CN202403924U - Bridge health monitoring system based on recommended standard (RS) 485 bus - Google Patents
Bridge health monitoring system based on recommended standard (RS) 485 bus Download PDFInfo
- Publication number
- CN202403924U CN202403924U CN 201120536886 CN201120536886U CN202403924U CN 202403924 U CN202403924 U CN 202403924U CN 201120536886 CN201120536886 CN 201120536886 CN 201120536886 U CN201120536886 U CN 201120536886U CN 202403924 U CN202403924 U CN 202403924U
- Authority
- CN
- China
- Prior art keywords
- module
- bridge health
- health monitoring
- bus
- mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The utility model discloses a bridge health monitoring system based on a recommended standard (RS) 485 bus. The bridge health monitoring system comprises a monitoring center computer, an RS485 gateway and a plurality of bridge health monitoring nodes. The RS485 gateway is connected with the monitoring center computer, the plurality of bridge health monitoring nodes are connected with the RS485 gateway through the RS485 bus, the bridge health monitoring nodes comprise a microprogrammed control unit (MCU) module, a power supply power source, an infrared communication module, an Ethernet communication module, a user interface circuit module and a remote communication module, the power supply power source module is used for supplying power for each power utilization unit in a system, the infrared communication, the Ethernet communication module, the user interface circuit module and the remote communication module are connected with the MCU module, an input end of the MCU module is connected with a signal acquisition module, an input end of the signal acquisition module is connected with a sensor group which is used for collecting the data of the bridge health condition, and an output end of the MCU module is connected with a liquid crystal display module which is used for displaying the data of the bridge health condition. The bridge health monitoring system based on the RS485 bus is simple in structure, reasonable in design, convenient to arrange wires, stable and reliable in data transmission, complete in functions, low in implement costs, capable of fully meeting the requirement of bridge environmental monitoring, high in practical applicability, and high in application and popularization values.
Description
Technical field
The utility model relates to the bridge structural health monitoring technical field, especially relates to a kind of bridge health monitoring system based on the RS485 bus.
Background technology
RS485 serial bus standard scheme usually require communication distance be tens meters on extensively adopted during km.RS-485 adopts balance to send and differential received, therefore has the ability that suppresses common mode interference.Transmission signals adds that bus transceiver has high sensitivity, can detect the voltage that is low to moderate 200mV, so can be restored beyond km.RS-485 adopts half-duplex operation, whenever can only have any to be in transmit status, and therefore, transtation mission circuit must be controlled by enable signal.Application of RS-485 formation the distributed system of can networking, it allows 32 drivers of parallel connection and 32 receivers at most.It is very convenient when the topmost advantage of RS485 bus is multi-point interconnection; Can save many signal wires; Can not receive the restriction of wiring condition; Therefore be fit to very much bridge, the needs that the multiple spot of monitoring systems such as road is deployed to ensure effective monitoring and control of illegal activities connect up and be overall framework for a big vital task of the health monitoring systems of comprehensive self environment of bridge.So RS485 serial bus standard scheme technology more and more receives people's attention in the application of foundation construction field, numerous enterprises both domestic and external and research institution have obtained rapid progress in RS485 serial bus standard scheme and expansion research and development field thereof.The RS485 serial bus standard scheme utility ratio of existing all kinds of construction fields is relatively low.
The utility model content
The utility model technical matters to be solved is to above-mentioned deficiency of the prior art a kind of bridge health monitoring system based on the RS485 bus to be provided, and it is simple in structure; Reasonable in design, wiring is implemented convenient, and data transmission is stable, reliable; Complete function realizes that cost is low, has satisfied the needs of bridge environmental monitoring effectively; Practical, application value is high.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of bridge health monitoring system based on the RS485 bus; It is characterized in that: comprise Surveillance center's computing machine, the RS485 gateway that joins with Surveillance center's computing machine and a plurality of bridge health monitoring nodes that join through RS485 bus and RS485 gateway; Said bridge health monitoring node comprises the MCU module, gives power supply and the infrared communication module of joining with the MCU module, ethernet communication module, user interface circuit module and the remote communication module of each power unit power supply in the system; The input end of said MCU module is connected to signal acquisition module; The input end of said signal acquisition module is connected to the sensor groups that is used to gather bridge health status data, and the output terminal of said MCU module is connected to the LCD MODULE that is used to show bridge health status data.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus; It is characterized in that: said power module comprises voltage transformation module, the charge-discharge protection circuit module of joining with voltage transformation module and the battery module that joins with the charge-discharge protection circuit module, saidly is connected to direct supply or solar panel with input end voltage transformation module.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus is characterized in that: said MCU module is 32 high speed ARM7 chip SEP4020.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus is characterized in that: said infrared communication module is joined through UART mouth and MCU module.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus is characterized in that: said user interface circuit module is usb circuit module or SD card interface circuit module.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus is characterized in that: said remote communication module is one or more in GPRS module, TD-SCDMA module, WCDMA module and the EVDO module.
Above-mentioned a kind of bridge health monitoring system based on the RS485 bus is characterized in that: said remote communication module is joined through UART mouth and MCU module.
The utility model compared with prior art has the following advantages:
1, the utility model adopts modular design, and is simple in structure, reasonable in design, and wiring is implemented convenient.
2, the utility model adopts RS485 bus and RS485 gateway to realize the networking of a plurality of bridge health monitoring nodes, and data transmission is stable, reliable.
3, the complete function of the utility model; Solved because the labor measurement operation is remote dangerous; And data unavoidable artificial error even mistake, problems such as manual measurement datamation difficulty is big during bridge construction and the operation introduced in measurement, record, processing procedure; Solve the high testing cost that the wired test macro of lightguide cable link causes simultaneously, promoted modern bridge detection technique and health monitoring technical merit.
4, the utility model is a kind of perfect for the deficiency of tackling existing monitoring technology, has satisfied the needs of bridge environmental monitoring effectively.
5, the utility model is practical, and application value is high.
In sum, the utility model is simple in structure, and is reasonable in design, and wiring is implemented convenient, and data transmission is stable, reliable, and complete function realizes that cost is low, has satisfied the needs of bridge environmental monitoring effectively, and practical, application value is high.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Fig. 2 is the schematic block circuit diagram of the utility model bridge health monitoring node.
Description of reference numerals:
1-Surveillance center computing machine; The 2-RS485 gateway; 3-bridge health monitoring node;
The 3-1-MCU module; The 3-2-infrared communication module; 3-3-ethernet communication module;
3-4-user interface circuit module; The 3-5-remote communication module; The 3-6-signal acquisition module;
The 3-7-sensor groups; The 3-8-LCD MODULE; The 3-9-voltage transformation module;
3-10-charge-discharge protection circuit module; The 3-11-battery module;
The 4-direct supply; The 5-solar panel.
Embodiment
As depicted in figs. 1 and 2; The utility model comprises Surveillance center's computing machine 1, the RS485 gateway 2 that joins with Surveillance center's computing machine 1 and a plurality of bridge health monitoring nodes 3 that join through RS485 bus and RS485 gateway 2; Said bridge health monitoring node 3 comprises MCU module 3-1, gives power module and the infrared communication module 3-2 that joins with MCU module 3-1, ethernet communication module 3-3, user interface circuit module 3-4 and the remote communication module 3-5 of each power unit power supply in the system; The input end of said MCU module 3-1 is connected to signal acquisition module 3-6; The input end of said signal acquisition module 3-6 is connected to the sensor groups 3-7 that is used to gather bridge health status data, and the output terminal of said MCU module 3-1 is connected to the LCD MODULE 3-8 that is used to show bridge health status data.
As shown in Figure 2; In the present embodiment; Said power module comprises voltage transformation module 3-9, the charge-discharge protection circuit module 3-10 that joins with voltage transformation module 3-9 and the battery module 3-11 that joins with charge-discharge protection circuit module 3-10, saidly is connected to direct supply 4 or solar panel 5 with input end voltage transformation module 3-9.
As shown in Figure 2, in the present embodiment, said MCU module 3-1 is 32 high speed ARM7 chip SEP4020, and this MCU itself has 4 road UART mouths; 1 road 10M/100M Ethernet interface; Lcd controller is supported black and white, color screen, and touch-screen; 97 GPIO; The TIMER of 10 passages can catch pulse; Support NAND FLASH controller; Support USB and MMC/SD card.General operating rate can reach about 86M.Peripheral by 4M NOR FLASH, the SDRAM of 2M, 64M NAND FLASH constitutes.Said infrared communication module 3-2 joins through UART mouth and MCU module 3-1; The short range communication of infrared communication module 3-2 support terminal; This module and infrared palmtop computer are used, and can let user flexibility setting and make a copy of terminal data, also can be through being provided with; Make its inefficacy, perhaps have only read functions.Said user interface circuit module 3-4 is usb circuit module or SD card interface circuit module; User interface circuit module 3-4 is because unusual inconvenient teleprocessing; Perhaps want to carry out large-scale data when backup, the interface that communicates and upgrade with local user.Said remote communication module 3-5 is one or more, local according to the user situation in GPRS module, TD-SCDMA module, WCDMA module and the EVDO module, can select different modes.Said remote communication module 3-5 joins through UART mouth and MCU module 3-1, and remote communication module 3-5 is a module of guaranteeing user's telecommunication, is to set up the bridge that the user communicates by letter with service centre.
During practical implementation, battery module is selected suitable power pack for use, externally under the situation of dead electricity, is responsible for the operation of whole terminal, will note the persistence of battery in the time of type selecting, and charge stability.LCD MODULE 3-8 can be made up of liquid crystal and the six press keys of a 160*160; Wheel shows the real time data of bridge health monitoring node above; Also can inquire about the present self working state of bridge health monitoring node; Under the cooperation of cryptographic check mechanism, can let the user that some parameters are set in the locality; Can also select the touch LCD screen for use.Because MCU module 3-1 itself carries 1 road 10M/100M Ethernet interface, therefore only need add similar DM9161E chip and get final product the network enabled function, realize ethernet communication module 3-3.
The RS485 bus is because its wiring is simple; Thereby the reliable and stable video monitoring that is widely used in; Gate inhibition's intercommunication, in the every field such as building warning, the lime light during the RS485 route bus is following: 1,485 signal wires can with forceful electric power the other forms of device that can convert electric energy to cabling together.In the middle of practice of construction, because cabling is all walked through pipeline, construction party is sometimes in order to scheme conveniently; Directly 485 signal wires and power lead are held together; Because forceful electric power has strong electromagnetic signal light current is disturbed, thereby causes 485 jitters, cause communication unstable; 2,485 signal wires can use parallel lines as wiring, also can use non-shielding line as wiring, because 485 signals utilize the differential mode transmission, promptly the voltage difference by 485+ and 485-is used as the signal transmission.If the outside has an interference source that it is disturbed, when using twisted-pair feeder to carry out the transmission of 485 signals, because its multiple twin; Interference is for 485+; The interference effect of 485-all is the same, and that voltage difference still is constant, has been reduced to minimum for the interference of 485 signals.Same reason, if there is shielding line to play shielding action, external interference source also can dwindle for its disturbing effect as much as possible; 3,485 the wiring arbitrarily cloth be set as star-like wiring and tree-like wiring; 485 wiring standards are hand-in-handly to connect up, and are not connected star-like the connection with tree-like in case be set as by 485 hubs and the direct cloth of 485 repeaters, are easy to cause signal reflex to cause bus unstable; A lot of construction parties are in 485 wiring process; Used star-like wiring and tree-like wiring, total system is highly stable sometimes, but then always goes wrong sometimes; Being difficult to search reason again, generally all is because wiring lack of standardization is caused; 4,485 buses must ground connection.In a lot of technical documentations, all mentioning 485 buses must ground connection, but does not have how ground connection of detailed proposition; Strictly speaking, 485 buses must the single-point reliable ground, and single-point is exactly can only be that a some ground connection is arranged on whole 485 buses; Can not multipoint earthing; Because with its ground connection is because will the voltage on the ground wire (generally all being that shielding line is made ground wire) be consistent, prevent common mode interference, if multipoint earthing runs counter to desire.The ground wire of whole 485 circuits must have excellent contact during reliable ground, thereby guarantees that voltage is consistent, because in practice of construction; For easy-to-connect; Line is cut into multistage connects again, but shielding line is not done good connection, thereby make its ground wire be divided into multistage; Voltage can not be consistent, and causes common mode interference.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (7)
1. bridge health monitoring system based on the RS485 bus; It is characterized in that: comprise Surveillance center's computing machine (1), the RS485 gateway (2) that joins with Surveillance center's computing machine (1) and a plurality of bridge health monitoring nodes (3) that join through RS485 bus and RS485 gateway (2); Said bridge health monitoring node (3) comprises MCU module (3-1), gives power module and the infrared communication module (3-2) of joining with MCU module (3-1), ethernet communication module (3-3), user interface circuit module (3-4) and the remote communication module (3-5) of each power unit power supply in the system; The input end of said MCU module (3-1) is connected to signal acquisition module (3-6); The input end of said signal acquisition module (3-6) is connected to the sensor groups (3-7) that is used to gather bridge health status data, and the output terminal of said MCU module (3-1) is connected to the LCD MODULE (3-8) that is used to show bridge health status data.
2. according to the described a kind of bridge health monitoring system of claim 1 based on the RS485 bus; It is characterized in that: said power module comprises voltage transformation module (3-9), the charge-discharge protection circuit module (3-10) of joining with voltage transformation module (3-9) and the battery module (3-11) that joins with charge-discharge protection circuit module (3-10), saidly is connected to direct supply (4) or solar panel (5) with input end voltage transformation module (3-9).
3. according to claim 1 or 2 described a kind of bridge health monitoring systems based on the RS485 bus, it is characterized in that: said MCU module (3-1) is 32 high speed ARM7 chip SEP4020.
4. according to the described a kind of bridge health monitoring system based on the RS485 bus of claim 3, it is characterized in that: said infrared communication module (3-2) is joined through UART mouth and MCU module (3-1).
5. according to the described a kind of bridge health monitoring system based on the RS485 bus of claim 3, it is characterized in that: said user interface circuit module (3-4) is usb circuit module or SD card interface circuit module.
6. according to the described a kind of bridge health monitoring system of claim 3, it is characterized in that: said remote communication module (3-5) one or more in GPRS module, TD-SCDMA module, WCDMA module and the EVDO module based on the RS485 bus.
7. according to the described a kind of bridge health monitoring system based on the RS485 bus of claim 6, it is characterized in that: said remote communication module (3-5) is joined through UART mouth and MCU module (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120536886 CN202403924U (en) | 2011-12-15 | 2011-12-15 | Bridge health monitoring system based on recommended standard (RS) 485 bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120536886 CN202403924U (en) | 2011-12-15 | 2011-12-15 | Bridge health monitoring system based on recommended standard (RS) 485 bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403924U true CN202403924U (en) | 2012-08-29 |
Family
ID=46701565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120536886 Expired - Fee Related CN202403924U (en) | 2011-12-15 | 2011-12-15 | Bridge health monitoring system based on recommended standard (RS) 485 bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403924U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792370A (en) * | 2015-05-22 | 2015-07-22 | 合肥昊诚工贸有限责任公司 | Bridge safety situation analyzer |
| CN104792371A (en) * | 2015-05-22 | 2015-07-22 | 合肥昊诚工贸有限责任公司 | Novel bridge safety detection device |
| CN104897189A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Novel bridge safety condition detection analyzer |
| CN104897195A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety condition detector |
| CN104897194A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety condition analyzer |
| CN104897192A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety index detector |
| CN105022711A (en) * | 2014-04-23 | 2015-11-04 | 林新辉 | serial bus communication architecture |
-
2011
- 2011-12-15 CN CN 201120536886 patent/CN202403924U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022711A (en) * | 2014-04-23 | 2015-11-04 | 林新辉 | serial bus communication architecture |
| CN104897189A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Novel bridge safety condition detection analyzer |
| CN104897195A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety condition detector |
| CN104897194A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety condition analyzer |
| CN104897192A (en) * | 2014-09-26 | 2015-09-09 | 安徽金培因科技有限公司 | Bridge safety index detector |
| CN104792370A (en) * | 2015-05-22 | 2015-07-22 | 合肥昊诚工贸有限责任公司 | Bridge safety situation analyzer |
| CN104792371A (en) * | 2015-05-22 | 2015-07-22 | 合肥昊诚工贸有限责任公司 | Novel bridge safety detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202403924U (en) | Bridge health monitoring system based on recommended standard (RS) 485 bus | |
| CN106100956A (en) | Double radio communication photovoltaic plant long distance control systems of RS485 bus architecture | |
| CN204423627U (en) | Photo-voltaic power generation station cell panel power line carrier monitoring system | |
| CN204856878U (en) | Embedded M -BUS intelligence concentrator | |
| CN102128977A (en) | Single-phase watt-hour meter supporting two-way communication | |
| CN103401587B (en) | A kind of data acquisition unit based on power carrier communication technology and method | |
| CN203705071U (en) | Point-to-multipoint temperature monitoring apparatus of high-voltage switch cabinets | |
| CN204881720U (en) | Wireless teletransmission ultrasonic water table | |
| CN101937213B (en) | Wireless remote terminal cluster control system | |
| CN204089871U (en) | Mine explosion-suppression and intrinsic safety type switch | |
| CN103257289A (en) | Single CPU power quality detecting and two-way power metering combination system | |
| CN202120433U (en) | Meter reading system | |
| CN103162980A (en) | Bridge health monitoring system based on radio station (RS) 485 bus | |
| CN202353613U (en) | Ethernet-controller area network (CAN) bus data acquisition interface device | |
| CN204086245U (en) | A kind of the multi-system exports mining methane sensor | |
| CN201910128U (en) | Intelligent electricity consumption management terminal device | |
| CN204496197U (en) | Wireless remote transmission ultrasonic water meter control circuit | |
| CN203104517U (en) | Intelligent household monitoring system | |
| CN102419386A (en) | 0.5-grade electronic type single-phase watt-hour meter | |
| CN202584400U (en) | Intelligent carrier wireless comprehensive meter reading system | |
| CN205899797U (en) | Voltage parameter collection system based on power line carrier | |
| CN201467371U (en) | Twisted pair transmission-based video monitoring device | |
| CN205178487U (en) | Intelligence residual current circuit breaker controlling means | |
| CN203708240U (en) | RF-485 signal converter | |
| CN210244127U (en) | Intelligent controller of ray analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20121215 |