CN102819872B - Curved road side method and device for road collection - Google Patents

Abstract

The invention relates to a curved road side method and device for road collection. The method comprises the following steps: determining the effective communication area of a road side unit (RSU) according to the shape of the lane on the highway; generating a corresponding communication area function f (x, y, z) according to the effective communication area; sending broadcast signals to the curved road, and receiving the reply message of an on board unit (OBU); generating an OBU position function (xo, yo, zo) according to the reply message of the OBU; judging whether the OBU is in the corresponding effective communication area of the RSU or not according to the position function (xo, yo, zo) and the communication area, wherein if the OBU is in the corresponding effective communication area of the RSU, the RSU communicates with the OBU, and if OBU is not in the corresponding effective communication area of the RSU, the RSU refuses to communicate with the OBU. Due to the adoption of the method and the device, the problem on the curved road communication of the RSU is solved, and the curved road collection transaction of an electronic toll collection (ETC) system is realized.

Description

A kind of bend trackside method and device for highway toll

Technical field

The present invention relates to the electronic toll system field of highway, particularly relate to the trackside technology in E-payment system, is a kind of bend trackside method and device for highway toll concretely.

Background technology

Along with developing rapidly of highway electric Fare Collection System (ETC:Electronic Toll Collection), ETC application constantly increases, and the performance requirements such as efficient stable of ETC system are also being improved.As shown in Figure 1, be apparatus for measuring road (RSU) communication zone figure in existing ETC system.In Fig. 1, three RSU(10a, 10b, 10c) be arranged on the framework 20 across highway three RSU(10a, 10b, 10c) resulting communication zone is the elliptic region in Fig. 1.Yet existing RSU and communication zone thereof are all directed to straight way (that is, track is straight line).And cannot carry out trackside communication and road toll transaction for bend (that is, track is camber line or the line of turning back).

Summary of the invention

The embodiment of the present invention provides a kind of bend trackside method and device for highway toll, to solve the bend communication issue of RSU.

One of object of the present invention is, a kind of bend trackside method for highway electronic charging is provided, and the method comprises: the efficient communication region of determining apparatus for measuring road RSU according to the shape of bend; According to efficient communication region, generate corresponding communication zone decision function f (x, y, z); To bend, send broadcast singal, and receive the return information of car-mounted device OBU; According to the return information of OBU, generate OBU function of position OBU (x _o, y _o, z _o); According to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

One of object of the present invention is, a kind of bend apparatus for measuring road for highway electronic charging is provided, and this device comprises: decision function storage unit, for storing the bend efficient communication region corresponding communication zone decision function f (x, y, z) of RSU; Signal sends receiving element, for sending broadcast singal to highway, and receives the return information of car-mounted device OBU; Function of position generation unit, for generating OBU function of position OBU (x according to the return information of OBU _o, y _o, z _o); Connection setup unit, for according to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

One of object of the present invention is, a kind of bend apparatus for measuring road for highway electronic charging is provided, and this device comprises: efficient communication region setup unit, for determine the efficient communication region of apparatus for measuring road RSU according to the shape of bend; Decision function generation unit, for generating corresponding communication zone decision function f (x, y, z) according to efficient communication region; Signal sends receiving element, for sending broadcast singal to bend, and receives the return information of car-mounted device OBU; Function of position generation unit, for generating OBU function of position OBU (x according to the return information of OBU _o, y _o, z _o); Connection setup unit, for according to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

Beneficial effect of the present invention is, by determining the efficient communication region of the different geometries in bend, RSU is realized to be communicated the OBU travelling on bend, also can be according to actual conditions, change at any time shape and the size of communication zone, solve the communication issue of RSU in bend, thereby realized the bend charge transaction of ETC system.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is track and the communication zone schematic diagram of the E-payment system of prior art;

Fig. 2 is that the present invention is for the bend trackside method flow diagram of highway electronic charging;

Fig. 3 is bend and the communication zone schematic diagram of E-payment system of the present invention;

Fig. 4 is RSU communication zone control flow chart of the present invention;

Fig. 5 is rectangle communication zone schematic diagram of the present invention;

Fig. 6 is the oval communication zone schematic diagram of the present invention;

Fig. 7 is the present invention's annular communication zone schematic diagram;

Fig. 8 is double square communication zone schematic diagram of the present invention;

Fig. 9 is bielliptic(al) shape communication zone schematic diagram of the present invention;

Figure 10 is cuboid communication zone schematic diagram of the present invention;

Figure 11 is spherical communication zone schematic diagram of the present invention;

Figure 12 is that the present invention is for the structured flowchart of the apparatus for measuring road of highway electronic charging;

Figure 13 is the schematic block circuit diagram that the present invention adopts the RSU of DBF location;

Figure 14 is that the present invention is for the structured flowchart of the apparatus for measuring road of highway electronic charging;

Figure 15 is the schematic block circuit diagram that the present invention adopts the RSU of phased array location;

Figure 16 is the annular communication zone schematic diagram of RSU on bend of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment 1

As shown in Figure 2, the bend trackside method for highway electronic charging of the present embodiment comprises the following steps: the efficient communication region (step S101) of determining apparatus for measuring road RSU according to the shape of bend; According to efficient communication region, generate corresponding communication zone decision function (step S102), the expression formula of communication zone decision function is f (x, y, z); To bend, send broadcast singal and receive the return information (step S103) of car-mounted device OBU; According to the return information of OBU, generate OBU function of position (step S104), the expression formula of OBU function of position is OBU (x _o, y _o, z _o); According to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refuses to communicate by letter with OBU (step S105).

As shown in Figure 3, the bend trackside method for highway electronic charging of the present embodiment adopts digital synthesis mode, can realize the communication zone of arbitrary shape, also can, according to actual conditions, change at any time region shape and size.Can utilize communication zone to control and obtain arc communication zone in Fig. 3, solve the bend communication issue of RSU.The bend trackside method for highway electronic charging of the present embodiment is the digital communication Region control scheme being based upon on the pinpoint basis of OBU.Framework 200 is arranged on bend place, and RSU100a and RSU 100b are arranged on framework 200.RSU100a and RSU 100b on bend, form arc (or: annular) efficient communication region.Also can form the efficient communication region of other geometric configuratioies such as rectangle, ellipse.

If effectively communication zone decision function is:

f(x,y,z) （1）

The function of formula (1) can be three-dimensional function, can be also two dimensional surface function, can also be one dimension linear function, according to efficient communication to be determined region, determines.RSU adopts radiolocation technology, and the function of position of obtaining OBU is:

OBU(x _o,y _o,z _o) （2）

Realize the pinpoint method of OBU a variety of, mainly comprise it being location, the location based on time measurement based on signal intensity and the location of measuring based on deflection.By in OBU coordinate substitution decision function f (x, y, z) function, judgement f (x _o, y _o, z _o) whether meet regional determination function condition (for example, whether the position of OBU is in efficient communication region), if meet the condition of regional determination function, RSU and OBU communicate or conclude the business, if the position at OBU place does not meet the condition of regional determination function, RSU refusal is communicated by letter with this OBU.

As shown in Figure 4, the concrete control flow of RSU communication zone comprises:

1) according to the shape of bend, determine effective communication zone, and given area decision function f (x, y, z).

2) RSU sends broadcast singal to bend, and whether search has OBU to exist.

3), when not having OBU to reply, get back to the 2nd step and continue to send broadcast singal.

4) when having OBU to reply, search OBU, RSU receives the return information of OBU, and the microwave signal sending according to OBU is accurately located OBU.

5) RSU is updated to the positional information of OBU in regional determination function f (x, y, z), according to f (x _o, y _o, z _o) judgement OBU (x _o, y _o, z _o) whether in effective coverage.

6) if OBU not in effective communication zone, RSU refusal is communicated by letter with this OBU, new search OBU lays equal stress on.

7) if OBU in effective communication zone, RSU and OBU establish a communications link, and carry out proper communication or transaction with OBU.

8), after completing with OBU communication interaction, RSU turns back to the 2nd step and resends broadcast singal search OBU.

As shown in Figure 5, according to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is rectangle communication zone.Rectangle communication zone decision function is:

$f(x,y):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\end{array}\right.---\left(3\right)$

Wherein, rectangle communication zone size is Lx * Ly, (x _r, y _r) be rectangle communication zone center point coordinate.When rectangle communication zone centre coordinate is that (0, in the time of Ly/2), rectangle communication zone as shown in Figure 5.

As shown in Figure 6, according to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is oval communication zone.Wherein, oval communication zone decision function is:

$f(x,y):\frac{{(x-x_r)}^2}{a^2}+\frac{{(y-y_r)}^2}{b^2}<1---\left(4\right)$

Wherein, a, b are oval two-semiaxle length, (x _r, y _r) be elliptic region center point coordinate.When elliptical center point is for (0, in the time of b), oval communication zone as shown in Figure 6.

As shown in Figure 7, according to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is annular communication zone.Wherein, on bend, the desirable communication zone of RSU is annular.If annular communication zone two radius is respectively R1, R2(R1<R2), annular communication zone angle is α, b(α <b).This annular region decision function is:

$f(x,y):\left\{\begin{array}{c}{R}_1^2<x^2+y^2<R_2^2\\ \tan \left(a\right)<\frac{y}{x}<\tan \left(b\right)\end{array}\right.---\left(5\right)$

Only provide three kinds of communication zone examples above, in plane, can also form the communication zone of other arbitrary shapes, as circle, rhombus, triangle etc.Except the communication zone situation of above-described two kinds of single shapes, communication zone can also be comprised of a plurality of zonules, double square communication zone as shown in Figure 8 and the bielliptic(al) communication zone shown in Fig. 9.

The same with plane communication zone, space communtication region also has a lot, rectangular parallelepiped communication zone for example, spheroid communication zone etc.

As shown in figure 10, according to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is rectangular parallelepiped communication zone.Rectangular parallelepiped communication zone decision function is:

$f(x,y,z):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\\ |z-z_r|<\frac{\mathrm{Lz}}{2}\end{array}\right.---\left(6\right)$

Wherein, rectangular parallelepiped communication zone size is Lx * Ly * Lz, (x _r, y _r, z _r) be rectangular parallelepiped communication zone center point coordinate.When rectangular parallelepiped communication zone centre coordinate is (0, Ly/2, Lz/2), rectangular parallelepiped communication zone as shown in figure 10.

As shown in figure 11, according to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is spheroid communication zone.Spheroid communication zone decision function is:

f(x,y,z):(x-x _r) ²+(y-y _r) ²+(z-z _r) ²＜R ² （7）

Wherein, R is spheroid communication zone radius, (x _r, y _r, z _r) be spheroid communication zone center point coordinate.When central point is initial point, spheroid region as shown in figure 11.

In three dimensions, except the communication zone of rectangular parallelepiped, spheroid form, also, just like the communication zone of other shapes such as heap body, spheroid, as long as first obtain decision function, OBU coordinate is updated in decision function and just can determines whether to communicate with this OBU.

Rectangle communication zone decision function, oval communication zone decision function, annular communication zone decision function, cuboid communication zone decision function and spherical communication zone decision function that storage is described.

Embodiment 2

As shown in figure 12, the bend apparatus for measuring road for highway electronic charging of the present embodiment comprises: decision function storage unit 101, for storing the communication zone decision function f (x, y, z) that effective communication zone is corresponding; Signal sends receiving element 102, for sending broadcast singal to bend, and receives the return information of car-mounted device OBU; Function of position generation unit 103, for generating OBU function of position OBU (x according to the return information of OBU _o, y _o, z _o); Connection setup unit 104, for according to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

The communication zone decision function of decision function storage unit 101 storages comprises: rectangle communication zone decision function, oval communication zone decision function, annular communication zone decision function, cuboid communication zone decision function and/or spherical communication zone decision function.

As shown in figure 13, the bend apparatus for measuring road for highway electronic charging of the present embodiment can be the RSU based on DBF location.This RSU has positioning function, can according to actual conditions, change arbitrarily the shape of communication zone, and this RSU comprises: transaction modules, locating module and control module form.Transaction modules comprises: transaction antenna, RF transmit-receive circuit, realize reception and the transmission of microwave signal, and to carry out signal mutual with OBU.Locating module comprises: array antenna, down coversion, AD signal sampling and processing unit, by array antenna received microwave signal, obtain the locating result information of OBU.Control module comprises: controller, RAM and FLASH, for completing transaction and positioning control, communicate with driveway controller simultaneously.In Figure 13, FLASH, RAM form decision function storage unit 101, for depositing predefined efficient communication regional determination function f (x, y, z); Transaction antenna, RF transmit-receive circuit form signal and send receiving element 102, for to OBU transmitted signal and receive the return information of OBU, realize mutual with OBU; Array antenna, down coversion, AD gather, signal processing unit forms function of position generation unit 103, for receiving the microwave signal of OBU and obtaining the positional information OBU (x of OBU _o, y _o, z _o); Controller, communication interface etc. form connection setup unit 104, according to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

By location, generate the communication zone of arbitrary shape, can thoroughly solve monkey chatter and follow the problems such as car.

Embodiment 3

As shown in figure 14, the apparatus for measuring road for highway electronic charging of the present embodiment comprises: efficient communication region setup unit 201, for determine the efficient communication region of apparatus for measuring road RSU according to the shape of bend; Decision function generation unit 202, for generating corresponding communication zone decision function f (x, y, z) according to described efficient communication region; Signal sends receiving element 203, for sending broadcast singal to bend, and receives the return information of car-mounted device OBU; Function of position generation unit 204, for generating OBU function of position OBU (x according to the return information of described OBU _o, y _o, z _o); Connection setup unit 205, for according to described function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) whether the described OBU of judgement is in the efficient communication region of corresponding RSU, if described OBU is in the efficient communication region of corresponding RSU, described RSU and described OBU establish a communications link, if described OBU is not in the efficient communication region of corresponding RSU, described RSU refusal is communicated by letter with described OBU.

Efficient communication region setup unit 201, determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is rectangle communication zone; Decision function generation unit 202, generates corresponding rectangle communication zone mathematical function formula (3) according to rectangle communication zone.

Efficient communication region setup unit 201, determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is oval communication zone; Decision function generation unit 202, generates corresponding oval communication zone mathematical function formula (4) according to oval communication zone.

Efficient communication region setup unit 201, determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is annular communication zone; Decision function generation unit 202, generates corresponding annular communication zone mathematical function formula (5) according to described annular communication zone.

Efficient communication region setup unit 201, determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is cuboid communication zone; Decision function generation unit 202, generates corresponding cuboid communication zone mathematical function formula (6) according to cuboid communication zone.

Efficient communication region setup unit 201, determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is spherical communication zone; Decision function generation unit 202, generates corresponding spherical communication zone mathematical function formula (7) according to described spherical communication zone.

As shown in figure 15, the apparatus for measuring road for highway electronic charging of the present embodiment can be the RSU based on phased array location.This RSU has positioning function, can according to actual conditions, change arbitrarily the shape of communication zone, and this RSU comprises: transaction modules, locating module and control module form.Transaction modules comprises: transaction antenna, RF transmit-receive circuit, realize reception and the transmission of microwave signal, and to carry out signal mutual with OBU.Locating module comprises: array antenna, phase-shifter, combiner and signal processing unit, by array antenna received microwave signal, obtain the locating result information of OBU.Control module comprises: controller, RAM and FLASH, for completing transaction and positioning control, communicate with driveway controller simultaneously.

In Figure 15, driveway controller forms efficient communication region setup unit 201 and decision function generation unit 202, can set various RSU efficient communications region according to different track shapes, generates corresponding efficient communication regional determination function f (x, y, z); Transaction antenna, RF transmit-receive circuit form signal and send receiving element 203, for to OBU transmitted signal and receive the return information of OBU, realize mutual with OBU; Array antenna, down coversion, AD gather, signal processing unit forms function of position generation unit 204, for receiving the microwave signal of OBU and obtaining the positional information OBU (x of OBU _o, y _o, z _o); Controller, communication interface etc. form connection setup unit 205, according to function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) judge that OBU is whether in the efficient communication region of corresponding RSU, if OBU is in the efficient communication region of corresponding RSU, RSU and OBU establish a communications link, if OBU is not in the efficient communication region of corresponding RSU, RSU refusal is communicated by letter with OBU.

By location, generate the communication zone of arbitrary shape, can thoroughly solve monkey chatter and follow the problems such as car.

The communication instance of annular communication zone during as shown in figure 16, for the bend of the present embodiment RSU.Wherein, track is bend, utilizes the RSU of the present embodiment to carry out ETC charge on this bend.In Figure 11, there are two bends arranged side by side, one of them is ETC track, another is neighboring trace.ETC is equipped with RSU on track, and its desirable communication zone is annular region, as dash area in Figure 16.If adopt general technology to control the communication zone of RSU, neighboring trace vehicle (OBU2) also will be coated within the scope of the communication zone of RSU, so OBU2 also communicates transaction with RSU, and charge makes the mistake.If adopt the RSU communication zone formation method of the present embodiment, obtain annular communication zone decision function, when RSU receives the reply of OBU2, orient the position of OBU2, the positional information of OBU2 is updated in decision function, find OBU2 (dash area) not in annular region, therefore refusal communicates with OBU2, has avoided false transaction.In Figure 16, OBU1 is in annular region, so RSU and OBU1 proper communication.

The embodiment of the present invention is by determining the efficient communication region of the different geometries in bend, RSU is realized to be communicated the OBU travelling on bend, also can be according to actual conditions, change at any time shape and the size of communication zone, solve the communication issue of RSU in bend, thereby realized the bend charge transaction of ETC system.

In the present invention, applied specific embodiment principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims (14)

1. for a bend trackside method for highway electronic charging, it is characterized in that, described method comprises:

According to the shape of bend, determine the efficient communication region of apparatus for measuring road RSU;

According to described efficient communication region, generate corresponding communication zone decision function f (x, y, z);

To described bend, send broadcast singal, and receive the return information of car-mounted device OBU;

According to the return information of described OBU, generate OBU function of position OBU (x _o, y _o, z _o);

According to described function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) whether the described OBU of judgement is in the efficient communication region of corresponding RSU, if described OBU is in the efficient communication region of corresponding RSU, described RSU and described OBU establish a communications link, if described OBU is not in the efficient communication region of corresponding RSU, described RSU refusal is communicated by letter with described OBU.

2. method according to claim 1, is characterized in that, the described shape according to bend determines that the efficient communication region of apparatus for measuring road RSU comprises:

According to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is annular communication zone;

According to described annular communication zone, generate annular communication zone decision function:

$f(x,y):\left\{\begin{array}{c}{R}_1^2<x^2+y^2<R_2^2\\ \tan \left(a\right)<\frac{y}{x}<\tan \left(b\right)\end{array}\right.,$

Wherein, the two radius of described annular communication zone is respectively R1, R2, R1<R2 wherein, and described annular communication zone angle is α, b, wherein α <b;

The annular communication zone decision function that storage is described.

3. method according to claim 1, is characterized in that, the described shape according to bend determines that the efficient communication region of apparatus for measuring road RSU comprises:

According to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is rectangle communication zone;

According to described rectangle communication zone, generate rectangle communication zone decision function:

$f(x,y):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\end{array}\right.,$

Wherein, the area of described rectangle communication zone is Lx * Ly, and the center point coordinate of described rectangle communication zone is (x _r, y _r);

The rectangle communication zone decision function that storage is described.

4. method according to claim 1, is characterized in that, the described shape according to bend determines that the efficient communication region of apparatus for measuring road RSU comprises:

According to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is oval communication zone;

According to described oval communication zone, generate oval communication zone decision function:

$f(x,y):\frac{{(x-x_r)}^2}{a^2}+\frac{{(y-y_r)}^2}{b^2}<1,$

Wherein, the two-semiaxle length that a, b are oval communication zone, (x _r, y _r) be the center point coordinate of oval communication zone;

The oval communication zone decision function that storage is described.

5. method according to claim 1, is characterized in that, the described shape according to bend determines that the efficient communication region of apparatus for measuring road RSU comprises:

According to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is cuboid communication zone;

According to described cuboid communication zone, generate cuboid communication zone decision function:

$f(x,y,z):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\\ |z-z_r|<\frac{\mathrm{Lz}}{2}\end{array}\right.,$

Wherein, the volume of described cuboid communication zone is Lx * Ly * Lz, (x _r, y _r, z _r) be the center point coordinate of described cuboid communication zone;

The cuboid communication zone decision function that storage is described.

6. method according to claim 1, is characterized in that, the described shape according to bend determines that the efficient communication region of apparatus for measuring road RSU comprises:

According to the shape of bend, determine that the efficient communication region of apparatus for measuring road RSU is spherical communication zone;

According to described spherical communication zone, generate spherical communication zone decision function:

f(x,y,z):(x-x _r) ²+(y-y _r) ²+(z-z _r) ²<R ²，

Wherein, R is the radius of described spherical communication zone, (x _r, y _r, z _r) be the center point coordinate of described spherical communication zone;

The spherical communication zone decision function that storage is described.

7. for a bend apparatus for measuring road for highway electronic charging, it is characterized in that, described device comprises:

Decision function storage unit, for storing the bend efficient communication region corresponding communication zone decision function f (x, y, z) of RSU;

Signal sends receiving element, for the highway to described, sends broadcast singal, and receives the return information of car-mounted device OBU;

Function of position generation unit, for generating OBU function of position OBU (x according to the return information of described OBU _o, y _o, z _o);

Connection setup unit, for according to described function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) whether the described OBU of judgement is in the efficient communication region of corresponding RSU, if described OBU is in the efficient communication region of corresponding RSU, described RSU and described OBU establish a communications link, if described OBU is not in the efficient communication region of corresponding RSU, described RSU refusal is communicated by letter with described OBU.

8. device according to claim 7, it is characterized in that, the communication zone decision function of described decision function cell stores comprises: rectangle communication zone decision function, oval communication zone decision function, annular communication zone decision function, cuboid communication zone decision function and/or spherical communication zone decision function.

9. for a bend apparatus for measuring road for highway electronic charging, it is characterized in that, described device comprises:

Efficient communication region setup unit, for determining the efficient communication region of apparatus for measuring road RSU according to the shape of bend;

Decision function generation unit, for generating corresponding communication zone decision function f (x, y, z) according to described efficient communication region;

Signal sends receiving element, for the bend to described, sends broadcast singal, and receives the return information of car-mounted device OBU;

Function of position generation unit, for generating OBU function of position OBU (x according to the return information of described OBU _o, y _o, z _o);

Connection setup unit, for according to described function of position OBU (x _o, y _o, z _o) and communication zone decision function f (x, y, z) whether the described OBU of judgement is in the efficient communication region of corresponding RSU, if described OBU is in the efficient communication region of corresponding RSU, described RSU and described OBU establish a communications link, if described OBU is not in the efficient communication region of corresponding RSU, described RSU refusal is communicated by letter with described OBU.

10. device according to claim 9, is characterized in that, described efficient communication region setup unit determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is annular communication zone;

Described decision function generation unit, generates corresponding annular communication zone decision function according to described annular communication zone:

$f(x,y):\left\{\begin{array}{c}{R}_1^2<x^2+y^2<R_2^2\\ \tan \left(a\right)<\frac{y}{x}<\tan \left(b\right)\end{array}\right.,$

Wherein, the two radius of described annular communication zone is respectively R1, R2, R1<R2 wherein, and described annular communication zone angle is α, b, wherein α <b;

Described device also comprises decision function storage unit, for storing described annular communication zone decision function.

11. devices according to claim 9, is characterized in that, described efficient communication region setup unit determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is rectangle communication zone;

Described decision function generation unit, generates corresponding rectangle communication zone decision function according to described rectangle communication zone:

$f(x,y):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\end{array}\right.,$

Wherein, the area of described rectangle communication zone is Lx * Ly, and the center point coordinate of described rectangle communication zone is (x _r, y _r);

Described device also comprises decision function storage unit, for storing described rectangle communication zone decision function.

12. devices according to claim 9, is characterized in that, described efficient communication region setup unit determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is oval communication zone;

Described decision function generation unit, generates corresponding oval communication zone decision function according to described oval communication zone:

$f(x,y):\frac{{(x-x_r)}^2}{a^2}+\frac{{(y-y_r)}^2}{b^2}<1,$

Wherein, the two-semiaxle length that a, b are oval communication zone, (x _r, y _r) be the center point coordinate of oval communication zone;

Described device also comprises decision function storage unit, for storing described oval communication zone decision function.

13. devices according to claim 9, is characterized in that, described efficient communication region setup unit determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is cuboid communication zone;

Described decision function generation unit, generates corresponding cuboid communication zone decision function according to described cuboid communication zone:

$f(x,y,z):\left\{\begin{array}{c}|x-x_r|<\frac{\mathrm{Lx}}{2}\\ |y-y_r|<\frac{\mathrm{Ly}}{2}\\ |z-z_r|<\frac{\mathrm{Lz}}{2}\end{array}\right.,$

Wherein, the volume of described cuboid communication zone is Lx * Ly * Lz, (x _r, y _r, z _r) be the center point coordinate of described cuboid communication zone;

Described device also comprises decision function storage unit, for storing described cuboid communication zone decision function.

14. devices according to claim 9, is characterized in that, described efficient communication region setup unit determines that according to the shape of bend the efficient communication region of apparatus for measuring road RSU is spherical communication zone;

Described decision function generation unit, generates corresponding spherical communication zone decision function according to described spherical communication zone:

f(x,y,z):(x-x _r) ²+(y-y _r) ²+(z-z _r) ²<R ²，

Wherein, R is the radius of described spherical communication zone, (x _r, y _r, z _r) be the center point coordinate of described spherical communication zone;

Described device also comprises decision function storage unit, for storing described spherical communication zone decision function.