CN109326113A - Wireless communications method - Google Patents
Wireless communications method Download PDFInfo
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- CN109326113A CN109326113A CN201811580420.6A CN201811580420A CN109326113A CN 109326113 A CN109326113 A CN 109326113A CN 201811580420 A CN201811580420 A CN 201811580420A CN 109326113 A CN109326113 A CN 109326113A
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- communication
- control device
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/04—Arrangements for synchronous operation
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- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Mode it can meet the safe and reliable wireless communications method of synchronously control demand and transmission process of multiple equipment by wireless communication the present invention provides a kind of.The wireless communications method, applied in the equipment management system with a master control device and the sub- control device of plural number, for realizing the wireless communication between master control device and all sub- control devices, comprising: received by the control command that gateway issues master control device；The control command received is sent to a plurality of communication nodes that connection is communicated with gateway in a broadcast manner；A plurality of communication nodes are allowed to be received to control command simultaneously and be sent to the sub- control device being correspondingly connected with；And a plural sub- control device is allowed to receive control command, and the equipment being correspondingly connected with is controlled simultaneously, wherein, it when every secondary gateway is communicated with arbitrary communication node, is all based on scheduled screening rule and selects one from pre-assigned multiple communication channels and suitably communicated.
Description
Technical field
The invention belongs to field of signal transmissions, and in particular to one kind mode can meet multiple equipment by wireless communication
Synchronously control demand and the safe and reliable wireless communications method of transmission process.
Background technique
With the continuous development of the new and high technologies such as intelligence manufacture, big data analysis, cloud computing, the concept of smart city also by
It is formal to propose.Smart city refers to using various information technologies or innovation idea, the composition system and service in city is integrated, to mention
The efficiency of resources untilization, Optimizing City management and service are risen, and improves civil plantation quality.In the construction of smart city,
As main body, the content covered is very more in city, and various infrastructure have all realized information control substantially.Pass through the communications cable
Equipment and control terminal are connected, the message of control terminal can be timely transmitted to equipment end to control equipment and execute respective operations.
However, due to all being connected using the communications cable between most equipment end and control terminal, in order to avoid complicated
The communications cable causes obstacle to urban activity, the method generallyd use exactly by cable frame high aerial or be buried in underground, and
This just causes very burden to maintenance or reconstruction upgrading；In addition, wired communication mode is also unable to satisfy major part in smart city
The synchronously control demand of infrastructure, such as traffic lights, street lamp.For this problem, though wifi technology in the prior art
Developed it is very mature, if but by each infrastructure of wifi technical application to smart city, due to individual enterprise
Wifi hotspot is numerous, and wifi intrinsic communication mechanism certainly will interfere the operation of smart city, is unfavorable for each basis and sets
Apply operation.
In conclusion signal transmission can either wirelessly be carried out and be transmitted across by lacking one kind in field of communication technology
The safe and reliable wireless communications method of journey.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide one kind being capable of mode by wireless communication
Meet the synchronously control demand of multiple equipment and the wireless communications method that transmission process is safe and reliable.
The present invention provides a kind of wireless communications method, it is applied to that there is a master control device and plural height control to fill
In the equipment management system set, for realizing the wireless communication between master control device and all sub- control devices, there is this
The feature of sample, comprising: received by the control command that gateway issues master control device；By the control command received with
The mode of broadcast is sent to a plurality of communication nodes that connection is communicated with gateway；A plurality of communication nodes are allowed to order simultaneously control
Order is received and is sent to the sub- control device being correspondingly connected with；And a plural sub- control device is allowed to connect control command
It receives, and controls the equipment being correspondingly connected with simultaneously, wherein when every secondary gateway is communicated with arbitrary communication node, be all based on pre-
Fixed screening rule selects one from pre-assigned multiple communication channels and is suitably communicated.
It in wireless communications method provided by the invention, can also have the following features: wherein, gateway includes: gateway
One end of gateway ontology is connected by ontology, central node and network management unit with master control device, the other end and center
Node is connected, and is equipped with WirelessHART communication module in central node and all communication nodes so that central node with
Each communication node can wirelessly communicate, logical to what is formed between central node and all communication nodes by network management unit
Communication network carries out network management.
It in wireless communications method provided by the invention, can also have the following features: wherein, any two communication section
When being communicated between point, one equally is selected based on pre-assigned multiple communication channels and is suitably communicated.
It in wireless communications method provided by the invention, can also have the following features: wherein, central node has multiple
Central node is connected by several ports by the plurality of ports with gateway ontology and a plurality of communication nodes.
The action and effect of invention
Related wireless communications method according to the present invention works as master control device in any one equipment management system
When issuing control command, the control command can be received, be then sent in a broadcast manner and its phase by gateway
A plurality of communication nodes of communication connection a plurality of communication nodes while receiving control command and being sent to respective connection to allow
Sub- control device, all sub- control devices receive the equipment that can be controlled after the control command and be correspondingly connected with simultaneously and execute
Respective operations meet the synchronism demand of equipment control；In addition, when every secondary gateway is communicated with arbitrary communication node,
It is all based on scheduled screening rule and selects one from pre-assigned multiple communication channels and suitably communicated, even if in this way
Channel-failures occur, communication next time will not be interfered.
Detailed description of the invention
Fig. 1 is crossroad access signal lamp distribution schematic diagram in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of equipment management system in the embodiment of the present invention；And
Fig. 3 is the flow diagram of wireless communications method in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed wireless traffic signal light management system of the invention.
Fig. 1 is crossroad access signal lamp distribution schematic diagram in the embodiment of the present invention.
As shown in Figure 1, in the present embodiment, being described in detail by taking crossroad 10 as an example.The crossroad 10 is formed
The vehicle pass-through direction of four direction.Four vehicle signal lamp stands, 11, eight pedestrians are provided at the crossroad 10
Traffic signal post 12.
Four vehicle signal lamp stands 11 are located at the right side of four roads, and so-called right side is logical based on every road
From the point of view of line direction.In the present embodiment, four vehicle signal lamp stands 11 in addition to the position of installation it is different, other structures are all
It is identical, only one of them is described in detail herein, is omitted to other three detailed descriptions.
There are three signal lamp groups for installation on each vehicle signal lamp stand 11, are respectively: left rotaring signal lamp group 11a, straight trip
Signal lamp group 11b, right turn signal lamp group 11c allow the corresponding direction of vehicle signal lamp stand 11 to sail and carry out vehicle according to corresponding mesh
LED status selection directly current still wait for marking direction is passed through.Each signal lamp group separately includes: a red light, one
Green light and an amber light.
Eight pedestrian signal lamp stands 12 are located at the two sides roadside of four roads and close to intersections.In this implementation
In example, eight pedestrian signal lamp stands 12 are different in addition to the position of installation, other structures be all it is identical, herein only to one of them
It is described in detail, omits to other seven detailed descriptions.
Be equipped with a signal lamp group, i.e. right of way signal lamp group 12a on each pedestrian signal lamp stand 12, include: one red
Lamp and a green light.The right of way signal lamp group 12a is arranged towards road, for allowing the pedestrian on road opposite according to the signal lamp
Only state selection is directly current or waits passage.
In the present embodiment, in order to which vehicle and pedestrian can orderly be passed through at the crossroad 10, current effect is improved
Rate avoids traffic jam, is equipped with devices not shown management system 20 in figure at the crossroad 10, passes through apparatus lamp management
System 20 shows current (green light lights) or waiting (red light lights) state to manage all signal lamp groups according to set sequence, refers to
Whether leading the passage of vehicle and pedestrian.
Fig. 2 is the structural schematic diagram of equipment management system in the embodiment of the present invention.
As shown in Fig. 2, equipment management system 20 is for the carry out traffic to the vehicle and pedestrian in Fig. 1 at crossroad 10
Management guarantees that it is orderly current.
Equipment management system 20 includes: a master control device 21,22,12 communication nodes 23 of gateway and 12
Sub- control device 24.
The built-in computer program of master control device 21, for issuing control command, in the present embodiment, the control command
Specially traffic control signal.Eight pedestrian signal lamp stands 10 and four vehicle signals are controlled based on the traffic control signal
All signal lamp groups on lamp stand 20 light corresponding lamp by the rule set, thus come indicate the crossroad vehicle and
Walk or waiting guarantee current order.
One end of gateway 22 is connected with master control device 21, the other end is connected with 12 communication nodes 23, uses
All communication nodes 23 are transferred in the traffic control signal for issuing master control device 21.
The other end of 12 communication nodes 23 and 12 sub- control devices 24 are connected one to one, are used for gateway
The traffic control signal that 22 transmission come is sent to corresponding sub- control device 24.
12 sub- control devices 24 are arranged on four vehicle signal lamp stands 11 and eight pedestrians correspondingly
On Traffic signal post 12, for controlling the display state of the signal lamp group on corresponding Traffic signal post, which includes: red light
It lights, green light lights or amber light lights.In the present embodiment, 12 sub- control devices 24 in addition to the position of installation it is different,
Its structure is all identical.One end of every sub- control device 24 is connected with all signal lamp groups on corresponding Traffic signal post
It connecing, the other end is connected with corresponding communication node 23, so that the traffic control signal of the sending of master control device 21 is received, into
One step controls corresponding signal lamp group and executes scheduled display state.
As also shown in fig. 2, gateway 22 includes: gateway ontology 221, central node 222 and network management unit 223.
One end of gateway ontology 221 is connected with master control device 21, the other end is connected with central node 222, uses
In the traffic control signal for receiving the sending of master control device 21 and the traffic control signal is sent to central node 222.At this
In embodiment, the function of gateway ontology 221 with gateway in the prior art be it is identical, details are not described herein.
Central node 222 has not shown 13 ports in figure, and one of port is connected with gateway ontology 221
It connects, other 12 ports communicate correspondingly with 12 communication nodes 23 to be connect.Central node 222 is for receiving net
It closes the traffic control signal that ontology 221 is sent and sends it to all communication nodes 23.By describing as it can be seen that central node
Star-network is formd between 222 and 12 communication nodes 23, enables central node 222 and each communication node 23 straight
Tap into capable communication.
Network management unit 223 is connected with gateway ontology 221, for central node 222 and all communication sections
The communication network progress network management formed between point 23, such as increase new communications nodes, deletion have communication node, modification is led to
Believe the parameter information (including the information such as network ID, device address, frequency point) etc. of node.In the present embodiment, in any one communication
After node 23 and central node 222 are successfully established communication, network management unit 223 then carries out parameter to the communication node 23 and matches
It sets, including use when allocating multiple communication channels in advance for the communication node 23 communication；In addition, in communication process, also
Entire communication network can be optimized by network management unit 223, the communication of each communication node 23 is distributed in adjustment
Channel.
In the present embodiment, the structure of 12 communication nodes 23 is identical, herein only to one of communication node
23 are described in detail, and omit the explanation to other 11 communication nodes 23.
One end of communication node 23 is connected with central node 222, the other end and corresponding one sub- control device 24
It is connected, the traffic control signal for sending central node 222 is sent in corresponding sub- control device 24.In this reality
It applies in example, central node 222 is neutralized to be equipped in 12 communication nodes 23 and be communicated based on WirelessHART communication agreement
WirelessHART communication module.
In the present embodiment, when any one communication node 23 and central node 222 are successfully established communication, network management
Unit 223 then carries out parameter configuration to the communication node 23, logical for the communication node 23 including multiple channels are allocated in advance
It is used when letter；In addition, can also be optimized by network management unit 223 to entire communication network in communication process, adjust
The whole communication channel for distributing to each communication node 23.In subsequent communication process, the communication node 23 is then based on assigned
Multiple channels gradually switch use, as frequency hopping communications mechanism.That is, every secondary gateway ontology 221 with arbitrarily communicate
When node 23 is communicated, it can be based on scheduled screening rule and select a conjunction from pre-assigned multiple communication channels
Suitable communicate.
Passed through even if ongoing communication is unable to success communication because of channel-failures based on the frequency hopping communications mechanism
Switch other channels to use, still can be affected to avoid communication next time because of current channel-failures.
Fig. 3 is the flow diagram of wireless communications method in the embodiment of the present invention.
As shown in figure 3, being based on the above structure feature, the specific steps of the wireless communications method of the present embodiment are as follows:
Step S1, master control device 21 issues traffic control signal and is transferred to gateway ontology 221, subsequently into step
S2。
Step S2 allows gateway ontology 221 to receive the traffic control signal, and is further transmitted to central node
222, subsequently into step S3.
Step S3 received the traffic control signal by be allowed central node 222, and is sent to 12 in the form of broadcast
A communication node 23, subsequently into step S4.
Step S4 allows all communication nodes 23 to receive simultaneously to the traffic control signal sent, and is sent to pair
The sub- control device 24 answered, subsequently into step S5.
Step S5 allows all sub- control devices 24 to receive traffic control signal, and control is correspondingly connected with simultaneously
Equipment execute respective operations, subsequently into terminate state.
The action and effect of embodiment
The wireless communications method according to involved in the present embodiment, in any one equipment management system, when master control fills
Set issue control command when, the control command can be received by gateway, be then sent in a broadcast manner and its
A plurality of communication nodes of connection are communicated, a plurality of communication nodes while control command is received to allow and being sent to and respectively connect
The sub- control device connect, all sub- control devices receive and can control the equipment being correspondingly connected with simultaneously after the control command and hold
Row respective operations meet the synchronism demand of equipment control；In addition, every secondary gateway is communicated with arbitrary communication node
When, it is all based on scheduled screening rule and selects one from pre-assigned multiple communication channels and suitably communicated, in this way
Even if channel-failures occur, communication next time will not be interfered.
In the present embodiment, it is only illustrated using the traffic lights at crossing as typical example, the wireless communications method is same
Sample is suitable for the application in other fields such as smart city, the manufacturing.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (4)
1. a kind of wireless communications method, applied to the equipment management system with a master control device and the sub- control device of plural number
In system, for realizing the wireless communication between the master control device and all sub- control devices, which is characterized in that packet
It includes:
It is received by the control command that gateway issues the master control device；
The control command received is sent to a plurality of communications that connection is communicated with the gateway in a broadcast manner
Node；
A plurality of communication nodes are allowed to be received to the control command simultaneously and be sent to the sub- control being correspondingly connected with
Device processed；And
It allows the sub- control device of the plural number to receive the control command, and controls the equipment being correspondingly connected with simultaneously,
Wherein, the gateway is all based on scheduled screening rule from pre- with when arbitrarily the communication node is communicated every time
One is selected in the multiple communication channels first distributed suitably to be communicated.
2. wireless communications method according to claim 1, it is characterised in that:
Wherein, the gateway includes: gateway ontology, central node and network management unit,
One end of the gateway ontology is connected with the master control device, the other end is connected with the central node,
It is equipped with WirelessHART communication module in the central node and all communication nodes, so that the centromere
Point can be wirelessly communicated with each communication node,
By the network management unit to the communication network formed between the central node and all communication nodes
Carry out network management.
3. wireless communications method according to claim 2, it is characterised in that:
Wherein, when being communicated between communication node described in any two, equally based on pre-assigned the multiple communication letter
Road selects one and is suitably communicated.
4. wireless communications method according to claim 2, it is characterised in that:
Wherein, the central node has plurality of ports, by the plurality of ports by the central node and the gateway
Ontology is connected with a plurality of communication nodes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811580420.6A CN109326113A (en) | 2018-12-20 | 2018-12-20 | Wireless communications method |
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|---|---|---|---|
| CN201811580420.6A CN109326113A (en) | 2018-12-20 | 2018-12-20 | Wireless communications method |
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| CN109326113A true CN109326113A (en) | 2019-02-12 |
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