CN110677817A - Vehicle-mounted machine positioning communication method - Google Patents
Vehicle-mounted machine positioning communication method Download PDFInfo
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- CN110677817A CN110677817A CN201910936081.9A CN201910936081A CN110677817A CN 110677817 A CN110677817 A CN 110677817A CN 201910936081 A CN201910936081 A CN 201910936081A CN 110677817 A CN110677817 A CN 110677817A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Traffic Control Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a vehicle-mounted machine positioning communication method, wherein vehicles A, B, a vehicle-mounted Zigbee module, and a vehicle-mounted machine N are provided, when communication and positioning of part or all vehicles are normal, the part or all vehicles can broadcast vehicle positioning data at the frequency of 1HZ, and the vehicle positioning data can be provided for vehicles needing positioning compensation. When the vehicle-mounted machine A locates the fault, waiting for receiving positioning information broadcast sent by other vehicle broadcast; if the vehicle-mounted machine A receives positioning information broadcast by other vehicle-mounted machines with normal positioning, filling a positioning information packet of the vehicle-mounted machine A with the position information and transmitting the positioning information packet to a background, wherein the transmission interval of the positioning data is t seconds, and the positioning data is uploaded every t seconds; and when the positioning information broadcast by other vehicle-mounted machines is not received within t seconds, immediately uploading the positioning information broadcast packet received by the vehicle-mounted machine A for the first time after t seconds. The invention can realize auxiliary positioning and scheduling data transmission; the amount of data transferred is a small amount of data.
Description
Technical Field
The invention belongs to the technical field of bus vehicle-mounted auxiliary equipment, and is suitable for a vehicle networking auxiliary positioning communication technology of TM8732 and TM8760 series vehicle-mounted product users.
Background
At present, buses all contain vehicle-mounted equipment for positioning and information real-time transmission, but the buses are numerous, the situations that the vehicle-mounted equipment cannot be positioned or 4G wireless communication is interrupted frequently occur in the running line or area of part of the buses, the problems of incapability of positioning and communication interruption can be caused, adverse use results are caused, and the problems are not effectively solved at present.
Disclosure of Invention
The invention aims to provide a vehicle-mounted machine positioning communication method, which is characterized in that when vehicle-mounted equipment cannot be positioned and 4G wireless communication is interrupted, positioning data and 4G communication of other vehicle-mounted equipment are utilized to realize auxiliary positioning and scheduling data transmission; the amount of data transferred is a small amount of data (transfer of non-audio-visual data).
The technical scheme adopted for realizing the purpose is as follows: a positioning communication method for a vehicle-mounted machine is characterized in that vehicles A, B, vehicles.
When the vehicle-mounted machine A locates the fault, waiting for receiving positioning information broadcast sent by other vehicle broadcast; if the vehicle-mounted machine A receives positioning information broadcast by other vehicle-mounted machines with normal positioning, filling a positioning information packet of the vehicle-mounted machine A with the position information and transmitting the positioning information packet to a background, wherein the transmission interval of the positioning data is t seconds, and the positioning data is uploaded every t seconds; and when the positioning information broadcast by other vehicle-mounted machines is not received within t seconds, immediately uploading the positioning information broadcast packet received by the vehicle-mounted machine A for the first time after t seconds.
When the network fault positioning function of the vehicle-mounted machine A is normal, a communication compensation request is broadcasted through a zigbee module, the vehicle-mounted machine receiving the compensation request responds to the communication compensation request, the vehicle-mounted machine A is connected with a first responding device (a vehicle-mounted machine B), information such as vehicle number line number positioning data is transmitted to the vehicle-mounted machine B, and the information is transmitted to a scheduling system by the vehicle-mounted machine B; after the communication compensation is completed, the vehicle-mounted machine A stops broadcasting the compensation request, starts broadcasting self-positioning information and helps surrounding non-positioning vehicles; and after t seconds, starting the broadcast compensation request again, and repeating the process until the communication is normal.
When the positioning of the vehicle-mounted machine A and the network are abnormal, the zigbee module is used for broadcasting a communication and positioning compensation request, the vehicle-mounted machine (communication and positioning) receiving the compensation request responds to the compensation request, the vehicle-mounted machine A is connected with a first responding device (vehicle-mounted machine B), information such as a vehicle number and a line number is transmitted to the vehicle-mounted machine B, and the vehicle-mounted machine B transmits the information to the dispatching system; and after the communication and positioning compensation are completed, the vehicle-mounted machine A stops broadcasting the compensation request, starts the broadcast compensation request again after t seconds, and repeats the process until the communication and the positioning are normal.
Remedial measures after system error: and (4) performing shutdown operation after the serial port is abnormal, and then trying to reinitialize and open serial port communication every 100ms until the serial port communication is normal. Further, if the zigbee data retransmission function is directly closed after 10 times of failure, the actual field test is needed to see whether the processing is needed.
In the system maintenance process, a timer detection mechanism is adopted for equipment nodes, positioning, connection and the like, so that the system stability and the real-time data processing are enhanced. The Zigbee adopts a usb hot plug mode, so that the operations of maintenance, upgrading, replacement and the like are facilitated.
The invention has the beneficial effects that: the vehicle-vehicle intercommunication main application can realize auxiliary positioning and scheduling data transmission by using positioning data and 4G communication of other vehicle-mounted equipment when the vehicle-mounted equipment cannot be positioned and the 4G wireless communication is interrupted; the amount of data transferred is a small amount of data (transfer of non-audio-visual data).
Drawings
FIG. 1 is a block diagram of sd vehicle-mounted device assisted positioning.
Fig. 2 is a timing diagram of the auxiliary communication of the communication terminal of the sd car-mounted device a.
Fig. 3 is a timing diagram of the auxiliary positioning and communication of sd car-mounted device a.
Fig. 4 is a structural relationship diagram of Zigbee data supplementary transmission.
Detailed Description
The main application purposes of vehicle-vehicle intercommunication are as follows: when the vehicle-mounted equipment cannot be positioned and the 4G wireless communication is interrupted, the positioning data and the 4G communication of other vehicle-mounted equipment are utilized to realize auxiliary positioning and scheduling data transmission; the amount of data transferred is a small amount of data (transfer of non-audio-visual data).
In order to realize the functions of data supplementary transmission and positioning compensation, when the communication and the positioning of a vehicle provided with a Zigbee module are normal, the vehicle positioning data can be broadcasted by the vehicle at the frequency of 1HZ, and the vehicle which needs the positioning compensation can be provided for use. And manual intervention treatment is not needed.
1. An auxiliary positioning function;
when the vehicle-mounted machine A locates the fault, waiting for receiving positioning information broadcast sent by other vehicle broadcast; if the vehicle-mounted machine A receives positioning information broadcast by other vehicle-mounted machines with normal positioning, the vehicle-mounted machine A uses the position information to fill a positioning information packet of the vehicle-mounted machine A and transmits the positioning information packet to a background, the transmission interval of the positioning data is 30 seconds, and the positioning data is uploaded every 30 seconds; when the positioning information broadcast by other vehicle-mounted machines is not received within 30 seconds, after 30 seconds, the vehicle-mounted machine A immediately uploads the positioning information broadcast packet once after receiving the positioning information broadcast packet for the first time; the auxiliary positioning relationship of the vehicle-mounted device a is shown in fig. 1. The on-board unit a represents any one of the on-board units A, B.
2. An auxiliary communication function;
when the network fault positioning function of the vehicle-mounted machine A is normal, a communication compensation request is broadcasted through a zigbee module, the vehicle-mounted machine receiving the compensation request responds to the communication compensation request, the vehicle-mounted machine A is connected with a first responding device (a vehicle-mounted machine B), information such as vehicle number line number positioning data is transmitted to the vehicle-mounted machine B, and the information is transmitted to a scheduling system by the vehicle-mounted machine B; after the communication compensation is completed, the vehicle-mounted machine A stops broadcasting the compensation request, starts broadcasting self-positioning information and helps surrounding non-positioning vehicles; after 30 seconds, the broadcast compensation request is started again, and the process is repeated until the communication is normal. The auxiliary communication sequence of the communication terminal of the vehicle-mounted device A for realizing the function is shown in figure 2.
3. Auxiliary positioning and auxiliary communication functions;
when the positioning of the vehicle-mounted machine A and the network are abnormal, the zigbee module is used for broadcasting a communication and positioning compensation request, the vehicle-mounted machine (communication and positioning) receiving the compensation request responds to the compensation request, the vehicle-mounted machine A is connected with a first responding device (vehicle-mounted machine B), information such as a vehicle number and a line number is transmitted to the vehicle-mounted machine B, and the vehicle-mounted machine B transmits the information to the dispatching system; and after the communication and positioning compensation are completed, the vehicle-mounted machine A stops broadcasting the compensation request, after 30 seconds, the broadcasting compensation request is started again, and the process is repeated until the communication and the positioning are normal. The timing chart of the auxiliary positioning and communication of the vehicle-mounted device A is shown in FIG. 3.
Fig. 4 shows a procedure of supplementary transmission of data using Zigbee, and supplementary transmission of data using Zigbee is a new technical solution for a vehicle-mounted device, and a field test is usually required. The interface is TM _ Detect _ Enable _ Zigbee, the ZigBee auxiliary transmission scheme is started, only one interface is provided, the transplantation and the use are convenient, and an external interface is not provided for the moment.
The internal interface program is as follows:
the running time of each vehicle is controlled to float around 5 percent on the basis of the original resource occupation.
The system error information is usually represented as zigbee serial port communication abnormity. Remedial measures after system error: and (4) performing shutdown operation after the serial port is abnormal, and then trying to reinitialize and open serial port communication every 100ms until the serial port communication is normal. And (4) considering optimization at the later stage, if 10 attempts still fail, directly closing the zigbee data retransmission function, and needing actual field test to see whether the processing is needed.
And (3) system maintenance design: for equipment nodes, positioning, connection and the like, a timer detection mechanism is adopted, and system stability and real-time data processing are enhanced. The Zigbee adopts a usb hot plug mode, so that the operations of maintenance, upgrading, replacement and the like are facilitated.
Claims (7)
1. A vehicle-mounted machine positioning communication method is characterized in that vehicles A, B, vehicles 9, vehicles N and vehicles N are provided with Zigbee modules, when communication and positioning of some or all vehicles are normal, the some or all vehicles can broadcast vehicle positioning data at the frequency of 1HZ, and the vehicle positioning data is provided for vehicles needing positioning compensation;
when the vehicle-mounted machine A locates the fault, waiting for receiving positioning information broadcast sent by other vehicle broadcast; if the vehicle-mounted machine A receives positioning information broadcast by other vehicle-mounted machines with normal positioning, filling a positioning information packet of the vehicle-mounted machine A with the position information and transmitting the positioning information packet to a background, wherein the transmission interval of the positioning data is t seconds, and the positioning data is uploaded every t seconds; when the positioning information broadcast by other vehicle-mounted machines is not received within t seconds, after t seconds, the vehicle-mounted machine A immediately uploads once after receiving the positioning information broadcast packet for the first time;
when the network fault positioning function of the vehicle-mounted machine A is normal, a communication compensation request is broadcasted through a zigbee module, the vehicle-mounted machine receiving the compensation request responds to the communication compensation request, the vehicle-mounted machine A is connected with a first responding device, information such as vehicle number line number positioning data is transmitted to a vehicle-mounted machine B, and the information is transmitted to a scheduling system by the vehicle-mounted machine B;
when the positioning and network of the vehicle-mounted machine A are abnormal, the zigbee module broadcasts a communication and positioning compensation request, the vehicle-mounted machine receiving the compensation request responds to the compensation request, the vehicle-mounted machine A is connected with the first responding equipment, information such as the vehicle number and the line number is transmitted to the vehicle-mounted machine B, and the vehicle-mounted machine B transmits the information to the scheduling system; and after the communication and positioning compensation are completed, the vehicle-mounted machine A stops broadcasting the compensation request, starts the broadcast compensation request again after t seconds, and repeats the process until the communication and the positioning are normal.
2. The vehicle-mounted machine positioning communication method according to claim 1, wherein when the network fault positioning function of the vehicle-mounted machine A is normal, after the communication compensation is completed, the vehicle-mounted machine A stops broadcasting the compensation request, starts broadcasting self-positioning information and helps surrounding non-positioning vehicles; and after t seconds, starting the broadcast compensation request again, and repeating the process until the communication is normal.
3. The vehicle-mounted device positioning communication method according to claim 1, wherein when the network failure positioning function of the vehicle-mounted device a is normal, the zigbee module broadcasts the communication compensation request, each vehicle-mounted device receiving all the compensation requests in the range P responds to the communication compensation request, the vehicle-mounted device a establishes connection with a plurality of responding devices, and transmits information such as vehicle number and line number positioning data to each vehicle-mounted device, and each vehicle-mounted device transmits the information to the dispatching system.
4. The vehicle-mounted device positioning communication method according to claim 1, wherein when both the vehicle-mounted device a positioning and the network are abnormal, the zigbee module broadcasts the communication and positioning compensation requests, the vehicle-mounted devices receiving all the compensation requests in the range P respond to the requests, the responses are information transmission of both communication and positioning, the vehicle-mounted device a establishes connection with a plurality of vehicle-mounted devices responding, and transmits the information of the vehicle number and the line number to each vehicle-mounted device, and each vehicle-mounted device transmits the information to the dispatching system.
5. The vehicle-mounted device positioning communication method according to claim 4, wherein when the vehicle-mounted device A is abnormal in positioning and network, after communication and positioning compensation are completed, the vehicle-mounted device A stops broadcasting the compensation request, and after t seconds, the broadcasting compensation request is restarted, and the process is repeated until the communication and the positioning are normal.
6. The method according to claim 1, wherein the remedial action after system error is: and (4) performing shutdown operation after the serial port is abnormal, and then trying to reinitialize and open serial port communication every 100ms until the serial port communication is normal.
7. The method according to claim 1, wherein during system maintenance, a timer detection mechanism is adopted for equipment nodes, positioning, connection and the like, so as to enhance system stability and real-time data processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910936081.9A CN110677817A (en) | 2019-09-29 | 2019-09-29 | Vehicle-mounted machine positioning communication method |
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| CN201910936081.9A CN110677817A (en) | 2019-09-29 | 2019-09-29 | Vehicle-mounted machine positioning communication method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105644472A (en) * | 2016-02-15 | 2016-06-08 | 杰发科技（合肥）有限公司 | Rapid positioning method and vehicle-mounted system |
| US20160362048A1 (en) * | 2015-06-09 | 2016-12-15 | AWARE 360 Ltd. | Self-monitoring of vehicles in a convoy |
| CN107172188A (en) * | 2017-06-13 | 2017-09-15 | 郑州天迈科技股份有限公司 | P2P update methods between mobile unit |
| CN107948938A (en) * | 2017-11-20 | 2018-04-20 | 东峡大通（北京）管理咨询有限公司 | Method, server and the vehicle of positioning vehicle |
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2019
- 2019-09-29 CN CN201910936081.9A patent/CN110677817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160362048A1 (en) * | 2015-06-09 | 2016-12-15 | AWARE 360 Ltd. | Self-monitoring of vehicles in a convoy |
| CN105644472A (en) * | 2016-02-15 | 2016-06-08 | 杰发科技（合肥）有限公司 | Rapid positioning method and vehicle-mounted system |
| CN107172188A (en) * | 2017-06-13 | 2017-09-15 | 郑州天迈科技股份有限公司 | P2P update methods between mobile unit |
| CN107948938A (en) * | 2017-11-20 | 2018-04-20 | 东峡大通（北京）管理咨询有限公司 | Method, server and the vehicle of positioning vehicle |
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