CN110861684A - Tramcar level crossing early warning system and method - Google Patents
Tramcar level crossing early warning system and method Download PDFInfo
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- CN110861684A CN110861684A CN201911183693.1A CN201911183693A CN110861684A CN 110861684 A CN110861684 A CN 110861684A CN 201911183693 A CN201911183693 A CN 201911183693A CN 110861684 A CN110861684 A CN 110861684A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
- B61L29/30—Supervision, e.g. monitoring arrangements
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Abstract
The embodiment of the invention provides a tramcar level crossing early warning system and a method, wherein the system comprises the following components: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected. Through the communication connection between the positioning base station and the vehicle-mounted label equipment, the position information of the tramcar can be determined, and the control of the warning lamp is realized through the crossing controller according to the position information of the tramcar so as to warn pedestrians or vehicles going through the level crossing. The tramcar level crossing early warning system provided by the embodiment of the invention is realized intelligently directly through the vehicle-mounted label equipment and the crossing controller without manual participation, so that the labor cost can be saved. And the processing process has no time delay, so that the running efficiency of the tramcar can be improved.
Description
Technical Field
The invention relates to the technical field of urban rail transit safety, in particular to a tramcar level crossing early warning system and method.
Background
At present, with the rapid development of urban rail transit systems, tramcars attract people's attention due to the advantages of low cost, short construction period and larger transportation capacity than public transit systems.
The running track of the tramcar is in a semi-closed state, and an open level crossing is arranged on the running track, namely, the running track and a road cross each other on the same plane. The traffic environment of the level crossing is relatively complex, and most people can take care of the level crossing manually at present so as to ensure the safe operation of the tramcar.
In the above-mentioned scheme, because there is artifical the participation, will lead to the human cost to increase by a wide margin, will lead to tram's operating efficiency moreover high-efficient inadequately.
Disclosure of Invention
To overcome the above problems or at least partially solve the above problems, embodiments of the present invention provide a tram level crossing warning system and method.
In a first aspect, an embodiment of the present invention provides a tramcar level crossing warning system, including: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected;
the positioning base station is arranged along the running track of the tramcar within a preset range around a level crossing, the vehicle-mounted label equipment is used for sending a positioning request to the positioning base station, receiving response information which is returned by the positioning base station and corresponds to the positioning request, and determining the position information of the tramcar based on the sending time of the positioning request, the receiving time of the response information and the response information;
the warning light sets up in level crossing department, the crossing controller is used for based on tram's positional information, control the warning light is opened.
Preferably, the response information includes a number of the positioning base station, and the vehicle-mounted tag device stores a corresponding relationship between the number of the positioning base station and absolute position information of the positioning base station; correspondingly, the vehicle-mounted label device is specifically configured to:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station and the corresponding relation contained in the response information;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
Preferably, the vehicle-mounted label device is specifically configured to:
simultaneously sending the positioning request on each available channel between the vehicle-mounted label equipment and the positioning base station, and respectively receiving response information returned by the positioning base station on each available channel;
respectively determining distance information between the positioning base station and the tramcar corresponding to each receiving moment based on the time difference between the receiving moment and the transmitting moment of the response information on each available channel;
calculating an average value of all distance information, and determining the position information of the tramcar based on the average value and the absolute position information of the positioning base station.
Preferably, the tram level crossing early warning system further includes: the protective railings are arranged on two sides of the running track of the tramcar at the level crossing;
the crossing controller is connected with the protective barrier;
the crossing controller is also used for putting down the protective barrier after the warning lamp is turned on.
Preferably, the tram level crossing early warning system further includes: the obstacle detection device is arranged at the level crossing;
the crossing controller is connected with the barrier detection equipment;
the crossing controller is further used for controlling the obstacle detection equipment to detect obstacle information at the level crossing, and when the obstacle detection equipment detects the obstacle information at the level crossing, the obstacle information is sent to the vehicle-mounted label equipment.
In a second aspect, an embodiment of the present invention provides a tramcar level crossing early warning method, including:
acquiring the sending time of sending a positioning request to a positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information;
determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar;
the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing.
Preferably, the response information includes a number of the positioning base station; accordingly, the number of the first and second electrodes,
the determining the position information of the tramcar based on the sending time, the receiving time and the response information specifically includes:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station contained in the response information and a corresponding relationship between the number of the positioning base station and the absolute position information of the positioning base station;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
In a third aspect, an embodiment of the present invention provides a tramcar level crossing early warning method, including:
receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar;
the method comprises the steps of controlling obstacle detection equipment to detect obstacle information at a level crossing, and sending the obstacle information to vehicle-mounted label equipment when the obstacle detection equipment detects the obstacle information at the level crossing.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the tram road crossing early warning method according to the second or third aspect when executing the program.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the tramway crossing early warning method according to the second or third aspect.
The embodiment of the invention provides a tramcar level crossing early warning system and a method, wherein the system comprises: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected. Through the communication connection between the positioning base station and the vehicle-mounted label equipment, the position information of the tramcar can be determined, and the control of the warning lamp is realized through the crossing controller according to the position information of the tramcar so as to warn pedestrians or vehicles going through the level crossing. The tramcar level crossing early warning system provided by the embodiment of the invention is realized intelligently directly through the vehicle-mounted label equipment and the crossing controller without manual participation, so that the labor cost can be saved. And the processing process has no time delay, so that the running efficiency of the tramcar can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tramcar level crossing warning system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a relative positional relationship between components in the tramcar level crossing warning system according to the embodiment of the present invention;
fig. 3 is a schematic view of a complete structure of a tramcar level crossing warning system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a complete structure of a relative positional relationship between components in the tramcar level crossing warning system according to the embodiment of the present invention;
fig. 5 is a schematic flow chart of a tramcar level crossing early warning method according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a tramcar level crossing early warning method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the invention provides a tramcar level crossing early warning system, which comprises: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected;
the positioning base station is arranged along the running track of the tramcar within a preset range around a level crossing, the vehicle-mounted label equipment is used for sending a positioning request to the positioning base station, receiving response information which is returned by the positioning base station and corresponds to the positioning request, and determining the position information of the tramcar based on the sending time, the receiving time and the response information;
the warning light sets up in level crossing department, the crossing controller is used for based on tram's positional information, control the warning light is opened.
Specifically, the tramcar level crossing early warning system provided in the embodiment of the invention comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp. The positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing, the preset range can be set according to requirements, for example, the positioning base station can be composed of the running tracks of the tramcars with preset lengths at two sides of the level crossing, and the preset lengths can be 50m, 100m, 200 m and the like. The number of the positioning base stations can be set according to the size of the preset range, so that the coverage range of all the positioning base stations is ensured to be the preset range. For example, a preset number of positioning base stations may be arranged along the operation track within a preset range at a certain interval, the interval may be set as required, and the preset number may specifically be 3, 4, 5, and the like.
The vehicle-mounted label equipment is arranged in the tramcar and can be specifically installed in a train cab. The vehicle-mounted label equipment can be provided with a label equipment number playing a role in identification, and the label equipment number is consistent with the train number. The vehicle-mounted label equipment is in communication connection with the positioning base station, can be in communication connection through an LORA wireless technology, and can be specifically realized through a 433 spread spectrum technology. The crossing controller and the warning lamp are arranged at the level crossing, and the crossing controller can be specifically arranged on one side of the running track of the tramcar at the level crossing and only needs one. The warning light can be arranged at the intersection, and particularly can be arranged on one side of a running track of the tramcar at the intersection. The vehicle-mounted label equipment is in communication connection with the crossing controller.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a tramcar level crossing warning system provided in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a relative positional relationship between components in the tramcar level crossing warning system provided in the embodiment of the present invention. Fig. 1 and 2 each show only a case where 3 positioning base stations 1 are provided in the system. When the tramcar runs to the preset range, the vehicle-mounted label device 2 is in communication connection with the nearby positioning base station 1 in real time, the vehicle-mounted label device 2 sends a positioning request to the communication-connected positioning base station 1, the positioning base station 1 immediately returns response information corresponding to the positioning request to the communication-connected vehicle-mounted label device 2 after receiving the positioning request, and the response information comprises relevant information of the positioning base station 1, such as the number of the positioning base station 1, absolute position information of the positioning base station 1 and the like. The vehicle-mounted label device 2 determines the position information of the tramcar according to the sending time of the positioning request, the response information corresponding to the positioning request and the receiving time of the response information. For example, the on-board tag device 2 may determine distance information between the positioning base station 1 and the tramcar 3 from the transmission time and the reception time, and then determine position information of the tramcar 3 from the distance information and absolute distance information of the positioning base station 1. The position information of the tramcar in the embodiment of the present invention may be the precise position information of the tramcar, or may be the area where the tramcar is located, and this is not particularly limited in the embodiment of the present invention.
After the position information of the tramcar is determined, the vehicle-mounted label equipment 2 sends the position information of the tramcar to the crossing controller 4, and the crossing controller 4 controls the warning lamp to be turned on according to the position information of the tramcar. Namely, the crossing controller 4 determines the distance between the tramcar and the level crossing according to the position information of the tramcar, and controls the warning lamp 5 to be turned on when the distance between the tramcar and the level crossing is less than or equal to the preset distance so as to warn pedestrians or vehicles going through the level crossing. The warning light 5 may be a three-color signal light.
The embodiment of the invention provides a tramcar level crossing early warning system, which comprises: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected. Through the communication connection between the positioning base station and the vehicle-mounted label equipment, the position information of the tramcar can be determined, and the control of the warning lamp is realized through the crossing controller according to the position information of the tramcar so as to warn pedestrians or vehicles going through the level crossing. The tramcar level crossing early warning system provided by the embodiment of the invention is realized intelligently directly through the vehicle-mounted label equipment and the crossing controller without manual participation, so that the labor cost can be saved. And the processing process has no time delay, so that the running efficiency of the tramcar can be improved.
On the basis of the above embodiment, in the tramcar level crossing warning system provided in the embodiment of the present invention, the response information includes the number of the positioning base station, and the vehicle-mounted tag device stores the correspondence between the number of the positioning base station and the absolute position information of the positioning base station; correspondingly, the vehicle-mounted label device is specifically configured to:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station and the corresponding relation contained in the response information;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
Specifically, in the embodiment of the present invention, when the tram is driven to the preset range, the vehicle-mounted tag device, when determining the position information of the tram, first calculates the time difference between the reception time of the response information and the transmission time of the positioning request, where the reception time is t2 and the transmission time is t1, the time difference is t2-t1, and determines the distance information s between the positioning base station and the tram according to the electromagnetic wave transmission speed v as: s-1/2 v (t2-t 1). Due to the existence of a plurality of positioning base stations, the vehicle-mounted labeling device needs to determine distance information between each positioning base station and the tram.
In the embodiment of the invention, the response information which is returned by the positioning base station and corresponds to the positioning request comprises the number of the positioning base station, and correspondingly, the corresponding relation between the number of the positioning base station and the absolute position information of the positioning base station is stored in the vehicle-mounted label equipment. The station label equipment can determine the absolute position information of the positioning base station according to the number of the positioning base station and the corresponding relation. It should be noted that, instead of storing the correspondence between the number of the positioning base station and the absolute position information of the positioning base station, the vehicle-mounted tag device may directly store the absolute position information of the positioning base station in the vehicle-mounted tag device.
Finally, according to all the determined distance information and the absolute position information of the positioning base station, the position information of the tramcar is determined by combining a triangulation method; the position information of the tram may also be determined and the smallest distance information selected from all the determined distance information. This is because the minimum distance information indicates that the tramcar is closest to the positioning base station and the tramcar is within the coverage area of the positioning base station, and in this case, the absolute position information of the positioning base station can be used as the position information of the tramcar, and the operation can be simplified.
In the embodiment of the invention, the position information of the tramcar can be determined through the vehicle-mounted label equipment, so that the tramcar can be positioned, and a theoretical basis is provided for the control operation of a subsequent crossing controller.
On the basis of the above embodiment, in the tramcar level crossing warning system provided in the embodiment of the present invention, the vehicle-mounted label device is specifically configured to:
simultaneously sending the positioning request on each available channel between the vehicle-mounted label equipment and the positioning base station, and respectively receiving response information returned by the positioning base station on each available channel;
respectively determining distance information between the positioning base station and the tramcar corresponding to each receiving moment based on the time difference between the receiving moment and the transmitting moment of the response information on each available channel;
calculating an average value of all distance information, and determining the position information of the tramcar based on the average value and the absolute position information of the positioning base station.
Specifically, when the positioning base station is in communication connection with the vehicle-mounted tag device, there may be a multipath effect, that is, after electromagnetic wave signals are propagated through different paths, the arrival time of each component field at the receiving end is different, and the component fields are mutually superposed according to their respective phases to cause interference, so that the original signals are distorted or errors are generated. Therefore, in the embodiment of the present invention, the positioning requests are simultaneously transmitted on the available channels between the vehicle-mounted tag device and the positioning base station, that is, the positioning requests are repeatedly transmitted through the available channels at the same time, and the response information returned by the positioning base station on the available channels is respectively received. Therefore, the distance information between the positioning base station and the tramcar corresponding to the reception time of the response information on each available channel is determined according to the time difference between the reception time and the transmission time of the response information on each available channel. And calculating the average value of all the distance information, and determining the position information of the tramcar based on the average value of all the distance information and the absolute position information of the positioning base station.
In the embodiment of the invention, the positioning request is simultaneously sent on each available channel between the vehicle-mounted label equipment and the positioning base station, the plurality of distance information is determined based on the receiving time of the response information on each available channel, the average value of the plurality of distance information is taken to determine the position information of the tramcar, the multipath effect possibly occurring in communication connection is overcome, and the finally obtained position information of the tramcar is more accurate.
On the basis of the above embodiment, the tramcar level crossing warning system and the tramcar level crossing warning system provided in the embodiment of the present invention further include: the protective railings are arranged on two sides of the running track of the tramcar at the level crossing;
the crossing controller is connected with the protective barrier;
the crossing controller is also used for putting down the protective barrier after the warning lamp is turned on.
Specifically, in the embodiment of the invention, the protective railings are arranged on two sides of the running track of the tramcar at the level crossing, the protective railings are connected with the crossing controller, and after the crossing controller controls the warning lamp to be turned on, the protective railings are controlled to be put down so as to prevent pedestrians and vehicles from entering the level crossing.
On the basis of the above embodiment, the tramcar level crossing warning system provided in the embodiment of the present invention further includes: the obstacle detection device is arranged at the level crossing;
the crossing controller is connected with the barrier detection equipment;
the crossing controller is further used for controlling the obstacle detection equipment to detect the obstacle information at the level crossing after the warning lamp is turned on, and sending the obstacle information to the vehicle-mounted label equipment when the obstacle detection equipment detects the obstacle information at the level crossing.
Specifically, in the embodiment of the present invention, an obstacle detection device is introduced, and the obstacle detection device is disposed at the level crossing and is used for detecting obstacle information at the level crossing. And the barrier detection equipment is controlled by the crossing controller. The crossing controller controls the barrier detection equipment to detect the barrier information at the crossing, and when the barrier detection equipment detects the barrier information at the crossing, the barrier information is sent to the vehicle-mounted label equipment, so that drivers of tramcars can know the state information of the crossing in real time, and the tramcars can be guaranteed to pass through the crossing safely. The obstacle information may specifically be a pedestrian and/or a vehicle or the like. The obstacle detection device may specifically be a device with a camera and having an obstacle recognition function. The vehicle-mounted label device can be connected with a vehicle-mounted display to display barrier information, and can also be connected with a train control system to send a deceleration or stop instruction to the train control system to avoid the barrier. When the obstacle detection equipment does not detect the obstacle information at the level crossing, a driving instruction is sent to the vehicle-mounted label equipment, so that drivers of the tramcars can know the state information of the level crossing in real time, and the vehicle-mounted label equipment can send the driving instruction to the tramcar control system, so that the tramcars are controlled by the train control system to pass through the level crossing.
In the embodiment of the invention, the obstacle detection equipment is arranged to monitor the obstacle information, so that the tramcar can be ensured to safely pass through the level crossing.
It should be noted that, in the embodiment of the present invention, the crossing controller may specifically control the obstacle detection device to detect the obstacle information at the level crossing after the warning light is turned on or after the guard rail is put down.
As shown in fig. 3 and 4, fig. 3 is a schematic view of a complete structure of the tramcar level crossing warning system provided in the embodiment of the present invention, and fig. 4 is a schematic view of a complete structure of a relative position relationship of each component in the tramcar level crossing warning system provided in the embodiment of the present invention. Both fig. 3 and fig. 4 show only the case where 3 positioning base stations 1 are provided in the system. The positioning base station 1 is in communication connection with the vehicle-mounted label equipment 2, and the vehicle-mounted label equipment 2, the road junction controller 4 and the warning lamp 5 are sequentially connected. The crossing controller 4 is also connected with the obstacle detection device 6 and the protective barrier 7. The obstacle detection device 6 is an information input end of the crossing controller 4, and the warning lamp 5 and the protective barrier 7 are information output ends of the crossing controller 4.
As shown in fig. 5, on the basis of the above embodiment, an embodiment of the present invention provides a tramcar level crossing early warning method, including:
s51, acquiring the sending time of sending the positioning request to the positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information;
s52, determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar;
the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing.
Specifically, the execution main body of the tramcar level crossing early warning method provided in the embodiment of the present invention is the vehicle-mounted label device, the operation flows of the steps correspond to the functions of the vehicle-mounted label devices in the system embodiments one to one, and the implementation effects are also consistent.
On the basis of the above embodiment, in the tramcar level crossing warning method provided in the embodiment of the present invention, the response information includes the number of the positioning base station; accordingly, the number of the first and second electrodes,
the determining the position information of the tramcar based on the sending time, the receiving time and the response information specifically includes:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station contained in the response information and a corresponding relationship between the number of the positioning base station and the absolute position information of the positioning base station;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
As shown in fig. 6, on the basis of the above embodiment, an embodiment of the present invention provides a tramcar level crossing early warning method, including:
s61, receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar;
and S62, controlling the obstacle detection equipment to detect the obstacle information at the level crossing, and sending the obstacle information to the vehicle-mounted label equipment when the obstacle detection equipment detects the obstacle information at the level crossing.
Specifically, the execution main body of the tramcar level crossing early warning method provided in the embodiment of the present invention is a crossing controller, the operation flows of the steps correspond to the functions of the crossing controllers in the system embodiments one to one, and the implementation effects are also consistent.
As shown in fig. 7, on the basis of the above embodiment, an embodiment of the present invention provides an electronic device, including: a processor (processor)701, a memory (memory)702, a communication Interface (Communications Interface)703, and a communication bus 704; wherein the content of the first and second substances,
the processor 701, the memory 702 and the communication interface 703 complete communication with each other through the communication bus 704. The memory 702 stores program instructions executable by the processor 701, and the processor 701 is configured to call the program instructions in the memory 702 to perform the method provided by the above-mentioned method embodiments, for example, including: acquiring the sending time of sending a positioning request to a positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information; determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar; the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing. Alternatively, it comprises: receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar; after the warning lamp is turned on, controlling obstacle detection equipment to detect obstacle information at a level crossing, and when the obstacle detection equipment detects the obstacle information at the level crossing, sending the obstacle information to vehicle-mounted label equipment.
It should be noted that, when being specifically implemented, the electronic device in this embodiment may be a server, a PC, or another device, as long as the structure includes the processor 701, the communication interface 703, the memory 702, and the communication bus 704 shown in fig. 7, where the processor 701, the communication interface 703, and the memory 702 complete mutual communication through the communication bus 704, and the processor 701 may call a logic instruction in the memory 702 to execute the above method. The embodiment does not limit the specific implementation form of the electronic device.
The logic instructions in memory 702 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone article of manufacture. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Further, embodiments of the present invention disclose a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, the computer is capable of performing the methods provided by the above-mentioned method embodiments, for example, comprising: acquiring the sending time of sending a positioning request to a positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information; determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar; the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing. Alternatively, it comprises: receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar; after the warning lamp is turned on, controlling obstacle detection equipment to detect obstacle information at a level crossing, and when the obstacle detection equipment detects the obstacle information at the level crossing, sending the obstacle information to vehicle-mounted label equipment.
On the basis of the foregoing embodiments, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented to perform the transmission method provided by the foregoing embodiments when executed by a processor, and the method includes: acquiring the sending time of sending a positioning request to a positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information; determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar; the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing. Alternatively, it comprises: receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar; after the warning lamp is turned on, controlling obstacle detection equipment to detect obstacle information at a level crossing, and when the obstacle detection equipment detects the obstacle information at the level crossing, sending the obstacle information to vehicle-mounted label equipment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a tram level crossing early warning system which characterized in that includes: the system comprises a positioning base station, vehicle-mounted label equipment, a crossing controller and a warning lamp; the positioning base station is in communication connection with the vehicle-mounted label equipment, and the vehicle-mounted label equipment, the crossing controller and the warning lamp are sequentially connected;
the positioning base station is arranged along the running track of the tramcar within a preset range around a level crossing, the vehicle-mounted label equipment is used for sending a positioning request to the positioning base station, receiving response information which is returned by the positioning base station and corresponds to the positioning request, and determining the position information of the tramcar based on the sending time of the positioning request, the receiving time of the response information and the response information;
the warning light sets up in level crossing department, the crossing controller is used for based on tram's positional information, control the warning light is opened.
2. The tramcar level crossing early warning system of claim 1, wherein the response message includes a number of the positioning base station, and the vehicle-mounted label device stores a corresponding relationship between the number of the positioning base station and absolute position information of the positioning base station; correspondingly, the vehicle-mounted label device is specifically configured to:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station and the corresponding relation contained in the response information;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
3. The tram level crossing warning system of claim 2, wherein the on-board labeling device is specifically configured to:
simultaneously sending the positioning request on each available channel between the vehicle-mounted label equipment and the positioning base station, and respectively receiving response information returned by the positioning base station on each available channel;
respectively determining distance information between the positioning base station and the tramcar corresponding to each receiving moment based on the time difference between the receiving moment and the transmitting moment of the response information on each available channel;
calculating an average value of all distance information, and determining the position information of the tramcar based on the average value and the absolute position information of the positioning base station.
4. The tram road junction warning system of any one of claims 1-3, further comprising: the protective railings are arranged on two sides of the running track of the tramcar at the level crossing;
the crossing controller is connected with the protective barrier;
the crossing controller is also used for putting down the protective barrier after the warning lamp is turned on.
5. The tram road junction warning system of any one of claims 1-3, further comprising: the obstacle detection device is arranged at the level crossing;
the crossing controller is connected with the barrier detection equipment;
the crossing controller is further used for controlling the obstacle detection equipment to detect obstacle information at the level crossing, and when the obstacle detection equipment detects the obstacle information at the level crossing, the obstacle information is sent to the vehicle-mounted label equipment.
6. A tram level crossing gate early warning method is characterized by comprising the following steps:
acquiring the sending time of sending a positioning request to a positioning base station, the received response information which is returned by the positioning base station and corresponds to the positioning request and the returning time of the response information;
determining the position information of the tramcar based on the sending time, the receiving time and the response information, and sending the position information of the tramcar to a crossing controller so that the crossing controller controls a warning lamp to be turned on based on the position information of the tramcar;
the positioning base station is arranged along the running track of the tramcar within a preset range around the level crossing.
7. The tram level crossing entrance early warning method according to claim 6, wherein the response message includes the number of the positioning base station; accordingly, the number of the first and second electrodes,
the determining the position information of the tramcar based on the sending time, the receiving time and the response information specifically includes:
determining distance information between the positioning base station and the tramcar based on a time difference between the receiving time and the transmitting time, and determining absolute position information of the positioning base station based on the number of the positioning base station contained in the response information and a corresponding relationship between the number of the positioning base station and the absolute position information of the positioning base station;
determining the position information of the tramcar based on the distance information and the absolute position information of the positioning base station.
8. A tram level crossing gate early warning method is characterized by comprising the following steps:
receiving the position information of the tramcar, and controlling the warning lamp to be turned on based on the position information of the tramcar;
the method comprises the steps of controlling obstacle detection equipment to detect obstacle information at a level crossing, and sending the obstacle information to vehicle-mounted label equipment when the obstacle detection equipment detects the obstacle information at the level crossing.
9. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor when executing the program realizes the steps of the tram road crossing early warning method according to any one of claims 6-8.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the tram road crossing early warning method according to any one of claims 6-8.
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| CN201911183693.1A CN110861684A (en) | 2019-11-27 | 2019-11-27 | Tramcar level crossing early warning system and method |
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| CN201911183693.1A CN110861684A (en) | 2019-11-27 | 2019-11-27 | Tramcar level crossing early warning system and method |
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