CN100339839C - 本质安全的现场维护工具的存储器认证 - Google Patents

本质安全的现场维护工具的存储器认证 Download PDF

Info

Publication number
CN100339839C
CN100339839C CNB2004100433220A CN200410043322A CN100339839C CN 100339839 C CN100339839 C CN 100339839C CN B2004100433220 A CNB2004100433220 A CN B2004100433220A CN 200410043322 A CN200410043322 A CN 200410043322A CN 100339839 C CN100339839 C CN 100339839C
Authority
CN
China
Prior art keywords
result
field maintenance
encrypted
storer
software
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CNB2004100433220A
Other languages
English (en)
Other versions
CN1551035A (zh
Inventor
布拉德·N·马蒂奥维茨
克里斯托弗·P·坎茨
格雷戈里·J·奥菲姆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisher Rosemount Systems Inc
Original Assignee
Fisher Rosemount Systems Inc
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 Fisher Rosemount Systems Inc filed Critical Fisher Rosemount Systems Inc
Publication of CN1551035A publication Critical patent/CN1551035A/zh
Application granted granted Critical
Publication of CN100339839C publication Critical patent/CN100339839C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication

Abstract

提供了一种对现场维护工具的存储器认证技术。非易失性电存储器包括惟一的软件标识符。将不可逆算法应用于所述惟一的软件标识符,以获得结果。然后,对所述结果进行加密,并与事先存储在所述电存储器上的已存储加密结果进行比较。根据该比较,可以完全地使能、完全地禁止或有选择地使能所述工具。

Description

本质安全的现场维护工具的存储器认证
技术领域
本发明涉及本质安全的现场维护工具的存储器认证。
背景技术
本质安全的现场维护工具是已知的。这样的工具在过程控制和测量工业中特别有用,以使操作人员方便地与给定过程安装中的现场设备通信和/或询问给定过程安装中的现场设备。这样的过程安装的实例包括:石油、药品、化学品、纸浆和其他过程安装。在这样的安装中,过程控制和测量网络可以包括几十个或者甚至几百个各种现场设备,这些现场设备周期性地需要维护,以确保这样的设备适当地操作和/或对这些设备进行校准。而且,当检测到过程控制和测量安装中的一个或多个故障时,使用本质安全的手持式现场维护工具使得技术人员能够快速地诊断出现场中的这种故障。
根据从Eden Prairie,Minnesota的费希尔-罗斯蒙德系统公司可得到的商业指定模型275HART通信装置,售出了一种这样的设备。HART是HARTCommunication Foundation的注册商标。模型275提供了许多重要的功能和能力,并且通常允许高效率的现场维护。
本质安全要求用于确保如果将该设备正确地安装在包含爆炸气体的环境中,该设备的操作或故障不能引起燃烧。这可以通过限制在最坏情况的故障状态下存储在发送器中的最大能量来实现。过度的能量释放可能会导致将点燃其中可以操作发射器的爆炸环境的火花或过多的热量。
本质安全标准的示例包括欧洲CENELEC标准EN50014和50020、Factory Mutual标准FM 3610、加拿大标准协会、针对易燃环境中的电设备的英国许可服务、日本工业标准和澳大利亚标准协会。
为了确保与自动化工业安全协议和规范的严格兼容,在这种环境中只能使用由单独的代理商所证实的设备。可拆卸的手持式现场维护工具的任何部件必须以同样满足所有所需安全要求的另一部件来代替。
新型本质安全的手持式现场维护工具的另一困难在于,这样的工具可以具有可变程度的功能性。通常,这些功能性由根据用户所购买的特定功能组而产生的软件选择来控制。由于与这样的设备一起可用的电可拆卸存储介质本质上是便携的,重要的是,提供不仅确保在手持式现场维护工具内所替换的电存储器符合本质安全要求,而且这种存储器包含许可代码而不包含未授权软件的认证方案。
发明内容
提供了一种对现场维护工具的存储器认证技术。非易失性电存储器包括惟一的软件标识符。将不可逆算法应用于所述惟一的软件标识符,以获得结果。然后,对所述结果进行加密,并与事先存储在所述电存储器上的已存储加密结果进行比较。根据此比较,可以完全地使能、完全地禁止或有选择地使能所述工具。
附图说明
图1是其中本发明有用的工业过程控制和测量环境的示意图。
图2是依照本发明实施例,用于认证手持式现场维护工具的电非易失性存储器的方法的流程图。
具体实施方式
图1示出了其中本发明的实施例非常有用的典型系统。系统10包括控制器12、I/O和控制子系统14、本质安全(IS)阻挡器16、过程通信环18和现场设备20。控制器12通过链接21与I/O和控制子系统14相连,所述链接21可以是诸如局域网(LAN)等根据以太网信号控制协议或其他任何适当的协议进行操作的任何适当的链接。I/O和控制子系统14与本质安全阻挡器16相连,并依次与过程通信环18相连,以便按照限制通过其中的能量的方式来实现环18与I/O和控制子系统14之间的数据通信。
在该图示中,过程通信或过程控制环18是FOUNDATIONTM现场总线过程通信环,并与现场设备20相连,所示现场设备20按照多点结构的方式布置。可选的过程通信环(未示出)是HART过程通信环。图1示出了与如星型拓扑等其他拓扑相比极大地简化了系统接线的多点接线结构。多点HART结构支持最多15个设备,而多点FOUNDATIONTM现场总线结构支持最多32个设备。
尽管将参照安全数字(SD)存储卡,对本发明的实施例进行描述,尤其可以想到的是,能够以任何形式的电非易失性存储器来实现本发明的实施例。
安全数字卡是一种非常安全的小型闪速存储器卡。SD卡目前被用在多种消费品中。例如,这些产品包括数字视频便携式摄像机、数字音乐播放器、汽车导航系统、智能电话、电子书籍、便携式电话和手持计算设备等。每个SD卡具有被称为CID的惟一的软件标识符。此软件标识符实质上是惟一的序列号,但可以被定义为表示其他信息。应当注意,CID被永久地存储在SD卡上,并不能通过重新格式化SD卡而加以改变。这种惟一的、不可变的软件标识符可以由手持工具中的应用程序使用,以确保该存储卡被允许用在危险环境中,以及用于认证针对包含在电子存储卡中的软件的软件许可的一个或多个方面。例如,为了防止对软件应用程序的盗版,根据软件标识符(CID),创建标识代码文件(作为隐藏文件驻留在SD卡上)。通过算法来运行软件标识符(CID),并随后对其结果进行加密,从而不能逆转该处理,来产生标识符代码文件。例如,通过对文件校验和的编码,并随后利用键控异或模式对整个文件(包括校验和)进行加密,可以执行此处理。
在将电子存储卡放置在其主机单元(手持式现场维护工具)中时,主机单元中的应用程序读取软件标识符和标识代码文件。然后,主机重复通过算法运行软件标识符并对结果进行加密的处理。然后,将此结果与包含在标识代码文件中的结果进行比较。只有具有有效标识代码文件的卡才会与主机产生的结果相匹配。只有这样的单元才会起作用。在发生了失配的单元中,将禁止该工具的全部或部分功能。如果将标识代码文件从一个SD卡拷贝到另一SD卡,主机所产生的结果将不与包含在标识代码文件中的结果相匹配。于是,主机将使用新SD卡的软件标识符,而文件却包含利用原始的软件标识符产生的结果。
为了增加此认证技术的灵活性,所述算法也可以包括一系列的选项,用于使所得到的标识符代码文件对于一个或多个选中选项是唯一的。例如,这包括允许对手持式工具进行编程的选项、以及允许在工具上执行FOUNDATIONTM现场总线应用程序的选项。
一旦上述处理确定电存储卡对于与手持式现场维护工具一起使用是有效的,则该工具可以读取该标识符代码文件,以确定在该手持式工具上使能了哪些选项。换句话说,手持式工具可以装载多种选项所需的所有硬件和软件,而只对用户所购买的选项授权,并由此使能那些选项。
对于要许可额外功能性的用户,代替或修改特定SD卡的标识代码文件。这可以通过用包含所需许可的卡替换整个卡来实现,或者可以通过手持式现场维护工具的外部连接来实现。优选地,手持式现场维护工具包含:能够用于对个人计算机或在某些情况下直接对如因特网等网络进行接口的红外数据接入端口。在任一情况下,用户可以访问包含由升级应用程序的网站或其他目的地。当用户启动该处理时,做出请求,以便将软件标识符和许可信息传递到因特网数据库。然后,如服务器等远程设备上的交互应用程序将显示电子介质卡的许可标识。然后,用户可以选择他或她想要添加的额外的功能性。此时,实施金融交换、口令或管理此特征的其他适当方式。一旦此步骤完成,通过新标识代码文件,创建基于SD卡软件标识符和新许可的功能性的标识代码文件。通过便携式计算机和红外数据接入接口,将此新文件发送到便携式工具。现在,此主机单元将包含基于新许可的功能性。
标识代码文件还最好包含识别SD卡的信息,以符合或满足在危险区域中使用的一个或多个必须的安全性标准。因此,不仅有利于软件许可,而且对许可存储卡的使用有时将会出现在过程工业领域中的危险环境中。
图2是用于认证手持式现场维护设备的电非易失性存储器以及/或者认证其上的软件许可的方法的流程图。在方框100,启动如桌面计算机等外部计算设备上的应用程序。最好通过红外数据接入端口,将外部计算设备与手持式现场维护工具22相连,并且在方框102,询问手持式现场维护工具,以建立外部计算设备与手持式现场维护工具之间的通信。
在方框104,确定手持式现场维护工具是否已经成功建立了与外部计算设备之间的通信。如果还未建立通信,控制通过方框106返回到再次尝试通信的方框102。在手持式现场维护工具未建立与外部计算设备之间的通信的情况下,从外部计算设备向手持式现场维护工具发送请求,请求该工具向外部计算设备提供该工具的软件版本信息,如方框108所示。随后,在方框110,从手持式现场维护工具询问可编程许可状态。在方框112,查看询问到的信息,以确定软件版本和许可状态是否为当前的。如果该确定是否定的,控制转向方框114,确定手持式现场维护工具是否为安全性标记的。换句话说,确定标识代码文件是否包含指示了手持式现场维护工具内的SD卡符合所需的安全性规则的信息。
如果针对安全性规则,对手持式现场维护工具进行了标记,控制转向方框116,向应用程序发送信息,使用户确认升级。如果用户确认了升级,控制转向方框118,向手持式现场维护工具传递升级的手持式现场维护工具软件和/或许可信息。在方框118之后,控制返回到方框108,其中,再次查询手持式现场维护工具的软件版本信息。
如果在方框116期间,用户并未确认软件和/或功能性升级,控制转向方框120,在方框120,确定应用程序的用户是否完成了维护/传送操作。如果用户表示他或她已完成了该操作,控制转向方框122,其中,结束外部计算设备上的应用程序。但是,如果用户表示需要进一步的维护,则控制转向方框124,并执行维护处理。如果在方框120,用户表示请求传送处理,则控制转向发起该处理的方框126。
返回到方框114处关于手持式现场维护工具是否被安全性标记的确定,如果确定为否定的,则控制转向方框128,其中确定电存储器是否为可编程的。如果存储器是不可编程的,控制转向方框120。但是,如果存储器是可编程的,控制转向方框116,之后,则如上所述。
尽管已经参照优选实施例,对本发明进行了描述,本领域的技术人员将意识到,在不偏离本发明的精神和范围的前提下,可以进行形式和细节上的改变。例如,尽管上面利用存储器上的惟一软件标识符描述了认证,也可以使用如手持式工具的序列号等另外的惟一标识符,将存储器卡与手持式工具加以实质上的锁定。

Claims (8)

1、一种用于认证手持式现场维护工具中的电可拆卸存储器的方法,所述方法包括:
将不可逆算法应用于所述存储器上的惟一软件标识符,以获得结果;
对所述结果进行加密;
将所述已加密结果与存储在所述存储器上的已存储的加密结果进行比较;以及
根据该比较,有选择地使能所述工具。
2、根据权利要求1所述的方法,其特征在于有选择地使能所述工具包括:如果所述已加密结果与所述已存储加密结果不匹配,则完全禁止所述工具。
3、根据权利要求1所述的方法,其特征在于有选择地使能所述工具包括:根据比较来使能所选择的工具功能。
4、根据权利要求1所述的方法,其特征在于所述已存储加密结果表示在危险环境中所使用的允许。
5、根据权利要求1所述的方法,其特征在于所述已存储加密结果表示软件许可的认证。
6、根据权利要求1所述的方法,其特征在于所述存储器是安全数字存储器。
7、根据权利要求1所述的方法,其特征在于所述存储器符合本质安全。
8、一种为手持式现场维护工具添加功能性的方法,所述方法包括:
访问所述工具中的非易失性电存储器上的软件标识符;
接收与所添加的功能有关的用户选择;
根据用户选择,对所述软件标识符执行不可逆算法,以获得结果;
对所述结果进行加密;以及
将所述已加密结果存储在所述非易失性电存储器上。
CNB2004100433220A 2003-05-16 2004-05-14 本质安全的现场维护工具的存储器认证 Expired - Fee Related CN100339839C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/440,041 2003-05-16
US10/440,041 US7526802B2 (en) 2003-05-16 2003-05-16 Memory authentication for intrinsically safe field maintenance tools

Publications (2)

Publication Number Publication Date
CN1551035A CN1551035A (zh) 2004-12-01
CN100339839C true CN100339839C (zh) 2007-09-26

Family

ID=33417961

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100433220A Expired - Fee Related CN100339839C (zh) 2003-05-16 2004-05-14 本质安全的现场维护工具的存储器认证

Country Status (2)

Country Link
US (1) US7526802B2 (zh)
CN (1) CN100339839C (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050099832A1 (en) * 2003-11-12 2005-05-12 Agere Systems, Incorporated System and method for securing an integrated circuit as against subsequent reprogramming
EP2162809A2 (en) * 2007-06-13 2010-03-17 Fisher-Rosemount Systems, Inc. Improved functionality for handheld field maintenance tools
WO2011005938A2 (en) * 2009-07-09 2011-01-13 Rosemount Inc. Process variable transmitter with two-wire process control loop diagnostics
US9201414B2 (en) * 2010-07-28 2015-12-01 Fisher-Rosemount Systems, Inc. Intrinsically-safe handheld field maintenance tool with image and/or sound capture
CN102842003A (zh) * 2012-07-24 2012-12-26 惠州Tcl移动通信有限公司 一种可识别sd卡的移动终端及其识别sd卡的方法
US10303891B2 (en) * 2014-12-30 2019-05-28 Data I/O Corporation Automated manufacturing system with job packaging mechanism and method of operation thereof
US20160292400A1 (en) * 2015-03-30 2016-10-06 Honeywell International Inc. Sd card license mechanism
US10367612B2 (en) 2015-09-30 2019-07-30 Rosemount Inc. Process variable transmitter with self-learning loop diagnostics

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1024601C (zh) * 1989-01-10 1994-05-18 任天堂株式会社 防止使用未许可外部存储器的装置
US6055633A (en) * 1997-10-28 2000-04-25 Honeywell Inc. Method of reprogramming memories in field devices over a multidrop network
CN1278642A (zh) * 1999-06-16 2001-01-03 株式会社东芝 存储媒体及使用此存储媒体的内容的保护方法
US6236334B1 (en) * 1994-10-24 2001-05-22 Fischer-Rosemount Systems, Inc. Distributed control system for controlling material flow having wireless transceiver connected to industrial process control field device to provide redundant wireless access
CN1316706A (zh) * 2000-03-30 2001-10-10 曼内斯曼Vdo股份公司 具有受保护存储介质的汽车导航系统
WO2002005241A1 (de) * 2000-07-06 2002-01-17 Endress + Hauser Gmbh + Co. Kg. Feldgerät mit funkverbindung
WO2002086633A2 (de) * 2001-04-23 2002-10-31 Siemens Aktiengesellschaft Feldgerät mit sicherheitslayer zum anschluss an ein feldbussystem

Family Cites Families (126)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387619A (en) * 1919-07-26 1921-08-16 Morris G Rosenthal Sewing-machine
US3774693A (en) 1970-12-23 1973-11-27 Orthman Manufacturing Agricultural implement
GB1441808A (en) * 1973-07-31 1976-07-07 Coal Industry Patents Ltd Intrinsically safe power supply apparatus
DE7830544U1 (de) * 1978-10-13 1979-02-08 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid Gelenkbeschlag fuer sitze, mit verstellbarer rueckenlehne, insbesondere kraftfahrzeugsitze
US4337516A (en) * 1980-06-26 1982-06-29 United Technologies Corporation Sensor fault detection by activity monitoring
JPH0619666B2 (ja) * 1983-06-30 1994-03-16 富士通株式会社 故障診断処理方式
US4707796A (en) 1983-10-19 1987-11-17 Calabro Salvatore R Reliability and maintainability indicator
US4535636A (en) * 1984-03-19 1985-08-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Tensile testing apparatus
US4630265A (en) 1984-09-26 1986-12-16 General Electric Company Method and apparatus for selecting for use between data buses in a redundant bus communication system
US4630483A (en) 1985-07-24 1986-12-23 Engdahl Paul D Peak accelerograph
US4825392A (en) * 1986-08-20 1989-04-25 Freeman Mark S Dual function DMM display
US4749934A (en) * 1986-11-07 1988-06-07 Alexander Manufacturing Company Intrinsically safe battery circuit
US5005142A (en) * 1987-01-30 1991-04-02 Westinghouse Electric Corp. Smart sensor system for diagnostic monitoring
US4988990A (en) * 1989-05-09 1991-01-29 Rosemount Inc. Dual master implied token communication system
US4964125A (en) 1988-08-19 1990-10-16 Hughes Aircraft Company Method and apparatus for diagnosing faults
US4954923A (en) * 1988-08-19 1990-09-04 Cooper Industries, Inc. Intrinsic safety module interface
US5197328A (en) * 1988-08-25 1993-03-30 Fisher Controls International, Inc. Diagnostic apparatus and method for fluid control valves
EP0369489A3 (en) * 1988-11-18 1991-11-27 Omron Corporation Sensor controller system
JP2714091B2 (ja) * 1989-01-09 1998-02-16 株式会社日立製作所 フィールド計器
JPH0650557B2 (ja) 1989-07-04 1994-06-29 株式会社日立製作所 フィールド計器の通信方式
US5113303A (en) * 1990-03-29 1992-05-12 Cooper Industries, Inc. Grounding detection circuit
US5150289A (en) * 1990-07-30 1992-09-22 The Foxboro Company Method and apparatus for process control
US5099539A (en) * 1990-12-06 1992-03-31 Forester Glen R Telescoping extension rod having pivotably adjustable tool head
GB9208704D0 (en) 1992-04-22 1992-06-10 Foxboro Ltd Improvements in and relating to sensor units
CA2097558C (en) * 1992-06-16 2001-08-21 William B. Kilgore Directly connected display of process control system in an open systems windows environment
US5412312A (en) * 1992-10-01 1995-05-02 Snap-On Incorporated Frequency and instantaneous voltage level meter
US5501107A (en) * 1993-02-23 1996-03-26 Snyder; Robert F. Torque tool
US5426774A (en) * 1993-04-06 1995-06-20 Honeywell Inc. Method for maintaining a sequence of events function during failover in a redundant multiple layer system
US5549137A (en) 1993-08-25 1996-08-27 Rosemount Inc. Valve positioner with pressure feedback, dynamic correction and diagnostics
US5481200A (en) * 1993-09-15 1996-01-02 Rosemont Inc. Field transmitter built-in test equipment
US5442639A (en) * 1993-10-12 1995-08-15 Ship Star Associates, Inc. Method and apparatus for monitoring a communications network
US5471698A (en) 1993-11-26 1995-12-05 Innovation Development, Inc. Hand tool having interchangeable accessories
US5434774A (en) * 1994-03-02 1995-07-18 Fisher Controls International, Inc. Interface apparatus for two-wire communication in process control loops
US5623605A (en) * 1994-08-29 1997-04-22 Lucent Technologies Inc. Methods and systems for interprocess communication and inter-network data transfer
US5793963A (en) * 1994-10-24 1998-08-11 Fisher Rosemount Systems, Inc. Apparatus for providing non-redundant secondary access to field devices in a distributed control system
DE4442944B4 (de) 1994-12-02 2005-05-19 Hess, Martin, Dipl.-Ing. Schutzkasten zur Anbringung und Halterung an einer Meßgeräteinstallation
US5650777A (en) 1995-06-07 1997-07-22 Rosemount Inc. Conversion circuit for process control system
US5742845A (en) * 1995-06-22 1998-04-21 Datascape, Inc. System for extending present open network communication protocols to communicate with non-standard I/O devices directly coupled to an open network
US5982899A (en) * 1995-08-11 1999-11-09 International Business Machines Corporation Method for verifying the configuration the computer system
US6076124A (en) 1995-10-10 2000-06-13 The Foxboro Company Distributed control system including a compact easily-extensible and serviceable field controller
US6304934B1 (en) 1995-10-13 2001-10-16 Smar Research Corporation Computer to fieldbus control system interface
US6714969B1 (en) * 1995-11-17 2004-03-30 Symbol Technologies, Inc. Mobile terminal with integrated host application software
US5697453A (en) 1995-11-20 1997-12-16 Van Den Bosch; Lenard Subsurface cutting tool
US5940290A (en) * 1995-12-06 1999-08-17 Honeywell Inc. Method of predictive maintenance of a process control system having fluid movement
PL327615A1 (en) * 1996-01-17 1998-12-21 Siemens Ag Automation apparatus
US5665889A (en) * 1996-01-22 1997-09-09 Industrial Technology Research Institute Method for the production of N-vinyl-2-pyrrolidone by vinylation
US6094600A (en) * 1996-02-06 2000-07-25 Fisher-Rosemount Systems, Inc. System and method for managing a transaction database of records of changes to field device configurations
US5764891A (en) * 1996-02-15 1998-06-09 Rosemount Inc. Process I/O to fieldbus interface circuit
US5665899A (en) 1996-02-23 1997-09-09 Rosemount Inc. Pressure sensor diagnostics in a process transmitter
US6907383B2 (en) * 1996-03-28 2005-06-14 Rosemount Inc. Flow diagnostic system
US6539267B1 (en) * 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US6017143A (en) 1996-03-28 2000-01-25 Rosemount Inc. Device in a process system for detecting events
US5995916A (en) 1996-04-12 1999-11-30 Fisher-Rosemount Systems, Inc. Process control system for monitoring and displaying diagnostic information of multiple distributed devices
US5909368A (en) * 1996-04-12 1999-06-01 Fisher-Rosemount Systems, Inc. Process control system using a process control strategy distributed among multiple control elements
US5771287A (en) * 1996-08-01 1998-06-23 Transcrypt International, Inc. Apparatus and method for secured control of feature set of a programmable device
DE19634997C2 (de) * 1996-08-30 1999-08-05 Voith Sulzer Papiermasch Gmbh Regeleinrichtung mit einer Sensoren-Mehrzahl
US6023399A (en) * 1996-09-24 2000-02-08 Hitachi, Ltd. Decentralized control system and shutdown control apparatus
BR9712194A (pt) * 1996-10-04 1999-08-31 Fisher Controls Int Interface entre uma rede de comunicações e um sistema de controle de processo, programa de software que implementa uma interface entre uma rede de comunicações e um sistema de controle de processo para execução em um processador, artigo de fabricação implementando uma interface de programa de software entre uma rede de comunicações e um sistema de controle de processo para execução em um processador, e, interface adaptada a fim de ser acoplada entre uma rede de comunicações remota e um sistema de controle de processo.
CN101135906A (zh) * 1996-10-04 2008-03-05 费希尔控制产品国际有限公司 运用于过程控制网络中的维护接口装置
US6047222A (en) * 1996-10-04 2000-04-04 Fisher Controls International, Inc. Process control network with redundant field devices and buses
US5970430A (en) 1996-10-04 1999-10-19 Fisher Controls International, Inc. Local device and process diagnostics in a process control network having distributed control functions
US6754601B1 (en) * 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
US5956663A (en) * 1996-11-07 1999-09-21 Rosemount, Inc. Signal processing technique which separates signal components in a sensor for sensor diagnostics
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US5828567A (en) 1996-11-07 1998-10-27 Rosemount Inc. Diagnostics for resistance based transmitter
US6434504B1 (en) * 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6519546B1 (en) * 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6601005B1 (en) * 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US5752249A (en) * 1996-11-14 1998-05-12 Macon, Jr.; Charles E. System and method for instantiating a sharable, presistent parameterized collection class and real time process control system embodying the same
US5838187A (en) 1997-02-10 1998-11-17 Lucent Technologies Inc. Integrated circuit thermal shutdown system utilizing a thermal sensor
US5980078A (en) 1997-02-14 1999-11-09 Fisher-Rosemount Systems, Inc. Process control system including automatic sensing and automatic configuration of devices
JPH10261185A (ja) * 1997-03-19 1998-09-29 Hitachi Ltd 入出力混在形信号変換器
US6091968A (en) * 1997-06-12 2000-07-18 Nortel Networks Corporation Call switching system based on type of call
US5923557A (en) * 1997-08-01 1999-07-13 Hewlett-Packard Company Method and apparatus for providing a standard interface to process control devices that are adapted to differing field-bus protocols
US6370448B1 (en) * 1997-10-13 2002-04-09 Rosemount Inc. Communication technique for field devices in industrial processes
US6037778A (en) * 1997-11-05 2000-03-14 Stat Engineering Company, L.L.C. Electronic battery testing device and method for testing batteries
KR100321964B1 (ko) * 1998-01-05 2002-02-02 인터내셔널 렉터파이어 코퍼레이션 전집적 안정기 집적회로
US6098095A (en) * 1998-02-26 2000-08-01 Tektronix, Inc. Instrument communication through signal jacks
US6199018B1 (en) * 1998-03-04 2001-03-06 Emerson Electric Co. Distributed diagnostic system
US6270920B1 (en) * 1998-03-19 2001-08-07 Sanyo Electric Co., Ltd. Battery module and container for battery module
US6111738A (en) * 1998-05-22 2000-08-29 Diagnostic Instruments Ltd. Intrinsically safe circuits
FI114745B (fi) 1998-06-01 2004-12-15 Metso Automation Oy Kenttälaitteiden hallintajärjestelmä
FI108678B (fi) 1998-06-17 2002-02-28 Neles Controls Oy Kenttälaitteiden hallintajärjestelmä
US6312364B1 (en) 1998-08-19 2001-11-06 Douglas Spriggs Selsam Blow-moldable water-filled freeweights
US6611775B1 (en) * 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US7206646B2 (en) * 1999-02-22 2007-04-17 Fisher-Rosemount Systems, Inc. Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control
DE10011233B4 (de) 1999-03-12 2007-07-12 Sanyo Electric Co., Ltd., Moriguchi Batterieeinheit
US6309986B1 (en) 1999-05-07 2001-10-30 S. C. Johnson & Son, Inc. Mat for dispensing volatile materials
US6386456B1 (en) 1999-06-04 2002-05-14 International Business Machines Corporation Memory card identification system
US6356191B1 (en) * 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
JP4824234B2 (ja) 1999-07-01 2011-11-30 ローズマウント インコーポレイテッド 2線式温度送信機およびプロセス温度測定方法
US6505517B1 (en) * 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6294287B1 (en) 1999-08-18 2001-09-25 The Gillette Company Alkaline cell with insulator
US6701274B1 (en) * 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6636242B2 (en) * 1999-08-31 2003-10-21 Accenture Llp View configurer in a presentation services patterns environment
US6487462B1 (en) 2000-01-22 2002-11-26 G. George Reeves Selective process data logger with instant replay
US6594621B1 (en) * 2000-03-06 2003-07-15 James H. Meeker System and method for determining condition of plant
US7043641B1 (en) * 2000-03-08 2006-05-09 Igt Encryption in a secure computerized gaming system
JP4079572B2 (ja) * 2000-04-14 2008-04-23 松下電器産業株式会社 電池パック
US6775271B1 (en) * 2000-05-17 2004-08-10 Intel Corporation Switching system and method for communicating information at a customer premises
US6789205B1 (en) * 2000-05-19 2004-09-07 Motorola, Inc. System for determining intrinsic safety status of the combination of a communication device and a battery
US6697828B1 (en) * 2000-06-01 2004-02-24 Sun Microsystems, Inc. Optimized method and apparatus for parallel leading zero/one detection
US6539384B1 (en) * 2000-06-02 2003-03-25 Bellsouth Intellectual Property Corporation Browser on test equipment
US7103344B2 (en) * 2000-06-08 2006-09-05 Menard Raymond J Device with passive receiver
DE60018072T2 (de) * 2000-10-27 2005-12-29 Invensys Systems, Inc., Foxboro Feldgerät mit einem Sender und/oder Empfänger zur drahtlosen Datenübertragung
JP2002199915A (ja) * 2000-12-28 2002-07-16 Seiko Instruments Inc 腕装着型電子機器
US20040148503A1 (en) * 2002-01-25 2004-07-29 David Sidman Apparatus, method, and system for accessing digital rights management information
JP3815231B2 (ja) * 2001-02-16 2006-08-30 日本電気株式会社 携帯機器向け移動エージェント転送システム、携帯機器及び移動エージェント転送方法
US6598828B2 (en) 2001-03-05 2003-07-29 The United States Of America As Represented By The Secretary Of The Navy Integral data acquisition capacity
US20030023408A1 (en) * 2001-03-06 2003-01-30 Robin Wight System for collecting and storing information
US6993664B2 (en) * 2001-03-27 2006-01-31 Microsoft Corporation Method and system for licensing a software product
US6733376B2 (en) * 2001-05-01 2004-05-11 John Douglas Williams Hand sanding tool
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US7149597B2 (en) * 2001-05-29 2006-12-12 John Billings Process control system and method
US6851612B2 (en) * 2001-07-20 2005-02-08 Siemens Building Technologies, Inc. Portable diagnostic device
US6959356B2 (en) * 2001-07-30 2005-10-25 Fisher-Rosemount Systems, Inc. Multi-protocol field device and communication method
EP1454202B1 (en) * 2001-12-06 2005-11-02 Fisher-Rosemount Systems, Inc. Intrinsically safe field maintenance tool
US7035877B2 (en) * 2001-12-28 2006-04-25 Kimberly-Clark Worldwide, Inc. Quality management and intelligent manufacturing with labels and smart tags in event-based product manufacturing
US7039744B2 (en) * 2002-03-12 2006-05-02 Fisher-Rosemount Systems, Inc. Movable lead access member for handheld field maintenance tool
US7027952B2 (en) * 2002-03-12 2006-04-11 Fisher-Rosemount Systems, Inc. Data transmission method for a multi-protocol handheld field maintenance tool
JP4206688B2 (ja) * 2002-04-15 2009-01-14 ソニー株式会社 データ処理装置及びデータ処理方法
US10261506B2 (en) * 2002-12-05 2019-04-16 Fisher-Rosemount Systems, Inc. Method of adding software to a field maintenance tool
US20040172526A1 (en) * 2003-02-27 2004-09-02 Tann Johnathan P. Universal loader for portable electronic devices
US6834347B2 (en) * 2003-04-29 2004-12-21 International Business Machines Corporation Target self-security for upgrades for an embedded device
US20060094466A1 (en) * 2004-10-20 2006-05-04 Bao Tran Systems and methods for providing expansion to wireless communicators

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1024601C (zh) * 1989-01-10 1994-05-18 任天堂株式会社 防止使用未许可外部存储器的装置
US6236334B1 (en) * 1994-10-24 2001-05-22 Fischer-Rosemount Systems, Inc. Distributed control system for controlling material flow having wireless transceiver connected to industrial process control field device to provide redundant wireless access
US6055633A (en) * 1997-10-28 2000-04-25 Honeywell Inc. Method of reprogramming memories in field devices over a multidrop network
CN1278642A (zh) * 1999-06-16 2001-01-03 株式会社东芝 存储媒体及使用此存储媒体的内容的保护方法
CN1316706A (zh) * 2000-03-30 2001-10-10 曼内斯曼Vdo股份公司 具有受保护存储介质的汽车导航系统
WO2002005241A1 (de) * 2000-07-06 2002-01-17 Endress + Hauser Gmbh + Co. Kg. Feldgerät mit funkverbindung
WO2002086633A2 (de) * 2001-04-23 2002-10-31 Siemens Aktiengesellschaft Feldgerät mit sicherheitslayer zum anschluss an ein feldbussystem

Also Published As

Publication number Publication date
US7526802B2 (en) 2009-04-28
CN1551035A (zh) 2004-12-01
US20040230821A1 (en) 2004-11-18

Similar Documents

Publication Publication Date Title
CN102404310B (zh) 预置装置
US20230196233A1 (en) Fleet management system for portable maintenance tools
US11144630B2 (en) Image capture devices for a secure industrial control system
CN102742243B (zh) 检查用于ied的配置修改的方法及装置
CN107450386B (zh) 模块化安全控制装置
CN100339839C (zh) 本质安全的现场维护工具的存储器认证
CN105531635A (zh) 安全工业控制系统
CN103097970A (zh) 用于对机器人控制器提供安全远程访问的系统和方法
CN106327649A (zh) 基于二维码的门禁系统及开门方法
US10558787B2 (en) Threat-monitoring systems and related methods
US20040111238A1 (en) Method of adding software to a field maintenance tool
JP7085826B2 (ja) 安全な産業用制御システムのためのイメージ・キャプチャ・デバイス
CN105278398A (zh) 工业控制系统中的操作员动作认证
EP3667526B1 (en) Rapid file authentication on automation devices
JP2006146909A (ja) 電子制御システムにおける入力署名
CN110073334B (zh) 对环境中的待安装设备进行识别和编程的计算机实现方法和系统
MXPA02006908A (es) Monitoreo remoto de usuarios de automatizacion de fabrica.
CN103140317B (zh) 用于管理焊接设备中的许可的系统和方法
CN1717692A (zh) 特别是在过程自动化技术设备的情况中用于用户身份识别的方法
CN1382270A (zh) 阻止对模块,特别是对自动化系统模块非授权访问的系统和方法
US11314854B2 (en) Image capture devices for a secure industrial control system
US8418255B2 (en) Method for the secure transmission of operating data
CN107392050A (zh) 一种电子监管码的印后即焚的实现系统及其方法
EP4155993A1 (en) Systems and methods for authenticating industrial automation components
US20220239641A1 (en) Engineering Control System, Technical Installation and Method and System for Awarding Publicly Trusted Certificates

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070926

Termination date: 20190514

CF01 Termination of patent right due to non-payment of annual fee