CN105406895B - A kind of wireless intelligent vehicle mounted terminal based on WiFi - Google Patents
A kind of wireless intelligent vehicle mounted terminal based on WiFi Download PDFInfo
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- CN105406895B CN105406895B CN201510900592.7A CN201510900592A CN105406895B CN 105406895 B CN105406895 B CN 105406895B CN 201510900592 A CN201510900592 A CN 201510900592A CN 105406895 B CN105406895 B CN 105406895B
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- wifi
- vehicle mounted
- mounted terminal
- intelligent vehicle
- wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a kind of wireless intelligent vehicle mounted terminal based on WiFi, includes mainly WiFi antennas, WiFi module, CPU processor, core board and display equipment.Wireless intelligent vehicle mounted terminating circuit of the present invention based on WiFi is simple, practicability and effectiveness, and WiFi module is arranged on vehicle intelligent terminal, improves networking speed；The gateway information for storing WiFi network is manually operated without user and realizes automatic connection, and user experience gets a promotion；The quick connection of WiFi equipment and performance of handoffs, make WiFi network more stablize, suitable for being promoted and applied in automotive field when optimizing vehicle high-speed movement.
Description
Technical field
The present invention relates to a kind of car-mounted terminals, and in particular to a kind of wireless intelligent vehicle mounted terminal based on WiFi.
Background technology
WiFi is general in being widely used for the terminals such as router and smart mobile phone, portable computer, and based on mobile unit
The also non-extensive use of WiFi wireless networks, prevents user cannot be timely from the information for the mobile unit that timely updates, such as navigation map
Update causes navigation inaccurate, brings great inconvenience to users.Currently, user is most when car-mounted terminal realizes function of surfing the Net
Using the 3G/4G flows of user mobile network, the speed for not only expending network flow but also access internet is also slow.
Some mobile units extend the WiFi function of mobile unit by wireless router, but the WiFi of wireless router connects
It includes searching SSID, input access configuration etc. to enter operation, these operating procedures are complicated, setup time is long, therefore, wireless router
WiFi access operations it is complex for ordinary user, generally require to take a long time, to complete, to affect user
Experience.
In the prior art with WiFi function car-mounted terminal automobile advance during often occur access data broken string,
Phenomena such as packet loss, unstable data transmission, realizes the operation of function to influence many need to network in mobile unit.
Invention content
Defect based on the prior art, the present invention provide a kind of wireless intelligent vehicle mounted terminal based on WiFi, include at least
WiFi antennas, WiFi module, CPU processor, core board and display equipment.The WiFi module includes at least：π shape filtered electricals
Road, radio transmitting and receiving chip, power module, USB units；The WiFi module further includes power amplifier, low-pass filter, band
Bandpass filter, low noise amplifier.
The π shapes filter circuit, power module, USB units are connect with the radio transmitting and receiving chip respectively, and the power is put
Big device, low-pass filter, bandpass filter, low noise amplifier are also connect with the radio transmitting and receiving chip, the π shapes filtered electrical
Road connects WiFi antennas, and the USB units are connected with the CPU processor, the CPU processor and the core board phase
Even, the display equipment is arranged based on the core board.The CPU processor stores the user name password of user's WiFi network
Etc. information, keep the connection of WiFi more convenient, the user experience is improved.
In addition, the wireless intelligent vehicle mounted terminal based on WiFi also includes a velocity sensor and microprocessing unit
MCU, the velocity sensor and microprocessing unit MCU establish communication connection, are passed when the microprocessing unit MCU receives speed
After the information that sensor is sent, whether identification automobile is kept in motion, when automobile is kept in motion, the microprocessing unit
MCU sends to the CPU and instructs, and CPU enters the WiFi patterns under high speed travel condition.WiFi under the high speed travel condition
Pattern is to increase the rate of WiFi, reduces the interval time of WiFi scannings.
The rate of the WiFi is 300~600Mpbs, and the interval time of WiFi scannings is 0.2~0.8s.
Preferably, the rate of the WiFi is 350~500Mpbs, and the interval time of WiFi scannings is 0.3~0.6s.
It is further preferred that the rate of the WiFi is 420Mpbs, the interval time of WiFi scannings is 0.5s.
The optimal technical scheme of the present invention is that the composition of the power module is as follows, the output end connection one of power supply
A magnetic bead, setting are connected with the electrolytic capacitor of 220 μ F, then three ceramic disc capacitors in parallel, specification be followed successively by 22 μ F, 0.1 μ F,
1000 μ F, it is therefore an objective to promote power source performance, filter out the AC wave of different frequency.
The magnetic bead specification is FB600/0.5A.
Optionally, the wireless intelligent vehicle mounted terminal based on WiFi includes also a static memory, for storing city
City's Wi-Fi hotspot information, the static memory are connect with the radio transmitting and receiving chip, the wireless intelligent vehicle based on WiFi
City Wi-Fi hotspot is connected automatically when can not be with WiFi wireless networks after mounted terminal is opened, in range.
Further, the WiFi patterns under the high speed travel condition are the microprocessing unit MCU automatic identification distances
Nearest city Wi-Fi hotspot, and in time from the static memory recalls information, so that the radio transmitting and receiving chip is established newly
Connection, in old connection and the new gap connecting, the CPU caches information to protect stored continuity, institute
It states the wireless intelligent vehicle mounted terminal based on WiFi and establishes the time of connection within 1s with city Wi-Fi hotspot.
The present invention provides a kind of workflow of the wireless intelligent vehicle mounted terminal based on WiFi, specially：Described WiFi days
The wireless signal that bundle of lines receives is sent to the radio transmitting and receiving chip of WiFi module, the radio transmitting and receiving chip to signal at
USB units are exported after reason, and send information to CPU processor.The signal received is carried out integration processing by the CPU processor
After be sent to core board, realize the wireless networking capabilities of intelligent vehicle mounted terminal.The present invention uses the wireless receiving and dispatching of WiFi module
Chip is communicated by USB units and CPU processor, and circuit is simple, practicability and effectiveness.
Wireless intelligent vehicle mounted terminal of the present invention based on WiFi is provided with WiFi module on vehicle intelligent terminal
With WiFi antennas, the 3G/4G flows of the mobile network of user are not expended, and also improve networking speed, and car owner user is made to exist
It is more powerful using amusement function when intelligent vehicle mounted terminal.
The CPU processor of wireless intelligent vehicle mounted terminal of the present invention based on WiFi stores user's WiFi network
The information such as user name password keep the connection of WiFi more convenient；The static memory is stored with city Wi-Fi hotspot information,
It can be not necessarily to manual operation and connect city Wi-Fi hotspot automatically, the user experience is improved.
Wireless intelligent vehicle mounted terminal of the present invention based on WiFi optimizes vehicle-mounted WiFi in high speed travel condition and sets
Standby quick connection and performance of handoffs, reduce the broken string number and packet loss of data transmission, so that WiFi network is more stablized, more
Add and is suitable for vehicle environment.
Description of the drawings
Fig. 1 is the signal flow graph of the present invention,
Fig. 2 is the circuit diagram of the embodiment of the present invention 1.
Wherein, the meaning that figure label indicates is as follows：
1, WiFi antennas, 2, π shape filter circuits, 3, radio transmitting and receiving chip, 4, power module, 5, CPU processor, 6, USB
Unit.
Specific implementation mode
Below by specific embodiment, further technical scheme of the present invention is specifically described.It should be understood that below
Embodiment be intended only as illustrating, and do not limit the scope of the invention, while those skilled in the art is according to the present invention
The obvious change and modification made are also contained within the scope of the invention.
Embodiment 1
A kind of wireless intelligent vehicle mounted terminal based on WiFi as depicted in figs. 1 and 2, including WiFi antennas 1, WiFi moulds
Block, CPU processor 5, core board and display equipment.The WiFi module includes：π shapes filter circuit 2, radio transmitting and receiving chip 3, electricity
Source module 4, USB units 6.
The π shapes filter circuit 2, power module 4, USB units 6 are connect with the radio transmitting and receiving chip respectively, the π shapes
Filter circuit 2 connects WiFi antennas 1, and the USB units 6 are connected with the CPU processor 5, the CPU processor 5 and institute
It states core board to be connected, the display equipment is arranged based on the core board.The CPU processor 5 stores user's WiFi network
The information such as user name password, keep the connection of WiFi more convenient, the user experience is improved.
In addition, the wireless intelligent vehicle mounted terminal based on WiFi also includes a velocity sensor and microprocessing unit
MCU, the velocity sensor and microprocessing unit MCU establish communication connection, are passed when the microprocessing unit MCU receives speed
After the information that sensor is sent, whether identification automobile is kept in motion, when automobile is kept in motion, the microprocessing unit
MCU sends to the CPU and instructs, and CPU enters the WiFi patterns under high speed travel condition.WiFi under the high speed travel condition
Pattern is to increase the rate of WiFi, reduces the interval time of WiFi scannings.
The rate of the WiFi is 300~600Mpbs, and the interval time of WiFi scannings is 0.2~0.8s.
Fig. 1 is the workflow of the wireless intelligent vehicle mounted terminal based on WiFi, specially：The WiFi antennas 1 are reception
To wireless signal be sent to the radio transmitting and receiving chip 3 of WiFi module, radio transmitting and receiving chip 3 exports after handling signal
USB units 6, and send information to CPU processor 5.The signal that the CPU processor 5 receives is sent out after carrying out integration processing
It send to core board, realizes the wireless networking capabilities of intelligent vehicle mounted terminal.The present invention uses the radio transmitting and receiving chip 3 of WiFi module
It is communicated by USB units 6 and CPU processor 5, circuit is simple, practicability and effectiveness.
Embodiment 2
A kind of wireless intelligent vehicle mounted terminal based on WiFi, including WiFi antennas, WiFi module, CPU processor, core board
And display equipment.The WiFi module includes：π shapes filter circuit, radio transmitting and receiving chip, power module, USB units, power are put
Big device, low-pass filter, bandpass filter, low noise amplifier.
It is the π shapes filter circuit, power module, USB units, power amplifier, low-pass filter, bandpass filter, low
Noise Amplifier is connect with the radio transmitting and receiving chip respectively, and the π shapes filter circuit connects WiFi antennas, the USB units
It is connected with the CPU processor, the CPU processor is connected with the core board, and the display equipment is based on the core
Plate is arranged.In addition, the wireless intelligent vehicle mounted terminal based on WiFi also includes a velocity sensor and microprocessing unit
MCU, the velocity sensor and microprocessing unit MCU establish communication connection, are passed when the microprocessing unit MCU receives speed
After the information that sensor is sent, whether identification automobile is kept in motion, when automobile is kept in motion, the microprocessing unit
MCU sends to the CPU and instructs, and CPU enters the WiFi patterns under high speed travel condition.WiFi under the high speed travel condition
Pattern is to increase the rate of WiFi, reduces the interval time of WiFi scannings.The rate of the WiFi is 350~500Mpbs,
The interval time of WiFi scannings is 0.3~0.6s.
The composition of the power module is as follows, and the output end of power supply connects the magnetic bead of a FB600/0.5A, setting connection
There is the electrolytic capacitor of 220 μ F, then three ceramic disc capacitors in parallel, specification are followed successively by 22 μ F, 0.1 μ F, 1000 μ F, it is therefore an objective in vapour
Car promotes power source performance, filters out the AC wave of different frequency.
Claims (3)
1. a kind of workflow of the wireless intelligent vehicle mounted terminal based on WiFi, it is characterised in that：It is described based on the wireless of WiFi
Intelligent vehicle mounted terminal includes at least WiFi antennas, WiFi module, CPU processor, core board and display equipment；
The WiFi module includes at least：π shapes filter circuit, radio transmitting and receiving chip, power module, USB units；The WiFi moulds
Block further includes power amplifier, low-pass filter, bandpass filter, low noise amplifier；
The π shapes filter circuit, power module, USB units are connect with the radio transmitting and receiving chip respectively, the power amplification
Device, low-pass filter, bandpass filter, low noise amplifier are also connect with the radio transmitting and receiving chip, the π shapes filter circuit
WiFi antennas are connected, the USB units are connected with the CPU processor, and the CPU processor is connected with the core board,
The display equipment is arranged based on the core board；The CPU processor stores the user name message in cipher of user's WiFi network
Breath；Also,
The wireless intelligent vehicle mounted terminal based on WiFi also includes a velocity sensor and microprocessing unit MCU, the speed
It spends sensor and microprocessing unit MCU establishes communication connection, when the microprocessing unit MCU receives velocity sensor transmission
After information, whether identification automobile is kept in motion, and when automobile is kept in motion, the microprocessing unit MCU is to described
CPU sends instruction, and CPU enters the WiFi patterns under high speed travel condition；WiFi patterns under the high speed travel condition are to increase
Add the rate of WiFi, reduces the interval time of WiFi scannings；The rate of the WiFi is 300~600Mpbs, between WiFi scannings
It is 0.2~0.8s every the time；
The composition of the power module is as follows, and the output end of power supply connects a magnetic bead, and setting is connected with the electrolysis electricity of 220 μ F
Hold, then three ceramic disc capacitors in parallel, specification are followed successively by 22 μ F, 0.1 μ F, 1000 μ F；The magnetic bead specification is FB600/0.5A；
The wireless intelligent vehicle mounted terminal based on WiFi also includes a static memory, for storing city Wi-Fi hotspot letter
Breath, the static memory are connect with the radio transmitting and receiving chip, after the wireless intelligent vehicle mounted terminal based on WiFi is opened,
City Wi-Fi hotspot is connected automatically when can not be with WiFi wireless networks in range；
WiFi patterns under the high speed travel condition are that the microprocessing unit MCU automatic identifications are apart from nearest city
Wi-Fi hotspot, and in time from the static memory recalls information, so that the radio transmitting and receiving chip establishes new connection, old
There are connection and the new gap connecting, the CPU caches information to protect stored continuity, described based on WiFi's
Wireless intelligent vehicle mounted terminal establishes the time of connection within 1s with city Wi-Fi hotspot；
Detailed process is：The wireless signal that the WiFi days bundle of lines receive is sent to the radio transmitting and receiving chip of WiFi module, nothing
Line transceiving chip exports USB units after handling signal, and sends information to CPU processor；The CPU processor handle connects
The signal received is sent to core board after carrying out integration processing, realizes the wireless networking capabilities of intelligent vehicle mounted terminal.
2. the workflow of the wireless intelligent vehicle mounted terminal based on WiFi according to claim 1, it is characterised in that：It is described
The rate of WiFi is 350~500Mpbs, and the interval time of WiFi scannings is 0.3~0.6s.
3. the workflow of the wireless intelligent vehicle mounted terminal based on WiFi according to claim 1, it is characterised in that：It is described
The rate of WiFi is 420Mpbs, and the interval time of WiFi scannings is 0.5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900592.7A CN105406895B (en) | 2015-12-09 | 2015-12-09 | A kind of wireless intelligent vehicle mounted terminal based on WiFi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900592.7A CN105406895B (en) | 2015-12-09 | 2015-12-09 | A kind of wireless intelligent vehicle mounted terminal based on WiFi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406895A CN105406895A (en) | 2016-03-16 |
| CN105406895B true CN105406895B (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510900592.7A Active CN105406895B (en) | 2015-12-09 | 2015-12-09 | A kind of wireless intelligent vehicle mounted terminal based on WiFi |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111510094A (en) * | 2020-04-14 | 2020-08-07 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Suppression method and system based on anti-serial port electromagnetic leakage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220012A (en) * | 2013-05-08 | 2013-07-24 | 四川省艾普网络股份有限公司 | WIFI (Wireless Fidelity) module |
| CN103458440A (en) * | 2013-08-29 | 2013-12-18 | 惠州Tcl移动通信有限公司 | Method and mobile terminal for adjusting WIFI scanning frequency based on motion state |
| CN204555986U (en) * | 2015-02-07 | 2015-08-12 | 苏州长风航空电子有限公司 | Multi-functional vehicle-mounted navigator |
| CN205377866U (en) * | 2015-12-09 | 2016-07-06 | 江苏天安智联科技股份有限公司 | Wireless Intelligence automobile -mounted terminal based on wiFi |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347312A (en) * | 2013-06-28 | 2013-10-09 | 成都众易通科技有限公司 | Vehicle-mounted terminal with wireless networking function |
-
2015
- 2015-12-09 CN CN201510900592.7A patent/CN105406895B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220012A (en) * | 2013-05-08 | 2013-07-24 | 四川省艾普网络股份有限公司 | WIFI (Wireless Fidelity) module |
| CN103458440A (en) * | 2013-08-29 | 2013-12-18 | 惠州Tcl移动通信有限公司 | Method and mobile terminal for adjusting WIFI scanning frequency based on motion state |
| CN204555986U (en) * | 2015-02-07 | 2015-08-12 | 苏州长风航空电子有限公司 | Multi-functional vehicle-mounted navigator |
| CN205377866U (en) * | 2015-12-09 | 2016-07-06 | 江苏天安智联科技股份有限公司 | Wireless Intelligence automobile -mounted terminal based on wiFi |
Non-Patent Citations (1)
| Title |
|---|
| RTL8188EUS低功耗小体积无线智能串口模块;Jvor900;《百度文库https://wenku.baidu.com/view/d94bc04528ea81c759f5785a.html》;20150810;第1-9页 * |
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| CN105406895A (en) | 2016-03-16 |
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