TECH NOTES

Existing products equipment support RS232, RS485, TcpClient, USB HID, Bluetooth, WiFi etc connection

Usually called serial port connection, the default baud rate is 115200(n-8-1), suitable for RS232, TTL communication; The hardware interfaces are DB9, USB to BS232, and TTL directly connected to the module.

A kind of serial communication, different from RS232 will have a communication address, the default is 1, half duplex communication, bus networking structure.

One of the most common modes of network port communication, that is, the reader is the passive receiver of the connection and the host computer initiates the connection actively. The factory default IP address of the reader is 192.168.1.168, and the port number is 8160. If you forget the configuration information after the modification, broadcast recovery through the serial port or search device.

A non-drive USB communication mode, generally unique to desktop and portable devices: if the device is not found, the first check whether the device model supports the connection mode, followed by checking the line condition and whether the device manager can find the USB channel.

Existing products equipment support EPC C1G2, ISO 18000-6B, ISO 18000-6C, GB/T29768-2013 (optional)

1, If the serial port fails to be opened directly, check whether the hardware port is occupied by other programs.

2, Open the connection prompt “Invalid connection”, first check whether other programs have controlled the device, the same device cannot be controlled by two connections at the same time, you need to stop other connections; Secondly, check whether the module wiring is normal, hardware indicators,etc.

3, Non-module devices generally have a self-test on power-on. You can determine whether the device is normally powered on by the buzzer.
If there is a hardware exception, please contact Cykeo business customer service : contact@cykeo.com

EPC (Electronic Product Code) and TID (Tag Identifier) are two important areas in RFID (Radio Frequency Identification) tags, which differ in function and use. ‌

EPC area
EPC area is the area used to store the code of electronic products. EPC is a globally uniform commodity coding system used to identify and manage goods. The data structure of EPC area includes check bit, length control bit and data storage location. The user can manually write or modify the EPC data, which gives the EPC area a high degree of flexibility. The default data structure of the EPC area is: the first word is the check bit, the second word is the length control, and the subsequent word is used to store the actual data. In actual operations, you need to calculate the length control bit based on the data length and write data from the length control bit. The verification bit is automatically calculated ‌12.

TID region
The TID area is used to store the label identification number. Each RFID tag has a unique TID number, which is used to distinguish different tags. The size of the TID area is usually 12 bytes, and it is “only readable, not writable”, and has been written at the factory, which is unique in the world. The TID number is composed of the chip manufacturer code, chip model code and serial number to ensure the uniqueness of the label

Writing operation can change data of the specified area of the tag.Access passwor is needed if such area is locked.

Select the area for operation and corresponding operation,fill in password then the operation can be done or it will fail (it also fails for tag without any password).

Click Destroy after filling in the password,then the tag will be destroyed.This operation is irrevocable and the tag destroyed will be invaid permanently.

RSSI (Received Signal Strength Indication) is the value of the signal read by the RFID reader, which indicates the power strength of the received signal, usually expressed in decibels milliwatts (dBm). The size of the RSSI value represents the distance between the tag and the reader and the quality of the signal.
Generally speaking, the larger the RSSI value, the better the quality of the received signal, and the closer the label is to the reader. On the contrary, the smaller the RSSI value, the worse the quality of the received signal, and the farther the label is from the reader. Therefore, by measuring the RSSI value, the distance between the label and the reader and the signal quality can be roughly judged.

Gb: 920-925MHz, Gb: 840-845MHz, Gb: 840-845MHz & 920-925MHz, FCC: 902-908MHz, ETSI: 866-868MHz, JP: 916.8-920.4MHz,
TW: 922.25-927.75MHz, ID: 923.125-925.125MHz, RUS: 866.6-867.4MHz, JPLBT: 916.8-920.8MHz, AUS: 918.25-925.75MHz,
KR: 917-923.5MHz, RUS: 866.3-867.5MHz, Also supports “TEST-AUTO”.

CRC, also known as cyclic redundancy check, is a double check feature that helps the tag ensure that all reader-to-tag commands are valid, and helps the reader ensure that all backscattered tag to reader commands are valid.

Enterprise Application Software (EAS) ‌ refers to Enterprise application software, usually Enterprise Resource Planning (ERP) software. EAS system is an integrated management software, mainly used in various internal management work of enterprises, including financial management, human resource management, procurement management, sales management, supply chain management and other fields.

GPI in RFID reader refers to “General Purpose Input/Output” (GPI/O‌). The function of the GPI/O is similar to the P0-P3 of the 8051, and its pins can be used freely by the user, either as a universal input (GPI) or as a universal output (GPO), or with both input and output functions (GPIO), such as a clock generator, chip selection, etc.

In RFID systems, GPI/O is mainly used to control and manage the communication between readers and tags. Specifically, the GPI/O pin can be used to read the information of the RFID tag, and can also be used to control various functions of the reader, such as signal transmission, data transmission, and so on. By reading the level status of the GPI/O pin, the state of the pin (high or low) can be determined, thus achieving control of the reader.

Baseband data encoding in RFID ‌ means that in the RFID system, data needs to be encoded before transmission to ensure that the data can be correctly and reliably transmitted through the channel. The main purpose of baseband data coding is to convert binary data into a signal form suitable for transmission on the channel, while providing a certain anti-interference capability.