Charging and downloading integrated cabinet and seismic exploration system
By introducing a voltage follower circuit into the interface circuit board of the charging and downloading integrated cabinet, the test failure problem caused by the red cabinet phenomenon was solved, and efficient data acquisition index testing was achieved.
Patent Information
- Application Number
- CN202423173166.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing charging and download integrated cabinets are prone to red cabinet phenomenon during testing, causing the acquisition index test of all seismic exploration node instruments to fail. Existing solutions are time-consuming, labor-intensive, and have low testing efficiency.
A voltage follower circuit is introduced into the interface circuit board of the charging and downloading integrated cabinet. The input terminal of the voltage follower circuit is connected to the first interface circuit, and the output terminal is connected to the second interface circuit, forming a circuit structure with high input impedance and low output impedance. This ensures that the signal transmission between the signal source components and the seismic exploration node instruments is not affected by the abnormal voltage of the spoofing station.
This effectively prevented the occurrence of the "red cabinet" phenomenon, ensured that the signal source component could send and collect test signals normally, and improved test efficiency.
Smart Images
Figure CN223693687U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of seismic exploration, and particularly relates to a charging and downloading integrated cabinet and a seismic exploration system. BACKGROUND
[0002] As a kind of seismic node instrument, compared with traditional conventional seismic exploration instrument, the seismic node instrument has the advantages of light weight, small size and flexible layout, and is more practical for large number of geophysical prospecting acquisition under complex and difficult surface conditions, and has been widely applied to geophysical prospecting operations in various terrains at home and abroad in recent years.
[0003] Before the seismic node instrument is used for field acquisition, acquisition index test needs to be carried out on the charging and downloading integrated cabinet to ensure that the seismic node instrument can normally acquire. The charging and downloading integrated cabinet has a plurality of interfaces for connecting the seismic node instrument to enable the acquisition index test of a plurality of seismic node instruments at the same time.
[0004] In the process of simultaneously testing the acquisition index of a plurality of seismic node instruments on the charging and downloading integrated cabinet, the seismic node instrument that fails itself and causes all the seismic node instruments connected to the charging and downloading integrated cabinet to fail in the test is called a trick station, and the existence of the trick station causes the acquisition index test of all the seismic node instruments to fail to proceed normally. At present, in order to ensure the smooth test, the binary search method is generally used to find and eliminate the trick station. However, the binary search method for finding and eliminating the trick station is time-consuming and labor-intensive, which seriously reduces the test efficiency. CONTENT OF THE INVENTION
[0005] The embodiment of the present application provides a charging and downloading integrated cabinet and a seismic exploration system. The problem that the charging and downloading integrated cabinet of the prior art may occur red cabinet phenomenon can be solved, and the technical solution is as follows:
[0006] On the one hand, a charging and downloading integrated cabinet is provided, which comprises a signal source assembly and a plurality of interface circuit boards.
[0007] The signal source assembly has a plurality of signal interface ends, and the plurality of signal interface ends correspond one-to-one to the plurality of interface circuit boards.
[0008] Each of the interface circuit boards comprises a first interface circuit, a second interface circuit and a voltage follower circuit; the voltage follower circuit has an input end and an output end, the input end of the voltage follower circuit is electrically connected to the first interface circuit, and the output end of the voltage follower circuit is electrically connected to the second interface circuit.
[0009] The first interface circuit of the interface circuit board is electrically connected with the corresponding signal interface end, and the second interface circuit of the interface circuit board is used for electrically connecting with the seismic exploration node instrument.
[0010] Optionally, the voltage follower circuit comprises at least one operational amplifier, the operational amplifier having a positive input pin, a negative input pin and an output pin.
[0011] The positive input pin is electrically connected with the first interface circuit, and the negative input pin and the output pin are connected and electrically connected with the second interface circuit.
[0012] Optionally, the voltage follower circuit further comprises at least one first protective resistor and at least one second protective resistor.
[0013] The at least one first protective resistor corresponds to the at least one operational amplifier one by one, one end of the first protective resistor is electrically connected with the positive input pin of the corresponding operational amplifier, and the other end is electrically connected with the first interface circuit.
[0014] The at least one second protective resistor corresponds to the at least one operational amplifier one by one, one end of the second protective resistor is electrically connected with the negative input pin and the output pin of the corresponding operational amplifier, and the other end is electrically connected with the second interface circuit.
[0015] Optionally, the resistance value of the first protective resistor and the second protective resistor ranges from 4 kilo-ohms to 5 kilo-ohms.
[0016] Optionally, the voltage follower circuit comprises two operational amplifiers, which are a first operational amplifier and a second operational amplifier respectively.
[0017] The first interface circuit comprises a first positive interface and a first negative interface, and the second interface circuit comprises a second positive interface and a second negative interface.
[0018] The positive input pin of the first operational amplifier is connected with the first positive interface, the negative input pin and the output pin of the first operational amplifier are both connected with the second positive interface, the positive input pin of the second operational amplifier is connected with the first negative interface, and the negative input pin and the output pin of the second operational amplifier are both connected with the second negative interface.
[0019] Optionally, a chip is distributed on the interface circuit board, the chip internally integrates the two operational amplifiers, and the chip has two positive input pins, two negative input pins, two output pins, one power pin and one ground pin.
[0020] The first interface circuit further comprises a first power supply interface and a first ground interface; and the second interface circuit further comprises a second power supply interface.
[0021] The first power supply interface and the second power supply interface are electrically connected with the power supply pin of the chip; and the first ground interface is electrically connected with the ground pin of the chip.
[0022] Optionally, the interface circuit board further comprises a third protection resistor, one end of the third protection resistor is electrically connected with the second power supply interface, and the other end of the third protection resistor is electrically connected with the power supply pin of the chip and the first power supply interface respectively.
[0023] Optionally, the first interface circuit further comprises a plurality of first function interfaces; and the second interface circuit further comprises a plurality of second function interfaces.
[0024] The plurality of first function interfaces are electrically connected with the plurality of second function interfaces one by one.
[0025] Optionally, the interface circuit board further comprises a charging positive electrode interface and a charging negative electrode interface, the charging positive electrode interface is used for being electrically connected with the positive electrode of the seismic exploration node instrument, and the charging negative electrode interface is used for being electrically connected with the negative electrode of the seismic exploration node instrument.
[0026] In another aspect, a seismic exploration system is also provided, comprising a charging and downloading integrated cabinet and a plurality of seismic exploration node instruments, the charging and downloading integrated cabinet is any of the above charging and downloading integrated cabinets, and the plurality of seismic exploration node instruments are electrically connected with the plurality of interface circuit boards one by one.
[0027] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:
[0028] Since the input end of the voltage follower circuit in the interface circuit board is electrically connected with the first interface circuit, and the output end of the voltage follower circuit is electrically connected with the second interface circuit, the voltage follower circuit is connected between the first interface circuit and the second interface circuit, and then the voltage follower circuit is connected between the signal interface end of the signal source assembly and the seismic exploration node instrument. And since the voltage follower circuit has the characteristics of high input impedance and low output impedance, under the action of the voltage follower circuit, it can ensure that the acquisition test signal emitted by the signal source assembly can be normally transmitted to the seismic exploration node instrument through the voltage follower circuit, and at the same time, it can also ensure that the abnormal voltage of the trick station will not affect the signal source assembly, so that the signal source assembly can send normal acquisition test signals to test the acquisition indicators of other normal seismic exploration node instruments. In this way, by setting the voltage follower, the occurrence of the red cabinet phenomenon is directly avoided, and the test efficiency is ensured. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a structural diagram of a charging and download integrated cabinet based on existing technology.
[0031] Figure 2 This is a structural schematic diagram of a charging and download integrated cabinet provided in an embodiment of this application;
[0032] Figure 3 This is a schematic diagram of the structure of a voltage follower provided in an embodiment of this application;
[0033] Figure 4 This is a circuit diagram of an interface circuit board provided in an embodiment of this application;
[0034] Figure 5 This is a schematic diagram of the structure of a chip provided in an embodiment of this application;
[0035] Figure 6 This is a circuit diagram of another interface circuit board provided in an embodiment of this application. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0037] Please refer to the following: Figure 1 , Figure 1 This is a schematic diagram of a prior art charging and downloading integrated cabinet. The cabinet may include a signal source component 010 and multiple interface circuit boards 020. The signal source component 010 has multiple signal interface terminals 011, which are connected one-to-one with the multiple interface circuit boards 020. Each interface circuit board 020 can be used to connect to a seismic exploration node instrument 030. Thus, the signal source component 010 in the charging and downloading integrated cabinet can send acquisition and testing signals to the seismic exploration node instrument 030 through the corresponding interface circuit board 020 to perform acquisition index testing on the seismic exploration node instrument 030. Here, the acquisition and testing signals sent by the signal source component 010 can be transmitted to the corresponding interface circuit board 020 through the signal interface terminal 011, and then to the seismic exploration node instrument 030 connected to that interface circuit board 020.
[0038] It should be noted that the signal interface end 011 of the signal source assembly 010 is directly connected with the corresponding interface circuit board 020, that is, the signal interface end 011 and the corresponding interface circuit board 020 can be directly connected by wires and there is no other component between the signal interface end 011 and the corresponding interface circuit board 020. Similarly, the interface circuit board 020 is also directly connected with the corresponding seismic exploration node instrument 030, that is, the interface circuit board 020 and the corresponding seismic exploration node instrument 030 can be directly connected by wires and there is no other component between the interface circuit board 020 and the corresponding seismic exploration node instrument 030.
[0039] In the prior art, as shown in Figure 1 The interface circuit board 020 can include a first interface 021 and a second interface 022, the first interface 021 can be used to connect with the corresponding signal interface end 011, and the second interface 020 can be connected with the mobile seismic exploration node instrument 030. Here, the first interface 021 and the second interface 022 in the interface circuit board 020 are also directly connected, that is, the first interface 021 and the second interface 022 can be directly connected by wires and there is no other component between the first interface 021 and the second interface 022.
[0040] Therefore, in the prior art, the signal source assembly 010 is connected with the seismic exploration node instrument 030 through the interface circuit board 020. In this way, although it is beneficial for the transmission of the acquisition test signal sent by the signal source assembly 010 to the seismic exploration node instrument 030 through the interface circuit board 020, since the signal source assembly 010 is directly connected with the seismic exploration node instrument 030, when the seismic exploration node instrument 030 fails and the voltage of the seismic exploration node instrument 030 is abnormal, the abnormal voltage will directly affect the signal source assembly 010, causing the acquisition test signal sent by the signal source assembly 010 to be deviated, and further causing the acquisition index test of all normal seismic exploration node instruments 030 connected with the signal source assembly 011 to fail.
[0041] Here, the seismic exploration node instrument 030 that fails itself and causes the acquisition index test of all seismic exploration node instruments 030 to fail is generally called a trick station. When the trick station causes the acquisition test signal sent by the signal source assembly 010 to be deviated, and further causes the acquisition index test of all seismic exploration node instruments 030 to fail, the charging and downloading integrated cabinet will display a red light. At present, this situation can be called red cabinet phenomenon. In the prior art, to solve the red cabinet phenomenon, a dichotomy method is generally used to find the trick station to ensure the normal progress of the acquisition index test. However, the dichotomy method for finding and removing the trick station is time-consuming and laborious, which seriously reduces the test efficiency.
[0042] The embodiment of the present application provides a charging and downloading integrated cabinet, please refer to Figure 2 , Figure 2 is a structure schematic diagram of the charging and downloading integrated cabinet provided by the embodiment of the present application. The charging and downloading integrated cabinet in the present application comprises a signal source assembly 100 and a plurality of interface circuit boards 200.
[0043] The signal source assembly 100 in the charging and downloading integrated cabinet has a plurality of signal interface ends 101, and the plurality of signal interface ends 101 in the signal source assembly 100 can correspond to the interface circuit boards 200 one by one. Here, similarly, each interface circuit board 200 can be used for connecting one seismic exploration node instrument 030, and the signal source assembly 100 in the charging and downloading integrated cabinet can send acquisition test signals to the seismic exploration node instrument 030 through the signal interface ends 101 and the interface circuit boards 200, so as to test the acquisition indexes of the seismic exploration node instrument 020 through the acquisition test signals.
[0044] In the present application, each interface circuit board 200 can comprise a first interface circuit 201, a second interface circuit 202 and a voltage follower circuit 203. The voltage follower circuit 203 in the interface circuit board 200 can have an input end I and an output end O, the input end I of the voltage follower circuit 203 can be electrically connected with the first interface circuit 201, and the output end O of the voltage follower circuit 203 can be electrically connected with the second interface circuit 202. The first interface circuit 201 in the interface circuit board 200 can be electrically connected with the corresponding signal interface end 101 in the signal source assembly 100, and the second interface circuit 202 in the interface circuit board 200 can be electrically connected with the seismic exploration node instrument 030.
[0045] It should be noted that the signal interface end 101 of the signal source assembly 100 and the first interface circuit 201 in the interface circuit board 200 in the present application can be directly connected through a wire and no other components are connected between the signal interface end 101 and the first interface circuit 201, and the second interface circuit 202 in the interface circuit board 200 and the seismic exploration node instrument 030 can be directly connected through a wire and no other components are connected between the second interface circuit 202 and the seismic exploration node instrument 030.
[0046] Thus, since the input end I of the voltage follower circuit 203 in the interface circuit board 200 is electrically connected with the first interface circuit 201, and the output end O of the voltage follower circuit 203 is electrically connected with the second interface circuit 202, the voltage follower circuit 203 is connected between the first interface circuit 201 and the second interface circuit 202, and further connected between the signal interface end 101 of the signal source assembly 100 and the seismic exploration node instrument 030. Since the voltage follower circuit 203 has the characteristics of high input impedance and low output impedance, under the action of the voltage follower circuit 203, the acquisition test signal emitted by the signal source assembly 100 can be normally transmitted to the seismic exploration node instrument 030 through the voltage follower circuit 203, and at the same time, the abnormal voltage of the trick station cannot affect the signal source assembly 100, so that the signal source assembly 100 can send normal acquisition test signals, and other normal seismic exploration node instruments 030 can normally perform acquisition index testing. In this way, by setting the voltage follower, the occurrence of the red cabinet phenomenon is directly avoided, and the test efficiency is ensured.
[0047] In summary, the embodiment of the present application provides a charging and downloading integrated cabinet, which comprises a signal source assembly and a plurality of interface circuit boards. Since the input end of the voltage follower circuit in the interface circuit board is electrically connected with the first interface circuit, and the output end of the voltage follower circuit is electrically connected with the second interface circuit, the voltage follower circuit is connected between the first interface circuit and the second interface circuit, and further connected between the signal interface end of the signal source assembly and the seismic exploration node instrument. Since the voltage follower circuit has the characteristics of high input impedance and low output impedance, under the action of the voltage follower circuit, the acquisition test signal emitted by the signal source assembly can be normally transmitted to the seismic exploration node instrument through the voltage follower circuit, and at the same time, the abnormal voltage of the trick station cannot affect the signal source assembly, so that the signal source assembly can send normal acquisition test signals to test the acquisition index of other normal seismic exploration node instruments. In this way, by setting the voltage follower, the occurrence of the red cabinet phenomenon is directly avoided, and the test efficiency is ensured.
[0048] Optionally, please refer to Figure 3 , Figure 3 is a structural schematic diagram of a voltage follower provided by the embodiment of the present application. The voltage follower circuit 203 can comprise at least one operational amplifier 2031, which can have a positive input pin A, a negative input pin B and an output pin C. The positive input pin A in the operational amplifier 2031 can be electrically connected with the first interface circuit 201 in the interface circuit board 200, and the negative input pin B and the output pin C are connected and electrically connected with the second interface circuit 202.
[0049] It should be noted that the negative input pin B and the output pin C of the operational amplifier 2031 can be connected to form a voltage follower, and the voltage follower can have the characteristics of high input impedance and low output impedance, so that the voltage follower circuit 203 in the interface circuit board 200 can have the characteristics of high input impedance and low output impedance. Here, the positive input pin A of the operational amplifier 2031 can be extended as the input end of the voltage follower, and further extended as the input end I of the voltage follower circuit 203. The negative input pin B and the output pin C of the operational amplifier 2031 can be connected to form the output end of the voltage follower, and further extended as the output end O of the voltage follower circuit 203.
[0050] Optionally, as shown in Figure 3 The voltage follower circuit 203 in the interface circuit board 200 can further include at least one first protection resistor 2032 and at least one second protection resistor 2033. The at least one first protection resistor 2032 in the voltage follower circuit 203 can correspond to the at least one operational amplifier 2031 one by one, one end of the first protection resistor 2032 can be electrically connected to the positive input pin A of the corresponding operational amplifier 2031, and the other end can be electrically connected to the first interface circuit 201. That is, the first protection resistor 2032 can be connected in series at the input end of the corresponding voltage follower to protect the corresponding voltage follower.
[0051] The at least one second protection resistor 2033 in the voltage follower circuit 203 can correspond to the at least one operational amplifier 2031 one by one, one end of the second protection resistor 2033 can be electrically connected to the negative input pin B and the output pin C of the corresponding operational amplifier 2031, and the other end can be electrically connected to the second interface circuit 202. That is, the negative input pin B and the output pin C of the operational amplifier 2031 can be connected in series with the second protection resistor 2033, so that the second protection resistor 2033 can be connected in series at the output end of the corresponding voltage follower to further protect the corresponding voltage follower.
[0052] In this way, the input end of each voltage follower composed of an operational amplifier in the voltage follower circuit 203 can be connected with a first protection resistor 2032, and the output end of each voltage follower composed of an operational amplifier in the voltage follower circuit 203 can be connected with a second protection resistor 2033, so as to ensure that the voltage follower will not be damaged if the voltage across the voltage follower changes suddenly.
[0053] Optionally, the resistance of the first protection resistor 2032 and the second protection resistor 2033 in the voltage follower circuit 203 can range from 4 kΩ to 5 kΩ. It should be noted that the resistance of the first protection resistor 2032 and the second protection resistor 2033 in the voltage follower circuit 203 can depend on the seismic exploration node instrument 030. For example, the seismic exploration node instrument 030 can be an eSeis node unit, and the charging and downloading integrated cabinet can be a charging and downloading integrated cabinet adapted to the eSeis node unit. In this case, the resistance of the first protection resistor 2031 and the second protection resistor 2032 in the interface circuit board 200 in the charging and downloading integrated cabinet can be 4.7 kΩ.
[0054] In this application, please refer to Figure 4 , Figure 4 is a circuit diagram of an interface circuit board provided by an embodiment of the present application, Figure 4 The thicker line shown in the circuit diagram of the interface circuit board 200 can be the voltage follower circuit 203 in the interface circuit board 200. Figure 4 The thinner line shown in the circuit diagram of the interface circuit board 200 can be the first interface circuit 201 and the second interface circuit 202 in the interface circuit board 200. The voltage follower circuit 203 in the interface circuit board 200 can include two operational amplifiers 2031, which are respectively a first operational amplifier 2031a and a second operational amplifier 2031b. The first interface circuit 201 in the interface circuit board 200 can include a first positive interface 2011 and a first negative interface 2012, and the second interface circuit 202 in the interface circuit board 200 can include a second positive interface 2021 and a second negative interface 2022.
[0055] Here, the positive input pin A1 of the first operational amplifier 2013a is connected to the first positive interface 2011 in the first interface circuit 201, and the negative input pin B1 and the output pin C1 in the first operational amplifier 2013a can be connected to the second positive interface 2021 in the second interface circuit 202. Here, the negative input pin B1 and the output pin C1 in the first operational amplifier 2013a are connected to the second positive interface 2021 in the second interface circuit 202, so that the first operational amplifier 2013a can constitute a first voltage follower.
[0056] The positive input pin A2 of the second operational amplifier 2013b is connected with the first negative interface 2012 in the first interface circuit 201, and the negative input pin B2 and the output pin C2 of the second operational amplifier are both electrically connected with the second negative interface 2022 in the second interface circuit 202. Here, the negative input pin B2 and the output pin C2 of the second operational amplifier 2013b are connected and then electrically connected with the second negative interface 2022 in the second interface circuit board 202, so that the second operational amplifier 2013b can constitute a second voltage follower.
[0057] It should be noted that the first positive interface 2011 and the first negative interface 2012 in the first interface circuit 201 can be a pair of test signal interfaces, and the second positive interface 2021 and the second negative interface 2022 in the second interface circuit 202 can be a pair of test signal interfaces corresponding to the first positive interface 2011 and the first negative interface 2012.
[0058] In the prior art, the first positive interface 2011 in the first interface circuit 201 and the second positive interface 2021 in the second interface circuit 202 are directly connected by wires and no other components are connected between the first positive interface 2011 and the second positive interface 2021, so that the test signal can be directly transmitted from the first positive interface 2011 to the second positive interface 2012. Similarly, the first negative interface 2012 in the first interface circuit 201 and the second negative interface 2022 in the second interface circuit 202 are directly connected by wires and no other components are connected between the first negative interface 2012 and the second negative interface 2022, so that the test signal can be directly transmitted from the first negative interface 2012 to the second negative interface 2022. Thus, the abnormal voltage caused by the rogue station connected with the second interface circuit 202 will directly affect the signal source assembly 100 connected with the first interface circuit 201.
[0059] Therefore, in the present application, a first voltage follower is arranged between the first positive interface 2011 in the first interface circuit 201 and the second positive interface 2021 in the second interface circuit 202. Through the action of the first voltage follower, it can be ensured that the test signal can be transmitted from the first positive interface 2011 to the second positive interface 2012, and at the same time, it can be ensured that the abnormal voltage of the rogue station will not affect the signal source assembly 100. A second voltage follower is arranged between the first negative interface 2012 in the first interface circuit 202 and the second negative interface 2022 in the second interface circuit 202. Through the action of the second voltage follower, it can be ensured that the test signal can be transmitted from the first negative interface 2012 to the second negative interface 2022, and at the same time, it can be ensured that the abnormal voltage of the rogue station will not affect the signal source assembly 100.
[0060] Optionally, as shown in FIG. 2, the first interface circuit 201 and the second interface circuit 202 can be connected with each other through a plurality of interface circuits 203.Figure 4 As shown in FIG. 1, in the case where the voltage follower circuit 203 in the interface circuit board 200 includes two operational amplifiers 2031, the voltage follower circuit 203 can further include two first protection resistors 2032 and two second protection resistors 2033. One first protection resistor 2032 can be connected between the positive input pin A1 of the first operational amplifier 2013a and the first positive interface 2011 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C1 of the first operational amplifier 2013a and the second positive interface 2021 in the second interface circuit 202, so as to protect the first voltage follower located between the first positive interface 2011 and the second positive interface 2021. One first protection resistor 2032 can be connected between the positive input pin A2 of the second operational amplifier 2013b and the first negative interface 2012 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C2 of the second operational amplifier 2013b and the second negative interface 2022 in the second interface circuit 202, so as to protect the second voltage follower located between the first negative interface 2012 and the second negative interface 2022.
[0061] In the present application, as shown in FIG. 1, the interface circuit board 200 can include a first interface circuit 201, a second interface circuit 202, and a voltage follower circuit 203. Figure 4 Figure 5 As shown in FIG. 1, the interface circuit board 200 can include a first interface circuit 201, a second interface circuit 202, and a voltage follower circuit 203. Figure 5 As shown in FIG. 1, in the case where the voltage follower circuit 203 in the interface circuit board 200 includes two operational amplifiers 2031, the voltage follower circuit 203 can further include two first protection resistors 2032 and two second protection resistors 2033. One first protection resistor 2032 can be connected between the positive input pin A1 of the first operational amplifier 2013a and the first positive interface 2011 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C1 of the first operational amplifier 2013a and the second positive interface 2021 in the second interface circuit 202, so as to protect the first voltage follower located between the first positive interface 2011 and the second positive interface 2021. One first protection resistor 2032 can be connected between the positive input pin A2 of the second operational amplifier 2013b and the first negative interface 2012 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C2 of the second operational amplifier 2013b and the second negative interface 2022 in the second interface circuit 202, so as to protect the second voltage follower located between the first negative interface 2012 and the second negative interface 2022.
[0062] As shown in FIG. 1, in the case where the voltage follower circuit 203 in the interface circuit board 200 includes two operational amplifiers 2031, the voltage follower circuit 203 can further include two first protection resistors 2032 and two second protection resistors 2033. One first protection resistor 2032 can be connected between the positive input pin A1 of the first operational amplifier 2013a and the first positive interface 2011 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C1 of the first operational amplifier 2013a and the second positive interface 2021 in the second interface circuit 202, so as to protect the first voltage follower located between the first positive interface 2011 and the second positive interface 2021. One first protection resistor 2032 can be connected between the positive input pin A2 of the second operational amplifier 2013b and the first negative interface 2012 in the first interface circuit 201, and one second protection resistor 2033 can be connected between the output pin C2 of the second operational amplifier 2013b and the second negative interface 2022 in the second interface circuit 202, so as to protect the second voltage follower located between the first negative interface 2012 and the second negative interface 2022. Figure 4 Figure 5 As shown, the chip 300 in the interface circuit board 200 can also include a power supply pin 301 and a ground pin 302. The first interface circuit 201 further includes a first power supply interface 2013 and a first ground interface 2014. The second interface circuit 202 can also include a second power supply interface 2023 and a second ground interface 2024. The first power supply interface 2013 in the first interface circuit 201 and the second power supply interface 2023 in the second interface circuit 202 can be electrically connected to the power supply pin 301 of the chip 300, and the first ground interface 2014 in the first interface circuit 201 and the second ground interface 2024 in the second interface circuit 202 can be electrically connected to the ground pin 302 of the chip 300. Here, the first power supply interface 2013 in the first interface circuit 201 and the second power supply interface 2023 in the second interface circuit 202 are connected in series, so that the charging and downloading integrated cabinet can supply power to the seismic exploration node instrument 030. In this way, the charging and downloading integrated cabinet can supply power to the chip 300 through the first power supply interface 2013.
[0063] Optionally, as shown in Figure 4 As shown, the interface circuit board 200 can also include a third protective resistor 204, one end of the third protective resistor 204 can be electrically connected to the second power supply interface 2023 of the second interface circuit 202, and the other end of the third protective resistor 204 can be electrically connected to the power supply pin 301 of the chip 300 and the first power supply interface 2013 of the first interface circuit 200, respectively.
[0064] In this application, please refer to Figure 6 , Figure 6 is another circuit diagram of an interface circuit board provided by the embodiments of the present application. The first interface circuit 201 can further include a plurality of first functional interfaces, and the second interface circuit board 201 can further include a plurality of second functional interfaces. The plurality of first functional interfaces in the first interface circuit 201 can be connected one-to-one with the plurality of second functional interfaces in the second interface circuit 202.
[0065] Here, the first positive interface 2011 and the first negative interface 2012 in the first interface circuit board 201 in the above embodiments can be a pair of first functional interfaces, and correspondingly, the second positive interface 201 and the second negative interface 2022 in the second interface circuit board 202 can be a pair of second functional interfaces. The first positive interface 2011 and the first negative interface 2012, and the second positive interface 2021 and the second negative interface 2022 are functional interfaces for transmitting acquisition test signals.
[0066] As shown in Figure 6As shown, the first interface circuit 201 can further include a first data positive interface 2015 and a first data negative interface 2016, and correspondingly, the second interface circuit 202 can further include a second data negative interface 2025 and a second data negative interface 2026. The first data positive interface 2015 and the first data negative interface 2016 form a pair of first functional interfaces, and the second data negative interface 2025 and the second data negative interface 2026 form a pair of corresponding second functional interfaces. The first data positive interface 2015 and the first data negative interface 2016, the second data positive interface 2025 and the second data negative interface 2026 can be used to transmit data signals to download seismic data in the seismic exploration node instrument 030 to the charging and downloading integrated cabinet.
[0067] As shown, Figure 6 the first interface circuit 201 can further include a first communication positive interface 2017 and a first communication negative interface 2018, and correspondingly, the second interface circuit 202 can further include a second communication negative interface 2027 and a second communication negative interface 2028. The first communication positive interface 2017 and the first communication negative interface 2018 form a pair of first functional interfaces, and the second communication negative interface 2027 and the second communication negative interface 2028 form a pair of corresponding second functional interfaces. The first communication positive interface 2017 and the first communication negative interface 2018, the second communication positive interface 2027 and the second communication negative interface 2028 can be used to transmit communication signals.
[0068] As shown, Figure 6 the first interface circuit 201 can further include a first handshake interface 2019, and correspondingly, the second interface circuit 202 can further include a second handshake interface 2029. The first handshake positive interface 2019 and the first power interface 2013 form a pair of first functional interfaces, and the second handshake negative interface 2029 and the second power interface 2023 form a pair of corresponding second functional interfaces. The first handshake positive interface 2019 and the first power interface 2013, the second handshake positive interface 2029 and the second power interface 2023 can be used to transmit handshake signals.
[0069] In the present application, the interface circuit board 200 can further include a charging positive electrode interface 2051 for electrical connection with the positive electrode of the seismic exploration node instrument 030 and a charging ground interface 2052 for electrical connection with the negative electrode of the seismic exploration node instrument 030. Here, the charging positive electrode interface 2051 in the interface circuit board 200 can be connected with the power positive electrode 401 in the charging and downloading integrated cabinet, and the charging ground interface 2052 in the interface circuit board 200 can be connected with the second ground interface 402 in the charging and downloading integrated cabinet. In this way, the charging and downloading integrated cabinet can charge the seismic exploration node instrument 030 through the charging positive electrode interface 2051 and the charging ground interface 2052. The second ground interface 402, the charging ground interface 2052, and the first ground interface 2014 in the present application are all connected.
[0070] In summary, the embodiment of the present application provides a charging and downloading integrated cabinet, which includes a signal source assembly and a plurality of interface circuit boards. Since the input end of the voltage follower circuit in the interface circuit board is electrically connected with the first interface circuit, and the output end of the voltage follower circuit is electrically connected with the second interface circuit, the voltage follower circuit is connected between the first interface circuit and the second interface circuit, and then the voltage follower circuit is connected between the signal interface end of the signal source assembly and the seismic exploration node instrument. Since the voltage follower circuit has the characteristics of high input impedance and low output impedance, under the action of the voltage follower circuit, the abnormal voltage of the trick station cannot affect the signal source assembly while ensuring that the acquisition test signal emitted by the signal source assembly can be normally transmitted to the seismic exploration node instrument, so that the signal source assembly can send normal acquisition test signals to test the acquisition indicators of other normal seismic exploration node instruments. By setting the voltage follower, the occurrence of the red cabinet phenomenon is directly avoided, and the test efficiency is ensured.
[0071] The embodiment of the present application also provides a seismic exploration system, which includes a charging and downloading integrated cabinet and a plurality of seismic exploration node instruments. The charging and downloading integrated cabinet in the seismic exploration system is the charging and downloading integrated cabinet in the above-mentioned embodiment, and the plurality of seismic exploration node instruments in the seismic exploration system are electrically connected with the plurality of interface circuit boards in the charging and downloading integrated cabinet in a one-to-one correspondence.
[0072] It should be noted that after the interface circuit board in the charging and downloading integrated cabinet is designed and manufactured, a verification experiment can be performed on the interface circuit board to verify whether the interface circuit board can prevent the occurrence of the red cabinet phenomenon.
[0073] For example, the charging and downloading integrated cabinet can include a plurality of first interface circuit boards and a plurality of second interface circuit boards. The first interface circuit board is the interface circuit board in the above-mentioned embodiment, and the second interface circuit board is the interface circuit board in the prior art.
[0074] In the verification experiment, a plurality of fake stations corresponding to a plurality of first interface circuit boards can be selected and connected to the corresponding first interface circuit boards, and a plurality of normal seismic exploration node instruments corresponding to a plurality of second interface circuit boards can be selected and connected to the corresponding second interface circuit boards. Then the charging and downloading integrated cabinet tests the acquisition indicators of all the seismic exploration node instruments, and the results show that a plurality of tests pass. Then one fake station and one normal seismic exploration node instrument are exchanged, that is, the fake station is connected to the second interface circuit board. The acquisition indicator test is performed again, and the results show that the whole cabinet station body test fails, and the red cabinet phenomenon occurs. Through this verification experiment, it is concluded that the first interface circuit board can prevent the occurrence of the red cabinet phenomenon.
[0075] In the present application, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.
[0076] The above only describes optional embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A charging and downloading integrated cabinet, characterized in that, The utility model relates to a signal source assembly and a plurality of interface circuit boards, the signal source assembly has a plurality of signal interface terminals corresponding to the plurality of interface circuit boards, each interface circuit board includes a first interface circuit, a second interface circuit and a voltage follower circuit, the voltage follower circuit has an input terminal and an output terminal, the input terminal of the voltage follower circuit is electrically connected with the first interface circuit, and the output terminal of the voltage follower circuit is electrically connected with the second interface circuit, wherein the first interface circuit of the interface circuit board is electrically connected with the corresponding signal interface terminal, and the second interface circuit of the interface circuit board is used for being electrically connected with a seismic exploration node instrument. The voltage follower circuit includes at least one operational amplifier, the operational amplifier has a positive input pin, a negative input pin and an output pin, wherein the positive input pin is electrically connected with the first interface circuit, and the negative input pin and the output pin are connected and electrically connected with the second interface circuit. The voltage follower circuit further includes at least one first protection resistor and at least one second protection resistor, the at least one first protection resistor corresponds to the at least one operational amplifier, one end of the first protection resistor is electrically connected with the positive input pin of the corresponding operational amplifier, and the other end is electrically connected with the first interface circuit, the at least one second protection resistor corresponds to the at least one operational amplifier, one end of the second protection resistor is electrically connected with the negative input pin and the output pin of the corresponding operational amplifier, and the other end is electrically connected with the second interface circuit. The resistance value range of the first protection resistor and the second protection resistor is 4-5kΩ. The voltage follower circuit includes two operational amplifiers, which are a first operational amplifier and a second operational amplifier respectively, the first interface circuit includes a first positive interface and a first negative interface, and the second interface circuit includes a second positive interface and a second negative interface, wherein the positive input pin of the first operational amplifier is connected with the first positive interface, the negative input pin and the output pin of the first operational amplifier are connected with the second positive interface, the positive input pin of the second operational amplifier is connected with the first negative interface, and the negative input pin and the output pin of the second operational amplifier are connected with the second negative interface.
2. The charging and downloading integrated cabinet according to claim 1, characterized in that, The interface circuit board is distributed with a chip, the chip is internally integrated with two operational amplifiers, and the chip has two positive input pins, two negative input pins, two output pins, one power supply pin and one ground pin, the first interface circuit further includes a first power supply interface and a first ground interface, and the second interface circuit further includes a second power supply interface, wherein the first power supply interface and the second power supply interface are electrically connected with the power supply pin of the chip, and the first ground interface is electrically connected with the ground pin of the chip. 3. The charging and downloading integrated cabinet according to claim 2, characterized in that, 4. The charging and downloading integrated cabinet according to claim 3, characterized in that, 5. The charging and downloading integrated cabinet according to any one of claims 2 to 4, characterized in that, 6. The charging and downloading integrated cabinet according to claim 5, characterized in that, 7. The charging and downloading integrated cabinet according to claim 6, characterized in that, The interface circuit board further comprises a third protection resistor, one end of the third protection resistor is electrically connected with the second power supply, and the other end of the third protection resistor is respectively electrically connected with the power supply pin of the chip and the first power supply.
8. The charging and downloading integrated cabinet according to claim 6, characterized in that, The first interface circuit further comprises a plurality of first function interfaces; and the second interface circuit further comprises a plurality of second function interfaces. The plurality of first function interfaces and the plurality of second function interfaces are electrically connected one by one.
9. The charging and downloading integrated cabinet according to claim 8, characterized in that, The interface circuit board further comprises a charging positive electrode interface and a charging negative electrode interface, the charging positive electrode interface is used for electrically connecting with the positive electrode of the seismic exploration node instrument, and the charging negative electrode interface is used for electrically connecting with the negative electrode of the seismic exploration node instrument.
10. A seismic exploration system, characterized by, The charging and downloading integrated cabinet comprises: a plurality of seismic exploration node instruments, the charging and downloading integrated cabinet is the charging and downloading integrated cabinet in any one of claims 1-9, and the plurality of seismic exploration node instruments are electrically connected with the plurality of interface circuit boards one by one.