CN101038488A - Bridge remote monitoring system - Google Patents
Bridge remote monitoring system Download PDFInfo
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- CN101038488A CN101038488A CNA2007101069288A CN200710106928A CN101038488A CN 101038488 A CN101038488 A CN 101038488A CN A2007101069288 A CNA2007101069288 A CN A2007101069288A CN 200710106928 A CN200710106928 A CN 200710106928A CN 101038488 A CN101038488 A CN 101038488A
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Abstract
The invention discloses a bridge remote monitoring system, consists of sensors installed on the bridge, data collecting instrument connected with the sensors, the intelligent control unit connected with the data collecting instrument, monitoring center server for data receiving and transmitting unit and data processing unit, and terminal for entering into the monitoring center server; the data collecting instrument may collect the data from the sensors connected with it; the intelligent control unit may receive the data from the collecting instrument, and send to the data receiving and transmitting unit; which may send the data to the data processing unit, the data processing unit may process the relevant data, and save the results into the monitoring center server, then send to the terminal display. The invention provides a bridge remote monitoring system for establishing the large-size monitoring network for those widely-distributed bridges to realize the bridge monitoring through IE.
Description
Technical field
The present invention relates to automatic field, particularly a kind of bridge remote monitoring system.
Background technology
Prior art bridge monitoring method mainly comprises following three kinds of modes:
One, traditional monitoring mode.
The most traditional monitoring mode is to adopt measurement, record and the processing of manually carrying out data in the prior art.This monitoring mode measuring speed is slow, and an image data finishing bridge structure is consuming time longer, is difficult to guarantee the consistance of each measuring point data duty.For example the data of 8:00 and 10:00 survey are added the difference of point position because Temperature Influence causes the bridge structure duty inconsistent, just eliminate Temperature Influence than difficulty when handling, and the processing of data just becomes more complicated.And data artificial error even mistake of unavoidable introducing in measurement, record, processing procedure.Because the bridge region disperses, the remote districts, many places mostly are work high above the ground, and manual measurement datamation difficulty is big during bridge construction and the operation.
Two, the bridge remote monitoring mode of utilizing GSM (Pan-European digital cellular land mobil) net to connect.
Adopt the course of work of the bridge remote monitoring technology implementation mode of GSM connection to be: sensor is received Acquisition Instrument by cable, Acquisition Instrument adopts on-the-spot RS485 bus to be connected on the level conversion unit, level conversion unit adopts the RS232 interface to be connected to the GSM data transmission unit, and the GSM data transmission unit enters the GSM network by communication base station and sets up point-to-point the connection with monitoring center GSM data transmission unit.The GSM data transmission unit is connected to monitoring center's computing machine by the RS232 interface and connects, and realizes the remote monitoring of bridge.
The bridge remote monitoring mode that adopts GSM to connect is to utilize the Circuit-switched voice service of GSM network to set up point-to-point data to connect, and controls each Acquisition Instrument image data on the bridge respectively by data center computer.The data center of this kind method is to adopt point-to-point mode with linking of collecting device everywhere, and the same set of equipment of data center can only be gathered a bridge block or the sensing data that Acquisition Instrument is connected at one time.And also be point-to-point control mode to the device control on the bus, so the speed of data acquisition is slow, complex operation.Data transmission method is based on mobile communication 2.0G technology, and data center computer must be equipped with special-purpose data transmission module and mobile phone card, uses extremely inconvenient.Data rate is slow, expense is high, set up relatively difficulty of large-scale monitoring network.
Three, the bridge remote monitoring mode of utilizing optical cable to connect.
Utilize the course of work of the bridge remote monitoring technology implementation mode that optical cable connects to be: sensor is received Acquisition Instrument by cable, Acquisition Instrument adopts on-the-spot RS485 bus to be connected on the control terminal machine, the control terminal machine is connected to photoelectric commutator and inserts long-range fiber cable network, connect by monitoring center's photoelectric commutator and monitoring center's computing machine again, realize the remote monitoring of bridge.
The bridge remote monitoring mode of utilizing optical cable to connect is to utilize special optical cable or rent the public optical cable of telecommunications and set up data and connect, and monitoring center's computer control collecting device is finished data acquisition or realized data automatic collecting by the control terminal machine is set.The shortcoming of this kind method is that cost height, maintenance difficulties are big, monitoring center is more fixing, sets up relatively difficulty of large-scale monitoring network.
Therefore, how setting up large-scale monitoring network under bridge distributes scattered situation, realize the remote monitoring of bridge, is the problem that need solve at present.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of bridge remote monitoring system, is used for setting up large-scale monitoring network under bridge distributes scattered situation, can realize the remote monitoring of bridge by IE.
Specifically, the invention provides a kind of bridge remote monitoring system, this system comprises the sensor that is installed on the bridge, the Acquisition Instrument that links to each other with sensor, the intelligent control unit that links to each other with Acquisition Instrument, comprises monitoring center's server of data transmit-receive unit and data processing unit and the terminal that logs on monitoring center's server;
Described Acquisition Instrument is gathered the data of coupled sensor;
Described intelligent control unit is controlled described Acquisition Instrument image data, sends to described data transmit-receive unit;
Described data transmit-receive unit sends to described data processing unit with the data that receive;
Described data processing unit carries out concrete operations to the data that described data transmit-receive unit receives, and result is stored in the described monitoring center server, shows by described terminal again.
Preferably, the processing of described data comprises that docking the data of receiving resolves, stores, analyzes, shows.
Preferably, described data transmit-receive unit comprises main thread unit and thread pool unit;
Described thread pool unit comprises the secondary thread subelement of carrying out concrete operations;
Described main thread unit controls is called the secondary thread subelement of corresponding concrete operations correspondence; Described secondary thread subelement is carried out corresponding concrete operations, execution result is stored in the described monitoring center server, and the feedback information that is finished is sent to described main thread unit.
Preferably, described intelligent control unit inserts GPRS or cdma network by DTU data transmission unit and communication base station, is connected to the Internet, connects described monitoring center server by router again.
Preferably, described sensor is most, is installed on one or most the collecting devices; The corresponding data of gathering a sensor of each passage of described Acquisition Instrument.
Preferably, described intelligent control unit is one or more, controls described Acquisition Instrument according to the control information of described monitoring center server.
Preferably, described terminal is workstation, palm PC or mobile phone.
Preferably, data acquisition is carried out in the control information that sends of the described monitoring center server that receives according to described intelligent control unit of described Acquisition Instrument.
Preferably, described system further comprises database server; Data backup after described monitoring center server will be handled is stored in the described database server.
Preferably, when described monitoring center server receives abnormal data, send alerting signal to terminal.
The described bridge remote monitoring system of example of the present invention comprises the sensor that is installed on the bridge, the Acquisition Instrument that links to each other with described sensor, the intelligent control unit that links to each other with described Acquisition Instrument and the monitoring center's server that comprises data transmit-receive unit, data processing unit and the terminal that logs on monitoring center's server.Described data processing unit is carried out concrete data processing operation according to the data that the data transmit-receive unit receives, and result sent in the described monitoring center server by the data transmit-receive unit, show by the terminal of landing this monitoring center's server again.Monitoring center's server communicates by the network equipment and described intelligent control unit, and when terminal need be monitored described Modular Bridge System, described terminal only need log on the described monitoring center server by IE and get final product.
Further, the step control pattern is adopted in the control of Acquisition Instrument, and promptly terminal is submitted control command to monitoring center's server, monitoring center's server controls intelligent control unit, and intelligent control unit is controlled each Acquisition Instrument.The work that Acquisition Instrument on the same bus can walk abreast under the control of intelligent control unit simultaneously can realize the rapidity of data acquisition.
Description of drawings
Fig. 1 is first kind of embodiment structural drawing of system of the present invention;
Fig. 2 is second kind of embodiment structural drawing of system of the present invention;
Fig. 3 is the third embodiment structural relation figure of system of the present invention;
Fig. 4 is the flow chart of data processing figure of monitoring center of the present invention computing machine.
Among the figure: 1, monitoring center's server, 101, the data transmit-receive unit, 102, data processing unit, 1011, main thread unit, 1012, the thread pool unit, 2, the network equipment, 3, router, 4, terminal, 5, Internet, 6, communication base station, 7, DTU (data transmission unit), 8, intelligent control unit, 9, Acquisition Instrument, 10, sensor, 11, database server, 12, GPRS/CDMA network, 13, fire wall.
Embodiment
The invention provides a kind of bridge remote monitoring system, be used under bridge distributes scattered situation, setting up large-scale monitoring network, realize the remote monitoring of bridge.
In order to make those skilled in the art understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, this figure is first kind of embodiment structural drawing of system of the present invention.
First kind of embodiment of bridge remote monitoring system of the present invention comprises the sensor 10 that is installed on the remote equipment, the Acquisition Instrument 9 that links to each other with described sensor 10, the intelligent control unit 8 that links to each other with described Acquisition Instrument 9, comprises monitoring center's server 1 of data transmit-receive unit 101 and data processing unit 102 and the terminal 4 that logs on monitoring center's server 1.
Described Acquisition Instrument 9 is used to gather the data of coupled sensor 10;
Described intelligent control unit 8 receives the data that described Acquisition Instrument 9 is gathered, and sends to the data transmit-receive unit 101 of described monitoring center server 1;
Described data transmit-receive unit 101 sends to data processing unit 102 with the data that receive, and the result of data processing unit 102 is sent in monitoring center's server 1, shows by terminal 4 again.
Monitoring center's server 1 opening Web service, each terminal 4 can use IE by INTERNET directly to monitoring center's server 1 conduct interviews, operate, operation such as control.
By the described system of the embodiment of the invention, can realize the concentrated monitoring of bridge, simple to operate.Under bridge distributes discrete actual conditions, can realize highly integrated monitoring system.
The processing of described data comprises that docking the data of receiving resolves, stores, analyzes, shows.
Because the described bridge remote monitoring system of the embodiment of the invention, comprise the sensor 10 that is installed on the remote equipment, the Acquisition Instrument 9 that links to each other with described sensor 10, the intelligent control unit 8 that links to each other with described Acquisition Instrument 9, and comprise in monitoring center's server 1 of data transmit-receive unit 101, data processing unit 102.Described data processing unit 102 is carried out concrete data processing operation according to the data that data transmit-receive unit 101 receives, and result sent in the described monitoring center server 1 by data transmit-receive unit 101, show by the terminal 4 of landing this monitoring center's server 1 again.Monitoring center's server 1 communicates by the network equipment 2 and described intelligent control unit 8, and when terminal 4 need be monitored described Modular Bridge System, 4 need of described terminal logged in the described monitoring center server 1 by IE and get final product.
Referring to Fig. 2, this figure is second kind of embodiment structural drawing of system of the present invention.
Second kind of embodiment of system of the present invention is with respect to first kind of embodiment, and described data transmit-receive unit 101 further can comprise main thread unit 1011 and thread pool unit 1012.
Described thread pool unit 1012 comprises the secondary thread subelement of carrying out concrete operations.
The secondary thread subelement of corresponding concrete operations correspondence is called in 1011 controls of described main thread unit, described secondary thread subelement calls the subelement of concrete operations corresponding in the data processing unit 102, execution result is stored in the described monitoring center server 1, and the feedback information that is finished is sent to described main thread unit 1011.
Described secondary thread subelement can comprise reception secondary thread, transmission secondary thread, parsing secondary thread, storage secondary thread, analyze the secondary thread of corresponding concrete operations such as secondary thread, demonstration secondary thread.
Described reception secondary thread is called in described main thread unit 1011 down, receives the data that send to described monitoring center server 1.
Described transmission secondary thread is called in described main thread unit 1011 down, and transmitting control commands is to described intelligent control unit 8.
Described parsing secondary thread is corresponding to the data parsing subelement of described data processing unit 102, when described parsing secondary thread is called in described main thread unit 1011 control, described parsing secondary thread is called the data parsing subelement, carries out concrete data parsing operation by the data parsing subelement.
Described storage secondary thread is corresponding to the data storage subelement of described data processing unit 102, when described storage secondary thread is called in described main thread unit 1011 control, described storage secondary thread is called the data storage subelement, carries out concrete data storage operations by the data storage subelement.
Described analysis secondary thread is corresponding to the data analysis subelement of described data processing unit 102, when described analysis secondary thread is called in described main thread unit 1011 control, described analysis secondary thread is called the data analysis subelement, carries out concrete data analysis operation by the data analysis subelement.
Described demonstration secondary thread is corresponding to the data presentation subelement of described data processing unit 102, when described demonstration secondary thread is called in described main thread unit 1011 control, described demonstration secondary thread is called the data presentation subelement, carries out concrete data display operation by the data presentation subelement.
Described thread pool unit 1012 can also comprise the sub-thread of the authentication that is used for the legal checking of identity.
Described main thread unit 1011 before each concrete secondary thread, can at first call the sub-thread of authentication in calling described thread pool unit 1012.Before carrying out communication, at first to connect, need carry out authentication when connecting.Have only and after identity verification is legal, just permit connecting, otherwise can not connect; Thereby guarantee the security of communication.
Described monitoring center server 1 can also comprise service management unit, is used to verify user's legal identity, and can increase new validated user according to actual needs.
To receive the data instance that described intelligent control unit 8 sends, specify the course of work of monitoring center's server 1 below.
Monitoring center's server 1 is monitored the network port, and when receiving the connection request of one or more data transmission units 7, described monitoring center server 1 is set up one or more Socket (socket) and connected.By setting up one or more connections simultaneously, so that realize simultaneously monitoring to one or more bridges.
The accepting state of monitoring center's server 1 monitored data Transmit-Receive Unit 101, when monitoring center's server 1 has listened to data arrival, notice main thread unit 1011.
Main thread unit 1011 starts thread pool unit 1012, calls the reception secondary thread, carries out concrete receiving course.
After then the data that receive being carried out data check, can store the memory block into, execution result fed back to main thread unit 1011.
Described data transmit-receive unit 101 comprises thread pool unit 1012, makes the same set of equipment of monitoring center's server 1, can monitor in real time many bridge blocks simultaneously, has improved the utilization factor of resource, has reduced the cost of setting up data center.Detecting a plurality of bridges simultaneously mainly realizes by setting up a plurality of connections.By the thread pool unit total system is better worked.It is adequate condition that system embodiment of the present invention is set up a plurality of connections, comprises that multithreading is that the thread pool unit is a necessary condition.
Preferred implementation, system of the present invention can also comprise database server 11, database server 11 is used to store Monitoring Data such as user management data, processing back data.4 users use Monitoring Data that convenience is provided for remote terminal.
Thread pool is not simple multithreading.In a program, be not that multiple response is fast more more for thread.Basically code structure is reasonable, and number of threads and CPU number equate just can.If the CPU that supports hyperthread is arranged, then should corresponding increase thread.
Multithreading mainly solves the problem of a plurality of thread execution in the processor unit, and it can significantly reduce the standby time of processor unit, increases the handling capacity of processor unit.If but, can increase processing time to individual task to the multithreading misapplication.
For general application, consider to respond user interface timely that can wait work to be placed on the inside, main thread unit, it is minimum that this thread takies the CPU expense, can ignore to mutual and scheduling.The mission thread number that other opens then preferably meets top principle.
Optimal way, scheduler program is created new thread again when all working thread is all busy, no longer create new thread after reaching restricted number, then task is added pending formation.
Mission thread is designed to a circulation, unless main thread unit notice, otherwise never end.Task queue is at first checked in circulation each time, if find to have waiting task, then handle, and this task of mark is " handling ".From formation, delete this task after finishing dealing with.
The thread pool unit comprises:
Thread pool manager (Thread Pool Manager): be used for creating and the management thread pond.
The secondary thread subelement is worker thread unit (Work Thread): the secondary thread in the thread pool unit.
Task interface (Task): the interface that each task must realize, for the execution of worker thread scheduler task.
Task queue: be used to deposit the task of not having processing.
First kind of described intelligent control unit of embodiment of the present invention can insert GPRS or cdma network by DTU data transmission unit and communication base station, is connected to the Internet, connects described monitoring center server by router again.
Terminal 4 can be various forms of workstations, also can be terminal forms such as palm PC, mobile phone.
This terminal 4 can use IE by INTERNET directly to monitoring center's server 1 and/or database server 11 conduct interviews, operate, operation such as control, thereby realize the remote monitoring of bridge.
Set up monitoring network like this,, reduce cost except the equipment such as Acquisition Instrument of necessity just need not increase miscellaneous equipment.The installation of equipment such as Acquisition Instrument is simple and convenient, and the monitoring network networking is convenient; And terminal 4 can log on monitoring center's server 1 or database server 11 whenever and wherever possible, has very big dirigibility.
Certainly, described sensor 10 can be most, is installed on one or most the Acquisition Instruments.
The corresponding data of gathering a sensor 10 of each passage of described Acquisition Instrument 9.
Described intelligent control unit 8 can be controlled described Acquisition Instrument 9 according to the control information of described monitoring center server 1 for one or more.
Described intelligent control unit 8 can be controlled Acquisition Instrument 9 automatically and gather described sensor 10 data, and also data acquisition is carried out in the control information that can send according to the described monitoring center server 1 that described intelligent control unit 8 receives.Described monitoring center server 1 is by terminal 4 control that conducts interviews.
Like this, the control of described Acquisition Instrument 9 is exactly to have adopted the step control pattern.Be terminal 4 control monitoring center servers 1, monitoring center's server 1 control intelligent control unit 8, intelligent control unit 8 each Acquisition Instrument 9 of control.The work that Acquisition Instrument 9 on the same bus can walk abreast under the control of intelligent control unit 8 has simultaneously realized quick image data.
Simultaneously, described intelligent control unit can insert GPRS or cdma network by DTU data transmission unit 7 and communication base station 6, is connected to the Internet, connects described monitoring center server 1 by wireless network again.
Described monitoring center server 1 can send alerting signal when receiving abnormal data.
Referring to Fig. 3, this figure is the third embodiment structural relation figure of system of the present invention.
Specify the course of work of the third embodiment of system of the present invention below in conjunction with Fig. 3.
The control command of terminal 4 sends to monitoring center's server 1 by Internet 5, sends to intelligent control unit 8 by Internet5, DTU 7 again, and intelligent control unit 8 resolve command are controlled each Acquisition Instrument 9 and worked simultaneously.After Acquisition Instrument 9 was finished the data acquisition operation, the passback data were given intelligent control unit 8, and intelligent control unit 8 sends it back monitoring center's server 1 with the desired data packing.Monitoring center's server 1 after receiving data, to data resolve, store, analyze, operation such as demonstration.And a final result who handles sends to described terminal 4.
When data occur when unusual, monitoring center's server 1 produces warning message and sends to the terminal 4 that it links to each other.
The controlled variable of intelligent control unit 8 can be provided with by monitoring center's server 1.Thereby the timing automatic that realizes intelligent control unit 8 is measured.Measure when Acquisition Instrument 9 and data to be passed back to monitoring center's server 1 after finishing, and measurement data is stored in the storer of intelligent control unit 8, so just can avoid causing loss of data because of network is obstructed.
The problem that intelligent control unit 8 can occur according to collection in worksite equipment in when work, such as electric voltage exception, sensor abnormality, bus is unusual etc., sends all kinds of reporting an error or warning message.When connecting, can also send SMS alarm information according to the terminals such as supvr's mobile phone of storing in intelligent control unit 8 storeies less than monitoring center's server 1.
Referring to Fig. 4, this figure is a monitoring center of the present invention data in server processing flow chart.
S10, startup thread pool.
S20, define and need to carry out secondary thread.Execution in step S30 then.
S30, judge whether the thread pool formation is full, if execution in step S40; Otherwise execution in step S50.
The greatest limit of thread pool formation is predefined, can set different quantity according to actual needs.
Between S40, dynamic assignment thread pool queue empty, execution in step S50 then.
Be meant between the queue empty that allocates in advance to each secondary thread some between dynamic assignment thread pool queue empty, certainly between this queue empty much smaller than the greatest limit of above-mentioned thread pool formation.In the time of between the thread pool number of queues is greater than the queue empty of above-mentioned setting, dynamic assignment is given between the queue empty of this secondary thread predetermined quantity.This predetermined quantity can equal the formation amount of space of the above-mentioned distribution first time, also can be greater than or less than the formation amount of space of distributing the above-mentioned first time.Concrete predetermined quantity can be set according to actual needs.
Certainly the maximum setting of thread pool formation all is to satisfy demand between dynamic assignment thread pool queue empty.
Even when equaling the greatest limit of thread pool formation between the queue empty after between dynamic assignment thread pool queue empty, also be after can waiting for the thread execution of first in first out in the thread pool, queuing enters thread pool again.
The thread pool formation is put in the address of S50, the one or more secondary thread that will carry out.
Just write down the address of the secondary thread that needs execution in the thread pool formation.
S60, thread pool are finished calling of data processing unit by this secondary thread address.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of bridge remote monitoring system, it is characterized in that this system comprises the sensor that is installed on the bridge, the Acquisition Instrument that links to each other with sensor, the intelligent control unit that links to each other with Acquisition Instrument, comprises monitoring center's server of data transmit-receive unit and data processing unit and the terminal that logs on monitoring center's server;
Described Acquisition Instrument is gathered the data of coupled sensor;
Described intelligent control unit is controlled described Acquisition Instrument image data, sends to described data transmit-receive unit;
Described data transmit-receive unit sends to described data processing unit with the data that receive;
Described data processing unit carries out concrete operations to the data that described data transmit-receive unit receives, and result is stored in the described monitoring center server, shows by described terminal again.
2, bridge remote monitoring system according to claim 1 is characterized in that, the processing of described data comprises that docking the data of receiving resolves, stores, analyzes, shows.
3, bridge remote monitoring system according to claim 1 and 2 is characterized in that, described data transmit-receive unit comprises main thread unit and thread pool unit;
Described thread pool unit comprises the secondary thread subelement of carrying out concrete operations;
Described main thread unit controls is called the secondary thread subelement of corresponding concrete operations correspondence; Described secondary thread subelement is carried out corresponding concrete operations, execution result is stored in the described monitoring center server, and the feedback information that is finished is sent to described main thread unit.
4, bridge remote monitoring system according to claim 1, it is characterized in that, described intelligent control unit inserts GPRS or cdma network by DTU data transmission unit and communication base station, is connected to the Internet, connects described monitoring center server by router again.
5, bridge remote monitoring system according to claim 1 is characterized in that, described sensor is most, is connected on one or most the Acquisition Instruments; Described Acquisition Instrument has most passages, the data of the sensor that each described passage collection is attached thereto.
6, bridge remote monitoring system according to claim 4 is characterized in that, described intelligent control unit is one or more, controls described Acquisition Instrument according to the control information of described monitoring center server.
7, bridge remote monitoring system according to claim 1 is characterized in that, described terminal is workstation, palm PC or mobile phone.
8, bridge remote monitoring system according to claim 1 and 2 is characterized in that, data acquisition is carried out in the control information that the described monitoring center server that described Acquisition Instrument receives according to described intelligent control unit sends.
9, bridge remote monitoring system according to claim 8 is characterized in that, described system further comprises database server; Data backup after described monitoring center server will be handled is stored in the described database server.
10, bridge remote monitoring system according to claim 9 is characterized in that, when described monitoring center server receives abnormal data, sends alerting signal to described terminal.
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| CNA2007101069288A CN101038488A (en) | 2007-05-09 | 2007-05-09 | Bridge remote monitoring system |
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| CNA2007101069288A CN101038488A (en) | 2007-05-09 | 2007-05-09 | Bridge remote monitoring system |
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| CN101827007A (en) * | 2010-04-19 | 2010-09-08 | 中兴通讯股份有限公司 | Method and device for interconnecting sensor network and mobile terminal and network connection equipment |
| WO2010109485A2 (en) * | 2009-03-24 | 2010-09-30 | Spirax Marshall Pvt. Ltd. | A steam-trap monitoring system |
| CN102096763A (en) * | 2010-12-24 | 2011-06-15 | 江西省交通科学研究院 | Bridge health monitoring system based on technology of Internet of things |
| CN102411361A (en) * | 2011-12-12 | 2012-04-11 | 中国水电顾问集团华东勘测设计研究院 | Acquisition and control system of engineering security automation equipment |
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| CN104375488A (en) * | 2014-11-19 | 2015-02-25 | 西安奥特迅电力电子技术有限公司 | High-voltage SVG remote monitoring system |
| CN104699049A (en) * | 2015-02-11 | 2015-06-10 | 深圳市志奋领科技有限公司 | Field monitoring method for bridges and tunnels through 4G communication |
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| CN105976588A (en) * | 2016-05-20 | 2016-09-28 | 清华大学合肥公共安全研究院 | Comprehensive bridge distribution type monitoring processing system |
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| WO2010109485A2 (en) * | 2009-03-24 | 2010-09-30 | Spirax Marshall Pvt. Ltd. | A steam-trap monitoring system |
| WO2010109485A3 (en) * | 2009-03-24 | 2011-01-20 | Spirax Marshall Pvt. Ltd. | A steam-trap monitoring system |
| CN101846985B (en) * | 2009-03-25 | 2013-10-09 | 鸿富锦精密工业（深圳）有限公司 | Remote data acquisition system and method |
| CN101799673B (en) * | 2009-09-23 | 2016-05-18 | 乔峰 | A kind of apparatus and method of data of refrigeration container remote monitoring |
| CN101827007A (en) * | 2010-04-19 | 2010-09-08 | 中兴通讯股份有限公司 | Method and device for interconnecting sensor network and mobile terminal and network connection equipment |
| CN102096763A (en) * | 2010-12-24 | 2011-06-15 | 江西省交通科学研究院 | Bridge health monitoring system based on technology of Internet of things |
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