CN102042864A - Digital weighing sensor assembly and connecting method thereof - Google Patents
Digital weighing sensor assembly and connecting method thereof Download PDFInfo
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- CN102042864A CN102042864A CN2009101976231A CN200910197623A CN102042864A CN 102042864 A CN102042864 A CN 102042864A CN 2009101976231 A CN2009101976231 A CN 2009101976231A CN 200910197623 A CN200910197623 A CN 200910197623A CN 102042864 A CN102042864 A CN 102042864A
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- 238000005303 weighing Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses a digital weighing sensor assembly and a connecting method thereof. The digital weighing sensor assembly comprises an automobile scale display instrument and a plurality of digital sensors which are connected with the automobile scale display instrument through communication cables, wherein the digital sensors are sequentially connected in series by the communication cables. All digital sensors and the automobile scale display instrument in the digital weighing sensor assembly are connected in series by using a cascade method; and a digital junction box is avoided, so that the connected line distance is reduced, the cost is saved, the connecting mode is more flexible and the installation and the replacement of the digital sensors are more convenient.
Description
Technical Field
The invention relates to a digital electronic automobile weighing system, in particular to a digital weighing sensor assembly and a connecting method thereof.
Background
The standard configuration of the truck scale system consists of three basic units, namely a weighing platform, a weighing sensor and a weighing display part; wherein the weighing display part comprises a weighing display instrument, a junction box and a communication cable. Other external devices can be purchased according to different needs of users to form various configurations, including: computer, printer, large screen display, power surge protector, regulated power supply and multifunctional power supply socket.
Truck scale theory of operation: 1. simulation formula: the goods are fed into the weighing platform, under the action of gravity the elastic body of weighing sensor is elastically deformed, the impedance of strain gauge bridge circuit stuck on the elastic body is unbalanced, and an electric signal proportional to the weight value is outputted, and the analog signal is converted into digital signal by means of amplifier and A/D converter of weighing instrument, and then the weight signal is processed by microprocessor (CPU) of the instrument, and the data of weight can be directly displayed. If the display instrument is connected with a computer and a printer, the instrument can simultaneously transmit weight signals to equipment such as the computer to form a weighing management system. 2. The numerical expression is as follows: the goods enter the weighing platform, under the action of gravity of the object, the elastic body of the weighing sensor is deformed, the impedance of the strain gauge bridge circuit adhered on the elastic body is unbalanced, an electric signal proportional to the weight value is output, corresponding data processing is carried out through electronic components such as an amplifier, an A/D converter and a microprocessor in the sensor, a digital signal is output, and the digital signal of each sensor enters the weighing display instrument through the junction box to directly display the data such as the weight. If the display instrument is connected with a computer and a printer, the instrument can simultaneously transmit weight signals to equipment such as the computer to form a weighing management system.
The wiring of the truck scale system comprises the connection of a weighing sensor and a junction box, the connection of the junction box and a weighing display instrument, and the connection of the weighing display instrument and equipment such as a printer, a large-screen display, a computer and the like.
When the weighing sensor is connected with the junction box, a cable of the weighing sensor passes through the weighing platform and enters the junction box through the sealing joint, and the cable is connected to a corresponding binding post in the junction box according to different color codes of a four-core or six-core cable or after measurement according to a positive and negative excitation power supply, positive and negative feedback and positive and negative signals. And binding the rest cables of the sensor by using plastic binding belts.
When the junction box is connected with the weighing display instrument, one end of the special shielding cable enters the junction box through the sealing joint, each core wire is connected to the corresponding terminal in the junction box, and the other end of the special shielding cable penetrates through the metal pipe and is welded to the special plug corresponding to the weighing display instrument so as to be inserted into the socket of the weighing display instrument.
The weighing display instrument is configured with a special connecting wire when leaving factory and is used for connecting the weighing display instrument with a printer, a large-screen display, a computer and other equipment. When a user needs to configure a large-screen display, a printer and a computer, the user should explain the configuration when ordering goods.
In some of the above connection methods, all the sensors are connected in parallel through a junction box, and then connected to the meter through the junction box. Similar to the analog sensor connection method, a schematic diagram is shown in fig. 1. On one hand, the connection mode must use a special digital junction box, and junction boxes of different models and manufacturers are incompatible; on the other hand, because the wires at one end of the sensors are fixed, the distances from the sensors to the junction box are different, the cable lengths of the sensors need to be specified in advance or produced according to the longest length, and unnecessary waste is caused. If the length of the cable is not enough in use, the cable needs to be connected and lengthened, and possible communication hidden trouble is caused.
In view of the above, it is necessary to design a new digital load cell assembly and a connecting method thereof to solve the above technical problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a digital weighing sensor assembly and a connecting method thereof, which are used for solving the problem that junction boxes of different models and manufacturers are incompatible.
The invention adopts the following technical scheme: digital weighing sensor subassembly, this digital weighing sensor subassembly include truck scale display instrument and pass through a plurality of digital sensor that the communication cable connects gradually with truck scale display instrument, wherein, digital sensor includes A type sensor and B type sensor, the both sides that A type sensor one end is relative are equipped with a 4 core waterproof type aviation sockets respectively for connect with preceding A type sensor and a back A type sensor, B type sensor one end one side is equipped with 1 a 4 core waterproof type aviation sockets, is used for being connected as whole serial connection's terminal point with preceding A type sensor, the communication cable both ends are equipped with corresponding 4 core waterproof type aviation plugs and are used for being connected with digital sensor.
Preferably, the communications cable comprises two twisted pairs.
Preferably, a shielding layer is arranged outside the communication cable.
The invention also relates to a connecting method of the digital weighing sensor assembly, which comprises the following steps:
1) a 4-core waterproof aviation socket is arranged on the truck scale display instrument;
2) two ends of a plurality of communication cables are respectively provided with a 4-core waterproof aviation plug;
3) two opposite sides of one end of the A-type sensor are respectively provided with a 4-core waterproof aviation socket which is connected with the former A-type sensor and the latter A-type sensor in series;
4) one side of one end of the B-type sensor is provided with 1 4-core waterproof aviation socket which is connected with the previous A-type sensor to be used as the terminal point of the whole serial connection;
5) the 4-core waterproof aviation plug is matched with the 4-core waterproof aviation socket to be sequentially connected with the truck scale display instrument, the A-type sensor and the B-type sensor.
The invention relates to a digital weighing sensor assembly and a connecting method thereof, wherein a plurality of digital sensors are sequentially connected in series through communication cables. All digital sensors and the truck scale display instrument in the digital weighing sensor assembly are connected in series by a cascading method, a digital junction box is not used, the connecting distance is reduced, the cost is saved, the connecting mode is more flexible, and the digital sensors are more convenient to install and replace.
Drawings
FIG. 1 is a schematic view of a prior art digital load cell assembly connection;
FIG. 2 is a schematic view of the digital load cell assembly of the present invention in connection;
FIG. 3 is a schematic diagram of the digital load cell assembly of the present invention;
FIG. 4 is a schematic view of a type A sensor of the present invention connected to a communication cable; wherein,
1. waterproof socket
2. Waterproof plug
3. Communication cable
4. Signal line (twisted-pair)
5. Signal line (twisted-pair)
6. Sensor circuit
7. Sensor n-1
8. Sensor n
9. Sensor n +1
FIG. 5 is a schematic diagram of the connection between the type B sensor and the communication cable according to the present invention. Wherein.
1. Waterproof socket
2. Waterproof plug
3. Communication cable
4. Signal line (twisted-pair)
5. Signal line (twisted-pair)
6. Sensor circuit
7. Sensor n-1
8. Sensor n
9. Signal line terminal absorption circuit
Detailed Description
Referring to fig. 2 and 3, the digital weighing sensor assembly includes a truck scale display instrument and a plurality of digital sensors sequentially connected to the truck scale display instrument through communication cables, wherein the digital sensors include an a-type sensor and a B-type sensor, two opposite sides of one end of the a-type sensor are respectively provided with a 4-core waterproof aviation socket for connecting to a previous a-type sensor and a next a-type sensor, one side of one end of the B-type sensor is provided with 1 4-core waterproof aviation socket for connecting to the previous a-type sensor as a terminal of the whole serial connection, and two ends of the communication cables are provided with corresponding 4-core waterproof aviation plugs for connecting to the digital sensors.
The invention also relates to a connecting method of the digital weighing sensor assembly, which comprises the following steps:
1) a 4-core waterproof aviation socket is arranged on the truck scale display instrument;
2) two ends of a plurality of communication cables are respectively provided with a 4-core waterproof aviation plug;
3) two opposite sides of one end of the A-type sensor are respectively provided with a 4-core waterproof aviation socket which is connected with the former A-type sensor and the latter A-type sensor in series;
4) one side of one end of the B-type sensor is provided with 1 4-core waterproof aviation socket which is connected with the previous A-type sensor to be used as the terminal point of the whole serial connection;
5) the 4-core waterproof aviation plug is matched with the 4-core waterproof aviation socket to be sequentially connected with the truck scale display instrument, the A-type sensor and the B-type sensor.
Specifically, as shown in fig. 4 and 5, the sensor is divided into two types, i.e., an a type and a B type, wherein 2 4-core waterproof aviation sockets are installed on the a type sensor and used for being connected with the previous sensor and the next sensor, and 1 4-core waterproof aviation socket is installed on the B type sensor and used as a terminal point of the whole series system and connected with the previous sensor. And corresponding 4-core waterproof aviation plugs are arranged at two ends of the communication cable and are used for being connected with the front sensor and the rear sensor. In order to ensure the integrity of signal transmission, 2 pairs of twisted pairs are used as communication cables, and in order to further improve the communication quality, cables with shielding layers can be used.
According to the digital weighing sensor assembly and the connection method thereof, all digital sensors in the digital weighing sensor assembly are connected with the truck scale display instrument in series in a cascading method, a digital junction box is not used, the connection distance is reduced, the cost is saved, the connection mode is more flexible, and the digital sensors are more convenient to install and replace.
The description and applications of the invention herein are illustrative and are not intended to limit the scope of the invention to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and alternative and equivalent various components of the embodiments will be apparent to those skilled in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the invention.
Claims (6)
1. Digital weighing sensor subassembly, its characterized in that: this digital weighing sensor subassembly includes truck scale display instrument and passes through a plurality of digital sensor that the communication cable connects gradually with truck scale display instrument, wherein, digital sensor includes A type sensor and B type sensor, the both sides that A type sensor one end is relative are equipped with the waterproof type aviation socket of a 4 core respectively for connect with preceding A type sensor and a back A type sensor, B type sensor one end one side is equipped with the waterproof type aviation socket of 1 4 cores, is used for being connected as the terminal point of whole serial connection with preceding A type sensor, the communication cable both ends are equipped with the waterproof type aviation plug of corresponding 4 cores and are used for being connected with digital sensor.
2. The digital load cell assembly of claim 1, wherein: the communication cable includes two twisted pairs.
3. The digital load cell assembly of claim 1, wherein: and a shielding layer is arranged outside the communication cable.
4. A method of connecting a digital load cell assembly as claimed in claim 1, wherein: the method comprises the following steps:
1) a 4-core waterproof aviation socket is arranged on the truck scale display instrument;
2) two ends of a plurality of communication cables are respectively provided with a 4-core waterproof aviation plug;
3) two opposite sides of one end of the A-type sensor are respectively provided with a 4-core waterproof aviation socket which is connected with the former A-type sensor and the latter A-type sensor in series;
4) one side of one end of the B-type sensor is provided with 1 4-core waterproof aviation socket which is connected with the previous A-type sensor to be used as the terminal point of the whole serial connection;
5) the 4-core waterproof aviation plug is matched with the 4-core waterproof aviation socket to be sequentially connected with the truck scale display instrument, the A-type sensor and the B-type sensor.
5. The method of connecting a digital load cell assembly of claim 4, wherein: the communication cable includes two twisted pairs.
6. The method of connecting a digital load cell assembly of claim 4, wherein: and a shielding layer is arranged outside the communication cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910197623 CN102042864B (en) | 2009-10-23 | 2009-10-23 | Digital weighing sensor assembly and connecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910197623 CN102042864B (en) | 2009-10-23 | 2009-10-23 | Digital weighing sensor assembly and connecting method thereof |
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| Publication Number | Publication Date |
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| CN102042864A true CN102042864A (en) | 2011-05-04 |
| CN102042864B CN102042864B (en) | 2013-04-03 |
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| CN 200910197623 Expired - Fee Related CN102042864B (en) | 2009-10-23 | 2009-10-23 | Digital weighing sensor assembly and connecting method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929826A (en) * | 2012-11-16 | 2013-02-13 | 深圳市建恒测控股份有限公司 | System and method for transmitting multiple ultrasonic signals with single ultrasonic signal bus |
| CN103674216A (en) * | 2012-09-24 | 2014-03-26 | 梅特勒-托利多(常州)精密仪器有限公司 | Weighing sensor topology network based on multi-branch cable |
| CN104142173A (en) * | 2013-05-08 | 2014-11-12 | 宁波博达电气有限公司 | Digital weighing sensor and wiring method thereof |
| CN107144331A (en) * | 2017-05-27 | 2017-09-08 | 厦门亿克赛尔仪表科技有限公司 | A kind of small weighbridge instrument of New-type mould revolution |
| CN110536853A (en) * | 2017-03-31 | 2019-12-03 | 因温特奥股份公司 | The method of car load measuring system and the load for determining lift car |
| CN114754851A (en) * | 2022-06-15 | 2022-07-15 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Terminal box of weighing with fault identification function |
| CN116007729A (en) * | 2022-12-30 | 2023-04-25 | 航天南洋（浙江）科技有限公司 | Modularized heavy load weighing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075005A (en) * | 1992-01-29 | 1993-08-04 | 辽宁省计量测试技术研究所 | Ground type axle metering dynamic electronic rail balance |
| WO2007115433A1 (en) * | 2006-04-10 | 2007-10-18 | Chengdu Huoan Measure Technical Center | An ethernet network rail weighting apparatus |
| CN201302478Y (en) * | 2008-11-24 | 2009-09-02 | 李汶波 | Portable automobile weighting machine |
-
2009
- 2009-10-23 CN CN 200910197623 patent/CN102042864B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9601821B2 (en) | 2012-09-24 | 2017-03-21 | Mettler Toledo (Changzhou) Measurement Technology Ltd. | Load cell topology network based on multi-branch cables |
| CN103674216A (en) * | 2012-09-24 | 2014-03-26 | 梅特勒-托利多(常州)精密仪器有限公司 | Weighing sensor topology network based on multi-branch cable |
| WO2014044056A1 (en) * | 2012-09-24 | 2014-03-27 | Mettler Toledo (Changzhou) Measurement Technology Ltd. | Load cell topology network based on multi-branch cables |
| CN103674216B (en) * | 2012-09-24 | 2015-10-28 | 梅特勒-托利多(常州)精密仪器有限公司 | Based on the LOAD CELLS topological network of multi-way cable |
| CN102929826A (en) * | 2012-11-16 | 2013-02-13 | 深圳市建恒测控股份有限公司 | System and method for transmitting multiple ultrasonic signals with single ultrasonic signal bus |
| CN102929826B (en) * | 2012-11-16 | 2016-05-11 | 深圳市建恒测控股份有限公司 | A kind of single ultrasonic signal bus transfer multiplex ultrasonic signal system and method |
| CN104142173A (en) * | 2013-05-08 | 2014-11-12 | 宁波博达电气有限公司 | Digital weighing sensor and wiring method thereof |
| CN110536853A (en) * | 2017-03-31 | 2019-12-03 | 因温特奥股份公司 | The method of car load measuring system and the load for determining lift car |
| CN110536853B (en) * | 2017-03-31 | 2022-04-05 | 因温特奥股份公司 | Elevator car load measuring system and method for determining the load of an elevator car |
| US11603285B2 (en) | 2017-03-31 | 2023-03-14 | Inventio Ag | Elevator car load measurement system and method for determining a load of an elevator car |
| CN107144331A (en) * | 2017-05-27 | 2017-09-08 | 厦门亿克赛尔仪表科技有限公司 | A kind of small weighbridge instrument of New-type mould revolution |
| CN114754851A (en) * | 2022-06-15 | 2022-07-15 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Terminal box of weighing with fault identification function |
| CN114754851B (en) * | 2022-06-15 | 2022-09-02 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Terminal box of weighing with fault recognition function |
| CN116007729A (en) * | 2022-12-30 | 2023-04-25 | 航天南洋（浙江）科技有限公司 | Modularized heavy load weighing system |
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| CN102042864B (en) | 2013-04-03 |
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Granted publication date: 20130403 Termination date: 20171023 |
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