| Readable line width for 2D | 0.127 mm |
| Smallest readable line width for 1D | 0.06 mm |
| 1D-code reading distance, max. | 30 to 890 mm |
1D code/ 2D code readers
1D and 2D-code readers, also called – among other things – bar code scanners, bar code readers, image-based ID readers or ID readers, are readers for capturing 1D- and 2D-codes. ... Read more
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| Readable line width for 2D | 0.1 mm |
| Smallest readable line width for 1D | 0.1 mm |
| 1D-code reading distance, max. | 80 to 4,400 mm |
| Applications | Smart Factory |
| Readable line width for 2D | 0.1 mm |
| Smallest readable line width for 1D | 0.1 mm |
| Reading speed | 43 to 60 Scans/sec |
| Readable line width for 2D | 0.1 mm |
| Smallest readable line width for 1D | 0.1 mm |
| Reading speed | 60 Scans/sec |
| Readable line width for 2D | 0.5 to 0.76 mm |
| Smallest readable line width for 1D | 0.25 to 0.38 mm |
| 1D-code reading distance, max. | 860 to 1,670 mm |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 120 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 120 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 220 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 220 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 120 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 220 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 360 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
| 2D code reading distance, max. | 120 mm |
| Transmitted light | LED, red |
| Code types | 2/5 Interleaved; Aztec; Codabar; Code 128; Code 32; Code 39; Code 93; Data Matrix Code; EAN 128; EAN 8/13; GS1 Databar; GS1 Databar Omnidirectional; GS1 Databar QR Code; GS1 Databar Stacked; PDF417; Pharma Code; QR Code; UPC |
How barcode scanners work
The operating principle of barcode scanners is essentially the same. The surface of the barcode is illuminated with a light source. Sensors detect the light-dark differences of the code and evaluate them.
Reader types
The following scanner types are offered: LED scanner, laser scanner, camera scanner, CCD scanner, 2D scanner (2D imager).
Barcodes
The barcode is used to identify objects. The bar code is also called identification code. The barcode is read optoelectronically by means of a laser beam and, depending on the barcode type, consists of black bars of different widths and white gaps, squares and dots. A printing process is used to print the black elements on a white carrier. This creates a high contrast and thus good readability.
Barcode types
Linear bar codes
Linear barcodes, also called 1D codes, consist of vertically adjacent thick and thin bars. For linear barcodes, the print contrast between the gaps and the bars must be at least 45% for good readability. The white area between the black barcode bars is the so-called quiet zone. The resting zone must be at least 2.5 mm wide.
Dual-width codes
Dual-width codes were created to increase the information density of the linear barcode. Elements with two different widths are used for this code.
Multi-Width Codes
Multi-width codes provide the greatest density of information. These consist of elements with more than two widths.
2-D Barcodes
2-D codes consist of small squares and dots called modules. 2-D codes are captured using digital cameras (camera scanners) with image capture software or laser scanners. The larger amount of data for 2D codes means that some of the data can be used for error correction.
A distinction is made between stack codes and array codes.
Stacked or Matrix Code
The stacked or matrix code is a stacked multi-line bar code. Stack codes provide a high density of information in a relatively small area.
Array code (matrix code)
Matrix codes, unlike bar codes, are made up of lines, dots and gaps in the form of a matrix. The number of characters within the square matrix code can be up to 2000. Matrix codes have a significantly higher information density compared to bar codes.
The matrix code can be read omnidirectionally, i.e. from all directions. A well-known matrix code is the QR code (quick response code).
How barcode scanners work
The operating principle of barcode scanners is essentially the same. The surface of the barcode is illuminated with a light source. Sensors detect the light-dark differences of the code and evaluate them.
Reader types
The following scanner types are offered: LED scanner, laser scanner, camera scanner, CCD scanner, 2D scanner (2D imager).
Barcodes
The barcode is used to identify objects. The bar code is also called identification code. The barcode is read optoelectronically by means of a laser beam and, depending on the barcode type, consists of black bars of different widths and white gaps, squares and dots. A printing process is used to print the black elements on a white carrier. This creates a high contrast and thus good readability.
Barcode types
Linear bar codes
Linear barcodes, also called 1D codes, consist of vertically adjacent thick and thin bars. For linear barcodes, the print contrast between the gaps and the bars must be at least 45% for good readability. The white area between the black barcode bars is the so-called quiet zone. The resting zone must be at least 2.5 mm wide.
Dual-width codes
Dual-width codes were created to increase the information density of the linear barcode. Elements with two different widths are used for this code.
Multi-Width Codes
Multi-width codes provide the greatest density of information. These consist of elements with more than two widths.
2-D Barcodes
2-D codes consist of small squares and dots called modules. 2-D codes are captured using digital cameras (camera scanners) with image capture software or laser scanners. The larger amount of data for 2D codes means that some of the data can be used for error correction.
A distinction is made between stack codes and array codes.
Stacked or Matrix Code
The stacked or matrix code is a stacked multi-line bar code. Stack codes provide a high density of information in a relatively small area.
Array code (matrix code)
Matrix codes, unlike bar codes, are made up of lines, dots and gaps in the form of a matrix. The number of characters within the square matrix code can be up to 2000. Matrix codes have a significantly higher information density compared to bar codes.
The matrix code can be read omnidirectionally, i.e. from all directions. A well-known matrix code is the QR code (quick response code).
The operating principle of barcode scanners is essentially the same. The surface of the barcode is illuminated with a light source. Sensors detect the light-dark differences of the code and evaluate them.
Reader types
The following scanner types are offered: LED scanner, laser scanner, camera scanner, CCD scanner, 2D scanner (2D imager).
Barcodes
The barcode is used to identify objects. The bar code is also called identification code. The barcode is read optoelectronically by means of a laser beam and, depending on the barcode type, consists of black bars of different widths and white gaps, squares and dots. A printing process is used to print the black elements on a white carrier. This creates a high contrast and thus good readability.
Barcode types
Linear bar codes
Linear barcodes, also called 1D codes, consist of vertically adjacent thick and thin bars. For linear barcodes, the print contrast between the gaps and the bars must be at least 45% for good readability. The white area between the black barcode bars is the so-called quiet zone. The resting zone must be at least 2.5 mm wide.
Dual-width codes
Dual-width codes were created to increase the information density of the linear barcode. Elements with two different widths are used for this code.
Multi-Width Codes
Multi-width codes provide the greatest density of information. These consist of elements with more than two widths.
2-D Barcodes
2-D codes consist of small squares and dots called modules. 2-D codes are captured using digital cameras (camera scanners) with image capture software or laser scanners. The larger amount of data for 2D codes means that some of the data can be used for error correction.
A distinction is made between stack codes and array codes.
Stacked or Matrix Code
The stacked or matrix code is a stacked multi-line bar code. Stack codes provide a high density of information in a relatively small area.
Array code (matrix code)
Matrix codes, unlike bar codes, are made up of lines, dots and gaps in the form of a matrix. The number of characters within the square matrix code can be up to 2000. Matrix codes have a significantly higher information density compared to bar codes.
The matrix code can be read omnidirectionally, i.e. from all directions. A well-known matrix code is the QR code (quick response code).
How barcode scanners work
The operating principle of barcode scanners is essentially the same. The surface of the barcode is illuminated with a light source. Sensors detect the light-dark differences of the code and evaluate them.
Reader types
The following scanner types are offered: LED scanner, laser scanner, camera scanner, CCD scanner, 2D scanner (2D imager).
Barcodes
The barcode is used to identify objects. The bar code is also called identification code. The barcode is read optoelectronically by means of a laser beam and, depending on the barcode type, consists of black bars of different widths and white gaps, squares and dots. A printing process is used to print the black elements on a white carrier. This creates a high contrast and thus good readability.
Barcode types
Linear bar codes
Linear barcodes, also called 1D codes, consist of vertically adjacent thick and thin bars. For linear barcodes, the print contrast between the gaps and the bars must be at least 45% for good readability. The white area between the black barcode bars is the so-called quiet zone. The resting zone must be at least 2.5 mm wide.
Dual-width codes
Dual-width codes were created to increase the information density of the linear barcode. Elements with two different widths are used for this code.
Multi-Width Codes
Multi-width codes provide the greatest density of information. These consist of elements with more than two widths.
2-D Barcodes
2-D codes consist of small squares and dots called modules. 2-D codes are captured using digital cameras (camera scanners) with image capture software or laser scanners. The larger amount of data for 2D codes means that some of the data can be used for error correction.
A distinction is made between stack codes and array codes.
Stacked or Matrix Code
The stacked or matrix code is a stacked multi-line bar code. Stack codes provide a high density of information in a relatively small area.
Array code (matrix code)
Matrix codes, unlike bar codes, are made up of lines, dots and gaps in the form of a matrix. The number of characters within the square matrix code can be up to 2000. Matrix codes have a significantly higher information density compared to bar codes.
The matrix code can be read omnidirectionally, i.e. from all directions. A well-known matrix code is the QR code (quick response code).
What are 1D and 2D codes and how do they differ from each other?
1D codes, also known as barcodes, are linear codes consisting of a series of vertical bars and spaces. They are often used to store information such as product numbers or prices. 1D codes can only store a limited amount of information.
2D codes, also known as matrix codes, consist of a matrix of square modules or dots. Unlike 1D codes, they can store both vertical and horizontal information, which means they have a larger data capacity. 2D codes can store text, numbers, images and even links to websites.
The main difference between 1D and 2D codes therefore lies in their data capacity and their ability to store different types of information. While 1D codes can store limited information due to their linear structure, 2D codes with their matrix structure offer greater storage capacity and the ability to store different types of data.
2D codes, also known as matrix codes, consist of a matrix of square modules or dots. Unlike 1D codes, they can store both vertical and horizontal information, which means they have a larger data capacity. 2D codes can store text, numbers, images and even links to websites.
The main difference between 1D and 2D codes therefore lies in their data capacity and their ability to store different types of information. While 1D codes can store limited information due to their linear structure, 2D codes with their matrix structure offer greater storage capacity and the ability to store different types of data.
What types of information can be encoded in a 1D or 2D code?
Various types of information can be encoded in a 1D or 2D code, including
- Text: These can be simple character strings such as name, address, telephone number, e-mail address, website, product description, instructions, etc.
- Figures: Numerical values such as price, product or serial numbers, quantities, date and time can be encoded in a code.
- Left: A 2D code can also be used as a Quick Response (QR) code to encode a link to a website or online resource.
- Contact details: Business cards can be encoded in a code to store contact details such as name, telephone number, e-mail address and address.
- Geographical locations: GPS coordinates can be encoded in a code to represent an exact geographical position.
- Encrypted data: Sensitive information such as passwords or access codes can be encoded in a code.
- Product information: A code can also encode product information such as barcode, price, country of origin, manufacturer information and expiry date.
- Multimedia content: A code can also refer to multimedia content such as images, audio or video files.
This list is not exhaustive, as the information that can be encoded in a 1D or 2D code depends on the type of code and the encoding standards.
- Text: These can be simple character strings such as name, address, telephone number, e-mail address, website, product description, instructions, etc.
- Figures: Numerical values such as price, product or serial numbers, quantities, date and time can be encoded in a code.
- Left: A 2D code can also be used as a Quick Response (QR) code to encode a link to a website or online resource.
- Contact details: Business cards can be encoded in a code to store contact details such as name, telephone number, e-mail address and address.
- Geographical locations: GPS coordinates can be encoded in a code to represent an exact geographical position.
- Encrypted data: Sensitive information such as passwords or access codes can be encoded in a code.
- Product information: A code can also encode product information such as barcode, price, country of origin, manufacturer information and expiry date.
- Multimedia content: A code can also refer to multimedia content such as images, audio or video files.
This list is not exhaustive, as the information that can be encoded in a 1D or 2D code depends on the type of code and the encoding standards.
How do 1D code readers work and how do they differ from 2D code readers?
1D code readers, also known as barcode readers, use a single dimension to capture information. They read barcodes that consist of a series of lines of different widths. These lines represent data that is linked to a specific code format. 1D code readers use a light source and a sensor to capture the barcode. The light is directed onto the barcode and the sensor detects the reflected light patterns. These patterns are used to decode the barcode and read the information it contains.
2D code readers, on the other hand, can also capture information in a second dimension in addition to the information in one dimension. They can read complex codes such as QR codes or Data Matrix codes, which consist of a matrix of dots or squares. 2D code readers use similar technologies to 1D code readers, but they not only capture the width of the lines, but also the position and arrangement of the dots or squares. This allows them to store and read more information in a smaller code.
The main difference between 1D and 2D code readers therefore lies in the type of codes they can read and the amount of information they can read. 2D code readers are usually more versatile and can read a wider variety of codes, while 1D code readers are limited to barcodes.
2D code readers, on the other hand, can also capture information in a second dimension in addition to the information in one dimension. They can read complex codes such as QR codes or Data Matrix codes, which consist of a matrix of dots or squares. 2D code readers use similar technologies to 1D code readers, but they not only capture the width of the lines, but also the position and arrangement of the dots or squares. This allows them to store and read more information in a smaller code.
The main difference between 1D and 2D code readers therefore lies in the type of codes they can read and the amount of information they can read. 2D code readers are usually more versatile and can read a wider variety of codes, while 1D code readers are limited to barcodes.
What advantages do 2D code readers offer over 1D code readers?
2D code readers offer several advantages over 1D code readers:
1. Greater information capacity: 2D codes can store significantly more information than 1D codes. This means they can contain more complex data such as text, numbers, images and even audio or video files.
2. Better error detection and correction: 2D codes use special algorithms for error detection and correction, which make it possible to read damaged or dirty codes. As a result, they are more robust against environmental influences and offer a higher reading accuracy.
3. Space saving: 2D codes can be printed on smaller labels or surfaces as they can store more information in less space. This is particularly advantageous in areas where space is limited.
4. Versatility: 2D codes can be read in different orientations and angles, making them more flexible and easier to use. They can also be read with various devices such as smartphones, tablets and special 2D code readers.
5. Improved data collection: With the ability to store more information in a code, 2D codes can support a wide range of applications, from product identification and tracking to mobile payments and digital tickets.
Overall, 2D code readers offer greater performance and flexibility in data capture and enable a wider range of applications compared to 1D code readers.
1. Greater information capacity: 2D codes can store significantly more information than 1D codes. This means they can contain more complex data such as text, numbers, images and even audio or video files.
2. Better error detection and correction: 2D codes use special algorithms for error detection and correction, which make it possible to read damaged or dirty codes. As a result, they are more robust against environmental influences and offer a higher reading accuracy.
3. Space saving: 2D codes can be printed on smaller labels or surfaces as they can store more information in less space. This is particularly advantageous in areas where space is limited.
4. Versatility: 2D codes can be read in different orientations and angles, making them more flexible and easier to use. They can also be read with various devices such as smartphones, tablets and special 2D code readers.
5. Improved data collection: With the ability to store more information in a code, 2D codes can support a wide range of applications, from product identification and tracking to mobile payments and digital tickets.
Overall, 2D code readers offer greater performance and flexibility in data capture and enable a wider range of applications compared to 1D code readers.
What are the areas of application for 1D and 2D code readers in industry?
1D and 2D code readers are used in a wide range of industrial applications. Here are some examples:
1D code readers:
- Product identification: 1D codes are often used on products and packaging to store information such as serial numbers, batch numbers or production data. 1D code readers make it possible to read these codes quickly and accurately, thereby improving the traceability and documentation of products.
- Warehouse management: In warehouses and logistics centers, 1D codes are often used to identify goods and containers. Readers make it possible to scan these codes quickly when storing and retrieving products and thus monitor and control stock levels.
- Quality control: 1D codes can also be used in quality control to check production and component data. Readers can read these codes and compare them with the expected values in order to detect errors or deviations.
2D code readers:
- Direct part marking: 2D codes are often marked directly on components and products to store permanent information such as serial numbers, production data or safety certificates. Readers make it possible to read these codes and thus control and monitor the production and assembly processes.
- Logistics and supply chain: 2D codes are used in logistics and the supply chain to store information such as tracking numbers, delivery data or recipient data. Readers make it possible to scan these codes quickly and thus make the dispatch and delivery of goods more efficient.
- Security and access control: 2D codes can also be used for security and access control, e.g. to store access authorizations, employee ID cards or visitor badges. Readers make it possible to scan these codes quickly and thus control and monitor access to buildings or events.
This list is not exhaustive, as the possible uses of 1D and 2D code readers can vary depending on the industry and area of application.
1D code readers:
- Product identification: 1D codes are often used on products and packaging to store information such as serial numbers, batch numbers or production data. 1D code readers make it possible to read these codes quickly and accurately, thereby improving the traceability and documentation of products.
- Warehouse management: In warehouses and logistics centers, 1D codes are often used to identify goods and containers. Readers make it possible to scan these codes quickly when storing and retrieving products and thus monitor and control stock levels.
- Quality control: 1D codes can also be used in quality control to check production and component data. Readers can read these codes and compare them with the expected values in order to detect errors or deviations.
2D code readers:
- Direct part marking: 2D codes are often marked directly on components and products to store permanent information such as serial numbers, production data or safety certificates. Readers make it possible to read these codes and thus control and monitor the production and assembly processes.
- Logistics and supply chain: 2D codes are used in logistics and the supply chain to store information such as tracking numbers, delivery data or recipient data. Readers make it possible to scan these codes quickly and thus make the dispatch and delivery of goods more efficient.
- Security and access control: 2D codes can also be used for security and access control, e.g. to store access authorizations, employee ID cards or visitor badges. Readers make it possible to scan these codes quickly and thus control and monitor access to buildings or events.
This list is not exhaustive, as the possible uses of 1D and 2D code readers can vary depending on the industry and area of application.
Which technologies are used to recognize and decode 1D and 2D codes?
There are various technologies that are used to detect and decode 1D and 2D codes. Some of the most common technologies are:
1. Barcode scanner: Barcode scanners use a combination of light and sensors to recognize and decode 1D codes. They can be either laser-based or image-based. Laser-based scanners use a laser beam to scan the barcode, while image-based scanners use a camera to capture and then analyze an image of the barcode.
2. QR code scanner: Special QR code scanners are used to recognize and decode 2D codes such as QR codes. These scanners also use a camera to capture the image of the QR code and then decode the code. Most modern smartphones have built-in QR code scanners.
3. Machine vision systems: Machine vision systems use advanced image processing algorithms and cameras to recognize and decode 1D and 2D codes. These systems are generally widely used in industry and can also be used in difficult conditions such as poor lighting or difficult surfaces.
4. Near Field Communication (NFC): NFC is a wireless technology that is used for communication and data transmission over short distances. Some 2D codes can be equipped with NFC technology to enable quick and easy data transfer. NFC-enabled devices such as smartphones can read these codes and display the information they contain.
5. Radio-Frequency Identification (RFID): RFID technology is often used to identify and track products in the supply chain. RFID tags contain a chip and an antenna that can communicate wirelessly with an RFID reader. The tags can be coupled with 1D or 2D codes to provide additional information.
These technologies can vary depending on the application and environment. It is important to select the right technology for the specific requirements.
1. Barcode scanner: Barcode scanners use a combination of light and sensors to recognize and decode 1D codes. They can be either laser-based or image-based. Laser-based scanners use a laser beam to scan the barcode, while image-based scanners use a camera to capture and then analyze an image of the barcode.
2. QR code scanner: Special QR code scanners are used to recognize and decode 2D codes such as QR codes. These scanners also use a camera to capture the image of the QR code and then decode the code. Most modern smartphones have built-in QR code scanners.
3. Machine vision systems: Machine vision systems use advanced image processing algorithms and cameras to recognize and decode 1D and 2D codes. These systems are generally widely used in industry and can also be used in difficult conditions such as poor lighting or difficult surfaces.
4. Near Field Communication (NFC): NFC is a wireless technology that is used for communication and data transmission over short distances. Some 2D codes can be equipped with NFC technology to enable quick and easy data transfer. NFC-enabled devices such as smartphones can read these codes and display the information they contain.
5. Radio-Frequency Identification (RFID): RFID technology is often used to identify and track products in the supply chain. RFID tags contain a chip and an antenna that can communicate wirelessly with an RFID reader. The tags can be coupled with 1D or 2D codes to provide additional information.
These technologies can vary depending on the application and environment. It is important to select the right technology for the specific requirements.
How secure are 1D and 2D codes and what security features can be integrated into them?
1D and 2D codes (such as barcodes and QR codes) are generally relatively secure, as they can contain a wide range of information that is difficult to manipulate. However, there are certain security features that can be integrated into these codes to further improve their security:
1. Encryption: By encrypting the information embedded in the code, unauthorized persons can be prevented from accessing sensitive data. Various encryption algorithms can be used to protect the data.
2. Digital signatures: By using digital signatures, the integrity and authenticity of the code can be verified. A digital signature makes it possible to check the code for authenticity and determine whether it has been manipulated since it was created.
3. Watermark: By integrating invisible watermarks into the code, additional layers of security can be created. These watermarks can, for example, contain information about the code owner or the intended use, thus enabling the code to be traced and identified.
4. Multi-stage verification: The security of the code can be increased by using multi-stage verification procedures. This can be achieved, for example, by combining various security features such as encryption, digital signatures and biometric data.
5. Access restrictions: By implementing access restrictions, access to certain information in the code can be restricted. This can be used to protect sensitive data by allowing only authorized persons to access this information.
However, it is important to note that no security measure can guarantee 100% security. However, implementing these security features can help to increase the security of 1D and 2D codes and reduce the risk of tampering and unauthorized access.
1. Encryption: By encrypting the information embedded in the code, unauthorized persons can be prevented from accessing sensitive data. Various encryption algorithms can be used to protect the data.
2. Digital signatures: By using digital signatures, the integrity and authenticity of the code can be verified. A digital signature makes it possible to check the code for authenticity and determine whether it has been manipulated since it was created.
3. Watermark: By integrating invisible watermarks into the code, additional layers of security can be created. These watermarks can, for example, contain information about the code owner or the intended use, thus enabling the code to be traced and identified.
4. Multi-stage verification: The security of the code can be increased by using multi-stage verification procedures. This can be achieved, for example, by combining various security features such as encryption, digital signatures and biometric data.
5. Access restrictions: By implementing access restrictions, access to certain information in the code can be restricted. This can be used to protect sensitive data by allowing only authorized persons to access this information.
However, it is important to note that no security measure can guarantee 100% security. However, implementing these security features can help to increase the security of 1D and 2D codes and reduce the risk of tampering and unauthorized access.
What trends and developments are there in the field of 1D and 2D code readers?
There are several trends and developments in the field of 1D and 2D code readers, including:
1. Compact and portable devices: Devices are becoming smaller and lighter, which improves their portability and user-friendliness. This allows users to take them with them wherever they go and use them conveniently.
2. Wireless connectivity: The integration of wireless connectivity such as Bluetooth and WLAN enables seamless connection to other devices such as smartphones, tablets and computers. This makes data transfer and processing easier and more flexible.
3. Improved reading performance: By using more advanced technologies such as image processing algorithms and higher resolutions, 1D and 2D code readers can now offer higher reading performance. This leads to faster and more reliable reading processes.
4. Multiple code recognition: Many modern readers are able to recognize and read multiple codes simultaneously, which increases efficiency and productivity in various applications. This is particularly useful in areas such as warehousing, logistics and retail.
5. Integration of additional functions: Some 1D and 2D code readers offer additional functions such as OCR (Optical Character Recognition) and RFID (Radio-Frequency Identification). This means they can not only read barcodes and QR codes, but also capture and process other types of information.
6. Robustness and durability: Devices are becoming increasingly robust and resistant to shocks, dust, moisture and extreme temperatures. This makes them ideal for use in demanding environments such as warehouses or outdoors.
7. Automatic trigger functions: Some readers have automatic trigger functions that automatically initiate the reading process when a code is recognized. This improves user-friendliness and speeds up the workflow.
These trends and developments are helping to make 1D and 2D code readers more effective, versatile and user-friendly, which expands their potential uses in various industries and applications.
1. Compact and portable devices: Devices are becoming smaller and lighter, which improves their portability and user-friendliness. This allows users to take them with them wherever they go and use them conveniently.
2. Wireless connectivity: The integration of wireless connectivity such as Bluetooth and WLAN enables seamless connection to other devices such as smartphones, tablets and computers. This makes data transfer and processing easier and more flexible.
3. Improved reading performance: By using more advanced technologies such as image processing algorithms and higher resolutions, 1D and 2D code readers can now offer higher reading performance. This leads to faster and more reliable reading processes.
4. Multiple code recognition: Many modern readers are able to recognize and read multiple codes simultaneously, which increases efficiency and productivity in various applications. This is particularly useful in areas such as warehousing, logistics and retail.
5. Integration of additional functions: Some 1D and 2D code readers offer additional functions such as OCR (Optical Character Recognition) and RFID (Radio-Frequency Identification). This means they can not only read barcodes and QR codes, but also capture and process other types of information.
6. Robustness and durability: Devices are becoming increasingly robust and resistant to shocks, dust, moisture and extreme temperatures. This makes them ideal for use in demanding environments such as warehouses or outdoors.
7. Automatic trigger functions: Some readers have automatic trigger functions that automatically initiate the reading process when a code is recognized. This improves user-friendliness and speeds up the workflow.
These trends and developments are helping to make 1D and 2D code readers more effective, versatile and user-friendly, which expands their potential uses in various industries and applications.