CN108089213B - Low-power-consumption control method for Beidou satellite communication positioning device - Google Patents
Low-power-consumption control method for Beidou satellite communication positioning device Download PDFInfo
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- CN108089213B CN108089213B CN201710431104.1A CN201710431104A CN108089213B CN 108089213 B CN108089213 B CN 108089213B CN 201710431104 A CN201710431104 A CN 201710431104A CN 108089213 B CN108089213 B CN 108089213B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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Abstract
The invention discloses a low-power-consumption control method for a Beidou satellite communication positioning device, which effectively prolongs the standby time and the working time of the Beidou satellite communication positioning device through the low-power-consumption design. According to the method, the working mode of the Beidou satellite communication positioning device is detected, the working mode of the Beidou RDSS communication module is set to be an intermittent working mode in the footprint mode, and the power consumption of the Beidou RDSS communication module for transmitting RDSS is reduced; and the communication frequency of the Beidou RDSS communication module is adjusted according to the motion state of the Beidou satellite communication positioning device, so that the standby time and the working time of the Beidou satellite communication positioning device can be effectively prolonged.
Description
Technical Field
The invention relates to a low-power-consumption control method, in particular to a low-power-consumption control method of a Beidou satellite communication positioning device, and belongs to the technical field of Beidou satellite navigation communication systems.
Technical Field
In the civilian ICD file provided by the Beidou navigation system, the public service signal is a B1 frequency point signal. At present, 14 Beidou satellites work in an air service area of China continental land to provide positioning, speed measurement and time service for free, the time service precision is nanosecond level, and the positioning precision is 10 meters. The Beidou satellite system also has a short message communication function and is widely applied to the fields of disaster prevention and relief, hydrology, meteorology, oceans, forestry and the like.
However, in view of the problems that the power consumption of the existing handheld Beidou communication positioning terminal is large and the standby time is not long, the full-load working time is about 8 hours, and the wide popularization of the Beidou satellite communication positioning device is limited. Therefore, how to save power consumption and improve the standby and working time of the Beidou satellite communication positioning device becomes a problem which needs to be solved urgently.
Disclosure of Invention
In view of this, the invention provides a low power consumption control method for a Beidou satellite communication positioning device, which effectively prolongs the standby time and the working time of the Beidou satellite communication positioning device through the low power consumption design.
Big dipper satellite communication positioner includes: the Beidou RDSS antenna, the Beidou RDSS communication module, the Beidou RNSS antenna, the Beidou RNSS positioning time service module, the control module, the display module, the input module and a power supply for supplying power to all the modules through the power supply management main module; the Beidou RDSS communication module, the Beidou RNSS positioning and time service module, the display module, the input module and the power supply management module are respectively connected with the control module; the Beidou RDSS antenna is connected with the Beidou RDSS communication module; the Beidou RNSS antenna is connected with the Beidou RNSS positioning and time service module.
The Beidou satellite communication positioning device has two working modes, namely a communication mode and a footprint mode;
when the Beidou RNSS positioning and timing module is in a communication mode, the Beidou RNSS positioning and timing module is in a dormant state, and a Beidou RDSS communication module completes a communication function according to a set communication frequency;
when the display module is in the footprint mode, the display module is in a closed state; the control module sets the working mode of the Beidou RDSS communication module to be an intermittent working mode; the Beidou satellite RNSS positioning and time service module carries out Beidou positioning and time service to generate a corresponding time tag, positioning information and the time tag of the Beidou satellite RNSS positioning and time service module are sampled according to a preset time interval and then stored in the control module, and after the dormancy time of the Beidou RDSS communication module is finished, the Beidou RDSS communication module is started to pack the stored positioning information and the stored time tag and then send the packed positioning information and the stored time tag to the finger control background.
The control module sets the communication frequency of the Beidou RDSS communication module according to the motion state of the Beidou satellite communication positioning device: when the Beidou satellite communication positioning device is in a motion state, the communication frequency of the Beidou satellite communication positioning device is improved; when the mobile station is in a stationary state, the communication frequency is reduced.
The starting mode of the Beidou satellite RNSS positioning and time service module is a low-power-consumption hot starting mode.
Advantageous effects
By detecting the working mode of the Beidou satellite communication positioning device, the working mode of the Beidou RDSS communication module is set to be an intermittent working mode in the footprint mode, so that the power consumption of the Beidou RDSS communication module for transmitting RDSS is reduced; and the communication frequency of the Beidou RDSS communication module is adjusted according to the motion state of the Beidou satellite communication positioning device, so that the standby time and the working time of the Beidou satellite communication positioning device can be effectively prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a low-power-consumption Beidou communication positioning device;
FIG. 2 is a schematic structural diagram of a main program of the low-power-consumption Beidou communication positioning device;
fig. 3 is a schematic diagram of a low power mode program structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The embodiment provides a low-power-consumption control method for a Beidou satellite communication positioning device, and the standby time of the Beidou satellite communication positioning device can be as long as about 48 hours through the low-power-consumption design.
As shown in fig. 1, the Beidou satellite communication positioning device comprises: the Beidou RDSS antenna, the Beidou RDSS communication module, the Beidou RNSS antenna, the Beidou RNSS positioning time service module, the control module, the display module, the input module and a power supply for supplying power to all the modules (namely all the modules except the Beidou RDSS antenna and the Beidou RNSS antenna) through the power supply management main module. The Beidou RDSS communication module, the Beidou RNSS positioning and time service module, the display module (namely a display screen), the input module (keyboard) and the power supply management module are respectively connected with the control module; the Beidou RDSS antenna is connected with the Beidou RDSS communication module; the Beidou RNSS antenna is connected with the Beidou RNSS positioning and time service module.
Wherein big dipper RDSS communication module is used for realizing receiving and dispatching, modulation, demodulation of satellite navigation signal, includes: the Beidou RDSS base band processing module, the transceiving channel module, the S-band low noise amplifier, the L-band power amplifier and the power supply management submodule. The external power supply is connected with the power supply input end of a power supply management submodule inside the Beidou RDSS communication module through a power supply management main module, and the power supply management submodule supplies power to the Beidou RDSS baseband processing module, the transceiving channel module, the S-band low-noise amplifier and the L-band power amplifier. After the Beidou downlink signals obtained by the Beidou RDSS antenna are transmitted to the Beidou RDSS communication module, the Beidou downlink signals firstly pass through the S-band low-noise amplifier and then are transmitted to the Beidou RDSS baseband processing module through the transceiving channel module, and the Beidou RDSS baseband processing module processes the received signals to obtain data information, namely, the signals in a TTL232 form are output. The Beidou RDSS baseband processing module can process Beidou downlink signals, can also modulate signals input by the input module and send the modulated signals to the L-band power amplifier through the receiving and sending channel module, the amplified signals are processed by the L-band power amplifier to obtain Beidou uplink output signals, and the Beidou uplink output signals are transmitted to a Beidou satellite through a Beidou RDSS antenna. The Beidou RDSS communication module is provided with an RDSS radio frequency transceiver chip, a power amplifier chip and a baseband circuit, and the RDSS radio frequency transceiver chip is high in integration level and low in power consumption in the prior art. The Beidou RDSS communication module is a miniaturized and low-power-consumption module.
The Beidou RNSS positioning and time service module is internally provided with a BD/GPS positioning device for Beidou positioning and time service so as to generate a corresponding time tag. The control module is a low-power ARMSOC control module, and the display module displays information output by the Beidou RDSS communication module. The input module is used for inputting information to the Beidou RDSS communication module through the control module and completing system configuration.
The power management main module is composed of a booster circuit and a voltage stabilizing circuit, wherein the power supply is a dry battery in the embodiment, the voltage is 3.9V, the total capacity is 4Ah, and the maximum discharge current is 6A. Because big dipper RDSS communication module, big dipper RNSS location time service module, control module's operating voltage is different among this big dipper communication positioner, consequently configuration boost circuit steps up power supply voltage to 5V and supplies power to big dipper RDSS module, and configuration step-down circuit reduces power supply voltage to 3.3V voltage simultaneously and supplies power for big dipper RNSS module and control module and display module.
The Beidou satellite communication positioning device has two working modes, namely a communication mode and a footprint mode.
When the Beidou RNSS positioning and timing module is in a communication mode, the Beidou RNSS positioning and timing module is in a dormant state, and a Beidou RDSS communication module completes a communication function according to a set communication frequency; the control module sets the communication frequency of the Beidou RDSS communication module according to the motion state of the Beidou satellite communication positioning device: when the Beidou satellite communication positioning device is in a motion state, the communication frequency of the Beidou satellite communication positioning device is improved; when the mobile station is in a stationary state, the communication frequency is reduced.
When the device is in the footprint mode, the control module controls the power management main module to enable the display module to be in a closed state, so that the electric quantity of the battery is saved; meanwhile, the control module sets the working mode of the Beidou RDSS communication module to be an intermittent working mode, namely the Beidou RDSS communication module is in a closed state for most of time; the Beidou satellite RNSS positioning and time service module carries out Beidou positioning and time service to generate a corresponding time tag, a positioning result and the time tag are stored in a FLASH corresponding to the control module according to a preset time interval sampling time, and after the dormancy time of the Beidou RDSS communication module is finished, the Beidou RDSS communication module is started to pack and transmit the stored positioning information and the corresponding time tag back to the finger control background. The working mode of the Beidou RNSS positioning and time service module is a hot start mode, so that the starting time of the Beidou RNSS positioning and time service module is shortened, and the standby time and the working time of the Beidou satellite communication positioning device are prolonged.
The working principle of the Beidou satellite communication positioning device is further explained with reference to fig. 2. After initialization, the control module judges the working mode of the device according to a positioning signal sent by the Beidou RNSS positioning time service module, if the device is in the footprint working mode, the Beidou RDSS communication module stops communication and works in an intermittent mode, and therefore energy consumption is saved; if the communication mode is in, the Beidou RDSS communication module reports satellite signals to the finger control background according to the set communication frequency.
This big dipper communication positioner adopts inside battery powered, relies on simple boost circuit and step-down circuit to realize the power supply to whole location terminal, and through the detection to its mode, has reduced the consumption that big dipper RDSS communication module launches RDSS when being in the footprint mode.
As shown in fig. 3, in the power-on non-communication-relocated mode: the system is started, and after all modules are initialized, a Beidou satellite RNSS positioning time service module is started to search and position satellites; resetting the control module timer and starting timing; when the timer does not receive the zero clearing signal, keeping a timing state; synchronizing Beidou time to a Beidou satellite RNSS positioning and time service module; and the Beidou time is displayed and output through the display module. The control module judges whether the number of the positioning satellites reaches a set threshold value M: if the number of the positioning satellites reaches a set threshold value M, the capturing, tracking and position resolving functions of the Beidou RNSS positioning and time service module are closed; if the number of the positioning satellites does not reach the set value M, the control module judges whether the timing reaches the set time, and if the timing reaches the set time, the capturing, tracking and position resolving functions of the RNSS positioning and time service module of the Beidou satellite are closed no matter whether the number of the positioning satellites reaches the set value; if the set time is not reached, the judgment is continuously repeated until the set time is reached.
In footprint mode: after synchronizing the Beidou time to an internal counter, the control module judges whether the current Beidou RNSS positioning time service module is in a hot start working mode: if not, the big dipper RNSS module works in a hot start mode; if the position query information is not received, setting the Beidou RDSS communication module to be in a sleep mode; and if the current mode is the active mode or the position query information is received, analyzing the position of the user.
According to the control method, on one hand, the working time length and the working frequency of the Beidou RDSS communication module are reduced by adjusting a control program of the control module, on the other hand, the starting mode of the Beidou RNSS positioning time service module is detected, the Beidou RNSS positioning time service module is controlled to work in a hot starting mode, and the Beidou RNSS positioning time service module searches satellites from starting to searching until the satellite is searched until the time service information and the starting time interval of the positioning information are obtained are as short as possible.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The low-power consumption control method of the Beidou satellite communication positioning device comprises the following steps: the Beidou RDSS antenna, the Beidou RDSS communication module, the Beidou RNSS antenna, the Beidou RNSS positioning time service module, the control module, the display module, the input module and a power supply for supplying power to all the modules through the power supply management main module; the Beidou RDSS communication module, the Beidou RNSS positioning and time service module, the display module, the input module and the power supply management module are respectively connected with the control module; the Beidou RDSS antenna is connected with the Beidou RDSS communication module; the Beidou RNSS antenna is connected with the Beidou RNSS positioning and time service module; the Beidou RDSS communication module is used for realizing receiving, transmitting, modulating and demodulating satellite navigation signals; it is characterized in that the preparation method is characterized in that,
after the Beidou satellite communication positioning device is initialized, the control module judges the working mode of the Beidou satellite communication positioning device according to a positioning signal sent by the Beidou RNSS positioning time service module:
if the Beidou RNSS positioning and time service module is in a communication mode, the Beidou RDSS communication module completes a communication function according to a set communication frequency;
if the footprint mode is adopted, the display module is in a closed state; the control module sets the working mode of the Beidou RDSS communication module to be an intermittent working mode; the Beidou satellite RNSS positioning and time service module carries out Beidou positioning and time service to generate a corresponding time tag, positioning information and the time tag of the Beidou satellite RNSS positioning and time service module are sampled according to a preset time interval and then stored in the control module, and after the dormancy time of the Beidou RDSS communication module is finished, the Beidou RDSS communication module is started to pack the stored positioning information and the stored time tag and then send the packed positioning information and the stored time tag to the command control background;
the starting mode of the Beidou satellite RNSS positioning and time service module is a low-power-consumption hot starting mode.
2. The low-power-consumption control method of the Beidou satellite communication and positioning device of claim 1, characterized by comprising the following steps: the control module sets the communication frequency of the Beidou RDSS communication module according to the motion state of the Beidou satellite communication positioning device: when the Beidou satellite communication positioning device is in a motion state, the communication frequency of the Beidou satellite communication positioning device is improved; when the mobile station is in a stationary state, the communication frequency is reduced.
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| CN110139348B (en) * | 2019-05-21 | 2022-10-28 | 广东几米星联通讯有限公司 | RDSS communication method and terminal thereof |
| CN111896985A (en) * | 2020-07-31 | 2020-11-06 | 四川铁集共联科技股份有限公司 | Dual-mode Internet of things positioning system and method |
| CN112924989A (en) * | 2021-03-29 | 2021-06-08 | 深圳市甲天行科技有限公司 | Beidou positioning device for maritime search and rescue ship and using method thereof |
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Inventor after: Gao Peng Inventor after: Guo Zhenzong Inventor after: Liu Jikun Inventor after: Gu Ziwei Inventor after: Wu Yuxin Inventor after: Chen Zhi Inventor before: Zhang Meng Inventor before: Guo Zhenzong Inventor before: Liu Jikun Inventor before: Wu Yuxin Inventor before: Gu Ziwei Inventor before: Chen Zhi |