The high temperature resistant electronic tag of the anti-metal of a kind of waterproof
Technical field
The utility model relates to a kind of electronic tag, specifically be meant a kind of can the resistant to elevated temperatures electronic tag of the anti-metal of waterproof.
Background technology
Along with the development of radio frequency discrimination RFID technology, the RFID recognition technology have accuracy of identification height, accommodative ability of environment strong, read distance, anti-interference strong, use advantage such as facility, become the main flow of the application of existing market.The RFID recognition technology can realize exempting from operating of contacts, does not have the machinery wearing and tearing, and the life-span is long, need not visible light source, and penetrability is good, and contamination resistance and permanance are strong, can discern a plurality of mobile objects simultaneously.The RFID recognition technology is widely used in various fields such as industrial automation, business automation, communications and transportation control and management, for example the traffic surveillance and control system of train, Auto Express-way Toll Collector System, Item Management, the streamline production automation, gate control system, financial transaction, warehousing management, livestock management, vehicle anti-theft etc.
General RFID recognition system is made up of electronic tag, read write line and exchanges data and supervisory computer, and electronic tag is made up of radio frequency chip and antenna.The design of antenna can change characteristics such as antenna radiation pattern, impedance operator, standing-wave ratio (SWR), antenna gain, polarised direction and working frequency range, can design different antennas according to the difference of application or place or environment and radio frequency chip.Simultaneously, antenna performance also be subjected to the attached or influence of using body form and physical characteristics of card, as: magnetic field can not penetrating metal etc. permeability magnetic material, magnetic line of force shape can change near the metal object, and the surface of metal object forms the magnetic field eddy current, by Lenz law as can be known, eddy current can produce the magnetic flux of opposing excitation, cause the big high attenuation of metal surface magnetic flux, the energy that reading and writing device antenna sends is absorbed by metal, causes electronic tag to use on metal object.In order to enlarge application, electronic tag also need be applied in water environment or the hot environment, therefore needs to solve waterproof and resistant to elevated temperatures problem.
The utility model content
The utility model be intended to overcome the deficiencies in the prior art provide a kind of volume little, can embed in the metal object, high temperature resistant, waterproof, safe and reliable, discern the high temperature resistant electronic tag of the anti-metal of waterproof accurately.
To achieve these goals; the utility model is designed the high temperature resistant electronic tag of the anti-metal of a kind of waterproof; comprise radio frequency chip and aerial coil; described aerial coil is wrapped on the Ferrite Material with high permeability; aerial coil respectively be provided with one deck water resistant, high temperature resistant material protection layer up and down; aerial coil and water resistant, high temperature resistant material protection layer form the inner space of sealing; the surface of radio frequency chip is dripped glue by water resistant, high temperature resistant and is packaged on the water resistant, high temperature resistant material protection layer; radio frequency chip is arranged on the circuit board; in one deck water resistant, high temperature resistant material protection layer or inner space that this circuit board is placed in one, the radio frequency chip lead-in wire is connected respectively with the aerial coil free end.
Described Ferrite Material is a FERRITE CORE.
The cross section of described FERRITE CORE is square frame shape or circle framework.
Packing material is arranged on the inner space.
The utility model is provided with the Ferrite Material of high permeability in aerial coil, increased magnetic field intensity, the reliability of the radio-frequency (RF) identification of enhancing prolongs decipherment distance, the new electronic tag of this practicality can be embedded in the metal object and use, in firearms management domain or vehicle or machinery.The new electronic tag of this practicality also has high temperature resistant and performance waterproof.
Description of drawings:
Fig. 1 is the high temperature resistant Electronic Tag Structure front view of the anti-metal of the utility model waterproof;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the AA direction cut-open view of Fig. 1.
Embodiment
For the ease of those skilled in the art's understanding, structural principle of the present utility model is described in further detail below in conjunction with specific embodiment and accompanying drawing:
As Fig. 1; Fig. 2; shown in Figure 3; the high temperature resistant electronic tag of the anti-metal of a kind of waterproof; comprise radio frequency chip 1 and aerial coil 2; described aerial coil 2 is wrapped on the FERRITE CORE 3 with high permeability; aerial coil 2 respectively be provided with one deck water resistant, high temperature resistant material protection layer 4 up and down; aerial coil 2 and water resistant, high temperature resistant material protection layer 4 form the inner space 6 of sealing; the surface of radio frequency chip 1 is dripped glue by water resistant, high temperature resistant and is packaged on the upper strata water resistant, high temperature resistant material protection layer 4; radio frequency chip 1 is arranged on the circuit board 5; this circuit board 5 places inner space 6, and radio frequency chip 1 lead-in wire is connected respectively with the aerial coil free end.The cross section of described FERRITE CORE is a square frame shape.On inner space 6, packing material is arranged.
The utility model electronic tag has that volume is little, the characteristics of waterproof, high temperature resistant and anti-metal, can be embedded in the firearms, realize the automatic identification and the information system management of army or police's firearms, a granting to army or police's firearms, the automatic identification when going out warehouse-in, working service, the technological means of intelligent management are provided.The utility model electronic tag can be effectively, accurately, intelligently the firearms information of carrying out of turnover storehouse is discerned automatically, gathers, writes down, is uploaded, and the maintenance information of firearms is inquired about fast, is added up.In addition, the utility model also is fit to the management to vehicle and ordnance property turnover.