CN108305467A - A kind of bicycle road entrance vehicle flow detection system based on self-identifying - Google Patents
A kind of bicycle road entrance vehicle flow detection system based on self-identifying Download PDFInfo
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- CN108305467A CN108305467A CN201810204379.6A CN201810204379A CN108305467A CN 108305467 A CN108305467 A CN 108305467A CN 201810204379 A CN201810204379 A CN 201810204379A CN 108305467 A CN108305467 A CN 108305467A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
Abstract
The present invention provides a kind of bicycle road entrance vehicle flow detection system based on self-identifying, including host computer, gateway operating circuit, flow sensor operating circuit, RS485 telecommunication circuits, 433M modules, GPRS module, host computer is connected to gateway operating circuit by GPRS module and RS485 telecommunication circuits, gateway operating circuit is connected to flow sensor operating circuit by 433M modules, gateway operating circuit respectively with RS485 telecommunication circuits, GPRS module, 433M modules are connected, flow sensor operating circuit respectively with 433M modules, three axis geomagnetic sensors are connected.The advantage of the invention is that：1, it is deployed in the parking lot of bicycle road disengaging, it is low in energy consumption, it is easy for construction, adaptive temperature range is wide etc..2, real-time perception vehicle enters or is driven out to.3, it is convenient for integrating, has the parking lot induction parking function of City-level.4, have GPRS remote monitoring systems.5, there is RS485 communication interfaces.
Description
Technical field
The present invention relates to detecting system more particularly to a kind of bicycle road entrance vehicle Flow Detection systems based on self-identifying
System.
Background technology
With the sustainable growth of car ownership, the problems such as parking stall is nervous and parking difficulty, gradually highlights.It improves existing
The utilization rate of parking position is to alleviate an important channel of current parking difficulty problem.And current parking lot management mould
Formula is single, does things in his own way, and the average service efficiency of day part is low.This patent is absorbed in one parking lot entrance intelligence of exploitation
Management system, the discrepancy information in the existing parking lot of real-time perception, the parking lot with intelligentized means by distribution at various locations
It integrates, is vitalized using information-based means, guiding driver is accurately and fast stopped nearby, to a certain degree
The problem of upper alleviation vehicle congestion and parking difficulty.
Bicycle road entrance with into go out vehicle flow detection system, by be deployed under the road sluice gate of vehicles while passing two
A ground magnetic detector, intelligent measurement and identification vehicle leave or enter parking lot, are suitable for the parking lot of bicycle road disengaging,
Remaining parking stall in analysis parking lot in real time, and it is aggregated into background server, project plan and operation are convenient and efficient.
Invention content
The present invention technical problem to be solved be it is a kind of can accurately and in real time perceive bicycle road discrepancy
Parking lot vehicles while passing information, the parking information for integrating City-level is shared, improves the entrance vehicle of parking efficiency and parking experience
Flow quantity detecting system.
The present invention solves above-mentioned technical problem using following technical scheme：A kind of bicycle road discrepancy based on self-identifying
Mouthful vehicle flow detection system, including host computer, gateway operating circuit, flow sensor operating circuit, RS485 telecommunication circuits,
433M modules, GPRS module, host computer are connected to gateway operating circuit, gateway work by GPRS module and RS485 telecommunication circuits
Make circuit and flow sensor operating circuit be connected to by 433M modules, gateway operating circuit respectively with RS485 telecommunication circuits,
GPRS module, 433M radio communication circuits are connected, and flow sensor operating circuit is passed with 433M modules, three axis earth magnetism respectively
Sensor is connected.
Specifically, the gateway operating circuit includes microcontroller, wrist-watch crystal oscillator, 12M crystal oscillators, capacitance C8, C9, microcontroller
For MSP430F5325 microcontrollers, external crystal oscillator between the pin 69,70 of microcontroller, the both ends of crystal oscillator respectively with capacitance C8 one
End is connected with one end of C9, and the other end of C8 is connected and is grounded with the other end of C9, and the pin 40,41 of microcontroller connects RS485
Telecommunication circuit connects host computer in real time by GPRS module, and the pin 31,32,33,34,35,36 of microcontroller connects 433M moulds
Block realizes the information exchange of gateway and flow sensor.
Specifically, the electric power management circuit includes the first, second power conversion chip, the first power conversion chip is
2 feet of LM2676-5, the first power conversion chip connect the anode of DC power supply 24V inputs, and connect filter capacitor C2 just
Pole, 4,8 pins connect the ground terminal of 24V power supplys with the cathode of filter capacitor C2, and 3 feet export 5V voltages after connecting an inductance L2,
Cathode of 1 foot as the output diode D1 of chip power, the plus earth of diode D1, another point and ground of L2 are indirectly
Enter filter capacitor C3 and constitutes electric power loop；Second source conversion chip is ASM1117-XX, constitutes 3.3V direct voltage outputs,
3 feet of second source conversion chip connect the anode of DC power supply 5V input, and connect the anode of filter capacitor C6,1 pin and
The ground terminal of the cathode connection 5V power supplys of filter capacitor C6,2 feet export 3.3V voltages as return terminal, and 2 feet are as chip power
Export the anode of external filter capacitor C7, the cathode ground connection of C7, the output end of DC voltage 3.3V and the indirect concatenated electricity on ground
Hinder the instruction of R2 and Light-emitting diode LED 3 as power supply.
Specifically, the RS485 telecommunication circuits include RS485 chips, optocoupler OC1, optocoupler OC2, optocoupler OC3, output connect
Mouth J3；
The RS485 telecommunication circuits include RS485 chips, Schottky diode D1, D2, D3, self-healing fuse F1, F2,
Discharge tube G1, resistance R11, output interface J3.RS485 chips are MAX485, and 1,4 feet are connect with output interface J3,2,3 feet
Connect with 36 feet of MSP430F5325 microcontrollers, 8 feet connect power management module output 5V voltages, 7 feet connect one end of R11 with
And 1 pin of D1, D3, F1,6 feet ground connection, the other end of R11,2 feet of D1,1 and 2 feet of D2,2 feet of D3,1 foot of F2 are equal
Ground connection, 1 pin of discharge tube G1 connect 2 pins of F1, and 2 pins of discharge tube connect 2 pins of F2, and 3 pins of discharge tube G1 connect
Ground.
Specifically, the flow sensor operating circuit includes microcontroller, three-axis sensor HMC5983, resistance R5, R6,
Schottky diode V5, V6,433 modules, microcontroller MSP430F2553, the external wrist-watch crystal oscillator of 26,27 pins of microcontroller
Y1, external 433 module of 12,16,17,18,22,23 pins of microcontroller realize the information sharing with gateway, microcontroller 5,
10,11 pins distinguish 15,16,1 pin of external HMC5983, the GEOMAGNETIC CHANGE information that receiving sensor detects, HMC5983
16 pins external R5, V5 cathode, the cathode of 1 pin external R6, V6, R5 and R6 forming circuits, the anode point of V5 and V6
It is not grounded.
Specifically, the GPRS module includes SZ11-GPRS chips, resistance R1J1, R1J2, R1J3, R1J4, R1J5,
R1J6, capacitance C1J1, C1J2, LED light RUN-G, NET-G, ALM-G etc..7,8,9 pins of SZ11-GPRS connect respectively RUN-G,
2 pins of NET-G, ALM-G, a termination 3.3V power supplys of R1J1, R1J2, R1J3, another termination RUN-G, NET-G, ALM-G
1 pin.R1J4 mono- terminates 3.3V power supplys, the P7 of 10 pins and gateway circuit MSP430F5325 of a termination SZ11-GPRS
Pin.R1J5 mono- terminates 3.3V power supplys, the P76 of 14 pins and gateway circuit MSP430F5325 of another termination SZ11-GPRS
Pin.C1J1 mono- terminates 20 pins and GND of SZ11-GPRS, 21 pins of another termination SZ11_GPRS.21 pins connect simultaneously
5V power supplys.The 22 of SZ11-GPRS, 23 pins meet the J_RS232_RS_TXD1 and J_ of gateway circuit MSP430F5325 respectively
RS232_RS_RXD1 pins.28 pins of SZ11-GPRS connect gateway circuit MSP430F5325 P75 pins and R1J6,
C1J2, R1J6, C1J2 other end meet 3.3V power supplys and GND respectively.
Further, the flow sensor in flow sensor operating circuit configures in the parking lot that bicycle road passes in and out
Entrance, each mouth is at least one, and the gateway deployment in gateway operating circuit is in the sentry box of entrance.
The course of work of the system is as follows：
When the system works, flow sensor detects vehicle and passes through information, and result is passed through 433M less radio-frequency moulds
Block is sent to gateway operating circuit, and gateway differentiates vehicles while passing actual direction by the information that flow sensor detects, and will
Information of vehicle flowrate is uploaded to host computer in real time, completes information transmission.
The advantage of the invention is that：
1, it is deployed in the parking lot of bicycle road disengaging.
2, real-time perception vehicle enters or is driven out to.
3, has the parking lot induction parking function of City-level.
4, have GPRS remote monitoring systems.
5, there is RS485 communication interfaces
Description of the drawings
Fig. 1 is the overall structure block diagram of the bicycle road entrance vehicle flow detection system the present invention is based on self-identifying.
Fig. 2 is the gateway working circuit diagram of the present invention.
Fig. 3 is the electric power management circuit figure of the present invention.
Fig. 4 is the RS485 telecommunication circuit figures of the present invention.
Fig. 5 is the flow sensor operating circuit of the present invention.
Fig. 6 is the GPRS module working circuit diagram of the present invention.
Specific implementation mode
The present invention is described in detail below in conjunction with attached drawing.
Fig. 1 is overall structure block diagram of the present invention, a kind of bicycle road entrance vehicle Flow Detection based on self-identifying of the present invention
System include host computer, gateway operating circuit, electric power management circuit, RS485 telecommunication circuits, flow sensor operating circuit,
433M modules, GPRS module.
Host computer is connected to gateway operating circuit by GPRS module and RS485 telecommunication circuits, and visitor is accessed using BS frameworks
Realize data transmission in family end；Gateway operating circuit respectively with electric power management circuit, RS485 telecommunication circuits, 433M modules, GPRS
Module is connected；Electric power management circuit is connected with RS485 telecommunication circuits, 433M modules, GPRS module respectively；Flow sensing
Device operating circuit is connected by 433M modules with gateway operating circuit, realizes twireless radio-frequency communication.
Fig. 2 is the gateway working circuit diagram of the present invention.The gateway operating circuit includes microcontroller, wrist-watch crystal oscillator, 12M crystalline substances
It shakes, capacitance C8, C9, microcontroller is MSP430F5325 microcontrollers, external crystal oscillator between the pin 69,70 of microcontroller, crystal oscillator
Both ends are connected with one end of one end of capacitance C8 and C9 respectively, and the other end of C8 is connected and is grounded with the other end of C9, microcontroller
Pin 40,41 connect RS485 telecommunication circuits, host computer is connected by GPRS module in real time, the pin 31 of microcontroller, 32,
33,34,35,36 connection 433M modules, realize the information exchange of gateway and flow sensor.
Fig. 3 is the electric power management circuit figure of the present invention.The electric power management circuit includes the first, second power conversion chip,
First power conversion chip is LM2676-5, and 2 feet of the first power conversion chip connect the anode of DC power supply 24V inputs, and even
The anode of filter capacitor C2 is connect, 4,8 pins connect the ground terminal of 24V power supplys with the cathode of filter capacitor C2, and 3 feet connect an electricity
Output 5V voltages after sense L2, cathode of 1 foot as the output diode D1 of chip power, the plus earth of diode D1, L2's
Filter capacitor C3 is accessed between another point and ground constitutes electric power loop；Second source conversion chip is ASM1117-XX, is constituted
3 feet of 3.3V direct voltage outputs, second source conversion chip connect the anode of DC power supply 5V inputs, and connect filter capacitor
The anode of C6,1 pin connect the ground terminal of 5V power supplys with the cathode of filter capacitor C6, and 2 feet export 3.3V voltages as return terminal, and 2
Anode of the foot as the external filter capacitor C7 of output of chip power, the cathode ground connection of C7, the output end of DC voltage 3.3V with
The indirect instruction of concatenated resistance R2 and Light-emitting diode LED 3 as power supply on ground.
Fig. 4 is RS485 telecommunication circuit figures.The RS485 telecommunication circuits include RS485 chips, Schottky diode D11,
D12, D13, self-healing fuse F1, F2, discharge tube G1, resistance R11, output interface J3.RS485 chips be MAX485,1,4
Pin is connect with output interface J3, and 2,3 pins are connect with 36 feet of MSP430F5325 microcontrollers, and 8 feet connect power management module
The 5V voltages of output, 7 feet connect one end of R11 and 1 pin of D11, D13, F1,6 feet ground connection, the other end of R11, the 2 of D11
The foot of foot, the 1 of D12 and 2,2 feet of D13, F2 1 foot be grounded, 1 pin of discharge tube G1 connects 2 pins of F1, the 2 of discharge tube G1
Pin connects 2 pins of F2, the 3 pins ground connection of discharge tube G1.
Fig. 5 is the flow sensor working circuit diagram of the present invention.The flow sensor operating circuit includes microcontroller, and three
Axle sensor HMC5983, resistance R5, R6, Schottky diode V5, V6,433 modules, microcontroller MSP430F2553, monolithic
External 433 module of 12,16,17,18,22,23 pins of the external wrist-watch crystal oscillator Y1 of 26,27 pins of machine, microcontroller are realized and net
5,10,11 pins of the information sharing of pass, microcontroller distinguish 15,16,1 pin of external HMC5983, receiving sensor detection
The GEOMAGNETIC CHANGE information arrived, the cathode of 16 pins external R5, V5 of HMC5983, the cathode of 1 pin external R6, V6, R5 and R6
The anode of forming circuit, V5 and V6 are grounded respectively.
Fig. 6 is the GPRS module working circuit diagram of the present invention.The GPRS module includes SZ11-GPRS chips, resistance
R1J1, R1J2, R1J3, R1J4, R1J5, R1J6, capacitance C1J1, C1J2, LED light RUN-G, NET-G, ALM-G etc..SZ11-
7,8,9 pins of GPRS connect 2 pins of RUN-G, NET-G, ALM-G respectively, and the one of R1J1, R1J2, R1J3 terminates 3.3V power supplys,
1 pin of another termination RUN-G, NET-G, ALM-G.R1J4 mono- terminates 3.3V power supplys, 10 pins of a termination SZ11-GPRS
With the P7 pins of gateway circuit MSP430F5325.R1J5 mono- terminate 3.3V power supplys, it is another termination SZ11-GPRS 14 pins and
The P76 pins of gateway circuit MSP430F5325.C1J1 mono- terminates 20 pins and GND of SZ11-GPRS, another termination SZ11_
21 pins of GPRS.21 pins connect 5V power supplys simultaneously.The 22 of SZ11-GPRS, 23 pins connect gateway circuit respectively
J_RS232_RS_TXD1 the and J_RS232_RS_RXD1 pins of MSP430F5325.28 pins of SZ11-GPRS connect gateway electricity
The P75 pins and R1J6, C1J2 of road MSP430F5325, R1J6, C1J2 other end meet 3.3V power supplys and GND respectively.
The course of work of the present invention is as follows：
A kind of bicycle road entrance vehicle flow detection system based on self-identifying, including configuration stop what bicycle road passed in and out
Two flow sensors of parking lot entrance are deployed in the gateway near entrance in sentry box and the upper computer software on backstage.
Sensor is connected with gateway by 433M wireless radio frequency modules, gateway by RS485 circuits and GPRS remote communication modules with
Host computer establishes connection.
When the system works, two flow sensor detection vehicles pass through information, and result is wirelessly penetrated by 433M
Frequency module is sent to gateway operating circuit, and gateway differentiates vehicles while passing actual direction by the information that sensor detects, and will
Information of vehicle flowrate is uploaded to host computer in real time, completes information transmission.
When the automatic identification system works, power input is 24V direct currents, will by the DC-DC conversion chips such as T1, T2
24V direct currents are converted to the power supply of system needs；433M modules and GPRS module communicate use with external system for system, and even
Hand-held setting instrument is connect, realizes installation or debugging corrective action.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
All any modification, equivalent and improvement etc., should be included in the invention made by within the spirit and principle of innovation and creation
Protection domain within.
Claims (8)
1. a kind of vehicle flow detection system of the bicycle road entrance based on self-identifying, it is characterised in that：Including host computer, gateway
Operating circuit, electric power management circuit, flow sensor operating circuit, RS485 telecommunication circuits, GPRS module, 433M modules, it is upper
Machine is connected to gateway operating circuit by GPRS module and RS485 telecommunication circuits, and gateway operating circuit is electric with power management respectively
Road, RS485 telecommunication circuits, 433M modules are connected, electric power management circuit respectively with gateway operating circuit, 433M modules, GPRS
Module, RS485 telecommunication circuits are connected, and RS485 circuits are connected with GPRS module simultaneously.
2. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：The gateway operating circuit includes microcontroller, wrist-watch crystal oscillator, 12M crystal oscillators, capacitance C8, C9, microcontroller MSP430F5325
Microcontroller, external crystal oscillator between the pin 69,70 of microcontroller, the both ends of crystal oscillator one end phase with one end of capacitance C8 and C9 respectively
Even, the other end of C8 is connected and is grounded with the other end of C9, and the pin 40,41 of microcontroller connects RS485 telecommunication circuits, passes through
GPRS module connects host computer in real time, and the pin 31,32,33,34,35,36 of microcontroller connects 433M modules, realizes gateway and stream
The information exchange of quantity sensor operating circuit.
3. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：The electric power management circuit includes the first, second power conversion chip, and the first power conversion chip is LM2676-5, and first
2 feet of power conversion chip connect the anode of DC power supply 24V inputs, and connect the anode of filter capacitor C2,4,8 pins and filtering
The ground terminal of the cathode connection 24V power supplys of capacitance C2,3 feet export 5V voltages after connecting an inductance L2, and 1 foot is as chip power
The cathode of output diode D1, the plus earth of diode D1 access filter capacitor C3 and constitute electricity between another point and ground of L2
Resource loop；Second source conversion chip is ASM1117, constitutes 3.3V direct voltage outputs, and 3 feet of second source conversion chip connect
The anode of DC power supply 5V inputs, and the anode of filter capacitor C6 is connected, 1 pin connects 5V power supplys with the cathode of filter capacitor C6
Ground terminal, 2 feet export 3.3V voltages, the anode that exports external filter capacitor C7 of 2 feet as chip power, C7 as return terminal
Cathode ground connection, the output end of DC voltage 3.3V and the indirect concatenated resistance R2 on ground and Light-emitting diode LED 3 are as power supply
Instruction.
4. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：The RS485 telecommunication circuits include RS485 chips, Schottky diode D1, D2, D3, self-healing fuse F1, F2, discharge tube
G1, resistance R11, output interface J3.RS485 chips are MAX485, and 1,4 feet connect with output interface J3,2,3 feet and
36 feet of MSP430F5325 microcontrollers connect, and 8 feet connect the 5V voltages of power management module output, 7 feet connect R11 one end and
1 pin of D1, D3, F1,6 feet ground connection, the other end of R11,2 feet of D1,1 and 2 feet of D2,2 feet of D3, F2 1 foot be grounded,
1 pin of discharge tube G1 connects 2 pins of F1, and 2 pins of discharge tube connect 2 pins of F2, the 3 pins ground connection of discharge tube G1.
5. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：The flow sensor operating circuit includes microcontroller, three-axis sensor HMC5983, resistance R5, R6, Schottky diode
V5, V6,433 modules, microcontroller MSP430F2553, the external wrist-watch crystal oscillator Y1 of 26,27 pins of microcontroller, microcontroller 12,
16, external 433 module of 17,18,22,23 pins realizes that the information sharing with gateway, 5,10, the 11 pins difference of microcontroller are external
15,16,1 pin of HMC5983, the GEOMAGNETIC CHANGE information that receiving sensor detects, 16 pins external R5, V5 of HMC5983
Cathode, the cathode of 1 pin external R6, V6, R5 and R6 forming circuits, the anode of V5 and V6 are grounded respectively.
6. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：The GPRS module includes SZ11-GPRS chips, resistance R1J1, R1J2, R1J3, R1J4, R1J5, R1J6, capacitance C1J1,
C1J2, LED light RUN-G, NET-G, ALM-G etc..7,8,9 pins of SZ11-GPRS connect the 2 of RUN-G, NET-G, ALM-G respectively
Pin, a termination 3.3V power supplys of R1J1, R1J2, R1J3,1 pin of another termination RUN-G, NET-G, ALM-G.The one end R1J4
Connect 3.3V power supplys, the P7 pins of 10 pins and gateway circuit MSP430F5325 of a termination SZ11-GPRS.R1J5 mono- is terminated
3.3V power supplys, the P76 pins of 14 pins and gateway circuit MSP430F5325 of another termination SZ11-GPRS.C1J1 mono- is terminated
20 pins and GND of SZ11-GPRS, 21 pins of another termination SZ11_GPRS.21 pins connect 5V power supplys simultaneously.SZ11-GPRS
22,23 pins connect J_RS232_RS_TXD1 the and J_RS232_RS_RXD1 pins of gateway circuit MSP430F5325 respectively.
28 pins of SZ11-GPRS connect the P75 pins and R1J6, C1J2 of gateway circuit MSP430F5325, R1J6, C1J2 other end point
3.3V power supplys and GND are not met.
7. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 1, feature exist
In：Flow sensor in flow sensor operating circuit configures the parking lot entrance passed in and out in bicycle road, and each mouth is at least
One, the gateway deployment in gateway operating circuit is in the sentry box of entrance.
8. a kind of bicycle road entrance vehicle flow detection system based on self-identifying according to claim 7, feature exist
In：The course of work of the system is as follows：
When the system works, flow sensor detects vehicle and passes through information, and result is passed by 433M wireless radio frequency modules
It send to gateway operating circuit, gateway differentiates vehicles while passing actual direction by the information that flow sensor detects, and by wagon flow
Amount information is uploaded to host computer in real time, completes information transmission.
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| CN201810204379.6A CN108305467A (en) | 2018-03-13 | 2018-03-13 | A kind of bicycle road entrance vehicle flow detection system based on self-identifying |
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| CN201810204379.6A CN108305467A (en) | 2018-03-13 | 2018-03-13 | A kind of bicycle road entrance vehicle flow detection system based on self-identifying |
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