CN206618862U - A kind of sub_meter position terminal - Google Patents
A kind of sub_meter position terminal Download PDFInfo
- Publication number
- CN206618862U CN206618862U CN201720299480.5U CN201720299480U CN206618862U CN 206618862 U CN206618862 U CN 206618862U CN 201720299480 U CN201720299480 U CN 201720299480U CN 206618862 U CN206618862 U CN 206618862U
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- receiving modules
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Abstract
The utility model is related to a kind of sub_meter position terminal, belongs to field of locating technology.The terminal includes control module, power module, GNSS receiving modules, bimodulus bluetooth module, indicator lamp and control button, the indicator lamp and control button are electrically connected with control module, the power module includes lithium battery, charging/battery management unit, the first level conversion unit and second electrical level converting unit, and the lithium battery, the first level conversion unit, second electrical level converting unit and bimodulus bluetooth module are electrically connected with charging/battery management unit；The control module is electrically connected with charging/battery management unit, the first level conversion unit, second electrical level converting unit, GNSS receiving modules and bimodulus bluetooth module, first level conversion unit is electrically connected with GNSS receiving modules, and the GNSS receiving modules are BDS/GPS bimodulus single-frequency receiving modules.
Description
Technical field
The utility model is related to field of locating technology, more particularly to a kind of sub_meter position terminal.
Background technology
All the time, government injects capital into build satellite navigation system, Beidou satellite navigation system with personnel energetically（BDS）
Constantly flourish.With the announcement of the correlation technique file of triones navigation system, Chinese Beidou navigation industry is formal
Enter the new stage of satellite navigation system globalization.At present, the overseas application of Beidou satellite navigation system has been achieved for weight
Gonna breakthrough.In by the end of March, 2013, and Thailand and China are by research and cooperation agreement, and Thailand turns into the navigation system of Chinese independent research
The first overseas customer of system.April, Chinese science and technology portion represents that Laos also endorsed similar agreement with Brunei, and will tentatively use should
Navigation system.On October 30th, 2013, BDS starts to come into operation first in foreign country, use of the Big Dipper industry in country in Southeast Asia
Achieve preliminary progress.China and the Russian meeting that cooperates with regard to satellite navigation, open the Big Dipper and move towards Asia-Pacific, or even the world
Gate.In several years of future, Beidou navigation to national security using that will have an immense impact on, and this pacifies also for national life
The selection that must be made entirely.
Countries in the world, alliance's number of satellite being continuously increased and develop rapidly, people to the requirement navigating and measure not yet
It is disconnected to improve.A kind of main flow direction for being combined into research and application of multimode observation satellite.Different navigation system and means exist
The performance advantage and disadvantage of application aspect are different, and the quality of different system and means is complementary, checks and balance and guides, integrated navigation performance
Any navigation system, such as GPS, GLONASS and BDS and GPS and INS will be higher than.Navigational environment is poor, elevation mask is big
When, satellite visible number, positioning precision declines, and a variety of navigation system are rationally used cooperatively, contrast and triangular web, in positioning accurate
Significant advantage can be all produced in terms of degree, anti-interference, reliability, availability, efficiency.
Differential GPS Technology is that a kind of use is universal, the method for being effectively reduced or even eliminating various GPS measurement errors,
This method can preferably improve positioning precision and integrity.Differential GPS Technology（DGPS）It is by relying on another benchmark
The relative correction data that receiver of standing is provided improve the technology of GPS precision indirectly.Under normal circumstances, base station connects
Receipts machine knows the position of oneself, according to the precision coordinate being known a priori by, and base station can be calculated exactly to the difference of satellite
Correcting value（GPS measurement and positioning errors）, and by radio wave transmission platform, by base station in real time by this measurement error amendment
Amount is sent to the rover station receiver positioned.Rover station receiver using this receive calibration error is adjusted and changed
The just measured value of itself.Rover station will not only receive the navigation information from observation satellite, while also to receive base station reception
The correcting value of machine（Correct data volume）, check and correction is compared to its positioning result, so as to improve measurement and the positioning accurate of rover station
Degree.Generally, the use of this technology, can make navigation accuracy bring up to one or two meter（Ideal situation）.Similarly, the Big Dipper is led
Boat alignment system can also improve measurement and positioning precision using this technology, be applied using the Big Dipper, compatible with GPS receiver
Innate advantage, and a kind of new technology set up on the basis of Differential GPS Technology（DGNSS technologies）, can improve to a greater degree and
Improve the various aspects of performance of navigator fix.
The content of the invention
The utility model embodiment provides a kind of sub_meter position terminal, its compact, but it is using the Big Dipper, simultaneous
Hold the innate advantage of GPS application, and a kind of new technology set up on the basis of Differential GPS Technology（DGNSS technologies）, energy
The various aspects of performance of navigator fix is improved to a greater degree.The technical scheme is as follows：
The utility model embodiment provides a kind of sub_meter position terminal, including control module, power module, GNSS connect
Module, bimodulus bluetooth module, indicator lamp and control button are received, the indicator lamp and control button are electrically connected with control module, institute
Stating power module includes lithium battery, charging/battery management unit, the first level conversion unit and second electrical level converting unit, institute
State lithium battery, the first level conversion unit, second electrical level converting unit and bimodulus bluetooth module and charging/battery management unit electricity
Connection；The control module connects with charging/battery management unit, the first level conversion unit, second electrical level converting unit, GNSS
Module and the electrical connection of bimodulus bluetooth module are received, first level conversion unit is electrically connected with GNSS receiving modules, the GNSS
Receiving module is BDS/GPS bimodulus single-frequency receiving modules.
Wherein, the GNSS receiving modules in the utility model embodiment include BDS/GPS dual mode satellites navigation receiving unit,
SAW filter units, low-noise amplifier, antenna switching circuit, passive antenna and active antenna, the active antenna and BDS/
GPS dual-mode satellite navigation receiving unit and antenna switching circuit electrical connection, the passive antenna are electrically connected with SAW filter units,
The low-noise amplifier is electrically connected with BDS/GPS dual mode satellites navigation receiving unit, SAW filter units and antenna switching circuit
Connect.
Specifically, the control module in the utility model embodiment includes STM32F303CBT6 chips.
Further, the control module in the utility model embodiment is electrically connected by UART serial ports with GNSS receiving modules
Connect.
Wherein, charging/battery management unit in the utility model embodiment includes RT9526AGE chips.
Wherein, the first level conversion unit and second electrical level converting unit in the utility model embodiment include
RT9193-33GB chips.
Wherein, the bimodulus bluetooth module in the utility model embodiment includes BM77 chips.
The technical scheme that the utility model embodiment is provided has the beneficial effect that：
1st, the positions terminal volume that the utility model is provided is compact, but it is applied using the Big Dipper, compatible with GPS receiver
Innate advantage, and a kind of new technology set up on the basis of Differential GPS Technology（DGNSS technologies）, can improve to a greater degree and
Improve navigation and positioning accuracy.
2nd, the power module that the utility model is provided, can effectively be that each module and unit are powered, which ensure that whole whole
The stability at end, extends the service life of whole terminal；Specifically, using charging/battery management unit（Single-lithium-battery electricity
Pond linear charger chip）, it optimizes by using the control algolithm comprising priming mode, fast mold filling formula and constant voltage mode charges
Process, when full of constant voltage mode is maintained at later to ensure that battery is always at full state, its charging current can lead to
Cross a non-essential resistance to be set, then internal nuclear temperature is adjusted to ensure in any available environment internal hot feedback circuit
At a temperature of all battery is charged with iptimum speed.
3rd, the utility model uses two system single-frequency point GNSS receiving modules, can support single GPS, single Big Dipper positioning, also may be used
Support mixed positioning, the characteristics of utility model has small volume, low in energy consumption, portable and high reliability；The utility model is used
The STM32F303CBT6 technical grades chip of ST companies is more stablized as its core processor, whole system work, efficiently；This
Utility model uses bimodulus bluetooth module（BM77）, compatibility classics bluetooth BR/EDR and low-power consumption LE technologies support transparent transmission
Pattern, seamless transit UART serial datas, by Windows GUI or MCU can easy configuration, firmware can pass through serial ports liter
Level, onboard microstrip antenna allows product to provide easily data-transmission mode with smart mobile phone or flat board.
Brief description of the drawings
The theory diagram for the sub_meter position terminal that Fig. 1 provides for the utility model；
The part detailed schematic block diagram for the sub_meter position terminal that Fig. 2 provides for the utility model；
The power management process figure for the sub_meter position terminal that Fig. 3 provides for the utility model；
The circuit diagram that Fig. 4 combines for the control module that the utility model is provided with bimodulus bluetooth module；
The theory diagram that Fig. 5 combines for the control module that the utility model is provided with GNSS receiving modules.
Embodiment
With reference to embodiment, embodiment of the present utility model is described in further detail.Following examples
For illustrating the utility model, but it is not limited to scope of the present utility model.
Referring to Fig. 1 and 2, the utility model embodiment provides a kind of sub_meter position terminal, including housing, control mould
Block, power module, GNSS receiving modules, bimodulus bluetooth module, indicator lamp and control button etc..Wherein, control module, power supply mould
Block, GNSS receiving modules and bimodulus bluetooth module are located in housing, and indicator lamp and control button are located at surface of shell, indicating lamp
Body is LED light.Wherein, indicator lamp and control button are electrically connected with control module；Indicator lamp is two bi-colour lights, is respectively
Located at the positive charging of housing/bluetooth indicator lamp and positioning/battery capacity indication lamp；Control button is settable one, is housing front
Power switch button.Preferably, can back side of shell set a charging inlet, can on the left of housing or right side set it is active
Antenna Sub-miniature B.Power module includes lithium battery（One）, charging/battery management unit, the first level conversion unit and second
Level conversion unit etc., for for each module for power supply；Wherein, lithium battery, the first level conversion unit, second electrical level converting unit
Electrically connected with bimodulus bluetooth module with charging/battery management unit, the external power interface of charging/battery management unit is located at
Back side of shell.Wherein, control module is used for the positional information that processing GNSS receiving modules are received in real time, and constantly gathers lithium
Battery level information, packs together with positional information and issues bimodulus bluetooth module.User is obtained by connecting the bluetooth of positioning terminal
Take the data；Control module also needs to control switch and the dormancy of complete machine power supply, and management LED status is shown.
Wherein, referring to Fig. 2, control module and charging/battery management unit（State end, for obtaining electricity）, first electricity
Flat converting unit（Enable Pin）, second electrical level converting unit（Output end）, GNSS receiving modules（Data input output end）With it is double
Mould bluetooth module（Electric Enable Pin and data input/output terminal）Electrical connection.First level conversion unit（Output end）Received with GNSS
Module is electrically connected for being powered for GNSS receiving modules.Wherein, GNSS receiving modules are BDS/GPS bimodulus single-frequency receiving modules；
Specifically, GNSS receiving modules use low power dissipation design, can real-time tracking Big Dipper BDS B1 and GPS L1 two system single-frequency points
Navigation satellite signal, receives the difference information of RTCM format, and the positional information for exporting NMEA forms is fixed there is provided the RTD better than 1m
Position precision, and support the seamless switching of built-in passive antenna and external active antenna.
Wherein, referring to Fig. 5, the GNSS receiving modules in the utility model embodiment navigate including BDS/GPS dual mode satellites
Receiving unit, SAW filter units, low-noise amplifier（LNA）, antenna switching circuit, passive antenna and active antenna etc..Its
In, active antenna is electrically connected with BDS/GPS dual mode satellites navigation receiving unit and antenna switching circuit, and passive antenna is filtered with SAW
Ripple unit is electrically connected, low-noise amplifier and GNSS dual mode satellites navigation receiving unit, SAW filter units and antenna switching circuit
Electrical connection.Specifically, passive antenna is built-in, and satellite-signal is received by passive antenna, first passes through SAW, then by LNA low noises
Amplifier, finally reaches satellite navigation receiving module；Active antenna is external（Pass through Sub-miniature B）, when antenna switching circuit is detectd
When measuring active antenna access, an enable signal can be generated low-noise amplifier is turned off, satellite-signal is directly via active
Antenna reaches satellite navigation receiving module.Wherein, BDS/GPS dual mode satellites navigation receiving unit has knowledge by oneself using section of Big Dipper state
The RN368 of property right, can support the seamless free switching of active antenna and passive antenna, wherein, sound wave surface wave filter SAW and low
Noise amplifier is used for filtering out useless frequency and amplifies useful frequency signal parts.Preferably, BDS/GPS dual mode satellites
Navigation receiving unit carries reserce cell, after system enters resting state, key message can be preserved, to realize thermal starting work(
Energy.More specifically, RN368 can also receive the RTCM difference informations forwarded from STM32F303, a puppet is obtained after being resolved
Away from solution, positioning precision can arrive sub-meter grade, then this location information is sent to STM32F303.
Specifically, the control module in the utility model embodiment can be microprocessor, can specifically use with ARM
Cortex-M4 is the STM32F303CBT6 technical grade chips of the ST companies of kernel, and it supports 5 road serial ports of extension, can be rich with carry
Rich peripheral module.Control module can be blue by the TTL serial ports and BDS/GPS dual mode satellites navigation receiving unit and bimodulus of extension
Tooth module is electrically connected.Further, the control module in the utility model embodiment passes through UART serial ports and GNSS receiving modules
Electrical connection.
Wherein, charging/battery management unit in the utility model embodiment includes RT9526AGE chips（Richtek is public
The single lithium ion battery linear charger provided is provided）And the accessory circuit such as bleeder circuit；First level conversion unit and second
Level conversion unit includes RT9193-33GB chips（The supper-fast linear voltage regulator of ultra low differential pressure that Richtek companies provide）.
Specifically, referring to Fig. 2, power module in the utility model embodiment can be using external 5V/1A universal power adapters as filling
Power supply, the voltage can be converted to by RT9526AGE chips 4.2V be respectively bimodulus bluetooth module, the first level conversion unit and
Second electrical level converting unit is powered, and for lithium cell charging（For a section lithium cell charging voltage 4.2V）, while electricity is believed
Breath is sent to control module；First level conversion unit and second electrical level converting unit distinguish photovoltaic conversion for 3.3V/300mA
It is that GNSS receiving modules and control module are powered.Control module controls the Enable Pin and bimodulus bluetooth mould of the first level conversion unit
The Enable Pin of block, realizes the power on/off function of complete machine, if without being connected in several minutes of bluetooth after start, control complete machine enters
Resting state, until there is external key to interrupt wake-up.The course of work of power module is as shown in Figure 3.
Further, referring to Fig. 4, the bimodulus bluetooth module in the utility model embodiment passes through TTL serial ports and control
Module is electrically connected, and positional information and information about power are directly sent to bimodulus bluetooth module by control module, and bimodulus bluetooth module is again
The equipment of pairing connection is wirelessly sent to, and receives the RTCM difference informations from device forwards, then is given to control
This difference information is transmitted to GNSS receiving modules by molding block, control module.Specifically, the present embodiment uses a for ultralow work(
The bimodulus transparent transmission module for incorporating radio frequency transmitter circuitry of wireless application design is consumed, BM77 chips are specifically included.
Wherein, " first " and " second " in the present embodiment only plays differentiation, without other Special Significances.
The utility model embodiment provides a kind of sub_meter position terminal, and it has the following advantages that：
1st, the positions terminal volume that the utility model is provided is compact, but it is applied using the Big Dipper, compatible with GPS receiver
Innate advantage, and a kind of new technology set up on the basis of Differential GPS Technology（DGNSS technologies）, can improve to a greater degree and
Improve navigation and positioning accuracy.
2nd, the power module that the utility model is provided, can effectively be that each module and unit are powered, which ensure that whole whole
The stability at end, extends the service life of whole terminal；Specifically, using charging/battery management unit（Single-lithium-battery electricity
Pond linear charger chip）, it optimizes by using the control algolithm comprising priming mode, fast mold filling formula and constant voltage mode charges
Process, when full of constant voltage mode is maintained at later to ensure that battery is always at full state, its charging current can lead to
Cross a non-essential resistance to be set, then internal nuclear temperature is adjusted to ensure in any available environment internal hot feedback circuit
At a temperature of all battery is charged with iptimum speed.
3rd, the utility model uses two system single-frequency point GNSS receiving modules, can support single GPS, single Big Dipper positioning, also may be used
Support mixed positioning, the characteristics of utility model has small volume, low in energy consumption, portable and high reliability；The utility model is used
The STM32F303CBT6 technical grades chip of ST companies is more stablized as its core processor, whole system work, efficiently；This
Utility model uses bimodulus bluetooth module（BM77）, compatibility classics bluetooth BR/EDR and low-power consumption LE technologies support transparent transmission
Pattern, seamless transit UART serial datas, by Windows GUI or MCU can easy configuration, firmware can pass through serial ports liter
Level, onboard microstrip antenna allows product to provide easily data-transmission mode with smart mobile phone or flat board.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of sub_meter position terminal, it is characterised in that blue including control module, power module, GNSS receiving modules, bimodulus
Tooth module, indicator lamp and control button, the indicator lamp and control button are electrically connected with control module, and the power module includes
Lithium battery, charging/battery management unit, the first level conversion unit and second electrical level converting unit, the lithium battery, the first electricity
Flat converting unit, second electrical level converting unit and bimodulus bluetooth module are electrically connected with charging/battery management unit；The control mould
Block is blue with charging/battery management unit, the first level conversion unit, second electrical level converting unit, GNSS receiving modules and bimodulus
Tooth module is electrically connected, and first level conversion unit is electrically connected with GNSS receiving modules.
2. sub_meter position terminal according to claim 1, it is characterised in that the GNSS receiving modules are BDS/GPS
Bimodulus single-frequency receiving module.
3. sub_meter position terminal according to claim 2, it is characterised in that the GNSS receiving modules include BDS/
GPS dual-mode satellite navigation receiving unit, SAW filter units, low-noise amplifier, antenna switching circuit, passive antenna and active
Antenna, the active antenna is electrically connected with BDS/GPS dual mode satellites navigation receiving unit and antenna switching circuit, the passive day
Line is electrically connected with SAW filter units, and the low-noise amplifier and BDS/GPS dual mode satellites navigation receiving unit, SAW filtering are single
Member and antenna switching circuit electrical connection.
4. sub_meter position terminal according to claim 1, it is characterised in that the control module includes
STM32F303CBT6 chips.
5. sub_meter position terminal according to claim 1, it is characterised in that the control module by UART serial ports with
GNSS receiving modules are electrically connected.
6. sub_meter position terminal according to claim 1, it is characterised in that the charging/battery management unit includes
RT9526AGE chips.
7. sub_meter position terminal according to claim 1, it is characterised in that first level conversion unit and second
Level conversion unit includes RT9193-33GB chips.
8. sub_meter position terminal according to claim 1, it is characterised in that the bimodulus bluetooth module includes BM77 cores
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299480.5U CN206618862U (en) | 2017-03-27 | 2017-03-27 | A kind of sub_meter position terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299480.5U CN206618862U (en) | 2017-03-27 | 2017-03-27 | A kind of sub_meter position terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206618862U true CN206618862U (en) | 2017-11-07 |
Family
ID=60234004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720299480.5U Expired - Fee Related CN206618862U (en) | 2017-03-27 | 2017-03-27 | A kind of sub_meter position terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206618862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259047A (en) * | 2018-02-28 | 2018-07-06 | 国家海洋技术中心 | A kind of multifunction wireless satellite bimodulus communication and command case |
| CN108333608A (en) * | 2018-04-03 | 2018-07-27 | 安徽国华光电技术有限公司 | A kind of GPS positioning difference base station device |
| CN108490466A (en) * | 2018-04-03 | 2018-09-04 | 安徽国华光电技术有限公司 | A kind of vehicle-mounted high-precision positioning device |
-
2017
- 2017-03-27 CN CN201720299480.5U patent/CN206618862U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259047A (en) * | 2018-02-28 | 2018-07-06 | 国家海洋技术中心 | A kind of multifunction wireless satellite bimodulus communication and command case |
| CN108333608A (en) * | 2018-04-03 | 2018-07-27 | 安徽国华光电技术有限公司 | A kind of GPS positioning difference base station device |
| CN108490466A (en) * | 2018-04-03 | 2018-09-04 | 安徽国华光电技术有限公司 | A kind of vehicle-mounted high-precision positioning device |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20190327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |