TagMatiks Wedge - iOS Help

Understanding Filters

 
Summary:

With the ever-growing amount of RFID tags and labels being attached to assets and inventory, it may be important to just pick up the ones that are important to you. TagMatiks Wedge includes various filtering options so that you can get just the right amount of data appropriate for your use cases.

In order to adjust the filters, you can either do that by selecting Application Configuration -> Filters or clicking on the filters icon directly from the Inventory page.

If you need to clear out the filters, press the Reset button to start from scratch.

Once you select the GS1 filter, provided additional filters like GS1 keys, Company Prefix length, Company Prefix, Tag Size, Serial Number, Reference Number (It will vary depending on the GS1 key selected).

The filters are quite extensive and include:
  • EPC Filter using GS1 keys
  • EPC Filter using Pattern
  • User Memory Filter using GS1 Fields
  • User Memory Filter using Pattern
  • User Memory Filter using Custom Fields
  • TID Filter using Manufacture and Model
  • RSSI Filter
  • Sensor Type Filter

Due to the nature of reading RFID tag memory banks, filters for the User and TID memory banks may lead to slower throughput (number of tags read over a period of time) as it requires additional processing.

Figure 1: Enable EPC Filter
A. EPC Filter using GS1 keys

The primary value returned from a UHF RFID tag is the EPC (Electronic Product Code) value. This is a mandatory license plate that should be unique for each RFID tag for your use case.

The structure of how this EPC is formatted can be dependent on many factors. GS1 has designed various standards for different business applications. These standards make is easy for companies or organizations sharing supply chains to have a common way to structure the RFID tag data content.

TagMatiks Wedge supports all GS1 TDS as of version __; however, you can see a sample list below.

  1. SGTIN: Serialized Global Trade Item Number
  2. SSCC: Serial Shipping Container Code
  3. SGLN : Global Location Number With or Without Extension
  4. GRAI: Global Returnable Asset Identifier
  5. GIAI: Global Individual Asset Identifier
  6. GSRN: Global Service Relation Number - Recipient
  7. GSRNP: Global Service Relation Number - Provider
  8. GDTI: Global Document Type Identifier
  9. CPI:Component/Part Identifier
  10. SGCN: Serialized Global Coupon Number
  11. ITIP: Individual Trade Item Piece
Figure 2: EPC Filter For SGTIN

To enable an EPC Filter using a GS1 Key, select the GS1 option under EPC Memory Filters and then choose the GS1 Key Identifier from the dropdown list. Depending on the GS1 Key Identifier that you select, additional filters may be exposed. For example, if you choose the SGTIN GS1 Filter, the following options will be enable based on selection:

  • Company Prefix Length
  • Company Prefix
  • Tag Size
  • Item Reference
  • Serial

Once the company prefix length is selected, other filters such the company prefix and item reference details from GTIN will be exposed.

B. EPC Filter using Pattern

Often time, you may desire to filter an EPC value of an RFID tag based on your own patterns. TagMatiks Wedge supports the following custom pattern options for the EPC memory bank

  • Prefix
  • Suffix
  • Contains
  • Offset

Example: If the Prefix filter is selected and the value AB is entered, only tags that have EPCs that start with AB will be captured.

C. User Memory Filter using GS1 Fields

Certain RFID tags may contain an extended memory bank called the User Memory bank where user specific content can be stored. Just like with the EPC memory bank, GS1 has various standards on storing content on the User Memory bank depending on use cases and applications.

To use the User Memory Bank Filter with GS1 Fields, select the User Memory Bank Checkbox and then select the GS1 option.

Figure 3: EPC Filter with Pattern
Figure 4: User Filter with GS1
D. User Memory Filter using Pattern

Like the EPC memory bank, you may desire to filter based on the User Memory bank value of an RFID tag based on your own patterns. TagMatiks Wedge supports the following custom pattern options for the User memory bank

  • Prefix
  • Suffix
  • Contains
  • Offset

Example: If the Prefix filter is selected and the value AB is entered, only tags that have User Memory Banks that start with AB will be captured.

E. User Memory Filter using Custom Fields

For certain applications, business specific content may be stored in the user memory bank. These could include data such as a serial number or a part number. The custom fields option can be used to parse this information out from the memory bank.

To use this option, select the User Memory Bank filter and then select the custom filter option. After that, enter the value for the separator between your fields.

Figure 5: User Filter with Pattern

Enter the fields for assigning the decoded value. There is no limit on the number of fields. You can also delete the fields that are no longer needed.

Figure 6: User Filter with Custom Field - Separator
Figure 7: User Filter with Custom Field
How does this logic of custom decoding work?

Once after reading the user memory bank values for each RFID tag (in hexadecimal), TagMatiks Wedge will automatically convert them into readable ASCII values.

F. TID Filter using Manufacture and Model

The TID memory bank is a memory bank that is factory encoded and locked. However, this memory bank holds important information about the RFID chip. If you enable this filter, you can read the manufacturer and chip model of the RFID tag.

Figure 8: TID Filter
Figure 9: TID Filter with Manufacturer
G. RSSI Filter

When reading an RFID tag, one of the values which can be collected is the RSSI (receiving strength signal indicator). This is an approximate value that can be used to focus on tags that are closer or further away from the RFID reader.

In TagMatiks Wedge, you can use the RSSI Low and High Limit value to filter RFID tags. Be careful when setting this value as it can impact what tags are being collected.

Figure 10: TID Filter with Model
Figure 11: RSSI Filter