CN100448326C - Airport scene monitoring method - Google Patents
Airport scene monitoring method Download PDFInfo
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- CN100448326C CN100448326C CNB2006101381114A CN200610138111A CN100448326C CN 100448326 C CN100448326 C CN 100448326C CN B2006101381114 A CNB2006101381114 A CN B2006101381114A CN 200610138111 A CN200610138111 A CN 200610138111A CN 100448326 C CN100448326 C CN 100448326C
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Abstract
This invention disclosed a method of airport scenes surveillance. It includes: ground station monitoring channel; Ground station sends various applications of data and detects mobile stations information at the same time; According to the information , ground station judges Mobile Station state, and alrelates time slot for It according to the state of mobile stations in order to update ground station data. If the mobile station receives instructions from the ground station, it will report the location according to the instructions from the ground station with directive broadcasting method. Otherwise, it uses independent broadcasting method to independently choose the slot position on the radio. If the Mobile station receives instructions during the broadcast at the location, and it will report location according to the instructions from the ground station with directive broadcasting method, otherwise, It uses independent broadcasting method to independently choose the slot position on the radio. Based on the invention, it is flexible, high slot position utilization rate of resources, large capacity, and stable to monitor airport scenes.
Description
Technical field
The present invention relates to a kind of airport scene monitoring method, especially based on the airport scene monitoring method of self-organizing data chainning.
Background technology
The air-transport industry development in the nearest 20 years whole world rapidly, the ground clothes vehicle of good increasing aircraft of management and corresponding increase under limited space, changeable weather condition how, to improve utilance, the reliability on airport, become the problem that each airport must be considered.In this case, airport scene monitoring arises at the historic moment.
The airport scene monitoring system has the vectored flight device of supervision or surface car function.In the scene surveillance, all mobile radio stations on the airport (mobile device that vehicle, aircraft etc. have transmitting-receiving position message equipment is called mobile radio station) can be by the outside function of mode to realize monitoring mutually of broadcasting based on the position message of self global positioning system (Global Position System is called for short GPS) position of self-organizing data chainning.
Be the positional information of issue in time oneself, mobile radio station needs periodically broadcast location message.The broadcasting of position message can be based on the self-organizing time division multiple access self-organizing data chainning of (Self-organizing Time DivisionMultiple Access is called for short STDMA).Based on self-organizing time division multiple access (Self-organizing Time Division Multiple Access, abbreviation STDMA) self-organizing data chainning, with channel distribution is time slot, and the communication unit that each time slot can both be installed in aircraft, vehicle and the ground station is used for sending data; Be different from general time division multiple access (Time Division MultipleAccess is called for short TDMA), time slot is organized use voluntarily by all websites, and any one website is agreement selection, reservation and the use time slot of the prior agreement of basis all.Usually, the self-organizing data chainning based on self-organizing time division multiple access (Self-organizing Time Division Multiple Access is called for short STDMA) has two kinds of basic broadcasting method for monitoring: independently broadcast method for monitoring and instruction broadcasting method for monitoring.
If adopt autonomous broadcasting method for monitoring, mobile radio station is independently selected time slot, the position message of outwards broadcasting acquiescence according to the speed of acquiescence.The characteristics of this method for monitoring are that flexibility is strong, but it is insufficient to exist time interval resource to utilize, and power system capacity is little, are separated with the shortcoming of shake between message sends.
If adopt instruction broadcasting method for monitoring, ground station sends instruction to mobile radio station, and the instruction mobile radio station is in the time slot the inside of appointment or send the position message of specified type according to the speed of ground station's appointment.The characteristics of this method for monitoring are time interval resource utilance height, and power system capacity is big, and the mobile radio station message sends stable at interval, and ground station can adjust the transmission rate and the kind of mobile station location message flexibly according to the situation of mobile radio station, thereby reaches the most rational supervision.But the system expandability of this implementation method is poor, and reliability depends on the performance of ground station.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the defective of prior art, propose a kind of airport scene monitoring method, particularly based on the airport scene monitoring method of self-organizing data chainning.
For achieving the above object, the invention provides a kind of airport scene monitoring method, wherein, ground station distributes time slot may further comprise the steps:
Step a, ground station's monitor channel, execution in step b;
Step b, ground station send various application datas and detect mobile station information simultaneously;
The mobile radio station state is judged according to detection information by step c, ground station, is that mobile radio station distributes time slot according to the mobile radio station state, upgrades ground station's data, execution in step b;
Described step c is specially:
C1, ground station judge whether to monitor the time slot that certain mobile radio station independently sending default form position message or before distributing to it and are about to use, and are execution in step c2 then, otherwise, execution in step c3;
C2, ground station have judged whether that non-sleep time slot can supply to distribute, and are then to distribute non-sleep time slot to give mobile radio station, send non-sleep and instruct to mobile radio station, and execution in step b, otherwise, execution in step b;
It is static that c3, ground station judge whether to detect certain mobile radio station, is execution in step c4 then, otherwise, execution in step c5;
C4, ground station have judged whether that the sleep time slot can be then to distribute the sleep time slot to give mobile radio station, and send the sleep instruction for distributing, execution in step b, otherwise, execution in step b;
C5, ground station judge whether receive various non-network insertion request data package this moment, are then to upgrade the time slot prefiguration, and deal with data is upgraded application data, upgrades mobile site information, execution in step b, otherwise, execution in step c6;
C6, ground station judge whether receive certain mobile radio station network insertion request data package this moment, are execution in step c7 then, otherwise, execution in step b;
C7, ground station have judged whether that non-sleep time interval resource can be then to distribute non-sleep time slot to give this mobile radio station and send to insert to reply execution in step b for distributing; Otherwise, execution in step b.
The present invention can realize the flexible switching that autonomous broadcasting monitors and instruction broadcasting monitors.Therefore, this method can have the following advantages:
1, flexibility, extensibility are strong, and the row of mobile radio station dependence within reason ground station can;
2, time interval resource utilance height, power system capacity is big, and the mobile radio station message sends stable at interval.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 distributes the time slot method flow chart for ground station of the present invention;
Fig. 2 is according to the flow chart of ground station's state assignment time slot in the method shown in Figure 1;
Fig. 3 is the flow chart of mobile radio station broadcast location message of the present invention;
Fig. 4 is a mobile station initialization method flow diagram in the method shown in Figure 3;
Fig. 5 is the flow chart that mobile radio station sends the position message in the method shown in Figure 3 under the instruction broadcast state;
Fig. 6 is the flow chart that mobile radio station sends the position message in the method shown in Figure 5 under non-sleep state;
Fig. 7 is the flow chart that mobile radio station sends the position message in the method shown in Figure 5 under sleep state;
Fig. 8 is the flow chart that mobile radio station sends the position message in the method shown in Figure 3 under autonomous broadcast state.
Embodiment
Airport scene monitoring method of the present invention, as shown in Figure 1, ground station distributes time slot may further comprise the steps:
Step a, ground station's monitor channel, execution in step b;
Step b, ground station send various application datas and detect mobile station information simultaneously;
The mobile radio station state is judged according to detection information by step c, ground station, is that mobile radio station distributes time slot according to the mobile radio station state, upgrades ground station's data, execution in step b.
Ground station also will send instruction according to the situation of mobile radio station and current time slot allocation, to realize making full use of of time slot when sending instruction.Therefore, referring to Fig. 2, step c comprises following concrete steps:
C1, ground station judge whether to monitor the time slot that certain mobile radio station independently sending default form position message or before distributing to it and are about to use, and are execution in step c2 then, otherwise, execution in step c3;
C2, ground station have judged whether that non-sleep time slot can supply to distribute, and are then to distribute non-sleep time slot to give mobile radio station, send non-sleep and instruct to mobile radio station, and execution in step b, otherwise, execution in step b;
It is static that c3, ground station judge whether to detect certain mobile radio station, is execution in step c4 then, otherwise, execution in step c5;
C4, ground station have judged whether that the sleep time slot can be then to distribute the sleep time slot to give mobile radio station, and send the sleep instruction for distributing, execution in step b, otherwise, execution in step b;
C5, ground station judge whether receive various non-network insertion request data package this moment, are then to upgrade the time slot prefiguration, and deal with data is upgraded application data, upgrades mobile site information, execution in step b, otherwise, execution in step c6;
C6, ground station judge whether receive certain mobile radio station network insertion request data package this moment, are execution in step c7 then, otherwise, execution in step b;
C7, ground station have judged whether that non-sleep time interval resource can be then to distribute non-sleep time slot to give this mobile radio station and send to insert to reply execution in step b for distributing; Otherwise, execution in step b;
In said process, corresponding, mobile radio station broadcast location method of message may further comprise the steps:
The present invention also provides the concrete grammar of mobile radio station broadcast location message when providing airport scene monitoring method ground station to distribute the time slot method, referring to Fig. 3, mainly comprise following process:
In practice, because request message such as loses at the situation that can't get in touch ground station that reason causes, the station earthward that mobile radio station can continue in a period of time sends to insert and asks in order to reduce.Therefore, be that the mobile station initialization process can also be done further refinement to described step 1.Referring to Fig. 4, may further comprise the steps:
In the present embodiment, first setting-up time is 60 seconds.In other words, mobile radio station start back can send the network insertion request to stand earthward by using the time slot of keeping for the mobile radio station network insertion at random after a relatively shorter time, seek under the control of ground station, to carry out work, if do not obtain the instruction or the response of ground station, mobile radio station can be retransmitted the network insertion request in 1 minute.In case (60 seconds) do not receive the instruction or the response of ground station in long-time, mobile radio station has reason to think that ground station breaks down, thereby takes the mode access network from the primary period incremental subscription.
Send with certain Fixed Time Interval when the mobile radio station repetitive requests is instructed, therefore, step 13 further is specially: when described accumulated time during less than first setting-up time, and execution in step 12 behind one second setting-up time of delaying time.
In the present embodiment, getting first setting-up time is 60 seconds, and second setting-up time is 3 seconds.Promptly, mobile radio station start back can send the network insertion request to stand earthward by using the time slot of keeping for the mobile radio station network insertion at random after a relatively shorter time, seek under the control of certain ground station, to carry out work, if do not obtain the instruction or the response of ground station, mobile radio station can be periodic retransmission network insertion request with 3 seconds in 1 minute, in case (60 seconds) do not receive the instruction or the response of ground station in long-time, mobile radio station has reason to think that ground station breaks down, thereby takes the mode access network from the primary period incremental subscription.
Under the instruction broadcasting method, mobile radio station also might be in different states--static/near inactive state and motion state.Ground station can send sleep instruction or non-sleep instruction to mobile radio station according to the different conditions of mobile radio station, to regulate the frequency of mobile radio station broadcast location message, makes full use of time interval resource.Therefore, the instruction broadcast location method of message that mobile radio station adopts the instruction broadcasting method to send by ground station, referring to Fig. 5, step 2 further may further comprise the steps:
That is, when mobile radio station is worked, judge that the ground station's instruction that receives is that the sleep instruction also is non-sleep instruction under instruction mode.When receiving the sleep instruction, mobile radio station, is got 1 time/minute by the sleep speed transmission message of ground station's appointment in the present embodiment by sleep pattern work.Mobile radio station is held when receiving non-sleep instruction, works under non-sleep pattern, press the non-sleep speed transmission message of mobile radio station appointment, gets in the present embodiment 30 times/minute.
After time slot used up, mobile radio station judged whether to receive once more the instruction of ground station, determined thus and the situation of getting in touch of ground station, selected whether be broadcast to autonomous broadcasting from switching command.
Referring to Fig. 6, described step 22 also comprises following concrete steps:
When mobile radio station receives non-sleep instruction, under non-sleep pattern, work, in non-sleep time slot, send message, get in the present embodiment 30 times/minute by the non-sleep speed of mobile radio station appointment.
When mobile radio station was pressed sleep instruction transmission appointed positions message in the sleep time slot that ground station distributes, mobile radio station translational speed or change in location may surpass threshold value, will no longer be suitable for lower sleep speed broadcast location message.Therefore, in this case, mobile radio station will adopt the mode broadcast location message that independently increases progressively to improve the transmission frequency of position message voluntarily, with the situation that is applicable to that mobile radio station is current.If mobile radio station can't find suitable time slot in translational speed or change in location above under the situation of threshold value, must send warning signal, to remind the user.
For this reason, referring to Fig. 7, step 23 further comprises following concrete steps:
Step 231, mobile radio station send the appointed positions message by sleep speed in the sleep time slot that ground station distributes, and monitor self speed and change in location;
Step 232, mobile radio station judge whether himself speed and change in location exceed threshold value, are execution in step 233 then, otherwise execution in step 231;
Step 233, the autonomous incremental manner broadcasting of employing default form position message send message, execution in step 234;
Step 234, mobile radio station judge whether that self speed and change in location get back to below the threshold value, or, whether receive instruction, more than one of two conditions set up then execution in step 235, otherwise execution in step 236;
Step 235, mobile radio station judge whether that self speed and change in location get back to below the threshold value, are then to carry out 231, otherwise execution in step 2;
Step 236, mobile radio station judge whether to find suitable time slot for sending default form position message, are execution in step 237 then, otherwise execution in step 233;
Step 237, mobile radio station are alarmed to the user, at random direct execution in step 3 after a period of time.
In other words, mobile radio station receives when instruction sleep, works under sleep pattern, sends message by the sleep speed of mobile radio station appointment in the sleep time slot, gets in the present embodiment 1 time/minute.When sleep is worked down, in a single day mobile radio station finds whether self speed and change in location exceed threshold value, promptly begin to adopt autonomous incremental manner to send default form position message and send message, in the present embodiment, for the speed with 30 times/minute independently sends the default location message, if it is during this period, following or receive and the sleep instruction of ground station then switch to sleep pattern if self speed of mobile radio station and change in location are got back to threshold value; If mobile radio station is received the non-sleep instruction of ground station, then switch to non-sleep pattern work; If mobile radio station can't find suitable time slot during this period, the information that then gives a warning behind one section random time, enters the utonomous working pattern, carries out autonomous network insertion with the compounding period incremental subscription.
When the utonomous working pattern,, realize that network switches if mobile radio station receives ground station's instruction then readjusts back the instruction works pattern.When mobile radio station enters the utonomous working pattern, will earlier carry out autonomous network insertion with compounding period incremental subscription more flexibly, then the mode with more stable cycle reservation independently sends the position message.During this period, if can't find suitable time slot method, mobile radio station carries out early warning.For realizing above-mentioned functions, referring to Fig. 8, step 3 comprises following concrete steps:
In the present embodiment, the 3rd setting-up time is set at 60 seconds.When mobile radio station was worked under autonomous mode, with the autonomous access network of the mode of compounding period incremental subscription, and the mode of preengaging with the cycle in 60 backs independently sent the default location message.In the present embodiment, under the working method of cycle reservation, mobile radio station independently sends the default location message according to 30 times/minute speed.
When mobile radio station is worked under autonomous mode, if receive ground station instruction then readjust back the instruction works pattern, if find to find suitable time slot to send message, the information that then gives a warning, and entering autonomous mode once more after a period of time at random.
In the present embodiment, mobile radio station switches under autonomic monitoring and two kinds of patterns of instruction supervision flexibly according to concrete situation, also guarantee the extensibility of airport scene monitoring system, be particularly useful for the airport scene monitoring system that mobile radio stations such as aircraft, vehicle frequently add or withdraw from.
Mobile radio station can pass through self-organizing network broadcast location message under the situation of not relating to ground station, realize autonomic monitoring, reduced dependence to ground station, promptly, under the situation that ground station breaks down, each mobile radio station still can obtain the positional information of all the other mobile radio stations, has guaranteed each mobile radio station safety, normal running.When mobile radio station was successfully got in touch with ground station, mobile radio station had reached raising time interval resource utilance again according to ground station's instruction broadcast location message, stablizes the mobile radio station message and sends at interval, increases the effect of power system capacity.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (8)
1, a kind of airport scene monitoring method, wherein, ground station distributes time slot to comprise the steps:
Step a, ground station's monitor channel, execution in step b;
Step b, ground station send various application datas and detect mobile station information simultaneously;
The mobile radio station state is judged according to detection information by step c, ground station, is that mobile radio station distributes time slot according to the mobile radio station state, upgrades ground station's data, execution in step b;
Described step c is specially:
C1, ground station judge whether to monitor the time slot that certain mobile radio station independently sending default form position message or before distributing to it and are about to use, and are execution in step c2 then, otherwise, execution in step c3;
C2, ground station have judged whether that non-sleep time slot can supply to distribute, and are then to distribute non-sleep time slot to give mobile radio station, send non-sleep and instruct to mobile radio station, and execution in step b, otherwise, execution in step b;
It is static that c3, ground station judge whether to detect certain mobile radio station, is execution in step c4 then, otherwise, execution in step c5;
C4, ground station have judged whether that the sleep time slot can be then to distribute the sleep time slot to give mobile radio station, and send the sleep instruction for distributing, execution in step b, otherwise, execution in step b;
C5, ground station judge whether receive various non-network insertion request data package this moment, are then to upgrade the time slot prefiguration, and deal with data is upgraded application data, upgrades mobile site information, execution in step b, otherwise, execution in step c6;
C6, ground station judge whether receive certain mobile radio station network insertion request data package this moment, are execution in step c7 then, otherwise, execution in step b;
C7, ground station have judged whether that non-sleep time interval resource can be then to distribute non-sleep time slot to give this mobile radio station and send to insert to reply execution in step b for distributing; Otherwise, execution in step b.
2, airport scene monitoring method according to claim 1 is characterized in that, also comprises:
Step 1, mobile radio station are stood earthward and are sent after the network insertion request, if receive that ground station instructs then execution in step 2, otherwise execution in step 3;
The instruction broadcast location message that step 2, mobile radio station adopt the instruction broadcasting method to send by ground station, mobile radio station judge whether to receive once more ground station's instruction, are execution in step 2 then, otherwise execution in step 3;
Step 3, mobile radio station adopt autonomous broadcasting method independently to select time slot broadcast location message, judge whether to receive ground station instruction, are execution in step 2 then, otherwise execution in step 3.
3, airport scene monitoring method according to claim 2 is characterized in that, described step 1 is specially:
Step 11, mobile station initialization, the record initialization begins to monitor network channel constantly;
Step 12, mobile radio station are stood earthward and are sent the network insertion request, and record request constantly;
Step 13, mobile radio station receive ground station's instruction, and execution in step 2 when receiving, otherwise are carved at that time accumulated time constantly when further judging from initialization, when accumulated time during, execution in step 12 less than first setting-up time, otherwise, execution in step 3.
4, airport scene monitoring method according to claim 3 is characterized in that, in the described step 13, and when described accumulated time during less than first setting-up time, execution in step 12 behind one second setting-up time of delaying time.
5, airport scene monitoring method according to claim 2 is characterized in that, described step 2 is specially:
Step 21, mobile radio station judge whether the instruction that receives is non-sleep instruction, are execution in step 22 then, otherwise, execution in step 23;
Step 22, mobile radio station send the appointed positions message by non-sleep instruction in the non-sleep time slot that ground station distributes, judge whether to receive once more ground station's instruction, are execution in step 2 then, otherwise, execution in step 3;
Step 23, mobile radio station send the appointed positions message by the sleep instruction in the sleep time slot that ground station distributes, judge whether to receive once more ground station's instruction, are execution in step 2 then, otherwise, execution in step 3.
6, airport scene monitoring method according to claim 5 is characterized in that, described step 22 is specially:
Step 221, mobile radio station send the appointed positions message by non-sleep speed in the non-sleep time slot that ground station distributes;
Step 222, mobile radio station judge whether to receive once more ground station instruction, are execution in step 2 then, otherwise, execution in step 3.
7, airport scene monitoring method according to claim 5 is characterized in that, described step 23 is specially:
Step 231, mobile radio station send the appointed positions message by sleep speed in the sleep time slot that ground station distributes, and monitor self speed and change in location;
Step 232, mobile radio station judge whether himself speed and change in location exceed threshold value, are execution in step 233 then, otherwise execution in step 231;
Step 233, the autonomous incremental manner broadcasting of employing default form position message, execution in step 234;
Step 234, mobile radio station judge whether that self speed and change in location get back to below the threshold value, or, whether receive instruction, more than one of two conditions set up then execution in step 235, otherwise execution in step 236;
Step 235, mobile radio station judge whether that self speed and change in location get back to below the threshold value, are then to carry out 231, otherwise execution in step 2;
Step 236, mobile radio station judge whether to find suitable time slot for sending default form position message, are execution in step 237 then, otherwise execution in step 233;
Step 237, mobile radio station are alarmed to the user, at random direct execution in step 3 after a period of time.
8, airport scene monitoring method according to claim 2 is characterized in that, described step 3 is specially:
Step 31, mobile radio station write down autonomous access network constantly with the autonomous access network of the mode of compounding period incremental subscription;
Step 32, mobile radio station send default form position message in the mode of compounding period incremental subscription;
Step 33, mobile radio station judge whether to receive the instruction of ground station, are execution in step 2 then, otherwise execution in step 34;
Step 34, whether can't find suitable time slot; It is execution in step 39 then; Otherwise execution in step 35;
Step 35, mobile radio station are judged the accumulated time that is carved into when autonomous at that time constantly from initial, and execution in step 36 when accumulated time reaches the 3rd setting-up time, otherwise execution in step 32;
Step 36, mobile radio station send default form position message, execution in step 37 with the cycle appointment mode;
Step 37, mobile radio station judge whether to receive the instruction of ground station, are execution in step 2 then, otherwise execution in step 38;
Step 38, whether can't find suitable time slot; It is execution in step 39 then; Otherwise execution in step 36;
Step 39, mobile radio station are alarmed to the user, at random execution in step 31 after a period of time.
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| CNB2006101381114A CN100448326C (en) | 2006-11-09 | 2006-11-09 | Airport scene monitoring method |
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| CNB2006101381114A CN100448326C (en) | 2006-11-09 | 2006-11-09 | Airport scene monitoring method |
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Families Citing this family (3)
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| CN101582201B (en) * | 2009-06-23 | 2011-05-11 | 南京航空航天大学 | Airport surface movement control system based on discrete event monitor and method thereof |
| CN106559494B (en) * | 2016-12-02 | 2019-08-13 | 中国电子科技集团公司第三十八研究所 | A kind of scene surveillance radar redundancy control system based on distributed network |
| CN106604316B (en) * | 2017-01-03 | 2021-04-02 | 张毅昆 | Method, device and system for positioning fault of wireless access equipment |
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