Seismometer general auxiliary control box

Abstract

The utility model discloses a general auxiliary control box for a seismometer, relates to an auxiliary device for mounting and maintaining the seismometer, and aims to solve the problem of inconvenience in observation caused by the fact that the conventional seismometer and a data acquisition unit are not placed in a station at the same place. The key circuit is used for inputting an operation instruction; an instruction signal output end of the key circuit is connected with an instruction signal input end of the main control circuit; the main control circuit is used for receiving an instruction signal and generating a control signal according to the instruction signal; meanwhile, a control signal is sent to the seismometer; the processor is also used for receiving feedback signals of the seismometer and generating the running state of the seismometer according to the feedback signals; and the display signal input end of the display is connected with the display signal output end of the main control circuit. The beneficial effects are that the cable is directly connected to the seismometer, the display can be used to directly check the operation condition of the seismometer on site, and the use is very convenient.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for the installation and maintenance of seismometers. Background Technology

[0002] Currently, seismometers installed at stations are directly connected to data acquisition units via cycloidal lines. During on-site installation, it is impossible to directly observe the quality of the seismometers. The waveforms need to be observed on the host computer software of the data acquisition unit. In some stations where the data acquisition unit and the seismometer are not located in the same place, observation is very inconvenient. Utility Model Content

[0003] The purpose of this invention is to solve the problem of inconvenient observation caused by existing stations where the seismometer and data acquisition unit are not placed in the same location, and to propose a universal auxiliary control box for seismometers.

[0004] The universal auxiliary control box for a seismometer described in this utility model includes a main control circuit, a button circuit, and a display.

[0005] The button circuit is used to input operation commands; and the command signal output terminal of the button circuit is connected to the command signal input terminal of the main control circuit.

[0006] The main control circuit is used to receive command signals and generate control signals according to the command signals; at the same time, it sends the control signals to the seismometer; it is also used to receive feedback signals from the seismometer and generate the operating status of the seismometer according to the feedback signals.

[0007] The display signal input terminal of the display is connected to the display signal output terminal of the main control circuit.

[0008] Furthermore, the main control circuit includes a microcontroller chip U1 and capacitors C1 to C4;

[0009] Pin 1 of the microcontroller chip U1 is the input terminal for the first operation command signal;

[0010] Pin 2 of the microcontroller chip U1 is the input terminal for the second operation command signal;

[0011] Pin 4 of the microcontroller chip U1 is the first RS485 communication signal output interface;

[0012] Pin 5 of the microcontroller chip U1 is the first RS485 communication signal input interface;

[0013] Pin 6 of the microcontroller chip U1 is the first RS485 communication signal enable control interface.

[0014] Pin 7 of the microcontroller chip U1 is the reset signal input terminal;

[0015] Pin 9 of the microcontroller chip U1 is grounded;

[0016] Pin 10 of the microcontroller chip U1 is connected to one end of capacitor C1, and the other end of capacitor C1 is grounded.

[0017] Pin 11 of the microcontroller chip U1 is the input terminal for operation command signal number four;

[0018] Pin 12 of the microcontroller chip U1 is the display reset signal output interface;

[0019] Pin 13 of the microcontroller chip U1 is the display chip select signal output interface;

[0020] Pin 14 of the microcontroller chip U1 is the display data transmission interface;

[0021] Pin 15 of the microcontroller chip U1 is the serial clock output interface for the display.

[0022] Pin 16 of the microcontroller chip U1 is the display data command control interface;

[0023] Pin 17 of the microcontroller chip U1 is the input terminal for the third operation command signal;

[0024] Pin 18 of the microcontroller chip U1 is grounded;

[0025] Pin 19 of the microcontroller chip U1 is connected to pin 26 of the microcontroller chip U1 and one end of capacitor C2, and connected to the 3.3V power supply output terminal; the other end of capacitor C2 is grounded.

[0026] Pin 20 of the microcontroller chip U1 is grounded;

[0027] Pin 22 of the microcontroller chip U1 is the vertical component signal input interface of the seismometer 5;

[0028] Pin 23 of the microcontroller chip U1 is the input interface for the east-west component signal of the seismometer 5;

[0029] Pin 24 of the microcontroller chip U1 is the north-south component signal input interface of the seismometer 5;

[0030] Pin 25 of the microcontroller chip U1 is grounded;

[0031] Pin 27 of the microcontroller chip U1 is the input terminal for operation command signal number seven;

[0032] Pin 28 of the microcontroller chip U1 is the input terminal for operation command signal number six;

[0033] Pin 30 of the microcontroller chip U1 is the second RS485 communication signal enable control interface.

[0034] Pin 31 of the microcontroller chip U1 is the second RS485 communication signal output interface;

[0035] Pin 32 of the microcontroller chip U1 is the second RS485 communication signal input interface;

[0036] Pin 37 of the microcontroller chip U1 is the first control signal output interface;

[0037] Pin 38 of the microcontroller chip U1 is connected to one end of capacitor C3 and connected to the 3.3V power supply output terminal; the other end of capacitor C3 is grounded.

[0038] Pin 39 of the microcontroller chip U1 is the external clock signal input terminal;

[0039] Pin 41 of the microcontroller chip U1 is grounded;

[0040] Pin 42 of the microcontroller chip U1 is the second control signal output interface;

[0041] The second voltage signal input terminal of pin 46 of the microcontroller chip U1;

[0042] The first voltage signal input terminal of pin 47 of the microcontroller chip U1;

[0043] Pin 48 of the microcontroller chip U1 is the voltage signal input terminal;

[0044] Pin 53 of the microcontroller chip U1 is the input terminal for the 10 operation command signal;

[0045] Pin 54 of the microcontroller chip U1 is the input terminal for operation command signal number nine;

[0046] Pin 55 of the microcontroller chip U1 is the input terminal for operation command signal No. 8;

[0047] Pin 56 of the microcontroller chip U1 is connected to one end of capacitor C4 and grounded;

[0048] Pin 57 of the microcontroller chip U1 is connected to the other end of capacitor C4 and then to the 3.3V power supply output.

[0049] Pin 60 of the microcontroller chip U1 is the input terminal for operation command signal number 5;

[0050] Pin 61 of the microcontroller chip U1 is the wireless network control signal input terminal;

[0051] Pin 62 of the microcontroller chip U1 is the wireless network start signal input terminal;

[0052] Pin 63 of the microcontroller chip U1 is the wireless network shutdown signal input terminal;

[0053] Pin 64 of the microcontroller chip U1 is the wireless network traffic signal transmission terminal.

[0054] Furthermore, the main control circuit 1 also includes an aviation connector;

[0055] The aviation plug is connected to the seismometer 5.

[0056] Furthermore, the main control circuit 1 also includes a reset circuit;

[0057] The reset circuit includes a reset switch SB21;

[0058] Pin 1 of reset switch SB21 serves as the reset signal output terminal; pin 2 of reset switch SB21 is connected to pin 1 of reset switch SB21.

[0059] Pin 3 of reset switch SB21 is connected to pin 4 of reset switch SB21 and grounded; pin 1 and pin 2 of reset switch SB21 are normally closed terminals of reset switch SB1, and pin 3 and pin 4 of reset switch SB21 are normally open terminals of reset switch SB21.

[0060] Furthermore, the main control circuit 1 also includes a clock circuit;

[0061] The clock circuit includes a crystal oscillator Y1, capacitor C5, and capacitor C6.

[0062] Pin 2 of the crystal oscillator Y1 is grounded;

[0063] The third pin of the crystal oscillator Y1 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is grounded; and the third pin of the crystal oscillator Y1 is the external clock signal output terminal.

[0064] Pin 4 of the crystal oscillator Y1 is connected to one end of capacitor C5 and the 3.3V power supply output terminal, while the other end of capacitor C5 is grounded.

[0065] Furthermore, the button circuit 2 includes instruction switches SB1 to SB20, resistor R1, and resistor R2;

[0066] Pin 1 of the command switch SB1 is simultaneously connected to one end of resistor R1, pin 1 of command switch SB1, pin 1 of command switch SB3, pin 2 of command switch SB3, pin 1 of command switch SB5, pin 2 of command switch SB5, pin 1 of command switch SB7, pin 2 of command switch SB7, pin 1 of command switch SB9, pin 2 of command switch SB9, pin 1 of command switch SB11, pin 2 of command switch SB11, pin 1 of command switch SB13, pin 2 of command switch SB13, pin 1 of command switch SB15, pin 2 of command switch SB15, pin 1 of command switch SB17, pin 2 of command switch SB17, pin 1 of command switch SB19, and pin 2 of command switch SB19; and pin 1 of command switch SB1 is the first voltage signal output terminal; the other end of resistor R1 is connected to the 3.3V power supply output terminal;

[0067] Pin 1 of command switch SB2 is simultaneously connected to one end of resistor R2, pin 1 of command switch SB2, pin 1 of command switch SB4, pin 2 of command switch SB4, pin 1 of command switch SB6, pin 2 of command switch SB6, pin 1 of command switch SB8, pin 2 of command switch SB8, pin 1 of command switch SB10, pin 2 of command switch SB10, pin 1 of command switch SB12, pin 2 of command switch SB12, pin 1 of command switch SB14, pin 2 of command switch SB14, pin 1 of command switch SB16, pin 2 of command switch SB16, pin 1 of command switch SB18, pin 2 of command switch SB18, pin 1 of command switch SB20, and pin 2 of command switch SB20; and pin 1 of command switch SB1 is the second voltage signal output terminal; the other end of resistor R2 is connected to the 3.3V power supply output terminal;

[0068] Pin 3 of the instruction switch SB1 is connected to pin 4 of instruction switch SB1, pin 3 of instruction switch SB2, and pin 4 of instruction switch SB2, and pin 3 of instruction switch SB1 is the output terminal of operation instruction signal 1.

[0069] Pin 3 of the instruction switch SB3 is simultaneously connected to pin 4 of the instruction switch SB3, pin 3 of the instruction switch SB4, and pin 4 of the instruction switch SB4, and pin 3 of the instruction switch SB3 is the output terminal of the second operation instruction signal.

[0070] Pin 3 of the instruction switch SB5 is simultaneously connected to pin 4 of the instruction switch SB5, pin 3 of the instruction switch SB6, and pin 4 of the instruction switch SB6, and pin 3 of the instruction switch SB5 is the output terminal of the third operation instruction signal.

[0071] Pin 3 of the instruction switch SB7 is simultaneously connected to pin 4 of the instruction switch SB7, pin 3 of the instruction switch SB8, and pin 4 of the instruction switch SB8, and pin 3 of the instruction switch SB7 is the output terminal of the fourth operation instruction signal.

[0072] Pin 3 of the instruction switch SB9 is simultaneously connected to pin 4 of the instruction switch SB9, pin 3 of the instruction switch SB10, and pin 4 of the instruction switch SB10, and pin 3 of the instruction switch SB9 is the output terminal of the fifth operation instruction signal.

[0073] Pin 3 of the instruction switch SB11 is simultaneously connected to pin 4 of the instruction switch SB11, pin 3 of the instruction switch SB12, and pin 4 of the instruction switch SB12, and pin 3 of the instruction switch SB11 is the output terminal of the sixth operation instruction signal.

[0074] Pin 3 of the instruction switch SB13 is simultaneously connected to pin 4 of the instruction switch SB13, pin 3 of the instruction switch SB14, and pin 4 of the instruction switch SB14, and pin 3 of the instruction switch SB13 is the output terminal of the seventh operation instruction signal.

[0075] Pin 3 of the instruction switch SB15 is simultaneously connected to pin 4 of the instruction switch SB15, pin 3 of the instruction switch SB16, and pin 4 of the instruction switch SB16, and pin 3 of the instruction switch SB15 is the output terminal of the No. 8 operation instruction signal.

[0076] Pin 3 of the instruction switch SB17 is simultaneously connected to pin 4 of the instruction switch SB17, pin 3 of the instruction switch SB18, and pin 4 of the instruction switch SB18, and pin 3 of the instruction switch SB17 is the output terminal of the operation instruction signal No. 9.

[0077] Pin 3 of the instruction switch SB19 is simultaneously connected to pin 4 of the instruction switch SB19, pin 3 of the instruction switch SB20, and pin 4 of the instruction switch SB20, and pin 3 of the instruction switch SB19 is the output terminal of the tenth operation instruction signal.

[0078] Furthermore, the button circuit 2 also includes a logic gate integrated chip U2 and a capacitor C7;

[0079] Pin 1 of the logic gate integrated chip U2 is the first voltage signal input terminal;

[0080] Pin 2 of the logic gate integrated chip U2 is the second voltage signal input terminal;

[0081] Pin 3 of the logic gate integrated chip U2 is the voltage signal output terminal;

[0082] Pin 4 of logic gate integrated chip U2 is connected to both pin 5 and pin 7 of logic gate integrated chip U2, and is grounded;

[0083] Pin 9 of logic gate integrated chip U2 is connected to pins 11, 12, and 13 of logic gate integrated chip U2, and is grounded.

[0084] Pin 14 of the logic gate integrated chip U2 is connected to one end of capacitor C7 and the 3.3V power supply output terminal; the other end of capacitor C7 is grounded.

[0085] Furthermore, it also includes the outer casing;

[0086] The outer shell is a hollow cuboid structure;

[0087] The main control circuit is located inside the casing;

[0088] The display is located at the upper left corner of the front sidewall of the housing.

[0089] Furthermore, it also includes voltmeters;

[0090] The voltmeter is used to measure the directional feedback swing signal voltage of the seismograph; and the voltmeter is located at the upper right corner of the front side wall of the housing.

[0091] Compared with the prior art, the present invention has the following advantages:

[0092] The universal auxiliary control box for seismometers described in this invention serves as a testing fixture. It connects directly to the seismometer via a single cable, eliminating the need for a data acquisition unit or remote observation via host computer software. The universal auxiliary control box is installed at the seismometer station, directly replacing both the data acquisition unit and the host computer. This allows for on-site troubleshooting of the seismometer's operation. Furthermore, the universal auxiliary control box features a simple interface with switches, buttons, and a display that shows the seismometer's information and status in real time, making it very convenient to use. Attached Figure Description

[0093] Figure 1This is a block diagram illustrating the working principle of a general auxiliary control box for a seismometer as described in Specific Implementation Method 1;

[0094] Figure 2 This is a three-dimensional structural diagram of a universal auxiliary control box for seismometers as described in Specific Implementation Method 1;

[0095] Figure 3 This is a circuit diagram of the main control circuit in the second specific implementation method;

[0096] Figure 4 This is a circuit diagram of the reset circuit in Specific Implementation Method Four;

[0097] Figure 5 This is a circuit diagram of the clock circuit in Specific Implementation Method Five;

[0098] Figure 6 The circuit diagram of the button circuit in Specific Implementation Method Six;

[0099] Figure 7 This is a circuit diagram of the logic gate integrated circuit in Specific Implementation Method Seven. Detailed Implementation

[0100] Specific Implementation Method 1: Combination Figures 1 to 2 This embodiment describes a general auxiliary control box for seismometers, which includes a main control circuit 1, a button circuit 2, and a display 4.

[0101] The button circuit 2 is used to input operation commands; and the command signal output terminal of the button circuit 2 is connected to the command signal input terminal of the main control circuit 1.

[0102] The main control circuit 1 is used to receive command signals and generate control signals according to the command signals; at the same time, it sends the control signals to the seismometer 5; it is also used to receive feedback signals from the seismometer 5 and generate the operating status of the seismometer 5 according to the feedback signals.

[0103] The display signal input terminal of the display 4 is connected to the display signal output terminal of the main control circuit 1.

[0104] In this embodiment, the operation commands include operation command signal 1, operation command signal 2, operation command signal 3, operation command signal 4, operation command signal 5, operation command signal 6, operation command signal 7, operation command signal 8, operation command signal 9, and operation command signal 10; the control signals include a first control signal and a second control signal; the feedback signals include the vertical component signal of seismograph 5, the east-west component signal of seismograph 5, and the north-south component signal of seismograph 5; the display 4 is used to cyclically display the information of seismograph 5 and to display the current status during operation. The universal auxiliary control box for seismographs is directly connected to seismograph 5 via a cable. The zero position, status, and internal information of seismograph 5 can be directly observed through the display 4. The interface of the universal auxiliary control box for seismographs consists of simple button operations, making it very convenient to use. After the seismograph 5 is powered on for 2 minutes, it can be zeroed, locked, opened, calibrated, adjusted, parameter ranges adjusted, working ranges switched, and calibration type switched using the universal auxiliary control box for these operations.

[0105] Specific Implementation Method Two: Combination Figure 3 This embodiment is a further limitation of the specific embodiment one. In this embodiment, the main control circuit 1 includes a microcontroller chip U1 and capacitors C1 to C4.

[0106] Pin 1 of the microcontroller chip U1 is the input terminal for the first operation command signal;

[0107] Pin 2 of the microcontroller chip U1 is the input terminal for the second operation command signal;

[0108] Pin 4 of the microcontroller chip U1 is the first RS485 communication signal output interface;

[0109] Pin 5 of the microcontroller chip U1 is the first RS485 communication signal input interface;

[0110] Pin 6 of the microcontroller chip U1 is the first RS485 communication signal enable control interface.

[0111] Pin 7 of the microcontroller chip U1 is the reset signal input terminal;

[0112] Pin 9 of the microcontroller chip U1 is grounded;

[0113] Pin 10 of the microcontroller chip U1 is connected to one end of capacitor C1, and the other end of capacitor C1 is grounded.

[0114] Pin 11 of the microcontroller chip U1 is the input terminal for operation command signal number four;

[0115] Pin 12 of the microcontroller chip U1 is the display reset signal output interface;

[0116] Pin 13 of the microcontroller chip U1 is the display chip select signal output interface;

[0117] Pin 14 of the microcontroller chip U1 is the display data transmission interface;

[0118] Pin 15 of the microcontroller chip U1 is the serial clock output interface for the display.

[0119] Pin 16 of the microcontroller chip U1 is the display data command control interface;

[0120] Pin 17 of the microcontroller chip U1 is the input terminal for the third operation command signal;

[0121] Pin 18 of the microcontroller chip U1 is grounded;

[0122] Pin 19 of the microcontroller chip U1 is connected to pin 26 of the microcontroller chip U1 and one end of capacitor C2, and connected to the 3.3V power supply output terminal; the other end of capacitor C2 is grounded.

[0123] Pin 20 of the microcontroller chip U1 is grounded;

[0124] Pin 22 of the microcontroller chip U1 is the vertical component signal input interface of the seismometer 5;

[0125] Pin 23 of the microcontroller chip U1 is the input interface for the east-west component signal of the seismometer 5;

[0126] Pin 24 of the microcontroller chip U1 is the north-south component signal input interface of the seismometer 5;

[0127] Pin 25 of the microcontroller chip U1 is grounded;

[0128] Pin 27 of the microcontroller chip U1 is the input terminal for operation command signal number seven;

[0129] Pin 28 of the microcontroller chip U1 is the input terminal for operation command signal number six;

[0130] Pin 30 of the microcontroller chip U1 is the second RS485 communication signal enable control interface.

[0131] Pin 31 of the microcontroller chip U1 is the second RS485 communication signal output interface;

[0132] Pin 32 of the microcontroller chip U1 is the second RS485 communication signal input interface;

[0133] Pin 37 of the microcontroller chip U1 is the first control signal output interface;

[0134] Pin 38 of the microcontroller chip U1 is connected to one end of capacitor C3 and connected to the 3.3V power supply output terminal; the other end of capacitor C3 is grounded.

[0135] Pin 39 of the microcontroller chip U1 is the external clock signal input terminal;

[0136] Pin 41 of the microcontroller chip U1 is grounded;

[0137] Pin 42 of the microcontroller chip U1 is the second control signal output interface;

[0138] The second voltage signal input terminal of pin 46 of the microcontroller chip U1;

[0139] The first voltage signal input terminal of pin 47 of the microcontroller chip U1;

[0140] Pin 48 of the microcontroller chip U1 is the voltage signal input terminal;

[0141] Pin 53 of the microcontroller chip U1 is the input terminal for the 10 operation command signal;

[0142] Pin 54 of the microcontroller chip U1 is the input terminal for operation command signal number nine;

[0143] Pin 55 of the microcontroller chip U1 is the input terminal for operation command signal No. 8;

[0144] Pin 56 of the microcontroller chip U1 is connected to one end of capacitor C4 and grounded;

[0145] Pin 57 of the microcontroller chip U1 is connected to the other end of capacitor C4 and then to the 3.3V power supply output.

[0146] Pin 60 of the microcontroller chip U1 is the input terminal for operation command signal number 5;

[0147] Pin 61 of the microcontroller chip U1 is the wireless network control signal input terminal;

[0148] Pin 62 of the microcontroller chip U1 is the wireless network start signal input terminal;

[0149] Pin 63 of the microcontroller chip U1 is the wireless network shutdown signal input terminal;

[0150] Pin 64 of the microcontroller chip U1 is the wireless network traffic signal transmission terminal.

[0151] In this embodiment, the microcontroller chip U1 is a PIC18FK22; the instruction signals received by the main control circuit 1 include operation instruction signal 1 (corresponding to pin 1 of microcontroller chip U1), operation instruction signal 2 (corresponding to pin 1 of microcontroller chip U1), operation instruction signal 3 (corresponding to pin 17 of microcontroller chip U1), operation instruction signal 4 (corresponding to pin 11 of microcontroller chip U1), operation instruction signal 5 (corresponding to pin 60 of microcontroller chip U1), operation instruction signal 6 (corresponding to pin 28 of microcontroller chip U1), operation instruction signal 7 (corresponding to pin 27 of microcontroller chip U1), and operation instruction signal 8. The system generates three operation commands: command signal (corresponding to pin 55 of microcontroller chip U1), operation command signal number 9 (corresponding to pin 54 of microcontroller chip U1), and operation command signal number 10 (corresponding to pin 53 of microcontroller chip U1). The generated control signals are the first control signal output from pin 37 of microcontroller chip U1 and the second control signal output from pin 42 of microcontroller chip U1. The feedback signals from seismometer 5 are the vertical component signal (corresponding to pin 22 of microcontroller chip U1), the east-west component signal (corresponding to pin 23 of microcontroller chip U1), and the north-south component signal (corresponding to pin 24 of microcontroller chip U1). Display 4 is connected to microcontroller chip U1 via pins 12, 13, 14, and 15 of the main control circuit 1, thus connecting display 4 to the main control circuit 1.

[0152] Specific Implementation Method 3: This implementation method further defines the universal auxiliary control box for seismometers described in Specific Implementation Method 2. In this implementation method, the main control circuit 1 also includes an aviation plug.

[0153] The aviation plug is connected to the seismometer 5.

[0154] In this embodiment, the aviation connector model is Y50EX-1626ZK14; the Y50EX-1626ZK14 aviation connector has 26 pins and a maximum current carrying capacity of 10A; the aviation connector is directly plugged into the seismometer 5 for convenient connection; when connecting the aviation connector to the microcontroller chip U1, simply connect pins 22, 23, 24, 37, and 42 of the microcontroller chip U1 to the corresponding aviation connectors.

[0155] Detailed Implementation Method Four: Combination Figure 4 This embodiment further defines the general auxiliary control box for seismometers described in Specific Embodiment 2. In this embodiment, the main control circuit 1 also includes a reset circuit.

[0156] The reset circuit includes a reset switch SB21;

[0157] Pin 1 of reset switch SB21 serves as the reset signal output terminal; pin 2 of reset switch SB21 is connected to pin 1 of reset switch SB21.

[0158] Pin 3 of reset switch SB21 is connected to pin 4 of reset switch SB21 and grounded; pin 1 and pin 2 of reset switch SB21 are normally closed terminals of reset switch SB1, and pin 3 and pin 4 of reset switch SB21 are normally open terminals of reset switch SB21.

[0159] In this embodiment, the reset circuit is used to reset the general auxiliary control box of the seismometer.

[0160] Specific Implementation Method Five: Combination Figure 5 This embodiment further defines the general auxiliary control box for a seismometer described in Specific Embodiment 2. In this embodiment, the main control circuit 1 also includes a clock circuit.

[0161] The clock circuit includes a crystal oscillator Y1, capacitor C5, and capacitor C6.

[0162] Pin 2 of the crystal oscillator Y1 is grounded;

[0163] The third pin of the crystal oscillator Y1 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is grounded; and the third pin of the crystal oscillator Y1 is the external clock signal output terminal.

[0164] Pin 4 of the crystal oscillator Y1 is connected to one end of capacitor C5 and the 3.3V power supply output terminal, while the other end of capacitor C5 is grounded.

[0165] In this embodiment, the crystal oscillator Y1 is an SMD3225; the output frequency of the crystal oscillator Y1 is 11.0592MHz. Pin 3 of the crystal oscillator Y1 is connected to pin 39 of the microcontroller chip U1.

[0166] Specific Implementation Method Six: Combination Figure 6 This embodiment further defines the universal auxiliary control box for seismometers described in Specific Embodiment 2. In this embodiment, the button circuit 2 includes command switches SB1 to SB20, resistor R1, and resistor R2.

[0167] Pin 1 of the command switch SB1 is simultaneously connected to one end of resistor R1, pin 1 of command switch SB1, pin 1 of command switch SB3, pin 2 of command switch SB3, pin 1 of command switch SB5, pin 2 of command switch SB5, pin 1 of command switch SB7, pin 2 of command switch SB7, pin 1 of command switch SB9, pin 2 of command switch SB9, pin 1 of command switch SB11, pin 2 of command switch SB11, pin 1 of command switch SB13, pin 2 of command switch SB13, pin 1 of command switch SB15, pin 2 of command switch SB15, pin 1 of command switch SB17, pin 2 of command switch SB17, pin 1 of command switch SB19, and pin 2 of command switch SB19; and pin 1 of command switch SB1 is the first voltage signal output terminal; the other end of resistor R1 is connected to the 3.3V power supply output terminal;

[0168] Pin 1 of command switch SB2 is simultaneously connected to one end of resistor R2, pin 1 of command switch SB2, pin 1 of command switch SB4, pin 2 of command switch SB4, pin 1 of command switch SB6, pin 2 of command switch SB6, pin 1 of command switch SB8, pin 2 of command switch SB8, pin 1 of command switch SB10, pin 2 of command switch SB10, pin 1 of command switch SB12, pin 2 of command switch SB12, pin 1 of command switch SB14, pin 2 of command switch SB14, pin 1 of command switch SB16, pin 2 of command switch SB16, pin 1 of command switch SB18, pin 2 of command switch SB18, pin 1 of command switch SB20, and pin 2 of command switch SB20; and pin 1 of command switch SB1 is the second voltage signal output terminal; the other end of resistor R2 is connected to the 3.3V power supply output terminal;

[0169] Pin 3 of the instruction switch SB1 is connected to pin 4 of instruction switch SB1, pin 3 of instruction switch SB2, and pin 4 of instruction switch SB2, and pin 3 of instruction switch SB1 is the output terminal of operation instruction signal 1.

[0170] Pin 3 of the instruction switch SB3 is simultaneously connected to pin 4 of the instruction switch SB3, pin 3 of the instruction switch SB4, and pin 4 of the instruction switch SB4, and pin 3 of the instruction switch SB3 is the output terminal of the second operation instruction signal.

[0171] Pin 3 of the instruction switch SB5 is simultaneously connected to pin 4 of the instruction switch SB5, pin 3 of the instruction switch SB6, and pin 4 of the instruction switch SB6, and pin 3 of the instruction switch SB5 is the output terminal of the third operation instruction signal.

[0172] Pin 3 of the instruction switch SB7 is simultaneously connected to pin 4 of the instruction switch SB7, pin 3 of the instruction switch SB8, and pin 4 of the instruction switch SB8, and pin 3 of the instruction switch SB7 is the output terminal of the fourth operation instruction signal.

[0173] Pin 3 of the instruction switch SB9 is simultaneously connected to pin 4 of the instruction switch SB9, pin 3 of the instruction switch SB10, and pin 4 of the instruction switch SB10, and pin 3 of the instruction switch SB9 is the output terminal of the fifth operation instruction signal.

[0174] Pin 3 of the instruction switch SB11 is simultaneously connected to pin 4 of the instruction switch SB11, pin 3 of the instruction switch SB12, and pin 4 of the instruction switch SB12, and pin 3 of the instruction switch SB11 is the output terminal of the sixth operation instruction signal.

[0175] Pin 3 of the instruction switch SB13 is simultaneously connected to pin 4 of the instruction switch SB13, pin 3 of the instruction switch SB14, and pin 4 of the instruction switch SB14, and pin 3 of the instruction switch SB13 is the output terminal of the seventh operation instruction signal.

[0176] Pin 3 of the instruction switch SB15 is simultaneously connected to pin 4 of the instruction switch SB15, pin 3 of the instruction switch SB16, and pin 4 of the instruction switch SB16, and pin 3 of the instruction switch SB15 is the output terminal of the No. 8 operation instruction signal.

[0177] Pin 3 of the instruction switch SB17 is simultaneously connected to pin 4 of the instruction switch SB17, pin 3 of the instruction switch SB18, and pin 4 of the instruction switch SB18, and pin 3 of the instruction switch SB17 is the output terminal of the operation instruction signal No. 9.

[0178] Pin 3 of the instruction switch SB19 is simultaneously connected to pin 4 of the instruction switch SB19, pin 3 of the instruction switch SB20, and pin 4 of the instruction switch SB20, and pin 3 of the instruction switch SB19 is the output terminal of the tenth operation instruction signal.

[0179] In this embodiment, pins 1 and 2 of command switches SB1 to SB20 are normally closed terminals, and pins 3 and 4 of command switches SB1 to SB20 are normally open terminals.

[0180] SW1 Calibration Enable Linear Switch: When the switch is turned to the left, the calibration enable pin is connected to a 3.3V high level, and the calibration circuit is connected. When the switch is turned to the right, the calibration enable pin is grounded, and the calibration circuit is disconnected.

[0181] SW2 calibration output short-circuit switch: When the switch is to the left, CAL_OUT is short-circuited to ground, which makes it more stable when debugging high frequencies with a signal generator. During normal operation, the switch is to the right, and CAL_OUT is left floating.

[0182] SW3 Directional Selection Switch: When individual control of each direction of the seismometer is required, this switch can be used to select the direction to be adjusted. From top to bottom, the switch can select UD, EW, NS directions (the fourth position is empty and should generally not be switched to the fourth position).

[0183] Test Point Area: All test points in this area are used for adjusting and testing seismic timing.

[0184] Wired remote control button area:

[0185] SB22 wired zeroing button – Pressing the button will simultaneously zero the seismometer in all three directions.

[0186] SB23 wired pendulum locking button – Pressing the button locks the pendulum in all three directions of the seismometer simultaneously.

[0187] SB24 wired swing release button - Pressing the button releases the swing in all three directions of the seismometer simultaneously.

[0188] Command control button area:

[0189] SB1 Zero Adjustment Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button only performs zero adjustment on the selected directional switch. Pressing it again terminates the zero adjustment operation. The zero position will also automatically stop when it is adjusted to the center.

[0190] SB2 Damping Increase Button – This button is used in conjunction with the SW3 Directional Selector Switch. Pressing the button increases the damping of that direction by one level (from level 1 to level 8).

[0191] SB3 Cycle Increase Button – This button is used in conjunction with the SW3 direction selector switch. Pressing the button increases the cycle of that direction by one level (from level 1 to level 8).

[0192] SB4 Fast Working Mode Button – Pressing this button puts the seismometer into the 1-second fast working mode, which can be used to quickly stabilize the pendulum. At this time, the meter can be used to observe whether the pendulum position in the selected direction of SW3 is centered.

[0193] SB5 Voltage / Current Calibration Type Switch Button – Press the button to switch between voltage and current calibration types. The currently selected calibration type can be observed on the screen. VOL indicates that the current calibration is in voltage type, and CUR indicates that the current calibration is in current type.

[0194] SB6 has 1 reserved button.

[0195] SB7 Working Mode Button – If the instrument is currently in the 1S fast working mode, after performing various operations on the instrument, you need to press this button to switch the instrument to the normal working mode.

[0196] SB8 Cycle Decrease Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button will decrease the cycle of that directional switch by one level (from level 1 to level 8).

[0197] SB9 Damping Reduction Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button will reduce the damping of that directional switch by one level (level 1 to level 8).

[0198] SB10 Locking Swing Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button will only lock the swing in that directional direction.

[0199] SB11 Release Swing Button – This button is used in conjunction with the SW3 Direction Selector Switch. Pressing the button will only release the swing in that direction.

[0200] SB12 Sensitivity Increase Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button increases the sensitivity of that directional switch by one level (level 1 to level 8).

[0201] SB13 Device Number Query Button – Pressing this button will send back the device number information from the seismometer, but it will not be displayed on the screen immediately. You will have to wait for the screen to cycle through the information to see it. This will be corrected in the future.

[0202] SB14 High Gain LP Output Button – A button reserved for the 360° seismometer.

[0203] SB15 has 2 reserved buttons.

[0204] SB16 has 3 reserved buttons.

[0205] SB17 Low Gain LP Output Button – A button reserved for the 360° seismometer.

[0206] SB18 Query Gear Position Button – Pressing the button will send back the gear position information for each direction of the seismograph, including period, damping, and sensitivity. However, it is not displayed directly on the screen; you need to wait for the screen to cycle through the information before you can see it. This will be corrected in the future.

[0207] SB19 Sensitivity Decrease Button – This button is used in conjunction with the SW3 directional selector switch. Pressing the button will decrease the sensitivity of that directional switch by one level (1 to 8 levels).

[0208] SB20 (Timing) Calibration Enable Button – This button's function is temporarily disabled.

[0209] Note: For initial setup of the seismometer, it is recommended to center all zero points of each direction using the control box after the instrument temperature has stabilized. In subsequent operation, if the vertical pendulum zero point is below 8V, it is not recommended to adjust the zero point easily. Under normal circumstances, the pendulum zero point will not change for 20 years and does not require readjustment.

[0210] Loosen the tightening nuts on the base feet of the seismometer 5, observe the circular level on the base, and adjust the base screws to level the instrument. First, adjust foot C so that the bubble is in the horizontal center of the level, then adjust foot B so that the bubble is in the vertical center. Repeat this once or twice until the bubble is in the exact center of the level. After leveling, if oscillation occurs, gently tap the instrument casing with your finger to restore normal operation.

[0211] Two minutes after powering on the seismometer, press the SB4 quick-operation button on the control box, and sequentially switch the SW3 directional selection switch to each directional position. Observe whether the meter pointer is centered. If the zero position is not centered, it is recommended to use the SB1 zero-adjustment button to perform a single-directional zero-adjustment operation, which facilitates timely detection of problems. After centering the zero positions of each directional position in sequence, if there are no other operations, press the SB7 operating mode button to switch the instrument back to normal operating mode.

[0212] Press the SB22 wire-controlled pendulum lock button to lock the pendulum in all three directions simultaneously.

[0213] You can also use the SB10 lock button and the SW3 directional selector switch to lock a specific directional component.

[0214] The R2 series seismographs automatically release their swing when powered on.

[0215] Press the SB23 wired swing release button to release the swing in all three directions simultaneously.

[0216] You can also use the SB11 swing release button and the SW3 direction selector switch to perform a swing release operation on a specific direction.

[0217] After the instrument has stabilized, calibration can be performed to observe the deviations in period, damping, and sensitivity. If the deviation exceeds 2%, confirm the current parameter setting via the on-screen cycle information. Then, use the SW3 directional selector switch and parameter adjustment buttons (SB2, SB9, SB12, SB19, SB3, SB8) to increase or decrease the parameters. The on-screen display will confirm whether the setting changes accordingly. Each adjustment will result in approximately a 1% to 3% change in the corresponding parameter. After adjustment, perform calibration again to confirm that all parameters have been adjusted. (Note: Adjusting sensitivity may have a slight impact on the period; increasing sensitivity will slightly decrease the period.)

[0218] Detailed Implementation Method Seven: Combination Figure 7 This embodiment further defines the general auxiliary control box for a seismometer described in Specific Embodiment Six. In this embodiment, the button circuit 2 also includes a logic gate integrated circuit.

[0219] The logic gate integrated circuit includes a logic gate integrated chip U2 and a capacitor C7;

[0220] Pin 1 of the logic gate integrated chip U2 is the first voltage signal input terminal;

[0221] Pin 2 of the logic gate integrated chip U2 is the second voltage signal input terminal;

[0222] Pin 3 of the logic gate integrated chip U2 is the voltage signal output terminal;

[0223] Pin 4 of logic gate integrated chip U2 is connected to both pin 5 and pin 7 of logic gate integrated chip U2, and is grounded;

[0224] Pin 9 of logic gate integrated chip U2 is connected to pins 11, 12, and 13 of logic gate integrated chip U2, and is grounded.

[0225] Pin 14 of the logic gate integrated chip U2 is connected to one end of capacitor C7 and the 3.3V power supply output terminal; the other end of capacitor C7 is grounded.

[0226] In this embodiment, the logic gate integrated chip U2 is model number SN74HC08D.

[0227] Specific Implementation Method Eight: This implementation method further defines the universal auxiliary control box for seismometers described in Specific Implementation Method One. In this implementation method, it also includes a housing 6.

[0228] The outer shell 6 is a hollow cuboid structure; the main control circuit 1 is located inside the outer shell 6; the display 4 is located at the upper left corner of the front side wall of the outer shell 6.

[0229] In this embodiment, the outer casing 6 facilitates the protection of the main control circuit 1 and allows for the installation of the display 4 and voltmeter 3 for direct observation of the seismometer. A fuse with a safety current of 3A is also installed on the outer casing 6, located between the voltmeter 3 and the display 4, to ensure the safe operation of the main control circuit 1.

[0230] Specific Implementation Method Nine: This implementation method further defines the universal auxiliary control box for seismometers described in Specific Implementation Method Eight. In this implementation method, a voltmeter 3 is also included.

[0231] The voltmeter 3 is used to measure the directional feedback placement signal voltage of the seismograph; and the voltmeter 3 is located at the upper right corner of the front side wall of the outer casing 6.

[0232] In this embodiment, when the seismometer 5 is in the fast operating mode, it is used to display the feedback position of the corresponding directional seismometer selected by the switch SW3, with the right side of the table being "positive" and the left side being "negative".

[0233] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A universal auxiliary control box for seismometers, characterized in that, It includes a main control circuit (1), a key circuit (2), and a display (4); The button circuit (2) is used to input operation commands; and the command signal output terminal of the button circuit (2) is connected to the command signal input terminal of the main control circuit (1). The main control circuit (1) is used to receive command signals and generate control signals according to the command signals; at the same time, it sends the control signals to the seismometer (5); it is also used to receive feedback signals from the seismometer (5) and generate the operating status of the seismometer (5) according to the feedback signals. The display signal input terminal of the display (4) is connected to the display signal output terminal of the main control circuit (1).

2. The universal auxiliary control box for a seismometer according to claim 1, characterized in that, The main control circuit (1) includes a microcontroller chip U1 and capacitors C1 to C4; Pin 1 of the microcontroller chip U1 is the input terminal for the first operation command signal; Pin 2 of the microcontroller chip U1 is the input terminal for the second operation command signal; Pin 4 of the microcontroller chip U1 is the first RS485 communication signal output interface; Pin 5 of the microcontroller chip U1 is the first RS485 communication signal input interface; Pin 6 of the microcontroller chip U1 is the first RS485 communication signal enable control interface. Pin 7 of the microcontroller chip U1 is the reset signal input terminal; Pin 9 of the microcontroller chip U1 is grounded; Pin 10 of the microcontroller chip U1 is connected to one end of capacitor C1, and the other end of capacitor C1 is grounded. Pin 11 of the microcontroller chip U1 is the input terminal for operation command signal number four; Pin 12 of the microcontroller chip U1 is the display reset signal output interface; Pin 13 of the microcontroller chip U1 is the display chip select signal output interface; Pin 14 of the microcontroller chip U1 is the display data transmission interface; Pin 15 of the microcontroller chip U1 is the serial clock output interface for the display. Pin 16 of the microcontroller chip U1 is the display data command control interface; Pin 17 of the microcontroller chip U1 is the input terminal for the third operation command signal; Pin 18 of the microcontroller chip U1 is grounded; Pin 19 of the microcontroller chip U1 is connected to pin 26 of the microcontroller chip U1 and one end of capacitor C2, and connected to the 3.3V power supply output terminal; the other end of capacitor C2 is grounded. Pin 20 of the microcontroller chip U1 is grounded; Pin 22 of the microcontroller chip U1 is the vertical component signal input interface of the seismometer (5); Pin 23 of the microcontroller chip U1 is the input interface for the east-west component signal of the seismometer (5); Pin 24 of the microcontroller chip U1 is the north-south component signal input interface of the seismometer (5); Pin 25 of the microcontroller chip U1 is grounded; Pin 27 of the microcontroller chip U1 is the input terminal for operation command signal number seven; Pin 28 of the microcontroller chip U1 is the input terminal for operation command signal number six; Pin 30 of the microcontroller chip U1 is the second RS485 communication signal enable control interface. Pin 31 of the microcontroller chip U1 is the second RS485 communication signal output interface; Pin 32 of the microcontroller chip U1 is the second RS485 communication signal input interface; Pin 37 of the microcontroller chip U1 is the first control signal output interface; Pin 38 of the microcontroller chip U1 is connected to one end of capacitor C3 and connected to the 3.3V power supply output terminal; the other end of capacitor C3 is grounded. Pin 39 of the microcontroller chip U1 is the external clock signal input terminal; Pin 41 of the microcontroller chip U1 is grounded; Pin 42 of the microcontroller chip U1 is the second control signal output interface; The second voltage signal input terminal of pin 46 of the microcontroller chip U1; The first voltage signal input terminal of pin 47 of the microcontroller chip U1; Pin 48 of the microcontroller chip U1 is the voltage signal input terminal; Pin 53 of the microcontroller chip U1 is the input terminal for the 10 operation command signal; Pin 54 of the microcontroller chip U1 is the input terminal for operation command signal number nine; Pin 55 of the microcontroller chip U1 is the input terminal for operation command signal No. 8; Pin 56 of the microcontroller chip U1 is connected to one end of capacitor C4 and grounded; Pin 57 of the microcontroller chip U1 is connected to the other end of capacitor C4 and then to the 3.3V power supply output. Pin 60 of the microcontroller chip U1 is the input terminal for operation command signal number 5; Pin 61 of the microcontroller chip U1 is the wireless network control signal input terminal; Pin 62 of the microcontroller chip U1 is the wireless network start signal input terminal; Pin 63 of the microcontroller chip U1 is the wireless network shutdown signal input terminal; Pin 64 of the microcontroller chip U1 is the wireless network traffic signal transmission terminal.

3. A universal auxiliary control box for a seismometer according to claim 2, characterized in that, The main control circuit (1) also includes an aviation connector; The aviation plug is connected to the seismometer (5).

4. A universal auxiliary control box for a seismometer according to claim 2, characterized in that, The main control circuit (1) also includes a reset circuit; The reset circuit includes a reset switch SB21; Pin 1 of reset switch SB21 serves as the reset signal output terminal; pin 2 of reset switch SB21 is connected to pin 1 of reset switch SB21. Pin 3 of reset switch SB21 is connected to pin 4 of reset switch SB21 and grounded; pin 1 and pin 2 of reset switch SB21 are normally closed terminals of reset switch SB1, and pin 3 and pin 4 of reset switch SB21 are normally open terminals of reset switch SB21.

5. A universal auxiliary control box for a seismometer according to claim 2, characterized in that, The main control circuit (1) also includes a clock circuit; The clock circuit includes a crystal oscillator Y1, capacitor C5, and capacitor C6. Pin 2 of the crystal oscillator Y1 is grounded; The third pin of the crystal oscillator Y1 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is grounded; and the third pin of the crystal oscillator Y1 is the external clock signal output terminal. Pin 4 of the crystal oscillator Y1 is connected to one end of capacitor C5 and the 3.3V power supply output terminal, while the other end of capacitor C5 is grounded.

6. A universal auxiliary control box for a seismometer according to claim 2, characterized in that, The key circuit (2) includes instruction switches SB1 to SB20, resistor R1 and resistor R2; Pin 1 of the command switch SB1 is simultaneously connected to one end of resistor R1, pin 1 of command switch SB1, pin 1 of command switch SB3, pin 2 of command switch SB3, pin 1 of command switch SB5, pin 2 of command switch SB5, pin 1 of command switch SB7, pin 2 of command switch SB7, pin 1 of command switch SB9, pin 2 of command switch SB9, pin 1 of command switch SB11, pin 2 of command switch SB11, pin 1 of command switch SB13, pin 2 of command switch SB13, pin 1 of command switch SB15, pin 2 of command switch SB15, pin 1 of command switch SB17, pin 2 of command switch SB17, pin 1 of command switch SB19, and pin 2 of command switch SB19; and pin 1 of command switch SB1 is the first voltage signal output terminal; the other end of resistor R1 is connected to the 3.3V power supply output terminal; Pin 1 of command switch SB2 is simultaneously connected to one end of resistor R2, pin 1 of command switch SB2, pin 1 of command switch SB4, pin 2 of command switch SB4, pin 1 of command switch SB6, pin 2 of command switch SB6, pin 1 of command switch SB8, pin 2 of command switch SB8, pin 1 of command switch SB10, pin 2 of command switch SB10, pin 1 of command switch SB12, pin 2 of command switch SB12, pin 1 of command switch SB14, pin 2 of command switch SB14, pin 1 of command switch SB16, pin 2 of command switch SB16, pin 1 of command switch SB18, pin 2 of command switch SB18, pin 1 of command switch SB20, and pin 2 of command switch SB20; and pin 1 of command switch SB1 is the second voltage signal output terminal; the other end of resistor R2 is connected to the 3.3V power supply output terminal; Pin 3 of the instruction switch SB1 is connected to pin 4 of instruction switch SB1, pin 3 of instruction switch SB2, and pin 4 of instruction switch SB2, and pin 3 of instruction switch SB1 is the output terminal of operation instruction signal 1. Pin 3 of the instruction switch SB3 is simultaneously connected to pin 4 of the instruction switch SB3, pin 3 of the instruction switch SB4, and pin 4 of the instruction switch SB4, and pin 3 of the instruction switch SB3 is the output terminal of the second operation instruction signal. Pin 3 of the instruction switch SB5 is simultaneously connected to pin 4 of the instruction switch SB5, pin 3 of the instruction switch SB6, and pin 4 of the instruction switch SB6, and pin 3 of the instruction switch SB5 is the output terminal of the third operation instruction signal. Pin 3 of the instruction switch SB7 is simultaneously connected to pin 4 of the instruction switch SB7, pin 3 of the instruction switch SB8, and pin 4 of the instruction switch SB8, and pin 3 of the instruction switch SB7 is the output terminal of the fourth operation instruction signal. Pin 3 of the instruction switch SB9 is simultaneously connected to pin 4 of the instruction switch SB9, pin 3 of the instruction switch SB10, and pin 4 of the instruction switch SB10, and pin 3 of the instruction switch SB9 is the output terminal of the fifth operation instruction signal. Pin 3 of the instruction switch SB11 is simultaneously connected to pin 4 of the instruction switch SB11, pin 3 of the instruction switch SB12, and pin 4 of the instruction switch SB12, and pin 3 of the instruction switch SB11 is the output terminal of the sixth operation instruction signal. Pin 3 of the instruction switch SB13 is simultaneously connected to pin 4 of the instruction switch SB13, pin 3 of the instruction switch SB14, and pin 4 of the instruction switch SB14, and pin 3 of the instruction switch SB13 is the output terminal of the seventh operation instruction signal. Pin 3 of the instruction switch SB15 is simultaneously connected to pin 4 of the instruction switch SB15, pin 3 of the instruction switch SB16, and pin 4 of the instruction switch SB16, and pin 3 of the instruction switch SB15 is the output terminal of the No. 8 operation instruction signal. Pin 3 of the instruction switch SB17 is simultaneously connected to pin 4 of the instruction switch SB17, pin 3 of the instruction switch SB18, and pin 4 of the instruction switch SB18, and pin 3 of the instruction switch SB17 is the output terminal of the operation instruction signal No.

9. Pin 3 of the instruction switch SB19 is simultaneously connected to pin 4 of the instruction switch SB19, pin 3 of the instruction switch SB20, and pin 4 of the instruction switch SB20, and pin 3 of the instruction switch SB19 is the output terminal of the tenth operation instruction signal.

7. A universal auxiliary control box for a seismometer according to claim 6, characterized in that, The button circuit (2) also includes logic gate integrated circuits; The logic gate integrated circuit includes a logic gate integrated chip U2 and a capacitor C7; Pin 1 of the logic gate integrated chip U2 is the first voltage signal input terminal; Pin 2 of the logic gate integrated chip U2 is the second voltage signal input terminal; Pin 3 of the logic gate integrated chip U2 is the voltage signal output terminal; Pin 4 of logic gate integrated chip U2 is connected to both pin 5 and pin 7 of logic gate integrated chip U2, and is grounded; Pin 9 of logic gate integrated chip U2 is connected to pins 11, 12, and 13 of logic gate integrated chip U2, and is grounded. Pin 14 of the logic gate integrated chip U2 is connected to one end of capacitor C7 and the 3.3V power supply output terminal; the other end of capacitor C7 is grounded.

8. A universal auxiliary control box for a seismometer according to claim 1, characterized in that, It also includes the outer casing (6); The outer shell (6) is a hollow cuboid structure; The main control circuit (1) is located inside the outer casing (6); The display (4) is located at the upper left corner of the front side wall of the housing (6).

9. A universal auxiliary control box for a seismometer according to claim 8, characterized in that, It also includes a voltmeter (3); The voltmeter (3) is used to measure the directional feedback placement signal voltage of the seismograph; and the voltmeter (3) is located at the upper right corner of the front side wall of the outer casing (6).

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