CN107942832A - A kind of early warning system based on stroboscopic information - Google Patents
A kind of early warning system based on stroboscopic information Download PDFInfo
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- CN107942832A CN107942832A CN201711428465.7A CN201711428465A CN107942832A CN 107942832 A CN107942832 A CN 107942832A CN 201711428465 A CN201711428465 A CN 201711428465A CN 107942832 A CN107942832 A CN 107942832A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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Abstract
The present invention relates to a kind of early warning system based on stroboscopic information,Including sensing unit,Light Transmit-Receive Unit and control unit,Sensing unit includes optical modulator module and sensor,The electric signal for being loaded with monitoring information that optical modulator module sends sensor is modulated to the optical signal for including at least two glow phases in light period,Based on the luminous duration for modulating at least one glow phase,The mode of indicatrix and/or spectrum change rule sets at least one monitoring information,With the luminous duration based at least one glow phase of modulation,The mode of indicatrix and/or spectrum change rule set its luminous intensity/brightness level off to zero candela change at least one monitoring information,When at least one monitoring information in the optical signal that at least one smooth Transmit-Receive Unit receives is in alert status,Control unit sends alarm command at least one smooth Transmit-Receive Unit and controls at least one smooth Transmit-Receive Unit projection guiding light pattern corresponding with safe class to indicate emergency route.
Description
Technical field
The present invention relates to information early warning technical field, more particularly to a kind of early warning system based on stroboscopic information.
Background technology
In safety monitoring system, most basic most important function is that the analog data dynamic of real-time monitoring monitoring point becomes
Change situation, alarms reaching alarming value set in advance, when meeting or exceeding alarming value set in advance, is supervised to safety
Control system sends control signal, so that safety monitoring system sounds the alarm, and ejects window annunciator in safety monitoring system terminal
Mouthful to alarm.
For example, it is necessary to carry out special wiring for early warning system in plant produced environment.When Sensor monitoring is to a certain
During the overproof standby early warning of a monitor value, the circuit between sensor and controller is destroyed or disconnects in a fire, so as to lead
Cause early warning failure.Workpeople can cause personal safety to be on the hazard due to not receiving early warning, or even injured and dead.Cause
This, can either effective early warning, and early warning line security can be protected, the rapid method for early warning of early warning speed and early warning system are cities
On field there is an urgent need to.
Chinese patent (CN106960547 A) discloses a kind of seismic sensors sound-light alarm with LED light emitting diodes
Device, including alarm body, installation pedestal, main case, circuit control system, on alarm be equipped with protective cover, antiskid groove,
LED installation panels, transparent glass, loudspeaker, LED lamp bead, installation pedestal, line outlet, circuit control system, fixed screw holes,
There is groove, viscose glue panel, threading hole, main case, screw thread mouth, circuit control system, this dress are internally provided with alarm body
It is reasonable to install meter, simple in structure, easy for installation, production cost is low, detection, early warning high sensitivity, can be passed by detecting vibrations
Sense is sensed with sound wave to predict earthquake, and can carry out wireless connection by cell phone application and warning device body, passes through GPRS
Module detects the position of focus, and LED lamp bead stroboscopic substantially increases earthquake report as visual prompting when alarm
Alert promptness and reliability.
But APP system costs in the patent are expensive and function is single, safety change that it can not be in monitoring of environmental
Factor, it is impossible to factory and indoor early warning environment are adapted to, therefore can not effective early warning.
The content of the invention
For the deficiency of the prior art, the present invention provides a kind of early warning system based on stroboscopic information, the early warning system
Including at least one sensing unit, at least one smooth Transmit-Receive Unit and control unit, it is characterised in that the sensing unit is at least
Including an optical modulator module and at least one sensor, the optical modulator module is loaded with monitoring letter by what the sensor was sent
The electric signal of breath is modulated to the optical signal for including at least two glow phases in light period, wherein, it is at least one based on modulating
The mode of the luminous duration of glow phase, indicatrix and/or spectrum change rule sets at least one monitoring information, and is based on
The mode for modulating the luminous duration of at least one glow phase, indicatrix and/or spectrum change rule sets its luminous intensity/bright
Degree levels off at least one monitoring information of zero candela change, in the light letter that at least one smooth Transmit-Receive Unit receives
When at least one monitoring information in number is in abnormality, described control unit is sent at least one smooth Transmit-Receive Unit
Alarm command simultaneously controls at least one smooth Transmit-Receive Unit to project guiding light pattern corresponding with safe class.The present invention will be shone
The bright transmission with warning information is combined as a whole, and warning information is transmitted while illumination and projects light pattern to guide personnel to press
Evacuated according to emergency route into security context.Especially, the present invention is made by the way that the glow phase in light period is divided
Obtaining a light period has the duration that shines, luminous intensity, the various features curve of luminescent spectrum change.It is different in light period
Special medical treatment curve can form a variety of different monitoring informations from the combination of glow phase order, fully meet information transmission
Need.Since the specific optical information of the glow phase in the light period of the optical signal of each sensing unit is different, then not
Same optical signal simultaneous transmission will not cause confusion, so that information can be stablized, clearly be transmitted；
According to a preferred embodiment, the light of at least one glow phase shines in the light period of the optical signal
Duration, indicatrix and/or spectrum change rule are loaded with facility information and/or the device identification of the sensor, at least one
Luminous duration, indicatrix and/or the spectrum change rule of the light of glow phase are loaded with exception information, and/or at least one hair
Luminous duration, indicatrix and/or the spectrum change rule of the light of photophase are associated with exception information, and described control unit is based on
The classification of the guiding light pattern of at least one smooth Transmit-Receive Unit projection of safe class selection of the exception information.Will
Exception information is loaded in the indicatrix of optical signal, is advantageously reduced the analysis time of exception information, is accelerated the speed of early warning.
Especially, in glow phase exception information being arranged in light period, light receiving unit can receive monitoring at the same time
Information and exception information, can either determine overall monitoring situation, and can determine abnormal conditions, will not cause the entanglement of data
Slip up with storage.
According to a preferred embodiment, light period is divided into according to independent indicatrix by the optical modulator module
Three glow phases of light change are carried out respectively, wherein, positioned at the second glow phase of first and the 3rd between glow phase
The change of luminous intensity/brightness of indicatrix is in reduction trend, luminous intensity/brightness of the indicatrix of the 3rd glow phase
Changed by leveling off in a manner of zero candela, or the 3rd glow phase does not shine.Light period is divided into three luminous ranks
Section, adds the dimension and species of loading data transfer, also enriches the species of light change.Be conducive to same in an optical signal
When load a variety of data messages.
According to a preferred embodiment, the optical modulator module is by setting at least one glow phase in light period
The luminous intensity variations of indicatrix, duration and/or the spectrum change of shining identify the order of at least one monitoring information,
And/or the indicatrix of at least one glow phase is random character curve in setting light period.Increase random character curve,
Be conducive to adjust optical signals in the curve of load information and luminance shortage so that optical signal meet at the same time illumination intensity needs with
The needs of information transmission.
According to a preferred embodiment, the early warning system further includes single between the smooth Transmit-Receive Unit and the control
Analytic unit between member, the analytic unit are included at least based at least one monitoring information in the optical signal to analyze
Security context situation, safe class, the security information of safe emergency plan and/or emergency route, and by the security information
Send to described control unit to carry out light early warning.The setting of analytic unit, is conducive to analyze peace in real time according to exception information
Full situation, realizes the real-time and validity of safe early warning scheme, and it is uncomfortable with actual abnormal conditions to avoid safe early warning scheme
The defects of answering so that safe early warning is more flexible.
According to a preferred embodiment, described control unit is regulated and controled based on the security information in a manner of sending instruction
The optical signal of at least one smooth Transmit-Receive Unit transmitting corresponding from home with form the different security contexts of adaptation and/or
The guiding pattern of emergency route, and/or described control unit send dependent instruction to carry out voice to corresponding sound prewarning unit
Early warning.Guiding light pattern is set based on home coordinate, the safety for being conducive to personnel is left.Traditional safety instruction board is not
Change can be made according to actual conditions, there are many misleading informations.And the guiding light pattern of the present invention is according to actual conditions tune
Whole, accuracy is higher, can effectively reduce security risk and property loss.
According to a preferred embodiment, mode bag that the sensing unit and the smooth Transmit-Receive Unit establish a connection
Include：At least one glow phase shines in the light period for the optical signal that described control unit is sent based on the sensing unit
Duration, luminous intensity, spectrum change frequency and/or spectrum change rule come confirm the identity information of the sensing unit and/or
Authentication information, alternatively, at least one in the light period for the optical signal that the sensing unit is sent based on the smooth Transmit-Receive Unit
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule of glow phase selects to establish information with it
The sender or recipient of transmission.
According to a preferred embodiment, mode bag that the sensing unit and the smooth Transmit-Receive Unit establish a connection
Include：The Optical Parametric of first glow phase in the light period for the optical signal that described control unit is received based on the light receiving unit
Number selects at least one sensing unit with optical parameter threshold value, and indicates that optical signal transceiver unit is anti-to the sensing unit of selection
The light signal fed back containing specify information is presented, the feature of at least one glow phase is bent in the light period of the light signal fed back
Line is that the indicatrix of at least one glow phase and the light of the light receiving unit connect with being connected the associated curve of grant instruction
Receipt part information association.The connection mode of sensing unit and the smooth Transmit-Receive Unit, can avoid incorrect link, can also keep away
The identity theft monitoring information for exempting from illegal third party to forge.The monitoring information of one system is sometimes important and need for confidentiality
, leakage can cause serious economic loss.Therefore, the present invention has the optical signal transmission of secrecy, and safe coefficient is high, transmission speed
Degree is fast, and early warning is efficient, guides pattern flexibly and effectively advantage.
The present invention also provides a kind of method for early warning based on stroboscopic information, it is characterised in that the step of the method at least
Including：The electric signal for being loaded with monitoring information is modulated to the optical signal for including at least two glow phases in light period, wherein,
The mode of luminous duration, indicatrix and/or spectrum change rule based at least one glow phase of modulation sets at least one
A monitoring information, and the side of the luminous duration based at least one glow phase of modulation, indicatrix and/or spectrum change rule
Formula set its luminous intensity/brightness level off to zero candela change at least one monitoring information, at least one optical signal
In at least one monitoring information when being in alert status, send alarm command and simultaneously control at least one smooth Transmit-Receive Unit to throw
Guiding light pattern corresponding with safe class is penetrated to indicate emergency route.
According to a preferred embodiment, the light of at least one glow phase shines in the light period of the optical signal
Duration, indicatrix and/or spectrum change rule are loaded with exception information, and/or the light of at least one glow phase it is luminous when
Long, indicatrix and/or spectrum change rule are associated with exception information, the luminous duration of the light of at least one glow phase, spy
Sign curve and/or spectrum change rule are loaded with facility information and/or the device identification of the sensor.The safe early warning of the present invention
Method, optical signal can be visible ray or black light.User can select the spectrum of light as needed, so that
So that the transmission of monitoring information is with concealment, security, high speed, flexibility, efficient overall merit.With traditional early warning
Method, particularly compared with only having the method for early warning of flicker early warning effect, set of the present invention with a variety of method for early warning is excellent
Gesture and of low cost.Therefore, method of the invention is the tremendous improvement in early warning field.
The advantageous effects of the present invention：
(1) transmission illuminated with warning information is combined as a whole by the present invention, and warning information is transmitted simultaneously while illumination
Light pattern is projected to guide personnel to be evacuated according to emergency route into security context；
(2) alarm mode of the invention, optical signal will not be easily damaged, so as to ensure that the safety of information transmission line
Property.Moreover, the transmission speed of optical signal is very fast, can be issued warning signal in the shortest time；
(3) indicatrix of the invention feedback be light change, rather than the power of single optical signal reduces light Jie
The effect that confrontation luminous intensity influences；The change of light indicatrix will not produce the change of curve due to the absorption of optical medium；
(4) early warning system of the invention is particularly suitable for the work early warning of the instrument of quick operation.Such as the lathe of factory
Running speed is fast, and in case of a failure, traditional early warning system is delayed by line transmission fault message, transmission speed
Slowly.And the present invention transmits information by the light velocity, information transmission block, can notify the operation of lathe to be lost to reduce rapidly.
(5) in the case where air is covered with flue dust, light pre-warning signal of the invention can project drawing for emergency route rapidly
Lead pattern.Compared with traditional safety light direction board that cannot flexibly change, light Transmit-Receive Unit of the invention can be according to cigarette
The spectrum and pattern of the density of dirt and colour switching guiding pattern, so as to will not be blocked by flue dust and hinder to escape.
Brief description of the drawings
Fig. 1 is a kind of logic module schematic diagram of the early warning system of the present invention；
Fig. 2 is one of which stroboscopic curve synoptic diagram of the present invention；
Fig. 3 is the stroboscopic curve synoptic diagram of wherein five kinds the second glow phases of displaying；
Fig. 4 is the stroboscopic curve synoptic diagram of wherein seven kinds the first glow phases of displaying；
Fig. 5 is the spectral curve of A, B and C-stage between 0~5ms；
Fig. 6 is the spectral curve in D, E and F stage between 0~5ms；
Fig. 7 is the spectral curve of A, B and C-stage between 10~12ms；
Fig. 8 is the spectral curve in D, E and F stage between 10~12ms；
Fig. 9 is the spectral curve of A, B and C-stage between 12~15ms；With
Figure 10 is the spectral curve in D, E and F stage between 12~15ms.
Reference numerals list
10：Sensing unit 20：Light Transmit-Receive Unit
30：Analytic unit 40：Control unit
50：Sound prewarning unit 60：Light modulation deciphering module.
11：Optical modulator module 12：Moisture sensor
13：Photosensitive sensor 14：Acoustic sensor
15：Gas sensor
Embodiment
It is described in detail below in conjunction with the accompanying drawings.
The light period of light is divided at least two glow phases by the present invention, each glow phase has independent
Light indicatrix.Therefore, can also be known as according to the division of glow phase, communication means of the invention：Cycle two-period form shines
Method, cycle three-stage luminescence method, phase of the cycles formula luminescence method etc..
Preferably, the indicatrix of the first glow phase in light period is known as fisrt feature curve by the present invention, and second
The indicatrix of glow phase is known as second feature curve, and the indicatrix of the 3rd glow phase is known as third feature curve.
The indicatrix of the present invention includes two dimensional character curve and three-dimensional feature curve.As shown in Figures 2 to 4, two dimensional character
The dimension of curve includes shine duration and luminous intensity/brightness.The dimension of three-dimensional feature curve includes luminous duration, shines by force
Degree/brightness and spectrum.Fig. 5 to Figure 10 shows spectrum change of the light in different glow phases.Preferably, luminous week of the invention
Phase includes pulse period or the artificial cycle set on demand.The unit of light period can be the nanometer second, microsecond, millisecond, the second, point
Clock, hour.Even, the unit of light period can be year, month, day.Preferably, the unit of light period of the invention is nanometer
Second, microsecond and millisecond.For example, light period is 20ms.
Embodiment 1
It is the logic module schematic diagram of the communicator of the present invention as shown in Figure 1.
The present invention provides a kind of early warning system based on stroboscopic information, as shown in Figure 1.The present invention based on stroboscopic information
Early warning system, including sensing unit 10, at least one smooth Transmit-Receive Unit 20 and control unit 40.Sensing unit 10 includes some biographies
Sensor and at least one optical modulator module 11.The set-up mode of sensor and at least one optical modulator module 11 is very much, and user can
To set on demand.For example, in sensing unit 10, each sensor is individually connected with an optical modulator module 11.
Alternatively, multiple sensors are connected with same optical modulator module 11.
Optical modulator module 11 is used for the optical signal that the electric signal of sensor transmissions is modulated to needs.Optical modulator module is light
Modulator, for converting electrical signals to optical signal.Optical modulator is called electrooptic modulator, be regulate and control output light refractive index,
The device of absorptivity, amplitude or phase, the basic theories of its institute's foundation be various various forms of electrooptic effects, acoustooptical effect,
Magneto-optic effect, Frank-Keldgsh effects, Quantum Well Stark effects, carrier dispersion effect etc..Usually in overall optic communication
Light emitting, transmission, in receive process, optical modulator is used for the intensity for controlling light.The telecommunications that it will be exported by electric transmitter
Number optical signal is transformed into, solve the problems, such as that the amplitude of output signal and frequency all change with the change of modulation electric current, together
When inhibit " chirp " characteristic, the amplitude and state of the optical signal that regulation and control optical sender is sent, enter back into optical fiber and are propagated.Light
Modulation module includes at least Mach-Zehnder optical modulator, multidimensional grating light modulator, semiconductor quantum well optical modulator and height
Fast waveguide sound modulator.Preferably, optical modulator of the invention does not only modulate the intensity of light, also modulates the spectrum change of light, bag
Include the change frequency and adjacent spectrum change interval of spectrum.
Sensor in sensing unit 10 is used to gather and monitoring information.For example, collecting device status information and environment letter
Breath.Sensor includes at least moisture sensor 12, photosensitive sensor 13, acoustic sensor 14, gas sensor 15.Preferably,
Sensor further includes heat-sensitive sensor, smoke sensor device, image collecting device, velocity sensor, pressure sensor, infrared sensing
The sensor of the multiple uses such as device.Those skilled in the art can select the classification, model and purposes of sensor as required.
Light Transmit-Receive Unit 20 is used to receive and launch optical information.Light Transmit-Receive Unit 20 includes optical transmitting set, lamp, light wave transmitting
One or more in device, light-sensitive unit, optical sensing means and light wave reception device.Control unit 40 is used to receive and dispatch to light single
Member 20 sends control instruction.Control unit include at least central processing unit, microprocessor, server, Cloud Server, microcontroller,
One or more in special integrated chip.As shown in Figure 1, sensing unit 10 is connected with light Transmit-Receive Unit 20 by optical signal.
Light Transmit-Receive Unit 20 is directly connected to control unit 40 or is connected by analytic unit 30.By by monitoring information with optical signal
Transmission mode transmits, and can shorten delivery time and the pre-warning time of information, improves the efficiency of early warning, the safety of support personnel.
Meanwhile by optical signal early warning, can also realize the function of illumination, reduce the needs of illuminator.
Preferably, the electric signal for being loaded with monitoring information that sensor is sent is modulated in light period by optical modulator module 11
Include the optical signal of at least two glow phases.Wherein, based on luminous duration, the indicatrix for modulating at least one glow phase
And/or the mode of spectrum change rule sets at least one monitoring information, and shining based at least one glow phase of modulation
The mode of duration, indicatrix and/or spectrum change rule sets its luminous intensity/brightness to level off to the change of zero candela at least
One monitoring information.
For example, the electric signal for being loaded with collection information that optical modulator module 11 sends sensor is modulated to wrap in light period
Include the optical signal of two glow phases.The mode of the luminous duration of first glow phase, indicatrix and/or spectrum change rule
It is loaded with the data message of at least one set of sensor collection.For example, luminous duration, indicatrix and the spectrum of the first glow phase
It is setting.Preferably, the indicatrix of the first glow phase can be it is default with time ascendant trend, it is downward trend, strong
Spend constant, trend of falling after rising, first drop the indicatrix for rising trend afterwards, the first luminous rank of serial number 7-13 as shown in Figure 4
The indicatrix of section.
The light of second glow phase is with the time to level off to the second feature curvilinear motion of zero candela, or second shines
Stage does not shine.Luminous duration, indicatrix and the spectrum of the light of second glow phase can be settings.Second glow phase
Light from the light of the first glow phase be different.The optical signal of second glow phase be loaded with first sensor set mark or
Facility information.Preferably, luminous duration, indicatrix and the spectrum of the light of the second glow phase are settings, represent the first biography
Sensor.
In this way, in light period, the first glow phase and the second glow phase are collectively forming the optical signal that light and shade changes.Light
Signal includes several light periods, then changes with several light and shades, so as to form the optical signal of obvious stroboscopic, i.e. stroboscopic
Information.Preferably, the stroboscopic in optical signal of the invention can be that people, the vision of animal and plant can perceive, can also
It is that people, the vision of animal and plant can not perceive, but the stroboscopic by setting, device can detect.Even second feature
Curve, its level off to zero candela variation tendency detailed process also have thousands of kinds.For example, the parameter of indicatrix declines
Amplitude is different, and fall is different, fall time difference etc..For example, the spectrum change rule of the light of the second glow phase with
Categories of sensors and model are there are mapping relations, then optical modulator is based on categories of sensors and model selection and its mapping association
Spectrum change mode of the spectrum change rule as second feature curve.Such as second glow phase the 10th of light period
~15ms, the changing rule of spectrum can be red → yellow → blue, i.e., become yellow light by feux rouges in 12ms, become in 14ms by yellow light
Blue light.Preferably, the optical signal for carrying monitoring information can be arranged to visible ray by sensing unit, then sensing unit of the invention
Transmission of monitoring information while meeting to illuminate.Sensing unit can have the dual-use function of gathered data and illumination, from position
Put the limitation with place.Preferably, if the position that sensing unit is set needs to avoid visible ray, optical modulator module can be used
Light modulation is carried out transmission of monitoring information by 11 for black light.
Light period is divided into two glow phases, three even more hairs of glow phase by the optical modulator of the present invention
Photophase so that the indicatrix of each glow phase independently changes, and adds and changes dimension and Parameters variation kind in optical signal
Class, improves the convenience and security of optical transmission of information.
Preferably, light period is divided into and is carried out respectively according to independent indicatrix by optical modulator module 11 of the invention
Three glow phases of light change, as shown in Figure 2.Light period is 20ms, the first glow phase it is luminous when a length of 0~5ms,
Second glow phase it is luminous when a length of 5~15ms, the 3rd glow phase it is luminous when a length of 15~20ms.Positioned at first and
The change of luminous intensity/brightness of the indicatrix of the second glow phase between three glow phases is in reduction trend.Preferably,
As shown in figure 3, the indicatrix of the second glow phase have it is a variety of, can be straight line reduce or curve form drop
It is low.The present invention illustrate only 6 kinds in Fig. 2 and Fig. 3 therein.Those skilled in the art can be based on needing to set other curves
Change.Luminous intensity/brightness of the indicatrix of 3rd glow phase is changed in a manner of zero candela by leveling off to, or the 3rd
Glow phase does not shine.
Preferably, the second glow phase and the 3rd glow phase can be combined into the second glow phase, at this time two feature hairs
Light curve is the curve of consecutive variations.Otherwise, the junction of the indicatrix of the second glow phase and the 3rd glow phase is not
Continuous curve.
In the early warning system of the present invention, sensing unit 10 sends optical signal at least one smooth Transmit-Receive Unit 20.Light is received
20 pairs of bill member receives light signal collection optical parameter and its feature song that changes with time, and by optical parameter and its with the time
Variation characteristic is sent to control unit 40.Control unit is according to the optical parameter of each glow phase in light period and its with the time
Variation characteristic determine the monitoring information of each sensor.Control unit 40 is deposited in an exceptional case in monitoring information, Xiang Xiang
The early warning of pass sends alarm command together, starts early warning scheme.Preferably, control unit 40 controls at least one smooth Transmit-Receive Unit
20 projections are corresponding with safe class to guide light pattern to indicate emergency route.At this time, emergency route is corresponding with exception information
, it is default.Guiding light pattern is to be used to guide personnel to notify work, is moved to the light pattern of safety zone, it is preferred that guiding
Light pattern can be that the light projected jointly by multiple smooth Transmit-Receive Units 20 is combined and formed or a light Transmit-Receive Unit 20 is thrown
The complete pattern projected.
Preferably, control unit 40 is by the exception information in monitoring information and default safe class threshold value or threshold range
It is compared, so that it is determined that safe class.Each safe class corresponds to a kind of guiding light pattern.Control unit 40 is based on abnormal
The classification for the guiding light pattern that at least one smooth Transmit-Receive Unit 20 of safe class selection of information projects.In this way, the work at scene
Personnel can determine urgency level and take corresponding emergency measure according to the difference of guiding light pattern.Preferably, light is guided
The color of pattern is can be set according to the difference of environment.
According to a preferred embodiment, sensor unit 10 actively carries abnormal data after monitoring information is collected
Take and collect as exception information.The light period of optical signal is divided into two or three glow phases, at least one by sensing unit
The light of a glow phase is loaded with exception information with the luminous duration, indicatrix and/or spectrum change rule set.For example, the
The indicatrix of one glow phase is the curve of mark exception information.Alternatively, the luminous duration of the light of at least one glow phase,
Indicatrix and/or spectrum change rule are associated with exception information list mapping.For example, the uneasy flower of the spectrum of the first glow phase
Frequency is associated with some abnormal conditions in exception information list.The luminous duration of last interior glow phase of light period,
Indicatrix and/or spectrum change rule are loaded with facility information and/or the device identification of sensor.Therefore, control unit is connecing
After the optical parameter for receiving the transmission of light Transmit-Receive Unit, exception information and acquisition abnormity are assured that according to the variation characteristic of optical parameter
The facility information of the sensor of information and/or device identification.Control unit corresponds to after abnormal conditions are determined according to abnormal conditions
Safe class selection guiding light pattern classification and indicate light Transmit-Receive Unit project.
Preferably, optical modulator module 11 is by setting shining for the indicatrix of at least one glow phase in light period
Strength Changes, duration and/or the spectrum change of shining identify the order of at least one monitoring information, and/or set light period
The indicatrix of interior at least one glow phase is random character curve.
For example, monitoring information includes numerous data.In transmitting procedure, optical signal can occur repeatedly to reflect, and reach light
The time of Transmit-Receive Unit 20 and order can change.In order to solve this problem, it is ensured that the order of the monitoring information finally obtained
Light period is set three glow phases by correctness, optical modulator module of the invention.First glow phase and the second luminous rank
The indicatrix of section is loaded with a part of monitoring information respectively.The indicatrix of first glow phase can correspond to Part II monitoring
Information, the indicatrix of the second glow phase can correspond to Part I monitoring information.The indicatrix of 3rd glow phase exists
Parameter or spectrum change sometime is associated with the order of monitoring information.For example, the indicatrix of the 3rd glow phase exists
The information for the first and second glow phase of coded representation that 3 parameters of the equispaced between 12ms and 13ms are formed it is suitable
Sequence.Preferably, which can also represent order of the light period in overall data.
Random character curve is arranged to by the indicatrix of a glow phase in light period, light can be made up
The deficiency of luminous intensity of the signal in illumination, avoids the adverse effect of illumination deficiency.Moreover, for needing in a manner of encrypted
The monitoring information of transmission, can set random character curve optical signal to prevent it to obscure illegal third-party conjecture
The transportation law of optical signal is found to be cracked.
Therefore, early warning system of the invention also has encryption effect.The encrypted transmission mode to monitoring information of the present invention
It is as follows.At this time, light Transmit-Receive Unit 20 is provided with the light modulation deciphering module 60 for being decrypted to optical signal.Light modulation deciphering module
60 can be optical modulator.
For example, the light intensity parameter in the indicatrix of light is corresponding with information to be sent, then optical modulator module pass through by
Information to be sent is compiled as initial characteristics curve in a manner of mapping.Also, initial characteristics curve is divided into by optical modulator module
Some sections of indicatrixes are simultaneously distributed between first and the luminosity curve of phase III of each light period, be formed by
The encryption information of multi-layer security.Preferably, first or the 3rd the light intensity parameter sometime of glow phase describe encryption
The order of information.Preferably, the luminous intensity variations of the indicatrix of the first glow phase are random graph.
Preferably, optical modulator module 11 is by setting shining for the indicatrix of at least one glow phase in light period
Difference between the peak value and/or valley of intensity, the peak value of spectrum and/or valley, peak value and valley come to information to be sent into
Row encryption.Likewise, the light modulation deciphering module 60 for decryption is by analyzing at least one glow phase in light period
Difference between the peak value and/or valley of the luminous intensity of indicatrix, the peak value of spectrum and/or valley, peak value and valley with
And corresponding threshold value selects at least one parameter in indicatrix to be decrypted.
For example, join the peak value of the luminous intensity of the indicatrix of the second glow phase as the association of information to be sent
Number, the order information using spectrum change frequency as its information.Then even if the indicatrix of the second glow phase is trapped, illegally
Third party does not grasp its manner of decryption, and the variation tendency, delta data only in accordance with the indicatrix of optical signal also can not Exact Solutions
It is close to obtain information.
For example, optical modulator module 11 is by setting the luminous strong of the indicatrix of at least one glow phase in light period
Difference between the peak value and/or valley of degree, the peak value of spectrum and/or valley, peak value and valley to carry out information to be sent
Encryption.Light modulation deciphering module 60 is by analyzing the luminous intensity of the indicatrix of at least one glow phase in light period
Difference and corresponding threshold value between peak value and/or valley, the peak value of spectrum and/or valley, peak value and valley select spy
At least one parameter in sign curve is decrypted.Therefore, the present invention by the electric signal of sensor by being converted to light period
The light of interior multiple glow phases, and luminous duration, luminous intensity, the luminous light of each indicatrix to each glow phase
The parameter of spectrum could be adjusted to form encrypted optical signal, and powerful data volume can effectively avoid illegal molecule from using data solution
The close mode attempted one by one progressively cracks the cipher mode of optical information.That is, early warning system of the invention, while illumination is taken into account
Can either be with encrypted light velocity transmission of monitoring data, and the early warning speed of information can be improved, and projected under dangerous situation
The guiding light pattern that guiding personnel withdraw, improves the efficiency that personnel safety is left.
Preferably, spy of the optical modulator module 11 with light modulation deciphering module 60 at least one glow phase in light period
The parameter for levying at least one dimension of curve is synchronously changed so as to form identification characteristics in a manner of the rolling code that synchronous counting adds one
Curve.Optical modulator module 11 and light modulation deciphering module 60 are carried out based on the matching degree of the identification characteristics curve in optical signal
Safety verification.
The indicatrix of the 3rd glow phase in each light period in the optical signal that optical modulator module 11 is sent
In a manner of the rolling code for adding one by synchronous counting.For example, spectrum change interval duration adds 1, spectrum change frequency to add 1, shine by force
Time where degree plus 1, or luminous intensity peak adds 1.Setting of the light modulation deciphering module 60 to third feature curve with
The mode of rolling code synchronously changes, then light modulation deciphering module 60 is to the 3rd luminous rank in each light period of optical signal
The unduplicated indicatrix of section can carry out safety verification.Therefore, optical modulator module 11 is based on light modulation deciphering module 60
The matching of identification characteristics curve in optical signal carries out safety verification.In the case of safety verification failure, then reject
The optical signal of encryption unit, or the received optical signal of docking are decrypted without information.
Embodiment 2
The present embodiment is that the further of embodiment 1 is improved, and the content repeated repeats no more.
The present embodiment provides a kind of early warning system based on stroboscopic information.As shown in Figure 1, the present invention based on stroboscopic information
Early warning system, not only including sensing unit 10, at least one smooth Transmit-Receive Unit 20 and control unit 40, further include and received between light
Analytic unit 30 between bill member 20 and control unit 40.Analytic unit 30 is used to data are calculated and analyzed.Analysis
Unit can be in computer, central processing unit, microprocessor, special integrated chip, microcontroller, server, Cloud Server
It is one or more of.
Analytic unit 30 analyzes security situation, i.e. security information based at least one monitoring information in optical signal.Peace
Full information includes at least the one or more in security context situation, safe class, safe emergency plan and/or emergency route.
At this time, safe emergency plan, emergency route are not default, but are sent by analytic unit based on sensing unit by optical signal
Monitoring information comprehensive assessment after obtain.Safe emergency plan and emergency route are that the current security situation of set determines,
It is suitable for different early warning situations.Preferably, analytic unit 30 is by the safe emergency plan in security information and/or safe road
Line is sent to control unit 40.Control unit 40 according to the security information of acquisition to relevant smooth Transmit-Receive Unit send instruction with into
Row light early warning, i.e. projection guiding light pattern.
Preferably, control unit 40 regulated and controled based on security information in a manner of sending instruction it is corresponding with home at least
The light that one light Transmit-Receive Unit 20 is launched adapts to the guiding pattern of different security contexts and/or emergency route to form.For example, have
Light Transmit-Receive Unit 20 be in danger position, then at coordinate instruction of the control unit 40 based on security information and light Transmit-Receive Unit 20
In the light pattern of the projection mark safety of light Transmit-Receive Unit 20 of home, light Transmit-Receive Unit 20 of the instruction in danger position is thrown
Penetrate the dangerous light pattern of mark.Meanwhile control unit 40 can also to corresponding sound prewarning unit 50 send dependent instruction with into
Row phonetic warning.
In the present invention, sensing unit 10 establishes a connection with light Transmit-Receive Unit 20 according to following several ways.
The first：At least one luminous rank in the light period for the optical signal that control unit 40 is sent based on sensing unit 10
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule of section confirm the identity information of sensing unit 10
And/or authentication information.
Second：It is at least one in the light period for the optical signal that sensing unit 10 is sent based on light Transmit-Receive Unit 20 to shine
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule in stage come come select with it establishes information transmission
Sender or recipient.
For example, light period is set, the luminous duration setting of each glow phase, the indicatrix of the first glow phase contains
There are the curvilinear characteristic change or spectrum change rule that light Transmit-Receive Unit 20 can identify, such as, containing between having time in spectrum change
Be divided into red → yellow → blue change mark of 1ms, or 5 moment of the first glow phase light intensity parameter taper off rule,
Progressive law and/wait than rule to change.As long as the indicatrix of the first glow phase contains the mark that light Transmit-Receive Unit is specified,
The optical signal that analytic unit 30 can just identify the identity information for the sensing unit 10 for sending optical signal or be sent to sensing unit
It is authenticated, so as to select to establish the sender or recipient of information transmission with it.
Preferably, sensing unit 10 and light Transmit-Receive Unit 20 can also exchange identity.Control unit 40 is received and dispatched single by light
Member 20 sends the optical signal of search connection at least one sensing unit.At least one glow phase in the light period of optical signal
Light there are identification characteristics.The sensing unit 10 of the identification characteristics can be identified after optical signal is received, to light Transmit-Receive Unit
20 send with the light signal fed back for establishing link information.Control unit 40 is received by light Transmit-Receive Unit 20 and certification feedback light
After signal, send to sensing unit 10 again by light Transmit-Receive Unit 20 and received and dispatched with the instruction optical signal for confirming connection, i.e. light
Unit 20 establishes optical signal with sensing unit 10 and is connected, and proceeds by the transmission of monitoring information.
The third：First glow phase in the light period for the optical signal that control unit 40 is received based on light receiving unit 20
Optical parameter and optical parameter threshold value select at least one sensing unit 10, and indicate optical signal transceiver unit 20 to selection
Sensing unit 10 feed back the light signal fed back containing specify information.At least one luminous rank in the light period of light signal fed back
The indicatrix of section is with being connected the associated curve of grant instruction, the indicatrix and light receiving unit of at least one glow phase
20 light-receiving conditional information association.
For example, control unit 40 by analyze sensing unit 10 feed back light period at least one glow phase spy
The spectrum change for levying curve determines the matching degree between equipment.
For example, light receiving unit 20 receives the light signal fed back that is sent by sensing unit 10 and by the light with time correlation
Parameter is sent to analytic unit 30.Analytic unit 30 analyzes the spectrum change of light signal fed back, determines sensing unit 10
Identity whether be matched sensing equipment, i.e., the identity of sensor is authenticated by spectrum change.If spectrum
Changing rule is identical with the default spectrum change for certification or matches, then sensing unit and light Transmit-Receive Unit successful match,
It can each other continue or send optical signal.If it fails to match, light Transmit-Receive Unit no longer sends any light to sensing unit
Signal, or no longer the optical signal identified with the sensing unit is analyzed and understood.
Therefore, the present invention is encrypted information using many kinds of parameters of multiple dimensions of indicatrix, that is, ensure that communication dress
It can mutually be verified between putting, can also ensure the selection mechanism to receiving terminal or transmitting terminal in message transmitting procedure, also
It can improve that information is encrypted to crack difficulty, additionally it is possible to ensure that the Crypted password of optical information meets the encrypted needs of information, also
It can ensure the verification again after information reception.
The present invention also provides with a kind of encryption method of optical information, it is characterised in that method comprises the following steps：Based on extremely
The electric signal for being loaded with data message is encrypted as the first encryption pulse electrical signal by a kind of few encryption function, based at least one light tune
The optical signal that first encryption pulse electrical signal is modulated to include at least two glow phases in a light period by scheme processed.
Wherein, the light of at least one glow phase independently changes according to the indicatrix with time correlation and indicatrix and first is encrypted
Pulse electrical signal is corresponding.The light of at least one glow phase is according to associated with the encryption function of the first encryption pulse electrical signal
Indicatrix independently change.And/or the light of at least one glow phase with the time to level off to the indicatrix of zero candela
Change.
Preferably, the specific steps of the encryption method of optical information of the invention and the encrypting step of encryption system are identical, no
Repeat again.
Embodiment 3
The present embodiment is that embodiment 1 and embodiment 2 and its further improvement combined, the content repeated are repeated no more.
Indicatrix change of the present embodiment to the optical signal of Fig. 2 to Figure 10 is described in detail.The present invention's is preferable
The variation tendency of the indicatrix of first glow phase is as shown in Figures 2 to 4.Transverse axis in figure represents time, unit ms.It is vertical
Axis represents intensity or relative intensity, and unit is unlimited, is represented with universal notation a.u.The light period of the present embodiment is preferably
20ms, the first glow phase are 0~5ms, and the second glow phase is 5~15ms, and the 3rd glow phase is 15~20ms.
1-6 luminosity curves as shown in Figures 2 and 3, the luminous intensity of the first glow phase are constant.As shown in Figure 47
Number luminosity curve, the luminous intensity of the first glow phase, which has, rapidly to be risen and the change repeatedly of dramatic decrease, but overall bent
The excursion of line is constant.No. 8 luminosity curves as shown in Figure 4, the luminous intensity of the first glow phase have slowly rise and
The change repeatedly slowly declined, but integrated curved excursion is constant.No. 9 luminosity curves as shown in Figure 4, the first luminous rank
The luminous intensity of section has the change that ladder rises and ladder declines.No. 10 luminosity curves as shown in Figure 4, the first glow phase
Luminous intensity have and smooth rise the peaceful change for sliding drop.No. 11 luminosity curves as shown in Figure 4, the first glow phase
Luminous intensity has the variation tendency declined according to straight line.No. 12 luminosity curves as shown in Figure 4, the first glow phase shine
Intensity has the change of ladder rising after first ladder decline.No. 13 luminosity curves as shown in Figure 4, the first glow phase shine
Intensity has the change smoothly risen after first smooth decline.
1-6 luminosity curves as shown in Figures 2 and 3, illustrate the indicatrix of wherein several second glow phases
Change.No. 1 luminosity curve as shown in Figure 2, the downward trend of the concave curve of luminous intensity of the second glow phase.Such as Fig. 3
No. 2 shown luminosity curves, the luminous intensity of the second glow phase are in the downward trend of crest curve.No. 3 hairs as shown in Figure 3
Light curve, the downward trend of the concave Wave curved of luminous intensity of the second glow phase.No. 4 luminosity curves as shown in Figure 3,
The luminous intensity of second glow phase is in the downward trend of convex Wave curved.No. 5 luminosity curves as shown in Figure 3, the second hair
The luminous intensity of photophase is stepped the downward trend of curve.No. 6 luminosity curves as shown in Figure 3, the second glow phase
The downward trend of the linear curve of luminous intensity.
Fig. 5 to Figure 10 is the spectrum change displaying figure of the present invention.Transverse axis represents wavelength, unit nm.The longitudinal axis represents intensity
Or relative intensity, unit is unlimited, is represented with universal notation a.u.
Wherein, Fig. 5 and Fig. 6 illustrates the light in six stages of A~F of the first glow phase of 0~5ms in light period
Spectrum.The change order of spectrum is A → B → C → D → E → F.Preferably, the change order of spectrum can be altered as desired.Such as Fig. 5 institutes
Show, luminescent spectrum of the optical signal in the A stages is located at 450nm, 550nm and 650nm respectively between 350~700nm of wavelength, wave crest.
Optical signal is located at 450nm and 550nm respectively in the luminescent spectrum of B-stage between 350~700nm of wavelength, wave crest.Optical signal is in C
The luminescent spectrum in stage is located at 450nm and 650nm respectively between 350~750nm of wavelength, wave crest.As shown in fig. 6, optical signal is in D
The luminescent spectrum in stage is located at 250nm and 650nm respectively between 150~800nm of wavelength, wave crest.Optical signal shines E-stage
Spectrum is located at 450nm, 650nm and 850nm respectively between 150~900nm of wavelength, wave crest.Luminescent spectrum of the optical signal in the F stages
Between 150~900nm of wavelength, wave crest is located at 650nm and 850nm respectively.
Wherein, Fig. 7 and Fig. 8 illustrates the light in six stages of A~F of the second glow phase of 10~12ms in light period
Spectrum.The change order of spectrum is A → B → C → D → E → F.Preferably, the change order of spectrum can be altered as desired.Such as Fig. 7 institutes
Show, luminescent spectrum of the optical signal in the A stages is located at 550nm and 650nm respectively between 350~750nm of wavelength, wave crest.Optical signal
It is located at 550nm between 350~700nm of wavelength, wave crest in the luminescent spectrum of B-stage.Optical signal C-stage luminescent spectrum between
350~750nm of wavelength, wave crest are located at 650nm.As shown in figure 8, optical signal the D stages luminescent spectrum between wavelength 150~
800nm, wave crest are located at 650nm.Particularly, luminous intensity of the indicatrix near 650nm rapidly raising and lowering.Optical signal
It is located at 650nm between 150~850nm of wavelength, wave crest in the luminescent spectrum of E-stage.Particularly, indicatrix is near 650nm
Luminous intensity rapidly rise and slowly decline.Optical signal the F stages luminescent spectrum between 150~900nm of wavelength, wave crest position
In 650nm.Particularly, luminous intensity of the indicatrix near 650nm slowly rises and slowly declines.
Wherein, Fig. 9 and Figure 10 illustrates six stages of A~F of the 3rd glow phase of 12~15ms in light period
Spectrum.The change order of spectrum is A → B → C → D → E → F.Preferably, the change order of spectrum can be altered as desired.Such as Fig. 9
Shown, luminescent spectrum of the optical signal in the A stages is located at 550nm between 350~750nm of wavelength, wave crest, and near 550nm
Luminous intensity slowly rise with wavelength, rapidly rise closing on peak value, to slowly declining after peaking.Optical signal is in B
For the luminescent spectrum in stage between 350~700nm of wavelength, wave crest is located at 550nm, and the luminous intensity near 550nm with
Wavelength slowly rises, to slowly declining after peaking.Optical signal C-stage luminescent spectrum between 350~750nm of wavelength,
Wave crest is located at 650nm, and the luminous intensity near 650nm slowly rises with wavelength, to dramatic decrease after peaking.
As shown in Figure 10, for optical signal in the luminescent spectrum in D stages between 150~850nm of wavelength, wave crest is located at 650nm, and
And the luminous intensity near 650nm slowly rises with wavelength, to slowly declining after peaking.Optical signal is in E-stage
Luminescent spectrum is between 150~850nm of wavelength, and wave crest is located at 650nm respectively, and the luminous intensity near 650nm is with ripple
It is long slowly to rise, rapidly rise and to slowly declining after peaking closing on peak value.Luminescent spectrum of the optical signal in the F stages is situated between
In 150~900nm of wavelength, wave crest is located at 650nm, and the luminous intensity near 650nm slowly rises with wavelength, is facing
Nearly peak value rapidly rises and to slowly declining after peaking.Preferably, in D → F stages, the luminous intensity phase of E-stage peak value
To relatively low.
Present invention additionally comprises the indicatrix of other versions, and huge number, can not show one by one.
Embodiment 4
The present embodiment is that the further of embodiment 1 to 3 is improved, and the content repeated repeats no more.
A kind of method for early warning based on stroboscopic information, it is characterised in that the step of method includes at least：Monitoring letter will be loaded with
The electric signal of breath is modulated to the optical signal for including at least two glow phases in light period, wherein, it is at least one based on modulating
The mode of the luminous duration of glow phase, indicatrix and/or spectrum change rule sets at least one monitoring information, and is based on
The mode for modulating the luminous duration of at least one glow phase, indicatrix and/or spectrum change rule sets its luminous intensity/bright
Degree level off to zero candela change at least one monitoring information.At at least one monitoring information at least one optical signal
When alert status, send alarm command and control at least one smooth Transmit-Receive Unit projection guiding light figure corresponding with safe class
Case is to indicate emergency route.
The luminous duration of the light of at least one glow phase, indicatrix and/or spectrum become in the light period of optical signal
Law is loaded with exception information, and/or luminous duration, indicatrix and/or the spectrum change of the light of at least one glow phase
Rule is associated with exception information, and luminous duration, indicatrix and/or the spectrum change rule of the light of at least one glow phase carry
There are facility information and/or the device identification of sensor.
For example, safety box is provided with sensing unit 10, sensing unit 10 is connected with coded lock.Light Transmit-Receive Unit 20 is interior
Lamps and lanterns.Control unit 40 and analytic unit 30 can be arranged in lamps and lanterns, can also be arranged on outside lamps and lanterns.When someone prepares to open
When dynamic coded lock and password or the errors number of checking information input reach threshold value, sensing unit 10 is by exception information with invisible
Optical signal send to light Transmit-Receive Unit 20.Control unit 40 is based on exception information and starts early warning scheme, controls sound early warning list
Member starts, and control lamps and lanterns project light pattern and the flicker of warning.
For example, some indoor switch is provided with the sensing unit 10 of alarm.When user indoors run into threat and not
When just alarming, starting switch then triggers sensing unit 10, and sensing unit 10 is by indoor address information and warning message with invisible
Light is sent to the light Transmit-Receive Unit 20 of lamps and lanterns.Control unit 40 is based on exception information by network or special circuit to 110 platforms
Alarm.So as to complete alarm behavior in the case where letting alone illegal molecule.
For example, the first lamps and lanterns for being mounted with sensing unit are provided with lathe in factory and are provided with light Transmit-Receive Unit 20
The second lamps and lanterns.First lamps and lanterns send monitoring information with the optical signal of visible ray to the second lamps and lanterns, that is, meet the photograph of lathe needs
It is bright, and effectively transmit monitoring information.Analytic unit 30 is stored with early warning scheme, workshop configuration information, workshop escape way
Etc. information.After the exception information in monitoring information is analyzed, analytic unit 30 combines workshop information and exception information is comprehensive
To the safe class of workshop and the emergency route of personnel, so as to form safe early warning scheme.Analytic unit 30 is by safe early warning
Scheme sends control unit 40.Control unit 40 be based on safe early warning scheme to coordinate be in home and with emergency route phase
The second lamps and lanterns closed send the control instruction of projection light pattern.Second lamps and lanterns send corresponding route and refer in response to control instruction
Diagram case or safety sign pattern.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention scope and fall into this hair
Within bright protection domain.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Form limitations on claims.Protection scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of early warning system based on stroboscopic information, the early warning system includes at least one sensing unit (10), at least one
A light Transmit-Receive Unit (20) and control unit (40), it is characterised in that
The sensing unit (10) includes at least an optical modulator module (11) and at least one sensor, the optical modulator module
(11) electric signal for being loaded with monitoring information for sending the sensor is modulated to include at least two luminous ranks in light period
The optical signal of section, wherein,
Based on the mode for modulating the luminous duration of at least one glow phase, indicatrix and/or spectrum change rule set to
A few monitoring information, and
The mode of luminous duration, indicatrix and/or spectrum change rule based at least one glow phase of modulation sets it
Luminous intensity/brightness level off to zero candela change at least one monitoring information,
At least one monitoring information in the optical signal that at least one smooth Transmit-Receive Unit (20) receives is in abnormal
During state, described control unit (40) sends alarm command at least one smooth Transmit-Receive Unit (20) and controls at least one
The smooth Transmit-Receive Unit (20) projects guiding light pattern corresponding with safe class.
2. early warning system as claimed in claim 1, it is characterised in that at least one in the light period of the optical signal to shine
Luminous duration, indicatrix and/or the spectrum change rule of the light in stage are loaded with the facility information and/or equipment of the sensor
Mark,
Luminous duration, indicatrix and/or the spectrum change rule of the light of at least one glow phase are loaded with exception information, and/
Or
Luminous duration, indicatrix and/or the spectrum change rule of the light of at least one glow phase are associated with exception information,
Safe class of the described control unit (40) based on the exception information selects at least one smooth Transmit-Receive Unit (20)
The classification of the guiding light pattern of projection.
3. early warning system as claimed in claim 2, it is characterised in that light period is divided into by the optical modulator module (11)
Carry out three glow phases of light change respectively according to independent indicatrix,
Wherein,
Change positioned at luminous intensity/brightness of the indicatrix of the second glow phase of first and the 3rd between glow phase is in
Reduction trend,
Luminous intensity/brightness of the indicatrix of 3rd glow phase is changed in a manner of zero candela by leveling off to, or the 3rd
Glow phase does not shine.
4. the early warning system as described in one of claims 1 to 3, it is characterised in that the optical modulator module (11) passes through setting
Luminous intensity variations of the indicatrix of at least one glow phase in light period, shine duration and/or spectrum change to mark
Know the order of at least one monitoring information, and/or
The indicatrix for setting at least one glow phase in light period is random character curve.
5. the early warning system as described in one of Claims 1-4, it is characterised in that the early warning system is further included between described
Analytic unit (30) between light Transmit-Receive Unit (20) and described control unit (40),
The analytic unit (30) is analyzed including at least security context based at least one monitoring information in the optical signal
Situation, safe class, the security information of safe emergency plan and/or emergency route, and the security information is sent to institute
Control unit (40) is stated to carry out light early warning.
6. early warning system as claimed in claim 5, it is characterised in that described control unit (40) be based on the security information with
The mode for sending instruction regulates and controls the optical signal of at least one smooth Transmit-Receive Unit (20) transmitting corresponding with home with structure
Into the guiding pattern for adapting to different security contexts and/or emergency route, and/or
Described control unit (40) sends dependent instruction to carry out phonetic warning to corresponding sound prewarning unit (50).
7. the early warning system as described in one of claim 1 to 6, it is characterised in that the sensing unit (10) is received with the light
The mode that bill member (20) establishes a connection includes：
Described control unit (40) is based at least one in the light period for the optical signal that the sensing unit (10) is sent shine
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule in stage confirms the sensing unit (10)
Identity information and/or authentication information, alternatively,
The sensing unit (10) is based at least one hair in the light period for the optical signal that the smooth Transmit-Receive Unit (20) sends
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule of photophase come come select with it establishes information pass
Defeated sender or recipient.
8. the early warning system as described in one of claim 1 to 6, it is characterised in that the sensing unit (10) is received with the light
The mode that bill member (20) establishes a connection includes：
Described control unit (40) is based on the first luminous rank in the light period for the optical signal that the light receiving unit (20) receives
The optical parameter of section selects at least one sensing unit (10) with optical parameter threshold value, and indicates optical signal transceiver unit (20)
The light signal fed back containing specify information is fed back to the sensing unit (10) of selection,
The indicatrix of at least one glow phase is with being connected grant instruction association in the light period of the light signal fed back
Curve, the indicatrix of at least one glow phase associates with the light-receiving conditional information of the light receiving unit (20).
9. a kind of method for early warning based on stroboscopic information, it is characterised in that the step of the method includes at least：
The electric signal for being loaded with monitoring information is modulated to the optical signal for including at least two glow phases in light period, wherein,
Based on the mode for modulating the luminous duration of at least one glow phase, indicatrix and/or spectrum change rule set to
A few monitoring information, and
The mode of luminous duration, indicatrix and/or spectrum change rule based at least one glow phase of modulation sets it
Luminous intensity/brightness level off to zero candela change at least one monitoring information,
When at least one monitoring information at least one optical signal is in alert status, sends alarm command and control
At least one smooth Transmit-Receive Unit (20) projection is corresponding with safe class to guide light pattern to indicate emergency route.
10. method for early warning as claimed in claim 9, it is characterised in that at least one hair in the light period of the optical signal
Luminous duration, indicatrix and/or the spectrum change rule of the light of photophase are loaded with exception information, and/or
Luminous duration, indicatrix and/or the spectrum change rule of the light of at least one glow phase are associated with exception information,
Luminous duration, indicatrix and/or the spectrum change rule of the light of at least one glow phase are loaded with the sensor
Facility information and/or device identification.
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