CN111476985A - High-speed high-frequency shock wave overpressure data acquisition device and acquisition method - Google Patents
High-speed high-frequency shock wave overpressure data acquisition device and acquisition method Download PDFInfo
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- CN111476985A CN111476985A CN201910065953.9A CN201910065953A CN111476985A CN 111476985 A CN111476985 A CN 111476985A CN 201910065953 A CN201910065953 A CN 201910065953A CN 111476985 A CN111476985 A CN 111476985A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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Abstract
The invention discloses a high-speed high-frequency shock wave overpressure data acquisition device, which comprises an acquisition system and an acquisition module, wherein the acquisition module comprises a signal acquisition module, an optical trigger module, a remote transmission module, a data storage module and a control module, the signal acquisition module is connected with the control module through an FSMC interface, the data storage module is connected with the control module through an SDIO interface, the remote transmission module comprises an instruction transmission part and a data transmission part, the control module consists of two STMs 32 and is communicated with each other through a USART, the optical trigger module is used for receiving optical signals generated by explosion and triggering the system, the signal acquisition module is used for acquiring shock wave signals generated by explosion, the remote transmission module is used for receiving instructions transmitted by a computer and transmitting data to the computer, the data storage module is used for storing the acquired data, the control module is used for controlling the acquisition of signals and the basic operation of the system.
Description
Technical Field
The invention relates to the technical field of data acquisition, in particular to a high-speed high-frequency shock wave overpressure data acquisition device and an acquisition method.
Background
In production life such as mining, tunnel construction and the like and military operations, the method for realizing the damage effect by using explosive explosion is a common means. Ammunition and the like form shock waves after being exploded in the air and spread to the surroundings, and the explosion shock waves are reflected when meeting objects, so that the objects are damaged. The shock wave can damage various military targets such as personnel, facilities and equipment and civil buildings, has a large action range and strong destructive power, and the destructive degree is determined by the power of the shock wave, so that the data of the shock wave is an important index for judging the destructive effect of explosion. The shock wave overpressure signal has high peak value and short duration of positive pressure, and has higher requirement on the response speed of the system. The complex environment of the test field requires that the test system has strong anti-interference capability.
The most common method at present is to monitor the explosion shock wave by using a shock wave data acquisition device and research the propagation rule and damage effect of explosion by using the tested overpressure data of the shock wave. Most of shock wave acquisition systems used at present adopt a lead testing device for cable communication, a storage testing device without communication with the outside or a testing device with a short-distance wireless communication function, and all aspects such as safety, convenient arrangement, anti-interference capability and the like cannot be considered.
Disclosure of Invention
The invention provides a high-speed high-frequency shock wave overpressure data acquisition device and an acquisition method, and aims to solve the problems of difficulty in layout, weak anti-interference capability, insufficient safety and the like of the conventional test device.
In some optional embodiments, according to a first aspect of embodiments of the present invention, to solve the above problem, the present invention discloses a high-speed high-frequency shock wave overpressure data acquisition device, which includes an acquisition system and an acquisition module, where the acquisition module includes a signal acquisition module, an optical trigger module, a remote transmission module, a data storage module, and a control module.
Optionally, the signal acquisition module is connected to the control module through an FSMC interface.
Optionally, the data storage module is connected to the control module through an SDIO interface.
Optionally, the remote transmission module includes an instruction transmission part and a data transmission part, and the control module is composed of two STMs 32 and communicates with each other through USART.
By adopting the optional embodiment, the optical triggering module is used for receiving optical signals generated by explosion and triggering the system, the signal acquisition module is used for acquiring shock wave signals generated by explosion, the remote transmission module is used for receiving instructions transmitted by a computer and transmitting data to the computer, the data storage module is used for storing the acquired data and waiting for transmission, and the control module is used for controlling the acquisition of signals and the basic operation of the system.
Optionally, the signal acquisition module includes an overpressure sensor, a constant current circuit, a GPS chip and an AD conversion chip, and with the optional embodiment, the constant current circuit supplies 2 to 20mA current to the sensor, the GPS chip provides a conversion timing sequence for the AD chip, and the sampling frequency of the AD conversion chip is 3 MBPS.
Optionally, the acquisition system mainly includes an SD card, an optical trigger device, a remote instruction transmission chip, and a remote data transmission chip.
By adopting the optional embodiment, the optical trigger device can also keep the system in a standby state before the shock wave is collected, so that the power consumption is reduced; the independent remote instruction transmission chip and the independent remote data transmission chip ensure strong remote anti-interference capability; and the SD card can be used for reading data and storing data when the device is damaged and cannot be transmitted in a long distance.
According to a second aspect of the embodiments of the present invention, there is provided a high-speed high-frequency shock wave overpressure data acquisition method for controlling the apparatus according to the aforementioned alternative embodiments.
In some optional embodiments, the acquiring method step comprises: the computer sends a starting-up instruction to the system, the system starts up after receiving the instruction, a trigger module triggers the system when a collecting signal arrives, and a sensor system collects a shock wave signal after triggering;
and the digital signal converted from the acquired analog signal is transmitted to the storage module for storage, and the instruction transmission module receives a reading command sent by the computer and starts data transmission through data transmission.
By adopting the optional embodiment, compared with the traditional lead wire electrical measurement method and the traditional storage test method, the acquisition method supports the combination of field reading and remote reading of data, can use the SD card to read the data storage function when the device is damaged and cannot be transmitted in a long distance, greatly improves the reliability and the data storage length, adopts the optical triggering technology, realizes the acquisition of shock wave data at the moment of explosion, reduces the quantity of useless data, adopts an independent remote communication chip, and enhances the safety and the anti-interference function of the test.
Drawings
The structure and features of the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of the architecture of an embodiment of the present invention;
FIG. 2 is a block diagram of the flow of information in a work project of the present invention;
fig. 3 is a flow chart of the operation of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 and fig. 2 show an embodiment of the invention, and disclose a high-speed high-frequency shock wave overpressure data acquisition device, which comprises an acquisition system and an acquisition module, wherein the acquisition module mainly comprises a signal acquisition module 101, an optical trigger module 102, a remote transmission module 103, a data storage module 104 and a control module 105.
Optionally, the optical trigger module 102 triggers the system to start data acquisition before the shock wave arrives after the explosion.
Optionally, the signal acquisition module 101 is connected to the control module 105 through an FSMC interface, and in this optional embodiment, the signal acquisition module 101 is configured to acquire a shock wave overpressure signal, and optionally, the data storage module 104 is connected to the control module 105 through an SDIO interface, and in this optional embodiment, the data storage module 104 stores the acquired shock wave data and waits for reading.
Optionally, the remote transmission module 103 includes a remote instruction transmission portion and a remote data transmission portion, and with this optional embodiment, the remote instruction transmission portion is configured to receive instructions, such as power on, power off, and data transmission, transmitted from the computer, so that the system performs corresponding work and is connected to the controller through the SPI interface; the long-distance data transmission part 103 sends the stored data to the computer after receiving the data transmission instruction, uploads the data and realizes the data transmission and is connected with the control module 105 through a USART interface.
Optionally, the control module 105 is composed of two STMs 32, and communicates with each other through USART, and with this optional embodiment, the control module is used for controlling data acquisition and various functions of the system, and the control module is connected with other modules through interfaces such as FSMC, SPI, SDIO, and USART.
Optionally, the signal acquisition module 101 includes an overpressure sensor, a constant current circuit, a GPS chip and an AD conversion chip, and with the optional embodiment, the constant current circuit supplies a current of 2 to 20mA to the sensor, the GPS chip provides a conversion timing sequence for the AD chip, a sampling frequency of the AD conversion chip is 3MBPS, the overpressure sensor acquires the shock wave overpressure signal during the operation of the acquisition device, and receives instructions and stores and transmits data through various devices externally extended from the processor, the shock wave is converted into an analog electrical signal by the overpressure sensor, and then is converted into a digital signal by the AD conversion chip, and is stored in the storage module under the control of the control module, and finally the shock wave overpressure data stored in the system is wirelessly transmitted to the computer through the data transmission part.
Optionally, the acquisition system mainly includes an SD card, an optical trigger device, a remote instruction transmission chip, and a remote data transmission chip.
By adopting the optional embodiment, the optical trigger device can also keep the system in a standby state before shock wave acquisition, reduce power consumption, ensure strong remote anti-interference capability by using a remote instruction transmission chip and a remote data transmission chip, and can read data and store data by using an SD card when the device is damaged and cannot transmit remotely.
Optionally, the optical trigger device has an optical trigger function, wherein a specific method of optical trigger is as follows: the optical sensor is used for converting an optical signal generated by explosion into an electric signal, the generated electric signal is used as a trigger signal of the acquisition system, and the system starts to acquire and store data after receiving the trigger signal.
Fig. 3 is another embodiment of the present invention, which discloses a high-speed high-frequency shock wave overpressure data acquisition method, the acquisition method includes the steps of:
firstly, after the field layout is finished, waiting for the computer to send an instruction, the system receives a starting instruction transmitted by the computer through the remote transmission module, then starts the system and enters a standby state to wait for an explosion signal to arrive, secondly, the optical signal generated after explosion reaches the acquisition device and can be considered as occurring simultaneously with the explosion, the shock wave signal reaches within a few ms after the explosion occurs, the optical signal triggers the optical trigger device, the optical trigger device sends out a trigger signal, then, the signal acquisition module starts to acquire the shock wave signal after the system receives the trigger signal, the acquisition stops after a period of time, and storing the acquired signals into a storage module, finally, sending a data transmission instruction by a computer system, transmitting the stored data to a computer by a shock wave overpressure data acquisition system, sending a shutdown instruction by the computer, shutting down the shock wave overpressure data acquisition system, and waiting for next awakening.
Compared with the traditional lead wire electrical measurement method and storage test method, the acquisition method supports the combination of field reading and remote reading of data, can read the data storage function by using the SD card when the device is damaged and cannot be transmitted in a long distance, and greatly improves the reliability;
in addition, the acquisition method uses an independent remote instruction transmission chip and an independent remote data transmission chip, thereby ensuring strong remote anti-interference capability and ensuring the safety of measuring personnel to the maximum extent; in addition, the acquisition method adopts a mode of starting acquisition after light triggering, so that the completeness of the acquired data is ensured to the maximum extent, and the acquisition of a large amount of useless data before the generation of effective data is avoided.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a high-speed high frequency shock wave superpressure data acquisition device which characterized in that: the device comprises an acquisition system and an acquisition module, wherein the acquisition module comprises a signal acquisition module (101), a light trigger module (102), a remote transmission module (103), a data storage module (104) and a control module (105).
2. The high-speed high-frequency shock wave overpressure data acquisition device according to claim 1, wherein: the signal acquisition module (101) is connected with the control module (105) through an FSMC interface, and the data storage module (104) is connected with the control module (105) through an SDIO interface.
3. The high-speed high-frequency shock wave overpressure data acquisition device according to claim 1, wherein: the signal acquisition module (101) comprises an overpressure sensor, a constant current circuit, a GPS chip and an AD conversion chip.
4. The high-speed high-frequency shock wave overpressure data acquisition device according to claim 3, wherein: the sampling frequency of the AD conversion chip is 3 MBPS.
5. A high-speed high-frequency shock wave overpressure data acquisition method is characterized by being used for controlling the device as claimed in any one of claims 1 to 4, and comprising the step of acquiring shock wave signals.
6. The high-speed high-frequency shock wave overpressure data acquisition method according to claim 5, characterized in that: the computer sends a starting-up instruction to the acquisition system, the acquisition system starts up after receiving the instruction, the trigger module triggers the system when a signal to be acquired arrives, the sensor system acquires a shock wave signal after triggering, the acquired signal is stored in the SD card, the system waits for the instruction sent by the computer, and the system transmits shock wave data to the computer after receiving the sending instruction.
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| CN201910065953.9A CN111476985A (en) | 2019-01-24 | 2019-01-24 | High-speed high-frequency shock wave overpressure data acquisition device and acquisition method |
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| CN201910065953.9A CN111476985A (en) | 2019-01-24 | 2019-01-24 | High-speed high-frequency shock wave overpressure data acquisition device and acquisition method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301538A (en) * | 2021-05-20 | 2021-08-24 | 张世杰 | Information transmission method of near field communication technology in intelligent park |
| CN113386386A (en) * | 2021-07-06 | 2021-09-14 | 上海海得控制***股份有限公司 | Punch data acquisition method, system, medium and device of rotary high-speed tablet press |
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2019
- 2019-01-24 CN CN201910065953.9A patent/CN111476985A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301538A (en) * | 2021-05-20 | 2021-08-24 | 张世杰 | Information transmission method of near field communication technology in intelligent park |
| CN113386386A (en) * | 2021-07-06 | 2021-09-14 | 上海海得控制***股份有限公司 | Punch data acquisition method, system, medium and device of rotary high-speed tablet press |
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