CN1271580C - Wireless traffic lamp signal control method and apparatus - Google Patents
Wireless traffic lamp signal control method and apparatus Download PDFInfo
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- CN1271580C CN1271580C CN 02134449 CN02134449A CN1271580C CN 1271580 C CN1271580 C CN 1271580C CN 02134449 CN02134449 CN 02134449 CN 02134449 A CN02134449 A CN 02134449A CN 1271580 C CN1271580 C CN 1271580C
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Abstract
The present invention relates to a wireless traffic light signal control method and a device. A signal transmission method utilizes a GPRS or a CDMA2000-1X technique. A control center is connected with a traffic light signal control machine in a wireless mode of a virtual connection pipeline through a data transmission network to realize a wireless remote control traffic light signal control machine, and running state information of the traffic light signal control machine and traffic flow information of each corresponding intersection in network interconnection can be obtained in real time. The traffic light signal control machine is composed of a main control circuit template, a drive output circuit template, a communication circuit template and a graphic display/control interface template, wherein the templates are connected through bus back plates; an 8-bit microprocessor is respectively arranged on each template. When the device with the structure of the present invention and the Information transmission method are used, the traffic information can obtain bidirectional exchange, and can realize the optimization control of a control center on the traffic, in addition, the establishment and the maintenance cost of the system is low, and the system can be fast disposed and implemented.
Description
Affiliated technical field
A kind of wireless traffic light signal controlling apparatus relates to the change of traffic lights signal controlling transmission method and the improvement of traffic lights signal controlling machine.
Background technology
At present, the traffic lights signal controlling machine that China adopts mainly adopts the single-point control model, all can not link between each signal controlling machine and with Traffic management control centre.The traffic lights signal controlling machine that minority can be networked is to pass through wired connection substantially.The signal controlling machine of appropriate adoption Wireless Networking seldom also just mainly contains dual mode: the circuit type data service pattern (calling CSD in the following text) of ad Hoc wireless network or global mobile communication net (calling GSM in the following text).Owing to adopt the traffic signal controlling machine of single-point control, can not make each traffic intersection collaborative work, green wave band is difficult to form; Adopt the traffic signal controlling machine of wired networking then to need to excavate road, pipeline installation, the construction period is long, and is costly; Utilize the signal controlling machine maintenance cost height of ad Hoc wireless network, be confined to the area that minority has been opened dedicated network; Utilize the signal controlling machine of GSM net CSD pattern, communication cost is pressed the voice rate and is calculated, the communications cost height.
Summary of the invention
In order to overcome the problems referred to above of existing traffic lights signal controlling machine, the invention provides a kind of wireless traffic light signal controlling apparatus, the method for transmitting signals of this device utilizes the GPRS (calling GPRS in the following text) or the CDMA radio communication technology (calling the CDMA2000-1X technology in the following text), by data transmission network 2, control center 1 and traffic lights signal controlling machine 3 are coupled together wirelessly, the master station of control center 1 is made up of computing machine 13 and communicator 14, by utilizing the virtual connecting tube of data transmission network 2, realize that wireless remote control traffic lights signal controlling machine 3 also can obtain the traffic flow information of the running state information and the corresponding intersection that each participation is networked of traffic lights signal controlling machine 3 in real time.
The traffic lights signal controlling machine 3 of the said wireless traffic light signal controlling apparatus of the present invention is made up of governor circuit template 4, driving output circuit template 5, telecommunication circuit template 6, directly connect by bus 7 between each master die, the output terminal that drives output circuit template 5 directly is access to traffic lights 15, and each module or circuit respectively are equipped with a microcontroller MCU.
In order to utilize GPRS or CDMA2000-1X technology, by the telecommunication circuit template 6 of on the said wireless traffic lamp signal controlling machine 3 of the present invention, installing, utilize the running state information of the traffic lights signal controlling machine 3 at the control information of control center 1 and each crossing and the traffic flow information of corresponding intersection ICP/IP protocol to carry out bidirectional data exchange by data transmission network 2.Specific implementation is: wireless traffic lamp signal controlling machine 3 utilizes GPRS or CDMA-1X technical battery to connect wireless network, control center 1 passes through CSD, ISDN, XDSL or DDN mode connect surf the Internet (Internet), Virtual Private Network (calling VPN in the following text) by cellular carrier then, the traffic lights signal controlling machine 3 at control center 1 and each crossing is set up virtual the connection, the control information of control center 1, the running state information of the traffic lights signal controlling machine 3 at each crossing and the traffic flow information of corresponding intersection just can use ICP/IP protocol to carry out bidirectional data exchange by this virtual connecting tube, thereby improve the timely grasp of 1 pair of each crossing traffic situation of control center and management in time.
Because the present invention has adopted said GPRS or CDMA2000-1X technology to carry out the long-distance transmissions of data message, traffic control center 1 can set up virtual radio by data transmission network 2 easily with the traffic lights signal controlling machine 3 that all have installed this telecommunication circuit and be connected, information can be carried out two-way exchange, realizes the optimal control of control center's whole traffic in 1 pair of city; And the foundation of system and maintenance cost are low, can dispose fast and implement.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the said wireless traffic light signal controlling apparatus theory diagram of the present invention;
Fig. 2 is the structural principle block diagram of the said traffic lights signal controlling machine of the present invention;
Fig. 3 is the theory diagram of the telecommunication circuit template 6 of the said traffic lights signal controlling machine of the present invention;
Fig. 4 is the theory diagram of the driving output circuit template 5 of the said traffic lights signal controlling machine of the present invention;
Fig. 5 is the theory diagram that the present invention is used for the manual terminal 12 of wireless traffic lamp signal controlling machine.
Among the figure: 1. control center, 2. data transmission network, 3. traffic lights signal controlling machine; 4. the governor circuit template 5. drives output circuit template, 6. telecommunication circuit template; 7. bus, 8. communication microcontroller, 9. communication module; 10. peripheral power supply protection circuit, 11. external interface circuit, 12. manual terminals; 13. computing machine; 14. communicator, 15. traffic lights, 16. wagon flow testing circuit templates; 17. drive the output microcontroller; 18. the mutual inductor control circuit, 19. relay module, 20. mutual inductors; 21. amplitude limiter circuit; 22. the amplification filtering circuit, 23. pulse stabilization circuit, 24. graphic presentations/control interface template.
Embodiment
As shown in Figure 1, the said wireless traffic light signal controlling apparatus of the present invention is by control center 1, data transmission network 2 and traffic lights signal controlling machine 3 are formed, wherein the method for transmitting signals of this device utilizes GPRS or CDMA2000-1X technology, by data transmission network 2, control center 1 and traffic lights signal controlling machine 3 are coupled together wirelessly by the virtual connecting tube that utilizes data transmission network 2, realize that each crossing traffic modulating signal controller 3 of wireless remote control also can obtain the traffic flow information of the running state information and the corresponding intersection that each participation is networked of traffic lights signal controlling machine 3 in real time; The master station of control center 1 is made up of computing machine 13 and communicator 14.
Shown in Figure 2 as Fig. 1, the said traffic lights signal controlling machine 3 of the present invention is made up of governor circuit template 4, driving output circuit template 5, telecommunication circuit template 6, graphic presentation/control interface template 24, wagon flow testing circuit template 16 and traffic lights 15, wherein directly connect by bus 7 between each template, on said governor circuit template 4, driving output circuit template 5, telecommunication circuit template 6 and graphic presentation/control interface template 24, respectively be equipped with one 8 8-digit microcontroller MCU.When actual production, if improve the travelling speed of traffic lights signal controlling machine 3, can change the microcontroller MCU of said each template and adopt 16 or 32 or 64 or above microcontroller to get final product.
Use said traffic lights signal controlling machine 3 its working principles of the present invention to be: as the operator as long as by call button corresponding on the liquid crystal touch screen of clicking graphic presentation/control interface template 24, just can realize control operation to traffic lights signal controlling machine 3, after the relevant function of touch display screen curtain is sent execution command, this information is delivered to instruction on the governor circuit template 4 by bus 7, after handling, governor circuit template 4 delivers to driving output circuit template 5 by bus 7, the MCU that drives output circuit template 5 amplifies output according to instruction, and the opening of color lamp of each traffic lights 15 of control crossing gone out; Drive output circuit template 5 simultaneously the real-time running state information of traffic lights signal controlling machine 3 is delivered to governor circuit template 4, the MCU of governor circuit template 4 finish message after by telecommunication circuit template 6, information is sent it back traffic lights control center 1, thereby allow control center 1 know that the traffic lights 15 real-time street lamps at this crossing show situation.
As shown in Figure 3, the telecommunication circuit template 6 of the said traffic lights signal controlling machine 3 of the present invention is by communication microcontroller 8, communication module 9, peripheral power supply protection circuit 10 and external interface circuit 11 are formed, wherein telecommunication circuit template 6 has two workflow states: 1, when communication module 9 obtains control information from data transmission network 2, after treatment this information is delivered to communication microcontroller 8, communication microcontroller 8 is delivered to the governor circuit template 4 of traffic lights signal controlling machine 3 to this information by bus 7, power supply and power supply protections that peripheral power supply protection circuit 10 is responsible for telecommunication circuit template 6; 2, after 4 of governor circuit templates need information transmitted to deliver to communication microcontroller 8 by bus 7; communication microcontroller 8 is delivered to communication module 9 to this information and is handled; communication module 9 sends information processing later on as requested; deliver in the control center 1 through data transmission network 2, peripheral power supply protection circuit 10 is responsible for power supply and power supply protection.
As shown in Figure 4, it is the line construction synoptic diagram of the driving output circuit template 5 of the said traffic lights signal controlling machine 3 of the present invention, said driving output circuit template 5 is made up of mutual inductor control circuit 18, driving output microcontroller 17 and relay module 19, relay module 19 directly is access to each traffic lights 15 at crossing, and 18 of mutual inductor control circuits are by wherein said mutual inductor 20, amplitude limiter circuit 21, amplification filtering circuit 22 and pulse stabilization circuit 23 are formed.When the appearance electric current on the loop that drives output circuit template 5 changes, the electric current that mutual inductor 20 can be sensed on relay module 19 loops at once changes, and change information delivered on the amplification filtering circuit 22 amplify and filtering, deliver to pulse stabilization circuit 23 and judge filtering the information of extracting the back then, and the information after will judging is given to drive and exported microcontroller 17 and handle.If information explanation be the output fault of relay module 19, drive output microcontroller 17 and send warning message to governor circuit template 4 immediately, governor circuit template 4 can be sent instruction automatically traffic lights 15 are switched to yellow sudden strain of a muscle state, and reports to the police to control center 1 by telecommunication circuit template 6; This moment, amplitude limiter circuit 21 mainly played driving the protective effect of output circuit template 5.
The said wireless traffic light signal controlling apparatus of the present invention is by traffic lights Signal control Center 1, data transmission network 2 and traffic lights signal controlling machine 3 are formed, wherein because the method for transmitting signals that the present invention adopts is to utilize GPRS or CDMA2000-1X technology, by data transmission network 2, control center 1 and traffic lights signal controlling machine 3 are coupled together in the wireless mode of virtual connecting tube.The traffic policeman can be when directing traffic for convenience, can in time adjust traffic lights 15 according to the road surface situation at any time, we are in the said wireless traffic light signal controlling apparatus of the present invention, for the traffic lights signal controlling machine 3 of each traffic intersection disposes a manual terminal 12 that is used for on-the-spot modulation traffic lights signal 15 again, as Fig. 3, shown in Figure 5.The said manual terminal 12 that is used for traffic light signal controlling apparatus of the present invention adopts the form of palm PC, form by governor circuit template 4, telecommunication circuit template 6, graphic presentation/control interface template 24, different with traffic lights signal controlling machine 3 is no longer be provided with drive output circuit template 5 and need not be directly and traffic lights 15 directly join, wherein be to connect between each template, on said governor circuit template 4, telecommunication circuit template 6 and graphic presentation/control interface template 24, respectively be equipped with one 8 8-digit microcontroller MCU equally by bus 7 backboards; Wherein said graphic presentation/control interface template 24 adopts and touches control display screen as the signal input and display device, the graphic presentation of said manual terminal 12/control interface template 24 adopts the embedded Microsoft of Microsoft Windows CE Chinese Windows, and the version of said Windows CE is more than 2.11.All are through touching the signal message that control display screen 24 is compiled and edited like this, the external interface circuit 11 of the telecommunication circuit template 6 by manual terminal 12 sends to communication microprocessor 8, communication microprocessor 8 sends to governor circuit template 4 with this control information by bus 7 again, the information that governor circuit template 4 handheld terminating machines 12 need to obtain is delivered to communication microcontroller 8 by bus 7, be returned on the touch control display screen 24 of manual terminal 12 by external interface circuit 11 again, the operator just may stand in outside the crossing away from the traffic lights signal controlling machine, can on the touch control display screen 24 of manual terminal 12, assign instruction intuitively, carry out by 3 pairs of traffic lights of traffic lights signal controlling machine 15 and control in real time and obtained status information.
Adopted the wireless traffic light signal controlling apparatus of the said structure of the present invention, the traffic control instruction of sending by the computing machine 13 of traffic control center 1, steering order is sent in the communicator 14 of center wireless traffic lamp signal controlling platform, communicator 14 adopt SMS CSD GPRS TCP/IP UDP/IP CDMA2000-1X DDN ISDN mode such as xDSL connect and deliver to data transmission network 2, by GPRS the information transmission mode of CDMA2000-1X and the telecommunication circuit template 6 of traffic signal controlling machine 3 connect, steering order is sent on the telecommunication circuit template 6 by this connection, steering order after telecommunication circuit template 6 will be handled is delivered on the bus 7, pass to governor circuit template 4 then, governor circuit template 4 receives this steering order, and make corresponding operation according to instruction, as each road output of the cresset of each traffic lights 15 of control crossing, the light color at the relevant crossing of conversion shows, can in time become green ripple passage or the like to certain section emergent highway section of needs as requested Otherwise by real-time status information, fault detect information and the vehicle Flow Detection information of the traffic lights signal controlling machine 3 at each crossing virtual connecting tube by above-mentioned data transmission network 2, be sent on the large display screen of wireless traffic lamp signal controlling platform of control center 1, convenient whole zone or city traffic management center in time ensure the smooth and easy of urban transportation to the management of dredging of this zone or urban transportation.
Claims (3)
1, a kind of wireless traffic light signal controlling apparatus, by traffic lights Signal control Center (1), data transmission network (2) and traffic lights signal controlling machine (3) are formed, it is characterized in that said traffic lights signal controlling machine (3) uses ICP/IP protocol to insert data transmission network (2) by GPRS or CDMA2000-1X technology, traffic lights Signal control Center (1) utilizes CSD, ISDN, XDSL or DDN mode insert data transmission network (2), thereby set up virtual connecting tube with traffic lights signal controlling machine (3), form by computing machine (13) and communicator (14) on the master station of said traffic lights Signal control Center (1), said traffic lights signal controlling machine (3) is by governor circuit template (4), drive output circuit template (5), telecommunication circuit template (6) is formed, directly connect by bus (7) between each master die, the output terminal that drives output circuit template (5) directly is access to traffic lights (15).
2, as the said wireless traffic light signal controlling apparatus of claim 1, it is characterized in that on the bus (7) of said traffic lights signal controlling machine (3), also being connected to wagon flow testing circuit (16) and graphic presentation/control interface template (24), on said governor circuit template (4), driving output circuit template (5), telecommunication circuit template (6) and graphic presentation/control interface template (24), respectively be equipped with a 8-bit microprocessor (MCU).
3; as claim 1 or 2 said traffic light signal controlling apparatus; it is characterized in that said telecommunication circuit template (6) is by communication microcontroller (8); communication module (9); peripheral power supply protection circuit (10) and external interface circuit (11) are formed; said driving output circuit template (5) is by mutual inductor control circuit (18); driving output microprocessor (17) and relay module (19) forms; relay module (19) directly is access to each traffic lights (15) at crossing, and mutual inductor control circuit (18) is then by said mutual inductor (20) wherein; amplitude limiter circuit (21); amplification filtering circuit (22) and pulse stabilization circuit (23) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02134449 CN1271580C (en) | 2002-07-26 | 2002-07-26 | Wireless traffic lamp signal control method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02134449 CN1271580C (en) | 2002-07-26 | 2002-07-26 | Wireless traffic lamp signal control method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1471060A CN1471060A (en) | 2004-01-28 |
| CN1271580C true CN1271580C (en) | 2006-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02134449 Expired - Fee Related CN1271580C (en) | 2002-07-26 | 2002-07-26 | Wireless traffic lamp signal control method and apparatus |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452103C (en) * | 2006-12-30 | 2009-01-14 | 中国科学院武汉岩土力学研究所 | Digital monitoring wireless transmission method for geotechnical engineering and device therefor |
| WO2009089651A1 (en) * | 2008-01-16 | 2009-07-23 | Lucent Technologies Inc. | Traffic light state indication system and traffic light state indication method |
| CN101567130B (en) * | 2008-04-23 | 2010-12-22 | 中国科学院自动化研究所 | Method and system for remote fault detection of traffic signal controller |
| CN102063796B (en) * | 2010-09-26 | 2013-06-05 | 广西工学院 | Intelligent traffic control system and method based on wireless Mesh ad hoc network |
| CN102034358A (en) * | 2010-11-12 | 2011-04-27 | 沈逸君 | Digital control method of urban traffic lights |
| CN102081853B (en) * | 2010-12-03 | 2012-08-22 | 合肥工业大学 | Self-adaptive multi-level radio network signal lamp system and control method thereof |
| CN102263573A (en) * | 2011-07-22 | 2011-11-30 | 南京莱斯信息技术股份有限公司 | Wireless manually controlled answering device |
| CN104240524A (en) * | 2014-10-17 | 2014-12-24 | 天津通翔智能交通***有限公司 | Road traffic signal controller, control system and control method |
| CN105989716A (en) * | 2015-02-13 | 2016-10-05 | 北京东土科技股份有限公司 | Control method and system for traffic signal |
| CN105389999B (en) * | 2015-12-18 | 2017-12-15 | 武汉中科通达高新技术股份有限公司 | A kind of road traffic based on nerve of a covering coordinates system and method |
| CN107564298B (en) * | 2017-09-26 | 2020-07-24 | 深圳市盛路物联通讯技术有限公司 | Traffic light management method and system based on multiple antennas |
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2002
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Granted publication date: 20060823 Termination date: 20110726 |