TWI438697B - Power - saving electronic tags - Google Patents
Power - saving electronic tags Download PDFInfo
- Publication number
- TWI438697B TWI438697B TW099128559A TW99128559A TWI438697B TW I438697 B TWI438697 B TW I438697B TW 099128559 A TW099128559 A TW 099128559A TW 99128559 A TW99128559 A TW 99128559A TW I438697 B TWI438697 B TW I438697B
- Authority
- TW
- Taiwan
- Prior art keywords
- power
- microprocessor
- electronic tag
- signal
- saving electronic
- Prior art date
Links
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
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0702—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
- G06K19/0705—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery the battery being connected to a power saving arrangement
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0713—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a power charge pump
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Near-Field Transmission Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
本發明係有關於電子標籤作動方式,更詳而言之,係有關於一種省電電子標籤作動方式。
隨著技術的進步及增加產業方便性之故,射頻識別(radio frequency identification,RFID)技術被廣泛應用,諸如航空行李監控、倉儲管理、物流管理、圖書管理、防盜保全系統、自動收費系統、品質管理、及醫療管理等領域。於射頻識別系統中,射頻識別讀取裝置(RFID interrogator/reader)與電子標籤(RFID tag)係以無線射頻訊號來進行非接觸性的半雙工數據傳輸,以達到物件識別或數據交換等目的。其中,該電子標籤(passive tag)可分為被動式及主動式:所謂的被動式電子標籤是指電子標籤內部並未設置電源,其電力來自接收讀取器的電磁波並轉換而得,因此與讀取器之間必須保持於極短的讀取距離(約在10公分以內),以利電磁波接收之功效。
主動式電子標籤與被動式電子標籤的差異在於,主動式電子標籤內部具有電源供應設施,可提供內部IC向外發射訊號所須的電力,因此主動式電子標籤有較被動式電子標籤通訊距離遠的優點,因此如何延長該主動式電子標籤電池壽命,及提高電源管理係為一個很重要的課題。
在目前市面上大部分的主動式電子標籤,為了省電採用微控制器(microcontroller)進行週期性偵測電路運作的
方式,判斷周圍是否有基地台發送觸發信號,然後再開啟無線電收發器(transceiver)和基地台溝通。最常看到的方法是使用一顆具接收和發射功能的無線電收發器IC(transceiver IC),應用其高靈敏度的接收模式,週期性的判斷附近是否有基地台在呼叫。在增加及降低接收訊號週期,俾使電池使用壽命增加及降低,於縮短接收週期時,該電池壽命亦隨之縮短;然而為增加該電池使用壽命,即將該接收週期增加,俾使錯失基地台呼叫之風險增加。
因此,如何降低主動式電子標籤耗電量,使該主動式電子標籤電池壽命提高,並降低錯失基地台呼叫之風險,乃為目前主動式電子標籤系統業者亟待解決之重要技術問題。
鑒於上述習知技術之缺點,本發明之主要目的在於提供一種省電電子標籤作動方式,藉由內建微處理器特定數位信號,以解決信號誤判所產生不必要電源消耗問題。
本發明另一目的在於提供一種省電電子標籤作動方式,藉由內建特定數位資料,以避免周圍相同信號的干擾。
因此,本發明之省電電子標籤作動方式,係包括提供一信號至一脈波產生模組,該脈波產生模組係具有一微處理器(microcontroller)及一特定數位資料庫,並包括一電性連接該脈波產生模組之信號調變器,其中,由該特定數
位資料庫進行信號辨識,並同時產生一觸發信號至該微處理器,該觸發信號係可驅動該微處理器,俾使該微處理器由休眠(sleep)模式下啟動,並使該微處理器(microcontroller)進入正常工作模式,使該微處理器產生一驅動信號至一電源控制模組,藉以提供電源至一信號調變器(ASK),其中該脈波產生模組內,具有提供該微處理器的特定數位資料,可避免該微處理器因信號判斷錯誤,產生不必要之電源浪費,且該微處理器於休眠狀態下之電源消耗係小於20μA以下。
以下係藉由特定的具體實例說明本發明之實施方式,熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本創作之其他優點與功效。
請參閱第一圖所示,係為本發明較佳具體之實施流程示意圖。如圖所示,在該具體實施中,該流程主要包括三大部分:脈波產生模組10、電源控制模組20以及信號調變器30。其中,該脈波產生模組10係具有一微處理器11,及可提供微處理器11動作之特定數位資料庫12,俾使該微處理器11產生一驅動信號至信號調變器30,避免週圍相同頻段信號干擾,及微處理器11誤判或誤動作,增加不必要的電源消耗,藉以達到省電的目的。
請參閱第二圖所示,係為本發明串接兩倍壓之電路圖。如圖所示,
(1)在交流電壓源V1負半週輸出時,二極體D1為順向導
通ON的狀態,而D2為OFF狀態,電流方向如紅色箭頭的方向,如圖三所示,係為本發明電流負方向之示意圖。此時C1會被充電至V1的峰值電壓Vm。
(2)在交流電壓源V1正半週輸出時,D1為OFF的狀態,D2為ON的狀態,如圖四所示,係為本發明電流正方向之示意圖。此時除了V1之外,C1在負半週時儲存的電量極性和V1相同,因此C2會被充電至2Vm。
由上可知,本發明之省電電子標籤作動方式係整合脈波產生模組、電源控制模組以及信號調變器,該脈波產生模組係串接四級相同之倍壓電源,並在第四級輸出之後加上工作運算放大器和比較器,提供足夠微處理器(microcontroller)判斷的觸發信號,以及基頻信號的電壓準位。電路中的二極體我們選用應用於RF/IF功率偵測之二極體,能夠將輸入高頻信號的功率大小轉換成直流電壓準位,同時亦具有極低的順向導通電壓,以提高電路之靈敏。
上述之實施例僅為例示性說明本發明之特點及其功效,而非用於限制本發明之實質技術內容的範圍。任何熟習此技藝之人士均可在不違背本發明之精神及範疇下,對上述實施例進行修飾與變化。因此,本發明之權利保護範圍,應如後述之申請專利範圍所列。
10‧‧‧脈波產生模組
20‧‧‧電源控制模組
30‧‧‧信號調變器
11‧‧‧微處理器
12‧‧‧數位資料庫
V1、Vm‧‧‧電壓源符號
D1、D2‧‧‧二極體符號
C1、C2‧‧‧電容符號
第1圖係為本發明較佳具體之實施流程示意圖;第2圖係為本發明串接兩倍壓之電路圖;
第3圖係為本發明電流負方向之示意圖;以及第4圖係為本發明電流正方向之示意圖。
10‧‧‧脈波產生模組
20‧‧‧電源控制模組
30‧‧‧信號調變器
11‧‧‧微處理器
12‧‧‧數位資料庫
Claims (4)
- 一種省電電子標籤作動方式,其步驟包括:提供一信號至一脈波產生模組,該脈波產生模組係具有一微處理器(microcontroller)及一特定數位資料庫,由該特定數位資料庫進行信號辨識,並同時產生一觸發信號至該微處理器,該觸發信號係可驅動該微處理器,俾使該微處理器由休眠(sleep)模式下啟動,並進入正常工作模式,使該微處理器產生一驅動信號至一電源控制模組,藉以提供電源至一信號調變器(ASK),其中該脈波產生模組內係具有提供該微處理器的特定數位資料。
- 如申請專利範圍第1項所述之省電電子標籤作動方式,其中該脈波產生模組,係由四級串接的倍壓電路所組成。
- 如申請專利範圍第2項所述之省電電子標籤作動方式,其中該脈波產生模組之倍壓電路係為兩倍壓電路。
- 如申請專利範圍第1項所述之省電電子標籤作動方式,其中該微處理器於休眠狀態下之電源消耗係小於20μA以下。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW099128559A TWI438697B (zh) | 2010-08-26 | 2010-08-26 | Power - saving electronic tags |
US12/960,470 US20120050013A1 (en) | 2010-08-26 | 2010-12-04 | Economic Method for Operating a Passive tag |
EP10196362A EP2423845A3 (en) | 2010-08-26 | 2010-12-21 | Economic method for operating a passive tag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW099128559A TWI438697B (zh) | 2010-08-26 | 2010-08-26 | Power - saving electronic tags |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201209723A TW201209723A (en) | 2012-03-01 |
TWI438697B true TWI438697B (zh) | 2014-05-21 |
Family
ID=45218151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW099128559A TWI438697B (zh) | 2010-08-26 | 2010-08-26 | Power - saving electronic tags |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120050013A1 (zh) |
EP (1) | EP2423845A3 (zh) |
TW (1) | TWI438697B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120126948A1 (en) * | 2006-11-20 | 2012-05-24 | Kevin Michael Brunski | Identification system and method |
JP2013210265A (ja) * | 2012-03-30 | 2013-10-10 | Sysmex Corp | 検体分析装置、精度管理用検体ユニットおよび精度管理方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6593845B1 (en) * | 1998-01-09 | 2003-07-15 | Intermac Ip Corp. | Active RF tag with wake-up circuit to prolong battery life |
AU2002950973A0 (en) * | 2002-08-22 | 2002-09-12 | Magellan Technology Pty Ltd | A radio frequency identification ("rfid") device |
KR100853189B1 (ko) * | 2006-12-08 | 2008-08-20 | 한국전자통신연구원 | 태그 수명 연장을 위한 저전력 무선 인식 태그 및 그 방법 |
JP4823943B2 (ja) * | 2007-03-06 | 2011-11-24 | 均 北吉 | 無線タグ、無線タグリーダ及びパルス符号化鍵検出回路とそれらを用いた無線タグシステム |
US8054160B2 (en) * | 2007-03-09 | 2011-11-08 | Innovation Law Group, Ltd. | RFID tag power conservation system and method |
US8260201B2 (en) * | 2007-07-30 | 2012-09-04 | Bae Systems Information And Electronic Systems Integration Inc. | Dispersive antenna for RFID tags |
US20090167496A1 (en) * | 2007-12-31 | 2009-07-02 | Unity Semiconductor Corporation | Radio frequency identification transponder memory |
KR100958239B1 (ko) * | 2008-03-10 | 2010-05-17 | 엘에스산전 주식회사 | Rfid 태그 |
-
2010
- 2010-08-26 TW TW099128559A patent/TWI438697B/zh active
- 2010-12-04 US US12/960,470 patent/US20120050013A1/en not_active Abandoned
- 2010-12-21 EP EP10196362A patent/EP2423845A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
TW201209723A (en) | 2012-03-01 |
EP2423845A3 (en) | 2012-07-11 |
US20120050013A1 (en) | 2012-03-01 |
EP2423845A2 (en) | 2012-02-29 |
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