CN208026874U - Utilize the railway positioning system of repeater - Google Patents
Utilize the railway positioning system of repeater Download PDFInfo
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- CN208026874U CN208026874U CN201820498602.8U CN201820498602U CN208026874U CN 208026874 U CN208026874 U CN 208026874U CN 201820498602 U CN201820498602 U CN 201820498602U CN 208026874 U CN208026874 U CN 208026874U
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Abstract
The utility model provides a kind of railway positioning system using repeater, including a repeater, and the repeater includes a near-end machine and a plurality of remote terminations, and a plurality of remote terminations are arranged along the track of train；One first optical port, a data processing centre and a computing module are equipped in the near-end machine, it is equipped with one second optical port, an antenna, a data processor and a positioning chip in each remote termination, the data processing centre connect with computing module and the first optical port respectively, first optical port is connected to the second optical port, and the data processor is connect with the second optical port, positioning chip and antenna respectively.The utility model realizes the positioning of train using the location information of remote termination and via the train information of its forwarding.
Description
Technical field
The utility model is related to a kind of positioning system more particularly to a kind of railway positioning systems using repeater.
Background technology
Now train positioning frequently with there are two ways to：Train carries locating signal receiver, or along railway
Stationary monitoring point is set up, positioning is calculated by receiving the signal that monitoring point is sent out.The former (tunnel due to position and landform
Deng) it cannot be guaranteed that train can receive positioning signal at any time, it can not accomplish to position in real time；The latter is huge due to railway range
Reason needs the monitoring point quantity being arranged big, cost it is of high cost.
Invention content
The technical problems to be solved in the utility model is to provide a kind of railway positioning system using repeater, utilize
The location information of remote termination and realize the positioning of train via the train information of its forwarding.
What the problem of the utility model, was realized in：
A kind of railway positioning system using repeater, including a repeater, the repeater is including a near-end machine and again
Several remote terminations, a plurality of remote terminations are arranged along the track of train；One first optical port, a data are equipped in the near-end machine
Processing center and a computing module are equipped with one second optical port, an antenna, a data processor and certain in each remote termination
Position chip, the data processing centre connect with computing module and the first optical port respectively, and first optical port is connected to the second light
Mouthful, the data processor is connect with the second optical port, positioning chip and antenna respectively.
Further, the model VK1612Z2M3L of the positioning chip.
Further, the repeater is optical fiber repeater, between the near-end machine and remote termination by the first optical port and
Second optical port carries out optical fiber connection.
The utility model has the advantage of：The GPS signal that repeater is generated using positioning chip as synchronous standard, because
This utility model is the method positioned using the GPS signal, in addition to increase obtain GPS signal needed for positioning chip and
It calculates and hardly increases other costs except the computing module needed for positioning, not only saved cost but also improved the utilization of existing resource
Rate.The arrangement of repeater and networking require that train energy whole process is communicated, therefore can be met in real time to position using repeater
The requirement of positioning.
Description of the drawings
The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of structural schematic diagram of railway positioning system using repeater of the utility model.
Fig. 2 is a kind of execution flow chart of railway localization method using repeater of the utility model.
Fig. 3 is the structural schematic diagram in embodiment one and embodiment two in the utility model.
Specific implementation mode
To make the utility model be clearer and more comprehensible, now with a preferred embodiment, and attached drawing is coordinated to be described in detail below.
As shown in Figure 1, a kind of railway positioning system using repeater of the utility model, including a repeater, it is described
Repeater is optical fiber repeater, and optical fiber repeater includes near-end machine and remote termination, wherein near-end machine is set to base station one end, far
Terminal arranges that the utility model is the location information using remote termination and the train information via its forwarding come real along train rail
The positioning of existing train.
The repeater includes a near-end machine and a plurality of remote terminations, track cloth of a plurality of remote terminations along train
It sets；It is (soft involved by computing module equipped with one first optical port, a data processing centre and a computing module in the near-end machine
Part part is all the prior art), one second optical port, an antenna, a data processor and certain are equipped in each remote termination
Position chip, the model VK1612Z2M3L of the positioning chip, the positioning chip is for obtaining remote termination self-position letter
Breath, and it is sent to data processor；
The data processing centre connect with computing module and the first optical port respectively, and first optical port is connected to the second light
Mouthful, the data processor is connect with the second optical port, positioning chip and antenna respectively, and the antenna is by being wirelessly connected to row
Vehicle；Remote termination receives train information by antenna, by leading between the first optical port and the second optical port between remote termination and near-end machine
Cross fiber optic communication (connection)；
The remote termination obtains the location information of itself remote termination in installation by positioning chip, is transferred to data processing
Device, the signal that remote termination transmits every time later all include location information, and train sends train information to correspondence in the process of moving
The data processor of remote termination, then location information and train information are sent to near-end machine by data processor, it is connect by near-end machine
Be transferred to after receipts near-end machine data processing centre handled after, then by near-end machine computing module according to known parameters, two
Temporal information included in the corresponding location information of remote termination and train information calculates train and is sending the train information moment
Position.Used location information is the GPS signal of the positioning chip generation of remote termination in position fixing process, and temporal information is row
Vehicle is inserted into the time of the delivery time in train information.
A kind of railway localization method using repeater of the utility model, the railway localization method need to provide above-mentioned
The course of work of a kind of railway positioning system using repeater, this positioning system is：Near-end machine is received via different remote terminations
Signal forward, from train is tied by signal from the time difference sent when reaching two remote terminations and difference in signal strength verification
Fruit.The railway localization method specifically comprises the following steps：
(1) as shown in Fig. 2, the process for calculating the position of train by the time difference is as follows：
Step A1, each remote termination obtains the location information of itself remote termination in installation by positioning chip, is sent to
The data processor of corresponding remote termination, the signal that remote termination is sent every time later all include location information；
Step A2, the described train sends train information in the process of moving, and different remote terminations are received through respective antenna should
Train information, and it is transmitted to respective data processor；
Step A3, the data processor of different remote terminations is by the location information of itself remote termination and the train information received
It is transmitted to near-end machine through respective second optical port, the first optical port of the near-end machine receives data (the i.e. distal end that remote termination is sent
The location information and train information (temporal information and other information that include train) of machine), and it is transmitted to data processing centre；
Step A4, the described data processing centre receives the data of remote termination transmission, and remote termination is separated from data
After the temporal information of location information and train, and choose the temporal information hair of the corresponding location information of wherein two remote terminations and train
It is sent to the computing module；
Step A5, the described computing module calculates train information according to the temporal information of known parameters and train and reaches two far
The time difference of terminal, further according to time difference, known parameters, the temporal information of train and the corresponding location information of two remote terminations, meter
Train is calculated in the position for sending the train information moment, to achieve the purpose that position train.
The computational methods are specially：
1) since signal velocity, the distance D1 of one remote termination 1 to near-end machine and another remote termination 2 arrive near-end machine
Distance D2 be known, the signal for calculating two remote terminations reaches the used time of near-end machine；
2) at the time of sending out information due to train, the information that train is sent via remote termination 1 at the time of reach near-end machine and
The information that train is sent via remote termination 2 is all known at the time of reaching near-end machine, so according to the signal of two remote terminations
The used time for reaching near-end machine calculates time difference and row that train reaches near-end machine via the time signal that two remote terminations forward
Vehicle to remote termination 1 distance and train to the distance of remote termination 2 difference；
3) since the distance between two remote terminations are known, so acquiring train to two distal ends according to the difference of distance
The distance of machine；
4) since the location information of two remote terminations is known, so can be with according to the distance of train to two remote terminations
Train is acquired in the position at transmission time information moment.
Embodiment one：
As shown in figure 3, the known parameters include：Signal velocity V, one remote termination 1 arrive the distance D1 of near-end machine,
Another remote termination 2 arrives the distance D2 of near-end machine；The distance between two remote terminations S, a at the time of train sends out information, train warp
A+t1 at the time of reaching near-end machine by the information that remote termination 1 is sent, train reach near-end machine via the information that remote termination 2 is sent
Moment a+t2, the location information of two remote terminations；
Near-end machine is arrived according to signal velocity V, the distance D1 of one remote termination 1 to near-end machine and another remote termination 2
Distance D2, calculate remote termination 1 transmission information reach near-end machine used time T1=D1/V and remote termination 2 send information to
Up to the used time T2=D2/V of near-end machine；
The used time T1 of near-end machine and remote is reached further according to the information that moment a, moment a+t1, moment a+t2, remote termination 1 are sent
The information that terminal 1 is sent reaches the used time T2 of near-end machine, and the information for calculating train transmission reaches used time and the train of remote termination 1
The information of transmission reaches the time difference t=of the used time of remote termination 2 | and (a+t1-T1)-(a+t2-T2) |=| (t1-T1)-(t2-T2)
|, so train to remote termination 1 distance and train to the distance of remote termination 2 poor s=t*V；
Assuming that t1<T2, then train is from 1 distance s1=S/2-s of remote termination, and train is from 2 distance s2=S/2+ of remote termination
S, and because the location information of two remote terminations is all known, therefore according to the location information of s1, s2 and two remote terminations
Obtain train in the position at a moment.
(2) as shown in Fig. 2, the process for calculating the position of train by difference in signal strength is as follows：
Step B1, each remote termination obtains the location information of itself remote termination in installation by positioning chip, is sent to
The data processor of corresponding remote termination, the information that remote termination is sent every time later all include location information；
Step B2, the described train sends train information in the process of moving, includes temporal information in the train information of transmission.
Different remote terminations receive the train information through respective antenna, and are transmitted to respective data processor；
Step B3, the data processor of different remote terminations is by the location information of itself remote termination and the train information received
It is transmitted to near-end machine through respective second optical port, the first optical port of the near-end machine receives the data of remote termination transmission and is transmitted to
Data processing centre；
Step B4, the described data processing centre receives the data of remote termination transmission, and remote termination is separated from data
The temporal information of location information and train, at the same calculate train information reach near-end machine when signal strength after, and choose wherein
(result calculated is that signal is strong for the corresponding location information of two remote terminations, the temporal information of train and signal strength information
Degree information) it is sent to the computing module；
Step B5, the described computing module calculates train information according to known parameters and the signal strength information and reaches two far
The difference in signal strength of terminal is believed further according to time difference, known parameters, the temporal information of train and the corresponding position of two remote terminations
Breath calculates train in the position for sending the train information moment, to achieve the purpose that position train.
The computational methods are specially：
1) due to the degree of signal intensity attenuation with the variation of distance, one remote termination 1 to near-end machine distance D1 and
The distance D2 of another remote termination 2 to near-end machine is known, and signal when calculating the signal arrival near-end machine of two remote terminations declines
Subtract degree；
At the time of 2) sending out train information due to train, when the information arrival near-end machine that train is sent via remote termination 1
Signal strength when the information arrival near-end machine that signal strength and train are sent via remote termination 2 is all known, so according to
The difference of signal strength when the signal of two remote terminations reaches near-end machine calculates letter when train signal reaches two remote terminations
The difference of number intensity, so find out train to remote termination 1 distance and train to the distance of remote termination 2 difference；
3) since the distance between two remote terminations are known, so acquiring train to two distal ends according to the difference of distance
The distance of machine；
4) since the location information of two remote terminations is known, so can be with according to the distance of train to two remote terminations
Train is acquired in the position for sending the train information moment.
The principle of this computational methods is similar with according to the computational methods of time difference, but since signal strength is easily by a variety of
The influence of factor, thus the result that calculates of this mode is it is possible that bigger deviation, is only suitable for, as compensatory device, using
In the location information that verification is calculated according to the time difference.
Embodiment two：
As shown in figure 3, the known parameters include：Signal intensity attenuation degree is with the variation M of distance, one remote termination 1
To the distance D1 of near-end machine, another remote termination 2 arrives the distance D2 of near-end machine；The distance between two remote terminations S, train send out letter
A at the time of breath, the location information of two remote terminations；
According to signal intensity attenuation degree with the variation M of distance, one remote termination 1 to the distance D1 of near-end machine and another
Remote termination 2 arrives the distance D2 of near-end machine, calculates the signal strength loss m1=when information arrival near-end machine of the transmission of remote termination 1
The information that M (D1) and remote termination 2 are sent reaches the signal strength loss m2=M (D2) when near-end machine；
Signal strength a1 when train reaches near-end machine via the information that remote termination 1 is sent is calculated again, and train is via distal end
The information that machine 2 is sent reaches signal strength a2 when near-end machine, is sent according to signal strength a1, signal strength a2, remote termination 1
The information that signal strength loss m1 and remote termination 2 when information reaches near-end machine are sent reaches signal strength loss when near-end machine
M2, calculate train transmission information reach remote termination 1 when signal strength and train send information reach remote termination 2 when
The poor ms=of signal strength | (m1+a2)-(m2+a2) |, so train to remote termination 1 distance and train to remote termination 2 away from
From poor s=M-1(ms)；
Assuming that t1<T2, then train is from 1 distance s1=S/2-s of remote termination, and train is from 2 distance s2=S/2+ of remote termination
S, and because the location information of two remote terminations is all known, therefore obtained according to the location information of s1, s2 and two remote terminations
Go out train in the position at a moment.
Although the foregoing describe specific embodiment of the present utility model, those familiar with the art answers
Working as understanding, we are merely exemplary described specific embodiment, rather than for the limit to the scope of the utility model
Fixed, those skilled in the art modification and variation equivalent made by the spirit according to the utility model all should
Cover in the scope of the claimed protection of the utility model.
Claims (3)
1. a kind of railway positioning system using repeater, it is characterised in that：Including a repeater, the repeater includes one close
Terminal and a plurality of remote terminations, a plurality of remote terminations are arranged along the track of train；One first light is equipped in the near-end machine
Mouthful, a data processing centre and a computing module, one second optical port, an antenna are equipped in each remote termination, at a data
Reason device and a positioning chip, the data processing centre connect with computing module and the first optical port respectively, and first optical port connects
It is connected to the second optical port, the data processor is connect with the second optical port, positioning chip and antenna respectively.
2. a kind of railway positioning system using repeater as described in claim 1, it is characterised in that：The positioning chip
Model VK1612Z2M3L.
3. a kind of railway positioning system using repeater as described in claim 1, it is characterised in that：The repeater is light
Fine repeater carries out optical fiber connection between the near-end machine and remote termination by the first optical port and the second optical port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820498602.8U CN208026874U (en) | 2018-04-10 | 2018-04-10 | Utilize the railway positioning system of repeater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820498602.8U CN208026874U (en) | 2018-04-10 | 2018-04-10 | Utilize the railway positioning system of repeater |
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| Publication Number | Publication Date |
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| CN208026874U true CN208026874U (en) | 2018-10-30 |
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ID=63910373
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363087A (en) * | 2018-04-10 | 2018-08-03 | 厦门信同信息技术有限公司 | Utilize the railway positioning system and its localization method of repeater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363087A (en) * | 2018-04-10 | 2018-08-03 | 厦门信同信息技术有限公司 | Utilize the railway positioning system and its localization method of repeater |
| CN108363087B (en) * | 2018-04-10 | 2023-09-26 | 厦门信同信息技术有限公司 | Railway positioning system using repeater and positioning method thereof |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200716 Address after: Building 6, sanchuangyuan design and development center, No. 3001, south section of Century Avenue, Luoshan street, Jinjiang City, Quanzhou City, Fujian Province Patentee after: Fujian Xintong Information Technology Co., Ltd Address before: 361000 S505 room, South Tower, Weiye building, Xiamen torch hi tech Zone, Xiamen, Fujian Patentee before: XIAMEN SANTONE INFORMATION TECHNOLOGY Co.,Ltd. |
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