by resistance R 53, the 7th pin of radio receiving transmitting module nRF24L01 is connected with the 12nd pin of single-chip microcomputer MC9S08AC16 by resistance R 50, the 8th pin of radio receiving transmitting module nRF24L01 is connected with the 11st pin of single-chip microcomputer MC9S08AC16 by resistance R 55, and the 10th pin of radio receiving transmitting module nRF24L01 is connected with the 3.3V power supply.The 1-4 pin of external memory storage ATM24C02 is connected with ground respectively, the 5th pin of external memory storage ATM24C02 is connected with the 5V power supply through resistance R 07, the 6th pin of external memory storage ATM24C02 is connected with the 5V power supply through resistance R 06, and the 8th pin of external memory storage ATM24C02 is connected with the 5V power supply.The 1st pin of 485 electric level interface chip MAX485 is connected with the 9th pin of single-chip microcomputer MC9S08AC16, the 2nd, 3 pins of 485 electric level interface chip MAX485 are connected with the 7th pin of single-chip microcomputer MC9S08AC16 respectively, the 4th pin of 485 electric level interface chip MAX485 is connected with the 8th pin of single-chip microcomputer MC9S08AC16, the 5th pin of 485 electric level interface chip MAX485 is connected with ground, the 8th pin of 485 electric level interface chip MAX485 is connected with the 5V power supply, and the 6th, 7 pins of 485 electric level interface chip MAX485 are 485 external interface.The 3rd pin of background debugging interface BDM is connected with the 36th pin of single-chip microcomputer MC9S08AC16, the 2nd pin of background debugging interface BDM is connected with ground, the 6th pin of background debugging interface BDM is connected with the 5V power supply, and the 4th pin of background debugging interface BDM is connected with the 3rd pin of single-chip microcomputer MC9S08AC16.The input of the first photoelectrical coupler G1 is connected with the pin 28 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G1 is connected with the pin 1 of 24V power supply, driving relay ULN2803 respectively; The input of the second photoelectrical coupler G2 is connected with the pin 27 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G2 is connected with the pin 2 of 24V power supply, driving relay ULN2803 respectively; The input of the 3rd photoelectrical coupler G3 is connected with the pin 26 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G3 is connected with the pin 3 of 24V power supply, driving relay ULN2803 respectively; The input of the 4th photoelectrical coupler G4 is connected with the pin 25 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G4 is connected with the pin 4 of 24V power supply, driving relay ULN2803 respectively; The input of the 5th photoelectrical coupler G5 is connected with the pin 24 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G5 is connected with the pin 5 of 24V power supply, driving relay ULN2803 respectively; The input of the 6th photoelectrical coupler G6 is connected with the pin 23 of 5V power supply, single-chip microcomputer MC9S08AC16 respectively, and the output of G6 is connected with the pin 6 of 24V power supply, driving relay ULN2803 respectively.The pin 9 that drives relay ULN2803 is connected with ground, the pin 10 of ULN2803 is connected with the 24V power supply, and the pin 18-13 of ULN2803 is connected with an end of the coil of the first solid-state relay RLY21, the second solid-state relay RLY22, the 3rd solid-state relay RLY23, the 4th solid-state relay RLY24, the 5th solid-state relay RLY25, the 6th solid-state relay RLY26 respectively; The other end of RLY21, RLY22, RLY23, RLY24, RLY25, RLY26 coil is connected with the 24V power supply; The normally-closed contact of RLY21, RLY22, RLY23, RLY24, RLY25, RLY26 is connected with contactless contactor respectively.
Control switch of the present invention divides main website and slave station two parts, and main website is a hand-hold type, the button input instruction, and LCDs shows, controls slave station by radio receiving transmitting module with RF-wise.Slave station is controlled end, accepts PC control by 485 external interface, also accepts the control of main website with RF-wise simultaneously.
Below in conjunction with accompanying drawing a use of the present invention is described:
During use, slave station of the present invention is fixed on the mounting guide rail in the electric energy metering box, the contactless contactor of slave station is connected with the outlet side of electric supply meter, and the outlet of contactless contactor is connected to the customer charge side.
Under the passage that power line carrier, power optical fiber or 230M power private network are set up, be under the intelligent grid, slave station passes through 485 external interface, accept the instruction that the host computer transmission comes, by single-chip microcomputer MC9S08AC16 control, by the photoelectrical coupler driving solid relay, solid-state relay drives the contactless contactor of normally off again, thereby realize the current switching under 220V or the 380V voltage, the control heavy current.
Under the situation that does not have above-mentioned passage to set up, in other words under the condition that intelligent grid does not have to form, the main website that sets up voluntarily, by the button input instruction, LCDs shows, instruct to slave station with the RF-wise transmission by radio receiving transmitting module, control by single-chip microcomputer MC9S08AC16, by photoelectricity coupling buffer circuit, control Driver Circuit, and then driving solid relay again, solid-state relay drive the contactless contactor of normally off again, thereby realize the current switching under 220V or the 380V voltage, the control heavy current.
Claims (3)
1. but one kind based on the radio frequency control switch under power line carrier and the power optical fiber passage, it is characterized in that, comprises main website and slave station two parts,
Described main website comprises single-chip microcomputer and peripheral components, LCDs, button, radio receiving transmitting module and power supply, described single-chip microcomputer is connected with button, LCDs and radio receiving transmitting module respectively, and described power supply is connected with single-chip microcomputer, LCDs, button and radio receiving transmitting module respectively;
Described slave station comprises single-chip microcomputer and peripheral components, radio receiving transmitting module, photoelectrical coupler, solid-state relay, contactless contactor, 485 translation interfaces and power supply, described single-chip microcomputer is connected with radio receiving transmitting module, photoelectrical coupler and 485 translation interfaces respectively, and the input of described solid-state relay is connected with the output of photoelectrical coupler, output is connected with contactless contactor; Described power supply is connected with single-chip microcomputer, photoelectrical coupler, solid-state relay, 485 translation interfaces and radio receiving transmitting module respectively.
But 2. according to claim 1 a kind of based on the radio frequency control switch under power line carrier and the power optical fiber passage, it is characterized in that described main website also is provided with external memory storage, described external memory storage is connected with described single-chip microcomputer and power supply respectively.
But 3. according to claim 1 a kind of based on the radio frequency control switch under power line carrier and the power optical fiber passage, it is characterized in that described slave station also is provided with external memory storage, described external memory storage is connected with described single-chip microcomputer and power supply respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110124961 CN102291112B (en) | 2011-05-13 | 2011-05-13 | Radio frequency controllable switch based on power line carrier and power optical fiber channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110124961 CN102291112B (en) | 2011-05-13 | 2011-05-13 | Radio frequency controllable switch based on power line carrier and power optical fiber channel |
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| Publication Number | Publication Date |
|---|---|
| CN102291112A true CN102291112A (en) | 2011-12-21 |
| CN102291112B CN102291112B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110124961 Expired - Fee Related CN102291112B (en) | 2011-05-13 | 2011-05-13 | Radio frequency controllable switch based on power line carrier and power optical fiber channel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909326A (en) * | 2005-08-05 | 2007-02-07 | 万达集团股份有限公司 | Low-voltage intelligent anti-theft measuring pocket |
| CN2921983Y (en) * | 2006-07-25 | 2007-07-11 | 于国朝 | Long-distance high and low voltage reader monitoring electricity meter apparatus |
| CN201449658U (en) * | 2009-08-20 | 2010-05-05 | 江苏省电力公司江阴市供电公司 | Novel wireless meter reading device |
-
2011
- 2011-05-13 CN CN 201110124961 patent/CN102291112B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909326A (en) * | 2005-08-05 | 2007-02-07 | 万达集团股份有限公司 | Low-voltage intelligent anti-theft measuring pocket |
| CN2921983Y (en) * | 2006-07-25 | 2007-07-11 | 于国朝 | Long-distance high and low voltage reader monitoring electricity meter apparatus |
| CN201449658U (en) * | 2009-08-20 | 2010-05-05 | 江苏省电力公司江阴市供电公司 | Novel wireless meter reading device |
Non-Patent Citations (1)
| Title |
|---|
| 王月志等: "无线电力负荷管理双向终端机", 《电子测量技术》, no. 2, 28 February 2005 (2005-02-28), pages 39 - 40 * |
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| CN102291112B (en) | 2013-12-25 |
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