CN107942832B - 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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- CN107942832B CN107942832B CN201711428465.7A CN201711428465A CN107942832B CN 107942832 B CN107942832 B CN 107942832B CN 201711428465 A CN201711428465 A CN 201711428465A CN 107942832 B CN107942832 B CN 107942832B
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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 systems 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 in light period including at least two light emitting phases, based on the luminous duration for modulating at least one light emitting phase, at least one monitoring information is arranged in the mode of indicatrix and/or spectrum change rule, with the luminous duration based at least one light emitting phase of modulation, the mode of indicatrix and/or spectrum change rule be arranged its luminous intensity/brightness level off to zero candela variation at least one monitoring information, when at least one monitoring information at least one received optical signal of light Transmit-Receive Unit is in alert status, control unit is sent at least one light Transmit-Receive Unit Alarm command simultaneously controls at least one light Transmit-Receive Unit projection guidance light pattern corresponding with security level 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 systems based on stroboscopic information.
Background technique
In safety monitoring system, most basic most important function is that the analog data dynamic of real-time monitoring monitoring point becomes
Change situation, alarm reaching preset alarming value, when meeting or exceeding preset alarming value, is supervised to safety
Control system issues control signal, so that safety monitoring system sounds the alarm, and pops up window annunciator in safety monitoring system terminal
Mouth is to alarm.
For example, needing to carry out special wiring for early warning system in plant produced environment.When sensor monitor it is a certain
When the overproof standby early warning of a monitor value, the route between sensor and controller is destroyed or disconnects in a fire, 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 diode
Device, including alarm ontology, installation pedestal, main case, circuit control system, on alarm be equipped with protective cover, antiskid groove,
LED install panel, transparent glass, loudspeaker, LED lamp bead, installation pedestal, line outlet, circuit control system, fixed screw holes,
There is slot, viscose glue panel, threading hole, main case, screw thread mouth, is set inside the body circuit control system, this dress in alarm
Install meter rationally, structure is simple, and easy for installation, production cost is low, detection, early warning high sensitivity, can pass by detection vibration
Sense is sensed with sound wave to predict earthquake, and can be wirelessly connected by cell phone application and warning device ontology, and GPRS is passed through
Module detects the position of focus, and LED lamp bead stroboscopic substantially increases earthquake report as visual prompt when alarm
Alert timeliness and reliability.
But APP system cost in the patent is expensive and has a single function, and can not monitor the safety variation in environment
Factor can not adapt to factory and indoor early warning environment, therefore can not effective early warning.
Summary of the invention
For the deficiencies 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 light Transmit-Receive Unit and control unit, which is characterized 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 for what the sensor was sent
The electric signal of breath is modulated to the optical signal in light period including at least two light emitting phases, wherein is based on modulating at least one
At least one monitoring information is arranged in the mode of the luminous duration of light emitting phase, indicatrix and/or spectrum change rule, and is based on
Its luminous intensity/bright is arranged in the mode for modulating the luminous duration of at least one light emitting phase, indicatrix and/or spectrum change rule
Degree levels off at least one monitoring information of zero candela variation, at least one received light letter of smooth Transmit-Receive Unit
At least one monitoring information in number is when in an abnormal state, and described control unit is sent to smooth Transmit-Receive Unit described at least one
Alarm command simultaneously controls at least one described smooth Transmit-Receive Unit and projects guidance light pattern corresponding with security level.The present invention will be shone
The bright transmission with warning information is combined as a whole, and transmits warning information while lighting and projects light pattern to guide personnel to press
It evacuates according to emergency route into security context.Particularly, the present invention is made by dividing the light emitting phase in light period
Obtain the various features curve that there is a light period duration that shines, luminous intensity, luminescent spectrum to change.It is different in light period
Special medical treatment curve can constitute a variety of different monitoring informations from the combination of light emitting phase sequence, sufficiently meet information transmission
It needs.Since the specific optical information of the light emitting phase in the light period of the optical signal of each sensing unit is different, then not
Same optical signal simultaneous transmission not will lead to confusion, so that information can be stablized, clearly be transmitted；
According to a preferred embodiment, the light of at least one light emitting 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 light emitting 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 security level of the exception information selects the classification of the guidance light pattern of at least one smooth Transmit-Receive Unit projection.It will
Exception information loads in the indicatrix of optical signal, advantageously reduces the analysis time of exception information, accelerates the speed of early warning.
Particularly, in light emitting phase exception information being arranged in light period, light receiving unit can receive monitoring simultaneously
Information and exception information can either determine whole monitoring situation, and can determine abnormal conditions, not will lead to the entanglement of data
It makes mistakes with storage.
According to a preferred embodiment, light period is divided into according to independent indicatrix by the optical modulator module
Three light emitting phases of light variation are carried out respectively, wherein the second light emitting phase between first and third light emitting phase
Luminous intensity/brightness variation of indicatrix is in decreasing trend, luminous intensity/brightness of the indicatrix of third light emitting phase
Changed in a manner of zero candela or third light emitting phase does not shine by leveling off to.Light period is divided into three luminous ranks
Section increases the dimension and type of load data transmission, also enriches the type of light variation.Be conducive to same in an optical signal
When load a variety of data informations.
According to a preferred embodiment, the optical modulator module passes through at least one light emitting phase in setting light period
The luminous intensity variations of indicatrix, duration and/or the spectrum change of shining identify the sequence of at least one monitoring information,
And/or the indicatrix of at least one light emitting phase is random character curve in setting light period.Increase random character curve,
Be conducive to adjust optical signals in load information the curve of luminance shortage so that optical signal meet simultaneously illumination intensity need and
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
Analytical unit between member, the analytical unit are included at least based at least one monitoring information in the optical signal to analyze
Security context situation, security level, the security information of safe emergency plan and/or emergency route, and by the security information
Described control unit is sent to carry out light early warning.The setting of analytical 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, avoids safe early warning scheme and practical abnormal conditions are uncomfortable
The defect answered, so that safe early warning is more flexible.
According to a preferred embodiment, described control unit is regulated and controled in a manner of sending instruction based on the security information
The optical signal of at least one smooth Transmit-Receive Unit transmitting corresponding from home with constitute the different security contexts of adaptation and/or
The guidance pattern and/or described control unit of emergency route send dependent instruction to corresponding sound prewarning unit to carry out voice
Early warning.Guidance light pattern is set based on home coordinate, and the safety for being conducive to personnel is left.Traditional safety instruction board is not
Variation can be made according to the actual situation, and there are many misleading informations.And guidance light pattern of the invention is to adjust according to the actual situation
Whole, accuracy is higher, can be effectively reduced security risk and property loss.
According to a preferred embodiment, mode packet that the sensing unit and the smooth Transmit-Receive Unit establish a connection
Include: at least one light emitting 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 sensing unit identity information and/or
Authentication information, alternatively, in the light period for the optical signal that the sensing unit is sent based on the smooth Transmit-Receive Unit at least one
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule of light emitting phase selects to establish information with it
The sender or recipient of transmission.
According to a preferred embodiment, mode packet that the sensing unit and the smooth Transmit-Receive Unit establish a connection
It includes: the Optical Parametric of the first light emitting phase in light period of the described control unit based on the received optical signal of the light receiving unit
It is several to select at least one sensing unit with optical parameter threshold value, and indicate 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 light emitting phase is bent in the light period of the light signal fed back
Line is and connect the associated curve of grant instruction, and the indicatrix of at least one light emitting phase and the light of the light receiving unit connect
Receipt part information association.The connection type 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 important sometimes and need for confidentiality
, leakage will 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 high-efficient, guides pattern flexibly and effectively advantage.
The present invention also provides a kind of method for early warning based on stroboscopic information, which is characterized in that the step of the method at least
It include: the optical signal being modulated to the electric signal for being loaded with monitoring information in light period including at least two light emitting phases, wherein
The mode of luminous duration, indicatrix and/or spectrum change rule based at least one light emitting phase of modulation is arranged at least one
A monitoring information, and the side of the luminous duration based at least one light emitting phase of modulation, indicatrix and/or spectrum change rule
Formula be arranged its luminous intensity/brightness level off to zero candela variation 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 described smooth Transmit-Receive Unit and throw
Guidance light pattern corresponding with security level is penetrated to indicate emergency route.
According to a preferred embodiment, the light of at least one light emitting phase shines in the light period of the optical signal
Duration, indicatrix and/or spectrum change rule be loaded with exception information and/or the light of at least one light emitting 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 light emitting phase, spy
Sign curve and/or spectrum change rule are loaded with facility information and/or the device identification of the sensor.Safe early warning of the invention
Method, optical signal can be visible light, be also possible to black light.User can according to need the spectrum of selection light, thus
So that the transmission of monitoring information has concealment, safety, high speed, flexibility, high-efficient overall merit.With traditional early warning
Method, especially compared with the method for early warning only with flashing early warning effect, the present invention has the set of a variety of method for early warning excellent
Gesture and low in cost.Therefore, method of the invention is the tremendous improvement in early warning field.
Advantageous effects of the invention:
(1) illumination and the transmission of warning information are combined as a whole by the present invention, transmit warning information simultaneously while lighting
Light pattern is projected to guide personnel to evacuate according to emergency route into security context；
(2) alarm mode of the invention, optical signal will not be easily damaged, 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) what indicatrix of the invention was fed back is the variation of light, rather than the power of single optical signal, reduces light Jie
The effect that confrontation luminous intensity influences；The variation of light indicatrix will not due to optical medium absorption and generate the variation of curve；
(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, for traditional early warning system by line transmission fault message, transmission speed is slow
Slowly.And the present invention transmits information by the light velocity, information transmission block can notify the operation of lathe rapidly to reduce loss.
(5) in the case where air is covered with flue dust, light pre-warning signal of the invention can project rapidly drawing for emergency route
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 guidance pattern, to will not be blocked by flue dust and hinder to escape.
Detailed description of the invention
Fig. 1 is a kind of logic module schematic diagram of early warning system of the invention；
Fig. 2 is one of stroboscopic curve synoptic diagram of the invention；
Fig. 3 is the stroboscopic curve synoptic diagram of wherein five kinds of second light emitting phases of displaying；
Fig. 4 is the stroboscopic curve synoptic diagram of wherein seven kinds of first light emitting 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 signs list
10: sensing unit 20: light Transmit-Receive Unit
30: analytical 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
Specific embodiment
It is described in detail with reference to the accompanying drawing.
The light period of light is divided at least two light emitting phases by the present invention, each light emitting phase has independent
Light indicatrix.Therefore, according to the division of light emitting phase, communication means of the invention can also be known as: period two-period form shines
Method, period three-stage luminescence method, phase of the cycles formula luminescence method etc..
Preferably, the indicatrix of the first light emitting phase in light period is known as first characteristic curve by the present invention, and second
The indicatrix of light emitting phase is known as second feature curve, and the indicatrix of third light emitting phase is known as third feature curve.
Indicatrix of the 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 shine duration, strong light
Degree/brightness and spectrum.Fig. 5 to Figure 10 shows light in the spectrum change of different light emitting phases.Preferably, luminous week of the invention
Phase includes pulse period or the artificial period being arranged on demand.The unit of light period can be the nanometer second, microsecond, millisecond, the second, divide
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 communication device of the 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.It is of the invention based on stroboscopic information
Early warning system, including sensing unit 10, at least one light Transmit-Receive Unit 20 and control unit 40.Sensing unit 10 includes several biographies
Sensor and at least one optical modulator module 11.There are many set-up mode of sensor and at least one optical modulator module 11, and user can
To be arranged on demand.For example, each sensor is individually connect with an optical modulator module 11 in sensing unit 10.
Alternatively, multiple sensors are connect with the same optical modulator module 11.
Optical modulator module 11 is used for the optical signal for being modulated to the electric signal of sensor transmissions to need.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, basic theories based on it be various various forms of electrooptic effects, acoustooptical effect,
Magneto-optic effect, Frank-Keldgsh effect, Quantum Well Stark effect, carrier dispersion effect etc..Usually in whole optic communication
Light emitting, transmission, in receive process, optical modulator be used to control the intensity of light.The telecommunications that it will be exported by electric transmitter
Number optical signal is transformed into, solves the problems, such as that the amplitude of output signal and frequency all change with the variation of modulation electric current, together
When inhibit " chirp " characteristic, the amplitude and state of the optical signal that regulation optical sender issues 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, the intensity of optical modulator of the invention not only modulation light, the also spectrum change of modulation light, packet
Include the change frequency and adjacent spectrum change interval of spectrum.
Sensor in sensing unit 10 is for acquisition and monitoring information.For example, acquisition 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 for receiving and emitting optical information.Light Transmit-Receive Unit 20 includes optical transmitting set, lamp, light wave transmitting
One or more of 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, single-chip microcontroller,
One or more of special integrated chip.As shown in Figure 1, sensing unit 10 is connect with light Transmit-Receive Unit 20 by optical signal.
Light Transmit-Receive Unit 20 is directly connected to control unit 40 or is connect by analytical unit 30.By by monitoring information with optical signal
Transmission mode transmission, can shorten delivery time and the pre-warning time of information, improve the efficiency of early warning, the safety of support personnel.
Meanwhile by optical signal early warning, the function of illumination also may be implemented, 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
Optical signal including at least two light emitting phases.Wherein, based on luminous duration, the indicatrix for modulating at least one light emitting phase
And/or at least one monitoring information, and shining based at least one light emitting phase of modulation is arranged in the mode of spectrum change rule
The mode of duration, indicatrix and/or spectrum change rule is arranged its luminous intensity/brightness and levels off to the variation of zero candela at least
One monitoring information.
For example, the electric signal for being loaded with acquisition information that optical modulator module 11 sends sensor is modulated to wrap in light period
Include the optical signal of two light emitting phases.The mode of the luminous duration of first light emitting phase, indicatrix and/or spectrum change rule
It is loaded with the data information of at least one set of sensor acquisition.For example, luminous duration, indicatrix and the spectrum of the first light emitting phase
It is setting.Preferably, the indicatrix of the first light emitting phase can be preset ascendant trend at any time, downward trend, strong
It spends 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 light emitting phase at any time with level off to zero candela second feature curvilinear motion or second shine
Stage does not shine.Luminous duration, indicatrix and the spectrum of the light of second light emitting phase can be setting.Second light emitting phase
Light and the light of the first light emitting phase be different.The optical signal of second light emitting phase be loaded with first sensor set mark or
Facility information.Preferably, luminous duration, indicatrix and the spectrum of the light of the second light emitting phase are settings, represent the first biography
Sensor.
In this way, the optical signal that light and shade changes is collectively formed in the first light emitting phase and the second light emitting phase in light period.Light
Signal includes several light periods, then has the variation of several light and shades, to form the optical signal of apparent stroboscopic, i.e. stroboscopic
Information.Preferably, the stroboscopic in optical signal of the invention can be people, the vision of animal and plant can perceive, can also be with
Be people, animal and plant vision can not perceive, but by setting, the stroboscopic that can detect of device.Even second feature
Curve, the detailed process of variation tendency of zero candela of leveling off to 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 light emitting phase with
There are mapping relations for categories of sensors and model, 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.For example, the second light emitting phase is the 10th of light period
~15ms, the changing rule of spectrum can be red → yellow → blue, i.e., are turned yellow light in 12ms by feux rouges, become in 14ms by yellow light
Blue light.Preferably, sensing unit can set visible light for the optical signal for carrying monitoring information, then sensing unit of the invention
Transmission of monitoring information while meeting illumination.Sensing unit can have the dual function of acquisition data and illumination, not by position
Set the limitation with place.Preferably, if the position of sensing unit setting needs to avoid visible light, optical modulator module can be used
Light modulation is carried out transmission of monitoring information for black light by 11.
Light period is divided into two light emitting phases, three even more hairs of light emitting phase by optical modulator of the invention
Photophase increases so that the indicatrix of each light emitting phase independently changes and changes dimension and Parameters variation kind in optical signal
Class improves the convenience and safety of optical transmission of information.
Preferably, light period is divided into and carries out respectively according to independent indicatrix by optical modulator module 11 of the invention
Three light emitting phases of light variation, as shown in Figure 2.Light period is 20ms, the first light emitting phase it is luminous when a length of 0~5ms,
Second light emitting phase it is luminous when a length of 5~15ms, third light emitting phase it is luminous when a length of 15~20ms.Positioned at first and
Luminous intensity/brightness variation of the indicatrix of the second light emitting phase between three light emitting phases is in decreasing trend.Preferably,
As shown in figure 3, the indicatrix of the second light emitting phase have it is a variety of, can be straight line reduction, be also possible to curve form drop
It is low.The present invention illustrates only 6 kinds in Fig. 2 and Fig. 3 therein.Those skilled in the art can be based on needing to be arranged other curves
Variation.Luminous intensity/brightness of the indicatrix of third light emitting phase is changed in a manner of zero candela or third by leveling off to
Light emitting phase does not shine.
Preferably, the second light emitting phase and third light emitting phase can be combined into the second light emitting phase, at this time two feature hairs
Light curve is the curve of consecutive variations.Otherwise, the junction of the indicatrix of the second light emitting phase and third light emitting phase is not
Continuous curve.
In early warning system of the invention, sensing unit 10 sends optical signal at least one light Transmit-Receive Unit 20.Light is received
Bill 20 pairs of reception light signal collection optical parameters of member and its feature song that changes with time, and by optical parameter and its at any time
Variation characteristic is sent to control unit 40.Control unit is according to the optical parameter of light emitting phase each in light period and its at any 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 light Transmit-Receive Unit
20 projections guidance light pattern corresponding with security level is to indicate emergency route.At this point, emergency route is corresponding with exception information
, it is preset.Guidance light pattern is to be moved to the light pattern of safety zone for guiding personnel to notify work, it is preferred that guidance
Light pattern can be to be combined by the light that multiple smooth Transmit-Receive Units 20 project jointly and be formed, and is also possible to a light Transmit-Receive Unit 20 and throws
The complete pattern projected.
Preferably, control unit 40 by monitoring information exception information and preset security level threshold value or threshold range
It is compared, so that it is determined that security level.Each security level corresponds to a kind of guidance light pattern.Control unit 40 is based on abnormal
The classification for the guidance light pattern that the security level of information selects at least one light Transmit-Receive Unit 20 to project.In this way, the work at scene
Personnel to determine urgency level and can take corresponding emergency measure according to the difference of guidance light pattern.Preferably, light is guided
The color of pattern is can be arranged according to the difference of environment.
According to a preferred embodiment, sensor unit 10 actively mentions abnormal data after collecting monitoring information
It takes and summarizes as exception information.The light period of optical signal is divided into two or three light emitting phases, at least one by sensing unit
The light of a light emitting phase is loaded with exception information with the luminous duration, indicatrix and/or the spectrum change rule that set.For example, the
The indicatrix of one light emitting phase is the curve for identifying exception information.Alternatively, the luminous duration of the light of at least one light emitting phase,
Indicatrix and/or spectrum change rule are associated with exception information list mapping.For example, the spectrum uneasiness flower of the first light emitting phase
Frequency is associated with some abnormal conditions in exception information list.The luminous duration of the last one interior light emitting 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 is corresponding according to abnormal conditions after determining abnormal conditions
Security level selection guidance light pattern classification and indicate light Transmit-Receive Unit project.
Preferably, optical modulator module 11 passes through shining for the indicatrix of at least one interior light emitting phase of setting light period
Strength Changes, duration and/or the spectrum change of shining identify the sequence of at least one monitoring information, and/or setting light period
The indicatrix of at least one interior light emitting phase is random character curve.
For example, monitoring information includes numerous data.In transmission process, optical signal can occur repeatedly to reflect, and reach light
The time of Transmit-Receive Unit 20 and sequence can change.In order to solve this problem, it is ensured that the sequence of the monitoring information finally obtained
Three light emitting phases are arranged in light period by correctness, optical modulator module of the invention.First light emitting phase and the second luminous rank
The indicatrix of section is loaded with a part of monitoring information respectively.The indicatrix of first light emitting phase can correspond to second part monitoring
The indicatrix of information, the second light emitting phase can correspond to first part's monitoring information.The indicatrix of third light emitting phase exists
Parameter or spectrum change sometime is associated with the sequence of monitoring information.For example, the indicatrix of third light emitting phase exists
The information for the first and second light emitting phase of coded representation that 3 parameters of the equispaced between 12ms and 13ms are formed it is suitable
Sequence.Preferably, which can also indicate sequence of the light period in overall data.
It is set as random character curve by the indicatrix of a light emitting phase in light period, light can be made up
The deficiency of luminous intensity of the signal in illumination avoids the insufficient adverse effect of illumination.Moreover, for needing in a manner of encryption
Random character curve can be arranged optical signal to obscure illegal third-party conjecture, prevent it by the monitoring information of transmission
The transportation law of optical signal is found to be cracked.
Therefore, early warning system of the invention also has encryption effect.Encrypted transmission mode to monitoring information of the invention
It is as follows.At this point, light Transmit-Receive Unit 20 is provided with the light modulation deciphering module 60 for decrypting 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 by optical modulator module
Several segments indicatrix is 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 light intensity parameter sometime of third light emitting phase describe encryption
The sequence of information.Preferably, the luminous intensity variations of the indicatrix of the first light emitting phase are random graph.
Preferably, optical modulator module 11 passes through shining for the indicatrix of at least one interior light emitting phase of setting 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 passes through at least one light emitting phase in analysis 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, joining the peak value of the luminous intensity of the indicatrix of the second light emitting phase as the association of information to be sent
Number, using spectrum change frequency as the order information of its information.Even if then the indicatrix of the second light emitting phase is trapped, illegally
Third party does not grasp its manner of decryption, can not Exact Solutions only in accordance with the variation tendency of the indicatrix of optical signal, delta data yet
It is close to obtain information.
For example, strong light of the optical modulator module 11 by the indicatrix of at least one light emitting phase in setting 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 passes through the luminous intensity of the indicatrix of at least one light emitting phase in analysis 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 is by being converted to light period for the electric signal of sensor
The light of interior multiple light emitting phases, and the luminous duration to each indicatrix of each light emitting phase, luminous intensity, luminous light
The parameter of spectrum could be adjusted to be formed the optical signal of encryption, and powerful data volume can effectively avoid illegal person using data solution
The close mode attempted one by one gradually cracks the cipher mode of optical information.That is, early warning system of the invention, while taking into account illumination
The early warning speed of information can either be can be improved, and project under dangerous situation with the light velocity transmission of monitoring data of encryption
The guidance light pattern that guidance personnel withdraw improves the efficiency that personnel safety is left.
Preferably, optical modulator module 11 is with light modulation deciphering module 60 to the spy of at least one light emitting phase in light period
The parameter for levying at least one dimension of curve synchronizes variation in a manner of the rolling code that synchronous counting adds one to form identification characteristics
Curve.Optical modulator module 11 is carried out with light modulation deciphering module 60 based on the matching degree of the identification characteristics curve in optical signal
Safety verification.
The indicatrix for the third light emitting phase in each light period in 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, strong light
Time where degree plus 1 or luminous intensity highest point adds 1.Light modulation deciphering module 60 to the setting of third feature curve with
The synchronous variation of the mode of rolling code, then light modulation deciphering module 60 is to the luminous rank of third in each light period of optical signal
The unduplicated indicatrix of section is able to 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 where safety verification failure, then reject
The optical signal of encryption unit, or the optical signal received is decrypted without information.
Embodiment 2
The present embodiment is the further improvement to embodiment 1, and duplicate content repeats no more.
The present embodiment provides a kind of early warning systems based on stroboscopic information.As shown in Figure 1, of the invention based on stroboscopic information
Early warning system, not only include sensing unit 10, at least one light Transmit-Receive Unit 20 and control unit 40, further include between light receive
Analytical unit 30 between bill member 20 and control unit 40.Analytical unit 30 is for being calculated and being analyzed to data.Analysis
Unit can be computer, central processing unit, microprocessor, special integrated chip, single-chip microcontroller, server, in Cloud Server
It is one or more of.
Analytical unit 30 analyzes security situation, i.e. security information based at least one monitoring information in optical signal.Peace
Full information includes at least one or more of security context situation, security level, safe emergency plan and/or emergency route.
At this point, safe emergency plan, emergency route be not preset, sensing unit is based on by analytical unit and is sent 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, analytical unit 30 by security information safe emergency plan 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 guidance light pattern.
Preferably, control unit 40 regulated and controled in a manner of sending instruction based on security information it is corresponding with home at least
The light of one light Transmit-Receive Unit 20 transmitting is to constitute the guidance pattern for adapting to different security contexts and/or emergency route.For example, having
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 methods.
The first: at least one rank that shines 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: at least one shines in the light period for the optical signal that sensing unit 10 is sent based on light Transmit-Receive Unit 20
Luminous duration, luminous intensity, spectrum change frequency and/or the spectrum change rule in stage come come select to establish with it information transmission
Sender or recipient.
For example, light period is set, the luminous duration setting of each light emitting phase, the indicatrix of the first light emitting phase contains
The curvilinear characteristic variation or spectrum change rule for having light Transmit-Receive Unit 20 that can identify, for example, containing between having time in spectrum change
Rule that red → yellow → blue variation for being divided into 1ms identifies or the light intensity parameter at 5 moment of the first light emitting phase tapers off,
Progressive law and/wait than rule and change.As long as the indicatrix of the first light emitting phase contains the specified mark of light Transmit-Receive Unit,
The optical signal that analytical unit 30 can identify the identity information for sending the sensing unit 10 of optical signal or send to sensing unit
It is authenticated, so that the sender or recipient of information transmission are established in selection with it.
Preferably, identity also can be interchanged in sensing unit 10 and light Transmit-Receive Unit 20.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 light emitting phase in the light period of optical signal
Light have identification characteristics.The sensing unit 10 of the identification characteristics can be identified after receiving optical signal, 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 authenticates feedback light
After signal, the instruction optical signal with confirmation connection is sent to sensing unit 10 again by light Transmit-Receive Unit 20, i.e. light is received and dispatched
Unit 20 establishes optical signal with sensing unit 10 and connect, and starts the transmission for being monitored information.
The third: the first light emitting phase in light period of the control unit 40 based on the received optical signal of 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 rank that shines in the light period of light signal fed back
The indicatrix of section is and connect the associated curve of grant instruction, the indicatrix and light receiving unit of at least one light emitting phase
20 light-receiving conditional information association.
For example, spy of the control unit 40 by least one interior light emitting phase of light period that analysis sensing unit 10 is fed back
The spectrum change of curve is levied to determine the matching degree between equipment.
For example, light receiving unit 20 receives the light signal fed back sent by sensing unit 10 and by the light with time correlation
Parameter is sent to analytical unit 30.Analytical 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 as the preset spectrum change for certification or matches, then sensing unit and light Transmit-Receive Unit successful match,
It can continue or send optical signal each other.If it fails to match, light Transmit-Receive Unit no longer sends any light to sensing unit
Signal, or no longer the optical signal with sensing unit mark is analyzed and interpreted.
Therefore, the present invention is encrypted information using many kinds of parameters of multiple dimensions of indicatrix, that is, ensure that communication dress
It is able to carry out mutual verifying between setting, can also guarantee the selection mechanism in message transmitting procedure to receiving end or transmitting terminal, also
It can be improved that information is encrypted to crack difficulty, additionally it is possible to guarantee that the Crypted password of optical information meets the needs of information encryption, also
It can guarantee the verifying again after information receives.
The present invention also provides with a kind of encryption method of optical information, which is characterized in that method is the following steps are included: based on extremely
The electric signal for being loaded with data information is encrypted as the first encryption pulse electrical signal by a kind of few encryption function, is based at least one light tune
First encryption pulse electrical signal is modulated to the optical signal in a light period including at least two light emitting phases by scheme processed.
Wherein, the light of at least one light emitting phase independently changes according to the indicatrix with time correlation and indicatrix and first encrypts
Pulse electrical signal is corresponding.The light of at least one light emitting phase is according to associated with the first encryption encryption function of pulse electrical signal
Indicatrix independently change.And/or the light of at least one light emitting phase is at any time to level off to the indicatrix of zero candela
Variation.
Preferably, the specific steps of the encryption method of optical information of the invention and the encrypting step of encryption system are identical, no
It repeats again.
Embodiment 3
The present embodiment is repeated no more to embodiment 1 and embodiment 2 and its further improvement combined, duplicate content.
The indicatrix variation of the optical signal of Fig. 2 to Figure 10 is described in detail in the present embodiment.Of the invention is preferred
The variation tendency of the indicatrix of first light emitting phase is as shown in Figures 2 to 4.Horizontal axis in figure indicates time, unit ms.It is vertical
Axis indicates intensity or relative intensity, and unit is unlimited, is indicated with universal notation a.u.The light period of the present embodiment is preferably
20ms, the first light emitting phase are 0~5ms, and the second light emitting phase is 5~15ms, and third light emitting phase is 15~20ms.
1-6 luminosity curve as shown in Figures 2 and 3, the luminous intensity of the first light emitting phase are constant.As shown in Figure 47
Number luminosity curve, the luminous intensity of the first light emitting phase, which has, rapidly to be risen and the variation repeatedly of dramatic decrease, but whole bent
The variation range of line is constant.No. 8 luminosity curves as shown in Figure 4, the luminous intensity of the first light emitting phase have slowly rise and
The variation repeatedly slowly declined, but integrated curved variation range is constant.No. 9 luminosity curves as shown in Figure 4, the first luminous rank
The luminous intensity of section has the variation that ladder rises and ladder declines.No. 10 luminosity curves as shown in Figure 4, the first light emitting phase
Luminous intensity have and smooth rise the peaceful variation for sliding drop.No. 11 luminosity curves as shown in Figure 4, the first light emitting phase
Luminous intensity has the variation tendency declined according to straight line.No. 12 luminosity curves as shown in Figure 4, the first light emitting phase shine
Intensity has the variation of ladder rising after first ladder decline.No. 13 luminosity curves as shown in Figure 4, the first light emitting phase shine
Intensity has the variation smoothly risen after first smooth decline.
1-6 luminosity curve as shown in Figures 2 and 3 illustrates the wherein indicatrix of several second light emitting phases
Variation.No. 1 luminosity curve as shown in Figure 2, the downward trend of the concave curve of the luminous intensity of the second light emitting phase.Such as Fig. 3
Shown in No. 2 luminosity curves, the luminous intensity of the second light emitting phase is 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 the luminous intensity of the second light emitting phase.No. 4 luminosity curves as shown in Figure 3,
The luminous intensity of second light emitting 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 light emitting phase
The downward trend of the linear curve of luminous intensity.
Fig. 5 to Figure 10 is spectrum change display diagram of the invention.Horizontal axis indicates wavelength, unit nm.The longitudinal axis indicates intensity
Or relative intensity, unit is unlimited, is indicated with universal notation a.u.
Wherein, Fig. 5 and Fig. 6 illustrates the light in six stages of A~F of the first light emitting phase of 0~5ms in light period
Spectrum.The variation sequence of spectrum is A → B → C → D → E → F.Preferably, the variation sequence of spectrum can be altered as desired.Such as Fig. 5 institute
Show, optical signal the A stage luminescent spectrum between 350~700nm of wavelength, wave crest is located at 450nm, 550nm and 650nm.
Optical signal B-stage luminescent spectrum between 350~700nm of wavelength, wave crest is located at 450nm and 550nm.Optical signal is in C
The luminescent spectrum in stage is located at 450nm and 650nm 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 between 150~800nm of wavelength, wave crest.Optical signal shines E-stage
Spectrum is located at 450nm, 650nm and 850nm between 150~900nm of wavelength, wave crest.Luminescent spectrum of the optical signal in the F stage
Between 150~900nm of wavelength, wave crest is located at 650nm and 850nm.
Wherein, Fig. 7 and Fig. 8 illustrates the light in six stages of A~F of the second light emitting phase of 10~12ms in light period
Spectrum.The variation sequence of spectrum is A → B → C → D → E → F.Preferably, the variation sequence of spectrum can be altered as desired.Such as Fig. 7 institute
Show, optical signal the A stage luminescent spectrum between 350~750nm of wavelength, wave crest is located at 550nm and 650nm.Optical signal
B-stage luminescent spectrum between 350~700nm of wavelength, wave crest is located at 550nm.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 stage 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
E-stage luminescent spectrum between 150~850nm of wavelength, wave crest is located at 650nm.Particularly, indicatrix is near 650nm
Luminous intensity rapidly rise and slowly decline.Optical signal the F stage 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 third light emitting phase of 12~15ms in light period
Spectrum.The variation sequence of spectrum is A → B → C → D → E → F.Preferably, the variation sequence of spectrum can be altered as desired.Such as Fig. 9
It is shown, optical signal the A stage luminescent spectrum between 350~750nm of wavelength, wave crest is located at 550nm, and near 550nm
Luminous intensity slowly rise with wavelength, rapidly rise closing on peak value, to slowly declining after reach to peak value.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 reach to peak value.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 reach to peak value.
As shown in Figure 10, for optical signal in the luminescent spectrum in D stage 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 reach to peak value.Optical signal is in E-stage
For luminescent spectrum between 150~850nm of wavelength, wave crest is located at 650nm, and the luminous intensity near 650nm is with wave
It is long slowly to rise, rapidly rise and closing on peak value to slowly declining after reach to peak value.Luminescent spectrum of the optical signal in the F stage 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 reach to peak value.Preferably, in D → F stage, the luminous intensity phase of E-stage peak value
To lower.
The invention also includes the indicatrix of other versions, huge number can not be shown one by one.
Embodiment 4
The present embodiment is the further improvement to embodiment 1 to 3, and duplicate content repeats no more.
A kind of method for early warning based on stroboscopic information, which is characterized 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 in light period including at least two light emitting phases, wherein is based on modulating at least one
At least one monitoring information is arranged in the mode of the luminous duration of light emitting phase, indicatrix and/or spectrum change rule, and is based on
Its luminous intensity/bright is arranged in the mode for modulating the luminous duration of at least one light emitting phase, indicatrix and/or spectrum change rule
Degree level off to zero candela variation at least one monitoring information.At at least one monitoring information at least one optical signal
When alert status, sends alarm command and control at least one light Transmit-Receive Unit projection guidance light figure corresponding with security level
Case is to indicate emergency route.
The luminous duration of the light of at least one light emitting phase, indicatrix and/or spectrum become in the light period of optical signal
Law is loaded with luminous duration, indicatrix and/or the spectrum change of exception information and/or the light of at least one light emitting phase
Rule is associated with exception information, and luminous duration, indicatrix and/or the spectrum change rule of the light of at least one light emitting 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 connect with coded lock.Light Transmit-Receive Unit 20 is interior
Lamps and lanterns.Control unit 40 and analytical unit 30 can be set in lamps and lanterns, also can be set outside lamps and lanterns.When someone prepares to open
When dynamic coded lock and password or the errors number of verification information input reach threshold value, sensing unit 10 is by exception information with invisible
Optical signal be sent 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 starting, control lamps and lanterns project light pattern and the flashing of warning.
For example, some indoor switch is provided with the sensing unit 10 of alarm.When user indoors encounter threat and not
It when just alarming, starts switch, triggers sensing unit 10, 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 and passes through network or special circuit to 110 platforms
Alarm.To complete alarm behavior in the case where letting alone illegal person.
For example, being provided with the first lamps and lanterns for being mounted with sensing unit on lathe in factory and being provided with light Transmit-Receive Unit 20
The second lamps and lanterns.First lamps and lanterns send monitoring information to the second lamps and lanterns with the optical signal of visible light, that is, meet the photograph of lathe needs
It is bright, and effectively transmit monitoring information.Analytical unit 30 is stored with early warning scheme, workshop setting information, workshop exit passageway
Etc. information.After analyzing the exception information in monitoring information, analytical unit 30 combines workshop information and exception information comprehensive
To the security level of workshop and the emergency route of personnel, to form safe early warning scheme.Analytical 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 issue 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 range and fall into this hair
Within bright protection scope.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Constitute limitations on claims.Protection scope of the present invention is defined by the claims and their equivalents.
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), which is characterized 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 light emitting phase, indicatrix and/or spectrum change rule be arranged to
A few monitoring information, and
It is arranged in the mode of luminous duration, indicatrix and/or spectrum change rule based at least one light emitting phase of modulation
Luminous intensity/brightness level off to zero candela variation at least one monitoring information,
At least one monitoring information at least one described smooth received described optical signal of Transmit-Receive Unit (20) is in abnormal
When state, described control unit (40) sends alarm command to smooth Transmit-Receive Unit (20) described at least one and controls at least one
The smooth Transmit-Receive Unit (20) projects guidance light pattern corresponding with security level.
2. early warning system as described in claim 1, which is characterized in that at least one shines in the light period of the optical signal
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 light emitting phase are loaded with exception information, and/
Or
Luminous duration, indicatrix and/or the spectrum change rule of the light of at least one light emitting phase are associated with exception information,
Described control unit (40) selects at least one described smooth Transmit-Receive Unit (20) based on the security level of the exception information
The classification of the guidance light pattern of projection.
3. early warning system as claimed in claim 2, which is characterized in that light period is divided by the optical modulator module (11)
Carry out three light emitting phases of light variation respectively according to independent indicatrix,
Wherein,
Luminous intensity/brightness variation of the indicatrix of the second light emitting phase between first and third light emitting phase is in
Decreasing trend,
Luminous intensity/brightness of the indicatrix of third light emitting phase is changed in a manner of zero candela or third by leveling off to
Light emitting phase does not shine.
4. the early warning system as described in one of claims 1 to 3, which is characterized in that the optical modulator module (11) passes through setting
The luminous intensity variations of the indicatrix of at least one light emitting phase, the duration that shines and/or spectrum change are marked in light period
Know the sequence of at least one monitoring information, and/or
The indicatrix that at least one light emitting phase light period Nei is arranged is random character curve.
5. early warning system as claimed in claim 1 or 2, which is characterized in that the early warning system further includes receiving between the light
Analytical unit (30) between bill member (20) and described control unit (40),
The analytical unit (30) is analyzed based at least one monitoring information in the optical signal including at least security context
Situation, security level, 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, which is characterized 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
At the guidance pattern for adapting to different security contexts and/or emergency route, and/or
Described control unit (40) sends dependent instruction to corresponding sound prewarning unit (50) to carry out phonetic warning.
7. early warning system as claimed in claim 1 or 2, which is characterized in that the sensing unit (10) and light transmitting-receiving are single
The mode that first (20) establish a connection includes:
At least one shines in the light period for the optical signal that described control unit (40) is sent based on the sensing unit (10)
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 to establish with it information pass
Defeated sender or recipient.
8. early warning system as claimed in claim 1 or 2, which is characterized in that the sensing unit (10) and light transmitting-receiving are single
The mode that first (20) establish a connection includes:
Described control unit (40) is based on the first luminous rank in the light period of the received optical signal of the smooth Transmit-Receive Unit (20)
The optical parameter and optical parameter threshold value of section select at least one sensing unit (10), and indicate 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 light emitting phase is and connect grant instruction association in the light period of the light signal fed back
Curve, the indicatrix of at least one light emitting phase is associated with the light-receiving conditional information of the smooth Transmit-Receive Unit (20).
9. a kind of method for early warning based on stroboscopic information, which is characterized 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 in light period including at least two light emitting phases, wherein
Based on the mode for modulating the luminous duration of at least one light emitting phase, indicatrix and/or spectrum change rule be arranged to
A few monitoring information, and
It is arranged in the mode of luminous duration, indicatrix and/or spectrum change rule based at least one light emitting phase of modulation
Luminous intensity/brightness level off to zero candela variation at least one monitoring information,
When at least one monitoring information at least one described optical signal is in alert status, sends alarm command and control
At least one light Transmit-Receive Unit (20) projects guidance light pattern corresponding with security level to indicate emergency route.
10. method for early warning as claimed in claim 9, which is characterized 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 light emitting phase are associated with exception information,
The equipment that luminous duration, indicatrix and/or the spectrum change rule of the light of at least one light emitting phase are loaded with sensor
Information and/or device identification.
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| CN102411923B (en) * | 2011-11-25 | 2012-09-26 | 合肥工业大学 | Single-port driving method and circuit for passive buzzer and light-emitting diode (LED) |
| CN106501809A (en) * | 2015-09-06 | 2017-03-15 | 北醒（北京）光子科技有限公司 | A kind of infrared distance measurement and fault avoidnig device for smart machines such as unmanned plane, unmanned vehicle and walking robots |
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| CN106409004A (en) * | 2016-11-04 | 2017-02-15 | 陈炜杰 | System capable of applying optical communication to parking lot management and working method thereof |
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