Seismometer remote leveling and constant temperature protection system

Abstract

The invention discloses a seismometer remote leveling and constant-temperature protection system, and relates to the technical field of earthquake remote monitoring stations, the seismometer remote leveling and constant-temperature protection system comprises an antimagnetic constant-temperature shell, the antimagnetic constant-temperature shell comprises a thermal insulation layer fixed on the inner wall of the antimagnetic constant-temperature shell, a semiconductor heating and cooling sheet is arranged in the thermal insulation layer, and a waterproof sealing layer is arranged on the inner wall of the thermal insulation layer; a heat dissipation grid is arranged on the outer wall of the heat preservation layer, and heat dissipation holes matched with the heat dissipation grid are formed in the antimagnetic constant-temperature shell; a leveling system is arranged in the waterproof sealing layer; the leveling system comprises a waterproof inner container and a leveling plate, and the leveling plate is fixed to an opening of the waterproof inner container. According to the invention, the earthquake precursor instrument can be leveled under the condition of effectively preventing electromagnetic interference, and the earthquake precursor instrument is enabled to be in a stable constant-temperature working state.

Description

[0001] This application is a divisional application. The application number of the original application is 201910143106.X, the application date is February 26, 2019, and the invention title is "Seismometer Azimuth Remote Calibration, Leveling and Anti-Magnetic Constant Temperature Protection System". Technical Field

[0002] The present invention relates to the technical field of seismic remote monitoring stations, and particularly relates to a seismometer remote leveling and constant temperature protection system. Background Art

[0003] Since the positions of seismic monitoring points vary, they often appear in places where humans are not easily accessible, such as mountains and rivers. Therefore, seismic monitoring points need to be remotely controlled. During the remote control process, they are often interfered by the external environment and also by the instrument itself. To ensure the stability and accuracy of the instruments and meters 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 and meters can work in a stable state.

[0004] 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

[0005] The purpose of the present invention is to provide a seismometer remote leveling and constant temperature protection system.

[0006] The technical solution of the present invention is that it includes: an anti-magnetic constant temperature housing, the anti-magnetic constant temperature housing includes a heat preservation layer fixed on the inner wall of the anti-magnetic constant temperature housing, 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 a heat dissipation hole is arranged on the anti-magnetic constant temperature housing and is matched with the heat dissipation grille; a leveling system is arranged inside the waterproof sealing layer; the leveling system includes a waterproof inner container and a leveling disk, and the leveling disk is fixed at the opening of the waterproof inner container. The leveling system includes a leveling disk and three stepping motors, and the leveling disk is at the opening of the waterproof inner container and is placed at the bottom of the system.

[0007] The semiconductor heating and cooling sheets are distributed around the outer wall of the waterproof sealing layer and on the top of the waterproof sealing layer.

[0008] The waterproof sealing layer is a hollow double-layer structure, and a heat conduction medium is injected into the cavity of the waterproof sealing layer.

[0009] The integrated structure of the leveling disk from bottom to top is successively a base with an annular fixing seat, a heat preservation layer, a magnetic shielding layer I, a separation layer, and a magnetic shielding layer II; 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.

[0010] The stepping motor is a push rod motor.

[0011] A thermometer is inserted into the waterproof seal layer, and the thermometer passes through the thermal insulation layer and is connected to the temperature sensor.

[0012] The advantages of the present invention are: it can achieve the leveling work of the remote base station and keep the seismic precursor instrument in a stable constant temperature working state. Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of the present invention;

[0014] Figure 2 is Figure 1 the partial enlarged view of

[0015] Figure 3 is the structural schematic diagram of the leveling disk of the present invention;

[0016] Figure 4 is the working principle diagram of the present invention;

[0017] Figure 5 is the algorithm demonstration diagram of the present invention;

[0018] Figure 6 is the AC 220V to DC 12V dual-channel backup AC-DC conversion circuit diagram in the present invention;

[0019] Figure 7 is the DC 12V to dual-battery charge and discharge module circuit diagram;

[0020] Figure 8 is the multi-channel mutual backup DC 12V (9-18V) power supply to +12V voltage stabilization circuit diagram;

[0021] Figure 9 is the structural schematic diagram of the instrument.

[0022] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] 1. As indicated by the label: relay (automatically switches to select the main and backup 220V AC power supplies)

[0024] 2. DC 12V switching power supply 1

[0025] 3. DC 12V backup power supply 2

[0026] 4. Relay group (automatically switches to select the main and backup DC 12V switching power supplies)

[0027] 5. Protection diode (protection for the switching power supply output)

[0028] 6. Filter capacitor (12V filtering for the switching power supply output)

[0029] 7. Relay group (single-chip microcomputer controls the selection of battery 1 and battery 2 for charging and power supply)

[0030] 8. 12V Battery 1

[0031] 9. 12V Battery 2

[0032] 10. Protection diode (battery output protection)

[0033] 11. Filter capacitor (12V filtering of battery output)

[0034] 12. Relay group (single-chip microcomputer controls the selection of working DC-DC DC power module)

[0035] 13. 12V to +12V Power Module I

[0036] 14. 12V to +12V Spare Battery Module II

[0037] 15. 12V to +12V Power Module III

[0038] 16. 12V to +12V Spare Power Module IV

[0039] 17. Relay group (single-chip microcomputer controls the selection of working DC-DC DC power module)

[0040] 18. Single-chip microcomputer circuit board. Detailed implementation mode

[0041] Embodiment 1

[0042] See Figures 1 to 4 , the anti-magnetic constant temperature housing, the anti-magnetic constant temperature housing includes a heat preservation layer fixed on the inner wall of the anti-magnetic constant temperature housing, 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 the heat dissipation grille are arranged on the anti-magnetic constant temperature housing; a leveling system is arranged inside the waterproof sealing layer; the leveling system includes a waterproof inner container and a leveling plate, and the leveling plate is fixed at the opening of the waterproof inner container.

[0043] The semiconductor heating and cooling sheets are distributed around the outer wall of the waterproof sealing layer and on the top of the waterproof sealing layer.

[0044] The waterproof sealing layer is a hollow double-layer structure, and a heat-conducting medium is injected into the cavity of the waterproof sealing layer.

[0045] The integral structure of the leveling plate is successively from bottom to top a base with a ring-shaped fixing seat, a heat preservation layer, a magnetic shielding layer I, a separation layer, and a magnetic shielding layer II; three stepping motors are evenly distributed on the circumference of the base of the leveling plate, and columnar leveling screws are arranged on the stepping motors.

[0046] The stepper motor is a push rod motor.

[0047] A temperature sensor is inserted into the waterproof and sealing layer, and the temperature sensor passes through the heat preservation layer and is connected to the single-chip microcomputer circuit board.

[0048] The leveling principle of the present invention is as follows: As Figure 5 shown, A, B, and C are the support points of the seismometer balance system. Among them, point A and point C are the horizontal adjustment points, point B is the height adjustment point, and ΔABC is an equilateral triangle. And draw the circumscribed circle of ΔABC, and draw a vertical line CO from point C to AB and intersect AB at O. If the radius of the circumscribed circle of ΔABC is r, then Suppose the system is affected and the positions of the support points become A', B', and C'. Translate the support surface so that point A coincides with A'. Through the biaxial inclination sensor, the horizontal inclinations of the X' axis and the horizontal X axis, and the Y axis and the horizontal Y axis can be measured as α and β 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 that the east-west horizontal inclination is α. Since the inclination angle is extremely small in reality, 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 ΔABC is located). Suppose the radius of the circle in the above figure is r, then 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. Then detect the north-south horizontal inclination β'. At this time, when adjusting the stepper motor at point C, the bottom plane of the seismometer rotates and adjusts along the AB axis. Also The vertical distance from C' to C is

[0049] At the same time, adjust the two stepper motors at points B and C, and adjust the balance points B' and C' to the positions of B and C at one time to make the system return to horizontal. Suppose the radius of the circle in the above figure is r, draw a line segment O'C” parallel to OC through point O' and intersect CC' at C”. Then C”C = O'O. Through the biaxial inclination sensor, the horizontal inclinations of the X' axis and the horizontal X axis, and the Y axis and the horizontal Y axis can be measured as α and β respectively. Then the distance from B' to B The distance from C' to C When the angular velocity ratio of the stepper motors at points B and C is dB:dC (that is ), the two stepper motors at points B and C can 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 horizontal of the leveling plate.

[0050] The principle of the power supply shielding control circuit of the present invention is as follows. See Figures 6 to 9 :

[0051] 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; the AC 220V to DC 12V AC-DC conversion module is connected to the DC 12V to dual-battery charge and discharge module, and the DC 12V to dual-battery charge and discharge module is connected to the DC 12V power supply to +12V conversion modules III and IV.

[0052] 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 standby AC power input interface; the main AC power is connected to the coil and normally open pin of the relay, and the standby AC power is connected to the normally closed pin of the relay; the alternating current entering the device is respectively connected to the main DC switch power supply, the input end of the standby DC switch 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.

[0053] The DC 12V to dual-battery charge and discharge module is provided with two 12V batteries, namely battery I and battery II. Contact relays are respectively arranged 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.

[0054] The DC 12V power supply to +12V conversion module includes 12V to +12V power modules I and II and 12V to +12V power modules III and IV; the 12V to +12V power modules I and II and the 12V to +12V power modules III and IV are connected in parallel and are both 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 relay of the DC 12V power supply to +12V and +12V conversion module.

Claims

1. A remote leveling and constant temperature protection system for seismographs, characterized in that, Comprising: An anti-magnetic constant temperature housing, which includes a heat insulation layer fixed on the inner wall of the anti-magnetic constant temperature housing. A semiconductor heating and cooling sheet is arranged inside the heat insulation layer. A waterproof sealing layer is arranged on the inner wall of the heat insulation layer. A heat dissipation grille is arranged on the outer wall of the heat insulation layer. Heat dissipation holes are arranged on the anti-magnetic constant temperature housing and are matched with the heat dissipation grille; A leveling system is arranged inside the waterproof sealing layer; The leveling system includes a waterproof inner container and a leveling plate, and the leveling plate is fixed at the opening of the waterproof inner container; The leveling principle of the leveling system is as follows: Set A, B, and C as the support points of the seismometer leveling system. Among them, point A and point C are horizontal adjustment points, point B is the height adjustment point, and ΔABC is an equilateral triangle. Draw the circumscribed circle of ΔABC, and draw a vertical line CO from point C to AB, intersecting AB at O. If the radius of the circumscribed circle of ΔABC is r, then Suppose the system is affected and the positions of the support points become A', B', and C'. Translate the support surface so that point A coincides with A'. Measure the horizontal inclinations of the X'-axis and the horizontal X-axis, and the Y'-axis and the horizontal Y-axis, which are α and β respectively, through the biaxial inclination sensor. Detect that the east-west horizontal inclination is α, then 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. Then detect the north-south horizontal inclination β'. When adjusting the stepper motor at point C, the bottom plane of the seismometer rotates along the AB axis for adjustment. Also The vertical distance from C' to C is Adjust the two stepper motors at point B and point C simultaneously to adjust the balance points B' and C' to the positions of B and C at one time to make the system level again. Draw a line segment O'C” parallel to OC through point O', intersecting CC' at C”. Then C”C = O'O; Measure the horizontal inclinations of the X'-axis and the horizontal X-axis, and the Y'-axis and the horizontal Y-axis, which are α and β respectively, through the biaxial inclination sensor. Then the distance from B' to B The distance from C' to C When the angular velocity ratio of the stepper motors at point B and point C is d B :d C At this time, the two stepper motors at point B and point 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 point A and point C adjust the horizontal of the leveling plate.

2. The remote leveling and constant temperature protection system for a seismometer according to claim 1, characterized in that The semiconductor heating and cooling sheets are distributed around the outer wall and the top of the waterproof sealing layer.

3. The remote leveling and constant temperature protection system for a seismometer according to claim 1, characterized in that, The waterproof sealing layer is a hollow double-layer structure, and a heat-conducting medium is injected into the cavity of the waterproof sealing layer.

4. The remote leveling and constant temperature protection system for a seismometer according to claim 1, characterized in that The integral structure of the leveling plate is successively from bottom to top: a base with an annular fixing seat, a heat insulation layer, a magnetic shielding layer I, a partition layer, and a magnetic shielding layer II; Three stepping motors are evenly distributed in a circle on the base of the leveling plate, and columnar leveling screws are arranged on the stepping motors.

5. A seismometer remote leveling and constant temperature protection system according to claim 4, characterized in that, The stepping motor is a push rod motor.

6. The remote leveling and constant temperature protection system for a seismometer according to claim 1, characterized in that, A thermometer is inserted into the waterproof sealing layer, and the thermometer passes through the heat insulation layer and is connected to a temperature sensor.

7. A seismometer remote leveling and constant temperature protection system according to any one of claims 1-6, characterized in that, It also includes a power supply shielding control circuit, which includes an AC 220V to DC 12V AC-DC conversion module, a DC 12V to dual-battery charge and discharge module, and DC 12V power supply to +12V conversion modules I and II; The AC 220V to DC 12V AC-DC conversion module is connected to the DC 12V to dual-battery charge and discharge module, and the DC 12V to dual-battery charge and discharge module is connected to the DC 12V power supply to +12V conversion modules III and IV.

8. The remote leveling and constant temperature protection system for a seismometer according to claim 7, characterized in that, 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 standby AC power input interface; The main AC power is connected to the coil and the normally open pin of the relay, and the standby AC power is connected to the normally closed pin of the relay; The alternating current entering the device is respectively connected to the main DC switch power supply, the standby DC switch power supply input terminal, the normally closed pin of the relay, and the output of the relay to the coil pin and the normally open pin of the control output circuit relay.

9. The remote leveling and constant temperature protection system for a seismometer according to claim 7, characterized in that, The DC 12V to dual-battery charge and discharge module is provided with two 12V batteries, namely battery I and battery II. Contact relays are respectively arranged between the two batteries and the DC 12V power supply. Both batteries are connected to an analog-to-digital conversion device, the analog-to-digital conversion device is connected to a single-chip microcomputer, and the control circuit of the single-chip microcomputer is connected to the relay to form a closed loop.

10. The remote leveling and constant temperature protection system for a seismometer according to claim 7, characterized in that, The DC 12V power supply to +12V conversion module includes 12V to +12V power modules I and II and 12V to +12V power modules III and IV; The 12V to +12V power modules I and II and the 12V to +12V power modules III and IV are connected in parallel and are both connected to the internal power supply board of the BHC-336 calibrator and a multi-channel analog-to-digital conversion chip. The multi-channel analog-to-digital conversion chip is connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the voltage monitoring data stored in the non-volatile data storage chip and the relay of the DC 12V power supply to +12V and +12V conversion module.

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