Method and system for reliably upgrading visual monitoring and photographing system
A reliable and monitoring technology, applied in transmission systems, software deployment, electrical components, etc., can solve problems such as upgrade failures and unstable communication in the visual monitoring system, achieving a safe upgrade process, easy segmentation and analysis, and avoiding packet loss. Effect
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Embodiment 1
[0046] In one or more embodiments, a method for reliably upgrading a visual monitoring system is disclosed, which improves the data transmission method from three aspects: communication message structure, upgrade interaction process, and upgrade package file.
[0047] 1. This embodiment redefines the structure of the communication message, specifically:
[0048] masthead length type serial number content check Trailer
[0049] Among them, the header and the trailer: each occupy 2 bytes, which is convenient for message parsing and splitting the message; if the header and trailer of 1 byte are defined, the same data will easily appear; if the header and trailer of more than 2 bytes are defined, then It will reduce the packet segmentation efficiency.
[0050] Length: 2 bytes, used to identify the length of the message, which is convenient for the message parser to divide the message.
[0051] Type: occupies 2 bytes and identifies the purpose of this me...
Embodiment 2
[0080] In one or more embodiments, a reliable upgrade system for a visual surveillance system is disclosed, including a device to be upgraded and a backend; wherein, the device to be upgraded includes: a processor and a computer-readable storage medium, and the processing The controller is configured to perform the following process:
[0081] Receive the upgrade request initiated by the background;
[0082] Respond to received requests according to the current state of the device;
[0083] When the upgrade conditions are met, the upgrade data message sent by the background is received, and each message contains at least the upgrade file ID, the total number of packages and the current package number information;
[0084] Judging whether the data packet is completely received, if it is complete, the data is sent successfully; otherwise, send a supplementary packet request to the background until the data is completely received; the supplementary packet request includes at leas...
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