CN110940406B - Electronic truck scale weighing system based on Internet of things technology and lightning protection method - Google Patents
Electronic truck scale weighing system based on Internet of things technology and lightning protection method Download PDFInfo
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- CN110940406B CN110940406B CN201911195896.2A CN201911195896A CN110940406B CN 110940406 B CN110940406 B CN 110940406B CN 201911195896 A CN201911195896 A CN 201911195896A CN 110940406 B CN110940406 B CN 110940406B
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/60—Connections between or with tubular conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention relates to an electronic truck scale weighing system and a lightning protection method based on the technology of the Internet of things, which are characterized in that: the scale comprises a scale body, a bearing sensor, a data processing device and a digital bearing display device, wherein the scale body comprises a bearing platform and a steel plate; the weighing sensor is positioned at the lower end of the scale body, the fulcrum of the weighing sensor is superposed with the stress point of the scale body, and the output end of the weighing sensor is connected with the data acquisition device; the digital bearing display device is an Internet of things digital instrument, and the input end of the Internet of things digital instrument is connected with the output end of the data acquisition device; the weight sensor detects the weight of the object on the scale body, weight information is generated and transmitted to the data processing device, and the data processing device processes the weight information and then transmits the processed weight information to the digital bearing display device for displaying. The invention overcomes the random error of analog quantity compensation, eliminates the influence of human factors on the compensation, and greatly improves the comprehensive precision and reliability of the sensor.
Description
Technical Field
The invention relates to an electronic truck scale weighing system and a lightning protection method based on the technology of the Internet of things.
Background
Truck scales, also known as loaders, are the primary weighing devices used by factories, mines, merchants, etc. for bulk goods metering. The truck scale that was common before the 80's of the twentieth century was also known as a mechanical wagon balance. In the middle of the 80 th century, along with the gradual maturity of high-precision weighing sensor technology, mechanical weighbridge is gradually replaced by electronic weighbridge with high precision, good stability and convenient operation, and although the existing weighbridge can weigh a vehicle, the existing weighbridge cannot be connected with the existing internet of things, so that corresponding data cannot be connected systematically, data cannot be effectively stored, and the automobile is driven to damage to the weighbridge due to the fact that the speed of the automobile is too high in the process of running the weighbridge.
Disclosure of Invention
In view of the above, the present invention provides an electronic truck scale weighing system based on internet of things technology to solve at least one of the above problems.
The technical scheme adopted for realizing the purpose of the invention is as follows: the utility model provides an electron truck scale weighing system based on internet of things, its characterized in that: the scale comprises a scale body, a weighing sensor, a data processing device and a digital bearing display device, wherein the scale body comprises a bearing platform and a steel plate, the bearing platform is of a three-section all-steel frame structure, the bearing platform is of a U-shaped steel beam, and the steel plate is welded on the bearing platform; the weighing sensor is positioned at the lower end of the scale body, the fulcrum of the weighing sensor is superposed with the stress point of the scale body, and the output end of the weighing sensor is connected with the data processing device; the data processing device comprises an amplifier, an 'A/D' converter, a microprocessor, a memory, an interface circuit and a digital temperature sensor; the digital bearing display device is an Internet of things digital instrument, and the input end of the Internet of things digital instrument is connected with the output end of the data processing device; the weighing sensor detects the weight of an object on the weighing body, weight information is generated and transmitted to the data processing device, and the data processing device processes the weight information and then transmits the processed weight information to the digital bearing display device for display; limiting devices are respectively arranged at two ends of the scale body and are respectively positioned at two ends of the scale body; the front end of the balance body is also provided with a braking device for limiting the speed of the automobile.
Furthermore, the limiting device comprises a collision plate, a moving plate, a motor, a rotating shaft and a motor controller; the collision plate is positioned on the end face of the balance body, and the bottom surface of the collision plate extends upwards and is provided with a cavity for connecting the rotating shaft; the movable plate is positioned at the lower end of the collision plate, and a through threaded hole is formed in the position, corresponding to the collision plate cavity, of the movable plate; the motor is positioned at the lower end of the movable plate, the output end of the motor is connected with the rotating shaft, and the input end of the motor is connected with the motor controller; the surface of the rotating shaft is provided with a thread which is matched with the threaded hole on the moving plate; and a motor forward and reverse rotation circuit is arranged in the motor controller.
Furthermore, the motor controller is also provided with a communication interface.
Furthermore, the braking device comprises a braking groove, a plurality of stepping motors, a rotating shaft, a rolling barrel, a connecting plate and a speed measuring sensor; the braking groove is positioned at the front end of the scale body and corresponds to the scale body, the width and the length of the braking groove are both larger than the length and the width of an automobile, and a plurality of spaced connecting plates are arranged on the surface of the braking groove; the plurality of stepping motors are uniformly fixed in the brake grooves; a plurality of rotating shafts are arranged, and one rotating shaft is fixedly sleeved with one stepping motor; the rolling barrels are uniformly distributed in intervals among the connecting plates, are made of rubber, are provided with through holes for connection at the axes, are fixedly connected with the rotating shaft through the through holes, and are higher than the horizontal plane of the connecting plates; the speed measuring sensor is positioned at the end part of the brake groove close to the balance body.
Furthermore, a plurality of hemispherical bulges used for increasing friction force are arranged on the surface of the rolling barrel.
Furthermore, the stepping motor and the speed measuring sensor are respectively connected with a data processing device.
Further, the Internet of things digital instrument is a D12-WP model Internet of things digital instrument.
Further, the internet of things digital instrument is also provided with a communication interface used for connecting an upper computer, and the communication interface is RS 485.
Further, the data processing device is a PC.
Further, the Internet of things digital instrument is connected with the upper computer through an Ethernet or an Internet of things system.
A lightning protection method for an electronic truck scale adopts a foundation grounding grid as system grounding, and foundation construction comprises the following steps:
firstly, tying up more than 50% of cross points of longitudinal and transverse reinforcing meshes in the foundation concrete by using 16# iron wires, and firmly welding foundation bolts and the reinforcing meshes to form the distributed grounding grid. Vertically driving four angle steels near the threading pipe, wherein the depth of the angle steels embedded into the ground is at least four meters, firmly welding the four angle steels together by using round steel or iron bars, and ensuring that the grounding resistance of the angle steels and the foundation type grounding net are firmly welded together to be less than 4 omega;
step two, the metal threading pipe penetrating the signal cable is required to be connected with a foundation grounding grid, a welding and fixing method is adopted, the metal threading pipe is filled as a grounding pile in the pound room, and the grounding resistance of the metal threading pipe is required to be less than 4 omega;
and step three, the weighing bodies of the truck scale units are grounded together, and the vicinity of each sensor is connected with a basic grounding network by a grounding cable.
The invention has the beneficial effects that:
1. has high precision and reliability
By adopting a digital error compensation mode and highly integrated electronic elements, the comprehensive compensation of performance parameters such as linearity, zero point, rated output, temperature drift, creep deformation and the like of the sensor can be realized by software, the randomness error of analog quantity compensation is overcome, the influence of human factors on the compensation is eliminated, and the comprehensive precision and reliability of the sensor are greatly improved.
2. Good consistency and interchangeability
The output consistency error of a general analog sensor is within 0.1 percent, the output consistency error of a digital sensor is within 0.02 percent or even higher, and the characteristic parameters of the sensors can be completely the same in batch production, so the digital sensor has good interchangeability in application, and the metering performance of the digital sensor is basically not influenced when the digital sensor is replaced on a III-level scale.
3. Has high stability and strong anti-interference capability
The integrated A/D conversion circuit, the digital signal transmission and digital filtering technology are adopted, the signal transmission distance of the sensor is greatly increased to 1200 m, the anti-interference capability is obviously enhanced, the transmission distance of analog signals in the digital sensor is extremely short, and meanwhile, the sensor shell (elastomer) is a good shielding cover, so that the advantages of the anti-interference capability are determined by the two characteristics, and the stability of the sensor is improved to a great extent.
4. Has self-recognition function and is convenient for fault diagnosis
Because the digital sensor has the functions of automatic data acquisition, preprocessing, storage and memory and has a unique mark, the state of each sensor can be respectively checked after a plurality of sensors are connected in parallel to form a balance, and the fault diagnosis is convenient.
5. Has higher flexibility of the group scales
The system adopts a standard digital communication interface (RS485), can be directly connected with an upper computer for work, and can also be connected with a standard industrial control bus, and the system is convenient and flexible to assemble.
6. The security is good, has the function of preventing cheating: the remote controller can be effectively prevented from cheating, and once the remote controller is found, an error alarm can be automatically adopted.
7. Has the function of limiting speed
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partial cross-sectional view of a stopper.
Fig. 3 is a schematic diagram of a connection plate structure.
Fig. 4 is a schematic structural view of the braking device.
In the figure, 1-automobile, 2-weighing body, 3-digital bearing display device, 4-data processing device, 5-weighing sensor, 6-collision plate, 7-rotating shaft, 8-moving plate, 9-motor, 10-braking groove, 11-connecting plate, 12-stepping motor and 13-rotating shaft.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Fig. 1, fig. 2, fig. 3 and fig. 4 schematically show structures of an electronic truck scale weighing system and a lightning protection method based on the internet of things technology according to an embodiment of the invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, an electronic truck scale weighing system based on internet of things technology is characterized in that: the scale comprises a scale body, a weighing sensor, a data processing device and a digital bearing display device, wherein the scale body comprises a bearing platform and a steel plate, the bearing platform is of a three-section all-steel frame structure, the bearing platform is of a U-shaped steel beam, and the steel plate is welded on the bearing platform; the weighing sensor is positioned at the lower end of the scale body, the fulcrum of the weighing sensor is superposed with the stress point of the scale body, and the output end of the weighing sensor is connected with the data processing device; the data processing device comprises an amplifier, an 'A/D' converter, a microprocessor, a memory, an interface circuit and a digital temperature sensor; the digital bearing display device is an Internet of things digital instrument, and the input end of the Internet of things digital instrument is connected with the output end of the data processing device; the weighing sensor detects the weight of an object on the weighing body, weight information is generated and transmitted to the data processing device, and the data processing device processes the weight information and then transmits the processed weight information to the digital bearing display device for display; limiting devices are respectively arranged at two ends of the scale body and are respectively positioned at two ends of the scale body; the front end of the balance body is also provided with a braking device for limiting the speed of the automobile.
As shown in fig. 1, 2, 3 and 4, the scale body is used for carrying a car or other objects, a load cell is connected to the lower end of the scale body, and when a car or other objects are on the scale body, the load cell is stressed to generate a sensing signal and transmit the sensing signal to a data processing device.
As shown in fig. 1, 2, 3 and 4, the data processing device receives the sensing signal, processes the sensing signal and outputs corresponding weight information to the digital bearing display device for displaying, so that a worker can clearly know the weight of the automobile or other objects on the weighing body according to the display condition of the digital bearing display device.
As shown in fig. 1, 2, 3 and 4, the scale body is a steel plate of type Q235, and the table top of the scale body is not provided with holes, so that the weak points of poor local strength and concentrated structural stress caused by the holes are avoided.
As shown in fig. 1, 2, 3 and 4, the weighing sensor is a QS-D30t type weighing sensor, which has high stability and repeatability, can stabilize the weighing platform in the shortest time, has good impact resistance and lateral force resistance, and is convenient to install and debug.
As shown in fig. 1, 2, 3 and 4, the digital load-bearing display device is a D12-WP internet of things digital instrument; the Internet of things digital instrument is also provided with a communication interface for connecting an upper computer, and the communication interface is RS 485; the Internet of things digital instrument is connected with the upper computer through an Ethernet or an Internet of things system, so that data information detected by the system is transmitted to the upper computer to be stored or printed.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, two ends of the scale body are respectively provided with a limiting device, and the limiting devices are respectively located at two ends of the scale body.
As shown in fig. 1, 2, 3 and 4, the limiting device comprises a striking plate, a moving plate, a motor, a rotating shaft and a motor controller; the collision plate is positioned on the end face of the balance body, and the bottom surface of the collision plate extends upwards and is provided with a cavity for connecting the rotating shaft; the movable plate is positioned at the lower end of the collision plate, and a through threaded hole is formed in the position, corresponding to the collision plate cavity, of the movable plate; the motor is positioned at the lower end of the movable plate, the output end of the motor is connected with the rotating shaft, and the input end of the motor is connected with the motor controller; the surface of the rotating shaft is provided with a thread which is matched with the threaded hole on the moving plate; and a motor forward and reverse rotation circuit is arranged in the motor controller.
As shown in fig. 1, 2, 3 and 4, the motor controller is further provided with a communication interface so as to be connected with a data processing device and a digital load-bearing display device in a communication way.
As shown in fig. 1, 2, 3, and 4, the motor controller is configured to control forward and reverse rotation of the motor, and when the striking plate needs to be lifted, the motor controller controls the motor to rotate forward, so that the motor is powered to rotate, the motor rotates to rotate the rotating shaft, and the rotating shaft is connected to the threaded hole in the moving plate in a matching manner, so that the rotating shaft rotates to drive the moving plate to move upward, and the moving plate moves to drive the striking plate on the moving plate to lift; when the striking plate needs to move downwards, the motor controller controls the motor to rotate reversely, so that the motor drives the rotating shaft to rotate reversely, the rotating shaft drives the moving plate to move downwards, and the moving plate drives the striking plate to move downwards.
As shown in fig. 1, 2, 3 and 4, the front end of the scale body is further provided with a braking device for limiting the speed of the automobile, and the braking device comprises a braking groove, a plurality of stepping motors, a rotating shaft, a rolling barrel, a connecting plate and a speed measuring sensor; the braking groove is positioned at the front end of the scale body and corresponds to the scale body, the width and the length of the braking groove are both larger than the length and the width of an automobile, and a plurality of spaced connecting plates are arranged on the surface of the braking groove; the plurality of stepping motors are uniformly fixed in the brake grooves; a plurality of rotating shafts are arranged, and one rotating shaft is fixedly sleeved with one stepping motor; the rolling barrels are uniformly distributed in the intervals among the connecting plates, are made of rubber, are provided with through holes for connecting the rotating shafts at the axes, are fixedly connected with the rotating shafts through the through holes, and are higher than the horizontal planes of the connecting plates; the speed measuring sensor is positioned at the end part of the brake groove close to the balance body.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the step motor drives the rolling barrel to rotate counterclockwise when rotating counterclockwise, the rotation of the rolling barrel drives the friction between the rolling barrel and the automobile wheel, and the wheel rotates clockwise and the rolling barrel rotates counterclockwise, so as to brake the automobile wheel and reduce the running speed of the wheel, and the rolling barrel is made of rubber, so that the friction between the rolling barrel and the automobile wheel is increased, and further the friction between the automobile wheel and the rolling barrel is increased, and the effect of braking achieved by the rolling barrel is better.
As shown in fig. 1, 2, 3 and 4, the surface of the rolling barrel is provided with a plurality of hemispherical protrusions for increasing friction force, the stepping motor and the speed measuring sensor are respectively connected to a data processing device, and a speed standard value is arranged in the data processing device; the speed sensor detects the speed that the car went and generates speed signal transmission to data processing device, data processing device receive speed signal to compare speed signal and speed standard value, when the speed that the car went was greater than speed standard value, data processing device control step motor circuit switched on, make step motor anticlockwise rotation, thereby drive the rotation of rolling bucket and brake the car, reduced the speed of going of car, avoided the car speed of going too fast and led to the fact the damage to the truck scale.
As shown in fig. 1, 2, 3 and 4, the motor controller may be a GW3230S type controller or a CXWD3262 type controller.
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, a lightning protection method for an electronic truck scale adopts a foundation grounding network as system grounding, and the foundation construction includes:
firstly, tying up more than 50% of cross points of longitudinal and transverse reinforcing meshes in the foundation concrete by using 16# iron wires, and firmly welding foundation bolts and the reinforcing meshes to form the distributed grounding grid. Vertically driving four angle steels near the threading pipe, wherein the depth of the angle steels embedded into the ground is at least four meters, firmly welding the four angle steels together by using round steel or iron bars, and ensuring that the grounding resistance of the angle steels and the foundation type grounding net are firmly welded together to be less than 4 omega;
step two, the metal threading pipe penetrating the signal cable is required to be connected with a foundation grounding grid, a welding and fixing method is adopted, the metal threading pipe is filled as a grounding pile in the pound room, and the grounding resistance of the metal threading pipe is required to be less than 4 omega;
and step three, the weighing bodies of the truck scale units are grounded together, and the vicinity of each sensor is connected with a basic grounding network by a grounding cable.
It is worth mentioning that: in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; mechanical connection is possible, and a person of ordinary skill in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an electron truck scale weighing system based on internet of things, its characterized in that: the scale comprises a scale body, a weighing sensor, a data processing device and a digital bearing display device, wherein the scale body comprises a bearing platform and a steel plate, the bearing platform is of a three-section all-steel frame structure, the bearing platform is of a U-shaped steel beam, and the steel plate is welded on the bearing platform; the weighing sensor is positioned at the lower end of the scale body, the fulcrum of the weighing sensor is superposed with the stress point of the scale body, and the output end of the weighing sensor is connected with the data processing device; the data processing device comprises an amplifier, an 'A/D' converter, a microprocessor, a memory, an interface circuit and a digital temperature sensor; the digital bearing display device is an Internet of things digital instrument, and the input end of the Internet of things digital instrument is connected with the output end of the data processing device; the weighing sensor detects the weight of an object on the weighing body, weight information is generated and transmitted to the data processing device, and the data processing device processes the weight information and then transmits the processed weight information to the digital bearing display device for display; limiting devices are respectively arranged at two ends of the scale body and are respectively positioned at two ends of the scale body; the front end of the scale body is also provided with a braking device for limiting the speed of the automobile, and the braking device comprises a braking groove, a plurality of stepping motors, a rotating shaft, a rolling barrel, a connecting plate and a speed measuring sensor; the braking groove is positioned at the front end of the scale body and corresponds to the scale body, the width and the length of the braking groove are both larger than the length and the width of an automobile, and a plurality of spaced connecting plates are arranged on the surface of the braking groove; the plurality of stepping motors are uniformly fixed in the brake grooves; a plurality of rotating shafts are arranged, and one rotating shaft is fixedly sleeved with one stepping motor; the rolling barrels are uniformly distributed in intervals among the connecting plates, are made of rubber, are provided with through holes for connection at the axes, are fixedly connected with the rotating shaft through the through holes, and are higher than the horizontal plane of the connecting plates; the speed measuring sensor is positioned at the end part of the brake groove close to the balance body.
2. The electronic truck scale weighing system based on the technology of the internet of things of claim 1, characterized in that: the limiting device comprises a collision plate, a moving plate, a motor, a rotating shaft and a motor controller; the collision plate is positioned on the end face of the balance body, and the bottom surface of the collision plate extends upwards and is provided with a cavity for connecting the rotating shaft; the movable plate is positioned at the lower end of the collision plate, and a through threaded hole is formed in the position, corresponding to the collision plate cavity, of the movable plate; the motor is positioned at the lower end of the movable plate, the output end of the motor is connected with the rotating shaft, and the input end of the motor is connected with the motor controller; the surface of the rotating shaft is provided with a thread which is matched with the threaded hole on the moving plate; and a motor forward and reverse rotation circuit is arranged in the motor controller.
3. The electronic truck scale weighing system based on the technology of the internet of things of claim 2, characterized in that: the motor controller is also provided with a communication interface.
4. The electronic truck scale weighing system based on the technology of the internet of things of claim 1, characterized in that: the surface of the rolling barrel is provided with a plurality of hemispherical bulges for increasing friction force; the stepping motor and the speed measuring sensor are respectively connected with the data processing device; the data processing device is a PC.
5. The electronic truck scale weighing system based on the technology of the internet of things of claim 1, characterized in that: the Internet of things digital instrument is a D12-WP model Internet of things digital instrument.
6. The electronic truck scale weighing system based on the technology of the internet of things of claim 5, characterized in that: the Internet of things digital instrument is also provided with a communication interface used for connecting an upper computer, and the communication interface is RS 485.
7. The electronic truck scale weighing system based on the technology of the internet of things of claim 6, characterized in that: the Internet of things digital instrument is connected with the upper computer through an Ethernet or an Internet of things system.
8. The lightning protection method of the electronic truck scale weighing system based on the internet of things technology according to claim 1, wherein a foundation grounding grid is adopted as system grounding, and foundation construction comprises the following steps:
firstly, tying up more than 50% of cross points of longitudinal and transverse reinforcing steel bar meshes in foundation concrete by using 16# iron wires, firmly welding foundation bolts and the reinforcing steel bar meshes to form a distributed grounding grid, vertically driving four angle steels near a threading pipe, burying the angle steels to the underground depth of at least four meters, firmly welding the four angle steels together by using round steel or iron bars, and simultaneously ensuring that the grounding resistance of the angle steels and the foundation type grounding grid are firmly welded together is less than 4 omega;
step two, the metal threading pipe penetrating the signal cable is required to be connected with a foundation grounding grid, a welding and fixing method is adopted, the metal threading pipe is filled as a grounding pile in the pound room, and the grounding resistance of the metal threading pipe is required to be less than 4 omega;
and step three, the weighing bodies of the truck scale units are grounded together, and the vicinity of each sensor is connected with a basic grounding network by a grounding cable.
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| CN201911195896.2A CN110940406B (en) | 2019-11-29 | 2019-11-29 | Electronic truck scale weighing system based on Internet of things technology and lightning protection method |
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| CN110940406B true CN110940406B (en) | 2021-04-16 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229079Y (en) * | 1994-10-26 | 1996-06-12 | 张仲麟 | Moving automotive axle weight and brake testing platform |
| CN101109668A (en) * | 2006-07-19 | 2008-01-23 | 斯奈帮设备有限公司 | Roller brake testing dynamometer |
| CN101710012A (en) * | 2009-11-02 | 2010-05-19 | 浙江大学 | Motor vehicle axle load testing device integrated with brake platform |
| CN102061672A (en) * | 2010-11-19 | 2011-05-18 | 绍兴文理学院 | Weight-limit intelligent roadblock device based on self weight of vehicle |
| CN202793551U (en) * | 2012-07-12 | 2013-03-13 | 重庆道成电子有限公司 | Digital electronic truck scale detection device |
| CN202814710U (en) * | 2012-07-13 | 2013-03-20 | 葛在 | Moving flat plate type brake performance detection table |
| CN103292881A (en) * | 2012-02-23 | 2013-09-11 | 刘素华 | Mobile car automatic loading and weighing system |
| CN104631363A (en) * | 2015-01-28 | 2015-05-20 | 绍兴文理学院 | Intelligent roadblock device having warning function and detection method thereof |
| CN104864953A (en) * | 2014-02-24 | 2015-08-26 | 山西太钢不锈钢股份有限公司 | Lightening-proof method of electronic weighing instrument |
| CN206155815U (en) * | 2016-11-02 | 2017-05-10 | 张文渊 | Aircraft jato unit |
| CN206248189U (en) * | 2016-12-06 | 2017-06-13 | 东莞市科力达衡器有限公司 | It is anti-to rush a pound electronic vehicle weighing apparatus |
| CN107103763A (en) * | 2017-05-24 | 2017-08-29 | 陈婷 | A kind of road overload control device |
| CN207763794U (en) * | 2017-11-23 | 2018-08-24 | 郑州新益德机电设备有限公司 | A kind of truck scale tank car charging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485191Y (en) * | 2001-06-27 | 2002-04-10 | 国营中原电测仪器厂 | Automotive brake performance testing table |
| US7687727B2 (en) * | 2007-09-13 | 2010-03-30 | Raf Technology, Inc. | Weigh on the fly |
-
2019
- 2019-11-29 CN CN201911195896.2A patent/CN110940406B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229079Y (en) * | 1994-10-26 | 1996-06-12 | 张仲麟 | Moving automotive axle weight and brake testing platform |
| CN101109668A (en) * | 2006-07-19 | 2008-01-23 | 斯奈帮设备有限公司 | Roller brake testing dynamometer |
| CN101710012A (en) * | 2009-11-02 | 2010-05-19 | 浙江大学 | Motor vehicle axle load testing device integrated with brake platform |
| CN102061672A (en) * | 2010-11-19 | 2011-05-18 | 绍兴文理学院 | Weight-limit intelligent roadblock device based on self weight of vehicle |
| CN103292881A (en) * | 2012-02-23 | 2013-09-11 | 刘素华 | Mobile car automatic loading and weighing system |
| CN202793551U (en) * | 2012-07-12 | 2013-03-13 | 重庆道成电子有限公司 | Digital electronic truck scale detection device |
| CN202814710U (en) * | 2012-07-13 | 2013-03-20 | 葛在 | Moving flat plate type brake performance detection table |
| CN104864953A (en) * | 2014-02-24 | 2015-08-26 | 山西太钢不锈钢股份有限公司 | Lightening-proof method of electronic weighing instrument |
| CN104631363A (en) * | 2015-01-28 | 2015-05-20 | 绍兴文理学院 | Intelligent roadblock device having warning function and detection method thereof |
| CN206155815U (en) * | 2016-11-02 | 2017-05-10 | 张文渊 | Aircraft jato unit |
| CN206248189U (en) * | 2016-12-06 | 2017-06-13 | 东莞市科力达衡器有限公司 | It is anti-to rush a pound electronic vehicle weighing apparatus |
| CN107103763A (en) * | 2017-05-24 | 2017-08-29 | 陈婷 | A kind of road overload control device |
| CN207763794U (en) * | 2017-11-23 | 2018-08-24 | 郑州新益德机电设备有限公司 | A kind of truck scale tank car charging system |
Non-Patent Citations (1)
| Title |
|---|
| 浅谈电子汽车衡如何防雷击;戚路常;《衡器》;20140315(第3期);第50-51页 * |
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