CN202075221U

CN202075221U - Vehicular methane leakage monitoring device

Info

Publication number: CN202075221U
Application number: CN 201120167914
Authority: CN
Inventors: 尚中锋; 王书潜; 陈海永; 祁泽刚; 张青云
Original assignee: Henan Hanwei Electronics Co Ltd
Current assignee: Hanwei Technology Group Ltd By Share Ltd
Priority date: 2011-05-24
Filing date: 2011-05-24
Publication date: 2011-12-14
Anticipated expiration: 2021-05-24

Abstract

The utility model provides a vehicular methane leakage monitoring device, which comprises a vehicular methane leakage detector, a microprocessor circuit, a GPS (global positioning system) module, a GPRS (general packet radio service) module, a display module and a power circuit. The microprocessor circuit is connected with the GPS module so as to acquire real-time position information of the vehicular methane leakage detector, the microprocessor circuit is connected with the GPRS module so as to achieve remote communication, the microprocessor circuit is further connected with the display circuit so as to display detection results of the vehicular methane leakage detector by the aid of the position information of the vehicular methane leakage detector, the power circuit is respectively connected with the microprocessor circuit, the GPS module, the GPRS module and the display circuit, and the vehicular methane leakage detector comprises a microprocessor which is connected with the microprocessor circuit through an interface circuit. The vehicular methane leakage monitoring device has the advantages of real-time monitoring, timely information feedback and guarantee on treatment after accidents.

Description

Vehicle-mounted methane leakage monitor

Technical field

The utility model relates to a kind of gas concentration detector device, specifically, has related to a kind of vehicle-mounted methane leakage monitor.

Background technology

Along with the continuous development of national economy, industry, urban construction, resident living are also continuing to increase the combustion gas demand, and the gas safe operation shows importance day by day especially; How strengthening the management to gas safe, accident is taken precautions against in possible trouble, is the matter of utmost importance of gas transmission and distribution pipe network management; At present, for places such as gas ductwork, chemical plant, buildingss, can only manually carry detector and carry out the gas concentration detection, but the manual inspection workload is big, inefficiency, and manual inspection is easily encroached on by toxic gas.

For this reason, occurred a kind of vehicle-mounted methane leakage detector in the prior art, it can be in automobile normal running, real-time, the continuous gas leakage concentration monitoring of carrying out; But, in use, safety monitoring for intensive transmission and distribution pipeline, this instrument can't show the positional information of each leakage point in real time, and can not in real time the positional information of leakage point and the testing result of this leakage point be uploaded Surveillance center, this makes the supervision of Surveillance center have the problem that lags behind, and also makes leakage accident not dealt with the aftermath of timely.

In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, thus provide a kind of real-time monitoring, feedback information in time, the accident secure vehicle-mounted methane leakage monitor of dealing with problems arising from an accident.

To achieve these goals, the technical scheme that the utility model adopted is: a kind of vehicle-mounted methane leakage monitor, it comprises vehicle-mounted methane leakage detector, microcontroller circuit, the GPS module, the GPRS module, display circuit and power circuit, wherein, described microcontroller circuit connects described GPS module to obtain real-time vehicle-mounted methane leakage detector positional information, described microcontroller circuit connects described GPRS module to realize telecommunication, described microcontroller circuit connects described display circuit so that show the testing result of vehicle-mounted methane leakage detector positional information and vehicle-mounted methane leakage detector, and described power circuit connects described microcontroller circuit respectively, described GPS module, described GPRS module and described display circuit are to provide working power; Described vehicle-mounted methane leakage detector includes microprocessor, and described microcontroller circuit connects the microprocessor of described vehicle-mounted methane leakage detector by interface circuit.

The relative prior art of the utility model has substantive distinguishing features and progress, specifically, this vehicle-mounted methane leakage monitor combines the GPRS technology with the GPS technology, utilize the data in real time transfer function of GPRS module and the location and the navigation feature of GPS module, realized the data transmission of moving vehicle, vehicle-mounted methane leakage detector and Surveillance center, reached real-time monitoring, the safety of intensive transmission ﹠ distribution gas pipeline is effectively ensured methane leak position and leakage concentration; This device adopts advanced tunable semiconductor laser absorption spectrum technology, it has advantages such as highly sensitive, that antijamming capability is strong, reaction velocity is fast, work danger is low, and, it especially is fit to be used in combination with vehicle, it is vehicle fast running on one side, this device that is installed on the vehicle can be finished detection on one side fast, makes reaction time, detection speed, work efficiency be able to perfect optimization.

Description of drawings

Fig. 1 is a structured flowchart of the present utility model.

Embodiment

Below by embodiment, the technical solution of the utility model is described in further detail.

As shown in Figure 1, a kind of vehicle-mounted methane leakage monitor, it comprises vehicle-mounted methane leakage detector, microcontroller circuit, the GPS module, the GPRS module, display circuit and power circuit, wherein, described microcontroller circuit connects described GPS module to obtain real-time vehicle-mounted methane leakage detector positional information, described microcontroller circuit connects described GPRS module to realize and Surveillance center's telecommunication, described microcontroller circuit connects described display circuit so that show the testing result of vehicle-mounted methane leakage detector positional information and vehicle-mounted methane leakage detector, and described power circuit connects described microcontroller circuit respectively, described GPS module, described GPRS module and described display circuit are to provide working power; Described vehicle-mounted methane leakage detector includes microprocessor, and described microcontroller circuit connects the microprocessor of described vehicle-mounted methane leakage detector by interface circuit.

This device is used in combination with vehicle, may detect on the travel or the gas leakage of both sides, when having methane to leak generation,, and in time send sound and light alarm by the vehicle-mounted monitoring screen display, remind the testing staff to note, simultaneously, adopt the GPRS network communication module, the detection data of detector, the leakage point locating information of GPS module collection can be uploaded to Surveillance center in real time, so that Surveillance center takes further prevention, remedial measures, thereby effectively prevent the methane leakage accident to take place; Specifically, can obtain the leakage point locating information, and on electronic chart, show the particular location of leak source, simultaneously, can store the leakage point positional information and check to make things convenient for the user by display circuit by the GPS module; Because adopt the GPS module, the user can set in advance and patrol and examine route, make vehicle navigate and patrol and examine along the route of patrolling and examining that sets; The gas concentration of the different range of detection data shows that with the progress bar of different colours the particular location of leakage point can make marks to cause that the user notes with redness; Surveillance center can carry out continuous monitoring to the detection position intuitively according to the particular location and the detection data of vehicle on electronic chart, if find location of leak, arranges the maintenance personal in time to handle by Surveillance center.

The basic functional principle of described vehicle-mounted methane leakage detector: signal generating circuit produces modulation signal, drive laser, laser signal receives by air and by the laser signal receiver, the laser signal receiver is converted to electric signal to light signal, extract second harmonic signal through phase-locked amplifying circuit, after wave circuit is handled after filtration again, be converted to digital signal by analog to digital conversion circuit, give microcontroller circuit at last and handle, show the output testing result then; When gas leaks, resonance absorption will take place, its absorption intensity is relevant with the concentration of this gas, just can calculate the concentration of gas by the absorption intensity of measuring light; During use, it can replace manually going on-the-spot test fully, and can with Surveillance center's real-time Communication for Power, be convenient in time find and handle leakage accident.

The principle of tunable semiconductor laser absorption spectrum technology is as follows: when the absorbing wavelength of the emission wavelength of light source and gas matches, resonance absorption will take place, its absorption intensity is relevant with the concentration of this gas, but the concentration of measurement gas just of the absorption intensity by measuring light; It is to utilize the length scanning of semiconductor diode laser and a kind of technology that the electric current tuning characteristic is measured trace gas; Because therefore the high monochromaticity of diode laser can utilize an isolated absorption line of gas molecule that the absorption spectrum of gas is measured, thereby can identify different molecules easily from the composite pollution composition, has avoided the interference of spectrum; Laser methane detection technique is according to gas the principle that the bombardment with laser beams selectivity absorbs to be carried out, when certain material is subjected to laser beam irradiation, this matter selective absorbs the photon of certain frequency, thereby the transmitted intensity that shows as specific wavelength diminishes, utilize photoelectric device that transmitted intensity is changed and be converted to electric signal, can accurately draw methane concentration through calculating.

This vehicle-mounted methane leakage monitor has following advantage: 1, have navigation feature, and adopt the GPRS module, leak data is uploaded in real time; Reaction velocity is fast, and is highly sensitive, is fit to be used with the vehicle of fast running; 2, volume is little, and is in light weight, no electric spark, safety, anti-electromagnetic interference (EMI); 3, efficient height, high selectivity, anti-gas disturbs, high precision, Surveillance center can monitor in real time, also can provide sound and light alarm; 4, simple to operate, single driving can be finished detection simultaneously; 5, adjust laser instrument, can detect other gas.

Of particular note, adjust vehicle-mounted methane leakage detector, this device also can be used for the monitoring of other gas.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.

Claims

1. vehicle-mounted methane leakage monitor, comprise vehicle-mounted methane leakage detector, this vehicle-mounted methane leakage detector includes microprocessor, it is characterized in that: this vehicle-mounted methane leakage monitor also comprises microcontroller circuit, the GPS module, the GPRS module, display circuit and power circuit, wherein, described microcontroller circuit connects described GPS module to obtain real-time vehicle-mounted methane leakage detector positional information, described microcontroller circuit connects described GPRS module to realize telecommunication, described microcontroller circuit connects described display circuit so that show the testing result of vehicle-mounted methane leakage detector positional information and vehicle-mounted methane leakage detector, and described power circuit connects described microcontroller circuit respectively, described GPS module, described GPRS module and described display circuit are to provide working power; Described microcontroller circuit connects the microprocessor of described vehicle-mounted methane leakage detector by interface circuit.