CN113767391A - 用于在移动设备上映射nfc场强和位置的方法 - Google Patents

用于在移动设备上映射nfc场强和位置的方法 Download PDF

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CN113767391A
CN113767391A CN202080032290.1A CN202080032290A CN113767391A CN 113767391 A CN113767391 A CN 113767391A CN 202080032290 A CN202080032290 A CN 202080032290A CN 113767391 A CN113767391 A CN 113767391A
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凯文·奥斯本
大卫·伍姆菲尔德
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Abstract

各种实施例针对用于映射或可视化诸如移动计算设备的对象的磁场及其相关联的场强的方法和系统。磁场的示例源可以是被配置在对象中的近场通信(NFC)读取器。计算机视觉系统或设备可以跟踪布置在磁场强度检测器附近或其上的视觉标记，以便关联、匹配或映射检测器在对象上的不同位置或定位处的磁场强度测量结果读数。计算机视觉系统可以至少基于磁场强度测量结果及其相对位置来生成和显示对象的热图。

Description

用于在移动设备上映射NFC场强和位置的方法
相关申请的交叉引用
本申请要求于2019年12月23日提交的题为“METHOD FOR MAPPING NFC FIELDSTRENGTH AND LOCATION ON MOBILE DEVICES”的美国专利申请序列号16/725,600的优先权。前面提及的申请的内容通过引用整体并入本文。
背景技术
近场通信(Near-field communication，NFC)是使得两个电子组件(其中一个可以是便携式设备，诸如智能电话)能够通过使它们彼此紧邻来建立通信的通信协议。然而，NFC读取器或线圈通常被布置在不同移动设备上的不同位置，这导致不同的NFC性能特征。因此，需要在支持NFC的移动设备和其他类型的非接触式读取器上定位和可视化NFC读取器的最活跃区域。
发明内容
各种实施例涉及用于映射或可视化诸如移动计算设备的对象的磁场及其相关联的场强的方法和系统。磁场的示例源可以是被配置在对象中的近场通信(NFC)读取器。计算机视觉系统或设备可以跟踪布置在磁场强度检测器附近或其上的视觉标记，以便关联、匹配或映射检测器在对象上的不同位置或定位处的磁场强度测量结果读数。计算机视觉系统可以至少基于磁场强度测量结果及其相对位置来生成和显示对象的热图。
附图说明
图1示出了根据一个或多个实施例的示例磁场强度映射系统。
图2示出了根据一个或多个实施例的示例磁场强度检测器。
图3示出了根据一个或多个实施例的示例热图。
图4示出了根据一个或多个实施例的磁场强度映射系统的另一示例。
图5示出了根据一个或多个实施例的示例流程图。
图6示出了根据一个或多个实施例的流程图的另一示例。
图7示出了根据一个或多个实施例的计算设备的示例计算架构。
图8示出了根据一个或多个实施例的示例通信架构。
具体实施方式
各种实施例总体上涉及一种用于测量移动计算设备上的不同位置处的磁场强度并在热图上可视化或可视地显示测量出的磁场强度的方法和系统。术语“热图”可以被理解为广义地表示呈图或图表的形式的数据(例如测量结果强度)的图形表示，其中不同的数据值可以以不同的颜色表示。
在一个实施例中，磁场强度检测设备或检测器可以包括至少磁力计。磁场强度检测器可以使用磁力仪在诸如智能电话、膝上型电脑、平板电脑等移动计算设备上的不同位置处检测磁场强度，例如NFC磁场强度。在示例中，一个或多个视觉标记可以被布置在检测器上或被布置为相对于检测器邻近(例如在磁力计附近或在磁力计上)，在进行测量的同时可以通过计算机视觉系统对该一个或多个视觉标记进行跟踪。可以将NFC场强读数提供给视觉系统，该视觉系统可以用于创建在移动计算设备上的不同位置处测量的磁场或NFC场强的热图。如下文将进一步描述的那样，热图可以被绘制或显示在移动计算设备的数字图像上。
在另一实施例中，磁场强度检测器可以包括一个或多个不同类型的传感器，诸如霍尔效应传感器、线圈等。一个或多个传感器可以用于基于由一个或多个传感器检测的不同水平的NFC或磁振荡在移动计算设备上的不同位置处输出不同的电压值。在示例中，电压值可以用于确定所测量的位置处的相应磁场或NFC场强测量结果。计算机视觉系统可以用于跟踪相对于检测器的一个或多个视觉标记，并产生磁场强度的热图。
根据实施例，磁场强度检测器可以是棒状设备，或者另外地可以具有棒状形状。例如，棒状设备的端头可以由磁力计、传感器等形成，其可以耦合或连接到可以容纳在棒状设备的手柄部分中的处理电路系统。在示例中，可由计算机视觉系统跟踪的一个或多个视觉标记可以被布置在棒状设备的端头处。此外，磁场强度检测器可以有线或无线地将所测量的磁场强度值传送到计算机视觉系统，以便可视化所测量的值。
在一个示例先前解决方案中，磁场观察膜用于示出磁源的静止或缓慢变化的磁场。然而，观察膜可能不拥有精确映射源自电子对象的不同部分的磁场强度所需的灵敏度。本文描述的实施例和示例通过生成对象的精确可视化(例如热图)克服了先前解决方案中存在的问题，这些精确可视化至少指示从对象发出的磁场(诸如来自配置在智能电话中的NFC读取器的磁场)的位置、源和强度。因此，特定对象上或内的磁场源的位置和最活跃区域可以被快速和准确地标识。
现在参考附图，其中相同的附图标记始终用于指代相同的元件。在以下描述中，出于解释的目的，阐述了许多具体细节，以便提供对其的透彻理解。然而，显而易见的是，可以在没有这些具体细节的情况下实践新颖的实施例。在其他情况下，以框图形式示出了公知的结构和设备以便对其进行描述。意图是覆盖权利要求的范围内的所有修改、等同物和替代性方案。
图1示出了根据实施例的示例磁场强度映射系统100。如所示出的那样，映射系统100可以至少包括磁场强度检测器101、计算机视觉设备111和移动设备120。磁场强度检测器101可以用于检测移动设备120上的不同位置处的各种磁场强度，这可以由计算机视觉设备111通过跟踪磁场强度检测器101上的一个或多个视觉标记来可视化。
例如，磁场强度检测器101可以包括至少一个或多个磁力计102、处理电路系统104、存储器106和一个或多个视觉标记108。可以理解的是，磁力计可以是测量磁场(例如，通量密度、场方向、场强和/或特定位置处的磁场方面的一个或多个相对变化等)的任何设备、传感器或硬件组件。处理电路系统104可以是任何处理机制，例如硬件(中央处理单元、处理器、ASIC、现场可编程门阵列等)、软件等，并且与存储器106一起可以促进和执行由一个或多个磁力计102进行的磁场测量的处理。在示例中，一个或多个视觉标记106可以布置在检测器101上的任何地方，使得计算机视觉设备111能够“观看”和跟踪一个或多个标记106，以便将特定磁场测量值与移动设备120上的特定的所测量的方位相关联。如下文将进一步描述的那样，在一些示例中，视觉标记可以布置在磁力计本身上。此外，虽然未示出，但是可以理解的是，磁场强度检测器101还可以包括接口组件，用于允许检测器101至少与计算机视觉设备111传送测量值。
如图1进一步所示，计算机视觉设备111可以包括至少一个或多个相机112、处理电路系统114、存储器116和显示器118。此外，可以理解的是，计算机视觉设备还可以包括用于与检测器101通信或从检测器101接收磁场测量结果或测量值的接口组件。在示例中，一个或多个相机112可以是数字、模拟、可见光相机或用于获取图像数据(如果实施一个以上的相机，则其可以呈多图像或视频序列的形式，或者呈多维图像数据的形式)的任何合适的图像捕获设备。相机112可以在每个特定位置跟踪一个或多个视觉标记108，并确定是否存在与这个位置相关联的相应磁场强度测量结果。如下面将进一步描述的那样，使用处理电路系统114和存储在存储器116中的可执行程序，计算机视觉设备111可以至少部分地基于一个或多个视觉标记的跟踪和相关联的测量结果，在移动设备120的图像(其也可以由相机112拍摄)上可视化、映射或“绘制”各种磁场强度测量结果的热图。
移动设备120可以是任何类型的移动计算设备，诸如智能电话、平板电脑、可穿戴计算机、膝上型电脑等。如所示出的那样，磁场的示例源可以是NFC读取器122(以及其他相关NFC组件，例如，NFC读取器线圈)。例如，由检测器101和计算机视觉设备111对移动设备120的磁场强度测量结果进行的可视化(例如，热图)可以表明朝向移动设备120的顶部(NFC读取器122位于其中)检测出最强的磁场测量结果。因此，有利的是，场强测量结果的热图可以在视觉上向用户指示NFC读取器的“最佳位置”在移动设备120的中上部部分处。
可以理解的是，图1中的所示出的磁场强度映射系统100和其中的组件为了便于解释已经被简化，并且是非限制性示例。由此，可以存在比图1的磁场强度检测器101、计算机视觉设备111和移动设备120中示出的组件更多(或更少)的组件。此外，可以理解的是，计算机视觉设备111和其中的组件可以是计算机视觉系统的一部分，其可以包括通过网络连接的其他计算机视觉设备和组件。
图2示出了根据实施例的示例磁场强度检测器200。如上所述，磁场强度检测器200可以至少包括可以通过一个或多个线206耦合的磁力计202和处理电路系统以及存储器204。至少处理电路系统和存储器204可以布置在外壳208中。如所示出的那样，磁场强度检测器200通常可以具有棒状形状，其中磁力计202可以形成棒的端头，并且外壳208可以形成手柄。在示例中，线206可以以刚性方式配置(例如，线本身可以是刚性的，线可以缠绕在一起以形成刚性结构，线可以封装在刚性外壳中)，使得线配置可以充分保持或适应磁力计202的重量。至少在这方面，线206可以形成棒的细长主体的总体结构。
如图2进一步所示，视觉标记210可以布置在磁力计202上。视觉标记可以是指示位置、位置、地点等的任何类型的视觉辅助，只要标记可被计算机视觉系统或设备的一个或多个相机跟踪。虽然布置在磁力计202上的视觉标记210是黑色圆点，但是可以理解的是，它可以是任何形状、颜色、有色形状、有色点、可视图案等。例如，它可以是星形、三角形或矩形。在一些示例中，视觉标记可以是可以由计算机视觉系统检测用于例如以增强现实的形式至少向用户再现信息的机器可读代码。
根据实施例，用户可以在移动设备的外表面上挥动、悬停或扫描检测器200的端头，例如磁力计202。在相对于移动设备的第一位置，磁力计202可以测量第一磁场强度。类似地，磁力计202可以在相对于移动设备的第二位置处测量第二磁场强度，可以在第三位置处测量第三磁场强度，在第四位置处测量第四磁场强度等。诸如图1的计算机视觉设备111的计算机视觉设备可以在第一位置处测量第一磁场强度时跟踪视觉标记器210，并且从检测器200接收第一磁场强度测量结果(不一定以任何特定顺序)。当在第二位置处测量第二磁场强度时，视觉标记210被跟踪，并且测量结果被计算机视觉设备接收。这同样适用于第三位置、第四位置等。
在一些示例中，磁场强度检测器200可以被配置为基于源自源的信号频率来确定一个或多个磁场的源，并且在确定这个源时，向计算机视觉设备提供这样的信息。例如，如果所检测的信号频率在13和14MHz之间，则检测器200可以确定该信号是NFC。如果信号频率在1850和1990MHz之间，这种信号的源可能是蜂窝式的。
此后，计算机视觉设备可以基于磁场强度测量结果(例如，第一场强测量结果、第二场强测量结果、第三测量结果、第四测量结果)生成移动设备的热图。如下面将讨论的那样，热图可以可视地指示移动设备上的相应测量位置处的磁场强度，并且可以进一步以颜色或其他方式指示磁场强度的程度、相对于其他测量的位置、从移动设备发射的信号的类型、所测量的场的源等。
图3示出了根据实施例的在诸如智能电话的移动设备上检测的各种磁场及其各自强度的示例热图300。如所示出那样，热图300可以被覆盖在智能电话的一个或多个数字图像上，诸如智能电话的前部图像304和后部图像306。从智能电话的前侧，热图300可以指示磁场308在左上部分上的存在。表示磁场308的最内环的线可以是彩色编码的(例如，红色)，或者如图所示，比其他线画得更粗以指示磁场在这个区域中最强。在磁场308从最内部向外扩展时，场强可能较弱，如由表示中间和最外部环的较细线所指示(或者可以分别以橙色和黄色进行颜色编码)。还示出了通常较大的磁场310，其可能非常弱，如虚线所示(或者另外地由表示非常弱的磁场强度的颜色(诸如蓝色)所示)。
从智能电话的后侧，磁场308和310可以以与前侧相同的方式(但是被翻转)被指示、表示或显示。可以理解的是，虽然图3示出了智能电话的前部图像和后部图像304和306，但是在一些示例中，热图300可以仅示出前侧或者仅示出后侧，或者与用户最相关的任何侧部。例如，如果相比于后侧，对磁场的源308的检测在前侧上更强，则在热图300中可以仅对用户显示前侧。此外，在一些示例中，热图300还可以基于由检测器提供的相关信息来显示所显示的磁场的源，例如，NFC源、蜂窝式源等。
如图3所示，热图300向用户指示最强磁场的源可能位于智能电话的左上角(从前侧)处。在一些实施例中，用户可以配置热图300来选择性地显示和颜色编码磁场的源。例如，描绘磁场的环和线可以是特定的颜色或颜色(例如，红色)的阴影，而对应于不同源的磁场可以由不同的颜色或颜色(例如，紫色)的阴影来表示。此外，可以理解的是，各种图形或图像可以进一步被覆盖或显示在热图300上。例如，单词“NFC”或NFC芯片的图像可以被显示在描绘磁场308的环的中心。
图4示出了根据实施例的磁场强度映射系统400的替代性示例。如所示出的那样，映射系统400的组件和设置类似于图1的磁场强度映射系统100。磁场强度检测器401包括至少一个或多个传感器402、处理电路系统404、存储器406和一个或多个视觉标记408。此外，计算机视觉设备411可以包括一个或多个相机412、处理电路系统414、存储器416和显示器418。然而，在图4中，用于检测磁场强度的一个或多个传感器402可以与图1的系统中使用的磁力计不同或不同地配置。
在一个示例中，传感器402可以是霍尔效应传感器。可以理解的是，霍尔效应传感器可以是用于通过提供与通过传感器的磁场强度成正比的输出电压来测量磁场的幅值的设备。在另一示例中，传感器402可以是线圈，其可以被配置为类似于霍尔效应传感器。因此，磁场强度检测器401的一个或多个传感器可以提供移动设备上的各种测量位置或定位处的电压值。电压值可以用于确定这些位置或定位处的相应磁场强度测量结果。在一些示例中，模数转换器可以与线圈传感器结合使用，以测量模拟磁振荡或NFC振荡的电压电平。
类似于图1的计算机视觉设备111，计算机视觉设备411可以跟踪一个或多个视觉标记408，并接收各种磁场强度测量结果以至少生成热图，如上所述。
图5示出了根据一个或多个实施例的示例流程图500。例如，流程图500描述了对应于图1的磁场强度映射系统的映射过程。可以理解的是，与所示的框相关联的特征可以由包括在磁场强度检测器和计算机视觉设备(诸如图1所示的磁场强度检测器和计算机视觉设备)中的处理电路系统来执行或运行。
在框502处，磁场强度检测器(例如，具体而言，检测器的磁力计)可以用于测量相对于对象的第一位置和第二位置处的磁场强度。例如，对象可以是智能电话、膝上型电脑、平板计算设备、可穿戴计算设备或移动计算设备。可以理解的是，也可以测量第三位置、第四位置、第五位置等处的磁场强度，如上所述。
在框504处，第一磁场强度测量结果和第二磁场强度测量结果可以被提供给至少一个计算设备。在示例中，计算设备可以是计算机视觉设备。在框506处，可以由计算机视觉设备的至少一个相机捕获对象的一个或多个图像。如上所述，可以使用对象的图像，使得例如热图可以覆盖在其上。
在框508处，计算机视觉设备可以跟踪视觉标记，当或在对象上的第一位置和第二位置处进行磁场强度测量时，视觉标记可以被布置在磁场强度检测器上。在框510处，可以由计算机视觉设备接收第一磁场强度测量结果和第二磁场强度测量结果。因此，在一些示例中，框504、508和510可以同时或几乎同时实时执行，因为其中描述的过程可能是相关的。
在框512处，可以由计算机视觉设备或计算机视觉系统至少部分地基于接收到的第一磁场强度测量结果和第二磁场强度测量结果来生成对象的磁热图。如上所述，热图可以可视地指示在框506处捕获的对象的图像上的第一磁场强度和第二磁场强度(以及其他所测量的磁场强度)。在示例中，热图数据可以被覆盖在对象图像上。在示例中，磁场的源及其相关联的场强可以是集成在对象中的NFC读取器线圈。
可以理解的是，图5中示出的框不限于任何特定的顺序。一个或多个框可以同时或几乎同时地执行或运行。
图6示出了根据一个或多个实施例的示例流程图600。例如，流程图600描述了对应于图4的磁场强度映射系统的映射过程，特别是由磁场强度检测器执行的过程。可以理解的是，与所示出的框相关联的特征可以由磁场强度检测器(诸如图4中示出的磁场强度检测器)中包括的处理电路系统来执行或运行。
在框602处，磁场强度检测器的处理电路系统可以从传感器接收相对于对象(例如，智能电话、膝上型电脑等)的第一位置处的第一电压值。如上所述，传感器可以是被配置为输出与传感器检测的磁场的幅值成正比的电压值的霍尔效应传感器或线圈传感器。类似地，在框604处，可以接收相对于对象的第二位置处的第二电压值。还可以由检测器接收第三位置、第四位置、第五位置等处的附加电压值。
在框606处，可以由处理电路系统基于第一电压值来确定第一位置处的第一磁场强度测量结果。因此，例如，如果第一位置处的电压值相对地大于其他电压值，则可以确定与其他位置相比，第一位置处的磁场强度更强或更大。此外，在框608处，可以基于第二电压值来确定第二位置处的第二磁场强度测量结果。
在框610处，可以将第一磁场强度测量结果和第二磁场强度测量结果提供给至少一个计算设备，例如计算机视觉设备，以便生成对象的磁热图。计算机视觉设备如上所述可以跟踪布置在磁场强度检测器上的视觉标记，并将接收到的场强测量结果与视觉标记被跟踪和定位的地方相匹配。至少基于这个过程，热图可以被生成并显示在显示设备上，其中，例如，磁场的各种强度可以是彩色编码的、不同阴影的、形状的等。
可以理解的是，图6中示出的框不限于任何特定的顺序。一个或多个框可以同时或几乎同时地执行或运行。
图7示出了例如适用于实施如前所述的各种实施例的计算设备(诸如台式计算机、膝上型计算机、平板计算机、移动计算机、智能电话等)的示例性计算架构700的实施例。在一个实施例中，计算架构700可以包括或被实施为系统的一部分，这将在下面进一步描述。在示例中，一个或多个计算设备及其处理电路系统可以被配置为至少运行、执行、支持或提供磁场强度映射系统(诸如计算机视觉设备)的一个或多个方面和相关功能。可以理解的是，计算架构700的一个或多个组件也可以被实施或配置在上述磁场检测器中。
如在本申请中所使用的那样，术语“系统”和“组件”旨在指代计算机相关的实体，硬件、硬件和软件的组合、软件或者执行中的软件，它们的示例由示例性计算架构700提供。例如，组件可以是但不限于在处理器上运行的进程、处理器、硬盘驱动器、多个存储驱动器(光和/或磁存储介质)、对象、可执行文件、执行的线程、程序和/或计算机。举例来说，运行在服务器上的应用和服务器两者可以是组件。一个或多个组件可以驻留在进程和/或执行的线程中，并且组件可以位于一台计算机上和/或分布在两台或多台计算机之间。进一步，组件可以通过各种类型的通信介质彼此通信耦接，以协调操作。协调可以包括单向或双向的信息交换。例如，组件可以以通过通信介质传送的信号的形式传送信息。该信息可以被实施为被分配给各种信号线的信号。在这种分配中，每个消息是信号。然而，另外的实施例可以替代性地采用数据消息。这种数据消息可以通过各种连接发送。示例性连接包括并行接口、串行接口和总线接口。
计算架构700包括各种常见的计算元件，诸如一个或多个处理器、多核处理器、协处理器、存储器单元、芯片组、控制器、外围设备、接口、振荡器、定时设备、视频卡、声卡、多媒体输入/输出(I/O)组件、电源等等。然而，实施例不限于由计算架构700实施。
如图7所示，计算架构700包括处理器704、系统存储器706和系统总线708。处理器704可以是各种可商购处理器、处理电路系统、中央处理器(CPU)、专用处理器、现场可编程门阵列(field-programmable gate array，FPGA)等中的任何一种。
系统总线708为系统组件提供接口，包括但不限于系统存储器706到处理器704的接口。系统总线708可以是几种类型的总线结构中的任何一种，这些总线结构还可以互连到使用各种可商购的总线架构中的任何一种的存储器总线(具有或不具有存储器控制器)、外围总线和本地总线。接口适配器可以通过插槽架构连接到系统总线708。示例插槽架构可以包括但不限于加速图形端口(Accelerated Graphics Port，AGP)、卡总线、(扩展)工业标准架构((Extended)Industry Standard Architecture，(E)ISA)、微通道架构(MicroChannel Architecture，MCA)、外围组件互连(扩展)(Peripheral ComponentInterconnect(Extended)，PCI(X))、PCI Express、个人计算机存储卡国际协会(PersonalComputer Memory Card International Association，PCMCIA)等。
计算架构700可以包括或实施各种制造品。一种制品可以包括用于存储逻辑的计算机可读存储介质。计算机可读存储介质的示例可以包括能够存储电子数据的任何有形介质，包括易失性存储器或非易失性存储器、可移动或不可移动存储器、可擦除或不可擦除存储器、可写或可重写存储器等。逻辑的示例可以包括使用任何合适类型的代码实施的可执行计算机程序指令，诸如源代码、编译代码、解释代码、可执行代码、静态代码、动态代码、面向对象代码、可视代码等。实施例还可以至少部分地被实施为包含在非暂时性计算机可读介质中或其上的指令，这些指令可以由一个或多个处理器读取和执行以使得能够执行本文描述的操作。
系统存储器706可以包括呈一个或多个高速存储器单元的形式的各种类型的计算机可读存储介质，诸如只读存储器(read-only memory，ROM)、随机存取存储器(random-access memory，RAM)、动态随机存取存储器(dynamic RAM，DRAM)、双数据速率DRAM(Double-Data-Rate DRAM，DDRAM)、同步DRAM(synchronous DRAM，SDRAM)、静态RAM(staticRAM，SRAM)、可编程ROM(programmable ROM，PROM)、可擦除可编程ROM(erasableprogrammable ROM，EPROM)、电可擦除可编程ROM(electrically erasable programmableROM，EEROM)、闪存、诸如铁电聚合物存储器的聚合物存储器、双向存储器、相变或铁电存储器、氧化硅氮化物氧化硅(silicon-oxide-nitride-oxide-silicon，SONOS)存储器、磁卡或光卡、诸如独立盘冗余阵列(Redundant Array of Independent Disk，RAID)驱动器的设备阵列、固态存储器设备(例如，USB存储器、固态驱动器(solid state drive，SSD))以及适于存储信息的任何其他类型的存储介质。在图7中示出的所示出的实施例中，系统存储器706可以包括非易失性存储器710和/或易失性存储器712。基本输入/输出系统(basic input/output system，BIOS)可以存储在非易失性存储器710中。
计算机702可以包括呈一个或多个低速存储单元形式的各种类型的计算机可读存储介质，包括内部(或外部)硬盘驱动器(hard disk drive，HDD)714、从可移动磁盘718读取或向其写入的磁软盘驱动器(floppy disk drive，FDD)716、以及从可移动光盘722(例如，CD-ROM或DVD)读取或向其写入的光盘驱动器720。HDD 714、FDD 716和光盘驱动器720可以分别通过HDD接口724、FDD接口726和光盘驱动器接口728连接到系统总线708。用于外部驱动器实施方式的HDD接口724可以包括通用串行总线(Universal Serial Bus，USB)和IEEE1394接口技术中的至少一种或两种。
驱动器和相关联的计算机可读介质提供数据、数据结构、计算机可执行指令等的易失性和/或非易失性存储。例如，多个程序模块可以被存储在驱动器和存储器单元710、712中，包括操作系统730、一个或多个应用732、其他程序模块734和程序数据736。在一个实施例中，一个或多个应用732、其他程序模块734和程序数据736可以包括例如系统800的各种应用和/或组件。
用户可以通过一个或多个有线/无线输入设备，例如键盘738和定点设备(诸如鼠标740)，将命令和信息输入到计算机702中。其他输入设备可以包括麦克风、红外(infra-red，IR)遥控器、射频(radio-frequency，RF)遥控器、游戏垫、触笔、读卡器、软件狗、指纹读取器、手套、图形板、操纵杆、键盘、视网膜读取器、触摸屏(例如，电容式触摸屏、电阻式触摸屏等)、轨迹球、触控板、传感器、触控笔等。这些和其他输入设备通常通过耦合到系统总线708的输入设备接口742连接到处理器704，但是也可以通过其他接口连接，诸如并行端口、IEEE 1394串行端口、游戏端口、USB端口、IR接口等。
监视器744或其他类型的显示设备也通过诸如视频适配器746的接口连接到系统总线708。监视器744可以在计算机702的内部或外部。除了监视器744之外，计算机通常包括其他外围输出设备，诸如扬声器、打印机等。
计算机702可以使用经由有线和/或无线通信到一个或多个远程计算机(例如远程计算机748)的逻辑连接在网络化环境中操作。远程计算机748可以是工作站、服务器计算机、路由器、个人计算机、便携式计算机、基于微处理器的娱乐器具、对等设备或其他公共网络节点，并且通常包括相对于计算机702描述的许多或所有元件，尽管为了简洁起见，仅示出了存储器/存储装置750。所描绘的逻辑连接包括到局域网(LAN)752和/或更大网络(例如广域网(WAN)754)的有线/无线连接。这种LAN和WAN联网环境在办公室和公司中是常见的，并且促进了企业范围的计算机网络，例如内部网，所有这些都可以连接到全球通信网络，例如因特网。
当在LAN联网环境中使用时，计算机702通过有线和/或无线通信网络接口或适配器756连接到LAN 752。适配器756可以促进到LAN 752的有线和/或无线通信，该LAN还可以包括设置在其上的无线接入点，用于与适配器756的无线功能进行通信。
当在WAN联网环境中使用时，计算机702可以包括调制解调器758，或者连接到WAN754上的通信服务器，或者具有用于在WAN 754上建立通信的其他手段，诸如通过互联网。调制解调器758(其可以是在有线和/或无线设备内部或外部)通过输入设备接口742连接到系统总线708。在网络化环境中，相对于计算机702描绘的程序模块或其部分可以被存储在远程存储器/存储装置750中。应当理解的是，所示的网络连接是示例性的，并且可以使用在计算机之间建立通信链路的其他手段。
计算机702可操作来使用IEEE 802系列标准与有线和无线设备或实体通信，诸如可操作地设置处于无线通信中的无线设备(例如，IEEE 802.11空中调制技术)。这至少包括Wi-Fi(或无线保真)、WiMax和蓝牙无线技术等。因此，通信可以是与常规网络一样的预定义结构，或者仅仅是至少两个设备之间的ad hoc通信。Wi-Fi网络使用称为IEEE 802.118(a、b、g、n等)的无线电技术来提供安全、可靠、快速的无线连接。无线网络可以用于将计算机相互连接、连接到互联网和有线网络(这些有线网络使用与IEEE 802.3相关的媒体和功能)。
前面参照图1至图6描述的设备的各种元件可以包括各种硬件元件、软件元件或两者的组合。硬件元件的示例可以包括设备、逻辑设备、组件、处理器、微处理器、电路、处理器、电路元件(例如，晶体管、电阻器、电容器、电感器等)、集成电路、专用集成电路(application specific integrated circuit，ASIC)、可编程逻辑器件(programmablelogic device，PLD)、数字信号处理器(digital signal processor，DSP)、现场可编程门阵列(field programmable gate array，FPGA)、存储器单元、逻辑门、寄存器、半导体器件、芯片、微芯片、芯片组等。软件元件的示例可以包括软件组件、程序、应用、计算机程序、应用程序、系统程序、软件开发程序、机器程序、操作系统软件、中间件、固件、软件模块、例程、子例程、函数、方法、过程、软件接口、应用接口(application program interface，API)、指令集、计算代码、计算机代码、代码段、计算机代码段、字、值、符号或其任意组合。然而，确定实施例是否使用硬件元件和/或软件元件来实施可以根据许多因素而变化，诸如期望的计算速率、功率水平、耐热性、处理周期预算、输入数据速率、输出数据速率、存储器资源、数据总线速度和其他设计或性能约束，如给定实施方式所期望那样。
图8是描绘适用于实施各种实施例的示例性通信架构800的框图。例如，一个或多个计算设备可以通过诸如网络的通信框架彼此通信。连接到网络的至少第一计算设备可以是计算机视觉设备。连接到网络的至少第二计算设备可以是不同的计算机视觉设备。在示例中，第一计算设备和第二计算设备可以是更大的计算机视觉系统或网络的一部分。
通信架构800包括各种公共通信元件，诸如发射器、接收器、收发器、无线电、网络接口、基带处理器、天线、放大器、滤波器、电源等。然而，实施例不限于由通信架构800实施。
如图8所示，通信架构800包括一个或多个客户端802和服务器804。一个或多个客户端802和服务器804可操作地连接到可用于存储相应的客户端802和服务器804本地的信息(诸如cookies和/或相关联的上下文信息)的一个或多个相应的客户端数据存储装置806和服务器数据存储装置807。
客户端802和服务器804可以使用通信框架810在彼此之间传送信息。通信框架810可以实施任何熟知的通信技术和协议。通信框架810可以被实施为分组交换网络(例如，诸如因特网的公共网络、诸如企业内部网的私有网络等)、电路交换网络(例如，公共交换电话网络)、或者分组交换网络和电路交换网络的组合(具有合适的网关和翻译器)。
通信框架810可以实施被布置成接受、通信和连接到通信网络的各种网络接口。网络接口可以被视为输入/输出(I/O)接口的特殊形式。网络接口可以采用连接协议，包括但不限于直接连接、以太网(例如，厚、薄、双绞10/100/1000BaseT等)、令牌环、无线网络接口、蜂窝网络接口、IEEE 802.7a-x网络接口、IEEE 802.16网络接口、IEEE 802.20网络接口等。进一步，可以使用多个网络接口来参与各种通信网络类型。例如，可以采用多个网络接口来允许通过广播、多播和单播网络进行通信。如果处理要求规定更大的速度和容量，分布式网络控制器架构可以类似地用于汇合、负载平衡，以及以其他方式增加客户端802和服务器804所需的通信带宽。通信网络可以是有线和/或无线网络中的任何一种和它们的组合，包括但不限于直接互连、安全定制连接、专用网络(例如，企业内部网)、公共网络(例如，因特网)、个人区域网(Personal Area Network，PAN)、局域网(Local Area Network，LAN)、城域网(Metropolitan Area Network，MAN)、作为因特网上的节点操作任务(OperatingMissions as Nodes on the Internet，OMNI)、广域网(Wide Area Network，WAN)、无线网络、蜂窝网络和其他通信网络。
以上描述的设备的组件和特征可以使用分立电路系统、专用集成电路(ASIC)、逻辑门和/或单芯片架构的任意组合来实施。进一步，在适当地适用的情况下，可以使用微控制器、可编程逻辑阵列和/或微处理器或前述内容的任意组合来实施设备的特征。注意，硬件、固件和/或软件元件在本文中可以统称或单独称为“逻辑”或“电路”。
至少一个计算机可读存储介质可以包括指令，这些指令在被执行时使得系统执行本文描述的任何计算机实施的方法。
一些实施例可以使用表述“一个实施例”或“实施例”及其派生词来描述。这些术语意味着结合该实施例描述的特定特征、结构或特性被包括在至少一个实施例中。短语“在一个实施例中”在说明书中的不同地方的出现不一定全部指同一实施例。另外，除非另有说明，以上描述的特征被认为可以以任何组合一起使用。因此，任何单独讨论的特征可以彼此结合使用，除非注意这些特征彼此不兼容。
一般参考本文中使用的符号和命名，本文中的详细描述可以根据在计算机或计算机的网络上执行的程序过程来呈现。由本领域技术人员使用这些程序描述和表示来最有效地向本领域其他技术人员传达他们的工作的实质。
程序在此并且通常被认为是导致期望的结果的自洽的操作序列。这些操作是需要对物理量进行物理操控的那些操作。通常，尽管不是必须的，这些量采取能够被存储、传送、组合、比较和以其他方式操控的电、磁或光信号的形式。主要是出于通用的原因，将这些信号称为位、值、元素、符号、字符、项、数字等有时被证明是方便的。然而，应该注意的是，所有这些和类似的术语与适当的物理量相关联，并且仅仅是应用于这些量的方便标签。
进一步，所执行的操控通常被称为诸如相加或比较的术语，这些术语通常与由人类操作员执行的精神操作相关联。在形成一个或多个实施例的一部分的本文描述的操作中的任何一个中，人类操作员的这种能力不是必需的，或者在大多数情况下不是期望的。而是，这些操作是机器操作。
一些实施例可以使用表达“耦接”和“连接”及其派生词来描述。这些术语不一定旨在是彼此同义。例如，一些实施例可以使用术语“连接”和/或“耦接”来描述，以指示两个或更多个元件彼此直接物理或电接触。然而，术语“耦接”也可以表示两个或更多个元件彼此不直接接触，但是仍然彼此合作或交互。
各种实施例还涉及用于执行这些操作的装置或系统。这个装置可以为所需的目的而专门构造，并且它可以由存储在计算机中的计算机程序选择性激活或重新配置。本文中呈现的程序并不固有地与特定的计算机或其他装置相关。各种机器所需的结构将从给出的描述中出现。
要强调的是，提供本公开的摘要是为了允许读者快速确定技术性公开内容的性质。在具有这样的理解的情况下提交的，即其将不用于解释或限制权利要求的范围或含义。此外，在前面的详细描述中，可以看出，出于简化本公开的目的，在单个实施例中将各种特征组合在一起。该公开方法不应被解释为反映了要求保护的实施例需要比每个权利要求中明确陈述的更多的特征的意图。相反，如以下权利要求所反映的那样，发明主题在于少于单个公开实施方式的全部特征。因此，下面的权利要求由此被结合到详细描述中，其中每个权利要求独立地作为分离的实施例。在所附权利要求中，术语“包括(including)”和“其中(inwhich)”分别用作相应术语“包含(comprising)”和“其中(wherein)”的简明英语等价物。此外，术语“第一”、“第二”、“第三”等仅用作标签，并不旨在对它们的对象强加数字要求。
上面已经描述的内容包括所公开的架构的示例。当然，不可能描述组件和/或方法的每一个可想到的组合，但是本领域的普通技术人员可以认识到许多进一步的组合和置换是可能的。因此，新颖性架构旨在涵括落入所附权利要求的精神和范围内的所有这些变更、修改和变化。

Claims (20)

1.一种系统，包括：
装置，其中所述装置包括：
磁力计；
视觉标记；以及
存储器，所述存储器存储可执行指令；
处理电路系统，所述处理电路系统与所述存储器耦合、能够操作来执行所述指令，所述指令在被执行时致使所述处理电路系统：
经由所述磁力计测量相对于对象的第一位置处的第一磁场强度；
经由所述磁力计测量相对于所述对象的第二位置处的第二磁场强度；以及
向至少一个计算设备提供第一磁场强度测量结果和第二磁场强度测量结果；
所述至少一个计算设备，其中所述至少一个计算设备包括：
一个或多个相机；
存储器，所述存储器存储可执行指令；
处理电路系统，所述处理电路系统与所述存储器耦合、操作以执行所述指令，所述指令在被执行时致使所述处理电路系统：
经由所述一个或多个相机捕获所述对象的图像；
当在所述第一位置处测量所述第一磁场强度时，经由所述一个或多个相机跟踪视觉标记；
从所述装置接收所述第一磁场强度测量结果；
当在所述第二位置处测量所述第二磁场强度时，经由所述一个或多个相机跟踪视觉标记；
从所述装置接收所述第二磁场强度测量结果；以及
至少基于接收到的第一磁场强度测量结果和第二磁场强度测量结果生成所述对象的热图，并且
其中所述热图在所述对象的图像上可视地指示所述第一磁场强度和所述第二磁场强度。
2.根据权利要求1所述的系统，其中还致使所述装置的所述处理电路系统：
测量相对于所述对象的第三位置处的第三磁场强度；以及
向所述至少一个计算设备提供第三磁场强度测量结果。
3.根据权利要求2所述的系统，其中还致使所述至少一个计算设备的所述处理电路系统：
当在所述第三位置处测量所述第三磁场强度时跟踪视觉标记；
从所述装置接收所述第三磁场强度测量结果；以及
至少基于接收到的第三磁场强度测量结果来生成所述对象的热图。
4.根据权利要求1所述的系统，其中所述对象是以下中的一个或多个：(i)智能电话、(ii)膝上型电脑、(iii)平板计算设备、(iv)可穿戴计算设备、以及(v)移动计算设备。
5.根据权利要求1所述的系统，其中所述视觉标记被布置在所述磁力计上。
6.根据权利要求5所述的系统，其中所述视觉标记是形状、颜色、有色形状、点、有色点、视觉图案和/或机器可读代码。
7.根据权利要求1所述的系统，其中所述至少一个计算设备是计算机视觉设备。
8.根据权利要求7所述的系统，其中所述第一磁场强度和所述第二磁场强度的源是NFC读取器线圈。
9.根据权利要求1所述的系统，所述装置的所述处理电路系统还被配置为：
基于来自源的一个或多个信号频率确定所述第一磁场和/或所述第二磁场的源；以及
向所述至少一个计算设备提供源。
10.根据权利要求9所述的系统，其中所述至少一个计算设备被配置为选择性地显示所述第一磁场和/或所述第二磁场的源和对所述第一磁场和/或所述第二磁场的源进行颜色编码。
11.根据权利要求1所述的系统，其中所述装置具有棒状形状。
12.一种装置，包括：
传感器；
视觉标记；以及
存储器，所述存储器存储可执行指令；
处理电路系统，所述处理电路系统与所述存储器耦合、能够操作来执行所述指令，所述指令在被执行时致使所述处理电路系统：
从所述传感器接收相对于对象的第一位置处的第一电压值；
从所述传感器接收相对于所述对象的第二位置处的第二电压值；
基于接收到的第一电压值确定所述第一位置处的第一磁场强度测量结果；
基于接收到的第二电压值确定所述第二位置处的第二磁场强度测量结果；以及
向至少一个计算设备提供所述第一磁场强度测量结果和第二磁场强度测量结果；并且
其中所述至少一个计算设备至少基于所述第一磁场强度测量结果和所述第二磁场强度测量结果生成所述对象的热图。
13.根据权利要求12所述的装置，其中所述传感器是霍尔效应传感器或线圈。
14.根据权利要求12所述的装置，其中所述视觉标记被布置在所述传感器上。
15.根据权利要求12所述的装置，其中所述第一位置处的所述第一电压值与通过所述传感器的所述第一磁场强度测量结果的幅值成正比。
16.根据权利要求12所述的装置，其中所述第二位置处的所述第二电压值与通过所述传感器的所述第二磁场强度测量结果的幅值成正比。
17.一种方法，包括：
经由磁力计测量相对于对象的第一位置处的第一磁场强度；
经由所述磁力计测量相对于所述对象的第二位置处的第二磁场强度；
向至少一个计算设备提供第一磁场强度测量结果和第二磁场强度测量结果；
经由所述至少一个计算设备，经由所述一个或多个相机捕获所述对象的图像；
当在所述第一位置处测量所述第一磁场强度时以及当在所述第二位置处测量所述第二磁场强度时，经由一个或多个相机跟踪视觉标记；
经由所述至少一个计算设备接收所述第一磁场强度测量结果和第二磁场强度测量结果；以及
至少基于接收到的第一磁场强度测量结果和第二磁场强度测量结果，经由所述至少一个计算设备生成所述对象的磁热图，并且
其中所述磁热图在所述对象的图像上可视地指示所述第一磁场强度和所述第二磁场强度。
18.根据权利要求17所述的方法，其中所述对象是以下中的一个或多个：(i)智能电话、(ii)膝上型电脑、(iii)平板计算设备、(iv)可穿戴计算设备、以及(v)移动计算设备。
19.根据权利要求17所述的方法，其中所述视觉标记被布置在所述磁力计上。
20.根据权利要求17所述的方法，其中所述至少一个计算设备是计算机视觉设备。
CN202080032290.1A 2019-12-23 2020-11-23 用于在移动设备上映射nfc场强和位置的方法 Pending CN113767391A (zh)

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