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    • 1. 发明授权
    • Recording of operational events in an automotive vehicle
    • 在汽车上记录运行事件
    • US5581464A
    • 1996-12-03
    • US320603
    • 1994-10-11
    • Jerry D. WollBryan D. WollVan R. Malan
    • Jerry D. WollBryan D. WollVan R. Malan
    • B60R16/02B60W30/00G01S7/04G01S13/93G06F17/40G07C5/00G07C5/08G08G1/00G06F13/00
    • G07C5/0858G01S13/931G01S2013/9321G01S2013/9353G01S7/046
    • An apparatus and method for recording operational events in an automotive radar system. The invention provides an Event Recording Apparatus (ERA) that records selectable vehicle performance, operational status, and/or environment information, including information useful for accident analysis and updated software for use by a system processor capable of reading data from the ERA. The preferred embodiment of the ERA comprises a non-volatile solid-state memory card, a memory card adapter located in a vehicle, and a microprocessor, either as part of the memory card or embedded in a system within the vehicle, for controlling the storage of data within the memory card. The ERA is configured to store such vehicle information as the closing rate between the recording vehicle and targets located by the vehicle's radar system, distance between the recording vehicle and targets, vehicle speed, and such vehicle operational status and environment information as braking pressure, vehicle acceleration or deceleration, rate of turning, steering angle, hazard levels determined from a radar system processor, target direction, cruise control status, vehicle engine RPM, brake temperature, brake line hydraulic pressure, windshield wiper status, fog light status, defroster status, and geographic positioning information. In addition, the ERA can be configured to function as a common trip monitor, recording distance travelled, average speed, miles-per-gallon, fuel remaining, compass direction of travel, etc. The device can also record vehicle maintenance information, such as oil temperature, engine temperature, transmission fluid temperature, and engine timing.
    • 一种在汽车雷达系统中记录操作事件的装置和方法。 本发明提供了一种事件记录装置(ERA),其记录可选择的车辆性能,操作状态和/或环境信息,包括有用于事故分析的信息和由能够从ERA读取数据的系统处理器使用的更新的软件。 ERA的优选实施例包括非易失性固态存储卡,位于车辆中的存储卡适配器和作为存储卡的一部分或嵌入在车辆内的系统中的微处理器,用于控制存储器 的存储卡内的数据。 ERA被配置为存储车辆信息,如记录车辆与车辆雷达系统所定位的目标之间的关闭速度,记录车辆与目标之间的距离,车速以及车辆操作状态和环境信息,如制动压力,车辆 雷达系统处理器确定的加速或减速,转向速度,转向角度,危险等级,目标方向,巡航控制状态,车辆发动机转速,制动温度,制动液压液压,挡风玻璃刮水器状态,雾灯状态,除霜状态, 和地理定位信息。 此外,ERA可以配置为作为公共行程监视器,记录行驶距离,平均速度,每加仑英里,剩余燃料,行驶罗盘方向等。该设备还可以记录车辆维护信息,例如 油温,发动机温度,传动液温度和发动机正时。
    • 3. 再颁专利
    • Monopulse azimuth radar system for automotive vehicle tracking
    • 用于汽车跟踪的单脉冲方位雷达系统
    • USRE36819E
    • 2000-08-15
    • US661525
    • 1996-06-11
    • Robert C. GellnerBryan D. WollJerry D. WollJohn W. DavisDuane G. Tubbs
    • Robert C. GellnerBryan D. WollJerry D. WollJohn W. DavisDuane G. Tubbs
    • G01S7/40G01S13/34G01S13/44G01S13/72G01S13/93G01S13/92
    • G01S13/44G01S13/348G01S13/72G01S13/931G01S2013/9375G01S7/4004
    • A monopulse vehicular radar system for tracking a target about an automotive vehicle senses a transmitted signal reflected back from the target and received at two different locations, determines the sum and the difference of the reflected signals sensed at the two locations, and compares the sum and difference to determine the deviation of the target from a reference azimuth. A source frequency provided by a Gunn diode is applied to and transmitted by a two-lobe monopulse antenna. The antenna lobes detect the reflected signals from the target by sensing them at the two different lobes. A hybrid junction provides sum and difference signals to mixers which homodyne the signals to produce sum and difference Doppler frequency signals using the source frequency. The Doppler frequency signals are amplified and then compared to determine the deviation of the target from the reference azimuth. The comparison process can be done digitally by converting the amplified frequency signals to digital signals which are then processed in a digital signal processor, or the comparison may be done in analog fashion using a phase/quotient detector. The range or distance of the target is determined by shifting the source frequency between two frequencies during transmission and frequency shifting the sum and difference Doppler frequency signals in similar fashion following reception by the antenna.
    • 用于跟踪关于机动车辆的目标的单脉冲车辆雷达系统感测从目标反射并在两个不同位置处接收的发射信号,确定在两个位置处感测到的反射信号的和和差,并将和 差异来确定目标与参考方位角的偏差。 由耿氏二极管提供的源极频率由双脉冲单脉冲天线施加并传输。 天线波瓣通过在两个不同的波瓣处感测它们来检测来自目标的反射信号。 混合连接为混频器提供和和差分信号,该混频器使用源频率产生和差和多普勒频率信号产生差分信号。 多普勒频率信号被放大,然后进行比较以确定目标与参考方位角的偏差。 可以通过将放大的频率信号转换为数字信号,然后在数字信号处理器中进行处理,数字地进行比较处理,或者可以使用相位/商检测器以模拟方式进行比较。 目标的范围或距离通过在传输期间移动两个频率之间的源频率并且通过天线接收之后以类似的方式对和差和差分多普勒频率信号进行频移来确定。