CN107741583A - The method for detecting position of automobile, the position detecting system of electron key and electron key - Google Patents
The method for detecting position of automobile, the position detecting system of electron key and electron key Download PDFInfo
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- CN107741583A CN107741583A CN201710619190.9A CN201710619190A CN107741583A CN 107741583 A CN107741583 A CN 107741583A CN 201710619190 A CN201710619190 A CN 201710619190A CN 107741583 A CN107741583 A CN 107741583A
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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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a kind of position detecting system of electron key, by the connection for controlling terminal and controlled plant, the request data sent by key server to terminal called module is compared, and communication module is allowed to be linked into controlled plant after checking request data, the two signal intensity being connected with control terminal is measured by key scan module and key controller module simultaneously, the position feature value for controlling terminal is judged jointly by the signal strength information of the two collection, so as to accurately obtain the range data of control terminal and controlled plant, when position feature value reaches precalculated position, i.e. the distance of the two meets communication condition, just electron key control program is unlocked, realize the control of control terminal-pair controlled plant.Present invention also offers a kind of automobile of the position detecting system with above-mentioned electron key.Present invention also offers a kind of method for detecting position of electron key.
Description
Technical field
The present invention relates to electron key technical field, is detected more specifically to the position of a kind of automobile, electron key
The method for detecting position of system and electron key.
Background technology
With the popularization of smart mobile phone and Intelligent hardware, various mobile phones are applied and Intelligent hardware application greatly is convenient for people to give birth to
It is living.With the combination of smart mobile phone and Intelligent hardware and automobile so that intelligent new technology may be directly applied to automobile, and automobile becomes
It is more and more intelligent.
Keyless access system is becoming increasingly popular into automobile key technical field, as long as user's carrying keys need not be grasped
Make key can and use vehicle, to being brought great convenience in use.The electron key of mobile phone and Intelligent hardware starts
It is existing, and applied in automobile key technology, wherein low-power consumption bluetooth technology is because its is low in energy consumption and is used in Intelligent hardware wide
It is general, also it is applied in automobile key field.
Most of Bluetooth electronic keys are required for operating handset application or Intelligent hardware to use, and it is Bluetooth electronic key
The active mode of entrance of spoon.And by the automatic identification of Bluetooth electronic key and automobile, electron key is verified by connection communication
After legitimacy, without being operated to smart mobile phone or Intelligent hardware, by electron key as the passive of keyless entry mode
Mode of entrance is limited by using.Its restricted subject matter is that the positioning precision of key is higher, key to key positioner
Spoon to be additionally related to multi-functional passive entry mode using effect better.
The electron key of low-power consumption bluetooth communication is currently based on, is seldom used by way of being additionally related to multi-functional passive entry, its is main
Reason is to be difficult to detect bluetooth key device in the position of vehicle, therefore vehicle accurately can not be operated, security risk
It is higher.Electron key is not using being additionally related to multi-functional passive entry technology, when manipulate automobile, electron key just do not possess keyless entry with
Without key startup function, the intelligent of electron key is reduced, user can be made inconvenient for use；And use the electricity for the technology that is additionally related to multi-functional passive entry
Sub- key, easily causes bad to bluetooth key device location Detection results, influences security and Consumer's Experience.
Therefore, the accurate detection to electron key position how is realized, is that current those skilled in the art are urgently to be resolved hurrily
Problem.
The content of the invention
In view of this, the invention provides a kind of position detecting system of electron key, to realize to electronics key position
Accurate detection；Present invention also offers a kind of automobile；Present invention also offers a kind of electron key method for detecting position.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of position detecting system of electron key, include the control terminal of built-in electronic key controller program, it is and described
Control terminal called and by the electron key control program manipulate controlled plant, and to it is described control terminal with it is described by
The key server that control device talk is authorized；
Terminal called module with controlled plant communication is set in the control terminal, the terminal called module with
The key server communicates and sends request data, and after request data described in the key server authentication, connects institute
State controlled plant；
Key scan module and key controller module with the terminal called module communication is set in the controlled plant,
The key scan module obtains its first signal strength information with the terminal called module communication, and sends to the key
Spoon control module, the key controller module obtain its secondary signal strength information with the terminal called module communication；
The key controller module receives first signal strength information, and by first signal strength information and
The secondary signal strength information obtains the position feature value of the control terminal；
When the position feature value, which reaches precalculated position, to be required, the electron key control program unblock.
Preferably, in the position detecting system of above-mentioned electron key, the terminal called module is in the key service
After device verifies the request data, while the broadcast singal connected with the controlled plant is sent, in the key scan module
After receiving the broadcast singal with the key controller module, the controlled plant is connected.
Preferably, in the position detecting system of above-mentioned electron key, the controlled plant is carbody, the key
Scan module includes being distributed in the multiple of the carbody head and afterbody, and the key controller module is arranged at the vehicle
The middle part of car body.
Preferably, in the position detecting system of above-mentioned electron key, the terminal called module is bluetooth communication module,
The key controller module and the key scan module are respectively Bluetooth control module and bluetooth scan module.
Preferably, in the position detecting system of above-mentioned electron key, the key scan module includes being located at institute respectively
State carbody head and four of afterbody car light position, four key scan modules are integrated in the carbody
Car light inside.
Preferably, in the position detecting system of above-mentioned electron key, the bluetooth communication module leads to for low-power consumption bluetooth
Interrogate module, the first information strength information and the second information strength information are respectively the bluetooth scan module and described
The RSSI value for the low-power consumption bluetooth communication module that Bluetooth control module obtains.
Preferably, in the position detecting system of above-mentioned electron key, the bluetooth scan module is connected to by LIN communications
The vehicular light control module of the carbody, the bluetooth scan module include bluetooth scanning chip, bluetooth scanning master controller
With bluetooth scanning power supply；The Bluetooth control module is connected to the car body controller of the carbody, the indigo plant by CAN
Tooth control module includes bluetooth key chip, bluetooth key master controller and bluetooth key power supply.
Preferably, in the position detecting system of above-mentioned electron key, the bluetooth scan module is integrally disposed in described
In the vehicular light control module of carbody, the integrally disposed car body controller in the carbody of the Bluetooth control module
It is interior.
A kind of automobile, including carbody and the electron key to carbody control, set in the carbody
It is equipped with the electron key position detecting system described in the as above any one matched with the electron key.
A kind of electron key method for detecting position, including step：
Step 1：Multiple annular distance areas of arranged concentric are divided centered on key controller module；
Step 2：In the precalculated position of the predetermined annular distance areas, the second letter of key controller module is obtained respectively
Cease strength information, and the first information strength information of key scan module collection；
Step 3：According to the first information strength information and the second information strength information, demarcation obtains described predetermined
The position feature value of position；
Repeat step 2 and step 3, until determining the position feature in multiple annular any precalculated positions of distance areas
Value.
The position detecting system of electron key provided by the invention, including the control of built-in electronic key controller program are whole
End, and control terminal called and the controlled plant that is manipulated by electron key control program, and control terminal is led to controlled plant
Interrogate the key server authorized；Control the terminal called module set in terminal with controlled plant communication, terminal called mould
Block communicates with key server and sends request data, and after key server authentication request data, connects controlled plant；By
The key scan module and key controller module set in equipment with terminal called module communication is controlled, key scan module obtains it
With the first signal strength information of terminal called module communication, and send to key controller module, key controller module and obtain it
With the secondary signal strength information of terminal called module communication；Key controller module receives the first signal strength information, and passes through
First signal strength information and secondary signal strength information obtain the position feature value of control terminal；When position feature value reaches pre-
When positioning is put, the unblock of electron key control program.
Terminal is controlled to be connected with controlled plant by being communicated after key server mandate, terminal called module and key server
Communication sends request data, and connection controlled plant is being authorized by rear obtain.Then by the key scan module in controlled plant
Its first signal strength information connected with terminal called module is obtained, secondary signal intensity letter is obtained by key controller module
Breath, the signal strength information of key controller module collection first and secondary signal strength information obtain the position feature of control terminal
Value, when key controller module judges that position feature value reaches precalculated position, the unblock of electron key control program, realize control terminal
Direct control to controlled plant.The connection of terminal and controlled plant is controlled, terminal called module is sent by key server
Request data be compared, and allow communication module to be linked into controlled plant after checking request data, while pass through key
Scan module and key controller module measure the two signal intensity being connected with control terminal, are believed by the signal intensity of the two collection
Breath is judged the position feature value for controlling terminal jointly, so as to accurately obtain the distance of control terminal and controlled plant
Data, when position feature value reaches precalculated position, i.e. the distance of the two meets communication condition, just to electron key control program solution
Lock, realize the control of control terminal-pair controlled plant.
The present invention is verified by key server to the communication request data for controlling terminal, gathers key scan module
The position for controlling terminal is positioned with the signal strength information of key controller module collection, it is controlled to improve control terminal-pair
The positioning precision of equipment, improves security.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the position detecting system of electron key provided by the invention；
Fig. 2 is that communication distance schematic diagram of the terminal outside controlled plant is controlled in Fig. 1；
Fig. 3 is that communication distance schematic diagram of the terminal inside controlled plant is controlled in Fig. 1；
Fig. 4 is the system block diagram that bluetooth scan module connects with Bluetooth control module in Fig. 1；
Fig. 5 is bluetooth scan module and the system block diagram of the integrated arrangement of Bluetooth control module in Fig. 1；
Fig. 6 is the system block diagram that bluetooth scan module connects with Bluetooth control module as separate modular in Fig. 1；
Fig. 7 is the region division schematic diagram of electron key method for detecting position provided by the invention；
Fig. 8 is that low-power consumption bluetooth connects graph of a relation between distance and RSSI.
Embodiment
The invention discloses a kind of position detecting system of electron key, realizes the accurate detection to electronics key position；
Present invention also offers a kind of automobile；Present invention also offers a kind of electron key method for detecting position.
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 carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiments of the invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
As shown in figure 1, Fig. 1 is the structural representation of the position detecting system of electron key provided by the invention.
The invention provides a kind of position detecting system of electron key, includes the control of built-in electronic key controller program
Terminal 1, and control terminal 1 controlled plant 2 that communicates and manipulated by electron key control program, and to control terminal 1 with it is controlled
Equipment 2 communicates the key server 3 authorized；Control the terminal called module for setting in terminal 1 and being communicated with controlled plant 3
101, terminal called module 101 communicates with key server 3 and sends request data, and in the checking request number of key server 3
According to rear, connection controlled plant 2；The key scan module 201 and key communicated with terminal called module 101 is set in controlled plant 2
Spoon control module 202, key scan module 201 obtain its first signal strength information communicated with terminal called module 101, and
Send to key controller module 202, the secondary signal that key controller module 202 obtains it with terminal called module 101 communicates is strong
Spend information；Key controller module 202 receives the first signal strength information, and strong by the first signal strength information and secondary signal
Spend the position feature value of acquisition of information control terminal 1；When position feature value 1 reaches precalculated position, electron key control program
Unblock.
Terminal 1 is controlled to be connected with controlled plant 2 by being communicated after key server mandate, terminal called module 101 and key
The communication of server 3 sends request data, and connection controlled plant 2 is being authorized by rear obtain.Then by the key in controlled plant 2
Scan module 201 obtains its first signal strength information connected with terminal called module 101, is obtained by key controller module 202
Secondary signal strength information is taken, key controller module 202 gathers the first signal strength information and secondary signal strength information obtains
Control the position feature value of terminal 1, when key controller module 202 judges that position feature value reaches precalculated position, electron key control
Processing procedure sequence unlocks, and realizes direct control of the control terminal 1 to controlled plant 2.Terminal 1 and the connection of controlled plant 2 are controlled, by key
The request data that spoon server 3 is sent to terminal called module 101 is compared, and allows terminal to lead to after checking request data
News module 101 is linked into controlled plant 2, while measures the two and control by key scan module 201 and key controller module 202
The signal intensity that terminal 1 processed connects, the position feature value for controlling terminal 1 is carried out jointly by the signal strength information of the two collection
Judge, so as to accurately obtain the range data of control terminal 1 and controlled plant 2, when position feature value reaches precalculated position,
I.e. the distance of the two meets communication condition, and just electron key control program is unlocked, and realizes the control of control terminal-pair controlled plant
System.
The communication request data for controlling terminal 1 are verified by key server 3, set key scan module 201
The position for controlling terminal 1 is positioned with the signal strength information that key controller module 202 gathers, improves control terminal 1
To the positioning precision of controlled plant 2, security is improved.
In the specific embodiment of this case one, terminal called module 101 is sent out simultaneously after key server authentication request data
The broadcast singal connected with controlled plant 2 is sent, after key scan module 201 and key controller module 202 receive broadcast singal,
Connect controlled plant 2.Control terminal 1 to carry out remote control to controlled plant 2, preset electron key control program in it, to by
Control equipment 2 realizes electron key control function.Control terminal 1 is mutually distinguishable and is connected by network with key server 3, is connected
During control terminal 1 to provide corresponding request data, key server 2 identifies the request data and after being verified,
Control terminal 1 is authorized.Specifically, after the checking request data of key server 3, generation and control 1 same algorithm of terminal
Electron key code, control terminal 1 is allowed entrance by the electron key code.
The process of the checking request data of key server 3 is the process identified to control terminal 1, allows two after being verified
Person interconnects.When controlling terminal 1 to manipulate controlled plant 2, it is necessary to carry out two sub-authorizations to the position for controlling terminal 1, i.e.,
Unblock to electron key control program.The unblock of electron key control program to the position feature value for controlling terminal 1 by entering
Row is realized after judging.The judgement of position feature value needs to control terminal 1 and key scan module 201 and key controller module 202
Judged after communication, terminal called module 101 sends broadcast singal, the first signal strength information and the second letter after obtaining mandate
Number strength information is obtained by the connection of key scan module 201 and key controller module 202 and terminal called module 101, is led to
Broadcast signal strength is over-scanned, obtains the first signal strength information and secondary signal strength information.
As shown in Figures 2 and 3, Fig. 2 is that communication distance schematic diagram of the terminal outside controlled plant is controlled in Fig. 1；Fig. 3 is
Communication distance schematic diagram of the terminal inside controlled plant is controlled in Fig. 1.
In the specific embodiment of this case one, controlled plant 2 is carbody, and key scan module 201 includes being distributed in car
Car body head and afterbody it is multiple, key controller module 202 is arranged at the middle part of carbody.Control terminal 1 realizes electronics
Function of key, controlled plant 2 are carbody, and automobile is realized by electron key and automatically controlled.Key scan module 201 includes
Multiple, and be distributed in carbody front and rear, dispersed placement is in the control scanning process of terminal 1, can be had
The first variant signal strength information data, while key controller module 202 is arranged in the middle part of carbody, what it was obtained
Secondary signal strength information is different from the first signal strength data again, by multigroup signal strength information data, is advantageous to improve
To the computational accuracy for the position feature value for controlling the distance of terminal 1.
In the specific embodiment of this case one, terminal called module 101 is bluetooth communication module, the He of key controller module 202
Key scan module 201 is respectively Bluetooth control module and bluetooth scan module.
Preferably, bluetooth communication module is low-power consumption bluetooth communication module, and first information strength information and the second information are strong
Degree information is respectively the RSSI value of bluetooth scan module and the low-power consumption bluetooth communication module of Bluetooth control module acquisition.
Low-power consumption bluetooth (BluetoothLow Energy), abbreviation BLE, it is low in energy consumption with using, safe, and
The characteristics of with wirelessly coexisting, suitable for external electronic equipment JA(junction ambient).Control load of the terminal as electron key control program
Body, interconnected by the terminal called module in it and key server.With reference to the handling characteristics of low-power consumption bluetooth, control terminal can
To refer specifically to smart mobile phone as terminal is controlled, low-power consumption bluetooth hardware is loaded thereon, and electron key control program can be installed,
Electron key control program can be arranged to the application program that can be attached on smart machine with particular code, further
The coverage of electron key is improved, certainly, control terminal can cover the intelligence with low-power consumption bluetooth and operable interface
Equipment.
Electron key control program is settable to be controlled carbody difference in functionality electronic remote, accordingly, key service
The related service of electron key control program, preset engine controller and Body Control such as on key server are run on device
The correlation modules such as device, meet realization of the electron key control program to carbody control function.Set simultaneously on key server
The related service of corresponding Bluetooth control module and bluetooth scan module is put, above-mentioned module is connected to carbody by CAN
Gateway, can communicate, guarantee a network connections each other.
Corresponding low-power consumption bluetooth, control terminal 1 and key scan module 201, the of the communication acquisition of key controller module 202
One signal strength information and the RSSI value that secondary signal strength information is low-power consumption bluetooth, RSSI (Received Signal
Strength Indication), the signal intensity of reception indicates, transmits wirelessly the optional part of layer, for judging to link matter
Amount, and whether increase broadcast transmission intensity.The distance of signaling point and receiving point is determined by the signal strength received, and then
A kind of location technology of location Calculation is carried out according to corresponding data.Using the RSSI value of low-power consumption bluetooth, can be achieved to control eventually
Electronic signal between end and controlled plant, which calculates, obtains the distance of the two, realizes the accurate calculating to electron key position.
In the specific embodiment of this case one, key scan module 202 is included respectively positioned at the head of carbody and afterbody
Four of car light position, four key scan modules 202 are integrated in inside the car light of carbody.Because Bluetooth signal is high
Frequency signal, is easily interfered, and is integrated into car light, and car light is mostly glass or plastic material, Bluetooth signal is influenceed it is smaller, just
In installation, mobile phone is different in car external position, different from each module RSSI.Bluetooth control module obtains according to bluetooth scan module
The four RSSI and RSSI of its own acquisition, by calculating, calculate position of the current control terminal relative to carbody.
As Figure 4-Figure 6, Fig. 4 is the system block diagram that bluetooth scan module connects with Bluetooth control module in Fig. 1；Fig. 5
For bluetooth scan module in Fig. 1 and the system block diagram of the integrated arrangement of Bluetooth control module；Fig. 6 be Fig. 1 in bluetooth scan module and
The system block diagram that Bluetooth control module connects as separate modular.
Bluetooth control module 402 and bluetooth scan module 401 pass through gateway by the car body controller 403 with carbody
404 realize interconnection, when being controlled by electron key to vehicle control device 403, by Bluetooth control module 402 to electron key
Control information transmitted, realize automatically controlling for carbody.
In the specific embodiment of this case one, the car light that bluetooth scan module 501 is connected to carbody by LIN communications controls
Module 503, bluetooth scan module 501 include bluetooth scanning chip, bluetooth scanning master controller and bluetooth scanning power supply；Bluetooth control
Molding block 502 is connected to the car body controller 504 of carbody by CAN, and Bluetooth control module 502 includes bluetooth key core
Piece, bluetooth key master controller and bluetooth key power supply.
Bluetooth scan module 501 is connected in the control system of carbody as single module, bluetooth scan module
501 are made up of three parts, when being connected into the control system of carbody, gateway 505 are connected to by CAN, by gateway 505
Realize that network interconnection communicates.The bluetooth scan module 501 individually arranged, it can be arranged inside car light, can also be arranged at
Any problem of automobile body, it is easy to the setting of its layout.Bluetooth control module is connected to gateway by CAN, with other
Control module realizes communication.The form individually arranged, vehicular light control module 503 directly participates in message forwarding, easy to install,
Each component function is independent.
In the specific embodiment of this case one, the integrally disposed vehicular light control module in carbody of bluetooth scan module 601
In 603, Bluetooth control module 601 is integrally disposed in the car body controller 604 of carbody.Bluetooth scan module 601 also may be used
To be integrated into car light controller 603, similarly, Bluetooth control module 602 is integrated into car body controller 604, total by CAN
Line completes the interaction between module, integrates the mode of arrangement, saves cost.
Based on the electron key position detecting system provided in above-described embodiment, present invention also offers a kind of automobile, bag
Carbody and the electron key to carbody control are included, is provided with carbody and is matched as above with electron key
Described electron key position detecting system.
Because the automobile employs the electron key position detecting system of above-described embodiment, so the automobile is by electron key
The beneficial effect that position detecting system is brought refer to above-described embodiment.
As shown in Figure 7 and Figure 8, Fig. 7 is the region division schematic diagram of electron key method for detecting position provided by the invention；
Fig. 8 is that low-power consumption bluetooth connects graph of a relation between distance and RSSI.
Present invention also offers a kind of electron key method for detecting position, including step：
Step 1：Multiple annular distance areas 702 of arranged concentric are divided centered on key controller module 701.
Because Bluetooth signal is high-frequency signal, by single RSSI value calculate apart from when, can only obtain the distance institute of calculating
Position location, can be determined at a less region by the certain limit at place, and when being positioned by multiple RSSI, but the calculating
Mode is more complicated, in order to improve the accuracy of the positioning of Bluetooth control module 701, multiple RSSI orientation ranges is divided into multiple
Region 703, and the numerical value in each region 703 is demarcated, by calibration value as position feature value.
Before demarcation, multiple annular distance areas 702 are divided centered on Bluetooth control module 701, according to annular distance
Different annular distance areas can be arranged to different functions by region 702 apart from the distance of the distance of Bluetooth control module 701
Area, improve the positioning accuracy of control terminal, functional diversity.
Step 2：In the precalculated position of predetermined annular distance areas 702, the second letter of key controller module is obtained respectively
Cease strength information, and the first information strength information of key scan module collection.
It is a regional value by RSSI defined locations characteristic value, each annular distance areas 702 is divided again and divided
For multiple regions 703 of formed objects, the position feature value in each region 703 is regularly, bluetooth control to be gathered in the region 703
Second information strength information of molding block 701, the i.e. RSSI of Bluetooth control module, and the first information intensity of bluetooth scan module
The RSSI of information, i.e. bluetooth scan module, the relation between the precalculated position in the region 703 and each RSSI are accordingly.
Step 3：According to first information strength information and the second information strength information, the position that demarcation obtains precalculated position is special
Value indicative.
Because the RSSI that Bluetooth control module and bluetooth scan module obtain is in the regular to precalculated position of precalculated position
Position feature value demarcated, demarcate the fixation RSSI of the position so that the correlation between position feature value and RSSI
It can calculate, RSSI and position feature value corresponding relation are integrated in Bluetooth control module so that control terminal is entered
After entering the precalculated position to around carbody, you can calculate position of the control terminal relative to carbody.
Repeat step 2 and step 3, until determining the position feature value in multiple annular 702 any precalculated positions of distance areas.
Repeat the above steps, by the corresponding relation of the position feature value of Bluetooth control module periphery regional and RSSI value
It is determined, you can obtain the data set of the position feature value as corresponding to the RSSI control terminals obtained and controlled plant.
In fig. 8, RSSI value and the distance of control device and controlled plant are linear, in distance Curve
During 802 are gradually distance from, RSSI curves 801 move towards to beat along distance Curve 802, synchronization action.Two connections
The more remote RSSI of bluetooth equipment distance is smaller, and two equipment relative distances are may infer that according to RSSI, and it is bent for different chips and equipment
Line can be different, demarcated in practical application by actual measurement, and human intervention determines the corresponding relation of RSSI value and position feature value,
The accuracy determined to control terminal location can be improved.
Control terminal could be arranged to the smart machines such as smart mobile phone, and preset electron key to wagon control controls in it
Program, pass through bluetooth communication so that smart mobile phone possesses the function of bluetooth key.It is mobile phone by the exploitation of electron key control program
Bluetooth key applies (APP), and user can actively carry out vehicle behaviour by corresponding operating in Bluetooth of mobile phone key application (APP)
Make.
After smart mobile phone is connected certification with automobile, by passive mode, vehicle can also be operated, such as press door handle solution
Lock, start vehicle by one-key start switch.
Need to detect smart mobile phone position when passive mode is using vehicle, low-power consumption bluetooth mould is integrated with car light module
Block, four bluetooth scan modules are located in the car light at four angles of vehicle, when Bluetooth control module and smart mobile phone establish connection and
It is verified, mobile phone sends broadcast singal simultaneously, bluetooth module scanning cell phone broadcast singal, obtains the low-power consumption bluetooth received
The RSSI signal intensity of reception (instruction), be sent to by CAN lines in Bluetooth control module, Bluetooth control module passes through four
The RSSI and RSSI of oneself connection, by being preset in position feature value in Bluetooth control module, to calculate the Position Approximate of mobile phone
Region.
According to the mobile phone of bluetooth key in relative vehicle position and its change in location, referred to for passive operation, such as only
Detect the mobile phone of bluetooth key in driving cabin could one-key start, only detect bluetooth key handset close to when vehicle
Ability automatic unlocking vehicle etc. operates.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of position detecting system of electron key, it is characterised in that the control including built-in electronic key controller program is whole
End, with the control terminal called and by the controlled plant of electron key control program manipulation, and to the control terminal
The key server authorized with controlled plant communication；
Terminal called module with controlled plant communication is set in the control terminal, the terminal called module with it is described
Key server communicates and sends request data, and after request data described in the key server authentication, connection it is described by
Control equipment；
Key scan module and key controller module with the terminal called module communication is set in the controlled plant, it is described
Key scan module obtains its first signal strength information with the terminal called module communication, and sends to the key controlled
Molding block, the key controller module obtain its secondary signal strength information with the terminal called module communication；
The key controller module receives first signal strength information, and passes through first signal strength information and described
Secondary signal strength information obtains the position feature value of the control terminal；
When the position feature value, which reaches precalculated position, to be required, the electron key control program unblock.
2. the position detecting system of electron key according to claim 1, it is characterised in that the terminal called module exists
After request data described in the key server authentication, while the broadcast singal connected with the controlled plant is sent, described
After key scan module and the key controller module receive the broadcast singal, the controlled plant is connected.
3. the position detecting system of electron key according to claim 1, it is characterised in that the controlled plant is vehicle
Car body, the key scan module include being distributed in multiple, the key controller module of the carbody head and afterbody
It is arranged at the middle part of the carbody.
4. the position detecting system of electron key according to claim 3, it is characterised in that the terminal called module is
Bluetooth communication module, the key controller module and the key scan module are respectively Bluetooth control module and bluetooth scanning mould
Block.
5. the position detecting system of electron key according to claim 4, it is characterised in that the key scan module bag
Four respectively positioned at the head of the carbody and afterbody car light position are included, four key scan modules are integrated in
Inside the car light of the carbody.
6. electron key position detecting system according to claim 4, it is characterised in that the bluetooth communication module is low
Power consumption bluetooth communication module, the first information strength information and the second information strength information are respectively the bluetooth scanning
The RSSI value for the low-power consumption bluetooth communication module that module and the Bluetooth control module obtain.
7. electron key position detecting system according to claim 4, it is characterised in that the bluetooth scan module by
LIN communicates the vehicular light control module for being connected to the carbody, and the bluetooth scan module includes bluetooth scanning chip, bluetooth
Scan master controller and bluetooth scanning power supply；The Bluetooth control module is connected to the vehicle body of the carbody by CAN
Controller, the Bluetooth control module include bluetooth key chip, bluetooth key master controller and bluetooth key power supply.
8. electron key position detecting system according to claim 4, it is characterised in that the bluetooth scan module integrates
It is arranged in the vehicular light control module of the carbody, the integrally disposed car in the carbody of the Bluetooth control module
In body controller.
9. a kind of automobile, including carbody and the electron key to carbody control, it is characterised in that the vehicle
The detection system of the electron key position as described in claim 1-8 any one matched with the electron key is provided with car body
System.
10. a kind of electron key method for detecting position, it is characterised in that including step：
Step 1：Multiple annular distance areas of arranged concentric are divided centered on key controller module；
Step 2：In the precalculated position of the predetermined annular distance areas, the second information for obtaining key controller module respectively is strong
Spend information, and the first information strength information of key scan module collection；
Step 3：According to the first information strength information and the second information strength information, demarcation obtains the precalculated position
Position feature value；
Repeat step 2 and step 3, until determining the position feature value in multiple annular any precalculated positions of distance areas.
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| CN201710619190.9A CN107741583A (en) | 2017-07-26 | 2017-07-26 | The method for detecting position of automobile, the position detecting system of electron key and electron key |
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| CN201710619190.9A CN107741583A (en) | 2017-07-26 | 2017-07-26 | The method for detecting position of automobile, the position detecting system of electron key and electron key |
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