CN111928933A - Combined weighing device and weighing method - Google Patents
Combined weighing device and weighing method Download PDFInfo
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- CN111928933A CN111928933A CN202010574971.2A CN202010574971A CN111928933A CN 111928933 A CN111928933 A CN 111928933A CN 202010574971 A CN202010574971 A CN 202010574971A CN 111928933 A CN111928933 A CN 111928933A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/62—Over or under weighing apparatus
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Abstract
A combined weighing device comprises a plurality of weighing modules, a weighing platform and an intelligent edge calculator, wherein the weighing modules are arranged at the lower end of the weighing platform, and each weighing module is respectively connected with the intelligent edge calculator in a wireless connection mode; each weighing module comprises a weighing sensor and a weighing instrument, wherein the weighing sensor is used for acquiring the weight above a supporting point where the weighing sensor is positioned, transmitting the weight to the weighing instrument for display, and transmitting the acquired weight data serving as local weight data signals to the intelligent edge calculator; the intelligent edge calculator is used for receiving the local weight data signals transmitted by the weighing modules, analyzing and processing the received local weight data signals and finally obtaining the total weight; the weighing method comprises the following steps: weighing the weighing platform in an idle load manner, and inputting a weighing abnormal deviation limit value before weighing; judging the no-load weighing state of the weighing platform; and loading and weighing to obtain the weight of the weighing object. The weighing device and the weighing method can timely detect weighing abnormity and ensure weighing accuracy.
Description
Technical Field
The invention relates to a combined weighing device and a weighing method, belonging to the technical field of weighing machines.
Background
The weighing apparatus is a weighing device for determining the mass of an object by utilizing the gravity principle, is closely related to the economic and civil life, and is widely applied to the departments of industry, agriculture, commerce, scientific research, medical treatment and health and the like. The accuracy and reliability of the weighing apparatus are the most important technical indexes for weighing, but the conventional weighing apparatus often has weighing abnormality in the use process, wherein the weighing abnormality caused by a weighing device (comprising a weighing sensor and a weighing instrument) is a main fault source of the weighing apparatus.
Because the weighing sensor is a comprehensive technical product, the reason of generating faults is very complicated, such as elastic body deformation, network line and bridge faults, improper manufacturing process and the like, so that the fault diagnosis is very difficult; the fault of the weighing apparatus is usually displayed through a terminal instrument, once the instrument shows the fault phenomenon, related personnel need to accurately judge each link of the system in the work of detecting, checking and diagnosing the fault of the weighing apparatus, such as detecting the instrument, a system middle junction box, mechanical installation, a transmission cable and a plurality of sensors, and the like, which is very troublesome.
Therefore, in order to diagnose and prevent the failure, the conventional method is that related technicians regularly check the mechanical installation state of the weighing apparatus, regularly open the intermediate junction box of the weighing sensor to detect the working state of each weighing sensor, and regularly adopt the standard signal source to detect the weighing instrument, which not only wastes time and labor, but also cannot predict and eliminate the failure in time, thus being not beneficial to the improvement of the production efficiency and the prevention of economic loss.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a combined weighing device and a weighing method, wherein the weighing device can monitor the working state of a weighing apparatus on line and carry out fault prediction so as to ensure the metering precision of the weighing apparatus and the running reliability of equipment; the weighing method can timely detect the abnormal weighing state and ensure the weighing accuracy.
In order to achieve the purpose, the invention provides a combined weighing device which comprises a plurality of weighing modules, a weighing platform and an intelligent edge calculator, wherein the weighing modules are arranged at the lower end of the weighing platform, and each weighing module is used as a supporting point to support the weighing platform and is respectively connected with the intelligent edge calculator in a wireless connection mode;
each weighing module is used for independently weighing and comprises a weighing sensor and a weighing instrument, wherein the weighing sensor is used for acquiring weight data above a supporting point where the weighing sensor is located, transmitting the weight data to the weighing instrument for display, and transmitting the acquired weight data to the intelligent edge calculator as a local weight data signal;
the intelligent edge calculator is used for receiving the local weight data signals transmitted by the weighing modules, analyzing and processing the received local weight data signals and finally obtaining the total weight of the object; when the received local weight data signal is found to be abnormal, a warning is sent out to remind a worker to adjust the related weighing module.
Further, the wireless connection mode is any one of bluetooth, infrared, WIFI, ZigBee and LoRa.
Furthermore, the intelligent edge calculator is a computer terminal, a tablet computer, a mobile phone terminal or a computing device designed by a user.
A combined weighing method comprises the following steps:
step one, weighing platform in no-load mode, and inputting a weighing abnormal deviation limit value P before weighing;
step two, judging the no-load weighing state of the weighing platform, W1PIs no-load weight of No. 1 weighing module platform, W2PIs the no-load weight of the 2# weighing module weighing platformPIs the no-load weight of the weighing platform of the n # weighing module and the total no-load weight W of the weighing platform calculated by the edge calculatorPEqual to the sum of the unloaded weights of the weighing platforms of the n weighing modules, namely: wP＝W1P+W2P+···+WnPWhen (W1)P-WP/n)/(WP/n)|<P, and | (W2)P-WP/n) /(WP/n)|<P,. and | (Wn)P-WP/n)/(WP/n)|<P, indicating that the working state of each weighing module is normal, further weighing, otherwise sending a weighing abnormity warning of the corresponding weighing module, and prompting an operator to adjust the weighing module with corresponding out-of-tolerance until each weighing module is in the normal working state;
step three, carrying out loading weighing, W1GThe weight of the object weighed by the 1# weighing module, W2GThe weight of the object weighed by the 2# weighing module is measured, wherein the weight is the weight of the object weighed by the 2# weighing moduleGThe weight W of the weighed object is obtained by calculating the weight of the object weighed by the n # weighing module through an intelligent edge calculatorG＝W1G+W2G+···+WnG。
Further, the adjustment of the out-of-tolerance weighing module includes checking whether the installation of the weighing module meets installation requirements, adjusting parameters of a weighing instrument, checking electrical wiring, checking whether the weighing module is damaged, and replacing damaged parts in case of damage.
According to the invention, the lower end of the weighing platform is provided with the weighing modules for supporting the weighing platform, each weighing module can be used as a supporting point to realize independent weighing of local weight, and the weighed local weight data signal is transmitted to the weighing instrument to be displayed, and simultaneously, the acquired weight data is transmitted to the intelligent edge calculator as a local weight data signal, so that the weighed local weight of each weighing module at the weighing instrument can be visually displayed, and the display accuracy of each weighing instrument can be verified through the calculation of the intelligent edge calculator; the intelligent edge calculator can also perform early warning on the working state of each weighing module according to a set program, and when the received local weight data signal is found to be abnormal, the intelligent edge calculator gives a warning to remind a worker to adjust the related weighing module, so that the working state of the weighing apparatus can be monitored on line, the fault prediction can be performed, and the metering precision of the weighing apparatus and the running reliability of equipment can be ensured; the weighing method comprises the steps of carrying out no-load weighing on a weighing platform before weighing an object, determining deviation limitation caused by abnormal weighing, judging the no-load weighing and the deviation limitation of each weighing module through a set formula, and carrying out loading weighing on the weighing modules on the premise of ensuring that the weighing modules are in a normal weighing state to obtain the weight of the weighed object, so that the weighing accuracy is ensured.
Drawings
FIG. 1 is a block diagram of the operating principles of the weighing system of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a combined weighing apparatus includes a plurality of weighing modules, a weighing platform and an intelligent edge calculator, wherein the weighing modules are disposed at the lower end of the weighing platform, and each weighing module is used as a supporting point to support the weighing platform and is respectively connected with the intelligent edge calculator in a wireless connection manner;
each weighing module is used for independently weighing and comprises a weighing sensor and a weighing instrument, wherein the weighing sensor is used for acquiring weight data above a supporting point where the weighing sensor is located, transmitting the weight data to the weighing instrument for display, and transmitting the acquired weight data to the intelligent edge calculator as a local weight data signal;
the intelligent edge calculator is used for receiving the local weight data signals transmitted by the weighing modules, analyzing and processing the received local weight data signals and finally obtaining the total weight of the object; when the received local weight data signal is found to be abnormal, a warning is sent out to remind a worker to adjust the related weighing module.
Specifically, the wireless connection mode is any one of bluetooth, infrared, WIFI, ZigBee and LoRa.
Specifically, the intelligent edge calculator is a computer terminal, a tablet computer, a mobile phone terminal or a computing device designed by a user.
A combined weighing method comprises the following steps:
step one, weighing platform in no-load mode, and inputting a weighing abnormal deviation limit value P before weighing;
step two, judging the no-load weighing state of the weighing platform, W1PIs no-load weight of No. 1 weighing module platform, W2PIs the no-load weight of the 2# weighing module weighing platformPIs the no-load weight of the weighing platform of the n # weighing module and the total no-load weight W of the weighing platform calculated by the edge calculatorPEqual to the sum of the unloaded weights of the weighing platforms of the n weighing modules, namely: wP＝W1P+W2P+···+WnPWhen (W1)P-WP/n)/(WP/n)|<P, and | (W2)P-WP/n) /(WP/n)|<P,. and | (Wn)P-WP/n)/(WP/n)|<P, indicating that the working state of each weighing module is normal, further weighing, otherwise sending a weighing abnormity warning of the corresponding weighing module, and prompting an operator to adjust the weighing module with corresponding out-of-tolerance until each weighing module is in the normal working state;
step three, carrying out loading weighing, W1GThe weight of the object weighed by the 1# weighing module, W2GThe weight of the object weighed by the 2# weighing module is measured, wherein the weight is the weight of the object weighed by the 2# weighing moduleGThe weight W of the weighed object is obtained by calculating the weight of the object weighed by the n # weighing module through an intelligent edge calculatorG＝W1G+W2G+···+WnG。
The adjustment of the out-of-tolerance weighing module comprises checking whether the installation of the weighing module meets the installation requirement, adjusting the parameters of a weighing instrument, checking electrical wiring, checking whether the weighing module is damaged or not, and replacing damaged parts under the condition of damage.
Example (b):
the number of the weighing modules is 4, the weighing modules are respectively and fixedly arranged at the lower ends of four corners at the bottom of the weighing platform to be used as supporting points, and the weighing method comprises the following steps:
step one, weighing a weighing platform in a no-load way, and inputting a weighing abnormal deviation limit value of 0.15 before weighing;
step two, judging the no-load weighing state of the weighing platform, W1PIs the no-load weight of the 1# weighing module platform of 0.5t, W2PWeighing the platform of the 2# weighing module with the no-load weight of 0.4t, W3PWeighing the platform of the 3# weighing module with the no-load weight of 0.4t, W4PIs no-load weight of the weighing platform of the 4# weighing module of 0.5t, and the total weight W of the weighing platform calculated by the edge calculatorPEqual to the sum of the empty weights of the weighing platforms of 4 weighing modules, namely: wP＝W1P+W2P+W3P+W4P0.5+0.4+0.4+ 0.5-1.8 t; when | (W1)P-WP/4)/(WP/4)|<P, namely: 0.11 | (0.5-1.8/4)/(1.8/4) |<0.15, and | (W2)P-WP/4)/(WP/4)|<P, namely: 0.11 | (0.4-1.8/4)/(1.8/4) |<0.15, and | (W3)P-WP/4)/(WP/4)|<P, namely: 0.11 | (0.4-1.8/4)/(1.8/4) |<0.15, and | (W4)P-WP/4)/(WP/4)|<P, namely: 0.11 | (0.5-1.8/4)/(1.8/4) |<0.15, the weighing work is normal, and the next step of weighing can be carried out;
when the weighing deviation of any weighing module exceeds the weighing abnormal deviation limit value set by the system, sending a weighing abnormal alarm of the corresponding weighing module and prompting an operator to adjust the weighing module with corresponding out-of-tolerance;
step three, loading and weighing, and displaying the weight W of the weighed object in real timeGI.e. WG＝W1G+W2G+W3G+ WnG(ii) a W1 in this embodimentGThe weight of the object weighed by the 1# weighing module is 8.2t, W2GThe weight of the material weighed by the 2# weighing module is 7.6t, W3GThe weight of the object weighed by the 3# weighing module is 8.9t, W4GThe weight of the object weighed by the 4# weighing module is 7.8t, and the weight W of the weighed object is obtainedG＝8.2+7.6+8.9+7.8＝32.5t。
Claims (5)
1. A combined weighing device is characterized by comprising a plurality of weighing modules, a weighing platform and an intelligent edge calculator, wherein the weighing modules are arranged at the lower end of the weighing platform, and each weighing module is used as a supporting point to support the weighing platform and is respectively connected with the intelligent edge calculator in a wireless connection mode;
each weighing module is used for independently weighing and comprises a weighing sensor and a weighing instrument, wherein the weighing sensor is used for acquiring weight data above a supporting point where the weighing sensor is located, transmitting the weight data to the weighing instrument for display, and transmitting the acquired weight data to the intelligent edge calculator as a local weight data signal;
the intelligent edge calculator is used for receiving the local weight data signals transmitted by the weighing modules, analyzing and processing the received local weight data signals and finally obtaining the total weight of the object; when the received local weight data signal is found to be abnormal, a warning is sent out to remind a worker to adjust the related weighing module.
2. The combined weighing device of claim 1, wherein the wireless connection is any one of bluetooth, infrared, WIFI, ZigBee and LoRa.
3. The combined weighing apparatus of claim 1 or 2, wherein the intelligent edge calculator is a computer terminal, a tablet computer, a mobile phone terminal or a user-designed computing device.
4. A combined weighing method is characterized by comprising the following steps:
step one, weighing platform in no-load mode, and inputting a weighing abnormal deviation limit value P before weighing;
step two, judging the no-load weighing state of the weighing platform, W1PIs no-load weight of No. 1 weighing module platform, W2PWeighing the no-load weight of 2# weighing module platform, … …, WnPIs the no-load weight of the weighing platform of the n # weighing module and the total no-load weight W of the weighing platform calculated by the edge calculatorPWeighing platform empty load equal to n weighing modulesThe sum of the amounts, i.e.: wP＝W1P+W2P+…+WnPWhen (W1)P-WP/n)/(WP/n)|<P, and | (W2)P-WP/n)/(WP/n)|<P, … … and | (Wn)P-WP/n)/(WP/n)|<P, indicating that the working state of each weighing module is normal, further weighing, otherwise sending a weighing abnormity warning of the corresponding weighing module, and prompting an operator to adjust the weighing module with corresponding out-of-tolerance until each weighing module is in the normal working state;
step three, carrying out loading weighing, W1GThe weight of the object weighed by the 1# weighing module, W2GObject weight weighed by weighing Module # 2, … …, WnGThe weight W of the weighed object is obtained by calculating the weight of the object weighed by the n # weighing module through an intelligent edge calculatorG＝W1G+W2G+…+WnG。
5. A combined weighing method according to claim 4 wherein the adjustment of the out-of-tolerance weighing module includes checking that the weighing module is installed to meet installation requirements, adjusting the parameters of the weighing apparatus, checking electrical wiring, checking that the weighing module is damaged, and in the event of damage, replacing the damaged component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010574971.2A CN111928933A (en) | 2020-06-22 | 2020-06-22 | Combined weighing device and weighing method |
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| CN202010574971.2A CN111928933A (en) | 2020-06-22 | 2020-06-22 | Combined weighing device and weighing method |
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Cited By (2)
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| CN112504423A (en) * | 2020-11-24 | 2021-03-16 | 宁波柯力传感科技股份有限公司 | Truck scale balance test system and method |
| CN114623912A (en) * | 2020-12-11 | 2022-06-14 | 顺丰科技有限公司 | Weighing abnormity detection method and device for dynamic scale, electronic equipment and storage medium |
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Application publication date: 20201113 |