CN203630151U - Multifunctional automobile engine revolving speed measuring device - Google Patents
Multifunctional automobile engine revolving speed measuring device Download PDFInfo
- Publication number
- CN203630151U CN203630151U CN201320819205.3U CN201320819205U CN203630151U CN 203630151 U CN203630151 U CN 203630151U CN 201320819205 U CN201320819205 U CN 201320819205U CN 203630151 U CN203630151 U CN 203630151U
- Authority
- CN
- China
- Prior art keywords
- sensor
- signal
- microprocessor
- processing circuit
- signal processing
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
A multifunctional automobile engine revolving speed measuring device comprises a sensor signal processing circuit, a microprocessor and a revolving speed display circuit. A signal input end of the sensor signal processing circuit comprises three paths of sensor input ports which are connected with a voltage sensor, a vibration sensor and a sound sensor. The sensor signal processing circuit is provided with a signal source conversion switch and outputs a signal to the microprocessor through the signal source conversion switch. The signal source conversion switch can be used for selecting a source of the sensor signal processed by the microprocessor, so that a user can measure the revolving speeds of automobiles of various models with the automobile engine revolving speed measuring device and the automobile engine revolving speed measuring device is convenient to use.
Description
Technical field
The utility model relates to motor car engine checkout equipment, particularly the measurement mechanism of measured automobiles engine speed.
Background technology
Existing rotating speed of automobile engine measurement mechanism mainly contains three kinds, one is to adopt voltage sensor, utilize voltage sensor senses engine high pressure ignition signal or cell voltage vibration frequency to measure rotating speed, another kind is to adopt vibration transducer, rotating speed is measured in the mechanical vibration that utilize vibration transducer to detect engine, also having one is to adopt sound transducer, and the noise that utilizes sound transducer to detect engine running is measured rotating speed.These three kinds of rotating speed of automobile engine measurement mechanisms all have certain limitation, there is no a kind of automobile that can be applicable to all models.Still there is no in the prior art that a kind of user must select different rotation-speed measuring devices according to the type of automobile by above-mentioned three kinds of products that rotation-speed measuring device combines, it is very not convenient to use.
Utility model content
The purpose of this utility model is to provide a kind of multi-purpose vehicle(MPV) measurement of engine rotate speed device, and this rotation-speed measuring device can be broken through the limitation of above-mentioned three kinds of rotation-speed measuring devices.
The utility model is achieved in that multi-purpose vehicle(MPV) measurement of engine rotate speed device, comprise sensor signal processing circuit, microprocessor and rotating speed display circuit, the signal output part of sensor signal processing circuit is connected with the signal input part of microprocessor, the signal output part of microprocessor is connected with rotating speed display circuit, the signal input part of sensor signal processing circuit has three-way sensor input port, three-way sensor input port connects respectively voltage sensor, vibration transducer and sound transducer, sensor signal processing circuit is provided with signal source switch, sensor signal processing circuit passes through signal source switch to microprocessor output signal.
The utility model has the advantages that: integrated three kinds of sensors in same rotating speed of automobile engine measurement mechanism, and can select the handled sensor signal of microprocessor source by signal source switch, user is as long as just can measure the rotating speed of various model automobiles with a rotating speed of automobile engine measurement mechanism, easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of embodiment mono-of the present utility model;
Fig. 2 is the circuit block diagram of embodiment bis-of the present utility model.
Embodiment
Embodiment mono-
Referring to Fig. 1, a kind of multi-purpose vehicle(MPV) measurement of engine rotate speed device providing according to the utility model, comprise sensor signal processing circuit, microprocessor and rotating speed display circuit, the signal output part of sensor signal processing circuit is connected with the signal input part of microprocessor, and the signal output part of microprocessor is connected with rotating speed display circuit.The signal input part of sensor signal processing circuit has three-way sensor input port, and three-way sensor input port connects respectively voltage sensor 1, vibration transducer 2 and sound transducer 3.Voltage sensor 1 can be used for detecting engine high pressure ignition signal or cell voltage, and vibration transducer 2 can be used for detecting the mechanical vibration of engine, and sound transducer 3 can be used for detecting the noise that engine running produces.
The inside of sensor signal processing circuit is provided with three road prime amplifiers, low-pass filter and digital to analog converter, is respectively used to process the signal that voltage sensor 1, vibration transducer 2 and sound transducer 3 are picked up, and converts digital signal to.The inside of sensor signal processing circuit is also provided with signal source switch K.Signal source switch K is connected between digital to analog converter and microprocessor.User can select to be input to the signal source of microprocessor by signal source switch K.Microprocessor, according to different signal sources, carries out software processing to the signal of input, analyzes the rotating speed that obtains engine, and the rotating speed recording the most at last shows by rotating speed display circuit.
Embodiment bis-
Referring to Fig. 2, the difference of the present embodiment and embodiment mono-is that the inside of sensor signal processing circuit is only provided with a digital to analog converter, signal source switch K is connected between low-pass filter and digital to analog converter, the signal source shared digital to analog converter in three tunnels.Other structures of the present embodiment are identical with embodiment mono-, repeat no more.
Sensor signal processing circuit described in the utility model, microprocessor and rotating speed display circuit are the divisions of doing from the angle of circuit theory; the hardware that is not limited to narrow sense is divided; for example; although the digital to analog converter in Fig. 1 and Fig. 2 belongs to sensor signal processing circuit; but digital to analog converter and microprocessor can be integrated in same chip, so also belong to protection domain of the present utility model.
Signal source switch K described in the utility model can be mechanical switch, also can be electronic switch, can also be arranged on the soft switch of microprocessor chip inside, for example, by the program of microprocessor, optionally respond the signal on the different pins of microprocessor chip, can play the effect of selecting signal source equally like this.
Claims (1)
1. multi-purpose vehicle(MPV) measurement of engine rotate speed device, comprise sensor signal processing circuit, microprocessor and rotating speed display circuit, the signal output part of sensor signal processing circuit is connected with the signal input part of microprocessor, the signal output part of microprocessor is connected with rotating speed display circuit, it is characterized in that: the signal input part of sensor signal processing circuit has three-way sensor input port, three-way sensor input port connects respectively voltage sensor, vibration transducer and sound transducer, sensor signal processing circuit is provided with signal source switch, sensor signal processing circuit passes through signal source switch to microprocessor output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819205.3U CN203630151U (en) | 2013-12-13 | 2013-12-13 | Multifunctional automobile engine revolving speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819205.3U CN203630151U (en) | 2013-12-13 | 2013-12-13 | Multifunctional automobile engine revolving speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630151U true CN203630151U (en) | 2014-06-04 |
Family
ID=50816613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320819205.3U Expired - Lifetime CN203630151U (en) | 2013-12-13 | 2013-12-13 | Multifunctional automobile engine revolving speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630151U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808008A (en) * | 2015-04-13 | 2015-07-29 | 成都诚邦动力测试仪器有限公司 | Engine revolution speed signal detection system based on lowpass filtering inverting processing |
| CN105974150A (en) * | 2016-06-21 | 2016-09-28 | 核工业理化工程研究院 | Portable multipath synchronous rotating speed tester |
| CN107064541A (en) * | 2017-05-19 | 2017-08-18 | 武汉锐华电气有限公司 | A kind of many executing agency's speed measuring systems |
| GB2550908A (en) * | 2016-05-27 | 2017-12-06 | Perkins Engines Co Ltd | Engine data logger |
| CN107725202A (en) * | 2017-10-10 | 2018-02-23 | 中国第汽车股份有限公司 | The processing unit of tach signal |
-
2013
- 2013-12-13 CN CN201320819205.3U patent/CN203630151U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808008A (en) * | 2015-04-13 | 2015-07-29 | 成都诚邦动力测试仪器有限公司 | Engine revolution speed signal detection system based on lowpass filtering inverting processing |
| GB2550908A (en) * | 2016-05-27 | 2017-12-06 | Perkins Engines Co Ltd | Engine data logger |
| GB2550908B (en) * | 2016-05-27 | 2020-06-10 | Perkins Engines Co Ltd | Engine data logger |
| CN105974150A (en) * | 2016-06-21 | 2016-09-28 | 核工业理化工程研究院 | Portable multipath synchronous rotating speed tester |
| CN107064541A (en) * | 2017-05-19 | 2017-08-18 | 武汉锐华电气有限公司 | A kind of many executing agency's speed measuring systems |
| CN107725202A (en) * | 2017-10-10 | 2018-02-23 | 中国第汽车股份有限公司 | The processing unit of tach signal |
| CN107725202B (en) * | 2017-10-10 | 2019-10-29 | 中国第一汽车股份有限公司 | The processing unit of tach signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203630151U (en) | Multifunctional automobile engine revolving speed measuring device | |
| WO2013004424A3 (en) | Evaluation of resolver sensor signals | |
| ATE463363T1 (en) | THERMAL MONITORING SYSTEM FOR A TIRE | |
| JP2005522373A5 (en) | ||
| CN102175280A (en) | Digitalized vehicle instrument simulating device | |
| CN103760376A (en) | Engine rotating speed measuring instrument based on vibration principle and test method thereof | |
| CN203117225U (en) | Calibration device of rotating speed measuring meter of diesel engine | |
| CN202453202U (en) | Wireless four-wheel position indicator for automobile | |
| CN109204321A (en) | Signal processing method, sliding detection method, the control method of vehicle and device | |
| CN202350909U (en) | Portable vibration measurement device | |
| CN103712678A (en) | Virtue instrument-based automobile simulated vibration low-frequency detection and analysis system | |
| CN102759632B (en) | Device and method for measuring rotational speed of engine based on differential pressure signals of exhaust back pressure | |
| HK1141589A1 (en) | Increased reliability in the processing of digital signals | |
| CN101603972B (en) | Method for measuring yaw velocity and acceleration for automobile stability control system | |
| WO2009057462A1 (en) | Distance measuring device for vehicles | |
| US20120013286A1 (en) | Encoder having function for detecting amount of noise | |
| CN202083707U (en) | Device based on phase difference method to measure ultrasonic wind speed and wind direction | |
| CN103837707B (en) | Portable speed of a motor vehicle sensor pulse simple detection instrument and detection method | |
| CN203689053U (en) | Remote control system for material testing machine | |
| CN202002761U (en) | Torque measuring device of electric actuator using direct-current motor | |
| CN202350904U (en) | Integrated vibration transmitter | |
| CN103955208A (en) | Automobile driving record detection system and method based on CAN bus | |
| CN202710584U (en) | Device for measuring rotational speed of engine based on differential pressure signal of exhaust back pressure | |
| CN201897501U (en) | Minitype three-dimensional vibration testing instrument | |
| CN201434763Y (en) | Universal-type rotational-speed measuring instrument for motor vehicle engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |