CN105654745A - Real-time traffic flow monitoring method based on intelligent handset - Google Patents

The invention discloses a real-time traffic flow monitoring method based on an intelligent handset. The method comprises steps that 1, software enters an operation state, GPS positioning for the equipment is carried out, and the speed information is further acquired; 2, the position information of the equipment is processed with priority, and whether the equipment is on a road is determined; 3, if the equipment is on the road, the speed information is then collected through the software, if the equipment is not on the road, a road information acquisition request is submitted to a server; 4, after the speed information is acquired, the acquired information is uploaded to the server by the software, and the concentrated processing on the information is carried out by the server; 5, after the position and speed information of all the equipment is acquired by the server, a speed distribution graph of each road segment is drafted, and road conditions are determined according to the acquired speed distribution graphs; 6, the road condition analysis graphs are sent by the server to all the communication equipment; and 7, after the information is acquired by the communication equipment, users are guided. If a traffic accident occurs in a certain place, alarm is emitted by a system, and the accident place is marked. The method is advantaged in that the wide coverage scope, low cost, timelines and popularity are realized, and the accident information can be mastered by the traffic police timely.

A kind of traffic flow method for real-time monitoring based on smart mobile phone

Technical field

The present invention relates to a kind of traffic throughput monitor system, particularly relate to a kind of real-time online traffic throughput monitor system based on smart mobile phone.

Background technology

Along with the development of China's economy, city automobile recoverable amount is increasing, and city vehicle congestion constantly aggravates, and this kind of phenomenon is particularly outstanding during Holidays.

The mode of existing the most frequently used monitoring traffic congestion is manpower monitoring and camera probe monitoring. When traffic congestion occurs in a certain section, by the driver link traffic police on this section, dredged according to field condition after traffic police arrives at. This kind of mode not only waste of manpower, and efficiency is lower. Another kind of mode is the image utilizing camera probe shooting street, directly judges the jam situation of road with this. There are two shortcomings in this kind of method: the first, the place that the light such as the method is not suitable for night, incity bridge is got down the highway are dim; 2nd, it is difficult to realize comprehensive monitoring when probe installation quantity is few, and the significantly rising popped one's head in and install and too much can cause monitoring cost.

For this reason, novel traffic flow monitoring means are suggested. The inductive electromagnetic method that utilizes proposed such as " patent No. 201,110,439,431 1 kinds of road traffic flow collections and Forecasting Methodology " carries out the traffic throughput monitor system monitored. When vehicle is through installing the road surface of solenoid, electromagnetic detection signal changes, system counts, by adding up the change of electromagnetism signal, the quantity crossing vehicle, and obtains in specified period the parameters such as wagon flow amount, V-bar, occupation rate and traffic density, it is achieved the monitoring of traffic flow. But solenoid needs excavated pavement when mounted, installation process is very inconvenient. Also it has been proposed that adopt the speed of supersonic method or Doppler method monitor vehicle, but ultrasonic wave is subject to outside temperature, airflow influence, and Doppler method can not monitor object that is static or low-speed motion." patent No. 201320243123 combined type traffic flow monitoring " then proposes a kind of multiple detection system being carried out and integrates the method simultaneously monitored, to reduce external environment to the interference of monitoring result, but the monitoring equipment that composite algorithm uses is many, process data are huger, complicated integral structure, and cost is higher. In addition, above-mentioned monitoring method does not possess the function drawing numeral map, and by wireless network, gained information cannot be sent to officer.

At present, having system described in relevant patent to possess the function that gained traffic information is sent to officer, such as " patent No. 201210202111 car flow-monitoring device ", this invention is provided with terminal module on car, in the gangway on road, master control module, each other receiving and transmitting signal are installed. Main control end receives the signal that terminal transmits, it is determined that all data are processed by the speed of vehicle and position, analyze current road conditions, and gained information is sent to terminal. But this system cost is higher, the gangway of automobile and each road all needs to install master control module to realize and the message exchange of terminal module.

Comparatively speaking, the with low cost and more comprehensive system of function has " the traffic flow real-time monitoring systems of the patent No. 201,210,551,324 1 kinds of unconscious participations ". This invention is a kind of traffic flow monitoring technology based on Android operation system, wireless communication technology and network technology. Its principle of work is: acceleration and the GPS coordinate information 1) being arranged on the smart mobile phone end software active acquisition mobile phone possessing acceleration transducer function, and is uploaded onto the server; 2) institute's value is analyzed by server, utilizes acceleration change and GPS coordinate information to calculate somewhere and traffic jam occurs, and information is sent to smart mobile phone; 3) in the map information at smart mobile phone end interface, traffic information is shown in a graphical form. The weak point that this system exists is: the first, and this system is mainly based on Android operation system, and the mobile phone terminal of other operating systems cannot use, and server also cannot obtain the information of these mobile phone place vehicles; 2nd, this system using the acceleration change of equipment as judge road conditions according to (when automobile runs into traffic jam can start and stop frequently, acceleration, acceleration), but the pedestrian on road also can carry the equipment that this system is housed, their acceleration and positional information also can be collected and be difficult to distinguish with vehicle by serviced device, thus cause data to cause confusion; 3rd, this system does not possess the function of traffic accident monitoring.

To sum up, need a new traffic throughput monitor system at present, it is possible to real time on-line monitoring traffic flow information, for needing to know that appointing of traffic information people can provide real-time road condition information, effectively alleviate the situation of traffic congestion with this.

Summary of the invention

1, the object of the present invention.

The present invention is in order to solve conditions for equipment use limitation in prior art, engineering amount is big, easily disturb between cost height, signal, and traffic information transmits the problems such as data are comprehensive not in real time, and propose a kind of traffic flow method for real-time monitoring based on mobile communication device.

2, the technical solution adopted in the present invention.

The real-time online traffic throughput monitor system based on smart mobile phone of the present invention, comprises the communicator with navigation locating function, monitors in accordance with the following steps:

Step 1, initialize, communicator initialize receives from the current traffic information of server, collects the position and speed information of this communicator;

After step 2, information gathering, carry out analyzing judgement to the positional information of communicator, judge whether on urban district or highway, if on urban district or highway, then jump to step 3;If not on urban district or highway, then inquire about current traffic information to server;

Step 3, the position and speed information of communicator is uploaded onto the server by wireless network;

Step 4, according to velocity estimated crossing, it is divided into unobstructed road conditions, peak period road conditions, traffic congestion road conditions, crossroad, accident road conditions:

The travelling speed of unobstructed its vehicle of road conditions is fast, and velocity distribution does not steadily have larger fluctuation;

Peak period road conditions are in the road of peak period on and off duty, and road side is in unobstructed state, and another side of road slightly blocks up, and running velocity is slower;

Traffic congestion road conditions, during traffic congestion, the traveling speed of vehicle is very slow;

Crossroad, road side speed trends towards 0 gradually, and another side car speed is fast, and vehicle is more discrete;

Accident road conditions, once there is traffic accident, accident vehicle speed is 0, and the speed of surrounding vehicles is central distribution, and namely the closer to the scene of the accident, the speed of vehicle is more slow;

Step 5, carry out road condition analyzing after make road conditions numeral map, and map is sent to communicator.

Further in specific embodiment, mobile communication device is positioned by GPS or the Big Dipper or Galileo.

Further in specific embodiment, after completing described step 5, road conditions are analyzed after obtaining map by communicator automatically, select to arrive at the most suitable route in point of destination for officer.

Further in specific embodiment, now there is traffic accident in somewhere, and system can give the alarm, and marks place where the accident occurred.

3, the useful effect of the present invention.

(1) wide coverage: the place that country's path, motorway etc. lack camera, performance is better than existing Monitoring systems.

(2) with low cost: native system is with low cost, can realize without the need to increasing any hardware device, as long as existing smart mobile phone possesses GPS and network function substantially, installation and operation software on mobile communication devices, greatly reduce the investment of traffic monitoring manpower and material resources.

(3) real-time: native system can the information uploaded of each smart mobile phone of reception, and rapidly current traffic information is reached communicator, it is achieved Real-Time Monitoring, transmitted data amount, within 16 bytes, only needs to upload position and speed information that GPS collects; The data of the expression road degree of crowding being through processed compressed obtained during inquiry roads information, each hundred meters of roads within 4 bytes, any time anywhere can inquire.

(4) for the entire people: native system needs Involvement of public community, transport information is reached server by smart mobile phone by user, and such server could obtain the traffic information in national all sections. Meanwhile, any user can inquire about the traffic conditions of any road of any moment.

(5) safety is easy-to-use: based on cloud data processing, need to agree to could collect data through user and upload; Possesses traffic accident monitoring function.

(6) the traffic accident monitoring function of native system, it is possible to allow traffic police obtain accident information in time, the expansion that user avoids accident generation section according to gained information as far as possible thus helps accident treatment to work.

Accompanying drawing explanation

Fig. 1 be road unobstructed time car speed distribution plan,

Car speed distribution plan when Fig. 2 is up/down class peak period,

Car speed distribution plan when Fig. 3 is traffic congestion,

Fig. 4 is crossroad place car speed distribution plan,

Car speed distribution plan when Fig. 5 traffic accident occurs,

Fig. 6 is the digital map drawn after road condition analyzing,

Fig. 7 is native system principle of work schematic diagram,

Fig. 8 is native system workflow diagram, and wherein left figure is communication device software workflow, and right figure is server workflow.

Embodiment

In order to enable Patent Office auditor especially the public clearly understand the technical spirit of the present invention and useful effect, applicant will do explanation in detail below by way of example, but it not all the restriction to the present invention program to the description of embodiment, any according to being only formal and the equivalent transformation of unsubstantiality all should be considered as the technical scheme category of the present invention done by present inventive concept.

Embodiment

Mobile communication device must have GPS or the location such as the Big Dipper or Galileo function. Native system runs the software installed on the communication device, obtains position and the speed information of vehicle in real time.

After running software, communicator receives the current traffic information from server automatically, and starts to collect the position and speed information of this communicator position. After information gathering is complete, first the positional information of equipment is processed by software, and whether judgment device is on urban district or motorway. If equipment is on a highway, gained information is uploaded onto the server by software again by wireless network.

After the speed that server collects equipment and positional information, start road conditions to be analyzed. The computation model analyzed is according to being: when road conditions are different, the distribution situation of running velocity is also different. Native system obtains the speed of all devices on certain section of highway, and becomes velocity profile according to these numeric renderings, judges the jam situation in this section with this. Being specially, the travelling speed of unobstructed its vehicle of road is fast, and velocity distribution does not steadily have larger fluctuation as shown in Figure 1. The road being in peak period on and off duty, road side is in unobstructed state, and another side of road slightly blocks up, and running velocity is relatively slow, but velocity distribution is relatively steadily as shown in Figure 2. During traffic congestion, the traveling speed of vehicle is very slow, and its distribution is as shown in Figure 3. Crossroad place (when sending out a warning), usually as shown in Figure 4, road side speed trends towards 0 to its velocity distribution gradually, and another side car speed is fast, and vehicle is more discrete. Once there is traffic accident, accident vehicle speed is 0, and the speed of surrounding vehicles is central distribution, and namely the closer to the scene of the accident, the speed of vehicle is more as shown in Figure 5 slow.

After software upload information, all data are processed by server, and map information as shown in Figure 6, and is sent to all communicators by the digital map drawing out description road conditions. Road conditions also can be analyzed after obtaining map by equipment automatically, selects to arrive at the most suitable route in point of destination for officer.