CN205566663U - A 4G communication module for power consumption information acquisition terminal - Google Patents
A 4G communication module for power consumption information acquisition terminal Download PDFInfo
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- CN205566663U CN205566663U CN201620043156.2U CN201620043156U CN205566663U CN 205566663 U CN205566663 U CN 205566663U CN 201620043156 U CN201620043156 U CN 201620043156U CN 205566663 U CN205566663 U CN 205566663U
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- 238000004891 communication Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 4
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a 4G communication module at power consumption information acquisition terminal, this 4G communication module includes power management circuit (3), a control circuit (4), level conversion and buffer circuit (2), 4GLTE chip (1), SIM card interface circuit (8), USB debugging / upgrading interface (7), antenna (6), a communication interface (5) that is used for being connected with power consumption information acquisition terminal CPU, power management circuit (3) provides working power supply for 4G communication module, 4GLTE chip (1) is received the data at power consumption information acquisition terminal and is sent the system of main website with data through the 4G network, control circuit (4) control 4G LTE chips (1) are gone up, level conversion and buffer circuit (2) signal between to communication interface (5) and 4G LTE chip (1) carries out level conversion and galvanic isolation. The utility model discloses owing to adopt 4G communication technology transmitting data to system of main website on power consumption information acquisition terminal, compare 3G and 2G module have improved the speed of uploading of data greatly to can realize on -the -spot real time monitoring and the management of power consumption.
Description
Technical field:
The utility model relates to a kind of 4G communication module, particularly relates to a kind of 4G for power information acquisition terminal and communicates
Module.
Background technology:
Present domestic power information terminal and main website telecommunication use GPRS 2G communication module mostly.4G network conduct
Latest generation mechanics of communication, has the biggest lifting in transmission speed.This technology moving communicating field at home is by extensively
General application, along with the development of power information acquisition terminal technology, bandwidth and the speed of uploading channel are desirable that the highest by it, because of
This, the application on power information acquisition terminal of the 4G communication technology is increasingly paid close attention to by people.
Now widely used GPRS module is suspended in mobile operator 2G base station or is upgraded to the macrocyclic of 4G base station
Border will certainly affect its communication quality lower future, more cannot effectively meet following intelligent grid communication network and develop to electric power Internet of Things
Big data communication needs.
Utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides a kind of data that substantially increase
Uploading rate, can realize monitoring electricity consumption scene in real time the mould that communicates with the 4G for power information acquisition terminal managed
Block.
The purpose of this utility model can be reached by following measure: a kind of 4G for power information acquisition terminal leads to
Letter module, it is characterised in that it includes receiving the data of power information acquisition terminal and through 4G network, data being sent to system of main website
System 4G LTE chip, carry out for the signal between CPU communication interface and 4G LTE chip level conversion level conversion and
Isolation circuit, for 4G communication module provide working power electric power management circuit, control 4G LTE chip power on control circuit,
For the CPU communication interface being connected with power information acquisition terminal CPU, SM card interface circuit, USB debugging/upgrade interface, sky
Line, 4G LTE chip connect respectively level conversion and isolation circuit, electric power management circuit, control circuit, SM card interface circuit,
USB debugging/upgrade interface, antenna, level conversion and isolation circuit, electric power management circuit, control circuit all with CPU communication interface
It is connected.
In order to realize the purpose of this utility model further, described 4G LTE chip uses five moulds 13 of SIMCOM company
Frequently LTE module SIM7100C.
In order to realize the purpose of this utility model further, described electric power management circuit includes main power circuit and is 4G
LTE chip provides the auxiliary power circuit of electric energy supply, and described auxiliary power circuit includes chargeable Ni-MH battery group or super
Level capacitor, main power circuit includes the low voltage difference LDO chip MIC29302WU of MICREL company.
The utility model can produce following good effect compared with the prior art: the utility model 4G module uses SIMCOM
Five moulds 13 frequency LTE chip SIM7100C of company, support multiple communication standard: GSM, TD-SCDMA/WCDMA, TDD-LTE/
FDD-LTE.Can compatible 2G, 3G and 4G network, meet and gather around with master station communication, the 2G module that compares under on-the-spot different frequency range simultaneously
There is faster traffic rate.The utility model arrives owing to using the 4G communication technology to transmit its data on power information acquisition terminal
Main station system, substantially increases the uploading rate of data, it is thus possible to realize the in real time monitoring on-the-spot to electricity consumption and management.
Accompanying drawing illustrates:
Fig. 1 is theory diagram of the present utility model；
Fig. 2 is 4G LTE chip of the present utility model and level conversion and the circuit diagram of isolation circuit；
Fig. 3 is the circuit diagram of the main power circuit of electric power management circuit of the present utility model；
Fig. 4 is the circuit diagram of the auxiliary power circuit of electric power management circuit of the present utility model.
Detailed description of the invention: preferred forms of the present utility model below in conjunction with the accompanying drawings elaborates:
Embodiment: a kind of 4G communication module (seeing Fig. 1) for power information acquisition terminal, it includes 4G LTE chip
1, level conversion and isolation circuit 2, electric power management circuit 3, control circuit 4, for being connected with power information acquisition terminal CPU
CPU communication interface 5, SM card interface circuit 8, USB debugging/upgrade interface 7, antenna 6,4G LTE chip 1 connects level respectively and turns
Change and isolate circuit 2, electric power management circuit 3, control circuit 4, SM card interface circuit 8, USB debugging/upgrade interface 7, antenna 6,
Level conversion and isolation circuit 2, electric power management circuit 3, control circuit 4 are all connected with CPU communication interface 5.Electric power management circuit 3
Thering is provided working power for 4G communication module, 4G LTE chip 1 receives the data of power information acquisition terminal and by data through 4G net
Network is sent to main station system, and control circuit 4 powers on for the 4G LTE chip controlled in 4G communication module.
Fig. 2 is 4G LTE chip of the present utility model and level conversion and isolation circuit diagram, as it can be seen, D4 is 4G LTE
Chip, its use SIMCOM company five moulds 13 frequency LTE module SIM7100C, SIM7100C provide UART with USB two kinds communicate
Interface communicates with terminal CPU.The utility model 4G LTE chip SIM7100C uses UART to communicate, and uses USB port
For chip software upgrading or on-site maintenance.
Level shifting circuit carries out level conversion to the signal between CPU communication interface and 4G LTE chip.This practicality is new
It is real that the start of type and reset level fit through series-opposing low pressure germanium diode V9 and V5 between LTE chip and terminal CPU
Existing.This reverse germanium diode completes the function being galvanically isolated with electrical level match simultaneously.ON/OFF and RESET pin is
1.8V interface level, docking 3.3V level have to add electrical level matching circuit.After powering on to 4G LTE chip D4, CPU needs
Sending a starting-up signal just can make it normally work, and this starting-up signal is the low of a 1s sending of power information acquisition terminal
Level pulse signal, this signal is sent to 4G LTE chip D4,4G LTE chip D4 band after a low pressure germanium diode V9
There is hard reset interface (more than 100ms Low level effective), when the utility model is in unforeseen fault, can attempt passing through
Turning back on the mode of 4G LTE chip D4 hard reset, when normal startup the utility model, its reset signal should keep
High level；
4G LTE chip pin is 1.8V interface level, and docking 3.3V level have to add electrical level matching circuit.This
Utility model transmission circuit realizes electrical level match and signal by triode change-over circuit isolates, i.e. the sending out of LTE chip D4 in figure
Sending pin to be connected with the emitter stage of triode V17, the base stage of V17 is pulled upward to the colelctor electrode of VDD_1V8, V17 and connecing of terminal CPU
Collection of letters 9260_RXD is connected, and is pulled upward to VCC3V3 by R34 simultaneously, and this pull-up resistor determines CPU and receives pin in the free time
Time level；When D4 transmission signal M_TXD is 1.8V high level, V17 ends, and the reception signal of terminal CPU is 3.3V height electricity
Flat；When D4 transmission signal M_TXD is low level, triode V17 turns on, and 9260_RXD becomes low level the most therewith.V17 turns on
Pressure drop is less than 0.2V, meets LTE chip to low level requirement., the emitter stage of V3 and the transmission signal 9260_ of terminal CPU
TXD is connected, and the base stage of V3 is pulled upward to the colelctor electrode phase receiving pin and triode V3 of VDD_1V8, LTE chip D4 by R8
Even, being pulled upward to VDD_1V8 by R23, this pull-up resistor determines D4 and receives pin level at one's leisure simultaneously；When CPU sends out
When the number of delivering letters 9260_TXD is 3.3V high level, V3 ends, and the reception signal of D4 is 1.8V high level；When CPU sends signal
When 9260_TXD is low level, triode V3 turns on, and M_RXD becomes low level the most therewith.The utility model triode level turns
Change circuit and achieve the Signal Matching of two kinds of high level of 1.8V and 3.3V the most cleverly, it also avoid D4 when being not keyed up simultaneously,
Cpu signal pours in down a chimney impact to LTE chip D4's.When not giving 4G LTE chip power supply, even if connecting at the utility model
Electric current is had, owing to the internal 1.8V of LTE chip D4 is without output, CPU and 4G in the communication interface of power information acquisition terminal
Triode between LTE chip is high-impedance state, from without there being electric current to pour into 4G LTE chip.
Electric power management circuit includes main power circuit and auxiliary power circuit.
Fig. 3 is the circuit diagram of the main power circuit of electric power management circuit, as it can be seen, main power circuit includes that MICREL is public
Low pressure difference linearity LDO MIC29302WU, the i.e. D2 in figure of department, owing to 4G LTE chip is higher to the requirement of power supply, is entering
When row data send, it is bigger to the demand of electric current, and average current reaches 1 peace, and peak point current is maximum up to 2 amperes, and ripple is not
Should be greater than 400 millivolts, and low pressure difference linearity LDO D2 can meet this demand, its rated operational current is 3A, and maximum pressure drop is
300 millivolts (normal temperature), can reduce the power consumption when launching signal, and low pressure difference linearity LDO D2 enables pin, high electricity with one
Flat effective, power information acquisition terminal control its power-on and power-off.In figure, V11 is that 5V TVS protects device, prevents communication interface
Voltage jump, electric capacity C12, C17, C19 are that main power circuit causes when providing necessary electric energy supply to have prevented big electric current
The Voltage Drop of main power circuit, C13, C14, C20 and C21 ceramic disc capacitor mainly as decoupling filter capacitor, is doing PCB design
Time, above-mentioned electric capacity is near 4G LTE chip power pin, and resistance R11, R12 are for regulating the defeated of low pressure difference linear voltage regulator D2
Go out voltage, its output voltage Vout=1. 24X (1+R11/R12)=3. 968V.R27 is fictitious load, when new to this practicality
When type carries out power-off restoration, if the electricity on storage capacitor does not has Releasing loop, upper once start power supply signal arrive time,
Main power circuit also will be maintained at operating voltage, easily causes the failure of power-off restoration；Additionally the existence of this resistance can also be real
The quick regulation of existing LDO, greatly reduces power supply ripple.The digital I/O mouth signal power source of 4G chip SIM7100C is 1.8V, by
Power supply output in sheet, this voltage provides switching levels for 4G LTE die terminals.Power not giving 4G LTE chip 4V VMDM
Time, in sheet, power supply would not work, even if now the rs 232 serial interface signal of power information acquisition terminal is high level, also cannot have influence on
4G LTE die terminals.
Fig. 4 is the circuit diagram of the auxiliary power circuit of electric power management circuit of the present utility model, as it can be seen, this practicality is new
Ni-MH battery is inputted by type as auxiliary power circuit.D6 is a power-type PM0S pipe, is used for switching auxiliary power circuit and supplies
Electricity.When AC dump, start auxiliary power circuit and start power supply.Auxiliary power circuit control signal BAT_EN is by base stage electricity
Resistance R31 is connected with triode V40 base stage, is reliably dragged down by pull down resistor R29, Ni-MH battery power supply VBAT_N and PMOS simultaneously
Pipe D6 source electrode connects, and is connected by R24 with V40 colelctor electrode simultaneously.V40 colelctor electrode is connected with D6 grid, D6 drain electrode and diode
V16 positive pole is connected, and V16 negative pole inputs with the LDO D2 of main power circuit and is connected.Three poles when the output of control signal BAT_EN is high
Pipe V40 conducting drives PMOS D6 to open, and battery is powered to LDO via diode V16, supports power information terminal and completes to stop
Electricity and the active reporting of other critical events.
Above are only portion of techniques scheme case of the present utility model, be not used for limiting scope of the present utility model, i.e.
All equivalent variations made according to claim of the present utility model and modification, the protection being in technical solutions of the utility model
Scope.
Claims (3)
1. the 4G communication module for power information acquisition terminal, it is characterised in that it includes that receiving power information gathers eventually
End data and data are sent to 4G LTE chip (1) of main station system through 4G network, for CPU communication interface (5) and 4G
Signal between LTE chip (1) carries out the level conversion of level conversion and isolation circuit (2), for 4G communication module offer work
The electric power management circuit (3) of power supply, control control circuit (4) that 4G LTE chip (1) powers on, for gathering eventually with power information
The CPU communication interface (5) of end CPU connection, SM card interface circuit (8), USB debugging/upgrade interface (7), antenna (6), 4G LTE
Chip (1) connects level conversion and isolation circuit (2), electric power management circuit (3), control circuit (4), SM card interface circuit respectively
(8), USB debugging/upgrade interface (7), antenna (6), level conversion and isolation circuit (2), electric power management circuit (3), control electricity
Road (4) is all connected with CPU communication interface (5).
A kind of 4G communication module for power information acquisition terminal the most according to claim 1, it is characterised in that described
4G LTE chip (1) use SIMCOM company five moulds 13 frequency LTE module SIM7100C.
A kind of 4G communication module for power information acquisition terminal the most according to claim 1, it is characterised in that described
Electric power management circuit (3) includes main power circuit and provides the auxiliary power circuit of electric energy supply for 4G LTE chip (1), described
Auxiliary power circuit includes chargeable Ni-MH battery group or ultracapacitor, and main power circuit includes the low pressure of MICREL company
Difference LDO chip MIC29302WU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043156.2U CN205566663U (en) | 2016-01-18 | 2016-01-18 | A 4G communication module for power consumption information acquisition terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043156.2U CN205566663U (en) | 2016-01-18 | 2016-01-18 | A 4G communication module for power consumption information acquisition terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205566663U true CN205566663U (en) | 2016-09-07 |
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ID=56823010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043156.2U Expired - Fee Related CN205566663U (en) | 2016-01-18 | 2016-01-18 | A 4G communication module for power consumption information acquisition terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205566663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064622A (en) * | 2017-05-27 | 2017-08-18 | 湖南威胜信息技术有限公司 | The radio communication harvester and communication acquisition method of three-phase intelligent electric-energy meter |
| CN107610439A (en) * | 2017-09-28 | 2018-01-19 | 南京新联能源技术有限责任公司 | A kind of split type 4G communicators for power information acquisition system |
-
2016
- 2016-01-18 CN CN201620043156.2U patent/CN205566663U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064622A (en) * | 2017-05-27 | 2017-08-18 | 湖南威胜信息技术有限公司 | The radio communication harvester and communication acquisition method of three-phase intelligent electric-energy meter |
| CN107610439A (en) * | 2017-09-28 | 2018-01-19 | 南京新联能源技术有限责任公司 | A kind of split type 4G communicators for power information acquisition system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |