CN205880637U - Based on zigBee radio communication reservoir safety on -line monitoring system - Google Patents
Based on zigBee radio communication reservoir safety on -line monitoring system Download PDFInfo
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- CN205880637U CN205880637U CN201620773857.1U CN201620773857U CN205880637U CN 205880637 U CN205880637 U CN 205880637U CN 201620773857 U CN201620773857 U CN 201620773857U CN 205880637 U CN205880637 U CN 205880637U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a based on zigBee radio communication reservoir safety on -line monitoring system, include: surveillance center station and long -range survey station, long -range survey station includes remote terminal unit RTU, zigbee terminating network and sensor, remote terminal unit RTU passes through the zigbee terminating network and the sensor is wireless continuous for realize the acquisition and display of data, the data of gathering transmit the computer at surveillance center station to with the mode of ultrashort wave in, and carry out analysis processes, for the flood control, the drought resisting real -time data that provides. The utility model discloses a zigBee is short distance, low rate, wireless transmission network technique, has characteristics such as low cost, low -power consumption, low rate, low delay, data security, has realized between each monitor sensor node and the electric isolation between each monitor sensor node and the remote terminal unit RTU, has advantages such as security and reliability height, construction convenience, wiring are simple, with low costs.
Description
Technical field
This utility model belongs to reservoir safety monitoring technical field, particularly relates to a kind of based on ZigBee radio communication reservoir
Safety on-line monitoring system.
Background technology
Reservoir have flood control, irrigate, supply water, effect, the safety of reservoir and people life property safety's manner of breathing such as generating
Close, therefore most important to the safe on-line monitoring of reservoir.Reservoir safety monitoring information include water level, rainfall, flow velocity, seepage flow,
The many kinds of parameters such as water quality, wind speed, humidity, temperature, air pressure, saturation.Different dams is different to the requirement of monitoring information, required
The information parameter measured is the most different.From the most so far, in domestic more than 80,000 built dam, it is left that earth and rockfill dam accounts for 90%
Right.And for earth and rockfill dam dam body, seepage failure is its Common Diseases, designs a set of reliable monitoring system and be to ensure that reservoir is pacified
Complete indispensable measure.The height of earth and rockfill dam saturation position is the most important factor affecting dam body seepage stability and Against Sliding Stability
One of.For earth and rockfill dam infiltration water spill point infiltration gradient steeper time, dam slope will occur stream soil, piping, even come down, collapse
Dam.In real time earth and rockfill dam saturation is carried out on-line monitoring, stably provide scientific basis for reservoir safety operation, safety of dam body.
In order to understand the change in location of saturation in earth dam, grasp the dam body infiltration situation at run duration, it is necessary to bury underground in dam body
Pressure-measuring pipe, the data transmitting out by pressure-measuring pipe determine Earth-rock Dam Seepage Line.Reservoir dam is distributed in field, and spring, reservoir area was empty
Air humidity degree is bigger, and soil moisture content is high, and resistivity is low, is the place being the most easily struck by lightning.Existing monitoring system uses wired
485 connected modes, and the Sensor monitoring node being positioned on dam is many, and signal line is the longest, and this gives circuit itself and supervises
The lightning protection of examining system brings big difficulty, is easily struck by lightning, and causes the damage of associate device.
Reservoir safety monitoring plays an important role in reservoir operational management, in existing system, gathers data and generally adopts
With wire transmission modes based on 485 serial ports, there is difficult wiring, long construction period in this cable network, cost is high and is easily subject to certainly
The shortcomings such as right lightning discharge impact.
Summary of the invention
The purpose of this utility model is to provide a kind of based on ZigBee radio communication reservoir safety on-line monitoring system, purport
There is cable network solving the monitoring of existing reservoir safety to there is difficult wiring, long construction period, cost high and easily by nature
The problem of lightning discharge impact.
This utility model is achieved in that a kind of based on ZigBee radio communication reservoir safety on-line monitoring system, institute
State and include based on ZigBee radio communication reservoir safety on-line monitoring system: remotely survey station and monitoring central station；
Described long-range survey station, is used for gathering data；
Described monitoring central station, for the process of data；
Described long-range survey station includes remote-terminal unit RTU, Zigbee terminal network and sensor；Remote-terminal unit
RTU is connected with sensor wireless by Zigbee terminal network, is used for realizing collection and the display of data, the data collected with
Ultrashort mode is transferred in the computer of monitoring central station, and analyzes and processes, and for flood control, drought resisting provides number in real time
According to.
Further, described Zigbee terminal network includes terminal unit and coordinator；
Terminal unit, is connected with sensor by 485 interfaces in terminal unit, for organizing transmission data；
Coordinator, is connected with remote-terminal unit RTU by 485 interfaces in coordinator, for providing the number transmitted
According to.
Further, described terminal unit includes: 485 modules, auxiliary power module, CPU module and ZigBee terminal；
485 modules, by receiving data, sending out data pin end (the 1 of MAX3485 chip, 4 pins, circuit diagram is as shown in Figure 3)
With the single-chip microcomputer asynchronous serial module of CPU module (the 27 of single-chip microcomputer PIC18LF23K22,28 pins, circuit diagram is as shown in Figure 4)
It is connected, is used for realizing data and receives with 485 forms or send；
CPU module, by the two of single-chip microcomputer asynchronous serial communication modules, (the 17 of single-chip microcomputer PIC18LF23K22,18 draw
Foot and 27,28 pins, circuit diagram is as shown in Figure 4) respectively with 485 modules, ZigBee terminal (the 2 of XBEE-PRO module, 3 pins,
Circuit diagram is as shown in Figure 5) it is connected, it is used for realizing communication, i.e. realizes the transformation of wire transmission mode and wireless transmission method；
ZigBee terminal, is connected with the asynchronous serial communication module of single-chip microcomputer by asynchronous serial input/output terminal, is used for
Realize the wireless receiving and dispatching of data；
Auxiliary power module, for powering to 485 modules, CPU module and ZigBee terminal, auxiliary power module output unit
Point (electric capacity C12 both end voltage 3.3V, circuit diagram is as shown in Figure 6) and 485 modules (the 8 of MAX3485 chip, 5 pins, circuit diagram
As shown in Figure 3), CPU module (the 20 of single-chip microcomputer PIC18LF23K22,19 pins, circuit diagram is as shown in Figure 4) and ZigBee terminal
The input power part of (the 1 of XBEE-PRO module, 10 pins, circuit diagram is as shown in Figure 5) connects.
This utility model provide based on ZigBee radio communication reservoir safety on-line monitoring system, ZigBee technology is one
Plant towards short distance, framework is simple, possess prolongation battery life, low consumpting power and the wireless communication technique of low transmission rate.
ZigBee has low cost and (by significantly simplifying agreement (less than the 1/10 of bluetooth), reduces the requirement to communication controler, press
Forecast analysis, with the 8 8-digit microcontroller measuring and calculating of 805l, Full Featured host node needs 32KB code, and subfunction node is few to 4KB
Code, and ZigBee exempts from agreement patent fee), low-power consumption (owing to the transmission maximum data digit rate of ZigBee is 250kpbs, sends out
Penetrate that power is extremely low is only 1mW, increase to launch after power and be also only 50mW, add and terminal can be allowed to enter park mode), low speed
Rate (maximum data digit rate is 250kpbs), transmission range are short, and (transmission range is typically in the range of between 10～100m, sends out increasing RF
After penetrating power, it is also possible to increase to 1～3km), (response speed of ZigBee is very fast, typically proceeds to work shape from sleep for low time delay
State only needs l 5ms, and node connects entrance network only needs 30ms, saves electric energy further.Compare, bluetooth needs 3～10s,
WiFi needs 3s), data safety (ZigBee provides three level security patterns, including without security settings, use and meet people and control inventory
(ACL) preventing from illegally obtaining data and using the symmetric cryptography of Advanced Encryption Standard (AESl 28), each application can be flexible
Determine its security attribute) etc. characteristic, (ZigBee can use starlike, sheet with bigger network capacity to have powerful networking capability
Shape and mesh network topology, managed some child nodes by a host node, and most host nodes can manage 254 child nodes,
Host node also by last layer network node control, at most can form the big net of 65000 nodes simultaneously.Comparing, bluetooth is
How can only form 10 nodes, WiFi at most can only form 100 nodes), overcome the defect of wired connection, and can reach be
The purpose of system information real-time Transmission.This utility model achieves between each Sensor monitoring node and each Sensor monitoring joint
Electrical isolation between point and remote-terminal unit RTU, have safety and reliability height, easy construction, wiring simply, cost
The advantage such as low；After Foochow inner collar medium-sized reservoir field adjustable and operation, stable, reliable, reach intended design
Purpose and requirement.This utility model builds a network by ZigBee wireless communication technology, uses starshaped net topology,
The sensor node adding this network is carried out earth and rockfill dam reservoir safety information gathering and analysis, it is to avoid the wiring of cable network
And Cost Problems, solve in reality system highlightedly easily by natural electric discharge phenomena bands such as thunderbolts by wireless communication technique simultaneously
The system failure problem come, solves multiple 485 transceivers damages that monitoring system based on 485 buses causes in thunder and lightning transition
Problem, improves the reliability that system is constituted, and the difficulty simultaneously connected up for the TT&C system of spaced point and transfer point provides to be understood
Approach certainly；The wireless transmitting system completed has been applied to Foochow inner collar medium-sized reservoir safety on-line monitoring system, by being
The test of system and analysis, well complete anticipated requirement, and can the transmission that realize data of accurate stable.
Accompanying drawing explanation
Fig. 1 be this utility model embodiment provide based on ZigBee radio communication long-range survey station structured flowchart.
Fig. 2 is 485 module circuit diagrams that this utility model embodiment provides.
Fig. 3 is the CPU module circuit diagram that this utility model embodiment provides.
Fig. 4 is the ZigBee module circuit diagram that this utility model embodiment provides.
Fig. 5 is the auxiliary power module circuit diagram that this utility model embodiment provides.
Fig. 6 is the circuit theory diagrams of the auxiliary power module that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, to this
Utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this practicality
Novel, it is not used to limit this utility model.
Below in conjunction with the accompanying drawings application principle of the present utility model is explained in detail.
Including based on ZigBee radio communication reservoir safety on-line monitoring system of this utility model embodiment: remotely survey station
With monitoring central station two parts.
Remotely survey station is mainly responsible for gathering data, and monitoring central station is mainly responsible for the process of data；Remotely survey station mainly by
RTU, power supply, communication equipment, spark gap and sensor composition；RTU is connected with sensor wireless by Zigbee terminal network, real
The collection of existing data and display；The data collected are transferred in the computer of monitoring central station by RTU in ultrashort mode,
And analyze and process, for flood control, drought resisting provides real time data.
RTU is the core of long-range survey station, mainly realizes: 1, earth and rockfill dam reservoir safety information real-time automatic collecting and display；
2, according to the time set, timing acquiring real-time earth and rockfill dam reservoir safety information；3, the instruction of response monitoring central station, in time
Send real-time earth and rockfill dam reservoir safety information.
As in figure 2 it is shown, buried pressure transducer in Earth-rockfill Dam by wired 485 forms the osmotic pressure in dam
And temperature data is sent to ground, then process through terminal unit, launch data by Zigbee terminal wireless, by being positioned at machine
Zigbee coordinator in room receives, and coordinated device processes, and the RTU being located in machine room is given in the most wired very short distance.
Visible, there is no wired connection, for independent, with machine between each pressure transducer (Zigbee terminal unit) being distributed on dam
RTU in room etc. do not have wired connection.Not only need not wiring complicated on big dam facing, also avoid because wired connection causes appearance
Easily it is struck by lightning.
Below in conjunction with the accompanying drawings application principle of the present utility model is further described.
As it is shown in figure 1, introduce ZigBee terminal network in long-range survey station part, it includes terminal unit and coordinator, eventually
End equipment is connected with sensor by 485 interfaces in terminal unit, organizing transmission data；Coordinator is by coordinator
485 interfaces are connected with RTU, it is provided that the data transmitted；Its hardware principle block diagram is as shown in Figure 1.Wherein CPU module mainly realizes
Wired and wireless between conversion.
Terminal unit farther includes: 485 modules, auxiliary power module, CPU module and ZigBee terminal.
485 modules are connected with the single-chip microcomputer asynchronous serial module of CPU module by receipts data, a data pin end, and control
Making foot DE and RE connects together and is controlled by the RB5 of single-chip microcomputer, mainly realizes data and receives with 485 forms or send；Module is adopted
Using MAX3485 chip, its running voltage is 3.3V, low-power consumption transceiver, has a driver and one in each device
Receptor, driver has short circuit current and limits, it is possible to by Thermal shutdown circuit, driver output is set to high-impedance state,
Prevent excessive power attenuation.Receptor input has fail safe characteristic, when input pull-down, it can be ensured that logic high
Output.In order to transient suppression disturbs, such as thunder and lightning, static discharge, switches of power system interference etc., circuit uses bypass protection method,
I.e. at A, B end of circuit, connect Transient Suppression Diode.Circuit is as shown in Figure 3.Wherein resistance 120 Europe is as impedance matching
Use, if transmission line can not connect apart from short.
CPU module design, by the two of single-chip microcomputer asynchronous serial communication modules respectively with 485 modules, ZigBee terminal
It is connected, it is achieved communication, is i.e. realized the transformation of wire transmission mode and wireless transmission method by this module.This module uses
PIC18LF23K22, it is the super low-power consumption management single-chip microcomputer using XLP, is suitable for reservoir safety monitoring longtime running.It
Peripheral hardware feature mainly has: two enhanced general synchronous/asynchronous transceiver modules: shake inside support 485,232 and LIN, use
Swing device 232 work, automatically waken up when receiving gap character, auto-baud-detect.Circuit diagram is as shown in Figure 4.
ZigBee terminal uses ZigBee wireless communication module, and ZigBee wireless communication module inputs defeated by asynchronous serial
Go out end to be connected with the asynchronous serial communication module of single-chip microcomputer, mainly realize the wireless receiving and dispatching of data.This module uses XBEE-PRO
OEM RF wireless radio frequency modules, operates with Zigbee protocol, supports the unique need of low cost, power consumption wireless sensor network
Engineering.It reaches 1500 meters in outdoor transmissions distance, launches power 50mW, and receiver sensitivity is the transmission of-100dBm, RF data
Rate reaches 250Kb/s, and running voltage is 2.8-3.4V.Its circuit diagram is as shown in Figure 5.
Auxiliary power module, mainly powers to modules, owing to system works in field, also avoids each terminal simultaneously
Between wired connection, the power supply of the most each terminal uses 3W/15V small-power solar panel and low capacity 12V/4Ah to store
Battery is each module for power supply.The running voltage of each chip in operating circuit is all 3.3V, and external power supply is to use 12V
Accumulator, it is therefore desirable to be 3.3V voltage 12V voltage transformation.Auxiliary power module in system uses LM2597-3.3 blood pressure lowering
BUCK converts chip, and this chip is 3.3V output 12V voltage transformation, and outer member quantity is few, uses simple.Its circuit diagram is such as
Shown in Fig. 6.Sustained diode 5, bearing maximum voltage is input voltage 12V, and give each chip power supply, its power all than
Less, also imply that the electric current flowing through diode is less, this is designed with 1N5817, and (Mean Forward Current is 1A, reversely
Voltage 20V).From circuit, when BUCK circuit malfunction, now D1 diode turns on because bearing forward voltage, replaces
BUCK circuit gives the power supply of each chip, it is achieved UPS, improves the reliability of circuit work.The effect of D2 diode is mainly
When preventing battery from connecting, current flowing backwards is in LM2597 chip, and the effect of ZD3, ZD4 is lightning protection.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (3)
1. one kind based on ZigBee radio communication reservoir safety on-line monitoring system, it is characterised in that described based on ZigBee without
Line communication reservoir safety on-line monitoring system includes: remotely survey station and monitoring central station；Remotely survey station is wireless with monitoring central station
Communication；
Described long-range survey station includes remote-terminal unit RTU, Zigbee terminal network and sensor；Remote-terminal unit RTU leads to
Cross Zigbee terminal network to be connected with sensor wireless.
2. as claimed in claim 1 based on ZigBee radio communication reservoir safety on-line monitoring system, it is characterised in that described
Zigbee terminal network includes terminal unit and coordinator；
Terminal unit is connected with sensor by 485 interfaces in terminal unit, and coordinator is by 485 interfaces and remote terminal list
Unit RTU is connected.
3. as claimed in claim 2 based on ZigBee radio communication reservoir safety on-line monitoring system, it is characterised in that described
Terminal unit includes: 485 modules, auxiliary power module, CPU module and ZigBee terminal；
485 modules are connected with single-chip microcomputer asynchronous serial module by receipts data, a data pin end, and CPU module passes through single-chip microcomputer
Two asynchronous serial communication modules be connected with 485 modules, ZigBee terminal respectively, ZigBee terminal is inputted by asynchronous serial
Outfan is connected with the asynchronous serial communication module of single-chip microcomputer, and auxiliary power module and 485 modules, CPU module and ZigBee are eventually
End module connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620773857.1U CN205880637U (en) | 2016-07-21 | 2016-07-21 | Based on zigBee radio communication reservoir safety on -line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620773857.1U CN205880637U (en) | 2016-07-21 | 2016-07-21 | Based on zigBee radio communication reservoir safety on -line monitoring system |
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| CN205880637U true CN205880637U (en) | 2017-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785603A (en) * | 2019-02-21 | 2019-05-21 | 福州普贝斯智能科技有限公司 | A kind of RTU system of micro energy lose |
-
2016
- 2016-07-21 CN CN201620773857.1U patent/CN205880637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785603A (en) * | 2019-02-21 | 2019-05-21 | 福州普贝斯智能科技有限公司 | A kind of RTU system of micro energy lose |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20170721 |