CN102394340A - Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller - Google Patents
Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller Download PDFInfo
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- CN102394340A CN102394340A CN2011101814910A CN201110181491A CN102394340A CN 102394340 A CN102394340 A CN 102394340A CN 2011101814910 A CN2011101814910 A CN 2011101814910A CN 201110181491 A CN201110181491 A CN 201110181491A CN 102394340 A CN102394340 A CN 102394340A
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Abstract
The invention discloses an antenna adjustment device and method for a vehicle active RFID (Radio Frequency Identification) and a vehicle controller. The device is installed on a PCB (Printed Circuit Board) circuit board of the vehicle controller and the device comprises an RFID reader, an antenna, an antenna rotary table, a rotary shaft and a connection wire, wherein the RFID reader and the antenna are arranged on the antenna rotary table and the antenna rotary table is connected with the rotary shaft; the antenna rotary table drives the RFID reader and the antenna to rotate through the rotary shaft to realize the direction adjustment of the antenna; the RFID reader is connected with the PCB circuit board through the connection wire, wherein the RFID reader is used for receiving signals sent by an active RFID label through the antenna. The antenna adjustment device is provided with the active RFID label, the data transmission is not limited by the installation direction of the controller and the antenna adjustment can be carried out by the antenna adjustment device according to strength information of the received signals, so that the antenna can be adjusted to be best receiving direction.
Description
Technical field
The application relates to the automotive telematics technical field, particularly automobile-used active RFID (Radio Frequency Identification, radio frequency identification) antenna regulating device, controller and method.
Background technology
Along with the development of automotive engineering, engine, gearbox, drive axle etc. are integrated the formation powertrain system of automobile.Wherein, adopt electronic tag to realize information Recognition, monitoring and management etc., to promote the parameter recognition and the information system management of powertrain system of automobile to power assembly system.
Prior art is installed passive electronic label usually on automobile, but passive electronic label requires not have the transmission of covering usually, so transmission range is short, data amount transmitted is few, and only supports unidirectional reading, and therefore is difficult to information of vehicles is effectively obtained and manages.
Summary of the invention
The application embodiment provides a kind of automobile-used active RFID antenna regulating device, automobile controller and method, is difficult to the problem that information of vehicles is effectively obtained and manages to solve the existing passive electronic label that adopts.
In order to solve the problems of the technologies described above, the application embodiment discloses following technical scheme:
A kind of automobile-used active radio frequency discrimination RFID antenna regulating device, said device is used to be installed in the PCB circuit board of vehicle control device, and said device comprises: RFID reader, antenna, antenna rotating disk, rotation axis and connecting line, wherein,
RFID reader and antenna are arranged on the said antenna rotating disk, and said antenna rotating disk is connected with said rotation axis, and said antenna rotating disk drives said RFID reader through said rotation axis and antenna rotates, and realize that the direction of said antenna is regulated; Said RFID reader is connected with said PCB circuit board through said connecting line, and wherein, said RFID reader is used for receiving the signal that active RFID tag sends through said antenna.
Said antenna and said RFID reader are integrated.
Said connecting line one end is connected with said RFID reader, and the other end passes the inner cavity of said rotation axis and is connected with said PCB circuit board.
A kind of automobile controller comprises: PCB circuit board and aforesaid antenna regulating device.
Also comprise: single-chip microcomputer is used to receive the signal strength information that active RFID tag that said RFID reader sends sends signal, and said signal strength information is transferred to computing terminal; Wherein, said single-chip microcomputer links to each other with said RFID read module through data interface circuit, and links to each other with said computing terminal through communication serial port.
A kind of automobile-used active RFID antenna adjustment method, said method is applied to aforesaid automobile controller, and said method comprises:
The RFID reader receives the signal of active RFID tag transmission through antenna;
The RFID reader is transferred to computing terminal with the signal strength information of said signal;
Receive the said signal strength information that said computing terminal returns and whether satisfy pre-conditioned information, when unmet is pre-conditioned, regulate the direction of said antenna, satisfy said pre-conditioned until said signal strength information.
Said RFID reader is transferred to computing terminal with the signal strength information of said signal and comprises:
Said RFID reader is transferred to single-chip microcomputer through data interface circuit with said signal strength information;
Said single-chip microcomputer is transmitted to said computing terminal through communication serial port with said signal strength information.
Whether the said signal strength information that said reception computing terminal returns satisfies pre-conditioned information comprises:
Whether computing terminal satisfies pre-conditioned information with said signal strength information is transferred to single-chip microcomputer through communication serial port;
Receive the said signal strength information that said single-chip microcomputer transmits through data interface circuit and whether satisfy pre-conditioned information.
Saidly satisfy pre-conditioned comprising:
The signal strength values of said signal strength information indication surpasses predetermined threshold value; Perhaps,
The signal strength values of said signal strength information indication is acquired maximum signal value.
Also comprise: said when pre-conditioned when satisfying, keep the current direction of said antenna.
Can find out by the foregoing description; Automobile-used active radio frequency discrimination RFID antenna regulating device among the application embodiment is installed on the PCB circuit board of vehicle control device; This device comprises RFID reader, antenna, antenna rotating disk, rotation axis and connecting line; RFID reader and antenna are arranged on the said antenna rotating disk; Said antenna rotating disk is connected with said rotation axis, and said antenna rotating disk drives said RFID reader through said rotation axis and antenna rotates, and realizes that the direction of said antenna is regulated; Said RFID reader is connected with said PCB circuit board through said connecting line, and wherein, said RFID reader is used for receiving the signal that active RFID tag sends through said antenna.The antenna regulating device using active RFID electronic tag of the application embodiment; So long transmission distance; Data amount transmitted is many, and can satisfy in indoor transmitted in both directions and the read-write of carrying out data of chlamydate automobile, and transfer of data can not be controlled the restriction of device installation direction; Because antenna regulating device can carry out antenna adjustments according to receiving signal strength information, therefore can be with antenna adjustments on the optimum reception direction.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; For those of ordinary skills, under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the first embodiment sketch map of the automobile-used active RFID antenna regulating device of the application;
Fig. 2 is the second embodiment sketch map of the automobile-used active RFID antenna regulating device of the application;
Fig. 3 is the first embodiment sketch map of the application's automobile controller;
Fig. 4 is the second embodiment sketch map of the application's automobile controller;
Fig. 5 is the embodiment flow chart of the automobile-used active RFID antenna adjustment method of the application.
Embodiment
The following embodiment of the present invention provides a kind of automobile-used active RFID antenna regulating device, automobile controller and method.
The application embodiment adopts active RFID tag when realizing automobile-used active RFID antenna adjustments, this label is made up of coupling element and chip usually, and each label has unique electronic code, attached to identifying destination object on the object.The active RFID electronic label has long transmission distance, can satisfy the characteristics of the transfer of data under the coverage condition in the vehicle, and with respect to passive RFID electronic label, data quantity transmitted is big, and does not receive the restriction of automobile controller installation direction.
In order to make those skilled in the art person understand the technical scheme in the embodiment of the invention better; And make the above-mentioned purpose of the embodiment of the invention, feature and advantage can be more obviously understandable, below in conjunction with accompanying drawing technical scheme in the embodiment of the invention done further detailed explanation.
Referring to Fig. 1, be the first embodiment sketch map of the automobile-used active RFID antenna regulating device of the application, this embodiment shows the end view of automobile-used active RFID antenna regulating device:
Said device comprises: RFID reader 110, antenna 120, antenna rotating disk 130, rotation axis 140 and connecting line 150.Wherein, antenna 120 is integrated with RFID reader 110, so antenna 120 is not shown separately among Fig. 1, but representes that through label 110 (120) the two is integrated.
Wherein, RFID reader 110 is arranged on the antenna rotating disk 130 with antenna 120; Antenna rotating disk 130 is connected with rotation axis 140, and the antenna rotating disk is stated RFID reader 110 through rotation axis 140 drives and rotated with antenna 120, realizes the direction adjusting of antenna 120 in 360 degree scopes; RFID reader 110 is connected with the PCB circuit board of automobile controller through connecting line 150, and wherein, RFID reader 110 is used for receiving the signal that active RFID tag sends through antenna 120.
Among Fig. 1, connecting line 150 1 ends are connected with RFID reader 110, and the other end passes rotation axis 140 inner cavity and PCB (Printed Circuit Board, printed circuit board (PCB)) circuit boards and connects.The cavity design of rotation axis 140 can be simplified the structure of entire antenna adjusting device.
Referring to Fig. 2, be the second embodiment sketch map of the automobile-used active RFID antenna regulating device of the application, this embodiment shows the vertical view of automobile-used active RFID antenna regulating device:
Overlooking on the direction shown in Fig. 2, comprise RFID reader 110 and the antenna 120 integrated, antenna rotating disk 130 and rotation axis 140 with it.RFID reader 110 is arranged on the antenna rotating disk 130 with antenna 120; Antenna rotating disk 130 is connected with rotation axis 140; The antenna rotating disk is stated RFID reader 110 through rotation axis 140 drives and is rotated with antenna 120, realizes the direction adjusting of antenna 120 in 360 degree scopes.
Visible by the foregoing description; Antenna regulating device using active RFID electronic tag, so long transmission distance, data amount transmitted is many; And can satisfy in indoor transmitted in both directions and the read-write of carrying out data of chlamydate automobile, transfer of data can not be controlled the restriction of device installation direction; Because antenna regulating device can carry out antenna adjustments according to receiving signal strength information, therefore can be with antenna adjustments on the optimum reception direction.
Referring to Fig. 3, be the first embodiment sketch map of the application's automobile controller, this automobile controller comprises the automobile-used active radio frequency discrimination RFID antenna regulating device in the previous embodiment.
Among Fig. 3, show automobile-used active radio frequency discrimination RFID antenna regulating device 310 and PCB circuit board 320 with integral way.
Wherein, automobile-used active radio frequency discrimination RFID antenna regulating device 310 can specifically comprise RFID reader, antenna, antenna rotating disk, rotation axis and connecting line.RFID reader and antenna are arranged on the antenna rotating disk, and the antenna rotating disk is connected with rotation axis, and the antenna rotating disk states the RFID reader through the rotation axis drive and antenna rotates, and realize the direction adjusting of antenna in the degree scope; The RFID reader is connected with the PCB circuit board of automobile controller through connecting line, and wherein, the RFID reader is used for receiving the signal that active RFID tag sends through antenna.Wherein, connecting line one end is connected with the RFID reader, and the other end passes the inner cavity of rotation axis and is connected with PCB circuit board 320.
Referring to Fig. 4, be the second embodiment sketch map of the application's automobile controller, this automobile controller comprises the automobile-used active radio frequency discrimination RFID antenna regulating device in the previous embodiment.
Among Fig. 4, show automobile-used active radio frequency discrimination RFID antenna regulating device 310 and PCB circuit board 320, further, also comprise single-chip microcomputer 330, data interface circuit 331 and 332 with integral way.
Wherein, automobile-used active radio frequency discrimination RFID antenna regulating device 310 can specifically comprise RFID reader, antenna, antenna rotating disk, rotation axis and connecting line.RFID reader and antenna are arranged on the antenna rotating disk, and the antenna rotating disk is connected with rotation axis, and the antenna rotating disk states the RFID reader through the rotation axis drive and antenna rotates, and realize the direction adjusting of antenna in the degree scope; The RFID reader is connected with the PCB circuit board of automobile controller through connecting line, and wherein, the RFID reader is used for receiving the signal that active RFID tag sends through antenna.Wherein, connecting line one end is connected with the RFID reader, and the other end passes the inner cavity of rotation axis and is connected with PCB circuit board 320.
Single-chip microcomputer 330 is used to receive the signal strength information that active RFID tag that the RFID reader sends sends signal, and signal strength information is transferred to computing terminal; Wherein, single-chip microcomputer 330 links to each other with the RFID read module through data interface circuit 331, and links to each other with computing terminal through communication serial port 332.
Corresponding with the embodiment of aforementioned automobile-used active radio frequency discrimination RFID antenna regulating device and automobile controller, the application also provides the embodiment of automobile-used active RFID antenna adjustment method, and this method is applied in the aforementioned automobile controller.
Referring to Fig. 5, be the embodiment flow chart of the automobile-used active RFID antenna adjustment method of the application:
Step 501:RFID reader receives the signal of active RFID tag transmission through antenna.
In the present embodiment; Antenna and RFID reader are integrated, and active RFID tag can be installed in vehicle interior, and it has long transmission distance; Can satisfy the characteristics of the transfer of data under the coverage condition in the vehicle; With respect to passive RFID electronic label, data quantity transmitted is big, and does not receive the restriction of automobile controller installation direction.The radiofrequency signal that active RFID sends is obtained by the RFID reader after antenna receives.
Step 502:RFID reader is transferred to computing terminal with the signal strength information of signal.
Concrete, the RFID reader is transferred to single-chip microcomputer through data interface circuit with signal strength information, and single-chip microcomputer is transmitted to computing terminal through communication serial port with signal strength information.
Step 503: receive the signal strength information that computing terminal returns and whether satisfy pre-conditioned information, when unmet is pre-conditioned, regulate the direction of antenna, satisfy until signal strength information that this is pre-conditioned.
Concrete, whether computing terminal satisfies pre-conditioned information with signal strength information is transferred to single-chip microcomputer through communication serial port, and whether the signal strength information that the reception single-chip microcomputer is transmitted through data interface circuit satisfies pre-conditioned information.
Wherein, pre-conditioned can comprising: the signal strength values of signal strength information indication surpasses predetermined threshold value; Perhaps, the signal strength values of signal strength information indication is acquired maximum signal value.For example, the threshold value that preset signals intensity should satisfy is 70%, then for the signal strength information that receives; If the signal strength signal intensity of its indication greater than 70%, then satisfies this threshold value, keep the adjusting direction of current antenna to get final product; If the signal strength signal intensity of its indication is less than 70%, then the rotary antenna rotating disk is regulated antenna direction; Again return step 501 and carry out the step of the signal that receives the active RFID tag transmission; And repeat whether the signal strength values of this signal is satisfied pre-conditioned judgement, after certain once regulated antenna, signal strength values was greater than 70%.
Further, when satisfying when pre-conditioned, keep the current direction of antenna, explain that the adjusting to this antenna finishes, the signal strength signal intensity that the active RFID electronic label that it can receive sends signal reaches optimum.
Description through to above execution mode can be known; Automobile-used active radio frequency discrimination RFID antenna regulating device among the application embodiment is installed on the PCB circuit board of vehicle control device; This device comprises RFID reader, antenna, antenna rotating disk, rotation axis and connecting line; RFID reader and antenna are arranged on the said antenna rotating disk; Said antenna rotating disk is connected with said rotation axis, and said antenna rotating disk drives said RFID reader through said rotation axis and antenna rotates, and realizes that the direction of said antenna is regulated; Said RFID reader is connected with said PCB circuit board through said connecting line, and wherein, said RFID reader is used for receiving the signal that active RFID tag sends through said antenna.The antenna regulating device using active RFID electronic tag of the application embodiment; So long transmission distance; Data amount transmitted is many, and can satisfy in indoor transmitted in both directions and the read-write of carrying out data of chlamydate automobile, and transfer of data can not be controlled the restriction of device installation direction; Because antenna regulating device can carry out antenna adjustments according to receiving signal strength information, therefore can be with antenna adjustments on the optimum reception direction.
The technology that those skilled in the art can be well understood in the embodiment of the invention can realize by the mode that software adds essential general hardware platform.Based on such understanding; The part that technical scheme in the embodiment of the invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is the difference with other embodiment.Especially, for system embodiment, because it is basically similar in appearance to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automobile-used active radio frequency discrimination RFID antenna regulating device is characterized in that said device is used to be installed in the PCB circuit board of vehicle control device, and said device comprises: RFID reader, antenna, antenna rotating disk, rotation axis and connecting line, wherein,
RFID reader and antenna are arranged on the said antenna rotating disk, and said antenna rotating disk is connected with said rotation axis, and said antenna rotating disk drives said RFID reader through said rotation axis and antenna rotates, and realize that the direction of said antenna is regulated; Said RFID reader is connected with said PCB circuit board through said connecting line, and wherein, said RFID reader is used for receiving the signal that active RFID tag sends through said antenna.
2. device according to claim 1 is characterized in that, said antenna and said RFID reader are integrated.
3. device according to claim 1 is characterized in that, said connecting line one end is connected with said RFID reader, and the other end passes the inner cavity of said rotation axis and is connected with said PCB circuit board.
4. an automobile controller is characterized in that, comprising: the PCB circuit board reaches like any described antenna regulating device of claim 1 to 3.
5. controller according to claim 4 is characterized in that, also comprises: single-chip microcomputer is used to receive the signal strength information that active RFID tag that said RFID reader sends sends signal, and said signal strength information is transferred to computing terminal; Wherein, said single-chip microcomputer links to each other with said RFID read module through data interface circuit, and links to each other with said computing terminal through communication serial port.
6. an automobile-used active RFID antenna adjustment method is characterized in that, said method is applied to like claim 4 or 5 any described automobile controllers, and said method comprises:
The RFID reader receives the signal of active RFID tag transmission through antenna;
The RFID reader is transferred to computing terminal with the signal strength information of said signal;
Receive the said signal strength information that said computing terminal returns and whether satisfy pre-conditioned information, when unmet is pre-conditioned, regulate the direction of said antenna, satisfy said pre-conditioned until said signal strength information.
7. method according to claim 6 is characterized in that, said RFID reader is transferred to computing terminal with the signal strength information of said signal and comprises:
Said RFID reader is transferred to single-chip microcomputer through data interface circuit with said signal strength information;
Said single-chip microcomputer is transmitted to said computing terminal through communication serial port with said signal strength information.
8. method according to claim 6 is characterized in that, whether the said signal strength information that said reception computing terminal returns satisfies pre-conditioned information comprises:
Whether computing terminal satisfies pre-conditioned information with said signal strength information is transferred to single-chip microcomputer through communication serial port;
Receive the said signal strength information that said single-chip microcomputer transmits through data interface circuit and whether satisfy pre-conditioned information.
9. method according to claim 6 is characterized in that, saidly satisfies pre-conditioned comprising:
The signal strength values of said signal strength information indication surpasses predetermined threshold value; Perhaps,
The signal strength values of said signal strength information indication is acquired maximum signal value.
10. method according to claim 6 is characterized in that, also comprises: said when pre-conditioned when satisfying, keep the current direction of said antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110181491 CN102394340B (en) | 2011-06-30 | 2011-06-30 | Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller |
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| CN 201110181491 CN102394340B (en) | 2011-06-30 | 2011-06-30 | Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller |
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| CN105447351A (en) * | 2014-08-21 | 2016-03-30 | 联想(北京)有限公司 | Control method and apparatus |
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| US10955977B2 (en) | 2015-11-03 | 2021-03-23 | Microsoft Technology Licensing, Llc | Extender object for multi-modal sensing |
| US11758413B2 (en) | 2020-09-24 | 2023-09-12 | Pegatron Corporation | Roadside apparatus and communication beam pointing direction adjusting method thereof |
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| US11758413B2 (en) | 2020-09-24 | 2023-09-12 | Pegatron Corporation | Roadside apparatus and communication beam pointing direction adjusting method thereof |
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