CN104714210A - Method for adopting four antennae to perform key positioning - Google Patents
Method for adopting four antennae to perform key positioning Download PDFInfo
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- CN104714210A CN104714210A CN201310692876.2A CN201310692876A CN104714210A CN 104714210 A CN104714210 A CN 104714210A CN 201310692876 A CN201310692876 A CN 201310692876A CN 104714210 A CN104714210 A CN 104714210A
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- antenna
- key
- rssi
- condition
- trunk
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/12—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
Abstract
The invention relates to a method for adopting four antennae to perform key positioning. Only four antennae are adopted to achieve position judgment of an intelligent key by taking a key position judgment strategy. The four antennae include a front antenna, a trunk antenna, a left antenna and a right antenna. The installing mode of the four antennae is that the front antenna is arranged on the central axis of the vehicle body at a gear position, the trunk antenna is arranged on the central axis of the vehicle body on the back side of back-row seats, and the left antenna and the right antenna are symmetrically arranged at a B-column position with respect to the central axis of the vehicle body. The key position judgment strategy is that a controller acquires signal intensity measured by the intelligent key, of the front antenna, the trunk antenna, the left antenna and the right antenna, and determines the position of the key according to judgment conditions. Compared with the prior art, the method for adopting the four antennae to perform key positioning has the advantages of being low in cost, convenient to install, low in energy consumption and the like.
Description
Technical field
The present invention relates to a kind of key positioner method, especially relate to a kind of method adopting four antennas to carry out key positioner.
Background technology
Intelligence enters start up system (PEPS) without key and is widely used in automotive field.How correct the position of judgement Intelligent key be wherein one of PEPS system difficult problem to be solved.
Under normal circumstances, PEPS system needs the antenna of 6 or more to judge the position of Intelligent key, this mechanism not only adds the cost of whole system, and host side needs the low frequency supporting at least 6 antennas to send when carrying out key position and judging, Intelligent key also needs the low-frequency data of reception 6 antennas simultaneously, and measure the low frequency field intensity of at least 6 times, this just increases the kwh loss of host side and Intelligent key end simultaneously.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of method that cost is low, easy for installation, the employing of low energy consumption four antennas carry out key positioner is provided.
Object of the present invention can be achieved through the following technical solutions:
Adopt four antennas to carry out a method for key positioner, it is characterized in that, use only four antennas realize Intelligent key location determination by key position decision plan.
Four described antennas are respectively front antenna, boot antenna, left antenna and right antenna.
The installation site of four antennas is respectively: described front antenna is located on the axis of the vehicle body of gear position, described boot antenna is located on the axis of the vehicle body on rear side of back seat, described left antenna and right antenna are located at B post position about the axis symmetry of vehicle body, and the distance of each antenna and vehicle body metallic magnetism is greater than more than 2cm.
Described key position decision plan is: the signal intensity of antenna, boot antenna, left antenna and right antenna before controller collection is obtained by Intelligent key measurement, determines the position of key according to Rule of judgment, specific as follows:
41) if meet (condition_left_A) & & (! Condition_right_A) & & (! Condition_front_A) & & (! Condition_trunk_A), then key is positioned at vehicle body leftmost outer;
42) if meet (condition_right_A) & & (! Condition_left_A) & & (! Condition_front_A) & & (! Condition_trunk_A), then key is positioned at vehicle body rightmost outer;
43) if meet (condition_Trunk_B) & & (! Condition_left_B) & & (! Condition_right_B) & & (! Condition_trunk_A), then key is positioned at outside tail of the body;
44) if meet (condition_front_A) || ((condition_left_A) & & (condition_right_A)) || (condition_trunk_A), then key is positioned at interior of body;
Wherein each symbol definition is as follows:
Condition_left_A is that the left antenna RSSI value that key measurement obtains is greater than RSSI_LeR_A;
! Condition_left_A is that the left antenna RSSI value that key measurement obtains is less than RSSI_Left_A;
Condition_left_B is that the left antenna RSSI value that key measurement obtains is greater than RSSI_Left_B;
! Condition_left_B is that the left antenna RSSI value that key measurement obtains is less than RSSI_Left_B;
Condition_right_A is that the right antenna RSSI value that key measurement obtains is greater than RSSI_Right_A;
! Condition_right_A is that the right antenna RSSI value that key measurement obtains is less than RSSI_Right_A;
Condition_right_B is that the right antenna RSSI value that key measurement obtains is greater than RSSI_Right_B;
! Condition_right_B is that the right antenna RSSI value that key measurement obtains is less than RSSI_Right_B;
Condition_front_A is that the front antenna RSSI value that key measurement obtains is greater than RSSI_Front_A;
! Condition_front_A is that the front antenna RSSI value that key measurement obtains is less than RSSI_Front_A;
Condition_trunk_A is that the boot antenna RSSI value that key measurement obtains is greater than RSSI_Trunk_A;
! Condition_trunk_A is that the boot antenna RSSI value that key measurement obtains is less than RSSI_Trunk_A;
Condition_trunk_B is that the boot antenna RSSI value that key measurement obtains is greater than RSSI_Trunk_B;
! Condition_trunk_B is that the boot antenna RSSI value that key measurement obtains is less than RSSI_Trunk_B;
& & is logical and; || be logical OR; ! For logic NOT;
RSSI_Left_A is key in the RSSI value of the left antenna obtained for border circular areas boundary measurement that the center of circle take R1 as radius with left antenna;
The RSSI value of the RSSI_Right_A right antenna that to be key obtain in the border circular areas boundary measurement of to take right antenna as the center of circle with R1 be radius;
The RSSI value of antenna before the border circular areas boundary measurement of RSSI_Front_A is the former antenna of key to be the center of circle with R2 be radius obtains;
RSSI_Trunk_A is the RSSI value of the boot antenna that key obtains for the border circular areas boundary measurement of case antenna to be the center of circle be radius afterwards with R3;
RSSI_Left_B is key in the RSSI value of the left antenna obtained for border circular areas boundary measurement that the center of circle take R4 as radius with left antenna;
The RSSI value of the RSSI_Right_B right antenna that to be key obtain in the border circular areas boundary measurement of to take right antenna as the center of circle with R4 be radius;
RSSI_Trunk_B is the RSSI value of the boot antenna that key obtains for the border circular areas boundary measurement of case antenna to be the center of circle be radius afterwards with R5;
Wherein, R1 equals the vertical range of left antenna to right front car door; R2 equals the distance of front antenna to left front car door; R3 equals the distance of boot antenna to trunk door; R4 equals the distance of afterbody on the left of left antenna to vehicle body; R5 equals the distance of rear-box antenna to Che Wai effective coverage, boot side boundary.
Compared with prior art, the present invention has the following advantages:
1, employ less antenna, thus provide cost savings;
2, usual six antenna PEPS system can by astronomical cycle in door handle, and door handle space is less, thus increase the difficulty of design and installation, and the present invention by astronomical cycle in the both sides B post that space is relatively large, make to install and design more calm and convenient;
3, looking in the process of key at every turn, wherein an antenna transmission related data and low frequency field intensity are only used, and other three antennas only send low frequency field intensity, Intelligent key only need receive a low-frequency data simultaneously, measure 4 infra-low frequency field intensity, comparatively speaking, save the electric quantity consumption of main frame and key end simultaneously.
Accompanying drawing explanation
Fig. 1 is inventive antenna arrangenent diagram;
Fig. 2 is that in car of the present invention, schematic diagram is defined in effective coverage and effective coverage, the left and right sides;
Fig. 3 is that schematic diagram is defined in boot effective coverage of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of method adopting four antennas to carry out key positioner, comprises the following steps:
1) front antenna 1, boot antenna 2, left antenna 3 and right antenna 4 are installed onboard, described front antenna 1 is located on the axis of the vehicle body of gear position, described boot antenna 2 is located on the axis of the vehicle body on rear side of back seat, and described left antenna 3 and right antenna 4 are located at B post position about the axis symmetry of vehicle body;
2) controller collection obtained by Intelligent key measurement before the signal intensity of antenna 1, boot antenna 2, left antenna 3 and right antenna 4, determine the position of key according to Rule of judgment,
The received signal strength indicator (RSSI) of four antennas that the position judgment of key mainly obtains based on Intelligent key measurement carries out.
As shown in Figure 2, wherein in figure partial symbols illustrated in table 1 shown in:
Table 1
| Symbol | Meaning |
| RSSI_Left_A | The RSSI value of the left antenna that key obtains in the boundary measurement of thick single-point hatched area |
| RSSI_Right_A | The RSSI value of the right antenna that key obtains in the place's measurement of thick two-dot chain line zone boundary |
| RSSI_Front_A | The RSSI value of key antenna before the place's measurement of heavy line zone boundary obtains |
| RSSI_Trunk_A | The RSSI value of the boot antenna that key obtains in the place's measurement of thick dashed line zone boundary |
As shown in Figure 3, wherein in figure partial symbols illustrated in table 2 shown in:
Table 2
| Symbol | Meaning |
| RSSI_Left_B | The RSSI value of the left antenna that key obtains in the boundary measurement of thin single-point hatched area |
| RSSI_Right_B | The RSSI value of the right antenna that key obtains in the place's measurement of thin two-dot chain line zone boundary |
| RSSI_Trunk_B | The RSSI value of the boot antenna that key obtains in the place's measurement of fine dotted line zone boundary |
As shown in accompanying drawing 2 and accompanying drawing 3, known " Intelligent key from tested antenna distance more close to the RSSI value that records larger " condition under, can obtain Intelligent key position judgment mechanism is:
If the RSSI value that 1 Intelligent key measurement obtains four antennas meets following four conditions simultaneously, can judge that key is positioned at vehicle body leftmost outer (as shown in Figure 2):
(1) RSSI value of the left antenna recorded is greater than RSSI_Left_A;
And the RSSI value of the right antenna recorded is less than RSSI_Right_A (2);
And the RSSI value of the front antenna recorded is less than RSSI_Front_A (3);
And the RSSI value of the boot antenna recorded is less than RSSI_Trunk_A (4).
2, in like manner, if the RSSI value that Intelligent key measurement obtains four antennas meets following four conditions simultaneously, can judge that key is positioned at vehicle body rightmost outer (as shown in Figure 2):
(1) RSSI value of the right antenna recorded is greater than RSSI_Right_A;
And the RSSI value of the left antenna recorded is less than RSSI_Left_A (2);
And the RSSI value of the front antenna recorded is less than RSSI_Front_A (3);
And the RSSI value of the boot antenna recorded is less than RSSI_Trunk_A (4).
If the RSSI value that 3 Intelligent key measurements obtain four antennas meets following four conditions simultaneously, can judge that key is positioned at (as shown in Figure 3) outside tail of the body:
(1) RSSI value of the boot antenna recorded is greater than RSSI_Trunk_B;
And the RSSI value of the boot antenna recorded is less than RSSI_Trunk_A (2);
And the RSSI value of the left antenna recorded is less than RSSI_Left_B (3);
And the RSSI value of the right antenna recorded is less than RSSI_Right_B (4).
If what the RSSI value that 4 Intelligent key measurements obtain four antennas met following three conditions can judge that key is positioned at interior of body (as shown in Figure 2) first:
(1) RSSI value of the front antenna recorded is greater than RSSI_Front_A;
Or the RSSI value of the left antenna recorded is greater than RSSI_Left_A and the RSSI value of the right antenna recorded is greater than RSSI_Right_A (2);
(3) or the RSSI value of the boot antenna recorded be greater than RSSI_Trunk_A.
Above-mentioned expression can represent by table 3 image equally:
Table 3
In table 3, the implication of partial symbols is as shown in table 4:
Table 4
Claims (4)
1. adopt four antennas to carry out a method for key positioner, it is characterized in that, use only four antennas realize Intelligent key location determination by key position decision plan.
2. employing according to claim 1 four antennas carry out the method for key positioner, it is characterized in that, four described antennas are respectively front antenna, boot antenna, left antenna and right antenna.
3. employing according to claim 2 four antennas carry out the method for key positioner, it is characterized in that, the installation site of four antennas is respectively: described front antenna is located on the axis of the vehicle body of gear position, described boot antenna is located on the axis of the vehicle body on rear side of back seat, described left antenna and right antenna are located at B post position about the axis symmetry of vehicle body, and the distance of each antenna and vehicle body metallic magnetism is greater than more than 2cm.
4. employing according to claim 3 four antennas carry out the method for key positioner, it is characterized in that, described key position decision plan is: the signal intensity of antenna, boot antenna, left antenna and right antenna before controller collection is obtained by Intelligent key measurement, the position of key is determined according to Rule of judgment, specific as follows:
41) if meet (condition_left_A) & & (! Condition_right_A) & & (! Condition_front_A) & & (! Condition_trunk_A), then key is positioned at vehicle body leftmost outer;
42) if meet (condition_right_A) & & (! Condition_left_A) & & (! Condition_front_A) & & (! Condition_trunk_A), then key is positioned at vehicle body rightmost outer;
43) if meet (condition_Trunk_B) & & (! Condition_left_B) & & (! Condition_right_B) & & (! Condition_trunk_A), then key is positioned at outside tail of the body;
44) if meet (condition_front_A) || ((condition_left_A) & & (condition_right_A)) || (condition_trunk_A), then key is positioned at interior of body;
Wherein each symbol definition is as follows:
Condition_left_A is that the left antenna RSSI value that key measurement obtains is greater than RSSI_Left_A;
! Condition_left_A is that the left antenna RSSI value that key measurement obtains is less than RSSI_Left_A;
Condition_left_B is that the left antenna RSSI value that key measurement obtains is greater than RSSI_Left_B;
! Condition_left_B is that the left antenna RSSI value that key measurement obtains is less than RSSI_Left_B;
Condition_right_A is that the right antenna RSSI value that key measurement obtains is greater than RSSI_Right_A;
! Condition_right_A is that the right antenna RSSI value that key measurement obtains is less than RSSI_Right_A;
Condition_right_B is that the right antenna RSSI value that key measurement obtains is greater than RSSI_Right_B;
! Condition_right_B is that the right antenna RSSI value that key measurement obtains is less than RSSI_Right_B;
Condition_front_A is that the front antenna RSSI value that key measurement obtains is greater than RSSI_Front_A;
! Condition_front_A is that the front antenna RSSI value that key measurement obtains is less than RSSI_Front_A;
Condition_trunk_A is that the boot antenna RSSI value that key measurement obtains is greater than RSSI_Trunk_A;
! Condition_trunk_A is that the boot antenna RSSI value that key measurement obtains is less than RSSI_Trunk_A;
Condition_trunk_B is that the boot antenna RSSI value that key measurement obtains is greater than RSSI_Trunk_B;
! Condition_trunk_B is that the boot antenna RSSI value that key measurement obtains is less than RSSI_Trunk_B;
& & is logical and; || be logical OR; ! For logic NOT;
RSSI_Left_A is key in the RSSI value of the left antenna obtained for border circular areas boundary measurement that the center of circle take R1 as radius with left antenna;
The RSSI value of the RSSI_Right_A right antenna that to be key obtain in the border circular areas boundary measurement of to take right antenna as the center of circle with R1 be radius;
The RSSI value of antenna before the border circular areas boundary measurement of RSSI_Front_A is the former antenna of key to be the center of circle with R2 be radius obtains;
RSSI_Trunk_A is the RSSI value of the boot antenna that key obtains for the border circular areas boundary measurement of case antenna to be the center of circle be radius afterwards with R3;
RSSI_Left_B is key in the RSSI value of the left antenna obtained for border circular areas boundary measurement that the center of circle take R4 as radius with left antenna;
The RSSI value of the RSSI_Right_B right antenna that to be key obtain in the border circular areas boundary measurement of to take right antenna as the center of circle with R4 be radius;
RSSI_Trunk_B is the RSSI value of the boot antenna that key obtains for the border circular areas boundary measurement of case antenna to be the center of circle be radius afterwards with R5;
Wherein, R1 equals the vertical range of left antenna to right front car door; R2 equals the distance of front antenna to left front car door; R3 equals the distance of boot antenna to trunk door; R4 equals the distance of afterbody on the left of left antenna to vehicle body; R5 equals the distance of rear-box antenna to Che Wai effective coverage, boot side boundary.
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| CN201310692876.2A CN104714210A (en) | 2013-12-17 | 2013-12-17 | Method for adopting four antennae to perform key positioning |
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| CN201310692876.2A CN104714210A (en) | 2013-12-17 | 2013-12-17 | Method for adopting four antennae to perform key positioning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009977A (en) * | 2016-01-05 | 2017-08-04 | 利维奥有限公司 | The event driven mobile device of two benches for vehicle is followed the trail of |
| CN107627974A (en) * | 2016-07-19 | 2018-01-26 | 上汽通用汽车有限公司 | Automobile-used wireless key detecting system and vehicle |
| CN108109244A (en) * | 2017-12-28 | 2018-06-01 | 重庆集诚汽车电子有限责任公司 | A kind of PEPS controller PE blocking methods |
| CN108116320A (en) * | 2017-12-18 | 2018-06-05 | 大陆汽车电子(长春)有限公司 | Rearview mirror Automatic adjustment method and system based on car key |
| CN110574399A (en) * | 2016-12-14 | 2019-12-13 | 株式会社电装 | Method and system for establishing micro-positioning area |
| WO2020013137A1 (en) * | 2018-07-09 | 2020-01-16 | Denso International America, Inc. | Half-hemisphere antennas for locating remote devices |
| CN110786056A (en) * | 2017-06-22 | 2020-02-11 | IPCom两合公司 | Antenna reference signal for distance measurement |
| CN111357341A (en) * | 2017-11-16 | 2020-06-30 | 奥迪股份公司 | Positioning of a mobile terminal by means of a vehicle |
| CN111524343A (en) * | 2020-04-30 | 2020-08-11 | 金瓜子科技发展（北京）有限公司 | Vehicle monitoring method and device and monitoring equipment |
| CN112009422A (en) * | 2019-05-31 | 2020-12-01 | 长城汽车股份有限公司 | Antenna system of PEPS system, key searching method, PEPS system and vehicle |
| CN112505623A (en) * | 2020-11-18 | 2021-03-16 | 上海科世达-华阳汽车电器有限公司 | Low-frequency calibration method of PEPS system |
| CN113495194A (en) * | 2020-04-07 | 2021-10-12 | 上汽通用汽车有限公司 | Automobile field strength test system based on OBD interface and test and off-line calibration method thereof |
| WO2022199101A1 (en) * | 2021-03-23 | 2022-09-29 | 一汽奔腾轿车有限公司 | Positioning determination system and method for intelligent key in the case of interference from mobile phone |
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| CN107009977B (en) * | 2016-01-05 | 2021-12-03 | 利维奥有限公司 | Two-stage event driven mobile device tracking for vehicles |
| CN107009977A (en) * | 2016-01-05 | 2017-08-04 | 利维奥有限公司 | The event driven mobile device of two benches for vehicle is followed the trail of |
| CN107627974A (en) * | 2016-07-19 | 2018-01-26 | 上汽通用汽车有限公司 | Automobile-used wireless key detecting system and vehicle |
| CN110574399A (en) * | 2016-12-14 | 2019-12-13 | 株式会社电装 | Method and system for establishing micro-positioning area |
| CN110786056A (en) * | 2017-06-22 | 2020-02-11 | IPCom两合公司 | Antenna reference signal for distance measurement |
| CN111357341A (en) * | 2017-11-16 | 2020-06-30 | 奥迪股份公司 | Positioning of a mobile terminal by means of a vehicle |
| CN111357341B (en) * | 2017-11-16 | 2022-04-22 | 奥迪股份公司 | Positioning of a mobile terminal by means of a vehicle |
| CN108116320A (en) * | 2017-12-18 | 2018-06-05 | 大陆汽车电子(长春)有限公司 | Rearview mirror Automatic adjustment method and system based on car key |
| CN108109244A (en) * | 2017-12-28 | 2018-06-01 | 重庆集诚汽车电子有限责任公司 | A kind of PEPS controller PE blocking methods |
| JP7124893B2 (en) | 2018-07-09 | 2022-08-24 | デンソー インターナショナル アメリカ インコーポレーテッド | Hemispherical antenna for locating remote devices |
| JP2021526760A (en) * | 2018-07-09 | 2021-10-07 | デンソー インターナショナル アメリカ インコーポレーテッド | Hemispherical antenna for locating remote devices |
| WO2020013137A1 (en) * | 2018-07-09 | 2020-01-16 | Denso International America, Inc. | Half-hemisphere antennas for locating remote devices |
| CN112009422A (en) * | 2019-05-31 | 2020-12-01 | 长城汽车股份有限公司 | Antenna system of PEPS system, key searching method, PEPS system and vehicle |
| CN112009422B (en) * | 2019-05-31 | 2022-06-28 | 长城汽车股份有限公司 | Antenna system of PEPS system, key searching method, PEPS system and vehicle |
| CN113495194A (en) * | 2020-04-07 | 2021-10-12 | 上汽通用汽车有限公司 | Automobile field strength test system based on OBD interface and test and off-line calibration method thereof |
| CN111524343A (en) * | 2020-04-30 | 2020-08-11 | 金瓜子科技发展（北京）有限公司 | Vehicle monitoring method and device and monitoring equipment |
| CN112505623A (en) * | 2020-11-18 | 2021-03-16 | 上海科世达-华阳汽车电器有限公司 | Low-frequency calibration method of PEPS system |
| CN112505623B (en) * | 2020-11-18 | 2022-07-15 | 上海科世达-华阳汽车电器有限公司 | Low-frequency calibration method of PEPS system |
| WO2022199101A1 (en) * | 2021-03-23 | 2022-09-29 | 一汽奔腾轿车有限公司 | Positioning determination system and method for intelligent key in the case of interference from mobile phone |
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Address after: 215126 No. 123 Changyang street, Suzhou Industrial Park, Suzhou, Jiangsu. Applicant after: Annex Electronics (Suzhou) Co., Ltd. Address before: 215126 No. 123 Changyang street, Suzhou Industrial Park, Suzhou, Jiangsu. Applicant before: Delphi Electronics (Suzhou) Co., Ltd. |
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