Comprehensive Logging System's Essence Design

Use of dynamite source in geophysical exploration, borehole drilling a certain depth when stimulated wells. Depths and doses of detecting explosives in various formation parameters of one of the important basic data, can accurately record the depth of explosives and explosives decentralization of the drug will have a direct impact on the various test data collection and analysis, existing logging method widely used method of manual measurement. In practice, the pursuit of individual progress of construction workers, regardless of construction quality, violation of operation rules, the construction of fraud, false information after the newspaper when something happens, there is no way to ensure the accuracy of depth measurement object exploration well, also can not approach accurate records of explosives dose. Well depth of the gun, position control is not good, explosives placed in the depth and dose not meet the requirements, not only affect the construction quality of the exploration results to lack of protection, which will create safety hazards cause heavy casualties, unable to field high-quality construction to provide reliable protection.A comprehensive logging instrument is designed in the dissertation to overcome the deficiencies of existing technologies, providing a method to automatically measure and record the well depth and location of the external environment; automatically detect the information such as the depth explosives have been placed in, the dose of explosives, number of detonators, detonator number, explosives number, etc; automatically transmit the field data to the distant monitor with GPRS; and automatically save the field data to the flash memory. This system has the advantages such as the flexibility of parameter measurement, the capability of automatically correcting, and the operator can not artificially change the measured parameters. This dissertation focuses on the design of the hardware and driver software of the comprehensive logging system. The well depth measurement is realized by using ICL7135; the reading of explosives number is realized by using M106BXN non-contact IC card RF reader module; the field photographing is realized by using VC313 camera module; the field center processor is composed by three 51 chip microprocessor; the flash memory is realized by using CH375; the field printing is realized by using WD-AN micro printer; the field LCD display is realized by using JH-ABV7 LCD controller and 5-inch LCD flat panel; and the driver software is coded by Keil C development environment.The integrated system of surveying well has now completed the prototype design, and the prototype has been deployed for the field experiment, the field experiment results show that the performance of the integrated system is good. The data collection and storage of the integrated system is reliable and stability, such as collect the number of explosives, the depth of well, the field image and the on-site latitude and logitude, storage data based on the USB, the field data print and data transmission based on the GPRS, the integrated system meet the requirements of the geophysical exploration.