CN203689117U - Distributed RTU system - Google Patents
Distributed RTU system Download PDFInfo
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- CN203689117U CN203689117U CN201320882723.XU CN201320882723U CN203689117U CN 203689117 U CN203689117 U CN 203689117U CN 201320882723 U CN201320882723 U CN 201320882723U CN 203689117 U CN203689117 U CN 203689117U
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- 238000004891 communication Methods 0.000 claims description 8
- 241000218691 Cupressaceae Species 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
A distributed RTU system comprises an upper computer, a main controller, a DTU, a main CAN bus, an extension CAN bus, an extension CAN bus repeater, multiple RTUs and multiple sensors; the RTU is connected with a field sensor and a field device, and is connected with the main CAN bus or the extension CAN bus; the extension CAN bus through the CAN bus repeater is connected with the main CAN bus; the main controller is connected with the main CAN bus; and the main controller is connected with the upper computer through the DTU. The distributed RTU system reduces the operation burden of the main controller MCU, reduces the wiring complexity, reduces the post-maintenance and upgrade cost, and reduces the equipment cost. The distributed RTU system can monitor the operation condition of each station, and can control the RTU of each station, so that the field repair and debugging are facilitated.
Description
Technical field
The utility model relates to a kind of tele-control system, and specifically a kind of distributed RTU system that is applied to water supply network monitoring field, belongs to water resources technical field.
Background technology
RTU is the equipment that can automatically complete collection, storage, transmission and the control of the hydrology (regimen, water resource) parameter.RTU, in Supervisory control, is mainly used in water metering, pressure survey and provides field data for Supervisory control.At present, RTU, in water supply network monitoring, mainly uses single MCU, and MCU not only will manage spot sensor, controls topworks, and is bearing the task of communicating by letter with Managing system of above position machine, and over-burden easily to cause MCU; Especially the monitoring site mode of connection complexity of multi-site, multiparameter, has increased cost of labor; Later stage increases website and need increase separately RTU equipment, again lays circuit, has increased maintenance upgrade cost; Every RTU equipment the inside all needs to place DTU communication module, has increased equipment cost.
Summary of the invention
For above-mentioned deficiency, the utility model provides a kind of distributed RTU system, its not only production cost low and also be convenient to safeguard.
The technical scheme in the invention for solving the technical problem is: a kind of distributed RTU system, comprise host computer, it is characterized in that, also comprise master controller, DTU, main CAN bus, expansion CAN bus, CAN bus repeater, some RTU and some sensors, described RTU is connected with field apparatus with spot sensor, and be connected with main CAN bus or expansion CAN bus, described expansion CAN bus is connected with main CAN bus by CAN bus repeater, described main CAN bus is connected with master controller, and described master controller is connected with host computer by DTU.
Preferably, described master controller comprises MCU, CAN transceiver, CAN interface, RS232 interface, RS232 communicating circuit, display screen and button, described CAN transceiver is connected with CAN interface with MCU respectively, described RS232 communicating circuit is connected with RS232 interface with MCU respectively, and described display screen is connected with MCU respectively with button; Described MCU comprises CAN controller.
Preferably, described RTU comprises MCU, CAN transceiver, CAN interface and communication interface, and described CAN transceiver is connected with CAN interface with MCU respectively, and described communication interface is connected with MCU; Described MCU comprises CAN controller.
Preferably, the MCU of described master controller and RTU all adopts CYPRESS PSOC5 platform series CY8C5386AXI single-chip microcomputer.
Preferably, the CAN transceiver of described master controller and RTU all adopts the TJA1050 chip that PHILIPS produces.
Preferably, described DTU comprises GPRS DTU.
The beneficial effects of the utility model are: the utility model is by adopting many MCU Cooperative Work Technology, the task that tradition is processed by single MCU is carried out associated treatment by master controller MCU with the MCU that is distributed in each website RTU and is completed, alleviated the work load of master controller MCU, over-burden to avoid causing master controller MCU; The RTU of master controller and each website carries out communication by CAN bus, and CAN bus transfer rate is fast, and real-time is good, and antijamming capability is strong, and wiring is easy, has reduced the complexity of wiring; The increase and decrease of the each website in Supervisory control region only need to be set on master controller, simple and convenient, has reduced later maintenance upgrade cost; Whole system only need be installed on DTU of master controller, has reduced equipment cost.Can ruly response host computer and the requirement of each website RTU by master controller, monitor the operation conditions of each website, each website RTU is implemented to control, facilitate on-site maintenance and debugging.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of master controller described in the utility model;
Fig. 3 is the structural representation of RTU described in the utility model.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in Figure 1, a kind of distributed RTU system of the present utility model, it comprises host computer, master controller, DTU, main CAN bus, expansion CAN bus, CAN bus repeater, some RTU and some sensors, described RTU is connected with field apparatus with spot sensor, and be connected with main CAN bus or expansion CAN bus, described expansion CAN bus is connected with main CAN bus by CAN bus repeater, described main CAN bus is connected with master controller, and described master controller is connected with host computer by DTU.
As shown in Figure 2, master controller described in the utility model comprises MCU, CAN transceiver, CAN interface, RS232 interface, RS232 communicating circuit, display screen and button, described CAN transceiver is connected with CAN interface with MCU respectively, described RS232 communicating circuit is connected with RS232 interface with MCU respectively, and described display screen is connected with MCU respectively with button; Described MCU comprises CAN controller.
As shown in Figure 3, RTU described in the utility model comprises MCU, CAN transceiver, CAN interface and communication interface, and described CAN transceiver is connected with CAN interface with MCU respectively, and described communication interface is connected with MCU; Described MCU comprises CAN controller.
As the preferred scheme of the utility model, the MCU of described master controller and RTU all adopts CYPRESS PSOC5 platform series CY8C5386AXI single-chip microcomputer, the TJA1050 chip that the CAN transceiver of described master controller and RTU all adopts PHILIPS to produce, described DTU comprises GPRS DTU.
The utility model designs based on PSOC5 platform and CAN bus, the CY8C5386AXI single-chip microcomputer that the MCU of master controller and RTU adopts Cypress to produce; The TJA1050 chip that the CAN transceiver of master controller and RTU adopts PHILIPS to produce; The SRJZ-C811 concentrator that master controller selects Shandong SanLong Intelligent Technology Co., Ltd to produce; The HS19264-8 display that the display screen of master controller adopts Chinese Noboru Industrial Co., Ltd. of Shen Zhen city to produce, the TD-0441 button that button adopts Chinese Gao Di Group Co.,Ltd to produce; The WIMB type water resource long-distance intelligent monitoring terminal that RTU adopts Shandong SanLong Intelligent Technology Co., Ltd to produce; The 232-CAN-E2 type CAN bus repeater that CAN bus repeater selects Qinhuangdao Lan Ma Electronic Science and Technology Co., Ltd. to produce; The GPRS DTU that the model that DTU selects Shenzhen grand power technology incorporated company to produce is HT7710.
CY8C5386AXI single-chip microcomputer adopts 32 bit processors, include the ARM Cortex-M3 core of 80M HZ, be applied to the occasion that needs high-performance processor, complexity, high-capacity FLASH, SRAM and real time operating system to support, pin can flexible configuration, the transmission (Tx) of CAN bus and receive (Rx) and can be configured on any one I/O; Primary processor is that the RTU of CY8C5386AXI integrates digital-quantity input interface, digital-quantity output interface, analog input interface, analog output interface circuit, pulse input interface, pulse output interface and CAN bus interface, not only can communicate with the sensor of various interface, and can also communicate with the equipment that possesses CAN controller and CAN transceiver; Primary processor is that the master controller of CY8C5386AXI has human-computer interaction device HS19264-8 LCDs, TD-0441 button, RS232 interface and CAN bus interface, can intercom mutually with the equipment with RS232 interface and CAN bus interface; 232-CAN-E2 type CAN bus repeater, the CAN interface of two-way standard, supports CAN bus V2.0A and V2.0B technical manual completely; DTU HT7710 has RS232 interface, can with communicate with the equipment of RS232 interface.
In the utility model, if RTU exceedes 1.2KM to the distance of master controller, need in CAN bus network, add CAN bus repeater, prevent the decay of differential wave, to extend the differential signal transmission distance in CAN bus network.Use HS19264-8 LCDs and TD-0441 button to increase each website in CAN bus, use button that each website RTU increasing is arranged and controlled, and show on liquid crystal, be conducive to man-machine interaction, meanwhile, can utilize button to send packet, the connectedness of testing each website to each website, and the mistake to link shows on liquid crystal, be conducive to the debugging maintenance to each website.
The above is preferred implementation of the present utility model; for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection domain of the present utility model.
Claims (6)
1. a distributed RTU system, comprise host computer, it is characterized in that, also comprise master controller, DTU, main CAN bus, expansion CAN bus, CAN bus repeater, some RTU and some sensors, described RTU is connected with field apparatus with spot sensor, and is connected with main CAN bus or expansion CAN bus, and described expansion CAN bus is connected with main CAN bus by CAN bus repeater, described main CAN bus is connected with master controller, and described master controller is connected with host computer by DTU.
2. a kind of distributed RTU system according to claim 1, it is characterized in that, described master controller comprises MCU, CAN transceiver, CAN interface, RS232 interface, RS232 communicating circuit, display screen and button, described CAN transceiver is connected with CAN interface with MCU respectively, described RS232 communicating circuit is connected with RS232 interface with MCU respectively, and described display screen is connected with MCU respectively with button; Described MCU comprises CAN controller.
3. a kind of distributed RTU system according to claim 1, is characterized in that, described RTU comprises MCU, CAN transceiver, CAN interface and communication interface, and described CAN transceiver is connected with CAN interface with MCU respectively, and described communication interface is connected with MCU; Described MCU comprises CAN controller.
4. according to a kind of distributed RTU system described in claim 2 or 3, it is characterized in that, the MCU of described master controller and RTU all adopts CYPRESS PSOC5 platform series CY8C5386AXI single-chip microcomputer.
5. according to a kind of distributed RTU system described in claim 2 or 3, it is characterized in that the TJA1050 chip that the CAN transceiver of described master controller and RTU all adopts PHILIPS to produce.
6. a kind of distributed RTU system according to claim 1, is characterized in that, described DTU comprises GPRS DTU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882723.XU CN203689117U (en) | 2013-12-27 | 2013-12-27 | Distributed RTU system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882723.XU CN203689117U (en) | 2013-12-27 | 2013-12-27 | Distributed RTU system |
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| CN203689117U true CN203689117U (en) | 2014-07-02 |
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| CN201320882723.XU Expired - Fee Related CN203689117U (en) | 2013-12-27 | 2013-12-27 | Distributed RTU system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699102A (en) * | 2013-12-27 | 2014-04-02 | 山东三龙智能技术有限公司 | Distributed RTU (Remote Terminal Unit) system |
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- 2013-12-27 CN CN201320882723.XU patent/CN203689117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699102A (en) * | 2013-12-27 | 2014-04-02 | 山东三龙智能技术有限公司 | Distributed RTU (Remote Terminal Unit) system |
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