公开(公告)号：US20170338938A1

公开(公告)日：2017-11-23

申请号：US15523944

申请日：2015-10-23

Applicant: THE WUHAN DIGITAL PET CO., LTD

Inventor： Lei FANG ,  Bo ZHANG

IPC: H04L7/00

CPC classification number: H04L7/0037 ,  G06F1/04 ,  G06F1/12 ,  H04B3/46 ,  H04J3/0638 ,  H04J3/0682 ,  H04L7/0008 ,  H04L7/10

Abstract: A method and a device for providing a global clock in a system, the terminals in the system are channel connected to each other via paths, each terminal is communicatively connected to a clock source ultimately via a signal recording unit, respectively, the clock source sends a calibration signal to the network, the signal recording unit records the current transmitting time T (0) of the calibration signal, each terminal will receive the calibration signal sequentially due to different distances from the clock source and will return the signal, the backward signals are returned to the signal recording unit along the network sequentially, and the signal recording unit records the time T (n) of each backward signal sequentially, in this way, the signal recording unit can then measure the delay between each terminal and the clock source signal, which can be used as a correction parameter to ensure that all terminals are in exactly the same time reference, in addition, in this way, there is no need to control the length of the clock cables from each terminal to the clock source, and no special consideration is required for clock routing, and difficulties in system assembly, calibration, maintenance and expansion brought by large amounts of cable are avoided.

公开(公告)号：US20180032094A1

公开(公告)日：2018-02-01

申请号：US15550378

申请日：2016-01-23

Applicant: THE WUHAN DIGITAL PET CO., LTD

Inventor： Bo ZHANG

IPC: G05D27/02 ,  G05B19/05 ,  G05D23/19 ,  G05D22/02 ,  G01T7/00 ,  G01T1/29

CPC classification number: G05D27/02 ,  G01T1/16 ,  G01T1/2985 ,  G01T7/00 ,  G01T7/005 ,  G05B19/054 ,  G05B2219/1136 ,  G05B2219/15057 ,  G05D22/02 ,  G05D23/1917

Abstract: An intelligent control system for a detector comprises an external control module (110) and at least one group of data transmission and control modules (120), wherein the external control module (110) is used for controlling packet issuing and feedback message processing; a fifth interface (125) connected to the external control module (110) and used for packet transmission; a processing unit (128); at least one group of first type of interfaces (121) respectively connected to a detector (150) and used for transmitting a control packet of the detector (150); at least one group of second type of interfaces (122) respectively connected to the detector (150) and used for transmitting original data of the detector (150); a data pre-processing unit (129) for acquiring and forwarding the original data or pre-processing data of the detector (150); and a sixth interface (126) connected to the external control module (110) and used for transmitting the original data/pre-processing data of the detector (150). The intelligent control system for a detector can form an intellectualized control platform for performing dynamic configuration, intelligent monitoring, power supply management, data processing, foreign interaction, firmware updating on the detector (150).

公开(公告)号：US20170315582A1

公开(公告)日：2017-11-02

申请号：US15523942

申请日：2015-10-29

Applicant: THE WUHAN DIGITAL PET CO., LTD

Inventor： Bo ZHANG ,  Lei FANG

IPC: G06F1/12

CPC classification number: G06F1/12 ,  G06F1/04 ,  G06F1/10 ,  H04J3/0635 ,  H04J3/0638 ,  H04J3/0658 ,  H04J3/0661 ,  H04J3/0667 ,  H04J3/0682 ,  H04J3/0685 ,  H04L7/0008 ,  H04L7/0037 ,  H04L7/10 ,  H04L43/0852

Abstract: A method and a structure for determining a global clock among systems are disclosed. When a standardized time reference is required among systems, a reference clock source may transmit a calibration signal, and a transmitting time Td (0) may be recorded. Each system may respectively record an arrival time Ta (n), transmit a return signal to a signal recording unit of the reference clock source, and record a transmitting time Tb (n), after receiving the calibration signal. Similarly, because of different distances, the signal recording unit may record arrival times Td (n) of the return signals subsequently, and determine time delays Delay (n) between systems and the reference clock source respectively. When all the systems are required to have a completely standardized time reference, a corresponding Delay (n) may be acquired and transmitted to each system. Each system may determine zero deviations Tc (n) of various local clocks from the reference clock source, and take Tc (n) as a correction parameter to correct its own system clock, so that the local clocks of all the systems have a completely standardized time reference.