CN203733175U - Automatic automobile trunk opening system and sensor device thereof - Google Patents
Automatic automobile trunk opening system and sensor device thereof Download PDFInfo
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- CN203733175U CN203733175U CN201420004926.3U CN201420004926U CN203733175U CN 203733175 U CN203733175 U CN 203733175U CN 201420004926 U CN201420004926 U CN 201420004926U CN 203733175 U CN203733175 U CN 203733175U
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Abstract
The utility model relates to an automatic automobile trunk opening system which comprises a sensor device, a PEPS (Passive Entry Passive Start) controller, a smart key and a trunk control module, wherein the sensor device is mounted on an inner side surface of a tail bumper of an automobile insulator; the PEPS controller is electrically connected with the sensor device and is mounted on an automobile; the smart key is used for authenticating the identity information of an automobile owner through the PEPS controller; the trunk control module is used for driving the automobile trunk to be opened; the sensor device comprises a control unit and at least two capacitance sensing pieces mounted on the tail bumper. The automatic automobile trunk opening system provided by the utility model can automatically identify the identity of the automobile owner, can automatically open the trunk cover according to a foot action signal detected by the sensor device, and thus has the characteristics of convenience in use, high security, good reliability and complete water prevention. Besides, the utility model further relates to a sensor device of the automatic automobile trunk opening system.
Description
[technical field]
The utility model relates to a kind of car trunk automatic opening system; The utility model also relates to a kind of sensor device.
[background technology]
The automobile of present a lot of vehicles has all been installed PEPS system (Passive Entry & Passive Start Systems, enter and startup system without key, for convenience of description, its controller is abbreviated as to " PEPS controller ") and BCM(Body Control Module, car body control module).
PEPS system applies REID, just can automatically perform the identification to car owner without human intervention.
And car body control module major control body of a motor car electrical appliance, such as car load light fixture, windscreen wiper, washing, door lock, motorized window, skylight, driven rearview mirrors, remote control etc., the switching signal of each electrical appliance is inputed to car body control module by the control module of its higher level's control system, and car body control module directly or work by Control corresponding electric appliance.
Existingly mainly contain two kinds for opening the mode of operation of car trunk, one is directly to open mechanical lock with mechanical key, and another kind is to press corresponding button with Intelligent key to trigger boot open command and indirectly open mechanical lock.These two kinds of modes all need can complete with manual manipulation.
But, for will often going out to purchase the car owner of shiploads of merchandise, often there will be the both hands of doing shopping out all to hold commodity and be inconvenient to strike with the hand open the sight of boot lid.If there is a kind of application PEPS system to coordinate car body control module, allow car owner not need just can open with manual manipulation car trunk open system and the automatic open method of a kind of boot of boot, the auto Life that will greatly be convenient for people to.
[utility model content]
Thereby primary and foremost purpose of the present utility model is to provide a kind of car trunk automatic opening system of opening according to this car trunk by external action such as sensor device human body skirts.
Another object of the present utility model is to provide a kind of sensor device for the system of last object.
For realizing this object, the utility model adopts following technical scheme:
A kind of car trunk automatic opening system, comprising: the sensor device that is installed on automobile tail; Be electrically connected and be installed on central control module on automobile with described sensor device, for the authentication module for described central control module certification car owner identity information, and boot control module for driving car tail case lid to open; Described sensor device comprises control module, at least two capacitive sensing parts that are linear structure that are electrically connected with this control module; Adjacent two described capacitive sensing parts along installed surface at certain intervals apart from almost parallel setting; The capacitance variation of the described multiple capacitive sensing parts of described control module detecting, in the time that capacitance changes, send command signal to described central control module, described central control module is after to the success of described authentication module authentication, send and drive signal to described boot control module, to be opened by this this car tail case lid of boot control module control according to this command signal.
Each capacitive sensing part of described sensor device is installed in the plane or curved surface that automobile tail inner side provides.
Each capacitive sensing part of described sensor device is installed on automobile insulation material rear bumper medial surface.
In described sensor device, in described control module detects at one time the cycle, while having the capacitance of two or more capacitive sensing parts to be changed, described control module sends described command signal to described central control module just now.
Preferably, in the time that the capacitance change curve of described two or more capacitive sensing parts is consistent with predetermined set in given accuracy rating, described control module sends described command signal to described central control module just now.
Preferably, when the capacitance change curve of described two or more capacitive sensing parts is consistent with predetermined set respectively in given accuracy rating, and when the capacitance change curve of two or more capacitive sensing parts is consistent in given accuracy rating, described control module sends described command signal to described central control module just now.
Preferably, each capacitive sensing part includes the conductor that pair of parellel arranges, and this extends to form micro-electric capacity in the same way to conductor.
Preferably, each capacitive sensing part, near itself and the position that described control module is connected, is arranged with shielding part interference to this part with shielding external interference source.
The distance of adjacent two capacitive sensing parts is 5-20cm.
A kind of sensor device, comprises control module, at least two capacitive sensing parts that are linear structure that are electrically connected with this control module; Adjacent two described capacitive sensing parts along installed surface at certain intervals apart from almost parallel setting; Described control module is detected multiple capacitive sensing parts by due to external interference source and the capacitance causing changes, and in the time that capacitance changes, sends and characterizes the command signal that capacitance changes and use to external unit.
Described control module is in it detects at one time the cycle, and while having the capacitance of two or more capacitive sensing parts to be changed, described control module sends described command signal to external unit just now.
Further, in the time that the capacitance change curve of described two or more capacitive sensing parts is consistent with predetermined set in given accuracy rating, described control module sends described command signal to external unit just now.
Further, when the capacitance change curve of described two or more capacitive sensing parts is consistent with predetermined set respectively in given accuracy rating, and when the capacitance change curve of two or more capacitive sensing parts is consistent in given accuracy rating, described control module sends described command signal to external unit just now.
Each capacitive sensing part includes the conductor that pair of parellel arranges, and this extends to form micro-electric capacity in the same way to conductor.
Each capacitive sensing part, near itself and the position that described control module is connected, is arranged with shielding part interference to this part with shielding external interference source.
Compared with prior art, the utility model possesses following advantage:
1, car trunk automatic opening system application small capacitance of the present utility model detects principle, can spacer insulator detection of obstacles and judge the human body skirt action message within the scope of 0cm-30cm by two or more capacitive sensing parts, and then open the boot lid of car trunk.Meanwhile, many capacitive sensings part synchronously detects, and can accurately judge signal source, prevents false triggering.
2, car trunk automatic opening system of the present utility model also takes full advantage of the contactless identity authentication function of PEPS system, by the combination of sensor device and Intelligent key, determine whether to realize skirt opening automobile boot, strengthened thus the security of car trunk automatic opening system of the present utility model.
3, capacitive sensing part of the present utility model is made up of flexible material conductor, can be with the bending of installed surface shape, and adaptability is good, is easy to fix.Can carry out encapsulation process, reach the effect of complete waterproof simultaneously.
4, sensor device of the present utility model is installed on rear bumper medial surface, good airproof performance, is easy to waterproof.
[brief description of the drawings]
Fig. 1 is the structural representation of car trunk automatic opening system of the present utility model;
Fig. 2 is the structural representation of sensor device of the present utility model;
Fig. 3 is the structural representation of the first capacitive sensing part of the present utility model, and the second capacitive sensing part of the present utility model is identical with the structure of the first capacitive sensing part;
Fig. 4 is the structural representation that sensor device of the present utility model is installed on rear bumper;
Fig. 5 is the use schematic diagram of car trunk automatic opening system of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing and exemplary embodiment, the utility model is further described, wherein in accompanying drawing, identical label all refers to identical parts.In addition, if the detailed description of known technology is for illustrating that feature of the present utility model is unnecessary, by its omission.
Refer to Fig. 1, car trunk automatic opening system of the present utility model, comprise: the sensor device 100 that is installed on automobile insulator rear bumper medial surface, be electrically connected and be installed on central control module on automobile with described sensor device 100, for the authentication module for described central control module certification car owner 14 identity informations, and boot control module for driving car tail case lid 15 to open.Incorporated by reference to Fig. 2, described sensor device 100 comprises control module 1, multiple for example two capacitive sensing parts (2 that are linear structure that are electrically connected with this control module 1 respectively; 3), adjacent two described capacitive sensing parts along installed surface in the plane of sustained height or the plane of differing heights at certain intervals apart from almost parallel setting.
For being equipped with the vehicle that enters and start system without key, due to vehicle difference, its PEPS controller mainly contains two kinds of mounting meanss: the one, and described PEPS controller is integrated in the vehicle-mounted computer of former vehicle; Another kind is to configure and enter and startup system without key on existing vehicle, and this enters with the PEPS controller 16 that starts system and be connected with vehicle-mounted computer without key.Therefore, in car trunk automatic opening system of the present utility model, described central control module comprises the PEPS controller 16 that concentrates on vehicle-mounted computer, or described central control module comprises vehicle-mounted computer and the PEPS controller 16 being connected with described vehicle-mounted computer.PEPS controller 16 due to what play in fact control action in the utility model, needs for convenience, described central control module can be considered PEPS controller 16, and represents syndeton and the principle of work of the described central control module of explanation in this car trunk automatic opening system with PEPS controller 16 hereinafter.
In the utility model, described authentication module is the Intelligent key 18 that car owner 14 is that carry and described PEPS system matches.
In order to realize the annexation between described PEPS controller 16 and described Intelligent key 18, described PEPS controller 16 is also connected with low-frequency antenna 17 and high frequency antenna (not shown), with low-frequency antenna (not shown) in described Intelligent key 18 and described high frequency antenna (not shown) correspondence establishment communication link to carry out signal transmission.In addition, described authentication module is interpreted as that those skilled in the art can realize flexibly, can carry out two-way communication and differentiate to reach authority with PEPS controller 16 any member of object.
The boot actuator 20 that described boot control module comprises BCM19 and controlled by this BCM19, described BCM19 is connected communication by CAN bus with PEPS controller 16.Certainly, those skilled in the art also can be considered as same member by described BCM19 and boot actuator 20, thereby or directly control described boot actuator 20 by described PEPS controller 16 boot actuator 20 is considered as to boot control module (19,20).That is to say, so-called boot control module, in the utility model, be interpreted as that those skilled in the art can realize flexibly, the electric signal unpacking sign that is derived from PEPS controller 16 is converted to the Electricity and machine conversion building blocks of function that drives described boot lid 15 to carry out mechanical breakdown action.
1 detecting of described control module this to capacitive sensing part by due to external interference source and the capacitance causing changes, in the time that capacitance changes, control module 1 sends command signal to described PEPS controller 16, PEPS controller 16 activates low-frequency antenna 17, described low-frequency antenna 17 is launched low frequency signal and is received to activate car owner 14 Intelligent key 18 with it to the built-in aerial of Intelligent key 18, Intelligent key 18 is with PEPS controller 16 then set up high-frequency signal passage and carry out authentication to complete authentication procedure, after the Intelligent key 18 being activated is successful by PEPS controller 16 authentications, described PEPS controller 16 sends and drives the car body controller 19 of signal to described boot control module according to this command signal, drive boot actuator 20 to open this car tail case lid 15 with the car body controller 19 by this boot control module.
Two capacitive sensing parts (2 in described sensing device 100; 3), utilize micro-capacitance principle, mutually close with it external interference source is made to the variation feedback in capacitance.Capacitive sensing part is installed in the plane or curved surface that automobile tail inner side provides.Mounting structure in conjunction with aforementioned sensing device 100 on rear bumper 13, because rear bumper 13 is generally the installment state perpendicular to ground, so provide interior lateral surface, so two capacitive sensing parts can be arranged on the medial surface that rear bumper provides.Because capacitive sensing part is linear structure, be wire or banded conductor formation, generally adopt flexible wire to realize, there is extensible feature of arranging flexibly, thereby can adapt to the change of shape of rear bumper 13 medial surfaces, fixing with plastic plate button or electrical adhesive tape.
In theory, when described two capacitive sensing parts be arranged in parallel, the detecting effect of sensor device 100 is the most accurate.But the plane providing due to automobile tail inner side or curved surface exist in the installation process that is unfavorable for factor that sensor device 100 is installed or sensor device 100 and have alignment error, cause described two capacitive sensing parts can not strict parallel installation.Therefore, described two capacitive sensing parts almost parallel in the error range of demarcating is installed and is also allowed, and described error range can be demarcated according to the actual service condition of sensor device by those skilled in the art.
As previously mentioned, capacitive sensing part 2 is made up of flexible material conductor, and then two wires are closed up and extend and arrange in the same way, forms the arranged side by side relation that arranges, and this is applied to voltage to conductor, and this form micro-electric capacity to conductor (9,10).In theory, a capacitive sensing part only needs a wire can form over the ground micro-electric capacity, but is combined and obviously can be strengthened the stability of micro-electric capacity by two wires, thereby improves the degree of accuracy detecting.
Control module 1 in described sensor device, as previously mentioned, mainly play the external interference source whether detection exists the capacitance of interference capacitors induction pieces to change, and the character of external interference source is made a determination, to determine whether to exist the unpacking action instruction of human body, thereby external unit is provided and characterizes the signal that has this instruction.This control module 1 comprises power module, signal processing module, Logic control module and adjustment of sensitivity module.
Refer to Fig. 2, described electric power source pair of module input voltage carries out lowering and stabilizing blood pressure processing, for the work of whole sensor device 100 provides power support.Preferably, control module 1 is provided with positive source input end VDD and power cathode input end GND, described positive source input end VDD connects by wire 4 positive source that PEPS controller 16 provides, and the power cathode input end GND of control module 1 connects by wire 5 power cathode that PEPS controller 16 provides.Based on being accustomed to car of general car owner 14, car owner 14 is generally comparatively comfortable at skirt within the scope of rear bumper 30cm, also in order to make car owner 14 skirt action more accurately detected, described adjustment of sensitivity module can make the detection distance of sensor device adjustable in the scope of 0cm-30cm.The capacitance variations signal that described signal processing module detects the first capacitive sensing part 2 and the second capacitive sensing part 3 carries out the baseband signal processing such as filtering, amplification, and simulating signal after treatment can be used by logic controller or the identification of rear class control system.Described Logic control module carries out logic judgement to signal processing module signal after treatment, and the result of logic judgement is outputed to PEPS controller 16.
In addition, refer to Fig. 4, in present embodiment, because control module 1 is arranged on the position of tailstock side, and the installed surface with a certain distance from capacitive sensing part also has, each capacitive sensing part can not normal induction tailstock near middle near the part at itself and described control module 1 link position place the interference of external interference source, but the capacitance of this part also can change, the capacitance variation of this part has formed a kind of noise signal.In order to eliminate the impact of above-mentioned noise signal, each capacitive sensing part (2; 3) near itself and the position that described control module 1 is connected, be arranged with shielding part (not shown) to shield the interference of external interference source to this part.Certainly, above-mentioned shielding part is optional, and those skilled in the art can also shield the interference of external interference source to this part by software processing method.
Refer to Fig. 4, in present embodiment, described sensor device 100 comprises the first capacitive sensing part 2, the second capacitive sensing part 3 and control module 1.Whether described the first capacitive sensing part 2 and the second capacitive sensing part 3 there is undesired signal for detection of outside, and described control module 1 is for judging whether undesired signal derives from the skirt action of human body.
Refer to Fig. 5, in general skirt situation, the foot areas that people's physical efficiency enters in described sensor device 100 induction ranges is below mid calf, is commonly considered as sole and ankle position, therefore the distance of adjacent two capacitive sensing parts should be in sole length range, in the scope of 5cm-20cm.
When car owner 14 is in the scope from rear bumper 30cm when skirt, from car owner 14 sole and ankle near the induction range of described capacitive sensing part to leaving the process of its induction range, first the first capacitive sensing part 2 detects undesired signal, its capacitance starts to rise, then the second capacitive sensing part 3 detects this undesired signal, and its capacitance also rises.In the time that sole and ankle enter the induction range of capacitive sensing part completely, the capacitance of described capacitive sensing part reaches maximal value; In the time that sole and ankle leave the induction range of capacitive sensing part gradually, the capacitance of described capacitive sensing part is also along with sole and leaving of ankle and be reduced to minimum.
The rule of utilizing in theory the change procedure of above-mentioned capacitance to fall after rising, can determine external interference source, that is can realize the purpose of this utility model.But the utility model can provide more excellent improvement.Particularly, because described sensor device 100 is to utilize small capacitance to detect principle to carry out input, described capacitive sensing part is equivalent to the positive electrode of capacity plate antenna, the external conditions such as earth conductor such as people, animal, the rainwater of close capacitive sensing part are equivalent to the negative electrode of capacity plate antenna, if external condition Change Example as animal pass by the bottom of car or rainwater through the tailstock, two capacitive sensing parts (2; 3) can sense external interference signals, two capacitive sensing parts (2; 3) capacitance all can change, and this car trunk automatic opening system just exists the hidden danger of being opened by false triggering.
The first strengthens that to detect the means of effect be mainly by realizing with the mode that empirical data compares detecting data: the sole moving taking skirt and ankle are from the induction region that enters capacitive sensing part to the induction region that leaves capacitive sensing part as a time cycle, this time cycle can be taken the circumstances into consideration to pre-determine by those skilled in the art, thus, cycle is interior by control module 1 examinations at one time, if amplitude and the time of the variation of the capacitance of the first capacitive sensing part 2 and/or the second capacitive sensing part 3 are consistent with predetermined set in given accuracy rating, control module 1 judges that this undesired signal derives from the action of human body skirt, and export a command signal to PEPS control module 16.The amplitude of described capacitance variation and the relation between the time, can be characterized or be interpreted as that by those skilled in the art skirt moves to capacitive sensing part (2; 3) the capacitance change curve that impact causes, and described predetermined set can be demarcated according to the actual service condition of sensor device 100, particularly, those skilled in the art by experiment, determine that common skirt action is from starting the length to the time cycle finishing, and common skirt is moved to caused capacitance change and be characterized by capacitance change curve according to aforementioned manner, and for the default error range allowing of follow-up testing process, be also the more given accuracy rating between follow-up and predetermined capacitance change curve.Based on this, when detection, if in this periodic regime predetermined time, two capacitive sensing part (or any one capacitive sensing parts, can be selected flexibly by those skilled in the art) successively present capacitance and change, and change by it curve characterizing and be close with original predetermined capacitance change curve, approaching degree is in described given accuracy rating, can think that so in this case both are consistent, can confirm to detect skirt action.Please note, alleged capacitance change curve herein, be use numerical value concept image know-why is described, and those skilled in the art are to understanding of the present utility model, do not should be understood to tangible curve, being interpreted as can be for the representation of any other form of curve construction relation.Lower same.Described the first capacitive sensing part 2 and the second capacitive sensing part 3 jointly cooperative detection to meet the external interference signals of above-mentioned resolution principle, also but any one is separately for this judgement, when in cycle all there is variation in the capacitance of the first capacitive sensing part 2 and/or the second capacitive sensing part 3 at one time, described control module 1 can send command signal to described PEPS controller 16, to inform that control module 1 has skirt action to produce.
For fear of misinterpretation, the means of the second enhancing detection effect are mainly that the mode by the capacitance delta data (curve) of two capacitive sensing parts is compared realizes:
Within cycle at the same time, when variation has all occurred the capacitance of the first capacitive sensing part 2 and the second capacitive sensing part 3, and the capacitance change curve of capacitive sensing part is consistent with predetermined set respectively in given accuracy rating, when the capacitance change curve of two capacitive sensing parts is mutually consistent in given accuracy rating simultaneously, described control module 1 sends described command signal to described PEPS controller 16 just now, thereby reach the object of the undesired signal of getting rid of non-human skirt action generation, and then avoid this car trunk automatic opening system by the possibility of false triggering, improve security.Here alleged given accuracy rating, with reference to aforementioned, can be determined by the default error range of those skilled in the art.
Influence error scope that the above given accuracy rating can not complete parallel installation be caused by the error range of the comprehensive capacitive sensing part of those skilled in the art, two capacitive sensing parts etc. quantizes, and described predetermined set is that those skilled in the art demarcate according to the actual service condition of sensor device 100.
Two kinds of above enhancements, both can select separately an application, also can jointly apply, and can be determined flexibly by those skilled in the art.
Refer to Fig. 2, thus, described control module 1 is provided with at least one signal output part, described signal output part can be digital signal output end D_SIGNAL or analog signal output A_SIGNAL, and described at least one signal output part connects respectively the corresponding input input end of PEPS controller 16 by digital signal output line 7 and/or analog signal output line 6, send a command signal to PEPS controller 16.
Refer to Fig. 1, from above announcement, by two capacitive sensing parts (2 of sensor device 100; 3) human action is detected, can determine whether and have skirt action by its control module 1, exist after skirt action definite, provide command signal to described PEPS controller 16, by PEPS controller 16 according to this command signal, and after to the successful authentication validated user of Intelligent key 18, send and drive signal to boot control module, drive car tail case lid 15 to open.
In addition, in car trunk automatic opening system of the present utility model, described sensor device 100 is except being arranged on automobile insulation material rear bumper medial surface, can also be by those skilled in the art as required also through many experiments, be arranged at flexibly other positions of automobile tail, so that particularly skirt or sweep foot-propelled and do to open boot lid and be as the criterion of the limb action of the human body that this car trunk automatic opening system senses according to its sensor device 100.
It is pointed out that sensor device of the present utility model can be used alone, for judging human body limb action, as for the utilization of the follow-up other side of the testing result to its control module 1, belong to the category that those skilled in the art can bring into play flexibly.
In addition, the utility model also comprises the automatic open method of a kind of car trunk, and it implements above-mentioned car trunk automatic opening system, comprises the following steps:
(1) whether described sensor device 100 is detected has the capacitance of at least two capacitive sensing parts to change;
(2), in the time of the change of the capacitance of capacitive sensing part described in described sensor device 100 detects two or more, send command signal to described PEPS controller 16.
In this embodiment, the undesired signal false triggering that non-human skirt action produces in order to prevent this car trunk automatic opening system from being changed by other external conditions and open boot lid 15, when sensor device 100 detects described two capacitive sensing parts (2; 3) capacitance is all changed, and two capacitive sensing parts (2; 3) when capacitance change curve meets predetermined set in given accuracy rating, this undesired signal just controlled unit 1 is judged to be skirt action, and control module 1 just sends command signal to described PEPS controller 16.
(3) in order to prevent car trunk cover, other people maliciously open, and car trunk automatic opening system of the present utility model should authenticate car owner's 14 identity, and under the successful condition of authentication, just boot lid 15 can be opened.Be specially, described PEPS controller 16 receives this command signal, and after to the 18 authentications successes of described Intelligent key, sends and drive signal to open to control car tail case lid 15 to described boot control module (19,20).
The automatic open method of car trunk of the present utility model, is easy to implement and has higher security.
Car owner's 14 general references of the present utility model, by the people of PEPS controller 16 to Intelligent key 18 successful authentications, are refered in particular to validated user.
Car trunk automatic opening system of the present utility model can be suitable for to be installed on and use the vehicle that enters and start system without key.
In sum, the utility model is by starting the automobile of system without key the sensor device based on capacitance induction principle of particular design is provided for being equipped with, can realize at automobile tail human body skirt and moving, coordinate the legal authentication procedure that starts system without key, realize the object of validated user convenient operation unlatching boot.
Although shown exemplary embodiments more of the present utility model above, but it should be appreciated by those skilled in the art that, in the situation that not departing from principle of the present utility model or spirit, can make a change these exemplary embodiments, scope of the present utility model is limited by claim and equivalent thereof.
Claims (9)
1. a car trunk automatic opening system, comprising: the sensor device that is installed on automobile tail; Be electrically connected and be installed on central control module on automobile with described sensor device, for the authentication module for described central control module certification car owner identity information, and boot control module for driving car tail case lid to open; It is characterized in that:
Described sensor device comprises control module, at least two capacitive sensing parts that are linear structure that are electrically connected with this control module; Adjacent two described capacitive sensing parts along installed surface at certain intervals apart from almost parallel setting;
The capacitance variation of the described multiple capacitive sensing parts of described control module detecting, in the time that capacitance changes, send command signal to described central control module, described central control module is after to the success of described authentication module authentication, send and drive signal to described boot control module, to be opened by this this car tail case lid of boot control module control according to this command signal.
2. car trunk automatic opening system according to claim 1, is characterized in that, each capacitive sensing part of described sensor device is installed in the plane or curved surface that automobile tail inner side provides.
3. car trunk automatic opening system according to claim 2, is characterized in that, each capacitive sensing part of described sensor device is installed on the medial surface of automobile insulation material rear bumper.
4. car trunk automatic opening system according to claim 1, is characterized in that, each capacitive sensing part includes the conductor that pair of parellel arranges, and this extends to form micro-electric capacity in the same way to conductor.
5. car trunk automatic opening system according to claim 1, is characterized in that, each capacitive sensing part, near itself and the position that described control module is connected, is arranged with shielding part interference to this part with shielding external interference source.
6. car trunk automatic opening system according to claim 1, is characterized in that, the distance of adjacent two capacitive sensing parts is 5-20cm.
7. a sensor device, is characterized in that: comprise control module, at least two capacitive sensing parts that are linear structure that are electrically connected with this control module; Adjacent two described capacitive sensing parts along installed surface at certain intervals apart from almost parallel setting; Described control module is detected multiple capacitive sensing parts by due to external interference source and the capacitance causing changes, and in the time that capacitance changes, sends and characterizes the command signal that capacitance changes and use to external unit.
8. sensor device according to claim 7, is characterized in that, each capacitive sensing part includes the conductor that pair of parellel arranges, and this extends to form micro-electric capacity in the same way to conductor.
9. sensor device according to claim 7, is characterized in that, each capacitive sensing part, near itself and the position that described control module is connected, is arranged with shielding part interference to this part with shielding external interference source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004926.3U CN203733175U (en) | 2014-01-03 | 2014-01-03 | Automatic automobile trunk opening system and sensor device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004926.3U CN203733175U (en) | 2014-01-03 | 2014-01-03 | Automatic automobile trunk opening system and sensor device thereof |
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| CN203733175U true CN203733175U (en) | 2014-07-23 |
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| CN201420004926.3U Expired - Fee Related CN203733175U (en) | 2014-01-03 | 2014-01-03 | Automatic automobile trunk opening system and sensor device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745514A (en) * | 2014-01-03 | 2014-04-23 | 广东铁将军防盗设备有限公司 | Automatic opening system and method for automobile trunk, and sensor device |
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- 2014-01-03 CN CN201420004926.3U patent/CN203733175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745514A (en) * | 2014-01-03 | 2014-04-23 | 广东铁将军防盗设备有限公司 | Automatic opening system and method for automobile trunk, and sensor device |
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