Multi-channel switching control method and device in heterogeneous industrial network environment
An industrial network and control device technology, applied in wireless communication, electrical components, transmission systems, etc., can solve problems such as inability to achieve seamless switching
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Embodiment 1
[0049] This embodiment is dual GPRS channel switching.
[0050] The structure of the dual GRPS channel switching device is as follows: image 3 As shown, the interfaces on the equipment side of the device are RS485 and Ethernet interfaces, the interfaces on the network side are two GPRS interfaces of China Mobile and China Unicom, and the connection between the CPU and the two GPRS modules is a TTL serial interface. The device does not include a measurement circuit, and the measurement of network parameters is not completed by means of hardware circuits.
[0051] The implementation process of dual GPRS channel switching control is as follows:
[0052] (1) The measurement of channel switching parameters in this embodiment is performed by the built-in software module in the device
[0053] Done, realize the measurement of the following channel parameters.
[0054] (1.1) The measurement module interacts with the GPRS module through the TTL interface, and uses the standard AT c...
Embodiment 2
[0067] This embodiment is GPRS+230LTE or 1800LTE channel switching:
[0068] The structure of GRPS and 230 / 1800LTE dual-channel switching device is as follows: Figure 4 As shown, the interface on the equipment side of the device is an RS485 and Ethernet interface, the interface on the network side is a GPRS interface of China Mobile or China Unicom, and the connection between the CPU and the GPRS module is a TTL serial interface; the other interface is 230M or 1800M LTE industry private network communication module, the connection between the CPU and the private network module is a TTL serial interface or mini PCI-E interface. The device does not include a measurement circuit, and the measurement of network parameters is not completed by means of hardware circuits.
[0069] The implementation process of GPRS and 230 / 1800LTE private network dual-channel switching control is as follows:
[0070] (1) The measurement of the channel switching parameters in this embodiment is com...
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