CN102931934B - Control system for high-power electromagnetic pulse sound source - Google Patents
Control system for high-power electromagnetic pulse sound source Download PDFInfo
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- CN102931934B CN102931934B CN201110228885.7A CN201110228885A CN102931934B CN 102931934 B CN102931934 B CN 102931934B CN 201110228885 A CN201110228885 A CN 201110228885A CN 102931934 B CN102931934 B CN 102931934B
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Abstract
The invention relates to a control system for a high-power electromagnetic pulse sound source. The control system comprises a singlechip, a controller area network (CAN) bus chip, a metal oxide semiconductor field effect transistor (MOSFET) driving chip, a high/low-voltage power driving chip, a capacitor and at least one MOSFET. A CAN bus interface of the chip is connected with a computer through the CAN bus chip, and is used for receiving a control instruction from the computer. Input and output ports of the singlechip are connected with an input port of the high/low-voltage power driving chip. An output port of the high/low-voltage power driving chip is connected with a plurality of relays, and is used for controlling the charging of the capacitor A and an external pulse capacitor. The input and output ports of the singlechip are connected with an input port of the MOSFET driving chip. An output port of the MOSFET driving chip is connected with the gates of the MOSFETs. The drains of the MOSFETs are connected with the capacitor A, and the sources of the MOSFETs are grounded, and are used for controlling the discharging of the capacitor A, and realizing the discharging of the external pulse capacitor through a transformer. The control system is improved to be flexible and safe.
Description
Technical field
The present invention relates to field of transducer, particularly, the present invention relates to a kind of control system for high-power electromagnetic pulse sound source.
Background technology
The principle of thumper is that high voltage energy-storage capacitor is discharged by inductance coil, and the vibrating diaphragm induction that coil covers is generated an electromagnetic field, and vibrating diaphragm magnetic field and coil magnetic field interact and produce repulsive force, excite surrounding medium to form sound wave.Compare with other sound source, thumper has following characteristics: the ping characteristic of (1) this sound source institute radiation, depend primarily on the electroacoustic structure of sound source itself, the waveform of the ping of radiation is very regular, there is splendid wideband spectrum structure, and surge pressure and the width of ping can be changed as requested easily; (2) safe and reliable, signal favorable repeatability.Can test as hydroacoustic physics, the broadband sound source in the field such as the research of geological prospecting and nonlinear acoustics.United States Patent (USP) 3227.996 and Chinese patent 85100714 have all related to this transducer.But the two is not all described its control mode.In big current, high-tension situation, hand switch is utilized to go the discharge and recharge of control capacitance to be dangerous, simultaneously also very inconvenient, and also these control modes can only control single transducer.
Summary of the invention
The object of the invention is to overcome the problems referred to above, providing a kind of control system for high-power electromagnetic pulse sound source.
To achieve these goals, control system for high-power electromagnetic pulse sound source provided by the invention comprises: computer and transformer, and this system also comprises a single-chip microcomputer, CAN chip, MOSFET driving chip, high-low voltage power drives chip, electric capacity and 6 MOSFET;
The CAN interface of described single-chip microcomputer is connected with described computer, for the control command that receiving computer sends by CAN chip;
The input/output port of described single-chip microcomputer connects high-low voltage power drives chip input port, and described high-low voltage power drives chip output mouth connects some relays, for the charging of control capacitance A and external pulse electric capacity;
Described single-chip microcomputer input/output port connects the input port of MOSFET driving chip, the output port of described MOSFET driving chip connects the grid of 6 MOSFET in parallel, the drain electrode of described 6 MOSFET in parallel meets electric capacity A, source ground, for controlling electric capacity A and being realized the electric discharge of external pulse electric capacity by transformer.
According to the control system for high-power electromagnetic pulse sound source of the present invention, described system also comprises power module and power transfer module, it is the voltage of 12V that this power module is used for the voltage transitions of 220V, and it is the voltage of 5V that power transfer module is used for the voltage transitions of 12V.
According to the control system for high-power electromagnetic pulse sound source of the present invention, this system also comprises a protection circuit, this protection circuit is arranged between CAN and computer, for eliminating strong-electromagnetic field that electric discharge produces instantaneously to the destruction of control circuit chips and interference.
According to the control system for high-power electromagnetic pulse sound source of the present invention, described protection circuit comprises three tunnels and is arranged in parallel the Transient Suppression Diode of two series connection at the two ends of CAN, the anti-thunder tube of two series connection and another anti-thunder tube, wherein, two series connection Transient Suppression Diodes indirectly, two series connection anti-thunder tubes indirectly.
In addition, present invention also offers a kind of control method for high-power electromagnetic pulse sound source, the method is realized by above-mentioned control system, and the method comprises the following steps:
1) described single-chip microcomputer passes through CAN (after receiving the instruction of the low-voltage charging that computer sends, the input/output port of single-chip microcomputer is opened, and by the high-low voltage power drives chip controls LVPS be electrically connected with single-chip microcomputer, electric capacity A is charged, after single-chip microcomputer receives the instruction of the low-voltage stopping charging that computer sends, stop charging to electric capacity A;
2) after described single-chip microcomputer receives the instruction of the high-voltage charge that computer sends by CAN, the input/output port of single-chip microcomputer is opened, and the high-low voltage power drives chip control circuit external high voltage power supply paired pulses capacitor charging by being electrically connected with single-chip microcomputer, after single-chip microcomputer receives the instruction of the high voltage stopping charging that computer sends, stop paired pulses capacitor charging;
3) after described single-chip microcomputer receives by CAN the transmission instruction that computer sends, the input/output port of single-chip microcomputer is opened, the MOSFET driving chip be electrically connected with single-chip microcomputer controls 6 MOSFET conductings in parallel, after MOSFET conducting, the electric capacity A be attached thereto is discharged by transformer, and then impels external pulse capacitor discharge at secondary coil generation high voltage.
For achieving the above object, the invention provides a kind of charging and discharging being gone control capacitance by single-chip microcomputer and some peripheral circuits, and utilize the control system that CAN communication and computer contact.Its concrete operation step is as follows:
1) after single-chip microcomputer receives the instruction of the low-voltage charging that computer sends (entering from port A), the too high LVPS driving chip port of single-chip microcomputer is opened, becoming 1 from 0, by exporting driving chip (exporting from port B) control LVPS, electric capacity A being charged.
2) after single-chip microcomputer receives the instruction of the low-voltage stopping charging that computer sends (entering from port A), the too high LVPS driving chip port shutdown of single-chip microcomputer, becoming 0 from 1, stopping charging to electric capacity A by exporting driving chip (exporting from port B) control LVPS.
3) (enter from port A) after single-chip microcomputer receives the instruction of the high-voltage charge that computer sends, the too high LVPS driving chip port of single-chip microcomputer is opened, becoming 1 from 0, controlling control circuit external high voltage power supply paired pulses capacitor charging by exporting driving chip (exporting from port C).
4) after single-chip microcomputer receives the instruction of the high voltage stopping charging that computer sends (entering from port A), the too high LVPS driving chip port shutdown of single-chip microcomputer, becoming 0 from 1, controlling control circuit external high voltage power supply stopping paired pulses capacitor charging by exporting driving chip (exporting from port C).
5) after single-chip microcomputer receives the firing order that computer sends (entering from port A), the I/O port RC0 of single-chip microcomputer opens, 1 is become from 0, open-minded for control MOSFET by exporting driving chip, now, electric capacity A by the electric discharge of external transformer (connecting through port D) primary coil, and then impels external pulse capacitor discharge at secondary coil generation high voltage.
Main points of the present invention are: add at control circuit and external interface place and put strong-electromagnetic field that detonator and Transient Suppression Diode produce instantaneously to prevent from discharging to the destruction of control circuit chips and interference.The protection circuit that the present invention adopts as shown in Figure 2.
Compared to the prior art, control system for electromagnetic pulse sound source transducer of the present invention has following features: provide a kind of control mode for thumper, solve the danger of Non-follow control and dumb sex chromosome mosaicism, and the interference solved in strong-electromagnetic field situation and destruction problem.Design of the present invention adopts PIC18F series monolithic and a series of peripheral chip, achieves and controls flexibly the safety of thumper.
Concrete flexibility exists: the information exchange that PIC single chip microcomputer can realize between people by CAN, and the value of charging voltage that operating personnel can be returned by singlechip feedbsck, carries out real-time monitoring to sound source, and can control charge capacity simultaneously.
Concrete fail safe is embodied in: make separate men from machines by CAN, avoids man-machine direct contact, avoids operating personnel and contacts high-tension danger.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system for high-power electromagnetic pulse sound source of the present invention;
Fig. 2 is the protection circuit figure of control system of the present invention.
Embodiment
Below control system of the present invention and execution mode are described in detail.
Control system for high-power electromagnetic pulse sound source provided by the invention comprises: computer and transformer, and this system also comprises a single-chip microcomputer, CAN chip, MOSFET driving chip, high-low voltage power drives chip, electric capacity and 6 MOSFET;
CANTX with the CANRX port of described single-chip microcomputer is connected with described computer by CAN chip, for the control command that receiving computer sends;
Described single-chip processor i/o port RD0 with RD1 is connected high-low voltage power drives chip I NA and INB port, and high-low voltage power drives chip OUTA is connected some relays with OUTB port, for the charging of control capacitance A and external pulse electric capacity;
The grid that described single-chip processor i/o port RC0 connects MOSFET driving chip INA port, driving chip OUTA is connected 6 MOSFET unit in parallel with OUTB port, the drain electrode of described 6 MOSFET unit in parallel connects electric capacity, source ground, for controlling electric capacity A and being realized the electric discharge of external pulse electric capacity by transformer.
The invention provides a kind of charging and discharging being gone control capacitance by single-chip microcomputer and some peripheral circuits, and utilize the control system that CAN communication and computer contact.Its concrete operation step is as follows:
1) after single-chip microcomputer receives the instruction of the low-voltage charging that computer sends (entering from port A), the too high LVPS driving chip port of single-chip microcomputer is opened, becoming 1 from 0, by exporting driving chip (exporting from port B) control LVPS, electric capacity A being charged.
2) after single-chip microcomputer receives the instruction of the low-voltage stopping charging that computer sends (entering from port A), the too high LVPS driving chip port shutdown of single-chip microcomputer, becoming 0 from 1, stopping charging to electric capacity A by exporting driving chip (exporting from port B) control LVPS.
3) (enter from port A) after single-chip microcomputer receives the instruction of the high-voltage charge that computer sends, the too high LVPS driving chip port of single-chip microcomputer is opened, becoming 1 from 0, controlling control circuit external high voltage power supply paired pulses capacitor charging by exporting driving chip (exporting from port C).
4) after single-chip microcomputer receives the instruction of the high voltage stopping charging that computer sends (entering from port A), the too high LVPS driving chip port shutdown of single-chip microcomputer, becoming 0 from 1, controlling control circuit external high voltage power supply stopping paired pulses capacitor charging by exporting driving chip (exporting from port C).
5) after single-chip microcomputer receives the firing order that computer sends (entering from port A), the I/O port RC0 of single-chip microcomputer opens, 1 is become from 0, open-minded for control MOSFET by exporting driving chip, now, electric capacity A by the electric discharge of external transformer (connecting through port D) primary coil, and then impels external pulse capacitor discharge at secondary coil generation high voltage.
Claims (7)
1. the control system for high-power electromagnetic pulse sound source, this control system comprises computer and transformer is characterized in that, this system also comprises a single-chip microcomputer, CAN chip, MOSFET driving chip, high-low voltage power drives chip, electric capacity and 6 MOSFET;
The CAN interface of described single-chip microcomputer is connected with described computer, for the control command that receiving computer sends by CAN chip;
The input/output port of described single-chip microcomputer connects the input port of high-low voltage power drives chip, and the output port of described high-low voltage power drives chip connects some relays, for the charging of control capacitance A and external pulse electric capacity;
Described single-chip microcomputer input/output port connects the input port of MOSFET driving chip, the output port of described MOSFET driving chip connects the grid of 6 MOSFET in parallel, the drain electrode of described 6 MOSFET in parallel meets electric capacity A, source ground, realizes the electric discharge of external pulse electric capacity for control capacitance A by transformer.
2. the control system for high-power electromagnetic pulse sound source according to claim 1, it is characterized in that, described system also comprises power module and power transfer module, it is the voltage of 12V that this power module is used for the voltage transitions of 220V, it is the voltage of 5V that power transfer module is used for the voltage transitions of 12V, for powering to single-chip microcomputer.
3. the control system for high-power electromagnetic pulse sound source according to claim 1, it is characterized in that, this system also comprises a protection circuit, this protection circuit is arranged between CAN and computer, for eliminating strong-electromagnetic field that electric discharge produces instantaneously to the destruction of control circuit chips and interference.
4. the control system for high-power electromagnetic pulse sound source according to claim 3, it is characterized in that, described protection circuit comprises three tunnels and is arranged in parallel the Transient Suppression Diode of two series connection at the two ends of CAN, the anti-thunder tube of two series connection and another anti-thunder tube
Wherein, two series connection Transient Suppression Diodes indirectly, two series connection anti-thunder tubes indirectly.
5., for a control method for high-power electromagnetic pulse sound source, the control system that the method is made up of a single-chip microcomputer, CAN chip, MOSFET driving chip, high-low voltage power drives chip, electric capacity and 6 MOSFET realizes,
Wherein, the CAN interface of described single-chip microcomputer is connected with computer, for the control command that receiving computer sends by CAN chip;
The input/output port of described single-chip microcomputer connects high-low voltage power drives chip input port, and described high-low voltage power drives chip output mouth connects some relays, for the charging of control capacitance A and external pulse electric capacity;
Described single-chip microcomputer input/output port connects the input port of MOSFET driving chip, the output port of described MOSFET driving chip connects the grid of 6 MOSFET in parallel, the drain electrode of described 6 MOSFET in parallel meets electric capacity A, source ground, for controlling electric capacity A and being realized the electric discharge of external pulse electric capacity by transformer;
It is characterized in that, said method comprising the steps of:
1) after described single-chip microcomputer receives the instruction of the low-voltage charging that computer sends by CAN, the input/output port of single-chip microcomputer is opened, and by the high-low voltage power drives chip controls LVPS be electrically connected with single-chip microcomputer, electric capacity A is charged, after single-chip microcomputer receives the instruction of the low-voltage stopping charging that computer sends, stop charging to electric capacity A;
2) after described single-chip microcomputer receives the instruction of the high-voltage charge that computer sends by CAN, the input/output port of single-chip microcomputer is opened, and the high-low voltage power drives chip control circuit external high voltage power supply paired pulses capacitor charging by being electrically connected with single-chip microcomputer, after single-chip microcomputer receives the instruction of the high voltage stopping charging that computer sends, stop paired pulses capacitor charging;
3) after described single-chip microcomputer receives by CAN the transmission instruction that computer sends, the input/output port of single-chip microcomputer is opened, the MOSFET driving chip control MOSFET conducting be electrically connected with single-chip microcomputer, after MOSFET conducting, the electric capacity A be attached thereto is discharged by transformer, and then impels external pulse capacitor discharge at secondary coil generation high voltage.
6. the control method for high-power electromagnetic pulse sound source according to claim 5, it is characterized in that, described step 1) in establish a protection circuit between CAN and computer, for eliminating strong-electromagnetic field that electric discharge produces instantaneously to the destruction of control circuit chips and interference.
7. the control method for high-power electromagnetic pulse sound source according to claim 6, it is characterized in that, described protection circuit comprises three tunnels and is arranged in parallel the Transient Suppression Diode of two series connection at the two ends of CAN, the anti-thunder tube of two series connection and another anti-thunder tube, wherein, two series connection Transient Suppression Diodes indirectly, two series connection anti-thunder tubes indirectly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228885.7A CN102931934B (en) | 2011-08-10 | 2011-08-10 | Control system for high-power electromagnetic pulse sound source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110228885.7A CN102931934B (en) | 2011-08-10 | 2011-08-10 | Control system for high-power electromagnetic pulse sound source |
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| CN102931934A CN102931934A (en) | 2013-02-13 |
| CN102931934B true CN102931934B (en) | 2015-03-18 |
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| CN201110228885.7A Expired - Fee Related CN102931934B (en) | 2011-08-10 | 2011-08-10 | Control system for high-power electromagnetic pulse sound source |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326712A (en) * | 2005-12-09 | 2008-12-17 | 西荣科技有限公司 | Piezoelectric transducer signal processing circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19520749C1 (en) * | 1995-06-07 | 1996-08-08 | Siemens Ag | Ultrasonic therapeutic appts. with X-ray transparent source of waves |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326712A (en) * | 2005-12-09 | 2008-12-17 | 西荣科技有限公司 | Piezoelectric transducer signal processing circuit |
Non-Patent Citations (1)
| Title |
|---|
| 电磁脉冲声源系统的分析和测量;刘春奎等;《声学学报》;19660331;第3卷(第1期);第1-7页 * |
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