CN112082635A - State monitoring and fault judging method for electronic belt scale - Google Patents

Abstract

The invention provides a state monitoring and fault judging method of an electronic belt scale, which comprises the steps of presetting weight threshold data of the electronic belt scale in various running states; acquiring the running state of the electronic belt scale; the method comprises the steps of obtaining actual weight data of a weight sensor of the electronic belt scale, obtaining weight threshold data under the operation state according to the operation state of the electronic belt scale, comparing the actual weight data with the corresponding weight threshold data, judging whether the electronic belt scale breaks down or not according to a comparison result, and sending prompt information according to the comparison result if the electronic belt scale breaks down. The method provided by the invention can reduce the workload of electronic belt scale calibration, reduce the labor input, avoid the analysis of human factors on the faults of the electronic belt scale and improve the accuracy of the electronic belt scale calibration.

Description

A method for state monitoring and fault determination of electronic belt scales

technical field

The invention relates to the technical field of fault judgment of measuring instruments, in particular to a state monitoring and fault judgment method of an electronic belt scale.

Background technique

In the production of tobacco redrying and silk making, tobacco leaves and shredded tobacco need to be flavored, added, and water added. These operations need to be proportioned according to weight percentages. Usually, an electronic belt scale is used to weigh various materials. Therefore, the electronic belt scale needs to be calibrated and checked regularly or during the production process. Due to the cumbersome work of calibrating and spot-checking the electronic belt scale, the labor intensity of the operator is increased, resulting in the consumption of manpower. In addition, the number of electronic belt scales used in the tobacco production process is large, and it takes a lot of time to check one by one, which affects the production efficiency of the workshop. In addition, since the detection of the electronic belt scale needs to be carried out manually, there are many human factors, which is not conducive to the maintenance of product quality and the maintenance of the electronic belt scale.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides a state monitoring and fault determination method for an electronic belt scale, so as to solve the problems that the current detection workload of the electronic belt scale is too large and there are many human factors.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a state monitoring and fault determination method for an electronic belt scale, comprising: presetting weight threshold data of the electronic belt scale under various operating states; obtaining the electronic belt scale obtain the actual weight data of the weight sensor of the electronic belt scale, obtain the weight threshold data in this operating state according to the operating status of the electronic belt scale, compare the actual weight data with the corresponding weight threshold data, and judge the electronic belt scale according to the comparison result. Whether the belt scale is faulty, if there is a fault, a prompt message will be sent according to the comparison result.

Preferably, judging whether the electronic belt scale is faulty according to the comparison result, and issuing prompt information according to the comparison result includes: the electronic belt scale sends the data of the comparison result to the host computer, and the host computer sends the prompt message according to the comparison result.

Further, the running state of the electronic belt scale includes a static state, an idle running state and a loaded state; in the loaded state, the fault prompt information of the electronic belt scale is different from the fault prompt information in the static state or the dry running state.

Further, the weight threshold data in the static state includes: the static upper threshold and the static lower threshold; confirming that the electronic belt scale fails includes: in the static state, the actual weight data is less than or equal to the static lower threshold or greater than or equal to the static upper threshold.

Further, the weight threshold data in the dry running state includes: the dry running upper threshold and the dry running lower threshold; confirming the failure of the electronic belt scale includes: in the dry running state, the actual weight data is less than or equal to the dry running lower limit threshold or greater than or equal to the dry running. upper threshold.

Further, the weight threshold data in the dry running state includes: the upper limit threshold value of dry running and the lower limit threshold value of dry running; confirming that the electronic belt scale is faulty includes: in the dry running state, the actual weight data is less than or equal to the lower limit threshold value of static, and the actual weight data is within Between the dry running upper threshold and the dry running lower threshold; or, the actual weight data is greater than or equal to the resting upper threshold, and the actual weight data is between the dry running upper threshold and the dry running lower threshold.

Further, the weight threshold data of the load state includes: the upper limit threshold of the load and the lower limit threshold of the load; confirming that the electronic belt scale is faulty includes: under the load state, the actual weight data is less than or equal to the lower limit threshold of the load or greater than or equal to the upper limit of the load threshold. Threshold.

Further, the number of weight sensors is two, and they are located under the two ends of the same measuring roller; the weight threshold data in the static state includes: the static upper limit threshold and the static lower limit threshold; confirming that the electronic belt scale is faulty includes: in the static state , the actual weight data of any one of the weight sensors is less than or equal to the stationary lower threshold, and the actual weight data of the other weight sensor is greater than or equal to the stationary upper threshold.

Further, the number of weight sensors is two, and they are located under the two ends of the same measuring idler; the weight threshold data of the dry running state includes: the upper limit threshold value of the dry running and the lower limit threshold value of the dry running; confirming that the electronic belt scale is faulty includes: In the dry running state, the actual weight data of any one weight sensor is less than or equal to the dry running lower threshold, and the actual weight data of the other weight sensor is greater than or equal to the dry running upper threshold.

Further, the number of weight sensors is two, and they are located under the two ends of the same measuring roller; the weight threshold data of the load state includes: the upper limit threshold of the load and the lower limit threshold of the load; confirming that the electronic belt scale is faulty includes: under the load state , the actual weight data of any one weight sensor is less than or equal to the lower load threshold, and the actual weight data of the other weight sensor is greater than or equal to the upper load threshold.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention determines whether the electronic belt scale fails by obtaining the actual weight data of one or more weight sensors of the electronic belt scale, and obtaining the weight threshold value data in a preset running state, and comparing the actual weight data and the weight threshold value data. The whole detection process is realized by electronic equipment and computer programs, which can reduce the influence of human factors and improve the detection accuracy of the electronic belt scale. On the other hand, since the entire detection process is realized by relying on electronic equipment, manpower can be reduced and the production cost of tobacco can be reduced.

Description of drawings

FIG. 1 is a structural diagram of an electronic belt scale to which an embodiment of the present invention is applied.

FIG. 2 is a flow chart of an embodiment of an inventive method.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention is a state monitoring and fault determination method of an electronic belt scale. Referring to FIG. 1 , the electronic belt scale 10 has a bracket 11 , four corners of the bracket are provided with adjusting screws 12 , and the lower end of the adjusting screw 12 is provided with external threads , each adjusting screw 12 can be installed on the base, and the balance of the bracket 11 can be adjusted by adjusting the adjusting screw 12 . A hanging tag 15 is placed on the bracket 11 . In this embodiment, two hanging tags 15 are arranged on the bracket 11 , and the two hanging tags 15 are symmetrically arranged on the bracket 11 .

A plurality of weight sensors 16 are arranged on the bracket 11 , and one or more metering rollers 14 are arranged on the bracket 11 , and both ends of each metering roller 14 are supported on a weight sensor 16 . In addition, an amplifier 13 is provided on the bracket 11 , and the data detected by the weight sensor 16 can be amplified by the amplifier 13 for subsequent calculation.

When weighing various materials, a pallet can be placed on the metering roller 14, and the material can be placed on the pallet. The weight sensor 16 detects the weight of the material and amplifies the actual weight data, and then displays it on the display device. In order to facilitate the operator to know the weight of the material.

The calibration of the electronic belt scale 10 in this embodiment is performed in an automated manner, and this embodiment is aimed at calibrating the electronic belt scale under different operating states, thereby improving the calibration accuracy of the electronic belt scale. Referring to FIG. 2 , first, step S1 is performed to set the weight threshold data of the electronic belt scale under different operating states. For example, the operating state of the electronic belt scale may include a static state, an idle state, and a loaded state. In this embodiment, the weight threshold data under each operating state is set, for example, for the static state, the set weight threshold parameter Including the static upper limit threshold and the static lower limit threshold. For the dry running state, the set weight threshold parameters include the dry running upper limit threshold and the dry running lower limit threshold. For the load state, the set weight threshold parameters include the upper limit threshold of the load and the lower limit of the load. Threshold.

Then, step S2 is performed to obtain the current running state of the electronic belt scale, that is, it is determined which of the static state, the idle running state and the load state the current running state of the electronic belt scale is. Next, step S3 is performed to obtain the actual weight data of the weight sensor of the electronic belt scale, that is, to obtain the actual data of one or more weight sensors of the electronic belt scale under a specific operating state. Then, step S4 is performed to obtain the weight threshold data in the operating state, and step S5 is performed to compare the actual measurement data of the weight sensor with the weight threshold data under the operating state, and step S6 is performed to send the comparison result. to the host computer.

In this embodiment, the electronic belt scale can compare the actual measurement data of the weight sensor with the weight threshold data in the determined operating state through a PLC program, and input the comparison result into a preset data block. Then, the data in the PLC designated data block is read by the host computer, thereby realizing data transmission.

After the upper computer reads the data of the comparison result, step S7 is performed, and corresponding prompt information is determined according to the comparison result under different circumstances. The detection in this embodiment can be divided into detection on the data of any one of the multiple weight sensors, or detection on the actual weight data of the two weight sensors at both ends of the same measuring roller 14 .

If the data of any one of the multiple weight sensors is detected, first determine the running state of the electronic belt scale, and if it is in a static state, use the actual weight data of each weight sensor and the static upper limit threshold and static lower limit threshold. Make a comparison, that is, to judge whether the actual weight data of any weight sensor is less than or equal to the static lower limit threshold, or whether the actual weight data of any weight sensor is greater than or equal to the static upper limit threshold. For calibration, the first prompt information needs to be issued. For example, the first prompt information includes: prompting to check whether the belt is deviated, prompting to check the force, damage and wiring of the corresponding weight sensor, prompting to check the corresponding amplifier current Whether the source is faulty.

If it is in the dry running state, use the actual weight data of each weight sensor to compare it with the dry running upper threshold and the dry running lower threshold, that is, to judge whether the actual weight data of any weight sensor is less than or equal to the dry running lower threshold, or any Whether the actual weight data of a weight sensor is greater than or equal to the upper limit threshold of dry running, if so, it is considered that the electronic belt scale is faulty and needs to be calibrated, and a first prompt message needs to be sent.

Of course, if it is in the dry running state, the following judgment can also be performed: in the dry running state, determine whether the actual weight data of any weight sensor is less than or equal to the static lower limit threshold, and the actual weight data is between the dry running upper threshold and the dry running lower limit. between the thresholds; or, the actual weight data of any weight sensor is greater than or equal to the static upper limit threshold, and the actual weight data is between the dry running upper threshold and the dry running lower threshold. If so, it is considered that the electronic belt scale is faulty and needs to be calibrated , the first prompt message needs to be issued.

If it is in the load line state, use the actual weight data of each weight sensor to compare with the upper and lower load thresholds, that is, to determine whether the actual weight data of any weight sensor is less than or equal to the lower load threshold, or any weight sensor. Whether the actual weight data is greater than or equal to the upper limit of the load threshold, if so, it is considered that the electronic belt scale is faulty and needs to be calibrated, and a second prompt message needs to be issued. The second prompt information is different from the first prompt information. The second prompt information includes : Prompt to check the abnormal condition of the belt, prompt to check the status of the weight sensor.

If the actual weight data of the two weight sensors at both ends of the same measuring roller is to be detected, the actual weight data of the two weight sensors need to be obtained separately, and for the static state, it is judged whether the following situation occurs: the two ends of the same measuring roller Among the weight sensors, the actual weight data of any one weight sensor is less than or equal to the static lower limit threshold, and the actual weight data of the other weight sensor is greater than or equal to the static upper limit threshold. If so, it is considered that the electronic belt scale is faulty and needs to be calibrated. Sending out third prompt information, for example, the third prompt information includes: prompt to detect the deviation or damage of the belt, and prompt to adjust or replace the belt.

For the idling state, judge whether the following situation occurs: Among the two weight sensors at both ends of the same metering roller, the actual weight data of any one of the weight sensors is less than or equal to the lower limit threshold of the idling, and the actual weight data of the other weight sensor is greater than or equal to the empty The upper limit of the operation threshold, if so, it is considered that the electronic belt scale is faulty and needs to be calibrated, and a third prompt message needs to be issued.

For the load state, judge whether the following situation occurs: Among the two weight sensors at both ends of the same metering roller, the actual weight data of any one of the weight sensors is less than or equal to the lower limit threshold of the load, and the actual weight data of the other weight sensor is greater than or equal to the upper limit threshold of the load. , if so, it is considered that the electronic belt scale is faulty and needs to be calibrated, and a third prompt message needs to be issued.

Table 1 summarizes the fault detection and prompt information of the electronic belt scale in various operating states in this embodiment.

Table 1: Summary of fault detection and prompt information of electronic belt scale in various operating states

It can be seen that the present invention realizes the automatic calibration of the electronic belt scale in an automated way, without manual participation, reduces the influence of human factors on the calibration of the electronic belt scale, improves the calibration accuracy of the electronic belt scale, and reduces the consumption of the electronic belt scale calibration. manpower. In addition, corresponding prompt information is provided for various operating states of the electronic belt scale, which enables the operator to accurately repair the fault of the electronic belt scale and improves the efficiency of the electronic belt scale troubleshooting.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A method for monitoring the state and judging the fault of an electronic belt scale is characterized by comprising the following steps:

presetting weight threshold data of the electronic belt scale in various running states;

acquiring the running state of the electronic belt scale;

acquiring actual weight data of a weight sensor of the electronic belt scale, acquiring weight threshold data in the operating state according to the operating state of the electronic belt scale, comparing the actual weight data with the corresponding weight threshold data, judging whether the electronic belt scale fails according to a comparison result, and sending prompt information according to the comparison result if the electronic belt scale fails.

2. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 1, wherein:

judging whether the electronic belt scale breaks down according to the comparison result, and sending prompt information according to the comparison result comprises the following steps:

and the electronic belt scale sends the data of the comparison result to an upper computer, and the upper computer sends the prompt information according to the comparison result.

3. A condition monitoring and failure determining method of an electronic belt scale according to claim 1 or 2, characterized in that:

the running states of the electronic belt scale comprise a static state, an empty running state and a load state;

and under the load state, the fault prompt information of the electronic belt scale is different from the fault prompt information under the static state or the idle running state.

4. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the weight threshold data for the static state comprises: a static upper threshold and a static lower threshold;

confirming that the electronic belt scale is out of order comprises: in a static state, the actual weight data is less than or equal to the static lower threshold or greater than or equal to the static upper threshold.

5. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the weight threshold data of the air operating state comprises: an idle operation upper limit threshold and an idle operation lower limit threshold;

confirming that the electronic belt scale is out of order comprises: and in the idle running state, the actual weight data is less than or equal to the idle running lower limit threshold value or greater than or equal to the idle running upper limit threshold value.

6. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 4, wherein:

the weight threshold data of the air operating state comprises: an idle operation upper limit threshold and an idle operation lower limit threshold;

confirming that the electronic belt scale is out of order comprises: in a non-operating state, the actual weight data is less than or equal to the static lower threshold, and the actual weight data is between the non-operating upper threshold and the non-operating lower threshold; or, the actual weight data is greater than or equal to the static upper threshold, and the actual weight data is between the idling upper threshold and the idling lower threshold.

7. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the weight threshold data of the loading state comprises: a load upper limit threshold and a load lower limit threshold;

confirming that the electronic belt scale is out of order comprises: and under a load state, the actual weight data is less than or equal to the lower load threshold or greater than or equal to the upper load threshold.

8. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the two weight sensors are respectively positioned below two ends of the same metering carrier roller;

the weight threshold data for the static state comprises: a static upper threshold and a static lower threshold;

confirming that the electronic belt scale is out of order comprises: in a static state, the actual weight data of any one of the weight sensors is less than or equal to the static lower threshold, and the actual weight data of the other weight sensor is greater than or equal to the static upper threshold.

9. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the two weight sensors are respectively positioned below two ends of the same metering carrier roller;

the weight threshold data of the air operating state comprises: an idle operation upper limit threshold and an idle operation lower limit threshold;

confirming that the electronic belt scale is out of order comprises: in the idling state, the actual weight data of any one of the weight sensors is less than or equal to the idling lower threshold, and the actual weight data of the other weight sensor is greater than or equal to the idling upper threshold.

10. The method for monitoring the condition and determining the fault of the electronic belt scale as claimed in claim 3, wherein:

the two weight sensors are respectively positioned below two ends of the same metering carrier roller;

the weight threshold data of the loading state comprises: a load upper limit threshold and a load lower limit threshold;

confirming that the electronic belt scale is out of order comprises: under the loading state, the actual weight data of any one weight sensor is less than or equal to the lower load threshold, and the actual weight data of the other weight sensor is greater than or equal to the upper load threshold.

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