InQCTurn on-site measurements
into quality data

InQC is suitable for QC teams that measure workpieces repeatedly during each shift using measuring instruments and must provide Statistical Process Control (SPC) data to customers. The app collects data from digital measuring instruments, creates X̄ (mean) and R (range) control charts, and calculates Cp/Cpk while measuring. Supervisors can see when measurements start to fall outside control limits or specifications.

In many factories, measurement checks still involve reading values from measuring instruments, recording them on inspection sheets, and then keying them into Excel to create graphs later. This process is slow and prone to errors such as lost or incorrectly entered data. Problems in the process are often only seen at the end of the shift. InQC moves the recording onto tablets at the production line. Values enter the system upon measurement, and graphs update every time a record is made.

InQC Users

• Production line inspectors (Operators) who measure workpieces at fixed points repeatedly during each shift
• Supervisors and QA/QC managers (Managers) who need to see good (Good) and bad (NG) results of all Operators
• Automotive parts factories, electronics factories, and factories that measure size or parameter values repeatedly, especially when customers require SPC documents or Cpk values

InQC works in 4 steps: create measurement job, connect measuring instrument, view results during measurement, and close job with data export. You set up the measurement job once, then measure throughout the shift without having to reset for each piece

1. 1

   Create measurement job

   Enter product name, part number, production line, and quantity. Set measurement point name and define specification limits USL / Normal / LSL and control limits UCL / LCL

2. 2

   Connect measuring instrument

   Connect gauge via USB or enter values using keyboard or voice according to package, then press START to begin data collection

3. 3

   View measurement results

   Graphs and X̄, R and SD values update every time data is recorded. Cp/Cpk calculations are performed when the sample size is complete. Out-of-control points or out-of-spec limits are visible on the measurement graph

4. 4

   Close the job and export data

   Record measurement jobs on InQC Server and review history. Download CSV or send to nimitFlow for quality report generation

InQC has 2 user roles: Operator (measurement operator) and Manager (supervisor). Operators create measurement jobs, measure workpieces, and view charts during measurement at the production line. Managers view a Good/NG summary dashboard for all Operators and can set the NG ratio threshold in the Pro package. Each measurement job specifies a shift (day or night), so supervisors can sort jobs by shift, Operator, or date

InQC integrates data acquisition, control charts, Cp/Cpk calculation, and data export into a single app. Some capabilities depend on the selected package

• Directly acquire measurement values from instruments — connect digital gauges via USB HID or USB Serial, and values enter the app without having to write down on paper and re-key
• Draw control charts during measurement — X̄ Bar Chart, R Chart, and S Chart update every time a value is obtained, along with UCL/LCL lines and USL/Normal/LSL limits
• Automatically calculate Cp/Cpk — select criteria of 1.33 or 1.67 according to customer requirements, the app calculates when the sample size is complete (Cp/Cpk Chart is available in Pro package and above)
• Define measurement points with position images — name measurement points and attach position images according to the selected package
• Record values by voice package — speak out readable numbers, then the app converts them into measured values. Suitable for jobs where both hands are busy or wearing gloves.
• Export and transfer data — download CSV files separated by measurement tasks or measurement points, or send to the workflow nimitFlow from within the app.

What does each chart type indicate?

Select charts based on what you want to know, such as whether the central value shifts, whether the spread widens, and whether the production process meets specifications.

Where is the data stored and transferred to?

InQC stores measurement tasks on the InQC Server, which can be either Cloud or on-premises (On-Premise) deployment. The On-Premise option is available in the Custom package. Each user has their own account and confirms their email address using OTP (one-time password).

If you need to connect to other systems in the factory, InQC sends data through nimitFlow or exports as CSV files. Connecting to ERP or MES (Enterprise Resource Planning and Manufacturing Execution System) is part of the Custom package, which we configure for you.

InQC Presentation V5 shows an example of connecting data to nimitFlow for generating quality reports, setting conditions and time periods for alerts via LINE or email, and defining measurement cycles. This is additional connection work that needs to be designed and tested according to project scope.

InQC is suitable for work that measures numeric values using repeatable measuring instruments at fixed points and must send SPC or Cpk values to customers. InQC is not suitable for inspecting workpieces by image as it is software, not a camera. Values used for graphs come from measuring instruments or values entered by users.

Capabilities according to package

In B.E. 2569, we provided an InQC set to a private company in the general manufacturing sector as a single unit. This set includes a 10-inch tablet, an ultrasonic thickness gauge for metal, and 1-year InQC usage rights along with user manuals. The sale was closed in September 2569. This set allows the front-line team to record thickness values and view X̄ / R control charts from a single tablet.

An ultrasonic thickness gauge (Ultrasonic Thickness Gauge) measures the thickness of a workpiece using high-frequency sound waves from one side of the workpiece, so it does not need to access the other side of the workpiece.

What we learned

Control charts can be used to make decisions only when the measured values are reliable. Measuring instruments must be suitable for the material of the workpiece. Instruments in this job are for metal. Measurement points, sample size, and frequency of sampling must be clearly defined before starting recording.

Organizing the measuring instruments, tablets, and software into a single set helps procurement teams and engineers avoid having to check individually whether each piece of equipment can be used together.

What does it mean to you?

Before starting to use InQC, we request your measuring instrument model, sample inspection sheets, and measurement points to check if the measuring instruments connect directly via USB or require InGauge. You can start from a single inspection point with the Freemium package and then expand to other points. If you purchase an annual license for this project, plan to renew before the expiration date to ensure continuous data recording.