Method of transmitting compressed seismic data
    1.
    发明授权
    Method of transmitting compressed seismic data 失效
    压缩地震数据传输方法

    公开(公告)号:US6061299A

    公开(公告)日:2000-05-09

    申请号:US958038

    申请日:1997-10-27

    IPC分类号: G08C15/00 G01V1/22 H04Q9/00

    CPC分类号: G01V1/22

    摘要: The invention relates to a two-phase method of transmitting, to a central station (CS), seismic signals received by seismic receivers (R) and picked up by collecting units (A) disposed in the field. In the first phase, a compression is applied to each seismic trace, the ratio of which is adapted to the duration of a transmission window placed in the time intervals between successive seismic transmission-reception cycles, as well as to the rate of the transmission route used. The compressed trace as a whole is thus transmitted, allowing an operator at central station (CS) to check qualitatively that recording took place correctly in each collecting unit (A) even though he does not have the exact trace available. In the second phase, at the end of the current seismic session for example, the seismic traces are reconstituted in the central station with the necessary accuracy, either by complete transmission of the data preferably after prior compression, or, in certain cases, by transmission of residues eliminated in the first phase for the requirements of the first transmission.

    摘要翻译: 本发明涉及向中心站(CS)发送由地震接收机(R)接收并由设置在现场的收集单元(A)拾取的地震信号的两相方法。 在第一阶段,对每个地震迹线施加压缩,其比例适应于在连续的地震发射 - 接收周期之间的时间间隔内放置的传输窗口的持续时间,以及传输路径的速率 用过的。 因此,整个压缩轨迹被传输,允许中央站(CS)的操作员定性地检查每个收集单元(A)中的记录是否正确地发生,即使他没有准确的跟踪可用。 在第二阶段,例如在当前地震会话结束时,地震迹线以必要的精度在中心站重建,优先在完成传输数据之后,或者在某些情况下,通过传输 的第一阶段消除的残留物用于第一次传输的要求。

    Method and device for synchronizing on an outside event the sampling of
measuring signals through a digitizing assembly of the oversampling type
    2.
    发明授权
    Method and device for synchronizing on an outside event the sampling of measuring signals through a digitizing assembly of the oversampling type 失效
    用于同步外部事件的方法和装置通过超声波类型的数字化组件对测量信号进行采样

    公开(公告)号:US5245647A

    公开(公告)日:1993-09-14

    申请号:US760941

    申请日:1991-09-17

    摘要: A digitalization assembly of the over-sampling type includes an analog to digital converter (2) producing at a frequency F=kf small-format p samples and a digital filter (3) which, through the summation of a certain number n of over-samples, produces validated larger P-format samples at the frequency f, at instants fixed by a clock. In order to readjust the sampling instants in relation to an outside event which can occur at any time, a temporary memory store (5) is inserted between the converter (2) and the filter (3) and, according to the instant of arrival of this event, the appropriate samples to be sent towards the filter for their summation are selected.

    摘要翻译: 过采样型的数字化组件包括以频率F = kf小格式p采样产生的模数转换器(2)和数字滤波器(3),数字滤波器(3)通过一定数量的n个过采样 样本,在时钟固定的时刻以频率f产生经验证的较大的P格式样本。 为了随时重新调整与外部事件相关的采样时刻,在转换器(2)和滤波器(3)之间插入临时存储器(5),根据到达时刻 在此事件中,选择要向滤波器发送的相应样本进行求和。

    RESYNCHRONIZATION OF TEMPORALLY ACQUIRED ENGINE SIGNALS
    3.
    发明申请
    RESYNCHRONIZATION OF TEMPORALLY ACQUIRED ENGINE SIGNALS 有权
    临时获得发动机信号的重新定位

    公开(公告)号:US20080162013A1

    公开(公告)日:2008-07-03

    申请号:US11955480

    申请日:2007-12-13

    IPC分类号: F02D35/02

    摘要: An method of synchronizing a signal coming from at least one sensor positioned on an engine with a periodic event of the engine such as the crankshaft rotation is disclosed having application for engine control. A crankshaft rotation signal indicative of a reference time (TR), with which the engine signal(s) is to be synchronized, is acquired. The effective time difference (D) between the reference time and the time that is the closest to each temporally acquired engine signal is measured. Then the coefficients of a fractional digital compensation filter (FSDF) for compensating for the fractional part (d) of the measured effective time difference are determined. Finally, this digital compensation filter is applied to each temporally sampled engine signal, allowing obtaining of a series of digitized samples resealed from reference time (TR) for each engine signal.

    摘要翻译: 公开了一种使位于发动机上的至少一个传感器的信号与发动机的周期性事件(诸如曲轴旋转)同步的方法,其具有用于发动机控制的应用。 获得指示要同步发动机信号的基准时间(TR)的曲轴旋转信号。 测量参考时间与最接近每个时间获取的发动机信号的时间之间的有效时间差(D)。 然后确定用于补偿测量的有效时间差的分数部分(d)的分数数字补偿滤波器(FSDF)的系数。 最后,该数字补偿滤波器应用于每个时间采样的发动机信号,允许从每个发动机信号的参考时间(TR)获得重新密封的一系列数字化样本。

    Seismic signal acquisition method and device
    4.
    发明授权
    Seismic signal acquisition method and device 失效
    地震信号采集方法及装置

    公开(公告)号:US5563847A

    公开(公告)日:1996-10-08

    申请号:US315592

    申请日:1994-09-30

    CPC分类号: G01V1/223 G01V1/245

    摘要: The arrangement in the field of seismic emission-reception system changes as it progrsses along the profile explored, which modifies the respective distances between the source of seismic signals (S) and each of the siesmic receivers (Ri). In order to take account thereof, each of the acquisition boxes (Bi) used in the field for amplifying, digitizing and storing the siesmic signals received during each emission-reception cycle (or possibly a central station) is provided with a processor for determining automatically the gain to be assigned to the various amplifiers from all of the signals acquired and with selection rules taking into account the level of the signals and their evolution observed over several successive emission-reception cycles. The invention has an application in decentralized automatic control of acquisition devices.

    摘要翻译: 地震发射 - 接收系统领域的布置随着沿着轮廓的演进而发生变化,该轮廓改变了地震信号源(S)和每个接收器(Ri)之间的相应距离。 为了考虑到这一点,在用于放大,数字化和存储在每个发射 - 接收周期期间(或可能的中心站)期间接收的状态信号的现场中使用的每个采集盒(Bi)设置有用于自动确定的处理器 从获取的所有信号中分配给各种放大器的增益和考虑到在几个连续发射 - 接收周期中观测到的信号电平及其演化的选择规则。 本发明在采集装置的分散式自动控制中具有应用。

    Seismic acquisition system with decentralized processing means
    5.
    发明授权
    Seismic acquisition system with decentralized processing means 失效
    地震采集系统采用分散处理手段

    公开(公告)号:US5550787A

    公开(公告)日:1996-08-27

    申请号:US190198

    申请日:1994-02-08

    IPC分类号: G01V1/22 G01V1/28 G08C17/00

    CPC分类号: G01V1/22

    摘要: The system includes a plurality of acquisition devices (A.sub.i) for collecting signals received by receivers (Rk) and a central control, recording and processing station. This station manages the performance of the devices (A.sub.i), of successive signal acquisition cycles and thereafter the centralization thereof. In order to relieve the central station of part of the tasks thereof in case of a high volume of data to be collected and processed, acquisition devices are used which have management processors (2, M.sub.1, M.sub.2) and with complementary computing processors (7, M.sub.3) programmed for carrying out processings of the data before the transmission thereof. Various combinations of seismic signals, data compression, and quality controls are performed in real time during the phase of setting of the seismic equipment (seismic receivers and acquisition device electronics (CA1 to CAn) in the devices A.sub.i in the field), etc, immediately accessible to operators in the field.

    摘要翻译: PCT No.PCT / FR93 / 00562 Sec。 371日期1994年2月8日 102(e)日期1994年2月8日PCT Filed 1993年6月11日PCT公布。 公开号WO93 / 25919 日期:1993年12月23日该系统包括用于收集由接收器(Rk)接收的信号的多个采集装置(Ai)和中央控制,记录和处理站。 该站管理设备(Ai)的性能,连续的信号采集周期,然后进行集中。 为了在收集和处理大量数据的情况下缓解中心站的部分任务,采用具有管理处理器(2,M1,M2)和互补计算处理器(7, M3)被编程用于在其发送之前执行数据的处理。 地震信号,数据压缩和质量控制的各种组合在地震设备(现场设备Ai中的地震接收机和采集设备电子设备(CA1至CAn)等)的设置阶段中实时执行 运营商可以在现场访问。

    Resynchronization of temporally acquired engine signals
    6.
    发明授权
    Resynchronization of temporally acquired engine signals 有权
    时间获取的发动机信号的再同步

    公开(公告)号:US07584043B2

    公开(公告)日:2009-09-01

    申请号:US11955480

    申请日:2007-12-13

    IPC分类号: F02D35/02 G06F19/00

    摘要: An method of synchronizing a signal coming from at least one sensor positioned on an engine with a periodic event of the engine such as the crankshaft rotation is disclosed having application for engine control. A crankshaft rotation signal indicative of a reference time (TR), with which the engine signal(s) is to be synchronized, is acquired. The effective time difference (D) between the reference time and the time that is the closest to each temporally acquired engine signal is measured. Then the coefficients of a fractional digital compensation filter (FSDF) for compensating for the fractional part (d) of the measured effective time difference are determined. Finally, this digital compensation filter is applied to each temporally sampled engine signal, allowing obtaining of a series of digitized samples resealed from reference time (TR) for each engine signal.

    摘要翻译: 公开了一种使位于发动机上的至少一个传感器的信号与发动机的周期性事件(诸如曲轴旋转)同步的方法,其具有用于发动机控制的应用。 获得指示要同步发动机信号的基准时间(TR)的曲轴旋转信号。 测量参考时间与最接近每个时间获取的发动机信号的时间之间的有效时间差(D)。 然后确定用于补偿测量的有效时间差的分数部分(d)的分数数字补偿滤波器(FSDF)的系数。 最后,该数字补偿滤波器应用于每个时间采样的发动机信号,允许从每个发动机信号的参考时间(TR)获得重新密封的一系列数字化样本。

    Method and system for transmitting seismic data to a remote collection
station
    8.
    发明授权
    Method and system for transmitting seismic data to a remote collection station 失效
    用于将地震数据发送到远程收集站的方法和系统

    公开(公告)号:US6070129A

    公开(公告)日:2000-05-30

    申请号:US121532

    申请日:1998-07-24

    IPC分类号: G01V1/00 G01V1/22

    CPC分类号: G01V1/22

    摘要: The invention pertains to transmission to a remote station, by means of transmission channels (generally radio transmission channels), of seismic data acquired by a data collection equipment comprising a plurality of acquisition units, each being suited to acquire, to store and preferably to compress the data to be transmitted. The invention comprises ordered storage, in a high-capacity memory (flash type memory for example) of each acquisition unit (Ai), of data obtained during successive emission-reception cycles (acquired and possibly preprocessed seismic data) so as to form a stream of stored data to be transmitted, and progressive transfer of the stored data stream from each acquisition unit to the remote station by means of the transmission channel, by reading each storage memory, with a time lag in relation to the time of their storage depending on the transmission rate of each transmission channel and on the transmission mode selected with preferably, if sending of the data of a cycle is delayed, sending of at least partial data, compressed or not, for quality control purposes. The data transmitted are reconstituted at the remote station. The method can be used for large-scale seismic data transmission.

    摘要翻译: 本发明涉及通过传输信道(通常是无线电传输信道)向包括多个采集单元的数据收集设备采集的地震数据的传输,每个采集单元适于采集,存储和优选地压缩 要发送的数据。 本发明包括在连续的发射 - 接收周期(获取的和可能的预处理的地震数据)期间获得的数据的每个获取单元(Ai)的高容量存储器(例如,闪存型存储器)中的有序存储器,以便形成流 的存储数据,以及借助于传输通道,将存储的数据流从每个采集单元逐行传输到远程站,通过读取每个存储存储器,根据它们的存储时间相对于其存储的时间滞后 为了质量控制目的,每个传输信道的传输速率和优选地,如果周期的数据的发送被延迟选择的传输模式的传输速率,至少部分数据的发送被压缩。 发送的数据在远程站重建。 该方法可用于大规模地震数据传输。

    Seismic transmission method and system utilizing concentration units
    9.
    发明授权
    Seismic transmission method and system utilizing concentration units 失效
    地震传播方法和利用浓度单位的系统

    公开(公告)号:US5706250A

    公开(公告)日:1998-01-06

    申请号:US741102

    申请日:1996-10-30

    IPC分类号: G01V1/22 H03G3/20

    CPC分类号: G01V1/22

    摘要: Seismic data acquisition devices (BA) distributed in an exploration zone are divided into n groups (GA1 to GAn) and, therein, into sub-groups having each a specific frequency for communicating with a concentration unit (Ck) which is connected to a central station (1) through Hertzian channels or cables or optical fibers. Acquisition devices in the various subgroups communicate simultaneously with the corresponding concentration unit (Ck) during predetermined emission windows. The concentration unit collects the signals received from the acquisition devices to transmit them in series to station (1). The acquisition devices are adapted for delaying their own emission window according to the rank which has been previously assigned thereto within the respective subgroups thereof.

    摘要翻译: 分布在勘探区域的地震数据采集装置(BA)分为n组(GA1〜GAn),其中分成具有与浓度单位(Ck)连通的特定频率的子组, 站(1)通过赫兹通道或电缆或光纤。 各个子组中的采集装置在预定的发射窗口期间与相应的浓度单元(Ck)同时通信。 浓度单元收集从采集装置接收的信号,以将它们串联发送到站(1)。 采集装置适于根据先前在其各个子组中分配的等级来延迟它们自己的发射窗口。

    Seismic transmission method and device for a very low error rate
    10.
    发明授权
    Seismic transmission method and device for a very low error rate 失效
    地震传输方法和设备误差率非常低

    公开(公告)号:US5351244A

    公开(公告)日:1994-09-27

    申请号:US162384

    申请日:1993-12-07

    CPC分类号: G11B20/1866 G01V1/22

    摘要: A method and an apparatus are applied to the seismic data received by receivers (Ri) distributed in the field and collected by acquisition boxes (Bi), in order to be transmitted to a central control and recording station (P), for example through hertzian channels. Digital words by adding to each N1-bit digitized signal sample, in each acquisition box, a n-bit coding suffix sufficient for detecting and correcting any transmission-related error. In order to eliminate the effect of long interferences, the method also comprises arranging the words in blocks, interleaving the words of each block at the time of the transmission, and forming digital symbols. A complementary sequence for reverse interlacing, deblocking and correcting possible errors brings the digital samples back to the original state thereof.

    摘要翻译: 一种方法和装置被应用于由现场分配并由采集箱(Bi)收集的接收机(Ri)接收的地震数据,以便被传送到中央控制和记录站(P),例如通过赫兹 频道 数字字通过在每个采​​集箱中添加到每个N1位数字化信号样本的足以检测和校正任何传输相关误差的n位编码后缀。 为了消除长干扰的影响,该方法还包括在块中布置这些字,在传输时交织每个块的字,并形成数字符号。 用于反向交织,去块和纠正可能错误的互补序列使得数字样品回到其原始状态。