WO2015160237A1 - Device for reading a passive transponder - Google Patents

Device for reading a passive transponder Download PDF

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Publication number
WO2015160237A1
WO2015160237A1 PCT/NL2015/050203 NL2015050203W WO2015160237A1 WO 2015160237 A1 WO2015160237 A1 WO 2015160237A1 NL 2015050203 W NL2015050203 W NL 2015050203W WO 2015160237 A1 WO2015160237 A1 WO 2015160237A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
module
reader module
processing module
reader
Prior art date
Application number
PCT/NL2015/050203
Other languages
French (fr)
Inventor
Robert TROOST
Original Assignee
Leeo B.V.
Strukton Embedded Solutions B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leeo B.V., Strukton Embedded Solutions B.V. filed Critical Leeo B.V.
Publication of WO2015160237A1 publication Critical patent/WO2015160237A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
    • G06K7/10376—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable
    • G06K7/10386—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable the interrogation device being of the portable or hand-handheld type, e.g. incorporated in ubiquitous hand-held devices such as PDA or mobile phone, or in the form of a portable dedicated RFID reader

Definitions

  • the invention relates to a device for reading out of a passive transponder, such as an RFID tag.
  • An RFID (Radio Frequency Identification) tag is a transponder, which by a radio signal / alternating magnetic field can be activated and then a signal returns containing data that is in the RFID tag
  • RFID tags are in many areas applied, including in animal husbandry.
  • the animals are provided with an RFID tag, for example, arranged under the skin or in an eartag.
  • the animals shall be provided at birth of such a transponder, so that for example all treatments of the animal can be registered.
  • a hand computer is being used with integrated RFID reader. If an animal is treated, for example, when a drug is administered, the handheld computer is held by the eartag of the animal to read the data from the RFID tag and the animal is to be identified. Subsequently, in the handheld further information about treatment can be added.
  • said at least a reader module with an antenna and a controller for generating a activation signal via the antenna for the receiving a response signal received through the antenna and for the processing of the received reply signal to data includes;
  • the reader module is wirelessly connected to the processing module to which the reader module will send the processed data to the processing module .
  • the processing module is apart from the reader module.
  • the processing module in one of the pockets of the work wear and only the reader module is close to the RFID tag of the animal .
  • this module can stay relatively small, so the weight can be restricted and the reader module can be easily handled.
  • the processing module need to be less robust since this module is more remote from the animals .
  • the reader module sends an activation signal, with which the transponder is supplied with power, so that the transponder can then send back a response signal, in which data is recorded, which finally by the reader module is filtered from the response signal. Via the wireless connection then this data is sent to the more distant
  • the reader module comprises a housing, and is the antenna placed in the housing.
  • the known integrated handhelds have a protruding antenna sticking out of the housing, or even an seperate antenna connected via a wire to the computer. Due to the antennabeing integrated in the reader module housing, the module can easily being carried in a pocket. As a result, the module is easy to carry and always available. This increases the use and improves automation.
  • the antenna comprises a cylindrical core of a magnetically permeable material and an around the cylindrical core wound coil.
  • the cylindrical core of a compacted mixture of iron powder and an insulating manufactured binder has the advantage of a low impedance, which is constant over a large frequency range, in comparison with, for example, a core of ferrite.
  • cylindrical core between 15 mm and 35 mm, preferably 25 mm is and a diameter of between 7mm and 10mm, preferably 8mm. At these dimensions, a highly sensitive antenna is obtained, which is suitable for low frequency RFID tags (up to 1 Mhz), while a very compact form of the antenna is obtained.
  • the coil preferably has between 75 and 80 windings, but preferably 77 windings.
  • the reader module and processing module each have a bluetooth component for setting up a wireless Bluetooth connection.
  • the processing module is thereby a smartphone.
  • each one usually carries smartphone with him.
  • the current featured smartphones have the necessary power (often much more than the traditional combined terminals which makes processing the received data faster) , and the necessary connection components, including a Bluetooth component, by which the data, received via the wireless connection of. the reader module, can be processed further.
  • the smartphone will send all this data back again to the remote server for storage.
  • the reader module is mounted on a glove for carrying the module.
  • the glove enables easy carrying of the reader module on the hand, while it is wirelessly connected to, for example, a smartphone, which is for example carried in a coverall. In this way one person can scan and treat an animal. After the treatment the person may then add i
  • Figure 1 shows a schematic overview of a embodiment of the device according to the invention.
  • Figure 2 shows a detail of the embodiment according to Figure 1.
  • Figure 1 shows an device for reading from a passive transponder 1, such as a RFID tag, which
  • This transponder 1 for example, is incorporated in an eartag of an animal.
  • This transponder 1 has a chip 2 and an antenna 3, which in a housing 4 are arranged.
  • the device has a reader module 5 and a processing module 6.
  • the reader module 5 is provided with an antenna 7, a controller 8 and a power supply 9, such as for example a battery.
  • controller via the antenna 7 sends out an activation signal Sa.
  • This signal Sa is collected in the antenna 3 of the transponder 1, so that the chip 2 is supplied with power.
  • the chip 2 generates a response signal Sr, which via Antenna 3 is returned and via the antenna 7 arrives at controller 8.
  • the controller 8 filters out the response signal Sr, the data which is disposed on the chip 2.
  • the data is fed via a wireless compound 10, such as a Bluetooth connection, to a processing module 11 sent to in particular an smartphone.
  • a wireless compound 10 such as a Bluetooth connection
  • the user can then on the smartphone check the transponder data 1 data received and, if necessary 5 supplement. Possibly the
  • smartphone 11 is connected via a WiFi network or a GSM network 12 to a remote server 13, which supplies additional
  • FIG. 2 shows a detail of the reader module 5, in Specifically, an antenna 7.
  • the antenna 7 cylindrical core 14 having a diameter d and a length 1. Around this is a coil 15 wound with a diameter D.
  • the length L of the cylindrical core 14 lies at preferably between 15mm and 35mm and the diameter d is set at preferably between 7mm and 10mm.
  • a very preferred embodiment of the antenna 7 has the following characteristics:
  • the core 14 of the antenna 7 is in addition, an iron-powder core.
  • a obtained very compact antenna which is very suitable for low frequency RFID tags that operate at a frequency of 134,2kHz. Because of the small length of only 25 mm, the size may be limited by the reader module, making this is easy to handle, and wherein the processing module, such as a smart phone, can be supported on a suitable place, as for example in the pocket of a garment.

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  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

The invention relates to a device for reading a passive transponder, such as an RFID tag, which device comprises : A reader module, said at least reader module an antenna and a controller for generating an activation signal via the antenna, for the receiving a response signal received via the antenna and for the processing of the received reply signal to data includes; A processing module, wherein the reader module is wirelessly connected to the processing module for sending the processed data from the reader module to the processing module.

Description

An device for reading a passive transponder
The invention relates to a device for reading out of a passive transponder, such as an RFID tag.
An RFID (Radio Frequency Identification) tag is a transponder, which by a radio signal / alternating magnetic field can be activated and then a signal returns containing data that is in the RFID tag
Such RFID tags are in many areas applied, including in animal husbandry. In addition, the animals are provided with an RFID tag, for example, arranged under the skin or in an eartag. The animals shall be provided at birth of such a transponder, so that for example all treatments of the animal can be registered.
In known systems, a hand computer is being used with integrated RFID reader. If an animal is treated, for example, when a drug is administered, the handheld computer is held by the eartag of the animal to read the data from the RFID tag and the animal is to be identified. Subsequently, in the handheld further information about treatment can be added.
The disadvantage of such a system is that when treating the animal typically both hands are required and thus the computer can not be hand held. The temporarily put down the handheld is often not possible, because of dirt or because one stands between the animals and the computer could be damaged by doing so.
Also, carrying the hand held computer on the hand or arm is not desirable because of the weight of the hand-held computer, which would limit the freedom of the individual too much. For this reason, such known systems are often used by two people simultaneously, so that one person can operate hand computer and the other person can treat the animal.
By operating it with two people, the "Automatomation" becomes expensive and is therefore often not deployed .
It is now the object of the invention to reduce or even prevent the above mentioned disadvantages. This object is achieved according to the invention with a device for reading a passive transponder, such as an RFID tag, the device comprising :
- a reader module, said at least a reader module with an antenna and a controller for generating a activation signal via the antenna for the receiving a response signal received through the antenna and for the processing of the received reply signal to data includes;
- a processing module, wherein the reader module is wirelessly connected to the processing module to which the reader module will send the processed data to the processing module .
Because of the division into modules of the device it is possible to use the processing module apart from the reader module. Thus, it is possible, for example when treating animals, the processing module in one of the pockets of the work wear and only the reader module is close to the RFID tag of the animal . Because the only functionality of the reader module is reading out the RFID tag or transponder, this module can stay relatively small, so the weight can be restricted and the reader module can be easily handled.
Due to the wireless connection, it is further possible to make the reader module robust, while the
processing module need to be less robust since this module is more remote from the animals . The reader module sends an activation signal, with which the transponder is supplied with power, so that the transponder can then send back a response signal, in which data is recorded, which finally by the reader module is filtered from the response signal. Via the wireless connection then this data is sent to the more distant
processing module.
In an embodiment of the device according to the invention the reader module comprises a housing, and is the antenna placed in the housing.
The known integrated handhelds have a protruding antenna sticking out of the housing, or even an seperate antenna connected via a wire to the computer. Due to the antennabeing integrated in the reader module housing, the module can easily being carried in a pocket. As a result, the module is easy to carry and always available. This increases the use and improves automation.
In a preferred embodiment of the device according to the invention, the antenna comprises a cylindrical core of a magnetically permeable material and an around the cylindrical core wound coil. By using a core with therearound a wound coil, is the sensitivity of the antenna increases
considerably, so that the dimensions of the antenna can be kept limited. This is against the general opinion of the skilled person of who an antenna with a length of at least 10 centimeters prescribes for RFID readers who work in low frequency and high frequency range (up to 30 approximately 10 MHz) .
In a further embodiment of the device according to the invention, the cylindrical core of a compacted mixture of iron powder and an insulating manufactured binder. Such a composition for the core of the antenna has the advantage of a low impedance, which is constant over a large frequency range, in comparison with, for example, a core of ferrite. In a highly preferred embodiment of the length of the device is according to the invention cylindrical core between 15 mm and 35 mm, preferably 25 mm is and a diameter of between 7mm and 10mm, preferably 8mm. At these dimensions, a highly sensitive antenna is obtained, which is suitable for low frequency RFID tags (up to 1 Mhz), while a very compact form of the antenna is obtained.
The coil preferably has between 75 and 80 windings, but preferably 77 windings.
In another embodiment of the device according to the invention include the reader module and processing module each have a bluetooth component for setting up a wireless Bluetooth connection.
Preferably, the processing module is thereby a smartphone. Nowadays, each one usually carries smartphone with him. In addition, the current featured smartphones have the necessary power (often much more than the traditional combined terminals which makes processing the received data faster) , and the necessary connection components, including a Bluetooth component, by which the data, received via the wireless connection of. the reader module, can be processed further. Thus it is possible to, for example, of an external server to bring in additional information to the processing module combining data from the reader module to other data. Finally, the smartphone will send all this data back again to the remote server for storage.
In yet another embodiment of the device according to the invention, the reader module is mounted on a glove for carrying the module. The glove enables easy carrying of the reader module on the hand, while it is wirelessly connected to, for example, a smartphone, which is for example carried in a coverall. In this way one person can scan and treat an animal. After the treatment the person may then add i
nformation via the smartphone.
These and other features of the invention are explained in more detail with reference to the following drawings . Figure 1 shows a schematic overview of a embodiment of the device according to the invention.
Figure 2 shows a detail of the embodiment according to Figure 1.
Figure 1 shows an device for reading from a passive transponder 1, such as a RFID tag, which
for example, is incorporated in an eartag of an animal. This transponder 1 has a chip 2 and an antenna 3, which in a housing 4 are arranged.
The device according to the invention has a reader module 5 and a processing module 6. The reader module 5 is provided with an antenna 7, a controller 8 and a power supply 9, such as for example a battery. The 8 transmission
controller via the antenna 7 sends out an activation signal Sa. This signal Sa is collected in the antenna 3 of the transponder 1, so that the chip 2 is supplied with power.
Then, the chip 2 generates a response signal Sr, which via Antenna 3 is returned and via the antenna 7 arrives at controller 8. The controller 8 then filters out the response signal Sr, the data which is disposed on the chip 2.
Subsequently, the data is fed via a wireless compound 10, such as a Bluetooth connection, to a processing module 11 sent to in particular an smartphone. The user can then on the smartphone check the transponder data 1 data received and, if necessary 5 supplement. Possibly the
smartphone 11 is connected via a WiFi network or a GSM network 12 to a remote server 13, which supplies additional
information about the animal, and in addition, stores the collected data of the smartphone 11.
Figure 2 shows a detail of the reader module 5, in Specifically, an antenna 7. The antenna 7 cylindrical core 14 having a diameter d and a length 1. Around this is a coil 15 wound with a diameter D. The length L of the cylindrical core 14 lies at preferably between 15mm and 35mm and the diameter d is set at preferably between 7mm and 10mm. A very preferred embodiment of the antenna 7 has the following characteristics:
* D = 9.7mm +/- 0.6mm
* d = 8mm
* L = 25mm
* Rs: 0.85 ohm +/- 5%
* Ls 275 uH +/- 5% (@ 125kHz)
* Q: 0.7 (@ 1 kHz)
wherein the resistance Rs of the coil 15, and Ls is the impedance of the coil 15 is. The core 14 of the antenna 7 is in addition, an iron-powder core.
With this preferred embodiment, a obtained very compact antenna, which is very suitable for low frequency RFID tags that operate at a frequency of 134,2kHz. Because of the small length of only 25 mm, the size may be limited by the reader module, making this is easy to handle, and wherein the processing module, such as a smart phone, can be supported on a suitable place, as for example in the pocket of a garment.
When the reader module is made suitable for other RFID tags or transponders, which operates at a different frequency 5, then it is obvious to the skilled person the dimensions of the coil 15 and hence the dimensions of the core 14 must be adjusted accordingly.

Claims

Claims
1. Device for reading a passive transponder, such as an RFID tag, the device comprising:
- a reader module, which reader module at least contains an antenna and a controller for generating a
activation signal from the antenna, receiving a response signal received via the antenna and for the processing of the received reply signal to data includes;
- a processing module, wherein the reader module is wirelessly connected to the processing module to send the processed data from the reader module to the processing module .
2. Device according to claim 1, wherein the reader module includes a housing and wherein the antenna in the casing is housed.
3. Device as claimed in claim 1 or 2, wherein the antenna comprises a cylindrical core of a magnetically permeable material and comprises a coil wrapped around the cylindrical core.
4. Device according to claim 3, wherein the cylindrical core is manufactured of a compressed mixture of iron powder and an insulating binder.
5. Device according to claim 3 or 4, wherein the length of the cylindrical core is between 15 mm and 35 mm, is preferably 25 mm and has a diameter of between 7 mm and 10 mm, preferably 8 mm.
6. Device according to any of the preceding claims 3-5, wherein the coil has between 75 and 80 windings,
preferably 77.
7. Device according to any one of the preceding claims, wherein the processing module and the reader module each comprise a Bluetooth component for setting up a Bluetooth wireless connection.
8. Device according to any one of the preceding claims, wherein the processing module is a smartphone or tablet .
9. Device according to any one of the preceding claims, wherein the reader module is arranged on a glove for the hand carrying the module.
PCT/NL2015/050203 2014-04-15 2015-03-31 Device for reading a passive transponder WO2015160237A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2012625A NL2012625B1 (en) 2014-04-15 2014-04-15 Device for reading a passive transponder.
NL2012625 2014-04-15

Publications (1)

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WO2015160237A1 true WO2015160237A1 (en) 2015-10-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1357513A2 (en) * 2002-04-24 2003-10-29 Smart Card Co., Ltd. Noncontact sensor coil and tag system
US20060044112A1 (en) * 2004-08-31 2006-03-02 Raj Bridgelall Wearable RFID reader and system
DE102005049740A1 (en) * 2005-10-14 2007-04-19 ASTRA Gesellschaft für Asset Management mbH & Co. KG Installation for monitoring the manual transfer of goods bearing identification carriers
US20100271187A1 (en) * 2009-04-22 2010-10-28 Franwell, Inc. Wearable rfid system
US20130311314A1 (en) * 2012-05-16 2013-11-21 Zone24X7 Inc. Generic apparatus to provide RFID reading functionality to computing device with no built in RFID reader

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1357513A2 (en) * 2002-04-24 2003-10-29 Smart Card Co., Ltd. Noncontact sensor coil and tag system
US20060044112A1 (en) * 2004-08-31 2006-03-02 Raj Bridgelall Wearable RFID reader and system
DE102005049740A1 (en) * 2005-10-14 2007-04-19 ASTRA Gesellschaft für Asset Management mbH & Co. KG Installation for monitoring the manual transfer of goods bearing identification carriers
US20100271187A1 (en) * 2009-04-22 2010-10-28 Franwell, Inc. Wearable rfid system
US20130311314A1 (en) * 2012-05-16 2013-11-21 Zone24X7 Inc. Generic apparatus to provide RFID reading functionality to computing device with no built in RFID reader

Also Published As

Publication number Publication date
NL2012625B1 (en) 2016-04-11
NL2012625A (en) 2016-01-28

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