CN102404040B - Power management method of handheld satellite communication device - Google Patents
Power management method of handheld satellite communication device Download PDFInfo
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- CN102404040B CN102404040B CN201010282025.7A CN201010282025A CN102404040B CN 102404040 B CN102404040 B CN 102404040B CN 201010282025 A CN201010282025 A CN 201010282025A CN 102404040 B CN102404040 B CN 102404040B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Provided is a power management method of a handheld satellite communication device. The handheld satellite communication device comprises a center processing unit (CPU), a radio frequency module, a base band channel signal processing module, a business processing/controlling module and an interface displaying module. The CPU is respectively connected with the modules and sends power management control signals to the modules, wherein a radio frequency device of the device adopts an independent power supply relative to a channel. Compared with the prior art, the technical scheme has more remarkable effect on reducing power consumption of a complete machine and prolonging standby time of the device.
Description
One, technical field
The present invention designs and is mainly applicable to that power consumption and stand-by time are had to the individual mobile satellite communication equipment of being strict with, especially a kind of power management method of handheld satellite communication device.
Two, background technology
The application of satellite communication electronic equipment is now more and more extensive, also just more and more higher to the requirement of electronic product accordingly.Individual's mobile satellite communication equipment especially power consumption and the stand-by time of portable equipment is the problem receiving much attention always, by optimizing power management scheme, can effectively reduce Overall Power Consumption and extension device stand-by time.
Three, summary of the invention
In order to solve in prior art, reduce the requirement of Overall Power Consumption and extension device stand-by time, the present invention proposes a kind of power management method of handheld satellite communication device, and this method is the cross-module management realizing under common cooperation at the soft and hardware of equipment.Concrete technical scheme is as follows:
A power management method of handheld satellite communication device, described handheld satellite communication device comprises: CPU, radio-frequency module, baseband channel signal processing module, Business Processing/control module and interface display module; CPU connects respectively modules, it is characterized in that sending power management control signal to modules by CPU; Wherein, the radio-frequency apparatus of this equipment adopts the power supply relatively independent with channel;
1), for radio-frequency module, method for managing power supply is,
1.1) this equipment, when holding state on duty, is closed upconverter sendaisle power supply, and the power supply of paging passage is only provided;
1.2) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 1.1) state;
2), for baseband channel signal processing module, method for managing power supply is,
2.1) when this equipment is during in holding state, close sendaisle power supply in baseband processing module;
2.2) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 2.1) state;
2.3) keep the power supply to single channel receive path;
3), for Business Processing/control module, method for managing power supply is,
3.1) when this equipment is during in holding state, close speech circuit power supply;
3.2) keep crypto to power;
3.3) keep the power supply to CPU, make CPU enter low-power consumption mode simultaneously;
3.4) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 3.1) state;
4), for interface display module, method for managing power supply is,
4.1) when equipment is during in holding state, make display screen enter low-power consumption mode;
4.2), when equipment need to communicate, opening power, switches back 4.1 after sign off) state;
4.3), when user operates, open display screen power supply;
4.4) display screen operates control display switch according to user.
In hardware designs, this programme adopts distributed power management hardware system, for the larger digital circuit of power consumption (as DSP, FPGA etc.), adopts special-purpose power management chip as the hardware platform of power management.Power management chip is the control axis of power supply, realizes output and other behaviors (as: protection, switching) that plurality of voltages output also can be controlled power supply.Control by output, can make the output of power supply meet various functional requirements (as: constant voltage and current limiting).The advantage of power management chip maximum is to realize very easily complicated output and controls, and meets the required function of supplying power demand of chip under various operating states, thereby saves unnecessary power consumption penalty.
In software control, the controlled power management hardware platform of take is upper as basis, and the work characteristics of coupling system in user program, realizes different power management policies.Its design philosophy mainly comprises three basic concepts: management strategy, operating state, operating point.In addition, power-supply management system also comprises a power supply monitoring subsystem.
Compared with prior art, the technical program is more remarkable to reducing Overall Power Consumption and extension device stand-by time.
Four, accompanying drawing explanation
Fig. 1 is this power-supply management system schematic diagram.
CPU in handheld terminal, not only as Service control and administrative center, is also the core of power management.
CPU is by its IO pin, according to current terminal, is in standby mode or service communication pattern is determined the supply power mode to hand-held terminal device all modules, and its schematic diagram is as Fig. 1.
Five, embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
With reference to figure 1, a kind of scheme of power management method of handheld satellite communication device is as follows:
Radio-frequency apparatus adopts the power supply relatively independent with channel, and the power supply of equipment is disturbed and is down to minimum and guarantees the output quality of radiofrequency signal.Provide the detailed design scheme of hardware and software of each module of handheld satellite communication device being carried out to power management below.
1. hardware designs
(1) radio-frequency module power management scheme
equipment is closed upconverter sendaisle power supply when holding state, and the power supply of paging passage is only provided.
when equipment need to communicate, open the power supply of all passages, guarantee that communication completes smoothly, after sign off, power supply control switches back the state of standby on duty.
The power management of radio-frequency module is realized in radio-frequency module, controlled by the control signal of CPU.Wherein EN5 is the master switch of radio frequency, and HPASW is power amplifier switch.
(2) channel signal baseband processing module power management scheme
when equipment is closed sendaisle power supply in baseband processing module during in holding state.
when equipment need to communicate, open the power supply of all passages, guarantee that communication completes smoothly, after sign off, power supply control switches back the state of standby on duty.
terminal needs monitoring seek channel always when standby, so must keep the power supply to single channel receive path in baseband processing module.
In the realization of baseband channel signal processing module power management:
LTC3441 chip: press DC/DC power supply chip for the single channel adjustable lifting that LINEAR company produces, the power supply up to 1.3A/3.3V can be provided, input voltage is 0-5V.In this routine power-supply management system mainly as baseband board the DSP except CPU, FPGA, D/A, the 3.3V power supply of the chips such as A/D, output manages by some MAX4798 electronic switch Dui Ge road.
LTC3545 chip: be the 3 road low-voltage output power supply chips that are specifically designed to lithium electricity of LINEAR company production, this routine power-supply management system is used it to export VD12, DSP16, VD18 tri-tunnel low pressure, as the 1.8V reference logic voltage of the core voltage of FPGA, the core voltage of DSP and FPGA, three road voltages are controllable respectively respectively.
On channel board, needed other voltages adopt integrated voltage conversion chip to complete, because the conversion efficiency of this type of chip is obviously better than power module 10%-15%, therefore adopt this scheme more effectively to solve the problem of large and self power consumption of the volume of power module own.
(3) Business Processing/control module power management scheme
when equipment is closed speech circuit power supply during in holding state.
terminal needs monitoring seek channel always when standby, therefore keeps the power supply to crypto:
terminal still must keep the power supply to MCU when standby, but can make it enter low-power consumption mode;
when equipment need to communicate, open the power supply of all passages, guarantee that communication completes smoothly, after sign off, power supply control switches back the state of standby on duty.
In the realization of Business Processing/control module power management:
MAX1586:MAX1586 chip is the power source special managing chip that Maxim is developed for Intel PXA27x series CPU specially, for PXA271CPU provides required totally 6 road power supplys, comprise: VIO, VMEM, VCORE, VPLL, VSRAM, VUSIM, this 6 road power supply is divided into again two groups: by VUSIM, VIO and the VMEM of SYS_EN signal controlling; The VCORE being controlled by PWR_EN, VPLL and VSRAM; While powering on, should guarantee that SYS_EN enable signal is not later than PWR_EN enable signal.
LT3471EDD chip: be the output two-way positive and negative voltage source chip of LINEAR company production.In this routine power-supply management system its output+5V and-5V two-way voltage, drive the analog circuit of speech part, can be turn-offed by VOC_CTRL signal.
(4) interface display power management scheme
when equipment can make display screen enter low-power consumption mode during in holding state;
when equipment need to communicate, palpus opening power, after sign off, power supply control switches back the state of standby on duty;
when operating, user should open display power supply;
display screen should operate control display switch according to user.
The voltage control (VLCD_CTRL) of OLED screen is controlled as switch by MAX4798, can all turn-off.
2. Software for Design
In this routine power-supply management system, management strategy is defined as: producer's test pattern, concealed pattern, mode standard, indicating mode, off-line mode, browse mode.
Operating state is defined as: shutdown, CPU low-power consumption, single-shot, single receipts, voice service, data service.
Operating point: the hardware controllable dot being provided by power-supply management system circuit.The controllable dot that this routine power-supply management system provides has:
MCU：VIO、VMEM、VCORE、VPLL、VSRAM；
FGPA：VD33、VD18，VD12；
DSP：D5P33、DSP16；
AD：VA33R；
DA.VA33T；
The EN5 of radio frequency unit and HPASW;
The VLCD of OLED, and the backlight illumination of OLED is controlled;
The VCCKLED of keyboard back light;
Buzzing and vibrations are controlled.
The combination of the management strategy under software control, operating state and operating point sees the following form 1:
Power management configuration under table 1 different terminals pattern
Claims (1)
1. a power management method of handheld satellite communication device, described handheld satellite communication device comprises: CPU, radio-frequency module, baseband channel signal processing module, Business Processing/control module and interface display module; CPU connects respectively modules, it is characterized in that sending power management control signal to modules by CPU; Wherein, the radio-frequency apparatus of this equipment adopts the power supply relatively independent with channel;
1), for radio-frequency module, method for managing power supply is,
1.1) this equipment, when holding state on duty, is closed upconverter sendaisle power supply, and the power supply of paging passage is only provided;
1.2) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 1.1) state;
The power management of radio-frequency module is realized in radio-frequency module, controlled by the control signal of CPU; EN5 is the master switch of radio frequency, and HPASW is power amplifier switch;
2), for baseband channel signal processing module, method for managing power supply is,
2.1) when this equipment is during in holding state, close sendaisle power supply in baseband processing module;
2.2) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 2.1) state;
2.3) keep the power supply to single channel receive path;
3), for Business Processing/control module, method for managing power supply is,
3.1) when this equipment is during in holding state, close speech circuit power supply;
3.2) keep crypto to power;
3.3) keep the power supply to CPU, make CPU enter low-power consumption mode simultaneously;
3.4) when this equipment need to communicate, open the power supply of all passages, after sign off, switch back 3.1) state;
4), for interface display module, method for managing power supply is,
4.1) when equipment is during in holding state, make display screen enter low-power consumption mode;
4.2), when equipment need to communicate, opening power, switches back 4.1 after sign off) state;
4.3) when user operates, open display screen power supply;
4.4) display screen operates control display switch according to user;
In the realization of baseband channel signal processing module power management:
LTC3441 chip: press DC/DC power supply chip for single channel adjustable lifting, 1.3A/3.3V power supply is provided, input voltage is 0-5V; In power-supply management system as baseband board the DSP except CPU, FPGA, D/A, the 3.3V power supply of A/D chip, output manages by some MAX4798 electronic switch Dui Ge road;
LTC3545 chip: for being specifically designed to 3 road low-voltage output power supply chips of lithium electricity, power-supply management system is used its output VD12, DSP16 and VD18 tri-tunnel low pressure, as the 1.8V reference logic voltage of the core voltage of FPGA, the core voltage of DSP and FPGA, three road voltages are controllable respectively respectively;
On channel board, needed other voltages adopt integrated voltage conversion chip to complete, because the conversion efficiency of this type of chip is obviously better than power module 10%～15%, therefore adopt this scheme more effectively to solve the problem of large and self power consumption of the volume of power module own;
In the realization of Business Processing/control module power management:
MAX1586 chip: be the power source special managing chip of Intel PXA27x series CPU exploitation, for PXA271CPU provides required totally 6 road power supplys, comprise: VIO, VMEM, VCORE, VPLL, VSRAM and VUSIM, this 6 road power supply is divided into again two groups: by VUSIM, VIO and the VMEM of SYS_EN signal controlling; The VCORE being controlled by PWR_EN, VPLL and VSRAM; While powering on, should guarantee that SYS_EN enable signal is not later than PWR_EN enable signal;
LT3471EDD chip: be output two-way positive and negative voltage source chip; In power-supply management system its output+5V and-5V two-way voltage, drive the analog circuit of speech part, can be turn-offed by VOC_CTRL signal;
The voltage control VLCD_CTRL of OLED screen is controlled as switch by MAX4798, can all turn-off;
In power-supply management system, management strategy is defined as: producer's test pattern, concealed pattern, mode standard, indicating mode, off-line mode and browse mode;
Operating state is defined as: shutdown, CPU low-power consumption, single-shot, single receipts, voice service and data service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010282025.7A CN102404040B (en) | 2010-09-15 | 2010-09-15 | Power management method of handheld satellite communication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010282025.7A CN102404040B (en) | 2010-09-15 | 2010-09-15 | Power management method of handheld satellite communication device |
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| CN102404040A CN102404040A (en) | 2012-04-04 |
| CN102404040B true CN102404040B (en) | 2014-07-23 |
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| CN110582112A (en) * | 2019-08-05 | 2019-12-17 | 湖北三江航天险峰电子信息有限公司 | low-power-consumption management method and module of satellite communication module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160673A1 (en) * | 1999-11-12 | 2001-12-05 | Sony Corporation | Communication control device, host device and method of communication |
| CN2550967Y (en) * | 2002-07-13 | 2003-05-14 | ***电子第五十四研究所 | Integrated function satellite communication device controlled by multiple system comprehensive group net and command |
| CN101103545A (en) * | 2005-01-26 | 2008-01-09 | 亚太卫星产业株式会社 | Apparatus and method for satellite communication installed in terrestrial portable phone and similar ground terminal |
| CN101827433A (en) * | 2010-03-10 | 2010-09-08 | 东南大学 | Energy-saving operating method for satellite positioning communication terminal of engineering machinery |
-
2010
- 2010-09-15 CN CN201010282025.7A patent/CN102404040B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160673A1 (en) * | 1999-11-12 | 2001-12-05 | Sony Corporation | Communication control device, host device and method of communication |
| CN2550967Y (en) * | 2002-07-13 | 2003-05-14 | ***电子第五十四研究所 | Integrated function satellite communication device controlled by multiple system comprehensive group net and command |
| CN101103545A (en) * | 2005-01-26 | 2008-01-09 | 亚太卫星产业株式会社 | Apparatus and method for satellite communication installed in terrestrial portable phone and similar ground terminal |
| CN101827433A (en) * | 2010-03-10 | 2010-09-08 | 东南大学 | Energy-saving operating method for satellite positioning communication terminal of engineering machinery |
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Granted publication date: 20140723 Termination date: 20200915 |