CN205983827U - Wireless information acquisition device of intelligent electric energy meter - Google Patents
Wireless information acquisition device of intelligent electric energy meter Download PDFInfo
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- CN205983827U CN205983827U CN201620970169.4U CN201620970169U CN205983827U CN 205983827 U CN205983827 U CN 205983827U CN 201620970169 U CN201620970169 U CN 201620970169U CN 205983827 U CN205983827 U CN 205983827U
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Abstract
The utility model discloses a wireless information acquisition device of intelligent electric energy meter, it includes power supply circuit, control circuit, communication circuit, clock circuit, memory circuit, LED indicating circuit and protection circuit, and power supply circuit includes high -frequency transformer, rectifier circuit, on -off control chip, voltage stabilizing circuit, filter circuit and control circuit 0, and communication circuit includes 485 communication circuit, infrared communication circuit, remote signalling circuit and GPRS communication circuit, the system protection circuit includes first protection circuit, second protection circuit, third protection circuit and fourth protection circuit, the utility model discloses the design provides the power supply circuit of three routes power, three communication circuit and four protection circuits in wireless information acquisition device of intelligent electric energy meter, preserves during the power failure that data are not lost, the clock continues to move and do not stop, satisfying the operation requirement under the different environment condition with continuouslying, when thunder and lightning and forceful electric power misconnection, can effectively protect collector and communication circuit not to receive destruction.
Description
Technical field
This utility model is related to electric energy meter information acquiring technology field, more particularly, to a kind of intelligent power table wireless messages
Harvester.
Background technology
The design of existing intelligent power table wireless information collection device both domestic and external has two kinds, and one kind is using micro-
Power wireless communications technology, one kind is using general packet radio service technology (GPRS)：
Wherein micropower wireless communication technology scheme, circuit mainly includes power circuit, control circuit and telecommunication circuit, leads to
Letter circuit includes RS485 telecommunication circuit and micro power radio communication circuit, and program uplink communication adopts micropower wireless networking
Mode come to realize receive and send data, downlink communication to complete by the way of wired 485 electric energy meter data collection and
Storage, its advantage be check meter that success rate is high, group net spee is fast, without manual intervention, shortcoming is that communication distance is short is less than 1000
, it is impossible to be widely used in intelligent power table data acquisition, the intelligent power table being suitable only for intensive installation is in-plant for rice
Data acquisition.
Scheme wherein Ji Yu general packet radio service technology (GPRS), circuit mainly includes power circuit, controls electricity
Road and telecommunication circuit, telecommunication circuit includes GPRS telecommunication circuit, RS485 telecommunication circuit and infrared communication circuit, and the program is up
Communication to be realized receiving by the way of GPRS communication and to send data, and downlink communication to complete electricity by the way of 485 communications
The collection of energy table data and storage, its shortcoming is complex circuit designs, high cost.
Utility model content
In place of the purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of real-time, have many
The intelligent power table wireless information collection device of weight defencive function.
A kind of intelligent power table wireless information collection device, including power circuit, control circuit, telecommunication circuit, clock electricity
Road, storage circuit, LED indicating circuit and protection circuit,
Described telecommunication circuit includes RS485 telecommunication circuit, infrared communication circuit, remote signalling circuit and GPRS telecommunication circuit；
Described power circuit exports the separate power supply in three tunnels：It is respectively the first power supply, second source and the 3rd electricity
Source, the first power supply is to control circuit, clock circuit storage circuit, LED indicating circuit, infrared communication circuit and GPRS telecommunication circuit
There is provided power supply, second source provides power supply to RS485 telecommunication circuit and remote signalling circuit, the 3rd power supply provides to the second protection circuit
Power supply, during normal work, clock circuit, by the first power source, provides power supply by reserve battery during power failure；
Described protection circuit includes the first protection circuit, the second protection circuit, the 3rd protection circuit and the 4th protection electricity
Road, located at the input of power circuit, described second protection circuit is defeated located at the 3rd power circuit for described first protection circuit
Go out end, described 3rd protection circuit is led to located at RS485 located at the power input of GPRS telecommunication circuit, described 4th protection circuit
The outfan of letter circuit.
Described control circuit controls telecommunication circuit, storage circuit and LED indicating circuit respectively, and clock circuit is given and controlled electricity
Road provides clock data.
By be designed to provide in intelligent power table wireless information collection device the power circuit of many power supplys, three lead to
Letter circuit and four protection circuits, and using special wireless communication chips and the collection real-time of microcontroller composition, management
With the intelligent power table wireless information collection device of data storage and information, and during power-off, data is not lost, clock does not stop,
Enable the collection of electric network data and the monitoring of quality of power supply curve and management, meet the large-scale centralized automatic meter-reading of power consumer and
Data acquisition.
The first described protection circuit includes varistor, chromatic circle resistance and PTC thermistor.
First protection circuit is struck by lightning in system, protection system is not destroyed in the case of superpressure.
The second described protection circuit includes 1 independent switch control chip.
Second protection circuit ensures to be subject to not resulting in the collapse of overall power supply under forceful electric power attack it is ensured that harvester in system
Main power circuit normal work.
The 3rd described protection circuit includes 1 independent adjustable output linearity manostat.
3rd protection circuit provides reliable working power it is ensured that the normal work of GPRS telecommunication circuit.
The 4th described protection circuit includes anti-thunder tube, TVS pipe and critesistor.
4th protection circuit can protect 485 communication lines not to be damaged in thunderbolt and forceful electric power misconnection.
Described RS485 telecommunication circuit is made up of 485 chips and peripheral circuit, the input of every road RS485 telecommunication circuit, defeated
Go out end to connect by the RS485 communication input of photoelectrical coupler and control circuit, outfan, complete data communication and transmitting-receiving control
System.
Described infrared communication circuit is made up of infrared receiving circuit, infrared transmitting circuit and 38KHZ modulation circuit, infrared
The infrared communication input of the input of telecommunication circuit, outfan and control circuit, outfan connect, and complete data communication and carrier wave is adjusted
System demodulation.
Described power circuit provides power supply for system, including high frequency transformer, rectification circuit, switch control chip, voltage stabilizing
Circuit, filter circuit and reserve battery, described high frequency transformer includes primary coil and secondary coil.
Described control circuit control system is run, micro- including 32 RISC based on ARM Cortex-M3 processor cores
Controller MB9BF218S and peripheral circuit.
Described clock circuit includes R8025T clock chip and peripheral circuit.
Described storage circuit includes FM24CL64BG chip and FLASH flash memory circuit and peripheral circuit.
In sum, this utility model following advantage compared to existing technology：
This utility model passes through to be designed to provide power circuit, three telecommunication circuits and four protection electricity of many power supplys
Road, and using special wireless communication chips and the real-time collection of microcontroller composition, management and data storage and information
Intelligent power table wireless information collection device, and during power-off, data is not lost, clock does not stop, and enables adopting of electric network data
The monitoring of collection and quality of power supply curve and management, meet the collection of power consumer large-scale centralized automatic meter-reading data；This practicality is new
Type in thunderbolt and forceful electric power overvoltage, do not destroyed by energy effective protection harvester and telecommunication circuit.
Brief description
Fig. 1 is the system architecture diagram of this utility model intelligent power table wireless information collection device.
Fig. 2 is the circuit diagram a of this utility model RS485 telecommunication circuit.
Fig. 3 is the circuit diagram b of this utility model RS485 telecommunication circuit.
Fig. 4 is the circuit diagram of this utility model infrared communication circuit.
Fig. 5 is the circuit diagram of this utility model first protection circuit.
Fig. 6 is the circuit diagram of this utility model second protection circuit.
Fig. 7 is the circuit diagram of this utility model the 3rd protection circuit.
Fig. 8 is the circuit diagram a of this utility model the 4th protection circuit.
Fig. 9 is the circuit diagram b of this utility model the 4th protection circuit.
Specific embodiment
With reference to embodiment, this utility model is described in more detail.
Embodiment 1
This utility model intelligent power table wireless information collection device includes power circuit 1, control circuit 2, telecommunication circuit
3rd, clock circuit 4, storage circuit 5, LED indicating circuit 6, protection circuit 7, wherein：
Described power circuit 1 provides power supply for system, including high frequency transformer, rectification circuit, switch control chip, voltage stabilizing
Circuit, filter circuit and reserve battery, described high frequency transformer arranges 1 primary coil and 3 secondary coils；
Described control circuit 2 control system is run, micro- including 32 RISC based on ARM Cortex-M3 processor cores
Controller MB9BF218S and peripheral circuit；
Described telecommunication circuit 3 includes 485 telecommunication circuits, infrared communication circuit, remote signalling circuit and GPRS telecommunication circuit；
Described clock circuit 4 includes R8025T clock chip and peripheral circuit；
Described storage circuit 5 includes FM24CL64BG chip and FLASH flash memory circuit and peripheral circuit；
Described LED indicating circuit 6 includes 3 road monochromatic LEDs and 3 tunnel dual-colored LED circuit；
Described protection circuit 7 includes the first protection circuit 71, the second protection circuit 72, the 3rd protection circuit 73 and the 4th guarantor
Protection circuit 74；, located at the input of power circuit, described second protection circuit 72 is located at power supply 3 for described first protection circuit 71
Outfan, described 3rd protection circuit 73 located at the power input of GPRS telecommunication circuit, described 4th protection circuit 74 located at
The outfan of RS485 telecommunication circuit.
In the present embodiment, control circuit 2 is using 32 digit RISC micro controllers based on ARM Cortex-M3 processor cores
MB9BF218S chip, described MB9BF218S chip passes through to execute descending leading between RS485 communication channel and intelligent power table
Letter, the electric quantity data of collection intelligent power table and electrical network analog parameter etc.；Described MB9BF218S chip is communicated by GPRS and believes
Uplink communication is executed, the collection information of the storage that has been analyzed, processes and classified is uploaded to main website, realizes between road and main website
The monitoring of quality of power supply curve and management.
The pin 5 of control circuit 2 microprocessor MB9BF218S（CTR1）The 2nd foot with termination power photoelectrical coupler U2
Connect, its pin 16（RXD1）It is connected with the 4th foot of termination power photoelectrical coupler U3, its pin 17（TX1）With termination power
2nd foot of photoelectrical coupler U8 connects, and completes the data communication of RS485 telecommunication circuit 1 and transmitting-receiving controls；Its pin 26（RXD2）
It is connected with the 4th foot of termination power photoelectrical coupler U11, its pin 27（TX2）With termination power photoelectrical coupler U12 the 2nd
Foot connects, its pin 28（CTR2）It is connected with the 2nd foot of termination power photoelectrical coupler U20, complete RS485 telecommunication circuit 2
Data communication and transmitting-receiving control.
The infrared communication circuit of telecommunication circuit 3 includes infrared receiver, infrared emission and three circuit of carrier modulation, infrared connects
The infrared remote receiver US receiving circuit adopts FM-9038LM-5CN, the pin 62 of its 1st foot and microprocessor MB9BF218S
（RXDH）Connect, the colelctor electrode of PNP type triode Q4 of infrared transmitting circuit passes through resistance R31 and microprocessor MB9BF218S
Pin 7（TXDH）Connect, the colelctor electrode of PNP type triode Q10 of carrier modulation circuit passes through resistance R30 and microprocessor
The pin 63 of MB9BF218S（38KHz）Connect, complete the demodulation of 38KHz carrier modulation, the reception of infrared communication data and transmission；
Infrared communication carries out parameter initialization mainly for the scene of palm PC to harvester, scene to plant maintenance, monitoring, meanwhile,
The electricity of storage and various ammeter information in harvester can be copied and accepted in scene.Palm PC and harvester adopt far-infrared communication,
Radio communication in 4 meters, easy to use, safe.
The remote signalling circuit of telecommunication circuit 3 passes through the 4th foot and control circuit 2 microprocessor of termination power photoelectrical coupler U1
The pin 29 of MB9BF218S（YX）Connect, complete the Real-time Collection transmission of field data by remote signalling communication.
The GPRS telecommunication circuit selected moduleization design of telecommunication circuit 3, design is referred to by GPRS communication chip, power supply and network
Show lamp, SIM, radio-frequency antenna and peripheral circuit composition.GPRS communication chip is selected and is aimed at clear data application requirement and design
FIBOCOM G620 chip, this chip supports GSM/GPRS 850/900/1800/1900MHz tetra- frequency of global general-use, built-in
ICP/IP protocol stack, GPRS data connects reliable, its pin 17,18（BATT）For working power input, by adjustable output lead
Property manostat MIC29302WU provide running voltage VBATT.One end of power supply indicator connects running voltage VBATT, the other end
It is grounded by resistance R1, power supply instruction function during electricity in realization.Network display lamp one end connects running voltage VBATT, the other end
It is connected with the base stage of audion VT3 by resistance R310, the emitter stage of audion VT3 passes through drawing of resistance R308 and G620 chip
Foot 5（LPG）Connect, realize network communication status instruction function.The pin 11 of GPRS communication chip FIBOCOM G620（RESET_
N）By resistance R10 and pin 21（POWER_ON）Connect, its pin 21（POWER_ON）By diode D4 and microprocessor
The pin 9 of MB9BF218S（GPIO）Connect, its pin 2（CTS）The base stage first passing through resistance R11 with audion VT302 is connected,
Then the emitter stage of audion VT302 passes through resistance R7, R12 again and the pin 8 of control circuit 2 microprocessor MB9BF218S connects
Connect, its pin 22（RTS）It is connected with the pin 13 of control circuit 2 microprocessor MB9BF218S by resistance R30, its pin 7
（SIM_CLK）, pin 8（SIM_DATA）, pin 9（VSIM）, pin 10（SIM_RST）Respectively with SIM interface 4,3,6,5 even
Connect, its pin 14（RF_ANT）It is connected with radio-frequency antenna by resistance R3, realize data acquisition function.
Described clock circuit 4 is by the internal real-time timepiece chip R8025T with temperature compensation function and peripheral circuit group
Become.During energising, the power supply of clock circuit is provided by power supply 1；During power failure, the power supply of clock circuit is provided by reserve battery.Clock
The clock chip R8025T of circuit passes through IThe microprocessor of C bus and control circuit connects, and microprocessor passes through IC bus
Read clock chip and obtain clock data, when clock continues to away during power failure.
Described storage circuit 5 is by 1 FRAM storage chip FM24CL64, a FLASH storage chip
MX25L25735FMI-10G and peripheral circuit composition, the FRAM storage chip of storage circuit passes through IC bus and control circuit
Microprocessor connects, and FLASH storage chip is connected with the microprocessor of control circuit by multiple I/O mouths, the intelligence of storage collection
The supplemental characteristic of energy type electric energy meter, current data and historical data, after power-off, data is not lost.
Described LED indicating circuit 6 is made up of 3 road monochromatic LEDs and 3 tunnel dual-colored LED circuit, and the LED of LED indicating circuit divides
Do not driven by 6 GPIO mouths of control circuit microprocessor, indicate the working condition of current harvester, realize running status and refer to
Show, alert instruction, up telecommunication state instruction, descending local communication state instruction, remote channel indicate and remotely online
Channel signal intensity indicates.
The first described protection circuit 71 include 1 independent varistor, 1 independent chromatic circle resistance, 1 independent
PTC thermistor：First protection circuit 71 input connects input L, N of power supply, then one varistor of first parallel connection
（MOV）RV1, then PTC thermistor VR is connected by chromatic circle resistance RF, device VR by temperature-sensitive and pressure-sensitive be encapsulated in
In one device.Its resistance of MOV increases with voltage and reduces, and forms the diverter of a low-resistance, this intermittent fever in over-pressed moment MOV
The quick resistance resistance that is rapidly heated because of excessively stream becomes and ultimately forms greatly open circuit, and protection transformator both end voltage will not go up further
Rise, protect subsequent conditioning circuit, be struck by lightning in system, protection system is not destroyed in the case of superpressure.
The second described protection circuit 72 includes 1 independent switch control chip：Switch control chip U1 selects
VIPER22A, connects primary coil and the secondary coil of high frequency transformer；Switch control chip U1 controls transformer
Be turned on and off, its frequency being turned on and off and conducting dutycycle are controlled by the feedback circuit of the secondary of transformator, when negative
When carrying higher, secondary output voltage falls, and switch control chip passes through frequency and the conducting dutycycle being turned on and off, output electricity
Pressure improves, and after voltage brings up to target voltage and stablizes, switch control chip reduces the frequency being turned on and off and conducting duty
Ratio reaches voltage stabilizing and puies forward efficient purpose.It is subject under forceful electric power attack not resulting in the collapse of overall power supply it is ensured that gathering in system
The main power circuit of device and the normal work of component.
The 3rd described protection circuit 73 includes 1 independent adjustable output linearity manostat：Adjustable output linearity voltage stabilizing
Device U24 adopts MIC power supply chip 29302WU, its first foot（EN）For enabling control signal and microprocessor MB9BF218S's
Pin 6 connects, and its 2nd foot is power input, provides power supply by power supply 1, and its 3rd foot is earth terminal, and its 4th foot is that power supply is defeated
Go out end, its 5th foot is feedback input end.MIC power supply chip 29302WU is the voltage regulator of high precision, provides low voltage difference
Voltage and fast transient response, have the effect of overvoltage protection and reverse-current protection, prevent positive and passive voltage transient,
There is provided reliable working power it is ensured that the normal work of GPRS telecommunication circuit.
The 4th described protection circuit 74 includes 2 independent anti-thunder tubes, 2 independent TVS pipe and 4 independent temperature-sensitives
Resistance：2 road RS485 telecommunication circuits all individually connect the 4th protection circuit 74, and described 4th protection circuit 74 outfan connects
The outfan of RS485 telecommunication circuit, input connectivity port A1, B1, A2, B2.When the signal input part of RS485 telecommunication circuit misses
Connect forceful electric power or be struck by lightning, A, B terminal voltage moment of RS485 telecommunication circuit raises, the anti-thunder tube in the 4th protection circuit 74
DV1, DV2 efficiently absorb and remove the high voltage surge clutter producing in circuit, thunder and lightning interference and electrostatic, critesistor
RVT1, RVT2, RVT3, RVT4 disconnect, and the action of TVS diode D11, D13 in permission operating voltage range, is protected voltage clamp
Shield RS485 communication line is not damaged in thunderbolt and forceful electric power misconnection.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
The equivalent structure transformation made using this utility model description and accompanying drawing content, or directly or indirectly it is used in other correlations
Technical field, is all included in the same manner in scope of patent protection of the present utility model.
The present embodiment is not described partly same as the prior art.
Claims (8)
1. a kind of intelligent power table wireless information collection device it is characterised in that：Including power circuit, control circuit, communication electricity
Road, clock circuit, storage circuit, LED indicating circuit and protection circuit,
Described telecommunication circuit includes RS485 telecommunication circuit, infrared communication circuit, remote signalling circuit and GPRS telecommunication circuit；
Described power circuit exports the separate power supply in three tunnels：It is respectively the first power supply, second source and the 3rd power supply, the
One power supply provides to control circuit, clock circuit storage circuit, LED indicating circuit, infrared communication circuit and GPRS telecommunication circuit
Power supply, second source provides power supply to RS485 telecommunication circuit and remote signalling circuit, and the 3rd power supply provides electricity to the second protection circuit
Source, during normal work, clock circuit, by the first power source, provides power supply by reserve battery during power failure；
Described protection circuit includes the first protection circuit, the second protection circuit, the 3rd protection circuit and the 4th protection circuit, institute
State the input located at power circuit for first protection circuit, described second protection circuit located at the outfan of the 3rd power circuit,
Described 3rd protection circuit communicates electric located at the power input of GPRS telecommunication circuit, described 4th protection circuit located at RS485
The outfan on road；
Described control circuit controls telecommunication circuit, storage circuit and LED indicating circuit respectively, and clock circuit carries to control circuit
For clock data.
2. intelligent power table wireless information collection device according to claim 1 it is characterised in that：The first described protection
Circuit includes varistor, chromatic circle resistance and PTC thermistor.
3. intelligent power table wireless information collection device according to claim 1 it is characterised in that：The second described protection
Circuit includes 1 independent switch control chip.
4. intelligent power table wireless information collection device according to claim 1 it is characterised in that：The 3rd described protection
Circuit includes 1 independent adjustable output linearity manostat.
5. intelligent power table wireless information collection device according to claim 1 it is characterised in that：The 4th described protection
Circuit includes anti-thunder tube, TVS pipe and critesistor.
6. the intelligent power table wireless information collection device according to claim 2-5 any one it is characterised in that：Described
RS485 telecommunication circuit be made up of 485 chips and peripheral circuit, the input of every road RS485 telecommunication circuit, outfan pass through photoelectricity
The RS485 communication input of bonder and control circuit, outfan connect, and complete data communication and transmitting-receiving controls.
7. intelligent power table wireless information collection device according to claim 6 it is characterised in that：Described infrared communication
Circuit is made up of infrared receiving circuit, infrared transmitting circuit and 38KHZ modulation circuit, the input of infrared communication circuit, outfan
Infrared communication input with control circuit, outfan connect, and complete data communication and carrier modulation demodulation.
8. intelligent power table wireless information collection device according to claim 7 it is characterised in that：Described power circuit is
System provides power supply, including high frequency transformer, rectification circuit, switch control chip, mu balanced circuit, filter circuit and standby electricity
Pond, described high frequency transformer includes primary coil and secondary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620970169.4U CN205983827U (en) | 2016-08-29 | 2016-08-29 | Wireless information acquisition device of intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620970169.4U CN205983827U (en) | 2016-08-29 | 2016-08-29 | Wireless information acquisition device of intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205983827U true CN205983827U (en) | 2017-02-22 |
Family
ID=58037185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620970169.4U Expired - Fee Related CN205983827U (en) | 2016-08-29 | 2016-08-29 | Wireless information acquisition device of intelligent electric energy meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN205983827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417002A (en) * | 2018-04-09 | 2018-08-17 | 南通德高环境监测技术有限公司 | A kind of high-performance MBUS collectors for water meter |
| CN108490818A (en) * | 2018-01-19 | 2018-09-04 | 黄宏伟 | A kind of lightning stroke observation circuit, system and method |
-
2016
- 2016-08-29 CN CN201620970169.4U patent/CN205983827U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490818A (en) * | 2018-01-19 | 2018-09-04 | 黄宏伟 | A kind of lightning stroke observation circuit, system and method |
| CN108490818B (en) * | 2018-01-19 | 2023-09-29 | 黄宏伟 | Lightning stroke monitoring circuit, system and method |
| CN108417002A (en) * | 2018-04-09 | 2018-08-17 | 南通德高环境监测技术有限公司 | A kind of high-performance MBUS collectors for water meter |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |