-
公开(公告)号:US20080123474A1
公开(公告)日:2008-05-29
申请号:US11772970
申请日:2007-07-03
申请人: Joon Young Jung , Jeun Woo Lee , Dong Wan Ryoo
发明人: Joon Young Jung , Jeun Woo Lee , Dong Wan Ryoo
IPC分类号: G04C11/04
摘要: A timer control device controlling at least one timer-controlled device having a timer built therein via a network, the time control device including: a timer setting unit setting an operating time and an operating method of the timer built in the at least one timer-controlled device; a timer absolute time provider providing a standard time of an area in which the timer control device is located; a control message generator generating a control message by combining the operating time and operating method of the timer of the timer setting unit with the standard time of the timer absolute time provider; and a control message transmitter transmitting the control message generated by the control message generator to the at least one timer-controlled device.
摘要翻译: 一种定时控制装置,其经由网络控制至少一个定时器控制装置,其中内置定时器控制装置,所述时间控制装置包括:定时器设置单元,设置内置于所述至少一个定时器控制装置内的定时器的操作时间和操作方法, 受控装置; 定时器绝对时间提供器,其提供定时器控制设备所在的区域的标准时间; 控制消息发生器,通过将定时器设置单元的定时器的操作时间和操作方法与定时器绝对时间提供者的标准时间相结合来产生控制消息; 以及控制消息发射机,其将由控制消息发生器生成的控制消息发送到至少一个定时器控制的设备。
-
公开(公告)号:US3710132A
公开(公告)日:1973-01-09
申请号:US3710132D
申请日:1971-09-03
申请人: SALUTATI G
发明人: SALUTATI G
CPC分类号: G04C13/02 , Y10T307/50
摘要: A time centralizing apparatus, such as used in railroad installations, includes a line section having a plurality of stations each having a repeated panel. A pilot generator at one end of the line section transmits synchronizing electric pulses to the station nearest thereto, with the repeater panel of each station being adapted to synchronize clocks or other local servo devices and to transmit, to the next succeeding station, the sequence of pulses received thereby. A second or auxiliary generator at the opposite end of the line section is operable, responsive to non-arrival of pulses from the pilot generator, to transmit synchronizing electric pulses in the opposite direction along the line station to synchronize the cutoff stations. A respective reversing relay at each repeater panel normally conditions the associated panel to receipt of pulses from the pilot generator, and respective means at each repeater panel is operable, responsive to non-arrival of pulses from the pilot generator, to operate the reversing relay to condition the associated repeater panel to receipt of pulses from the second or auxiliary generator. A first time-responsive micro-relay at each station is maintained energized by a condenser which is charged by pulses received from the pilot generator. A second timeresponsive micro-relay is provided and maintained energized by a condenser which is charged by pulses received from the second or auxiliary generator, and thus is normally deenergized. Upon nonarrival of pulses from the pilot generator, the condensor of the first relay looses its charge and the relay is deenergized to close an energizing circuit for the operating coil of the reversing relay, this energizing circuit being closed through a contact of the second relay. The reversing relay is thus operated. Upon restoration of pulses from the pilot generator, the auxiliary generator causes to transmit pulses. This results in discharge of the condensor associated with the second microrelay, so that this second micro-relay is deenergized and opens the energizing circuit for the reversing relay. The latter thus is restored to a ''''normal'''' position in which it cuts off receipt of pulses from the second or auxiliary generator, and the first relay is energized, by charging of its condenser by pulses from the pilot generator, to open its contact included in the energizing circuit for the operating winding or coil of the reversing relay. A feature of the invention is that each station has its own local source of potential which is preferably supplied from a battery charged through a rectifier from the usual lighting circuit.
-
公开(公告)号:US1768431A
公开(公告)日:1930-06-24
申请号:US24917528
申请日:1928-01-24
申请人: WARREN TELECHRON CO
发明人: WARREN HENRY E
IPC分类号: G04C11/04
CPC分类号: G04C11/04
-
公开(公告)号:US08891338B2
公开(公告)日:2014-11-18
申请号:US12362330
申请日:2009-01-29
申请人: Matthew Johnson , Mark Cornwall
发明人: Matthew Johnson , Mark Cornwall
CPC分类号: G04C11/04 , G01D4/004 , Y02B90/242 , Y04S20/322
摘要: Packet formats and associated metering infrastructure for filtering meter reading data that is being transmitted by utility meters are disclosed. In one embodiment, a method is provided of measuring the accuracy of an endpoint clock, such as a utility meter clock, from a remote device configured to capture transmissions that originate from the utility meter. Generally, the method includes synchronizing the time maintained by the utility meter with the time maintained by the remote device. The method receives and decodes a packet that includes a time stamp provided by the utility meter. Then, the method calculates the extent of the inaccuracy of the time stamp in the received packet and determines whether the extent of the inaccuracy satisfies a predetermined threshold.
摘要翻译: 公开了用于过滤由电表进行传输的抄表数据的数据包格式和相关的计量基础设施。 在一个实施例中,提供了一种从被配置为捕获源自公用事业计量表的传输的远程设备测量端点时钟(诸如公用事业计时钟)的精度的方法。 通常,该方法包括将由公用事业计算机维护的时间与由远程设备维护的时间同步。 该方法接收并解码包含由公用事业计量表提供的时间戳的分组。 然后,该方法计算接收到的分组中的时间戳的不准确程度,并确定不准确度的程度是否满足预定阈值。
-
公开(公告)号:US20100103781A1
公开(公告)日:2010-04-29
申请号:US12258344
申请日:2008-10-24
申请人: Vikram Rai , Alok Srivastava , Angelo Pruscino , Sameer Joshi
发明人: Vikram Rai , Alok Srivastava , Angelo Pruscino , Sameer Joshi
IPC分类号: G04C11/04
CPC分类号: G06F1/12 , H04J3/0667
摘要: Techniques are described herein for synchronizing cluster time. According to one technique, a master node is appointed in a cluster. Other “slave” nodes periodically synchronize their clocks with the master node. To synchronize its clock with the master node, a slave node sends a timestamped message to the master node, which also timestamps the message and sends the message back to the slave node, which then timestamps the message again. Based on the timestamps, the slave node is able to determine the difference between the master node's clock's time and slave node's clock's time, compensating for the message travel time between master node and slave node. Depending on various circumstances, and based on the determined difference, the slave node adjusts its clock so that the time indicated by the slave node's clock at least begins to approach more closely the time indicated by the master node's clock.
摘要翻译: 这里描述了用于同步集群时间的技术。 根据一种技术,在簇中指定主节点。 其他“从”节点周期性地将其时钟与主节点同步。 为了将其时钟与主节点同步,从节点向主节点发送时间戳消息,主节点还对消息进行时间戳,并将消息发送回从节点,从节点再次对消息进行时间戳。 基于时间戳,从节点能够确定主节点的时钟和从节点的时钟时间之间的差异,从而补偿主节点和从节点之间的消息传播时间。 根据各种情况,根据确定的差异,从节点调整其时钟,使从节点的时钟指示的时间至少开始接近主节点时钟指示的时间。
-
公开(公告)号:US3732685A
公开(公告)日:1973-05-15
申请号:US3732685D
申请日:1972-04-03
申请人: TRI TECH
发明人: HAYDON A
摘要: A clock mechanism driven by a pulsed stepper motor and having planetary reduction gearing which provides a continuous but resilient connection between the motor and the minute hand of the clock at all times. The motor includes a permanent magnet rotor in direct driving relationship with the minute hand, and the rotor poles serve as a magnetic detent to hold the minute hand in discrete angular positions. The mechanism may be employed either in individual clocks or in the secondary clocks of a mastersecondary clock system. In these latter embodiments the secondary clocks additionally include a pair of switches respectively controlled by the minute hand gearing and the hour hand gearing. The switches greatly facilitate the automatic resetting of the clocks in response to appropriate resetting signals from the master unit.
摘要翻译: 由脉冲步进电机驱动并具有行星减速齿轮的时钟机构,其始终在电机和时钟的分针之间提供连续但有弹性的连接。 电动机包括与分针直接驱动关系的永磁转子,并且转子极用作磁力制动器以将分针保持在离散的角位置。 该机制可以在主时钟系统的单个时钟或次要时钟中使用。 在这些后面的实施例中,辅助时钟还包括分别由分针传动装置和时针传动装置控制的一对开关。 响应于来自主单元的适当复位信号,这些开关极大地方便了时钟的自动复位。
-
公开(公告)号:US2289636A
公开(公告)日:1942-07-14
申请号:US28024539
申请日:1939-06-21
申请人: GEN TIME INSTR CORP
发明人: ENGEL GEORGE C
IPC分类号: G04C11/04
CPC分类号: G04C11/04
-
8.
公开(公告)号:US20110164472A1
公开(公告)日:2011-07-07
申请号:US12652274
申请日:2010-01-05
申请人: Scott D. Arena
发明人: Scott D. Arena
CPC分类号: G04G9/0076 , G04R20/18
摘要: A system and method for determining local time at an electronic device is disclosed. The system may include an input configured to receive home information for an electronic device. The system may also include a calibration module configured to calibrate the electronic device to a home time zone corresponding to the home information. Calibrating the electronic device may include determining a threshold time value for messages to be transmitted to and received from a home location associated with the home information and generating a time zone database based on the home time zone, and labeling each time zone in the time zone database with a label based on an offset in time from the home time zone. A time value corresponding to time of message transmission to and from the home location may also be determined. The system may also include a processor module configured to determine that the electronic device is within the home time zone in the event the time value is equal to or lesser than the threshold time value, determine that the electronic device is in a new time zone in the event the time value is greater than the threshold value. The new time zone may be calculated based on the time value and the time zone database.
摘要翻译: 公开了一种用于确定电子设备的本地时间的系统和方法。 系统可以包括被配置为接收电子设备的家庭信息的输入。 系统还可以包括校准模块,该校准模块被配置为将电子设备校准到对应于家庭信息的归属时区。 校准电子设备可以包括确定要发送到与家庭信息相关联的归属位置并从其接收的消息的阈值时间值,并且基于归属时区生成时区数据库,并且对时区中的每个时区进行标记 数据库具有基于从归属时区的时间偏移量的标签。 还可以确定对应于到达和离开家庭位置的消息传输的时间的时间值。 系统还可以包括处理器模块,该处理器模块被配置为在时间值等于或小于阈值时间值的情况下确定电子设备在归属时区内,确定电子设备处于新时区 时间值大于阈值的事件。 可以根据时间值和时区数据库计算新的时区。
-
公开(公告)号:US2796729A
公开(公告)日:1957-06-25
申请号:US40028753
申请日:1953-12-24
申请人: GEN TIME CORP
发明人: BLACK WILLIAM A
IPC分类号: G04C11/04
CPC分类号: G04C11/043 , Y10T74/18096
-
公开(公告)号:US2359973A
公开(公告)日:1944-10-10
申请号:US23953838
申请日:1938-11-08
申请人: DICKE OSCAR H
发明人: DICKE OSCAR H
IPC分类号: G04C11/04
CPC分类号: G04C11/04
-
-
-
-
-
-
-
-
-