Remote correction and leveling of seismometer azimuth and anti-magnetic constant temperature protection system

Abstract

The seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system, the problem to be solved by the present invention is to remotely adjust the seismometer and keep the seismometer working in a stable environment. The technical solution of the present invention is: anti-magnetic constant temperature shell, the anti-magnetic constant temperature shell includes a thermal insulation layer fixed on the inner wall of the anti-magnetic constant temperature shell, a semiconductor heating and cooling plate is arranged in the thermal insulation layer, a waterproof sealing layer is arranged on the inner wall of the thermal insulation layer, a heat dissipation grille is arranged on the outer wall of the thermal insulation layer, and the anti-magnetic constant temperature shell is provided with heat dissipation holes matched with the heat dissipation grille; a leveling system is arranged inside the waterproof sealing layer; the leveling system includes a waterproof liner and a leveling plate, and the leveling plate is fixed at the opening of the waterproof liner. The advantage of the present invention is that the earthquake precursor instrument can be leveled while effectively preventing electromagnetic interference, and the earthquake precursor instrument can be kept working at a stable ambient temperature.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake remote monitoring stations, and in particular to a seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system. Background Art

[0002] Since the locations of earthquake monitoring points vary, they are often located in places that are difficult for humans to reach, such as mountains and rivers. Therefore, earthquake monitoring points need to be remotely controlled. During the remote control process, they are often disturbed by the external environment and the instrument itself. In order to ensure the stability and accuracy of the instruments in the base station, it is necessary to adjust the environmental conditions in the base station according to the changes in the external environment so that the instruments can work in a stable state.

[0003] The problem to be solved by the present invention is to remotely adjust the seismometer and keep the seismometer working in a stable environment. Summary of the invention

[0004] The purpose of the invention is to provide a seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system.

[0005] The technical solution of the present invention is that it includes: an anti-magnetic constant temperature shell, the anti-magnetic constant temperature shell includes a thermal insulation layer fixed on the inner wall of the anti-magnetic constant temperature shell, a semiconductor heating and cooling plate is arranged in the thermal insulation layer, a waterproof sealing layer is arranged on the inner wall of the thermal insulation layer, a heat dissipation grille is arranged on the outer wall of the thermal insulation layer, and a heat dissipation hole matching the heat dissipation grille is arranged on the anti-magnetic constant temperature shell; a leveling system is arranged inside the waterproof sealing layer; the leveling system includes a waterproof liner and a leveling plate, and the leveling plate is fixed at the opening of the waterproof liner. The leveling system includes a leveling plate and three stepping motors, and the leveling plate is arranged at the opening of the waterproof liner and at the bottom of the system.

[0006] The semiconductor heating and cooling sheets are arranged in a ring on the outer wall of the waterproof sealing layer and on the top of the waterproof sealing layer.

[0007] The waterproof sealing layer is a hollow double-layer structure, and the cavity of the waterproof sealing layer is filled with a heat-conducting medium.

[0008] The integrated structure of the leveling disk is composed of a base with an annular fixing seat, a thermal insulation layer, a magnetic shielding layer I, a separation layer, and a magnetic shielding layer II from bottom to top; three stepping motors are evenly distributed on the circumference of the base of the leveling disk, and columnar leveling screws are arranged on the stepping motors.

[0009] The stepper motor is a push rod motor.

[0010] A thermometer is inserted in the waterproof sealing layer, and the thermometer passes through the thermal insulation layer and is connected to the temperature sensor.

[0011] The invention has the advantages of being able to realize the leveling work of the remote base station and to put the earthquake precursor instrument in a stable constant temperature working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 yes Figure 1 A partial enlarged view of

[0014] Figure 3 It is a schematic diagram of the structure of the leveling plate of the present invention;

[0015] Figure 4 It is a working principle diagram of the present invention;

[0016] Figure 5 It is an algorithm demonstration diagram of the present invention;

[0017] Figure 6 It is a dual-path backup AC / DC conversion circuit diagram of the present invention from AC 220V to DC 12V;

[0018] Figure 7 It is the circuit diagram of the DC 12V to dual battery charging and discharging module;

[0019] Figure 8 It is a multi-channel mutual backup DC 12V (9-18V) power supply to +12V voltage stabilization circuit diagram;

[0020] Fig. 9 It is a schematic diagram of the instrument structure.

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] 1. As indicated by the label: Relay (automatically switches to select the main and standby 220V AC power supply)

[0023] 2. DC 12V switching power supply 1

[0024] 3. DC 12V backup power supply 2

[0025] 4. Relay group (automatically switches to select the main and standby DC 12V switching power supply)

[0026] 5. Protection diode (switching power supply output protection)

[0027] 6. Filter capacitor (switching power supply output 12V filtering)

[0028] 7. Relay group (MCU controls the selection of charging power supply for battery 1 and battery 2)

[0029] 8. 12V battery 1

[0030] 9. 12V battery 2

[0031] 10. Protection diode (battery output protection)

[0032] 11. Filter capacitor (battery output 12V filter)

[0033] 12. Relay group (MCU controls the selection of working DC-DC power supply module)

[0034] 13. 12V to +12V power module I

[0035] 14. 12V to +12V backup battery module II

[0036] 15. 12V to +12V power module III

[0037] 16. 12V to +12V backup power module IV

[0038] 17. Relay group (MCU controls the selection of working DC-DC power supply module)

[0039] 18. Single chip microcomputer circuit board. DETAILED DESCRIPTION

[0040] Example 1

[0041] See also Figures 1 to 4 , the anti-magnetic constant temperature shell comprises a thermal insulation layer fixed on the inner wall of the anti-magnetic constant temperature shell, a semiconductor heating and cooling plate is arranged in the thermal insulation layer, a waterproof sealing layer is arranged on the inner wall of the thermal insulation layer, a heat dissipation grille is arranged on the outer wall of the thermal insulation layer, and heat dissipation holes matching with the heat dissipation grille are arranged on the anti-magnetic constant temperature shell; a leveling system is arranged inside the waterproof sealing layer; the leveling system comprises a waterproof liner and a leveling plate, and the leveling plate is fixed at the opening of the waterproof liner.

[0042] The semiconductor heating and cooling sheets are arranged in a ring on the outer wall of the waterproof sealing layer and on the top of the waterproof sealing layer.

[0043] The waterproof sealing layer is a hollow double-layer structure, and the cavity of the waterproof sealing layer is filled with a heat-conducting medium.

[0044] The integrated structure of the leveling disk is composed of a base with an annular fixing seat, a thermal insulation layer, a magnetic shielding layer I, a separation layer, and a magnetic shielding layer II from bottom to top; three stepping motors are evenly distributed on the circumference of the base of the leveling disk, and columnar leveling screws are arranged on the stepping motors.

[0045] The stepper motor is a push rod motor.

[0046] A temperature sensor is inserted in the waterproof sealing layer, and the temperature sensor passes through the thermal insulation layer and is connected to the single-chip computer circuit board.

[0047] The leveling principle of the present invention is as follows: Figure 5 A, B, and C are the supporting points of the seismometer balance system, among which A and C are the horizontal adjustment points, B is the height adjustment point, and DABC is an equilateral triangle. Draw the circumscribed circle of DABC, and draw the vertical line CO through point C to intersect AB at O. If the radius of the circumscribed circle of DABC is r, then AB=AC=BC= ,CO= , assuming that the position of the support point of the system is affected and becomes A', B', C', and the support surface is translated to make point A coincide with A'. The dual-axis inclination sensor can measure the horizontal inclination angles α and β between the X' axis and the horizontal X axis, and between the Y axis and the horizontal Y axis, respectively. That is, the original balance system changes from the solid line graphic position to the dotted line graphic position. The simple method is to detect the east-west horizontal inclination angle as α. Since the inclination angle is extremely small in reality, it is basically less than 5° (at this time, the inclination angle α»tanα»sinα, and it can also be considered that O'O, BB, and CC are all perpendicular to the plane where DABC is located). Assuming that the radius of the circle in the above figure is r, then AB=AB'= , the vertical distance from B' to B , adjust B' to B through the stepper motor at point B, at this time O' coincides with O, and then detect the north-south horizontal inclination angle β'. At this time, when adjusting the stepper motor at point C, the bottom plane of the seismometer is rotated along the AB axis. And OC = , the vertical distance from C' to C is .

[0048] Adjust the two stepper motors at points B and C at the same time, and adjust the balance points B' and C' to the positions of B and C at once to restore the system to a horizontal level. Assuming that the radius of the circle in the above figure is r, draw a line segment O' C'' through point O' parallel to OC and intersect CC' at C'', then O' C''=OC= , C''C=O'O. The dual-axis inclination sensor can measure the horizontal inclination angles of the X' axis and the horizontal X axis, and the Y axis and the horizontal Y axis respectively, α and β, then the distance from B' to B , the distance from C' to C When the angular velocity ratio of the stepper motor at point B and point C is dB:dC (i.e. : ), the two stepper motors at points B and C can level the bottom of the seismometer together. That is, the stepper motor at point B adjusts the height of the leveling plate, and the two stepper motors at points A and C adjust the level of the leveling plate.

[0049] The principle of the power shielding control circuit of the present invention is as follows: Figures 6 to 9 :

[0050] AC 220V to DC 12V AC / DC conversion module, DC 12V to dual battery charge and discharge module, DC 12V power supply to +12V conversion modules I and II; AC 220V to DC 12V AC / DC conversion module is connected with DC 12V to dual battery charge and discharge module, and DC 12V to dual battery charge and discharge module is connected with DC 12V power supply to +12V conversion modules III and IV.

[0051] The AC 220V to DC 12V AC / DC conversion module is provided with two AC power input interfaces, one is the main AC power input interface, and the other is the backup AC power input interface; the main AC power is connected to the coil and normally open pin of the relay, and the backup AC power is connected to the normally closed pin of the relay; the AC power entering the device is respectively connected to the main DC switching power supply, the backup DC switching power supply input terminal, the normally closed pin of the relay, and the output of the relay to the coil pin of the relay and the normally open pin of the relay of the control output circuit.

[0052] The DC 12V to dual-battery charging and discharging module is provided with two 12V batteries, namely Battery I and Battery II. Contact relays are respectively provided between the two batteries and the DC 12V power supply. Both batteries are connected to the analog-to-digital conversion device, the analog-to-digital conversion device is connected to the single-chip microcomputer, and the control circuit of the single-chip microcomputer is connected to the relay to form a closed loop.

[0053] The DC 12V power supply to +12V conversion module includes 12V to +12V power supply modules I, II and 12V to +12V power supply modules III, IV; the 12V to +12V power supply modules I, II and 12V to +12V power supply modules III, IV are connected in parallel and are all connected to the internal power supply board of the BHC-336 calibrator and the multi-channel analog-to-digital conversion chip, the multi-channel analog-to-digital conversion chip is connected to the single-chip microcomputer, the single-chip microcomputer is connected to the voltage monitoring data stored in the non-volatile data storage chip and the DC 12V power supply to +12V and the relay of the +12V conversion module.

Claims

1. A seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system, characterized in that: include: The anti-magnetic constant temperature shell comprises a heat preservation layer fixed on the inner wall of the anti-magnetic constant temperature shell, a semiconductor heating and cooling sheet is arranged in the heat preservation layer, a waterproof sealing layer is arranged on the inner wall of the heat preservation layer, a heat dissipation grille is arranged on the outer wall of the heat preservation layer, and heat dissipation holes matching with the heat dissipation grille are arranged on the anti-magnetic constant temperature shell; a leveling system is arranged inside the waterproof sealing layer; the leveling system comprises a waterproof liner and a leveling plate, and the leveling plate is fixed at the opening of the waterproof liner; the semiconductor heating and cooling sheet is arranged on the outer wall of the waterproof sealing layer and on the top of the waterproof sealing layer; The waterproof sealing layer is a hollow double-layer structure, and the cavity of the waterproof sealing layer is filled with a heat-conducting medium; The integrated structure of the leveling disk is composed of a base with an annular fixing seat, a thermal insulation layer, a magnetic shielding layer I, a separation layer, and a magnetic shielding layer II from bottom to top; three stepping motors are evenly arranged on the circumference of the base of the leveling disk, and a columnar leveling screw is arranged on the stepping motor; The leveling principle of the leveling system is as follows: Set A, B, and C as the support points of the seismometer leveling system, where A and C are the horizontal adjustment points, B is the height adjustment point, and △ABC is an equilateral triangle, and draw a circumscribed circle of △ABC, and draw a perpendicular line CO through point C that intersects AB at O; if the radius of the circumscribed circle of △ABC is r, then Assume that the positions of the affected support points of the system are changed to A', B', and C', and the support surface is translated so that point A coincides with point A'. The horizontal inclination angles of the X' axis and the horizontal X axis, and the Y' axis and the horizontal Y axis are measured by the dual-axis inclination sensor, and the inclination angles are α and β respectively; the east-west horizontal inclination angle is α, then The vertical distance from B' to B The stepper motor at point B adjusts B' to B, at which point O' coincides with O, and then detects the north-south horizontal inclination angle β'. At this time, when the stepper motor at point C is adjusted, the bottom plane of the seismometer is rotated along the AB axis, and The vertical distance from C' to C is Adjust the stepper motors at points B and C at the same time, and adjust the balance points B' and C' to the positions of B and C at one time to restore the system to a horizontal level; draw a line segment O'C" through point O' parallel to OC and intersecting CC' at C", then C”C=O'O; the horizontal inclination angles of X' axis and horizontal X axis, Y' axis and horizontal Y axis are measured by the dual-axis inclination sensor, and they are α and β respectively. Then the distance from B' to B is Distance from C' to C When the angular velocity ratio of the stepper motor at point B and point C is d B :d C When the leveling plate is adjusted, the two stepper motors at points B and C level the bottom surface of the seismometer together; that is, the stepper motor at point B adjusts the height of the leveling plate, and the two stepper motors at points A and C adjust the level of the leveling plate; The power shielding control circuit includes: an AC 220V to DC 12V AC / DC conversion module, a DC 12V to dual battery charging and discharging module, and a DC 12V power supply to +12V and +12V conversion module; the AC 220V to DC 12V AC / DC conversion module is connected to the DC 12V to dual battery charging and discharging module, and the DC 12V to dual battery charging and discharging module is connected to the DC 12V power supply to +12V and +12V conversion module; the AC 220V to DC 12V AC / DC conversion module is provided with two AC power input interfaces, one is the main AC power input interface, and the other is the backup AC power input interface; the main AC power supply is connected to the AC 220V to DC 12V AC / DC conversion module. To the coil and normally open pin of the relay, and the backup AC power supply is connected to the normally closed pin of the relay; the AC power entering the device is respectively connected to the main DC switching power supply, the input end of the backup DC switching power supply, the normally closed pin of the relay and the output of the relay to the coil pin of the control output circuit relay and the normally open pin of the relay; the DC 12V to dual battery charging and discharging module is provided with two 12V batteries, namely battery I and battery II, and contact relays are respectively arranged between the two batteries and the DC 12V power supply, and the two batteries are connected to the analog-to-digital conversion device, the analog-to-digital conversion device is connected to the single-chip microcomputer, and the control circuit of the single-chip microcomputer is connected to the relay to form a closed loop.

2. The seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system according to claim 1 is characterized by: The stepper motor is a push rod motor.

3. The seismometer azimuth remote correction and leveling and anti-magnetic constant temperature protection system according to claim 1 is characterized by: A thermometer is inserted in the waterproof sealing layer, and the thermometer passes through the thermal insulation layer and is connected to the temperature sensor.

Images