CN108226564A - A kind of radio-type vehicle speed sensor - Google Patents
A kind of radio-type vehicle speed sensor Download PDFInfo
- Publication number
- CN108226564A CN108226564A CN201611262636.9A CN201611262636A CN108226564A CN 108226564 A CN108226564 A CN 108226564A CN 201611262636 A CN201611262636 A CN 201611262636A CN 108226564 A CN108226564 A CN 108226564A
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- China
- Prior art keywords
- hall element
- signal
- vehicle speed
- speed sensor
- electrically connected
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention discloses a kind of radio-type vehicle speed sensor, is used to solve not receiving the defects of signal leads to not have the records of distance by the log when post equipment can not be using signal source and poor signal in the prior art.Radio-type vehicle speed sensor of the present invention includes shell, shaft, circuit board, Hall element and wireless transmitter module；Shaft one end is connected on the turbine assembly of automobile gearbox, and the other end is connect with Hall element；Hall element and circuit board electrical connection, and wireless transmitter module is electrically connected to Hall element；Hall element is used to the mechanical signal that shaft rotates being converted into electric impulse signal；Wireless transmitter module is used to the electric impulse signal that Hall element generates being modulated into wireless signal, receives and uses for the post equipment that wireless receiving module is housed on automobile.The present invention is easy to operate, can avoid cumbersome wiring and Interface Matching problem, can also provide accurate signal source for equipment of having the records of distance by the log.
Description
Technical field
The present invention relates to a kind of vehicle speed sensor more particularly to a kind of radio-type vehicle speed sensor.
Background technology
Vehicle speed sensor is used to detecting the speed of electronic automobile, control computer with input signal come control engine idling,
Other work(such as the opening and closing of the torque converter locking, automatic gearbox gear shifting and cooling fan of engine of automatic transmission and cruise constant speed
Energy.
It is measuring vehicle speed, distance mearuring equipment instrument it is well known that in conventional automobile bodies electrical system（Such as mileage/speed
Table, Tachographs, taximeter, special train cell phone application etc.）The speed of offer（Mileage）Signal source is by following two
Kind of pattern is realized：
First, vehicle-mounted vehicle speed sensor.The mechanical signal of vehicle wheel rotation can be converted into electric impulse signal by the equipment,
It is sent in above-mentioned instrument and meter by conducting wire.These instrument and meters extrapolate vapour according to the pulse number received in the unit interval
The mileage and speed of vehicle traveling；
2nd, GPS receiver.The position signal that the equipment is sent out by receiving geostationary satellite, indirect measuring go out the position of automobile
It moves（That is mileage travelled）；In conjunction with time parameter, travel speed is calculated.
Although both the above pattern is widely applied, but all there are it is fatal the shortcomings that：
For mode sensor, great advantage is to have the records of distance by the log accurately；But it due to using wire transmission mode, needs to receive signal
Post equipment（Instrument and meter）With corresponding hardware interface；Since vehicle is various, in the feelings of no unified interface standard
It under condition, installs and bothers very much, and when same transducing signal will be sent to multiple receivers, need to draw mostly with conducting wire
It is connect respectively with these receivers, this connection mode causes interior conducting wire connection complexity, and occupied space is big, harness is of high cost；
In addition, having the records of distance by the log software for the cell phone application occurred in recent years, the signal source can not be even more used completely -- because mobile phone does not have phase
The interface answered.
For GPS patterns, its great advantage is need not to consider interface problem, passes through the subsidiary GPS of equipment itself
Module can very easily receive satellite-signal, and calculate mileage and speed according to these signals；But also there are one very big for it
The shortcomings that, accuracy of exactly having the records of distance by the log can not show a candle to mode sensor, in the section of poor signal, it may appear that error of having the records of distance by the log, Mou Xiete
Different section（Such as in tunnel）, signal is not received completely even more, so as to have the records of distance by the log.
To sum up, it is necessary to design a kind of radio-type vehicle speed sensor to make up drawbacks described above.
Invention content
The present invention proposes a kind of radio-type vehicle speed sensor, and letter can not be used by being used to solve post equipment in the prior art
The defects of signal leads to not have the records of distance by the log is not received when number source and poor signal.The present invention is easy to operate, can avoid cumbersome
Wiring and Interface Matching problem, accurate signal source can also be provided for equipment of having the records of distance by the log.
The technical proposal of the invention is realized in this way：
The present invention discloses a kind of radio-type vehicle speed sensor, including vehicle speed sensor and wireless transmitter module, vehicle speed sensor
Including shell, shaft, circuit board and Hall element；Shaft one end is connected on the turbine assembly of automobile gearbox, the other end
It is connect with Hall element；Hall element and circuit board electrical connection, and wireless transmitter module is electrically connected to Hall element；Hall element
For the mechanical signal that shaft rotates to be converted into electric impulse signal；Wireless transmitter module is used for the electric arteries and veins for generating Hall element
Signal modulation is rushed into wireless signal, receives and uses for the post equipment that wireless receiving module is housed on automobile.
Wherein, wireless transmitter module is bluetooth module or WIFI module.
Wherein, bluetooth module be equipped with bluetooth module circuit, bluetooth module circuit include resistance R1, diode D1, capacitance C1,
Capacitance C2, triode Q1, quartz oscillator X1 and adjustable resistance XR；Resistance R1 one end is electrically connected with diode D1 one end,
Its other end is electrically connected to the diode D1 other ends, the base stage of triode Q1 and quartz oscillator X1 one end, and resistance R1
The node of one end and diode D1 one end junction is electrically connected to Hall element；The emitter ground connection of triode Q1, triode Q1
Collector be electrically connected to capacitance C1 one end and one end pin of adjustable resistance XR；The capacitance C1 other ends are electrically connected to the day of automobile
Wiretap；The other end pin of adjustable resistance XR is connected to the Switching Power Supply of automobile；The quartz oscillator X1 other ends are electrically connected
It is connected to the interim pins of capacitance C2 one end and adjustable resistance XR；The capacitance C2 other ends are grounded.
Wherein, the post equipment equipped with wireless receiving module includes Tachographs, screen display speedometer, mobile phone on automobile
The vehicle-mounted APP of APP, computer and taximeter.
Compared with prior art, the invention has the advantages that：
The present invention is by increasing wireless transmitter module, without wiring, with regard to that mobile unit can be made easily to get speed（Mileage）
Signal.
Radio-type vehicle speed sensor of the signal that post equipment on automobile of the present invention obtains on vehicle, so it is counted
Journey accuracy is much higher than the signal from GPS.
The electric impulse signal that Hall element generates is modulated into wireless signal by the present invention by wireless transmitter module, due to this
The presence of wireless signal so that the virtual units such as all kinds of vehicle-mounted APP softwares can replace various physical equipments completely, and use
The virtual units such as all kinds of vehicle-mounted APP softwares replace physical equipment, can substantially reduce cost.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of radio-type vehicle speed sensor of the present invention；
Fig. 2 is the circuit diagram of bluetooth module circuit of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 1 and FIG. 2, the present invention discloses a kind of radio-type vehicle speed sensor, including vehicle speed sensor and wireless hair
Module is penetrated, vehicle speed sensor includes shell, shaft, circuit board and Hall element；Shaft, circuit board, Hall element are installed in
In shell, and shaft extends to outer side；Shaft one end is connected on the turbine assembly of automobile gearbox, the other end with suddenly
You connect element；Hall element and circuit board electrical connection, and wireless transmitter module is electrically connected to Hall element；Hall element is used for
The mechanical signal that shaft rotates is converted into electric impulse signal；Wireless transmitter module, which is used for the electric pulse for generating Hall element, to be believed
Number wireless signal is modulated into, receives and use for the post equipment that wireless receiving module is housed on automobile.
The post equipment equipped with wireless receiving module includes Tachographs, screen display speedometer, mobile phone on automobile of the present invention
The vehicle-mounted APP of APP, computer and taximeter, those skilled in the art can also install other postpositions according to actual demand
Equipment only need to install wireless receiving module on post equipment, can realize that signal is connect with wireless transmitter module.The present invention
Wireless transmitter module is bluetooth module or WIFI module, therefore the post equipment on automobile is in the wireless of radio-type vehicle speed sensor
Bluetooth may be used in connection mode, can also use WIFI, and those skilled in the art can use others according to actual demand
Radio connection.
As shown in Fig. 2, bluetooth module of the present invention is equipped with bluetooth module circuit, bluetooth module circuit includes resistance R1, two poles
Pipe D1, capacitance C1, capacitance C2, triode Q1, quartz oscillator X1 and adjustable resistance XR；Resistance R1 one end and diode D1
One end is electrically connected, and the other end is electrically connected to the diode D1 other ends, the base stage of triode Q1 and quartz oscillator X1 mono-
End, and resistance R1 one end and the node of diode D1 one end junction are electrically connected to Hall element；The emitter of triode Q1 connects
Ground, the collector of triode Q1 are electrically connected to capacitance C1 one end and one end pin of adjustable resistance XR；The capacitance C1 other ends are electrically connected
It is connected to the duplexer of automobile；The other end pin of adjustable resistance XR is connected to the Switching Power Supply of automobile；Quartz oscillator
The X1 other ends are electrically connected to the interim pins of capacitance C2 one end and adjustable resistance XR；The capacitance C2 other ends are grounded.Quartz of the invention
The frequency of crystal oscillator X1 is 315MHz, and the resistance value of the model 2SC3357 of triode Q1, resistance R1 is 47K Europe, capacitance C1
Specification be 4.7P, the model IN4148 of diode D1.
The present invention increases a wireless transmitter module in traditional vehicle speed sensor（Can be bluetooth or
WIFI）, become radio-type vehicle speed sensor, operation principle is being generated in traditional sensors by Hall element
Electric impulse signal is modulated into wireless signal（Bluetooth or WIFI）, it receives and uses for the post equipment that wireless receiving module is housed,
Both cumbersome wiring and Interface Matching problem can be avoided, accurate signal source can also be provided for equipment of having the records of distance by the log；For having
Even more extremely convenient for the smart mobile phone of radio receiver, the signal development that engineer can utilize mobile phone to receive goes out
Miscellaneous APP softwares, without depending on GPS signal.
The representative speedometer for automobile that the present invention can generate Hall element（Speed）Electric impulse signal be modulated into aerogram
Number launch, which can be as the signal source of having the records of distance by the log of all kinds of mobile phones or vehicle-mounted computer APP softwares, therefore the present invention can be wide
General popularization and application, in vehicle-mounted equipment of having the records of distance by the log（Such as Tachographs, taximeter or screen display speedometer etc.）Or vehicle mounted electric
The exploitation design of brain APP is given those skilled in the art and is more guided, and makes it possible virtual reality, with all kinds of vehicle-mounted APP
The virtual units such as software replace physical equipment, can substantially reduce cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of radio-type vehicle speed sensor, which is characterized in that it includes vehicle speed sensor and wireless transmitter module, speed sensing
Device includes shell, shaft, circuit board and Hall element；Shaft one end is connected on the turbine assembly of automobile gearbox, another
End is connect with Hall element；Hall element and circuit board electrical connection, and wireless transmitter module is electrically connected to Hall element；
Hall element is used to the mechanical signal that shaft rotates being converted into electric impulse signal；
Wireless transmitter module is used to the electric impulse signal that Hall element generates being modulated into wireless signal, wireless for being equipped on automobile
The post equipment of receiving module, which receives, to be used.
2. radio-type vehicle speed sensor as described in claim 1, which is characterized in that wireless transmitter module be bluetooth module or
WIFI module.
3. radio-type vehicle speed sensor as claimed in claim 2, which is characterized in that bluetooth module is equipped with bluetooth module circuit,
Bluetooth module circuit includes resistance R1, diode D1, capacitance C1, capacitance C2, triode Q1, quartz oscillator X1 and adjustable
Resistance XR；
Resistance R1 one end is electrically connected with diode D1 one end, and the other end is electrically connected to the diode D1 other ends, triode Q1
Base stage and quartz oscillator X1 one end, and resistance R1 one end and the node of diode D1 one end junction are electrically connected to Hall
Element；
The emitter ground connection of triode Q1, the collector of triode Q1 are electrically connected to capacitance C1 one end and one end of adjustable resistance XR
Pin；The capacitance C1 other ends are electrically connected to the duplexer of automobile；The other end pin of adjustable resistance XR is connected to driving for automobile
Powered-down source；
The quartz oscillator X1 other ends are electrically connected to the interim pins of capacitance C2 one end and adjustable resistance XR；Capacitance C2 is another
End ground connection.
4. the radio-type vehicle speed sensor as described in any one of claim 1-3, which is characterized in that be equipped on automobile and wirelessly connect
The post equipment for receiving module includes Tachographs, screen display speedometer, cell phone application, the vehicle-mounted APP of computer and taximeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262636.9A CN108226564A (en) | 2016-12-30 | 2016-12-30 | A kind of radio-type vehicle speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262636.9A CN108226564A (en) | 2016-12-30 | 2016-12-30 | A kind of radio-type vehicle speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108226564A true CN108226564A (en) | 2018-06-29 |
Family
ID=62657333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611262636.9A Pending CN108226564A (en) | 2016-12-30 | 2016-12-30 | A kind of radio-type vehicle speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108226564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444456A (en) * | 2019-01-07 | 2019-03-08 | 苏州寻息电子科技有限公司 | A kind of beacon for vehicle speed measuring |
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|---|---|---|---|---|
| US20080303513A1 (en) * | 2007-06-08 | 2008-12-11 | Kelsey-Hayes Company | Wireless active wheel speed sensor |
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|---|---|---|---|---|
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| CN201637755U (en) * | 2010-03-15 | 2010-11-17 | 西安长密汽车电子科技有限公司 | Vehicle speed sensor |
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| CN101894472A (en) * | 2010-07-28 | 2010-11-24 | 浙江中控研究院有限公司 | System and method for acquiring real-time speed information of motor-driven vehicle |
| CN204631065U (en) * | 2015-05-26 | 2015-09-09 | 重庆大学 | A kind of road speed and acceleration measurement device |
| CN105067831A (en) * | 2015-07-17 | 2015-11-18 | 恒信大友（北京）科技有限公司 | CAN-bus rotating speed sensor and data processing method based on CAN bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444456A (en) * | 2019-01-07 | 2019-03-08 | 苏州寻息电子科技有限公司 | A kind of beacon for vehicle speed measuring |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |