CN201550087U - Automatic multi-pulse sequence generator - Google Patents
Automatic multi-pulse sequence generator Download PDFInfo
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- CN201550087U CN201550087U CN2009201694762U CN200920169476U CN201550087U CN 201550087 U CN201550087 U CN 201550087U CN 2009201694762 U CN2009201694762 U CN 2009201694762U CN 200920169476 U CN200920169476 U CN 200920169476U CN 201550087 U CN201550087 U CN 201550087U
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Abstract
The utility model relates to an automatic multi-pulse sequence generator, which belongs to the technical field of digital signal generation apparatus. The circuit is composed of an input module with a signal filtering, a current amplification and a signal isolation, a micro-control module MCU, an output module with the signal isolation and the current amplification, and a parameter setup and display module; the circuit connection is that the power supply module is connected with a micro-processor, the input module and the output module respectively and supplies the power supply therefore independently; the display module and the micro-control module MCU use the same power supply; the input module, the output module and the parameter setup and display module are connected with the micro-control module MCU respectively; light isolators in the input module and the output module are connected with the micro-control module MCU respectively. Due to the adoption of the ATmega16 micro-controller of high performance, the utility model can generate TTL signals of desired period, number and positive and negative pulse width. An external triggering signal is inputted and a delayed start time is exactly outputted to a spectrograph as a starting signal, thereby meeting requirements in scientific research.
Description
Technical field:
The utility model relates to a kind of automatic multipulse sequence generator, belongs to digital signal generation equipment technical field.
Background technology:
In industrial automation equipment and system, often need the operating state of external signal control system.In the measuring system of some high time resolutions, the measuring system that reaches Millisecond as temporal resolution is to finish instruction in manual mode, and at this time system needs to work automatically under the triggering signal outside.Spectrometer just belongs to this class need carry out the system of unlatching at a high speed by input pulse.The pulse train of opening needs zero-time, umber of pulse, positive pulse width and pulse period can be set.Product in the market can only generate the consecutive pulses ripple, can not be provided with external trigger parameters needed to drive.
The utility model content:
The purpose of this utility model provides a kind of automatic multipulse sequence generator.
It is the actual demand of the spectrometer (hereinafter to be referred as spectrometer) of 5-100ms to input pulse that the utility model is gone up control time resolution at the large-scale science device EAST of country, has designed and Implemented automatic high-resolution multipulse sequence generator.
The requirement of spectrometer pulse sequence design parameter is: between the umber of pulse 0-50000, and sequence delays (startup) time 0-500ms, positive pulsewidth 3ms, cycle 5-500ms.At this demand, it is that core designs that this programme adopts AVR Atmega16L MCU.The initial start time of this pulse generator is at 0-2
16Be provided with in the ms, it is 0-2 that pulse number is provided with scope
16, the resolution of positive and negative pulsewidth is up to 1 μ s, and precision＞1% can satisfy the demand of spectrometer in scientific research fully.
The utility model generates the TTL pulse sequence signal of required cycle and quantity based on the ATmega16L microprocessor, and can show title, state and the time of delay of this sequence signal simultaneously on LCD.Circuit is formed and to be comprised: have that signal filtering and electric current amplify and input module, the microcontroller module MCU of Signal Spacing, have output module, parameter setting and display module that Signal Spacing and electric current amplify; Its syndeton is: input module, output module, parameter setting and display module are connected with microprocessor MCU respectively; Power module is connected with microprocessor, input module, output module respectively and provides independently power supply for it; Display module uses and the identical power supply of microcontroller module MCU; Optical isolator spare is connected with microprocessor MCU respectively in input, the output module, and the other end is connected with peripheral interface circuit.
The utility model is achieved through the following technical solutions:
(1) adopt the ATmega16L microprocessor to realize the multipulse sequence signal generator that parameter can independently be adjusted.
(2) the utility model is amplified by signal filtering and electric current and input module, the microcontroller module MCU of Signal Spacing, has output module, parameter setting and the display module that Signal Spacing and electric current amplify and form, as shown in Figure 1.
(3) adopt the ATmega16L with high precision clock source produce can continuous trigger the TTL multipulse sequence signal that can adjust of cycle, quantity, positive and negative pulsewidth.
(4) (MAIN, INC, DEC can set the state and the time of delay of multipulse sequence signal as shown in Figure 2), consider the adjustment of different increments when parameter is set, and 1,10,100 3 change amount is arranged during the button increase and decrease by three independent buttons.
(5) parameter of She Dinging can show by LCD.
(6) by importing the output that the external trigger signal starts multipulse sequence automatically.
(7) power supply of input module, microcontroller module MCU, output module three parts is separate.
The utility model not only can generate the consecutive pulses ripple, can also be provided with external trigger parameters needed to drive.The utlity model has memory function and power down protection; can write down the desired parameters that be provided with last time; even the parameter setting that power down and shutdown or other abnormal conditions were finished following last time can not lost yet; and have very high noiseproof feature, be particularly suitable for being operated in the strongly disturbing adverse circumstances of electromagnetism.
Description of drawings:
Fig. 1 is the utility model autompulse sequencer block diagram.
Fig. 2 is the utility model circuit structure schematic diagram.
Embodiment:
Further set forth the utility model content below in conjunction with accompanying drawing.
(1) circuit is formed and to be comprised: have that signal filtering and electric current amplify and input module, the microcontroller module MCU of Signal Spacing, have output module, parameter setting and display module that Signal Spacing and electric current amplify; Its syndeton is: input module, output module, parameter setting and display module are connected with microprocessor MCU respectively; Power module is connected with microprocessor, input module, output module respectively and provides independently power supply for it; Display module uses and the identical power supply of microcontroller module MCU; Optical isolator spare is connected with microprocessor MCU respectively in input, the output module, and the other end is connected with peripheral interface circuit, as shown in Figure 2.J
1Be external trigger signal input part, J
2Be the drive signal output.
(2) triggering signal before filtering enters micro-control unit MCU, adopts light every mode signal to be carried out isolation processing as input signal, suppresses system noise effectively, eliminates the interference of grounded circuit, improves the stability of input signal.
(3) signal of MCU output also inserts the voltage follower that is made of operational amplifier through light more earlier and goes to drive spectrometer work after handling.
(4) power supply adopts input circuit module, output circuit module and each self-powered mode of MCU micro-control unit to design, and has promptly designed V
Cc, V
Cc1And V
Vcc2Three groups of direct current supply patterns.Isolated the influence of power supply like this, made system more stable input, output.
(5) pulse train postpones (startup) time T
0, pulse period T and three parameters of umber of pulse N value by the LCD liquid crystal display, change the parameter size by the increase and decrease button, enter next parameter setting by status button after parameter is set finishes, finish the laggard wait state of going into when three parameter settings, wait for the triggering of external signal and open automatically.
(6) can withdraw from wait triggering state by status button and restart to be provided with parameter, MCU begins to send pulse sequence signal after in time responding and handling time-delay when the input outer triggering signal, enters the next one again after transmission finishes and waits for the triggering state.
The function declaration that (7) three parameters are provided with button is as follows.
" MAIN " button: the state button, change is provided with parameter type, can withdraw from the transmit status and the parameter that starts anew again to be provided with when sending pulse by force.The actual product red color keys indicates " SET " printed words.
" INC " and " DEC " button: numerical value plus-minus button, the parameter state that enters setting can change the parameter size, the button asynchronism(-nization), its corresponding variable quantity difference, of short duration (less than 0.4s) clicks variable quantity is 1, long (less than 1s) is 10 by variable quantity, and overlength (greater than 1s) is 100 by variable quantity.Actual product indicates " INC " and " DEC " printed words respectively with two green color key.
(8) this equipment has the electrification reset function, so reset key is located at device interior, use when being mainly used in system extension upgrading debugging.
Claims (5)
1. automatic multipulse sequence generator is characterized in that: circuit is formed and is comprised having signal filtering and electric current amplifies and input module, the microcontroller module MCU of Signal Spacing, have output module, parameter setting and the display module that Signal Spacing and electric current amplify and form; Its syndeton is: input module, output module, parameter setting and display module are connected with microprocessor MCU respectively; Power module is connected with microprocessor, input module, output module respectively and for it provides independently power supply, display module uses and the identical power supply of microcontroller module MCU; Optical isolator spare is connected with microprocessor MCU respectively in input, the output module, and the other end is connected with peripheral interface circuit.
2. pulse-series generator according to claim 1, it is characterized in that: the triggering signal in the input module as input signal before filtering enters micro-control unit MCU, adopt light signal to be carried out isolation processing every mode, suppress system noise effectively, eliminate the interference of grounded circuit, improve the stability of input signal.
3. pulse-series generator according to claim 1 is characterized in that: the signal of MCU input inserts the voltage follower that is made of operational amplifier through light earlier again in the output module after handling.
4. pulse-series generator according to claim 1 is characterized in that: the power supply of input module, microcontroller module MCU, output module three parts is separate.
5. pulse-series generator according to claim 1; it is characterized in that: microcontroller module MCU has memory and power-down protection; can write down the desired parameters that was provided with last time, even the parameter setting that power down and shutdown or other abnormal conditions were finished following last time can not lost yet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201694762U CN201550087U (en) | 2009-10-22 | 2009-10-22 | Automatic multi-pulse sequence generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201694762U CN201550087U (en) | 2009-10-22 | 2009-10-22 | Automatic multi-pulse sequence generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550087U true CN201550087U (en) | 2010-08-11 |
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ID=42605272
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201694762U Expired - Fee Related CN201550087U (en) | 2009-10-22 | 2009-10-22 | Automatic multi-pulse sequence generator |
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| CN (1) | CN201550087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393650A (en) * | 2011-07-29 | 2012-03-28 | 中国人民解放军后勤工程学院 | Device and method for intelligent control of electrical pulse water prevention |
| CN103092257A (en) * | 2012-12-29 | 2013-05-08 | 中国船舶重工集团公司第七一○研究所 | Self-adaptive trigger synchronization control device |
-
2009
- 2009-10-22 CN CN2009201694762U patent/CN201550087U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393650A (en) * | 2011-07-29 | 2012-03-28 | 中国人民解放军后勤工程学院 | Device and method for intelligent control of electrical pulse water prevention |
| CN102393650B (en) * | 2011-07-29 | 2013-06-05 | 中国人民解放军后勤工程学院 | Device and method for intelligent control of electrical pulse water prevention |
| CN103092257A (en) * | 2012-12-29 | 2013-05-08 | 中国船舶重工集团公司第七一○研究所 | Self-adaptive trigger synchronization control device |
| CN103092257B (en) * | 2012-12-29 | 2015-06-24 | 中国船舶重工集团公司第七一○研究所 | Self-adaptive trigger synchronization control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111022 |