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    • 2. 发明申请
    • SYSTEM AND METHOD FOR MONITORING AND DISPLAYING ATHLETE CHARACTERISTICS
    • 用于监视和显示角色特征的系统和方法
    • WO2002101408A1
    • 2002-12-19
    • PCT/AU2002/000760
    • 2002-06-12
    • CITECH SPORTS CORPORATION PTY LTDJOHNSON, Nigel, MaxMANDALOVIC, ChrisNICHOLLS, Arthur, ChristopherHOBBY, Greg, Martin
    • JOHNSON, Nigel, MaxMANDALOVIC, ChrisNICHOLLS, Arthur, ChristopherHOBBY, Greg, Martin
    • G01S5/14
    • G01S1/045G01S5/06
    • A system and method for monitoring and displaying characteristics of one or more athletes, the system including a plurality of tag devices, at least one tag being located on each athlete and being capable of periodically transmitting a tag device signal in the form of a short burst, frequency-hopped spread spectrum radio frequency signal. At least three separately located wideband receivers are capable of receiving a tag device signal and processing the tag device signal to provide data representative of the time of arrival of the tag device signal at the receiver. A centralised processing means receives and processes the time of arrival data from each receiver to determine the position of the tag devices using differences in the time of arrival data from each receiver. The positions determined by the centralized processing means are stored on a data server and are able to be retrieved and processed so as to enable a graphical representation of at least one selected athlete characteristic to be displayed.
    • 一种用于监视和显示一个或多个运动员的特征的系统和方法,所述系统包括多个标签装置,至少一个标签位于每个运动员上,并且能够周期性地以短脉冲形式发送标签装置信号 ,跳频扩频射频信号。 至少三个分开定位的宽带接收机能够接收标签设备信号并处理标签设备信号以提供表示标签设备信号到达接收机的时间的数据。 集中处理装置接收并处理来自每个接收机的到达时间数据,以使用来自每个接收机的到达时间数据的差异来确定标签装置的位置。 由集中处理装置确定的位置存储在数据服务器上,并且能够被检索和处理,以便能够显示至少一个选定的运动员特征的图形表示。
    • 3. 发明申请
    • FLEET POSITION MONITORING SYSTEM
    • FLEET位置监测系统
    • WO00034932A1
    • 2000-06-15
    • PCT/GB1999/004123
    • 1999-12-07
    • G01S1/04G01S5/00G01S5/02G08G1/123G08G1/127
    • G08G1/20G01S1/045G01S5/0027G01S5/02G01S2205/002
    • A system which allows a central control unit to track automatically the positions of a fleet of mobile units. Each mobile unit carries a position updating apparatus which includes means (2) to determine its position, and processing means (4) in the form of computing equipment in communication with the position determining means. The processing means (4) in turn controls a transmitting means (6), such as a radio transmitter of the private mobile radio system that the mobile unit uses for communication, for transmitting information to the central control. The position determining means (2) and processing means (4) are arranged to send the latest position of the mobile unit to the central control at intervals. The processing means (4) stores a number of rules for determining the interval between the transmission of position update messages to the central control. These rules are based upon the direction of travel of the mobile unit and other factors, such as its location.
    • 一种允许中央控制单元自动跟踪移动单元的位置的系统。 每个移动单元携带位置更新装置,其包括用于确定其位置的装置(2)和与位置确定装置通信的计算设备形式的处理装置(4)。 处理装置(4)依次控制诸如移动单元用于通信的专用移动无线电系统的无线电发射机之类的发送装置(6)向中心控制台发送信息。 位置确定装置(2)和处理装置(4)被布置成以间隔将移动单元的最新位置发送到中央控制器。 处理装置(4)存储用于确定位置更新消息传送到中央控制的间隔的多个规则。 这些规则是基于移动单元的行进方向和其他因素,如其位置。
    • 6. 发明申请
    • POSITIONING SYSTEM FOR DIGITAL TELEPHONE NETWORKS
    • 数字电话网络定位系统
    • WO99021028A1
    • 1999-04-29
    • PCT/GB1998/003149
    • 1998-10-21
    • G01S1/02G01S1/04G01S5/00G01S5/10H04Q7/34G01S5/14
    • G01S5/14G01S1/024G01S1/045G01S5/0036G01S5/10
    • The invention relates to determining the position of a mobile receiver (4) in a digital telephone network positioning system. A first receiver (3) is at a known location and others are mobile. The method involves transmitting signals from a plurality of sources (1), the transmission signals having a format at least a portion of which has predetermined values or a portion of which is repeated. The time offset of the transmission signals received at each receiver (4, 5) from a transmission source (1) relative to a reference clock of each receiver is determined by generating a reference signal locked to the reference clock. The reference signal has a similar format to the transmission signals and includes a portion identical to the predetermined values or repeated portion of the received signal and compares the received transmission signal and the reference signal. The time delay between the respective signals received at the receivers (4, 5) is determined from their relative time offset, to thereby determine the position of the other receivers (4).
    • 本发明涉及确定移动接收机(4)在数字电话网络定位系统中的位置。 第一接收器(3)位于已知位置,而另一个接收器是可移动的。 该方法涉及从多个源(1)发送信号,所述发送信号具有其至少一部分具有预定值或重复其一部分的格式。 通过产生锁定到参考时钟的参考信号来确定在每个接收器(4,5)处从发送源(1)相对于每个接收机的参考时钟接收的发送信号的时间偏移。 参考信号具有与发送信号相似的格式,并且包括与接收信号的预定值或重复部分相同的部分,并将接收到的发送信号和参考信号进行比较。 在接收器(4,5)处接收到的各个信号之间的时间延迟由它们的相对时间偏移确定,从而确定其它接收器(4)的位置。
    • 8. 发明申请
    • NARROW FIELD ELECTROMAGNETIC SENSOR SYSTEM AND METHOD
    • 窄场电磁传感器系统及方法
    • WO1996030771A2
    • 1996-10-03
    • PCT/US1996003583
    • 1996-03-15
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIAMcEWAN, Thomas, E.
    • G01R00/00
    • G01F23/284G01S1/045G01S5/14G01S7/285G01S11/02G01S13/003G01S13/0209G01S13/0218G01S13/04G01S13/103G01S13/106G01S13/18G01S13/885G01S2013/9314G01S2013/9321G01V3/12G08B13/2497G08G1/04H04B1/7163
    • A narrow field electromagnetic sensor system and method of sensing a characterisitc of an object provide the capability to realize a characteristic of an object such as density, thickness, or presence, for any desired coordinate position on the object. One application is imaging. The sensor can also be used as an obstruction detector or an electronic trip wire with a narrow field without the disadvantages of impaired performance when exposed to dirt, snow, rain, or sunlight. The sensor employs a transmitter for transmitting a sequence of electromagnetic signals in response to a transmit timing signal, a receiver for sampling only the initial direct RF path of the electromagnetic signal while excluding all other electromagnetic signals in response to a receive timing signal, and a signal processor for processing the sampled direct RF path electromagnetic signal and providing an indication of the characteristic of an object. Usually, the electromagnetic signal is a short RF burst and the obstruction must provide a substantially complete eclipse of the direct RF path. By employing time-of-flight techniques, a timing circuit controls the receiver to sample only the initial direct RF path of the electromagnetic signal while not sampling indirect path electromagnetic signals. The sensor system also incorporates circuitry for ultra-wideband spread spectrum operation that reduces interference to and from other RF services while allowing co-location of multiple electronic sensors without the need for frequency assignments.
    • 用于感测物体特征的窄场电磁传感器系统和方法提供了对物体的任何所需坐标位置实现诸如密度,厚度或存在的物体的特性的能力。 一个应用是成像。 传感器也可以用作狭窄的障碍物检测器或电子跳闸线,而不会受到暴露于污物,雪,雨或阳光下的性能受损的缺点。 该传感器采用发送器,用于响应于发送定时信号发送一系列电磁信号;接收器,用于仅对电磁信号的初始直接RF路径进行采样,同时响应于接收定时信号排除所有其它电磁信号;以及 信号处理器,用于处理采样的直接RF路径电磁信号并提供对象特征的指示。 通常,电磁信号是短的RF突发,并且障碍物必须提供直接RF路径的基本上完全的日食。 通过采用飞行时间技术,定时电路控制接收机仅对电磁信号的初始直接RF路径进行采样,而不对间接路径电磁信号进行采样。 传感器系统还集成了用于超宽带扩频操作的电路,可减少与其他RF服务的干扰,同时允许多个电子传感器的共同定位,而无需频率分配。