CN105197069A - Method for detecting train beacon misreading - Google Patents
Method for detecting train beacon misreading Download PDFInfo
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- CN105197069A CN105197069A CN201510595006.2A CN201510595006A CN105197069A CN 105197069 A CN105197069 A CN 105197069A CN 201510595006 A CN201510595006 A CN 201510595006A CN 105197069 A CN105197069 A CN 105197069A
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Abstract
The invention discloses a method for detecting train beacon misreading. The method comprises the following steps of acquiring a most probable position and a least probable position of a beacon antenna; adding a beacon which corresponds to a beacon theoretical position into a beacon queue if the range scanned by the beacon antenna in the most probable position in the last period includes the beacon theoretical position; detecting whether the beacon antenna in the last period reads the beacon or not, and deleting the beacon from the beacon queue when the beacon antenna in the last period reads the beacon; judging whether the range scanned by the beacon antenna in the least probable position in the last period includes the beacon theoretical position or not, and judging whether the beacon is in the beacon queue or not; if yes, judging whether the beacon is in the beacon queue or not again after a period of setting time is delayed, and prompting beacon misreading if the beacon is still in the beacon queue. According to the method for detecting the train beacon misreading, the beacon misreading caused by the facts that the beacons on the ground are misarranged in the arrangement process or the beacon antenna is in failure can be detected.
Description
Patent application of the present invention is the divisional application of invention and created name " the beacon skip method of inspection of train ", and the applying date of original application is on February 26th, 2014, and application number is 2014100667481.
Technical field
The present invention relates to urban track traffic control system field, particularly relate to a kind of beacon skip method of inspection of train.
Background technology
In modern railway transportation control system, beacon is the key equipment realizing train-ground communication, is widely used in the location of urban railway transit train.Owing to there being the beacon theoretical position with all beacons of train communication on ground in track database, therefore when train cross one correspond to beacon theoretical position beacon and by beacon antenna scanning read it time, just the position of the theoretical value determination train in track database can be called, the travel distance obtained in conjunction with vehicle-wheel speed sensor can obtain train and be in position beyond beacon position, can obtain the direct of travel of train when two beacons read continuously by the beacon antenna of train.Although the mode positioned by beacon decreases uncertainty than the mode positioned separately through vehicle-wheel speed sensor, but still there are some problems, ground beacon position cloth mistake or beacon antenna when arranging break down, all the skip of beacon will be caused, when train has crossed beacon actual on ground, this beacon is not also read by train, then this beacon can not be read again.
In sum, a kind of method of inspection can knowing beacon skip is badly in need of at present, to solve the problem.
Summary of the invention
The object of this invention is to provide a kind of method detecting train beacon skip, the ground beacon beacon skip that position cloth mistake or beacon antenna break down and cause when arranging can be detected, thus the fault rearranging beacon position or solve beacon antenna of adopting an effective measure.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of beacon skip method of inspection of train, the method comprises the steps: that the method comprises the steps:
Step B1: obtain the most probable position of described beacon antenna and minimum possible position;
Step B2: if comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in most probable position last week, then enter step B3 after the beacon corresponding to described beacon theoretical position being added beacon queue, otherwise enter step B4;
Step B3: whether the described beacon antenna detecting the described upper cycle reads described beacon, deletes described beacon from described beacon queue when reading;
Step B4: judge whether comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in minimum possible position last week, and if described beacon is in described beacon queue, then and enter step B5, otherwise return step B1;
Step B5: again judge whether described beacon is in described beacon queue after postponing one section of setting-up time, if described beacon is still in described beacon queue, then points out beacon skip and returns step B1; Otherwise directly return step B1;
When performing step B1 first, described maximum possible initial position and minimum may initial position as the most probable position of described beacon antenna and minimum possible position; When again performing step B1, or be added most probable position as the described beacon antenna of renewal and minimum possible position by most probable position and minimum possible position and by the train travel distance of vehicle-wheel speed sensor; Or the distance by beacon theoretical position, most probable position and minimum possible position and the train travel distance by vehicle-wheel speed sensor draw the most probable position of the described beacon antenna of renewal and minimum possible position.
As preferably, train the same beacon of process, be two continuous or discontinuous different cycles to the judgement whether existed corresponding to the beacon of beacon theoretical position of the described most probable position of beacon antenna and minimum possible position place and whether judgement corresponding to the beacon of beacon theoretical position existed before the judgement at the described minimum possible position place to beacon antenna to the described most probable position place of beacon antenna.
As preferably, also needed to determine whether train locates before step B1, when train through N number of beacon and by beacon antenna read all beacons be train locate, N is positive integer.
As preferably, behind train location, also comprise the initialization step that described beacon queue is emptied.
After adopting technique scheme, the present invention compared with prior art has following outstanding advantages:
The present invention is undertaken scanning by beacon antenna and judges whether reading beacon corresponding to beacon theoretical position place in train traveling process, marked by a beacon queue, if correspond to beacon theoretical position place beacon antenna do not read actual beacon, namely the place that beacon ought to exist beacon is not scanned by beacon antenna, then will mark this not by the beacon read in beacon queue, to show in actual conditions may this beacon position cloth wrong, or beacon antenna breaks down, by technical scheme of the present invention, the situation of beacon skip can be detected in time in the process that train is advanced, thus take fault handling measure further.
The present invention upgrades the possible position of beacon antenna further combined with the correlation of beacon theoretical position and the travel distance of vehicle-wheel speed sensor, improve the conformability of train real-world operation position and beacon theoretical position, thus determine the position that ought to occur beacon in train driving process more accurately, improve the particularity that beacon skip detects.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the beacon skip method of inspection of the train of the embodiment of the present invention one;
Fig. 2 is the beacon antenna most probable position of the embodiment of the present invention one and the graph of a relation of beacon position;
Fig. 3 is the schematic flow sheet of the beacon skip method of inspection of the train of the embodiment of the present invention two.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Embodiment one
Fig. 1 shows the beacon skip method of inspection of the train of the embodiment of the present invention one, and the method specifically comprises the steps:
Steps A 1: the most probable position that beacon antenna is provided periodically by vehicle-wheel speed sensor;
Steps A 2: if comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in most probable position last week, then enter steps A 3 after the beacon corresponding to described beacon theoretical position being added beacon queue, otherwise enter steps A 4;
Steps A 3: whether the described beacon antenna detecting the described upper cycle reads described beacon, deletes described beacon from described beacon queue when reading;
Steps A 4: if described beacon is still in described beacon queue in next cycle, then judge whether to be in described beacon queue after postponing one section of setting-up time again, if described beacon is still in described beacon queue, then points out beacon skip and return steps A 1; Otherwise directly return steps A 1.
Fig. 2 shows the beacon antenna most probable position of the embodiment of the present invention one and the relation of beacon position, the first half represents the front of cycle beacon position beacon antenna most probable position (beacon antenna being placed in most probable position place in Fig. 2), the latter half represents the rear of this cycle beacon position at beacon antenna most probable position, thus, upper cycle beacon antenna most probable position has passed through this beacon.
Specifically, composition graphs 1 and Fig. 2 are described, and in train driving process, first need to determine whether train locates, when train through N number of beacon and by beacon antenna read all beacons be train locate, N is positive integer, and in the present embodiment in order to improve the accuracy of location, N gets 2, certainly, N also only can get 1, namely when train reads this new timestamp through a beacon by beacon antenna, can determine that train is located.The embodiment of the present invention is carried out marker beacon by a beacon queue and whether is read, and behind train location, also comprises the initialization step emptied described beacon queue.
After initialization step completes, enter steps A 1, the most probable position of beacon antenna is provided by vehicle-wheel speed sensor, and each cycle upgrades once, most probable position is obtained according to the train travel distance that vehicle-wheel speed sensor provides, or the beacon theoretical position in the train travel distance provided according to vehicle-wheel speed sensor and track database obtains most probable position, adopt the latter's method can improve the conformability of train real-world operation position and beacon theoretical position, thus determine the position that ought to occur beacon in train driving process more accurately, improve the particularity that beacon skip detects, concrete, beacon theoretical position adds that the travel distance of train from corresponding to the beacon of this beacon theoretical position is as most probable position.
Steps A 1 enters steps A 2 after terminating, be in the inswept scope of the beacon antenna of most probable position comprise beacon theoretical position if last week is interim, show that most probable position process should occur beacon, then the beacon corresponding to described beacon theoretical position is added beacon queue, described beacon is read in the scope interscan that beacon antenna continues beacon antenna can scan, and enters steps A 3 afterwards; Otherwise show not arrive the place that ought to occur beacon, enter steps A 4.
Steps A 3, whether the described beacon antenna detecting the described upper cycle reads described beacon, is deleted by the described beacon joined in beacon queue, enter steps A 4 afterwards when reading from described beacon queue; If described beacon do not read by the described beacon antenna in upper cycle, then directly entered steps A 4.
Steps A 4, in next cycle, judge that described beacon is in described beacon queue, if described beacon is still in described beacon queue, again judge whether to be in described beacon queue after then postponing one section of setting-up time, if described beacon is still in described beacon queue, then points out beacon skip and return steps A 1; Otherwise directly return steps A 1.When train receives the prompting of beacon skip, also can take emergency braking, restart the beacon skip carrying out the embodiment of the present invention after processing fault again and detect.
Embodiment two
Fig. 3 shows the beacon skip method of inspection of the train of the embodiment of the present invention two, and the method specifically comprises the steps:
Step B1: obtain the most probable position of described beacon antenna and minimum possible position;
Step B2: if comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in most probable position last week, then enter step B3 after the beacon corresponding to described beacon theoretical position being added beacon queue, otherwise enter step B4;
Step B3: whether the described beacon antenna detecting the described upper cycle reads described beacon, deletes described beacon from described beacon queue when reading;
Step B4: judge whether comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in minimum possible position last week, and if described beacon is in described beacon queue, then and enter step B5, otherwise return step B1;
Step B5: again judge whether described beacon is in described beacon queue after postponing one section of setting-up time, if described beacon is still in described beacon queue, then points out beacon skip and returns step B1; Otherwise directly return step B1.
The situation that the beacon antenna most probable position of the embodiment of the present invention two is a kind of with the embodiment shown in Fig. 2 with the relation of beacon position is consistent, and in like manner the relation of minimum possible position and beacon position is also like this, does not thus repeat them here.
Specifically, in train driving process, first need to determine whether train locates, when train through N number of beacon and by beacon antenna read all beacons be train locate, N is positive integer, in the present embodiment in order to improve the accuracy of location, N gets 2, and certainly, N also only can get 1, namely when train reads this new timestamp through a beacon by beacon antenna, can determine that train is located.The embodiment of the present invention is carried out marker beacon by a beacon queue and whether is read, and behind train location, also comprises the initialization step emptied described beacon queue.
After initialization step completes, enter step B1, obtain the most probable position of described beacon antenna and minimum possible position, and each cycle upgrades once; Realized by following manner: mode one, the most probable position of beacon antenna and minimum possible position is obtained according to the train travel distance that vehicle-wheel speed sensor provides, in the present embodiment, when entering step B1 first, the most probable position that the most probable position of beacon antenna and minimum possible position and wheel speed sensor provide and minimum possible position are as initial value; Mode two, beacon theoretical position in the train travel distance provided according to vehicle-wheel speed sensor and track database obtains the most probable position of beacon antenna and minimum possible position, concrete, beacon theoretical position adds that the maximum travel distance of train from corresponding to the beacon of this beacon theoretical position, minimum travel distance are respectively as most probable position, minimum possible position, and maximum travel distance, minimum travel distance are determined according to the error component of vehicle-wheel speed sensor; Mode three, was added most probable position as the described beacon antenna of renewal and minimum possible position using the most probable position in a upper cycle and minimum possible position and by the train travel distance of vehicle-wheel speed sensor.In the present embodiment, mode two or mode three is adopted when again entering step B2, the conformability of train real-world operation position and beacon theoretical position can be improved, thus determine the position that ought to occur beacon in train driving process more accurately, improve the particularity that beacon skip detects.
In step B2, be in the inswept scope of the beacon antenna of most probable position comprise beacon theoretical position if last week is interim, show that most probable position process should occur beacon, then the beacon corresponding to described beacon theoretical position is added beacon queue, beacon antenna continues scanning and reads beacon in the scope that can scan, and enters step B3 afterwards; Otherwise show not arrive the place that ought to occur beacon, enter step B4.
Step B3, whether the described beacon antenna detecting the described upper cycle reads described beacon, is deleted by the described beacon joined in beacon queue, enter step B4 afterwards when reading from described beacon queue; If described beacon do not read by the described beacon antenna in upper cycle, then directly entered step B4.
Step B4, judge whether comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in minimum possible position last week, if and described beacon is in described beacon queue, then show this beacon likely by skip or due to device transmission postpone cause going back undelivered, thus one setting-up time is set and opens timing, enter step B5, otherwise return step B1;
Step B5, judges after postponing described setting-up time whether described beacon is in described beacon queue again, if described beacon is still in described beacon queue, then show that time-out, beacon determine skip, prompting beacon skip also returns step B1; Otherwise directly return step B1.Certainly, after train receives the prompting of beacon skip, also can take emergency braking, restart the beacon skip carrying out the present embodiment after processing fault again and detect.
In the present embodiment, for train process same beacon for, the judgement whether existed corresponding to the beacon of beacon theoretical position described most probable position and the minimum possible position place of beacon antenna is two continuous or discontinuous different cycles, and whether judgement corresponding to the beacon of beacon theoretical position is existed before the judgement at the described minimum possible position place to beacon antenna to the described most probable position place of beacon antenna, such as, interim in this week, the beacon whether described most probable position place of beacon antenna exists corresponding to beacon theoretical position is judged, and in next cycle, the beacon whether described minimum possible position place of beacon antenna exists corresponding to beacon theoretical position is judged, and the beacon corresponding to beacon theoretical position that the described most probable position that this beacon is last cycle beacon antenna judges.
It should be noted that, the most probable position of the embodiment of the present invention and minimum possible position upgraded once in each cycle, do not represent always and have theoretic beacon to exist at most probable position and minimum possible position place, thus need to judge in conjunction with the beacon theoretical position in track database, whether have the existence of beacon at most probable position and minimum possible position place.
In embodiments of the present invention, each step, all from the angle in this cycle, is carried out judgement by the action of this cycle to the upper cycle and is reached a conclusion, further the action in statement lower cycle, thus there is continuity periodically, be not merely only embodied in the action in one-period.
Although the present invention with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.
Claims (4)
1. detect a method for train beacon skip, it is characterized in that, the method comprises the steps:
Step B1: obtain the most probable position of described beacon antenna and minimum possible position;
Step B2: if comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in most probable position last week, then enter step B3 after the beacon corresponding to described beacon theoretical position being added beacon queue, otherwise enter step B4;
Step B3: whether the described beacon antenna detecting the described upper cycle reads described beacon, deletes described beacon from described beacon queue when reading;
Step B4: judge whether comprise beacon theoretical position in the inswept scope of the interim beacon antenna being in minimum possible position last week, and if described beacon is in described beacon queue, then and enter step B5, otherwise return step B1;
Step B5: again judge whether described beacon is in described beacon queue after postponing one section of setting-up time, if described beacon is still in described beacon queue, then points out beacon skip and returns step B1; Otherwise directly return step B1;
When performing step B1 first, described maximum possible initial position and minimum may initial position as the most probable position of described beacon antenna and minimum possible position; When again performing step B1, or be added most probable position as the described beacon antenna of renewal and minimum possible position by most probable position and minimum possible position and by the train travel distance of vehicle-wheel speed sensor; Or the distance by beacon theoretical position, most probable position and minimum possible position and the train travel distance by vehicle-wheel speed sensor draw the most probable position of the described beacon antenna of renewal and minimum possible position.
2. a kind of method detecting train beacon skip as claimed in claim 1, it is characterized in that: train the same beacon of process, be two continuous or discontinuous different cycles to the judgement whether existed corresponding to the beacon of beacon theoretical position of the described most probable position of beacon antenna and minimum possible position place and whether judgement corresponding to the beacon of beacon theoretical position existed before the judgement at the described minimum possible position place to beacon antenna to the described most probable position place of beacon antenna.
3. a kind of method detecting train beacon skip as claimed in claim 1, is characterized in that: also needed to determine whether train locates before step B1, when train through N number of beacon and by beacon antenna read all beacons be train locate, N is positive integer.
4. a kind of method detecting train beacon skip as claimed in claim 3, is characterized in that: behind train location, also comprise the initialization step emptied described beacon queue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595006.2A CN105197069B (en) | 2014-02-26 | 2014-02-26 | Method for detecting train beacon misreading |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066748.1A CN103770809B (en) | 2014-02-26 | 2014-02-26 | The beacon skip method of inspection of train |
| CN201510595006.2A CN105197069B (en) | 2014-02-26 | 2014-02-26 | Method for detecting train beacon misreading |
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| CN201410066748.1A Division CN103770809B (en) | 2014-02-26 | 2014-02-26 | The beacon skip method of inspection of train |
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| CN105197069A true CN105197069A (en) | 2015-12-30 |
| CN105197069B CN105197069B (en) | 2017-01-18 |
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| CN201510595006.2A Active CN105197069B (en) | 2014-02-26 | 2014-02-26 | Method for detecting train beacon misreading |
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| CN107884747A (en) * | 2016-12-27 | 2018-04-06 | 比亚迪股份有限公司 | The alignment system and method for monorail train |
| CN111098886A (en) * | 2019-11-21 | 2020-05-05 | 浙江大学 | Device and method for verifying on-line interrogator of vehicle-mounted transponder for parking |
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| CN104554350B (en) * | 2014-11-20 | 2017-01-04 | 上海富欣智能交通控制有限公司 | Beacon detection method in train position fixing process |
| JP6589055B2 (en) * | 2016-05-12 | 2019-10-09 | 株式会社京三製作所 | On-vehicle device and train occupation range calculation method |
| JP6801995B2 (en) * | 2016-07-26 | 2020-12-16 | 株式会社日立製作所 | Train automatic stop control device and railway vehicle equipped with it |
| CN109739247A (en) * | 2019-04-02 | 2019-05-10 | 常州市盈能电气有限公司 | Rail mounted crusing robot localization method |
| CN110062403A (en) * | 2019-04-28 | 2019-07-26 | 新华三技术有限公司 | Message processing method, device, equipment and storage medium |
| CN111611219A (en) * | 2020-06-02 | 2020-09-01 | 卡斯柯信号(成都)有限公司 | Intelligent analysis system and method for tramcar logs |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105197069B (en) | 2017-01-18 |
| CN103770809A (en) | 2014-05-07 |
| CN103770809B (en) | 2015-12-30 |
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