CN106357760A - ZigBee-based vehicular wireless safety communication system - Google Patents
ZigBee-based vehicular wireless safety communication system Download PDFInfo
- Publication number
- CN106357760A CN106357760A CN201610822412.2A CN201610822412A CN106357760A CN 106357760 A CN106357760 A CN 106357760A CN 201610822412 A CN201610822412 A CN 201610822412A CN 106357760 A CN106357760 A CN 106357760A
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- Prior art keywords
- module
- zigbee
- outfan
- communication system
- circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a ZigBee-based vehicular wireless safety communication system, comprising a ZigBee safety control module and a radio frequency monitor module; the ZigBee safety control module comprises a low-frequency detection module, the input end of the low-frequency detection module is connected with a wireless communication unit, the output end of the low-frequency detection module is connected with a power management module, the radio frequency monitor module comprises a core control board, the output end of an SPI port is connected with a data acquisition card, the data acquisition card comprises an RFID (radio frequency identification) antenna that is fitted with a wireless control circuit, the output end of the wireless control circuit exchanges information with the ZigBee safety control module, and the output end of the data acquisition card exchanges data with the radio frequency monitor module, therefore, the modules are packaged and are also easily applicable to a baseplate of a vehicular device, and automatic networked communication in close range can be achieved between the vehicular modules and a module arranged on roadside.
Description
Technical field
The present invention relates to wireless security art communication systems field, specially a kind of onboard wireless safety based on zigbee
Communication system.
Background technology
Generally existing problems with the traffic of current city: traffic congestion, vehicle accident, parking facility imbalance between supply and demand are dashed forward
Go out, buses and tax services supervision level are not high, automobile traffic induction information can not effectively transmit, traffic information monitoring
Dynamics deficiency etc., these problems comprehensive, it is primarily due to vehicle driver and what deficiency caused is controlled to environment information, wherein
Problem great majority can be avoided by the interacting instant information between vehicle and its travel or mitigate, and such as, pass through
Vehicle intelligent communication equipment and roadside communication apparatus communication, driver has known that road ahead gets congestion in advance, then this car can
Unobstructed road can be selected to be detoured, thus avoiding being further exacerbated by of traffic congestion, for these problems, build a collection of base
In the intelligent transportation system of technology of Internet of things, dispose the radio communication biography that a large amount of in-vehicle wireless communication sensing nodes and roadside are fixed
Sense node, by the short-distance wireless communication of roadside node and vehicle-mounted mobile node, can accurately and in time by region road conditions,
The information such as traffic are collected and issue, and enable a driver to comprehensively, immediately obtain traffic, and selection driving is tactful, right
City manager formulates road induction strategies, and one wisdom of structure, harmonious traffic trip environment are significant.
But from the point of view of comprehensive research and development present situation both at home and abroad, class in-vehicle wireless communications device is in worldwide internal standard not
One, and equipment price is high, for meeting the non-parking charge scheme in different regions section, driver generally requires to install different cars
Carry device end, this promotes for system has very big obstruction.This problem is equally existed based on the mobile unit terminal of operator.
In the scheme putting into application, there are two large problems: one is using effect, if there is the blind of signal in remoter place
Area, onboard system will be unable to send location information；Two is costly, and annual public transport company must pay huge to telecommunications company
Information flow-rate expense.
Content of the invention
For problem above, the invention provides a kind of onboard wireless safe communication system based on zigbee, with
Cc2530 as communication core, is responsible for wake-up trigger and the radio communication of whole module, by the use of safety chip z32d1024 as
Data core, processes storage service data, carries out encryption and decryption process etc., and the novel plug of the double mcu collaborative work of setting, by mould
The mode of massing, externally provides standardized hardware interface, has high cohesion in software aspects, can be with effectively solving background skill
Problem in art.
For achieving the above object, the present invention provides following technical scheme: a kind of onboard wireless based on zigbee is logical safely
Letter system, including zigbee safety control module and radio frequency monitoring module, described zigbee safety control module and radio frequency monitoring
It is connected with spi interface, described zigbee safety control module includes low frequency detection module, described low between the communication link of module
The input of frequency detection module is connected with wireless communication unit, and the outfan of low frequency detection module is connected with power management module；
Described radio frequency monitoring module includes core control panel, and core control panel is built-in with iic interface, the input of described core control panel
It is connected with remote measurement Transmit-Receive Unit, core control panel is also associated with human-computer interaction device；The outfan of described spi interface is connected with number
According to capture card, described data collecting card includes rfid antenna, and described rfid antenna is provided with radio control circuit, described wireless
The outfan of control circuit and zigbee safety control module enter row information exchange, the output degree of described data collecting card and radio frequency
Monitoring module carries out data exchange.
As a kind of preferred technical scheme of the present invention, described low frequency detection module includes main control chip, described master control core
Piece adopts the process chip of as3933 series, and the input of main control chip is connected with signal conditioning circuit, described main control chip
Outfan be connected with waveform detection module.
As a kind of preferred technical scheme of the present invention, described wireless communication unit includes signal deteching circuit and modulatedemodulate
Adjust device, described signal deteching circuit is connected with encoder with the input of modem, described signal deteching circuit defeated
Go out end and be connected with signal amplifier.
As a kind of preferred technical scheme of the present invention, described power management module includes mu balanced circuit, power governor
And rectification circuit, the input of described mu balanced circuit and rectification circuit is connected with comparison amplifier, described power governor defeated
Go out end to be connected with the input of comparison amplifier.
As a kind of preferred technical scheme of the present invention, described remote measurement Transmit-Receive Unit includes rfid module for reading and writing and network is joined
Put device, the outfan of described network configurator is connected with wireless signal transceiver, described rfid module for reading and writing is additionally provided with
Rs485 serial communication modular.
As a kind of preferred technical scheme of the present invention, described human-computer interaction device includes liquid crystal touch screen and Voice command
Device, is also associated with level translator between described liquid crystal touch screen and voice operated controlss, the outfan of described level translator leads to
Module of overdriving is connected with voice signal synthesizer.
As a kind of preferred technical scheme of the present invention, the input of described radio control circuit is connected with demodulator of PM signal PM
Connect.
As a kind of preferred technical scheme of the present invention, described spi interface is also associated with minisize pick-up head and gps positioning
Device, the outfan of described minisize pick-up head is connected with data storage, and described gps localizer adopts gs-96h2hx8222 series
Chip, and the outfan of gps localizer data memorizer is all connected to the data input pin of interactive database.
Compared with prior art, the invention has the beneficial effects as follows: should onboard wireless safe communication system based on zigbee,
Using cc2530 as communication core, it is responsible for wake-up trigger and the radio communication of whole module, is made using safety chip z32d1024
For data core, process storage service data, carry out encryption and decryption process etc., the novel plug of the double mcu collaborative work of setting, two
Communicated using spi interface between mcu, wherein radio frequency chip cc2530 is as spi master control, safety chip z32d1024 conduct
From control, the chip of the two Collaborative Control peripheral applications, all outwards leave expansion interface simultaneously, by modular mode, right
Outer offer standardized hardware interface, in software aspects, there is high cohesion, enable node faster more stable carry out networking
Communication.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is electrical block diagram of the present invention.
In figure: 1-zigbee safety control module；2- radio frequency monitoring module；3-spi interface；4- low frequency detection module；5-
Wireless communication unit；6- power management module；7- core control panel；8- remote measurement Transmit-Receive Unit；9- human-computer interaction device；10-
Rfid antenna；11- radio control circuit；12- data collecting card；13- main control chip；14- signal conditioning circuit；15- waveform is examined
Survey module；16- signal deteching circuit；17- modem；18- signal amplifier；19- encoder；20- mu balanced circuit；21-
Power governor；22- rectification circuit；23- comparison amplifier；24-iic interface；25-rfid module for reading and writing；26- network configuration
Device；27- wireless signal transceiver；28-rs485 serial communication modular；29- liquid crystal touch screen；30- voice operated controlss；31- level
Transducer；32- drive module；33- voice signal synthesizer；34- demodulator of PM signal PM；35- minisize pick-up head；36-gps positions
Device；37- data storage；38- interactive database；39-gps localizer.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment:
Refer to Fig. 1 and Fig. 2, the present invention provides a kind of technical scheme: a kind of onboard wireless based on zigbee is logical safely
Letter system, including zigbee safety control module 1 and radio frequency monitoring module 2, described zigbee safety control module 1 and radio frequency are supervised
It is connected with spi interface 3, described spi interface 3 is also associated with minisize pick-up head 35 and gps positioning between the communication link of control module 2
Device 36, the outfan of described minisize pick-up head 35 is connected with data storage 37, and described gps localizer 36 adopts gs-
96h2hx8222 family chip, and the outfan of gps localizer 36 data memorizer 37 is all connected to interactive database 38
Data input pin, described zigbee safety control module 1 includes low frequency detection module 4, and described low frequency detection module 4 includes leading
Control chip 13, described main control chip 13 adopts the process chip of as3933 series, and the input of main control chip (13) is connected with
Signal conditioning circuit 14, the outfan of described main control chip 13 is connected with waveform detection module 15, described low frequency detection module 4
Input be connected with wireless communication unit 5, described wireless communication unit 5 includes signal deteching circuit 16 and modem
17, described signal deteching circuit 16 is connected with encoder 19 with the input of modem 17, described signal deteching circuit
16 outfan is connected with signal amplifier 18, and the outfan of low frequency detection module 4 is connected with power management module 6, described electricity
Source control module 6 includes mu balanced circuit 20, power governor 21 and rectification circuit 22, described mu balanced circuit 20 and rectification circuit 22
Input be connected with comparison amplifier 23, the outfan of described power governor 21 is connected with the input of comparison amplifier 23
Connect；Described radio frequency monitoring module 2 includes core control panel 7, and core control panel 7 is built-in with iic interface 24, described core control panel
7 input is connected with remote measurement Transmit-Receive Unit 8, and described remote measurement Transmit-Receive Unit 8 includes rfid module for reading and writing 25 and network configurator
26, the outfan of described network configurator 26 is connected with wireless signal transceiver 27, and described rfid module for reading and writing 25 also sets up
There is rs485 serial communication modular 28, core control panel 7 is also associated with human-computer interaction device 9, described human-computer interaction device 9 includes
Liquid crystal touch screen 29 and voice operated controlss 30, are also associated with level conversion between described liquid crystal touch screen 29 and voice operated controlss 30
Device 31, the outfan of described level translator 31 is connected with voice signal synthesizer 33 by drive module 32；Described spi connects
The outfan of mouth 3 is connected with data collecting card 12, and described data collecting card 12 includes rfid antenna 10, on described rfid antenna 10
Radio control circuit 11 is installed, the input of described radio control circuit 11 is connected with demodulator of PM signal PM 34, described wireless
The outfan of control circuit 11 and zigbee safety control module 1 enter row information and exchange, the output degree of described data collecting card 12
Carry out data exchange with radio frequency monitoring module 2.
(1) with cc2530, z32d1024 chip for double mcu cores, the two passes through described onboard wireless secure communication module
Spi bus collaborative work, intercommunication, the iic bus marco power management mould that wherein radio frequency chip cc2530 is simulated by i/o
Kuai tri- road ldo exports, and security module chip z32d1024 is communicated with rfid module by spi bus, by scc interface and use
Communicated in the point of sales terminal secure access module reading rfid function, this outer mold piece also has other physical interfaces as debugged
Serial ports, i/o etc. reserve, and module has also externally reserved multiple physical interfaces of cc2530, z32d1024 and i/o so that mould
Block had both had packaging effects, was easy to use on the base plate of mobile unit again, disclosure satisfy that vehicle module and the mould being arranged in roadside
Block, automatic network-building communication in the case that distance is close, vehicle module can be managed independently power consumption and be read and write conduct simultaneously
The 13.56m radio-frequency card of rfid or the function that such card is deducted fees.
The operation principle of the present invention: be somebody's turn to do the onboard wireless safe communication system based on zigbee, using cc2530 as communication
Core, is responsible for wake-up trigger and the radio communication of whole module, by the use of safety chip z32d1024 as data core, process is deposited
Store up business datum, carry out encryption and decryption process etc., the novel plug of the double mcu collaborative works of setting, connect using spi between two mcu
Mouth is communicated, and as spi master control, as from control, the two works in coordination with control to safety chip z32d1024 to wherein radio frequency chip cc2530
The chip of peripheral applications processed, all outwards leaves expansion interface simultaneously, by modular mode, externally provides standardized hard
Part interface, has high cohesion in software aspects, enable node faster more stable carry out group-net communication.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of onboard wireless safe communication system based on zigbee, including zigbee safety control module (1) and radio frequency prison
Control module (2), is connected with spi between described zigbee safety control module (1) and the communication link of radio frequency monitoring module (2) and connects
Mouthful (3) it is characterised in that: described zigbee safety control module (1) includes low frequency detection module (4), and described low frequency detects mould
The input of block (4) is connected with wireless communication unit (5), and the outfan of low frequency detection module (4) is connected with power management module
(6)；Described radio frequency monitoring module (2) includes core control panel (7), and core control panel (7) is built-in with iic interface (24), described
The input of core control panel (7) is connected with remote measurement Transmit-Receive Unit (8), and core control panel (7) is also associated with human-computer interaction device
(9)；The outfan of described spi interface (3) is connected with data collecting card (12), and described data collecting card (12) includes rfid antenna
(10), described rfid antenna (10) is provided with radio control circuit (11), the outfan of described radio control circuit (11) with
Zigbee safety control module (1) enters row information exchange, the output degree of described data collecting card (12) and radio frequency monitoring module (2)
Carry out data exchange.
2. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Low frequency detection module (4) includes main control chip (13), and described main control chip (13) adopts the process chip of as3933 series, and main
The input of control chip (13) is connected with signal conditioning circuit (14), the outfan of described main control chip (13) and waveforms detection mould
Block (15) is connected.
3. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Wireless communication unit (5) includes signal deteching circuit (16) and modem (17), described signal deteching circuit (16) and tune
The input of modulator-demodulator (17) is connected with encoder (19), and the outfan of described signal deteching circuit (16) is connected with signal
Amplifier (18).
4. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Power management module (6) includes mu balanced circuit (20), power governor (21) and rectification circuit (22), described mu balanced circuit (20)
It is connected with comparison amplifier (23) with the input of rectification circuit (22), the outfan of described power governor (21) is put with comparing
The input of big device (23) is connected.
5. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Remote measurement Transmit-Receive Unit (8) includes rfid module for reading and writing (25) and network configurator (26), the output of described network configurator (26)
End is connected with wireless signal transceiver (27), and described rfid module for reading and writing (25) is additionally provided with rs485 serial communication modular
(28).
6. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Human-computer interaction device (9) includes liquid crystal touch screen (29) and voice operated controlss (30), described liquid crystal touch screen (29) and voice control
It is also associated with level translator (31), the outfan of described level translator (31) passes through drive module (32) between device (30) processed
It is connected with voice signal synthesizer (33).
7. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
The input of radio control circuit (11) is connected with demodulator of PM signal PM (34).
8. a kind of onboard wireless safe communication system based on zigbee according to claim 1 it is characterised in that: described
Spi interface (3) is also associated with minisize pick-up head (35) and gps localizer (36), and the outfan of described minisize pick-up head (35) is even
It is connected to data storage (37), described gps localizer (36) adopts gs-96h2hx8222 family chip, and gps localizer (36)
The outfan of data memorizer (37) is all connected to the data input pin of interactive database (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822412.2A CN106357760A (en) | 2016-09-14 | 2016-09-14 | ZigBee-based vehicular wireless safety communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822412.2A CN106357760A (en) | 2016-09-14 | 2016-09-14 | ZigBee-based vehicular wireless safety communication system |
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| Publication Number | Publication Date |
|---|---|
| CN106357760A true CN106357760A (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610822412.2A Pending CN106357760A (en) | 2016-09-14 | 2016-09-14 | ZigBee-based vehicular wireless safety communication system |
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| CN (1) | CN106357760A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370743A (en) * | 2017-08-01 | 2017-11-21 | 华南理工大学 | For the detection of the malice wooden horse of altered data bag and defence method on many-core chip |
| CN107884628A (en) * | 2017-12-11 | 2018-04-06 | 中车青岛四方机车车辆股份有限公司 | A kind of measurement apparatus and rail vehicle of rail vehicle low frequency electromagnetic field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107370743A (en) * | 2017-08-01 | 2017-11-21 | 华南理工大学 | For the detection of the malice wooden horse of altered data bag and defence method on many-core chip |
| CN107370743B (en) * | 2017-08-01 | 2019-08-20 | 华南理工大学 | For the detection of the malice wooden horse of altered data packet and defence method on many-core chip |
| CN107884628A (en) * | 2017-12-11 | 2018-04-06 | 中车青岛四方机车车辆股份有限公司 | A kind of measurement apparatus and rail vehicle of rail vehicle low frequency electromagnetic field |
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Application publication date: 20170125 |