A weighing system with self-calibration function and its method
A weighing system and self-calibration technology, which is applied in the field of weighing systems, can solve problems such as the gap blockage of the installation method of the calibration weight and weight sensor, the inability to guarantee, and the inconvenience of weighing and calibrating operations.
Active Publication Date: 2019-02-26
XCMG CONSTR MACHINERY
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Problems solved by technology
Most of its weighing calibration settings are performed when reinstallation, time management or human judgment need to be calibrated, which has a certain degree of subjectivity, and often cannot guarantee the accuracy of weighing
[0003] Especially for construction machinery with a large tonnage weighing bucket structure, due to the particularity of the weight of the calibration weight, the harsh working conditions, and the sensor installation method, wear, and gap blockage of the weighing system’s hardware, etc. Accurate weighing of the weighing system brings many challenges, but also brings a lot of inconvenience to the weighing calibration operation
[0004] Therefore, at present, for various situations where the error of on-site weighing is greater than the accuracy requirement, automatic warning cannot be realized, and it can only be judged by humans, and the accuracy of weighing cannot be guaranteed.
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[0052] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0053] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.
[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0055] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authoriz...
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The invention discloses a weighing system and a weighing method having the self-calibration function. The system comprises an initiation unit and a calibration processing unit, wherein the initiation unit is used for storing effective zones, the effective zones comprise multiple data points confirmed by object weight values and current values, the calibration processing unit is used for acquiring a standard weight value of any standard object and determining whether data points confirmed by the standard weight value of the standard object and a current value acquired during measuring the actual weight value of the standard object are in the effective zones, if yes, weighing precision satisfies requirements, otherwise, weighing precision does not satisfy the requirements, and the standard object is a weighing empty bucket or the weighing empty bucket plus known-weight objects. Through the system, whether weighing precision satisfies the requirements is automatically determined.
Description
technical field [0001] The invention relates to a weighing system of engineering machinery, in particular to a weighing system with self-calibration function and a method thereof. Background technique [0002] At present, the weighing equipment on construction machinery, especially the weighing equipment of construction machinery with weighing bucket, mostly uses the form of weighing instrument coupled with PLC (Programmable Logic Controller, programmable logic controller) to realize automatic weighing and The control function, that is, the weighing instrument sends the weighed object weight value directly to the PLC and displays based on this weight value. Most of its weighing calibration settings are performed when reinstalling, according to time management, or when calibration is required by human judgment, which has a certain degree of subjectivity, and often cannot guarantee the accuracy of weighing. [0003] Especially for construction machinery with a large tonnage w...
Claims
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IPC IPC(8): G01G23/01
Inventor 魏彬刘会娟王美娜
Owner XCMG CONSTR MACHINERY