CN207676181U - A kind of dangerous material storage and transportation monitoring system based on surface acoustic wave measuring technology - Google Patents
A kind of dangerous material storage and transportation monitoring system based on surface acoustic wave measuring technology Download PDFInfo
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- CN207676181U CN207676181U CN201720784566.7U CN201720784566U CN207676181U CN 207676181 U CN207676181 U CN 207676181U CN 201720784566 U CN201720784566 U CN 201720784566U CN 207676181 U CN207676181 U CN 207676181U
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Abstract
A kind of dangerous material storage and transportation monitoring system based on surface acoustic wave measuring technology, it includes signal gathering unit, data transmission unit, prewarning unit, electronic remote communication unit and monitoring center；Signal gathering unit is connected with monitoring center respectively by data transmission unit and electronic remote communication unit, and monitoring center is connected with prewarning unit, and signal gathering unit includes surface acoustic wave（SAW）Temperature sensor；Compared with prior art, using the surface acoustic wave of passive and wireless（SAW）Thermometry greatly improves flexibility, reliability and the safety of dangerous material storage and transportation thermometric；Also to the speed of service of hazardous materials transportation tank car, the information such as GPS positioning carry out unified data processing, it is tracked so as to form the safe operation data dynamic of hazardous materials transportation tank car, it can preferably ensure transporting safely during hazardous materials transportation, especially in the Ferry Status in the regions such as bridge, tunnel, break foreign countries in surface acoustic wave（SAW）The monopolization in thermometry field.
Description
Technical field
The utility model is related to a kind of storage and transportations to monitor system, more particularly to a kind of danger based on surface acoustic wave measuring technology
Product storage and transportation monitors system.
Background technology
In terms of dangerous material storage and transportation monitoring technology, oneself is increasingly deep to monitoring systematic research for developed countries and regions at present
Enter.Every country has put into a large amount of human and material resources, financial resources carry out dangerous material secure storage and transportation research.
China is the production and transportation big country of container/tank case/tank car.The Hazardous Chemical Substances of China's storage and transportation has more than 130
Kind.Wherein nearly half is the larger kind of quantity.Among these, poisonous and harmful, flammable explosive gas is the most important thing of storage and transportation,
Considerable part such as removes liquefied petroleum gas using the means of transportation of land route tank car（Carbon monoxide）Outside, only year in chlorine China
Yield alreadys exceed 6,000,000 tons.Data are shown, when the chlorine containing 0.1mmg concentration in every cubic metres of air is just enough to environment
It is damaged with personnel.Therefore, the state that chemicals stores place and transports tank car is monitored, especially to transporting tank car
Temperature detection, monitoring, full-scale digital management, not only to highway in transit, tunnel, it is unusual that the safety of bridge has
Security implications, and to personnel, the safety of property also provides comparable guarantee.In addition, storing place and vehicle to dangerous material
The digitlization of transport, networking, real time implementation management also comply with following developing direction.
Hazardous materials transportation tank car not only has distance long, load conditions are multiple in the transportational process for transporting all kinds of dangerous material
The factors such as miscellaneous, but also because the variation of various natural situations, such as temperature, humidity cause transportational process situation intricate.It is all
This is various, not only to dangerous material store and transport bring larger uncertain factor, but will because of during storage and transport from
The variation of the artificial condition of right condition or other outsides, the generation for causing temperature to vary widely, thus causing a serious accident.
Currently, surface acoustic wave（SAW）The development of sensor technology provides for the state of temperature on-line monitoring of power equipment
A kind of reliable scheme.Due to the use of passive wireless technologies, current electric system temperature monitoring problem encountered can be overcome.
And domestic application surface acoustic wave（SAW）Technology is monitored not yet dangerous material storage and transportation.
In recent years, with social progress and the sustained and rapid development of national economy, road hazard product transport service day is cumulative
More, the hazardous materials transportation safety management in China is faced with new challenges.And due to China's dangerization ship, dangerization train transport power is insufficient and
Network of highways construction it is perfect.Highway transportation has become the main path of high added value hazardous materials transportation, proportion at present
It is continuously improved, especially hypertoxic, the inflammable and explosive dangerous material of transport railway transport embargo, such as acrylonitrile（Severe toxicity）, propylene（Easily
It fires explosive）, liquid chlorine, formaldehyde etc., be all that its circulation operating is realized by highway transportation.Increasingly increased hazardous materials transportation is to city
Town, crowd, the threat in river are increasing, and the safety problem of hazardous materials transportation has obtained higher and higher attention.Dangerous material are transported
The quantity that the traffic accidents such as rollover, collision, leakage and explosion occur for defeated vehicle is also in the trend obviously risen.Hazardous materials transportation thing
Therefore once occur, it not only causes damages to vehicle and traffic itself, it is often more important that the serious destruction of surrounding enviroment may be caused
With people's life, the loss of property.
In this background, it to prevent the generation of hazardous material road transportation accident, reduces hazardous material road transportation accident and makes
At loss, from the angle of traffic, management, informationization, the monitoring management for reinforcing hazardous material road transportation is extremely important.
Dangerous material store the safety and reliability of place and haulage vehicle to sensor, and more stringent requirements are proposed.Tradition
Thermometric mode have infrared measurement of temperature, active IC classes thermometric, optical fiber temperature-measurement, but all there is certain defects for these thermometric modes.
Infrared measurement of temperature needs manual inspection that cannot implement to monitor key point temperature, in harsh environments, such as smog, dust, steam,
It blocks optical system and influences accurate thermometric；The power supply of active class sensor-use pond needs timing to replace battery, and battery exists
It is unable to reliably working under high or low temperature；The wiring of optical fiber class thermometric is difficult, and there are problems that creeping discharge, need to have and longer climb electricity along face
Distance etc..
Surface acoustic wave（SAW）The development of sensor technology provides one kind for hazardous materials transportation state of temperature on-line monitoring
Scheme with great potential.Due to the use of passive wireless technologies, current temperature monitoring problem encountered can be overcome.
It is accordingly required in particular to a kind of dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system, it is above-mentioned to solve
Existing problem.
Utility model content
The purpose of this utility model is to provide a kind of, and the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system,
In view of the deficiencies of the prior art, pass through the surface acoustic wave of passive and wireless（SAW）Thermometry forms hazardous materials transportation tank car
Safe operation data dynamic tracks, preferably transporting safely during guarantee hazardous materials transportation, especially in bridge, tunnel etc.
The Ferry Status in region greatly improves flexibility, reliability and the safety of dangerous material storage and transportation thermometric.
Following technical scheme may be used to realize in the technical issues of the utility model is solved：
A kind of dangerous material storage and transportation monitoring system based on surface acoustic wave measuring technology, which is characterized in that it includes that signal is adopted
Collect unit, data transmission unit, prewarning unit, electronic remote communication unit and monitoring center；Signal gathering unit passes through data
Transmission unit and electronic remote communication unit are connected with monitoring center respectively, and monitoring center is connected with prewarning unit, and signal is adopted
It includes surface acoustic wave to collect unit（SAW）Temperature sensor.
In one embodiment of the utility model, surface acoustic wave（SAW）Temperature sensor by piezoelectric material, reflecting grating and
Interdigital transducer（IDT）Composition.
In one embodiment of the utility model, signal gathering unit includes surface acoustic wave（SAW）Temperature sensor, speed
Spend sensor and GPS positioning module, surface acoustic wave（SAW）Temperature sensor is mounted on dangerous material storage place and storage and transportation tool
On, signal gathering unit acquires each associated dynamic data on storage and transportation tool, sends signal to local data collector in real time,
Then processing locality is carried out, including amplification, filtering and the temperature-compensating etc. of signal finally unify to pass through processed signal
Data transmission unit transmits.
In one embodiment of the utility model, signal gathering unit is arranged at expressway access, all kinds of tunnels
Inlet, bridge inlet etc. acquire each associated dynamic data on dangerous material storage and transportation tool, are sent to monitoring center in real time,
All storage and transportation tools can all be monitored in real time by the Ferry Status of above-mentioned zone.
In one embodiment of the utility model, data transmission unit includes that fieldbus controller and fieldbus are received
Device is sent out, the sensor stored on place or storage and transportation tool is interconnected by data transmission unit.
In one embodiment of the utility model, prewarning unit includes the alarm, alarm lamp and communication being separately connected
Equipment.
In one embodiment of the utility model, electronic remote communication unit includes communication control unit and passes through teletransmission
Radio station, phone or radio station mode communicate connection driver end, test point, the rescue point near test point and supervisory monitoring respectively
Center.
The dangerous material storage and transportation based on surface acoustic wave measuring technology of the utility model monitors system, compared with prior art,
Using the surface acoustic wave of passive and wireless（SAW）Thermometry greatly improves flexibility, reliability and the peace of dangerous material storage and transportation thermometric
Quan Xing；Also to the speed of service of hazardous materials transportation tank car, the information such as GPS positioning carry out unified data processing, so as to form
The safe operation data dynamic of hazardous materials transportation tank car tracks, and can preferably ensure transporting safely during hazardous materials transportation,
Especially in the Ferry Status in the regions such as bridge, tunnel, break foreign countries in surface acoustic wave（SAW）The monopolization in thermometry field,
Realize the purpose of this utility model.
The characteristics of the utility model, sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clear
Ground understands.
Description of the drawings
Fig. 1 is that the dangerous material storage and transportation based on surface acoustic wave measuring technology of the utility model monitors the structural representation of system
Figure；
Fig. 2 is the surface acoustic wave of the utility model（SAW）The structural schematic diagram of temperature sensor；
Fig. 3 is the structural schematic diagram of the signal gathering unit of the utility model；
Fig. 4 is the structural schematic diagram of the prewarning unit of the utility model；
Fig. 5 is the structural schematic diagram of the electronic remote communication unit of the utility model.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in Figure 1, the dangerous material storage and transportation based on surface acoustic wave measuring technology of the utility model monitors system, it includes
Signal gathering unit 10, data transmission unit 20, prewarning unit 30, electronic remote communication unit 40 and monitoring center 50；Signal
Collecting unit 10 is connected with monitoring center 50 respectively by data transmission unit 20 and electronic remote communication unit 40, in monitoring
The heart 50 is connected with prewarning unit 30, and signal gathering unit 10 includes surface acoustic wave（SAW）Temperature sensor 11.
As shown in Fig. 2, surface acoustic wave（SAW）Temperature sensor 11 is by piezoelectric material, reflecting grating and interdigital transducer（IDT）
Composition.
The surface acoustic wave of wireless and passive（SAW）Temperature sensor 11 in addition to itself have the characteristics that it is pure it is passive other than, also have
Have that service life is long, can resist adverse circumstances, the easy to install and use and distinguishing features such as at low cost, and can be in very wide temperature
Work in range is spent, is the ideal chose for carrying out wireless temperature measurement.
When work, reader emits a branch of request signal, surface acoustic wave first（SAW）Antenna on temperature sensor receives
Mechanical wave is converted by IDT after to the radiofrequency signal, mechanical wave is propagated along piezoelectric material surface, is met reflecting grating and is reflected back toward
The mechanical wave being reflected back is converted into electromagnetic wave by IDT, IDT again, is emitted by antenna.Reader is parsed by SAW temperature sensor
The answer signal beamed back obtains the temperature of testee.
Surface acoustic wave（SAW）Temperature sensor uses single port mode of resonance structure, the structure to have high quality factor Q, low
The advantages that insertion loss and good frequency stability.
Surface acoustic wave（SAW）The frequency values that temperature sensor returns show good linear relationship with measuring temperature, survey
Amount temperature is：Tc = T0+(FC+F0)/Kf
In formula：T0 is calibration temperature value；Frequency values when F0 is temperature correction；Kf is temperature frequency coefficient, with piezoelectricity
Material, the design of sensor chip are related with working frequency range, and Kf can be considered a definite value in certain working frequency range；FC is SAW
The frequency values of temperature sensor return signal.Reader parses collected Fc values, obtains current temperature value Tc.
Surface acoustic wave（SAW）The temperature-measuring range of temperature sensor 11 is -25~+125 DEG C.
As shown in figure 3, signal gathering unit 10 includes surface acoustic wave（SAW）Temperature sensor, velocity sensor and GPS are fixed
Position module；In the present embodiment, signal gathering unit 10 includes that sonicated unit 11, the sound wave interconnected successively is controlled
Unit 12, frequency detector 13 and sound wave receiving unit 14 processed, sound wave occur 12 front end of control unit and are connected with loudspeaker 15, and sound wave connects
The rear end for receiving unit 14 is connected with antenna 16.
Surface acoustic wave（SAW）Temperature sensor is mounted on dangerous material storage place and storage and transportation tool, signal gathering unit
Each associated dynamic data on storage and transportation tool are acquired, local data collector is sent signal in real time, is then originally located in
Reason, including amplification, filtering and the temperature-compensating etc. of signal finally unify to pass processed signal by data transmission unit
It is defeated.
Signal gathering unit is arranged at expressway access, all kinds of tunnel entrances, bridge inlet etc., acquisition is dangerous
Each associated dynamic data on product storage and transportation tool, are sent to monitoring center in real time, and all storage and transportation tools pass through the fortune of above-mentioned zone
Defeated situation can all be monitored in real time.
Data transmission unit 20 includes fieldbus controller and Field Bus Transceiver, is stored on place or storage and transportation tool
Sensor interconnected by data transmission unit.
For fieldbus controller using SJA1000 as controller, it is high integration fieldbus controller, is had more
Main structure bus access priority, in groups with broadcasting packet function and hardware filtering function.Field Bus Transceiver uses
82C250, it is the interface between field bus protocol controller and physical bus.
Fieldbus is the serial communication protocol of ISO International standardizations.The maximum feature of one of field bus protocol is useless
In addition to traditional station address encodes, and instead communicating data block is encoded.In this way the advantages of, can make network
Interior node number is unrestricted in theory, and the identification code of data block can be made of 11 or 29 bits, therefore can
It is this in such a way that data block encodes to define 211 or 229 different data blocks, it can also make different nodes while receive
To identical data, this point is highly useful in dcs.Data segment, length is up to 8 bytes, can meet
The general requirement of control command, working condition and test data in usual industrial circle.Meanwhile 8 bytes will not occupy bus
Overlong time, to ensure that the real-time of communication.Field bus protocol is using CRC check and can provide corresponding error handle
Function ensure that the reliability of data communication.Characteristic, high reliability and the unique design of fieldbus brilliance, especially
It is suitble to the interconnection of industrial process monitoring equipment.
As shown in figure 4, prewarning unit 30 includes alarm 31, alarm lamp 32 and the communication apparatus 33 being separately connected.
Prewarning unit 30：After monitoring center 50 obtains data, local alarm mechanism can be established, by VC++
MSComm controls operated to the data received, and string is such as opened in various operations of this class wrapper to serial ports
Mouthful, serial ports is read, is write to serial ports.The foundation of local early warning mechanism can be carried out simultaneously：The signal that the processing locality of acquirement is crossed
Compared with corresponding pre-set dangerous values in database, if there is danger, then local early warning is carried out, and generate alarm
Information.
The MSComm controls that VC++6.0 is provided send and receive data by serial port, are provided serially for application program
Communication function.
As shown in figure 5, electronic remote communication unit 40 include communication control unit 41 and by teletransmission radio station, phone or
Radio station mode communicates connection driver end, test point, the rescue point near test point and supervisory monitoring center 50 respectively.
Electronic remote communication unit 40：Vehicle-mounted GPS receiver receives the location data sent by satellite, and calculates ground
Manage position coordinates.GPRS combinations GPS obtains vehicle location signal and the collected transducing signal in front, passes through wireless modulation-demodulation
Device, using the form of short message by information such as the position of vehicle, state, alarm sensor inputs, with the transmission sides TCP/IP
Formula is sent to the monitoring center 50 with public network IP up, to realize the wireless transmission of gathered data.Monitoring center 50 is through meter
Just and the correct coordinates of corresponding position are shown on map with the electronic map match on computer, after the processing of calculation machine in monitoring
The heart 50 can clearly and intuitively grasp vehicle multidate information.
In monitoring center 50, all tank car vehicles can all be monitored in real time, their each signal dynamics curve will be with
Vehicle operation does not stop to change.When security risk occurs, such as certain vehicle is collided, and normal speed signal will produce one
Abnormal pause waveform.Such as in combination with the data of each SAW monitoring temperatures on vehicle, you can judge accident severity and
Property.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system, which is characterized in that it includes signal acquisition
Unit, data transmission unit, prewarning unit, electronic remote communication unit and monitoring center；Signal gathering unit is passed by data
Defeated unit and electronic remote communication unit are connected with monitoring center respectively, and monitoring center is connected with prewarning unit, signal acquisition
Unit includes surface acoustic wave（SAW）Temperature sensor.
2. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that sound
Surface wave（SAW）Temperature sensor is by piezoelectric material, reflecting grating and interdigital transducer（IDT）Composition.
3. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that letter
Number collecting unit includes surface acoustic wave（SAW）Temperature sensor, velocity sensor and GPS positioning module, surface acoustic wave（SAW）Temperature
It spends sensor to be mounted on dangerous material storage place and storage and transportation tool, signal gathering unit acquires each related dynamic on storage and transportation tool
State data send signal to local data collector in real time, then carry out processing locality, including the amplification of signal, filtering, with
And finally unification transmits processed signal by data transmission unit for temperature-compensating.
4. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that letter
Number collecting unit is arranged at expressway access, all kinds of tunnel entrances, bridge inlet, acquire on dangerous material storage and transportation tool
Each associated dynamic data, be sent to monitoring center in real time, all storage and transportation tools all can be by by the Ferry Status of above-mentioned zone
Monitoring in real time.
5. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that number
Include fieldbus controller and Field Bus Transceiver according to transmission unit, the sensor stored on place or storage and transportation tool passes through
Data transmission unit interconnects.
6. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that pre-
Alert unit includes the alarm, alarm lamp and communication apparatus being separately connected.
7. the dangerous material storage and transportation based on surface acoustic wave measuring technology monitors system as described in claim 1, which is characterized in that remote
Journey telecommunications unit includes communication control unit and communicates connection driver respectively by teletransmission radio station, phone or radio station mode
End, test point, the rescue point near test point and supervisory monitoring center.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813024A (en) * | 2020-07-28 | 2020-10-23 | 惠州市旭宝光电科技有限公司 | Transportation positioning tracking and temperature monitoring system for hazardous chemical containers |
-
2017
- 2017-07-01 CN CN201720784566.7U patent/CN207676181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813024A (en) * | 2020-07-28 | 2020-10-23 | 惠州市旭宝光电科技有限公司 | Transportation positioning tracking and temperature monitoring system for hazardous chemical containers |
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