CN108168669B - Weighing device for goods of truck - Google Patents
Weighing device for goods of truck Download PDFInfo
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- CN108168669B CN108168669B CN201810145521.4A CN201810145521A CN108168669B CN 108168669 B CN108168669 B CN 108168669B CN 201810145521 A CN201810145521 A CN 201810145521A CN 108168669 B CN108168669 B CN 108168669B
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- 238000005303 weighing Methods 0.000 title claims abstract description 75
- 230000006698 induction Effects 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
Abstract
The invention discloses a weighing device for goods of a truck, which comprises at least one weighing assembly and a processor, wherein the weighing assembly comprises a weighing sensor (2), an elastic element (3), a bearing plate (4) and a bearing frame (7), the elastic element (3) is borne between the bearing plate (4) and the bearing frame (7), the weighing sensor (2) comprises an induction part (2.1), a measuring part (2.2) and a measuring circuit, the induction part (2.1) is relatively fixed on the bearing plate (4), the measuring part (2.2) is relatively fixed on the bearing frame (7), and the longitudinal displacement of the bearing plate (4) drives the induction part (2.1) to generate relative displacement relative to the measuring part (2.2); the signal output end of the measuring circuit is connected with the sampling signal input end of the processor. The invention directly installs the weighing sensor on the movable base, and the weighing sensor is directly placed under the goods in the vehicle when needed, can be directly taken away after being used up, thereby avoiding the assembly and disassembly work and the cost of the assembly and disassembly process, having simple structure and being capable of realizing remote monitoring.
Description
Technical Field
The invention relates to the field of weighing, in particular to a weighing device for goods of a truck.
Background
In the transportation process of goods of a truck, the goods of a cargo owner are always lost due to vibration or theft and the like, so that the goods need to be detected timely, the existing goods weighing method mainly comprises the steps of installing an angle sensor on a suspension of the truck, and weighing and measuring the goods by a carriage weight method, wherein the angle sensor is difficult to install and remove. Other existing load cells are expensive to install and disassemble in a repair shop, and because trucks are temporarily employed, the load cells need to be reinstalled and disassembled every time they are used, resulting in a high cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a weighing device for goods of a truck.
The aim of the invention is realized by the following technical scheme: the weighing device for goods of the truck comprises at least one weighing assembly and a processor, wherein the weighing assembly comprises a weighing sensor, an elastic element, a bearing plate and a bearing frame, the elastic element is borne between the bearing plate and the bearing frame, the top of the elastic element is connected with the bearing plate, the bottom of the elastic element is connected with the bearing frame, the weighing sensor comprises an induction part, a measuring part and a measuring circuit, the induction part is relatively fixed on the bearing plate, the measuring part is relatively fixed on the bearing frame, and the longitudinal displacement of the bearing plate drives the induction part to generate relative displacement relative to the measuring part; the signal output end of the measuring circuit is connected with the sampling signal input end of the processor.
The weighing device of the goods of the truck further comprises a quick-release terminal board, an AD converter, a server and a client;
the quick-release terminal board consists of a terminal and a base matched and connected with the terminal, the data input end of the terminal is connected with the measuring circuit, the data output end of the terminal is connected with the processor through the AD converter, and the processor is connected with the server through the communication network;
the client comprises any one or a combination of a plurality of vehicle-mounted mobile terminals, management mobile terminals and monitoring computers, and the client is in communication connection with the server.
The weighing device of the goods of the truck further comprises an alarm, and an alarm signal input end of the alarm is connected with the processor.
The terminal is provided with a terminal buckling part, a mounting groove is formed in the base, and a base buckling part matched with the terminal buckling part is arranged in the mounting groove.
The weighing device of the goods of the truck further comprises a measuring cover plate, and the top of the measuring cover plate is hinged with the bearing plate.
The weighing device for the goods of the truck further comprises rollers, the rollers are arranged on steps on two sides of the bearing frame, and the measuring cover plate is supported on the rollers.
The weighing device of the goods of the truck further comprises a shell, the shell is coated outside the bearing frame, and an opening matched with the opening of the measuring cover plate which is spanned on the bearing frame is formed in the shell.
The weighing assembly for the goods of the truck further comprises a guiding device, wherein the guiding device comprises a guiding cylinder and a push rod which is matched with the gap of the guiding cylinder, one guiding device is arranged on the bearing frame, and the other guiding device is arranged on the bearing plate.
The weighing sensor is a potentiometer type resistance sensor, the sensing part is a brush of the potentiometer type resistance sensor, the measuring part is a resistance element of the potentiometer type resistance sensor, one end of the measuring circuit is connected with the brush, and the other end of the measuring circuit is connected with the resistance element.
The weighing sensor is a capacitive sensor, the sensing part is a first polar plate of the capacitive sensor, the measuring part is a second polar plate of the capacitive sensor, one end of the measuring circuit is connected with the first polar plate, and the other end of the measuring circuit is connected with the second polar plate.
The beneficial effects of the invention are as follows:
1) The weighing sensor is directly arranged on the movable base, and is directly placed below cargoes in a carriage when needed, so that the cargoes can be directly taken away after being used up, the cost of the installation and disassembly work and the assembly and disassembly process is saved, and the weighing sensor is simple in structure and high in practicability.
2) The elastic element is connected with the bearing frame, the whole body consisting of the measuring cover plate, the elastic element and the weighing plate can be pulled out upwards from the shell, sundries falling into the shell can be conveniently poured, and meanwhile, structural replacement can be realized when the elastic element is timely replaced or the type of the elastic element needs to be changed due to creep of the elastic element, so that cargoes with different weights can be conveniently measured, and representative data can be obtained.
3) The ejector rod is sleeved in the guide cylinder, so that the bearing plate is forced to move only in the vertical direction, the situation that the weighing assembly is deflected to the side due to extrusion of side cargoes is avoided, the measurement accuracy is improved, and the difficulty and time in the aspects of field installation, maintenance, adjustment and the like can be greatly reduced.
4) The leveling device can effectively solve the measurement error caused by uneven surface of the bottom of the carriage due to the fact that goods are born by the truck throughout the year, so that more accurate data can be obtained.
5) The terminal and the base can be connected through the clamp and the structure, so that the stress between the terminal and the base caused by riveting or thermal welding is eliminated, the terminal and the base are more firmly assembled, the service life of the quick-release terminal board is prolonged, and on the other hand, the terminal and the base can be automatically assembled through the fixed fit connection of the terminal and the base when the terminal is inserted into the mounting groove of the base, additional assembly equipment is not needed, the assembly process is effectively simplified, and the labor and the cost are saved.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic diagram of a weighing assembly according to the present invention;
FIG. 3 is an enlarged view of the load cell of FIG. 2 as a potentiometer-type resistive sensor;
FIG. 4 is an enlarged view of the load cell of FIG. 2 as a capacitive sensor;
FIG. 5 is a schematic view of the position structure of the leveling device of the present invention;
fig. 6 is a schematic view of the structure of the terminal plate of the present invention;
FIG. 7 is a schematic view of a terminal according to the present invention;
FIG. 8 is a schematic view of the structure of the base of the present invention;
in the figure, 1-measuring cover plate, 2-weighing sensor, 2.1-sensing part, 2.2-measuring part, 3-elastic element, 4-bearing plate, 5-guiding device, 5.1-guiding cylinder, 5.2-ejector rod, 6-base, 7-bearing frame, 8-roller, 9-shell, 10-level, 11-leveling screw, 12-terminal board, 13-terminal, 13.1-terminal buckle part, 14-base, 14.1-mounting groove, 14.2-base buckle part, 14.3-opening, 15-AD converter, 16-processor, 17-server, 18-client, 19-alarm.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a weighing device for freight car cargo comprises at least one weighing assembly comprising a load cell 2, an elastic element 3, a load bearing plate 4 and a load bearing frame 7, and a processor 16.
As shown in fig. 2, the elastic element 3 is carried between the bearing plate 4 and the bearing frame 7, the top of the elastic element 3 is connected with the bearing plate 4, the bottom is connected with the bearing frame 7, preferably, the top of the elastic element 3 is detachably connected with the bearing plate 4, the bottom is detachably connected with the bearing frame 7, so that the elastic element is convenient to detach and overhaul, and meanwhile, the elastic element 3 is convenient to replace when aged, so as to keep the high measurement precision of the assembly.
According to the fatigue aging curve of the elastic element 3 with the selected model, an aging compensation module can be additionally arranged in an analysis processing unit of the measuring circuit and used for compensating the measurement result according to the fatigue aging curve of the elastic element 3, so that the full-time measurement accuracy of the weighing assembly is improved.
The elastic element 3 is composed of one or more springs, when the elastic element 3 is a spring, the axis of the spring is overlapped with the gravity center of the bearing plate 4, the load cell 2 can be installed in the center of the spring in a clearance matching way, when the elastic element 3 is a plurality of springs, the springs are uniformly arranged around the gravity center of the bearing plate 4, the load cell 2 can be installed among the springs, and the elastic element 3 can feel deformation and simultaneously avoid damage to the load cell 2 inside.
The weighing sensor 2 comprises an induction part 2.1, a measuring part 2.2 and a measuring circuit, wherein the induction part 2.1 is relatively fixed on the bearing plate 4, the measuring part 2.2 is relatively fixed on the bearing frame 7, and the longitudinal displacement of the bearing plate 4 drives the induction part 2.1 to generate relative displacement relative to the measuring part 2.2; the signal output of the measurement circuit is connected to a sampling signal input of the processor 16.
As shown in fig. 3, the load cell 2 may be a resistive sensor or a capacitive sensor, and the resistive sensor may be a potentiometer-type resistive sensor or a strain gauge-type resistive sensor.
When the weighing sensor 2 is a potentiometer type resistance sensor, the sensing part 2.1 is a brush of the potentiometer type resistance sensor, the measuring part 2.2 is a resistance element of the potentiometer type resistance sensor, one end of the measuring circuit is connected with the brush, and the other end is connected with the resistance element. The potentiometer type sensor has the advantages of simple structure, small volume, light weight, low price, stable performance, low requirement on environmental conditions, larger output signal, no need of amplification generally, easy realization of conversion of functional relation, and linear conversion between displacement (measured) and resistance can be realized by moving a contact of an electric brush on a resistance element and changing the resistance value between the contact and the resistance element when the measured value changes.
When the resistance type sensor is a strain gauge type resistance sensor, the resistance strain effect (the resistance value of the wire changes when the wire is deformed due to the action of force along the axis direction) is utilized to perform measurement, and as the metal body has a certain resistance, the same material is thinner or thinner, the resistance value is larger, and when external force is applied, the metal becomes thinner and longer, and the resistance value is increased; if the thickness is thickened and shortened, the resistance value is reduced, if a metal resistor is arranged on an object which generates the strain, when the object stretches, the metal body stretches according to a certain proportion, so that the resistance value generates corresponding change, the resistance sensor has high precision, wide measuring range and long service life, can work under severe conditions, and is easy to realize miniaturization, integration and variety diversification.
As another embodiment, as shown in fig. 4, when the weighing sensor 2 is a capacitive sensor, the sensing portion 2.1 is a first electrode plate of the capacitive sensor, the measuring portion 2.2 is a second electrode plate of the capacitive sensor, one end of the measuring circuit is connected to the first electrode plate, and the other end is connected to the second electrode plate.
The capacitive sensor is a conversion device for converting a measured physical quantity or mechanical quantity into a capacitance change by using various types of capacitors as sensing elements, and is actually a capacitor with variable parameters. The weighing assembly adopts a parallel plate type capacitor as a sensing element, and according to C=epsilon A/d, when the dielectric constant epsilon between the polar plate area A and the polar plate is unchanged, the capacitance C is inversely proportional to the distance d between the polar plates, so that the weight of goods can be reflected through the change of the capacitance C.
The measuring circuits of the resistance value and the capacitance are all in the prior art, and are not described herein.
A weighing module of freight train goods still include and measure apron 1, the top of measuring apron 1 with bearing plate 4 articulates, a weighing module of freight train goods still include roller 8, roller 8 is located on the step 7.1 of bearing frame 7 both sides, it is preferable that measuring apron 1 bearing is on roller 8, the both ends of roller 8 are equipped with the arch, smooth roller 8 can reduce the friction between measuring apron 1 and the bearing frame 7, the protruding effect that the limiting measuring apron 1 is not so far left and right sliding of its both ends for measuring apron 1 can only move in the direction of motion with bearing plate 4.
A weighing module of freight train goods still include shell 9, shell 9 cladding is outside bearing frame 7, be equipped with on the shell 9 with stride the open assorted opening of measuring apron 1 of locating on the bearing frame 7, because the bottom of elastic component 3, weighing sensor 2's measuring part 2.2 all can dismantle with bearing frame 7 and be connected, then the whole that measuring apron 1, elastic component 3 and weighing plate 4 constitute can upwards be taken out, conveniently empty the debris that falls into shell 9, simultaneously, when changing or need changing the kind of elastic component 3 in good time owing to the creep of elastic component 3 self, can realize the structure replacement to be convenient for measure the goods of different weights and obtain representative data.
A weighing assembly of freight train goods still include base 6, base 6 is located bearing frame 7 bottom, preferably, bearing frame 7 is solid bearing frame, does benefit to and bears the weight of goods, guarantees the integrality of whole weighing assembly.
The weighing assembly of the truck goods further comprises a guide device 5, the guide device 5 comprises a guide cylinder 5.1 and a push rod 5.2 which is in clearance fit with the guide cylinder 5.1, one is arranged on the bearing frame 7, the other is arranged on the bearing plate 4, then the push rod 5.2 is sleeved in the guide cylinder 5.1, the bearing plate 4 is forced to move in the vertical direction only, the situation that the weighing assembly is deflected to the side due to the extrusion of the side goods is avoided, and the difficulty and time in the aspects of field installation, maintenance, adjustment and the like can be greatly reduced.
As shown in fig. 5, the base 6 is provided with a leveling device, the leveling device includes a level 10 and at least three leveling screws 11, the level 10 is disposed above the base 6, the leveling screws 11 are disposed below the base 6 and in contact with the carriage, since the truck carries the cargo throughout the year, the bottom surface of the carriage is generally uneven, if the base 6 cannot be horizontally placed, on one hand, the gravity of the actual cargo should be equal to the measured value arccosθ, and because the inclination included angle cannot be determined, an uncontrollable error of the measurement result will result; on the other hand, as the inclination angle increases, the friction between the guide cylinder 5.1 and the ejector rod 5.2 will increase, which will also reduce the measurement result to a great extent, so that the weighing assembly should be placed in a relatively horizontal position for measurement in order to obtain more accurate data, the level gauge 10 is used to detect whether the base 6 is in the horizontal position, and if not, the desired position is reached by adjusting the height of the leveling screw 11.
As shown in fig. 1, the number of the weighing components is three or more, each weighing component contains one weighing sensor 2, the signal output end of each weighing sensor 2 is connected with the quick-release terminal board 12, and data with smaller standard weight error can be obtained while saving cost.
The weighing device of the truck goods further comprises a quick-release terminal board 12, an AD converter 15, a server 17 and a client 18.
The quick-release terminal board 12 is composed of a terminal 13 and a base 14 which is matched and connected with the terminal 13, a data input end of the terminal 13 is connected with a measuring circuit, a data output end of the terminal 13 is connected with the processor 16 through an AD converter 15, the processor 16 is connected with a server 17 through a communication network, specifically, an analog signal input end of the AD converter 15 is connected with a data output end of the terminal 13, a digital signal output end is connected with the processor 16, the number of the AD converters 15 is the same as that of the weighing sensor 2 and corresponds to that of the weighing sensor one by one, and the AD converter 15 converts multipath analog data from the terminal 13 into digital data respectively and then transmits the digital data to the processor 16 for summation of the data, so that final weight data of goods are obtained.
The quick-release terminal board 12 solves the problems of differentiation and complexity of wiring between the weighing sensor 2 and the processor 16 in a jumper-on-board mode, and the signal transmission and the power supply are skillfully and organically fused together, only the jumper-on-board of the quick-release terminal board 12 is required to be changed, the line nodes are reduced, and the indication is clear at a glance, so that the quick-release terminal board is attractive and quick.
As shown in fig. 6, 7 and 8, the terminal 13 is provided with a terminal locking portion 13.1, the base 14 is provided with a mounting groove 14.1, and the mounting groove 14.1 is provided with a base locking portion 14.2 matched with the terminal locking portion 13.1.
The side of the base 14 is provided with an opening 14.3, the mounting groove 14.1 is led to the opening 14.3, in the assembling process, the terminal 13 is inserted into the mounting groove 14.1 through the opening 14.3, the connection work of the terminal 13 and the base 14 can be completed through the card and the structure, stress between the terminal 13 and the base 14 caused by riveting or thermal welding is eliminated, so that the terminal 13 and the base 14 can obtain a more stable assembling structure, the service life of the quick-release terminal board 12 is prolonged, and on the other hand, the assembling of the quick-release terminal board 12 can be completed by simply inserting the terminal 13 into the mounting groove 14.1 of the base 14, the fixed matching connection of the terminal 13 and the base 14 can be automatically completed in the inserting process, additional assembling equipment is not needed, the assembling process is effectively simplified, and the labor force and the cost are saved.
The client 18 comprises any one or a combination of a vehicle-mounted mobile terminal, a management mobile terminal and a monitoring computer, the client 18 is in communication connection with the server 17, the server 17 can receive a request sent by the client 18 and can send data to the client 18, and the client 18 can send the data and make a request to the server 17. The form of the client 18 may be selected to meet the needs of remote monitoring, depending on the needs of the application.
The weighing device for the goods of the truck further comprises an alarm 19, and an alarm signal input end of the alarm 19 is connected with the processor 16.
The whole monitoring process is: when the weighing sensor 2 transmits the sampling signal to the processor 16, the processor 16 judges whether the signal is in a normal state, if not, an alarm signal is sent to the alarm 19, and meanwhile, the server 17 sends information to the client 18, so that operators are reminded to take corresponding measures to protect goods.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (7)
1. A weighing device of freight train goods, its characterized in that: the weighing assembly comprises a weighing sensor (2), an elastic element (3), a bearing plate (4) and a bearing frame (7), wherein the elastic element (3) is borne between the bearing plate (4) and the bearing frame (7), the top of the elastic element (3) is connected with the bearing plate (4), the bottom of the elastic element is connected with the bearing frame (7), the weighing sensor (2) comprises an induction part (2.1), a measuring part (2.2) and a measuring circuit, the induction part (2.1) is relatively fixed on the bearing plate (4), the measuring part (2.2) is relatively fixed on the bearing frame (7), and the longitudinal displacement of the bearing plate (4) drives the induction part (2.1) to generate relative displacement relative to the measuring part (2.2); the signal output end of the measuring circuit is connected with the sampling signal input end of the processor (16); the weighing device further comprises a measuring cover plate (1), and the top of the measuring cover plate (1) is hinged with the bearing plate (4); the weighing device further comprises rollers (8), the rollers (8) are arranged on steps (7.1) at two sides of the bearing frame (7), and the measuring cover plate (1) is supported on the rollers (8); the weighing device further comprises a shell (9), the shell (9) is coated outside the bearing frame (7), and an opening matched with the opening of the measuring cover plate (1) spanned on the bearing frame (7) is formed in the shell (9); the top of the elastic element (3) is detachably connected with the bearing plate (4), the bottom of the elastic element is detachably connected with the bearing frame (7), and the measuring circuit further comprises an aging compensation module for compensating a measuring result according to a fatigue aging curve of the elastic element (3).
2. A truck cargo weighing apparatus as defined in claim 1 wherein: the system also comprises a quick-release terminal board (12), an AD converter (15), a server (17) and a client (18); the quick-release terminal board (12) consists of a terminal (13) and a base (14) which is matched and connected with the terminal (13), the data input end of the terminal (13) is connected with a measuring circuit, the data output end of the terminal is connected with the processor (16) through an AD converter (15), and the processor (16) is connected with the server (17) through a communication network; the client (18) comprises any one or a combination of a vehicle-mounted mobile terminal, a management mobile terminal and a monitoring computer, and the client (18) is in communication connection with the server (17).
3. A truck cargo weighing apparatus according to claim 1 or 2, characterized in that: the intelligent alarm system also comprises an alarm (19), wherein an alarm signal input end of the alarm (19) is connected with the processor (16).
4. A truck cargo weighing apparatus as defined in claim 2 wherein: the terminal (13) is provided with a terminal buckling part (13.1), a mounting groove (14.1) is formed in the base (14), and a base buckling part (14.2) matched with the terminal buckling part (13.1) is formed in the mounting groove (14.1).
5. A truck cargo weighing apparatus as defined in claim 1 wherein: the device also comprises a guide device (5), wherein the guide device (5) comprises a guide cylinder (5.1) and a push rod (5.2) which is in clearance fit with the guide cylinder (5.1), one is installed on the bearing frame (7), and the other is installed on the bearing plate (4).
6. A truck cargo weighing apparatus as defined in claim 1 wherein: the weighing sensor (2) is a potentiometer type resistance sensor, the sensing part (2.1) is an electric brush of the potentiometer type resistance sensor, the measuring part (2.2) is a resistance element of the potentiometer type resistance sensor, one end of the measuring circuit is connected with the electric brush, and the other end of the measuring circuit is connected with the resistance element.
7. A truck cargo weighing apparatus as defined in claim 1 wherein: the weighing sensor (2) is a capacitive sensor, the sensing part (2.1) is a first polar plate of the capacitive sensor, the measuring part (2.2) is a second polar plate of the capacitive sensor, one end of the measuring circuit is connected with the first polar plate, and the other end of the measuring circuit is connected with the second polar plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145521.4A CN108168669B (en) | 2018-02-12 | 2018-02-12 | Weighing device for goods of truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145521.4A CN108168669B (en) | 2018-02-12 | 2018-02-12 | Weighing device for goods of truck |
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| CN108168669A CN108168669A (en) | 2018-06-15 |
| CN108168669B true CN108168669B (en) | 2023-11-03 |
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| CN201810145521.4A Active CN108168669B (en) | 2018-02-12 | 2018-02-12 | Weighing device for goods of truck |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109115319B (en) * | 2018-10-25 | 2020-08-07 | 长江师范学院 | Automobile weighing method |
| CN112697246B (en) * | 2021-03-25 | 2021-06-22 | 南京泰晟科技实业有限公司 | Load sensor capable of being installed quickly and using method thereof |
| CN114803351A (en) * | 2022-05-09 | 2022-07-29 | 浙江名创光电科技有限公司 | Automatic weighing mechanism and conveying device with same |
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