CN103942936A - Remote vibration measurement collector and blasting signal collection method - Google Patents
Remote vibration measurement collector and blasting signal collection method Download PDFInfo
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- CN103942936A CN103942936A CN201310469321.1A CN201310469321A CN103942936A CN 103942936 A CN103942936 A CN 103942936A CN 201310469321 A CN201310469321 A CN 201310469321A CN 103942936 A CN103942936 A CN 103942936A
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Abstract
The invention discloses a remote vibration measurement collector which can remotely set configuration parameters of the vibration measurement collector, collects a blasting vibration signal and automatically uploads the blasting vibration signal to a server. Real-time uploading of the blasting vibration signal collected on the spot is achieved, and thus online calculation and analysis treatment is achieved, interference of human factors is overcome, the reliability of vibration measurement data and analysis results is improved, and the public confidence of a vibration measurement analysis report in a legal level is improved.
Description
Technical field
The present invention relates to blasting vibration Signal Collection Technology field, particularly a kind of remote vibration measurement collector and blast signal acquisition method.
Background technology
Along with the fast development that state-owned economy is built, blasting technique is more and more applied to mining, railway and highway cutting shaping, tunnel excavation, water conservancy and hydropower Facilities Construction and the Geotechnical Engineering such as move mountains and fill seas.The application of blasting technique has greatly reduced people's labour intensity, has improved widely work efficiency, has promoted the development of national economic development.But along with the widespread use of blasting technique, people are also more and more pays close attention to the impact that explosions cause surrounding environment and buildings.Along with the enhancing day by day of the complicated of explosion environment and people's awareness of safety, people have given unprecedented concern and attention to vibration measuring.
Wherein, how to realize vibration measuring collector the blasting vibration signal of collection in worksite is realized and being uploaded in real time, overcome the interference of human factor, to improving the confidence level of vibration measuring data and analysis result, improve the public trust of vibration measuring analysis report in law aspect particularly important.
And now widely used vibration measuring collector needs the manual blasting vibration signal of collecting that obtains from vibration measuring collector of vibration measuring personnel.Vibration measuring personnel are manual obtains blasting vibration signal from vibration measuring collector, easily destroy vibration measuring data validity, or people is for distorting blasting vibration data, affects vibration measuring analysis result.
Current industry collector major way is equipment collection, then the data that collect by software processing.Collector software separates with collecting device widely, and collector is only responsible for gathering and store data, and the software being arranged on PC end or other equipment is responsible for the processing to data, forwards etc.
Summary of the invention
Goal of the invention of the present invention is the technical deficiency gathering for existing blast signal, and a kind of remote vibration measurement collector and blast signal acquisition method are provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of remote vibration measurement collector, it comprises the collection control chip based on Android embedded system and the electric power management circuit being connected with collection control chip; Described electric power management circuit comprises the electric quantity of power supply detection chip being connected with external power source modulate circuit, and this chip is responsible for detecting the health status of input power lithium battery; Gathering control chip is connected with server by wireless network.
Further optimally, described collection control chip comprises serial ports controller, USB controller, Serial Peripheral Interface (SPI), display interface device and SD slot.
Further optimally, described remote vibration measurement collector also comprises storer, analog to digital converter, sensor, touch LCD screen, physical button, storage system, SD card controller; Described collection control chip is connected with storer and analog to digital converter; Described touch LCD screen, physical button, storage system and SD card controller are all connected with collection control chip; Described sensor gathers blasting vibration simulating signal; And this sensor adopts 3 mouthfuls of universal input/output channels to connect described analog to digital converter through programme control circut and the simulated modulation circuit of realizing signal attenuation successively again; Described analog to digital converter is responsible for analog to digital conversion, converts the blasting vibration simulating signal of sensor collection to digital signal, and transfers to gather control chip and be processed into file; The work clock of described analog to digital converter is provided by the pulse-length modulation output that gathers control chip inside, and described pulse-length modulation output reaches stable pulse speed more than 20MHz; Described touch LCD screen and physical button are as user interactions interface; Described storage system comprises system random access memory, flash memory and external storage; Wherein, random access memory and flash memory provide running memory and the program space for Android system, and external storage is for storing the file obtaining from collector.
Further preferably, described wireless network comprises wireless Internet card or built-in Wireless USB network interface card.
The present invention also provides a kind of blast signal acquisition method that adopts above-mentioned remote vibration measurement collector, and it comprises the steps:
1) elder generation's application task from server, and the task key of application is added in usb key dish;
2) parameter and the collection signal duration of described collector collection signal are set;
3) then, insert usb key dish, after described collector starts, Auto-matching information, after match information success, described collector gathers blasting vibration signal, after collection, collector exists the numbering of the blasting vibration signal of collection and collector in external storage in the mode of file;
4) last, collector is uploaded onto the server file by wireless network again.
Further, in step 1), each collector comprises a unique device keys, and device keys is provided with unique numbering, and this information all can be registered to the server in archives in the time that collector is produced; And each collector needs to carry out task application to server before using, and the task key of application is downloaded to usb key dish, described archives are gate systems of management vibration measuring information, described task key is the demolition duty enciphered message that archives generate automatically, described device keys is the enciphered message of recording unit information, and described usb key dish is the flash disk at access general serial mouth.
Further, step 2) in, vibration measuring personnel arrange explosion acquisition parameter on collector by user interactions interface.
Further, in step 3), after described device keys and the success of described task key match, then start sensor gathers; Collector utilizes the blasting vibration simulating signal that analog to digital converter collects sensor to be converted at high speed digital signal, then by digital signal writing in files and have a collector.
Further, described analog to digital converter is realized serial process interface agreement by universal input/output channel and is transferred at a high speed the blasting vibration simulating signal of sensor collection to digital signal to reach; The mode of described digital signal writing in files adopts C language compilation, is programmed in the JNI layer of Android system, skips JVM virtual machine, accelerates the operation to internal memory, the time of greatly slowing down writing in files.
Further, in step 4), server is according to collector numbering and task key identification coupling collector.
Adopt the collector operation Android system of technique scheme, and described collector is connected with server by wireless network, and can checks by human-computer interaction interface the information of collector, particularly display power supply information about power in real time.
The present invention, with respect to prior art, has following beneficial effect:
1, the present invention is by gathering collection in worksite blasting vibration signal, realized upload, in the full-automation of line computation and analyzing and processing flow process, overcome the interference of human factor, improved the reliability of vibration measuring data, improved the public trust of vibration measuring analysis report in law aspect.
2, the present invention is that each remote vibration measurement collector has configured unique numbering; Staff, in writing vibration measuring analysis report, finds corresponding remote vibration measurement collector by this numbering, further in server, obtains all parameters in the respective file of remote vibration measurement collector; And this numbering can provide foundation for the legitimacy of later stage check dight signal.
3, the present invention monitors the health status of input lithium battery in real time by electric quantity of power supply detection chip, staff can check electric quantity of lithium battery information at human-computer interaction interface, change in time supporting lithium battery, better for remote vibration measurement collector working healthily state provides guarantee.
4, the present invention is that each remote vibration measurement collector has configured unique device keys, ensure that device keys transmits the security of the whole life cycle of destruction to use and after gathering again from producing to, and before each remote vibration measurement collector uses, staff will arrive server application task key, has ensured that task key is subject to strict control of authority; Only have after device keys and the success of task key match information, this collector just gathers blasting vibration signal, has improved high reliability and the high security of vibration measuring analysis report.
5, the present invention utilizes GPIO tunnels analogy to realize SPI agreement, by analog to digital converter, the blasting vibration simulating signal of sensor collection is converted to digital signal; Because the SPI interface driver of Android embedded system on ARM cannot meet the needed transfer rate of analog to digital converter; Therefore, the present invention is simulated and is realized SPI agreement to reach the effect that the blasting vibration signal of sensor collection is transferred at a high speed to digital signal by GPIO passage.
6, the present invention utilizes the JNI layer in Android embedded system to realize internal memory application and read-write operation, thereby skip Android application layer by the operation of JVM virtual machine to internal memory, realize the preservation to high speed analog-to-digital conversion result by this technology, greatly improved the operating rate of collector.
Brief description of the drawings
Fig. 1 is acquisition method general flow chart of the present invention.
Fig. 2 is the collector hardware elementary diagram of embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, goal of the invention of the present invention is described in further detail, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.Unless stated otherwise, the present invention adopts material and job operation are the art conventional material and job operation.
Workflow of the present invention as shown in Figure 1.This invention provides a kind of remote vibration measurement collector that vibration measuring collector configuration parameter can be long-rangely set and blasting vibration signal is gathered and blasting vibration signal is uploaded onto the server automatically, and this remote vibration measurement collector is connected with server 2 by wireless network.
Blast signal acquisition method based on above-mentioned Acquisition Circuit, comprises the steps:
1) parameter and the collection signal duration of collector collection signal are first set;
2) then, this collector gathers blasting vibration signal, and after collection, collector is uploaded onto the server the numbering of the blasting vibration signal of collection and collector by wireless network in the mode of file by file.
Particularly, first, for distributing unique device keys on each collector, in key, comprise unique device numbering.Can find corresponding collector by this numbering.
Collector hardware principle as shown in Figure 2.Collector has adopted the arm processor based on Android embedded system.Wherein, because ARM11 chip provides numerous I/O hardware resources, such as universal serial port, USB interface, SPI serial communication interface, LCD interface etc., can be the collector practical hardware resource of providing convenience.Therefore, this collector adopts S3C6410 ARM11 as control chip; Control chip is provided with serial ports controller, USB controller, SPI Serial Peripheral Interface (SPI) and LCD display interface.Collector also comprises storer, analog to digital converter, sensor, network chip and power source special measurement chip.Analog to digital converter adopts ADS1274 chip, and network chip adopts DM9000 chip, and power source special is measured chip and adopted MAX17044 chip.Control chip is connected with storer, ADS1274 chip, and storer is also connected with ADS1274 chip.Control chip is connected with DM9000 chip, and this collector Adoption Network chip is connected with server.Control chip is also connected with MAX17044 chip, and this collector adopts power source special measurement chip to be connected with external power source modulate circuit.This collector adopts sensor to gather blasting vibration simulating signal.ADS1274 chip connects control chip by 3 mouthfuls of GPIO passages, and this collector adopts ADS1274 chip to be responsible for analog to digital conversion, converts the blasting vibration simulating signal of sensor collection to digital signal and transfers to control chip processing.Wherein, wherein a bite passage of 3 mouthfuls of GPIO passages is responsible for simulating SPI sequential, and a bite passage is responsible for reading SPI data, and another mouthful of passage is responsible for having judged the moment of conversion.The work clock of ADS1274 is provided by the pulse-length modulation output of control chip inside.
ADS1274 chip is responsible for realizing analog-digital conversion function, first the simulating signal of sensor is converted to after corresponding digital signal, then gives ARM and carry out subsequent treatment.ADS1274 chip switching rate is high, and the speed that SPI reads after conversion must be higher than the switching rate of ADS1274 chip.Because the SPI interface driver that carry of Android embedded system on ARM cannot meet the needed high transfer rate of ADS1274, therefore adopting general GPIO mouth to simulate, the present invention realizes SPI agreement.In the present invention, use the general GPIO passage of 3 ports to be connected to ADS1274, one of them port is responsible for simulating SPI sequential, and a port is responsible for reading SPI data, and the moment of conversion is responsible for having judged in another port.In gatherer process, strict control gathers SPI clock, makes it reach square wave, avoids the reading cycling in driving.The work clock of ADS1274 is responsible for providing by the inner PWM output of S3C6410, and this PWM can export the stable pulse speed reaching more than 20MHz.
Owing to completing this high speed acquisition action need, CPU is strictly seized, so entering before image data, first close that kernel is seized and all interruptions, start image data, after finishing to gather, reduce all interruptions and kernel to seize.Collector transfer files is realized by DM9000 chip to server.
Wherein, collector is the ARM equipment based on Android embedded system, realizes following functions: the parameter of collection signal is set, for example, gathers duration, and sampling rate etc., then start sensor gathers.In the process that sensor gathers, the blasting vibration simulating signal that collector collects sensor with ADS1274 chip is converted into digital signal, and by these digital signal writing in files.
Collector is converted into digital signal by controlling ADS1274 chip at high speed by the blasting vibration signal of sensor collection.Because the SPI interface driver of Android embedded system on ARM cannot meet the needed transfer rate of ADS1274.Therefore, the present invention realizes SPI agreement by GPIO passage and transfers at a high speed the blasting vibration signal of sensor collection to digital signal to reach.
This collector adopts SD-WIFI for realizing the connection of wireless network, thereby is connected with server.Touch LCD screen and 4 physical button are as user interactions interface.Storage system comprises RAM, Flash and SD storer; Wherein, RAM and Flash provide running memory and the program space, the data that SD storer obtains for storage of collected for Android system.
This collector reads the capacity of battery by controlling MAX17044 chip, and can pass through the real-time display power supply information about power of human-computer interaction interface.Because the voltage of external power source does not meet the operating voltage of this collector, therefore the present invention is converted into the operating voltage state of collector by external power source modulate circuit.MAX17044 chip is responsible for realizing the capacity function that reads battery, after the magnitude of voltage after first external power source modulate circuit being transformed, reads corresponding magnitude of voltage, then give ARM and carry out subsequent treatment by I2C interface.
Vibration measuring personnel arrange explosion acquisition parameter by user interactions interface on collector.Collector gathers and by digital signal writing in files.Collector is uploaded onto the server the numbering of this file and collector on 2 by SD-WIFI.Server 2 can identify digital signal according to collector numbering and by which collector be gathered.
Above-described embodiment is only preferred embodiment of the present invention, is not used for limiting practical range of the present invention.Be that all equalizations of doing according to content of the present invention change and modify, all by the claims in the present invention scope required for protection is contained.
Claims (10)
1. a remote vibration measurement collector, is characterized in that comprising the collection control chip based on Android embedded system and the electric power management circuit being connected with collection control chip; Described electric power management circuit comprises the electric quantity of power supply detection chip being connected with external power source modulate circuit, and this chip is responsible for detecting the health status of input power lithium battery; Gathering control chip is connected with server by wireless network.
2. remote vibration measurement collector according to claim 1, is characterized in that: described collection control chip comprises serial ports controller, USB controller, Serial Peripheral Interface (SPI), display interface device and SD slot.
3. remote vibration measurement collector according to claim 1, is characterized in that: described remote vibration measurement collector also comprises storer, analog to digital converter, sensor, touch LCD screen, physical button, storage system, SD card controller; Described collection control chip is connected with storer and analog to digital converter; Described touch LCD screen, physical button, storage system and SD card controller are all connected with collection control chip; Described sensor gathers blasting vibration simulating signal; And this sensor adopts 3 mouthfuls of universal input/output channels to connect described analog to digital converter through programme control circut and the simulated modulation circuit of realizing signal attenuation successively again; Described analog to digital converter is responsible for analog to digital conversion, converts the blasting vibration simulating signal of sensor collection to digital signal, and transfers to gather control chip and be processed into file; The work clock of described analog to digital converter is provided by the pulse-length modulation output that gathers control chip inside, and described pulse-length modulation output reaches stable pulse speed more than 20MHz; Described touch LCD screen and physical button are as user interactions interface; Described storage system comprises system random access memory, flash memory and external storage; Wherein, random access memory and flash memory provide running memory and the program space for Android system, and external storage is for storing the file obtaining from collector.
4. remote vibration measurement collector according to claim 1, is characterized in that: described wireless network comprises wireless Internet card or built-in Wireless USB network interface card.
5. a blast signal acquisition method for remote vibration measurement collector described in employing claim 1 ~ 4 any one, is characterized in that comprising the steps:
1) elder generation's application task from server, and the task key of application is added in usb key dish;
2) parameter and the collection signal duration of described collector collection signal are set;
3) then, insert usb key dish, after described collector starts, Auto-matching information, after match information success, described collector gathers blasting vibration signal, after collection, collector exists the numbering of the blasting vibration signal of collection and collector in external storage in the mode of file;
4) last, collector is uploaded onto the server file by wireless network again.
6. blast signal acquisition method according to claim 5, it is characterized in that: in step 1), each collector comprises a unique device keys, and device keys is provided with unique numbering, and this information all can be registered to the server in archives in the time that collector is produced; And each collector needs to carry out task application to server before using, and the task key of application is downloaded to usb key dish, described archives are gate systems of management vibration measuring information, described task key is the demolition duty enciphered message that archives generate automatically, described device keys is the enciphered message of recording unit information, and described usb key dish is the flash disk at access general serial mouth.
7. blast signal acquisition method according to claim 5, is characterized in that: step 2) in, vibration measuring personnel arrange explosion acquisition parameter on collector by user interactions interface.
8. blast signal acquisition method according to claim 5, is characterized in that: in step 3), after described device keys and the success of described task key match, then start sensor gathers; Collector utilizes the blasting vibration simulating signal that analog to digital converter collects sensor to be converted at high speed digital signal, then by digital signal writing in files and have a collector.
9. blast signal acquisition method according to claim 8, is characterized in that: described analog to digital converter is realized serial process interface agreement by universal input/output channel and transferred at a high speed the blasting vibration simulating signal of sensor collection to digital signal to reach; The mode of described digital signal writing in files adopts C language compilation, is programmed in the JNI layer of Android system, skips JVM virtual machine.
10. blast signal acquisition method according to claim 5, is characterized in that: in step 4), server is according to collector numbering and task key identification coupling collector.
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Application publication date: 20140723 |