CN205541378U - Collection system of tunnel pressure wave - Google Patents
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- CN205541378U CN205541378U CN201620102523.1U CN201620102523U CN205541378U CN 205541378 U CN205541378 U CN 205541378U CN 201620102523 U CN201620102523 U CN 201620102523U CN 205541378 U CN205541378 U CN 205541378U
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Abstract
An object of the utility model is to provide a collection system of tunnel pressure wave, including being used for detecting trigger device, data acquisition node, gateway control node that the vehicle driveed in the tunnel into and rolled the tunnel away from, carrying out wireless communication's cloud ware and carry out the PC wireless or wired connection with the cloud ware with gateway control node, the data acquisition node includes the 2nd zigBee module and ARM data acquisition and storage module, gateway control node includes the 3rd zigBee module and GPRS module. Use the technical scheme of the utility model, technological effect below having: (1 )The entire system device is retrencied, (2 )The node capacity is high far away with the topology distance, (3 )Can realize the data acquisition under the self -defined triggering condition, (4 )Obtain higher equivalent transmission bandwidth, to abominable network environment's strong adaptability, save the cost.
Description
Technical field
This utility model relates to technical field of transportation, is specifically related to the acquisition system of a kind of air pressure wave in tunnel.
Background technology
In aerodynamics in tunnel test run test, air pressure wave in tunnel collection (i.e. gathers in tunnel during High-speed Trains Passing Through Tunnel
Barometric information) extremely important, air pressure wave in tunnel experiment with measuring has only to train through during special time in carry out
High speed acquisition.At present, air pressure wave in tunnel collection mainly has a following several method:
1, cable data acquisition system is utilized to be acquired: this kind of method has the disadvantage that wiring is numerous and diverse, power taking difficulty,
Needing the most on duty, single test expends a large amount of manpower and materials, it is difficult to test is repeated several times to obtain full and accurate data.
2, utilize wireless acquisition system to be acquired, have following several at present:
Data collecting system based on ZigBee-network: although ZigBee technology has the strongest networking capability, can form
Large-scale wireless sensor network, but message transmission rate is low, is mainly used in sample rate and requires the lowest slowly varying index
Long term monitoring, it is impossible to be applied to the specific occasion that sample rate is higher.Existing ZigBee-network cannot realize air pressure wave in tunnel collection
Required 300sps～500sps sample rate, it is impossible to meet the measurement demand of air pressure wave in tunnel.
Infrared, bluetooth and WiFi gather: this kind of system is mainly directed towards point-to-point transmission, and bluetooth connects equipment less than 8, WiFi
Connection equipment is less than 50 and networking structure is star topology, and maximum topology scope is less than 300m, three of the above wireless solution node
Capacity is less, and networking capability is not enough to constitute the wireless-transmission network that distribution distance is remote and number of nodes is numerous.
Based on embedded technology data collecting system: generally by wireline interfaces such as serial ports, Ethernet, PCI, data are uploaded to
Host computer, at each measuring point, the signal of sensor is also required to be connected to data collecting system by cable, when the more phase of measuring point is spaced
From farther out time, being routed in the adverse circumstances such as tunnel can be the most complicated loaded down with trivial details, troubleshooting difficulty during the fault such as open circuit, short circuit occurs,
Power supply mode generally by adapter by 220V civil power blood pressure lowering be onboard voltage source use, lowered in field environment is difficult to.
STORAGE MEASUREMENT TECHNIQUE: do not carry out networking between this kind of each measuring point of internal system, respective complete independently data acquisition and storage,
Need to obtain from each acquisition node one by one data, troublesome poeration when acquisition node number is numerous after off-test, be not easy to repeatedly weigh
Retrial is tested.
Therefore, design that a kind of apparatus structure is simplified, sample rate is high and have high node capacity and the long system expanding distance and
Collecting method has important function.
Utility model content
The purpose of this utility model is to provide the acquisition system of a kind of air pressure wave in tunnel, and concrete technical scheme is as follows:
The acquisition system of a kind of air pressure wave in tunnel, triggers touching of message including sending when sailing tunnel into for vehicle and roll tunnel away from
Transmitting apparatus, tunnel portal to the Way out multiple data acquisition nodes being sequentially arranged on tunnel inner wall, it is arranged on tunnel
The Cloud Server that communicates wirelessly with policy control node of at least one policy control node outside entrance or outlet and
The PC being wirelessly or non-wirelessly connected with described Cloud Server；
Described data acquisition node includes the second ZigBee module being connected with described triggering device and with described second
The ARM data acquisition of ZigBee module connection and memory module；
Described policy control node includes the 3rd be connected respectively with described second ZigBee module and described triggering device
ZigBee module and the GPRS module being connected with described 3rd ZigBee module and described Cloud Server respectively；
Or, described data acquisition node includes the second ZigBee module and is connected with described second ZigBee module
ARM data acquisition and memory module；Described policy control node includes the 3rd ZigBee being connected with the second ZigBee module
Module and the GPRS module being connected with described 3rd ZigBee module, described Cloud Server and described triggering device respectively.
In above technical scheme preferably, described second ZigBee module and the processor core of described 3rd ZigBee module
Sheet is CC2530 chip；
The processor chips of described ARM data acquisition and memory module are S3C2410 chip, and it includes and described second
The ARM data acquisition module of ZigBee module both-way communication and the SD with described ARM data acquisition module both-way communication
Card, the circuit connection of described SD card is SD pattern；Carried out by Ethernet between described Cloud Server and described PC
Communication；It is connected for bidirectional wireless communication between described second ZigBee module with described 3rd ZigBee module.
In above technical scheme preferably, described triggering device is and the mobile phone of described GPRS module wireless connections.
In above technical scheme preferably, described triggering device include being separately positioned on tunnel portal is outer and outside tunnel exit extremely
Few two are triggered node；Described triggering node include respectively with described second ZigBee module and described 3rd ZigBee module
The first ZigBee module of connecting and be connected with described first ZigBee module and be used for detecting vehicle and sail tunnel and vehicle into
Roll the detection part in tunnel away from；
The first ZigBee module between two described triggering nodes is connected with each other.
In above technical scheme preferably, distance between a described triggering node and tunnel portal and another described touch
The distance sent out between node and tunnel exit is 100-200 rice；Multiple described data acquisition nodes are equidistantly distributed, and phase
Distance between adjacent two described data acquisition nodes is 20-100 rice；The processor chips of described first ZigBee module
For CC2530 chip；Described detection part is that ultrasonic sensor or infrared receiving/transmission are to pipe.
In above technical scheme preferably, the model of described ultrasonic sensor is KS103H；
The SCL pin of described ultrasonic sensor or the output switch parameter pin of described infrared tube and described first
The P0.1 foot IO of ZigBee module is connected；The K15 pin TXD0 of described ARM data acquisition and memory module is with described
The P0.2 pin RX of the second ZigBee module is connected, the K17 pin RXD0 of described ARM data acquisition and memory module
It is connected with the P0.3 pin TX of described second ZigBee module.
Application the technical solution of the utility model, has the advantages that
1, this utility model triggers node, multiple data acquisition node, at least one gateway control only with mobile phone or two
Node and Cloud Server can realize the data acquisition of air pressure wave in tunnel, and log in Cloud Server by PC oneself
Obtaining related data, whole system is apparatus simplified.
2, use multiple data acquisition node and multiple ZigBee module, reach higher node capacity and farther topology
Distance；By triggering node and the modular design of policy control node, it is possible to achieve the data acquisition under self-defined trigger condition.
3, this utility model is in order to increase topology distance, builds line style network in tunnel, and the networking topology of employing is grid
Type topology, the node type of each data acquisition node is router, and the node type of policy control node is coordinator, triggers
The node type of node is terminal.When 4 sent data to coordinator node with last router node simultaneously, coordinator has
Time there will be reception and repeat data and data Loss, main cause is as follows: repeating data should be owing to coordinator receives
The identical data that two or more difference path is transmitted；Loss of data should be that the node owing to sending simultaneously is many, and coordinator buffers
District's deficiency causes, and when routing node, to increase event of data loss more serious.Therefore, this utility model uses ARM data
Collection and memory module are queued up the most successively after being compressed the data collected processing and are uploaded data, reduce ZigBee-network
RFDC amount, it is thus achieved that higher effective transmission bandwidth, improve the adaptability to severe network environment, simultaneously
Decrease the flow of GPRS network remote transmission, provide cost savings.
4, select Cloud Server as the reception terminal of long-range sampled data, have public network IP can receive GPRS network with
TCP sends the data that mode transmits, and any time all can receive data and never go offline, in the calculating arbitrarily connecting Internet
All can extract data by Telnet Cloud Server on machine, and there is powerful computing capability facilitate the post processing of data.
In addition to objects, features and advantages described above, this utility model also has other objects, features and advantages.
Below with reference to figure, this utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing being further appreciated by of the present utility model, signal of the present utility model
Property embodiment and explanation thereof are used for explaining this utility model, are not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is triggering node, a collection in the acquisition system of air pressure wave in tunnel in this utility model preferred embodiment 1
Node, policy control node, Cloud Server and the attachment structure schematic diagram of PC；
Fig. 2 be mobile phone in the acquisition system of air pressure wave in tunnel in this utility model preferred embodiment 3, acquisition node, one
The attachment structure schematic diagram of individual policy control node, Cloud Server and PC；
Wherein, 11, trigger node, the 111, first ZigBee module, 112, detection part, 12, data acquisition node,
121, the second ZigBee module, 122, ARM data acquisition and memory module, 1221, ARM data acquisition module,
1222, SD card, 13, policy control node, the 131, the 3rd ZigBee module, 132, GPRS module, 14, cloud clothes
Business device, 15, PC, 16, mobile phone.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model can be wanted according to right
The multitude of different ways limited and cover is asked to implement.
Embodiment 1:
As a example by certain tunnel, length of tunnel is 1000 meters, uses acquisition system and the data acquisition of air pressure wave in tunnel of the present invention
Diversity method carries out data acquisition, and Details as Follows:
The acquisition system of a kind of air pressure wave in tunnel, refers to Fig. 1, touching outside being separately positioned on tunnel portal including two and export
Send out node 11 (distance between a described triggering node 11 and tunnel portal and another described triggering node 11 and tunnel
Distance between road outlet is 150 meters), be sequentially arranged on tunnel inner wall by tunnel portal to Way out 20
Data acquisition node 12 (distance between adjacent two described data acquisition nodes 12 is 50 meters), it is arranged on tunnel and enters
Mouthful or outlet outside a policy control node 13 and the Cloud Server 14 that communicates wirelessly of policy control node 13 with
And (PC and Cloud Server can also be according to realities to carry out the PC 15 of communication with described Cloud Server 14 by Ethernet
Border demand uses wired connection), refer to Fig. 1.In real world applications, according to the actual requirements, it is also possible to arrange multiple triggering simultaneously
Node, data acquisition node and policy control node, can be not only used for synchronizing to obtain data, it is also possible to made by unnecessary parts
For spare unit, especially break down or convenient time precision reduces replace.
ZigBee is low-power consumption LAN protocol based on IEEE802.15.4 standard.ARM (Acorn RISC Machine),
It it is the Acorn company limited a risc microcontroller towards low budget Market Design.Arm processor itself is 32
Design, is also equipped with 16 bit instruction collection, saves than 32 codes of equal value in general and reach 35%, but can retain 32 systems
Had superiority.
Described triggering node 11 includes connecting with described second ZigBee module 121 and described 3rd ZigBee module 131 respectively
The first ZigBee module 111 of connecing and be connected with described first ZigBee module 111 and for detecting whether have passing car
Detection part 112, described detection part 112 is ultrasonic sensor, and the model of described ultrasonic sensor is
KS103H。
Described data acquisition node 12 include the second ZigBee module 121 of being connected with described first ZigBee module 111 with
And the ARM data acquisition that is connected with described second ZigBee module 121 and memory module 122, described ARM data acquisition
Integrating and the processor chips of memory module 122 are as S3C2410 chip, it includes and described second ZigBee module 121 pairs
To communication ARM data acquisition module 1221 and with the SD card of described ARM data acquisition module 1221 both-way communication
1222, the circuit connection of described SD card 1222 is SD pattern.
Described policy control node 13 includes connecting with described first ZigBee module 111 and the second ZigBee module 121 respectively
The 3rd ZigBee module 131 that connects and being connected with described 3rd ZigBee module 131 and described Cloud Server 14 respectively
GPRS module 132, wherein, is wireless between described second ZigBee module 121 and described 3rd ZigBee module 131
Both-way communication.
Described first ZigBee module the 111, second ZigBee module 121 and the processor of the 3rd ZigBee module 131
Chip is CC2530 chip.The model of described ultrasonic sensor is KS103H, its SCL pin and described first
The P0.1 foot IO of ZigBee module 111 is connected；The K15 pin TXD0 of described ARM data acquisition and memory module 122
It is connected with the P0.2 pin RX of described second ZigBee module 121, described ARM data acquisition and memory module 122
K17 pin RXD0 be connected with the P0.3 pin TX of described second ZigBee module 121.
The collecting method of the acquisition system of above-mentioned air pressure wave in tunnel, comprises the following steps:
Preparation process, specifically: set in ARM data acquisition in data acquisition node 12 and memory module 122 and adopt
Sample speed is 300sps and arranges data pre-stored space is 3 seconds；
Step one: the triggering pattern that P0.1 foot in the first ZigBee module 111 in two described triggering nodes 11 is interrupted
All it is set as that rising edge triggers pattern；
It is positioned at the detection part 112 triggered in node 11 outside tunnel portal and detects that vehicle feeds back to and it when sailing tunnel into
Described first ZigBee module 111 connected；
Step 2: be positioned at described first ZigBee module 111 triggered in node 11 outside tunnel portal and send data acquisition
Collection order is to the second ZigBee module 121 in all data acquisition nodes 12 and is positioned at the triggering joint outside tunnel exit
The first ZigBee module 111 in point 11；
Step 3: be positioned at the first ZigBee module 111 triggered in node 11 outside tunnel exit and receive data acquisition
After order, its triggering pattern is become trailing edge triggering pattern from rising edge triggering pattern；
ARM data acquisition and memory module 122 in each data acquisition node 12 receive data acquisition command by serial ports
The corresponding data collected also is preserved by laggard circulation of qi promoting pressure data acquisition；
Step 4: be positioned at the detection part 112 triggered in node 11 outside tunnel exit and detect when vehicle rolls tunnel away from,
Be positioned at described first ZigBee module 111 triggering in node 11 outside tunnel exit send stop data acquisition command to
The second ZigBee module 121 in each data acquisition node 12 and the 3rd ZigBee module in policy control node 13
131；The triggering pattern being positioned at the first ZigBee module 111 triggered in node 11 outside tunnel exit is triggered by trailing edge
Pattern becomes rising edge and triggers pattern；ARM data acquisition and memory module 122 in each data acquisition node 12 pass through string
Mouth stops data acquisition after receiving stopping data acquisition command；
Step 5: the 3rd ZigBee module 131 in described policy control node 13 receives stopping data acquisition command,
Then carry out next step；
Step 6: the 3rd ZigBee module 131 in described policy control node 13 is in i-th data acquisition node 12
The second ZigBee module 121 send and upload data command, wherein, i takes more than or equal to 1 and less than total data acquisition node
Sum natural number；ARM data acquisition and memory module 122 in i-th data acquisition node 12 pass through series connection
Receive the data feedback that compressed after uploading data command by the second ZigBee module of being connected with its serial ports to gateway control
The 3rd ZigBee module 131 in node 13 processed；The 3rd ZigBee module 131 in policy control node 13 will be relevant
Compression data are uploaded to Cloud Server 14 by GPRS module 132；
Step 7: take i=i+1, repeats step 6；
Step 8: user obtains associated compression data by PC 15 from Cloud Server 14.
When vehicle is from sailing tunnel into rolling tunnel away from, and Details as Follows for each component working:
1, it is positioned at outside tunnel portal and is positioned at two described first in two triggering nodes 11 outside tunnel exit
ZigBee module 111 all initializes, arrange the P0.1 in two the first ZigBee module 111 be interrupt mode and
The triggering pattern arranging P0.1 is rising edge triggering pattern；Wait；
All second ZigBee module 121 in all described data acquisition nodes 12 all initialize, and all of
Two ZigBee module 121 all start operating system；If second ZigBee module 121 receives in described data acquisition node 12
Spread out of to wireless data then serial ports；ARM data acquisition and memory module 122 poll serial ports；
2, when the detection part 112 being positioned in the triggering node 11 outside tunnel portal detects the information that vehicle sails tunnel into,
P0.1 foot in first ZigBee module 111 produces trailing edge, causes P0.1 to interrupt, then the first ZigBee module 111 nothing
Line sends data acquisition command and to the second ZigBee module 121 in all data acquisition nodes 12 and is positioned at tunnel exit
First ZigBee module 111 triggered in node 11 in outside (herein, according to the actual requirements, also can wireless transmission simultaneously
Data acquisition command is to the 3rd ZigBee module 131 in policy control node 13)；
3, it is positioned at described first ZigBee module 111 triggered in node 11 outside tunnel exit to receive and be positioned at tunnel and enter
The data acquisition command of described first ZigBee module 111 wireless transmission triggered in node 11 outside Kou, then arrange it
In first ZigBee module 111, the triggering pattern of P0.1 is that trailing edge triggers pattern；
ARM data acquisition and memory module 122 in all data acquisition nodes 12 receive data acquisition by serial ports and order
Order, its internal ARM data acquisition module 1221 carries out data acquisition and stores the data of collection to connected
In SD card 1222 (if the 3rd ZigBee module 131 now in policy control node 13 receives data acquisition command, this
Time, the 3rd ZigBee module 131 is failure to actuate)；
4, when the detection part 112 being positioned in the triggering node 11 outside tunnel exit detects the information that vehicle rolls tunnel away from,
P0.1 foot in first ZigBee module 111 produces trailing edge, causes P0.1 to interrupt, then the first ZigBee module 111 nothing
Line sends and stops data acquisition command to the second ZigBee module 121 and gateway control in all data acquisition nodes 12
The 3rd ZigBee module 131 in node 13 (also can stop data acquisition command to being positioned at outside tunnel portal by wireless transmission
Described first ZigBee module 111 triggered in node 11, the most described first ZigBee module 111 is failure to actuate)；
5, the 3rd ZigBee module 131 in described policy control node 13 finds that wireless receiving interrupts, parsing wireless information:
If being positioned at described first ZigBee module 111 wireless transmission triggering in node 11 outside tunnel exit to stop data acquisition
Collection order, then send successively according to tandem and upload data command to the 2nd ZigBee mould in each data acquisition node 12
Block 121 (herein, uploading data successively according to by putting in order of tunnel portal to Way out)；
6, it is positioned at the first ZigBee module 111 triggered in node 11 outside tunnel portal and judges wireless interruption, then resolve
Wireless information, if the 3rd ZigBee module 131 received in policy control node 13 send upload data command, then
Sending node type is to the 3rd ZigBee module 131 in policy control node 13；
After the second ZigBee module 121 in data acquisition node 12 receives wireless information, serial ports spreads out of；ARM data acquisition
Collection and memory module 122 poll serial ports, if serial ports has data, then resolve serial port message: if in policy control node 13
The 3rd ZigBee module 131 send upload data command, then ARM data acquisition and memory module 122 receive and upload
Data command, its internal described ARM data acquisition module 1221 reads data in connected SD card 1222
And be compressed by corresponding data, and by the second ZigBee module 121, compression data are transferred to policy control node 13
In the 3rd ZigBee module 131；
7, the 3rd ZigBee module 131 in policy control node 13 receives the 2nd ZigBee in data acquisition node 12
The compression data of module 121, then receive corresponding compression data and be sent to connected GPRS module 132,
The compression data received are uploaded to Cloud Server 14 by GPRS module 132；
8, user uses PC 15 to obtain associated compression data from Cloud Server 14 and carry out decompressing, comparing peering.
Above-mentioned each parts use built-in power mode, and are in resting state when each parts are failure to actuate.
The acquisition system of the air pressure wave in tunnel of the application present invention and collecting method thereof, have the effect that
1, compared with existing wireless data acquisition system based on WiFi, there is higher node capacity and farther topology distance.
2, compared with existing wireless data acquisition system based on ZigBee, with the addition of automatic trigger mechanism and (specifically refer to
It is positioned at outside tunnel portal and is positioned at two triggering nodes 11 outside tunnel exit, can detect that vehicle enters and exits in time
Tunnel), it is possible to achieve the data acquisition under self-defined trigger condition (specifically refers to two and triggers a ZigBee in node 11
The setting of the triggering pattern of P0.1 in module 111), by combining embedded technology, improve the sample rate of data, and
Data are compressed processing and sorting uploading data by each acquisition node, reduce the RFDC of ZigBee-network
Amount, it is thus achieved that higher effective transmission bandwidth, improves the adaptability to severe network environment, decreases GPRS net simultaneously
The flow of network remote transmission, provides cost savings.
3, select Cloud Server as the reception terminal of long-range sampled data, have public network ip can receive GPRS network with
TCP sends the data that mode transmits, and any time all can receive data and never go offline, in the calculating arbitrarily connecting Internet
All can extract data by Telnet Cloud Server on machine, and there is powerful computing capability, facilitate the post processing of data.
4, it is acquired in the case of meeting trigger condition, is unsatisfactory for node dormancy during trigger condition, save system energy
Consumption, is powered by battery, it is to avoid the problem of field power taking difficulty.
Technical solution of the present invention is the most as shown in table 1.
Table 1 embodiment 1, existing wired methods and existing wireless method comparison sheet
Embodiment 2:
A kind of acquisition system of air pressure wave in tunnel, difference from Example 1 is:
Detection part 112 uses infrared receiving/transmission to pipe；2, by the output switch parameter pin of infrared tube and a described ZigBee
The P0.1 foot IO of module 111 is connected.
The present embodiment triggers, data acquisition and to upload principle etc. the most same as in Example 1, and both technique effects are similar.
Embodiment 3:
The acquisition system of a kind of air pressure wave in tunnel, refers to Fig. 2, and difference from Example 1 is:
1, described triggering device is and the mobile phone of described GPRS module 132 wireless connections；Described data acquisition node 12 wraps
Include the second ZigBee module 121 and the ARM data acquisition being connected with described second ZigBee module 121 and storage mould
Block 122；Described policy control node 13 includes the 3rd ZigBee being connected with described second ZigBee module 121 both-way communication
Module 131 and respectively with described 3rd ZigBee module 131, described Cloud Server 14 and and described triggering device even
The GPRS module 132 connect.
2, its collecting method, comprises the following steps:
Step one: by the GPRS module 132 in policy control node 13 and the 3rd ZigBee module 131 being attached thereto
Inside is configured, and when mobile phone sends information 0 to GPRS module 132, the 3rd ZigBee module 131 sends data acquisition
Collection order；When triggering device and sending information 1 to GPRS module 132, the 3rd ZigBee module 131 sends and stops data
Acquisition；
Step 2: when vehicle sails tunnel into, mobile phone send information 0 to the GPRS module 132 in policy control node 13,
GPRS module 132 in policy control node 13 transfers data to connected by serial ports after receiving message
Three ZigBee module 131, described 3rd ZigBee module 131 the 2nd ZigBee in all data acquisition nodes 12
Module 121 sends data acquisition command；
Step 3: ARM data acquisition and memory module 122 in each data acquisition node 12 receive data acquisition by serial ports
Collection is ordered laggard circulation of qi promoting pressure data acquisition and is preserved by the corresponding data collected；
Step 4: when vehicle rolls tunnel away from, mobile phone sends information 1 to the GPRS module 132 in policy control node 13；
GPRS module 132 in policy control node 13 transfers data to the connected 3rd by serial ports after receiving message
ZigBee module 131, described 3rd ZigBee module 131 second ZigBee module in all data acquisition nodes 12
121 send stopping data acquisition command；
Step 5: ARM data acquisition and memory module 122 in each data acquisition node 12 receive stopping by serial ports
Data acquisition is stopped after data acquisition command；
Step 6: the 3rd ZigBee module 131 in described policy control node 13 is in i-th data acquisition node 12
The second ZigBee module 121 send and upload data command, wherein, i takes more than or equal to 1 and less than total data acquisition node
Sum natural number；ARM data acquisition and memory module 122 in i-th data acquisition node 12 are connect by serial ports
Receive the data feedback that compressed after uploading data command by the second ZigBee module 121 of being connected with its serial ports to gateway
Control the 3rd ZigBee module 131 in node 13；The 3rd ZigBee module 131 in policy control node 13 is by phase
Close compression data and be uploaded to Cloud Server 14 by GPRS module 132；
Step 7: take i=i+1, repeats step 6；
Step 8: user obtains associated compression data by PC 15 from Cloud Server 14.
The technique effect that the present embodiment obtains is also suitable with embodiment.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this area
Technical staff for, this utility model can have various modifications and variations.It is all within spirit of the present utility model and principle,
Any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. the acquisition system of an air pressure wave in tunnel, it is characterized in that, trigger device, tunnel portal to the Way out multiple data acquisition nodes (12) being sequentially arranged on tunnel inner wall, Cloud Server (14) that at least one policy control node (13) communicates wirelessly with described policy control node (13) and the PC (15) being wirelessly or non-wirelessly connected with described Cloud Server (14) including sail that tunnel and sending when rolling tunnel away from triggers message into for vehicle；
Described data acquisition node (12) includes the second ZigBee module (121) being connected with described triggering device and the ARM data acquisition being connected with described second ZigBee module (121) and memory module (122)；
Described policy control node (13) includes the 3rd ZigBee module (131) being connected respectively and the GPRS module (132) being connected with described 3rd ZigBee module (131) and described Cloud Server (14) respectively with described second ZigBee module (121) and described triggering device；
Or, described data acquisition node (12) includes the second ZigBee module (121) and the ARM data acquisition being connected with described second ZigBee module (121) and memory module (122)；
Described policy control node (13) includes the 3rd ZigBee module (131) being connected with described second ZigBee module (121) and the GPRS module (132) being connected respectively with described 3rd ZigBee module (131), described Cloud Server (14) and described triggering device.
The acquisition system of air pressure wave in tunnel the most according to claim 1, it is characterised in that described policy control node (13) is arranged on the outside of tunnel portal or outlet；The processor chips of described second ZigBee module (121) and described 3rd ZigBee module (131) are CC2530 chip；
The processor chips of described ARM data acquisition and memory module (122) are S3C2410 chip, it include with the ARM data acquisition module (1221) of described second ZigBee module (121) both-way communication and with the SD card (1222) of described ARM data acquisition module (1221) both-way communication, the circuit connection of described SD card (1222) is SD pattern；
Communication is carried out by Ethernet between described Cloud Server (14) and described PC (15)；
It is connected for bidirectional wireless communication between described second ZigBee module (121) with described 3rd ZigBee module (131).
3. according to the acquisition system of the air pressure wave in tunnel described in claim 1-2 any one, it is characterised in that described triggering device is the mobile phone (16) with described GPRS module (132) wireless connections.
4. according to the acquisition system of the air pressure wave in tunnel described in claim 1-2 any one, it is characterised in that described triggering device includes that being separately positioned at least two outside tunnel portal and outside tunnel exit triggers node (11)；
Described triggering node (11) includes the first ZigBee module (111) being connected with described second ZigBee module (121) and described 3rd ZigBee module (131) respectively and is connected with described first ZigBee module (111) and sails tunnel into and vehicle rolls the detection part (112) in tunnel away from for detecting vehicle；
The first ZigBee module (111) between two described triggering nodes (11) is connected with each other.
The acquisition system of air pressure wave in tunnel the most according to claim 4, it is characterized in that, the distance between distance and another described triggering node (11) and tunnel exit between a described triggering node (11) and tunnel portal is 100-200 rice；Multiple described data acquisition nodes (12) are equidistantly distributed, and the distance between adjacent two described data acquisition nodes (12) is 20-100 rice；
The processor chips of described first ZigBee module (111) are CC2530 chip；
Described detection part (112) is that ultrasonic sensor or infrared receiving/transmission are to pipe.
The acquisition system of air pressure wave in tunnel the most according to claim 5, it is characterised in that
The model of described ultrasonic sensor is KS103H；
The output switch parameter pin of pipe is connected by SCL pin or the described infrared receiving/transmission of described ultrasonic sensor with the P0.1 foot IO of described first ZigBee module (111)；
The K15 pin TXD0 of described ARM data acquisition and memory module (122) is connected with the P0.2 pin RX of described second ZigBee module (121), and the K17 pin RXD0 of described ARM data acquisition and memory module (122) is connected with the P0.3 pin TX of described second ZigBee module (121).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620102523.1U CN205541378U (en) | 2016-02-01 | 2016-02-01 | Collection system of tunnel pressure wave |
Applications Claiming Priority (1)
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