Assembly line monitoring equipment

Abstract

The utility model provides assembly line monitoring equipment, which comprises an equipment body and an employee ID card, the top of the equipment body is provided with a card reading area and keys, the front side of the equipment body is provided with a display screen, the equipment body is internally provided with a control unit, an infrared counting circuit and an NG counting circuit, the equipment body is provided with an infrared counter and an NG counting interface, and the display screen is provided with a display screen. A card reader corresponding to the card reading area is arranged in the equipment body, the card reader is connected with the control unit, the infrared counter is connected with the control unit through an infrared counting circuit, the NG counting interface is connected with the control unit through an NG counting circuit, and the control unit is electrically connected with the display screen and the keys. According to the utility model, normal products and defective products are respectively metered through infrared counting and NG counting, separate metering statistics and use are more convenient, the workload of each worker can be accurately counted in real time through cooperation of an employee ID card and a card reader, use is simpler, more efficient and more intelligent, and statistical information and the like can be more visually displayed through a display screen.

Description

Technical Field

[0001] The utility model relates to the field of assembly lines, in particular to an assembly line monitoring device. Background Art

[0002] The assembly line, also known as the production line, is an industrial production method in which each production unit focuses on a specific task to improve efficiency and output. Each worker on the assembly line is individually counted, and their work is measured and compensated based on their workload. Therefore, every assembly line requires measurement statistics for each worker or workstation.

[0003] Existing assembly line measurement and statistics generally use counters, such as infrared induction counters, which use infrared counting to count the workload of each worker or workstation. However, this method has some problems. For example, the counter only counts the total number, but in reality, there are often defective products (NG products), which are also counted. These can only be reported and subtracted after work, making the statistical work more cumbersome. In addition, the counter simply corresponds to one workstation, and the same workstation may be shared by multiple people due to different shifts such as morning and evening shifts. This can easily cause statistical confusion and is very inconvenient to use. In addition, for some electronic and electrical products, they need to be tested with other test instruments and the test results are counted together. Existing counters cannot adapt to this and are difficult to meet usage needs. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the utility model proposes a production line monitoring device.

[0005] A production line monitoring device includes a device body and an employee ID card. A card reading area and buttons are provided on the top of the device body, a display screen is provided on the front side of the device body, a control unit, an infrared counting circuit and an NG counting circuit are provided in the device body, an infrared counter and an NG counting interface are provided on the device body, a card reader is provided in the device body corresponding to the card reading area, the card reader is connected to the control unit, the infrared counter is connected to the control unit via the infrared counting circuit, the NG counting interface is connected to the control unit via the NG counting circuit, and the control unit is electrically connected to the display screen and the buttons.

[0006] Based on the above, the infrared counting circuit includes an infrared counting slot JP3, a resistor R13 and a resistor R14. One end of the resistor R13 is connected to the power supply, the other end of the resistor R13 is connected to the control unit, and is connected to pin 2 of the infrared counting slot JP3 through the resistor R14. Pin 1 of the infrared counting slot JP3 is connected to the power supply and pin 3 is grounded. The infrared counting slot JP3 is used to connect the infrared counter.

[0007] Based on the above, the NG counting circuit includes resistor R20, resistor R18, capacitor C8 and optocoupler IC1. The input end of the input side of the optocoupler IC1 is connected to pin 2 of the NG counting interface JP_DIN1, and the output end of the input side of the optocoupler IC1 is connected to pin 1 of the NG counting interface JP_DIN1 through resistor R20; the input end of the output side of the optocoupler IC1 is connected to the power supply through resistor R18, capacitor C8 is connected in parallel at both ends of the resistor R18, and the output end of the output side of the optocoupler IC1 is grounded; the input end of the output side of the optocoupler IC1 is also connected to the control unit.

[0008] Based on the above, a voltage detection interface is provided on the device body, and a voltage detection circuit is provided in the device body. The voltage detection circuit includes resistors R19 and R21. One end of the resistor R19 is connected to pin 1 of the voltage detection interface JP_AD1, and the other end of the resistor R19 is connected to the control unit and grounded through the resistor R20. Pin 2 of the voltage detection interface JP_AD1 is grounded.

[0009] Based on the above, a Hall detection unit is provided on the device body, and a Hall detection circuit is provided in the device body. The Hall detection circuit includes a Hall detection unit slot JP4, a resistor R16 and a resistor R17. One end of the resistor R16 is connected to the power supply, and the other end of the resistor R16 is connected to the control unit and is connected to pin 2 of the Hall detection unit slot JP4 through the resistor R17. Pin 1 of the Hall detection unit slot JP4 is connected to the power supply and pin 3 is grounded. The Hall detection unit slot JP4 is used to connect the Hall detection unit, and the Hall detection unit is a Hall sensor.

[0010] Based on the above, a control output interface JP_DOUT1 is provided on the device body, and a control output circuit is provided inside the device body. The control output circuit includes a relay JK1, a MOS transistor Q1, resistors R22 and R23. The gate of the MOS transistor Q1 is connected to the control unit through the resistor R22 and to ground through the resistor R23. The source of the MOS transistor Q1 is grounded, and the drain of the MOS transistor Q1 is connected to the power supply through the coil of the relay JK1. The contacts of the relay JK1 are respectively connected to the control output interface JP_DOUT1.

[0011] Based on the above, a working indicator light is set on the top of the device body. The working indicator light is an LED lamp. The anode of the LED lamp is connected to the control unit and the cathode is grounded.

[0012] The present invention has substantial features and progress over the prior art. Specifically, the infrared counting and NG counting of the present invention respectively measure normal products and defective products, and separate measurement and statistics are more convenient to use. Moreover, the process of statistically reporting NG products is very beneficial to improving the straight-through rate of the assembly line. Through the cooperation of employee ID cards and card readers, the workload of each worker can be accurately counted. The use is simpler and more efficient, and the display screen can display statistical information more intuitively, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a circuit structure diagram of the control unit of the utility model.

[0015] Figure 3 This is a schematic diagram of the circuit structure of the infrared counting system of the utility model.

[0016] Figure 4 It is a schematic diagram of the circuit structure of the NG counting system of the utility model.

[0017] Figure 5 It is a circuit structure diagram of the voltage detection circuit of the utility model.

[0018] Figure 6 The utility model is a schematic diagram of the circuit structure of the Hall detection circuit.

[0019] Figure 7 It is a circuit structure diagram of the control output circuit of the utility model.

[0020] Figure 8 It is a circuit structure diagram of the serial communication circuit of the utility model.

[0021] Figure 9 It is a circuit structure diagram of the card reading circuit of the utility model.

[0022] Figure 10 The utility model is a circuit structure diagram of the key circuit.

[0023] Explanation of the accompanying symbols: 1. Equipment body; 2. Power switch; 3. Employee ID card; 4. Button; 5. Working indicator light; 6. Display screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1As shown, a production line monitoring device includes a device body 1 and an employee ID card 4. A card reading area and a button 4 are provided on the top of the device body 1, a display screen 6 is provided on the front side of the device body 1, a control unit, an infrared counting circuit and an NG counting circuit are provided in the device body 1, an infrared counter and an NG counting interface are provided on the device body 1, a card reader is provided in the device body corresponding to the card reading area, the card reader is connected to the control unit, the infrared counter is connected to the control unit through the infrared counting circuit, the NG counting interface is connected to the control unit through the NG counting circuit, and the control unit is electrically connected to the display screen and the button 4.

[0026] In practice, a power switch 2 is also provided on the top of the device body 1 to control the power supply of the entire monitoring device. In this embodiment, there are six other buttons 4: two for "Count +" and "Count -" for normal products, allowing for manual increment or decrement when infrared counters fail to measure normal products; two for "Count +" and "Count -" for NG products, allowing for manual increment or decrement when NG counters fail to measure NG products; and the last two buttons are "Set" buttons, used to perform setting operations. The employee ID card is a radio frequency card, and the card reader is a 13.56MHz MIFARE radio frequency card reader, model RC522. During use, after the monitoring device is powered on by the power switch, the control unit communicates with the host computer. The employee ID card is placed in the card reading area on the top of the device body. The control unit receives the card reader's reading information, associates the normal product information counted by the infrared counter with the NG product information counted by the NG counter, and transmits it to the host computer, such as a supervisor's computer. The control unit also displays the card reading information and various statistical information in real time on the display screen. All interfaces on the device body are located on the back side of the device body. Figure 1 Not shown.

[0027] In this embodiment, Figure 2 As shown, the control unit is a single chip microcomputer U1, model ESP32-S, which has its own wireless communication WiFi module, etc., and is connected to the host computer for wireless communication. Pin 8 of the single chip microcomputer U1 is used to connect the working indicator light 5. In this embodiment, the working indicator light 5 is an LED light. The anode of the LED light is connected to pin 8 of the single chip microcomputer U1 and the cathode is grounded. After the device is powered on, it lights up and indicates the working status. Figure 9 The figure shows the card reading circuit, and the interface JP_RFID is used to connect to the card reader. Figure 10 The key circuit is connected to the control unit. In reality, the device body is also equipped with a power plug for connecting to a power source. The device body is also equipped with a voltage conversion circuit for converting voltages to power various components. This power conversion circuit is a common power conversion circuit in the prior art that converts AC power to 5V or 3.3V, so I will not elaborate on it here.

[0028] Specifically, such as Figure 3 As shown, the infrared counting circuit includes infrared counting slot JP3, resistors R13, and resistors R14. One end of resistor R13 is connected to the power supply, while the other end is connected to the control unit and, through resistor R14, to pin 2 of infrared counting slot JP3. Pin 1 of infrared counting slot JP3 is connected to the power supply, and pin 3 is grounded. Infrared counting slot JP3 is used to connect to the infrared counter. After a normal product is detected by the infrared counter, the control unit calculates the count information of the normal products, associates this count information with the card reading information, and sends it to the host computer. The count information is also displayed on the display screen.

[0029] like Figure 4 As shown, the NG counting circuit consists of resistors R20 and R18, capacitor C8, and optocoupler IC1. The input of optocoupler IC1 is connected to pin 2 of the NG counting interface JP_DIN1, while the output of optocoupler IC1 is connected to pin 1 of the NG counting interface JP_DIN1 via resistor R20. The input of optocoupler IC1 is connected to the power supply via resistor R18, with capacitor C8 connected in parallel across resistor R18. The output of optocoupler IC1 is grounded, and the input of optocoupler IC1 is also connected to the control unit. In practice, the NG counting interface is used to connect to an external testing device. If any problems are found during testing of target products on the assembly line, such as transformers, this testing device directly sends the detected error information through the NG counting interface, thereby counting the number of NG products.

[0030] like Figure 5 As shown, the device body is equipped with a voltage detection interface and a voltage detection circuit. The voltage detection circuit includes resistors R19 and R21. One end of resistor R19 is connected to pin 1 of the voltage detection interface JP_AD1. The other end of resistor R19 is connected to the control unit and grounded through resistor R20. Pin 2 of the voltage detection interface JP_AD1 is grounded. The voltage detection interface JP_AD1 is used to connect to target products requiring voltage detection. Voltage detection is performed through resistor voltage division. The control unit collects the detection information and simultaneously transmits and displays it in association with the counted products and count information.

[0031] like Figure 6As shown, the device body is equipped with a Hall detection unit and a Hall detection circuit. The Hall detection circuit includes Hall detection unit slot JP4, resistors R16, and resistors R17. One end of resistor R16 is connected to the power supply, the other end of resistor R16 is connected to the control unit, and is connected to pin 2 of Hall detection unit slot JP4 through resistor R17. Pin 1 of Hall detection unit slot JP4 is connected to the power supply, and pin 3 is grounded. Hall detection unit slot JP4 is used to connect the Hall detection unit, which is a Hall sensor. For some switching signals, such as the detection of foot switches, the switch signal is detected by the Hall sensor. The control unit collects the detection information and simultaneously associates it with the counted products and counting information for transmission and display.

[0032] like Figure 7 As shown, the device body is provided with a control output interface JP_DOUT1, and the device body is equipped with a control output circuit. The control output circuit includes a relay JK1, a MOS transistor Q1, and resistors R22 and R23. The gate of MOS transistor Q1 is connected to the control unit through resistor R22 and to ground through resistor R23. The source of MOS transistor Q1 is grounded, and the drain of MOS transistor Q1 is connected to the power supply through the coil of relay JK1. The contacts of relay JK1 are respectively connected to the control output interface JP_DOUT1. The control unit controls the on-off of MOS transistor Q1, thereby controlling the on-off of the relay coil, and further controlling the on-off of the relay contacts. The relay contacts are used to connect to equipment that requires switching quantity or switching frequency testing.

[0033] Preferably, a communication interface J1 is provided on the device body, and a serial communication circuit is provided in the device body. In this embodiment, it is a 232 interface circuit, and U4 is an RS232 transceiver, model SP3232EEY-L / TR. Figure 8 As shown, it is used to connect testing instruments and equipment that require serial communication. In reality, this serial communication circuit can be coordinated with the control output circuit. For example, for some equipment without switches, such as transformers, the control output interface JP_DOUT1 is used to connect the circuit of the product under test and perform on-off control. At the same time, the on-site testing instrument tests the product under test. The testing instrument connects to the control unit through the communication interface J1 for serial communication and transmits the test results back to the control unit. Together, they can control and test the product under test.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A production line monitoring device, characterized by: It includes a device body and an employee ID card. A card reading area and buttons are provided on the top of the device body, a display screen is provided on the front side of the device body, a control unit, an infrared counting circuit and an NG counting circuit are provided in the device body, an infrared counter and an NG counting interface are provided on the device body, a card reader is provided in the device body corresponding to the card reading area, the card reader is connected to the control unit, the infrared counter is connected to the control unit through the infrared counting circuit, the NG counting interface is connected to the control unit through the NG counting circuit, and the control unit is electrically connected to the display screen and the buttons.

2. The assembly line monitoring device according to claim 1, characterized in that: The infrared counting circuit includes an infrared counting slot JP3, a resistor R13 and a resistor R14. One end of the resistor R13 is connected to the power supply, the other end of the resistor R13 is connected to the control unit, and is connected to pin 2 of the infrared counting slot JP3 through the resistor R14. Pin 1 of the infrared counting slot JP3 is connected to the power supply and pin 3 is grounded. The infrared counting slot JP3 is used to connect the infrared counter.

3. The assembly line monitoring device according to claim 1, characterized in that: The NG counting circuit includes resistor R20, resistor R18, capacitor C8 and optocoupler IC1. The input end of the input side of the optocoupler IC1 is connected to pin 2 of the NG counting interface JP_DIN1, and the output end of the input side of the optocoupler IC1 is connected to pin 1 of the NG counting interface JP_DIN1 through resistor R20; the input end of the output side of the optocoupler IC1 is connected to the power supply through resistor R18, capacitor C8 is connected in parallel at both ends of the resistor R18, and the output end of the output side of the optocoupler IC1 is grounded; the input end of the output side of the optocoupler IC1 is also connected to the control unit.

4. The assembly line monitoring device according to claim 1, characterized in that: A voltage detection interface is provided on the device body, and a voltage detection circuit is provided inside the device body. The voltage detection circuit includes resistors R19 and R21. One end of the resistor R19 is connected to pin 1 of the voltage detection interface JP_AD1, and the other end of the resistor R19 is connected to the control unit and grounded through resistor R20. Pin 2 of the voltage detection interface JP_AD1 is grounded.

5. The assembly line monitoring device according to claim 1, characterized in that: A Hall detection unit is provided on the device body, and a Hall detection circuit is provided in the device body. The Hall detection circuit includes a Hall detection unit slot JP4, a resistor R16 and a resistor R17. One end of the resistor R16 is connected to the power supply, and the other end of the resistor R16 is connected to the control unit and is connected to pin 2 of the Hall detection unit slot JP4 through the resistor R17. Pin 1 of the Hall detection unit slot JP4 is connected to the power supply and pin 3 is grounded. The Hall detection unit slot JP4 is used to connect the Hall detection unit, which is a Hall sensor.

6. The assembly line monitoring device according to claim 1, characterized in that: The device body is provided with a control output interface JP_DOUT1, and a control output circuit is provided inside the device body. The control output circuit includes a relay JK1, a MOS transistor Q1, resistors R22 and R23. The gate of the MOS transistor Q1 is connected to the control unit through the resistor R22 and to ground through the resistor R23. The source of the MOS transistor Q1 is grounded, and the drain of the MOS transistor Q1 is connected to the power supply through the coil of the relay JK1. The contacts of the relay JK1 are respectively connected to the control output interface JP_DOUT1.

7. The assembly line monitoring device according to claim 1, characterized in that: A working indicator light is provided on the top of the device body. The working indicator light is an LED light. The anode of the LED light is connected to the control unit and the cathode is grounded.

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