CN107886584B - Wake-up signal sending control method, controller, road side unit and toll collection tag - Google Patents
Wake-up signal sending control method, controller, road side unit and toll collection tag Download PDFInfo
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- CN107886584B CN107886584B CN201711020602.3A CN201711020602A CN107886584B CN 107886584 B CN107886584 B CN 107886584B CN 201711020602 A CN201711020602 A CN 201711020602A CN 107886584 B CN107886584 B CN 107886584B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- 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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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0133—Traffic data processing for classifying traffic situation
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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Abstract
The invention relates to a method for controlling the sending of a wake-up signal, a path identification method, a controller, a road side unit and a charging tag, wherein the method for controlling the sending of the wake-up signal comprises the following steps: acquiring interactive information of each road side unit of the identification station and a toll tag of a passing vehicle in real time; determining the congestion state of the current time interval according to the interaction information; and adjusting the interval time of sending the wake-up signal by each road side unit according to the congestion state. By implementing the technical scheme of the invention, when the road is congested, the power consumption of the card can be reduced, and the service life of the card can be prolonged. In addition, due to the fact that the vehicle speed is low when the vehicle is congested, enough time is provided for completing the transaction, and the transaction cannot be missed.
Description
Technical Field
The invention relates to the field of Intelligent Transportation (ITS), in particular to a sending control method of a wake-up signal, a path identification method, a controller, a road side unit and a charging label.
Background
In the path recognition application, for ETC vehicles, the path identification base station writes path information into an OBU and an IC card, and for non-ETC vehicles, a 5.8G composite card is received at the entrance of a toll station, and when the non-ETC vehicles pass through the path identification station, the path identification base station writes the path information into the 5.8G composite card, reads the path information when passing through the exit, and then charges. However, since the 5.8G combi card is not mounted on the front windshield like the OBU, the driver can take the 5.8G combi card and place the card at any position in the vehicle, and in order to ensure that the card can be woken up at any position, the antenna of the card is usually designed to be an omnidirectional antenna (the OBU is a directional antenna), and the sensitivity is higher than that of the OBU. Furthermore, in order to ensure the service life of the battery in the 5.8G combi card, the transmission power of the card is generally small. In addition, in order to ensure the success rate of identification and to lengthen the transaction area, the transmission power of the base station is usually relatively high. For the OBU, this communication area is symmetrical (symmetrical means that when the OBU starts to wake up to reply data at a certain position, the base station antenna can receive the data fed back by the OBU), but for the 5.8G composite card, this communication area is asymmetrical. Because: the sensitivity of the 5.8G composite card is high, the transmitting power is small, so when the card is awakened and then data is replied, the base station cannot receive the data, and only when the card is away from the antenna to a certain distance, the communication areas can be symmetrical. Such as: the card is awakened at the position of 200 meters and starts to reply data, but the base station cannot receive the data all the time, and only when the card reaches the position of 100 meters, the base station can receive the data and starts to complete the transaction, so that the card is dormant. Therefore, at the distance of 200m to 100 m, the card can always reply data, and the base station can not receive the data and can always consume power to do useless work. When vehicles normally pass, the 5.8G composite cards have acceptable power consumption loss, and when the vehicles run slowly due to road congestion, the power consumption of the cards is large, so that the 5.8G composite cards are easily scrapped due to power consumption.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sending control method of a wake-up signal, a path identification method, a controller, a road side unit and a toll label aiming at the defect of high power consumption of the toll label in the prior art, particularly a 5.8G composite card when the toll label meets road congestion, so that the power consumption of the toll label in road congestion is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for controlling transmission of a wake-up signal is constructed, and comprises the following steps:
acquiring interactive information of each road side unit of the identification station and a toll tag of a passing vehicle in real time;
determining the congestion state of the current time interval according to the interaction information;
and adjusting the interval time of sending the wake-up signal by each road side unit according to the congestion state.
Preferably, the step of determining the congestion status of the current period according to the interaction information comprises:
determining position information and time information of the corresponding vehicle in different identification steps according to the interaction information of the corresponding road side unit and the charging label of the corresponding vehicle, and calculating speed information of the corresponding vehicle in different identification steps;
calculating the average speed of the vehicle in the current time period according to the plurality of pieces of speed information;
and determining the congestion state of the current time period according to the average speed of the vehicle in the current time period.
Preferably, the step of calculating the average speed of the vehicle for the current period based on the plurality of speed information includes:
and calculating the average speed of the vehicle in the current time period according to the speed information of the same vehicle in a plurality of different identification steps.
Preferably, the step of calculating the average speed of the vehicle for the current period based on the plurality of speed information further comprises:
and calculating an average value of the speed information of the plurality of vehicles in the current time period to obtain the average speed of the vehicles in the current time period.
Preferably, the step of adjusting the interval time for each roadside unit to transmit the wake-up signal according to the congestion state includes:
if the congestion state is very congested, setting the interval time of sending the wake-up signal by each road side unit as a first time value;
if the congestion state is general congestion, setting the interval time of sending the wake-up signal by each road side unit as a second time value;
and if the congestion state is normal driving, setting the interval time of sending the wake-up signal by each road side unit as a third time value, wherein the first time value is greater than the second time value, and the second time value is greater than the third time value.
The invention also constructs a path identification method of the identification station, which comprises the following steps:
the road side unit broadcasts the awakening signal at intervals after adjustment and receives the awakening response signal returned by the charging label, wherein the interval after adjustment is obtained according to the method;
the road side unit sends a request signal for setting path information to the charging label and receives a response signal for setting path information returned by the charging label;
and the road side unit sends an event report to the charging label so that the charging label releases a link.
The invention also constructs a path identification method of the charging label, which comprises the following steps:
receiving an awakening signal discontinuously broadcast by the road side unit at the adjusted interval time, and returning an awakening response signal to the road side unit, wherein the adjusted interval time is obtained according to the method;
receiving a request signal for setting path information sent by a road side unit, and returning a response signal for setting the path information to the road side unit;
and receiving an event report sent by the road side unit, and releasing the link.
The invention also constitutes an identity station controller characterized in that it comprises a first processor for implementing the steps of the method for controlling the transmission of a wake-up signal as described above when executing a computer program stored in a memory.
The invention also constitutes a road side unit characterized in that it comprises a second processor for implementing the steps of the method of path identification of an identification station as described above when executing a computer program stored in a memory.
The invention also constitutes a rating tag characterized in that it comprises a third processor for implementing the steps of the method for rating a path of a rating tag as described above when executing a computer program stored in a memory.
By implementing the technical scheme of the invention, the interactive information of each road side unit of the identification station and the toll tags of the passing vehicles can be acquired in real time, the congestion state of the current time interval is determined according to the interactive information, and the interval time for each road side unit to send the wake-up signal is dynamically adjusted according to the congestion state, so that when the road is congested, the wake-up times of the toll tags, particularly 5.8G composite cards, are reduced by increasing the sending interval of the wake-up signal, thereby reducing the power consumption of the cards and prolonging the service life of the cards. In addition, due to the fact that the vehicle speed is low when the vehicle is congested, enough time is provided for completing the transaction, and the transaction cannot be missed.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort. In the drawings:
FIG. 1 is a flowchart of a first embodiment of a method for controlling transmission of wake-up signals according to the present invention;
fig. 2 is a schematic structural diagram of a path identification system.
FIG. 3 is a flowchart illustrating a first embodiment of step S12 in FIG. 1;
fig. 4A and 4B are flow charts of the road side unit performing path identification on the ETC electronic tag and the CPC composite card, respectively;
FIG. 5 is a flowchart of a first embodiment of a method for identifying a path of a station according to the present invention;
fig. 6 is a flowchart of a first embodiment of a method for identifying a path of a charging tag according to the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
First, it is noted that, due to the asymmetry of communication between the 5.8G composite card and the rsu in the prior art, the rsu may not receive the response signal of the 5.8G composite card when the distance between the two is long. If the interval time for sending the wake-up signal by the road side unit is set to be shorter, namely the wake-up signal is sent more densely, the number of response signals replied by the 5.8G composite card is larger, and the power consumption of the card is larger; if the interval time for sending the wake-up signal by the road side unit is set to be longer, when the vehicle speed is faster and the number of vehicles in a transaction area is larger, the transaction may be missed. The invention aims to solve the problems, and the roadside unit can dynamically adjust the sending interval of the wake-up signal according to the road congestion condition, so that when the road is congested, the sending interval of the wake-up signal is increased to reduce the number of wake-up times of the charging label, particularly the 5.8G composite card, thereby reducing the power consumption of the card and prolonging the service life of the card. In addition, due to the fact that the vehicle speed is low when the vehicle is congested, enough time is provided for completing the transaction, and the transaction cannot be missed.
Fig. 1 is a flowchart of a first embodiment of a method for controlling transmission of a wake-up signal according to the present invention, where the method for controlling transmission of a wake-up signal includes the following steps:
s11, acquiring interactive information of each road side unit of the identification station and a toll tag of a passing vehicle in real time;
in this step, it is first explained that the toll collection tag includes an ETC electronic tag mounted on a vehicle or a 5.8G composite card that a user gets at an entrance of a highway. In addition, with reference to fig. 2, a plurality of identification stations are arranged in the highway section, and each identification station includes a group of road side devices, so that when a vehicle enters an effective communication area of a corresponding road side device, the road side device performs information interaction with the toll collection tag on the vehicle, thereby completing the path identification of the toll collection tag, and the vehicle information and the identification station information of the identification station where the vehicle is located are sent to the background server through the switch.
S12, determining the congestion state of the current time interval according to the interaction information;
and S13, adjusting the interval time of sending the wake-up signal by each road side unit according to the congestion state.
In this step, after the congestion state of the current time period of the beacon is obtained, the sending interval of the wake-up signal (BST) is adjusted according to the congestion state, specifically: when the road condition is normal, sending the data according to the normal BST interval; when the road is congested, the sending interval of the BST is lengthened, and the awakening times of the charging label, particularly the 5.8G composite card, are reduced, so that the power consumption of the card is reduced, and the service life of the card is prolonged.
In one embodiment, in conjunction with fig. 3, step S12 includes the following steps:
s121, determining position information and time information of the corresponding vehicle in different identification steps according to interaction information of the corresponding road side unit and a charging label of the corresponding vehicle, and calculating speed information of the corresponding vehicle in different identification steps;
s122, calculating the average speed of the vehicle in the current time period according to the plurality of speed information;
and S123, determining the congestion state of the current time interval according to the average speed of the vehicles in the current time interval.
With respect to this embodiment, it is first explained that, for the ETC electronic tag installed on the vehicle, in conjunction with fig. 4A, it requires eight steps to complete the whole identification process by information interaction with the road side unit: 1. the method comprises the steps that a Road Side Unit (RSU) sends a wake-up signal (BST) to an ETC electronic tag and receives a wake-up response signal (VST) returned by the ETC electronic tag; the RSU sends a request signal for reading the vehicle information to the ETC electronic tag and receives a result signal for reading the vehicle information returned by the ETC electronic tag; the RSU sends a request signal for reading ESAM path information to the ETC electronic tag and receives a result signal for reading the ESAM path information returned by the ETC electronic tag; the RSU sends a request signal for writing ESAM path information to the ETC electronic tag and receives a result signal for writing ESAM path information returned by the ETC electronic tag; the RSU sends a request signal for reading the IC card path information to the ETC electronic tag and receives a result signal for reading the IC card path information returned by the ETC electronic tag; the RSU sends a request signal for writing the IC card path information to the ETC electronic tag and receives a result signal for writing the IC card path information returned by the ETC electronic tag; the RSU sends a prompt information setting request Signal (SETMMI) to the ETC electronic tag and receives a result signal of prompt setting returned by the ETC electronic tag; and 8, the RSU sends the event report to the ETC electronic tag, so that the ETC electronic tag releases the link according to the event report.
For a 5.8G composite card (CPC card) on a vehicle, in conjunction with fig. 4B, it requires three steps to complete the entire identification flow by information interaction with the road side unit: the RSU sends a wake-up signal (BST) to the CPC card and receives a wake-up response signal (VST) returned by the CPC card; RSU sends request signal for setting path information to CPC card, and receives result signal for setting path information returned by CPC card; and 3, the RSU sends an event report to the CPC card so that the CPC card releases the link according to the event report.
It should be noted that the roadside unit, to which the phased array antenna is usually mounted, can position the passing vehicle. Furthermore, for the roadside unit having a phased array antenna, in any one of the identification steps, when the toll tag of the vehicle transmits a response signal to the roadside unit having a phased array antenna, the roadside unit acquires the reception time of the signal, and calculates the position of the vehicle according to a side positioning algorithm, thereby acquiring the position information and time information of the vehicle at the identification step. Then, the position difference (distance along the road direction) of the vehicle in the two marking steps is calculated according to the position information corresponding to the front marking step and the rear marking step respectively, and then the difference value of the time information corresponding to the front marking step and the rear marking step is divided, so that the speed information of the vehicle in the corresponding marking step can be calculated.
Further, regarding the plurality of pieces of speed information used in calculating the average speed of the vehicle for the current period, in an alternative embodiment, the plurality of pieces of speed information are a plurality of pieces of speed information of the same vehicle, that is, step S122 is: and calculating the average speed of the vehicle in the current time period according to the speed information of the same vehicle in a plurality of different identification steps. In this embodiment, one vehicle is used as a reference vehicle, and when the vehicle passes through the identification station, the vehicle and the corresponding road side unit perform multiple information interactions (corresponding to multiple identification steps) in the current time period, and each information interaction can acquire a set of position information and time information. Then, a piece of speed information can be calculated according to the position information and the time information which correspond to the two identification steps, an average speed of the vehicle can be calculated according to a plurality of pieces of speed information of the vehicle in a preset time period, and the average speed is used as a basis for judging the congestion state in the current time period. Of course, in another alternative embodiment, the plurality of speed information are a plurality of speed information of different vehicles, for example, after the average speeds corresponding to the plurality of vehicles are obtained, the average speed of the plurality of vehicles in the current time period is further calculated to obtain the average speed of the vehicle in the current time period in step S122, or in the current time period, only one speed information is taken by each vehicle, and then the average value is calculated according to the speed information of the plurality of vehicles to obtain the average speed of the vehicle in the current time period. In this embodiment, the total average speed of a plurality of vehicles is used as a basis for determining the congestion state in the current period.
In one embodiment, step S13 includes:
if the congestion state is very congested, setting the interval time of sending the wake-up signal by each road side unit as a first time value;
if the congestion state is general congestion, setting the interval time of sending the wake-up signal by each road side unit as a second time value;
and if the congestion state is normal driving, setting the interval time of sending the wake-up signal by each road side unit as a third time value, wherein the first time value is greater than the second time value, and the second time value is greater than the third time value.
In a specific example, if the average speed of the vehicle is less than 20km/h, the congestion state is determined to be very congested; if the average speed of the vehicle is within the range of 20-40km/h, determining the congestion state as general congestion; and if the average speed of the vehicle is more than or equal to 40km/h, determining the congestion state as normal running.
In some embodiments, the congestion status may be only two, that is, congestion or normal driving, and the interval time for each rsu to send the wake-up signal is different between the congestion status and the normal driving, and the time interval set in the congestion status is greater than the time interval set in the normal driving status.
Certainly, according to a specific use scenario, the number of congestion states and specific interval time can be flexibly set, in short, the more serious the congestion degree is, the longer the interval time for each road side unit to send the wake-up signal is.
In addition, regarding the determination of the first time value, the second time value and the third time value, the following is described as an example:
for an ETC electronic tag, the distance of a two-way communication area of an antenna is about 40 meters, and for a 5.8G composite card, the distance of the antenna communication area is greater than 40 meters, so that a limit value is calculated according to the small distance of the communication area, and the value of the communication area distance len is 40 meters. The length of the car body is about 4-5 m, and assuming that the car length car _ len is 4.5 m, the time trade _ time for completing one complete identification is 160ms (from the beginning of receiving the VST to the end of receiving the setmi response is the identification time). Assume that BST _ cnt is 3 BST that can wake up the charging tag.
When the road congestion is serious, the speed of the vehicles is assumed to be 20km/h, the distance between the vehicles is at least 5 meters, and the maximum number of vehicles in one lane is as follows: len/(car _ len +5) ═ 4. The number of vehicles on one section is as follows: 4, 4-16, the transaction time for completing 16 vehicles is: 16 trace _ time 2560 ms. The passing time in a 40 meter communication area is: 40m/(20km/h) 7200 ms. Each vehicle has one transaction, and the remaining time for sending the wake-up signal is as follows: 7200 + 2560 ═ 4640ms, so the interval time for sending the wake-up signal is: 4640/16/bst _ cnt is 97 ms.
When the road is generally congested, the speed of the vehicles is assumed to be 40km/h, the distance between the vehicles is at least 10 meters, and the maximum number of vehicles in one lane is as follows: 40/(car _ len +10) ═ 3. The number of vehicles on one section is as follows: 4, 3-12, the transaction time for completing 12 vehicles is: 12 trace _ time 1920 ms. The passing time in a 40 meter communication area is: 40m/(40km/h) 3600 ms. Each vehicle has one transaction, and the remaining time for sending the wake-up signal is as follows: 3600-1920 is 1680ms, therefore, the interval time for sending the wake-up signal is: 1680/12/bst _ cnt is 47 ms.
When the road is normal, the speed of the vehicles is assumed to be 100km/h, the distance between the vehicles is at least 20 meters, and the maximum number of vehicles in one lane is as follows: 40m/(car _ len +20) ═ 2. The number of vehicles on one section is as follows: 4 × 2 ═ 8, time to complete the transaction for 8 vehicles: 8 trace _ time 1280 ms. The passing time in a 40 meter communication area is: 1440ms is 40m/(100 km/h). Each vehicle has one transaction, and the remaining time for sending the wake-up signal is as follows: 1440 and 1280 equals 160ms, so the interval time for sending the wake-up signal is: 160/8/bst _ cnt is 7 ms.
Finally, it should be noted that traffic regulations stipulate that when the vehicle speed is greater than or equal to 100km/h, the safe distance between vehicles is more than 100 meters, and when the vehicle speed is less than 100km/h, the safe distance is at least more than 50 meters, so that there are not so many vehicles in the communication area, and the transaction time is less, therefore, the above situation is only an extreme value estimation.
Fig. 5 is a flowchart of a first embodiment of a path identifying method for identifying a station according to the present invention, where the path identifying method of this embodiment includes the following steps:
s21, the roadside unit broadcasts the wake-up signal discontinuously at the adjusted interval time and receives a wake-up response signal returned by the charging label, wherein the adjusted interval time is obtained according to the sending control method of the wake-up signal of the embodiment;
and S22, the road side unit sends a request signal for setting path information to the charging label and receives a response signal for setting path information returned by the charging label.
And S23, the road side unit sends an event report to the charging label so that the charging label releases a link.
Fig. 6 is a flowchart of a first embodiment of a path identification method for a charging tag according to the present invention, where the path identification method of this embodiment includes the following steps:
s31, receiving an awakening signal discontinuously broadcast by the road side unit at an adjusted interval time, and returning an awakening response signal to the road side unit, wherein the adjusted interval time is acquired according to the method of any one of claims 1-5;
s32, receiving a request signal for setting path information sent by a road side unit, and returning a response signal for setting the path information to the road side unit;
and S33, receiving the event report sent by the road side unit, and releasing the link.
The present invention also constructs an identity station controller including a first processor for implementing the steps of the above-described transmission control method of a wake-up signal when executing a computer program stored in a memory.
The invention also constructs a road side unit comprising a second processor for implementing the steps of the method of path identification as described above for the identification station when executing a computer program stored in a memory.
The invention also provides a toll label comprising a third processor for implementing the steps of the method for path identification of a toll label as described above when executing a computer program stored in a memory. The charging label is a 5.8G composite card or an ETC electronic label.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A method for controlling transmission of a wake-up signal, comprising:
acquiring interactive information of each road side unit of the identification station and a toll tag of a passing vehicle in real time;
determining the congestion state of the current time interval according to the interaction information;
adjusting the interval time of sending the wake-up signal by each road side unit according to the congestion state;
the step of determining the congestion state of the current time interval according to the interaction information comprises the following steps:
determining position information and time information of the corresponding vehicle in different identification steps according to the interaction information of the corresponding road side unit and the charging label of the corresponding vehicle, and calculating speed information of the corresponding vehicle in different identification steps;
calculating the average speed of the vehicle in the current time period according to the plurality of pieces of speed information;
determining the congestion state of the current time period according to the average speed of the vehicle in the current time period;
the step of adjusting the interval time of sending the wake-up signal by each road side unit according to the congestion state comprises the following steps:
calculating the total passing time in the communication area according to the communication area of the road side unit and the average vehicle speed information;
determining the maximum number of passing vehicles in the communication area, and calculating the total identification time of the maximum number of vehicles according to the time for completing one identification;
calculating the total sending time of the awakening signal according to the total passing time and the total identification time;
and calculating the interval time of the wakening signal sent by the road side unit according to the total sending time and the total number of lanes in the communication area.
2. The wake-up signal transmission control method according to claim 1, wherein the step of calculating the average speed of the vehicle for the current period based on the plurality of speed information comprises:
and calculating the average speed of the vehicle in the current time period according to the speed information of the same vehicle in a plurality of different identification steps.
3. The wake-up signal transmission control method according to claim 1, wherein the step of calculating the average speed of the vehicle for the current period based on the plurality of speed information comprises:
and calculating an average value of the speed information of the plurality of vehicles in the current time period to obtain the average speed of the vehicles in the current time period.
4. The wake-up signal transmission control method according to any one of claims 1 to 3, wherein the step of adjusting the interval time for each roadside unit to transmit the wake-up signal according to the congestion state comprises:
if the congestion state is very congested, setting the interval time of sending the wake-up signal by each road side unit as a first time value;
if the congestion state is general congestion, setting the interval time of sending the wake-up signal by each road side unit as a second time value;
and if the congestion state is normal driving, setting the interval time of sending the wake-up signal by each road side unit as a third time value, wherein the first time value is greater than the second time value, and the second time value is greater than the third time value.
5. A path identifying method for identifying a station, comprising:
the roadside unit broadcasts the wake-up signal intermittently at an adjusted interval time, and receives a wake-up response signal returned by a charging tag, wherein the adjusted interval time is obtained according to the method of any one of claims 1-4;
the road side unit sends a request signal for setting path information to the charging label and receives a response signal for setting path information returned by the charging label;
and the road side unit sends an event report to the charging label so that the charging label releases a link.
6. A method for identifying a path of a charging label is characterized by comprising the following steps:
receiving a wake-up signal discontinuously broadcast by a road side unit at an adjusted interval time, and returning a wake-up response signal to the road side unit, wherein the adjusted interval time is obtained according to the method of any one of claims 1 to 4;
receiving a request signal for setting path information sent by a road side unit, and returning a response signal for setting the path information to the road side unit;
and receiving an event report sent by the road side unit, and releasing the link.
7. An identity station controller, comprising a first processor for implementing the steps of the method of controlling the transmission of a wake-up signal according to any of claims 1 to 4 when executing a computer program stored in a memory.
8. A road side unit comprising a second processor for implementing the steps of the method of identifying a path of a station of claim 5 when executing a computer program stored in a memory.
9. A charging tag, characterized in that it comprises a third processor for implementing the steps of the path identification method of a charging tag according to claim 6 when executing a computer program stored in a memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020602.3A CN107886584B (en) | 2017-10-27 | 2017-10-27 | Wake-up signal sending control method, controller, road side unit and toll collection tag |
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| CN201711020602.3A CN107886584B (en) | 2017-10-27 | 2017-10-27 | Wake-up signal sending control method, controller, road side unit and toll collection tag |
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| CN107886584A CN107886584A (en) | 2018-04-06 |
| CN107886584B true CN107886584B (en) | 2020-08-18 |
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| CN109086638A (en) * | 2018-06-08 | 2018-12-25 | 深圳成谷科技有限公司 | A kind of method and CPC card for saving CPC card power consumption in traffic congestion |
| CN110473425A (en) * | 2019-07-22 | 2019-11-19 | 深圳市金溢科技股份有限公司 | Method, parking charging method and the relevant device of parking management |
| CN110660232A (en) * | 2019-09-27 | 2020-01-07 | 深圳市金溢科技股份有限公司 | Readable storage medium, method and system for realizing traffic scheduling and equipment thereof |
| CN111047724B (en) * | 2019-11-11 | 2021-12-28 | 深圳市金溢科技股份有限公司 | Readable storage medium, path identification system, vehicle-mounted unit and transaction method |
| CN110956817B (en) * | 2019-11-29 | 2021-12-07 | 深圳市金溢科技股份有限公司 | Vehicle-mounted unit awakening method, device and system |
| CN111161556B (en) * | 2019-12-24 | 2021-09-07 | 北京握奇数据股份有限公司 | Highway traffic jam prompting method and system based on OBU |
| CN111489548A (en) * | 2020-02-28 | 2020-08-04 | 广东中科臻恒信息技术有限公司 | Dynamic road traffic information acquisition method and system, and storage medium |
| CN113496599A (en) * | 2020-04-03 | 2021-10-12 | 上海搜林信息技术有限公司 | Traffic control system based on ETC antenna |
| CN112203255B (en) * | 2020-09-11 | 2024-04-09 | 北京万集科技股份有限公司 | Control method and system of vehicle-mounted unit, storage medium and electronic device |
| CN114173289B (en) * | 2020-09-11 | 2023-04-14 | 北京聚利科技有限公司 | Road side unit control method, device, equipment and computer readable storage medium |
| CN112203256B (en) * | 2020-09-11 | 2024-03-22 | 北京万集科技股份有限公司 | Control method and device of vehicle-mounted unit, storage medium and electronic device |
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| JPH10308000A (en) * | 1997-05-09 | 1998-11-17 | Nissan Motor Co Ltd | Vehicle controller |
| CN103258428B (en) * | 2013-04-24 | 2015-07-29 | 交通运输部公路科学研究所 | A kind of method realizing traffic behavior collection based on ETC equipment |
| CN103730014B (en) * | 2013-10-29 | 2017-03-08 | 深圳市金溢科技股份有限公司 | A kind of statistical method of traffic flow based on ambiguous path identifying system and system |
| CN203630824U (en) * | 2013-12-13 | 2014-06-04 | 花满春 | Bidirectional ambiguous path identification system based on time-division frequency-division multiplexing technology |
| CN104574544B (en) * | 2014-12-31 | 2017-04-26 | 深圳市金溢科技股份有限公司 | Method for communicating with OBU and RSU |
| CN106571037A (en) * | 2016-11-15 | 2017-04-19 | 同济大学 | Station detection technology-based expressway real-time road condition monitoring method |
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