CN109297575A - A kind of vehicle dynamic weighing system of piezoelectric type - Google Patents
A kind of vehicle dynamic weighing system of piezoelectric type Download PDFInfo
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- CN109297575A CN109297575A CN201811131184.XA CN201811131184A CN109297575A CN 109297575 A CN109297575 A CN 109297575A CN 201811131184 A CN201811131184 A CN 201811131184A CN 109297575 A CN109297575 A CN 109297575A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
- G01G19/035—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion using electrical weight-sensitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/48—Temperature-compensating arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention relates to a kind of vehicle dynamic weighing systems of piezoelectric type, belong to vehicle dynamic weighing field.The system includes dynamic weighing hardware system and software systems；Hardware system includes 4G router, weighing host and signal conditioner, after carrying out parameter configuration by software systems, the signal and vehicle license plate information of acquisition sensor in real time, collected signal carries out data analysis and processing by software systems again, calculate vehicle speed, wheelbase, axis weight, gross weight, pavement temperature essential information, vehicle essential information matches with license board information and is transmitted to cloud platform by 4G router/network interface after packing.Weighing system of the present invention have it is at low cost, stability is good, high reliablity, can rapid deployment, be suitble to long-term field work.
Description
Technical field
The invention belongs to vehicle dynamic weighing fields, are related to a kind of vehicle dynamic weighing system of piezoelectric type.
Background technique
Currently, overloading is more and more common in highway transportation, vehicle overload overload transportation not only makes road and bridge
Deng maintenance cost be continuously increased, service life shortens rapidly, and brings larger threat to road and bridge security operation.
Conventional truck dynamic weighing system mainly includes bended plate type dynamic weighing system and dynamic automobile scale.Conventional truck is dynamic
State weighing system is expensive, requires height to installation environment, and vehicle low speed is needed to pass through.It is mainly used for charge station's equipotential
It sets, is not particularly suited for the environment such as the faster road of speed, bridge.The Instrument for Weigh-in-Motion installation of piezoelectric type is simple and convenient, is
Stability of uniting is good, is suitable for the application scenarios such as urban road and expressway.Temperature is larger to piezoelectric membrane systematic influence, leads to base
Be affected by temperature in the dynamic weighing system of piezoelectric membrane signal it is larger, need to system carry out temperature adjustmemt.
Summary of the invention
In view of this, the purpose of the present invention is to provide one kind, cost is relatively low, stability is high, install convenient piezoelectric type vehicle
Dynamic weighing system, hardware system cooperation software systems can realize vehicle dynamic weighing and Car license recognition function；Realize vehicle
Road sensor flexible configuration, the convenient adjustable function of system parameter；Rejecting temperature influences the measuring precision；Realize that lane passes
Sensor can arbitrary disposition function.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of vehicle dynamic weighing system of piezoelectric type, including dynamic weighing hardware system and software systems；The hardware
After system carries out parameter configuration by software systems, the signal and vehicle license plate information of sensor, collected letter are acquired in real time
Data analysis and processing are carried out by software systems number again, it is basic to calculate vehicle speed, wheelbase, axis weight, gross weight, pavement temperature
Information, vehicle essential information by 4G router/network interface are transmitted to cloud platform after matching packing with license board information；
The hardware system includes: 4G router (1), weighing host (2) and signal conditioner (3)；The 4G router
(1) carried out data transmission with weighing host (2) by RJ45 network interface (9,10) connection；The signal conditioner (3) and weighing master
Machine (2) carries out signal transmission by DB37 communication interface (11,14) connection；Instruction letter is carried out by USB interface (12,13) connection
Breath interaction.
The weighing system has the function of adjustment of weight: adjusting weighing weight model by hardware system or software systems
It encloses, lane piezoelectric transducer, ground induction coil, the installation number of temperature sensor and operating mode, to adapt to a variety of sections, more
The use of scape.
Further, the software systems include parameter configuration software, camera candid photograph software, data acquisition software, data point
Analyse software and software packaging；The parameter configuration software weighing system bottom running parameter and upper layer calculating parameter are matched
It sets, data acquisition software and camera are captured software and acquired in real time to sensing data after the completion of configuration, Data Analysis Software
Collected real time data is analyzed and processed, vehicle essential information and capture pictures are packaged by last software packaging
Reach server；Under offline condition, information of vehicles is locally stored, realizes that data suspension retransmits after network recovery.
Further, the software for data analysis contains: 1) dynamic weighing algorithm: the data of combined data acquisition software acquisition
Calculate vehicle speed, wheelbase, axis weight, gross weight and real-time pavement temperature information；2) sensor real time data when passing through to vehicle
Waveform is shown；3) temperature compensation algorithm: combination temperature sensing data eliminates influence of the temperature to the measuring precision.
The software systems have function: 1) parameter configuration: a, configuring to hardware system bottom parameter, to system work
Operation mode and function are configured；B, configuration data capture card and signal conditioner operating mode, adjustment data collecting card work
Sample rate, signal conditioner sensitivity；Sensor and candid camera is cooperated to realize vehicle dynamic weighing, Car license recognition；In net
In the case that network is not good enough, suspension functions of retransmission is realized；2) temperature adjustmemt is carried out to measurement result according to real-time measuring data, eliminated
Influence of the temperature to measurement essential information measurement result, improves system accuracy.
Further, the weighing host (2) includes: industrial personal computer (4), data collecting card (5) and power interface (34)；Thereon
It is additionally provided with 3 DB37 communication interfaces (11), 2 RJ45 network interfaces (10,31) and 5 USB interfaces (12)；
USB interface (12) are drawn on the industrial personal computer (4), and progress parameter and functional configuration are connect with signal conditioner (3)；
The data collecting card (5) is inserted on industrial personal computer (4) bottom plate by pci interface, integral with industrial personal computer encapsulation；Data collecting card
(5) DB37 communication interface (11) are drawn on to connect with signal conditioner (3)；
The weighing host (2), which is connect by RJ45 network interface (10) with 4G router (1), to carry out data transmission, and passes through DB37
Communication interface (11) acquires sensor signal, carries out functional configuration to signal conditioner (3) by USB interface (12)；It is reserved
RJ45 network interface (31) is connected with camera is captured, and obtains real-time grasp shoot picture.
Further, every set industrial personal computer at most accesses 3 sets of data capture cards, every sets of data capture card and 1 set of signal tune
It manages device pairing to use, be increased and decreased according to number of track-lines, maximum supports the measurement of 12 lane vehicle weights, and every sets of data capture card provides
1 DB37 communication interface (11) connect with signal conditioner.
Further, the signal conditioner (3) include: piezoelectric signal conditioner (6), temperature signal regulation device (7), feel
Coil signal conditioner (8), gain switch (32), USB interface (13), DB37 communication interface (14), signaling interface (15~30)
With power interface (33)；
The piezoelectric signal conditioner, temperature signal regulation device, ground induction coil signal conditioner and gain switch are respectively mounted
On signal conditioner bottom plate, an entirety is encapsulated as by cabinet；Sensor connects from interface (15-30) on the left of signal conditioner
Enter signal conditioner, the signal after conditioning is transmitted to weighing host (2) by right side DB37 communication interface (14)；Signal conditioner
Weighing host command is received by USB interface (12,13), coil signal conditioner is felt over the ground and carries out functional configuration；
Further, the signaling interface (15-30) uses BNC connector mode.
Further, the gain switch (32) is the toggle switch of 16P, and every 4P is a lane gain switch, Mei Geche
Road has 4 gear yield values adjustable, for adjust gain shelf grade to adjust vehicle weight effective range；Signal after conditioning passes through
DB37 communication interface (14) is transmitted to weighing host and carries out data acquisition, analysis and processing.
Further, the piezoelectric signal conditioner is converted to voltage signal after charge signal is carried out signal condition；It is described
Temperature signal regulation device will be converted to voltage signal after temperature signal regulation；The ground induction coil signal conditioner is by ground induction coil
Signal is converted to analog voltage signal and digital signal, carries out signal acquisition, analysis and processing for weighing host.
Further, it is soft by parameter configuration after the sensor accesses signal conditioner by signal (15~30) interface
Part is associated configuration to lane number of sensors and type；
The sensor includes: piezoelectric transducer, temperature sensor and ground induction coil sensor；The piezoelectric transducer connects
Enter signaling interface (15-22), the temperature sensor accesses signaling interface (23-26), the ground induction coil sensor access letter
Number interface (27-30).
The beneficial effects of the present invention are:
1) present invention select commercial scale plant carry out modularized design, have it is at low cost, stability is good, high reliablity, can
The advantages that rapid deployment, suitable long-term field work；
2) have the function of temperature adjustmemt, influence of the temperature to the measuring precision can be rejected by algorithm；With lane
Sensor configuration feature can be directed to the collocation mode of different use environment lower sensor different numbers；
3) gain switch is set, can be laid for the road of a variety of different vehicle weight measurement demands；Preserved signal
Conditioner configures port, easily can adjust the sensitivity of ground induction coil signal conditioner by software systems and corresponding function is set
It sets；
4) Instrument for Weigh-in-Motion core of the industrial personal computer as piezoelectric type is used, system is reliable and stable, and software function is abundant,
It is easy and fast to integrated and Function Extension；
5) pairing is captured camera and is used, and realizes that Car license recognition, license plate are matched with information of vehicles.In the bad feelings of network signal
It realizes and is locally stored under condition, realize that suspension retransmits after network recovery.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is dynamic weighing system structural schematic diagram of the present invention；
Appended drawing reference: 1-4G router, 2- weighing host, 3- signal conditioner, 4- industrial personal computer, 5- data collecting card, 6-
Piezoelectric signal conditioner, 7- temperature signal regulation device, 8- ground induction coil signal conditioner, 9/10/31-RJ45 network interface, 11/14-
DB37 communication interface, 12/13-USB interface, 15~30- signaling interface, 32- gain switch, 33/34- power interface.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
The vehicle dynamic weighing system of piezoelectric type of the present invention is divided into hardware system and software systems, as described in Figure 1,
Hardware system includes 4G router 1, weighing host 2 and signal conditioner 3, and 4G router 1 and weighing host 2 pass through RJ45 cable
Connection；Signal conditioner 3 and weighing host 1 are attached by DB37 signal wire and USB line.
Piezoelectric transducer, temperature sensor and ground induction coil access signal conditioner 3 by BNC connector respectively.Piezoelectricity letter
Number conditioner 6 carries out charge signal to be converted to voltage signal after signal condition, and temperature signal regulation device 7 is by temperature signal regulation
After be converted to voltage signal, ground induction coil signal is converted to analog voltage signal to ground induction coil signal conditioner 8 and number is believed
Number signal acquisition, analysis and processing are carried out for weighing host.
The quantity of data collecting card 5 and signal conditioner 3 is increased and decreased according to number of track-lines, could support up the acquisition of 3 sets of data
Card and signal conditioner, maximum support the vehicle weight information measurement in 12 lanes.
After sensor accesses signal conditioner 3, lane number of sensors and type are closed by parameter configuration software
Connection configuration.
After the completion of lane configurations, lane weight range is configured by toggle switch, passes through parameter configuration software pair
Signal conditioner 3 carries out parameter configuration.
Piezoelectric transducer, temperature sensor, ground induction coil, shooting camera, parameter configuration software, camera is cooperated to capture soft
Part, data acquisition software and Data Analysis Software realize that vehicle speed, the number of axle, wheelbase, axis weight, gross weight carry out dynamic measurement, disappear
Influence except temperature to the measuring precision is uploaded in real time after being packaged the essential informations such as vehicle weight with candid photograph information matches
Cloud platform.Under offline condition, realization is locally stored and suspension resumes.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of vehicle dynamic weighing system of piezoelectric type, which is characterized in that the system includes dynamic weighing hardware system and soft
Part system；After the hardware system carries out parameter configuration by software systems, the signal and vehicle license plate of sensor are acquired in real time
Information, collected signal carry out data analysis and processing by software systems again, and it is heavy, total to calculate vehicle speed, wheelbase, axis
Weight, pavement temperature essential information, vehicle essential information is matched with license board information be packaged after cloud is transmitted to by 4G router/network interface
Platform；
The hardware system includes: 4G router (1), weighing host (2) and signal conditioner (3)；The 4G router (1) and
Weighing host (2) is carried out data transmission by RJ45 network interface (9,10) connection；The signal conditioner (3) and weighing host (2)
It is connected by DB37 communication interface (11,14) and carries out signal transmission；It is connected by USB interface (12,13) and carries out command information friendship
Mutually.
2. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 1, which is characterized in that the software systems
Software, data acquisition software, Data Analysis Software and software packaging are captured including parameter configuration software, camera；The parameter is matched
Set software weighing system bottom running parameter and upper layer calculating parameter configured, after the completion of configuration data acquisition software and
Camera is captured software and is acquired in real time to sensing data, and Data Analysis Software carries out collected real time data at analysis
Reason, vehicle essential information and capture pictures be packaged by last software packaging is uploaded to server；It is local under offline condition
Information of vehicles is stored, realizes that data suspension retransmits after network recovery.
3. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 2, which is characterized in that the data analysis
Software includes: 1) dynamic weighing algorithm: the data of combined data acquisition software acquisition calculate vehicle speed, wheelbase, axis weight, gross weight
With real-time pavement temperature information；2) sensor real time data waveform when passing through to vehicle is shown；3) temperature compensation algorithm:
Combination temperature sensing data eliminates influence of the temperature to the measuring precision.
4. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 1, which is characterized in that the weighing host
It (2) include: industrial personal computer (4), data collecting card (5) and power interface (34)；It is additionally provided with 3 DB37 communication interfaces thereon
(11), 2 RJ45 network interfaces (10,31) and 5 USB interfaces (12)；
USB interface (12) are drawn on the industrial personal computer (4), and progress parameter and functional configuration are connect with signal conditioner (3)；It is described
Data collecting card (5) is inserted on industrial personal computer (4) bottom plate by pci interface, integral with industrial personal computer encapsulation；Data collecting card (5)
Upper extraction DB37 communication interface (11) connect with signal conditioner (3)；
The weighing host (2), which is connect by RJ45 network interface (10) with 4G router (1), to carry out data transmission, and is communicated by DB37
Interface (11) acquires sensor signal, carries out functional configuration to signal conditioner (3) by USB interface (12)；Reserved RJ45 net
Mouth (31) is connected with camera is captured, and obtains real-time grasp shoot picture.
5. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 4, which is characterized in that every set industry control
Machine at most accesses 3 sets of data capture cards, and every sets of data capture card and 1 set of signal conditioner pairing are used, carried out according to number of track-lines
Increase and decrease, maximum support the measurement of 12 lane vehicle weights, and every sets of data capture card provides 1 DB37 communication interface (11) and signal tune
Manage device connection.
6. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 1, which is characterized in that the signal condition
Device (3) includes: piezoelectric signal conditioner (6), temperature signal regulation device (7), ground induction coil signal conditioner (8), gain switch
(32), USB interface (13), DB37 communication interface (14), signaling interface (15~30) and power interface (33)；
The piezoelectric signal conditioner, temperature signal regulation device, ground induction coil signal conditioner and gain switch are installed in letter
On number conditioner bottom plate, an entirety is encapsulated as by cabinet；Sensor accesses letter from interface (15-30) on the left of signal conditioner
Number conditioner, the signal after conditioning are transmitted to weighing host (2) by right side DB37 communication interface (14)；Signal conditioner passes through
USB interface (12,13) receives weighing host command, feels coil signal conditioner over the ground and carries out functional configuration.
7. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 6, which is characterized in that the signaling interface
(15-30) uses BNC connector mode.
8. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 6, which is characterized in that the gain switch
(32) toggle switch for being 16P, every 4P are a lane gain switch, and each lane has 4 gear yield values adjustable, are increased for adjusting
Beneficial shelf grade is to adjust vehicle weight effective range；Signal after conditioning is transmitted to weighing master by DB37 communication interface (14)
Machine carries out data acquisition, analysis and processing.
9. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 6, which is characterized in that the piezoelectric signal
Conditioner is converted to voltage signal after charge signal is carried out signal condition；The temperature signal regulation device is by temperature signal regulation
After be converted to voltage signal；Ground induction coil signal is converted to analog voltage signal and number by the ground induction coil signal conditioner
Signal carries out signal acquisition, analysis and processing for weighing host.
10. a kind of vehicle dynamic weighing system of piezoelectric type according to claim 6, which is characterized in that the sensor
After accessing signal conditioner by signal (15~30) interface, by parameter configuration software to lane number of sensors and type into
Row associated configuration；
The sensor includes: piezoelectric transducer, temperature sensor and ground induction coil sensor；The piezoelectric transducer access letter
Number interface (15-22), the temperature sensor access signaling interface (23-26), and the ground induction coil sensor access signal connects
Mouth (27-30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131184.XA CN109297575A (en) | 2018-09-27 | 2018-09-27 | A kind of vehicle dynamic weighing system of piezoelectric type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131184.XA CN109297575A (en) | 2018-09-27 | 2018-09-27 | A kind of vehicle dynamic weighing system of piezoelectric type |
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| CN109297575A true CN109297575A (en) | 2019-02-01 |
Family
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| CN201811131184.XA Pending CN109297575A (en) | 2018-09-27 | 2018-09-27 | A kind of vehicle dynamic weighing system of piezoelectric type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345057A (en) * | 2020-10-27 | 2021-02-09 | 合肥市正茂科技有限公司 | Temperature error correction system and method for road vehicle automatic weighing apparatus |
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