CN204856174U - Suspension bridge cable safety integrated monitoring system - Google Patents
Suspension bridge cable safety integrated monitoring system Download PDFInfo
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- CN204856174U CN204856174U CN201520231408.XU CN201520231408U CN204856174U CN 204856174 U CN204856174 U CN 204856174U CN 201520231408 U CN201520231408 U CN 201520231408U CN 204856174 U CN204856174 U CN 204856174U
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- radio frequency
- wireless transmission
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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
The utility model provides a suspension bridge cable safety integrated monitoring system, includes sensor detecting element, and sensor detecting element detects the subelement by a plurality of sensors and constitutes, and every sensor detects the subelement and comprises sensor, microcontroller no. 1 and RFID tag, detects cable safety state parameter to transfer radio frequency reading and writing unit with the radio frequency form, radio frequency reading and writing unit comprises a plurality of radio frequencies reading and writing subelement, and every radio frequency reading and writing subelement constitutes by radio frequency reader and microcontroller no. 2, reads RFID tag's data message and transmission and gives the wireless transmission unit, the wireless transmission unit includes data message and wireless transmission to remote control terminal that wireless transmission ware and the transmission of microcontroller three, receive radio frequency read write line come, the far away receipt and the analysis the data message that the wireless transmission ware of wireless transmission unit sent, the safe state of each position of comprehensive assessment cable. But the cable safety state of the remote monitoring of this system suspension bridge, the precision is high, and is with low costs.
Description
Technical field
The utility model relates to a kind of galvanized wire for suspension bridge safety comprehensive monitoring system, belongs to civil construction project field.
Background technology
Suspension bridge is the flexibility suspention system be made up of components such as main push-towing rope, stiff girder, king-tower, saddle, anchorage, hoist cables.Main push-towing rope is the topmost supporting member in Suspension bridge structure system, and it to be suspended on king-tower by tower top cable saddle and to be anchored in the anchoring body of two ends.Hoist cable is by the Force transmission parts that stiff girder is conducted oneself with dignity, external load is delivered to main push-towing rope, is the tie linking stiff girder and main push-towing rope.The two is all component very important in Suspension bridge structure system.But main push-towing rope and hoist cable in use can produce corrosion, affect its intensity; And due to the impact of the geologic structure such as traffic hazard, earthquake, sedimentation change, may there is deformation in a lot of main rope of suspension bridge and hoist cable, even rupture, and serious threat is to the safety of bridge.Therefore, it is very important for monitoring galvanized wire for suspension bridge (main push-towing rope and hoist cable) safety comprehensive.Now to the detection of galvanized wire for suspension bridge safe condition with safeguard mainly regular by climbing cable robot or manually climbing cable inspection and operation.Climb cable robot cost high, job insecurity, phenomenon that is stuck and that skid easily occurs; And manual detection, working strength is large, poor stability, and the detection of these two kinds of methods all to there is efficiency low and without drawback targetedly.Therefore, set up a set of galvanized wire for suspension bridge monitoring system to be necessary.
Utility model content
The purpose of this utility model is to provide a kind of galvanized wire for suspension bridge safety comprehensive monitoring system, and this system can monitor the cable safe condition of suspension bridge in real time long-range or as required, and monitoring accuracy is high, and cost is low; And this system significantly reduces the working strength of staff, improve security and the work efficiency of work; And this system can carry out specific aim maintenance according to real-time measurements to bridge, ensure the safety of bridge.
The utility model is realize the technical scheme that its goal of the invention takes to be: a kind of galvanized wire for suspension bridge safety comprehensive monitoring system, comprise sensor detecting unit, described sensor detecting unit is made up of the multiple sensor detection sub-unit being positioned at cable diverse location place, and its design feature is: the concrete formation of described each sensor detection sub-unit is:
Sensor, is installed on cable, for detecting present position cable safe condition parameter;
The microcontroller one be connected with sensor electrical and radio-frequency (RF) tag, for controlling the data message detected with storage sensors, and pass to radio frequency read-write cell by described data message with radio frequency form;
Described radio frequency read-write cell is read and write subelement by multiple radio frequency being arranged at rope bridge diverse location place and is formed, described each radio frequency read-write subelement is by frequency read/write and microcontroller two formation that is electrically connected with described frequency read/write, each radio frequency read-write subelement reads the data message of the radio-frequency (RF) tag of multiple sensor detection sub-unit within the scope of certain distance, and by described data information transfer to wireless transmission unit;
The microcontroller three that described wireless transmission unit comprises radio transmitters and is electrically connected with described radio transmitters, for the data message controlling the work of radio frequency read-write cell, the frequency read/write transmission of received RF read-write subelement comes, and described data message is wirelessly transmitted to remote control terminal;
Described remote control terminal is connected by long distance wireless with wireless transmission unit, wireless transmission cell operation described in Long-distance Control, receive and analyze described wireless transmission unit radio transmitters send data message, the safe condition of each position of Comprehensive Assessment cable.
The concrete mode that described long distance wireless connects is: be provided with wireless communication module in radio transmitters, be sent to by data message in Internet network; The data message that the remote control terminal with fixed ip address uses wired network adapter to be sent by Internet network acquisition radio transmitters.
The course of work of the present utility model is:
When A, regular (3 ~ 6 months) or the situation when the harm such as earthquake, traffic accident bridge security occur, remote control terminal sends wireless instructions, by controlling the microcontroller three of described wireless transmission unit, the microcontroller two of further control radio frequency read-write subelement, triggers described frequency read/write and sends pumping signal;
After the pumping signal of the radio-frequency (RF) tag received RF read write line transmission of B, sensor detection sub-unit, by the work of microcontroller one start sensor, record the safe condition parameter of cable, and be stored in radio-frequency (RF) tag; The data message of described cable safe condition parameter is passed to the frequency read/write of radio frequency read-write subelement by radio-frequency (RF) tag again with radio frequency form;
The frequency read/write of C, radio frequency read-write subelement is under microcontroller two controls, and by described data information transfer to wireless transmission unit, described data message is wirelessly transmitted to remote control terminal by radio transmitters by wireless transmission unit again;
D, remote control terminal receive and analyze the data message of the radio transmitters transmission of described wireless transmission unit, and the safe condition of each position of Comprehensive Assessment cable, when data exception, provides early warning signal.
Compared with prior art, the beneficial effects of the utility model are:
One, utilize the safe condition parameter of the sensor measurement diverse location place cable be installed on cable, monitoring accuracy is high, and cost is low, and can monitor the safe condition of cable diverse location simultaneously.
Two, radio communication transfer data information is passed through between sensor detecting unit and radio frequency reading unit, the data message of cable safety state information is sent to remote control terminal by wireless transmission unit by radio frequency reading unit again, without the need to by climbing cable robot or manually climbing detection, reduce cost, alleviate the working strength of staff; Particularly some are built in the suspension bridge in bad environments or ungetable place, remove Site Detection without the need to staff, improve job security and work efficiency.
Three, the utility model adopts wireless radio-frequency transmission cable safe condition parameter, cost is low, power consumption is few, each radio-frequency (RF) tag has the unique sequence numbers that a units can be put, like this, as long as the sequence number recording radio-frequency (RF) tag just can be easy to the cable safe condition determining radio-frequency (RF) tag present position.
Four, native system can be safeguarded bridge targetedly according to real-time measurements, under the prerequisite of the security ensureing bridge, reduces maintenance cost.
Five, after system installation, all operations are all completed by remote control terminal, significantly reduce the working strength of staff, improve security and the work efficiency of work, reduce cable inspection cost.
Six, when not needing image data, sensor detecting unit, radio frequency reading unit and wireless transmission unit are all in " dormancy " state, can not cause the waste of electric energy, can ensure system long-time running, and need not frequently spend manpower and materials to safeguard.
Further, the sensor of sensor detection sub-unit described in the utility model comprises the strain gauge measuring cable stress state.
Cable is one of topmost primary structure member of suspension bridge, and its stress state is the vital safe performance indexes of cable, is therefore the most important aspect of cable safety comprehensive monitoring to the monitoring of cable stress.
Further, the strain gauge of measurement cable stress state described in the utility model is resistance strain gage or Piezoelectric strain transducer.
These two kinds of strain gauges record suffered stress by the change of surveying cable strain, and measuring accuracy is high, and volume is little, with low cost.
Again further, the sensor of sensor detection sub-unit described in the utility model also comprises one or more of temperature sensor, humidity sensor and the wind speed wind direction sensor measuring ambient condition residing for cable.
Environment residing for cable can affect the safe condition of cable, and temperature, humidity and institute's by wind are three parameters affecting cable security in ambient condition most, so need to monitor one or several of this three parameters, to reach the object of cable safety comprehensive monitoring.
Further, the power supply of the microcontroller one of sensor detection sub-unit described in the utility model is solar energy charging battery and (or) dry cell.
Dry cell volume is little, and cost is low, and for powering for microcontroller, the dry cell of general capacity can apply several years, also namely can interval several years just change once, and solar energy charging battery can utilize solar recharging, can Long-Time Service, need not change; The two can be used alone, or complementary combinations uses.
Further, the sensor of each sensor detection sub-unit described in the utility model, microcontroller one and radio-frequency (RF) tag are packaged as a whole, and are protected by waterproof case.
Like this, can easily sensor detection sub-unit be installed on cable, and in use from the destruction of the climatic factors such as rainwater.
Controller two described in the utility model and controller three directly can be electrically connected with the power-supply unit on rope bridge.
As a kind of preferred version of the present utility model, wireless transmission unit described in the utility model is connected by short-range wireless with radio frequency read-write cell, and all radio frequencies that wireless transmission unit controls rope bridge is arranged are read and write subelement work, received the next data message of the frequency read/write transmission of described all radio frequencies read-write subelement, and described data message is wirelessly transmitted to remote control terminal.
Further, the concrete mode that wireless transmission unit described in the utility model is connected with radio frequency read-write cell short-range wireless is: wireless transmission unit and radio frequency read-write subelement are separately installed with the low-power consumption monolithic radio frequency transceiving chip working in 2.4 ~ 2.4835GHz or 5.725 ~ 5.850GHz frequency band, as nRF24L0 wireless module, in order to realize short-range wireless communication.
Like this, decrease the use of telecommunication chip, reduce cost, and the communication structure that short-range wireless connects is simple, communication speed is high, is easy to control and realize.
As another kind of preferred version of the present utility model, wireless transmission unit described in the utility model forms by reading and writing subelement one_to_one corresponding with radio frequency and reading and writing with corresponding radio frequency multiple wireless transmission subelements that subelement is electrically connected, the microcontroller three that each wireless transmission subelement comprises radio transmitters and is electrically connected with described radio transmitters, in order to receive the data message of radio frequency read-write subelement corresponding with it, and described data message is wirelessly transmitted to remote control terminal.
Like this, more easily realize the independent control of radio frequency read-write subelement, without the need to increasing short-range wireless communication chip in systems in which, structure is simple, and reliability is high.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one overall system architecture schematic diagram.
Fig. 2 is that in the utility model embodiment one, each unit of system lays view.
Fig. 3 is the utility model embodiment two system one-piece construction schematic diagram.
Fig. 4 is that in the utility model embodiment two, each unit of system lays view.
Embodiment
Embodiment one
Fig. 1 and Fig. 2 illustrates, a kind of embodiment of the present utility model is: a kind of galvanized wire for suspension bridge safety comprehensive monitoring system, comprise sensor detecting unit 1, described sensor detecting unit 1 is made up of the multiple sensor detection sub-unit 1.0 being positioned at cable diverse location place, its design feature is, the concrete formation of described each sensor detection sub-unit 1.0 is:
Sensor 1.1, is installed on cable, for detecting present position cable safe condition parameter;
The microcontroller 1 be electrically connected with sensor 1.1 and radio-frequency (RF) tag 1.3, for controlling the data message detected with storage sensors 1.1, and pass to radio frequency read-write cell 2 by described data message with radio frequency form;
Described radio frequency read-write cell 2 is read and write subelement 2.0 by multiple radio frequency being arranged at rope bridge diverse location place and is formed, described each radio frequency read-write subelement 2.0 is formed by frequency read/write 2.1 and the microcontroller 2 2.2 that is electrically connected with described frequency read/write 2.1, each radio frequency read-write subelement 2.0 reads the data message of the radio-frequency (RF) tag 1.3 of multiple sensor detection sub-unit 1.0 within the scope of certain distance, and by described data information transfer to wireless transmission unit 3;
The microcontroller 3 3.2 that described wireless transmission unit 3 comprises radio transmitters 3.1 and is electrically connected with described radio transmitters 3.1; Described wireless transmission unit 3 is connected by short-range wireless with radio frequency read-write cell 2, and a wireless transmission unit 3 controls all radio frequencies read-write subelements 2.0 that a rope bridge is arranged, the data message receiving frequency read/write 2.1 transmission of described all radio frequencies read-write subelement 2.0, and described data message is wirelessly transmitted to remote control terminal 4;
Described remote control terminal 4 is connected by long distance wireless with wireless transmission unit 3, described in Long-distance Control, wireless transmission unit 3 works, receive and analyze described wireless transmission unit 3 radio transmitters 3.1 send data message, the safe condition of each position of Comprehensive Assessment cable.
The sensor 1.1 of the detection sub-unit of sensor described in this example 1.0 comprises the strain gauge measuring cable stress state, and described strain gauge is resistance strain gage or Piezoelectric strain transducer.
The power supply of the microcontroller 1 of the detection sub-unit of sensor described in this example 1.0 is solar energy charging battery.
The sensor 1.1 of each sensor detection sub-unit 1.0 described in this example, microcontroller 1 and radio-frequency (RF) tag 1.3 are packaged as a whole, and are protected by waterproof case.
The concrete mode that the unit of wireless transmission described in this example 3 is connected with radio frequency read-write cell 2 short-range wireless is: each radio frequency read-write subelement 2.0 of wireless transmission unit 3 and radio frequency read-write cell 2 is all provided with the low-power consumption monolithic radio frequency transceiving chip working in 2.4 ~ 2.4835GHz or 5.725 ~ 5.850GHz frequency band, in order to realize short-range wireless communication.
Embodiment two
Fig. 3 and Fig. 4 illustrates, another kind of embodiment of the present utility model is: a kind of galvanized wire for suspension bridge safety comprehensive monitoring system, comprise sensor detecting unit 1, described sensor detecting unit 1 is made up of the multiple sensor detection sub-unit 1.0 being positioned at cable diverse location place, its design feature is, the concrete formation of described each sensor detection sub-unit 1.0 is:
Sensor 1.1, is installed on cable, for detecting present position cable safe condition parameter;
The microcontroller 1 be electrically connected with sensor 1.1 and radio-frequency (RF) tag 1.3, for controlling the data message detected with storage sensors 1.1, and pass to radio frequency read-write cell 2 by described data message with radio frequency form;
Described radio frequency read-write cell 2 is read and write subelement 2.0 by multiple radio frequency being arranged at rope bridge diverse location place and is formed, described each radio frequency read-write subelement 2.0 is formed by frequency read/write 2.1 and the microcontroller 2 2.2 that is electrically connected with described frequency read/write 2.1, each radio frequency read-write subelement 2.0 reads the data message of the radio-frequency (RF) tag 1.3 of multiple sensor detection sub-unit 1.0 within the scope of certain distance, and by described data information transfer to wireless transmission unit 3;
Described wireless transmission unit 3 forms by reading and writing subelement 2.0 one_to_one corresponding with radio frequency and reading and writing with corresponding radio frequency multiple wireless transmission subelements 3.0 that subelement 2.0 is electrically connected, the microcontroller 3 3.2 that each wireless transmission subelement 3.0 comprises radio transmitters 3.1 and is electrically connected with described radio transmitters 3.1, in order to receive the data message of radio frequency read-write subelement 2.0 corresponding with it, and described data message is wirelessly transmitted to remote control terminal 4;
Described remote control terminal 4 is connected by long distance wireless with wireless transmission unit 3, described in Long-distance Control, wireless transmission unit 3 works, receive and analyze described wireless transmission unit 3 radio transmitters 3.1 send data message, the safe condition of each position of Comprehensive Assessment cable.
The sensor 1.1 of the detection sub-unit of sensor described in this example 1.0 comprises the strain gauge measuring cable stress state, also comprises the temperature sensor measuring ambient condition residing for cable; Described strain gauge is resistance strain gage or Piezoelectric strain transducer.
The power supply of the microcontroller 1 of the detection sub-unit of sensor described in this example 1.0 is dry cell.
The sensor 1.1 of each sensor detection sub-unit 1.0 described in this example, microcontroller 1 and radio-frequency (RF) tag 1.3 are packaged as a whole, and are protected by waterproof case.
Embodiment three
This example is substantially identical with the system architecture of embodiment one, different only, in this example, the described microcontroller 1 of sensor detection sub-unit 1.0 is by solar cell and dry cell associating power supply.
Embodiment four
This example is substantially identical with the system architecture of embodiment one, different is only, the sensor 1.1 of the detection sub-unit of sensor described in this example 1.0 comprises the strain gauge measuring cable stress state, also comprises the temperature sensor and humidity sensor of measuring ambient condition residing for cable; Described strain gauge is resistance strain gage or Piezoelectric strain transducer.
Embodiment five
This example is substantially identical with the system architecture of embodiment one, different is only, the sensor 1.1 of the detection sub-unit of sensor described in this example 1.0 comprises the strain gauge measuring cable stress state, also comprises temperature sensor, humidity sensor and the air velocity transducer of measuring ambient condition residing for cable; Described strain gauge is resistance strain gage or Piezoelectric strain transducer.
Claims (9)
1. a galvanized wire for suspension bridge safety comprehensive monitoring system, comprise sensor detecting unit (1), described sensor detecting unit (1) is made up of the multiple sensor detection sub-unit (1.0) being positioned at cable diverse location place, it is characterized in that: the concrete formation of described each sensor detection sub-unit (1.0) is:
Sensor (1.1), is installed on cable, for detecting present position cable safe condition parameter;
The microcontroller one (1.2) be electrically connected with sensor (1.1) and radio-frequency (RF) tag (1.3), for the data message controlled and storage sensors (1.1) detects, and described data message is passed to radio frequency read-write cell (2) with radio frequency form;
Described radio frequency read-write cell (2) is read and write subelement (2.0) by multiple radio frequency being arranged at rope bridge diverse location place and is formed, described each radio frequency read-write subelement (2.0) is formed by frequency read/write (2.1) and the microcontroller two (2.2) that is electrically connected with described frequency read/write (2.1), each radio frequency read-write subelement (2.0) reads the data message of the radio-frequency (RF) tag (1.3) of multiple sensor detection sub-unit (1.0) within the scope of certain distance, and by described data information transfer to wireless transmission unit (3);
The microcontroller three (3.2) that described wireless transmission unit (3) comprises radio transmitters (3.1) and is electrically connected with described radio transmitters (3.1), for the data message controlling radio frequency read-write cell (2) work, frequency read/write (2.1) transmission of received RF read-write subelement (2.0) is come, and described data message is wirelessly transmitted to remote control terminal (4);
Described remote control terminal (4) is connected by long distance wireless with wireless transmission unit (3), wireless transmission unit (3) work described in Long-distance Control, receive and the data message that sends of the radio transmitters (3.1) analyzing described wireless transmission unit (3), the safe condition of each position of Comprehensive Assessment cable.
2. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 1, is characterized in that: the sensor (1.1) of described sensor detection sub-unit (1.0) comprises the strain gauge measuring cable stress state.
3. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 2, is characterized in that: the strain gauge of described measurement cable stress state is resistance strain gage or Piezoelectric strain transducer.
4. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 2, is characterized in that: the sensor (1.1) of described sensor detection sub-unit (1.0) also comprises one or more of temperature sensor, humidity sensor and the wind speed wind direction sensor measuring ambient condition residing for cable.
5. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 1, is characterized in that: the power supply of the microcontroller one (1.2) of described sensor detection sub-unit (1.0) is solar energy charging battery and (or) dry cell.
6. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 1, it is characterized in that: the sensor (1.1) of described each sensor detection sub-unit (1.0), microcontroller one (1.2) and radio-frequency (RF) tag (1.3) are packaged as a whole, and are protected by waterproof case.
7. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 1, it is characterized in that: described wireless transmission unit (3) is connected by short-range wireless with radio frequency read-write cell (2), and all radio frequencies that wireless transmission unit (3) control rope bridge is arranged are read and write subelement (2.0), received the next data message of frequency read/write (2.1) transmission of described all radio frequencies read-write subelement (2.0), and described data message is wirelessly transmitted to remote control terminal (4).
8. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 7, it is characterized in that: the concrete mode that described wireless transmission unit (3) is connected with radio frequency read-write cell (2) short-range wireless is: each radio frequency read-write subelement (2.0) of wireless transmission unit (3) and radio frequency read-write cell (2) is all provided with the low-power consumption monolithic radio frequency transceiving chip working in 2.4 ~ 2.4835GHz or 5.725 ~ 5.850GHz frequency band, in order to realize short-range wireless communication.
9. a kind of galvanized wire for suspension bridge safety comprehensive monitoring system according to claim 1, it is characterized in that: described wireless transmission unit (3) reads and writes subelement (2.0) one_to_one corresponding by with radio frequency, and read and write with corresponding radio frequency multiple wireless transmission subelements (3.0) that subelement (2.0) is electrically connected and form, the microcontroller three (3.2) that each wireless transmission subelement (3.0) comprises radio transmitters (3.1) and is electrically connected with described radio transmitters (3.1), in order to receive the data message of radio frequency read-write subelement (2.0) corresponding with it, and described data message is wirelessly transmitted to remote control terminal (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231408.XU CN204856174U (en) | 2015-04-16 | 2015-04-16 | Suspension bridge cable safety integrated monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231408.XU CN204856174U (en) | 2015-04-16 | 2015-04-16 | Suspension bridge cable safety integrated monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204856174U true CN204856174U (en) | 2015-12-09 |
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ID=54746710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520231408.XU Withdrawn - After Issue CN204856174U (en) | 2015-04-16 | 2015-04-16 | Suspension bridge cable safety integrated monitoring system |
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| Country | Link |
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| CN (1) | CN204856174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777815A (en) * | 2015-04-16 | 2015-07-15 | 成都柏森松传感技术有限公司 | Comprehensive monitoring system and method of suspension bridge cable safety |
| US9940814B1 (en) | 2017-05-11 | 2018-04-10 | International Business Machines Corporation | Cable suspension detection |
-
2015
- 2015-04-16 CN CN201520231408.XU patent/CN204856174U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777815A (en) * | 2015-04-16 | 2015-07-15 | 成都柏森松传感技术有限公司 | Comprehensive monitoring system and method of suspension bridge cable safety |
| US9940814B1 (en) | 2017-05-11 | 2018-04-10 | International Business Machines Corporation | Cable suspension detection |
| US10049554B1 (en) | 2017-05-11 | 2018-08-14 | International Business Machines Corporation | Cable suspension detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171013 |