CN107247283A - Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology - Google Patents
Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology Download PDFInfo
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- CN107247283A CN107247283A CN201710161203.2A CN201710161203A CN107247283A CN 107247283 A CN107247283 A CN 107247283A CN 201710161203 A CN201710161203 A CN 201710161203A CN 107247283 A CN107247283 A CN 107247283A
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000001133 acceleration Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 8
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- 238000007726 management method Methods 0.000 description 6
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
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- 230000008859 change Effects 0.000 description 3
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- 230000005358 geomagnetic field Effects 0.000 description 3
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- 238000007906 compression Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
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- 238000005265 energy consumption Methods 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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Classifications
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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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/04—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by terrestrial means
- G01C21/08—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by terrestrial means involving use of the magnetic field of the earth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Astronomy & Astrophysics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Automation & Control Theory (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The present invention relates to satellite technology, particularly a kind of Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology.It is to connect power management module, acceleration sensor module, high score satellite reception module, phone module, expansion module, lightning-protection module, 3G/4G communication modules, earth's magnetic field/Big Dipper locating module and image processing module respectively by arm processor to constitute；The present invention has indoor position accuracy high, and signal is received apart from remote, the characteristics of lightning protection properties are good.
Description
Technical field
The present invention relates to satellite technology, particularly a kind of Big Dipper 3G/4G video lightning protection based on high score satellite reception technology
Terminal.
Background technology
With the development of the technology maturations such as network technology, identification technology, microelectric technique, encoding and decoding technique, and China
The rapid emergence of second generation Beidou satellite navigation industry, social every profession and trade increasingly increases the demand of Big Dipper video acquisition terminal,
Being successfully applied to wisdom traffic, two visitors one throughout the country jeopardizes heavy goods vehicle, wisdom shipping, smart city, numeral at present
The fields such as forest fire protection, modern agriculture.
The commonly used Big Dipper video car-mounted terminal of current China is essentially all 3G the or 4G nets using three big operators
Network transmits location data and video image, realizes the real-time video to vehicles such as car, school bus, bus, taxis
Monitoring, the specification behavior of driver to a certain extent, and ensured the traffic safety of driver and the property safety of passenger, with
The further development of China's Beidou satellite navigation, and people are to public safety increasing demand, the application of this Terminal Type
It will have good prospects more and more extensively.
But, the function of existing Big Dipper video terminal is single, and people can not have been met and have been used for Big Dipper video terminal
It is required that increasingly increase, be unfavorable for the development of Beidou satellite navigation application industry.
The content of the invention
It is an object of the invention to provide a kind of Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology.
The purpose of the present invention is achieved through the following channels：A kind of Big Dipper 3G/4G based on high score satellite reception technology
Video lightning protection terminal, it is to connect power management module, acceleration sensor module, high score satellite reception respectively by arm processor
Module, phone module, expansion module, lightning-protection module, 3G/4G communication modules, earth's magnetic field/Big Dipper locating module and image processing mould
Block is constituted；
Described high score satellite reception module is that link order receiving unit, image output unit, signal connect radio frequency chip respectively
Receive unit, graphics processing unit and signal conversion unit, signal receiving unit wireless connection active antenna therein, image output
Unit is connected with the display and control unit in arm processor.
As the further optimization of this programme, described arm processor uses STM32F103VCT6 chips.
Big Dipper 3G/4G video lightning protection terminals of the invention based on high score satellite reception technology, using earth's magnetic field location technology
Earth's magnetic field/Big Dipper locating module of exploitation is merged with Big Dipper location technology, in the case where Big Dipper positioning signal is poor（Such as：Mountain
Area, tunnel, interior, garage, underground parking etc.）, geomagnetic field sensors unit in locating module is automatically selected, is increased substantially
Positioning precision；Built-in high score satellite reception module, can receive the video image and atmospheric environment index, calamity in neighbouring 1 kilometer
Evil occurrence index, has been significantly increased the efficiency of enforcement vehicle, and the stabilization of society is ensure that to a greater extent, is smart city
Construction provide technical support；In terms of lightning protection, mainly using developing materials such as zinc oxide resistance sheet, ESD protection diodes
Novel lightning-proof module, from video terminal is protected to a greater extent, be applicable to wisdom forest fire protection etc. higher to lightning protection requirement
Association area；In earth-magnetism navigation technical foundation, using virtual gravitational field height-finding technique, the accurate of indoor positioning floor is solved
Estimation problem, important technical support is provided for indoor positioning.
Compared with the prior art, the invention has the advantages that：
1st, the Big Dipper 3G/4G video terminals of current China's prior art, the big-dipper satellite locating module typically used, in end
In the positioning difficult to realize such as mountain area, tunnel, interior, garage, underground parking, and the present invention based on high score satellite reception technology
Big Dipper 3G/4G video lightning protection terminal major advantages be using earth's magnetic field location technology merged with Big Dipper location technology develop it is new
Type locating module, in the case where Big Dipper positioning signal is poor（Such as：Mountain area, tunnel, interior, garage, underground parking etc.）, from
Geomagnetic field sensors unit in dynamic regioselective module, increases substantially positioning precision and orientation range, realizes positioning non-blind area
Target.
2nd, existing Big Dipper 3G/4G video terminals, can only carry out real-time video by being connected to the video camera of terminal at present
Monitoring, and the video terminal of the present invention adds built-in high score satellite reception module in prior art basis, can be by signal
The external GFNS active antennas of receiving unit receive the working frequency points of No. 5 satellite launchs of high scoreMHZ, bandwidthMHZ G5 data signals, conversion and processing through inside modules each unit and processor, can show in terminal
Video image near being watched on screen in 1 kilometer, is substantially increased the scope of video monitoring, and improve enforcement vehicle
Efficiency, ensure that the stabilization of society, important technical support is provided for the construction of smart city to a greater extent.
3rd, video terminal of the invention is in terms of lightning protection, mainly using materials such as zinc oxide resistance sheet, ESD protection diodes
The Novel lightning-proof module of exploitation, it is adaptable to which the overvoltage that control signal, data communication, computer network etc. are integrated accurately is prevented
Shield, acts on simultaneous with the signal power source lightning protection of different voltage class, possesses that discharge capacity is big, transmission rate is high, without leakage
Flow, be swift in response, reliable operation the features such as.From video terminal circuit is protected to a greater extent, wisdom forest fire protection is applicable to
Higher association area is required Deng to lightning protection.
4th, existing Big Dipper 3G/4G video terminals, big-dipper satellite positioning signal indoors is poor, and the video of the present invention
Terminal, in earth-magnetism navigation technical foundation, using virtual gravitational field height-finding technique, the accurate estimation for solving indoor positioning floor is asked
Topic, important technical support is provided for indoor positioning.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is high score satellite reception modular structure block diagram in the present invention；
Fig. 3 is high score satellite reception module circuit diagram in the present invention.
Embodiment
As shown in figure 1, a kind of Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology of the present invention, it is special
Levy and be：It is to connect power management module 2, acceleration sensor module 3, high score satellite reception module respectively by arm processor 1
4th, phone module 5, expansion module 6, lightning-protection module 7,3G/4G communication modules 8, earth's magnetic field/Big Dipper locating module 9 and image processing
Module 10 is constituted；
Described high score satellite reception module 4 be the difference of radio frequency chip 18 link order receiving unit 11, image output unit 13,
Signal receiving unit 14, graphics processing unit 16 and signal conversion unit 17, signal receiving unit 14 therein are wirelessly connected with
Source antenna 12, image output unit 13 is connected with the display and control unit 15 in arm processor 1.
Arm processor STM32F103VCT6 chips in this programme are as core signal processors, by manufacturer
STMicroelectronics is produced, the chip Large Copacity on-chip memory, and it uses 3.3V power voltage supplies, low in energy consumption, wide electricity
Press scope.Using serial logical between CPU and earth's magnetic field/Big Dipper locating module, high score satellite reception module, 3G/4G communication modules
Letter.STM32F103 family chips based on Cortex-M3 kernels are 32 new embedded microprocessors, and it is to be not required to behaviour
Make the ARM of system, its performance is far above 51 series monolithics；Very high code efficiency, series microprocessor work frequency are provided
Rate is 72MHz, the SRAM of the built-in up to flash storage of 128K bytes and 20K bytes, with abundant general purpose I/O port.
STM32F103 series microprocessors main resource and feature are as follows：
（1）Up to 51 quick I/O ports, all I/O mouthfuls can be with image to 16 external interrupts, and nearly all port all permits
Perhaps 5V signals are inputted.Each port can be by software merit rating into output（Recommend or open-drain）, input（With or without pull-up or under
Draw）Or other peripheral functionalities mouthful.
（2）2 12 analog-digital converters, up to 16 outside input passages, switching rate is up to 1MHz, conversion range
0~36V；With double sampled and holding function；Temperature sensor has been internally embedded, can convenient measurement processor temperature value.
（3）The flexible general DMA in 7 road can manage memory to memory, equipment to memory and memory to equipment
Data transfer, without CPU it is any intervene.By DMA data can be made rapidly to move, dma controller supports loop buffer
The management in area, it is to avoid controller be transferred to up to buffering area end up when produced interruption.The peripheral hardware that it is supported includes：Regularly
Device, USART, SPI, ADC and I2C etc..
（4）Debugging mode：The 20 pin JTAG artificial debuggings and the serial single line for Cortex-M3 kernels of support standard
Debugging（SWD）Function.The debugging interface generally given tacit consent to is jtag interface.
（5）Contain abundant communication interface：Three USART asynchronous serial communication interfaces, two 12C interfaces, two SPI connect
Mouth, a CAN interface and a USB interface.
3G/4G communication modules in scheme, the EM310 wireless communication modules produced using Huawei Tech Co., Ltd are born
The two-way communication of terminal and Surveillance center is blamed, the status information of terminal is sent to Surveillance center by wireless communication module, because
This, reliably in time whether information transfer be an important step of big-dipper satellite video terminal monitor system performance.3G/4G's
Mobile communications network, with power system capacity is big, the availability of frequency spectrum is high, frequency planning is simple, be difficult to go offline, strong antijamming capability
Feature.The video image that terminal camera is collected, is carried out after the H.265 technical finesse such as coding, warp by image processing module
Local 3G/4G network transmissions, are uploaded to Surveillance center.Meanwhile, the system uses GPRS short message communication modes, terminal positioning number
Surveillance center is passed to according to the short message channel Jing Guo form conversion GPRS communication modules, Surveillance center is also through GPRS short messages
Cease channel and send command scheduling signaling to terminal.GPRS short message communication modes, possess GPRS voice modulation modes, coverage
Extensively, the big advantage of capacity, while SMS service possesses, transmission speed is fast, do not influence voice call, it is cheap the advantages of, because
This system applies its SMS（Short Message Service）It is used as the preferred manner of communication system.EM310 wireless communication modules, it has
There are standard RS232 serial line interfaces, support voice, data and short message（SMS）, and wider voltage range is adapted to, it is being
Mainly receive capabilities are sent in the design of system using its short message.Software control aspect, is carried out using AT instructions to EM310 modules
Control.
Earth's magnetic field/Big Dipper locating module in scheme, the module is the type produced by Hangzhou Zhongke Microelectronic Co., Ltd.
Number is combined development with earth's magnetic field airmanship for ATGM330B dual mode receiver module, support GPS and BD2 single system is positioned
With dual system alignment by union, in the case of the Big Dipper and GPS no signals, the positioning unit work based on geomagnetic field sensors in module
Make, using geomagnetic matching algorithm, the absolute force value of locality is calculated, to obtain current location information.
Image processing module in scheme, the module uses the model of vast (FULLHAN) the company production of Shanghai richness
FH8510 ISP process chips, insert H.265 codec unit, with powerful image processing engine, cmos image sensing
Device interface, D/A converter, No. 8 video camera serial ports, with low in energy consumption, high resolution, configuration is flexible, customize the spies such as degree height
Point.
Expansion module in scheme, the module uses the model S7-EM239 of joint-stock company of Siemens production
Expansion module, can collection voltages, electric current, millivolt, all kinds resistance and temperature, all kinds electric thermo-couple temperature, channel type
It is optionally combined, terminal is can access various kinds of sensors, it is adaptable to the different demands of every profession and trade vehicle.
Phone module in scheme, the module uses the model WT588D of Guangzhou Wei Chuan Science and Technology Ltd.s production
Stacked encapsulates speech chip, built-in 13Bit/DA converters, and 12Bit/PWM audio frequency process, it is ensured that high-quality voice is exported,
PWM outputs can push directly on 0.5W/8 Ω loudspeakers, and push-pull current is abundant, strong interference immunity.Terminal call function is broadcast with voice
Put all thus module realizations.
Acceleration sensor module in scheme, the module uses the model BMX055 velocity pick-ups of Bosch productions
Device, built-in IMU- Inertial Measurement Units provide very accurately travel speed for terminal.
Power management module in scheme, the module uses the model RN5T618 power management cores of Ricoh productions
Piece, this chip uses CMOS manufacturing process, is internally integrated up to 3 road efficient voltage reducing type DC-DC and up to 7 road LDO power supplys,
Single channel DC-DC output currents reach as high as 3A.The module integrated power supply control logic circuit, lithium cell charging module, voltage inspection
Module, overheat protector module are surveyed, while input can be provided for CPU reset, the WatchDog Timer carried inside it, greatly
Improve power-supply system application flexibility and stability.
Lightning-protection module in scheme, the module uses the JSX-POE types of Jie Sai Electronics Co., Ltd.s of Shenzhen production
Lightning-protection module, it is adaptable to which the overvoltage that control signal, data communication, computer network etc. are integrated accurately is protected, simultaneous with
The signal power source lightning protection effect of different voltage class, possess that discharge capacity is big, transmission rate is high, without leakage current, be swift in response,
The features such as reliable operation.It is module circuit diagram below.
High score satellite reception module in scheme, as shown in Figure 2 and Figure 3, this module are the GF-05-1G06X voluntarily developed
Radio frequency chip, the working frequency points MHZ of No. 5 satellite launchs of high score is received by the external GFNS active antennas of signal receiving unit,
Bandwidth MHZ G5 data signals, are converted to image information, then adopt by graphics processing unit through signal conversion unit in module
After the technical finesses such as YC separation, comb filtering method, image definition enhancing, sent images to by image output unit
Arm processor display and control unit, can watch high-definition image picture on a display screen, and instruction reception unit therein is mainly used in connecing
It is each in instruction that receipts Surveillance center issues, then by the related reaction of GF-05-1G06X processors progress.
Meanwhile, Surveillance center issues video to terminal and checks instruction, and the video data of module TXA serial ports output is by image
H.265, reason module after coding techniques processing, is sent to Surveillance center.H.265 it is that ITU-T VCEG are formulated after H.264
New video encoding standard.H.265 standard around existing video encoding standard H.264, retain original some technologies,
Technology simultaneously related to some is improved.New technology using advanced technology to improve code stream, coding quality, delay and
Relation between algorithm complex, being optimal is set.Specific research contents includes：Improve compression efficiency, improve robust
Property and error recovery capabilities, reduce real-time time delay, reduce channel acquisition time and Stochastic accessing time delay, reduction complexity etc..
H264 is transmitted due to algorithm optimization, velocity interpolation SD digital picture that can be less than 1Mbps；H265 can then realize using 1 ~
2Mbps transmission speed transmission 720P（Resolution ratio 1280*720）Common high resolution audio and video transmission.H.265 key technology is main
There is the change of HEVC in quadtree coding structure, loop filtering, entropy code, fine granularity slice piecemeals border, quadtree coding structure
Change structure and breach original transform size limitation, improve the code efficiency of large scale coding unit；Loop filtering is H.264
Block elimination filtering technical foundation on, HM models eliminate the block elimination filtering to 4*4 blocks, reduce complexity, SAO is in encoding and decoding ring
In road, after Deblock, by the classification to reconstruction image, a skew is added and subtracted to each class image pixel value, is reached
The purpose of distortion is reduced, so as to improve compression ratio, code stream is reduced；H.265 two kinds of parallel entropy code schemes are employed, improve parallel
Disposal ability, reduces the frequency requirement to decoding end chip；H.265 entropy code slice boundary demarcations not in units of LCU,
But in units of smaller CU, each slice size can be controlled accurately, while solving Rate Control and load
The problem of weighing apparatus.
At present, the image that high score satellite reception module can only be near receiving terminal in about 1 kilometer range, wherein, high score 5
Number satellite employ high spatial resolution, it is multispectral cover the key technologies such as the optical remote sensing being combined with wide, realize high score
The critical functions such as resolution earth observation, meteorology, forest fire protection.It is module circuit diagram below.
Defined below for GF-05-1G06X radio frequency chips pin：
GFNS active antennas, for receiving the image digital signal that high score satellite is collected, pass through core by No. 11 pin access chips
After piece is converted to image information and handled, exported by No. 20 pin TXA serial ports, this serial ports connection arm processor display and control unit；RXA
Serial ports is mainly used in receiving the instruction that Surveillance center is issued to terminal arm processor（Chip image parameter setting etc.）, lightning protection mould
The cut-offing instruction that arm processor is sent during block electric voltage exception, protection chip is from damaging；VANT in circuit diagram, has for basis
Source antenna power demands provide different voltages.
The operation principle of the present invention is as follows：In vehicle travel process, the Big Dipper 3G/4G based on high score satellite reception technology
Video lightning protection terminal can receive Big Dipper satellite signal computing and obtain longitude, latitude, sea by earth's magnetic field/Big Dipper locating module
The information such as degree of lifting, time, speed, direction, satellite service condition, in the case of big-dipper satellite no signal, by earth's magnetic field unit
Gather location information, accomplish it is comprehensive be accurately positioned, wherein the travel speed of vehicle is except the speed calculated by locating module
Outside degree, the recorder speed also calculated by terminal medium velocity sensor assembly；Pass through the 3G/4G communication modules in terminal, profit
The high definition for being collected positional information and image processing module, high score satellite reception module with three big operator 3G/4G networks
Transmission of video images is to Surveillance center, convenient scheduling；Surveillance center can realize the voice scheduling work(to vehicle by phone module
Energy；Built-in high score satellite reception module, can receive video image and atmospheric environment index in neighbouring 1 kilometer, disaster and occur
Index, has been significantly increased the efficiency of enforcement vehicle, and the stabilization of society is ensure that to a greater extent, is the construction of smart city
There is provided technical support；Under thunder and lightning weather condition, the video terminal passes through power management module and high performance lightning protection mould
Block, omnibearing protection product is protected from damage；In earth-magnetism navigation technical foundation, virtual gravitational field height-finding technique is used
Gravitational field built in arm processor calculates module to calculate, and the gravity of this module position is calculated first, by what is set
Program calculates the distance in present position and the earth's core（, wherein G is gravitational constant, and M is earth quality, and m attaches most importance to
Module quality is calculated in the field of force,The gravity of module position is calculated for gravitational field）, thus computational methods measure floor first layer
The R of ground plurality of positions, sets up virtual gravitational field height large database, is matched from database, takes 5 close position R
It is worth, the R differences residing for computing terminal between floor position and floor ground（5 numerical value are at least calculated, are averaged）, reflection
Onto three-dimensional map, the accurate estimation of indoor positioning floor is solved the problems, such as, its precision is better than 10cm, weight is provided for indoor positioning
The technical support wanted；In addition, according to the different demands of industry vehicle, various kinds of sensors can be accessed at termination extension module, it is real
Existing corresponding function, such as：Rotating monitoring, oil mass monitoring of trucd mixer etc..
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those skilled in the art disclosed herein technical scope in, the change that can expect without creative work or
Replace, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Fixed protection domain is defined.
Claims (2)
1. a kind of Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology, it is characterised in that：It is by ARM
Manage device（1）Power management module is connected respectively（2）, acceleration sensor module（3）, high score satellite reception module（4）, phone module
（5）, expansion module（6）, lightning-protection module（7）, 3G/4G communication modules（8）, earth's magnetic field/Big Dipper locating module（9）And image processing
Module（10）Constitute；
Described high score satellite reception module（4）It is radio frequency chip（18）Difference link order receiving unit（11）, image output
Unit（13）, signal receiving unit（14）, graphics processing unit（16）And signal conversion unit（17）, signal therein receives single
Member（14）Wireless connection active antenna（12）, image output unit（13）With arm processor（1）In display and control unit（15）Even
Connect.
2. the Big Dipper 3G/4G video lightning protection terminals as claimed in claim 1 based on high score satellite reception technology, its feature exists
In：Described arm processor（1）Using STM32F103VCT6 chips.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161203.2A CN107247283A (en) | 2017-03-17 | 2017-03-17 | Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology |
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|---|---|---|---|
| CN201710161203.2A CN107247283A (en) | 2017-03-17 | 2017-03-17 | Big Dipper 3G/4G video lightning protection terminals based on high score satellite reception technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270728A (en) * | 2018-11-30 | 2019-01-25 | 娄底市金鑫电子科技有限公司 | The high-accuracy Intelligent touch all-in-one machine of Beidou satellite navigation based on quantum glory technology |
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