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Based on monolithic integrated circuit CPLD multi-channel precise timing control system design
Wednesday, May 27th, 2009 at 04:12 | No commentsCategories: SCMShort Content: 1 introduction In the modern control system the controlled member possibly is complex, scattered, moreover often is parallel, the independent working, but in the whole they are the incident cross-correlation organic combinations. Therefore, control signal's sequential logic requests to be more precise. The CPLD monolithic integrated circuit has provided the technical support for the control system, is composed the multi-computer system by CPLD and the monolithic integrated circuit to have the logical control to be convenient, the succession is precise, ... -
With realizes - en.51rd.net based on the LIN main line’s headlight online diagnosis system design
Wednesday, May 27th, 2009 at 03:59 | No commentsCategories: SCMShort Content: 1 introduction The automobile bussing technique is one of field bus's applications, the initial field bus only uses in the industrial control. The so-called field bus is the application in the production lowest level one kind always the linear analysis situs network. The automobile body directed net needs to solve at present the question is establishes a unification, the low cost low end communication network standard, LIN exists as the CAN auxiliary main line, realizes the automobile body directed net ... -
Based on I2C main line remote control color television principle and breakdown demonstration installment development
Wednesday, May 27th, 2009 at 03:45 | No commentsCategories: SCMShort Content: 1 introduction When television technology teaching, the electric circuit is complex, each kind of part has the breakdown phenomenon regarding the television to demonstrate with difficulty on the screen, the teacher can only depend upon the principle analysis to make the judgment, is separated from the circuitry and the material object, causes the student difficultly to study, the teacher difficult to teach common phenomenon. But when student actual operation, the signal flow is not direct-viewing, has the suitable risk. In ... -
AT89C2051 bidirectional temperature supervisory system’s design
Wednesday, May 27th, 2009 at 03:32 | No commentsCategories: SCMShort Content: 1 introduction Certain application situation needs to monitor the temperature, the request temperature maintains based on this. For example the crops hotbed grows seedlings in 20℃~30℃, domesticated fowl hatching in 37℃~40℃, mold mushroom spawn cultivation in 23℃~28℃. But the ordinary unidirectional excess temperature warning satisfies with difficulty requests, therefore, proposed that one kind controls the warm system design plan using the temperature sensor and the monolithic integrated circuit application system's bidirectional excess temperature. This system design can demonstrate the ultra ... -
Based on living specimen fingerprint sensor MBF310 security remote control design
Wednesday, May 27th, 2009 at 03:19 | No commentsCategories: SCMShort Content: Introduction The security remote control mainly applies in entrance guard equipment and so on automobile, garage gate, burglar-proof door, indoor, safe cabinet, may control opens and closes the entrance guard equipment, under security pattern, when the entrance guard illegal is opened, the collision, the migration, vibration isochronism to send out the security alarm. Now in market fingerprint recognition security remote control, what uses is the first generation of optics fingerprint recognition technology, can only scan the finger skin's surface ... -
Based on embedded component AT89C51SNDlC electronic treatment meter design
Wednesday, May 27th, 2009 at 03:05 | No commentsCategories: SCMShort Content: 1 introduction At present uses two electricity pole piece symmetrical cover treatment human body spot the electronic treatment meter, has the function through the electrode piece on pulsating voltage and the treatment human body spot resistance, produces the human body in the treatment spot to be able the sensation pulsating current, the stimulation nerve muscle, causes its contraction and the diastole, has the movement effect, serves the treatment purpose. But in the present market this type treatment meter produces pulsating ... -
Power line carrier communication colony type security alarm system
Wednesday, May 27th, 2009 at 02:52 | No commentsCategories: SCMShort Content: Introduction The power line carrier communication is takes the channel by the existing low pressure electric power wire, through the carrier transmission simulation or digital signal's technology, has does not need the extra wiring, the cost to be low, characteristics and so on use maintenance convenience, had some companies to promote the power line Moclem chip, like ST7536, LMl893, SCll28, PL2000 and so on, in long-distance informationization, street light illumination monitoring, intellectualized plot automatically domains and so on copy ... -
Based on DS1302 time 11 locking and long-distance decipher
Wednesday, May 27th, 2009 at 02:39 | No commentsCategories: SCMShort Content: At present, factory or business to sell the product, after often uses delivers goods first pays money, or the part payment loans namely deliver goods sales way. The partial credit low customer, will refuse by all sorts of excuses to pay the loans (spare money), factory or business, if according to the usual channel demanded that the loans (spare money), often demanded the loans (spare money) will pay the price (spare money) must be bigger than the loans. Therefore may ... -
Based on C8051F intelligence measurement system - 51RD Chinese electronic net
Wednesday, May 27th, 2009 at 02:25 | No commentsCategories: SCMShort Content: 1 Introduction The intelligent survey obtained widespread application [1][2][3] in the various trades and occupations, surveys the data which obtains to be possible through the serial port or after the exterior USB bridge bridge joint after the USB mouth and superior machine exchange data [2] [3][4]. If the monolithic integrated circuit itself integrated the USB communication module, this will reduce the system cost greatly, enhances system's reliability. This system is precisely selects the C8051F34x chip based on this, it is ... -
Based on monolithic integrated circuit and vehicles detector’s vehicle type parsing technique research
Wednesday, May 27th, 2009 at 02:12 | No commentsCategories: SCMShort Content: 1 introduction In science and technology swift development's today, the monolithic integrated circuit also changes with each new day, rapidly expand. At present, he not only has the extremely widespread application in the industry, moreover seeped generally to national economy each department, is playing the vital role specially in the transport facilities. In present and present's transportation system, the vehicles detector "the informer" causes the traffic engineering experts by its traffic control to take seriously, the vehicles detector may provides ...
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