CN211633260U - Device for detecting steering wheel contact, steering wheel and steering wheel protective sleeve - Google Patents
Device for detecting steering wheel contact, steering wheel and steering wheel protective sleeve Download PDFInfo
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- CN211633260U CN211633260U CN201921932532.3U CN201921932532U CN211633260U CN 211633260 U CN211633260 U CN 211633260U CN 201921932532 U CN201921932532 U CN 201921932532U CN 211633260 U CN211633260 U CN 211633260U
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Abstract
The application provides a device, steering wheel and steering wheel protective sheath that detect steering wheel contact. The device comprises a first excitation electrode, a second excitation electrode, a first measurement electrode and a second measurement electrode. The first excitation electrode is disposed at the first connection portion and is disposed along the first contact point to the second contact point. The second excitation electrode is arranged on the first connecting portion, arranged along the first contact point to the second contact point and insulated from the first excitation electrode. The first measuring electrode is arranged on the first connecting portion, arranged along the first contact point to the second contact point and insulated from the first exciting electrode. The second measuring electrode is arranged on the first connecting portion, arranged along the first contact point to the second contact point and respectively insulated from the second excitation electrode and the first measuring electrode. The first excitation electrode, the second excitation electrode, the first measuring electrode and the second measuring electrode are respectively used for being connected with a controller.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a device for detecting steering wheel contact, a steering wheel and a steering wheel protective sleeve.
Background
Along with the development of social economy, the number of automobiles in China is increased day by day, convenience is brought, and meanwhile, the guarantee of safe driving is very important. At present, the traffic accidents caused by fatigue driving and heart-like sudden diseases account for about fifty percent of the traffic accidents each year. Therefore, it is very important to monitor the heart rate and body fat parameters of the driver in real time, process the parameters, display whether the body state of the driver is good or not in real time, and perform corresponding prompt and warning according to whether fatigue driving exists or not.
At present, the traditional detection device detects the heart rate of the driver by placing detection electrode points at the upper end and the lower end of a specific position of a steering wheel. However, the detection mode puts a strict requirement on the gesture placement of the driver, and the signal sampling can be finished only when the finger or the palm is placed at a specific position. The gesture is put very randomly when driver fatigue driving appears, appears omitting the detection this moment easily, can not accomplish the purpose of real-time warning.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a device for detecting steering wheel contact, a steering wheel and a steering wheel protective sleeve, aiming at the problems that the existing fatigue driving detection device can sample signals only by placing fingers or palms at specific positions by a driver, detection is omitted, and real-time warning cannot be achieved.
An apparatus for detecting a contact of a steering wheel, the steering wheel having a radial direction, and a first contact point and a second contact point of the radial direction extension line with the steering wheel dividing the steering wheel into a first connection portion and a second connection portion, the apparatus comprising:
a first excitation electrode disposed at the first connection portion and disposed along the first contact point to the second contact point;
a second excitation electrode disposed at the first connection portion, disposed along the first contact point to the second contact point, and insulated from the first excitation electrode;
the first measuring electrode is arranged on the first connecting part, arranged along the first contact point to the second contact point and insulated from the first exciting electrode; and
the second measuring electrode is arranged on the first connecting part, arranged along the first contact point to the second contact point and respectively insulated from the second exciting electrode and the first measuring electrode;
the first excitation electrode, the second excitation electrode, the first measurement electrode and the second measurement electrode are respectively used for being connected with a controller.
In one embodiment, the first excitation electrode and the first measurement electrode are respectively wound on the first connecting portion, and the first excitation electrode and the first measurement electrode are arranged in a staggered manner.
In one embodiment, the second excitation electrode and the second measurement electrode are respectively wound on the second connecting portion, and the second excitation electrode and the second measurement electrode are arranged in a staggered manner.
In one embodiment, the first excitation electrode covers one side of the first connection portion, and the first measurement electrode covers one side of the first connection portion away from the first excitation electrode.
In one embodiment, the second excitation electrode covers one side of the second connection portion, and the second measurement electrode covers one side of the second connection portion, which is far away from the second excitation electrode.
In one embodiment, the first excitation electrode and the second excitation electrode are symmetrically arranged about the radial direction;
the first measuring electrode and the second measuring electrode are symmetrically arranged about the radial direction.
In one embodiment, the second excitation electrode and the first excitation electrode, the second measurement electrode and the first measurement electrode, the first excitation electrode and the first measurement electrode, and the second excitation electrode and the second measurement electrode are insulated by shielding insulating layers.
In one embodiment, the apparatus for detecting a steering wheel contact further includes:
and the warning device is arranged on the steering wheel and is electrically connected with the controller.
A steering wheel comprising an apparatus for detecting steering wheel contact as described in any preceding embodiment.
In one embodiment, the steering wheel further comprises:
and the controller is electrically connected with the first measuring electrode and the second measuring electrode respectively.
A steering wheel protective cover comprising a device for detecting steering wheel contact as described in any of the above embodiments.
Compared with the prior art, above-mentioned device, steering wheel and steering wheel protective sheath that detects the steering wheel contact will first excitation electrode with first measuring electrode is followed first contact point and second contact point set up respectively in first connecting portion will second excitation electrode with second measuring electrode is followed first contact point and second contact point set up respectively in second connecting portion will simultaneously first excitation electrode first measuring electrode second excitation electrode with second measuring electrode is insulating each other and is set up, puts the most of positions at the steering wheel at driver's both hands, can be in order to realize the contact between palm or finger and the electrode to humanized accord with driver's custom, can accomplish real-time signal collection again, avoid appearing omitting the detection, and then improve the reliability of real-time warning.
Drawings
FIG. 1 is a front view of an apparatus for detecting steering wheel contact according to an embodiment of the present disclosure;
FIG. 2 is a rear view of an apparatus for detecting steering wheel contact according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an apparatus for detecting a steering wheel contact according to an embodiment of the present disclosure;
FIG. 4 is a side view of an apparatus for detecting steering wheel contact according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an apparatus for detecting a steering wheel contact according to another embodiment of the present disclosure;
fig. 6 is a schematic diagram of a steering wheel according to an embodiment of the present application.
10 device for detecting steering wheel contact
11 steering wheel
12 first connection part
13 second connecting part
101 radial direction
102 excitation source
110 first excitation electrode
120 second excitation electrode
210 first measuring electrode
211 shield insulation layer
220 second measuring electrode
300 controller
400 warning device
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, an embodiment of the present application provides an apparatus 10 for detecting a steering wheel contact, where the steering wheel 11 has a radial direction 101, and a first contact point and a second contact point of an extension line of the radial direction 101 and the steering wheel 11 divide the steering wheel 11 into a first connection portion 12 and a second connection portion 13. The device comprises: first excitation electrode 110, second excitation electrode 120, first measurement electrode 210, and second measurement electrode 220. The first excitation electrode 110 is disposed at the first connection portion 12 and is disposed along the first contact point to the second contact point. The second excitation electrode 120 is disposed on the second connection portion 13 and along the first contact point to the second contact point.
The second excitation electrode 120 is insulated from the first excitation electrode 110. The first measuring electrode 210 is disposed on the first connecting portion 12 and along the first contact point to the second contact point. The first measuring electrode 210 is insulated from the first excitation electrode 110. The second measuring electrode 220 is disposed on the second connecting portion 13 and along the first contact point to the second contact point. The second measuring electrode 220 is insulated from the second excitation electrode 120 and the first measuring electrode 210, respectively. The first excitation electrode 110, the second excitation electrode 120, the first measurement electrode 210 and the second measurement electrode 220 are respectively used for connecting with a controller 300.
In one embodiment, the first excitation electrode 110 may be directly disposed on the first connection portion 12, that is, may be indirectly disposed on the first connection portion 12. Similarly, the arrangement between the second excitation electrode 120 and the second connection portion 13, between the first measurement electrode 210 and the first connection portion 12, and between the second measurement electrode 220 and the second connection portion 13 can be the same as that described in the above embodiment. That is, each of the excitation electrode and the measurement electrode may or may not directly contact the first connection portion or the second connection portion, for example, with another material interposed therebetween.
The above-mentioned arrangement along the first contact point to the second contact point means that the arrangement direction of each electrode is arranged along the circumferential direction of the first connecting portion or the second connecting portion, and the starting point and the ending point of the arrangement position of each electrode are not limited in this embodiment.
In one embodiment, both the first excitation electrode 110 and the second excitation electrode 120 may be electrically connected to the excitation source 102. In one embodiment, the excitation source 102 generates an excitation signal that forms a current between the first excitation electrode 110 and the second excitation electrode 120 through an impedance loop between the driver's hands (i.e., an impedance loop of the upper body) when the palms or fingers of the driver's hands contact the first excitation electrode 110 and the second excitation electrode 120, respectively. At this time, the impedance value of the upper half of the driver can be measured by matching the first measuring electrode 210 and the second measuring electrode 220 (that is, the first measuring electrode 210 and the second measuring electrode 220 are connected in parallel to two ends of the human body) and detecting the voltage drop of the excitation signal after flowing through the human body, and then the physiological parameters of the body fat rate, the heart rate, the fatigue degree and the like of the driver can be obtained through processing, wherein the method for obtaining the body fat rate, the heart rate and the fatigue degree of the driver according to the impedance value can be realized by the conventional technology.
In one embodiment, the first measuring electrode 210 and the second measuring electrode 220 cooperate to detect a voltage drop of the excitation signal after passing through the human body and obtain a voltage drop signal. That is, the first measuring electrode 210 and the second measuring electrode 220 can be connected in parallel to both ends of the human body. That is, the first measuring electrode 210 is in contact with the left hand of the human body, and the second measuring electrode 220 is in contact with the right hand of the human body; or, the second measuring electrode 220 is in contact with the left hand of the human body, and the first measuring electrode 210 is in contact with the right hand of the human body; therefore, the voltage drop generated after the excitation signal flows through the upper half of the human body is detected, and the voltage drop signal is obtained.
In one embodiment, the excitation source 102 may be disposed on the device for detecting steering wheel contact 10. In one embodiment, the excitation source 102 may also be disposed on the steering wheel 11. In one embodiment, the excitation source 102 may be disposed at a center console of the vehicle, or may be disposed at other locations of the vehicle, as long as the excitation signal can be generated. In one embodiment, the excitation source 102 may also be integrated within the controller 300.
In one embodiment, the controller 300 may be disposed on the apparatus for detecting steering wheel contact 10. In one embodiment, the controller 300 may also be disposed on the steering wheel 11. In one embodiment, the controller 300 may be disposed at a center console of the vehicle, or may be disposed at other positions of the vehicle, as long as it can be electrically connected to at least the first measuring electrode and the second measuring electrode of the device for detecting steering wheel contact 10. The controller 300 obtains the pressure drop signal, and measures the impedance value of the upper half of the driver according to the pressure drop signal, so as to process and obtain the physiological parameters of the driver, such as the body fat rate, the heart rate, the fatigue degree and the like.
In the present embodiment, the first excitation electrode 110 and the first measurement electrode 210 are respectively disposed on the first connection portion 12 along the first contact point and the second contact point, the second excitation electrode 120 and the second measurement electrode 220 are respectively disposed on the second connection portion 13 along the first contact point and the second contact point, and the first excitation electrode 110, the first measurement electrode 210, the second excitation electrode 120, and the second measurement electrode 220 are insulated from each other. No matter which position of steering wheel is held to driver's both hands, all can cover above-mentioned four electrodes simultaneously, therefore driver's both hands are put in the overwhelming majority of positions of steering wheel, all can realize the contact between palm or finger and the electrode to humanized's habit that accords with the driver more can accomplish real-time signal collection again, avoids appearing omitting the detection, and then with the reliability that improves driver's health state monitoring and real-time warning.
In one embodiment, the steering wheel 11 has a radial direction 101, the radial direction 101 being the same as the direction of travel of the vehicle. In one embodiment, the first contact point and the second contact point of the extension line of the radial direction 101 and the steering wheel 11 divide the steering wheel 11 into the first connecting portion 12 and the second connecting portion 13 by: the extension line of the radial direction 101 is in contact with the steering wheel 11, that is, the contact points are the first contact point and the second contact point, the steering wheel 11 is divided into the first connecting portion 12 and the second connecting portion 13 by the first contact point and the second contact point, and the second connecting portion 13 is fixedly connected with the first connecting portion 12.
In one embodiment, the shape of the first excitation electrode 110 is not limited, and may be any one of a strip, a grid, and a sheet. It is to be understood that the manner of disposing the first excitation electrode 110 on the first connection portion 12 is not limited, as long as the first excitation electrode 110 is opposite to the first connection portion 12. In one embodiment, the first excitation electrode 110 may be disposed on the first connection portion 12 by means of adhesion. In one embodiment, the first excitation electrode 110 may also be disposed on the first connection portion 12 by winding.
In one embodiment, the first excitation electrode 110 is disposed on the first connection portion 12 and along the first contact point to the second contact point, which means that: the first excitation electrode 110 is disposed at the first connection portion 12, and is disposed along a circumferential direction of the first connection portion 12 from the first contact point to the second contact point. In one embodiment, the first excitation electrode 110 may be continuously disposed along the first contact point to the second contact point, i.e., the first excitation electrode 110 is a whole. In one embodiment, the first excitation electrode 110 may also be spaced along the first contact point to the second contact point, and the spacing distance is less than a set distance. Specifically, the set distance may be set according to actual requirements. Preferably, the set distance is smaller than the width of the adult palm, and may be set to 0.1cm to 10cm, for example, and may be set to 0.5cm to 3 cm.
In one embodiment, the second excitation electrode 120 may be in the shape of a strip, a mesh, a sheet, or the like. In one embodiment, the second excitation electrode 120 is disposed on the second connection portion 13 in the manner described in the above embodiments. In one embodiment, the second excitation electrode 120 is disposed on the second connection portion 13 and disposed along the first contact point to the second contact point, which means that: the second excitation electrode 120 is disposed on the second connection portion 13, and is disposed along a circumferential direction of the second connection portion 13 from the first contact point to the second contact point.
In one embodiment, the second excitation electrode 120 may be continuously disposed from the first contact point to the second contact point, i.e., the second excitation electrode 120 is a whole. In one embodiment, the second excitation electrode 120 may also be spaced along the first contact point to the second contact point by a distance less than the set distance. Preferably, the set distance is smaller than the width of the adult palm, and may be set to 0.1cm to 10cm, for example, and may be set to 0.5cm to 3 cm.
It is to be understood that the insulating arrangement between the second excitation electrode 120 and the first excitation electrode 110 is not limited, as long as the second excitation electrode 120 and the first excitation electrode 110 are insulated from each other. In one embodiment, the second excitation electrode 120 and the first excitation electrode 110 may be insulated by a gap, and the gap is smaller than a set gap. Preferably, the set distance is smaller than the width of the adult palm, and may be set to 0.1cm to 10cm, for example, and may be set to 0.5cm to 3 cm. In one embodiment, the second excitation electrode 120 and the first excitation electrode 110 may also be insulated by a shielding insulating layer 211.
In one embodiment, the first measuring electrode 210 may be in the shape of a strip, a grid, a sheet, or the like. In one embodiment, the first measuring electrode 210 is disposed on the first connecting portion 12 in the manner described in the above embodiments. In one embodiment, the first measuring electrode 210 is disposed on the first connecting portion 12 and disposed along the first contact point to the second contact point, which means that: the first measuring electrode 210 is disposed on the first connecting portion 12, and is disposed along a circumferential direction of the first connecting portion 12 from the first contact point to the second contact point.
In one embodiment, the first measuring electrode 210 may be continuously disposed along the first contact point to the second contact point, i.e. the first measuring electrode 210 is an integral body. In one embodiment, the first measuring electrode 210 may also be spaced along the first contact point to the second contact point, and the spacing distance is less than the set distance. Preferably, the set distance is smaller than the width of the adult palm, and may be set to 0.1cm to 10cm, for example, and may be set to 0.5cm to 3 cm.
It is understood that the insulation between the first measuring electrode 210 and the first excitation electrode 110 is not limited, as long as the first measuring electrode 210 is insulated from the first excitation electrode 110. In one embodiment, the first measurement electrode 210 and the first excitation electrode 110 may be separated by a gap to provide an insulating arrangement. In one embodiment, the first measurement electrode 210 and the first excitation electrode 110 may also be insulated from each other by a shielding insulating layer 211 (as shown in FIG. 4). Specifically, the shielding insulating layer 211 may be a shielding layer at the edge of the steering wheel 11. The shielding insulation layer 211 may also be a conventional insulation layer.
In one embodiment, the second measuring electrode 220 may be in the shape of a strip, a grid, a sheet, or the like. In one embodiment, the second measuring electrode 220 is disposed on the second connecting portion 13 in the manner described in the above embodiments. In one embodiment, the second measuring electrode 220 is disposed on the second connecting portion 13 and disposed along the first contact point to the second contact point, which means: the second measuring electrode 220 is disposed on the second connecting portion 13, and is disposed along a circumferential direction of the second connecting portion 13 from the first contact point to the second contact point.
In one embodiment, the second measuring electrode 220 may be disposed continuously along the first contact point to the second contact point, i.e., the second excitation electrode 120 is a whole. In one embodiment, the second measuring electrode 220 may also be spaced along the first contact point to the second contact point by a distance less than the set distance. Preferably, the set distance is smaller than the width of the adult palm, and may be set to 0.1cm to 10cm, for example, and may be set to 0.5cm to 3 cm.
In one embodiment, the second measurement electrode 220 is insulated from the second excitation electrode 120 and the first measurement electrode 210, respectively, as described in the previous embodiments. In one embodiment, the first measuring electrode 210 and the second measuring electrode 220 cooperate to detect a voltage drop of the excitation signal after passing through the human body and obtain a voltage drop signal. That is, the first measuring electrode 210 and the second measuring electrode 220 can be connected in parallel to both ends of the human body. That is, the first measuring electrode 210 is in contact with the left hand of the human body, and the second measuring electrode 220 is in contact with the right hand of the human body; or, the second measuring electrode 220 is in contact with the left hand of the human body, and the first measuring electrode 210 is in contact with the right hand of the human body; therefore, the voltage drop of the excitation signal is detected, and the voltage drop signal is obtained.
Through second measuring electrode 220 with first excitation electrode 110 cooperation can make driver's both hands put the contact between palm or finger and the electrode all can be realized to most positions of steering wheel 11 to humanized the habit that accords with the driver more can accomplish real-time signal collection again, avoids appearing omitting the detection, and then improves the reliability of real-time warning.
In one embodiment, the human body may be equivalent to a resistance-capacitance network, and the excitation signal flowing through the network may generate a voltage drop signal proportional to the impedance of the network, and the voltage drop signal may be measured by the first measuring electrode 210 and the second measuring electrode 220 cooperating with each other. Then, the controller 300 may convert the equivalent impedance of the resistance-capacitance network according to the voltage drop signal, and convert the equivalent impedance of the human body into the components of the human body by querying a preset table, so as to calculate the health condition and fatigue degree of the limb or tissue, and further, the controller 300 may determine whether to trigger an alarm according to the voltage drop signal.
In one embodiment, when the driver holds the steering wheel 11, the excitation electrodes (i.e. the first excitation electrode 110 and the second excitation electrode 120) on the steering wheel 11 and the fingers or the palm of the hand form a closed loop, so as to form a voltage difference on the equivalent rc network of the human body. At this time, the second measuring electrode 220 and the first measuring electrode 210 are matched to measure the voltage drop signal of the equivalent rc network, and then the controller 300 can perform rectification, filtering, analog-to-digital conversion and other processes on the voltage drop signal, so as to obtain the voltage drop value on the human body impedance. And then further compared to a pressure drop threshold to determine whether to trigger the corresponding alarm device.
Referring to fig. 5, in one embodiment, the first excitation electrode 110 is wound around the first connecting portion 12. The first measuring electrode 210 is wound around the first connecting portion 12. The first excitation electrode 110 and the first measurement electrode 210 are arranged alternately. In one embodiment, the second excitation electrode 120 is wound around the second connection portion 13. The second measuring electrode 220 is wound around the second connecting portion 13. The second excitation electrode 120 and the second measurement electrode 220 are alternately disposed.
The above-mentioned detection function can also be realized by interleaving and winding the first excitation electrode 110 and the first measurement electrode 210 around the first connection portion 12, and interleaving and winding the second excitation electrode 120 and the second measurement electrode 220 around the second connection portion 13. Through this kind of crisscross winding structure promptly, can make driver's both hands put the contact between palm or finger and the electrode can be realized to the overwhelming majority position of steering wheel 11 to humanized the habit that accords with the driver more can accomplish real-time signal collection again, avoids appearing omitting the detection, and then improves the reliability of real-time warning.
In one embodiment, the first excitation electrode 110 covers one side of the first connection portion 12. The first measuring electrode 210 covers the side of the first connecting portion 12 away from the first excitation electrode 110. In one embodiment, the second excitation electrode 120 covers a side of the second connection portion 13, and the second measurement electrode 220 covers a side of the second connection portion 13 away from the second excitation electrode 120. Through the mode of this kind of cover, also can make driver's both hands put the contact between palm or finger and the electrode can be realized to the overwhelming majority position of steering wheel 11, accomplishes real-time signal acquisition, avoids appearing omitting the detection, and then improves the reliability of real-time warning.
In one embodiment, the first excitation electrode 110 and the second excitation electrode 120 are symmetrically disposed about the radial direction 101. The first measuring electrode 210 and the second measuring electrode 220 are arranged symmetrically with respect to the radial direction 101. In one embodiment, symmetrical with respect to the radial direction 101 means that the steering wheel 11 is arranged to be centered symmetrically with respect to the axial center.
In one embodiment, the apparatus 10 for detecting a steering wheel contact further comprises: a warning device 400. The warning device 400 is provided to the steering wheel 11. The warning device 400 is electrically connected to the controller 300. In one embodiment, the warning device 400 may also be fixed at other locations in the vehicle, such as a center console. In one embodiment, the warning device 400 may be a buzzer alarm or a voice warning device or a vibratory alarm.
Referring to fig. 6, an embodiment of the present application provides a steering wheel 11, which includes a device 10 for detecting a steering wheel contact according to any of the above embodiments and a controller 300. The controller 300 is electrically connected to the first measuring electrode 210 and the second measuring electrode 220, respectively. In one embodiment, the controller 300 may be disposed on a bracket of the steering wheel 11. The alarm may be cancelled by the controller 300.
To sum up, this application is through inciting somebody to action first excitation electrode 110 with first measuring electrode 210 is followed first contact point and second contact point set up respectively in first connecting portion 12, will second excitation electrode 120 with second measuring electrode 220 is followed first contact point and second contact point set up respectively in second connecting portion 13, will simultaneously first excitation electrode 110 first measuring electrode 210 second excitation electrode 120 with second measuring electrode 220 is insulating the setting each other, puts the most of positions at the steering wheel in driver's both hands, can be in order to realize the contact between palm or finger and the electrode to humanized accord with driver's custom, can accomplish real-time signal collection again, avoid appearing omitting the detection, and then improve the reliability of real-time warning.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An apparatus for detecting a steering wheel contact, applied to a steering wheel (11), the steering wheel (11) having a radial direction (101), and a first contact point and a second contact point of an extension line of the radial direction (101) and the steering wheel (11) divide the steering wheel (11) into a first connection portion (12) and a second connection portion (13), the apparatus comprising:
a first excitation electrode (110) disposed at the first connection portion (12) and disposed along the first contact point to the second contact point;
a second excitation electrode (120) provided on the second connection portion (13), provided along the first contact point to the second contact point, and provided insulated from the first excitation electrode (110);
a first measuring electrode (210) arranged at the first connection portion (12) and arranged along the first contact point to the second contact point, insulated from the first excitation electrode (110); and
a second measuring electrode (220) disposed at the second connecting portion (13), along the first contact point to the second contact point, and insulated from the second excitation electrode (120) and the first measuring electrode (210), respectively;
the first excitation electrode (110), the second excitation electrode (120), the first measuring electrode (210) and the second measuring electrode (220) are respectively used for connecting a controller (300).
2. The apparatus for detecting a steering wheel contact according to claim 1, wherein the first excitation electrode (110) and the first measurement electrode (210) are respectively wound around the first connecting portion (12), and the first excitation electrode (110) and the first measurement electrode (210) are alternately disposed.
3. The apparatus for detecting a steering wheel contact according to claim 1, wherein the second excitation electrode (120) and the second measurement electrode (220) are respectively wound around the second connection portion (13), and the second excitation electrode (120) and the second measurement electrode (220) are alternately disposed.
4. The device for detecting a steering wheel contact according to claim 1, wherein the first excitation electrode (110) covers a side of the first connection portion (12), and the first measurement electrode (210) covers a side of the first connection portion (12) remote from the first excitation electrode (110).
5. The device for detecting a steering wheel contact according to claim 1, wherein the second excitation electrode (120) covers a side of the second connection portion (13), and the second measurement electrode (220) covers a side of the second connection portion (13) remote from the second excitation electrode (120).
6. The device for detecting a steering wheel contact according to claim 1, wherein the first excitation electrode (110) and the second excitation electrode (120) are symmetrically arranged with respect to the radial direction (101);
the first measuring electrode (210) and the second measuring electrode (220) are arranged symmetrically with respect to the radial direction (101).
7. The device for detecting steering wheel contact according to any of claims 1-6, wherein the second excitation electrode (120) and the first excitation electrode (110), the second measurement electrode (220) and the first measurement electrode (210), the first excitation electrode (110) and the first measurement electrode (210), and the second excitation electrode (120) and the second measurement electrode (220) are insulated by a shielding insulation layer (211).
8. A steering wheel, characterized in that it comprises a device (10) for detecting a steering wheel contact according to any one of claims 1-7.
9. The steering wheel of claim 8, further comprising:
a controller (300) electrically connected to the first measuring electrode (210) and the second measuring electrode (220), respectively.
10. A steering wheel protective cover, characterized in that it comprises a device (10) for detecting a steering wheel contact according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932532.3U CN211633260U (en) | 2019-11-11 | 2019-11-11 | Device for detecting steering wheel contact, steering wheel and steering wheel protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932532.3U CN211633260U (en) | 2019-11-11 | 2019-11-11 | Device for detecting steering wheel contact, steering wheel and steering wheel protective sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211633260U true CN211633260U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921932532.3U Active CN211633260U (en) | 2019-11-11 | 2019-11-11 | Device for detecting steering wheel contact, steering wheel and steering wheel protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211633260U (en) |
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2019
- 2019-11-11 CN CN201921932532.3U patent/CN211633260U/en active Active
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