CN115830884A - Blind person-oriented secondary street crossing transfer auxiliary method for homonymous station - Google Patents
Blind person-oriented secondary street crossing transfer auxiliary method for homonymous station Download PDFInfo
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- CN115830884A CN115830884A CN202211472393.7A CN202211472393A CN115830884A CN 115830884 A CN115830884 A CN 115830884A CN 202211472393 A CN202211472393 A CN 202211472393A CN 115830884 A CN115830884 A CN 115830884A
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Abstract
The invention discloses a blind-oriented secondary street crossing transfer auxiliary method for a homonymy station, which comprises the following steps of firstly, laying basic facilities to obtain secondary street crossing requirements of the blind; secondly, prompting the first street crossing square of the blind according to the advancing direction of the blind, calculating the street crossing time of the blind according to the walking speed, comparing the current signal timing scheme to determine whether to adjust the green light time length, and properly prolonging the residual green light time length; then, after the blind finishes the first street crossing, the phase of the signal is adjusted, and the blind preferentially carries out the second street crossing; and finally, after the blind finishes the second street crossing, the original signal timing scheme is recovered. The auxiliary method for the second street crossing transfer of the same-name station for the blind can acquire the second street crossing requirement of the blind, improve the safety of the second street crossing of the blind, improve the convenience of the transfer of the blind at the same-name station and the convenience of the blind in taking public transportation, and provide a safety foundation for the long-distance trip of the blind.
Description
Technical Field
The invention belongs to the field of pedestrian barrier-free street crossing assistance, and particularly relates to a blind person-oriented secondary street crossing transfer assistance method for a homonymous station.
Background
The method helps the blind to solve the traveling problem and is an important way for helping the blind to be integrated into the society. The blind cannot drive the transportation means by oneself due to the loss of vision, so public transportation becomes an important transportation mode for the blind to go out. If the blind people want to increase the travel distance or the destination is not a direct bus route, transfer is needed at the moment, the transfer of public traffic generally relates to the transfer of the same-name stations, the same-name stations of a plurality of routes are in different blocks of an intersection, and the blind people need to cross the street for the second time with high probability during transfer.
Most of the existing blind street crossing facilities only aim at one-time street crossing, and the existing common blind street crossing auxiliary facilities comprise a street crossing button, a buzzer prompter and a voice prompter.
In order to improve the convenience of the blind people when the blind people transfer the buses at the same stop, the method provides a method with assistance and priority for the blind people needing to cross the street for the second time when the blind people transfer the buses at the same stop. The method applies the concept of vehicle-road cooperation to the blind, so that information interaction is formed between the blind, road facilities and signal lamps, and the blind can take precedence by adjusting the timing of the signal lamps.
Disclosure of Invention
The technical problem is as follows: the invention provides a secondary street crossing transfer auxiliary method for a same-name bus stop for the blind, which is used for assisting the blind to cross the street by using concepts of vehicle-road cooperation and signal priority, has assistance and priority, realizes information interaction between the blind and a signal lamp, and formulates a secondary street crossing scheme by combining the walking state and the signal state of the blind, reduces the influence on the traffic flow while assisting the blind to cross the street, improves the safety and the convenience of the secondary street crossing of the blind, and realizes barrier-free secondary street crossing of the blind when the blind is transferred to the same-name bus stop.
The technical scheme is as follows: the invention aims to provide a secondary street crossing transfer auxiliary method for a homonymous station for blind people.
In order to achieve the aim, the invention provides a secondary street crossing transfer auxiliary method for a homonymous station for the blind, which is characterized by comprising the following steps of:
acquiring geometric data and a signal timing scheme of an intersection and the requirements of the blind on street crossing pace and secondary street crossing;
step two, prompting the first street crossing direction of the blind according to the advancing direction and the signal lamp state of the blind, calculating the street crossing time length of the blind according to the walking speed, and comparing the current signal timing scheme to determine whether to adjust the green lamp time length;
step three, comparing whether the current remaining green light duration is enough for the blind to cross the street or not, and if not, prolonging the current green light phase;
step four, adjusting the signal phase after the blind person finishes the first street crossing, and preferentially enabling the blind person to cross the street for the second time;
and step five, recovering the original signal timing scheme after the blind finishes the secondary street crossing.
Further, in the first step, the method for laying infrastructure and acquiring geometric data of the intersection and the pedestrian crossing speed and the demand of the blind comprises the following steps:
(1) A calculation module is arranged in a signal machine to obtain geometric data of the intersection and a timing scheme of the signal machine, wherein the geometric data of the intersection comprises the width L of each entrance lane of the intersection k K =1,2,3,4, and the signal timing scheme is G = [ G = 1 ，g 2 ，...，g n ]Where G is a matrix of 1 xn, G i I is more than or equal to 1 and less than or equal to n and g i Belongs to G, and the residual green light time length G of the current phase' i N is the total number of phases;
(2) The communication module is arranged on a smart phone of the blind person and used for acquiring the position and the advancing direction of the blind person and measuring the street crossing pace S of the blind person;
(3) Signal anchor points are buried under the punctiform blind road bricks in four blocks of the intersection for detecting the arrival of the blind persons at the intersection and sending inquiry signals to the blind persons;
(4) The blind person sends a secondary street crossing demand at the smart phone end.
Furthermore, in the second step, the method for prompting the blind to cross the street for the first time according to the traveling direction and the signal lamp state of the blind, calculating the street crossing time of the blind according to the walking speed, and determining whether to adjust the green light time length by comparing the current signal timing scheme comprises the following steps:
(1) Prompting the blind to cross the street for the first time according to the current green light direction; if the blind person's direction of travel is green, remind the blind person: "please cross the street along the current direction of travel", if the direction of travel of the blind is the red light, remind the blind: "please change the direction of travel to cross the street";
(2) The calculating module calculates the time T required by the blind to cross the street j And sending the result to a signal control module;
(3) Comparing the green light time of the current phase with the time required by the blind to cross the street if T j ＜g i Then no adjustment is required, if T j ＞g i Then, adjust to g i ＝T j 。
Further, in the third step, comparing whether the current remaining green light duration is enough for the blind to cross the street, if not, the method for prolonging the current green light phase is as follows:
(1) Comparison of remaining Green light duration g 'in the calculation Module' i And the time T for the blind to cross the street j If g' i ＜T j And then, prolonging the current green light phase, wherein the prolonging time T' is as follows:
T’＝T j -g’ i
(2) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the first time.
Furthermore, in the third step, the method for adjusting the signal phase after the blind person finishes the first street crossing and preferentially enabling the blind person to cross the street for the second time comprises the following steps:
(1) After the signal anchor point of the second block detects that the blind person arrives, namely the blind person finishes the first street crossing, the signal is sent to the signal control module;
(2) After the signal is received by the signal control module, the signal phase is immediately adjusted, so that the blind person can cross the street for the second time preferentially;
(3) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the second time.
Further, after the blind person finishes the second street crossing, the method for recovering the original signal timing scheme comprises the following steps:
(1) After the arrival of the blind people is detected at the signal anchor point of the diagonal block, the blind people are considered to finish crossing the street for the second time, and the signal is sent to the signal control module;
(2) And the signal control module adjusts the signal timing scheme to the original state, and the secondary street crossing assistance for the blind is finished.
Has the advantages that: compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
according to the scheme provided by the invention, after the positioning module detects that the blind person approaches, the positioning module sends a signal to the communication module, so that the blind person knows that the blind person arrives at the intersection, and after the blind person decides to carry out secondary street crossing, the communication module is used for sending information to the computing module, the computing module is used for making a secondary street crossing scheme according to the street zone where the blind person is and the current phase condition, and sending the signal phase adjusting scheme to the signal control module, and the signal control module is used for adjusting the signal phase according to the scheme sent by the computing module, so that the influence on the normal operation of the intersection is reduced while the blind person is helped to carry out secondary street crossing.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic view of a neighborhood;
fig. 3 is a schematic diagram of a signal anchor point.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, which is to be given the full breadth of the claims appended hereto.
The invention provides a secondary street crossing transfer auxiliary method for a homonymous station for blind people, and the invention is further explained by combining the attached drawings.
Referring to fig. 1, the invention provides a secondary street crossing transfer auxiliary method for a homonymous station for blind people, which comprises the following steps:
acquiring geometric data and a signal timing scheme of an intersection, and acquiring the pedestrian crossing speed and secondary street crossing requirements of the blind; the acquired geometric data of the intersection are shown in table 1, and the acquired intersection signal timing scheme is shown in table 2;
(1) A calculation module is arranged in the annunciator to acquire geometric data of the intersection and a timing scheme of the annunciator, wherein the geometric data of the intersection comprises the width L of each entrance lane of the intersection k K =1,2,3,4, and the signal timing scheme is G = [ G = 1 ，g 2 ，...，g n ]Where G is a matrix of 1 xn, G i I is more than or equal to 1 and less than or equal to n and g i Belongs to G, and the residual green light time length G of the current phase' i ；
(2) The communication module is arranged on a smart phone of the blind person and used for acquiring the position and the advancing direction of the blind person and measuring the street crossing pace S of the blind person to be 0.9m/S;
(3) Signal anchor points are buried under the punctiform blind road bricks in four blocks of the intersection for detecting the arrival of the blind persons at the intersection and sending inquiry signals to the blind persons;
(4) The blind person sends a secondary street crossing demand at the smart phone end.
TABLE 1 geometrical data of intersections and walking speed of blind persons
TABLE 2 Green light duration for each phase at intersection
Step two, prompting the first street crossing direction of the blind according to the advancing direction and the signal lamp state of the blind, calculating the street crossing time length of the blind according to the walking speed, and comparing the current signal timing scheme to determine whether to adjust the green lamp time length;
(1) Prompting the blind to cross the street for the first time according to the current green light direction; if the blind person's direction of travel is green, remind the blind person: "please cross the street along the current direction of travel", if the direction of travel of the blind is red light, remind the blind: "please change the direction of travel to cross the street";
(2) The calculating module calculates the time T required by the blind to cross the street j (j =1,2,3,4) and sending the result to the signal control module;
(3) Comparing the green light time of the current phase with the time required by the blind to cross the street if T j ＜g i Then no adjustment is required, if T j ＞g i Then, adjust to g i ＝T j 。
According to the calculation result, the time T for the blind to cross the street j =24.4s, round to 25s j ＜g i No adjustment of the signal timing scheme is required.
Step three, comparing whether the current remaining green light duration is enough for the blind to cross the street or not, and if not, prolonging the current green light phase;
(1) Comparison of remaining Green light duration g 'in the calculation Module' i And the time T for the blind to cross the street j If g' i ＜T j Then the current green light phase is extended by the time T
T’＝T j -g’ i
(2) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the first time.
Suppose that the current remaining green light duration g' i =20s, then g' i ＜T j The current green light phase needs to be extended for a time T' = T j -g’ i And 5-25, 5s, prolonging the current green light time by 5s to meet the requirement of the blind on crossing the street.
Step four, adjusting the signal phase after the blind person finishes the first street crossing, and preferentially enabling the blind person to cross the street for the second time;
(1) After the signal anchor point of the second block detects that the blind person arrives, namely the blind person finishes the first street crossing, the signal is sent to the signal control module;
(2) After the signal is received by the signal control module, the signal phase is immediately adjusted, so that the blind person can cross the street for the second time preferentially;
(3) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the second time. And step five, after the blind finishes the second street crossing, recovering the original signal timing scheme.
(1) After the arrival of the blind person is detected at the signal anchor point of the diagonal block, the blind person can be considered to finish crossing the street for the second time, and a signal is sent to the signal control module;
(2) And the signal control module adjusts the signal timing scheme to the original state, and the secondary street crossing assistance for the blind is finished.
Claims (6)
1. A blind-oriented secondary street crossing transfer auxiliary method for a homonymous station is characterized by comprising the following steps:
acquiring geometric data and a signal timing scheme of an intersection, and acquiring the pedestrian crossing speed and secondary street crossing requirements of the blind;
step two, prompting the first street crossing direction of the blind according to the advancing direction and the signal lamp state of the blind, calculating the street crossing time length of the blind according to the walking speed, and comparing the current signal timing scheme to determine whether to adjust the green lamp time length;
step three, comparing whether the current residual green light duration is enough for the blind to cross the street or not, and if not, prolonging the phase of the current green light;
step four, adjusting the signal phase after the blind person finishes the first street crossing, and preferentially enabling the blind person to cross the street for the second time;
and step five, after the blind finishes the second street crossing, recovering the original signal timing scheme.
2. The method for assisting the secondary street crossing transfer of the homonymous station for the blind as claimed in claim 1, wherein in the first step, the method for laying infrastructure and acquiring geometric data of an intersection and the pedestrian crossing pace and demand of the blind is as follows:
(1) A calculation module is arranged in the annunciator to acquire geometric data of the intersection and a timing scheme of the annunciator, wherein the geometric data of the intersection comprises the width L of each entrance lane of the intersection k K =1,2,3,4, and the signal timing scheme is G = [ G = 1 ,g 2 ,…,g n ]Where G is a matrix of 1 xn, G i I is more than or equal to 1 and less than or equal to n and g i E.g. G, the remaining green light duration G of the current phase' i N is the total number of phases;
(2) The communication module is arranged on a smart phone of the blind person and used for acquiring the position and the advancing direction of the blind person and measuring the street-crossing pace speed of the blind person to be S;
(3) Signal anchor points are buried under the punctiform blind road bricks of four blocks at the intersection for detecting the arrival of the blind at the intersection and sending inquiry signals to the blind;
(4) The blind person sends a secondary street crossing demand at the smart phone end.
3. The blind-oriented secondary street crossing transfer auxiliary method for the same-name website of the blind as claimed in claim 2, characterized in that: in the second step, the first street crossing direction of the blind is prompted according to the advancing direction and the signal lamp state of the blind, the street crossing time of the blind is calculated according to the walking speed, and the method for determining whether to adjust the green light time by comparing the current signal timing scheme is as follows:
(1) Prompting the blind to cross the street for the first time according to the current green light direction; if the blind person's direction of travel is green, remind the blind person: please cross the street along the current advancing direction, if the advancing direction of the blind is the red light, the blind is reminded: please change the direction of travel to cross the street;
(2) The calculating module calculates the time T required by the blind to cross the street j And sending the result to a signal control module;
(3) Comparing the green light time of the current phase with the time required by the blind to cross the street if T j ＜g i Then no adjustment is required, if T j ＞g i Then, adjust to g i ＝T j 。
4. The blind-oriented two-time street crossing and transfer assisting method for the same-name station of the blind as claimed in claim 3, wherein in the third step, whether the current remaining green light duration is enough for the blind to cross the street is compared, and if the current remaining green light duration is not enough for completing the street crossing, the method for prolonging the current green light phase is as follows:
(1) Comparing remaining green light durations g 'in the calculation module' i And the time T for the blind to cross the street j If g' i <T j If yes, the current green light phase is extended, and the extension time T' is:
T’＝T j -g’ i
(2) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the first time.
5. The blind-oriented synonym site secondary street transfer assisting method as claimed in claim 4, wherein in the third step, after the blind finishes the first street crossing, the signal phase is adjusted, and the method for enabling the blind to preferentially cross the street for the second time is as follows:
(1) After the arrival of the blind persons is detected at the signal anchor point of the second block, namely the blind persons finish crossing the street for the first time, the signal is sent to the signal control module;
(2) After the signal is received by the signal control module, the signal phase is immediately adjusted, so that the blind person can cross the street for the second time preferentially;
(3) And sending the signal of preferential street crossing to the communication module to prompt the blind to cross the street for the second time.
6. The blind-oriented two-time street crossing and transfer assisting method for the same-name website of the blind as claimed in claim 5, wherein the fourth step is that after the blind finishes the second street crossing, the method for recovering the original signal timing scheme is as follows:
(1) After the signal anchor point of the diagonal block detects that the blind person arrives, the blind person is considered to finish the second street crossing, and the signal is sent to the signal control module;
(2) And the signal control module adjusts the signal timing scheme to the original state, and the secondary street crossing assistance for the blind is finished.
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