CN205484008U - Portable laser methane detection device - Google Patents

Abstract

The utility model discloses a portable laser methane detection device and detection method, including data acquisition module, ARM treater that is used for humiture and the collection of methane concentration and the man -machine interaction module who is used for showing data and input data, be connected with data acquisition module and man -machine interaction module on the ARM treater. The utility model discloses an embedded ARM treater, through the collection of data acquisition module to methane concentration and humiture data, the ARM treater has realized that response speed is faster, the measuring error is small, strong interference rejection, data acquisition's the precision and the security of control is greatly improved, avoid the emergence probability of accident, the data collection error is big in can realizing effectively having solved prior art, slow and the low and high problem of occurrence probability of accident of the poor security that causes of interference killing feature of corresponding speed, the utility model discloses still have simple structure, low price and control convenient and fast's characteristics, through the calculation of fuzzy reasoning algorithm acquisition methane slewing rate realization danger coefficient, let and forecast that the dangerous situation is scientific more with rationally.

Description

A kind of portable laser CH_4 detection device

Technical field

This utility model belongs to Minepit environment safety testing field, is specifically related to a kind of portable laser methane Detection device.

Background technology

China is coal production maximum in the world and country of consumption, be also in the world a few based on coal One of country wanting the energy.In progress of coal mining, have multiple harmful gas to coexist in coal seam, as CH4, CO etc..CH4, CO content is many, and is insoluble in water, belongs to again flammable explosive gas, and gas density reaches Explosion limit, have enough oxygen and uniform temperature ignite burning things which may cause a fire disaster time, gas explosion will occur, Hidden danger is brought to the life security of coal mining person.

At present, the gases used detector in China's coal-mine down-hole based on one-parameter detector, in-convenience in use, And when detecting, detection response speed is slow, error is big, capacity of resisting disturbance is weak in detection, intelligence degree not The problems such as height, the speed of service is slow, real-time is the strongest, leverage the precision of data acquisition, Under ore deposit, safety monitoring is poor, and contingency occurrence probability is high, and is merely able to Detectability loss methane concentration and judges Danger, for when methane concentration is in relatively low dangerous concentrations temporarily but just approaches higher risk with fast speed During state, and traditional instrument cannot solve this problem, thus often result in wrong report and fail to report, and tests not section Learn unreasonable, it addition, the display result of traditional detection instrument is concentration data, be often difficult to reflect intuitively The dangerous situation of gas, particularly to layman.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of portable laser CH_4 detection device, More accurately and fast, stablizing, acquisition precision is higher, and safety monitoring is more preferable, and accident rate is significantly Reduce, to solve problems of the prior art.

The technical scheme that this utility model is taked is: a kind of portable laser CH_4 detection device, including using The data acquisition module that gathers with methane concentration in humiture, arm processor and for video data and defeated Entering the human-computer interaction module of data, described arm processor connects data acquisition module and man-machine interaction Module.

Preferably, above-mentioned arm processor is connected to monitor terminal by wireless communication module, by monitoring The distribution situation of terminal monitoring methane, it is possible to make security arrangement and security strategy in time, improves monitoring Safety.

Preferably, above-mentioned data acquisition module includes that 51 singlechip chips and 51 single-chip microcomputers connect humiture Sensor and laser methane sensor, connected by single-chip microcomputer, only needs serial port drive, controls and installs more Convenient.

Preferably, above-mentioned arm processor connects acousto-optic alarm device and vibration prompting device, acousto-optic report Alarm device includes warning lamp and Feng Ming device or loudspeaker, when methane concentration and humiture exceed setting threshold values, Acoustic-optic alarm will send acousto-optic and remind, and is greatly improved safety and promptness, and minimizing accident occurs, When, under the adverse circumstances that under mine, noise is big, dust is dense and visibility is low, acoustic-optic alarm warning is imitated The poorest, vibration prompting device installs additional and solves this problem.

Preferably, above-mentioned arm processor connects the data memory module for storing data, and data are deposited Storage module can store the data of detection, in case subsequent query and use analysis.

Preferably, above-mentioned arm processor uses S3C2440 chip.

Preferably, above-mentioned human-computer interaction module uses touch screen, and touch screen shows and setup parameter is convenient, Compact conformation, equipment carries more convenient.

Preferably, above-mentioned wireless communication module uses 3G/4G wireless module, and transmission data are reliably quick, Occurring that danger processes in time, the uploading speed of 4G data communication can reach 20Mbps, and can be at DSL The local deployment being not covered with Cable Modem, coverage rate is wider.

The beneficial effects of the utility model: compared with prior art, this utility model uses embedded-type ARM Processor, by data acquisition module to methane concentration and the collection of humiture data, arm processor is real Having showed response speed faster, measurement error is little, and capacity of resisting disturbance is strong, substantially increases the essence of data acquisition Degree and the safety of monitoring, it is to avoid the probability of happening of accident, it is possible to realize efficiently solving in prior art The safety big, that corresponding speed slow and poor anti jamming capability causes of collection error in data is low and accident occurs The problem that probability is high, this utility model also has simple in construction, low price and spy efficiently easy to control Point, and Fuzzy Logic Reasoning Algorithm calculates the danger coefficient more science that the rate of change of methane concentration is inferred More reasonable, senior general is low contingency occurrence probability, workman under ore deposit is safely provided more sound assurance Efficiently solve and existing detection method is forecast the unreasonable and the most scientific of danger coefficient.

Accompanying drawing explanation

Fig. 1 is control structure schematic diagram of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings and utility model is described further by specific embodiment.

As shown in Figure 1, a kind of portable laser CH_4 detection device, including for humiture and methane Concentration gather data acquisition module, arm processor and for video data and input data man-machine friendship Module mutually, described arm processor connects and has data acquisition module and human-computer interaction module, and controller is also Connect and have power module, power module to include the charging module that accumulator and accumulator connect, it is to avoid under ore deposit Accumulator electric-quantity is finished cannot detecting of causing, and just directly can be charged under mine by charging module, Time saving and energy saving, single unit system is integrated in a housing, forms a portable detection device.

Above-mentioned arm processor is connected to monitor terminal by wireless communication module, is monitored by monitor terminal The distribution situation of methane, it is possible to make security arrangement and security strategy in time, improves the safety of monitoring.

Above-mentioned data acquisition module include 51 singlechip chips and 51 single-chip microcomputers connect Temperature Humidity Sensor and Laser methane sensor, is connected by single-chip microcomputer, only needs serial port drive, controls and installs more convenient.

Above-mentioned arm processor connects acousto-optic alarm device and vibration prompting device, acoustic-optic alarm bag Include warning lamp and Feng Ming device or loudspeaker, when methane concentration and humiture exceed setting threshold values, sound and light alarm Device will send acousto-optic and remind, and is greatly improved safety and promptness, and minimizing accident occurs, and works as mine Under the adverse circumstances that lower noise is big, dust is dense and visibility is low, acoustic-optic alarm alarming effect is poor, Vibration prompting device installs additional and solves this problem.

Above-mentioned arm processor connects the data memory module for storing data, and data memory module can With the data of storage detection, in case subsequent query and use analysis.

Above-mentioned arm processor uses S3C2440 chip.

Above-mentioned human-computer interaction module uses touch screen, and touch screen shows and setup parameter is convenient, compact conformation, Equipment carries more convenient.

Above-mentioned wireless communication module uses 3G/4G wireless module, and transmission data are reliably quick, danger occur Process in time.

Use principle: first carry out signals collecting, will by Temperature Humidity Sensor and laser methane sensor The humiture of Minepit environment and methane concentration are sent to 51 single-chip microcomputers with the form of voltage/current signals, and 51 Single-chip microcomputer is through signal processing, then transmits data to S3C2440 chip and be further analyzed process, Use Fuzzy Logic Reasoning Algorithm as methane concentration parser, use fuzzy reasoning to calculate the signal collected Method is analyzed processing, and draws the rate of change of methane concentration, and then calculates the fiery fried danger coefficient of chance, When danger coefficient is higher, send alarm signal.By analysis process after draw current methane concentration, The information such as methane concentration rate of change, danger coefficient, current humiture are shown with intuitive way by touch screen Illustrate.These data messages can be saved in data memory module, the most manually opened nothing simultaneously These data messages can be passed through 3G/4G module transfer to monitor terminal mobile phone or computer after line function In.

Embodiment 2: the detection method of a kind of portable laser CH_4 detection device, the method includes following step Rapid: first, by the laser methane sensor on portable laser CH_4 detection device by Minepit environment Methane concentration be sent to arm processor with the form of voltage/current signals；Secondly, arm processor The voltage/current signals of acquisition is carried out process and obtains methane concentration and self storage of acquisition time storage Module, methane concentration and the acquisition time of arm processor timing reading data memory module use fuzzy Reasoning algorithm calculates the rate of change of methane concentration, and then calculates the fiery fried danger coefficient of chance.

Fuzzy Logic Reasoning Algorithm calculates danger coefficient more science that the rate of change of methane concentration infers more Rationally, senior general is low contingency occurrence probability, workman under ore deposit is safely provided more sound assurance effective Solve and existing detection method is forecast the unreasonable and the most scientific of danger coefficient.

Use arm processor to calculate, fast response time, process quickly, be greatly improved accuracy of detection and Data reliability.

Laser methane sensor there is the highest accuracy of detection and response speed, as shown in table 1.

Table 1 laser methane sensor and the melancholy shortcoming of catalysis combustion of methane sensor

This utility model has the reflection of more scientific rational concentration dangerous situation and type of alarm, methane gas Concentration detection apparatus is applied widely, and the method that the many employings of conventional apparatus arrange alarm threshold, concentration is low Do not report to the police when threshold value, reach at or above thresholding alarm.But fact proved, when methane concentration is located temporarily When in relatively low dangerous concentrations but just approaching higher risk state with fast speed, degree of danger more should be closed It is classified as higher risk state to reason, and traditional instrument cannot solve this problem, thus often result in wrong report Fail to report, it addition, the display result of traditional detection instrument is concentration data, be often difficult to reflect intuitively gas Dangerous situation, particularly to layman.

The introducing of Fuzzy Logic Reasoning Algorithm, for overcoming these shortcomings to provide feasible way.This utility model is transported The concentration of methane blended gas and dense can be detected accurately and efficiently with Fuzzy Logic Reasoning Algorithm prediction danger coefficient Degree rate of change, and then calculate the fiery fried danger coefficient of chance, and provide a user with dense in aobvious meaning mode simultaneously Degree-rate of change and danger coefficient, expanded instrumental function well, significantly improves detection reliability.With Time greatly strengthen intuitive display, widened the scope of application of instrument, to methane collection such as industrial and mineral, gas stations The safety in production on middle ground has extremely important effect with operation.

It addition, fact proved traditional sound and light alarm mode in the adverse circumstances under mine (noise is big, Dust is dense, and visibility is low) good warning function can not be played, add in this utility model and shake Dynamic suggestion device.

The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model It is not limited thereto, the technology model that any those familiar with the art discloses at this utility model In enclosing, change can be readily occurred in or replace, all should contain within protection domain of the present utility model, because of This, protection domain of the present utility model should be as the criterion with described scope of the claims.

Claims (8)

1. a portable laser CH_4 detection device, it is characterised in that: include for humiture and methane concentration Gather data acquisition module, arm processor and for video data and input data man-machine interaction mould Block, described arm processor connects and has data acquisition module and human-computer interaction module.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Arm processor is connected to monitor terminal by wireless communication module.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Data acquisition module includes that 51 singlechip chips and 51 single-chip microcomputers connect laser methane sensor.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Arm processor connects acousto-optic alarm device and vibration prompting device.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Arm processor connects the data memory module for storing data.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Human-computer interaction module uses touch screen.

A kind of portable laser CH_4 detection device the most according to claim 2, it is characterised in that: described Wireless communication module uses 3G/4G wireless module.

A kind of portable laser CH_4 detection device the most according to claim 1, it is characterised in that: described Arm processor uses S3C2440 chip.