CN204178181U - A kind of gear information harvester based on magnetic induction - Google Patents
A kind of gear information harvester based on magnetic induction Download PDFInfo
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- CN204178181U CN204178181U CN201420530962.3U CN201420530962U CN204178181U CN 204178181 U CN204178181 U CN 204178181U CN 201420530962 U CN201420530962 U CN 201420530962U CN 204178181 U CN204178181 U CN 204178181U
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Abstract
The utility model discloses a kind of gear information harvester based on magnetic induction, wherein X-axis magnetic signal generation device, X-axis Magnetic Sensor is for being arranged on the X-direction bottom lever, X-axis gear train one end connects lever, one end connects X-axis magnetic signal generation device, Y-axis Magnetic Sensor, Y-axis magnetic signal generation device is for being arranged on the Y direction bottom lever, Y-axis gear train one end connects lever, one end connects Y-axis magnetic signal generation device, described X-axis Magnetic Sensor, the signal output part of Y-axis Magnetic Sensor connects the signal input part of gear information collector.The utility model is for present situations such as driving school's examination vehicle model are different, vehicle condition is complicated, and by using linear magnetic sensor to measure gear information in real time, gear mechanical aging problem can be solved, and the problem that vehicle shake is rocked with lever, the real-time of Information Monitoring is high, gathers accurately, easy for installation, need not dismantle, greatly reduce after-sales service cost.
Description
Technical field
The utility model belongs to motor vehicle and drives and examine technical field, particularly relates to a kind of gear information harvester.
Background technology
Examine in industry driving, subject three motor road driving efficiency examination system is according to examination vehicle state-evaluation examinee achievement, and judge project of wherein much deducting points needs to gather gear information, gathers gear information accuracy particularly important in systems in which.
Current driving school examination vehicle model is various, vehicle condition is complicated, so accurate acquisition gear information also becomes quite difficulty.Because examination vehicle does not allow to disassemble wheel box construction, gear information collector in current industry is also multifarious, major part adopts spring and lever position contact scheme, state value only has contact and noncontact two states, this spring touching scheme by mechanical wear, value structure is single, lever rocks etc., and factor easily causes erroneous judgement or go here and there shelves phenomenon, cause a large amount of after-sales service work to enterprise, simultaneously gear erroneous judgement is also driven and is examined national standard and do not allow appearance.
Utility model content
The purpose of this utility model is to provide a kind of gear information harvester based on magnetic induction, can accurate acquisition gear information in real time, easy for installation.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of gear information harvester based on magnetic induction, include X-axis magnetic signal generation device, Y-axis magnetic signal generation device, X-axis Magnetic Sensor, Y-axis Magnetic Sensor, gear information collector and power circuit, described X-axis magnetic signal generation device, X-axis Magnetic Sensor is for being arranged on the X-direction bottom lever, X-axis gear train one end connects lever, one end connects X-axis magnetic signal generation device, Y-axis Magnetic Sensor, Y-axis magnetic signal generation device is for being arranged on the Y direction bottom lever, Y-axis gear train one end connects lever, one end connects Y-axis magnetic signal generation device, described X-axis Magnetic Sensor, the signal output part of Y-axis Magnetic Sensor connects the signal input part of gear information collector.
Described X-axis Magnetic Sensor, Y-axis Magnetic Sensor adopt linear hall-effect device.
Described X-axis gear train, Y-axis gear train adopt bracing wire.
Described power circuit includes direct supply conversion chip, anti-reverse diode, filtering circuit, described direct supply conversion chip input power is 12V, output terminal is connected with filtering circuit, and out-put supply is 5V, and the output terminal of direct supply conversion chip is also connected with anti-reverse diode.
Described gear information collector includes A/D convertor circuit, CPU (central processing unit), voltage reference circuit, the signal output part of described A/D convertor circuit connects the signal input part of CPU (central processing unit), and the signal input part of CPU (central processing unit) is also connected with voltage reference circuit.
Described voltage reference circuit includes: power reference chip, the plus earth of power reference chip, connect power supply with reference to pole by a resistance, reference pole is also by capacity earth simultaneously, and the negative electrode of power reference chip connects the signal input part of CPU (central processing unit) by a resistance.
The communication ends of described CPU (central processing unit) is connected with RS232 interface.
The advantage that the utility model has is:
Gear information harvester described in the utility model comprises linear magnetic sensor and gear information collector, the real-time voltage value of Real-time Collection Magnetic Sensor, exports to host computer for judging gear information.For present situations such as driving school's examination vehicle model are different, vehicle condition is complicated, and by using linear magnetic sensor to measure gear information in real time, gear mechanical aging problem can be solved, and the problem that vehicle shake is rocked with lever, the real-time of Information Monitoring is high, gathers accurately, easy for installation, need not dismantle, greatly reduce after-sales service cost.
Power circuit out-put supply is stablized, anti-interference little; Voltage reference circuit error rate is low, and precision is high, ensure that high precision and the accuracy of whole harvester.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of CPU (central processing unit) of the present utility model and voltage reference circuit;
Fig. 2 is the schematic diagram of power circuit of the present utility model and RS232 interface.
Embodiment
The utility model discloses a kind of gear information harvester based on magnetic induction, include X-axis magnetic signal generation device, Y-axis magnetic signal generation device (magnet), X-axis Magnetic Sensor, Y-axis Magnetic Sensor, gear information collector and power circuit, described X-axis magnetic signal generation device, X-axis Magnetic Sensor is for being arranged on the X-direction bottom lever, X-axis gear train one end connects lever, one end connects X-axis magnetic signal generation device, Y-axis Magnetic Sensor, Y-axis magnetic signal generation device is for being arranged on the Y direction bottom lever, Y-axis gear train one end connects lever, one end connects Y-axis magnetic signal generation device, described X-axis Magnetic Sensor, the signal output part of Y-axis Magnetic Sensor connects the signal input part of gear information collector.Wherein said X-axis Magnetic Sensor, Y-axis Magnetic Sensor adopt AH49E linear hall-effect device; X-axis gear train, Y-axis gear train are bracing wire.
As shown in Figure 1, described gear information collector includes A/D convertor circuit, CPU (central processing unit), voltage reference circuit, CPU (central processing unit) U1 in the present embodiment adopts macrocrystalline company up-to-date STC15 series IAP15F2K61S2 chip, inside has 10 high-speed ADC functions (being namely integrated with described A/D convertor circuit), the signal input part (pin 6, ADIN7) of CPU (central processing unit) U1 is connected with voltage reference circuit.10 high-speed ADC function combined high precision voltage reference circuits of CPU (central processing unit) inside are used to change the analog voltage that X-axis Magnetic Sensor, Y-axis Magnetic Sensor export into digital signal.J1, J2, J5 are connection terminal, and electric capacity C1, C3 are power filtering capacitor.The pin 15 of CPU (central processing unit) U1 is connected with the indicating circuit of resistance R4 and light emitting diode D3 series connection, is the pilot lamp for pointing out serial data stream.
Described voltage reference circuit includes: power reference chip U3, the plus earth of power reference chip U3, power supply+5V is connected by resistance R1 with reference to pole, also pass through electric capacity C10 ground connection with reference to pole simultaneously, the negative electrode of power reference chip U3 connects the signal input part (pin 6, ADIN7) of CPU (central processing unit) U 1 by resistance R2.Voltage reference chip used uses TL431, and export 2.5V, error 0.4%, precision voltage reference is that the high-accuracy stable ADC voltage transitions of CPU (central processing unit) inside provides a favorable security.
As shown in Figure 2, described power circuit includes direct supply conversion chip U4, anti-reverse diode D1, filtering circuit, described direct supply conversion chip U4 input power is 12V, output terminal is connected with filtering circuit, filtering circuit is made up of inductance L 1, L2, electric capacity C11 and resistance R5, R8), out-put supply is 5V, and the output terminal of direct supply conversion chip U4 is also connected with anti-reverse diode D1.Direct supply conversion chip U4 uses MC34063A DC-DC power source chip, and it is that whole gear information collector is powered that input 12V exports 5V, and be less than 50mV by LC filtering circuit output ripple, output design power is 1W.
The communication ends (TXD1, RXD1) of described CPU (central processing unit) U1 is connected with RS232 interface, and described RS232 interface adopts SP3232EEN serial port chip, and electric capacity C4-C8, resistance R6, R7 are its peripheral circuit.The serial ports TTL of CPU (central processing unit) U1 carries out being converted to RS232 interface by SP3232EEN serial port chip, and the pin 7,8 of SP3232EEN serial port chip is convenient to be connected with host computer, and gathered voltage signal is exported to host computer.
Driver must promote lever when operating engage a gear or gear shift and enter gear opposite position, because lever has corresponding step movement rule in engage a gear process, the utility model make use of linear magnetic sensor, wherein X-axis Magnetic Sensor is for being arranged on the X-direction bottom lever, X-axis gear train one end connects lever, one end connects X-axis magnetic signal generation device, Y-axis Magnetic Sensor, Y-axis magnetic signal generation device is for being arranged on the Y direction bottom lever, Y-axis gear train one end connects lever, one end connects Y-axis magnetic signal generation device, when lever moves, then pull bracing wire, bracing wire then drives X-axis magnetic signal generation device, Y-axis magnetic signal generation device produces corresponding displacement, then X-axis Magnetic Sensor, Y-axis Magnetic Sensor just senses different magnitudes of voltage, thus output linearity magnitude of voltage, gear information collector real-time reception X-axis Magnetic Sensor, the analog voltage of Y-axis Magnetic Sensor, inner ADC analog to digital converter is used to convert analog voltage to digital signal, host computer is uploaded to by RS232 interface.Host computer carries out judgement gear according to voltage digital signal.The utility model solves gear mechanical aging problem by using linear magnetic sensor, greatly reduces after-sales service cost.
Claims (7)
1. the gear information harvester based on magnetic induction, it is characterized in that: include X-axis magnetic signal generation device, Y-axis magnetic signal generation device, X-axis Magnetic Sensor, Y-axis Magnetic Sensor, gear information collector and power circuit, described X-axis magnetic signal generation device, X-axis Magnetic Sensor is for being arranged on the X-direction bottom lever, X-axis gear train one end connects lever, one end connects X-axis magnetic signal generation device, Y-axis Magnetic Sensor, Y-axis magnetic signal generation device is for being arranged on the Y direction bottom lever, Y-axis gear train one end connects lever, one end connects Y-axis magnetic signal generation device, described X-axis Magnetic Sensor, the signal output part of Y-axis Magnetic Sensor connects the signal input part of gear information collector.
2. as claimed in claim 1 based on the gear information harvester of magnetic induction, it is characterized in that: described X-axis Magnetic Sensor, Y-axis Magnetic Sensor adopt linear hall-effect device.
3. as claimed in claim 2 based on the gear information harvester of magnetic induction, it is characterized in that: described X-axis gear train, Y-axis gear train adopt bracing wire.
4. the gear information harvester based on magnetic induction as described in claim 1 or 2 or 3, it is characterized in that: described power circuit includes direct supply conversion chip, anti-reverse diode, filtering circuit, described direct supply conversion chip input power is 12V, output terminal is connected with filtering circuit, out-put supply is 5V, and the output terminal of direct supply conversion chip is also connected with anti-reverse diode.
5. as claimed in claim 4 based on the gear information harvester of magnetic induction, it is characterized in that: described gear information collector includes A/D convertor circuit, CPU (central processing unit), voltage reference circuit, the signal output part of described A/D convertor circuit connects the signal input part of CPU (central processing unit), and the signal input part of CPU (central processing unit) is also connected with voltage reference circuit.
6. as claimed in claim 5 based on the gear information harvester of magnetic induction, it is characterized in that: described voltage reference circuit includes: power reference chip, the plus earth of power reference chip, power supply is connected by a resistance with reference to pole, also pass through capacity earth with reference to pole, the negative electrode of power reference chip connects the signal input part of CPU (central processing unit) by a resistance simultaneously.
7., as claimed in claim 5 based on the gear information harvester of magnetic induction, it is characterized in that: the communication ends of described CPU (central processing unit) is connected with RS232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530962.3U CN204178181U (en) | 2014-09-16 | 2014-09-16 | A kind of gear information harvester based on magnetic induction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420530962.3U CN204178181U (en) | 2014-09-16 | 2014-09-16 | A kind of gear information harvester based on magnetic induction |
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| CN204178181U true CN204178181U (en) | 2015-02-25 |
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| CN201420530962.3U Active CN204178181U (en) | 2014-09-16 | 2014-09-16 | A kind of gear information harvester based on magnetic induction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884976A (en) * | 2015-12-15 | 2017-06-23 | 南京奥联汽车电子电器股份有限公司 | A kind of disconnected ground wire solves switch Hall gear interference circuit |
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2014
- 2014-09-16 CN CN201420530962.3U patent/CN204178181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884976A (en) * | 2015-12-15 | 2017-06-23 | 南京奥联汽车电子电器股份有限公司 | A kind of disconnected ground wire solves switch Hall gear interference circuit |
| CN106884976B (en) * | 2015-12-15 | 2018-07-06 | 南京奥联汽车电子电器股份有限公司 | A kind of disconnected ground wire solves switch Hall gear interference circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180402 Address after: 450000 Jinshui District, Zhengzhou, Zhengzhou, Henan Province, No. 65, No. 65, No. 712, Jiangshan business circle, No. three Patentee after: Zhengzhou Jia Jie Information Technology Co., Ltd. Address before: 450000 C4 building, A District, Henan Outsourcing Industrial Park, Yang Jinlu 9, Jinshui District, Zhengzhou, Henan Patentee before: ZHENGZHOU JAZIJE TRANSPORT TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |