CN101510347A - Microcomputer gas alarm - Google Patents
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- CN101510347A CN101510347A CNA2009100678396A CN200910067839A CN101510347A CN 101510347 A CN101510347 A CN 101510347A CN A2009100678396 A CNA2009100678396 A CN A2009100678396A CN 200910067839 A CN200910067839 A CN 200910067839A CN 101510347 A CN101510347 A CN 101510347A
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Abstract
The invention discloses a microcomputer gas alarm which comprises a first sensor, a second sensor, a self-checking circuit, an analog switch, a comparison circuit, a microcomputer singlechip and an alarm device. The microcomputer gas alarm can monitor the gas concentration in the environment in real time, and alarms when the gas concentration exceeds the standard. The cost is low, and the safety for gas usage is ensured. The microcomputer gas alarm is favorable to wide popularization and application, and has great significance to the production practice. In addition, the microcomputer gas alarm can also adopt a remote speech terminal, as for a user having a larger use environment, the alarm with the remote speech terminal is safer and more convenient, furthermore, the self-checking circuit can monitor the circuit of the alarm in real time, once the circuit is damaged, a warning is sent to the user as an indication, and regular manual inspection is not needed.
Description
Technical field
The present invention relates to the gas monitor and control technical field, particularly relate to a kind of microcomputer gas alarm.
Background technology
Gas leak detector in the market roughly comprises: ceiling type gas leak detector, household fuel gas alarm, online carbon monoxide alarm (gas leak detector).
Wherein, the ceiling type gas leak detector can be used for responding to gases such as coal gas, rock gas, liquefied petroleum gas (LPG), can use separately, also can with the control system networking, still can connect exhaust fan, solenoid valve, carry out sound and light alarm, can automatically reset, have characteristics flexible for installation.
And the household fuel gas alarm can be used for responding to gases such as coal gas, rock gas, and long bright if alarm is in red light, loudspeaker send yowl sound, signal output open circuit state, and represent that alarm had lost efficacy this moment, should in time change alarm.This alarm must should carry out functional check every January, generally sprays into gas with the air hole of lighter by alarm, and whether observe has sound and light alarm.
For online carbon monoxide alarm, it is fixed CO gas detector, mainly is made up of controlling alarm main frame and Carbon Monoxide Detection probe.The controlling alarm main frame has switching value output and optional communication interface, can external audible-visual annunciator or start-up control equipment, also can with upper machine communication.This alarm is mainly used in the commercial production field.
Above several frequently seen gas leak detector mainly have the problem of the following aspects:
(1) gas leak detector lost efficacy easily, and the user does not generally know.Present gas leak detector all is to rely on household electrical source to power to move basically, in case power lead goes wrong in the family, alarm will lose the function that itself has and become honor ornaments, and owing to lack prompting, the alarm owner that do not work can not perceive yet, and so just is easy to cause the generation of disaster.
Alarm itself is to be made of circuit, and will inevitably break down or damage through use after a while circuit inside, in case the alarm internal fault will quit work, the phenomenon that can cause alarm not report to the police so again takes place.So all must once check every month, and the user usually forgets inspection owing to reason such as being busy with one's work, so that alarm lost efficacy still still unaware to gas leak detector.
In view of maximum many mistakes 5 years tenure of use of gas leak detector, few to 2 years, most of users are still using to after date.Do not know the serviceable life of oneself used gas leak detector through the consumer of relevant department's investigation discovery 93%, this shows, the consumer is very limited to the maintenance consciousness of alarm, and alarm damage in a single day just causes forfeiture warning effect, and owner can't discover the big major defect that this phenomenon is current alarm.
(2) quality does not pass a test.The fuel gas alarm sensor that quality does not pass a test, performance just descends about general half a year, thus the security of forfeiture alarm.Quality does not pass a test mainly to show as and fails to report and report by mistake phenomenon and happen occasionally, and wrong report has comprised that again product wrong report and user misoperation report by mistake.Though the domestic households alarm is various in style, the product wrong report is too many; And external imported product costs an arm and a leg, and complex operation causes wrong report probably because of misoperation of users.And fail to report is a significant problem, and warning system is to maintain an army for a thousand days to be used in product for the moment, and use back battery in a year or so has electricity or not, and the user can't know that running check is too loaded down with trivial details again, causes easily and fails to report.
(3) sensitivity is too high.The precision of alarm is a significant problem.As alarm, be not exactly its too high sensitivity more by one of generally accepted reason of people.Understand through the applicant, the alarm that some companies produce be even the slight gas that lighter produces when extinguishing all can make alarm sound, too Ling Min alarm can be with people unnecessary trouble.
(4) portioned product costs an arm and a leg, and is unsuitable for family and uses.Some producer is in order to adapt to the development of modern high technology technology, for this simple gas leak detector has also been installed the high-tech chip, like this, alarm just can with handset binding, in case occur accident to leak the coal gas in the family, alarm will be dialed mobile phone automatically, informs owner, allows owner in time go home to handle accident to leak the coal gas and the unlikely serious economy loss more that causes.Yet, the high-tech chip that comes to this slight just makes the alarm not low price hundreds of piece that quickly risen originally, making is not originally just become the commodity that the common salary consumer of class is acclaimed as the acme of perfection by the alarm that everybody accepted, and more can not obtain popularizing on a large scale and using.And such high-tech performance brings for the user is not to be the safety of one of percentage hundred and relieved.The fuel gas alarm significant feature is still in order to ensure human the most valuable wealth---life in fact, with gas leak detector and the handset binding that is in outdoor owner, leave home far away in case owner is in the geographic position, even receive that alerting signal is also of no avail, therefore this high-tech The Application of Technology does not play expected effect, seems that naturally some is unnecessary.
(5) only send chimes of doom in the infield.At present the chimes of doom of alarm is generally all bigger more ear-piercing, certainly in order to allow the owner in the dark house receive signal, alerting signal blow a whistle sound must be more ear-piercing., along with the development of modern society, the continuous lifting of human average living space, villa and larger area house have obtained a lot of civic and have liked.Bigger for living space, be in owner from alarm house far away, even how ear-piercing the cry of alarm more also may not be certain to pass heavy obstruct and arrive in owner's ear in the dark residential house, on the contrary, the owner of other houses will be subjected to interference more or less near alarm.It is this that both to have upset the type of alarm whether neighbours play effect also be a big disadvantage of current alarm.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of microcomputer gas alarm, can monitor the gas concentration of environment of living in real time, and when exceeding standard, sends gas concentration warning, with low cost, guaranteed the security that combustion gas is used, helped applying widely, be of great practical significance.
For this reason, the invention provides a kind of microcomputer gas alarm, comprising:
The first sensor and second sensor are used to respond to inflammable gas;
Self-checking circuit is used for the circuit of whole alarm is detected, and knows the duty of whole alarm circuit;
Analog switch is used for the steering order according to microcomputer singlechip, and first sensor, second sensor and self-checking circuit are communicated with comparator circuit respectively at times;
Comparator circuit is used for by respectively first sensor, second sensor and self-checking circuit being compared, and knows the duty of first sensor, second sensor and self-checking circuit and exports the result to microcomputer singlechip;
Microcomputer singlechip, being used to control first sensor, second sensor and self-checking circuit is communicated with comparator circuit respectively at times, and according to the duty of first sensor, second sensor and self-checking circuit, send dissimilar alerting signals at times respectively to warning device, trigger warning device and report to the police;
Warning device is used for reporting to the police after receiving alerting signal.
Preferably, the first sensor and second sensor are the combustion gas probe.
Preferably, described self-checking circuit is two potentiometers that are in parallel with the first sensor and second sensor.
Preferably, described analog switch is four bidirectional analog switches.
Preferably, described microcomputer singlechip is sent the combustion gas alerting signal that exceeds standard when the duty of first sensor, second sensor is all unusual; When described microcomputer singlechip has only one duty unusual when first sensor, second sensor, send the instrument failure alerting signal; Described microcomputer singlechip is sent the instrument failure alerting signal when self-checking circuit is unusual.
Preferably, described warning device comprises: onsite alarming device and remote speech terminating machine, and wherein, described onsite alarming device is installed on the place that first sensor, second sensor are installed, and after receiving alerting signal, carries out sound and light alarm;
Described remote speech terminating machine carries out long distance wireless with microcomputer singlechip and is connected, and after receiving wireless alarm signal, carries out audio alert.
Preferably, comprise between described microcomputer singlechip and the remote speech terminating machine: scrambler and wireless transmit head, wherein, described scrambler is connected with microcomputer singlechip, wireless transmit head, be used for the alerting signal of microcomputer singlechip is encoded, and send the wireless transmit head to;
Described wireless transmit head is used for the alerting signal behind the coding is sent to the remote speech terminating machine by wireless mode.
Preferably, the wireless receiving head is used to receive alerting signal wireless transmit institute's wireless transmission, the process coding, and sends demoder to;
Demoder is used for the alerting signal of process coding is decoded, and sends to long-range microcomputer singlechip;
Long-range microcomputer singlechip is used to judge the type of alerting signal, and the control voice module is reported to the police accordingly;
Voice module according to the particular type of alerting signal, carries out corresponding audio alert.
Preferably, described alerting signal comprises combustion gas exceed standard two types of alerting signal and instrument failure alerting signals.
By above technical scheme provided by the invention as seen, compared with prior art, microcomputer gas alarm provided by the invention at first damages at the short of electricity of alarm power supply and internal circuit and causes the phenomenon of alarm cisco unity malfunction.The present invention has been alarm designs a self-checking circuit, in a single day alarm comes into operation, self-checking circuit can be tested to the alarm internal circuit by self-timing, in case break down or the short of electricity phenomenon arranged in inside, pilot lamp will be pointed out owner, simultaneously in order to make alerting signal in time send owner to, alarm designs true man's articulatory systems, in case break down in inside, alarm also can break down with the form of voice prompting master alarm device inside etc.This alarm not only is equipped with the self-checking circuit of the integrated circuit of detection alarm device own, also specialized designs combustion gas probe self-checking function, so both guaranteed the operate as normal of alarm also to have reduced the unnecessary work that user's timing is safeguarded alarm.To manually transfer automatically the security that has improved alarm so greatly to.
Secondly, at alarm sensitive issue too, the present invention just can adjust the sensitivity of alarm in this kind of alarm of design, its in the finite concentration scope (this concentration reaches the harm humans effect) reported to the police, can not cause Yin Sisi gas will cause the induction of alarm and warning carelessly, for the user brings unnecessary trouble.
In addition, in order to obtain popular popularizing, consider the continuous increase of present human living space, villa, large tracts of land residence have obtained everybody favor.The present invention also specially has designed split type alarm (being the remote speech terminating machine) for those are in the room that the house is in, the alarm equipment alarm the tinkle of bells that is installed in the kitchen like this can be adjusted fully and need ear-piercingly too in a shrill voice within the specific limits and not, causes the unnecessary puzzlement of user.Split type alarm adopts true man's pronunciation, and gas alarm and alarm self fault are distinguished, make the user in use more safely, feel more relieved.
Also be most important at last, the cost of alarm of the present invention can be controlled between tens yuan, therefore can obtain most of resident's acceptance fully.Like this, this kind of alarm not only has the warning function of general alarm, also possess unique self-checking function, the hommization more of this alarm of what is more important, practical more, also be more prone to be accepted by broad masses of the people, have great market application foreground.
Description of drawings
Fig. 1, Fig. 2 are respectively the structural representations of a kind of microcomputer gas alarm provided by the invention;
Fig. 3 is the structured flowchart of a kind of microcomputer gas alarm medium-long range voice terminal machine provided by the invention;
Fig. 4 is the circuit connection diagram between first sensor, second sensor, analog switch, self-checking circuit and the comparator circuit in a kind of microcomputer gas alarm provided by the invention;
Fig. 5 is the electrical block diagram of scrambler in a kind of microcomputer gas alarm provided by the invention;
Fig. 6 is the circuit connection diagram of microcomputer singlechip and house dog in a kind of microcomputer gas alarm provided by the invention;
Fig. 7 is the control circuit synoptic diagram of onsite alarming device and wireless transmit head in a kind of microcomputer gas alarm provided by the invention;
Fig. 8 is the circuit connection diagram of demoder and wireless receiving head in the remote speech terminating machine provided by the invention;
Fig. 9 is the circuit connection diagram of microcomputer singlechip and house dog in the remote speech terminating machine provided by the invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of a kind of microcomputer gas alarm provided by the invention, referring to Fig. 1, a kind of microcomputer gas alarm provided by the invention comprises: first sensor 101, second sensor 102, self-checking circuit 103, analog switch 104, comparator circuit 105, microcomputer singlechip 106 and warning device 107, wherein
The first sensor 101 and second sensor 102 are connected with analog switch 104 respectively, are used to respond to inflammable gas;
Need to prove that the first sensor 101 and second sensor 102 are combustion gas probes, when their environment gas concentrations of living in exceeded standard, output potential increased.
Self-checking circuit 103 is connected with analog switch 104, is used for the circuit of whole alarm is detected, and knows the duty of whole alarm circuit;
In the present invention, described self-checking circuit 103 detects whole alarm circuit by the principle of work of analog sensor, when (circuit calculates bad or sensitivity descends) broken down in the operation of alarm circuit internal system, sends circuit immediately and calculates bad signal.
On the specific implementation, described self-checking circuit 103 is two potentiometers that are in parallel with the first sensor 101 and second sensor 102.
On the specific implementation, described comparator circuit 105 is used for knowing the duty (knowing promptly whether they occur unusually) of first sensor 101, second sensor 102 and self-checking circuit 103 by comparing the input voltage of first sensor 101, second sensor 102 and self-checking circuit 103 and the difference situation of change of its threshold level at times respectively.
Need to prove, comparator circuit is the circuit that an analog voltage signal is compared with a reference voltage, the two-way of a comparator circuit is input as simulating signal, output then is binary signal, when the difference of input voltage increases or reduces, its output keeps constant, therefore, also it can be used as 1 A/D converter.
Therefore, when first sensor 101 with second sensor, 102 environment gas concentrations of living in exceed standard or during its damage (occur unusual), their output potential increases, it is big that the difference of the voltage that is input to comparator circuit of two sensors and the threshold level of comparator circuit becomes, thereby this moment, the output terminal of comparator circuit was exported a binary one all the time, be overcome binary zero of all normal back comparator circuit outputs up to abnormal conditions.
In addition, break down when self-checking circuit 103 and occur when unusual, the output potential of self-checking circuit changes, make the difference of threshold level of the voltage that is input to comparator circuit of self-checking circuit and comparator circuit number, thereby also make the output terminal of comparator circuit export a binary one all the time, be overcome binary zero of all normal back comparator circuit outputs up to abnormal conditions.
Need to prove that described alerting signal comprises: combustion gas exceed standard two types of alerting signal and instrument failure alerting signals.
Be specially: microcomputer singlechip 106 is carried out the combustion gas warning that exceeds standard this moment when the duty of first sensor 101, second sensor 102 is all unusual, sends the combustion gas alerting signal that exceeds standard;
When microcomputer singlechip 106 has only one duty unusual when first sensor 101, second sensor 102, illustrate that unusual sensor (combustion gas probe) takes place to be damaged, carry out the instrument failure warning this moment, send the instrument failure alerting signal;
Referring to Fig. 1, in the present invention, described warning device 107 comprises: onsite alarming device 1071 and remote speech terminating machine 1072, wherein,
Described onsite alarming device 1071 is installed on the place that first sensor 101, second sensor 102 are installed, and after receiving alerting signal, carries out sound and light alarm;
Described remote speech terminating machine 1072 carries out long distance wireless with microcomputer singlechip 106 and is connected, and after receiving wireless alarm signal, carries out audio alert.
Need to prove, referring to Fig. 2, comprise between described microcomputer singlechip 106 and the remote speech terminating machine 1072: scrambler 108 and wireless transmit 109, wherein, described scrambler 108 and microcomputer singlechip 106, wireless transmit 109 is connected, be used for the alerting signal of microcomputer singlechip 106 is encoded, and send wireless transmit 109 to;
Described wireless transmit 109 is used for the alerting signal behind the coding is sent to remote speech terminating machine 1072 by wireless mode.
Fig. 3 is the structured flowchart of a kind of microcomputer gas alarm medium-long range voice terminal machine provided by the invention, and referring to Fig. 3, in the present invention, described remote speech terminating machine 1072 comprises:
Long-range microcomputer singlechip 10723 is connected with demoder 10722, is used to judge the type of alerting signal, and control voice module 10724 is reported to the police accordingly;
As mentioned above, described alerting signal comprises: combustion gas exceed standard two types of alerting signal and instrument failure alerting signals.
When being combustion gas when exceeding standard alerting signal, described voice module 10724 voice broadcasts " combustion gas exceeds standard ";
When being the instrument failure signal, described voice module 10724 voice broadcasts " instrument failure ".
Below in conjunction with specific embodiment each composition of microcomputer gas alarm of the present invention is elaborated.
Referring to Fig. 4, on the specific implementation, analog switch 104 is four bidirectional analog switches 4066, first sensor MQ1 is by the 3rd pin input of analog switch 4066, and export from the 4th pin, as control end and connect the P3.5 mouth of microcomputer singlechip 2051, control the break-make of MQ1 with the 5th pin by the state of control P3.5 mouth.When P3.5=1 (being noble potential), the 3rd pin of analog switch 4066 and the 4th pin are connected, thereby MQ1 connects; When P3.5=0 (being electronegative potential), the 4th pin is high impedance, and MQ1 disconnects.
The second sensor MQ2 imports by the 2nd pin of analog switch 4066, and from the output of the 1st pin, as control end, connects the P3.7 mouth of single-chip microcomputer with the 13rd pin, controls the break-make of MQ2 by the state of control P3.7 mouth.When P3.7=1, the 2nd pin of analog switch 4066 and the 1st pin are connected, thereby MQ2 connects; When P3.7=0, the 1st pin is high impedance, and MQ2 disconnects.
Referring to Fig. 4, two potentiometer W1 and the W2 of described self-checking circuit 103 for being in parallel with the first sensor 101 and second sensor 102.For example, constitute self-checking circuit by resistance R 1 and potentiometer W2.The output of this self-checking circuit is by the 10th pin input of analog switch 4066, and export from the 11st pin, connect the P3.4 pin of single-chip microcomputer as control end with the 12nd pin, its effect is with the P3.5 mouth, and promptly when P3.4=1, the 10th pin of analog switch 4066 and the 11st pin are connected, thereby self-checking circuit is connected, when P3.4=0, the 11st pin is high impedance, and self-checking circuit disconnects.
As shown in Figure 4, first sensor MQ1, the second sensor MQ2 and self-checking circuit are connected on respectively on three analog switches of four bidirectional analog switches 4066, and the output of these three analog switches connects together, and links the input end of comparator circuit 358 again.At synchronization, make these three analog switches have only one to open by P3.5, the P3.7 of control microcomputer singlechip and the state of P3.4 mouth, and in addition two close, only choose an input signal in MQ1, MQ2 or the self-checking circuit to be sent to comparator circuit 358 this moment.The P3.3 mouth of the output termination microcomputer singlechip of comparator circuit 358.When P3.3=1, show MQ1, the MQ2 of current comparison or self-checking circuit unusual (as combustion gas exceed standard, the pop one's head in damage or the system failure).When P3.3=0, showing the MQ1, the MQ2 that are compared or self-checking circuit, unusual all are normal.
In the present invention, by the thresholding of resistance R 2, R3 and potentiometer W3 decision comparator circuit 358, by rotational potentiometer W3, the height of scalable threshold level, and the height of threshold level has determined the sensitivity of alarm of the present invention.
Referring to Fig. 5, among Fig. 5 145026 is scrambler, its the 7th pin connects the P1.7 mouth of microcomputer singlechip, input end as scrambler, its the 15th pin is the output terminal of scrambler, is used to connect the wireless transmit head, gives the remote speech terminating machine to send the u signal, the 14th pin connects the P1.6 mouth of microcomputer singlechip as the scrambler control input end.When P1.6=0, encoder chip is sent pulse train from 15 human hair combing wastes, and its pulse code stipulates because of the value of P1.7 is different, and when P1.7=0, the pulse train of sending from 15 human hair combing wastes of scrambler is the alarm coding; When P1.7=1, the pulse train of sending from 15 human hair combing wastes of scrambler is malfunction coding.
Among Fig. 6 2051 is microcomputer singlechip, and it is the controller of total system, and its control whole system operation process is as follows:
After system power-up, it enters touring testing process.At first the state of timesharing control P3.5, P3.7 and P3.4 makes the timesharing of MQ1, MQ2 and self-checking circuit order insert comparator circuit, and then the state of order timesharing inquiry P3.3.When P3.3 is high level, at first judge it is to report to the police or fault.If MQ1 and MQ2 be unusual (promptly break down and can not work) all, then be to report to the police.This moment, microcomputer singlechip made P1.6=0, P1.7=0, so the onsite alarming device begins sound and light alarm and alerting signal wireless transmit.Delayed time 1 minute, and made P1.6=1, P1.7=1, stop to report to the police and wireless transmit, and then probe and self-checking circuit are gone the rounds to detect.If self-checking circuit unusual (be its internal circuit break down or damage) then carries out fault alarm, process is with reporting to the police, but makes P1.7 be always 1.This probe damages if MQ1 and MQ2 have only a declaration of exception, carries out fault alarm.
Shown in Figure 6 5045 is house dog, and its effect is to prevent program fleet, plays anti-interference effect, and P3.2 is 5045 reset signal.
Among Fig. 7 9013 and 9012 and R4, R5, R6, R7 constitute the control circuit of onsite alarming device (being sound light alarming circuit) and wireless transmit head.When P1.6=0, sound and light alarm and wireless transmit head power up, and the onsite alarming device carried out sound and light alarm and carried out the wireless transmit of alerting signal this moment.When P1.6=1, alarm and emitting head outage, the two all quits work.
Referring to Fig. 8, Fig. 8 is the circuit connection diagram of demoder and wireless receiving head in the remote speech terminating machine provided by the invention, 145027 is demoder, be connected with 11 pin by 15 pin with long-range microcomputer singlechip, wherein, 11 pin are demoder output, represent during its high level that demoder has output, and low level is represented the demoder no-output.Having under the condition of demoder output, when 15 pin are high level, be expressed as the combustion gas warning that exceeds standard; When 15 pin are low level, expression instrument failure warning (11 pin are used for describing 15 pin no-output).The 9th pin is the input pin of decoded pulse train, and the output pin of wireless receiving head is by its input decoder.Microcomputer singlechip 2051 makes the P1.6 mouth connect 145027 the 11st pin as the controller of remote speech terminating machine, and the P1.7 mouth connects demoder 15 pin, and the P1.5 mouth connects speech chip playback control end, and the P1.4 mouth connects the segmentation selecting side.
Referring to Fig. 9,5045 is house dog, and its reset signal connects the P3.5 mouth.After system powered on, the course of work was as follows:
In conjunction with Fig. 8, single-chip microcomputer 2051 is at first checked the state of P1.6.If P1.6=1 has illustrated that alerting signal transmits, reexamine the state of P1.7 mouth; If P1.7=1 makes P1.5=0, P1.4=1, the control speech chip is play " combustion gas exceeds standard "; If P1.7=0 makes P1.5=0, P1.4=0, play " instrument failure ".The each broadcast 1 minute makes P1.5=1, stops automatically, and echo check P1.6 mouth state repeats above process, infinite loop then.
In sum, compared with prior art, microcomputer gas alarm provided by the invention at first damages at the short of electricity of alarm power supply and internal circuit and causes the phenomenon of alarm cisco unity malfunction.The present invention has been alarm designs a self-checking circuit, in a single day alarm comes into operation, self-checking circuit can be tested to the alarm internal circuit by self-timing, in case break down or the short of electricity phenomenon arranged in inside, pilot lamp will be pointed out owner, simultaneously in order to make alerting signal in time send owner to, alarm designs true man's articulatory systems, in case break down in inside, alarm also can break down with the form of voice prompting master alarm device inside etc.This alarm not only is equipped with the self-checking circuit of the integrated circuit of detection alarm device own, also specialized designs combustion gas probe self-checking function, so both guaranteed the operate as normal of alarm also to have reduced the unnecessary work that user's timing is safeguarded alarm.To manually transfer automatically the security that has improved alarm so greatly to.
Secondly, at alarm sensitive issue too, the present invention just can adjust the sensitivity of alarm in this kind of alarm of design, its in the finite concentration scope (this concentration reaches the harm humans effect) reported to the police, can not cause Yin Sisi gas will cause the induction of alarm and warning carelessly, for the user brings unnecessary trouble.
In addition, in order to obtain popular popularizing, consider the continuous increase of present human living space, villa, large tracts of land residence have obtained everybody favor.The present invention also specially has designed split type alarm (being the remote speech terminating machine) for those are in the room that the house is in, the alarm equipment alarm the tinkle of bells that is installed in the kitchen like this can be adjusted fully and need ear-piercingly too in a shrill voice within the specific limits and not, causes the unnecessary puzzlement of user.Split type alarm adopts true man's pronunciation, and gas alarm and alarm self fault are distinguished, make the user in use more safely, feel more relieved.
Also be most important at last, the cost control of alarm of the present invention can obtain most of resident's acceptance fully between tens yuan.
Like this, this kind of alarm not only has the warning function of general alarm, also possesses unique self-checking function, the hommization more of this alarm of what is more important, practical more, also be more prone to be accepted by broad masses of the people.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1, a kind of microcomputer gas alarm is characterized in that, comprising:
The first sensor and second sensor are used to respond to inflammable gas; Self-checking circuit is used for the circuit of whole alarm is detected, and knows the duty of whole alarm circuit;
Analog switch is used for the steering order according to microcomputer singlechip, and first sensor, second sensor and self-checking circuit are communicated with comparator circuit respectively at times;
Comparator circuit is used for by respectively first sensor, second sensor and self-checking circuit being compared, and knows the duty of first sensor, second sensor and self-checking circuit and exports the result to microcomputer singlechip;
Microcomputer singlechip, being used to control first sensor, second sensor and self-checking circuit is communicated with comparator circuit respectively at times, and according to the duty of first sensor, second sensor and self-checking circuit, send dissimilar alerting signals at times respectively to warning device, trigger warning device and report to the police;
Warning device is used for reporting to the police after receiving alerting signal.
2, microcomputer gas alarm as claimed in claim 1 is characterized in that, the first sensor and second sensor are the combustion gas probe.
3, microcomputer gas alarm as claimed in claim 1 is characterized in that, described self-checking circuit is two potentiometers that are in parallel with the first sensor and second sensor.
4, microcomputer gas alarm as claimed in claim 1 is characterized in that, described analog switch is four bidirectional analog switches.
5, microcomputer gas alarm as claimed in claim 1 is characterized in that, described microcomputer singlechip is sent the combustion gas alerting signal that exceeds standard when the duty of first sensor, second sensor is all unusual; When described microcomputer singlechip has only one duty unusual when first sensor, second sensor, send the instrument failure alerting signal; Described microcomputer singlechip is sent the instrument failure alerting signal when self-checking circuit is unusual.
6, microcomputer gas alarm as claimed in claim 1, it is characterized in that, described warning device comprises: onsite alarming device and remote speech terminating machine, wherein, described onsite alarming device, be installed on the place that first sensor, second sensor are installed, after receiving alerting signal, carry out sound and light alarm;
Described remote speech terminating machine carries out long distance wireless with microcomputer singlechip and is connected, and after receiving wireless alarm signal, carries out audio alert.
7, microcomputer gas alarm as claimed in claim 6, it is characterized in that, comprise between described microcomputer singlechip and the remote speech terminating machine: scrambler and wireless transmit head, wherein, described scrambler is connected with microcomputer singlechip, wireless transmit head, be used for the alerting signal of microcomputer singlechip is encoded, and send the wireless transmit head to;
Described wireless transmit head is used for the alerting signal behind the coding is sent to the remote speech terminating machine by wireless mode.
8, microcomputer gas alarm as claimed in claim 7 is characterized in that, the wireless receiving head is used to receive alerting signal wireless transmit institute's wireless transmission, the process coding, and sends demoder to;
Demoder is used for the alerting signal of process coding is decoded, and sends to long-range microcomputer singlechip;
Long-range microcomputer singlechip is used to judge the type of alerting signal, and the control voice module is reported to the police accordingly;
Voice module according to the particular type of alerting signal, carries out corresponding audio alert.
9, microcomputer gas alarm as claimed in claim 1 is characterized in that, described alerting signal comprises combustion gas exceed standard two types of alerting signal and instrument failure alerting signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100678396A CN101510347A (en) | 2009-02-11 | 2009-02-11 | Microcomputer gas alarm |
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|---|---|---|---|
| CNA2009100678396A CN101510347A (en) | 2009-02-11 | 2009-02-11 | Microcomputer gas alarm |
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| CN101510347A true CN101510347A (en) | 2009-08-19 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208127A (en) * | 2010-12-28 | 2011-10-05 | 邓韶昌 | Intrusion alarm system with self-checking function |
| CN101996475B (en) * | 2009-08-24 | 2012-06-27 | 旭达电脑（昆山）有限公司 | Gas leak self-protection communication device and method |
| CN102903202A (en) * | 2012-09-25 | 2013-01-30 | 苏州佳世达电通有限公司 | Automatic warning device and automatic warning method |
| CN103366476A (en) * | 2013-07-03 | 2013-10-23 | 郑玉龙 | Wireless remote control 626 alarm |
| CN104240451A (en) * | 2014-09-04 | 2014-12-24 | 南通北城科技创业管理有限公司 | Vehicle dangerous material detecting system |
| CN105182885A (en) * | 2015-10-27 | 2015-12-23 | 江苏信果物资有限公司 | Communication system for remotely monitoring material safety state by using intelligent terminal |
| CN105894758A (en) * | 2014-10-27 | 2016-08-24 | 熊清远 | Displacement monitoring alarm device based on Internet of things application |
| WO2017035928A1 (en) * | 2015-08-28 | 2017-03-09 | 广东奥迪威传感科技股份有限公司 | Intelligent alarm system and method |
| CN106781296A (en) * | 2016-11-24 | 2017-05-31 | 北京长城金点物联网科技股份有限公司 | The control method and alarm of a kind of alarm |
| CN108846988A (en) * | 2018-06-21 | 2018-11-20 | 厦门致联科技有限公司 | A kind of intelligent smog alarm and its buzzer self checking method |
| CN110702421A (en) * | 2019-11-20 | 2020-01-17 | 四川航天中天动力装备有限责任公司 | Turbojet engine pressure measurement and diagnosis method and device |
| WO2021142825A1 (en) * | 2020-01-19 | 2021-07-22 | 上海湃道智能科技有限公司 | Treatment system for priority of alarm event |
| CN113570831A (en) * | 2021-05-11 | 2021-10-29 | 嘉兴诺德罗普润滑科技有限公司 | Integrated wireless Bluetooth gas leakage alarm and safety linkage device |
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2009
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996475B (en) * | 2009-08-24 | 2012-06-27 | 旭达电脑（昆山）有限公司 | Gas leak self-protection communication device and method |
| CN102208127B (en) * | 2010-12-28 | 2013-07-10 | 邓韶昌 | Intrusion alarm system with self-checking function |
| CN102208127A (en) * | 2010-12-28 | 2011-10-05 | 邓韶昌 | Intrusion alarm system with self-checking function |
| CN102903202A (en) * | 2012-09-25 | 2013-01-30 | 苏州佳世达电通有限公司 | Automatic warning device and automatic warning method |
| CN103366476A (en) * | 2013-07-03 | 2013-10-23 | 郑玉龙 | Wireless remote control 626 alarm |
| CN104240451A (en) * | 2014-09-04 | 2014-12-24 | 南通北城科技创业管理有限公司 | Vehicle dangerous material detecting system |
| CN105894758A (en) * | 2014-10-27 | 2016-08-24 | 熊清远 | Displacement monitoring alarm device based on Internet of things application |
| WO2017035928A1 (en) * | 2015-08-28 | 2017-03-09 | 广东奥迪威传感科技股份有限公司 | Intelligent alarm system and method |
| CN105182885A (en) * | 2015-10-27 | 2015-12-23 | 江苏信果物资有限公司 | Communication system for remotely monitoring material safety state by using intelligent terminal |
| CN106781296A (en) * | 2016-11-24 | 2017-05-31 | 北京长城金点物联网科技股份有限公司 | The control method and alarm of a kind of alarm |
| CN108846988A (en) * | 2018-06-21 | 2018-11-20 | 厦门致联科技有限公司 | A kind of intelligent smog alarm and its buzzer self checking method |
| CN108846988B (en) * | 2018-06-21 | 2021-05-14 | 厦门致联科技有限公司 | Intelligent smoke alarm and buzzer self-checking method thereof |
| CN110702421A (en) * | 2019-11-20 | 2020-01-17 | 四川航天中天动力装备有限责任公司 | Turbojet engine pressure measurement and diagnosis method and device |
| WO2021142825A1 (en) * | 2020-01-19 | 2021-07-22 | 上海湃道智能科技有限公司 | Treatment system for priority of alarm event |
| CN113570831A (en) * | 2021-05-11 | 2021-10-29 | 嘉兴诺德罗普润滑科技有限公司 | Integrated wireless Bluetooth gas leakage alarm and safety linkage device |
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