CN201878135U - Third-generation (3G) communication module for electric energy acquisition terminal - Google Patents
Third-generation (3G) communication module for electric energy acquisition terminal Download PDFInfo
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- CN201878135U CN201878135U CN2010206688008U CN201020668800U CN201878135U CN 201878135 U CN201878135 U CN 201878135U CN 2010206688008 U CN2010206688008 U CN 2010206688008U CN 201020668800 U CN201020668800 U CN 201020668800U CN 201878135 U CN201878135 U CN 201878135U
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Abstract
The utility model discloses a third-generation (3G) communication module for an electric energy acquisition terminal, which comprises a power management circuit, a control circuit, a level converting and isolating circuit, a 3G radio frequency chip, a subscriber identity module (SIM) card interface circuit in which an SIM card is inserted, and a communication interface for connecting the electric energy acquisition terminal, wherein the power management circuit supplies a working power supply to the 3G communication module, and the 3G radio frequency chip receives data of the electric energy acquisition terminal and sends the data to a master station system through a 3G network; and a system power supply in the 3G communication module and the initialization of the initial power-up stage of the 3G radio frequency chip are controlled by the control circuit, and the level converting and isolating circuit carries out the level conversion for signals between the communication interface and the 3G radio frequency chip and isolates a power supply system between the communication interface and the 3G radio frequency chip. In the utility model, the data is transmitted to the master station system by the 3G communication technology in the electric energy acquisition terminal, so that the upload rate of the data is greatly improved, and thus the real-time monitoring and management of electric sites can be realized.
Description
Technical field
The utility model relates to a kind of 3G communication module that is used for the generated energy acquisition terminal.
Background technology
The representative feature of the 3G communication technology is that data service at a high speed can be provided, this technology is widely used at home, development along with the generated energy acquisition terminal technology, its uploading rate to image data has also had higher requirement, for example real-time video monitoring etc. is carried out at the electricity consumption scene, its bandwidth and speed to uploading channel all requires very high, therefore, the application of the 3G communication technology on the generated energy acquisition terminal more and more is subjected to people's attention, to realize real-time monitoring and the management to the electricity consumption scene.
The utility model content
The purpose of this utility model is to provide a kind of energy to realize the 3G communication module that is used for the generated energy acquisition terminal that the electricity consumption scene is monitored in real time and managed.
This 3G communication module that is used for the generated energy acquisition terminal that the utility model provides, comprise electric power management circuit, control circuit, level conversion and buffer circuit, the 3G radio frequency chip, be used to insert the SIM card interface circuit of SIM card, be used for the communication interface that is connected with the generated energy acquisition terminal, described electric power management circuit provides working power for described 3G communication module, described 3G radio frequency chip receives the data of generated energy acquisition terminal and data is sent to main station system through 3G network, described control circuit is controlled the power on initialization at initial stage of system power supply in the described 3G communication module and 3G radio frequency chip, and described level conversion and buffer circuit carry out level conversion to the signal between described communication interface and the 3G radio frequency chip and isolate power-supply system between it.
Described electric power management circuit contains one the tunnel for described 3G radio frequency chip provides the auxiliary power circuit of electric energy supply, and described auxiliary power circuit adopts chargeable Ni-MH battery or ultracapacitor.Described 3G radio frequency chip adopts the TD-SCDMA module LC6311 of Lianxin Science Co., Ltd.Described main power circuit adopts the low pressure difference linear voltage regulator MIC37302WU of MICREL company.
The utility model has improved the uploading rate of data greatly, thereby can realize real-time monitoring and management to the electricity consumption scene owing to adopt the 3G communication technology to transmit its data to main station system on the generated energy acquisition terminal.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is electric power management circuit figure of the present utility model.
Fig. 3 is 3G radio frequency chip of the present utility model and peripheral circuit diagram.
Embodiment
Fig. 1 is a theory diagram of the present utility model, comprise electric power management circuit, control circuit, level conversion and buffer circuit, 3G radio frequency chip, be used to insert SIM card the SIM card interface circuit, be used for the communication interface that is connected with the generated energy acquisition terminal, electric power management circuit provides working power for the 3G communication module, the 3G radio frequency chip receives the data of generated energy acquisition terminal and data is sent to main station system through 3G network, and the control circuit among the figure is used to control the power on initialization at initial stage of system power supply in the 3G communication module and 3G radio frequency chip.
Level conversion and buffer circuit carry out level conversion to the signal between communication interface and the 3G radio frequency chip and isolate power-supply system between it, prevent that the power supply at two ends from influencing each other.The generated energy acquisition terminal is sent control signal control the utility model and is powered on, this moment, electric power management circuit was started working, light power supply indicator simultaneously, electric power management circuit provides working power (be included as the power supply of 3G radio frequency chip and level conversion power supply etc. is provided) for the utility model, wherein the 3G radio frequency chip to the requirement of power supply than higher, when emitting radio frequency signal, the peak current maximum can reach 2A, general Switching Power Supply is difficult to provide so big load capacity in the generated energy acquisition terminal, so need an auxiliary power circuit that the electric energy supply is provided, auxiliary power circuit is an energy storage units, adopt chargeable Ni-MH battery or ultracapacitor, when load current is increased to main power circuit and can't bears, auxiliary power circuit provides necessary electric energy supply, auxiliary power circuit is devoted oneself to work during the initialization after the 3G radio frequency chip powers on usually, because need mutual information many during this period of time, emitted power is bigger, power on after the success, the generated energy acquisition terminal sends pulse signal starting 3G radio frequency chip, the 3G radio frequency chip is started working, the search for networks signal also passes through the communication interface inverse signal and gives the generated energy acquisition terminal, the generated energy acquisition terminal also is by this communication interface the 3G radio frequency chip to be carried out parameter query and initial configuration, 3G radio frequency chip reading SIM card internal information, carry out information interaction with the base station, after authentication, just can log on 3G network.
Fig. 2 is electric power management circuit figure of the present utility model, electric power management circuit comprises main power circuit, auxiliary power circuit and communication interface conversion electric power, wherein main power circuit adopts the low pressure difference linear voltage regulator MIC37302WU of MICREL company, i.e. D1 among the figure, since the 3G radio frequency chip to the requirement of power supply than higher, when carrying out the data transmission, its demand to electric current is bigger, average current reaches more than 200 milliampere, the peak current maximum can reach 2 amperes, and ripple should be greater than 300 millivolts, and low pressure difference linear voltage regulator D1 can satisfy this demand, its rated operational current is 3A, maximum pressure drop is 300 millivolts (normal temperature), can reduce the power consumption when transmitting, and low pressure difference linear voltage regulator D1 has an enable pin, high level is effective, by its power-on and power-off of generated energy acquisition terminal control.V1 is a protection device among the figure; prevent the voltage jump of communication interface; inductance L 1 is connected on the input supply terminal of linear voltage regulator D1 to prevent that main power circuit drops suddenly under the big current conditions; capacitor C 2; C3; C4; C5 causes the electric voltage dropping of main power circuit when preventing big electric current for main power circuit provides necessary electric energy supply; above-mentioned electric capacity is also as filter capacitor simultaneously; when doing the printed board design; above-mentioned electric capacity is as far as possible near the 3G radio frequency chip; resistance R 5; R7 is used to regulate the output voltage of low pressure difference linear voltage regulator D1, and its output voltage V out is 1.24 * (1+R5/R7)=3.968V.R1 is a discharge resistance, when the utility model is carried out power-off restoration, if R1, electric weight on C2, C3, C4, the C5 does not discharge the loop, when starting the power supply signal arrival, main power circuit also will maintain operating voltage, thereby cause the failure of power-off restoration next time.The level that needs when power supply chip D4 and power supply chip D5 provide power supply and level conversion for the level transferring chip D3 among Fig. 3.D4 is the TPS73028 of TI company, and output voltage is 2.8V, and this voltage provides switching levels for 3G radio frequency chip end, and D5 is the XC6203 of TOREX company, and output voltage is 3.3V, and this voltage provides switching levels for the interface end of generated energy acquisition terminal.The input of D4 is connected with the output of low pressure difference linear voltage regulator D1, and therefore when not giving the power supply of 3G radio frequency chip, D4 just can not work, even the rs 232 serial interface signal of generated energy acquisition terminal is a high level at this moment, can't have influence on 3G radio frequency chip end yet.
Auxiliary power circuit mainly is made up of two farad capacitors of C12, C18, generally farad capacitor is withstand voltage not high, the mode of two capacitances in series of employing improves the voltage endurance capability of accumulator, simultaneously in order to guarantee to share the voltage unanimity to 2 electric capacity, adopts 2 big resistance R 28, R29 to come dividing potential drop.V7 is a power-type metal-oxide-semiconductor, is used for switching the auxiliary power circuit power supply, when the V7 grid is low level, and conducting between its source electrode and the drain electrode, auxiliary power circuit begins power supply.R16, R20, C12, C18 form the RC charging circuit, do not control before the utility model powers in the generated energy acquisition terminal, the base stage of triode V6 is a low level, and V6 is operated in cut-off state, and the grid of metal-oxide-semiconductor V7 is a high level, V7 is operated in cut-off state, this moment, the generated energy acquisition terminal was charged to C12, C18 in the auxiliary power circuit, charge constant τ=RC=47/2*2=47s, and charging reaches stable state needs 3 τ, be 141s, be about 2.4 minutes.Therefore needing to begin start-up control the utility model behind the 30s in 2 minutes after the generated energy acquisition terminal powers at least powers on.After generated energy acquisition terminal control the utility model powers on, the drain electrode of metal-oxide-semiconductor V7 and source electrode conducting, auxiliary power circuit provides energy with the input power supply for low pressure difference linear voltage regulator D1.
Fig. 3 is 3G radio frequency chip of the present utility model and peripheral circuit diagram, as shown in the figure, D2 is the 3G radio frequency chip, and it adopts the TD-SCDMA module LC6311 of Lianxin Science Co., Ltd, and it provides UART and two kinds of communication interfaces of USB and outside to communicate, can be configured by R21 or R23, during welding R21,3G radio frequency chip LC6311W uses USB to communicate, during welding R23,3G radio frequency chip LC6311 uses UART to communicate, and the utility model uses UART to communicate.
After powering on for 3G radio frequency chip D2, also must send an enabling signal and just can make its operate as normal, this enabling signal is the high level pulse signal of a 2s sending of generated energy acquisition terminal, this signal sends to 3G radio frequency chip D2 after triode V3 level conversion, because V3 has carried out oppositely, starts this 3G radio frequency chip D2 so the generated energy acquisition terminal is sent the low level pulse signal of a 2s.3G radio frequency chip D2 has hard reset interface (the above low level of 195ms is effective), when the utility model is in unforeseen fault, can attempt restarting the utility model by mode to 3G radio frequency chip D2 hard reset, when normally starting the utility model, its reset signal should keep high level.Level conversion and the buffer circuit SN74AVC4T245PWT by TI company realizes, i.e. D3 among the figure, D3 possesses input of 2 road power supplys and the output of 3 attitude doors, can transmit 4 bit digital signal, and the enable pin of D3 is by the signal controlling of control 3G radio frequency chip D2 power supply.After the utility model powers on, D3 starts working, D3 cooperates the power supply chip D4 among Fig. 2, the isolation that D5 finishes signal, the output of power supply chip D4 is controlled by the power supply of 3G radio frequency chip, when not giving the power supply of 3G radio frequency chip, even be connected at the utility model on the communication interface of generated energy acquisition terminal electric current is arranged, because power supply chip D4 does not work, the signal of the link of D3 and 3G radio frequency chip is a high-impedance state, does not pour into the 3G radio frequency chip thereby do not have electric current.
XS1 among Fig. 3 is the SIM card interface circuit, and it is used to the user profile in the 3G radio frequency chip reading SIM card that a hardware interface is provided.Suitable resistance and electric capacity can oscillation-damped and filtering coupling radio frequency interference on the line.
Claims (4)
1. 3G communication module that is used for the generated energy acquisition terminal, it is characterized in that this 3G communication module comprises electric power management circuit, control circuit, level conversion and buffer circuit, the 3G radio frequency chip, be used to insert the SIM card interface circuit of SIM card, be used for the communication interface that is connected with the generated energy acquisition terminal, described electric power management circuit provides working power for described 3G communication module, described 3G radio frequency chip receives the data of generated energy acquisition terminal and data is sent to main station system through 3G network, described control circuit is controlled the power on initialization at initial stage of system power supply in the described 3G communication module and 3G radio frequency chip, and described level conversion and buffer circuit carry out level conversion to the signal between described communication interface and the 3G radio frequency chip and isolate power-supply system between it.
2. the 3G communication module that is used for the generated energy acquisition terminal according to claim 1, it is characterized in that described electric power management circuit contains one the tunnel for described 3G radio frequency chip provides the auxiliary power circuit of electric energy supply, described auxiliary power circuit adopts chargeable Ni-MH battery or ultracapacitor.
3. the 3G communication module that is used for the generated energy acquisition terminal according to claim 1 is characterized in that described 3G radio frequency chip adopts the TD-SCDMA module LC6311 of Lianxin Science Co., Ltd.
4. the 3G communication module that is used for the generated energy acquisition terminal according to claim 1 is characterized in that described main power circuit adopts the low pressure difference linear voltage regulator MIC37302WU of MICREL company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206688008U CN201878135U (en) | 2010-12-20 | 2010-12-20 | Third-generation (3G) communication module for electric energy acquisition terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206688008U CN201878135U (en) | 2010-12-20 | 2010-12-20 | Third-generation (3G) communication module for electric energy acquisition terminal |
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| Publication Number | Publication Date |
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| CN201878135U true CN201878135U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206688008U Expired - Lifetime CN201878135U (en) | 2010-12-20 | 2010-12-20 | Third-generation (3G) communication module for electric energy acquisition terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437641A (en) * | 2011-09-20 | 2012-05-02 | 淮阴工学院 | 3G-based remote power quality monitoring method |
| CN103178619A (en) * | 2013-04-18 | 2013-06-26 | 珠海万力达电气股份有限公司 | APF (accurate position finder), SVG (static var generator) control device for realizing 3G (the third generation telecommunication) monitoring |
| CN104242639A (en) * | 2013-06-14 | 2014-12-24 | 罗姆股份有限公司 | Power delivery device and control method of the same |
| WO2016015169A1 (en) * | 2014-07-31 | 2016-02-04 | Cam Chile S.A. | Multi-purpose 3g communication interface |
-
2010
- 2010-12-20 CN CN2010206688008U patent/CN201878135U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437641A (en) * | 2011-09-20 | 2012-05-02 | 淮阴工学院 | 3G-based remote power quality monitoring method |
| CN103178619A (en) * | 2013-04-18 | 2013-06-26 | 珠海万力达电气股份有限公司 | APF (accurate position finder), SVG (static var generator) control device for realizing 3G (the third generation telecommunication) monitoring |
| CN103178619B (en) * | 2013-04-18 | 2015-02-04 | 珠海万力达电气自动化有限公司 | APF (accurate position finder), SVG (static var generator) control device for realizing 3G (the third generation telecommunication) monitoring |
| CN104242639A (en) * | 2013-06-14 | 2014-12-24 | 罗姆股份有限公司 | Power delivery device and control method of the same |
| WO2016015169A1 (en) * | 2014-07-31 | 2016-02-04 | Cam Chile S.A. | Multi-purpose 3g communication interface |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 410205 No. 468 Tongzipo West Road, Changsha High-tech Industrial Development Zone, Yuelu District, Changsha City, Hunan Province Patentee after: WILLFAR INFORMATION TECHNOLOGY Co.,Ltd. Address before: 410205 No. 468 Tongzipo West Road, Changsha High-tech Industrial Development Zone, Yuelu District, Changsha City, Hunan Province Patentee before: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address after: 410205 No. 468 Tongzipo West Road, Changsha High-tech Industrial Development Zone, Yuelu District, Changsha City, Hunan Province Patentee after: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address before: 410205 No. 468 Tongzipo West Road, Changsha High-tech Industrial Development Zone, Yuelu District, Changsha City, Hunan Province Patentee before: CHANGSHA WASION INFORMATION TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |