CN103646563A - Method for sensing buses passing by fixed station - Google Patents
Method for sensing buses passing by fixed station Download PDFInfo
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- CN103646563A CN103646563A CN201310548702.9A CN201310548702A CN103646563A CN 103646563 A CN103646563 A CN 103646563A CN 201310548702 A CN201310548702 A CN 201310548702A CN 103646563 A CN103646563 A CN 103646563A
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Abstract
The invention discloses a method for sensing buses passing by a fixed station. The method for sensing buses passing by the fixed station is designed by mainly adopting network technologies, communication technologies and positioning technologies. The model not only adopts a method combining functions of TOF ranging and RSSI ranging, but also is additionally provided with a time reading device in the ranging process at the same time. The method disclosed by the invention not only can acquire information of the distance between the bus and the station, but also can acquire information of the time when the bus arrives at the station.
Description
1. technical field
The present invention relates to wireless sensor network field, specifically set forth the application of wireless sensor network in intelligent transportation field, proposed in detail a kind of bus through the cognitive method of fixed station.
2. technical background
In order to improve field of traffic road utilization rate, to alleviate traffic pressure, guarantee bus can operation safety, service in high quality and scientifically scheduling, obviously, it is a kind of effective measure that public transit vehicle is implemented to real-time location, monitoring and Real-Time Scheduling management be no lack of, by this method, current urban public traffic vehicles operation can be reached a new high.
3. summary of the invention
The present invention is to provide a kind of bus through the cognitive method of fixed station.Object is to provide the information that will take bus for passenger and staff, comprises the time of the volume of the flow of passengers and bus arrival, solves passenger and blindly waits for bus, and makes its reasonable arrangement trip mode, and is convenient to staff's real time inspection bus state.
To achieve these goals, the present invention adopts following technical scheme:
(1) when bus is when nearer apart from fixed station, adopt RSSI range finding location, read time T 1 this moment simultaneously, and record; When bus is far away apart from fixed station, adopts TOF to find range and read time T 2 this moment, and recording.By time data T1 and T2, just can calculate the time that bus arrives fixed station.
(2) for often there will be as emergency conditioies such as traffic jam or traffic hazards in highway communication; when emergency condition occurs; just need to notify in time control and monitor console; by control and monitor console notice relevant departments, carrying out the relevant treatment such as evacuation again works; in order to avoid the state of affairs expands; now just need the such warning message of bus priority processing, without stand-by period sheet again, make warning message be transferred in time control and monitor console.
(3) onboard system of every bus is mainly comprised of wireless sensor network, passenger flow statistics module, video monitoring module, GPRS module, time reading device.Due to the existence of GPRS antenna, information can send to control and monitor console in the very first time, allows control and monitor console control the data on public transport stop board light-emitting diode display, facilitates passenger to go on a journey.
Preferably, time when this invention is switched with TOF range finding by recording RSSI range finding, when bus is near website and prepare RSSI when range finding, record time T 1 this moment, when bus is away from website and prepare TOF when range finding, record time T 2 this moment, then calculate the time that bus arrives this website.
Preferably, when highway communication is in an emergency, as traffic jam etc., in this case, just need to notify in time control and monitor console, then by control and monitor console notice relevant departments, carry out the relevant treatment such as evacuation and work, now just need the such warning message of fixed station priority processing, without stand-by period sheet again, make warning message be sent in time control and monitor console.
Preferably, by GPRS antenna, onboard system will be monitored the information of sword in car, comprises that the volume of the flow of passengers, monitor video, bus arrival time etc. couple together, and sends in real time control and monitor console, and control and monitor console feeds back to fixed station by these information again.
Preferably, due to all inconvenience of Traditional Man scheduling, just introduce the Managed Solution of " self start type ".The onboard system of every bus is mainly comprised of wireless sensor network, passenger flow statistics module, video monitoring module, GPRS module, time reading device.
Preferably, entrance door and exit door at bus are installed photosensitive device, when having people through car door, to produce a signal feedback to passenger flow statistical system, passenger flow statistical system is according to two quantity of information of forward and backward door, count existing how many people on car, then send information to onboard system, for despatching work personnel reference.
Accompanying drawing explanation:
Fig. 1 is that a kind of bus is through the cognitive method general flow chart of fixed station.
Fig. 2 is bus data transmission flow figure.
Fig. 3 is bus vehicle module figure.
Embodiment:
Below in conjunction with accompanying drawing and flow process, set forth that the present invention is further illustrated, as the part of this instructions, the elaboration by process flow diagram illustrates that principle of the present invention, feature, advantage and other side will become very clear by this detailed description.
As shown in Figure 1, the continuous perception image data of sensor, when having emergency condition to occur, such as traffic jam, priority processing emergency condition, if without emergency condition, according to the distance of fixed station and bus, judgement is to adopt RSSI range finding or TOF range finding, and bus compares RSSI value and setting threshold.When RSSI value is greater than threshold value, illustrate that bus is about to arrive certain fixed station, then judge the variation tendency of RSSI value, RSSI value reduces to illustrate that sensing node is nearest at previous data acquisition moment public transit vehicle and fixed station position, now utilize RSSI value to find range, and record time T 1 this moment, when bus starts away from fixed station, the RSSI value gathering is less than threshold value, start to carry out TOF range finding, record time T 2 this moment, then calculate the time T that bus arrives this website.
As shown in Figure 2, bus regularly sends information by GPRS to control and monitor console, and has judged whether that emergency condition is as traffic jam, then produces and reports to the police, if there is warning to notify the relevant departments of control and monitor console to process choking phenomenon, makes that the road is clear.As alarm free, will monitor various information, comprise time, distance, video, send to control and monitor console, and allow it control the Data Update on the light-emitting diode display of website.
As shown in Figure 3, bus vehicle module comprises distance measuring sensor, video monitor, passenger flow statistic device, time reading device, data processing module and GPRS wireless transport module.The data that collect are carried out wireless transmission by GPRS after processing by data processing module.
A kind of bus provided by the invention, through the cognitive method of fixed station, can be good at improving road utilization rate, alleviates traffic pressure.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (7)
1. bus, through a cognitive method for fixed station, is mainly a kind of cognitive method that uses network technology, the communication technology, location technology to design.Its method step is as follows:
Step 1: the continuous perception image data of wireless senser, when having emergency condition to occur, priority processing emergency condition, as without emergency condition, selects ranging scheme according to the distance between bus and fixed station;
Step 2: RSSI value and setting threshold are compared, when RSSI value is greater than threshold value, the variation tendency of judgement RSSI value, if RSSI value reduces, illustrate node previous data acquisition constantly vehicle near fixed station, now utilize RSSI value to find range, and record time T 1 now;
Step 3: when public transit vehicle starts away from fixed station, the RSSI value gathering is less than threshold value, starts to enter TOF range finding, and records time T 2 this moment;
Step 4: by time interocclusal record T1, T2, can calculate the time T that bus arrives fixed station, i.e. T=T1+ (T2-T1)/2.
2. according to right 1, require described a kind of bus through the cognitive method of fixed station, it is characterized in that:
Time when this invention is switched with TOF range finding by recording RSSI range finding, that is, and when bus is near website and while preparing RSSI range finding, record time T 1 this moment, when bus is away from website and prepare TOF when range finding, record time T 2 this moment, then calculate the time T that bus arrives this website.
3. according to right 1, require a described sharp bus through the cognitive method of fixed station, it is characterized in that:
When highway communication is in an emergency, as traffic jam etc., in this case, just need to notify in time control and monitor console, by control and monitor console notice relevant departments, carrying out the relevant treatment such as evacuation again works, now just need the such warning message of fixed station priority processing, without stand-by period sheet again, make warning message arrive in time control and monitor console.
4. according to right 1, require described a kind of bus through the cognitive method of fixed station, it is characterized in that:
Due to all inconvenience of Traditional Man scheduling, just introduce the Managed Solution of " self start type ".The onboard system of every bus is mainly comprised of wireless senser, passenger flow statistics module, video monitoring module, GPRS module, time reading device.
5. according to right 1, require described a kind of bus through the cognitive method of fixed station, it is characterized in that:
Entrance door and exit door at bus are installed photosensitive device, when having people through car door, to produce a signal feedback to passenger flow statistics module, passenger flow statistics module is according to two quantity of information of forward and backward door, to count existing how many people on car, send information to onboard system again, for despatching work personnel reference.
6. according to right 1, require described a kind of bus through the cognitive method of fixed station, it is characterized in that:
Video monitoring is total to be comprised of two video heads, before car, after car each, monitors in real time the situation in car, and becomes file to store video compress.
7. according to right 1, require described a kind of bus through the cognitive method of fixed station, it is characterized in that:
By GPRS antenna, onboard system, by the information monitoring in car, comprises that the volume of the flow of passengers, monitor video, bus arrival time etc. couple together, and sends in real time control and monitor console, and control and monitor console feeds back to fixed station by these information again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548702.9A CN103646563A (en) | 2013-11-07 | 2013-11-07 | Method for sensing buses passing by fixed station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310548702.9A CN103646563A (en) | 2013-11-07 | 2013-11-07 | Method for sensing buses passing by fixed station |
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| CN103646563A true CN103646563A (en) | 2014-03-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700159A (en) * | 2015-02-12 | 2015-06-10 | 广州市地下铁道总公司 | Monitoring and early warning system for rail transit passenger flow |
| CN106604235A (en) * | 2015-10-19 | 2017-04-26 | 中国移动通信集团公司 | Information processing method and device |
| CN107064921A (en) * | 2017-05-04 | 2017-08-18 | 袁学明 | A kind of wireless distance finding and collision prevention of vehicle method for early warning and system |
| CN109741631A (en) * | 2019-02-01 | 2019-05-10 | 南京沃旭通讯科技有限公司 | A kind of relative position detection device and its working method |
| CN109831741A (en) * | 2018-12-21 | 2019-05-31 | 泰华智慧产业集团股份有限公司 | Underground pipe gallery personnel location system |
-
2013
- 2013-11-07 CN CN201310548702.9A patent/CN103646563A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700159A (en) * | 2015-02-12 | 2015-06-10 | 广州市地下铁道总公司 | Monitoring and early warning system for rail transit passenger flow |
| CN106604235A (en) * | 2015-10-19 | 2017-04-26 | 中国移动通信集团公司 | Information processing method and device |
| CN107064921A (en) * | 2017-05-04 | 2017-08-18 | 袁学明 | A kind of wireless distance finding and collision prevention of vehicle method for early warning and system |
| CN107064921B (en) * | 2017-05-04 | 2020-04-28 | 袁学明 | Wireless ranging and vehicle anti-collision early warning method and system |
| CN109831741A (en) * | 2018-12-21 | 2019-05-31 | 泰华智慧产业集团股份有限公司 | Underground pipe gallery personnel location system |
| CN109741631A (en) * | 2019-02-01 | 2019-05-10 | 南京沃旭通讯科技有限公司 | A kind of relative position detection device and its working method |
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Application publication date: 20140319 |