CN104574725A - Signal processing alarm unit and electronic wall formed by signal processing alarm unit - Google Patents
Signal processing alarm unit and electronic wall formed by signal processing alarm unit Download PDFInfo
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- CN104574725A CN104574725A CN201310517680.XA CN201310517680A CN104574725A CN 104574725 A CN104574725 A CN 104574725A CN 201310517680 A CN201310517680 A CN 201310517680A CN 104574725 A CN104574725 A CN 104574725A
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- 238000001914 filtration Methods 0.000 claims abstract description 107
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 54
- 230000007613 environmental effect Effects 0.000 claims description 36
- 238000005286 illumination Methods 0.000 claims description 13
- 230000009194 climbing Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
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- 238000009413 insulation Methods 0.000 description 1
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- 230000009545 invasion Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
- G08B13/124—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence with the breaking or disturbance being optically detected, e.g. optical fibers in the perimeter fence
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
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Abstract
The invention discloses a signal processing alarm unit which comprises a signal conversion module and a signal processing module, wherein the signal conversion module can be used for converting input signals into signals to be processed and then outputting to the signal processing module; the signal processing module is previously set with a signal filter condition, an alarm condition and an alarm model, and can be used for filtering the signals to be processed according to the signal filter condition so as to filter out the interference signals in the signals to be processed, comparing the interference signal-filtered signals to be processed with the preset alarm condition, judging the alarm mode according to the preset alarm condition and sending local alarm signals or sending alarm information to far-end control equipment. The invention further discloses an electronic wall formed by the signal processing alarm unit. The signal processing alarm unit provide by the invention is capable of decreasing the false alarm to the greatest extent according to the actual using environment so as to reduce the false alarm rate.
Description
Technical field
The present invention relates to safety precaution field, particularly relate to a kind of signal transacting alarm unit.The invention still further relates to a kind of fence be made up of described signal transacting alarm unit.
Background technology
At present, in housing unit or other places, base periphery, solid wall is installed fence has become requisite security link, and fence is generally fixed area and provides burglar alarm service, and two kinds of more common fence forms are:
1. active electronic fence, is not generally provided with physical fences, and main employing infrared opposite-type detector or laser correlative detector, it differentiates whether there is intrusion behavior according to the sudden change on infrared or laser signal.
Active infrared correlative detector and laser correlative detector are usually used in outdoor enclosing wall alarming.When object crosses its search coverage, interdict infrared beam and cause alarm.Active infrared correlative detector and laser correlative detector will select the suitable triggering response time: the response time is too short easily causes unnecessary interference, and as bird flies over, fallen leaves are sailed and waited initiation false alarm; Oversize, easily formed and fail to report police.In addition, all wrong report may be produced for the dense fog in nature, sleet, leaf or blocking of flowers and plants.
2. passive type fence, primarily of physical fences, tension force or pulse detection device composition, the invasion signal detected on physical fences is converted into electric signal in order to differentiate whether there is intrusion behavior by tension force or pulse detection device;
Pulse electronic fence is usually used in outdoor enclosing wall alarming.When object crosses its search coverage, adjacent wires short circuit or open wires is caused to cause alarm.Pulse electronic fence will select suitable trigger pulse amplitude: pulse height is too low easily causes unnecessary interference, and as light rain, little grass etc. cause electric leakage false alarm; Tai Gaozeyi is formed and fails to report police.In addition, the electric leakage caused for the dense fog in nature, sleet, leaf or flowers and plants all may produce wrong report.The bird that pulse electronic fence solves active infrared/laser correlative detector flies over/falls leaves initiation false alarm problems such as sailing, reduce the wrong report problem that the dense fog in nature, sleet, leaf or flowers and plants are caused, but the problem that generation one is new is again exactly that high-voltage pulse is easily to the safety problem that human body damages.
Tension electronic fence is usually used in outdoor enclosing wall alarming.When object crosses its search coverage, one or more tension cord tension variation are caused to cause alarm.Tension electronic fence will select suitable trigger sensitivity: sensitivity is too high easily causes unnecessary interference, and as wind and snow rain, vegetation touches tension cord and causes false alarm; Sensitivity is too low, is easily formed and fails to report police.In addition, the interference caused for the dense fog in nature, sleet, leaf or flowers and plants all may produce wrong report.Tension electronic fence solves the life safety problem of high-voltage pulse to invader of pulse electronic fence, does not still solve the wrong report problem that the dense fog in nature, sleet, leaf or flowers and plants are caused.
Except previous security problem and wrong report problem, present fence is all arranged on enclosure wall top, and entity wall portion does not possess and realized warning function when destroying, and enclosure wall is installed the problem of fence urban.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of signal transacting alarm unit that can reduce rate of false alarm.Present invention also offers a kind of fence be made up of described signal transacting alarm unit, real actualizing technology takes precautions against the combination with physical containment.
For solving the problems of the technologies described above, signal transacting alarm unit of the present invention, comprising:
Signal conversion module, can be converted into pending signal by input signal, export to signal processing module;
Described pending signal can be 0V ~ 10000V standard electric signal and or the digital signal that formed corresponding to the amplitude of variation of input signal;
Described signal conversion module, also can first be converted into the standard electric signal of 0V ~ 10000V and then be converted into the digital signal corresponding with the amplitude of variation of input signal by input signal;
Signal processing module, it is preset with target signal filter condition, alert and if alarm mode, target signal filter can be carried out to described pending signal according to target signal filter condition, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device;
Described signal processing module its can to as pending signal 0V ~ 10000V standard electric signal and or the digital signal corresponding with the amplitude of variation of input signal carry out filtering and compare to determine process.
Wherein, described input signal is tension signal, pulse voltage signal, pulsed current signal and infrared signal wherein one or more.
Wherein, described target signal filter condition is time constant filter, and the pending signal in the time constant filter corresponding cycle is preset in filtering.
Wherein, described target signal filter condition also comprises: the state 1 second ~ 5 seconds (being then judged to be wind or sleet interference) that the pending signal more than 50% becomes greatly simultaneously or diminishes simultaneously, pending signal corresponding in this duration of filtering.
Wherein, described preset alarm condition criterion alarm mode adopts:
1) through the pending signal of target signal filter become large simultaneously or wherein at least 1 become large other remain unchanged time, be judged to be intrusion alarm pattern;
2), when diminishing after first change greatly appears in the pending signal of target signal filter, climbing intrusion alarm pattern is judged to be;
3) to occur lower than cutting off setting value, or/and when pulse voltage is lower than open circuit voltage, being judged as cutting off intrusion alarm through the pending signal of target signal filter;
4) through the pending signal of target signal filter occur lower than lax setting value but be greater than cut off setting value time, be judged as lax warning.
Wherein, described signal transacting alarm unit also comprises and has the environment module that environmental sensor can collect site environment information, and described environment module is preset with environment filtering condition, can be environment filtering condition by site environment convert information;
Pending signal through target signal filter is sent to described environment module by described signal processing module, and described environment module environmentally filtering condition sends it back described signal processing module after carrying out environment filtering to the described pending signal through target signal filter again;
Pending signal after target signal filter and environment filtering and preset alarm condition compare by described signal processing module, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
Wherein, described signal transacting alarm unit also comprises and has the environment module that environmental sensor can collect site environment information, and described environment module is preset with environment filtering condition, can be environment filtering condition by site environment convert information; Described environment module receives the pending signal that described signal conversion module exports, and environmentally filtering condition is sent to signal processing module after carrying out environment filtering to described pending signal;
Signal processing module carries out target signal filter according to target signal filter condition to through the pending signal of environment filtering again, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device
Wherein, described environmental information is wind direction, wind speed, temperature, humidity, illumination or smog wherein one or more.
Wherein, described environmental information is converted into the employing of environment filtering condition:
1) environmental information be illumination or/and temperature variation, be presented as that the pending signal that environment module receives slowly changes, the pending signal of this part of filtering; Described slow change refers to temperature variation 1 DEG C, and described pending signal changed 1 millivolt ~ 100 millivolts in 1 second ~ 60 seconds;
Illumination is or/and temperature tension force has an impact as input signal.Illumination is finally reflected as temperature, and when illumination is large, temperature is high; Illumination hour, temperature is low.Illumination is or/and temperature major effect tension force is as input signal; The tension value that tonometry adopts pre-tightening tension rope and sensor connected mode to measure tension cord changes.Because tension cord pretightning force exists all the time, because tension cord material can produce trace change with its length of variation of ambient temperature, and then cause the static tensile value of tension cord to change thereupon.Because this change is very slow, general filtering technology is difficult to deal with problems, here the tension value electric signal that the sensor constantly measuring tension cord exports is adopted, (such as Butterworth is calculated by filtering, Chebyshev, smothing filtering) after new measured value as current static tension value, as long as in the scope of tension variation scope (such as 0 ~ 500N), temperature variation 1 DEG C, it is presented as that pending signal changed 1 millivolt ~ 100 millivolts (temperature variation 1 DEG C in 1 second ~ 60 seconds, tension cord is in response temperature change in 1 second ~ 60 seconds, make tension cord length variations, the tension value of pre-tightening tension rope is caused to change, such as 1 ~ 10N).
2) environmental information be wind-force or/and wind speed, the pending signal being presented as more than 50% becomes greatly simultaneously or the state that simultaneously diminishes continues 1 second ~ 5 seconds, the pending signal of this part of filtering;
Fence wind in vertical direction has the greatest impact to tension cord, different wind directions make perpendicular to fence wind-force, wind speed change, so wind direction is eventually through air speed influence tension force, tension force is changed; Transfer this tension variation to change for pending signal, the pending signal of this part of filtering gets final product filtering wind-force or/and the interference of wind speed.
3) environmental information is humidity change, and range of humidity variation is 10%-90%, is presented as that described pending signal excursion is 1000V ~ 9000V, the pending signal of this part of filtering;
Range of humidity variation 10% ~ 90%, can cause high-voltage pulse exporting change (being such as reduced to 8000V from 10000V), is presented as that pending signal excursion is 1000V ~ 9000V;
The main paired pulses measurement of humidity has an impact.Humidity can reduce the insulation resistance of tinsel and support component, causes pulse voltage significantly to reduce, affects Measurement reliability.By testing the change curve set up between voltage and electric current, realizing adaptive algorithm according to this change curve, the pulse by humidity effect is compensated.
4) when described environmental information is smog change, smog variation range is 100ppm ~ 5000ppm, is presented as described pending signal excursion 2000V ~ 10000V.Smog major effect is infrared, infrared die down to be embodied in pending signal is diminished, diminish and can cause wrong report;
Smog major effect is measured in light mode, such as Infrared survey.Smog causes attenuated optical signal, causes operating distance to shorten, even cannot measure; Pending signal can be caused to diminish, and filtering smog makes pending signal diminish pending signal corresponding to this part;
Environmentally information (smog) change is by testing the change curve set up between smog change with standard electric, dynamically increase emissive power according to this change curve and dynamically increase receiving sensitivity mode and improve signal to noise ratio (S/N ratio), reduce environmental impact, wrong report is eliminated in filtering.
Wherein, described various environmental information change all can adopt and set up environmental information change by test and obtain environmental information with the change curve mode between pending signal and change the impact treating processing signals.
Wherein, described preset alarm condition criterion alarm mode adopts:
1) the pending signal after target signal filter and environment filtering become large simultaneously or wherein at least 1 become large other when remaining unchanged, be judged to be intrusion alarm pattern;
2), when the pending signal after target signal filter and environment filtering diminishes after there is first change greatly, climbing intrusion alarm pattern is judged to be;
3) the pending signal appearance after target signal filter and environment filtering, is judged as cutting off intrusion alarm or/and when pulse voltage is lower than open circuit voltage lower than cutting off setting value;
4) but the pending signal after target signal filter and environment filtering occurs lower than lax setting value is greater than when cutting off setting value, is judged as lax warning.
A kind of fence, comprises any one signal transacting alarm unit at least aforementioned, also comprises:
Remote signaling process/integrated alarm equipment, it is connected with described signal transacting alarm unit, produces alerting signal, and record warning message to the warning message that signal transacting alarm unit exports;
The entity fence of tension cord, support member and secure component composition, as the load bearing component of fence, described signal transacting alarm unit can be installed on described support member inside or its top, and described signal transacting alarm unit can accept the tension signal of described tension cord as input signal.
Wherein, above described entity fence, also have fence, described fence is as the prevention device above physical fences, and its output signal is as the input signal of described signal transacting alarm unit.
Such as: existing active electronic fence (infrared opposite-type detector or laser correlative detector) can be adopted, using the input signal of the output signal of this fence as signal transacting alarm unit, pending signal is converted into through signal conversion module, and treat processing signals and carry out interference filtering, and the pending signal after filtering interfering and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device; So just can accomplish the combination of below physical fences and top fence.
Wherein, described tension cord has the tinsel of tensile resistance, metal twisting silk, nonmetal wire, nonmetal twisting silk wherein any one or a few.
Wherein, described tension cord is electric conductor, can carry pulse voltage 5000V ~ 10000V, and the duration is less than 1ms and high voltage pulse electric current is less than 10A, and the duration is less than 1ms.
The invention provides the signal processing module of signal transacting alarm unit, it is preset with target signal filter condition, alert and if alarm mode, target signal filter can be carried out to described pending signal according to target signal filter condition, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
The invention provides signal transacting alarm unit can also comprise and have the environment module that environmental sensor can collect site environment information, described environment module is preset with environment filtering condition, can be environment filtering condition by site environment convert information; To sending it back described signal processing module after carrying out environment filtering through the pending signal of target signal filter again, (or described environment module receives described signal conversion module and exports pending signal described environment module environmentally filtering condition, and environmentally filtering condition is sent to signal processing module after carrying out environment filtering to described pending signal; ) the pending signal after target signal filter and environment filtering and preset alarm condition compare by described signal processing module, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
Signal transacting alarm unit of the present invention can reduce wrong report to greatest extent according to practical service environment, reduces rate of false alarm.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the present invention is further detailed explanation:
Fig. 1 is the structural representation of signal transacting alarm unit first embodiment of the present invention.
Fig. 2 is the structural representation of signal transacting alarm unit second embodiment of the present invention.
Fig. 3 is the structural representation of signal transacting alarm unit the 3rd embodiment of the present invention.
Fig. 4 is the structural representation of fence one embodiment of the present invention.
Embodiment
As shown in Figure 1, signal transacting alarm unit first embodiment of the present invention, comprising:
At least four road input signals can be converted into four road 0V ~ 10000V standard electric signals and then be converted into corresponding digital signal as pending signal, export to signal processing module by signal conversion module;
The combination that input signal can adopt the tension signal, pulse voltage signal, pulsed current signal or the infrared signal that are provided by sensor wherein a kind of or wherein several; Tension signal, pulse voltage signal, pulsed current signal or infrared signal can adopt following technological means to form pending signal:
Tension force adopts tension pick-up to be converted to millivolt level electric signal, is then converted into 0V ~ 10000V standard electric signal through amplification, then becomes the digital signal corresponding with tension force and pending signal through ADC conversion;
Pulse current, pulse voltage are converted to corresponding digital signal respectively by pulse width conversion, pulse width measure;
Infrared signal is converted into standard electric signal by infrared sensor, is then converted to corresponding digital signal through signal strength measurement or pulse width measure;
In the present embodiment, signal processing module, it is preset with two kinds of target signal filter conditions, four kinds of alert and if four kinds of alarm modes, can carry out target signal filter according to the target signal filter condition selected to described pending signal;
Two kinds of target signal filter conditions in the present embodiment are:
1) time constant filter, the pending signal in the time constant filter 100ms corresponding cycle is preset in filtering; Adopt single-chip microcomputer respectively according to filtering algorithm (such as Bart's this filtering algorithm, chebyshev algorithm, smothing filtering difficult to understand etc.) filtering.
2) lasting 1 second ~ 5 seconds of the state (being then judged to be wind or sleet interference) that the pending signal more than 50% becomes greatly simultaneously or diminishes simultaneously, pending signal corresponding in this duration of filtering;
Single-chip microcomputer can be adopted to set up the array of all input signals according to the time, then compare according to the numerical value of each same time input signal array, the numerical value all occurring more than 50% in continuous several arrays (such as 6 ~ 8 arrays) becomes simultaneously and diminishes greatly or simultaneously.
Undesired signal in pending signal described in filtering, and comparing through the pending signal of target signal filter and preset alarm condition, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device;
In the present embodiment, judge that four kinds of alarm modes adopt (change according to the pending signal of four tunnels after target signal filter judges alarm mode as alert if) according to the four kinds of alert if preset:
1) through the pending signal of target signal filter become large simultaneously or wherein at least 1 become large other remain unchanged time, be judged to be intrusion alarm pattern;
2), when diminishing after first change greatly appears in the pending signal of target signal filter, climbing intrusion alarm pattern is judged to be;
3) to occur lower than cutting off setting value, or/and when pulse voltage is lower than open circuit voltage, being judged as cutting off intrusion alarm through the pending signal of target signal filter;
4) through the pending signal of target signal filter occur lower than lax setting value but be greater than cut off setting value time, be judged as lax warning.
As shown in Figure 2, signal transacting alarm unit second embodiment of the present invention, it is on first embodiment of the invention basis, described signal transacting alarm unit also comprises and has the environment module (environmental information also can be supplied to environment module by remote control device by network) that environmental sensor can collect site environment information, described environment module is preset with environment filtering condition, site environment information (wind direction, wind speed, temperature, humidity, illumination or smog) can be converted into environment filtering condition;
Pending signal through target signal filter is sent to described environment module by described signal processing module, and described environment module environmentally filtering condition sends it back described signal processing module to described signal processing module again after carrying out environment filtering through the pending signal of target signal filter;
Pending signal after target signal filter and environment filtering and preset alarm condition compare by described signal processing module, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
Wherein, described environmental information is converted into the employing of environment filtering condition:
1) environmental information be illumination or/and temperature variation, be presented as that the pending signal that environment module receives slowly changes, the pending signal of this part of filtering;
Described slow change refers to temperature variation 1 DEG C, and described pending signal changed 1 millivolt ~ 100 millivolts in 1 second ~ 60 seconds;
2) environmental information is wind-force or/and wind speed change, and the pending signal being presented as more than 50% becomes greatly simultaneously or the state that simultaneously diminishes continues 1 second ~ 5 seconds, the pending signal of this part of filtering;
3) for environmental information is humidity change, range of humidity variation is 10%-90%, is presented as that described pending signal excursion is 1000V ~ 9000V, the pending signal of this part of filtering; By testing the change curve set up between voltage and electric current, realizing adaptive algorithm according to this change curve, the pulse by humidity effect is compensated.
4) when described environmental information is smog change, smog variation range is 100ppm ~ 5000ppm, is presented as described pending signal excursion 2000V ~ 10000V.Smog major effect is infrared, infrared die down to be embodied in pending signal is diminished, diminish and can cause wrong report; Environmentally information (smog) change is by testing the change curve set up between smog change with standard electric, dynamically increase emissive power according to this change curve and dynamically increase receiving sensitivity mode and improve signal to noise ratio (S/N ratio), reduce environmental impact, wrong report is eliminated in filtering.
Wherein, described preset alarm condition criterion alarm mode adopts:
1) the pending signal after target signal filter and environment filtering become large simultaneously or wherein at least 1 become large other when remaining unchanged, be judged to be intrusion alarm pattern;
2), when the pending signal after target signal filter and environment filtering diminishes after there is first change greatly, climbing intrusion alarm pattern is judged to be;
3) the pending signal appearance after target signal filter and environment filtering, is judged as cutting off intrusion alarm or/and when pulse voltage is lower than open circuit voltage lower than cutting off setting value;
4) but the pending signal after target signal filter and environment filtering occurs lower than lax setting value is greater than when cutting off setting value, is judged as lax warning.
As shown in Figure 3, signal transacting alarm unit second embodiment of the present invention, it is on first embodiment of the invention basis, described signal transacting alarm unit also comprises and has the environment module that environmental sensor can collect site environment information, described environment module is preset with environment filtering condition, site environment information (wind direction, wind speed, temperature, humidity, illumination or smog) can be converted into environment filtering condition; Described environment module receives described signal conversion module and exports pending signal, and environmentally filtering condition is sent to signal processing module after carrying out environment filtering to described pending signal;
Signal processing module carries out target signal filter according to target signal filter condition to through the pending signal of environment filtering again, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device
Wherein, described environmental information is converted into the employing of environment filtering condition:
1) environmental information be illumination or/and temperature variation, be presented as that the pending signal that environment module receives slowly changes, the pending signal of this part of filtering;
Described slow change refers to temperature variation 1 DEG C, and described pending signal changed 1 millivolt ~ 100 millivolts in 1 second ~ 60 seconds;
2) environmental information is wind-force or/and wind speed change, and the pending signal being presented as more than 50% becomes greatly simultaneously or the state that simultaneously diminishes continues 1 second ~ 5 seconds, the pending signal of this part of filtering;
3) for environmental information is humidity change, range of humidity variation is 10%-90%, is presented as that described pending signal excursion is 1000V ~ 9000V, the pending signal of this part of filtering; By testing the change curve set up between voltage and electric current, realizing adaptive algorithm according to this change curve, the pulse by humidity effect is compensated.
4) when described environmental information is smog change, smog variation range is 100ppm ~ 5000ppm, is presented as described pending signal excursion 2000V ~ 10000V, the pending signal of this part of filtering.Environmentally the change of information smog is by testing the change curve set up between smog change with standard electric, and dynamically increase emissive power according to this change curve and dynamically increase receiving sensitivity mode and improve signal to noise ratio (S/N ratio), reduction environmental impact, wrong report is eliminated in filtering.
Wherein, described preset alarm condition criterion alarm mode adopts:
1) the pending signal after target signal filter and environment filtering become large simultaneously or wherein at least 1 become large other when remaining unchanged, be judged to be intrusion alarm pattern;
2), when the pending signal after target signal filter and environment filtering diminishes after there is first change greatly, climbing intrusion alarm pattern is judged to be;
3) the pending signal appearance after target signal filter and environment filtering, is judged as cutting off intrusion alarm or/and when pulse voltage is lower than open circuit voltage lower than cutting off setting value;
4) but the pending signal after target signal filter and environment filtering occurs lower than lax setting value is greater than when cutting off setting value, is judged as lax warning.
Fence of the present invention its can comprise signal transacting alarm unit first of the present invention to any one in the 3rd embodiment; As shown in Figure 4, this fence embodiment comprises the 3rd embodiment of signal transacting alarm unit of the present invention:
Also comprise remote signaling process/integrated alarm equipment, it is connected with described signal transacting alarm unit, produces alerting signal, and record warning message to the warning message that signal transacting alarm unit exports;
The entity fence of tension cord, support member and secure component composition, as the load bearing component of fence, described signal transacting alarm unit can be installed on described support member inside or its top, and described signal transacting alarm unit can accept the tension signal of described tension cord as input signal.
Wherein, above described entity fence, also have fence, described fence is as the prevention device above physical fences, and its output signal is as the input signal of described signal transacting alarm unit.(the tension electronic fence LT-Z2101 that such as Shanghai Lian Teng communication company produces, tension pulse fence LT-F2101, infrared intrusion detector LT-T2101/M3)
In the present embodiment, tension cord is the electric conductor such as tinsel or metal twisting silk that have tensile resistance, and can carry pulse voltage 5000V ~ 10000V, the duration is less than 1ms and high voltage pulse electric current is less than 10A, and the duration is less than 1ms.
Below through the specific embodiment and the embodiment to invention has been detailed description, but these are not construed as limiting the invention.Without departing from the principles of the present invention, those skilled in the art also can make many distortion and improvement, and these also should be considered as protection scope of the present invention.
Claims (13)
1. a signal transacting alarm unit, is characterized in that, comprising:
Signal conversion module, can be converted into pending signal by input signal, export to signal processing module;
Signal processing module, it is preset with target signal filter condition, alert and if alarm mode, target signal filter can be carried out to described pending signal according to target signal filter condition, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
2. signal transacting alarm unit as claimed in claim 1, is characterized in that: described input signal is tension signal, pulse voltage signal, pulsed current signal and infrared signal wherein one or more.
3. signal transacting alarm unit as claimed in claim 1, is characterized in that: described target signal filter condition is time constant filter, and the pending signal in the time constant filter corresponding cycle is preset in filtering.
4. signal transacting alarm unit as claimed in claim 3, it is characterized in that: described target signal filter condition also comprises: the pending signal more than 50% becomes greatly simultaneously or the state that simultaneously diminishes continues 1 second ~ 5 seconds, pending signal corresponding in this duration of filtering.
5. signal transacting alarm unit as claimed in claim 1, is characterized in that: described preset alarm condition criterion alarm mode adopts:
1) through the pending signal of target signal filter multiple become greatly simultaneously or wherein at least 1 become large other remain unchanged time, be judged to be intrusion alarm pattern;
2), when diminishing after first change greatly appears in the pending signal of target signal filter, climbing intrusion alarm pattern is judged to be;
3) to occur lower than cutting off setting value, or/and when pulse voltage is lower than open circuit voltage, being judged as cutting off intrusion alarm through the pending signal of target signal filter;
4) through the pending signal of target signal filter occur lower than lax setting value but be greater than cut off setting value time, be judged as lax warning.
6. signal transacting alarm unit as claimed in claim 1, it is characterized in that: also comprise and there is the environment module that environmental sensor can collect site environment information, described environment module is preset with environment filtering condition, can be environment filtering condition by site environment convert information;
Pending signal through target signal filter is sent to described environment module by described signal processing module, and described environment module environmentally filtering condition sends it back described signal processing module after carrying out environment filtering to the described pending signal through target signal filter again;
Pending signal after target signal filter and environment filtering and preset alarm condition compare by described signal processing module, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
7. signal transacting alarm unit as claimed in claim 1, it is characterized in that: also comprise and there is the environment module that environmental sensor can collect site environment information, described environment module is preset with environment filtering condition, can be environment filtering condition by site environment convert information;
Described environment module receives the pending signal that described signal conversion module exports, and environmentally filtering condition is sent to signal processing module after carrying out environment filtering to described pending signal;
Signal processing module carries out target signal filter according to target signal filter condition to through the pending signal of environment filtering again, undesired signal in pending signal described in filtering, the pending signal of filtering interference signals and preset alarm condition are compared, according to preset alarm condition criterion alarm mode, send local alerting signal and or send warning message to remote control device.
8. signal transacting alarm unit as claimed in claims 6 or 7, is characterized in that: described environmental information is wind direction, wind speed, temperature, humidity, illumination or smog wherein one or more.
9. signal transacting alarm unit as claimed in claims 6 or 7, is characterized in that: described environmental information is converted into environment filtering condition and adopts:
1) environmental information be illumination or/and temperature variation, be presented as that the pending signal that environment module receives slowly changes, the pending signal of this part of filtering;
Described slow change refers to temperature variation 1 DEG C, and described pending signal changed 1 millivolt ~ 100 millivolts in 1 second ~ 60 seconds;
2) environmental information is wind-force or/and wind speed change, and the pending signal being presented as more than 50% becomes greatly simultaneously or the state that simultaneously diminishes continues 1 second ~ 5 seconds, the pending signal of this part of filtering;
3) environmental information is humidity change, and range of humidity variation is 10%-90%, is presented as that described pending signal excursion is 1000V ~ 9000V, the pending signal of this part of filtering;
4) when described environmental information is smog change, smog variation range is 100ppm ~ 5000ppm, is presented as described pending signal excursion 2000V ~ 10000V, the pending signal of this part of filtering.
10. signal transacting alarm unit as claimed in claims 6 or 7, is characterized in that: described preset alarm condition criterion alarm mode adopts:
1) the pending signal after target signal filter and environment filtering become large simultaneously or wherein at least 1 become large other when remaining unchanged, be judged to be intrusion alarm pattern;
2), when the pending signal after target signal filter and environment filtering diminishes after there is first change greatly, climbing intrusion alarm pattern is judged to be;
3) the pending signal appearance after target signal filter and environment filtering, is judged as cutting off intrusion alarm or/and when pulse voltage is lower than open circuit voltage lower than cutting off setting value;
4) but the pending signal after target signal filter and environment filtering occurs lower than lax setting value is greater than when cutting off setting value, is judged as lax warning.
11. 1 kinds of fences, comprise at least one signal transacting alarm unit described in claim 1-7 any one, it is characterized in that:
Also comprise remote signaling process/integrated alarm equipment, it is connected with described signal transacting alarm unit, produces alerting signal, and record warning message to the warning message that signal transacting alarm unit exports;
The entity fence of tension cord, support member and secure component composition, as the load bearing component of fence, described signal transacting alarm unit can be installed on described support member inside or its top, and described signal transacting alarm unit can accept the tension signal of described tension cord as input signal.
12. fences as claimed in claim 11, it is characterized in that: above described entity fence, also there is fence, described fence is as the prevention device above physical fences, and its output signal is as the input signal of described signal transacting alarm unit.
13. fences as claimed in claim 11, it is characterized in that: described tension cord is electric conductor, can carry pulse voltage 5000V ~ 10000V, the duration is less than 1ms and high voltage pulse electric current is less than 10A, and the duration is less than 1ms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310517680.XA CN104574725A (en) | 2013-10-28 | 2013-10-28 | Signal processing alarm unit and electronic wall formed by signal processing alarm unit |
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| CN201310517680.XA CN104574725A (en) | 2013-10-28 | 2013-10-28 | Signal processing alarm unit and electronic wall formed by signal processing alarm unit |
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| CN104574725A true CN104574725A (en) | 2015-04-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862820A (en) * | 2017-11-03 | 2018-03-30 | 王蓓 | A kind of perimeter alarm system |
| CN109885560A (en) * | 2019-02-18 | 2019-06-14 | 中国石油大学(北京) | The cleaning method and device of shale gas pressure break equipment infrared imaging inspection data |
| CN111667654A (en) * | 2020-06-05 | 2020-09-15 | 北京法之运科技有限公司 | False alarm prevention method for electronic fence |
-
2013
- 2013-10-28 CN CN201310517680.XA patent/CN104574725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862820A (en) * | 2017-11-03 | 2018-03-30 | 王蓓 | A kind of perimeter alarm system |
| CN107862820B (en) * | 2017-11-03 | 2020-09-29 | 王蓓 | Perimeter alarm system |
| CN109885560A (en) * | 2019-02-18 | 2019-06-14 | 中国石油大学(北京) | The cleaning method and device of shale gas pressure break equipment infrared imaging inspection data |
| CN111667654A (en) * | 2020-06-05 | 2020-09-15 | 北京法之运科技有限公司 | False alarm prevention method for electronic fence |
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Application publication date: 20150429 |