CN114877980A - Real-time weighing system and method for concrete tank truck - Google Patents
Real-time weighing system and method for concrete tank truck Download PDFInfo
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- CN114877980A CN114877980A CN202210431481.6A CN202210431481A CN114877980A CN 114877980 A CN114877980 A CN 114877980A CN 202210431481 A CN202210431481 A CN 202210431481A CN 114877980 A CN114877980 A CN 114877980A
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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
- G01G19/021—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles having electrical weight-sensitive devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/08—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a leaf spring
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- General Physics & Mathematics (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a real-time weighing system and a real-time weighing method for a concrete tank truck, which comprise the following steps: signal receiver and exempt from to weld foil gage, bridge box, voltage amplifier, the signal transmission device that connect gradually, exempt from to weld the foil gage and be used for: converting the deformation quantity of a steel plate spring of the concrete tank car to be tested into a resistance change signal; the bridge box is used for: performing signal conditioning on the resistance change signal to obtain a voltage change signal; the voltage amplifier is used for: receiving and amplifying the voltage change signal to obtain an amplified voltage signal; the signal transmitting device is used for: receiving and sending the amplified voltage signal to a signal receiving device; the signal receiving device is used for: and converting the amplified voltage signal to obtain the load data of the concrete tank car to be detected. The invention can measure the real-time load of the concrete tank truck while avoiding the disassembly, assembly and structural modification of the concrete tank truck. In addition, the invention has the characteristics of compact structure, strong stability and higher precision.
Description
Technical Field
The invention relates to the technical field of concrete tank truck weighing, in particular to a real-time weighing system and method for a concrete tank truck.
Background
The concrete tank truck weighing system enables an operator to know the load condition of the concrete tank truck. The existing weighing system is used for weighing in a mode that a gravity sensor is installed below a riding wheel of a concrete tank truck, but the riding wheel needs to be replaced when the weighing system is installed, so that the weighing system is inconvenient, low in precision and incapable of meeting use requirements. Therefore, it is desirable to provide a real-time weighing system for concrete tanker to solve the above problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides a real-time weighing system and method for a concrete tank truck.
The technical scheme of the real-time weighing system of the concrete tank truck is as follows:
the welding-free strain gauge comprises a signal receiving device (5), and a welding-free strain gauge (1), an electric bridge box (2), a voltage amplifier (3) and a signal sending device (4) which are connected in sequence, wherein the welding-free strain gauge (1) is used for being installed at the centroid of the longest steel plate spring of a rear wheel of a concrete tank car to be tested, and the electric bridge box (2), the voltage amplifier (3) and the signal sending device (4) are all used for being arranged on the concrete tank car to be tested;
the welding-free strain gauge (1) is used for: converting the deformation quantity of the steel plate spring of the concrete tank car to be tested into a resistance change signal;
the bridge box (2) is used for: performing signal conditioning on the resistance change signal to obtain a voltage change signal;
the voltage amplifier (3) is configured to: receiving and amplifying the voltage change signal to obtain an amplified voltage signal;
the signal transmission device (4) is used for: receiving and sending the amplified voltage signal to the signal receiving device;
the signal receiving device (5) is used for: and converting the amplified voltage signal to obtain the load data of the concrete tank car to be detected.
The concrete tank truck real-time weighing system has the following beneficial effects:
the system provided by the invention can be used for measuring the real-time load of the concrete tank truck while avoiding the disassembly, assembly and structural transformation of the concrete tank truck. The system has the characteristics of compact structure, strong stability and higher precision, so the system has good market prospect.
On the basis of the scheme, the real-time weighing system of the concrete tank truck can be further improved as follows.
Further, the signal receiving apparatus (5) is specifically configured to:
and obtaining load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
Further, the signal sending device (4) is connected with the signal receiving device (5) in a wireless communication mode.
Furthermore, an epoxy resin layer is arranged on the surface of the welding-free strain gauge (1).
Furthermore, the welding-free strain gauge (1) is the welding-free strain gauge (1) with the model number BX120-50 AA.
Further, the voltage amplifier (3) adopts a voltage amplifier (3) with the model number AD 620.
The technical scheme of the real-time weighing method of the concrete tank truck is as follows:
the invention discloses a real-time weighing system of a concrete tank truck, which comprises the following steps:
the welding-free strain gauge (1) converts the deformation quantity of a steel plate spring (6) of the concrete tank car to be tested into the resistance change signal;
the bridge box (2) conditions the resistance change signal to obtain the voltage change signal;
the voltage amplifier (3) receives and amplifies the voltage change signal to obtain an amplified voltage signal;
the signal transmitting device (4) receives and transmits the amplified voltage signal to the signal receiving device (5);
and the signal receiving device (5) converts the amplified voltage signal to obtain the load data of the concrete tank car to be detected.
The concrete tank truck real-time weighing method has the following beneficial effects:
the method of the invention can avoid the disassembly and assembly and the structural modification of the concrete tank truck, and can measure the real-time load of the concrete tank truck. The invention has the characteristics of compact structure, strong stability and higher precision, so the technical scheme of the invention has good market prospect.
On the basis of the scheme, the real-time weighing method for the concrete tank truck can be further improved as follows.
Further, the signal receiving device (5) converts the amplified voltage signal to obtain the load data of the concrete tank car to be detected, and the method comprises the following steps:
and obtaining load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
Further, the signal transmitting device (4) receives and transmits the amplified voltage signal to the signal receiving device (5), including:
the signal sending device (4) receives the amplified voltage signal and sends the amplified voltage signal to the signal receiving device (5) in a wireless communication mode.
Furthermore, an epoxy resin layer is arranged on the surface of the welding-free strain gauge (1).
Drawings
FIG. 1 is a schematic structural diagram of a real-time weighing system of a concrete tanker according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an installation position of a weld-free strain gauge in a real-time weighing system of a concrete tanker according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a real-time weighing method of a concrete tank truck according to an embodiment of the invention.
Detailed Description
As shown in fig. 1, a real-time weighing system for a concrete tanker according to an embodiment of the present invention includes:
the device comprises a signal receiving device (5), a welding-free strain gauge (1), an electric bridge box (2), a voltage amplifier (3) and a signal sending device (4), wherein the welding-free strain gauge (1) is used for being installed at the centroid of the longest steel plate spring of a rear wheel of the concrete tank car to be tested, and the electric bridge box (2), the voltage amplifier (3) and the signal sending device (4) are all used for being arranged on the concrete tank car to be tested.
The welding-free strain gauge (1) is connected with the bridge box (2), the bridge box (2) is connected with the voltage amplifier (3), and the voltage amplifier (3) is connected with the signal sending device (4) through leads. The welding-free strain gauge (1) is adhered to the centroid of the longest leaf spring of the rear wheel of the concrete tank truck to be tested through 502 glue. The bridge box (2), the voltage amplifier (3) and the signal transmitting device (4) can be mounted in a box and the box is arranged on the concrete tank truck to be tested.
The welding-free strain gauge (1) is used for: and converting the deformation quantity of the steel plate spring (6) of the concrete tank car to be tested into a resistance change signal.
The steel plate spring (6) is used for acquiring the load change of the concrete tank car to be detected.
Specifically, as shown in fig. 2, when the steel plate spring (6) of the concrete tank car to be tested deforms, the welding-free strain gauge (1) converts the deformation amount of the steel plate spring (6) into a resistance change signal of the welding-free strain gauge (1), and the welding-free strain gauge (1) transmits the resistance change to the bridge box (2).
The bridge box (2) is used for: and performing signal conditioning on the resistance change signal to obtain a voltage change signal.
The bridge box (2) is used for conditioning received signals, and the bridge box (2) is a half-bridge single-arm circuit formed by four 100K omega resistors and plays a role of a conditioning circuit equivalently.
It should be noted that the process of conditioning the resistance change signal by using the bridge box (2) is a conventional means in the art, and will not be described in detail herein.
The voltage amplifier (3) is configured to: and receiving and amplifying the voltage change signal to obtain an amplified voltage signal.
The function of the voltage amplifier (3) in this embodiment is the conventional function of the voltage amplifier (3), and is not described herein in detail.
The signal transmission device (4) is used for: and receiving and sending the amplified voltage signal to the signal receiving device.
The signal receiving device (5) is used for: and converting the amplified voltage signal to obtain the load data of the concrete tank car to be detected.
The signal receiving device (5) can be any terminal equipment, such as a mobile phone, a computer and the like.
Wherein, the load data is: the weight of concrete borne by a steel plate spring (6) on the current concrete tank truck to be tested.
Preferably, the signal receiving means (5) are specifically configured to:
and obtaining load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
And the preset voltage-weight curve is obtained by performing curve fitting according to the weight values measured for multiple times and the amplified voltage signal value. Specifically, before the concrete is put into use, amplified voltage signal values corresponding to 100Kg of load added are measured respectively until the amplified voltage signal values when the concrete reaches full load are obtained, curve fitting is performed on all the data to obtain the relationship between the load weight and the measured voltage, and finally the corresponding relationship between the amplified voltage values and the concrete weight is constructed.
Preferably, the signal transmitting device (4) is connected with the signal receiving device (5) in a wireless communication mode.
Preferably, the surface of the welding-free strain gauge (1) is provided with an epoxy resin layer.
Wherein, the surface of the welding-free strain gauge (1) is coated with epoxy resin, so that the occurrence of the situations of inaccurate measurement caused by loss and the like can be reduced.
Preferably, the welding-free strain gauge (1) adopts a welding-free strain gauge (1) with the model number BX120-50 AA.
The welding-free strain gauge (1) of the embodiment adopts the following models: the resistance of the welding-free strain gage (1) of BX120-50AA is 120 omega, the sensitivity coefficient is 2.0 +/-0.01, the base length multiplied by the base width is 60.0 multiplied by 6.0mm, the grid wire material is imported constantan, the strain limit is 20000um/M, the temperature range is-20 ℃ to 80 ℃, and the insulation resistance is 10000M omega.
It should be noted that when other types of welding-free strain gauges (1) are adopted, the invention also can protect the strain gauges.
Preferably, the voltage amplifier (3) adopts a voltage amplifier (3) with the model number AD 620.
The voltage amplifier (3) is an AD620 voltage amplifier, the signal input voltage is 100uV-300MV, and the amplification factor is 1.5-1000 times.
It should be noted that when other types of voltage amplifiers (3) are used, the invention should also protect the same.
The technical scheme of this embodiment can also measure the real-time load of concrete tank car when avoiding carrying out dismouting and structural transformation to the concrete tank car. In addition, the technical scheme of the embodiment has the characteristics of compact structure, strong stability and higher precision, so that the system designed by the technical scheme of the embodiment has good market prospect.
As shown in fig. 3, the method for weighing a concrete tank truck in real time according to the embodiment of the present invention adopts a system for weighing a concrete tank truck in real time according to the embodiment of the present invention, which includes the following steps:
s1, converting the deformation quantity of the steel plate spring (6) of the concrete tank car to be tested into the resistance change signal by the welding-free strain gauge (1);
s2, the bridge box (2) conditions the resistance change signal to obtain the voltage change signal;
s3, the voltage amplifier (3) receives and amplifies the voltage change signal to obtain the amplified voltage signal;
s4, the signal sending device (4) receives and sends the amplified voltage signal to the signal receiving device (5);
and S5, converting the amplified voltage signal by the signal receiving device (5) to obtain the load data of the concrete tank car to be detected.
Preferably, the signal receiving device (5) converts the amplified voltage signal to obtain real-time load data of the concrete tank car to be detected, and the method comprises the following steps:
and obtaining the load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
Preferably, the signal transmitting device (4) receives and transmits the amplified voltage signal to the signal receiving device (5), and includes:
the signal sending device (4) receives the amplified voltage signal and sends the amplified voltage signal to the signal receiving device (5) in a wireless communication mode.
Preferably, the surface of the welding-free strain gauge (1) is provided with an epoxy resin layer.
The technical scheme of this embodiment can also measure the real-time load of concrete tank car when avoiding carrying out dismouting and structural transformation to the concrete tank car. In addition, the technical scheme of the embodiment has the characteristics of compact structure, strong stability and higher precision, so that the method designed by the technical scheme of the embodiment has good market prospect.
For the parameters and steps in the real-time weighing method for a concrete tanker according to this embodiment, reference may be made to the parameters and modules in the embodiment of the real-time weighing system for a concrete tanker, which are not described herein again.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. In addition, embodiments of the present invention are not directed to any particular programming language.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. Similarly, in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. Where the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. The real-time weighing system of the concrete tank truck is characterized by comprising a signal receiving device (5), and a welding-free strain gauge (1), an electric bridge box (2), a voltage amplifier (3) and a signal sending device (4) which are sequentially connected, wherein the welding-free strain gauge (1) is used for being installed at the centroid of the longest steel plate spring of a rear wheel of the concrete tank truck to be tested, and the electric bridge box (2), the voltage amplifier (3) and the signal sending device (4) are all used for being arranged on the concrete tank truck to be tested;
the welding-free strain gauge (1) is used for: converting the deformation quantity of a steel plate spring (6) of the concrete tank car to be tested into a resistance change signal;
the bridge box (2) is used for: performing signal conditioning on the resistance change signal to obtain a voltage change signal;
the voltage amplifier (3) is configured to: receiving and amplifying the voltage change signal to obtain an amplified voltage signal;
the signal transmission device (4) is used for: receiving and sending the amplified voltage signal to the signal receiving device;
the signal receiving device (5) is used for: and converting the amplified voltage signal to obtain the load data of the concrete tank car to be detected.
2. The concrete tanker real-time weighing system according to claim 1, wherein the signal receiving device (5) is specifically configured to:
and obtaining load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
3. The concrete tanker real-time weighing system according to claim 1, wherein the signal transmitting device (4) is connected with the signal receiving device (5) in a wireless communication manner.
4. The concrete tank truck real-time weighing system is characterized in that an epoxy resin layer is arranged on the surface of the welding-free strain gauge (1).
5. The concrete tank truck real-time weighing system according to claim 1, characterized in that the welding-free strain gauge (1) is a welding-free strain gauge (1) with model number BX120-50 AA.
6. The concrete tanker real-time weighing system according to claim 1, characterized in that the voltage amplifier (3) is a voltage amplifier (3) of type AD 620.
7. A real-time weighing method for a concrete tanker, wherein the real-time weighing system for the concrete tanker according to any one of claims 1 to 5 is adopted, the method comprising:
the welding-free strain gauge (1) converts the deformation quantity of a steel plate spring (6) of the concrete tank car to be tested into the resistance change signal;
the bridge box (2) conditions the resistance change signal to obtain the voltage change signal;
the voltage amplifier (3) receives and amplifies the voltage change signal to obtain an amplified voltage signal;
the signal transmitting device (4) receives and transmits the amplified voltage signal to the signal receiving device (5);
and the signal receiving device (5) converts the amplified voltage signal to obtain the load data of the concrete tank car to be detected.
8. The concrete tank truck real-time weighing system according to claim 7, wherein the signal receiving device (5) converts the amplified voltage signal to obtain load data of the concrete tank truck to be tested, and the system comprises:
and obtaining load data of the concrete tank car to be detected according to the amplified voltage signal and a preset voltage-weight curve.
9. The concrete tanker real-time weighing method according to claim 7, wherein the signal sending device (4) receives and sends the amplified voltage signal to the signal receiving device (5), comprising:
the signal sending device (4) receives the amplified voltage signal and sends the amplified voltage signal to the signal receiving device (5) in a wireless communication mode.
10. The real-time weighing method for the concrete tank truck as claimed in claim 7, characterized in that the surface of the welding-free strain gauge (1) is provided with an epoxy resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210431481.6A CN114877980A (en) | 2022-04-22 | 2022-04-22 | Real-time weighing system and method for concrete tank truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210431481.6A CN114877980A (en) | 2022-04-22 | 2022-04-22 | Real-time weighing system and method for concrete tank truck |
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| CN114877980A true CN114877980A (en) | 2022-08-09 |
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| CN202210431481.6A Pending CN114877980A (en) | 2022-04-22 | 2022-04-22 | Real-time weighing system and method for concrete tank truck |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859526A (en) * | 2015-06-10 | 2015-08-26 | 徐州徐工施维英机械有限公司 | Weighing device and concrete mixer |
| CN108760003A (en) * | 2018-07-27 | 2018-11-06 | 杭州网源科技有限公司 | A kind of vehicle load measuring system |
| CN111209951A (en) * | 2020-01-02 | 2020-05-29 | 深圳市汉德网络科技有限公司 | Real-time vehicle-mounted weighing method |
| CN111256576A (en) * | 2020-02-19 | 2020-06-09 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Environment-friendly structural deformation early warning device, method and system |
| CN112389450A (en) * | 2020-11-20 | 2021-02-23 | 交通运输部公路科学研究所 | Dynamic estimation method for overall vehicle mass of tank car based on plate spring deformation |
| CN213301528U (en) * | 2020-07-22 | 2021-05-28 | 中铁上海设计院集团有限公司 | Pump line stress real-time monitoring system |
-
2022
- 2022-04-22 CN CN202210431481.6A patent/CN114877980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859526A (en) * | 2015-06-10 | 2015-08-26 | 徐州徐工施维英机械有限公司 | Weighing device and concrete mixer |
| CN108760003A (en) * | 2018-07-27 | 2018-11-06 | 杭州网源科技有限公司 | A kind of vehicle load measuring system |
| CN111209951A (en) * | 2020-01-02 | 2020-05-29 | 深圳市汉德网络科技有限公司 | Real-time vehicle-mounted weighing method |
| CN111256576A (en) * | 2020-02-19 | 2020-06-09 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Environment-friendly structural deformation early warning device, method and system |
| CN213301528U (en) * | 2020-07-22 | 2021-05-28 | 中铁上海设计院集团有限公司 | Pump line stress real-time monitoring system |
| CN112389450A (en) * | 2020-11-20 | 2021-02-23 | 交通运输部公路科学研究所 | Dynamic estimation method for overall vehicle mass of tank car based on plate spring deformation |
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