CN203982128U - A kind of freeway tunnel electrical partitioning control system - Google Patents
A kind of freeway tunnel electrical partitioning control system Download PDFInfo
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- CN203982128U CN203982128U CN201420402075.8U CN201420402075U CN203982128U CN 203982128 U CN203982128 U CN 203982128U CN 201420402075 U CN201420402075 U CN 201420402075U CN 203982128 U CN203982128 U CN 203982128U
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- electrical equipment
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- chip microcomputer
- electrical
- control system
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- 238000000638 solvent extraction Methods 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of freeway tunnel electrical partitioning control system.In freeway tunnel numerous electrical equipment all based on separately mutually independently electric control circuit move control, inefficiency, maintenance workload is large, wiring is complicated.The utility model comprises host computer, keyboard, display device and electrical equipment; Host computer accesses host scm as control center by interface circuit, then is connected with RS-485 bus by interface circuit; Keyboard, display all access host scm; Electrical equipment is divided to control zone in control zone, hole and tunnel, and the driving circuit of each electrical equipment is all by accessing RS-485 bus from single-chip microcomputer and interface circuit.The utility model carries out partition management to tunnel electrical equipment, reduces the phase mutual interference between distinct device feed circuit, has improved anti-interference and the stability of system.
Description
Technical field
the utility model belongs to Traffic Information Engineering & Control technical field, is specifically related to a kind of freeway tunnel electrical partitioning control system.
Background technology
In freeway tunnel, relate to the electrical equipment of numerous heterogeneitys, variety classes, varying number, and reasonable Arrangement is installed on the diverse location in tunnel.If so numerous electrical equipments all based on separately mutually independently electric control circuit move control, not only inefficiency, maintenance workload is large, wiring is complicated, the utmost point is unfavorable for electric unified control in the tunnel in.
Summary of the invention
The purpose of this utility model is to provide a kind of freeway tunnel electrical partitioning control system, the operation of all tunnels electrical equipment is unified to control in the system of combination.
The technical scheme that the utility model adopts is:
A kind of freeway tunnel electrical partitioning control system, is characterized in that:
Comprise host computer, keyboard, display device and electrical equipment;
Host computer accesses host scm by interface circuit, then is connected with RS-485 bus by interface circuit;
Keyboard, display all access host scm;
Electrical equipment is divided to control zone in control zone, hole and tunnel, and the electrical equipment of control zone, hole relates to traffic lights and variable information plate, and in tunnel, the electrical equipment of control zone relates to track indicator, horizontal portal motor, blower fan and illuminating lamp; The driving circuit of each electrical equipment is all by accessing RS-485 bus from single-chip microcomputer and interface circuit;
Host computer adopts PC; Host scm with all adopt general 89C52 type single-chip microcomputer from single-chip microcomputer.
Display adopts seven segment digital tubes 74HC595, P2.0, the P2.1 of host scm P2 mouth, SER, SRCLK, the RCLK pin that P2.2 receives respectively 74HC595.
Blower fan and from being connected with photo-coupler, resistance and NPN type triode S8050 between single-chip microcomputer.
Horizontal portal motor accesses from single-chip microcomputer by L298 chip.
The utlity model has following advantage:
The utility model carries out region according to control object and region to tunnel electrical equipment to be divided and partition management, can reduce the phase mutual interference between distinct device feed circuit, has improved anti-interference and the stability of system; With 74HC595 chip drives LED, speed, power consumption is less, and driving force is strong, and how much random the number of LED is, and the I/O mouth line taking is less, is a kind of cheap, the control system of applying flexible.
Brief description of the drawings
Fig. 1 is the utility model system connection layout.
Fig. 2 is display device control circuit figure.
Fig. 3 is keyboard equipment control circuit figure.
Fig. 4 is track indicator control circuit figure.
Fig. 5 is horizontal portal circuit for controlling motor figure.
Fig. 6 is draught fan control circuit figure.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.
A kind of freeway tunnel electrical partitioning control system that the utility model relates to, comprises host computer, keyboard, display device and electrical equipment.Host computer accesses host scm by interface circuit, then is connected with RS-485 bus by interface circuit.Keyboard, display all access host scm.Electrical equipment is divided to control zone in control zone, hole and tunnel, and the electrical equipment of control zone, hole relates to traffic lights and variable information plate, and in tunnel, the electrical equipment of control zone relates to track indicator, horizontal portal motor, blower fan and illuminating lamp; The driving circuit of each electrical equipment is all by accessing RS-485 bus from single-chip microcomputer and interface circuit.Host computer adopts PC; Host scm with all adopt general 89C52 type single-chip microcomputer from single-chip microcomputer.The present invention adopts host computer as control center, communicates, thereby reach the object of controlling electrical equipment in tunnel by the mode of serial bus.
Referring to Fig. 2, display adopts four seven segment digital tubes 74HC595, shows the place that tunnel has an accident, P2.0, the P2.1 of host scm P2 mouth, SER, SRCLK, the RCLK pin that P2.2 receives respectively 74HC595.Four numbers effective come the data of display keyboard input.In circuit, be from left to right followed successively by LED1, LED2, LED3, LED4, while sending data, first send the show code of LED4, finally send the data of LED1, keyboard is by just send data to display part next time.
Referring to Fig. 3, keyboard is 4 × 4 formula key boards, wherein has digital keys, scheme demonstration button, reset key, tunnel up-downgoing switching key, inside and outside track switching key, the confirmation button of 0-10.Digital keys can be inputted the distance of tunnel accident scene apart from tunnel portal, shows by charactron.After reset key is pressed, display section is shown as zero, and in tunnel, Mechatronic Systems state is accident free normal operation dress state.Tunnel up-downgoing switching key and inside and outside track switching key are used for selecting up-downgoing and the inside and outside track of tunnel accident generation.
Referring to Fig. 4, the state of up-downgoing and inside and outside lane control shows with LED lamp.Up-downgoing has three kinds of states: up, descending, and uplink and downlink.Inside and outside three kinds, track state: inside lane, outer track, inside lane and outer track.
Referring to Fig. 5, in native system, use respectively two direct current generators of a L298 chip drives from single-chip microcomputer for four, motor drive power supply is 12V.In native system, do not need to carry out electric machine speed regulation, therefore can connect+5V of the Enable Pin of chip voltage.P2.0, P2.1, P2.2, P2.3 pin output high level or the low level of single-chip microcomputer P2 mouth are then controlled direct current generator after driving chip L298 to amplify.When P2.0 and P2.2 output high level, when P2.1, P2.3 pin output low level, two direct current generator forwards; Need to change direction of motor rotation time, the output of four pins is contrary.In the time that needs motor stops, as long as by all output low level or high level of P2.0, P2.1, P2.2, P2.3 pin.
Referring to Fig. 6, in system, blower fan is that operating voltage is DC+12V, each from blower fan of Single-chip Controlling.In circuit, adopt a NPN type transistor amplifier to drive blower fan, collector voltage is+12V, between blower fan connection and power supply and transistor collector.Transistor base is controlled the turn-on and turn-off of triode by single-chip microcomputer P2.4 mouth output high level and low level; between single-chip microcomputer and transistor base, connect resistance and the photo-coupler of a 10K; resistance plays current limliting and pull-up resistor effect; photo-coupler can be isolated single-chip microcomputer and fan power, plays protection and Anti-Jamming.In system, triode is selected S8050, and S8050 parameter is NPN, 1W, 1.5A, 40V, 190HZ, enough for the blower fan of drive system.The driving signal of single-chip microcomputer output can be that lasting high level makes triode in conducting state, also can export the conducting of square wave control triode.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model instructions, is claim of the present utility model and contains.
Claims (4)
1. a freeway tunnel electrical partitioning control system, is characterized in that:
Comprise host computer, keyboard, display device and electrical equipment;
Host computer accesses host scm by interface circuit, then is connected with RS-485 bus by interface circuit;
Keyboard, display all access host scm;
Electrical equipment is divided to control zone in control zone, hole and tunnel, and the electrical equipment of control zone, hole relates to traffic lights and variable information plate, and in tunnel, the electrical equipment of control zone relates to track indicator, horizontal portal motor, blower fan and illuminating lamp; The driving circuit of each electrical equipment is all by accessing RS-485 bus from single-chip microcomputer and interface circuit;
Host computer adopts PC; Host scm with all adopt general 89C52 type single-chip microcomputer from single-chip microcomputer.
2. a kind of freeway tunnel according to claim 1 electrical partitioning control system, is characterized in that:
Display adopts seven segment digital tubes 74HC595, P2.0, the P2.1 of host scm P2 mouth, SER, SRCLK, the RCLK pin that P2.2 receives respectively 74HC595.
3. a kind of freeway tunnel according to claim 2 electrical partitioning control system, is characterized in that:
Blower fan and from being connected with photo-coupler, resistance and NPN type triode S8050 between single-chip microcomputer.
4. a kind of freeway tunnel according to claim 3 electrical partitioning control system, is characterized in that:
Horizontal portal motor accesses from single-chip microcomputer by L298 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402075.8U CN203982128U (en) | 2014-07-21 | 2014-07-21 | A kind of freeway tunnel electrical partitioning control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402075.8U CN203982128U (en) | 2014-07-21 | 2014-07-21 | A kind of freeway tunnel electrical partitioning control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982128U true CN203982128U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420402075.8U Expired - Fee Related CN203982128U (en) | 2014-07-21 | 2014-07-21 | A kind of freeway tunnel electrical partitioning control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203982128U (en) |
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2014
- 2014-07-21 CN CN201420402075.8U patent/CN203982128U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |