Instrument communication bus converter and conversion device based on BLE Bluetooth

Abstract

The invention belongs to the technical field of communication, and particularly relates to an instrument communication bus converter based on BLE Bluetooth and a conversion device. The converter is powered by a lithium battery, can be conveniently and quickly inserted into an instrument communication interface, and realizes wireless interconnection of instrument equipment anytime and anywhere; the converter is used as slave equipment, can be automatically paired with the control terminal, completes registration, waits for receiving instrument operation and read-write instructions sent by the control terminal in a low-power-consumption mode, converts the instructions into corresponding interface instructions, and forwards the instructions to an instrument communication interface, so that remote control of an instrument is realized.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an instrument communication bus converter and a conversion device based on BLE Bluetooth. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The current instrument control communication bus mainly includes GPIB, VME-based VXI, PCI-based PXI, LAN-based LXI, and RS232 and other wired methods and WiFi, GPRS, ZigBee, Bluetooth and other wireless methods. Among the wired methods, VXI and PXI Due to the limitation of its application scenarios, it rarely appears on a single instrument, while LXI appears more in high-end instruments. Because GPIB and RS232 have been widely accepted and used by various instrument manufacturers for a long time, they are currently the most widely used in instrument communication. The most used connection m...

AI Technical Summary

Problems solved by technology

However, for the wired communication method, because each device needs a physical cable connection, the flexibility and mobility are poor, and it is difficult to realize handheld smart device control

As for the wireless communication method, considering the interference of wireless communication to many test instruments, the wireless function is generally not installed inside the instrument as the preferred function, but is more realized by external modules developed by users according to their own needs. There are many ways, but the disadvantages are high cost, high power consumption, and low security. Unplugged WiFi modules are difficult to use for a long time, requiring frequent charging or battery replacement; while GPRS is mainly used in some applications that require wide area network communication. In the field of data acquisition or real-time monitoring, the disadvantages are high price, low security, and dependence on base stations; ZigBee, as the mainstream technology of the Internet of Things, has the disadvantages of low data transmission rate, unsupported by handheld smart devices, and high development difficulty resulting in high time costs ;Bluetooth is only used in a small amount in the test field due to reasons such as high power consumption and few network nodes.

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