Electronic scale measuring system

Abstract

The invention discloses an electronic scale measuring system, and relates to the technical field of electronic scales. The electronic scale measurement system comprises a dilution tank used for diluting a solution to be diluted; the number of the electronic scales is the same as that of the dilution tank supporting legs, the electronic scales correspond to the dilution tank supporting legs one to one, and the electronic scales are arranged below the dilution tank supporting legs and used for measuring the weight of a solution transmitted to the dilution tank supporting legs in the dilution tank; the controller is used for controlling the height of each dilution barrel groove supporting leg based on the measurement data of the electronic scale and sending the measurement data of the electronic scale to the upper computer; and the upper computer is used for receiving measurement data of the electronic scale and sending a control instruction to the controller. According to the electronic scale measuring system, the accuracy of data measured by the electronic scale is improved, and the accuracy of solution dilution is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic scales, and in particular to an electronic scale measurement system, device, equipment and readable storage medium. Background Art

[0002] At present, a large number of various chemicals are required in many industries. Among them, many chemicals need to use dilution equipment to dilute the chemicals from a high concentration to a low concentration, such as hydrofluoric acid, TMAH, etc. In the dilution equipment, an electronic scale is required to accurately measure the weight of each component, and then the accuracy of dilution can be ensured.

[0003] In the existing dilution equipment, weighing sensors are installed under the three feet of each dilution tank. These three weighing sensors are all converged and connected to a dedicated relay box. After the signals of the three weighing sensors are aggregated into a total weight signal, it is transmitted to the electronic scale controller. The electronic scale controller converts the total weight signal into a readable weight value for display, and transmits it to the programmable logic controller (PLC) of the dilution equipment.

[0004] During the operation of the dilution equipment, the load on the three weighing sensors is usually unbalanced due to the structure of the tank. Some weighing sensors will also have performance degradation due to long-term large loads, resulting in weight reading errors and poor dilution results. The existing electronic scale controller does not measure the signals directly transmitted from each weighing sensor, but the overall signal aggregated by the three weighing sensors. Therefore, it is impossible to judge the imbalance between the three weighing sensors, nor to detect the attenuation of a specific weighing sensor among the three weighing sensors. Therefore, until the next calibration of the electronic scale, it is difficult to find problems with the dilution equipment, making the system have a greater risk.

[0005] To solve the above problems, those skilled in the art usually connect each weighing sensor to an electronic scale controller separately. After calibrating each group of weighing sensors and the electronic scale controller, the weight can be read separately by using three electronic scale controllers. Manually or using the PLC program to continuously analyze the change amount between the three weights to judge the load imbalance and performance degradation of the weighing sensors. This method has a complex system, high cost, high debugging and maintenance difficulty, and poor stability.

[0006] Therefore, there is an urgent need for an electronic scale measurement system that can solve the above problems. Summary of the Invention

[0007] The object of the present invention is to provide an electronic scale measurement system. The electronic scales correspond one by one to the support feet of the dilution tank. The controller can, based on the measurement data of the electronic scales, identify whether each electronic scale is in a load imbalance state, and then can adjust the height of the support feet of the dilution tank to keep each electronic scale in a load stable state, thereby improving the accuracy of the measurement data of the electronic scales, and further ensuring the dilution accuracy of the solution to be diluted.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides an electronic scale measurement system, which includes:

[0010] A dilution bucket tank for diluting the solution to be diluted;

[0011] Electronic scales, the number of which is the same as the number of support feet of the dilution bucket tank, and the electronic scales correspond one-to-one with the support feet of the dilution bucket tank and are arranged below the support feet of the dilution bucket tank. The electronic scales are used to measure the weight of the solution in the dilution bucket tank transmitted to each support foot of the dilution bucket tank;

[0012] A controller for controlling the height of each support foot of the dilution bucket tank based on the measurement data of the electronic scales and transmitting the measurement data of the electronic scales to the host computer;

[0013] A host computer for receiving the measurement data of the electronic scales and sending control instructions to the controller.

[0014] In some embodiments, the controller includes a control chip and an airbag;

[0015] The airbag is arranged between the support foot of the dilution bucket tank and the electronic scale;

[0016] The control chip is used to adjust the air intake of the airbag according to the relationship between the measurement data of the electronic scale and a preset weight threshold, and further adjust the height of the support foot of the dilution bucket tank.

[0017] In some embodiments, the control chip is used to adjust the air intake of the airbag according to the relationship between the measurement data of the electronic scale and a preset weight threshold, and further adjust the height of the support foot of the dilution bucket tank, including:

[0018] When the measurement data of the electronic scale is greater than the preset weight threshold, the control chip is used to reduce the air intake of the airbag, and further lower the height of the support foot of the dilution bucket tank;

[0019] When the measurement data of the electronic scale is less than the preset weight threshold, the control chip is used to increase the air intake of the airbag, and further raise the height of the support foot of the dilution bucket tank.

[0020] In some embodiments, the controller further includes a communication module for transmitting the measurement data of the electronic scale to the host computer.

[0021] In some embodiments, the communication module is further configured to send an alarm message to the host computer when the measurement data of the electronic scale is greater than or less than a preset weight threshold.

[0022] In some embodiments, the host computer includes a computer and a programmable logic controller;

[0023] The computer is configured to send a control instruction to the programmable logic controller to modify the control logic of the programmable logic controller;

[0024] The programmable logic controller is configured to control the control chip based on the control instruction sent by the computer.

[0025] In some embodiments, the computer is further configured to receive the measurement data of the electronic scale and the alarm message sent by the control chip.

[0026] In some embodiments, the computer is configured to send a control instruction to the programmable logic controller to modify the control logic of the programmable logic controller, including:

[0027] The computer is configured to generate a control instruction according to the measurement data of the electronic scale and the alarm message, and send the control instruction to the programmable logic controller to modify the control logic of the programmable logic controller.

[0028] The beneficial effects of the present invention are as follows:

[0029] The electronic scale measurement system in the present invention includes: a dilution bucket tank for diluting the solution to be diluted; electronic scales, the number of which is the same as the number of support feet of the dilution bucket tank, and the electronic scales are in one-to-one correspondence with the support feet of the dilution bucket tank and are arranged below the support feet of the dilution bucket tank, and the electronic scales are configured to measure the weight of the solution in the dilution bucket tank transferred to each support foot of the dilution bucket tank; a controller configured to control the height of each support foot of the dilution bucket tank based on the measurement data of the electronic scales and send the measurement data of the electronic scales to the host computer; a host computer configured to receive the measurement data of the electronic scales and send a control instruction to the controller. The electronic scales are in one-to-one correspondence with the support feet of the dilution bucket tank. The controller can identify whether each electronic scale is in a load imbalance state based on the measurement data of the electronic scales, and then can adjust the height of the support feet of the dilution bucket tank to keep each electronic scale in a load stable state, thereby improving the accuracy of the measurement data of the electronic scales and further ensuring the dilution accuracy of the solution to be diluted.

[0030] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and implement it according to the content of the specification, the following describes the preferred embodiments of the present invention in detail in conjunction with the accompanying drawings. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of an electronic scale measurement system shown in an embodiment of the present invention;

[0032] Description of the Drawings: 1. Dilution barrel tank; 2. Electronic scale; 3. Control chip; 4. Air bag; 5. Computer; 6. Programmable logic controller; 7. Support feet of the dilution barrel tank. Detailed Embodiments

[0033] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0034] It should be noted that the references to "one embodiment", "embodiment", "example embodiment", etc. in this specification mean that the described embodiment may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Further, when combining specific features, structures or characteristics in an embodiment, it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments even without explicit description.

[0035] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] In some embodiments, as Figure 1 shown, a schematic structural diagram of an electronic scale 2 measurement system is provided. The electronic scale 2 measurement system includes: a dilution barrel tank 1 for diluting the solution to be diluted; an electronic scale 2, the number of the electronic scales 2 is the same as the number of the support feet 7 of the dilution barrel tank, the electronic scales 2 and the support feet 7 of the dilution barrel tank are in one-to-one correspondence and are arranged below the support feet 7 of the dilution barrel tank. The electronic scale 2 is used to measure the weight of the solution in the dilution barrel tank 1 transferred to each support foot 7 of the dilution barrel tank; a controller for controlling the height of each support foot 7 of the dilution barrel tank based on the measurement data of the electronic scale 2 and transmitting the measurement data of the electronic scale 2 to the upper computer; an upper computer for receiving the measurement data of the electronic scale 2 and sending a control instruction to the controller.

[0037] Specifically, during the process of diluting the solution, first add the solution to be diluted into the dilution tank 1, and then gradually add water to the dilution tank 1 to dilute the solution to be diluted. The electronic scale 2 will record the mass of the liquid in the dilution tank 1 in real time. When this mass reaches the set value, it proves that the solution to be diluted has been diluted. The above is only the solution dilution process under normal circumstances. However, the load of each electronic scale 2 may be unbalanced. Ideally, the measurement data of each electronic scale 2 should be the same. In actual situations, there may be deviations between the measurement data of each electronic scale 2. When the deviation between the measurement data of each electronic scale 2 is within the normal range, there is no need to adjust the height of the support feet 7 of each dilution tank. When the deviation between the measurement data of each electronic scale 2 exceeds the normal range, it means that the load of each electronic scale 2 is unbalanced. At this time, a control instruction needs to be sent to the controller through the host computer. The controller can then adjust the height of the support feet 7 of the dilution tank according to the control instruction, so that the deviation between the measurement data of each electronic scale 2 is within the normal range, achieving the load balance of each electronic scale 2, thereby increasing the accuracy of the measurement data of the electronic scale 2 and the accuracy of solution dilution. In addition, the controller will also send the measurement data of each electronic scale 2 to the host computer. The operation and maintenance personnel can customize control instructions in real time according to the measurement data of the electronic scale 2 displayed on the host computer and send them to the controller.

[0038] The electronic scale 2 measurement system in the above embodiment includes: a dilution tank 1 for diluting the solution to be diluted; electronic scales 2, the number of electronic scales 2 is the same as the number of support feet 7 of the dilution tank, and the electronic scales 2 are in one-to-one correspondence with the support feet 7 of the dilution tank and are arranged below the support feet 7 of the dilution tank. The electronic scales 2 are used to measure the weight of the solution in the dilution tank 1 transmitted to each support foot 7 of the dilution tank; a controller for controlling the height of each support foot 7 of the dilution tank based on the measurement data of the electronic scales 2 and transmitting the measurement data of the electronic scales 2 to the host computer; a host computer for receiving the measurement data of the electronic scales 2 and sending control instructions to the controller. The electronic scales 2 are in one-to-one correspondence with the support feet of the dilution tank 1. The controller can identify whether each electronic scale 2 is in a load unbalanced state based on the measurement data of the electronic scales 2, and then can adjust the height of the support feet 7 of the dilution tank to keep each electronic scale 2 in a load stable state, thereby improving the accuracy of the measurement data of the electronic scales 2 and ensuring the dilution accuracy of the solution to be diluted.

[0039] In another embodiment, as Figure 1 shown, the controller includes a control chip 3 and an airbag 4; the airbag 4 is arranged between the support foot 7 of the dilution tank and the electronic scale 2; the control chip 3 is used to adjust the air intake of the airbag 4 according to the relationship between the measurement data of the electronic scale 2 and the preset weight threshold, and then adjust the height of the support foot 7 of the dilution tank.

[0040] Optionally, the control chip 3 is used to reduce the intake of the airbag 4 when the measurement data of the electronic scale 2 is greater than the preset weight threshold, thereby reducing the height of the support feet 7 of the dilution tank; the control chip 3 is used to increase the intake of the airbag 4 when the measurement data of the electronic scale 2 is less than the preset weight threshold, thereby increasing the height of the support feet 7 of the dilution tank.

[0041] Specifically, the preset weight threshold can be preset by the worker based on the dilution requirement.

[0042] Exemplarily, if it is indicated in the dilution requirement that the diluted solution is 400 kg, and if there are 4 electronic scales 2, then the theoretical value of each electronic scale 2 should be 100 kg. The set weight threshold can include a high threshold of 105 kg and a low threshold of 95 kg. When the measurement data of a certain electronic scale 2 is greater than 105 kg, the intake of its corresponding airbag 4 is reduced, thereby reducing the height of the support feet 7 of its corresponding dilution tank until its measurement data is less than 105 kg; when the measurement data of a certain electronic scale 2 is less than 95 kg, the intake of its corresponding airbag 4 is increased, thereby increasing the height of the support feet 7 of its corresponding dilution tank until its measurement data is greater than 95 kg.

[0043] Optionally, the difference between the measurement data of each electronic scale 2 can also be calculated, and a difference threshold is set. When the difference between the measurement data of any two electronic scales 2 is greater than the difference threshold, it is determined that the electronic scale 2 is in a load imbalance state, and at this time, the intake of the airbag 4 is adjusted again to achieve the load balance of each electronic scale 2.

[0044] In addition, the controller further includes a communication module. The communication module is used to send the measurement data of the electronic scale 2 to the host computer; the communication module is also used to send an alarm message to the host computer when the measurement data of the electronic scale 2 is greater than or less than the preset weight threshold.

[0045] Exemplarily, to implement the above functions, the control chip 3 can include a 2.5 / 2.1 mm power socket, input 24V / 1A DC power supply. The DC power has less noise, which can improve the measurement accuracy of the measurement system of the electronic scale 2; it also includes 4-channel weighing sensor access interfaces; the interface pins are in a 5-wire system, and the pin definitions are +5V, signal +, signal -, signal ground, and shield ground respectively; it also includes a relay interface for cooperating with the measurement data to output alarm control information; it also includes one path each of RS485, network port, and USB interface. Among them, 485 uses the modbus RTU protocol and can be connected to the PLC; the network port defaults to the UDP protocol and can output measurement data and operating parameters regularly; the serial port (USB type-c interface) can be used for remote firmware upgrade or as a common RS232; the function of the USB port is a reserved function and can provide different services according to requirements.

[0046] In another embodiment, as Figure 1 shown, the host computer includes a computer 5 and a programmable logic controller 6; the computer 5 is configured to send control instructions to the programmable logic controller 6 to modify the control logic of the programmable logic controller 6; the programmable logic controller 6 is configured to control the control chip 3 based on the control instructions sent by the computer 5.

[0047] Optionally, the computer 5 is further configured to receive the measurement data and alarm information of the electronic scale 2 sent by the control chip 3.

[0048] Specifically, the computer 5 is configured to generate control instructions according to the measurement data and alarm information of the electronic scale 2, and send control instructions to the programmable logic controller 6 to modify the control logic of the programmable logic controller 6.

[0049] Exemplarily, the computer 5 is mainly used to read the weight data and alarm information of the electronic scale 2, and for the calibration of relevant parameters, such as weight threshold, device name, serial number, IP address information, refresh time interval, necessary parameters for 485 communication, etc.; the computer 5 includes an instrument data display interface, which can display the weight data and total weight of each electronic scale 2 in real time, display alarm information; and display an operation interface. For example, clicking "Connect Device" can open the 485 serial port, and clicking again can close the 485 serial port; clicking "Start Acquisition" starts to read the weight data of each electronic scale 2 through the Modbus Rtu communication protocol; clicking "System Settings" for basic information settings; clicking "Device Calibration" to open the interface for configuring and calibrating the sensor. The computer 5 also includes a system settings interface, which can set the necessary parameters for modbus communication, device information, network information, and the current main function is for 485 requirements, and functions such as network and 232 need to be customized according to later requirements. The computer 5 also includes a calibration interface, which can independently configure and calibrate the sensors of each electronic scale 2. First, select the electronic scale 2 to be configured, and then fill in the corresponding parameters for setting, including range, sensitivity; set alarm threshold and other information.

[0050] The technical features of the above embodiments can be arbitrarily integrated. For the sake of brevity of description, not all possible integrations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the integration of these technical features, it should be considered as the scope recorded in this specification.

[0051] The above embodiments only illustrate several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An electronic scale measurement system, characterized in that, The electronic scale measurement system includes: A dilution bucket tank for diluting the solution to be diluted; Electronic scales, the number of which is the same as the number of the support feet of the dilution bucket tank. The electronic scales correspond to the support feet of the dilution bucket tank one by one and are arranged below the support feet of the dilution bucket tank. The electronic scales are used to measure the weight of the solution in the dilution bucket tank transferred to each of the support feet of the dilution bucket tank; A controller for controlling the height of each of the support feet of the dilution bucket tank based on the measurement data of the electronic scales and transmitting the measurement data of the electronic scales to the host computer; A host computer for receiving the measurement data of the electronic scales and sending control instructions to the controller.

2. The electronic scale measurement system according to claim 1, wherein, The controller includes a control chip and an air bag; The air bag is arranged between the support feet of the dilution bucket tank and the electronic scales; The control chip is used to adjust the air intake of the air bag according to the relationship between the measurement data of the electronic scales and a preset weight threshold, and thus adjust the height of the support feet of the dilution bucket tank.

3. The electronic scale measurement system according to claim 2, characterized in that, The control chip is used to adjust the air intake of the air bag according to the relationship between the measurement data of the electronic scales and a preset weight threshold, and thus adjust the height of the support feet of the dilution bucket tank, including: When the measurement data of the electronic scales is greater than the preset weight threshold, the control chip is used to reduce the air intake of the air bag, and thus lower the height of the support feet of the dilution bucket tank; When the measurement data of the electronic scales is less than the preset weight threshold, the control chip is used to increase the air intake of the air bag, and thus raise the height of the support feet of the dilution bucket tank.

4. The electronic scale measurement system according to claim 3, characterized in that, The controller further includes a communication module for transmitting the measurement data of the electronic scales to the host computer.

5. The electronic scale measurement system according to claim 4, wherein, The communication module is further used to send an alarm message to the host computer when the measurement data of the electronic scales is greater than or less than the preset weight threshold.

6. The electronic scale measurement system according to claim 5, characterized in that, The host computer includes a computer and a programmable logic controller; The computer is used to send control instructions to the programmable logic controller to modify the control logic of the programmable logic controller; The programmable logic controller is used to control the control chip based on the control instructions sent by the computer.

7. The electronic scale measurement system according to any one of claims 6, characterized in that The computer is further used to receive the measurement data of the electronic scales and the alarm message sent by the control chip.

8. The electronic scale measurement system according to any one of claims 7, characterized in that, The computer is used to send control instructions to the programmable logic controller to modify the control logic of the programmable logic controller, including: The computer is used to generate control instructions according to the measurement data of the electronic scales and the alarm message, and send the control instructions to the programmable logic controller to modify the control logic of the programmable logic controller.

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