CN112349107B - Navigation method based on ETC, navigation server and ETC background system - Google Patents
Navigation method based on ETC, navigation server and ETC background system Download PDFInfo
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3461—Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries
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- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
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Abstract
The present disclosure provides an ETC-based navigation method, including: the navigation server plans a navigation path for the target vehicle; the navigation server analyzes the driving direction of the target vehicle at each intersection on the navigation path in advance; the navigation server selects a first ETC vehicle identification device meeting a first preset condition at each intersection on the navigation path as a navigation prompt point of each intersection; and the navigation server sends the driving direction and the navigation prompt points of the intersections on the navigation path to an ETC background system. The ETC vehicle identification device is used for acquiring the passing characteristics of the vehicle in real time, and the navigation is realized by combining the navigation path planned by the navigation server to identify the vehicle information, so that the real-time navigation service can be provided for the vehicle without depending on a real-time positioning system, and the problems that the vehicle loses navigation guidance and the like under the condition that the positioning system fails are effectively solved.
Description
Technical Field
The present disclosure relates to the field of navigation technologies, and in particular, to an ETC-based navigation method, a navigation server, an ETC background system, and a computer-readable storage medium.
Background
At present, a navigation system of a vehicle needs to use a positioning system, such as a GPS or a Beidou satellite system or a wireless communication network. The vehicle navigation mainly comprises mobile terminal navigation and vehicle-mounted equipment navigation, for the mobile terminal navigation, the mobile terminal navigation causes larger power consumption of the mobile terminal, for the vehicle-mounted navigation, not all vehicles are provided with the vehicle-mounted navigation equipment, and the map updating of the vehicle-mounted navigation is not as convenient as the mobile terminal navigation. And the navigation scheme may cause the wireless communication network positioning and/or satellite positioning to fail for special geographic positions such as mountainous areas, tunnels and the like.
Therefore, it is highly desirable to provide a convenient and efficient vehicle navigation solution that does not rely on a positioning system.
Disclosure of Invention
The present disclosure provides an ETC-based navigation method, a navigation server, an ETC background system, and a computer-readable storage medium to at least solve the above-mentioned problems.
According to a first aspect of the embodiments of the present disclosure, there is provided an ETC-based navigation method, including:
the navigation server plans a navigation path for the target vehicle;
the navigation server analyzes the driving direction of the target vehicle at each intersection on the navigation path in advance;
the navigation server selects a first ETC vehicle identification device of which each intersection meets a first preset condition on the navigation path of the target vehicle as a navigation prompt point of each intersection;
the navigation server will the target vehicle is in the direction of travel and the navigation suggestion point of each intersection on the navigation route send ETC backstage system to make ETC backstage system according to the navigation suggestion point sets up the trigger for corresponding first ETC vehicle recognition device, and makes first ETC vehicle recognition device discerns the trigger activates during the target vehicle, then when the trigger is activated to the on-vehicle ETC electronic tags propelling movement of target vehicle apart from the distance of corresponding intersection and the direction of travel at this intersection, make on-vehicle electronic tags sends the navigation suggestion according to predetermineeing the rule.
In one embodiment, the navigation server selects a first ETC vehicle recognition device, which satisfies a first preset condition, at each intersection on the navigation path as a navigation prompt point of each intersection, and includes:
the navigation server sends the navigation path to an ETC background system so that the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path and returns the position information to the navigation server;
and the navigation server selects a first ETC vehicle identification device which accords with a first preset condition at each intersection on the navigation path from all ETC vehicle identification devices based on the position information as a navigation prompt point of each intersection.
In one embodiment, the navigation server selects, from the all ETC vehicle recognition devices, a first ETC vehicle recognition device on the navigation path, each intersection meeting a first preset condition, as a navigation prompt point for the intersection, based on the position information, and includes:
and the navigation server selects a first ETC vehicle recognition device which is closest to the distance before each intersection on the navigation path from all the ETC vehicle recognition devices as a navigation prompt point of each intersection based on the position information.
In one embodiment, the navigation server selects, from the all ETC vehicle recognition devices, a first ETC vehicle recognition device on the navigation path, each intersection meeting a first preset condition, as a navigation prompt point for the intersection, based on the position information, and further includes:
the navigation server respectively judges whether the target vehicle needs to change lanes at each intersection on the navigation path;
if the lane change is needed, the navigation server judges whether the distance between the first ETC vehicle identification device closest to the intersection needing the lane change and the intersection is smaller than a preset threshold value or not;
and if the distance between the first ETC vehicle identification device and the intersection is smaller than the preset threshold value, the navigation server selects the first ETC vehicle identification device which is next closest to the intersection as a navigation prompt point of the intersection.
In one embodiment, before the navigation server plans the navigation path for the target vehicle, the method further includes:
the navigation server receives a navigation request initiated by the target vehicle, wherein the navigation request comprises a destination of the target vehicle;
the navigation server determines a starting point of the target vehicle;
the navigation server plans a navigation path for a target vehicle, comprising:
the navigation server plans a navigation path for the target vehicle based on the departure point and the destination of the target vehicle.
In one embodiment, the navigation server determining a departure point of the target vehicle includes:
the navigation server sends a target vehicle identification request to the ETC background system, so that the ETC background system sets monitoring triggers for all ETC vehicle identification devices after receiving the target vehicle identification request, the monitoring triggers are activated when a certain second ETC vehicle identification device initially identifies the target vehicle, and position information of the second ETC vehicle identification device is returned to the navigation server when the monitoring triggers are activated;
the navigation server acquires the position information of the second ETC vehicle recognition device, and determines the position information of the second ETC vehicle recognition device as a departure point of the target vehicle.
In one embodiment, the method further comprises:
the navigation server sets a third ETC vehicle identification device which is far away from each intersection and accords with a second preset condition in the driving direction of each intersection on a non-navigation path as a rerouting prompt point of each intersection;
the navigation server sends the rerouting prompt points of the intersections to an ETC background system, so that the ETC background system sets triggers for corresponding third ETC vehicle identification devices according to the rerouting prompt points, activates the triggers when the third ETC vehicle identification devices identify the target vehicles, and then sends rerouting prompts to the navigation server when the triggers are activated;
and after receiving the rerouting prompt, the navigation server plans a path for the target vehicle again.
According to a second aspect of the embodiments of the present disclosure, there is provided an ETC-based navigation method, including:
the ETC background system acquires the driving direction and the navigation prompt point of a target vehicle on each intersection on a navigation path, wherein the driving direction of each intersection is the driving direction of each intersection on the navigation path of the target vehicle, which is analyzed in advance after the navigation server plans the navigation path for the target vehicle, and the navigation prompt point of each intersection is a first ETC vehicle identification device which is selected by the navigation server and accords with a first preset condition at each intersection on the navigation path;
the ETC background system sets a trigger for a corresponding first ETC vehicle identification device according to the navigation prompt point so that the first ETC vehicle identification device can identify the target vehicle and then activate the trigger, and then pushes the distance between the target vehicle and the corresponding intersection and the running direction of the intersection to the vehicle-mounted ETC electronic tag of the target vehicle when the trigger is activated, so that the vehicle-mounted electronic tag sends out navigation prompts according to preset rules.
In one embodiment, before the ETC background system acquires the driving direction of the target vehicle at each intersection on the navigation path and the navigation prompt point thereof, the ETC background system further includes:
the ETC background system acquires a navigation path sent by the navigation server;
the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path;
the ETC background system sends the position information to the navigation server so that the navigation server selects a first ETC vehicle recognition device, meeting a first preset condition, of each intersection on the navigation path from all ETC vehicle recognition devices based on the position information to serve as a navigation prompt point of each intersection.
In one embodiment, the method further comprises:
the ETC background system acquires a target vehicle identification request sent by the navigation server;
the ETC background system sets monitoring triggers for all ETC vehicle identification devices based on the target vehicle identification request, activates the monitoring triggers when a certain second ETC vehicle identification device initially identifies the target vehicle, sends the position information of the second ETC vehicle identification device to the navigation server when the monitoring triggers are activated, so that the navigation server acquires the position information of the second ETC vehicle identification device, determines the position information of the second ETC vehicle identification device as the departure point of the target vehicle, and plans a navigation path for the target vehicle according to the departure point of the target vehicle and the destination of the target vehicle.
According to a third aspect of the embodiments of the present disclosure, there is provided a navigation server including a memory and a processor, the memory having a computer program stored therein, the processor executing the ETC-based navigation method when the processor runs the computer program stored in the memory.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an ETC backend system, including a memory and a processor, where the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the other navigation method based on the ETC.
According to a fifth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, the processor performs the one ETC-based navigation method or the another ETC-based navigation method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the navigation method based on ETC provided by the embodiment of the disclosure comprises the following steps: the navigation server plans a navigation path for the target vehicle; the navigation server analyzes the driving direction of the target vehicle at each intersection on the navigation path in advance; the navigation server selects a first ETC vehicle identification device of which each intersection meets a first preset condition on the navigation path of the target vehicle as a navigation prompt point of each intersection; and the navigation server sends the running direction of the target vehicle at each intersection on the navigation path and the navigation prompt points thereof to an ETC background system. The ETC vehicle identification device is used for acquiring the passing characteristics of the vehicle in real time, and the navigation is realized by combining the navigation path planned by the navigation server to identify the vehicle information, so that the real-time navigation service can be provided for the vehicle without depending on a real-time positioning system, and the problems that the vehicle loses navigation guidance and the like under the condition that the positioning system fails are effectively solved.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic flow chart of an ETC-based navigation method according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of an ETC-based navigation method according to another embodiment of the present disclosure;
fig. 3 is a schematic flow chart of an ETC-based navigation method according to another embodiment of the present disclosure;
fig. 4 is a schematic flow chart of another navigation method based on ETC according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a navigation server according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an ETC background system according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an ETC-based navigation system according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, specific embodiments of the present disclosure are described below in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; also, the embodiments and features of the embodiments in the present disclosure may be arbitrarily combined with each other without conflict.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of explanation of the present disclosure, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
In the related art, a positioning system and a map system are mainly matched with each other to realize navigation of a vehicle. No matter the navigated path is calculated in the network and then sent to the terminal or calculated locally at the terminal, the terminal cannot be positioned in real time in actual use, and once the positioning system fails, such as a tunnel section, the vehicle loses navigation guidance.
At present, an ETC (Electronic Toll Collection) system realizes full coverage on domestic expressways, and the ETC system counts the actual routes of vehicles and charges accordingly, so a vehicle information acquisition portal frame covering the whole network is built, and a vehicle-mounted ETC information reading device (namely an ETC vehicle identification device) is installed on the portal frame.
Referring to fig. 1, fig. 1 is a schematic flow chart of an ETC-based navigation method according to an embodiment of the present disclosure, where the method includes steps S101 to S103.
In step S101, the navigation server plans a navigation path for the target vehicle.
Specifically, a vehicle user can send a navigation request to the navigation server through a mobile terminal, and the navigation server plans a navigation path for the target vehicle according to the departure place and the destination of the target vehicle after receiving the navigation request of the vehicle.
In step S102, the navigation server analyzes the traveling direction of the target vehicle at each intersection on the navigation route in advance.
It will be appreciated that each intersection on the navigation path is an intersection that the target vehicle path will encounter on the navigation path.
In the related technology, a positioning system is combined with map information to remind a vehicle of turning at an intersection ahead, and on an expressway, for special geographic positions of mountainous areas, tunnels and the like, wireless communication network positioning or satellite positioning may be disabled, for example, when a long, deep, high-speed and high-speed junction turns to a large, wide and high-speed intersection in a red peak direction, the distance from the exit of the tunnel is only 200 meters, the position is acquired by reconnecting a satellite according to a speed of 60 kilometers per hour and only 12 seconds of reaction time is needed, the whole process is prompted and then a driver reacts, particularly, the driver can habitually accelerate when driving out of the tunnel, the reaction time is further shortened, external equipment is not only needed for navigation, and meanwhile, the navigation accuracy is difficult to guarantee. In the embodiment, the existing ETC vehicle identification device is utilized, and the navigation server is combined to plan a navigation path for the vehicle in advance and analyze the driving direction of the vehicle at the intersection, so that when the ETC vehicle identification device identifies that the vehicle passes through, the vehicle is subjected to navigation prompt, and the problems can be well avoided.
In step S103, the navigation server selects, as a navigation prompt point for each intersection, a first ETC vehicle recognition device that satisfies a first preset condition at each intersection on the navigation path.
In order to improve navigation efficiency and save cost, in this embodiment, after a navigation server plans a navigation path for a target vehicle, a first vehicle identification device, which meets a first preset condition, of each intersection on the navigation path is selected as a navigation prompt point of each intersection.
Specifically, the navigation server generates a plurality of data items according to the data items, each data item comprises a license plate number of a target vehicle, an ETC vehicle identification device number corresponding to a navigation prompt point, a distance of the navigation prompt point along the intersection, a driving direction of the intersection and the like, wherein the driving direction of the intersection can be right, left, straight, XX meters to the right and then left, XX meters to the left and then right, XX meters to the right and then right, XX meters to the left and then left and other basic knowledge information, the basic knowledge information is sent to the ETC background system, and the ETC background system sets a trigger for the ETC vehicle identification device according to the prompt point items.
In one embodiment, step S103 includes the steps of:
the navigation server sends the navigation path to an ETC background system so that the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path and returns the position information to the navigation server;
and the navigation server selects a first ETC vehicle identification device which accords with a first preset condition at each intersection on the navigation path from all ETC vehicle identification devices based on the position information as a navigation prompt point of each intersection.
The ETC background system can be used for uniformly managing all ETC vehicle identification devices. The navigation server of the embodiment sends the planned navigation path to the ETC background management system, the ETC background system acquires the position information of all ETC vehicle identification devices, in practical application, the position information is the position information for installing the ETC vehicle identification devices, the ETC vehicle identification devices are installed on the portal frame under the common condition, the position information is the position coordinate of the portal frame, and the portal frame number can be acquired simultaneously in some embodiments in order to distinguish each ETC vehicle identification device conveniently. And then the navigation server further selects a corresponding first ETC vehicle identification device as a navigation prompt point of each intersection according to the position information of all ETC vehicle identification devices.
It should be noted that, the first preset condition may be set by a person skilled in the art according to actual situations.
Further, the navigation server selects a first ETC vehicle recognition device, which meets a first preset condition at each intersection on the navigation path, from all the ETC vehicle recognition devices based on the position information, as a navigation prompt point of the intersection, and the navigation server comprises the following steps:
the navigation server selects the first ETC vehicle recognition device which is closest to the intersection in front of each intersection on the navigation path as the navigation prompt point of each intersection from all ETC vehicle recognition devices based on the position information, and the ETC vehicle recognition device which is closest to each intersection on the navigation path is selected, namely the ETC vehicle recognition device which is closest to each intersection on each path in the direction of the coming vehicle is set as the navigation prompt point, so that effective prompt is carried out when the vehicle is about to enter the intersection.
Further, in view of the fact that a vehicle may need to change lanes at an intersection, and if the first ETC vehicle recognition device is too close to the intersection in the lane changing process, the navigation prompt may be too late to prompt the vehicle to change lanes, so that the vehicle enters a wrong lane, in order to avoid the above problem, in this embodiment, the navigation server selects, from all the ETC vehicle recognition devices, the first ETC vehicle recognition device, which meets a first preset condition at each intersection on the navigation path, as the navigation prompt point of the intersection, based on the position information, and further includes the following steps:
the navigation server respectively judges whether each intersection on the navigation path needs lane change;
if the lane change is needed, the navigation server judges whether the distance between the first ETC vehicle identification device closest to the intersection needing the lane change and the intersection is smaller than a preset threshold value or not;
and if the distance between the first ETC vehicle identification device and the intersection is smaller than the preset threshold value, the navigation server selects the first ETC vehicle identification device which is next closest to the intersection as a navigation prompt point of the intersection.
It should be noted that the preset threshold is a distance threshold between the corresponding first ETC vehicle identification device and the intersection, for example, set to 1000m, and when the distance is smaller than 1000m, a next-nearest ETC vehicle identification device is selected.
In step S104, the navigation server sends the traveling direction of the target vehicle at each intersection on the navigation path and the navigation prompt points thereof to the ETC backend system, so that the ETC backend system sets a trigger for the corresponding first ETC vehicle identification device according to the navigation prompt points, activates the trigger when the first ETC vehicle identification device identifies the target vehicle, and then pushes the distance from the target vehicle to the corresponding intersection and the traveling direction of the intersection to the vehicle-mounted ETC electronic tag of the target vehicle, so that the vehicle-mounted electronic tag sends out a navigation prompt according to a preset rule.
Specifically, when the target vehicle passes through a certain navigation prompt point, namely is recognized by a certain first ETC vehicle recognition device selected as the navigation prompt point, a trigger pre-configured on the ETC vehicle recognition device is triggered, so as to push the distance from the current position to the next intersection and the direction to be adopted (namely the driving direction analyzed by the navigation server) to the vehicle-mounted ETC electronic tag. The method comprises the steps that a vehicle-mounted electronic tag sends a navigation prompt according to a preset rule, specifically, after receiving information pushed by an ETC vehicle identification device, the vehicle-mounted ETC electronic tag reads a vehicle odometer, calculates the distance between a target vehicle and a front intersection in real time, and sends the navigation prompt to a driver, specifically, the vehicle-mounted ETC electronic tag reads the vehicle odometer in real time through wireless connection such as Bluetooth (if the vehicle does not support Bluetooth wireless connection, external equipment or other modes inserted into an OBD (on Board diagnostics) interface can be used), and then the numerical value obtained by adding the current reading of the odometer and the distance between the current position and the intersection is taken as a target value; sending out 1 or more voice prompts along with the reading of the odometer approaching the target value, wherein the content of the prompt is the trend used by the intersection received from the ETC vehicle recognition device. Of course, in some embodiments, the navigation prompting mode of the vehicle-mounted electronic tag may be set according to actual situations, and the navigation prompting mode is not specifically limited by the present disclosure.
It can be understood that, in the application scenario of the expressway, since the extended section of the expressway, i.e., the section between the toll station and the urban area, is currently also provided with the ETC vehicle identification device (which is used for charging the section of the expressway), the navigation information can be obtained immediately as soon as the vehicle enters the expressway.
Referring to fig. 2, fig. 2 is a schematic flow chart of another navigation method based on ETC according to an embodiment of the present disclosure, which further illustrates the content of the navigation server planning the navigation path for the target vehicle compared to the previous embodiment, specifically, in addition to steps S101-S104, before the navigation server plans the navigation path for the target vehicle (i.e., step S101), the following steps S201 and S202 are further included, and step S101 is further divided into step S101 a.
In step S201, the navigation server receives a navigation request initiated by the target vehicle, where the navigation request includes a destination of the target vehicle.
It should be noted that the navigation request initiated by the target vehicle may be initiated by the user terminal.
In step S202, the navigation server determines a departure point of the target vehicle;
in step S101a, the navigation server plans a navigation path for the target vehicle based on the departure point and the destination of the target vehicle.
Further, the navigation server determines a departure point of the target vehicle (i.e., step S202), including the steps of:
the navigation server sends a target vehicle identification request to the ETC background system, so that the ETC background system sets monitoring triggers for all ETC vehicle identification devices, the monitoring triggers are activated when a certain second ETC vehicle identification device identifies the target vehicle for the first time, and position information of the second ETC vehicle identification device is returned to the navigation server when the monitoring triggers are activated;
the navigation server acquires the position information of the second ETC vehicle recognition device, and determines the position information of the second ETC vehicle recognition device as a departure point of the target vehicle.
It should be noted that the first ETC vehicle recognition device and the second ETC vehicle recognition device are only used for distinguishing and setting a navigation prompt point and determining a target vehicle departure point, and have no other specific meaning, the second ETC vehicle recognition device in this embodiment may be one of the first ETC vehicle recognition devices, for example, when the vehicle initially enters a highway, the first second ETC vehicle recognition device recognizing the vehicle is the first ETC vehicle recognition device in the navigation prompt points of each intersection set by the navigation server.
Referring to fig. 3, fig. 3 is a schematic flow chart of a navigation method based on ETC according to another embodiment of the present disclosure, in order to quickly navigate a target vehicle to a correct road and improve navigation efficiency when the target vehicle is walking on a wrong road, on the basis of the previous embodiment, the present embodiment plans a path of the vehicle again by setting a rerouting prompting point, so that the vehicle is driven on the correct road, specifically, the method further includes steps S301 to S303.
In step S301, the navigation server sets a third ETC vehicle recognition device that meets a second preset condition in a driving direction away from each intersection on a non-navigation path as a rerouting prompting point for each intersection.
Specifically, the driving direction away from the intersection is the direction away from the intersection on the non-navigation path, wherein the third ETC vehicle recognition device meeting the second preset condition may be the first ETC vehicle recognition device to be passed through on the non-navigation path in the direction away from the intersection, and if the target vehicle misses the correct path, the target vehicle will go to another intersection, and at this time, the first ETC vehicle recognition device to be passed through on another intersection is set as the rerouting prompting point, in addition to the intersection passed along the correct path. In some embodiments, a person skilled in the art may also set different second preset conditions according to an actual situation, which is not described herein again.
In step S302, the navigation server sends the rerouting indicating points at the intersections to an ETC backend system, so that the ETC backend system sets a trigger for a corresponding third ETC vehicle recognition device according to the rerouting indicating points, activates the trigger when the third ETC vehicle recognition device recognizes the target vehicle, and then sends a rerouting indication to the navigation server when the trigger is triggered.
In step S303, the navigation server plans a path for the target vehicle again after receiving the rerouting prompt.
Specifically, if the target vehicle is identified by any one of the rerouting prompt points, the rerouting prompt is sent to the navigation server, the navigation server plans a path for the target vehicle again after receiving the rerouting prompt, and resets the navigation prompt points for navigation prompt and the like, further, the ETC background system is notified to clear the trigger set up before, and the corresponding trigger is reset according to the new navigation prompt points.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides another navigation method based on ETC, as shown in fig. 4, the method includes step S401 and step S402.
In step S401, the ETC background system obtains a driving direction and a navigation prompt point of a target vehicle at each intersection on a navigation path sent by a navigation server, where the driving direction of each intersection is the driving direction of each intersection on the navigation path of the target vehicle analyzed in advance after the navigation server plans the navigation path for the target vehicle, and the navigation prompt point of each intersection is a first ETC vehicle identification device that meets a first preset condition at each intersection on the navigation path selected by the navigation server;
in step S402, the ETC backend system sets a trigger for the corresponding first ETC vehicle identification device according to the navigation prompt point, so that the trigger is activated when the first ETC vehicle identification device identifies the target vehicle, and then pushes the distance from the target vehicle to the corresponding intersection and the driving direction of the intersection to the vehicle-mounted ETC electronic tag of the target vehicle when the trigger is activated, so that the vehicle-mounted electronic tag sends out a navigation prompt according to a preset rule.
In one embodiment, before the ETC background system acquires the driving direction of the target vehicle at each intersection on the navigation path and the navigation prompt point thereof, which are sent by the navigation server, the method further comprises the following steps:
the ETC background system acquires a navigation path sent by the navigation server;
the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path;
the ETC background system sends the position information to the navigation server so that the navigation server selects a first ETC vehicle recognition device, meeting a first preset condition, of each intersection on the navigation path from all ETC vehicle recognition devices based on the position information to serve as a navigation prompt point of each intersection.
In one embodiment, the method further comprises:
the ETC background system acquires a target vehicle identification request sent by the navigation server;
the ETC background system sets monitoring triggers for all ETC vehicle identification devices based on the target vehicle identification request, activates the monitoring triggers when a certain second ETC vehicle identification device initially identifies the target vehicle, sends the position information of the second ETC vehicle identification device to the navigation server when the monitoring triggers are activated, so that the navigation server acquires the position information of the second ETC vehicle identification device, determines the position information of the second ETC vehicle identification device as the departure point of the target vehicle, and plans a navigation path for the target vehicle according to the departure point of the target vehicle and the destination of the target vehicle.
In one embodiment, the method further comprises:
the ETC background system acquires rerouting prompt points of all intersections sent by the navigation server, wherein the rerouting prompt points of all intersections are third ETC vehicle identification devices which are arranged on the navigation server and are far away from all intersections and meet second preset conditions in the driving direction;
the ETC background system sets a trigger for a corresponding third ETC vehicle identification device according to the rerouting prompt point, so that the trigger is activated when the third ETC vehicle identification device identifies a target vehicle, then the rerouting prompt is sent to the navigation server, and the navigation server plans a path for the target vehicle again after receiving the rerouting prompt.
In some embodiments, the target vehicle may leave the highway, and the ETC backend system notifies the navigation server if the navigated vehicle is found to leave the highway during navigation. And the navigation server judges whether the navigated vehicle reaches the destination of long-distance navigation according to the position of the portal frame provided by the ETC background system. If the terminal does not reach the terminal, sending inquiry information to the terminal submitting the navigation request to inquire whether to terminate the navigation, and automatically terminating the navigation if a reply is not received after time out. If the reply is received to indicate that the navigation is required to be continued, the navigation server replans the navigation path for the target vehicle.
Based on the same technical concept, the embodiment of the present disclosure also provides a navigation server, as shown in fig. 5, the navigation server 50 includes a memory 51 and a processor 52, the memory 51 stores a computer program, and when the processor 52 runs the computer program stored in the memory 51, the processor executes the ETC-based navigation method.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides an ETC backend system, as shown in fig. 6, where the ETC backend system 61 includes a memory 61 and a processor 62, the memory 61 stores a computer program, and when the processor 62 runs the computer program stored in the memory 61, the processor executes the other navigation method based on the ETC.
Based on the same technical concept, the disclosed embodiments correspondingly provide an ETC-based navigation system, as shown in fig. 7, which includes a navigation server 50, an ETC backend system 60, an ETC vehicle identification device 40, an on-board ETC electronic tag 30, a vehicle 20, and a mobile terminal 10, wherein,
the navigation server 50 calculates a navigation path according to a destination provided by the mobile terminal 10; acquiring a gantry number and coordinates thereof of the ETC vehicle recognition device 40 of the route path from the ETC background system 60; screening out a portal frame to be used as a prompting point for the direction of the corresponding intersection; then generating a plurality of data items, wherein each data item is composed of a license plate number, a portal frame number corresponding to a prompt point, a distance of the prompt point along a road intersection and a direction of the road intersection, and the direction of the road intersection is as follows: the basic indication information comprises basic indication information of going right, left and straight, going right and then left after xx meters, going right after xx meters left, going right after xx meters right, going left after xx meters left, and going left. These data entries are then sent to ETC backend system 60.
The ETC background system 60 acquiring vehicle information of the route from the ETC vehicle recognition device 40; a trigger is set on the corresponding ETC vehicle recognition device 40 according to the point of presentation entry received from the navigation server 50.
The ETC vehicle identification device 40 is provided with a vehicle-mounted electronic tag reading device for identifying vehicle information; and the function of sending information to the vehicle-mounted ETC electronic tag is added.
The ETC vehicle identification device corresponds to an ETC portal frame, and not all ETC vehicle identification devices are arranged on the portal frame, for example, the ETC vehicle identification device at a toll station can be arranged beside a toll booth, and some ETC vehicle identification devices are arranged on a vertical rod beside a road or a guardrail. Since most of the cases are portal frame-mounted and are convenient to describe, the description above has some places where the "portal frame" is used and some are directly written as "ETC vehicle recognition device".
The on-vehicle ETC electronic tag 30 has a function of acquiring information from the ETC vehicle recognition device 40. Moreover, the vehicle-mounted device which is added with the wireless connection function of Bluetooth and the like to connect the vehicle 20 at least comprises the function of reading the vehicle odometer information; and has a navigation prompt function, such as a voice broadcast function.
The vehicle 20 may have a function of outputting odometer information to the outside through a wireless connection function such as bluetooth, or may have a function of outputting vehicle odometer information to the outside through an obd (on Board diagnostics) interface externally connected with a device having a wireless connection function such as bluetooth.
The mobile terminal 10 is any terminal capable of sending a navigation service request to a navigation server. Such as by a short message, instant message, phone voice call, web access, app client, and so forth. And the terminal need not be on the vehicle being navigated.
Based on the same technical concept, embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored thereon, where when the computer program is executed by a processor, the processor executes the one navigation method based on the ETC or the other navigation method based on the ETC.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the 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 disclosure.
Claims (10)
1. An ETC-based navigation method, comprising:
the navigation server plans a navigation path for the target vehicle;
the navigation server analyzes the driving direction of the target vehicle at each intersection on the navigation path in advance;
the navigation server sends the navigation path to an ETC background system so that the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path and returns the position information to the navigation server;
the navigation server selects a first ETC vehicle identification device which is closest to the distance in front of each intersection on the navigation path from all ETC vehicle identification devices as a navigation prompt point of each intersection on the basis of the position information;
the navigation server sends the driving direction of each intersection on the navigation path and the navigation prompt points thereof to an ETC background system, so that the ETC background system sets a trigger for a corresponding first ETC vehicle identification device according to the navigation prompt points, the first ETC vehicle identification device identifies the target vehicle and activates the trigger, and then when the trigger is activated, the distance from the target vehicle to the corresponding intersection and the driving direction at the intersection are pushed to a vehicle-mounted ETC electronic tag of the target vehicle, so that the vehicle-mounted electronic tag sends out the navigation prompt according to a preset rule.
2. The method according to claim 1, wherein the navigation server selects a first ETC vehicle recognition device, which satisfies a first preset condition at each intersection on the navigation path, from the all ETC vehicle recognition devices as a navigation prompt point of the intersection based on the position information, further comprising:
the navigation server respectively judges whether the target vehicle needs to change lanes at each intersection on the navigation path;
if the lane change is needed, the navigation server judges whether the distance between the first ETC vehicle identification device closest to the intersection needing the lane change and the intersection is smaller than a preset threshold value or not;
and if the distance between the first ETC vehicle identification device and the intersection is smaller than the preset threshold value, the navigation server selects the first ETC vehicle identification device which is next closest to the intersection as a navigation prompt point of the intersection.
3. The method of claim 1, further comprising, prior to the navigation server planning the navigation path for the target vehicle:
the navigation server receives a navigation request initiated by the target vehicle, wherein the navigation request comprises a destination of the target vehicle;
the navigation server determines a starting point of the target vehicle;
the navigation server plans a navigation path for a target vehicle, comprising:
the navigation server plans a navigation path for the target vehicle based on the departure point and the destination of the target vehicle.
4. The method of claim 3, wherein the navigation server determining a departure point for the target vehicle comprises:
the navigation server sends a target vehicle identification request to the ETC background system, so that the ETC background system sets monitoring triggers for all ETC vehicle identification devices after receiving the target vehicle identification request, the monitoring triggers are activated when a certain second ETC vehicle identification device initially identifies the target vehicle, and position information of the second ETC vehicle identification device is returned to the navigation server when the monitoring triggers are activated;
the navigation server acquires the position information of the second ETC vehicle recognition device, and determines the position information of the second ETC vehicle recognition device as a departure point of the target vehicle.
5. The method of claim 1, further comprising:
the navigation server sets a third ETC vehicle identification device which is far away from each intersection and accords with a second preset condition in the driving direction of each intersection on a non-navigation path as a rerouting prompt point of each intersection;
the navigation server sends the rerouting prompt points of the intersections to an ETC background system, so that the ETC background system sets triggers for corresponding third ETC vehicle identification devices according to the rerouting prompt points, activates the triggers when the third ETC vehicle identification devices identify the target vehicles, and then sends rerouting prompts to the navigation server when the triggers are activated;
and after receiving the rerouting prompt, the navigation server plans a path for the target vehicle again.
6. An ETC-based navigation method, comprising:
the ETC background system acquires a navigation path sent by the navigation server;
the ETC background system acquires the position information of all ETC vehicle identification devices on the navigation path;
the ETC background system sends the position information to the navigation server so that the navigation server selects a first ETC vehicle recognition device which is closest to the position of each intersection on the navigation path from all ETC vehicle recognition devices as a navigation prompt point of each intersection on the basis of the position information;
the ETC background system acquires the driving direction and the navigation prompt point of a target vehicle on each intersection on a navigation path, wherein the driving direction of each intersection is the driving direction of each intersection on the navigation path of the target vehicle, which is analyzed in advance after the navigation server plans the navigation path for the target vehicle, and the navigation prompt point of each intersection is a first ETC vehicle identification device which is selected by the navigation server and accords with a first preset condition at each intersection on the navigation path;
the ETC background system sets a trigger for a corresponding first ETC vehicle identification device according to the navigation prompt point so that the first ETC vehicle identification device can identify the target vehicle and then activate the trigger, and then pushes the distance between the target vehicle and the corresponding intersection and the running direction of the intersection to the vehicle-mounted ETC electronic tag of the target vehicle when the trigger is activated, so that the vehicle-mounted electronic tag sends out navigation prompts according to preset rules.
7. The method of claim 6, further comprising:
the ETC background system acquires a target vehicle identification request sent by the navigation server;
the ETC background system sets monitoring triggers for all ETC vehicle identification devices based on the target vehicle identification request, activates the monitoring triggers when a certain second ETC vehicle identification device initially identifies the target vehicle, sends the position information of the second ETC vehicle identification device to the navigation server when the monitoring triggers are activated, so that the navigation server acquires the position information of the second ETC vehicle identification device, determines the position information of the second ETC vehicle identification device as the departure point of the target vehicle, and plans a navigation path for the target vehicle according to the departure point of the target vehicle and the destination of the target vehicle.
8. A navigation server, characterized by comprising a memory in which a computer program is stored and a processor that executes the ETC-based navigation method according to any one of claims 1 to 5 when the processor runs the computer program stored in the memory.
9. An ETC backend system, characterized by comprising a memory in which a computer program is stored and a processor that executes the ETC-based navigation method according to any one of claims 6 and 7 when the processor runs the computer program stored in the memory.
10. A computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to perform the ETC based navigation method according to any one of claims 1 to 5, or the ETC based navigation method according to any one of claims 6 and 7.
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