CN102332222A - Method and apparatus for implementing automobile teaching signal acquisition services - Google Patents
Method and apparatus for implementing automobile teaching signal acquisition services Download PDFInfo
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- CN102332222A CN102332222A CN201110222683A CN201110222683A CN102332222A CN 102332222 A CN102332222 A CN 102332222A CN 201110222683 A CN201110222683 A CN 201110222683A CN 201110222683 A CN201110222683 A CN 201110222683A CN 102332222 A CN102332222 A CN 102332222A
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Abstract
The invention discloses a method and an apparatus for implementing automobile teaching signal acquisition services, and the method and device are used for converting an analog signal of a measured automobile device into a digital signal capable of being recognized by computers; after the apparatus is running in cooperation with various testing software and control software installed on a networked computer, an effect that all servers and clients on the Internet can carry out actual measurement and fault diagnosis/analysis on electric signals of the measured automobile device connected with the apparatus is realized; and the method comprises the steps such as voltage testing, resistance testing, frequency testing, pulse width testing, waveform analysis, and the like. The apparatus disclosed by the invention is composed of a power supply, a signal conditioning device, a data acquisition device and a control device, wherein the input end of the signal conditioning device is connected with the output end of the measured automobile device, the output end of the signal conditioning device is connected with the input end of the data acquisition device, the output end of the data acquisition device is connected with the input end of the control device, the output end of the control device is connected with a computer cluster, and the control device is provided with a transfer service module.
Description
Technical field
The invention belongs to a kind of automobile teaching method and device, particularly relate to a kind of automobile instructional signal and gather service method and device.
Background technology
In recent years, on the basis that the auto repair education sector constantly develops, along with the widespread use of electronics integrated technology on each assembly parts of automobile, various electronic units are also got up by active use on the Automobile Service teaching aid.On a tested Automobile Service teaching equipment, generally to have tens and even study of hundreds of needs and the electric signal source grasped.Through the practice that these electric signal sources are sampled and measured, let each student understand uninteresting knowwhy sooner.In order to improve efficiency of teaching, existing automobile teaching equipment is through a host computer teaching equipment to be measured mostly, demonstrates to all students; Also have through host computer is connected with network, realize the simple measurement that single student also can carry out teaching equipment in client, but only be the pattern of a kind of single-point single-point.The shortcoming of prior art:
(1) through single-point to the operating mode of single-point, final result still is that a people measures many people and watches, and still can't provide to let each student repeat;
(2) in limited class hour, have only a few student can participate in putting into practice the operation of measurement, form of teaching falls behind, and efficient is low;
(3) can't let the student grasp the method for measurement fast, also can't tamp theoretical foundation, more can't accomplish to let each student reach the teaching standard of skilled operation through measuring repeatedly.
The present invention is the combination through signal regulating device, data collector and control device; A vehicle signal is set gathers service unit; Through with being connected of computer cluster; Can many clients of realization simultaneously the different electrical signals source of an automobile tested device be measured respectively, each client obtains the magnitude of voltage of own measured signal source then.
Signal regulating device is to the instrument of various industrial signal transmittings, conversion, isolation, transportation, computing in automation control system; Can cooperate with various industrial sensors; Fetch parameter signal, the demand that the subscriber's local monitoring remote is gathered is satisfied in the isolation transmit transmission.The data acquisition, the signal that are widely used in fields such as machinery, electrical equipment, telecommunications, electric power, oil, chemical industry, iron and steel, wastewater treatment, building construction transmit industry measurement and control systems such as conversion, PLC, DCS; Be used for improving and replenishment system Simulation with I/O pin function, increase the fiduciary level of system suitability and site environment.Specifically be applied to all kinds of instrument output ports such as pressure, flow, temperature, liquid level, can effectively solve on-the-spot the interference and the instrument port protection, gauge external need not to install the isolation series products.The inner electromagnetic isolation technology that adopts is isolated between input, output and power supply each other; Have good temperature and float the characteristic and the good linearity.The principle of work of signal regulating device is through isolated variable input signal such as alternating voltage, DC voltage, DC current etc.; Zeroing and amplification through internal circuit; Become become be directly proportional with input quantity and isolate each other voltage output or electric current output, and input signal, output signal and power supply are tripartite isolates.Can be widely used in the measuring system in the electric system, with the occasion that is suitable for needing weak electric signal output and isolating with input signal.
Data acquisition claims that again data obtain, and is to utilize a kind of device, from the outside image data of system and be input to an interface of internal system.Data acquisition technology is extensively quoted in every field.Such as camera, microphone all is a metadata acquisition tool.By image data is the various physical quantitys that have been converted into electric signal, like temperature, water level, wind speed, pressure etc., can be simulating signal, also can be digital signal.Gathering generally is sample mode, and certain hour (claiming the sampling period) is to same point data repeated acquisition at interval.The data of gathering are instantaneous value mostly, also an eigenwert in certain period.It is the basis of data acquisition that accurate data measures.The data method for measurement has contact and contactless, and detecting element is varied.No matter which kind of method and element are prerequisite not influence measurand state and measurement environment all, to guarantee the correctness of data.The data acquisition implication is very wide, comprises the collection to planar continuous physical quantity.In computer aided drawing, mapping, design, figure or image digitazation process also can be described as data acquisition, what gathered this moment is geometric sense (or comprise physical quantity, like gray scale) data.
Data acquisition in industrial environment generally is meant from analog-and digital-unit under tests such as sensor and other Devices to test and adopts non electrical quantity or electric quantity signal automatically, delivers in the host computer and analyzes, handles.Data acquisition system (DAS) be combine based on the measurement software and hardware product of computing machine or other special test platforms realize flexibly, user-defined measuring system.Through regular meeting a lot of various types of sensors are installed in industry spot; As pressure, temperature, flow, sound, electrical quantity or the like; Receive voltage or the current signal of limiting sensor signal such as the pressure transducer output of site environment can not teletransmission or because sensor connects up too much complicacy; We will select for use distributed or long-range data collecting card (module) at the scene the signal degree of precision convert digital quantity to, pass to data in computing machine or other controllers through various distant communications technology (as 485,232, Ethernet, various wireless network) then and handle.Thisly also can be regarded as a kind of of data collecting card, just it is stronger to the adaptive faculty of environment, can tackle various abominable industrial environments.Data collecting card; Promptly realize the computing machine expansion card of data acquisition (DAQ) function, can pass through buses such as USB, PXI, PCI, PCI Express, live wire (1394), PCMCIA, ISA, Compact Flash, 485,232, Ethernet, various wireless networks and insert computing machine.If in reasonable scene or laboratory, like the laboratory of school, just can use this capture card of USB/PCI, what use in the embodiments of the invention is exactly this data collecting card.Last although be capture card, but often need its output control signal in the practical application.Capture card is widely used in fields such as safety monitoring, education courseware recording, large screen splicing, multimedia recorded broadcast video recording.
Multi-channel data acquisition mainly is to be applied on the storage field tests; The characteristics of storage test are that collection multiparameter microsensor and signal adjustment, information acquisition, information stores and transmission interface circuit are one, and hyperchannel, high capacity parameters such as the working environment of testee, motion control are carried out (in real time, dynamically) data acquisition, storage, recovery afterwards, data reproduction, data analysis.Memory test system usually needs hyperchannel to gather simultaneously.Generally select for use the corresponding simulating switch to carry out the switching of each passage according to the characteristics of measured signal, analog switch have switching speed fast, leak little or the like characteristics.They get into simulating signal/DSC again through behind the analog switch.PLD is the control core of total system, and he controls storage address generator in storer of data after the opening/stop, change of switching, simulating signal/DSC of acquisition channel, produce interrupt request reads the data that leave in the storer etc. with notification processor.Thereby accomplish the storage test of multi channel signals with the simplest hardware circuit.So just, solve an insurmountable significant testing difficult problem in the past, demonstrated outstanding superiority.
Summary of the invention
The present invention is used for the analog signal conversion of automobile or assembly practical traning platform is become the discernible digital signal of computing machine, with various testing softwares of installation and Control Software cooperating on the computing machine of networking.And then realize all can carrying out actual measurement and Analysis on Fault Diagnosis to all electric signal that is attached thereto the tested automotive fittings that connects by any amount of end points of the server and client side on the network, content comprises voltage tester, resistance test, frequency test, pulsewidth test, wave form analysis etc.One group of signals collecting server can dock with any vehicle complete vehicle or assembly practical traning platform, can connect any amount of computing machine as the screen test terminal.
The present invention is made up of power supply, signal regulating device, data collector, control device.The input end of signal regulating device connects the output terminal of tested automotive fittings; The output terminal of signal regulating device connects the input end of data collector; The output terminal of data collector connects the input end of control device; The output terminal of control device is connected with computer cluster, and control device is provided with the transfer service module; At least one station server.Because the various voltages of tested automotive fittings output are uneven, and the harvester too high voltage signal (simulating signal) of can not sampling, so need this voltage (simulating signal) be decayed, be sent to data collector again by conditioning module.Be divided into two kinds in high voltage signal source and low voltage signal source when the electric signal of tested automotive fittings among the present invention: the voltage signal (simulating signal) more than or equal to 12v is a high voltage signal; And be low voltage signal less than the voltage signal of 12V.High voltage signal (simulating signal) is connected to signal regulating device, after decaying according to prearranged multiple through conditioning device, is sent to data collector again.Low voltage signal (simulating signal) then is directly connected to data collector.Then; Voltage (simulating signal) and low voltage signal (simulating signal) after decaying through signal regulating device; All pass to data collector and sample, and carry out simulating signal/digital signal conversion by DTU, can be thereby obtain by the digital signal of computer Recognition.Deposit computer system data storehouse or data buffer in through communication interface.At last, again in the virtual amplification of former ratio, so just obtained voltage by the software of pre-installing on the control device with the identical numerical value of voltage on tested automotive fittings.Deposit this magnitude of voltage in transfer server then, the magnitude of voltage that is gone to call transfer server by the calling program of each client carries out read operation.
The voltage range of the electric signal of process signal regulating device according to the invention is confirmed by the numerical value that those skilled in the art see fit; Signal regulating device be in signal conditioning circuit or the signal conditioner one or more; At least one signal regulating device.
Control device according to the invention is made up of computer module and control module; Computer cluster is LAN and or wide area network.
In the actuator of the ECU that tested automotive fittings according to the invention is each parts of automobile, the sensor of each parts of automobile, each parts of automobile one or more.
Signal pickup assembly according to the invention is provided with at least one multichannel collecting equipment, and we use PCI multichannel collecting card usually.During application, tested automotive fittings places monitored equipment, through sensor the voltage or the current signal of equipment is sampled, is kept, and send into simulating signal/DSC and become digital signal, then this signal is delivered in the storer.When the data of depositing in the storer have arrived some, read from storer by processor, give host computer through communication interface then.Consider that the equipment that will monitor may be a lot, so the present invention has adopted the multichannel collecting card.
The present invention includes following steps: preserve the digital signal of module reading of data conversion equipment output and be saved in the data field by the sampling of server; Set up network by the interactive communicate module of server and connect, and realize internetwork communication; Read the data of the data field in the transit server service module by the calling module of client, constantly refresh then and read this data.
Sampling according to the invention is preserved module and may further comprise the steps: read the digital signal through DTU output by sampling routine; By amplification procedure digital signal is amplified calculating according to former attenuation ratio; By save routine amplification procedure is calculated good result and be written in the data in server district; Cover old data by refreshing write-in program at the new data that regular recursive call sampling routine reads by DTU output.
Interactive communicate module according to the invention may further comprise the steps: connected through ICP/IP protocol by linker; Judge whether the request of calling module by determining program, ask then the data in reading of data district if having; Give calling module by router with returning data.
Calling module of the present invention may further comprise the steps: by the requisition procedure of the client data to interactive communicate module requests data reading district; Receive the data of the router passback of interactive communicate module by the reception program of client; Display routine by client is presented at ephemeral data on the screen; Refresh fetch program recursive call sampling routine in regularly by client.
Data area stores according to the invention is being in database or the data buffer.
Regular time span according to the invention is to think that by those skilled in the art suitable numerical value is definite.
Advantage of the present invention:
(1) realized that multi-client visits tested automotive fittings simultaneously and measure in real time, form multiple spot to single-point operating mode, then can realize simultaneously different electric signal sources being measured in real time by many people;
(2) in limited class hour, have only each student can participate in putting into practice the operation of measurement.Form of teaching is advanced, and efficient is high;
(3) can improve each student's the ability of practice of starting fast, tamp theoretical foundation, let each student repeatedly carry out the standard on duty that experiment with measuring reaches skilled operation through measuring repeatedly.
The present invention can be installed one or more compositions in casing, power supply, pilot lamp, control circuit and the Control Software additional.The present invention can be provided with casing separately, also can be arranged on the stand of tested automobile teaching aid.
Description of drawings
Fig. 1 is a connection synoptic diagram of the present invention.
Fig. 2 is a workflow diagram of the present invention.
Embodiment
When requiring to measure body electric system high beam voltage with client 1 below, the situation that client 2 requires to measure the TPS reference voltage is carried out the workflow explanation.
The first step:
The normal voltage of the sensor of body electric system high beam is 12V (simulating signal); Belong to high voltage; So the electrical signal conduction of body electric system high beam sensor is carried out 10 times decay by conditioning module with voltage to conditioning module, the voltage after the decay is 1.2V (simulating signal); Simultaneously,
The voltage of TPS reference voltage terminal when nominal situation should be 5V (simulating signal).Belong to low-voltage, so signal without signal regulating device, is directly inputted to data collector.
Second step: by data collector pair and the electric signal that is input to each pin, scan one by one, wherein,
The sensor voltage of body electric system high beam is transmitted to after harvester samples through the 1.2V (simulating signal) after the decay, through the A/D modular converter, converts digital signal " 1.2V " into.Read digital signal " 1.2V " by sampling routine through DTU output; Simultaneously,
The simulating signal of TPS directly gets into capture card sample after, convert digital signal into through simulating signal/digital signal modular converter: " 5V ".
The 3rd step: digital signal is imported computing machine through communication interface, wherein,
The digital signal of the sensor voltage of body electric system high beam is amplified according to former attenuation ratio by amplification procedure and is calculated then that 1.2V multiply by 10 times of digital signals that obtain 12V.By save routine amplification procedure is calculated good result " 12V " (digital signal) and be stored in the data in server district; Simultaneously,
The digital signal of TPS is preserved the digital signal of module reading of data conversion equipment output and will be saved in the data field by the sampling of server.Read digital signal " 5V " (digital signal) by sampling routine through DTU output.Owing to do not pass through the decay of conditioning module, need not carry out software naturally yet and amplify, by save routine former result " 5V " (digital signal) is stored in the data in server district.
The 4th step: read new digital signal by refreshing the fetch program at regular recursive call sampling routine by DTU output, and the data in the district that constantly Updates Information.Reciprocation cycle thus then can realize reading the effect of each electric signal source live signal on the tested automotive fittings.
The 5th step: set up network by linker through ICP/IP protocol and connect, form network communication.
The 6th step: the determining program of being preserved module by the server end sampling judges whether the request of client call module, asks then the data in reading of data district if having; At this moment, determine two requests of total " client 1 requires to measure body electric system high beam voltage " and " client 2 requires to measure the TPS reference voltage ".
The 7th step: the data in the requisition procedure requests data reading district of client call module.
The 8th step: the reception program of giving calling module with data " 12V " (digital signal) passback of the sensor of body electric system high beam by the router of server end interactive communicate module; By display routine " 12V " (digital signal) is presented on the screen again; By refreshing the fetch program, constantly read the magnitude of voltage that upgrades in the server data district at regular recursive call sampling routine.Reciprocation cycle thus is up to bolt down procedure.At this moment, realized that " client 1 requirement measurement body electric system high beam voltage " reads in real time and shown that the voltage signal of tested automotive fittings body electric system high beam is the effect of " 12V " (digital signal).Simultaneously,
The data " 5V " (digital signal) of TPS reference voltage are returned the reception program of the calling module of giving client by the router of server end interactive communicate module; By display routine ephemeral data is presented on the screen of client.By refreshing fetch program recursive call sampling routine in regularly, constantly read the magnitude of voltage that upgrades in the server data district.Reciprocation cycle thus is up to bolt down procedure.Realize that so then " client 2 requirement measurement TPS reference voltages " read in real time and show that tested automotive fittings solar term position transducer reference voltage is the effect of " 5V " (digital signal).
Thus, accomplish the whole process that two clients require to read different electric signal sources respectively, realized the whole requirement of technical scheme.
Claims (10)
1. an automobile instructional signal is gathered service method and device, it is characterized in that may further comprise the steps: preserved the digital signal of module reading of data conversion equipment output and be saved in the data field by the sampling of server, constantly refresh then and write new data; Set up network by the interactive communicate module of server and connect, and realize internetwork communication; Calling module by client reads the data field in the transit server service module, constantly refreshes then and reads this data.
2. automobile instructional signal as claimed in claim 1 is gathered service method, and sampling is preserved module and may further comprise the steps: read the digital signal through DTU output by sampling routine; By amplification procedure digital signal is amplified calculating according to former attenuation ratio; By save routine amplification procedure is calculated good result and write the data in server district; Cover old data by refreshing write-in program at the new data that regular recursive call sampling routine reads by DTU output.
3. automobile instructional signal as claimed in claim 1 is gathered service method, and the interactive communicate module may further comprise the steps: set up network by linker through ICP/IP protocol and connect; Judge whether the request of calling module by determining program, ask then the data in reading of data district if having; Give calling module by router with returning data.
4. automobile instructional signal as claimed in claim 1 is gathered service method, and calling module may further comprise the steps: by the data in requisition procedure requests data reading district; Receive the data of router passback by the reception program; By display routine ephemeral data is presented on the screen; By refreshing fetch program recursive call sampling routine in regularly.
5. automobile instructional signal as claimed in claim 1 is gathered service method, and it is characterized in that: data area stores is being in database or the data buffer; Regular time span is to think that by those skilled in the art suitable numerical value is definite.
6. an automobile instructional signal acquisition server comprises power supply, data collector and control device, it is characterized in that: also comprised signal regulating device; Wherein, The input end of signal regulating device connects the output terminal of tested automotive fittings; The output terminal of signal regulating device connects the input end of data collector; The output terminal of data collector connects the input end of control device, and the output terminal of control device is connected with computer cluster, and control device is provided with the transfer service module; At least one station server.
7. automobile instructional signal acquisition server as claimed in claim 6 is characterized in that: the voltage range of the electric signal of process signal regulating device is confirmed by the numerical value that those skilled in the art see fit; Signal regulating device be in signal conditioning circuit or the signal conditioner one or more; At least one signal regulating device.
8. automobile instructional signal acquisition server as claimed in claim 6, it is characterized in that: control device is made up of computer module and control module; Computer cluster is LAN and or wide area network.
9. automobile instructional signal acquisition server as claimed in claim 6 is characterized in that: tested automotive fittings is one or more in the actuator of sensor, each parts of automobile of ECU, each parts of automobile of each parts of automobile.
10. automobile instructional signal acquisition server as claimed in claim 6 is characterized in that: signal pickup assembly is provided with at least one multichannel collecting equipment.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869471A (en) * | 2016-05-13 | 2016-08-17 | 深圳国泰安教育技术股份有限公司 | Automobile detection terminal and system |
| CN106816068A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of capacitive reactance tester of non-gate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110155A (en) * | 2007-08-27 | 2008-01-23 | 北京交通大学 | Built-in intelligent fault diagnosing device based on data inosculating pattern recognition and method thereof |
| CN201177905Y (en) * | 2007-12-28 | 2009-01-07 | 南京理工大学 | Multimedia teaching monitoring apparatus for electric-controlled automobile engine |
| CN101408588A (en) * | 2008-11-26 | 2009-04-15 | 北京理工大学 | Automatic test system of electric automobile motor drive system performance |
| CN101509948A (en) * | 2008-10-08 | 2009-08-19 | 上海科世达-华阳汽车电器有限公司 | Automobile electronic test system and test method thereof |
| CN102097022A (en) * | 2009-12-14 | 2011-06-15 | 天津市优耐特汽车电控技术服务有限公司 | System for testing electrical signal of automobile |
| CN202331121U (en) * | 2011-08-05 | 2012-07-11 | 天津市优耐特汽车电控技术服务有限公司 | Automotive teaching signal acquisition server |
-
2011
- 2011-08-05 CN CN201110222683A patent/CN102332222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110155A (en) * | 2007-08-27 | 2008-01-23 | 北京交通大学 | Built-in intelligent fault diagnosing device based on data inosculating pattern recognition and method thereof |
| CN201177905Y (en) * | 2007-12-28 | 2009-01-07 | 南京理工大学 | Multimedia teaching monitoring apparatus for electric-controlled automobile engine |
| CN101509948A (en) * | 2008-10-08 | 2009-08-19 | 上海科世达-华阳汽车电器有限公司 | Automobile electronic test system and test method thereof |
| CN101408588A (en) * | 2008-11-26 | 2009-04-15 | 北京理工大学 | Automatic test system of electric automobile motor drive system performance |
| CN102097022A (en) * | 2009-12-14 | 2011-06-15 | 天津市优耐特汽车电控技术服务有限公司 | System for testing electrical signal of automobile |
| CN202331121U (en) * | 2011-08-05 | 2012-07-11 | 天津市优耐特汽车电控技术服务有限公司 | Automotive teaching signal acquisition server |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816068A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of capacitive reactance tester of non-gate |
| CN105869471A (en) * | 2016-05-13 | 2016-08-17 | 深圳国泰安教育技术股份有限公司 | Automobile detection terminal and system |
| CN105869471B (en) * | 2016-05-13 | 2019-03-22 | 深圳国泰安教育技术有限公司 | A kind of vehicle detection terminal and vehicle detecting system |
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Application publication date: 20120125 |