CN205563188U - Node state monitoring system based on networking hydraulic turbine - Google Patents
Node state monitoring system based on networking hydraulic turbine Download PDFInfo
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- CN205563188U CN205563188U CN201620254436.8U CN201620254436U CN205563188U CN 205563188 U CN205563188 U CN 205563188U CN 201620254436 U CN201620254436 U CN 201620254436U CN 205563188 U CN205563188 U CN 205563188U
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- water turbine
- turbine set
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- hydraulic turbine
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Abstract
The utility model discloses a node state monitoring system based on networking hydraulic turbine to the ATmega8515 singlechip is the core, through TLC2543 conversion chip, becomes data signal with the signal conversion who gathers, sends ATmega8515 to, and the storage is in the CY62256 chip simultaneously, rethread MAX485 transceiver and RS 485 the bus is to signal transfer. Through test and the performance analysis of experiment to this design, the actual result shows: adopt the node design of networked hydraulic turbine state monitoring, realized hydraulic turbine's data acquisition, storage, conversion and transmission to accomplish real -time supervision and remote monitoring, had the value of popularization and application.
Description
Technical field
This utility model relates to a kind of water turbine set equipment, particularly relates to a kind of node state based on networking water turbine set monitoring system.
Background technology
China's hydraulic power potentials is currently to possess the second largest energy of scale development condition, the first big regenerative resource, within 2011, central authorities' " file " Article 4 the 4th is reasonable development hydraulic power potentials, building one of important goal as the most quickly water resource infrastructure, therefore waterpower development is the strategic emphasis of following 15 years China's energy developments.This making research and is to ensure that China's electric power develops in a healthy way and the needs of national energy Environmental security, person realizes enterprise value and the needs of social value's harmony win-win to be also Electricity Investment.
Water turbine set is the nucleus equipment of water power production process, the operation health status of turbine-generator units be not only related to the safety of hydroelectric power plant be also directly connected to hydroelectric power plant can be to power grid security, provide reliable electric power economically.It is thus desirable to monitor the running status of water turbine set in real time, reporting the parameter not in setting in time, reflect the present situation to staff, minimizing water turbine set is because of fault, and the equipment loss brought, resources loss and economic loss.
Utility model content
The purpose of this utility model is that provides a kind of node state based on networking water turbine set to monitor system to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose:
This utility model includes field node, monitoring station, switch, operator station, engineer station, database server, Web server and fire wall, multiple described field node is set on one water turbine set, being installed on the multiple described field node on a water turbine set and a monitoring station connects, multiple monitoring stations are connected with described engineer station, described database server, described Web server and described fire wall by described switch.
Further, described field node is made up of the chip of ATmega8515 single-chip microcomputer, CY62256 memorizer, SN74LS373N latch, MAX485 transport module, the analog-digital converter of TLC2543 and AD586JN.
The beneficial effects of the utility model are:
This utility model is that a kind of node state based on networking water turbine set monitors system, compared with prior art, this utility model not only provides parameter clear and definite when equipment runs, also alert in time when equipment fault, save the time of trouble-shooting equipment, extend the service life of equipment, reduce loss, hydraulic turbine monitoring system is had great meaning.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present utility model；
Fig. 2 is field node circuit theory diagrams of the present utility model；
Fig. 3 is field node flow chart of the present utility model；
Fig. 4 is serial communication flow chart of the present utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1: this utility model includes field node, monitoring station, switch, operator station, engineer station, database server, Web server and fire wall, multiple described field node is set on one water turbine set, being installed on the multiple described field node on a water turbine set and a monitoring station connects, multiple monitoring stations are connected with described engineer station, described database server, described Web server and described fire wall by described switch.The program is made up of process layer, monitor layer and station level, have employed RS-485 bus and Ethernet transmission means.The structured flowchart of networking water turbine set status monitoring is as it is shown in figure 1, slave computer is made up of some water turbine set and field node；Host computer is made up of station level and detection layers.In process layer, in order to improve speed and the real-time of transmission data, RS-485 bus carries out segmentation according to the quantity of water turbine set, one network segment controls a water turbine set, by the data acquisition node various parameters when each water turbine set gathers hydraulic turbine operation, it is sent on the PC of monitoring station by MAX485 transceiver and RS-485 bus, the monitoring running state of a corresponding water turbine set of PC；It is saved in the position that data base specifies, it is stipulated that will not delete in the time simultaneously；Achieve on-line monitoring.Parameter when all water turbine set are run by each PC of monitoring station by switch and state are sent to each PC and the server of station level, owing to Web server can outwards transmit information, from there through Internet, the water turbine set information gathered is sent to other servers and PC, thus realizes remotely monitoring.
As shown in Figure 2: described field node is made up of the chip of ATmega8515 single-chip microcomputer, CY62256 memorizer, SN74LS373N latch, MAX485 transport module, the analog-digital converter of TLC2543 and AD586JN.Field node is mainly responsible for gathering and transmit parameters when water turbine set runs, including generating unit speed monitoring, the control level monitoring of each pump of the hydraulic turbine, hydrogenerator each portion temperature monitoring, the each oil level of electromotor and water level monitoring, axial vibration and throw monitoring, electric parameters monitoring, pressure monitoring etc..The signal gathered includes analog input, On-off signal, analog output, output switch parameter.Node is sent to, through RS-485 bus, the data message gathered on the PC of monitoring station.
Field node, with ATmega8515 single-chip microcomputer as core, the following is the distribution of the I/O mouth line of single-chip microcomputer:
1) PA.0-PA.7 of port PA is connected as the 1D-8D of address date multiplex bus with latch SN74LS373N, is transferred data to the I/O0-I/O7 of memorizer CY62256 by bus simultaneously.ALE allows signal to be connected with the EL pin of 74LS373 as latching.
2) PC.0-PC.6 of port PC writes data into CY62256 chip, A8-A14 address wire the position specified.PC7 control/CE effectiveness.
3) transmission of PB3 control signal and reception, PD.0 and PD.1 of port PD, respectively as RXD and TXD, when single-chip microcomputer and host computer carry out radio communication, is connected with the corresponding pin of transceiver module.
Processing module
Processing module is with ATmega8515 single-chip microcomputer as core.ATmega8515 single-chip microcomputer be Atmel company release based on strengthen risc architecture, high-performance, 8 AVR microcontrollers [3] of low-power consumption.Its kernel has optional storage space and two difference in functionality different bit timing device/enumerators outside 130 instructions, 35 universaling I/O ports, 32 general purpose working registers, the SPI serial line interface of main frame/slave mode, 64K bytes, has abundant hardware resource.Such a construction increases code operational efficiency, be 10 times of common CISC microprocessor data throughput, therefore improve the speed of data acquisition.The field node now monitored due to water turbine set needs to gather mass data, and ATmega8515 single-chip microcomputer internal capacity can not meet demand, therefore uses CY6625 chip, extends the data storage of 32K byte.
Modular converter
Modular converter uses the TLC2543 chip of serial AD conversion.TLC2543 is the 12 Bits Serial analog-digital converters that TI company releases, and uses switching capacity Approach by inchmeal technology to complete A/D transformation process, and by principal and subordinate's duplex mode, is delivered to by signal on ATmega8515 single-chip microcomputer.Owing to using 11 analog input channels, save single-chip processor i/o resource, and resolution is higher, is widely used in instrument and meter.
Transport module
Transport module uses MAX485 chip and RS-485 to complete reception and the transmission of signal.There is inside MAX485 a driver and a receptor.The Slew Rate of chip driver is not limited, make transfer rate reach 2.5Mbps, therefore improve the transmission speed of data.Driver also has the function that short circuit current limits, and in order to prevent excessive power attenuation, by Thermal shutdown circuit, driver output can be set to high-impedance state.When input pull-down, it can be ensured that logic high exports.Therefore receptor input has fail safe characteristic.Therefore [4-5] in RS-485 bus can be transferred data to reliably.
Communication module
In hydraulic turbine monitoring system, need to solve multistation, the problem of telecommunication, so native system uses RS-485 serial interface standard.Level conversion is RS-485 fiduciary level through RS-485 change-over circuit by host computer standard serial interface, with slave computer communication；Transistor-Transistor Logic level is converted to RS-485 fiduciary level by MAX485 chip by the serial signal of the next single-chip microcomputer, it is achieved network service.
The workflow design of node
The parameters during hydraulic turbine operation ATmega8515 single-chip microcomputer USART synchronous asynchronous serial line interface by field node, stores data in memorizer.In order to meet the demand of multi-computer communication, UCSRA arranges MPCM position；Working as MPCM=0, receiver receives address frame and Frame；Working as MPCM=1, receiver receives address frame and filters character frame.Owing to each water turbine set constantly wants reported data, in order to prevent single-chip microcomputer storage inside inadequate, extend CY6625 chip, add the data storage of 32K byte.Complete analogue signal by TLC2543 conversion chip again and be converted to the function of digital signal, use SPI mode to transmit a signal to ATmega8515.Data are delivered to RS-485 bus by MAX485 chip by ATmega8515 single-chip microcomputer, then are sent to monitor layer.
ATmega8515 single-chip microcomputer controls the operation of field node by C language.ATmega8515 sends collection data command, single-chip microcomputer by node from water turbine set gather required for data, convert a signal into digital signal by TLC2543 chip, and be stored in external memory storage；Return to single-chip microcomputer simultaneously, compared by inside, it is judged that whether data are in setting.If in setting, do not upload data；If not in setting, alert and be uploaded to host computer.Fig. 3 is the flow chart of field node.
Monitor layer is by controlling the collection of data and the turbine state monitoring that communicated.Monitoring station is a high performance industry control PC, is connected by each field node of RS-485 and slave computer, is connected by switch machine server each with the station level of host computer and PC, and therefore the communication of upper and lower computer is realized by RS-485 bus and exchange.The serial multi-computer communication of serial ports Yu ATmega8515 single-chip microcomputer in order to complete monitoring station IPC, it is desirable to their communication protocol must be consistent with data form.It is transferred to station level again, it is achieved remotely monitoring and control by switch.Parameters during the monitoring station collection site node hydraulic turbine operation of monitor layer, program flow diagram is as shown in Figure 4.
Test and analysis:
In order to verify the feasibility of design, set up field node, tested, obtain following parameter.
If table 1 is the temperature that No. 3 water turbine set each several parts can be detected, this data signal can compare with the data set, it may be judged whether in prescribed limit；If in setting, the most do not upload biography data；If not in setting, then transmit data to host computer, and alert.As shown in table 1, table 2.As can be seen here, this node design can preferably complete the collection of water turbine set runtime data, changes and communicate.
The temperature that unit gathers sent out by 1 No. 3 water wheels of table
The temperature of 2 No. 3 water turbine set transmission of table
Sum up:
This utility model gives the design of networking water turbine set status monitoring node, compared with traditional hydraulic turbine monitoring system, the design node uses the TLC2543 chip of ATmega8515 single-chip microcomputer, serial AD conversion, low-power consumption transceiver MAX485 chip, completes water turbine set and remotely monitors.Test result indicate that, in actual motion, not only provide parameter clear and definite when equipment runs, also alert in time when equipment fault, save the time of trouble-shooting equipment, extend the service life of equipment, reduce loss, hydraulic turbine monitoring system is had great meaning.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (2)
1. node state based on a networking water turbine set monitoring system, it is characterized in that: include field node, monitoring station, switch, operator station, engineer station, database server, Web server and fire wall, multiple described field node is set on one water turbine set, being installed on the multiple described field node on a water turbine set and a monitoring station connects, multiple monitoring stations are connected with described engineer station, described database server, described Web server and described fire wall by described switch.
A kind of node state based on networking water turbine set the most according to claim 1 monitoring system, it is characterised in that: described field node is made up of the chip of ATmega8515 single-chip microcomputer, CY62256 memorizer, SN74LS373N latch, MAX485 transport module, the analog-digital converter of TLC2543 and AD586JN.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620254436.8U CN205563188U (en) | 2016-03-30 | 2016-03-30 | Node state monitoring system based on networking hydraulic turbine |
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| CN201620254436.8U CN205563188U (en) | 2016-03-30 | 2016-03-30 | Node state monitoring system based on networking hydraulic turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077813A (en) * | 2019-09-26 | 2020-04-28 | 深圳市东深电子股份有限公司 | Dam safety monitoring data automatic acquisition system and method |
-
2016
- 2016-03-30 CN CN201620254436.8U patent/CN205563188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077813A (en) * | 2019-09-26 | 2020-04-28 | 深圳市东深电子股份有限公司 | Dam safety monitoring data automatic acquisition system and method |
| CN111077813B (en) * | 2019-09-26 | 2021-04-27 | 深圳市东深电子股份有限公司 | Dam safety monitoring data automatic acquisition system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |