Underground multi-channel parallel cable-controlled intelligent injection-production monitoring system and monitoring method

The invention provides an underground multi-channel parallel cable control intelligent injection and production monitoring system and method.The monitoring system comprises an underground intelligent injection and production working barrel, a ground controller, a monitoring upper computer and a matched underground multi-core steel pipe cable, and a plurality of injection and production monitoring modules are arranged in the ground controller; each underground injection-production layer position corresponds to one underground intelligent injection-production working barrel, each underground intelligent injection-production working barrel corresponds to one injection-production monitoring module, and each underground intelligent injection-production working barrel occupies one cable core of the underground multi-core steel pipe cable and is connected with the injection-production monitoring module of the ground controller through the cable core; the monitoring method comprises the following steps: a preparation