CN103017825A - Wireless bridge health monitoring device with multi-energy supply - Google Patents
Wireless bridge health monitoring device with multi-energy supply Download PDFInfo
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Abstract
The invention provides a wireless bridge health monitoring device with multi-energy supply. The wireless bridge health monitoring device comprises a power collecting and management module, a sensor module, a microprocessor module, a wireless communication module, a wireless route node and an alarming module. The power collecting and management module is connected with the microprocessor module and the wireless communication module and can provide electric energy for the microprocessor module and the wireless communication module. A digital passive sensor in the sensor module is connected with the microprocessor module directly, an analog quantity passive sensor is connected with the microprocessor module through a signal processing circuit, the microprocessor module is connected with the wireless communication module, and the wireless communication module sends data to the wireless route node in wireless mode and then to a central monitoring room. The wireless bridge health monitoring device can collect and use various green energy resources in an environment, does not need an extra power supply, and is high in energy use rate, simple in device structure and high in data collecting precision and information transmission efficiency.
Description
Technical field
The invention belongs to the Bridge Health Monitoring Technology field, be specifically related to one kind of multiple green energy resources and supply with, need not the wireless network bridge health monitoring system of additional power supply.
Background technology
Since the 1950's, fast development along with the bridge construction cause, and in the use of bridge, owing to be subject to physical environment and some artificial infringements, the continuous generation of some bridge collapse accidents, the importance of bridge health monitoring is familiar with gradually, use Bridge Health Monitoring Technology, the various constructional aspects of observation and analysis bridge, issue early warning signal when bridge is in unsafe condition, to guarantee the normal operation of bridge, this maintenance to bridge, management all have very important significance.And based on the development that has radio sensing network and sensor technology now, corresponding application has been arranged also aspect bridge health monitoring.The technology that some bridge health monitoring data acquisitions have been arranged at present, be described in 200720140648.4 the patent such as application number, this patent is to adopt internal battery or external artificial monitoring charging supply power, the bridge of two CPU deal with data patterns detects wireless data acquisition device, there is following shortcoming in these devices: 1, adopting battery or single power supply is system power supply, and energy acquisition and conversion efficiency are low; 2, two CPU and duplex module have increased the power consumption of system; 3, the sensor that adopts is analog sensor, and signal demand is through filtering and amplification, mould/number conversion, this greatly reduce data acquisition accuracy and the time stickiness, and increased the energy consumption of system.
Summary of the invention
Technical matters to be solved by this invention provides the wireless bridge health monitoring device that a kind of multiple-energy-source is supplied with, it adopts multiple green energy resource to supply with, energy utilization efficiency is high, apparatus structure simple, the data acquisition degree of accuracy is high, information transfer efficiency is high, overcome exist in the Bridge Health Monitoring Technology of existing proposition need external power source, power supply is single, power consumption is larger deficiency.
For this reason, the present invention by the following technical solutions: the wireless bridge health monitoring device that a kind of multiple-energy-source is supplied with, it comprises power supply collection and administration module, sensor assembly, microprocessor module, wireless communication module, wireless routing node, alarm module; The power supply collection is connected with microprocessor module, wireless communication module with administration module, and for they provide electric energy; Have digital passive sensor and analog sensor in the sensor assembly, digital passive sensor directly links to each other with microprocessor module, analog sensor is connected with microprocessor module through signal conditioning circuit again, microprocessor module is connected with wireless communication module, wireless communication module sends data to wireless routing node by radio, and and then is sent to central control room.
On the basis of adopting technique scheme, the present invention also can adopt following further technical scheme:
Comprise electricity collection module, power management chip, super capacitor in power supply collection and the administration module; Electricity collection module involving vibrations energy module, wind energy module, solar energy module; The electricity collection module is collected respectively energy of vibration, wind energy and the sun power of pontic by energy of vibration module, wind energy module and solar energy module, and be converted to system's voltage available grade, the electricity collection module connects power management chip, power management chip connects super capacitor, and super capacitor connects microprocessor module and wireless communication module is its power supply.
Be connected to simultaneously the voltage monitoring pin of microprocessor module at the super capacitor output voltage, microprocessor module can be according to the voltage of the super capacitor output that collects, adopt " RUN " and " dormancy " time of fuzzy intelligence algorithm management self, realize the mode of operation that microprocessor module " RUN " and " dormancy " replace.
A plurality of sensors in the described sensor assembly can be connected to a microprocessor module simultaneously.
Microprocessor module connects alarm module, and when different monitor values exceeded predetermined warning value, alarm module was realized onsite alarming, by network warning message is transferred to central control room simultaneously, sends corresponding alerting signal at central control room's monitoring interface.
Wireless communication module adopts the 3G module, and wireless communication module and wireless routing node are realized MANET.
Described passive sensor module comprises the passive sensor that load to bridge, surface topography, structural strength etc. are measured.Passive sensor does not need the power supply of additional power supply, thereby has saved a large amount of energy consumptions.In the sensor assembly digital quantity passive sensor and analog quantity passive sensor are arranged simultaneously.The analog quantity passive sensor is adopted in measurement to partial parameters, the analog quantity passive sensor passes through corresponding signal conditioning circuit in succession to microprocessor module, the digital quantity passive sensor is adopted in measurement to partial parameters, and the signal conditioning circuit in the middle of need not is connected directly to microprocessor module.Thereby the circuit in the middle of having reduced has reduced interference, makes whole device more reliable and more stable.
The responsible data that sensor is collected of described microprocessor module are processed and are stored, set warning value, just send corresponding onsite alarming signal and Control Room alerting signal when monitor value exceeds setting warning value alarm module.The information and date that microprocessor module will be processed transfers to wireless communication module.Microprocessor module is responsible for the management of power supply simultaneously, detects in real time the ultracapacitor electric weight of storing and the voltage of exporting, and regulates the " RUN " and " dormancy " time of microprocessor module, makes the supply of electric energy reach optimum condition.
Described wireless communication module is connected with microprocessor module, by sensor collection and the data after microprocessor module is processed, sends in real time wireless routing node by wireless communication module.
Described wireless routing node is realized and a plurality of wireless communication module carries out networking, is organized into the star wireless network topology structure, and reception is from the different pieces of information monitoring information of bridge diverse location, and with data transmission to central control room.
The invention has the beneficial effects as follows, can be converted on the basis of electric energy supply in various energy resources, need not extra power supply supply, can greatly reduce the operation and maintenance cost, and can pass through technology of wireless sensing network, more accurately realize in real time the monitoring to the bridge health situation.
Description of drawings
Fig. 1 one-piece construction synoptic diagram of the present invention.
Fig. 2 power management part-structure of the present invention synoptic diagram.
Fig. 3 energy of vibration module of the present invention scheme of installation (spaning middle section).
Fig. 4 solar energy module of the present invention and wind energy module scheme of installation.
Fig. 5 time of the present invention is lacked (ST), (MT), time are grown (LT) Membership Function Distribution figure in the time
Fig. 6 weak point of the present invention (S), medium (M), long (L) Membership Function Distribution figure
Embodiment
As shown in Figure 1, the present invention includes power supply collect are connected with administration module, sensor assembly 1, microprocessor module 6, wireless communication module 7, wireless routing node 8, alarm module 5, power supply collection be connected with administration module and be connected with microprocessor module 6, wireless communication module 7, and for they provide electric energy; Have digital passive sensor 2 and analog sensor 3 in the sensor assembly 1, digital passive sensor 2 directly links to each other with microprocessor module 6, analog sensor 3 is connected with microprocessor module 6 through signal conditioning circuit 4 again, microprocessor module 6 is connected with wireless communication module 7, wireless communication module 7 is by the wireless wireless routing node 8 that sends data to, and and then is sent to central control room.
The parameters such as the load of sensor assembly 1 collection bridge, surface topography, structural strength, and parameter transferred to microprocessor module 6,6 pairs of data that collect of microprocessor module are processed and are stored, set warning value, when exceeding setting warning value alarm module 5, detected value sends the onsite alarming signal, by network warning message is transferred to central control room simultaneously, sends corresponding alerting signal at central control room's monitoring interface.
Power supply collection and administration module are collected energy of vibration, wind energy, the sun power of pontic.
Comprise electricity collection module 11, power management chip 10, super capacitor 9 in power supply collection and the administration module 15.Electricity collection module 11 involving vibrations energy module 12, wind energy module 13, solar energy module 14.Electricity collection module 11 is collected respectively energy of vibration, wind energy and the sun power of pontic by energy of vibration module 12, wind energy module 13 and solar energy module 14, and the system that is converted to also is this device voltage available grade, electricity collection module 11 connects power management chip 10, power management chip 10 connects super capacitor 9, and super capacitor 9 connects microprocessor module 6 and wireless communication module 7 and is its power supply.
As shown in Figure 3 and Figure 4, the wind energy module 13 in the electricity collection module 11 and solar energy module 14 are installed in the optimum position of bridge according to relevant regulations, and energy of vibration module 12 is installed on the larger place of Oscillation Amplitude of bridge.Because the vibration of bridge itself, vibrator bar in the energy of vibration module 12 just has Voltage-output, the electric energy of sun power, wind energy, energy of vibration output is connected to power management chip LTC358810 by rectifier bridge, filtering circuit, voltage stabilizing chip, connect super capacitor 9 by power management chip LTC358810, and discharging and recharging of ultracapacitor 9 managed.And then provide electric energy by super capacitor 9 for microprocessor module 6, wireless communication module 7, realize simultaneously the mode of operation that microprocessor module 6 " RUN "s and " dormancy " replace.The output voltage of super capacitor 9 is connected to the voltage detecting pin of microprocessor module 6, detects in real time the output voltage of super capacitor 9.Utilize the " RUN " and " dormancy " time of fuzzy intelligence algorithm management microprocessor module 6.Because the microprocessor module 6 that adopts, the supply voltage V of wireless communication module 7 are 3.3V, when the voltage V that detects super capacitor 9 is in 2.5V～3.3V, microprocessor module 6 is in the " RUN " state, when voltage V is lower than 2.5V, microprocessor module 6 is in " dormancy " state, super capacitor 9 charges, recording voltage V is down to the time T of 2.5V from 3.3V during this period, determine the dormancy time t of microprocessor module 6 by the intelligent fuzzy algorithm according to time T, the intelligent fuzzy algorithm of employing is specific as follows:
The Fuzzy Distribution of the amount of 1, determine input, exporting is chosen the triangle subordinate function to the fuzzy subset of T
1), selected three fuzzy subsets: the time is lacked (ST), (MT), time are grown (LT) in the time, are used for containing the domain [0,100] of input quantity x, and their subordinate function is as follows, and it distributes as shown in Figure 5:
ST(x)＝(50-x)/50 0≤x≤50
LT(x)＝(x-50)/50 50＜x≤100
2), selected three fuzzy subsets are contained the domain [0,40] of output quantity t: lack (S), medium (M), long (L), their membership function is as follows:
S(t)＝(10-t)/10 0≤t＜10
L(t)＝(t-10)/15 10＜t≤25
2, set up fuzzy rule
Can three fuzzy rules below the summarizes according to relevant experience:
" voltage V is short from the time T that 3.3V is down to 2.5V, and the time t of microprocessor module dormancy is made as weak point "
" voltage V is medium from the time T that 3.3V is down to 2.5V, and the time t of microprocessor module dormancy is made as medium "
" voltage V is long from the time T that 3.3V is down to 2.5V, and the time t of microprocessor module dormancy is made as length.
Rule list is as follows:
3, approximate resoning
For fuzzy rule, it is output as " if x is ST then t is S "
U
1(t)＝ST(x)∧S(t)
It is output as " if x is MT then t is M "
U
2(t)＝MT(x)∧M(t)
It is output as " if x is LT then t is L "
U
3(t)＝LT(x)∧L(t)
The fuzzy subset U (t) of output is three subset U at last
1(t), U
2(t), U
3(t) also:
U(t)=U
1(t)∨U
2(t)∨U
3(t)
4, obtain the sharpening of fuzzy quantity U (t)
Here the fuzzy quantity clarification method that adopts is that the maximum membership degree method is calculated, and on domain [0,25], can according to the maximum membership degree of obtaining, obtain the maximal value of t.
Described passive sensor module 1 comprises the sensor that the parameters such as load to bridge, surface topography, structural strength are measured.These passive sensors need not again external power supply, and the analog sensor output signal is connected to microprocessor module 6 through modulate circuit, and is processed by microprocessor module 6.The part digital sensors need not modulate circuit can be connected directly to microprocessor module 6.A plurality of sensors can be connected to a microprocessor module, mainly comprise following a few class sensor: the carload detecting sensor can detect dangerous situation and in time send alerting signal before dangerous load is by bridge; Temperature monitoring sensor, monitoring girder the temperature inside the box and environment temperature; Moisture detection sensor, the monitoring bridge is the inside and outside humidity situation of nowel beam in working order, thus according to security and the duty of humidity to the impact evaluation bridge of case beam; The dynamic deflection monitoring sensor can monitor the deformation state of crossstructure comparatively easily and accurately; The vibration monitoring sensor is monitored bridge moving force characteristic and level of vibration; Bearing deformation monitoring sensor, the displacement of bridge structure under load action understood in the monitoring displacement of bearing under the bridge duty, infers simultaneously the duty of full-bridge bearing by the monitoring of part bearing, for maintenance and the bearing replacement of bridge provides information.Can better understand the health status of bridge to the monitoring of these parameters of bridge.
What the primary processor that described microprocessor module 6 adopts was selected is the MSP430F5438 single-chip microcomputer of TI company, and this single-chip microcomputer has the advantages such as low-voltage, low-power consumption, processing power are strong, is highly suitable for the occasion of low-power consumption.Microprocessor module 6 is at first finished initial work, according to the difference of the sensor that each pin of processor is connected, microprocessor module 6 pins is configured.The input of analog sensor 3 need be processed through the conversion of the A/D in the sheet.The input of digital sensors 2 need not conversion, microprocessor module 6 is directly processed its data that transmit, for accuracy and the data transmission efficiency that improves Monitoring Data, can process various the data median filtering methods, namely totally gather 10 values, remove wherein maximal value, minimum value and get the mean value of remaining 8 conversion values.Process the data that obtain after submodule obtains to process through data, to its storage, send the onsite alarming signal when detected value exceeds the warning value alarm module 5 that has set on the one hand.With after the data packing encapsulation that collects, transfer to wireless routing node 8 by wireless communication module 7 on the other hand.
Described wireless communication module 7 is crossed wireless mode to the data communication device of processing through microprocessor module 6 and is sent to wireless routing node 8.The CDMAEV-DO of Huawei module that wireless communication module 7 adopts based on the MC703-EVB platform.Be connected with mainboard by the RS-232 serial ports.The MC703 of Huawei supports the communication of 800/1900MHz frequency range; Embedded ICP/IP protocol, power consumption are lower; Abundant Man Machine Interface is simple and easy to use.
Described wireless routing node 8 receives and comes from the data that wireless communication module 7 transmits, and wireless routing node 8 carries out communication by fiber optic network or other communications and CSRC center, makes the health status of Surveillance center's Real-Time Monitoring bridge.
Claims (6)
1. the wireless bridge health monitoring device supplied with of a multiple-energy-source is characterized in that it comprises that power supply is collected and administration module (15), sensor assembly (1), microprocessor module (6), wireless communication module (7), wireless routing node (8), alarm module (5); Power supply is collected and to be connected 15 with administration module) be connected with microprocessor module (6), wireless communication module (7), and for they provide electric energy; Have digital passive sensor (2) and analog quantity passive sensor (3) in the sensor assembly (1), digital passive sensor (2) directly links to each other with microprocessor module (6), analog quantity passive sensor (3) is connected with microprocessor module (6) through signal conditioning circuit (4) again, microprocessor module (6) is connected with wireless communication module (7), wireless communication module (7) is by the wireless wireless routing node (8) that sends data to, and and then is sent to central control room.
2. the wireless bridge health monitoring device of supplying with by a kind of multiple-energy-source described in the claim 1 is characterized in that comprising electricity collection module (11), power management chip (10), super capacitor (9) in power supply collection and the administration module (15); Electricity collection module (11) involving vibrations energy module (12), wind energy module (13), solar energy module (14); Electricity collection module (11) is collected respectively energy of vibration, wind energy and the sun power of pontic by energy of vibration module (12), wind energy module (13) and solar energy module (14), and be converted to system's voltage available grade, electricity collection module (11) connects power management chip (10), power management chip (10) connects super capacitor (9), and super capacitor (9) connects microprocessor module (6) and wireless communication module (7) is its power supply.
3. the wireless bridge health monitoring device of supplying with by a kind of multiple-energy-source described in the claim 1, it is characterized in that being connected to simultaneously at super capacitor (9) output voltage the voltage monitoring pin of microprocessor module (6), microprocessor module (6) can be according to the voltage of the super capacitor output that collects, adopt " RUN " and " dormancy " time of fuzzy intelligence algorithm management self, realize the mode of operation that microprocessor module (6) " RUN " and " dormancy " replace.
4. the wireless bridge health monitoring device of supplying with by a kind of multiple-energy-source described in the claim 1 is characterized in that a plurality of sensors in the described sensor assembly are connected to a microprocessor module (6) simultaneously.
5. the wireless bridge health monitoring device of supplying with by a kind of multiple-energy-source described in the claim 1, it is characterized in that microprocessor module (6) connects alarm module (5), when different monitor values exceeds predetermined warning value, alarm module (5) is realized onsite alarming, by network warning message is transferred to central control room simultaneously, sends corresponding alerting signal at central control room's monitoring interface.
6. the wireless bridge health monitoring device of supplying with by a kind of multiple-energy-source described in the claim 1 is characterized in that wireless communication module (7) adopts 3G module, wireless communication module (7) and wireless routing node (8) MANET.
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| CN109247660A (en) * | 2018-07-02 | 2019-01-22 | 登鼎（上海）网络科技有限公司 | Passive heat generating insole |
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| CN112082597A (en) * | 2020-08-14 | 2020-12-15 | 北京机械设备研究所 | Bridge detection system |
| CN114509112A (en) * | 2022-02-15 | 2022-05-17 | 陕西理工大学 | Wireless bridge health remote multi-parameter monitoring system |
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| CN114509112A (en) * | 2022-02-15 | 2022-05-17 | 陕西理工大学 | Wireless bridge health remote multi-parameter monitoring system |
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Application publication date: 20130403 |