CN205541443U - Visual intelligent control device based on request of bus rapid transit priority - Google Patents
Visual intelligent control device based on request of bus rapid transit priority Download PDFInfo
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- CN205541443U CN205541443U CN201620204645.1U CN201620204645U CN205541443U CN 205541443 U CN205541443 U CN 205541443U CN 201620204645 U CN201620204645 U CN 201620204645U CN 205541443 U CN205541443 U CN 205541443U
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Abstract
The utility model provides a visual intelligent control device based on request of bus rapid transit priority, including automobile -mounted terminal equipment and trackside auxiliary assembly, automobile -mounted terminal equipment includes automobile -mounted terminal CPU, GPS module, the directional card reader of RFID, zigBee wireless communication from quick -witted module and LCD display screen, trackside auxiliary assembly is including setting up bus priority vehicle identifiable area entry point electronic tags and the exit point electronic tags on the trackside lamp pole and setting up the zigBee wireless communication routing module on trackside electronic police monitoring rod. The utility model has the advantages of the shortcoming that the public transit driver estimated signal lamp state, comprehensive wiring and current bus priority control strategy can be overcome to higher price / performance ratio, have the construction simple, with low costs, receive external change influence little, can effectively realize the preferential control of BRT bus rapid transit signal.
Description
Technical field
This utility model relates to road traffic signal and controls technical field, and a kind of visual intelligent based on bus rapid transit priority claim controls device.
Background technology
China's major part one line at present, tier 2 cities has disposed bus rapid transit priority system the most, although distributing bus special lane on path space, but the intelligent management measures such as public transport priority signal control are embedded in Traffic Signals in Urban Roads system proportion not as good as 40%, and the BRT information of vehicles of detection is reached traffic signaling equipment by private cable or optical cable by the base station type RFID orientation card reader of the controlling of bus priority strategy mainly crossing used, then this semaphore proper extension BRT route green time or shortening red time, realize reducing the stop delay of BRT vehicle.
The deficiency of above-mentioned control strategy, one is that comprehensive wiring difficulty is big, it is impossible to make full use of existing electronic police or bayonet socket civil engineering facility, and is easily constructed by road reformation and destroy, and causes the wasting of resources；Two is the BRT vehicle being loaded with electronic tag, signal lights state can only be estimated with Bus driver, during going out walking in the night, BRT Bus driver is when distance stop line about 100 meters, just can distinguish countdown signal lights state, hastily make traveling to adjust, so may cause BRT vehicle stall or cause crossing crossing because preparing deficiency.
At present, along with development and the common people of intelligent transportation are more and more higher to the demand of controlling of bus priority, current controlling of bus priority weak point is further obvious, and this kind of bus rapid transit priority system has bigger room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of visual intelligent based on bus rapid transit priority claim to control device, utilizes Radio Transmission Technology to realize controlling of bus priority.
The technical solution of the utility model is:
A kind of visual intelligent based on bus rapid transit priority claim controls device, including vehicle-mounted terminal equipment and trackside auxiliary equipment, described vehicle-mounted terminal equipment includes car-mounted terminal CPU, GPS module, RFID orients card reader, ZigBee wireless telecommunications are from machine module and LCD display, described trackside auxiliary equipment includes public traffic in priority vehicle identification area entry point-like electron label, public traffic in priority vehicle identification regional export point-like electron label and ZigBee wireless telecommunications routing module, described public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label are arranged on the lamp stand of trackside, described ZigBee wireless telecommunications routing module is arranged on the electronic police monitoring bar of trackside；
nullThe outfan of described GPS module is connected with the input of car-mounted terminal CPU，The input of described RFID orientation card reader is connected with the outfan of public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label，The outfan of described RFID orientation card reader is connected with the input of car-mounted terminal CPU，The input of described LCD display is connected with the outfan of car-mounted terminal CPU，Described car-mounted terminal CPU and ZigBee wireless telecommunications are connected from machine module interactive mode，Described ZigBee wireless telecommunications are connected with the ZigBee wireless telecommunications host module interactive mode being bundled in traffic signaling equipment by ZigBee wireless telecommunications routing module from machine module，Described ZigBee wireless telecommunications host module is connected with traffic signaling equipment CPU interactive mode.
Described visual intelligent based on bus rapid transit priority claim controls device, described vehicle-mounted terminal equipment also includes DC24V power supply and DC/DC Power convert and mu balanced circuit, described DC24V power supply by DC/DC Power convert and mu balanced circuit be car-mounted terminal CPU, GPS module, RFID orientation card reader, ZigBee wireless telecommunications provide working power from machine module and LCD display.
Described visual intelligent based on bus rapid transit priority claim controls device, described public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label are active active electronic label, built-in high power lithium polymer minicell.
Described visual intelligent based on bus rapid transit priority claim controls device, and described ZigBee wireless telecommunications routing module provides working power by AC220V power supply, and described ZigBee wireless telecommunications host module is provided working power by traffic signaling equipment CPU.
Described visual intelligent based on bus rapid transit priority claim controls device, and the wireless operating frequency of described RFID orientation card reader, public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label is 2.4GHz～2.48GHz；Described ZigBee wireless telecommunications are 2.38 GHz～2.5GHz from the wireless operating frequency of machine module, ZigBee wireless telecommunications routing module and ZigBee wireless telecommunications host module.
Described visual intelligent based on bus rapid transit priority claim controls device, and described car-mounted terminal CPU uses STM32F407VGT6 chip.
Described visual intelligent based on bus rapid transit priority claim controls device, and described DC/DC Power convert uses XL4016 chip with mu balanced circuit.
The beneficial effects of the utility model are:
As shown from the above technical solution, this utility model has higher cost performance, Bus driver can be overcome to estimate signal lights state, comprehensive wiring and the shortcoming of current controlling of bus priority strategy, increase RFID orientation card reader and read public traffic in priority vehicle identification area entry point, exit point electronic labeling information, send public traffic in priority power solicited message, receive public traffic in priority power authorization message the function shown by LCD display, and public traffic in priority vehicle identification area entry point, exit point electronic tag may be installed on the lamp stand of roadside, ZigBee wireless telecommunications routing module may be installed on the electronic police monitoring bar of roadside, construction is simple, low cost, affected little by extraneous change, can effectively realize BRT bus rapid transit signal priority to control.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present utility model.
Detailed description of the invention
This utility model is further illustrated below in conjunction with the accompanying drawings with specific embodiment.
As it is shown in figure 1, a kind of visual intelligent based on bus rapid transit priority claim controls device, including vehicle-mounted terminal equipment 1 and trackside auxiliary equipment 2.Vehicle-mounted terminal equipment 1 includes that car-mounted terminal CPU11, GPS module 12, RFID orientation card reader 13, ZigBee wireless telecommunications are from machine module 14, LCD display 15, DC24V power supply 16 and DC/DC Power convert and mu balanced circuit 17.Trackside auxiliary equipment 2 includes public traffic in priority vehicle identification area entry point-like electron label 21, public traffic in priority vehicle identification regional export point-like electron label 22, ZigBee wireless telecommunications routing module 23 and AC220V power supply 24.Public traffic in priority vehicle identification area entry point-like electron label 21 and public traffic in priority vehicle identification regional export point-like electron label 22 are arranged on the lamp stand of trackside, and ZigBee wireless telecommunications routing module 23 is arranged on the electronic police monitoring bar of trackside.
The outfan of GPS module 12 is connected with the input of car-mounted terminal CPU11；The input of RFID orientation card reader 13 is connected with the outfan of public traffic in priority vehicle identification area entry point-like electron label 21 and public traffic in priority vehicle identification regional export point-like electron label 22, and the outfan of RFID orientation card reader 13 is connected with the input of car-mounted terminal CPU11；The input of LCD display 15 is connected with the outfan of car-mounted terminal CPU11；Car-mounted terminal CPU11 and ZigBee wireless telecommunications are connected from machine module 14 interactive mode, ZigBee wireless telecommunications are connected with ZigBee wireless telecommunications host module 31 interactive mode being bundled in traffic signaling equipment 3 by ZigBee wireless telecommunications routing module 23 from machine module 14, and ZigBee wireless telecommunications host module 31 is connected with traffic signaling equipment CPU32 interactive mode.DC24V power supply 16 is car-mounted terminal CPU11 by DC/DC Power convert with mu balanced circuit 17, GPS module 12, RFID orientation card reader 13, ZigBee wireless telecommunications provide working power from machine module 14 and LCD display 15.Public traffic in priority vehicle identification area entry point-like electron label 21 and public traffic in priority vehicle identification regional export point-like electron label 22 are active active electronic label, built-in high power lithium polymer minicell.ZigBee wireless telecommunications routing module 23 provides working power by AC220V power supply.ZigBee wireless telecommunications host module 31 is provided working power by traffic signaling equipment CPU32.
Operation principle of the present utility model:
When BRT vehicle sails public traffic in priority vehicle identification region into, the tag ID number that RFID orientation card reader 13 is sent every 400ms to the public traffic in priority vehicle identification area entry point-like electron label 21 that trackside is installed by flat board wireless receiving antenna trapping, the wireless aware information that should obtain as BRT vehicle, then passes to car-mounted terminal CPU11；After car-mounted terminal CPU11 completes to resolve, the public traffic in priority power solicited message being collectively forming by this car ID and the upstream or downstream direction acquired in GPS module 12, by ZigBee wireless telecommunications 5dBi radio-frequency antenna from machine module 14, Wireless transceiver is to the ZigBee wireless telecommunications routing module 23 closing on crossing；The ZigBee wireless telecommunications host module 31 that ZigBee wireless telecommunications routing module 23 wireless forwarding again is bound to the traffic signaling equipment 3 with this crossing；The information received is sent to traffic signaling equipment CPU32 process by ZigBee wireless telecommunications host module 31.
Traffic signaling equipment CPU32 is according to the traffic administration situation at the current crossing obtained from each Peripheral Interface, configure suitable public traffic in priority timing strategy, generate new traffic lights count down time, and the new traffic lights count down time generated is sent to ZigBee wireless telecommunications host module 31；ZigBee wireless telecommunications host module 31 transfers information to ZigBee wireless telecommunications routing module 23 by 5dBi radio-frequency antenna；ZigBee wireless telecommunications routing module 23 wireless forwarding again to ZigBee wireless telecommunications from machine module 14；ZigBee wireless telecommunications are resent to car-mounted terminal CPU11 from machine module 14；After car-mounted terminal CPU11 resolves, retransmit to LCD display 15 and show in the way of picture and text.So far, BRT vehicle drivers gets public traffic in priority power authorization message, adjusts vehicle running state with this, and makes BRT vehicle can preferentially be smoothly through crossing, or reduces the parking waiting time.
When BRT vehicle leaves public traffic in priority vehicle identification region, RFID orientation card reader 13 captures the tag ID number that public traffic in priority vehicle identification regional export point-like electron label 22 sends, the wireless aware information that should obtain as BRT vehicle, then passes to car-mounted terminal CPU11；After car-mounted terminal CPU11 completes to resolve, sending public traffic in priority power request ending message from machine module 14, ZigBee wireless telecommunications routing module 23 and ZigBee wireless telecommunications host module 31 to traffic signaling equipment CPU32 by ZigBee wireless telecommunications, traffic signaling equipment CPU32 controls traffic lights and recovers normal operating condition.
Car-mounted terminal 1 is the key control unit of whole device, and the STM32F407VGT6, STM32F407VGT6 that car-mounted terminal CPU11 selects ST Microelectronics to produce is the flush bonding processor based on ARM Cortex-M4 kernel of 32 low-power consumption.This processor carries four USART serial ports and two UART serial ports, it is possible to carry out data interaction with multiple peripheral hardwares simultaneously.Wherein, USART2 Yu RFID orientation card reader 13 carries out data interaction, and the wireless operating frequency of RFID orientation card reader 13 is 2.4GHz～2.48GHz, uses plate aerial, has good anti-interference.USART3 Yu ZigBee wireless telecommunications carry out data interaction from machine module 14, ZigBee wireless telecommunications are 2.38GHz～2.5GHz from the wireless operating frequency of machine module 14, not only there are 16 passages of ZigBee wireless standard, also there are 9 extended frequency bands, can effectively avoid Wi-Fi, the on-air radio signal disturbing of other 2.4GHz such as bluetooth, its transmit power is 22dbm, receiving sensitivity reaches-106dbm, wireless line-of-sight transmission distance is up to 2.5 kms (using 5dBi omnidirectional antenna), data space transfer rate is up to 3Kbps～1Mbps, without hindrance net postpones, use time and space weights homeostatic principle, route time is short, communication robust is reliable.USART6 is connected with LCD display 15, and LCD display 15 uses 16 very color 480*272 resolution, and display brightness reaches 400cd/m2, display content can be seen under fluorescent light clearly, be finally completed public traffic in priority power request picture and text showing with this.
The USART6 of car-mounted terminal CPU11 is connected on 3,4 pins of LCD display 15 interface J5 by RS232 electrical level transferring chip；In like manner, the USART2 port of car-mounted terminal CPU11 is connected on RFID orientation the 5 of J4 of card reader 13 interface, 6 pins by RS232 electrical level transferring chip.DC24V power supply 16 provides stable DC12V working power by DC/DC Power convert and mu balanced circuit 17 to RFID orientation card reader 13, LCD display 15.
ZigBee wireless telecommunications become hardware watchdog circuit from the periphery circuit design of machine module 14, use CAT823 chip, help ZigBee wireless telecommunications to power on reliably working from machine module 14.
DC/DC Power convert and mu balanced circuit 17 use the XL4016 that Shanghai Xin Long semiconductor company produces.This chip has outstanding line regulation and a load regulation, supports arbitrarily to adjust between input and output dropout voltage scope 1.25V～36V, the hardware circuit such as chip internal integrated input overvoltage protection, overcurrent protection, overheat protector, short-circuit protection.Input nominal voltage is vehicle-mounted DC24V, and circuit adapts to input voltage fluctuation 15V～40V range, by being sampled the output voltage sample circuit being made up of R1 with R2, adjusts the voltage stabilizing output that output voltage is DC12V all the time.
This utility model is Micro Energy Lose electronic unit at the active active electronic label that trackside is disposed, built-in high power lithium polymer minicell, under standard environment, it is ensured that electronic tag works 3～5 years continuously, available roadside lamp stand carries out Fast Installation, only need to change battery, without comprehensive wiring, install without considering different site environments, thus construction is simple, low cost, even if running into road local flow improvement, the system that nor affects on normally uses.Additionally, data transmission uses ZigBee wireless communication technique, only need to be by electronic police monitoring bar and AC220V power supply, just ZigBee communication module can be installed and bar antenna uses as router, setting up the ZigBee wireless telecommunications that ZigBee wireless telecommunications host module that a traffic signaling equipment carries and BRT vehicle on-board terminal carry and carry out the air communication link of wireless data bidirectional transmit-receive from machine module, each item data transmits not by physical environment.
Car-mounted terminal of the present utility model, RFID is used to orient card reader, the electronic labeling information being easy to read trackside deployment comes for BRT vehicle location, and the ZigBee wireless communication data using maturation transmits and receives bidirectional technique, use 2.38GHz～2.5GHz operating frequency, and there are 25 passages, Wi-Fi in society can be evaded physically, the less radio-frequency interference such as bluetooth, data transmit-receive is accurate, make car-mounted terminal can either send this car public traffic in priority power solicited message, it is able to receive that again the public traffic in priority power authorization message that traffic signaling equipment is beamed back, and traffic lights count down time can be shown by LCD display, the traffic lights present situation of the hundreds of meter of long way mouth in front is examined without BRT vehicle drivers naked eyes, it is easy to user and adjusts calmly driving states.
The above embodiment is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present utility model determine.
Claims (7)
1. a visual intelligent based on bus rapid transit priority claim controls device, it is characterized in that: include vehicle-mounted terminal equipment and trackside auxiliary equipment, described vehicle-mounted terminal equipment includes car-mounted terminal CPU, GPS module, RFID orients card reader, ZigBee wireless telecommunications are from machine module and LCD display, described trackside auxiliary equipment includes public traffic in priority vehicle identification area entry point-like electron label, public traffic in priority vehicle identification regional export point-like electron label and ZigBee wireless telecommunications routing module, described public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label are arranged on the lamp stand of trackside, described ZigBee wireless telecommunications routing module is arranged on the electronic police monitoring bar of trackside；
nullThe outfan of described GPS module is connected with the input of car-mounted terminal CPU，The input of described RFID orientation card reader is connected with the outfan of public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label，The outfan of described RFID orientation card reader is connected with the input of car-mounted terminal CPU，The input of described LCD display is connected with the outfan of car-mounted terminal CPU，Described car-mounted terminal CPU and ZigBee wireless telecommunications are connected from machine module interactive mode，Described ZigBee wireless telecommunications are connected with the ZigBee wireless telecommunications host module interactive mode being bundled in traffic signaling equipment by ZigBee wireless telecommunications routing module from machine module，Described ZigBee wireless telecommunications host module is connected with traffic signaling equipment CPU interactive mode.
Visual intelligent based on bus rapid transit priority claim the most according to claim 1 controls device, it is characterized in that: described vehicle-mounted terminal equipment also includes DC24V power supply and DC/DC Power convert and mu balanced circuit, described DC24V power supply by DC/DC Power convert and mu balanced circuit be car-mounted terminal CPU, GPS module, RFID orientation card reader, ZigBee wireless telecommunications provide working power from machine module and LCD display.
Visual intelligent based on bus rapid transit priority claim the most according to claim 1 controls device, it is characterized in that: described public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label are active active electronic label, built-in high power lithium polymer minicell.
Visual intelligent based on bus rapid transit priority claim the most according to claim 1 controls device, it is characterized in that: described ZigBee wireless telecommunications routing module provides working power by AC220V power supply, described ZigBee wireless telecommunications host module is provided working power by traffic signaling equipment CPU.
Visual intelligent based on bus rapid transit priority claim the most according to claim 1 controls device, it is characterised in that: the wireless operating frequency of described RFID orientation card reader, public traffic in priority vehicle identification area entry point-like electron label and public traffic in priority vehicle identification regional export point-like electron label is 2.4GHz～2.48GHz；Described ZigBee wireless telecommunications are 2.38 GHz～2.5GHz from the wireless operating frequency of machine module, ZigBee wireless telecommunications routing module and ZigBee wireless telecommunications host module.
Visual intelligent based on bus rapid transit priority claim the most according to claim 1 controls device, it is characterised in that: described car-mounted terminal CPU uses STM32F407VGT6 chip.
Visual intelligent based on bus rapid transit priority claim the most according to claim 2 controls device, it is characterised in that: described DC/DC Power convert uses XL4016 chip with mu balanced circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620204645.1U CN205541443U (en) | 2016-03-17 | 2016-03-17 | Visual intelligent control device based on request of bus rapid transit priority |
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| CN201620204645.1U CN205541443U (en) | 2016-03-17 | 2016-03-17 | Visual intelligent control device based on request of bus rapid transit priority |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632201A (en) * | 2016-03-17 | 2016-06-01 | 安徽科力信息产业有限责任公司 | Visual intelligent control device and method based on bus rapid transit priority request |
| CN108898824A (en) * | 2018-07-25 | 2018-11-27 | 公安部交通管理科学研究所 | A kind of intersection bus signal priority control system and control method based on C-V2X |
-
2016
- 2016-03-17 CN CN201620204645.1U patent/CN205541443U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632201A (en) * | 2016-03-17 | 2016-06-01 | 安徽科力信息产业有限责任公司 | Visual intelligent control device and method based on bus rapid transit priority request |
| CN108898824A (en) * | 2018-07-25 | 2018-11-27 | 公安部交通管理科学研究所 | A kind of intersection bus signal priority control system and control method based on C-V2X |
| CN108898824B (en) * | 2018-07-25 | 2021-06-29 | 公安部交通管理科学研究所 | Intersection bus signal priority control system and control method based on C-V2X |
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