CN104574964A - Pavement structure durability and dynamic traffic monitoring system - Google Patents
Pavement structure durability and dynamic traffic monitoring system Download PDFInfo
- Publication number
- CN104574964A CN104574964A CN201510009876.7A CN201510009876A CN104574964A CN 104574964 A CN104574964 A CN 104574964A CN 201510009876 A CN201510009876 A CN 201510009876A CN 104574964 A CN104574964 A CN 104574964A
- Authority
- CN
- China
- Prior art keywords
- load transducer
- monitoring system
- traffic monitoring
- comparison means
- pavement structure
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- 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.)
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
Abstract
The invention discloses a pavement structure durability and dynamic traffic monitoring system. The pavement structure durability and dynamic traffic monitoring system comprises a first load sensor, a second load sensor, a constant voltage source, a signal amplifier, a data acquisition instrument and a comparison device, wherein the constant voltage source is connected with the first load sensor and the second load sensor, the first load sensor and the second load sensor are both connected with the data acquisition instrument through the signal amplifier, and the data acquisition instrument is connected with the comparison device. According to the pavement structure durability and dynamic traffic monitoring system, the traffic volume and the traffic load can be monitored by analyzing collected data, the pavement damage degree can be judged at the same time, and then the durability of a pavement can be monitored; by the adoption of the constant voltage source and the signal amplifier, the change, caused by a pavement load change, of resistance of a carbon nano-tube cement-based composite material sensor can be measured accurately, and the load detection sensitivity is high.
Description
Technical field
The present invention relates to construction material and traffic engineering technical field, particularly relate to a kind of pavement structure permanance and dynamic traffic monitoring system.
Background technology
Along with developing rapidly of national economy, transportation industry progress by leaps and bounds.Heavy Traffic is also of common occurrence with hypervelocity phenomenon, and meanwhile, road surface medium-capital overhauling phenomenon has become one of focus of attention in traffic engineering.From intelligent transportation system (Intelligent Transport System, be called for short IRS) propose since, many countries propose respective development strategy in succession, attempt to adopt various advanced technology, people involved by traffic system, car, road and environment comprehensive are made it play intelligence effect together, thus make traffic system reach safe, unobstructed, low public hazards and few target that consumes energy.As element indispensable in intelligent transportation system, the intelligent traffic monitoring system that cost of development is low, function admirable, monitoring accuracy are high, applied widely has important practical significance.
The at present conventional volume of traffic, the monitoring of the speed of a motor vehicle mainly rely on the instruments such as optical, electrical, acoustics to carry out, and are divided into the modes such as laser velocimeter, radar velocity measurement, ordinary video test the speed, precise video tests the speed and the real-time precise video of multilane tests the speed.All there is certain drawback in these modes, such as apparatus expensive, location comparison is obvious, fixing, and safeguard cumbersome, complicated operation, Part Methods error is larger.If driver, after being familiar with monitoring equipment installation site violating the regulations, will hide monitoring artificially.Like this to the monitoring that the magnitude of traffic flow is carried out, easily there is detection leakage phenomenon, and the often manpower of at substantial and the expense of specialized equipment.
Carbon nano-tube cement-base composite material load transducer is applied in cement concrete pavement and belongs to this structure material sensors, is embedded in cement concrete and has good compatibility, need not bury underground in addition and destroy the globality on road surface, may be used in Traffic monitoring.In addition, carbon nano-tube cement-based material is embedded in good concealment on road surface, and can the layout measuring point of large area and system-wide section.
Summary of the invention
Technical matters to be solved by this invention is for problem involved in background technology, provides a kind of practical, reliable, low cost pavement structure permanance and dynamic traffic monitoring system.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of pavement structure permanance and dynamic traffic monitoring system, comprise the first load transducer, the second load transducer, constant pressure source, signal amplifier, data collecting instrument and comparison means, described constant pressure source is electrically connected with the first load transducer, the second load transducer respectively, described first load transducer, the second load transducer are all electrically connected by signal amplifier and data collecting instrument, and described data collecting instrument and comparison means are electrically connected;
Described first load transducer, the second load transducer all adopt carbon nano-tube cement-base composite material, are embedded on road surface by the distance preset;
Described signal amplifier is for the voltage and current amplifying described first load transducer, the second load transducer senses;
Passed to comparison means after the voltage and current that described data collecting instrument is used for sensing according to the first load transducer, the second load transducer that receive calculates the resistance of the first load transducer, the second load transducer respectively, simultaneously by automobile by the Time Transmission of the first load transducer, the second load transducer to comparison means;
Described comparison means comprises durable comparing unit and speed comparing unit;
Described durable comparing unit is used for giving the alarm when the resistance minimum peak of described first load transducer, the second load transducer is less than default resistance threshold information;
Described speed comparing unit is used for the speed being calculated automobile according to automobile by the distance between time of the first load transducer, the second load transducer and the first load transducer, the second load transducer, and the information that gives the alarm when the speed of automobile is more than or equal to default threshold speed.
As a kind of pavement structure permanance of the present invention and the further prioritization scheme of dynamic traffic monitoring system, between described data collecting instrument and comparison means, serial ports is adopted to connect.
As a kind of pavement structure permanance of the present invention and the further prioritization scheme of dynamic traffic monitoring system, described comparison means adopts computing machine.
As a kind of pavement structure permanance of the present invention and the further prioritization scheme of dynamic traffic monitoring system, the scope of described default distance is 1 meter to 20 meters.
As a kind of pavement structure permanance of the present invention and the further prioritization scheme of dynamic traffic monitoring system, described default distance is 5 meters.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. long service life.
Load transducer of the present invention uses carbon nano-tube cement-base composite material, and first, carbon nano-tube self has excellent mechanical property, and Young modulus up to 1TPa, can be close to and exceed 5 times than steel; The tensile strength of carbon nano-tube can reach 63GPa or exceed 10% again, 50 times of the chances are steel; Secondly, cement-base composite material is porous structure, there is a large amount of pores and micropore in matrix, carbon nano-tube mix the porosity significantly reducing cement matrix, refinement pore diameter distribution, makes the structure of compound substance more closely knit; Again, the nano-scale of carbon nano-tube and high-specific surface area make it to be scattered in matrix can form an enhancing network, and the crack in bridging matrix and cavity, ensure that good Stress transmit.These make the mechanical property of carbon nano-tube cement-base composite material be improved, and obtained load transducer is not fragile, is embedded in underground simultaneously, is not vulnerable to artificial destruction yet, and serviceable life increases.
2. compatibility is good.
Load transducer of the present invention this as cement-based material, the characteristic of not change structure in embedded concrete structure, and also there is not discontinuous interface problem between sensor and surrounding concrete medium, there will not be stress mutation phenomenon.
3. highly sensitive.
Carbon nano-tube also has outstanding power electrical property, and when being subject to effect of stress, the electrical properties of carbon nano-tube can change, and the corresponding different stress level of carbon nano-tube cement-base composite material shows a kind of pressure-sensitive reaction linearly and repeatedly.Its resistance corresponds to the real-time change of pressure, also achieves the Real-Time Monitoring ability of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, the invention discloses a kind of pavement structure permanance and dynamic traffic monitoring system, comprise the first load transducer, the second load transducer, constant pressure source, signal amplifier, data collecting instrument and comparison means, described constant pressure source is electrically connected with the first load transducer, the second load transducer respectively, described first load transducer, the second load transducer are all electrically connected by signal amplifier and data collecting instrument, and described data collecting instrument and comparison means are electrically connected;
Described first load transducer, the second load transducer all adopt carbon nano-tube cement-base composite material, are embedded on road surface by the distance preset;
Described signal amplifier is for the voltage and current amplifying described first load transducer, the second load transducer senses;
Passed to comparison means after the voltage and current that described data collecting instrument is used for sensing according to the first load transducer, the second load transducer that receive calculates the resistance of the first load transducer, the second load transducer respectively, simultaneously by automobile by the Time Transmission of the first load transducer, the second load transducer to comparison means;
Described comparison means comprises durable comparing unit and speed comparing unit;
Described durable comparing unit is used for giving the alarm when the resistance minimum peak of described first load transducer, the second load transducer is less than default resistance threshold information;
Described speed comparing unit is used for the speed being calculated automobile according to automobile by the distance between time of the first load transducer, the second load transducer and the first load transducer, the second load transducer, and the information that gives the alarm when the speed of automobile is more than or equal to default threshold speed.
Described comparison means adopts computing machine, adopts serial ports to connect between described data collecting instrument and computing machine.
The scope of described default distance is 1 meter to 20 meters, is preferentially set to 5 meters.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its steel structure can be flexible and changeable, can subseries scheme.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (5)
1. a pavement structure permanance and dynamic traffic monitoring system, it is characterized in that, comprise the first load transducer, the second load transducer, constant pressure source, signal amplifier, data collecting instrument and comparison means, described constant pressure source is electrically connected with the first load transducer, the second load transducer respectively, described first load transducer, the second load transducer are all electrically connected by signal amplifier and data collecting instrument, and described data collecting instrument and comparison means are electrically connected;
Described first load transducer, the second load transducer all adopt carbon nano-tube cement-base composite material, are embedded on road surface by the distance preset;
Described signal amplifier is for the voltage and current amplifying described first load transducer, the second load transducer senses;
Passed to comparison means after the voltage and current that described data collecting instrument is used for sensing according to the first load transducer, the second load transducer that receive calculates the resistance of the first load transducer, the second load transducer respectively, simultaneously by automobile by the Time Transmission of the first load transducer, the second load transducer to comparison means;
Described comparison means comprises durable comparing unit and speed comparing unit;
Described durable comparing unit is used for giving the alarm when the resistance minimum peak of described first load transducer, the second load transducer is less than default resistance threshold information;
Described speed comparing unit is used for the speed being calculated automobile according to automobile by the distance between time of the first load transducer, the second load transducer and the first load transducer, the second load transducer, and the information that gives the alarm when the speed of automobile is more than or equal to default threshold speed.
2. pavement structure permanance according to claim 1 and dynamic traffic monitoring system, is characterized in that, adopts serial ports to connect between described data collecting instrument and comparison means.
3. pavement structure permanance according to claim 1 and dynamic traffic monitoring system, is characterized in that, described comparison means adopts computing machine.
4. pavement structure permanance according to claim 1 and dynamic traffic monitoring system, is characterized in that, the scope of described default distance is 1 meter to 20 meters.
5. pavement structure permanance according to claim 1 and dynamic traffic monitoring system, is characterized in that, described default distance is 5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009876.7A CN104574964A (en) | 2015-01-09 | 2015-01-09 | Pavement structure durability and dynamic traffic monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009876.7A CN104574964A (en) | 2015-01-09 | 2015-01-09 | Pavement structure durability and dynamic traffic monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN104574964A true CN104574964A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510009876.7A Pending CN104574964A (en) | 2015-01-09 | 2015-01-09 | Pavement structure durability and dynamic traffic monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801784A (en) * | 2018-04-03 | 2018-11-13 | 华北理工大学 | A kind of carbon nano tube compound material structural healthy monitoring system |
| CN111999188A (en) * | 2020-08-20 | 2020-11-27 | 淮安市博彦土木工程科学研究院有限公司 | Asphalt mortar multiple stress creep testing method based on different driving behavior combinations of road intersection |
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| WO1997001836A1 (en) * | 1995-06-28 | 1997-01-16 | Guangdong China Wealth High-Technology Development Co., Ltd | Electronic traffic management system |
| CN101344987A (en) * | 2007-07-13 | 2009-01-14 | 同济大学 | Vehicle detection apparatus and detection method |
| CN202369941U (en) * | 2011-09-22 | 2012-08-08 | 建维科技（深圳）有限公司 | Traffic monitoring beam, traffic road structure and dynamic traffic monitoring system |
| CN102789691A (en) * | 2012-08-21 | 2012-11-21 | 北京信息科技大学 | Detecting method and detecting system of flow and speed of vehicles |
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2015
- 2015-01-09 CN CN201510009876.7A patent/CN104574964A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997001836A1 (en) * | 1995-06-28 | 1997-01-16 | Guangdong China Wealth High-Technology Development Co., Ltd | Electronic traffic management system |
| CN101344987A (en) * | 2007-07-13 | 2009-01-14 | 同济大学 | Vehicle detection apparatus and detection method |
| CN202369941U (en) * | 2011-09-22 | 2012-08-08 | 建维科技（深圳）有限公司 | Traffic monitoring beam, traffic road structure and dynamic traffic monitoring system |
| CN102789691A (en) * | 2012-08-21 | 2012-11-21 | 北京信息科技大学 | Detecting method and detecting system of flow and speed of vehicles |
Non-Patent Citations (1)
| Title |
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| 姜海峰: "自感知碳纳米管水泥基复合材料及其在交通探测中的应用", 《硕士学位论文电子期刊》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801784A (en) * | 2018-04-03 | 2018-11-13 | 华北理工大学 | A kind of carbon nano tube compound material structural healthy monitoring system |
| CN111999188A (en) * | 2020-08-20 | 2020-11-27 | 淮安市博彦土木工程科学研究院有限公司 | Asphalt mortar multiple stress creep testing method based on different driving behavior combinations of road intersection |
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Application publication date: 20150429 |