ThingMagic

Introduction

Model Number

4

Network Protocol

SQL like protocol that may be wrapped in ssh, web interface, RCP, and Linux shell login.

Communication

10/100 BaseT Ethernet – RJ45

Antennas

4 read points (4 transmit points, 4 receive points)

General Purpose I/O

(To Do)

Basis of Virtual Reader

The reader accepts SQL style protocol and returns the appropriate information.

Documentation

Client Tools

Telnet, SSH clients, and Tag Centric

Reader Design

This section will give a brief overview of how the hardware reader operates for the purposes of emulation.

Communication

Protocols

The main method for communicating with the reader is via TCP, TCP+SSH on port 8080, web interface, and RCP.

Memory Model

The memory model is like a state based database.

Getting Tags

Getting tags is fairly simple just execute:

telnet [reader ip address] 8080

Then type:

select id from tag_id set time_out=[milliseconds];

Note: the semicolon at the end of each command is necessary.

One can also return multiple items:

select id, protocol_id from tag_id set time_out=[milliseconds];

Also add filters or conditionals:

select id from tag_id where [condition or filter] set time_out=[milliseconds];

In addition more than one statement can be put on more than one line.

select id from tag_id set time_out=[milliseconds]; select protocol from tag_id set time_out=[milliseconds];

Tag Centric reads tags in the following manner:

select id,read_count from tag_id WHERE (protocol_id='EPC0' and protocol_id='EPC1' and protocol_id='GEN2') set time_out=200;

From this, one can tell if two conditions conjoined with 'AND' use the same column name, it counts as a logical 'OR'.

Timer

Autonomous Mode

Login

By SSH log in.

RQL Schema

tag_id

Read/Write	Field	Type
R	protocol_id	Int
R	antenna_id	Int
R	read_count	Int
R/W	id	Hex String
W	killed	Int
W	password	Hex String
R	locked	Int
R	frequency	Int
R	dspmicros	Int
R	timestamp	String

tag_data

Read/Write	Field	Type
R	id	Hex String
R/W	block number	Int
R/W	data	Hex String
R	locked	Int

settings

Read/Write	Field	Type
R	current_time	String
R	version	String
R	supported_protocols	String

io

Read/Write	Field	Type
R/W	data	Hex String

saved_settings

Read/Write	Field	Type
R/W	hostname	String
R/W	iface	String
R/W	dhcpcd	String
R/W	ip_address	String
R/W	netmask	String
R/W	gateway	String
R/W	ntp_servers	String
R/W	1tx_power	String
R/W	uhf_power_centidbm	String
R/W	epc1_id_length	String
R/W	primary_dns	String
R/W	secondary_dns	String
R/W	domain_name	String
R/W	reader_description	String
R/W	reader_role	String
R/W	ant1_readpoint_descr	String
R/W	ant2_readpoint_descr	String
R/W	ant3_readpoint_descr	String
R/W	ant4_readpoint_descr	Stromg

Supported Features

[To do.]

Unsupported Features & Bugs

Linux shell access to reader. This is fairly complex and require to emulate the entire hardware infrastructure of the reader and an ARM possessor. Also the web and RCP interface might be developed at a later time.