METHOD OF SWITCHING UNITS OF SENSORS OF TELEMETRIC INFORMATION TRANSMISSION SYSTEM Russian patent published in 2019 - IPC E21B47/12 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and is intended for switching actuators and mechanisms in operation of wells for extraction of fluid. Technical result is achieved in a switching method DB telemetric information transmission system, at which DC voltage is transmitted through a transmission path in PPE, where in DB forming necessary supply and reference voltages for operation of its devices, interrogating sensors whose current values are converted to a serial digital code, generating a data packet obtained from sensors for transmission to a ground device, characterized in that parallel DB additionally connecting from 1 to N DB, duplicating functions DB, for each of DB calculating a predetermined delay on the on-time (further, delay), including DB with minimum delay, while operating DB simultaneously supplying power reset signals to the rest DB until termination, caused by reception of signal from ground device for switching DB, at that, operating at current moment in time DB switching by selecting DB with minimum delay, switching DB is carried out in a sequence determined by the delay value, based on the fact that each previous operating DB maximum delay is set. This allows backup and duplication of functions of the sensor unit (higher reliability) in case of failure DB or incorrectness of transmitted data received from sensors, as well as if necessary to assess the degree of reliability of transmitted data from sensors.

EFFECT: purpose of invention is to improve reliability of equipment (due to duplication of functions of transmitting data obtained from sensors), high reliability of communication (id est continuous transmission of data received from sensors).

1 cl, 1 dwg