RU16521U1 - DEVICE FOR AGREEMENT OF OBJECTS - Google Patents

Abstract

1. An object matching device comprising a power supply, filters, an amplifier, an analog-to-digital converter, a microcontroller, and an isolation and level matching device, characterized in that a limiter amplifier is connected to the filter input. 2. The object matching device according to claim 1, characterized in that the limiter amplifier, the filter, and the normalizing amplifier are mounted on the analog processing board, and the analog-to-digital converter, microcontroller, and the isolation and level matching device are mounted on the digital processing board.

Description

DEVICE FOR AGREEMENT OF OBJECTS

The utility model relates to electronics, specifically to downstream devices used to receive information about downhole parameters from the downhole telemetry system but to the electromagnetic communication channel and its nervous processing, before being sent to the computer for final processing.

A device matching devices (USO), which coordinates the downhole telemetry system and a computer according to the application of the Russian Federation for invention No. 94011511/03, IPC E 21 V 45/00, which contains a power supply, analog-to-digital converter, signal processing unit, electronic intermediate normalizing transducers, each of which is electrically connected to a corresponding primary transducer. Each channel of information transmission has primary transducers: downhole loads, flushing fluid pressure, torque measurement, etc.

A device for matching objects (USO) is described in the brochure of the enterprise "Automation of technology monitoring, p. 5, which is made distributed. At the same time, the information exchange controllers between the sensors and the computer are located near the sensors. Such a constructive-circuit solution allows to increase the noise immunity of the system, but makes it maintainable.

There is also known a device for matching objects but to the report of Chuprov V.P. Information on NTWD / LWD systems ZTS-54 and ZTS-155, approved. 07/01/1996 (prototype) This device contains a power supply, as well as a series-connected filter, amplifier, amp-digital-to-digital converter, single-chip microcomputer, RS232 interface, the output of which is connected to a computer.

The disadvantage of this CHCTeivfbi is poor noise immunity from random signals that are not related to the operation of the downhole telemetry system.

The task of creating a utility model is to increase the noise immunity of the device.

This problem is solved due to the fact that an amplifier - limiter is connected to the filter at the input of the filter to an object matching device containing a thread unit, filters, an amplifier, and an analog-to-digital converter. In addition, after an analog-to-digital converter, a microcontroller and an isolation and level matching device are connected.

The proposed technical solution meets the criteria of a utility model: it has novelty and industrial applicability. The novelty of novelty has been confirmed by patent research. The industrial applicability is justified by the fact that the proposed device can be assembled from standard electronic elements.

The essence of the utility model is illustrated in the drawing of FIG. 1, which shows a schematic diagram.

The device matching objects consists of a power supply 1 and last

connected amplifier-limiter 2, filter 3, normalizing amplifier 4, analog-to-digital converter 5, microcontroller 6, and isolation and level matching device 7. Installation of all electronic components of the device is completely attenuated on nlaty: analog processing board 8 and digital processing board 9.

The device operates as follows. At the input of the amplifier-limiter 2, a signal is received from the downhole telemetry system received by the antenna (in Fig. 1, the downhole telemetry system is not shown). Amplifier-limiter 2 provides a preliminary amplification of signals received from the arttenn and limiting powerful signals and interference. Next, the signal passes through filter 3, where noise and

well

false signals. The received signal is amplified in the circulating amplifier 4 to the level necessary for the normal operation of the analog-to-digital converter 5

The digitized signal from the output of the analog-to-digital converter is transmitted to the microcontroller 6, where it is converted into the SR232 format for transmitting data. Next, a digital signal in the SR-232 format through the isolation and level matching device 7 and through the COM port enters the computer, where the basic processing of telemetry information is performed using the ZTS program (ZTS-172M, ZTS3-33 or others).

Application of the utility model allowed to INCREASE the noise immunity of the device Author: //,09.2000g. CX at vo J- Grigashkin G.A. G

Claims (2)

1. An object matching device comprising a power supply, filters, an amplifier, an analog-to-digital converter, a microcontroller and an isolation and level matching device, characterized in that an amplifier-limiter is connected at the input to the filter. 2. The object matching device according to claim 1, characterized in that the limiter amplifier, the filter and the normalizing amplifier are mounted on the analog processing board, and the analog-to-digital converter, microcontroller and isolation and level matching device are mounted on the digital processing board.