CN106920313A - Novel radio gate control system based on spread spectrum - Google Patents
Novel radio gate control system based on spread spectrum Download PDFInfo
- Publication number
- CN106920313A CN106920313A CN201710291366.2A CN201710291366A CN106920313A CN 106920313 A CN106920313 A CN 106920313A CN 201710291366 A CN201710291366 A CN 201710291366A CN 106920313 A CN106920313 A CN 106920313A
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- China
- Prior art keywords
- radio
- information
- door
- spread spectrum
- concentrator
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- Legal status (The legal status 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 status listed.)
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
Abstract
The invention discloses a kind of novel radio gate control system based on spread spectrum,By radio concentrator,Control centre or electron key,Three parts of access-control card reader or door opener constitute,Control centre or electron key are connected by wireless signal with radio concentrator,Access-control card reader or door opener are connected also by wireless signal with radio concentrator,Radio concentrator transmits skill technology by LoRa,The authorization message of control centre or electron key is simultaneously returned to access-control card reader or door opener by transmission Card Reader information,To control the unlatching of gate mechanical switch door sensor,Only a micro radio concentrator is configured in roof,Wiegand,485,The physical connection lines such as netting twine (GR45) are all wirelessly replaced,Due to being applied to LORA technologies,Its transmission range can reach 3~10 kilometers,Both long-distance transmissions distance problem had been solved,Also while solving the problems, such as physical connection line in the lump,Greatly save construction and the problem safeguarded.
Description
Technical field
The present invention relates to the office equipment in wireless communication field, especially a kind of novel radio door based on spread spectrum
Access control system.
Background technology
With the development of science and technology, the progress of society so that the innovation calls for conventional tool as door lock, gate inhibition are got over
Come higher, traditional office gate control system is wired connection, access-control card reader is directly connected with controller by Wiegand protocol,
Farthest communication distance is only 180m, and needs physical data line to be attached, if in the case of communication distance is increased, it is necessary to
Increase by 458 extended lines；Physical connection line needs to be put into ceiling in implementation process, during construction and maintenance, Gong Renxu
Climb to ceiling to be safeguarded and threading, very big trouble is caused to construction and maintenance, and each floor needs multiple controls
Device, multiple controllers are connected to control centre.
And home-use door lock is only door opener (mechanical key), when band key is forgotten, in addition it is also necessary to look for master worker to unlock.
For above-mentioned situation, wireless access control system arises at the historic moment.And wireless access control system of the prior art is typically all
The development of Internet technology is extremely relied on, i.e., based on the Radio Transmission Technologys such as WIFI, bluetooth, carries out relevant configuration, so
Although operation it is easy, when no network or network are closed, gate control system just thoroughly paralysis, and this transmission mode is in itself
The characteristics of determine that its control signal is not strong, penetration power is poor, and transmission command range is especially short, when gate control system needs control through walls
When system, far distance controlled, it appears particularly keep in check.
LoRa is the one kind in the LPWAN communication technologys, is that Semtech companies of the U.S. use and one kind of popularization is based on spread spectrum
The overlength distance wireless transmission scheme of technology.This scheme changes the conventional compromise consideration side on transmission range Yu power consumption
Formula, provides the user a kind of simple energy and realizes the remote, system of long battery life, Large Copacity, and then extend sensing network.
At present, LoRa mainly runs in global free frequency range, including 433,868,915MHz etc..With the skill such as WLAN, ZigBee, LTE-M
Art is compared, LoRa from sensitivity, link budget, coverage, transmission rate, send electric current, standby current, receive electric current, electricity
Pond life-span, positioning, anti-interference, topological structure, there is significant advantage on maximum terminal connection number.
LoRa modulation techniques carry out exclusive frequency spectrum broadening treatment to signal, and the reception that can be exceeded -148dBm is sensitive
Degree.LoRa is by adjusting spreading factor (Spread frequency factor) (numerical value is 6~12), modulation bandwidth
(Bandwidth) aerial practical communication speed and the variable such as error correction rate, can be adjusted, and different traffic rate correspondences is different
Maximum sensitivity, it is exactly farther transmission range and stronger noiseproof feature to be embodied in application upper.In the timing of transmission power one,
Usual spreading factor is set to bigger, and receiving sensitivity is higher obtained by module, and communication distance will be more remote, but can be simultaneously
Causing traffic rate reduces, and this is the characteristic of LoRa modulation techniques.
The content of the invention
Command range is short, wear when connecting up trouble, controlled in wireless when having line traffic control to overcome gate control system in the prior art
Saturating power is poor, extremely rely on the defects such as internet, and the present invention provides a kind of novel radio gate control system based on spread spectrum, will be many
Individual traditional controller collection is combined into one, and greatly extends command range, greatly saves construction and the problem safeguarded.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of novel radio gate control system based on spread spectrum, by radio concentrator, control centre, access-control card reader or
Three parts of door opener are constituted, and control centre is connected by wireless signal with radio concentrator, and access-control card reader or enabling are filled
Put and be connected with radio concentrator also by wireless signal, wherein：
Access-control card reader：For reading supporting IC access cards or electronic key information, and pass the information on into control
The heart；
Control centre：When enabling information is delivered to control centre by spread spectrum, authorization message is checked by control centre,
Authorize
Information is legal, then door opening command is passed into door opener, is opened the door by door opener control door sensor；Work as authorization message
Do not conform to
During method, then door opening command is not transmitted.
Door opener：Obtain, from after enabling signal, controlling the unlatching of gate mechanical switch door sensor；
Radio concentrator：Transmission Card Reader information, and control centre's authorization message is returned into access-control card reader or the dress that opens the door
Put.
In such scheme, the application novel radio gate control system is applied to LoRa spread spectrum transmission technologies, refers in particular to wireless
Concentrator transmits Card Reader information and control centre's authorization message is returned into access-control card reader by LoRa spread spectrum transmission skill technologies
Or door opener, to control the unlatching of gate mechanical switch door sensor.
In such scheme, door opener is made up of MCU single-chip microcomputers, power supply, radio transmitting device, gate inhibition's card reading circuit, electricity
Source, radio transmitting device, gate inhibition's card reading circuit are respectively connected with MCU single chip circuits, wherein：
MCU single-chip microcomputers：Information for reading IC access cards, the information that will be read is delivered to by serial ports and is wirelessly transferred dress
Data are sent to radio concentrator by the wirelessly transferred chip put, wirelessly transferred chip by the antenna of radio transmitting device；Together
When, MCU single-chip microcomputers can also receive the data of radio concentrator by wirelessly transferred chip, and the data that will be received are processed
Treatment, then treated data are passed into radio concentrator by wirelessly transferred chip, then according to data content to gate
The unlatching of mechanical switch door sensor is controlled, to reach the purpose of open and close door；
Power supply：For being powered to door opener；
Radio transmitting device：It is made up of wireless transport module and antenna, wireless transport module is by serial ports and MCU single-chip microcomputers
It is connected, MCU single-chip microcomputers first read badge information, badge information is that data signal passes through spread spectrum handle by wireless transport module
Data signal is converted into analog signal and passes to radio concentrator, while the analog signal conversion that radio concentrator is passed over
It is that data signal passes to MCU single-chip microcomputers into data；
Gate inhibition's card reading circuit：It is connected with MCU single-chip microcomputers by spi bus, IC gate inhibition is read by RFID signal
The information of card, and MCU single-chip microcomputers are given by the information transmission of IC access cards, so that MCU single-chip microcomputers are carried out to the information of IC access cards
Working process.
The beneficial effects of the invention are as follows wireless access control system directly connects from access-control card reader to control centre without physical cord
Connect, it is all wireless only to configure the physical connection lines such as a micro radio concentrator, Wiegand, 485, netting twine (GR45) in roof
Instead of, due to being applied to LORA technologies, its transmission range can reach 3~10 kilometers, both solve long-distance transmissions distance
Problem, also while solving the problems, such as physical connection line in the lump, greatly saves construction and the problem safeguarded, benefit is as follows：
1st, being wirelessly transferred can penetrate floor with MANET, signal；Long transmission distance, low-power consumption；
2nd, without connecting up again in building, a large amount of installation works when eliminating construction and safeguarding；
3rd, traditional central controller is not used in floor, cost is saved；
4th, it is base station that a roof sets up a radio concentrator, can cover 2 buildings, greatly reduces operation cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the structural representation of the novel radio gate control system based on spread spectrum of the embodiment of the present invention；
Fig. 2 is the structural representation of the door opener of the novel radio gate control system based on spread spectrum of the embodiment of the present invention
Figure；
Fig. 3 is the use schematic diagram of the novel radio gate control system based on spread spectrum of the embodiment of the present invention.
Fig. 4 is the schematic network structure of the novel radio gate control system based on spread spectrum of the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing of the invention, technical scheme is clearly and completely described, it is clear that institute
The embodiment of description is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
In the mesh network, individual terminal node forwards the information of other nodes, to increase the communication distance and net of network
Network region scale.Although which increasing scope, complexity is also increased, reduce network capacity, and reduce battery
Life-span, because node receives and forwards possibility and its incoherent information from other nodes.It is long when realizing connecting over long distances
Most significant apart from star schema is to protect battery life.
In the network set by the present patent application embodiment, node is unconnected to dedicated gateway.Conversely, a node
The data of transmission are typically to be received by multiple gateways.Each gateway will connect received packet and passes through from terminal node
Backhaul (honeycomb, Ethernet etc.) is forwarded to the webserver based on cloud computing, and intelligent and complexity has been put on server,
The data for receiving of server admin network and filtering redundancy, perform safety inspection, are scheduled really by optimal gateway
Recognize, and perform adaptive data rate etc., embodiment network structure is as shown in Figure 4.
Door opener：It is applied to the environment that non-IC badges open the door, such as family, only door opener (or can be electricity
Sub- key), by transmission of wireless signals switch gate order.
Radio concentrator (base station)：Using Radio Transmission Technology, replace the transmission lines such as original controller, Wiegand, 485.
Skill technical transmission Card Reader information is transmitted using lora, and the authorization message of control centre is returned into card reader, to control door
Switch.
Electron key：It is directed to family to use, instead of tradition machinery key.Physical aspect is not limited, it may be possible to mobile phone shell,
It could also be possible that the same electron key of similar automobile.
Door opener is made up of 4 major parts altogether, including：MCU (single-chip microcomputer), power supply, radio transmitting device, gate inhibition
The several parts of Card Reader.
MCU single-chip microcomputers：It is the control centre of whole door opener, reads the information of access card, the information that will be read passes through
Serial ports is delivered to wirelessly transferred chip, and data are sent to concentrator by wirelessly transferred chip by antenna.Meanwhile, MCU can also lead to
The data that wirelessly transferred chip receives concentrator are crossed, and the data that will be received are processed.Again by treated data
Concentrator is passed to by wirelessly transferred chip.Then be controlled to reach out according to data content clamshell doors mechanical part,
The purpose closed the door.
It should be noted that：Under the use environment without card reader (such as home-use)：MCU is only responsible for by being wirelessly transferred
Chip receives and sends data to be processed needed for concentrator.Then according to data content clamshell doors mechanical part be controlled with
Reach the purpose of open and close door.
Power supply：Mainly powered to door opener；
Radio transmitting device：Its wireless transport module is connected by serial ports with MCU, or other universal serial bus and MCU
Single-chip microcomputer is connected, and specifically to see the model of chip, at present selection chip be use serial mode, it is also possible to SPI or
The buses such as I2C.MCU first reads badge information, and wireless transport module is by badge information (data signal) by spread spectrum number
Word signal is converted into analog signal and passes to concentrator, while the analog signal that concentrator is passed over is converted into data (number
Word signal) MCU is passed to, only responsible data are modulated, demodulate and be transmitted, and data are not processed.
Gate inhibition's card reading circuit：It is connected with MCU by spi bus, the information of card is read by RFID signal, and will
The information transmission of card to MCU, so that MCU is processed to the information of card.
【Embodiment】
As Figure 1-4, in above-mentioned technical proposal, the method for realizing opening the door using novel radio gate control system, its step
For：
Q1：Librarian use IC access cards of swiping the card are swiped the card on door opener, and door opener obtains enabling information (numeral
Signal)；
Q2：Enabling information is passed to wirelessly transferred chip by the MCU single-chip microcomputers inside door opener by serial ports；
Q3：Enabling information is modulated into analog signal by wirelessly transferred chip by spread spectrum, and is passed to by antenna
Radio concentrator remote wireless transmission；
Q4：Radio concentrator receives the enabling information of analog signal, and the analog information is demodulated into data signal, leads to
Cross network or wirelessly transferred chip passes to control centre；
Q5：Control centre judges whether enabling information authorizes, and Authorization result (data signal) passed into functions of wireless
Device；
Q6：Authorization message is modulated into analog signal by radio concentrator by spread spectrum, and the simulation restricting the number is transmitted
To the wirelessly transferred chip in door opener；
Q7：The authorization message of analog signal form is demodulated to data signal by the wirelessly transferred chip in door opener, and
MCU single-chip microcomputers are passed to by serial ports.
Q8：MCU single-chip microcomputers carry out authority judgement by authorization message, when authority meets, are started by electromagnetic signal
Mechanical device is opened the door；When authority is unsatisfactory for, buzzer is loud or indicator lamp is bright, points out user right to be unsatisfactory for.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (5)
1. a kind of novel radio gate control system based on spread spectrum, it is characterised in that：By radio concentrator, control centre, door
Prohibit three parts of card reader or door opener to constitute, control centre is connected by wireless signal with radio concentrator, gate inhibition's Card Reader
Device or door opener are connected also by wireless signal with radio concentrator, wherein：
Access-control card reader：For reading supporting IC gate inhibition's card information, and pass the information on to control centre；
Control centre：When enabling information is delivered to control centre by spread spectrum, authorization message is checked by control centre, authorizes
Information is legal, then door opening command is passed into door opener, is opened the door by door opener control door sensor；When authorization message is illegal
When, then do not transmit door opening command；
Door opener：Obtain, from after enabling signal, controlling the unlatching of gate mechanical switch door sensor；
Radio concentrator：Transmission Card Reader information, and the authorization message of control centre is returned into access-control card reader or door opener,
To control the unlatching of gate mechanical switch door sensor.
2. a kind of novel radio gate control system based on spread spectrum according to claim 1, it is characterised in that the application
Novel radio gate control system is applied to spread spectrum transmission technology, refers in particular to radio concentrator by spread spectrum transmission skill technology, transmission
Control centre is simultaneously weighed information back to access-control card reader or door opener by Card Reader information, to control gate mechanical switch door sensor
Unlatching.
3. a kind of novel radio gate control system based on spread spectrum according to claim 1, it is characterised in that the application
Novel radio gate control system is applied to spread spectrum transmission technology, refers to the ISM band operation in 433,868 and/or 915MHz.
4. a kind of novel radio gate control system based on spread spectrum according to claim 1, it is characterised in that open the door dress
Put and be made up of MCU single-chip microcomputers, power supply, radio transmitting device, gate inhibition's card reading circuit, power supply, radio transmitting device, gate inhibition's Card Reader electricity
Road is respectively connected with MCU single chip circuits, wherein：
MCU single-chip microcomputers：Information for reading IC access cards, the information that will be read is delivered to radio transmitting device by serial ports
Data are sent to radio concentrator by wirelessly transferred chip, wirelessly transferred chip by the antenna of radio transmitting device；Meanwhile,
MCU single-chip microcomputers can also receive the data of radio concentrator by wirelessly transferred chip, and the data that will be received are processed place
Reason, then treated data are passed into radio concentrator by wirelessly transferred chip, then according to data content to door machine
The unlatching of tool switch door sensor is controlled, to reach the purpose of open and close door；
Power supply：For being powered to door opener；
Radio transmitting device：It is made up of wireless transport module and antenna, wireless transport module is connected by serial ports with MCU single-chip microcomputers
Connect, MCU single-chip microcomputers first read badge information, badge information is data signal digital by spread spectrum handle by wireless transport module
Signal is converted into analog signal and passes to radio concentrator, while the analog signal that radio concentrator is passed over is converted into number
MCU single-chip microcomputers are passed to according to i.e. data signal；
Gate inhibition's card reading circuit：It is connected with MCU single-chip microcomputers by spi bus, IC access cards is read by RFID signal
Information, and MCU single-chip microcomputers are given by the information transmission of IC access cards, so that MCU single-chip microcomputers are processed to the information of IC access cards
Treatment.
5. a kind of novel radio gate control system based on spread spectrum according to claim 1,2,3 or 4, its feature exists
In using the method for novel radio gate control system realization enabling, its step is：
Q1：Librarian use IC access cards of swiping the card are swiped the card on door opener, and door opener obtains enabling information (numeral letter
Number)；
Q2：Enabling information is passed to wirelessly transferred chip by the MCU single-chip microcomputers inside door opener by serial ports；
Q3：Enabling information is modulated into analog signal by wirelessly transferred chip by spread spectrum, and is passed to wirelessly by antenna
Concentrator remote wireless transmission；
Q4：Radio concentrator receives the enabling information of analog signal, the analog information is demodulated into data signal, by net
Network or wirelessly transferred chip pass to control centre；
Q5：Control centre judges whether enabling information authorizes, and Authorization result (data signal) is passed into radio concentrator；
Q6：Authorization message is modulated into analog signal by radio concentrator by spread spectrum, and the simulation restricting the number is passed to out
Wirelessly transferred chip in door gear；
Q7：The authorization message of analog signal form is demodulated to data signal by the wirelessly transferred chip in door opener, and is passed through
Serial ports passes to MCU single-chip microcomputers.
Q8：MCU single-chip microcomputers carry out authority judgement by authorization message, when authority meets, machinery are started by electromagnetic signal
Device is opened the door；When authority is unsatisfactory for, buzzer is loud or indicator lamp is bright, points out user right to be unsatisfactory for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291366.2A CN106920313A (en) | 2017-04-28 | 2017-04-28 | Novel radio gate control system based on spread spectrum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291366.2A CN106920313A (en) | 2017-04-28 | 2017-04-28 | Novel radio gate control system based on spread spectrum |
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Family
ID=59567768
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| CN201710291366.2A Pending CN106920313A (en) | 2017-04-28 | 2017-04-28 | Novel radio gate control system based on spread spectrum |
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| CN107155209A (en) * | 2017-07-21 | 2017-09-12 | 河南卓正电子科技有限公司 | Asymmetric LoRa communication systems and its control method |
| CN107610307A (en) * | 2017-10-27 | 2018-01-19 | 安徽工程大学 | A kind of SCM Based household gate control system |
| CN109412787A (en) * | 2018-09-11 | 2019-03-01 | 深圳市亿兆互联技术有限公司 | A kind of encryption access control system based on Lora |
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| CN107155209A (en) * | 2017-07-21 | 2017-09-12 | 河南卓正电子科技有限公司 | Asymmetric LoRa communication systems and its control method |
| CN107155209B (en) * | 2017-07-21 | 2019-06-21 | 河南卓正电子科技有限公司 | Asymmetric LoRa communication system and its control method |
| CN107610307A (en) * | 2017-10-27 | 2018-01-19 | 安徽工程大学 | A kind of SCM Based household gate control system |
| CN109412787A (en) * | 2018-09-11 | 2019-03-01 | 深圳市亿兆互联技术有限公司 | A kind of encryption access control system based on Lora |
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