CN103853519B - Yield display system - Google Patents

Abstract

The invention proposes a production display system, including a computer host, a display, a photoelectric signal isolation amplifier and a photoelectric switch installed at the end of the production line; the photoelectric switch is used to generate signal changes when the product goes out of the line; the optical signal isolation amplifier is used to Receive the signal change of the photoelectric switch and amplify the signal and transmit it to the interface of the computer host; the computer host is used to scan the interface signal regularly, and when the input signal state changes, it is confirmed that there is a product out of the line; the display is used to confirm the product out of the line according to the computer host The quantity shows the yield. The output display system of the present invention changes the traditional PLC counting and LED display modes, greatly improves the working stability, adds practical functions, and can effectively adjust and prompt the production rhythm to meet the needs of actual use.

Description

Yield display system

technical field

The present invention relates to a production display system.

Background technique

The traditional output display is realized in the form of a combination of LED display board and PLC counter, but this form has the disadvantage of poor stability, which is not conducive to practical use.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a production display system different from the existing LED display board and PLC counter to improve stability.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is that the output display system includes a host computer, a display, a photoelectric signal isolation amplifier and a photoelectric switch installed at the end of the production line; the photoelectric switch is used to generate a signal when the product goes out change; the photoelectric signal isolation amplifier is used to receive the signal change of the photoelectric switch and amplify and transmit the signal to the interface of the computer host; the computer host is used to scan the interface signal regularly, and when the input signal state changes, it is confirmed that there is a product out of the line; the display is used It is used to display the output according to the number of products that are confirmed by the host computer.

A further technical solution is that the host computer is used to regularly scan the interface signal to perform the following steps: S1: call the dynamic library initialization interface, load the WDM underlying IO driver; S2: open the database, load the production information, read the Ini file, And load the port address and display configuration; S3: Initialize the user interface according to the configuration information; S4: Start the TIMER control, scan the interface status at a regular interval of 20 milliseconds, if the input signal status changes, confirm that there is a product out of the line, and execute step S5: Update the production data in the database, and execute S6 after completion; otherwise, return to step S4; S6: return to step S4.

A further technical solution is that in step S4 executed by the host computer, when the state of the input signal changes, it also judges the continuous stable time of the input signal, and only when the continuous stable time of the input signal is greater than the reference time, it is confirmed that there is The product is ready.

Preferably, the reference time is 2-4 seconds.

A further technical solution is that the production information includes historical data, production plan and shift information; after the host computer confirms that there are products coming out of the assembly line, it executes step S7: increase the output of the day and the current hour, and compare it with the planned output For comparison, calculate the remaining time and degree of completion, and execute step S5 after completion; the display is also used to display the daily output, current hourly output, remaining time, and degree of completion according to the data of the host computer.

A further technical solution is that the production information also includes a production rhythm adjustment strategy; the step S7 executed by the host computer also includes determining whether a reminder is needed according to the production rhythm adjustment strategy after calculating the remaining time and completion degree.

A further technical solution is to include a speaker; in step S7 executed by the host computer, when it is judged that a prompt is required, the speaker is controlled to play the voice prompt according to the output information attached to the database and whether the plan parameter is completed.

A further technical solution is to include a camera; the step S5 performed by the computer host also includes the step of controlling the camera to capture a picture of the product's outgoing state.

A further technical solution is that the photoelectric signal isolation amplifier includes an optocoupler, a switch tube and a relay; the input terminal of the optocoupler is connected to the photoelectric switch; the negative output terminal of the optocoupler is connected to the cathode of the switch tube, and the cathode of the switch tube is grounded ; The positive output terminal of the optocoupler is connected to the control pole of the switch tube; the positive output terminal of the optocoupler is also connected to the DC power supply terminal through a resistor; the anode of the switch tube is connected to the anode of a diode, and the cathode of the diode is connected to the DC power supply terminal; the coil of the relay is connected in parallel with the two ends of the diode, and the switch of the relay is connected with the host computer.

The output display system of the present invention changes the traditional PLC counting and LED display modes, greatly improves the working stability, adds practical functions, and can effectively adjust and prompt the production rhythm to meet the needs of actual use.

Description of drawings

Fig. 1 is a structural schematic diagram of the output display system of the present invention.

Fig. 2 is a control flow chart of the output display system of the present invention.

Fig. 3 is a schematic diagram of a photoelectric signal isolation amplifier of the output display system of the present invention.

detailed description

As shown in Figure 1, the output display system of the present invention includes a computer host, a display, a photoelectric signal isolation amplifier, a camera, a sound box, and a photoelectric switch installed at the end of the production line; the photoelectric switch is used to generate signal changes when the product goes out. The photoelectric signal isolation amplifier is used to receive the signal change of the photoelectric switch and amplifies and transmits the signal to the interface of the host computer (in this embodiment, the parallel port IO of the printing port); the host computer is used for timing scanning interface signals, when the input signal state changes When it is confirmed that there are products out of the line; the display is used to confirm the number of products out of the line according to the computer host to display the output.

Specifically, the execution flow of the host computer of the output display system of the present invention is shown in FIG. 2 , S1: call the dynamic library initialization interface, and load the bottom IO driver of WDM.

S2: Open the database, load the production information, read the Ini file, and load the port address and display configuration; the production information includes historical data, production plan and shift information; the production information also includes production rhythm adjustment strategies;

S3: Initialize the user interface according to the configuration information. The display displays the user interface.

S4: Start the TIMER control and scan the interface status at a regular interval of 20 milliseconds. If the state of the input signal changes, judge the continuous stability time of the input signal. When the continuous stability time of the input signal is greater than the reference time, it is confirmed that there is a product out of the line, and execute the steps S7, otherwise it is not sure that there is a product out of the line, return to step S4 to prepare for the next scan again; in this embodiment, the reference time is 2-4 seconds, preferably 3 seconds, and the stabilization time of the input signal is the stabilization time of turning on , in the present embodiment, the photoelectric switch detects the state that there is a product with the connected state of the host computer interface;

Step S7: Increase the output of the day and the current hourly output, compare it with the planned output, calculate the remaining time and degree of completion, and judge whether it is necessary to prompt according to the production rhythm adjustment strategy; Output information and whether to complete the planned parameters, control the speaker to play voice prompts; after completion, perform step S5; the display is also used to display the daily output, current hourly output, remaining time and completion degree according to the data of the computer host;

Step S5: Update the output data in the database, control the camera to take a picture of the product's outgoing status, so as to facilitate subsequent product quality inquiries; execute S6 after completion;

S6: return to step S4.

Among them, the structure of the photoelectric signal isolation amplifier is shown in Figure 3. The photoelectric signal isolation amplifier includes optocoupler U1, switch tube Q1 and relay K1; the input terminal of optocoupler U1 is connected with photoelectric switch (specifically, in this embodiment, the positive input terminal of optocoupler U1 is connected to 5V DC power supply, and the negative input terminal connected to the photoelectric switch); the negative output terminal of the optocoupler U1 is connected to the cathode of the switch tube Q1, and the cathode of the switch tube Q1 is grounded; the positive output terminal of the optocoupler U1 is connected to the control pole of the switch tube Q1; the positive output terminal of the optocoupler U1 The output terminal is also connected to the 12V DC power supply terminal through a resistor R1; the anode of the switch tube Q1 is connected to the anode of a diode D1, and the cathode of the diode D1 is connected to the DC power supply terminal; the coil of the relay K1 is connected in parallel to the two ends of the diode D1 terminal, the switch of relay K1 is connected with the host computer.

The above is only a preferred embodiment of the output display system of the present invention. Those skilled in the art can make deformations and simplifications according to the ideas of the present invention, such as canceling the camera and the steps of capturing pictures by the camera, canceling step S7 And when it is confirmed in step S4 that there is a product to go out of the line, step S5 is directly executed, the sound box and the corresponding processing steps are cancelled, or the step of judging the input signal continuous stable time in step S4 is cancelled. The function is weakened to some extent, but still belongs to the technical concept of the present invention as a whole, and should be included in the protection scope of the present invention. In addition, preferably, an automatic barcode scanner and video card can also be added at the end of the line to realize the retrospective inspection of product quality.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. The output display system is characterized in that: it includes a computer host, a display, a photoelectric signal isolation amplifier and a photoelectric switch for installation at the end of the production line; the photoelectric switch is used to generate signal changes when the product goes out of the line; the photoelectric signal isolation amplifier is used for Receive the signal change of the photoelectric switch and amplify the signal and transmit it to the interface of the computer host; the computer host is used to scan the interface signal regularly, and when the input signal state changes, it is confirmed that there is a product out of the line; the display is used to confirm the product out of the line according to the computer host The quantity shows the output; the host computer is used to regularly scan the interface signal to perform the following steps: S1: call the dynamic library initialization interface, load the WDM underlying IO driver; S2: open the database, load the production information, read the Ini file, and load Port address and display configuration; S3: Initialize the user interface according to the configuration information; S4: Start the TIMER control, scan the interface status at a regular interval of 20 milliseconds, if the input signal status changes, confirm that there is a product out of the line, and perform step S5: update the database Output data, execute S6 after completion; otherwise return to step S4; S6: return to step S4. 2. The output display system according to claim 1, characterized in that: in step S4 executed by the host computer, when the state of the input signal changes, it also judges the continuous stabilization time of the input signal, and when the input signal continues When the stabilization time is greater than the reference time, it is confirmed that there is a product out of the line. 3. The output display system according to claim 2, characterized in that: the reference time is 2-4 seconds. 4. The output display system according to claim 1, characterized in that: the production information includes historical data, production plan and shift information; after the host computer confirms that there is a product out of the line, it executes step S7: check the output of the day And the current hourly output is increased, and compared with the planned output, the remaining time and degree of completion are calculated, and step S5 is executed after completion; the display is also used to display the daily output, current hourly output, remaining time, and degree of completion according to the data of the host computer. 5. The output display system according to claim 4, characterized in that: the production information also includes a production rhythm adjustment strategy; the step S7 executed by the host computer also includes calculating the remaining time and completion degree, according to the production rhythm Adjust the strategy to determine whether to prompt. 6. The output display system according to claim 5, characterized in that: it also includes a speaker; in step S7 executed by the host computer, when it is judged that a prompt is required, according to the output information attached to the database and whether the planning parameters are completed, Control the speakers to play voice prompts. 7 . The output display system according to claim 1 , further comprising a camera; and the step S5 executed by the host computer further comprises a step of controlling the camera to capture a picture of the product exiting the production line. 8 . 8. The production display system according to claim 1, characterized in that: the photoelectric signal isolation amplifier comprises an optocoupler, a switching tube and a relay; the input end of the optocoupler is connected to the photoelectric switch; the negative output end of the optocoupler is connected to The cathode of the switch tube, and the cathode of the switch tube is grounded; the positive output terminal of the optocoupler is connected to the control pole of the switch tube; the positive output terminal of the optocoupler is also connected to the DC power supply terminal through a resistor; the anode of the switch tube is connected to a diode The anode is connected, and the cathode of the diode is connected to the DC power supply end; the coil of the relay is connected in parallel to the two ends of the diode, and the switch of the relay is connected to the computer host.