CN218866117U - Two-dimensional and three-dimensional full-function electric field time sequence acquisition and processing system - Google Patents

Abstract

The utility model discloses a two dimension and three-dimensional full function electric field time series gather and processing system, including the core mainboard and with the group battery module of core mainboard connection, be equipped with the controller on the core mainboard and respectively rather than the coding module, signal conversion module and the flash memory module of being connected. The method is compatible with a two-dimensional and three-dimensional power-exciting working mode, the two-dimensional acquisition can realize real-time data acquisition control and acquisition result display, the three-dimensional acquisition can monitor acquisition states and data in real time, and blind acquisition can be realized to improve the working efficiency; the two-dimensional data acquisition and the three-dimensional data acquisition are both time series acquisition, and data reprocessing and data filter selection are supported, so that the signal to noise ratio is further improved; the time window can be changed after the two-dimensional data and the three-dimensional data are collected, the polarizability is recalculated, and the feasibility of data reprocessing is improved; and support 32bit fully differential simulation collection, support traditional delay synchronization, also support GPS time synchronization, still support wireless and wired control mode, extensive applicability.

Description

Two-dimensional and three-dimensional full-function electric field time sequence acquisition and processing system

Technical Field

The utility model relates to a geophysical exploration technical field, concretely relates to two dimension and three-dimensional full function electric field time series collection and processing system.

Background

The traditional induced polarization instrument only supports a two-dimensional or three-dimensional working mode, the utilization rate of the instrument is low, and the low sampling rate is not beneficial to improving the signal-to-noise ratio. The traditional two-dimensional induced polarization instrument is used for collecting non-time sequence data, the signal-to-noise ratio of data can be improved only by increasing the number of iterations infinitely, and the data collection time is long; the backward delay synchronization mode is adopted, so that the synchronization precision is poor; the time window for calculating the polarizability cannot be changed after the acquisition is completed. The traditional three-dimensional induced polarization instrument needs to be provided with a current sampler independently, and the purchase cost is high. In addition, the mainstream power excitation instrument in the prior art is mainly monopolized by foreign manufacturers, but the product technology is slow to update, the supported working mode is single, the instrument is large in size and high in power consumption, and the requirements of the mainstream compatible two-dimensional and three-dimensional data acquisition and the long-term monitoring project cannot be met.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a two-dimentional and three-dimensional full function electric field time series collection and processing system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a two-dimensional and three-dimensional full-function electric field time sequence acquisition and processing system comprises a core mainboard, wherein a controller, and an encoding module and a signal conversion module which are respectively connected with the controller are arranged on the core mainboard.

Preferably, the battery pack further comprises a battery module connected with the core main board.

Preferably, the core motherboard is further provided with an external interface connected to the controller, including an ethernet interface, a display interface, a storage interface, a wireless interface, an external power line/charger interface, an external controller interface, and a CH interface set.

Preferably, the core main board is further provided with a WIFI module, a GPS module, a crystal oscillator module and a power module.

Preferably, the controller comprises a main control unit, and a human-computer interaction unit, a working mode control unit, an electric signal output control unit and a data acquisition state feedback unit which are respectively connected with the main control unit.

Preferably, the encoding module includes a data noise identifying unit, a data noise filtering unit, a data preliminary processing unit, and a data format converting unit, which are connected to each other.

Preferably, the front end of the coding module is connected with the signal conversion module, and the rear end of the coding module is connected with the flash memory module.

Preferably, the signal conversion module is connected to the signal receiver by using a signal converter.

Due to the structure, the beneficial effects of the utility model reside in that:

1. the utility model discloses compatible two-dimentional real-time data acquisition, real-time data result control to and three-dimensional continuous time series collection, compatible two-dimentional and three-dimensional work pattern that swashs the electricity promptly, two-dimentional collection can realize real-time data acquisition control and acquisition result and show; the three-dimensional acquisition can monitor the acquisition state and data in real time, and also can realize blind acquisition and improve the working efficiency;

2. the utility model discloses two-dimensional and three-dimensional data acquisition are time series collection, support data reprocessing and data filter to select, are favorable to further improving the SNR;

3. the utility model can change the time window after the two-dimensional and three-dimensional data acquisition, recalculate the polarizability and improve the feasibility of data reprocessing;

4. the utility model supports 32bit fully differential analog acquisition, the sampling rate can be configured at 4kHz, weak signals can be distinguished, the signal to noise ratio is improved, and simultaneously, the recovery of acquired signals without distortion of interference can be facilitated;

5. the utility model has the noise of 1/20 of the same kind, only 3uv/sqrt (Hz), and can be used for the signal acquisition of weak signals and long-term monitoring;

6. the utility model supports the traditional delay synchronization and the GPS time synchronization, further improves the time synchronization precision of transmitting and receiving;

7. the utility model can provide transmitter control signals and is compatible with various conventional transmitting systems;

8. the utility model designs the power consumption of the whole instrument to be less than 2w for low power consumption, and the internal lithium battery supplies power, so that the instrument can continuously work for a plurality of days;

9. when the three-dimensional data is collected, any host can be configured as a current recorder, so that the use is flexible and the purchase cost is reduced;

10. the utility model discloses support wireless and wired control mode, accessible PC end and cell-phone end remote control.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an application scenario of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a two-dimensional and three-dimensional full-functional electric field time sequence collecting and processing system, which includes a set of core motherboard, on which three main modules are arranged: the controller, the coding module and the signal conversion module are respectively connected with the controller, the front end of the coding module is connected with the signal conversion module, and the rear end of the coding module is connected with the flash memory module.

The core mainboard is a system processing function module and mainly realizes the functions of minimum system and product external interfaces, such as an Ethernet interface, a display interface, a storage interface, a wireless interface, an external power line/charger interface, an external controller interface, a CH interface group and the like; the controller mainly plays a role in man-machine interaction, machine working mode, electric signal output control and data acquisition state feedback, and is the core of digital signal input and output of each module and each interface; the coding module is a functional module and mainly realizes data noise identification and filtration, data primary processing and data format conversion, the front end of the coding module is connected with a signal converter, digital analog signals from the signal converter are subjected to noise reduction and processing and are stamped with a timestamp to be converted into a specific format, and then the specific format is stored in a flash memory module; the signal conversion module is used for converting the electric signals transmitted by the receiver into analog and digital signals.

The functions of the interfaces and modules on the core motherboard are as follows:

CH1-6: the CH1-6 interface is functionally combined with the coding module, a 32bit 6 channel is supported to collect analog electric signals, analog input is of a fully differential structure, background noise is extremely low, and the highest sampling rate of 4kHz can be set; any channel of the port can also be connected with an external current sensor and is used for a current recording channel during three-dimensional observation.

PW: an external power line interface and a charger interface. When the instrument works, the electric quantity is insufficient, and an external power supply can be connected through the interface (when the external power supply is connected, please pay attention to the positive and negative electrodes of the external power supply, and polarity reverse connection protection is embedded); the built-in lithium battery of the device can be charged through the interface.

TXC: and an external controller interface. When the transmitter is externally connected, the TXC is used as an interface between the transmitter and the local machine to transmit the transmitting frequency required by the transmitter.

SD: an SD card slot. The SD card is used as storage equipment for acquiring original time sequence data, and can be directly accessed to a PC (personal computer) end to copy the original time sequence data of three-dimensional observation; and transmitting the time sequence original data of the two-dimensional observation to a PC or a mobile phone terminal through WIFI.

And (3) RJ45: the host computer can be connected to the PC through a network cable, and the host computer is configured and monitored in a wired mode by using PC end control software.

GPS: a GPS antenna is built in. The GPS and the built-in quartz clock are complementary in function, and after the instrument is subjected to GPS time service once, the accurate clock in the instrument still ensures that each sampling point has an accurate time tag. The built-in quartz clock can be matched with the coding module and the signal converter when an instrument collects data, a timestamp is stamped on the collected real-time data, and the data are stored in the flash memory module or the PC and the mobile phone terminal.

WIFI: and a WIFI antenna is arranged in the wireless communication device, and the WIFI is connected with a PC or a mobile phone to control acquisition and transmission of an original time sequence.

A battery module: the independent battery module effectively controls the power consumption of the instrument, and increases the working time of the equipment under the condition that the battery capacity is fixed. The battery module is a center module of the PW and the battery pack module, when the PW has voltage input, electricity supplies power to the instrument through the battery module to enable the instrument to work normally, and meanwhile, a part of electric energy charges the battery pack module; when the PW has no voltage input, the battery pack module discharges, and the instrument is powered through the battery module to normally work. When the electric energy of the battery is insufficient, the battery module has a voltage stabilizing function and provides a signal of insufficient electric quantity for the instrument controller, the controller coordinates the power consumption of each module according to the working state of the instrument and feeds back the power consumption to the battery module, and the battery module closes the power supply of unnecessary modules according to instructions to keep the necessary modules working normally, so that the energy consumption is reduced to a great extent.

A flash memory module: the mainboard is integrated with a flash memory module, stores the acquired data of the starting work and backs up the data to the SD card in real time, and the module has a data integrity self-checking function. The flash memory module temporarily stores the data of the coding module according to a special format and copies the data into the SD card through the SD interface. When the instrument is connected with a PC or a mobile phone in a WiFi or RJ45 mode, data can be read from the flash memory module through control software of the PC or the mobile phone.

In this embodiment, the battery pack further includes a battery module connected to the core motherboard.

In this embodiment, the controller includes a main control unit, and a human-computer interaction unit, a working mode control unit, an electrical signal output control unit, and a data acquisition state feedback unit respectively connected to the main control unit.

In this embodiment, the encoding module includes a data noise identification unit, a data noise filtering unit, a data preliminary processing unit, and a data format conversion unit, which are connected to each other.

In this embodiment, the signal conversion module is connected to the signal receiver by using a signal converter.

One application scenario of the present system is shown in fig. 2.

The method is compatible with two-dimensional real-time data acquisition, real-time data result monitoring and three-dimensional continuous time sequence acquisition, namely a working mode of two-dimensional and three-dimensional excitation, and the two-dimensional acquisition can realize real-time data acquisition control and acquisition result display; the three-dimensional acquisition can monitor the acquisition state and data in real time, and also can realize blind acquisition and improve the working efficiency; the two-dimensional data acquisition and the three-dimensional data acquisition are both time series acquisition, and data reprocessing and data filter selection are supported, so that the signal to noise ratio is further improved; the time window can be changed after the two-dimensional data and the three-dimensional data are collected, the polarizability is recalculated, and the feasibility of data reprocessing is improved; the method supports 32-bit fully differential analog acquisition, has a configurable sampling rate of 4kHz, can distinguish weak signals, improves the signal-to-noise ratio, and is beneficial to suppressing interference undistorted signals recovered; the noise is 1/20 of the same instrument, is only 3uv/sqrt (Hz), and can be used for signal acquisition of weak signals and long-term monitoring; the traditional delay synchronization and the GPS time synchronization are supported, and the time synchronization precision of transmitting and receiving is further improved; can provide transmitter control signals, can be compatible with a plurality of conventional transmitting systems; the low power consumption design has the advantages that the power consumption of the whole instrument is less than 2w, and an internal lithium battery supplies power and can continuously work for multiple days; when three-dimensional data is collected, any host can be configured as a current recorder, so that the use is flexible and the purchase cost is reduced; and wireless and wired control modes are supported, and remote control can be realized through a PC (personal computer) end and a mobile phone end.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A two-dimensional and three-dimensional full-function electric field time sequence acquisition and processing system is characterized in that: the system comprises a core mainboard, wherein the core mainboard is provided with a controller, and an encoding module and a signal conversion module which are respectively connected with the controller; the battery pack module is connected with the core mainboard;

the core mainboard is also provided with an external interface connected with the controller, and the external interface comprises an Ethernet interface, a display interface, a storage interface, a wireless interface, an external power line/charger interface, an external controller interface and a CH interface group;

still be equipped with WIFI module, GPS module, crystal oscillator module and power module on the core mainboard.

2. The two-dimensional and three-dimensional full-function electric field time series acquisition and processing system of claim 1, wherein: the controller comprises a main control unit, and a human-computer interaction unit, a working mode control unit, an electric signal output control unit and a data acquisition state feedback unit which are respectively connected with the main control unit.

3. The two-dimensional and three-dimensional full-function electric field time series acquisition and processing system of claim 1, wherein: the coding module comprises a data noise identification unit, a data noise filtering unit, a data primary processing unit and a data format conversion unit which are connected with each other.

4. The two-dimensional and three-dimensional full-function electric field time series acquisition and processing system of claim 1, wherein: the front end of the coding module is connected with the signal conversion module, and the rear end of the coding module is connected with the flash memory module.

5. The two-dimensional and three-dimensional full-function electric field time series acquisition and processing system of claim 1, wherein: the signal conversion module adopts a signal converter and is connected with a signal receiver.

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