CN101034073B - Gas detecting alarm system - Google Patents
Gas detecting alarm system Download PDFInfo
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- CN101034073B CN101034073B CN2006100569836A CN200610056983A CN101034073B CN 101034073 B CN101034073 B CN 101034073B CN 2006100569836 A CN2006100569836 A CN 2006100569836A CN 200610056983 A CN200610056983 A CN 200610056983A CN 101034073 B CN101034073 B CN 101034073B
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Abstract
This invention relates to a kind of gas detection warning system; mostly include mainframe and sensing module that can freely connect this mainframe. This sensing module possesses parameter checking module which has parameter of adjusting and setting gas concentration and alert. this sensing module send corresponding signal to mainframe after detecting gas concentration; mainframe compare gas concentration with signal record value, while exceed default will give out corresponding caution, and by this to solve existing technical deletion.
Description
Technical field
The present invention relates to a kind of detection alarm technology, relate in particular to a kind of warning system that is applied to detected gas.
Background technology
Usually can be used for detecting such as gases such as inflammable gas, poisonous gas or liquid gases by general gas detecting alarm system, and send corresponding alarm, and leak ease monitoring, area monitoring or personal protection whereby, relevant patented technology for example United States Patent (USP) announces the 3rd, 879, No. 717, United States Patent (USP) announce the 4th, 112, and No. 356, United States Patent (USP) announce the 4th, 175, No. 422, United States Patent (USP) announce the 5th, 280, and No. 273 etc. case discloses.
United States Patent (USP) announces the 3rd, a kind of Portable methane detection alarm of exposure system mainly is that design is battery-powered so that hand-held in 879, No. 717, and utilize the semi-conductor gas sensing component to detect methane concentration, when methane concentration reaches predetermined value, to give the alarm.United States Patent (USP) announces the 4th, 112, discloses a kind of semi-conductor gas testing circuit in No. 356, proposes the temperature-compensation circuit of simplifying.United States Patent (USP) announces the 4th, 175, then proposes a kind of detection alarm technology that comprises the electrothermal semiconductor subassembly in No. 422, to be used for the toxic gas of testing environment such as carbon monoxide.
Yet, the aforementioned patent technology all is combined in sensing component and circuit control single-chip in the same main frame, and all just finish correction and adjustment to the gas concentration detection alarm when the assembling finished product, so when using, reality can the aging signal output that influences take place because of the gas sensing assembly.Use all the year round, will depart from the original start value, the danger or the alarmed falsely puzzlement of wrong report that cause gas detecting alarm system not give the alarm because of gas sensing assembly catabiosis causes signal.Simultaneously, the gas sensing assembly is the key component of gas detecting alarm system, but aforementioned patent is combined in act in the main frame with sensing component, must scrap whole device and the higher disappearance of cost so have when the gas sensing component faults.
United States Patent (USP) announces the 5th, 280, then proposes a kind of toxic gas detection system in No. 273, battery and sensing component is located at is bonded to main frame in the casing again, provides removable battery and sensing component whereby, to solve the disappearance of aforementioned patent.
When using this patented technology, when changing sensing component, need to proofread and correct again and the parameter of setting such as the concentration alarm points, and the correction of this kind parameter must be to use professional calibration equipment to finish by the professional with setting, so cause the inconvenience of maintenance or replacing operation, and cause the cost of maintenance or replacing operation high relatively.Hence one can see that, and this patent is used inconvenience, remains to be improved part and still exist.
Therefore, a kind of gas detecting alarm system that provides for simple replacement of the sensing module external member to be designed is arranged, to promote accuracy, security, the ease of use that improves the gas detection alarm effectively and to reduce cost, to solve aforementioned prior art whereby the variety of issue that is caused.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of gas detecting alarm system of replaceable sensing module external member, with the accuracy and the security of lift gas detection alarm effectively.
Another object of the present invention is to provide a kind of gas detecting alarm system with ease of use.
A further object of the present invention is to provide a kind of cost-benefit gas detecting alarm system that has.
For realizing above-mentioned and other purpose, the invention provides a kind of gas detecting alarm system, this gas detecting alarm system comprises main frame and sensing module, this main frame has first Plug Division and alarm modules, this sensing module then has should first Plug Division connecting second Plug Division of this main frame freely with plug, electrically connect the sensing member of this second Plug Division, and module is established in the parameter school that electrically connects this sensing member, this parameter school is established module and is comprised the microprocessor that connects this second Plug Division, the signal acquisition control module that connects this microprocessor, the internal memory of built-in stored-gas concentration correction and alarm setting parameter, the signal comparing unit that connects this microprocessor and this signal acquisition control module, and this microprocessor of connection, the sensitivity of this signal acquisition control module and this signal comparing unit is adjusted circuit, establishing module by this parameter school proofreaies and correct and the parameter of setting gas concentration and alarm, and make this sensing member carry out the gas concentration detection to send respective signal to this main frame, send corresponding caution for this alarm modules.
Preferably, in the aforesaid gas detecting alarm system, this first Plug Division has USB (universal serial bus) (Universal Serial Bus, USB) interface.In a preferable enforcement aspect, this alarm modules comprises warning component and audio-frequency amplification driving circuit, and this warning component is flash of light audible alerts assembly, for example for have horse race lamp and hummer at least one of them.
In a preferable enforcement aspect, aforesaid main frame can select to comprise the communication module, the control module that electrically connects this first Plug Division that are used for long distance transmission, electrically connect this control module be used to calculate sensing module warranty period limit the Time Calculation module and supply power to the power supply circuit of this control module.This communication module can for example be a wire/wireless long distance transport communication module.In a preferable enforcement aspect, this control module can comprise testing circuit control single-chip; In another preferable enforcement aspect, then this control module can select to comprise CPU (central processing unit), the scratch-pad memory that supplies this CPU (central processing unit) access data that connects this first Plug Division, the system state display circuit that reaches this CPU (central processing unit) of connection.
Simultaneously, this second Plug Division has USB (universal serial bus).This sensing member can for example be semi-conductor gas sensing component or other equivalent elements.In a preferable enforcement aspect, module is established in this parameter school can comprise that built-in gas concentration is proofreaied and correct and the initialization circuit of alarm setting pre-set parameter and one of them of chip internal memory.
Because gas detecting alarm system provided by the present invention designs separable sensing module and main frame, and this sensing module is finished the setup parameter program in advance, so the gas sensing assembly surpasses pre-anti-aging warranty period or fault between in use, all there is the cresset indicating status of main frame to remind, only need change the sensing module of former factory adjustment, and needn't scrap whole device as prior art, and any user can directly plug use, do not need special professional technique.Therefore, compared to existing technologies, the present invention is the accuracy and the security of lift gas detection alarm effectively, and has cost benefit and ease of use, and then promotes its industrial utilization, has overcome the existing in prior technology disappearance relatively.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 shows the structure calcspar of gas detecting alarm system preferred embodiment of the present invention;
The thin portion calcspar of Fig. 2 displayed map 1 structure;
The detailed block diagram of Fig. 3 displayed map 2 structures;
Fig. 4 shows the process flow diagram of this gas detecting alarm system autodiagnosis; And
Fig. 5 shows the process flow diagram of this gas detecting alarm system action.
Wherein, Reference numeral:
1: 11: the first Plug Divisions of main frame
12: alarm modules 121: warning component
123: audio-frequency amplification driving circuit 13: communication module
14: control module 141: CPU (central processing unit)
143: scratch-pad memory 145: status display circuit
15: Time Calculation module 16: power supply circuit
3: 31: the second Plug Divisions of sensing module
33: sensing member 35: module is established in the parameter school
351: microprocessor 353: internal memory
355: signal acquisition control module 357: the signal comparing unit
359: sensitivity is adjusted circuit
Embodiment
As shown in Figure 1, show the structure calcspar of the preferred embodiment of gas detecting alarm system of the present invention, gas detecting alarm system as shown in the figure comprises that main frame 1 and plug connect the sensing module 3 of this main frame 1 freely.
As shown in Figure 2, this main frame 1 mainly has first Plug Division 11 and alarm modules 12.This first Plug Division 11 is to have USB (universal serial bus), but is not as limit.As shown in Figure 3, in the present embodiment, this alarm modules 12 can select to comprise warning component 121 and audio-frequency amplification driving circuit 123, this warning component 121 can be flash of light audible alerts assembly, and can be for example for having the horse race lamp of different colours and/or the hummer of different audio frequency, in order to show such as low concentration caution, high concentration caution, to reach other caution that is provided with on demand.
In the present embodiment, this main frame 11 can comprise the communication module 13, the control module 14 that electrically connects this first Plug Division 11 that are used for long distance transmission, electrically connects the Time Calculation module 15 of this control module 14 and supply power to the power supply circuit 16 of this control module 14.
This communication module 13 can for example be a wire/wireless long distance transport communication module, with for example this gas detecting alarm system of remote control and/or this gas detecting alarm system is connected to other system, for example safety system, medical system whereby.14 of this control modules can comprise that testing circuit control single-chip and/or other can carry out the equivalent elements of time counting and autodiagnosis; In the present embodiment, this control module 14 can comprise CPU (central processing unit) 141, the scratch-pad memory 143 that supplies these CPU (central processing unit) 141 access datas that connects this first Plug Division 11, the status display circuit 145 that reaches this CPU (central processing unit) 141 of connection, with serviceable life of detecting these sensing modules 3 by this control module 14 and user mode, and receive signal from this sensing module 3, and the alarm signal that sends correspondence after processing automatically is to this alarm modules 12.15 of this Time Calculation modules can be carried out time counting, to calculate the serviceable life of this sensing module 3.
As shown in Figure 2, this sensing module 3 comprise have to should first Plug Division 11 with plug connect freely this main frame 1 second Plug Division 31, electrically connect this second Plug Division 31 sensing member 33, and the parameter school that electrically connects this sensing member 33 establish module 35.This second Plug Division 31 has USB (universal serial bus), this sensing member 33 can be for example semi-conductor gas sensing component or other equivalent elements, and 35 of modules are established in this parameter school can select to comprise that built-in gas concentration is proofreaied and correct and initialization circuit, chip internal memory or other equivalent elements of alarm setting pre-set parameter.
In the present embodiment, this parameter school establish internal memory 353, the signal acquisition control module 355 that is connected this microprocessor 351 that module 35 can select to comprise the microprocessor 351 that connects this second Plug Division 31, built-in stored-gas concentration correction and alarm setting parameter, connect this microprocessor 351 and this signal acquisition control module 355 signal comparing unit 357, and is connected this microprocessor 351, this signal acquisition control module 355, with the sensitivity adjustment circuit 359 of this signal comparing unit 357.Simultaneously, make can utilize in advance when module 35 is established in this parameter school existing calibration equipment store specific gas concentration proofread and correct with the alarm setting parameter to this internal memory 353, to finish the parameter setting program; Thus, when changing this sensing member 33, can establish module 35 by this parameter school provides gas concentration to proofread and correct and the alarm setting parameter, and needn't be proofreaied and correct and be set by the user.Because the action principle of calibration equipment and structure, reach the parameter setting technology all belong to existing, so no longer give unnecessary details for literary composition at this.
It should be noted that can make this plug of second Plug Division 31 for having USB (universal serial bus) in the present embodiment, this first Plug Division 11 socket for having USB (universal serial bus) is so that this sensing module 3 can plug and connect this main frame 1 freely; Certainly, in other embodiments, also can make this first Plug Division 11 be plug, this second Plug Division 31 is a socket, or make this first Plug Division 11 can plug the structure that combines freely with this second Plug Division 31 for other or have the structure that other electrically connects interface, as long as can be for corresponding this sensing module 3 and this main frame 1 that electrically connect.In other words, though be that example explains with plug and socket in the present embodiment with USB (universal serial bus), usually know that the knowledgeable also can adopt the electrically structure of connecting interface of other equivalence in other embodiments but have in the affiliated technical field, but not be confined to present embodiment.
When wanting to use gas detecting alarm system of the present invention, but desire the concentration of detected gas in sensing member 33 sensitive context of this sensing module 3, and send corresponding signal to this main frame 1 by this second Plug Division 31, and this gas detecting alarm system for example can carry out autodiagnosis earlier before detected gas concentration, to guarantee system's normal operation.
For instance, in the present embodiment, the autodiagnosis flow process of this gas detecting alarm system can be as shown in Figure 4, this Time Calculation module 15 can be calculated the warranty period limit of this sensing module 3, whether this CPU (central processing unit) 141 can read record value service time in this scratch-pad memory 143, and comparison warranty period limit and record value service time, expire with the warranty period limit of judging this sensing module 3, then look this sensing module 3 if expire for defective, if not yet due this sensing module 3 of then looking is for qualified.When judging that this sensing module 3 is defective (denying), can for example show the cresset of changing this sensing module 3; When judging this sensing module 3 for qualified (being), whether the function that then can continue to test this sensing module 3 is normal.
If function is normally then looked this sensing module 3 for qualified, if undesired this sensing module 3 of then looking of function is for defective.When the function of judging this sensing module 3 is defective (denying), can for example show the cresset of changing this sensing module 3; When the function of judging this sensing module 3 is qualified (being), then can finishes the autodiagnosis program, and carry out the gas test program.
Certainly, can send alarm signal to this alarm modules 12 by this CPU (central processing unit) 141 in the present embodiment, change the information of this sensing module 3, inform that the user need change sensing module with automatic caution cresset or audio frequency; Perhaps, also can or surpass warranty period and prescribe a time limit, show the information that users need keep in repair or change by this status display circuit 145 and/or this alarm modules 12 in these sensing module 3 faults of autodiagnosis; Or, but also whether other assembly of autodiagnosis, module be qualified, shows the information that users need keep in repair or change by this status display circuit 145 and/or this alarm modules 12.
Simultaneously, in the present embodiment, the motion flow of this gas detecting alarm system can be as shown in Figure 5, by these CPU (central processing unit) 141 executive system autodiagnosis.When display system unusual (deny), display system need be handled unusually, can be by for example these status display circuit 145 notice these sensing modules 3 of replacing or other assembly, module; And when display system normal (being), then read the signal record value of this sensing module 3, will compare from the signal record value and the gas concentration default value of this sensing module 3 by this control module 14.If the signal record value from this sensing module 3 does not surpass gas concentration default value (denying), just by these CPU (central processing unit) 141 executive system autodiagnosis; If the signal record value from this sensing module 3 surpasses gas concentration default value (being), then activate this alarm modules 12 and circulate a notice of with this communication module 13 by this CPU (central processing unit) 141.
And, can set in this sensing module 3 for example the safety assurance time limit of sensing member 33 and functional test data in this main frame 1, and send respective signal to this CPU (central processing unit) 141 by this Time Calculation module 15 and/or status display circuit 145, remind the user should change this sensing module 3 with control.
Thus, just can use this main frame 1 for a long time, can effectively improve accuracy of gas detection alarm device and security simultaneously, to ensure the safety of user's lives and properties.
In addition, when test gas detecting alarm system of the present invention, but this gas detecting alarm system is inserted the test macro (not icon) of carbonomonoxide concentration control, the 110V power supply is plugged in activation, drive these sensing module 3 automatic removings after 60 seconds by this main frame 1, automatic pick-up signal and sensing module 3 built-in setting value comparisons enter detected state, and the cycle is continuous feedback loop test in a minute.
For instance, in the test of low concentration alarm action, can be after test macro feeds 150PPM concentration carbon monoxide, write down in this alarm modules 12 for example flashing the time of low concentration warning lamp, for example be respectively 58 seconds, 55 seconds, 51 seconds, 48 seconds and 46 seconds, the result meets test specification, presses reset button (reset) after carbon monoxide is removed in ventilation, and warning lamp flashes the warning indication to be stopped immediately.Control test is still kept 150PPM concentration carbon monoxide in test environment, press reset button then test period each minute still warning lamp flash warning, the remaining CO gas of display environment.In addition, in the test of high concentration alarm action, after test macro feeds 320PPM concentration carbon monoxide, for example writing down in this alarm modules 12, the high concentration warning lamp flashes and sounds the alarm the time, for example be respectively 55 seconds, 53 seconds, 52 seconds, 48 seconds and 45 seconds, the result meets test specification, and the communication function of system is sent alerting signal automatically.Ventilation is pressed reset button after removing carbon monoxide, and warning lamp flashes the warning indication to be stopped immediately with alarm song.Control test is still kept 320PPM concentration carbon monoxide in test environment, press reset button then test period each minute still warning lamp flash the warning and alarm song, the remaining high-concentration carbon monoxide gas of display environment.By above test result as can be known the present invention meet Safety Design.
Therefore, the present invention is when reality is used in application, can solve prior art and because of the gas sensing assembly the aging problem that makes signal depart from the original start value take place, and avoids the danger or the alarmed falsely puzzlement of wrong report that cause gas detecting alarm system not give the alarm.
Compared to prior art, gas detecting alarm system proposed by the invention, it mainly is the detachable sensing module of design in system, then built-in pre-set parameter in this sensing module, so can use main frame for a long time to save cost and to conform with the environmental protection notion, and the user can change this sensing module voluntarily to improve accuracy, uses simple and easyly, and has communications and connects for example function of safety system.So, not only can be applicable to family's gas and leak to detect and detect, also can be applicable on the various poison gas hazard detection that need the assembly life-span fiduciary level guarantee period of the industrial safety of factory with carbon monoxide poison gas.So gas detecting alarm system provided by the present invention has solved the existing in prior technology problem relatively.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (12)
1. a gas detecting alarm system is characterized in that, comprising:
Main frame has first Plug Division and alarm modules; And
Sensing module, have should first Plug Division connecting second Plug Division of this main frame freely with plug, electrically connect the sensing member of this second Plug Division, and module is established in the parameter school that electrically connects this sensing member, this parameter school is established module and is comprised the microprocessor that connects this second Plug Division, the signal acquisition control module that connects this microprocessor, the internal memory of built-in stored-gas concentration correction and alarm setting parameter, the signal comparing unit that connects this microprocessor and this signal acquisition control module, and this microprocessor of connection, the sensitivity of this signal acquisition control module and this signal comparing unit is adjusted circuit, establishing module by this parameter school proofreaies and correct and the parameter of setting gas concentration and alarm, and make this sensing member carry out the gas concentration detection to send respective signal to this main frame, send corresponding caution for this alarm modules.
2. gas detecting alarm system according to claim 1 is characterized in that, this first Plug Division has USB (universal serial bus).
3. gas detecting alarm system according to claim 1 is characterized in that, this alarm modules comprises warning component and audio-frequency amplification driving circuit.
4. gas detecting alarm system according to claim 3 is characterized in that, this warning component is flash of light audible alerts assembly.
5. gas detecting alarm system according to claim 3 is characterized in that, this warning component have horse race lamp and hummer at least one of them.
6. gas detecting alarm system according to claim 1, it is characterized in that, this main frame also comprises the communication module, the control module that electrically connects this first Plug Division that are used for long distance transmission, electrically connect this control module be used to calculate sensing module warranty period limit the Time Calculation module and supply power to the power supply circuit of this control module.
7. gas detecting alarm system according to claim 6 is characterized in that, this communication module is a wire/wireless long distance transport communication module.
8. gas detecting alarm system according to claim 6 is characterized in that, this control module comprises testing circuit control single-chip.
9. gas detecting alarm system according to claim 6, it is characterized in that this control module comprises CPU (central processing unit), the scratch-pad memory that supplies this CPU (central processing unit) access data that connects this first Plug Division, the status display circuit that reaches this CPU (central processing unit) of connection.
10. gas detecting alarm system according to claim 1 is characterized in that, this second Plug Division has USB (universal serial bus).
11. gas detecting alarm system according to claim 1 is characterized in that, this sensing member is the semi-conductor gas sensing component.
12. gas detecting alarm system according to claim 1 is characterized in that, this parameter school is established module and is comprised that built-in gas concentration is proofreaied and correct and the initialization circuit of alarm setting pre-set parameter and one of them of chip internal memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100569836A CN101034073B (en) | 2006-03-07 | 2006-03-07 | Gas detecting alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100569836A CN101034073B (en) | 2006-03-07 | 2006-03-07 | Gas detecting alarm system |
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| Publication Number | Publication Date |
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| CN101034073A CN101034073A (en) | 2007-09-12 |
| CN101034073B true CN101034073B (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006100569836A Expired - Fee Related CN101034073B (en) | 2006-03-07 | 2006-03-07 | Gas detecting alarm system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101271064B (en) * | 2008-05-13 | 2010-06-02 | 张哲民 | Gas monitoring alarm device based on gas absorption frequency stabilized laser |
Citations (5)
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|---|---|---|---|---|
| US3879717A (en) * | 1974-06-19 | 1975-04-22 | K F Ind Inc | Portable methane monitor and alarm system |
| US5280273A (en) * | 1992-12-21 | 1994-01-18 | Goldstein Mark K | Toxic gas detector system having convenient battery and sensor replacement |
| CN1338628A (en) * | 2000-08-10 | 2002-03-06 | 同济大学 | Monitor and alarm system for multi-component gas |
| CN1373360A (en) * | 2002-04-10 | 2002-10-09 | 陈利平 | Portable combined intelligent gas detecting and alarming instrument and its detecting method |
| CN2533467Y (en) * | 2002-04-15 | 2003-01-29 | 北京科力赛克科技有限公司 | Single-point gas testing alarm instrument |
-
2006
- 2006-03-07 CN CN2006100569836A patent/CN101034073B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3879717A (en) * | 1974-06-19 | 1975-04-22 | K F Ind Inc | Portable methane monitor and alarm system |
| US5280273A (en) * | 1992-12-21 | 1994-01-18 | Goldstein Mark K | Toxic gas detector system having convenient battery and sensor replacement |
| CN1338628A (en) * | 2000-08-10 | 2002-03-06 | 同济大学 | Monitor and alarm system for multi-component gas |
| CN1373360A (en) * | 2002-04-10 | 2002-10-09 | 陈利平 | Portable combined intelligent gas detecting and alarming instrument and its detecting method |
| CN2533467Y (en) * | 2002-04-15 | 2003-01-29 | 北京科力赛克科技有限公司 | Single-point gas testing alarm instrument |
Non-Patent Citations (2)
| Title |
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| 王维军.可燃气体检测报警系统及其应用.安装 2.2001,(2),23，24. |
| 王维军.可燃气体检测报警系统及其应用.安装 2.2001,(2),23，24. * |
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