CN106998348A - A kind of parking position data transmission system based on wireless serial cascade network - Google Patents

A kind of parking position data transmission system based on wireless serial cascade network Download PDF

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Publication number
CN106998348A
CN106998348A CN201610073569.XA CN201610073569A CN106998348A CN 106998348 A CN106998348 A CN 106998348A CN 201610073569 A CN201610073569 A CN 201610073569A CN 106998348 A CN106998348 A CN 106998348A
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CN
China
Prior art keywords
data
network
frame
wireless serial
slave
Prior art date
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Pending
Application number
CN201610073569.XA
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Chinese (zh)
Inventor
方爱国
庄淼清
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Anhui Force Network Technology Co Ltd
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Anhui Force Network Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Force Network Technology Co Ltd filed Critical Anhui Force Network Technology Co Ltd
Priority to CN201610073569.XA priority Critical patent/CN106998348A/en
Publication of CN106998348A publication Critical patent/CN106998348A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • 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
    • H04W84/20—Master-slave selection or change arrangements

Abstract

The invention belongs to wireless serial field of communication, more particularly to a kind of parking position data transmission system based on wireless serial cascade network.Module is set up including data framing protocol module and Local Area Network, it is characterised in that：Described data framing protocol module is used for main frame and slave data forwarding communicates, and Local Area Network, which sets up module, is used for host detection and connection slave, and tree-shaped topology network is set up automatically.The present invention realizes reliable communication under complex environment, and cost is low, and communication efficiency is good.

Description

A kind of parking position data transmission system based on wireless serial cascade network
Technical field
Patent of the present invention belongs to wireless serial field of communication, more particularly to a kind of based on wireless serial cascade network Parking position data transmission system.
Background technology
Wireless serial is simple because of its communication protocol, and cost is low, is widely used in the features such as small power consumption various needing channel radio In the system of letter.Existing wireless serial networking technology is usually point-to-point, or simple principal and subordinate's radio network.Such as《It is based on NRF905 wireless serial communication system》The wireless serial communication of middle realization, its structure is point-to-point, is built using wireless chip Vertical wireless channel instead of the wire message way of common Serial Port Line.Also a kind of network general principle, a host computer control it is N number of from Machine, host broadcast sends the data frame with address field, and each slave directly can receive data frame from main frame, check appropriate address Whether domain and slave the machine address coincide, then decide whether to respond Host Command.
Above-mentioned wireless serial networking technology is although easy to use, but its data protocol and data frame distribution mechanisms are determined Its reliable communication being difficult to ensure that under complex environment between module is determined.Such as, for simple principal and subordinate's radio network, big Type, have the parking lot of many pillars, walls block, if between main frame and slave due to reflection of electromagnetic wave the problems such as can not phase Signal mutually is received, reliable wireless channel now can not be just set up between slave, the transmitting of data also can not be just realized. The limitation of electromagnetic transmission environment result in existing networking technology and be difficult to effectively be applied in complex environment indoors.
Patent of invention content
The patent of the present invention technical problem to be solved is to provide a kind of parking position data based on wireless serial cascade network Transmission system, solves the problem of simple networking of wireless serial is difficult to reliable communication under complex indoor environment.
In order to solve the above technical problems, patent of the present invention uses the technical scheme to be：One kind is based on wireless serial cascaded series The parking position data transmission system of net, including data framing protocol module and Local Area Network set up module, described data frame Protocol module is used for main frame and slave data forwarding communicates, and Local Area Network, which sets up module, is used for host detection and connection slave, from It is dynamic to set up tree-shaped topology network.
Described data framing protocol module includes：
Frame head：By character "<" composition, represent the beginning of a communication frame；
Destination device address：It is made up of 3 bytes, extension number is indicated in a network；
Functional identity：It is made up of 3 bytes, for distinguishing different orders；
Forward grade：For indicating level that data frame is residing in tree network forwarding；
Forwarding address domain：Be data from the address for being issued to all slaves passed through in order on RX path, with forwarding grade Coordinate, allow slave by address determine how processing data frame；
Data bulk：Represent the byte number of data in data field；
Data field：Deposit the data to be transmitted；
Check code：For error detection；
Postamble：It is made up of character " # ", represents the end of a communication frame.
Described Local Area Network sets up module by sending data frame, allow main frame searched for when initialization each from Machine, according to search result, sets up tree network, network connection data is stored automatically, sends instruction all each time later Sent according to the network path set up.
The beneficial effect of patent of the present invention：
（1）Reliable communication is realized under complex environment；
（2）Cost is low, and communication efficiency is good.
Brief description of the drawings
Fig. 1 is tree network topology structural representation
Embodiment
Patent of the present invention is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of parking position data transmission system based on wireless serial cascade network, including data framing protocol module and Local Area Network sets up module, and described data framing protocol module is used for main frame and slave data forwarding communicates, and Local Area Network is set up Module is used for host detection and connection slave, and tree-shaped topology network is set up automatically.
Described data framing protocol module includes：
Special data frame module：Table specific as follows
Frame head Destination device address Functional identity Forward grade Forwarding address domain Data bulk Data field Check code Postamble
>(1byte) 3 byte 3 byte 1 byte 15 byte 3 byte N byte 1 byte #(1byte)
Frame head：By character "<" composition, represent the beginning of a communication frame；
Destination device address：It is made up of 3 bytes, extension number is indicated in a network；
Functional identity：It is made up of 3 bytes, for distinguishing different orders；
Forward grade：For indicating level that data frame is residing in tree network forwarding；
Forwarding address domain：Be data from the address for being issued to all slaves passed through in order on RX path, with forwarding grade Coordinate, allow slave by address determine how processing data frame；
Data bulk：Represent the byte number of data in data field；
Data field：Deposit the data to be transmitted；
Check code：For error detection；
Postamble：It is made up of character " # ", represents the end of a communication frame.
Described Local Area Network sets up module by sending data frame, allow main frame searched for when initialization each from Machine, according to search result, sets up tree network, network connection data is stored automatically, sends instruction all each time later Sent according to the network path set up.

Claims (3)

1. a kind of parking position data transmission system based on wireless serial cascade network, including data framing protocol module and area Domain network construction module, it is characterised in that：Described data framing protocol module is used for main frame and slave data forwarding communicates, region Network construction module is used for host detection and connection slave, and tree-shaped topology network is set up automatically.
2. a kind of parking position data transmission system based on wireless serial cascade network according to claim 1, its It is characterised by：Described data framing protocol module includes：
Frame head：By character "<" composition, represent the beginning of a communication frame；
Destination device address：It is made up of 3 bytes, extension number is indicated in a network；
Functional identity：It is made up of 3 bytes, for distinguishing different orders；
Forward grade：For indicating level that data frame is residing in tree network forwarding；
Forwarding address domain：Be data from the address for being issued to all slaves passed through in order on RX path, with forwarding grade Coordinate, allow slave by address determine how processing data frame；
Data bulk：Represent the byte number of data in data field；
Data field：Deposit the data to be transmitted；
Check code：For error detection；
Postamble：It is made up of character " # ", represents the end of a communication frame.
3. a kind of parking position data transmission system based on wireless serial cascade network according to claim 1, its It is characterised by：Described Local Area Network sets up module by sending data frame, allows main frame to search for each when initialization Slave, according to search result, sets up tree network, network connection data is stored automatically, sends instruction each time later All sent according to the network path set up.
CN201610073569.XA 2016-01-26 2016-01-26 A kind of parking position data transmission system based on wireless serial cascade network Pending CN106998348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610073569.XA CN106998348A (en) 2016-01-26 2016-01-26 A kind of parking position data transmission system based on wireless serial cascade network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610073569.XA CN106998348A (en) 2016-01-26 2016-01-26 A kind of parking position data transmission system based on wireless serial cascade network

Publications (1)

Publication Number Publication Date
CN106998348A true CN106998348A (en) 2017-08-01

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Application Number Title Priority Date Filing Date
CN201610073569.XA Pending CN106998348A (en) 2016-01-26 2016-01-26 A kind of parking position data transmission system based on wireless serial cascade network

Country Status (1)

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CN (1) CN106998348A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106686684A (en) * 2016-12-12 2017-05-17 莫燕秀 Parking lot's parking stall data transmission system
CN110267220A (en) * 2019-04-30 2019-09-20 泉州维盾电气有限公司 A kind of system and method for single host wireless device series connection networking data communication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101477720A (en) * 2009-01-13 2009-07-08 许仁德 Gate inhibition system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101477720A (en) * 2009-01-13 2009-07-08 许仁德 Gate inhibition system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106686684A (en) * 2016-12-12 2017-05-17 莫燕秀 Parking lot's parking stall data transmission system
CN110267220A (en) * 2019-04-30 2019-09-20 泉州维盾电气有限公司 A kind of system and method for single host wireless device series connection networking data communication
CN110267220B (en) * 2019-04-30 2021-11-02 泉州维盾电气有限公司 System and method for serial networking data communication of single-host wireless equipment

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Application publication date: 20170801