Clock synchronization adjustment method and device
A technology of clock synchronization and adjustment method, which is applied in the direction of mechanical equipment, etc., can solve problems such as crystal oscillator error and clock offset, and achieve the effect of solving clock offset
Inactive Publication Date: 2020-05-05
GREE ELECTRIC APPLIANCES INC
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[0005] The embodiment of the present invention provides a method and device for adjusting clock synchronization, so as to at least solve the problem in the related art that there is a crystal oscillator error in each bus communication node, resulting in a clock offset between each node
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[0024] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.
[0026] The method embodiment provided in Embodiment 1 of the present application may be executed in a smart terminal, a computer terminal or a similar computing device. Taking running on a smart terminal as an example, figure 1 It is a block diagram of the hardware structure of the intelligent terminal of the clock synchronization adjustment method of the embodiment of the present invention. Such as figure 1 As shown, the smart terminal 10 may inclu...
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The invention provides a clock synchronization adjustment method and device. The clock synchronization adjustment method comprises the steps that testing information sent from a main node to a sub node in a bus, and testing feedback information sent, in response to the testing information, from the sub node to the main node are obtained, wherein a first time stamp is carried in the testing information, and a second time stamp is carried in the testing feedback information; the clock offset amount between the main node and the sub node is determined according to the first time stamp and the second time stamp; and the main node and the sub node are subjected to clock synchronization according to the clock offset amount. Through the clock synchronization adjustment method and device, the problem of clock offset caused by the crystal oscillator error in all nodes in the bus in a relevant technology is solved, and the effect of clock synchronization between all the nodes is achieved.
Description
technical field [0001] The present invention relates to the technical field of bus communication, in particular to a clock synchronization adjustment method and device. Background technique [0002] With the improvement of people's living standards, the demand for intelligent air conditioners is increasing year by year. Air-conditioning equipment is already an important node in the home Internet of Things network. The use of Internet of Things technology to achieve more functions such as positioning, ranging, multi-function sensors, and computer vision has appeared in a large number of new air-conditioning products. [0003] These new functions based on the Internet of Things largely require the support of precise clock synchronization technology. For example, a sensing system based on multi-eye vision must require multiple video image information to be highly consistent in time to reconstruct the visual effect. For example, intelligent systems based on distance measuremen...
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IPC IPC(8): F24F11/58F24F11/61F24F11/64
CPCF24F11/58F24F11/61F24F11/64
Inventor 黄佳星金国华王文灿屈成康杨都黄强马翠明吕泽川
Owner GREE ELECTRIC APPLIANCES INC