CN2630844Y - Expressway visibility monitor - Google Patents
Expressway visibility monitor Download PDFInfo
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- CN2630844Y CN2630844Y CN 03264785 CN03264785U CN2630844Y CN 2630844 Y CN2630844 Y CN 2630844Y CN 03264785 CN03264785 CN 03264785 CN 03264785 U CN03264785 U CN 03264785U CN 2630844 Y CN2630844 Y CN 2630844Y
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Abstract
The utility model relates to a visibility monitor for an expressway, which comprises an ejector (1) and an acceptor (2), wherein the ejector (1) comprises a housing (17), a laser (11), a collimating lens (12), a laser regulating plate (15) and an io sensor (13). A laser beam ejected by the laser (11) through the collimating lens (12) penetrates through a light through hole on the laser regulating plate (15) and directly radiates on an acceptor (12) or refracts onto the io sensor (13) through the laser regulating plate (15). The main board circuit (18) of the acceptor (2) is separately connected to a signal processing circuit (19), a power board circuit (20) and a communicating board circuit (21). A laser power il sensor (22) and a background light ib sensor (23) are separately connected to the signal processing circuit (19). The visibility monitor for an expressway has the advantages of strong penetrating power, far measured distance, easy focusing, low power consumption, small volume, simple structure, and stable, accurate and reliable work.
Description
Technical field
The utility model relates to the device that a kind of electronic device field is used to monitor highway visibility, particularly relates to a kind ofly monitoring the especially visibility of inclement weather highway, the highway visibility monitor of guarantee channel road safety.
Background technology
At present, highway has become the main thoroughfare of communications and transportation, but under the atrocious weather situation, especially thick fog weather can cause highway visibility sharply to descend, and very easily causes the generation of car accident, causes tremendous loss for the people's life and property.In order to monitor the weather condition in each highway section of highway in real time, in time make forecast, with the generation that reduces and avoid traffic accident, existing highway visibility monitoring device is to utilize infrared light scattering to monitor the variation of weather, this device wavelength is long partially to have deviation with meteorological optical range (human eye scope), needs just imitating; And the coverage of diffuse transmission type is very little, and repeatability is relatively poor, and cost is also higher.
This shows that above-mentioned existing highway visibility monitoring device still has many defectives, and the assistant officer waits to be improved.
Because the defective that above-mentioned existing highway visibility monitoring device exists, the design people is based on being engaged in this type of product design manufacturing for many years, amassing has abundant practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of highway visibility monitor that improves molding structure, can improve the general molding structure of existing conventional highway visibility monitoring device on the market, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
The utility model content
Technical problem underlying to be solved in the utility model is, overcome the defective that existing highway visibility monitoring device exists, and provide a kind of highway visibility monitor of new structure, make it can monitor the Changes in weather in each highway section of highway in real time, in time make accurate forecast, with the generation that reduces and avoid traffic accident.
Another technical matters to be solved in the utility model is, a kind of highway visibility monitor of new structure is provided, make its visibility monitor have simple in structure, and good cheaply effect, and has practicality more, and can increase economic efficiency greatly, thereby have the effect of enhancement on the whole, and have the value on the industry.
The utility model solves its technical problem underlying and realizes by the following technical solutions.Highway visibility monitor according to the utility model proposes comprises transmitter 1 and receiver 2, it is characterized in that:
Described receiver 2 comprises casing 17A, motherboard circuit 18, signal processing circuit 19, power panel circuit 20, communication board circuit 21, laser power il sensor 22, bias light ib sensor 23; Described motherboard circuit 18 is connected with signal processing circuit 19, power panel circuit 20, communication board circuit 21 respectively through interface slot, interface plug; Described laser power il sensor 22, bias light ib sensor 23 are connected with signal processing circuit 19 respectively.
Light hole on the described Laser Modulation sheet 15 is spacedly distributed.
The utility model solves its technical matters and can also adopt following technical measures further to realize.
Preceding described casing is double-deck hollow structure.
Preceding described motherboard circuit is interconnected and is formed by 80C552 single-chip microcomputer (IC1), 8D latch 54HC573 (IC2), clock chip DS12C887 (IC3), code translator 54HC138 (IC4), the chip TL7705 (IC5) that resets, four Sheffer stroke gate 54HC00 (IC6), energy gap power supply chip MC1403 (IC7), program storage 27128 (IC8), data-carrier store 62256 (IC9, IC10) and crystal oscillator, diode, resistance, electric capacity.
Preceding described signal-processing board circuit is formed io signal front end circuit jointly by amplifier U1 and R1, R2, RSO, E1, E2, laser power io sensor IODC; Double operational U2 and R3, R4, R5, R6, R7, R8, R9, EZ1 form precision rectifer jointly; Amplifier U3 and R10, R11, RS1, E3, E4, laser power il sensor I1DC form il signal front end circuit jointly; Double operational U4 and R12, R13, R14, R15, R16, R17, R18, EZ2 form precision rectifer jointly; Double operational U5B and R19, RW3, PW3, E5, E6, bias light sensor BDC form environmental background light intensity ib sensor signal amplifying circuit and double operational U5A and RT*, temperature sensor TCZ jointly and form ambient temperature signal amplifying circuit composition jointly.
Preceding described power panel circuit is to insert input by the alternating voltage of two-way 7.5V from the ACCZ line, through D1, D2, D3, D4 rectification, and E1, E2, E3, E4, C1, C2, C3, C4 filtering, M1, M2, M3, M4 voltage stabilizing form two groups of direct supplys.
Before described communication board circuit be to be interconnected to constitute the analog-modulated demodulator circuit by modem chip MC145442 (IC1) and transformer, voltage stabilizing diode, resistance, electric capacity; Be interconnected to constitute the optical modulation demodulator circuit by level translator MAX232 (IC2) and voltage stabilizing diode, electric capacity.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the utility model highway visibility monitor adopts the laser monitoring technology, and it is strong to have penetration power, far measuring distance, and easily standard is imitated in focusing, and low in energy consumption, volume is little, and is simple in structure; The monitoring part is used modular design, is convenient to safeguard, expand; Relatively flexibly, can be used for wire transmission module and wireless transport module in the transmission, the utility model working stability accurately and reliably.
The highway visibility monitor that the utility model improves molding structure can reach Stability Analysis of Structures, be suitable for practical effect, and has bigger economic benefit, and has industrial utilization widely really.It does not have the existing defective of existing highway visibility monitoring device in use fully, and can should this can reach suitable practicality, and have the extensive value on the industry so that the utility model structure more firmly reaches changeableization,
The utility model is on the practicality and cost benefit of structural design, use, really it is required to meet industry development fully, and disclosed structure is unprecedented innovative design, it does not see any publication, do not see more that before application that identical architectural feature is arranged is known, formerly public, and also not seeing on the market has similar products like, and has novelty really.
Structure of the present utility model really has more the technology property advanced than existing highway visibility monitoring device, and its particular structure feature and more can also be far from existing highway visibility monitoring device and can compare, more existing highway visibility monitoring device has more technical progress, and have the multinomial effect of enhancement, and creative really.
The utility model designer develops the existing experience for many years of this series products, quite understand for existing existing problem of highway visibility monitoring device and defective, and the utility model is to found according to above-mentioned Study of Defects exploitation, it can reach its intended purposes and effect really, not only on the kenel of space, really belong to innovation, and the true accessory of more existing highway visibility monitoring device has suitable enhancement effect, and existing known product has more technical progress and practicality, and produced handy and practical good effect, and have practicality really.
In sum, the utility model really belongs to innovation on the kenel of space, and has the multinomial effect of enhancement than existing product, and simple in structure, is suitable for practicality, has the extensive value of industry.It is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solutions of the utility model feature, for making the professional and technical personnel can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the utility model highway visibility monitor block diagram.
Fig. 2 is the utility model highway visibility monitor transmitter block diagram.
Fig. 3 is the utility model highway visibility monitor Laser Modulation synoptic diagram.
Fig. 4 is the utility model highway visibility monitor receiver block diagram.
Fig. 5 is the utility model highway visibility monitor acceptor circuit composition that hardens.
Fig. 6 is the utility model highway visibility monitor motherboard circuit schematic diagram.
Fig. 7 is the utility model highway visibility monitor signal disposable plates circuit theory diagrams.
Fig. 8 is the utility model highway visibility monitor power panel circuit theory diagrams.
Fig. 9 is the utility model highway visibility monitor communication board circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
1. transmitter 2. receivers
3. laser beam 4. bias light sensors
5.io signal wire 6. power leads
7. telephone wire or optical fiber 8. power leads
9. parallax range L 10. keyboards and LCD interface
11. laser instrument 12. collimation lenses
13.io sensor 14. modulating motors
15. Laser Modulation sheet 16. laser power supplies
17. casing 18. main circuits
19. signal processing circuit 20. power circuits
21. telecommunication circuit 22. laser power il sensors
23. bias light ib sensor 24. mainboards
25. signal-processing board 26. power panels
27. communication board
See also shown in Figure 1, the utility model highway visibility monitor comprises transmitter 1 and receiver 2 two parts, the laser beam 3 that transmitter 1 is launched, after medium (air, droplet, dust, raindrop and the smog etc.) decay of the parallax range L9 thickness between transmitter and the receiver, receive by receiver 2.Laser emitting luminous power io is by the io sensor monitors in the transmitter, and send receiver to by io signal wire 5, luminous power il after the laser beam decay is by the il sensor monitors of receiver, Microcomputer Calculation obtains laser transmittance il/io, and then try to achieve the visibility indicating value, receiver is the background light intensity of monitoring of environmental simultaneously, is used to revise visibility numerical value.Power lead 6,8 is given the power supply of transmitter and receiver respectively, and telephone wire or optical fiber 7 are used for communication.LCD interface 10 can connect display at any time, is used to debug monitor.
See Fig. 2, shown in Figure 3, the laser that laser instrument 11 sends is parallel laser beam 3 by collimation lens 12 optically focused, be modulated into the pulse laser beam of certain frequency through modulating motor 14, Laser Modulation sheet 15 edges of light uniformly-spaced are furnished with unthreaded hole, laser beam 3 is by light hole, when laser beam is blocked when reflexing to io sensor 13 simultaneously, obtains laser emitting power io, laser power supply 16 is steady merit power supply, has certain stability to guarantee laser power.Casing 17 is double-deck hollow structure, reduces heat conduction.
See Fig. 4, shown in Figure 5, motherboard circuit 18 includes the 80C552 single-chip microcomputer, the edge of mainboard 24 is furnished with interface slot AIN, POWER and the SIO of three 30 lines, signal-processing board 25, power panel 26 and 27 3 wiring board edges of communication board are provided with interface plug, corresponding with interface slot, can distinguish and vertically insert interface slot, identical wire size links to each other, be connected with the electric signal of mainboard with realization, this kind structure is convenient to debugging and maintenance.Spatial structure sees for details shown in Figure 5.
See shown in Figure 6, motherboard circuit schematic diagram IC1 is the 80C552 single-chip microcomputer, include 8 path 10 position A/D, watchdog circuit, 68 I/O mouths, the P0 mouth provides the data/address bus AD0～AD7 of system, the P2 mouth provides the most-significant byte address wire A8～A15 of system, ADC0～ADC7 is 8 road input signal cables of modulus converter A/D, signal-processing board is delivered to mainboard with the electric signal of three tunnel light intensity io, il, ib through the slot AIN of 30 lines line, change by A/D, the CPU computing, obtain the visibility data, and storage.
Chip 54HC573 (IC2) is the 8D latch, is used to latch the address signal of the P0 mouth output of IC1, forms the least-significant byte address wire A0～A7 of system.
Mainboard expands 1 clock chip DS12C887 (IC3), is used for determining time reference and data markers.
54HC138 (IC4) is the 3-8 code translator, and its input A, B, C link to each other with system address A13, A14, A15 respectively, calculated address chip selection signal Y0, Y1, Y2, Y3, the address realm of each chip selection signal control 8kbyte.
TL7705 (IC5) and C7, R3, C5, E1, the strong RESTCZ that resets form reset circuit, realize electrification reset, line under-voltage resets and hand-reset.
54HC00 (IC6) is four Sheffer stroke gates, is used for the address bus and the control bus decoding of system.
MC1403 (IC7) is the energy gap power supply chip, 1 pin input 5V, and 2 pin output 2.5V is for the analog to digital converter among the IC1 provides reference power source.
Mainboard has 1 program storage 27128 (IC8), and program is for 16kbyte; 2 data-carrier stores 62256 (IC9, IC10) are arranged,, can store 30 days visibility data, for inquiry for 64kbyte.
It is the lattice lcd interface that the double line of 16 lines is inserted XSCZ, is used to connect LCD.It is keyboard interface that the double line of 10 lines is inserted KEYCZ, can connect keyboard in addition.
5PIN (R5) is the resistor chain of 5 * 10K, is the keyboard chord (pull down resistor of B0～B3).
9PIN (R6) is the resistor chain of 9 * 10K, is the system data bus (pull down resistor of D0～D7).
3PIN (ROMSET) is that inside and outside program storage is selected: 1-2 internal program storer; The outer program storage of 2-3.
3PIN (DOGSET) selects for " house dog " enables: 1-2 is invalid; 2-3 is effective.
2PIN (RESTCZ) is strong for system reset.
The slot AIN of 30 lines is used to connect the signal-processing board circuit.Connect one to one with the pin of the plug AIN of 30 lines of signal-processing board circuit.Referring to Fig. 7 signal-processing board circuit theory diagrams.
The slot POWER of 30 lines is used to connect the power panel circuit.Connect one to one with the pin of the plug POWER of 30 lines of power panel circuit.Referring to Fig. 8 power panel circuit theory diagrams.
The slot SIO of 30 lines is used to connect the communication board circuit.With 30 lines of communication board circuit " pin of plug SIO connects one to one.Referring to Fig. 9 communication board circuit theory diagrams.
See shown in Figure 7, signal-processing board circuit theory diagrams amplifier U1 and R1, R2, RSO, E1, E2, laser power io sensor IODC form io signal front end circuit jointly, this circuit is the pulse laser response to modulating only, and output square wave, its square wave amplitude is with to receive laser power proportional, and non-modulation parasitic light, bias light etc. are not had response, disturb to remove.Double operational U2 and R3, R4, R5, R6, R7, R8, R9, EZ1 form precision rectifer jointly, with square-wave variations is direct current, i.e. signal AINO sees the 7th pin of operational amplifier U2B, it is linked the 28th line among " golden finger " plug AIN of 30 lines, delivers to mainboard for the A/D conversion.
Amplifier U3 and R10, R11, RS1, E3, E4, laser power il sensor I1DC form il signal front end circuit jointly, this circuit is the pulse laser response to modulating only, and output square wave, its square wave amplitude is with to receive laser intensity proportional, and non-modulation parasitic light, bias light etc. are not had response, disturb to remove.Double operational U4 and R12, R13, R14, R15, R16, R17, R18, EZ2 form precision rectifer jointly, with square-wave variations is direct current, i.e. signal AIN1 sees the 7th pin of operational amplifier U4B, it is linked the 26th line among the plug AIN of 30 lines, delivers to mainboard for the A/D conversion.
Double operational U5B and R19, RW3, PW3, E5, E6, bias light sensor BDC form environmental background light intensity ib sensor signal amplifying circuit jointly, be output as direct current signal, be signal AIN2, see the 7th pin of operational amplifier UB5, it is linked the 24th line among the plug AIN of 30 lines, delivers to mainboard for the A/D conversion.
Double operational U5A and RT*, temperature sensor TCZ form the ambient temperature signal amplifying circuit jointly, are output as direct current signal, i.e. signal AIN3 sees the 1st pin of operational amplifier U5A, and it is linked the 22nd line among the plug AIN of 30 lines, delivers to mainboard for the A/D conversion.
The plug AIN of 30 lines is used to realize that signal-processing board inserts host slot AIN.The pin of motherboard circuit slot AIN and signal-processing board circuit plug AIN connects one to one.Referring to accompanying drawing 6 motherboard circuit schematic diagrams.
See shown in Figure 8ly, the alternating voltage of power panel circuit theory diagrams two-way 7.5V is inserted input from the ACCZ line, through D1, D2, D3, D4 rectification, and E1, E2, E3, E4, C1, C2, C3, C4 filtering, M1, M2, M3, M4 voltage stabilizing form two groups of direct supplys.First group of VCC, GND and-5 are the system digits circuit supply.Second group of VDD, AGND and VEE are the system simulation circuit supply.
First group of power supply VCC is connected in the 27th～30 line of plug POWER, and GND is connected in the 23rd～26 line of plug POWER, and-5 are connected in the 21st～22 line of plug POWER.
Second group of power vd D is connected in the 9th～12 line of plug POWER, and AGND is connected in the 5th～8 line of plug POWER, and VEE is connected in the 1st～4 line of plug POWER.
The plug POWER of 30 lines is used to realize that power panel inserts host slot POWER.The pin of motherboard circuit slot POWER and power panel circuit plug POWER connects one to one.Referring to accompanying drawing 6 motherboard circuit schematic diagrams.
See shown in Figure 9ly, the communication board circuit theory diagrams are two kinds of schemes:
A kind of is the analog-modulated demodulation scheme.Integrated circuit (IC) 1 chip MC145442 is a modem chip, can with the single-chip microcomputer direct interface, be the sound signal that is suitable for the telephone wire transmission with the serial digital signal of communication modulation conversion of Transistor-Transistor Logic level.The serial digital signal of communication that the sound signal demodulation of telephone wire transmission can be converted to Transistor-Transistor Logic level again receives for single-chip microcomputer.Sound signal is inserted PHOCZ by line and is inserted telephone line.
Another kind of is the optical modulation demodulation scheme.Integrated circuit (IC) 2 chip MAX232 are the level conversion device, can realize the bi-directional conversion between Transistor-Transistor Logic level conversion and the RS232 interface standard level signal, and 10 line socket RS232 connect commercial optical modem outward among the figure, insert optical cable again.
The plug SIO of 30 lines is used to realize that communication board inserts host slot SIO.The pin of motherboard circuit slot SIO and communication board circuit " golden finger " plug SIO connects one to one.Referring to accompanying drawing 6 motherboard circuit schematic diagrams.
Principle of work:
See accompanying drawing 7, laser emitting power io sensor (IODC) is a photoelectric cell, and its output current is directly proportional with the light intensity that receives, and it is in parallel with a little resistance resistance R SO at this, and forming voltage signal is IO
+-IO
-, because be modulated laser, so voltage signal IO
+-IO
-Be pulse signal, this signal forms square-wave signal through E1, E2, R1, R2, U1, and its amplitude is directly proportional with the laser emitting power that sensor IODC receives.
Laser power il sensor (I1DC) is all photoelectric cell with laser emitting power io sensor (IODC) in the receiver, and it is in parallel with a little resistance resistance R S1, and forming voltage signal is I1
+-I1
-, voltage signal I1 in like manner
+-I1
-Be pulse signal, this signal forms square-wave signal through E3, E4, R10, R11, U3, and its amplitude is directly proportional with the laser power that sensor I1DC receives.
The transmitter emitted laser, by laser emitting power io sensor monitors, laser is behind the air dielectric of parallax range L thickness, by laser power il sensor monitors in the receiver.
When droplet, dust, raindrop and smog equal size are very low in the air, air laser transmittance il/io=1, along with droplet, dust, raindrop and smog equal size in the air increase, laser light scattering strengthens, in the receiver laser power il sensor to luminous power weaken, il reduces, and air laser transmittance il/io＜1 can reduce by degree of opinion.
Air visibility V=f (il/io), promptly air visibility is air laser transmittance il/io function, and the air laser transmittance was near 1 o'clock, and air visibility maximum also diminishes along with the air laser transmittance reduces air visibility.
Bias light ib is used to imitate positive air visibility, and the same air following daytime of laser transmittance and the visibility on night have significant difference.So it is essential that monitoring bias light ib is imitated positive air visibility.
(il/io, ib), the accurate expression of this formula needs to establish by experiment but above relational expression combined statement is shown V=f.
The computing of above-mentioned expression formula is finished by the single-chip microcomputer in the mainboard.Its monitoring is real-time with computing, and finishes band markers storage air visibility data and transmit data to host computer.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Main components and parts detail list
1. motherboard circuit components and parts
| Sequence number | Label | Device name | Remarks | |
| 1 | IC1 | 80C552 | Single- | |
| 2 | IC2 | 54HC573 | | |
| 3 | IC3 | | Clock chip | |
| 4 | IC4 | 54HC138 | The 3-8 | |
| 5 | IC | TL7705 | Chip resets |
| 6 | | 54HC00 | 4 | |
| 7 | IC7 | MC1403 | The energy gap | |
| 8 | | 27C128 | 16kbyteROM | |
| 9 | | 62256 | 32kbyteROM | |
| 11 | AIN | " golden finger " slot of 30 | ||
| 12 | POWER | " golden finger " slot of 30 | ||
| 13 | SIO | " golden finger " slot of 30 | ||
| 14 | | LCD interface | ||
| 15 | KEYCZ | Keyboard interface |
2. signal-processing board circuit elements device
| Sequence number | Label | Device name | Remarks | |
| 1 | U1 | | Instrument amplifier | |
| 2 | U2 | LM158 | Double operational | |
| 3 | U3 | | Instrument amplifier | |
| 4 | U4 | LM158 | Double operational | |
| 5 | U5 | AM158 | Double operational | |
| 6 | IODC | Photoelectric cell | Monitoring laser emitting | |
| 7 | I1DC | Photoelectric cell | Power il behind the | |
| 8 | BDC | Photoelectric cell | Monitoring of environmental bias | |
| 9 | TCZ | Thermistor | The monitoring of | |
| 10 | AIN | " golden finger " plug of 30 lines | Connect signal-processing board and mainboard |
3. power panel circuit elements device
| Sequence number | Label | Device name | Remarks | |
| 1 | M1、M2 | MC7805T | The positive voltage | |
| 2 | M3、M4 | MC7905T | The negative voltage | |
| 3 | D1～D4 | | Commutation diode | |
| 4 | | 3 line sockets | Two 7.5 | |
| 5 | E1～E4 | | Filtering | |
| 6 | C1～C4 | Leaded multilayer | Filtering |
| 7 | POWER | " golden finger " plug of 30 lines | Connect power panel and mainboard |
4. communication board circuit elements device
| Sequence number | Label | Device name | Remarks | |
| 1 | IC1 | | Modem chip | |
| 2 | IC2 | MAX232 | TTL and RS232 level translator | |
| 3 | T | Audio-frequency transformer (AFT) | ||
| 4 | | 2 line telephone line interfaces | Be connected with | |
| 5 | RS232 | The RS232 interface | Be connected with | |
| 6 | SIO | " golden finger " plug of 30 lines | Connect communication board and mainboard |
Claims (7)
1, a kind of highway visibility monitor comprises transmitter (1) and receiver (2), it is characterized in that:
Laser Modulation sheet (15), io sensor (13) that described transmitter (1) comprises casing (17), laser instrument (11), collimation lens (12), driven by modulating motor (14); Has light hole spaced apart on the described Laser Modulation sheet (15), described collimation lens (12) is positioned at the transmitting terminal of described laser instrument (11), the laser beam that described laser instrument (11) penetrates through collimation lens (12) is passed the light hole on the Laser Modulation sheet (15), direct projection is arrived on the receiver (2), or is refracted on the io sensor (13) through tilted-putted Laser Modulation sheet (15);
Described receiver (2) comprises casing (17A), motherboard circuit (18), signal processing circuit (19), power panel circuit (20), communication board circuit (21), laser power i1 sensor (22), bias light ib sensor (23); Described motherboard circuit (18) is connected with signal processing circuit (19), power panel circuit (20), communication board circuit (21) respectively through interface slot, interface plug; Described laser power il sensor (22), bias light ib sensor (23) are connected with signal processing circuit (19) respectively.
2, highway visibility monitor according to claim 1, it is characterized in that: the light hole on the described Laser Modulation sheet (15) is spacedly distributed.
3, highway visibility monitor according to claim 2 is characterized in that wherein said casing is double-deck hollow structure.
4, highway visibility monitor according to claim 1 is characterized in that wherein said motherboard circuit is interconnected and formed by 80C552 single-chip microcomputer (IC1), 8D latch 54HC573 (IC2), clock chip DS12C887 (IC3), code translator 54HC138 (IC4), the chip TL7705 (IC5) that resets, four Sheffer stroke gate 54HC00 (IC6), energy gap power supply chip MC1403 (IC7), program storage 27128 (IC8), data-carrier store 62256 (IC9, IC10) and crystal oscillator, diode, resistance, electric capacity.
5, highway visibility monitor according to claim 4 is characterized in that wherein said signal-processing board circuit forms io signal front end circuit jointly by amplifier U1 and R1, R2, RSO, E1, E2, laser power io sensor IODC; Double operational U2 and R3, R4, R5, R6, R7, R8, R9, EZ1 form precision rectifer jointly; Amplifier U3 and R10, R11, RS1, E3, E4, laser power il sensor I1DC form il signal front end circuit jointly; Double operational U4 and R12, R13, R14, R15, R16, R17, R18, EZ2 form precision rectifer jointly; Double operational U5B and R19, RW3, PW3, E5, E6, bias light sensor BDC form environmental background light intensity ib sensor signal amplifying circuit and double operational U5A and RT*, temperature sensor TCZ jointly and form ambient temperature signal amplifying circuit composition jointly.
6, highway visibility monitor according to claim 5, it is characterized in that wherein said power panel circuit is to insert input by the alternating voltage of two-way 7.5V from the ACCZ line, through D1, D2, D3, D4 rectification, E1, E2, E3, E4, C1, C2, C3, C4 filtering, M1, M2, M3, M4 voltage stabilizing form two groups of direct supplys.
7, highway visibility monitor according to claim 6 is characterized in that wherein said communication board circuit is to be interconnected to constitute the analog-modulated demodulator circuit by modem chip MC145442 (IC1) and transformer, voltage stabilizing diode, resistance, electric capacity; Be interconnected to constitute the optical modulation demodulator circuit by level translator MAX232 (IC2) and voltage stabilizing diode, electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264785 CN2630844Y (en) | 2003-06-24 | 2003-06-24 | Expressway visibility monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264785 CN2630844Y (en) | 2003-06-24 | 2003-06-24 | Expressway visibility monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630844Y true CN2630844Y (en) | 2004-08-04 |
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ID=34297495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264785 Expired - Fee Related CN2630844Y (en) | 2003-06-24 | 2003-06-24 | Expressway visibility monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630844Y (en) |
Cited By (7)
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| CN102721648A (en) * | 2012-07-11 | 2012-10-10 | 吉林大学 | Vehicle-mounted mobile device for detecting visibility of foggy weather and detecting method thereof |
| CN103325261A (en) * | 2012-03-23 | 2013-09-25 | 成都驹涛网络科技有限公司 | Road icing alerter with temperature change visual display function |
| CN104777527A (en) * | 2015-04-20 | 2015-07-15 | 深圳大舜激光技术有限公司 | Visibility calibration device |
| CN109085099A (en) * | 2018-08-15 | 2018-12-25 | 深圳源创智能照明有限公司 | The application of visibility sensor, visibility detecting method and visibility sensor |
| CN112055446A (en) * | 2019-05-20 | 2020-12-08 | 光宝电子(广州)有限公司 | Visibility meter, visibility measuring method, street lamp device and operation method thereof |
| WO2021088146A1 (en) * | 2019-11-04 | 2021-05-14 | 苏州斯威高科信息技术有限公司 | Highway comprehensive meteorological detection device and detection method therefor |
| US11255781B2 (en) | 2019-05-20 | 2022-02-22 | Lite-On Electronics (Guangzhou) Limited | Visibility meter, street light device and operation method thereof |
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2003
- 2003-06-24 CN CN 03264785 patent/CN2630844Y/en not_active Expired - Fee Related
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| CN103325261A (en) * | 2012-03-23 | 2013-09-25 | 成都驹涛网络科技有限公司 | Road icing alerter with temperature change visual display function |
| CN102721648A (en) * | 2012-07-11 | 2012-10-10 | 吉林大学 | Vehicle-mounted mobile device for detecting visibility of foggy weather and detecting method thereof |
| CN102721648B (en) * | 2012-07-11 | 2014-07-02 | 吉林大学 | Vehicle-mounted mobile device for detecting visibility of foggy weather and detecting method thereof |
| CN104777527A (en) * | 2015-04-20 | 2015-07-15 | 深圳大舜激光技术有限公司 | Visibility calibration device |
| CN104777527B (en) * | 2015-04-20 | 2018-09-28 | 深圳大舜激光技术有限公司 | A kind of visibility caliberating device |
| CN109085099A (en) * | 2018-08-15 | 2018-12-25 | 深圳源创智能照明有限公司 | The application of visibility sensor, visibility detecting method and visibility sensor |
| CN109085099B (en) * | 2018-08-15 | 2021-06-11 | 深圳源码智能照明有限公司 | Visibility sensor, visibility detection method and application of visibility sensor |
| CN112055446A (en) * | 2019-05-20 | 2020-12-08 | 光宝电子(广州)有限公司 | Visibility meter, visibility measuring method, street lamp device and operation method thereof |
| TWI750520B (en) * | 2019-05-20 | 2021-12-21 | 大陸商光寶電子（廣州）有限公司 | Visibility meter, visibility measurement method, and street light device and operation method thereof |
| US11255781B2 (en) | 2019-05-20 | 2022-02-22 | Lite-On Electronics (Guangzhou) Limited | Visibility meter, street light device and operation method thereof |
| CN112055446B (en) * | 2019-05-20 | 2023-04-07 | 光宝电子(广州)有限公司 | Visibility meter, visibility measuring method, street lamp device and operation method thereof |
| WO2021088146A1 (en) * | 2019-11-04 | 2021-05-14 | 苏州斯威高科信息技术有限公司 | Highway comprehensive meteorological detection device and detection method therefor |
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