CN103354014B - Road traffic guardrail intelligence management system - Google Patents
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Abstract
The invention provides a road traffic guardrail intelligence management system. The system comprises guardrail monitoring units and camera shooting transmission units. There are at least three guardrail monitoring units. The guardrail monitoring units are dispersively and fixedly arranged on stand columns of an isolation guardrail in the middle of the road and are located on middle-upper portions of the stand columns of the guardrail. There are at least more than one camera shooting transmission units. Each guardrail monitoring unit comprises a detection circuit, a signal amplification filter circuit, a signal processing control circuit, a location/clock circuit, a signal amplification emission circuit and a power supply module. Each camera shooting transmission unit comprises a signal receiving module, a camera shooting trigger control module, a camera shooting device, a signal processing control module, a location/clock circuit module, a signal emission module and the power supply module. By using the system of the invention, the structure is simple; installation is convenient; cost is low; power saving is achieved and a service life is long; working reliability is high; real-time performance and effectiveness of a traffic management scheduling center which processes a fault of the road guardrail can be effectively increased; generations of traffic accidents are reduced.
Description
Technical field
The present invention relates to road traffic facility management system, be specifically related to a kind of road traffic guardrail intelligence management system.
Background technology
On the traffic route such as traffic above-ground arterial highway in city, the traffic guardrail application be arranged in the middle of road is very general.Traffic guardrail to the vehicle of isolation and separately relative traveling, prevent pedestrian and non motorized vehicle jaywalk etc. from having obvious effect, irreplaceable effect is played to urban road traffic safety.But, road guard also exist because of touched by vehicle blow topple over, inclement weather time a variety of causes such as to be blown down by strong wind and cause collapsing of road traffic guardrail, and once traffic guardrail collapses, if can not by relevant departments' Timeliness coverage and management maintenances such as traffic administrations, then very easily cause traffic hazard, cause the unnecessary loss of the lives and properties of the people.Therefore, the management of urban highway traffic guardrail seems very important, can be found in time and be maintained process, have great significance to the traffic safety in city when road traffic guardrail is toppled over.The mode of method many employings labor management of traditional maintenance management to road traffic guardrail, causes and pinpoints the problems seriously delayed, bring serious hidden danger to traffic safety.At present, also have and adopt the technology of intelligent monitoring means to because colliding the guardrail that causes problem of collapsing, as application publication number be CN102063780A, name is called the Chinese patent literature of " highway guardrail impact location and warning system and method based on technology of Internet of things ", it discloses a kind of to road traffic guardrail because of clash into topple over the real-time monitoring positioning alarm system taked, mainly based on Internet of Things transmission information, on-site terminal adopts the mode of poll to detect to each monitoring module.The weak point of this system is: complicated structure, and cost is higher, and adopts the mode of poll, and system components is in running order all the time, cause the waste of electric energy and equipment easily aging, break down.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, provide that a kind of structure is simple, easy for installation, cost is lower and automatically upload the road traffic guardrail intelligence management system of warning message when toppling over appears in guardrail in real time.
Technical scheme of the present invention is: road traffic guardrail intelligence management system of the present invention, and its design feature is: comprise guardrail monitoring means and shooting transmission unit; Above-mentioned guardrail monitoring means at least arranges more than 3; The dispersion of guardrail monitoring means is fixedly installed on the column of the isolation guardrail in the middle of road, and is positioned at the middle and upper part of fence upright; Shooting transmission unit at least arranges more than 1;
Guardrail monitoring means comprises testing circuit, signal amplification circuit filter, signal processing control circuit, position/clock circuit, signal amplification emissioning circuit and power module;
Testing circuit is provided with shifted signal output terminal and power end; Signal amplification circuit filter is provided with signal input part, signal output part and power end; Signal processing control circuit is provided with shifted signal input end, position/calendar clock signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit is provided with signal output part; Signal amplification emissioning circuit is provided with the first signal input part, secondary signal input end and wireless signal transmission end; Power module is provided with the first power output end and second source output terminal; Above-mentioned power end and power output end all have positive pole and negative pole;
The signal input part of signal amplification circuit filter is electrically connected with the shifted signal output terminal of testing circuit; The shifted signal input end of signal processing control circuit is electrically connected with the signal output part of signal amplification circuit filter; Position/calendar clock the signal input part of signal processing control circuit is electrically connected with the signal output part of position/clock circuit; First signal input part of signal amplification emissioning circuit is electrically connected with the first signal output part of signal processing control circuit; The secondary signal input end of signal amplification emissioning circuit is electrically connected with the secondary signal output terminal of signal processing control circuit; The power end of testing circuit is electrically connected with the first power output end of power module; The power end of the power end of signal amplification circuit filter, the power end of signal processing control circuit and signal amplification emissioning circuit is all electrically connected with the second source output terminal of power module;
Shooting transmission unit comprises signal receiving module, shooting trigger control module, camera head, signal transacting control module, position/clock circuit module, signal emission module and power module;
Signal receiving module is provided with reception of wireless signals end, the first signal output part, secondary signal output terminal and power end; Shooting trigger control module is provided with shifted signal input end, control signal output terminal and power end; Camera head is provided with control signal input end, image signal output end and power end; Signal transacting control module is provided with the first signal input part, secondary signal input end, the 3rd signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit module is provided with signal output part; Signal emission module is provided with the first signal input part, secondary signal input end, wireless signal transmission end and power end; Power module is provided with power output end;
The reception of wireless signals end of signal receiving module is electrically connected with the wireless signal transmission end radio communication of the signal amplification emissioning circuit of guardrail monitoring means; The shooting shifted signal input end of trigger control module is electrically connected with the first signal output part of signal receiving module; The control signal input end of camera head is electrically connected with the control signal output terminal of shooting trigger control module; First signal input part of signal transacting control module is electrically connected with the image signal output end of camera head; The secondary signal input end of signal transacting control module is electrically connected with the secondary signal output terminal of signal receiving module; 3rd signal input part of signal transacting control module is electrically connected with the signal output part of position/clock circuit module; First signal input part of signal emission module is electrically connected with the first signal output part of signal transacting control module; The secondary signal input end of signal emission module is electrically connected with the secondary signal output terminal of signal transacting control module; The power end of each module is all electrically connected with the power output end of power module.
Further scheme is: the testing circuit of above-mentioned guardrail monitoring means comprises 3-axis acceleration sensor IC1, electric capacity C16, electric capacity C17; 3-axis acceleration sensor IC1 is ADXL345 type integrated chip; 3-axis acceleration sensor IC1 has 1 to No. 16 totally 16 wiring pin, and No. 14 wiring pins of 3-axis acceleration sensor IC1 and No. 15 wiring pins form the power end positive pole of testing circuit jointly; No. 3 wiring pins of 3-axis acceleration sensor IC1, No. 5 wiring pins, No. 6 wiring pins, No. 7 wiring pins, one end of electric capacity C16 and one end of electric capacity C17 form the power end negative pole of testing circuit jointly; No. 8 wiring pins of the other end of electric capacity C16, the other end of electric capacity C17 and 3-axis acceleration sensor IC1 are a common junction because of conllinear, and this common junction is the shifted signal output terminal of testing circuit 11.
Further scheme is: the signal amplification circuit filter of above-mentioned guardrail monitoring means comprises fortune operational amplifier T1, resistance R1, resistance R2, resistance R5, resistance R6, electric capacity C1 and electric capacity C2; Operational amplifier T1 is the technical grade double operational of model LM258, and operational amplifier T1 has No. 1 to No. 8 totally 8 wiring pins;
No. 3 wiring pins of operational amplifier T1 are the signal input part of signal amplification circuit filter; No. 2 wiring pins of operational amplifier T1, one end of resistance R2 and one end conllinear of resistance R1; The other end of resistance R1, No. 1 wiring pin of operational amplifier T1, one end of electric capacity C1 and one end conllinear of resistance R5; No. 2 wiring pins of the other end of electric capacity C1, the other end of resistance R2, operational amplifier T1, No. 6 wiring pins of operational amplifier T1, No. 7 wiring pins of operational amplifier T1 and one end conllinear of resistance R6; The other end of resistance R6 is the signal output part of signal amplification circuit filter; No. 5 wiring pin conllinear of the other end of resistance R5, one end of electric capacity C2 and operational amplifier T1; The power supply of No. 8 wiring pins formation signal amplification circuit filters of operational amplifier T1 rectifies level; No. 4 wiring pins of operational amplifier T1 and the other end of electric capacity C2 form the power end negative pole of signal amplification circuit filter jointly.
Further scheme is: the signal processing control circuit of above-mentioned guardrail monitoring means comprises single-chip microcomputer IC2, crystal oscillator Y1, triode Q1, relay K 1, resistance R7, resistance R8, resistance R9, electric capacity C3, electric capacity C4, electric capacity C5 and electric capacity C6; Above-mentioned single-chip microcomputer IC2 is the single-chip microcomputer of AT89C51 model;
The P1.0 end of single-chip microcomputer IC2 is the shifted signal input end of signal processing control circuit.The RST end of single-chip microcomputer IC2, one end of electric capacity C3 and one end conllinear of resistance R7; The VCC end of the other end of resistance R7, one end of electric capacity C4 and single-chip microcomputer IC2 forms a common junction because of conllinear, and this common junction is the power end positive pole of signal processing control circuit; One end of the GND end of the other end of electric capacity C3, the other end of electric capacity C4, single-chip microcomputer IC2, the emitter-base bandgap grading of triode Q1, one end of electric capacity C5 and electric capacity C6 forms the power end negative pole of signal processing control circuit jointly; The base stage of triode Q1 is electrically connected with one end of resistance R8, and the other end of resistance R8 is held with the P1.7 of single-chip microcomputer IC2 and is electrically connected; The collector of triode Q1 is the first signal output part of signal processing control circuit; The P1.6 end of single-chip microcomputer IC2 is electrically connected with one end of resistance R9; The other end of resistance R9 is the secondary signal output terminal of signal processing control circuit 13; The P1.5 end of single-chip microcomputer IC2 and the common position/calendar clock signal input part forming signal processing control circuit 13 of P1.4 end; The XTAL1 of one end of crystal oscillator Y1, the other end of electric capacity C5 and single-chip microcomputer IC2 holds conllinear; The XTAL2 of the other end of crystal oscillator Y1, the other end of electric capacity C6 and single-chip microcomputer IC2 holds conllinear.
Further scheme is: the position/clock circuit of above-mentioned guardrail monitoring means comprises integrated chip IC3, integrated chip IC4, crystal oscillator Y2, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, resistance R10 and resistance R11; Above-mentioned integrated chip IC3 is the integrated chip of AT24C256 model; Integrated chip IC4 is the integrated chip of PCF8563 model;
One end conllinear of the VCC end of integrated chip IC3, one end of resistance R10, one end of resistance R11 and electric capacity C10; The SCL end of the other end of resistance R10, the SCL end of integrated chip IC3, integrated chip IC4 forms a common junction because of conllinear, the SDA end of the other end of resistance R11, the SDA end of integrated chip IC3, integrated chip IC4 forms a common junction because of conllinear, and these two common junction form the signal output part of position/clock circuit jointly; The OSC0 end of integrated chip IC4, one end of crystal oscillator Y2 and one end conllinear of electric capacity C7; The OSC1 end of integrated chip IC4, the other end of crystal oscillator Y2 and one end conllinear of electric capacity C8; The VCC end of integrated chip IC4 and one end conllinear of electric capacity C9; The VSS end of the other end of the other end of electric capacity C7, the other end of electric capacity C8, electric capacity C9, the other end of electric capacity C10, integrated chip IC4 and the power output end negative pole that the VSS of integrated chip IC3 holds, A0 end, A1 end, WP end connect power module jointly.
Further scheme is: the signal amplification emissioning circuit of above-mentioned guardrail monitoring means comprises relay K 1, triode Q2, transmitting coil L1, emitting antenna L2, resistance R12, resistance R13, resistance R14, resistance R15, variable capacitance C11, electric capacity C12, electric capacity C13, electric capacity C14 and electric capacity C15;
Relay K 1 is single-pole double-throw switch (SPDT) relay; Relay K 1 has 1 coil, 1 moving contact, 2 static contacts and 5 terminals, and 2 static contacts are divided into normally closed static contact and Chang Kai static contact.Terminals of the coil of relay K 1 are the first signal input part of signal amplification emissioning circuit; The moving contact of relay K 1 is the power end positive pole of signal amplification emissioning circuit; The normally closed static contact sky of relay K 1 connects; One end conllinear often opening static contact, one end of resistance R15, one end of transmitting coil L1 and variable capacitance C11 of relay K 1; One end of resistance R12 is the secondary signal input end of signal amplification emissioning circuit; One end conllinear of the other end of resistance R12, one end of resistance R13 and electric capacity C12; The other end of electric capacity C12, the other end of resistance R15, one end of electric capacity C13 and the base stage conllinear of triode Q2; The collector of triode Q2, the other end of transmitting coil L1, the other end of variable capacitance C11 and one end conllinear of electric capacity C15; The emitter-base bandgap grading of triode Q2, one end of resistance R14, the other end of electric capacity C15 and one end conllinear of resistance R14; The other end of another terminals of the coil of relay K 1, the other end of resistance R13, the other end of electric capacity C13, the other end of resistance R14 and electric capacity C14 forms the power end negative pole of signal amplification emissioning circuit jointly; One end of emitting antenna L2 is electrically connected with transmitting coil L1, and the other end of emitting antenna L2 is the wireless signal transmission end of signal amplification emissioning circuit.
Further scheme also has: the power module of above-mentioned guardrail monitoring means and the power module of shooting transmission unit include solar cell.
The present invention has positive effect: (1) road traffic guardrail intelligence management system of the present invention, and structure is simple, and easy for installation, cost is lower.(2) road traffic guardrail intelligence management system of the present invention, only have when road guard run-off the straight reaches presetting angle, the device that just trigger message transmission is relevant is started working, standby during non-run-off the straight, thus can power saving and effectively can extend serviceable life of system.(3) road traffic guardrail intelligence management system of the present invention, the guardrail monitoring means and the shooting transmission unit be arranged on light pole that are arranged on road centre all adopt solar cell self-powered, both electric energy can be saved, save again the frequent trouble changing dry cell, add the reliability of system works.(4) road traffic guardrail intelligence management system of the present invention, can find that road guard topples and relevant information is uploaded to traffic administration dispatching center in real time in real time, thus the instantaneity and validity disposed when traffic administration dispatching center occurs accident (fault) to road guard can be improved significantly, thus promote the integrity of road guard, reduce the generation of traffic hazard, promote city image.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, also show the traffic administration dispatching center of the reception being located at far-end wireless signal of the present invention in figure;
Fig. 2 is the theory diagram of the guardrail monitoring means in Fig. 1;
Fig. 3 is the electrical schematic diagram of Fig. 2;
Fig. 4 is the theory diagram of the shooting transmission unit in Fig. 1;
Fig. 5 is the schematic diagram of the set-up mode of the present invention on road equipment.
Reference numeral in above-mentioned accompanying drawing is as follows:
Guardrail monitoring means 1, testing circuit 11, signal amplification circuit filter 12, signal processing control circuit 13, position/clock circuit 14, signal amplification emissioning circuit 15, power module 16;
Shooting transmission unit 2, signal receiving module 21, shooting trigger control module 22, camera head 23, signal transacting control module 24, position/clock circuit module 25, signal emission module 26, power module 27.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 1 and Fig. 5, the road traffic guardrail intelligence management system of the present embodiment, form primarily of guardrail monitoring means 1 and shooting transmission unit 2.
Guardrail monitoring means 1 at least arranges more than 3, and guardrail monitoring means 1 dispersion is fixedly installed on the column of the isolation guardrail in the middle of road, and is positioned at the middle and upper part of fence upright.The quantity of guardrail monitoring means 1 can be arranged according to realizing needs.Multiple guardrail monitoring means 1 can evenly be arranged on the column of road guard, also anisotropically can arrange according to the actual conditions of road guard.The spacing of adjacent 2 guardrail monitoring means 1 is 5m to 15m, and in the present embodiment, the spacing of adjacent 2 guardrail monitoring means 1 is for preferably to adopt 9m.
Shooting transmission unit 2 at least arranges more than 1, and shooting transmission unit 2 is arranged on the light pole of road side, and is positioned at the upper end of light pole.The quantity of shooting transmission unit 2 can be determined according to the quantity of guardrail monitoring means 1 is corresponding, and the total quantity of shooting transmission unit 2 is about 1/10th of the total quantity of guardrail monitoring means 1.
See Fig. 2, guardrail monitoring means 1 is made up of testing circuit 11, signal amplification circuit filter 12, signal processing control circuit 13, position/clock circuit 14, signal amplification emissioning circuit 15 and power module 16.
Testing circuit 11 is provided with shifted signal output terminal and power end; Signal amplification circuit filter 12 is provided with signal input part, signal output part and power end; Signal processing control circuit 13 is provided with shifted signal input end, position/calendar clock signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit 14 is provided with signal output part; Signal amplification emissioning circuit 15 is provided with the first signal input part, secondary signal input end and wireless signal transmission end; Power module 16 is provided with the first power output end and second source output terminal; Aforesaid power end and power output end all have positive pole and negative pole.
The signal input part of signal amplification circuit filter 12 is electrically connected with the shifted signal output terminal of testing circuit 11; The shifted signal input end of signal processing control circuit 13 is electrically connected with the signal output part of signal amplification circuit filter 12; Position/calendar clock the signal input part of signal processing control circuit 13 is electrically connected with the signal output part of position/clock circuit 14; First signal input part of signal amplification emissioning circuit 15 is electrically connected with the first signal output part of signal processing control circuit 13; The secondary signal input end of signal amplification emissioning circuit 15 is electrically connected with the secondary signal output terminal of signal processing control circuit 13; The power end of testing circuit 11 is electrically connected with the first power output end of power module 16; The power end of the power end of signal amplification circuit filter 12, the power end of signal processing control circuit 13 and signal amplification emissioning circuit 15 is all electrically connected with the second source output terminal of power module 16.
See Fig. 3, the testing circuit 11 of guardrail monitoring means 1 is made up of 3-axis acceleration sensor IC1, electric capacity C16, electric capacity C17.In the present embodiment, 3-axis acceleration sensor IC1 preferably adopts ADXL345 type integrated chip.3-axis acceleration sensor IC1 has 1 to No. 16 totally 16 wiring pin, and No. 14 wiring pins of 3-axis acceleration sensor IC1 and No. 15 wiring pins form the power end positive pole of testing circuit 11 jointly; No. 3 wiring pins of 3-axis acceleration sensor IC1, No. 5 wiring pins, No. 6 wiring pins, No. 7 wiring pins, one end of electric capacity C16 and one end of electric capacity C17 form the power end negative pole of testing circuit 11 jointly; No. 8 wiring pins of the other end of electric capacity C16, the other end of electric capacity C17 and 3-axis acceleration sensor IC1 are a common junction because of conllinear, and this common junction is the shifted signal output terminal of testing circuit 11.
Signal amplification circuit filter 12 is made up of operational amplifier T1, resistance R1, resistance R2, resistance R5, resistance R6, electric capacity C1 and electric capacity C2.In the present embodiment, operational amplifier T1 preferably adopts model to be the technical grade double operational of LM258, and operational amplifier T1 has No. 1 to No. 8 totally 8 wiring pins.
No. 3 wiring pins (the first in-phase input end) of operational amplifier T1 are the signal input part of signal amplification circuit filter 12; No. 2 wiring pins (the first inverting input) of operational amplifier T1, one end of resistance R2 and one end conllinear of resistance R1; The other end of resistance R1, No. 1 wiring pin (the first output terminal) of operational amplifier T1, one end of electric capacity C1 and one end conllinear of resistance R5; No. 2 wiring pins (the first inverting input) of the other end of electric capacity C1, the other end of resistance R2, operational amplifier T1, No. 6 wiring pins (the second inverting input) of operational amplifier T1, No. 7 wiring pins (the second output terminal) of operational amplifier T1 and one end conllinear of resistance R6; The other end of resistance R6 is the signal output part of signal amplification circuit filter 12; No. 5 wiring pins (the second in-phase input end) conllinear of the other end of resistance R5, one end of electric capacity C2 and operational amplifier T1; The power supply of No. 8 wiring pins (VCC end) the formation signal amplification circuit filter 12 of operational amplifier T1 rectifies level; No. 4 wiring pins (GND end) of operational amplifier T1 and the other end of electric capacity C2 form the power end negative pole of signal amplification circuit filter 12 jointly.
Signal processing control circuit 13 is made up of single-chip microcomputer IC2, crystal oscillator Y1, triode Q1, relay K 1, resistance R7, resistance R8, resistance R9, electric capacity C3, electric capacity C4, electric capacity C5 and electric capacity C6.In the present embodiment, single-chip microcomputer IC2 preferably adopts model to be the single-chip microcomputer of AT89C51.
P1.0 end (No. 1 wiring pin) of single-chip microcomputer IC2 is the shifted signal input end of signal processing control circuit 13.The RST of single-chip microcomputer IC2 holds (No. 9 wiring pins), one end of electric capacity C3 and one end conllinear of resistance R7; VCC end (No. 40 wiring pins) of the other end of resistance R7, one end of electric capacity C4 and single-chip microcomputer IC2 forms a common junction because of conllinear, and this common junction is the power end positive pole of signal processing control circuit 13; The power end negative pole that the GND of the other end of electric capacity C3, the other end of electric capacity C4, single-chip microcomputer IC2 holds (No. 20 wiring pins), the emitter-base bandgap grading of triode Q1, one end of one end of electric capacity C5 and electric capacity C6 forms signal processing control circuit 13 jointly; The base stage of triode Q1 is electrically connected with one end of resistance R8, and the other end of resistance R8 holds (No. 8 wiring pins) to be electrically connected with the P1.7 of single-chip microcomputer IC2; The collector of triode Q1 is the first signal output part of signal processing control circuit 13; P1.6 end (No. 7 wiring pins) of single-chip microcomputer IC2 is electrically connected with one end of resistance R9; The other end of resistance R9 is the secondary signal output terminal of signal processing control circuit 13; P1.5 end (No. 6 wiring pins) of single-chip microcomputer IC2 and P1.4 end (No. 5 wiring pins) forms the position/calendar clock signal input part of signal processing control circuit 13 jointly; The XTAL1 of one end of crystal oscillator Y1, the other end of electric capacity C5 and single-chip microcomputer IC2 holds (No. 19 wiring pins) conllinear; The XTAL2 of the other end of crystal oscillator Y1, the other end of electric capacity C6 and single-chip microcomputer IC2 holds (No. 18 wiring pins) conllinear.
Position/clock circuit 14 is made up of integrated chip IC3, integrated chip IC4, crystal oscillator Y2, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, resistance R10 and resistance R11.
In the present embodiment; integrated chip IC3 preferably adopts AT24C256 chip; this integrated chip is a low-voltage, serial line interface, capacity are 256K can the storer of power down protection; for reading and writing and store the block information of fence upright (such as: xx district; xx road; xx section, ± xxM), it has 8 wiring pins.Integrated chip IC4 preferably adopts PCF8563 chip, and this integrated chip is that a technical grade that PHILIPS company releases includes the multifunction timepiece/calendar chip with extremely low power dissipation of I2C bus, and for generation of date, time signal, it has 8 wiring pins.
One end conllinear of the VCC end of integrated chip IC3, one end of resistance R10, one end of resistance R11 and electric capacity C10; The other end of resistance R10, the SCL(serial clock of integrated chip IC3) end, integrated chip IC4 SCL end form a common junction because of conllinear, the other end of resistance R11, the SDA(serial data of integrated chip IC3) end, integrated chip IC4 SDA end form a common junction because of conllinear, these two common junction form the signal output part of position/clock circuit 14 jointly, and this output terminal exports block information and the calendar clock information of fence upright to single-chip microcomputer IC2.The OSC0 end of integrated chip IC4, one end of crystal oscillator Y2 and one end conllinear of electric capacity C7; The OSC1 end of integrated chip IC4, the other end of crystal oscillator Y2 and one end conllinear of electric capacity C8; The VCC end of integrated chip IC4 and one end conllinear of electric capacity C9; The VSS end of the other end of the other end of electric capacity C7, the other end of electric capacity C8, electric capacity C9, the other end of electric capacity C10, integrated chip IC4 and the power output end negative pole that the VSS of integrated chip IC3 holds, A0 end, A1 end, WP end connect power module 16 jointly.
Signal amplification emissioning circuit 15 is made up of relay K 1, triode Q2, transmitting coil L1, emitting antenna L2, resistance R12, resistance R13, resistance R14, resistance R15, variable capacitance C11, electric capacity C12, electric capacity C13, electric capacity C14 and electric capacity C15.
Relay K 1 is single-pole double-throw switch (SPDT) relay; Relay K 1 has 1 coil, 1 moving contact, 2 static contacts and 5 terminals, and 2 static contacts are divided into normally closed static contact and Chang Kai static contact.Terminals of the coil of relay K 1 are the first signal input part of signal amplification emissioning circuit 15; The moving contact of relay K 1 is the power end positive pole of signal amplification emissioning circuit 15; The normally closed static contact sky of relay K 1 connects; One end conllinear often opening static contact, one end of resistance R15, one end of transmitting coil L1 and variable capacitance C11 of relay K 1; One end of resistance R12 is the secondary signal input end of signal amplification emissioning circuit 15; One end conllinear of the other end of resistance R12, one end of resistance R13 and electric capacity C12; The other end of electric capacity C12, the other end of resistance R15, one end of electric capacity C13 and the base stage conllinear of triode Q2; The collector of triode Q2, the other end of transmitting coil L1, the other end of variable capacitance C11 and one end conllinear of electric capacity C15; The emitter-base bandgap grading of triode Q2, one end of resistance R14, the other end of electric capacity C15 and one end conllinear of resistance R14; The other end of another terminals of the coil of relay K 1, the other end of resistance R13, the other end of electric capacity C13, the other end of resistance R14 and electric capacity C14 forms the power end negative pole of signal amplification emissioning circuit 15 jointly; One end of emitting antenna L2 is electrically connected with transmitting coil L1, and the other end of emitting antenna L2 is the wireless signal transmission end of signal amplification emissioning circuit 15.
Power module 16 can adopt dry cell.In the present embodiment, power module 16 preferably adopts solar cell to provide power supply, and the first power output end of power module 16 exports the direct supply of+3.3V, for the 3-axis acceleration sensor IC1 of testing circuit 11 provides working power; The second source output terminal of power module 16 exports the direct supply of+5V, for other circuit of guardrail monitoring means 1 provide working power.
See Fig. 4, shooting transmission unit 2 is made up of signal receiving module 21, shooting trigger control module 22, camera head 23, signal transacting control module 24, position/clock circuit module 25, signal emission module 26 and power module 27.
Signal receiving module 21 is provided with reception of wireless signals end, the first signal output part, secondary signal output terminal and power end; Shooting trigger control module 22 is provided with shifted signal input end, control signal output terminal and power end; Camera head 23 is provided with control signal input end, image signal output end and power end; Signal transacting control module 24 is provided with the first signal input part, secondary signal input end, the 3rd signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit module 25 is provided with signal output part; Signal emission module 26 is provided with the first signal input part, secondary signal input end, wireless signal transmission end and power end; Power module 27 is provided with power output end.
The reception of wireless signals end of signal receiving module 21 is electrically connected with the wireless signal transmission end radio communication of the signal amplification emissioning circuit 15 of guardrail monitoring means 1; The shooting shifted signal input end of trigger control module 22 is electrically connected with the first signal output part of signal receiving module 21; The control signal input end of camera head 23 is electrically connected with the control signal output terminal of shooting trigger control module 22; First signal input part of signal transacting control module 24 is electrically connected with the image signal output end of camera head 23; The secondary signal input end of signal transacting control module 24 is electrically connected with the secondary signal output terminal of signal receiving module 21; 3rd signal input part of signal transacting control module 24 is electrically connected with the signal output part of position/clock circuit module 25; First signal input part of signal emission module 26 is electrically connected with the first signal output part of signal transacting control module 24; The secondary signal input end of signal emission module 26 is electrically connected with the secondary signal output terminal of signal transacting control module 24; The wireless signal transmission end of signal emission module 26 is electrically connected with traffic administration dispatching center radio communication; The power end of each module is all electrically connected with the power output end of power module 27.
The camera head 23 of shooting transmission unit 2 can adopt monitoring camera-shooting to pop one's head in or video camera (video camera); Power module 27 preferably adopts solar cell for supplying power.
Principle of work and the course of work of the road traffic guardrail intelligence management system of the present embodiment are summarized as follows:
The core devices of the testing circuit 11 of guardrail monitoring means 1 is 3-axis acceleration sensor, i.e. IC1ADXL345 type integrated chip, ADXL335 three axis accelerometer is a small size, slim, low-power consumption, complete three axis accelerometer, provides the voltage through signal condition to export.It can measure the static weight acceleration in tilt detection application, and the dynamic acceleration that motion, impact or vibration cause, and also has the static angular measurement function at Z axis.Z channel output end 8 pin of ADXL335 three axis accelerometer exports the voltage signal corresponding with angle of inclination.Be horizontally disposed with under state, the Z channel output end no-voltage signal of ADXL335 three axis accelerometer exports (also namely magnitude of voltage is 0V), when the run-off the straight of ADXL335 three axis accelerometer, then the magnitude of voltage of exported voltage signal reduces along with the increase at angle of inclination; When ADXL335 three axis accelerometer Z-direction (vertical to) run-off the straight 15 degree of angles, its voltage signal exported is about 1.93V.The signal that ADXL335 three axis accelerometer produces carries out 2 grades through signal amplification circuit filter 12 and amplifies and after filtering, flow to signal processing control circuit 13, the single-chip microcomputer IC2 of signal processing control circuit 13 to this signal after A/D conversion, compare with stored database information and analyze and judge, when judgement reaches warning trigger gate (the corresponding guardrail inclination of warning trigger thresholds 15 degree of settings) in limited time, the high level of about one minute is exported to drive triode Q1 conducting by the first signal output part of signal processing control circuit 13, thus make the conducting of the relay K 1 of signal amplification emissioning circuit 15, signal amplification emissioning circuit 15 is worked, simultaneously, the information that road guard topples by signal processing control circuit 13 is together with the location information of guardrail, clock information is together transferred to signal amplification emissioning circuit 15 through its secondary signal output terminal, and wireless transmit is carried out after signal amplifies by signal amplification emissioning circuit 15.
The signal that signal receiving module 21 wireless receiving of shooting transmission unit 2 sends to the signal amplification emissioning circuit 15 of guardrail monitoring means 1, shooting trigger control module 22 starts the guardrail that camera head 23 topples and carries out making a video recording and picture signal is transferred to signal transacting control module 24, and signal processing module 24 is to the traffic administration dispatching center being wirelessly sent to far-end after the position/calendar clock signal of the picture signal received, fence upright and the position of self/clock signal process in the lump through signal emission module 26.Traffic administration dispatching center can receive the information of toppling of road traffic guardrail in real time, thus police service immediately, in arranged rational and scheduling emergency area or assistant policeman can turn out for work in time, processes the guardrail toppled.
Camera head 23 and the signal emission module 26 of shooting transmission unit 2 are all in off position under normal circumstances, signal receiving module 21 is in holding state, once signal receiving module 21 receives the signal that in this interval, guardrail monitoring means 1 sends, the camera head 23 and the signal emission module 26 that then trigger shooting transmission unit 2 work, by on-the-spot relevant information Wireless transceiver to traffic administration dispatching center.
The emissive power of the signal amplification emissioning circuit 15 of guardrail monitoring means 1 adopts middle low power to transmit, transmission range is about about 1000M, such signal amplitude neither affects and disturbs normal communication system, again can be reliable and stable by information transmission give shooting transmission unit 2.Wireless launcher in signal emission module 26 employing of shooting transmission unit 2 more than power, to ensure the wireless communication connection with traffic control center.
To sum up, the road traffic guardrail intelligence management system of the present embodiment, structure is simple, and easy for installation, cost is lower; Only have when road guard run-off the straight reaches presetting angle, the device that just trigger message transmission is relevant is started working, standby during non-run-off the straight, thus can power saving and effectively can extend serviceable life of system; The guardrail monitoring means and the shooting transmission unit be arranged on light pole that are arranged on road centre all adopt solar cell self-powered, both can save electric energy, save again the frequent trouble changing dry cell, add the reliability of system works; System can find that road guard topples and relevant information is uploaded to traffic administration dispatching center in real time in real time, thus the instantaneity and validity disposed when traffic administration dispatching center occurs accident (fault) to road guard can be improved significantly, thus promote the integrity of road guard, reduce the generation of traffic hazard, promote city image.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.
Claims (7)
1. a road traffic guardrail intelligence management system, is characterized in that: comprise guardrail monitoring means (1) and shooting transmission unit (2); Described guardrail monitoring means (1) arranges more than 3; Guardrail monitoring means (1) dispersion is fixedly installed on the column of the isolation guardrail in the middle of road, and is positioned at the middle and upper part of fence upright; Shooting transmission unit (2) arranges more than 1;
Guardrail monitoring means (1) comprises testing circuit (11), signal amplification circuit filter (12), signal processing control circuit (13), position/clock circuit (14), signal amplification emissioning circuit (15) and power module (16);
Testing circuit (11) is provided with shifted signal output terminal and power end; Signal amplification circuit filter (12) is provided with signal input part, signal output part and power end; Signal processing control circuit (13) is provided with shifted signal input end, position/calendar clock signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit (14) is provided with signal output part; Signal amplification emissioning circuit (15) is provided with the first signal input part, secondary signal input end and wireless signal transmission end; Power module (16) is provided with the first power output end and second source output terminal; Described power end and power output end all have positive pole and negative pole;
The signal input part of signal amplification circuit filter (12) is electrically connected with the shifted signal output terminal of testing circuit (11); The shifted signal input end of signal processing control circuit (13) is electrically connected with the signal output part of signal amplification circuit filter (12); Position/calendar clock the signal input part of signal processing control circuit (13) is electrically connected with the signal output part of position/clock circuit (14); First signal input part of signal amplification emissioning circuit (15) is electrically connected with the first signal output part of signal processing control circuit (13); The secondary signal input end of signal amplification emissioning circuit (15) is electrically connected with the secondary signal output terminal of signal processing control circuit (13); The power end of testing circuit (11) is electrically connected with the first power output end of power module (16); The power end of the power end of signal amplification circuit filter (12), the power end of signal processing control circuit (13) and signal amplification emissioning circuit (15) is all electrically connected with the second source output terminal of power module (16);
Shooting transmission unit (2) comprises signal receiving module (21), shooting trigger control module (22), camera head (23), signal transacting control module (24), position/clock circuit module (25), signal emission module (26) and power module (27);
Signal receiving module (21) is provided with reception of wireless signals end, the first signal output part, secondary signal output terminal and power end; Shooting trigger control module (22) is provided with shifted signal input end, control signal output terminal and power end; Camera head (23) is provided with control signal input end, image signal output end and power end; Signal transacting control module (24) is provided with the first signal input part, secondary signal input end, the 3rd signal input part, the first signal output part, secondary signal output terminal and power end; Position/clock circuit module (25) is provided with signal output part; Signal emission module (26) is provided with the first signal input part, secondary signal input end, wireless signal transmission end and power end; Power module (27) is provided with power output end;
The reception of wireless signals end of signal receiving module (21) is electrically connected with the wireless signal transmission end radio communication of the signal amplification emissioning circuit (15) of guardrail monitoring means (1); The shifted signal input end of shooting trigger control module (22) is electrically connected with the first signal output part of signal receiving module (21); The control signal input end of camera head (23) is electrically connected with the control signal output terminal of shooting trigger control module (22); First signal input part of signal transacting control module (24) is electrically connected with the image signal output end of camera head (23); The secondary signal input end of signal transacting control module (24) is electrically connected with the secondary signal output terminal of signal receiving module (21); 3rd signal input part of signal transacting control module (24) is electrically connected with the signal output part of position/clock circuit module (25); First signal input part of signal emission module (26) is electrically connected with the first signal output part of signal transacting control module (24); The secondary signal input end of signal emission module (26) is electrically connected with the secondary signal output terminal of signal transacting control module (24); The power end of each module is all electrically connected with the power output end of power module (27).
2. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the testing circuit (11) of described guardrail monitoring means (1) comprises 3-axis acceleration sensor IC1, electric capacity C16, electric capacity C17; 3-axis acceleration sensor IC1 is ADXL345 type integrated chip; 3-axis acceleration sensor IC1 has 1 to No. 16 totally 16 wiring pin, and No. 14 wiring pins of 3-axis acceleration sensor IC1 and No. 15 wiring pins form the power end positive pole of testing circuit (11) jointly; No. 3 wiring pins of 3-axis acceleration sensor IC1, No. 5 wiring pins, No. 6 wiring pins, No. 7 wiring pins, one end of electric capacity C16 and one end of electric capacity C17 form the power end negative pole of testing circuit (11) jointly; No. 8 wiring pins of the other end of electric capacity C16, the other end of electric capacity C17 and 3-axis acceleration sensor IC1 are a common junction because of conllinear, and this common junction is the shifted signal output terminal of testing circuit 11.
3. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the signal amplification circuit filter (12) of described guardrail monitoring means (1) comprises fortune operational amplifier T1, resistance R1, resistance R2, resistance R5, resistance R6, electric capacity C1 and electric capacity C2; Operational amplifier T1 is the technical grade double operational of model LM258, and operational amplifier T1 has No. 1 to No. 8 totally 8 wiring pins;
No. 3 wiring pins of operational amplifier T1 are the signal input part of signal amplification circuit filter (12); No. 2 wiring pins of operational amplifier T1, one end of resistance R2 and one end conllinear of resistance R1; The other end of resistance R1, No. 1 wiring pin of operational amplifier T1, one end of electric capacity C1 and one end conllinear of resistance R5; No. 2 wiring pins of the other end of electric capacity C1, the other end of resistance R2, operational amplifier T1, No. 6 wiring pins of operational amplifier T1, No. 7 wiring pins of operational amplifier T1 and one end conllinear of resistance R6; The other end of resistance R6 is the signal output part of signal amplification circuit filter (12); No. 5 wiring pin conllinear of the other end of resistance R5, one end of electric capacity C2 and operational amplifier T1; The power supply of No. 8 wiring pins formation signal amplification circuit filter (12) of operational amplifier T1 rectifies level; No. 4 wiring pins of operational amplifier T1 and the other end of electric capacity C2 form the power end negative pole of signal amplification circuit filter (12) jointly.
4. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the signal processing control circuit (13) of described guardrail monitoring means (1) comprises single-chip microcomputer IC2, crystal oscillator Y1, triode Q1, relay K 1, resistance R7, resistance R8, resistance R9, electric capacity C3, electric capacity C4, electric capacity C5 and electric capacity C6; Described single-chip microcomputer IC2 is the single-chip microcomputer of AT89C51 model;
The P1.0 end of single-chip microcomputer IC2 is the shifted signal input end of signal processing control circuit (13); The RST end of single-chip microcomputer IC2, one end of electric capacity C3 and one end conllinear of resistance R7; The VCC end of the other end of resistance R7, one end of electric capacity C4 and single-chip microcomputer IC2 forms a common junction because of conllinear, and this common junction is the power end positive pole of signal processing control circuit (13); One end of the GND end of the other end of electric capacity C3, the other end of electric capacity C4, single-chip microcomputer IC2, the emitter-base bandgap grading of triode Q1, one end of electric capacity C5 and electric capacity C6 forms the power end negative pole of signal processing control circuit (13) jointly; The base stage of triode Q1 is electrically connected with one end of resistance R8, and the other end of resistance R8 is held with the P1.7 of single-chip microcomputer IC2 and is electrically connected; The collector of triode Q1 is the first signal output part of signal processing control circuit (13); The P1.6 end of single-chip microcomputer IC2 is electrically connected with one end of resistance R9; The other end of resistance R9 is the secondary signal output terminal of signal processing control circuit 13; The P1.5 end of single-chip microcomputer IC2 and the common position/calendar clock signal input part forming signal processing control circuit 13 of P1.4 end; The XTAL1 of one end of crystal oscillator Y1, the other end of electric capacity C5 and single-chip microcomputer IC2 holds conllinear; The XTAL2 of the other end of crystal oscillator Y1, the other end of electric capacity C6 and single-chip microcomputer IC2 holds conllinear.
5. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the position/clock circuit (14) of described guardrail monitoring means (1) comprises integrated chip IC3, integrated chip IC4, crystal oscillator Y2, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, resistance R10 and resistance R11; Described integrated chip IC3 is the integrated chip of AT24C256 model; Integrated chip IC4 is the integrated chip of PCF8563 model;
One end conllinear of the VCC end of integrated chip IC3, one end of resistance R10, one end of resistance R11 and electric capacity C10; The SCL end of the other end of resistance R10, the SCL end of integrated chip IC3, integrated chip IC4 forms a common junction because of conllinear, the SDA end of the other end of resistance R11, the SDA end of integrated chip IC3, integrated chip IC4 forms a common junction because of conllinear, and these two common junction form the signal output part of position/clock circuit (14) jointly; The OSC0 end of integrated chip IC4, one end of crystal oscillator Y2 and one end conllinear of electric capacity C7; The OSC1 end of integrated chip IC4, the other end of crystal oscillator Y2 and one end conllinear of electric capacity C8; The VCC end of integrated chip IC4 and one end conllinear of electric capacity C9; The VSS end of the other end of the other end of electric capacity C7, the other end of electric capacity C8, electric capacity C9, the other end of electric capacity C10, integrated chip IC4 and the power output end negative pole that the VSS of integrated chip IC3 holds, A0 end, A1 end, WP end connect power module (16) jointly.
6. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the signal amplification emissioning circuit (15) of described guardrail monitoring means (1) comprises relay K 1, triode Q2, transmitting coil L1, emitting antenna L2, resistance R12, resistance R13, resistance R14, resistance R15, variable capacitance C11, electric capacity C12, electric capacity C13, electric capacity C14 and electric capacity C15;
Relay K 1 is single-pole double-throw switch (SPDT) relay; Relay K 1 has 1 coil, 1 moving contact, 2 static contacts and 5 terminals, and 2 static contacts are divided into normally closed static contact and Chang Kai static contact; Terminals of the coil of relay K 1 are the first signal input part of signal amplification emissioning circuit (15); The moving contact of relay K 1 is the power end positive pole of signal amplification emissioning circuit (15); The normally closed static contact sky of relay K 1 connects; One end conllinear often opening static contact, one end of resistance R15, one end of transmitting coil L1 and variable capacitance C11 of relay K 1; One end of resistance R12 is the secondary signal input end of signal amplification emissioning circuit (15); One end conllinear of the other end of resistance R12, one end of resistance R13 and electric capacity C12; The other end of electric capacity C12, the other end of resistance R15, one end of electric capacity C13 and the base stage conllinear of triode Q2; The collector of triode Q2, the other end of transmitting coil L1, the other end of variable capacitance C11 and one end conllinear of electric capacity C15; The emitter-base bandgap grading of triode Q2, one end of resistance R14, the other end of electric capacity C15 and one end conllinear of resistance R14; The other end of another terminals of the coil of relay K 1, the other end of resistance R13, the other end of electric capacity C13, the other end of resistance R14 and electric capacity C14 forms the power end negative pole of signal amplification emissioning circuit (15) jointly; One end of emitting antenna L2 is electrically connected with transmitting coil L1, and the other end of emitting antenna L2 is the wireless signal transmission end of signal amplification emissioning circuit (15).
7. road traffic guardrail intelligence management system according to claim 1, is characterized in that: the power module (16) of described guardrail monitoring means (1) and the power module (27) of shooting transmission unit (2) include solar cell.
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| CN104134311B (en) * | 2014-07-30 | 2017-04-12 | 中国四联仪器仪表集团有限公司 | Traffic accident monitoring alarm device and method |
| CN104631304B (en) * | 2015-02-06 | 2016-07-06 | 江苏理工学院 | Separation type cascade guardrail falling induction device |
| CN106681225B (en) * | 2017-02-06 | 2023-07-04 | 江苏顺达交通设施有限公司 | Urban road guardrail state monitoring device and monitoring method thereof |
| CN106894365B (en) * | 2017-02-06 | 2022-07-29 | 江苏顺达交通设施有限公司 | Urban road guardrail system and working method thereof |
| CN207319419U (en) * | 2017-10-16 | 2018-05-04 | 深圳佳比泰智能照明股份有限公司 | A kind of highway guardrail intelligent early-warning lamp |
| CN107911479A (en) * | 2017-12-07 | 2018-04-13 | 江西省交通运输科学研究院有限公司 | A kind of traffic safety facilities condition checkout gear and its detection method |
| CN109581949A (en) * | 2018-11-26 | 2019-04-05 | 四川龙鸟智能交通科技有限公司 | Road guard monitoring system |
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