CN214702469U - Weighing system for electronic scale - Google Patents

Abstract

The utility model discloses a weighing system for electronic scale belongs to the electronic scale field. The system comprises a weighing module, a radio frequency reading module, a data acquisition terminal and an information management system, wherein the weighing module is used for acquiring the weight change of the electronic scale and converting the value of the weight change into a first digital signal; the radio frequency reading module is used for identifying the ID card to be detected and converting the data of the ID card into a second digital signal; the information management system is provided with a memory, the memory receives and stores a first digital signal and a second digital signal output by the data acquisition terminal, and the information management system is an MES system and/or an ERP system; the acquisition terminal simultaneously acquires ID card data of the staff and output workload of the staff in the data of the weighing system, and transmits the acquired data to the information management system, so that the defects of low efficiency and poor accuracy of manual input of staff information and output workload in the related technology are avoided, and the weighing efficiency and the accuracy of statistics are improved.

Description

Weighing system for electronic scale

Technical Field

The utility model belongs to the electronic scale field, concretely relates to a weighing system for electronic scale.

Background

In discrete manufacturing industries such as small home appliances, food production, automobiles, clothing, hardware, aquatic products and the like, salaries are generally checked and employee performance is evaluated by means of weighing. And in a specified period, weighing the output of the staff to be counted by using an electronic scale each time, recording the output into a form or a management system, and checking the wages and evaluating the performance of the staff by manually checking the total output weight of a certain staff (or a certain team) at the end of the period.

In the related art, a large number of statistical personnel are usually needed and the statistical result is repeatedly calculated to improve the accuracy of the statistical result and the matching degree of the staff and the output quantity thereof, and when the number of the staff to be detected is large or the statistical period is long, the weighing and statistical efficiency is low, and the accuracy of the statistical result is poor.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a weighing system for electronic scale has solved the problem of weighing and the inefficiency of statistics among the weighing system of current electronic scale.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a weighing system for an electronic scale, comprising:

the weighing module is used for acquiring weight change of a weighing platform of the electronic scale and converting a numerical value of the weight change into a first digital signal;

the radio frequency reading module is used for identifying an ID card to be detected and converting data of the ID card into a second digital signal;

a data acquisition terminal; and

the information management system is provided with a memory, the memory receives and stores the first digital signal and the second digital signal output by the data acquisition terminal, and the information management system is an MES system and/or an ERP system.

Preferably, the input end of the information management system is connected with the output end of the data acquisition terminal in a wired and/or wireless manner.

Preferably, the weighing module comprises:

the weighing sensor is used for acquiring weight change of the electronic scale and generating a first analog signal;

the first A/D conversion module converts the received first analog signal into a first digital signal.

Preferably, the display device further comprises a display module, wherein the display module comprises:

a display screen;

and the second A/D conversion module is electrically connected with the display screen and converts the second analog signal into a third digital signal.

Preferably, the display module further includes:

and the touch screen is used for inputting an operation instruction and is electrically connected with the second A/D conversion module.

Preferably, the display module further includes:

and the keyboard is used for inputting an operation instruction and is electrically connected with the second A/D conversion module.

Preferably, the display module sends the third digital signal to a data acquisition terminal, and the data acquisition terminal sends the received third digital signal to a memory in the information management system.

Compared with the prior art, the utility model has the advantages that: the data acquisition terminal simultaneously acquires ID card data of the staff and output workload of the staff, and transmits the acquired data to the information management system, the information management system is an MES system and/or an ERP system, so that the defects of low efficiency and poor accuracy of manual input of staff information and output workload in the related technology are overcome, and the weighing efficiency and the statistical accuracy are improved.

Drawings

FIG. 1 is a schematic diagram of a frame of an embodiment of the weighing system of the present invention;

FIG. 2 is a block diagram of a frame according to an embodiment of the present invention;

fig. 3 is a frame structure diagram of another embodiment of the present invention.

Reference numerals:

1-a weighing module; 101-a first a/D conversion module; 102-a load cell;

2-a data acquisition terminal; 201-a storage unit; 202-a control unit; 203-an arithmetic unit;

3-a radio frequency reading module;

4-a display module; 401-touch screen; 402-a second a/D conversion module; 403-display screen; 404-a keyboard;

5-an information management system; 501-memory.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A weighing system for an electronic scale according to the present invention is described in detail below with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1, the utility model discloses a weighing system for electronic scale, include: the system comprises a weighing module 1, a radio frequency reading module 3, a data acquisition terminal 2 and an information management system 5.

Specifically, the weighing module 1 includes a weighing sensor 102 and a first a/D conversion module 101, the weighing sensor 102 is a cantilever weighing sensor, the first a/D conversion module 101 is a 24-bit high-precision a/D conversion module HX711, wherein the weighing sensor 102 is disposed below a weighing platform of the electronic scale, a bridge circuit composed of strain gauges is disposed in the weighing sensor 102, when the weight of the weighing platform and an object on the weighing platform changes, the strain gauges change with the stress, so that the output voltage and the output current of the bridge circuit change, the weighing sensor 102 generates a corresponding first analog signal by collecting the weight change of the weighing platform, the output end of the weighing sensor 102 is connected to the output end of the first a/D conversion module 101, the output end of the first a/D conversion module 101 is connected to the input end of the data acquisition terminal 2, the first A/D conversion module 101 converts the output first analog signal into a first digital signal which can be recognized by the data acquisition terminal 2; the radio frequency reading module 3 adopts a 13.56MHz RF module, a radio frequency transceiving circuit is arranged in the RF module, a high-frequency chip of an ISO 14443A/B or ISO15693 standard electronic tag can be identified, when an ID card of the high-frequency chip of the ISO 14443A/B or ISO15693 standard electronic tag is close to an identification port of the RF module, the radio frequency transceiving circuit identifies data in the ID card and converts the data into a second digital signal which can be identified by the data acquisition terminal 2, and after the data acquisition terminal 2 receives and identifies the second digital signal, the first digital signal and the second digital signal which are identified later are bound and sent to the memory 501 of the information management system 5.

Specifically, the input of information management system 5 with data acquisition terminal 2's output has two kinds of connected modes, respectively through data interface wired connection and WIFI interface wireless connection, when information management system 5's input interface is nearer with data acquisition terminal 2's output interface, come the data of quick transmission data acquisition terminal 2 collection through wired connection, when information management system 5's input and data acquisition terminal 2's output are far away, perhaps when inconvenient connection transmission data line, through WIFI wireless transmission, reduce data transmission and receive geographical position's influence.

Specifically, the information management System 5 is an MES System (Manufacturing Execution System) and an ERP System (Enterprise Resource Planning System), and the MES System and the ERP System analyze, count and manage the collected weighing data, and use the data to facilitate calculation of staff salary, evaluation of worker performance, and balancing of various processes; therefore, the production conditions of each employee, each line and each workshop can be known more quickly and clearly. Production line optimization, capacity balancing and intelligent scheduling are pertinently achieved.

Specifically, the data acquisition terminal 2 is an ARM acquisition terminal, and is provided with a nxpi.mx6ul processor and a Linux operating system, the data acquisition terminal 2 includes a storage unit 201, a control unit 202 and an arithmetic unit 203, the storage unit 201 is equipped with a 256m.ddr3 random access memory, a storage space with sufficient capacity can acquire multiple sets of first digital signals and second digital signals, the arithmetic unit 203 binds the first digital signals and the second digital signals in the storage unit, so as to facilitate the management after transmission to the memory 501 of the information management system 5, the control unit 202 controls the retention and clearing of data in the storage unit 201 and controls the start and stop of the arithmetic unit 203, when a power failure or other accidents occur, the storage unit 201 retains the data before the power failure, and power on is recovered.

Specifically, the display module 4 of the electronic scale is a touch-enabled display, and includes a display screen 403, a touch screen 401 and a second a/D conversion module 402, where the display screen 403 is a TFT (Thin Film Transistor) liquid crystal display, and since each independent pixel can be controlled, there is a relatively fast response time, the touch screen 401 is a resistive display screen, the response is fast and the stability is relatively good, the second a/D conversion module 402 is a sixteen-bit high-precision AD conversion module LTC1606, the touch screen 401 is disposed under the display screen 403, the display screen 403 and the touch screen 401 are connected to the second a/D conversion module 402, so as to convert an instruction input on the touch screen 401 into a third digital signal, a transmission interface of the display module 4 is connected to a transmission interface of the data acquisition terminal 2, and send the third digital signal to the storage unit 201 of the data acquisition terminal 2, after the processing of the arithmetic unit 203, the third digital signal is associated with the first digital signal and the second digital signal, and the associated signals are transmitted to the second a/D conversion module 402 and the memory 501, the memory 501 stores the associated data, so that the management of the MES system and the ERP system is facilitated, the second a/D conversion module 402 converts the associated signals into analog signals, and the analog signals are displayed on the display screen 403, so that an operator can check the accuracy of the weighing result conveniently.

The operation method comprises the following steps:

the electronic scale is connected with an information management system 5 through a cable, a power supply of the electronic scale is connected, a weighing module 1, a data acquisition terminal 2, a radio frequency reading module 3 and a display module 4 in the electronic scale are electrified, an operation interface is displayed on a display screen 403, a manager places an ID card into a position which can be identified by the radio frequency reading module 3, the radio frequency reading module 3 reads ID card information and converts the ID card information into a second digital signal, the data acquisition terminal 2 receives the second digital signal and unlocks, the electronic scale is changed from a non-working state to a working state at the moment, a peeling button on the operation interface is clicked, the electronic scale only weighs the weight of an object on a weighing platform, the influence of factors such as the weight of the weighing platform is reduced, and a weighing process is selected; then the employee puts the ID card of the employee into a position recognizable by the radio frequency reading module 3, the radio frequency reading module 3 reads the ID card information and converts the ID card information into a second digital signal, the data acquisition terminal 2 receives the second digital signal and sends the second digital signal to the information management system 5, the information management system 5 identifies the signal and obtains information such as employee group, procedure, job price and completion condition corresponding to the ID card and sends the information to the second a/D conversion module 402 of the display module 4 through the data acquisition terminal 2, the second a/D conversion module 402 converts the information into an analog signal recognizable by the display screen 403, then the object to be weighed is put on the weighing platform of the electronic scale, the weighing sensor 102 converts the weight change of the weighing platform (i.e. the weight conversion of the object) into a first analog signal, the first a/D conversion module 101 converts the analog signal into a first digital signal recognizable by the data acquisition terminal 2, and by clicking the "confirm" button on the operation interface, the control unit 202 receives the command, controls the arithmetic unit 203 to bind the first digital signal with the second digital signal in the storage unit 201, and then the storage unit 201 sends the bound data to the memory 501 of the information management system 5. The staff workload is counted by a simple card swiping mode and an input button selecting mode, the weighing and counting efficiency is improved, and the staff workload is accurately bound with the ID.

Example two

The difference from the first embodiment is that:

in this embodiment, a control command is input by means of the keyboard 404, and an auxiliary selection command input button is input by means of the mouse, the keyboard 404 and the mouse are electrically connected to the second a/D conversion module 402, and the second a/D conversion module 402 converts analog signals of the keyboard 404 and the mouse into digital signals recognizable by the data acquisition terminal 2.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims (7)

1. A weighing system for an electronic scale, comprising:

the weighing module is used for acquiring weight change of a weighing platform of the electronic scale and converting a numerical value of the weight change into a first digital signal;

the radio frequency reading module is used for identifying an ID card to be detected and converting data of the ID card into a second digital signal;

a data acquisition terminal; and

the information management system is provided with a memory, the memory receives and stores the first digital signal and the second digital signal output by the data acquisition terminal, and the information management system is an MES system and/or an ERP system.

2. The weighing system of claim 1, wherein an input of the information management system is connected to an output of the data acquisition terminal by wire and/or wirelessly.

3. A weighing system for an electronic scale according to claim 1, wherein the weighing module comprises:

the weighing sensor is used for acquiring weight change of the electronic scale and generating a first analog signal;

the first A/D conversion module converts the received first analog signal into a first digital signal.

4. A weighing system for an electronic scale according to any one of claims 1 to 3, further comprising a display module, the display module comprising:

a display screen;

and the second A/D conversion module is electrically connected with the display screen and converts the second analog signal into a third digital signal.

5. The weighing system of claim 4, wherein the display module further comprises:

and the touch screen is used for inputting an operation instruction and is electrically connected with the second A/D conversion module.

6. The weighing system of claim 4, wherein the display module further comprises:

and the keyboard is used for inputting an operation instruction and is electrically connected with the second A/D conversion module.

7. The weighing system of claim 4, wherein the display module sends the third digital signal to a data acquisition terminal, and the data acquisition terminal sends the received third digital signal to a memory in the information management system.

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