ARM-based inter-pore elastic wave collection device and control method thereof

Abstract

The invention discloses an ARM-based inter-pore elastic wave collection device and a control method. The device comprises a signal receiving probe, a signal conditioning module and processors, whereinthe processors are a main control unit processor and a collection unit processor respectively, the two processors are connected through serial ports, the main control unit processor is connected witha man-machine interaction module, the collection unit processor is connected with the signal conditioning module, and the signal conditioning module is connected with the signal receiving probe. By adopting the main processor to take charge of a man-machine interaction control task and the coprocessor to separately take charge of a data collection task, the two processors complete a hardware architecture for parameter setting and data transmission and communication through the two serial ports; and the characteristics that a data collection device has a high requirement on data collection instantaneity and a low requirement on subsequent data processing instantaneity are fully utilized, so that the requirement on the properties of a single dedicated processor is lowered, and the instantaneity of data collection can be guaranteed.

Description

technical field [0001] The invention belongs to the field of engineering exploration and detection, and more specifically relates to an inter-hole elastic wave acquisition device and an acquisition function module realization method used in geological tomography technology. Background technique [0002] The schematic diagram of tomography construction in engineering exploration is as follows: figure 1 , its working process is: the blasting of the seismic source emits elastic waves through the transmitting probe 11, and the elastic waves start to propagate from the transmitting hole through the formation medium to the receiving hole, and simultaneously generate a synchronization signal, which will be transmitted to the elastic wave through the synchronization signal cable 13 The acquisition device 14, once the elastic wave acquisition device 14 receives the synchronous signal, immediately collects the signal of the receiving probe 12 to find underground lithological anomalies...

AI Technical Summary

Problems solved by technology

The hardware architecture of this single processor can complete the entire elastic wave data acquisition work by the internal program of the processor, but usually the price of a single industrial computer is relatively expensive, large in size and heavy in weight.

In addition, the hardware implementation of the human-computer interaction control function and the synchronous signal triggering real-time data acquisition function by a single processor is difficult to guarantee the real-time performance of elastic wave acquisition for processors with weak processing capabilities. The processor will not only increase the cost of the product, but at the same time, there will be excess performance in the face of tasks with low real-time requirements such as the post-processing of elastic wave data.

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