Data transmission method and device
A data transmission method and data technology, applied in the field of communication, can solve problems such as aggravating MCU load and MCU congestion, and achieve the effect of reducing load and preventing congestion.
Active Publication Date: 2018-09-28
ZTE CORP
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Problems solved by technology
[0004] Since the preset time interval is fixed, when the MCU is in a busy state, repeatedly sending operation instructions to the MCU at a fixed preset time interval will often further aggravate the load of the MCU, thereby causing congestion of the MCU.
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[0041] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. 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 arbitrarily with each other.
[0042] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
[0043] An embodiment of the present invention provides a data transmission method, such as figure 1 As shown, the method includes:
[0044] Step 101, the IoV unit sequentially sends a plurality of first operation instructions to the MCU.
[0045] It sho...
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The invention discloses a data transmission method and device. The method comprises steps that multiple first operation instructions are sequentially sent by an Internet of vehicles unit to a micro control unit (MCU); confirmation messages sent by the MCU are received; when any confirmation message is received, a target retransmission interval is determined according to the reception duration of the confirmation message and the present retransmission interval; the retransmission time of a first operation instruction returning no confirmation message is determined according to the target retransmission interval; the first operation instruction returning no confirmation message is re-transmitted according to the acquired retransmission time. The method is advantaged in that when any confirmation message is received, the target retransmission interval is determined according to the reception duration of the confirmation message and the present retransmission interval, the retransmission time of the first operation instruction returning no confirmation message is further determined, the purpose of adjusting the retransmission frequency of the first operation instruction according to the feedback condition of the first operation instruction is realized, the load of the MCU is reduced, and MCU congestion can be prevented to the maximum degree.
Description
technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a data transmission method and device. Background technique [0002] The Internet of Vehicles unit is a device that applies Internet of Vehicles technology to collect, store and send all the working conditions and static and dynamic information of the vehicle. The Internet of Vehicles unit includes a Micro Controller Unit (MCU) and an Internet of Vehicles unit (ie, The part of the networking unit except the MCU), the vehicle networking unit needs to be used in conjunction with the MCU, specifically, the MCU reports the vehicle data to the vehicle networking unit, and the vehicle network unit uploads the vehicle data to the server through the wireless network, and then the server pushes the message On the other hand, the user sends the remote control command to the server through the mobile phone application, and then the server sends the remote...
Claims
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IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1607H04L1/18H04L1/1829H04L1/1854G05B19/0423
Inventor 刘波
Owner ZTE CORP