Ultrahigh frequency RFID mobile communication terminal with intelligent antenna
Technical Field
The invention relates to communication equipment, in particular to an ultrahigh frequency RFID mobile communication terminal with an intelligent antenna.
Background
In recent years, the concept of internet of things has begun to come to the ground to take root, which is another information industry revolution following computers, internet and mobile communications. Meanwhile, network technology has been developed from simple computer and computer network connection to the early stage of ubiquitous network, and information exchange between people and any other people at any time and any place by using any network is gradually realized, and ubiquitous and inexhaustible information services and applications are provided for individuals and society by using the network technology, and the development trend is particularly obvious in the field of internet of things.
The ultrahigh frequency RFID is used as a non-contact automatic identification technology, automatically identifies a target object and obtains related data through a radio frequency signal, does not need manual intervention in identification work, can work in various severe environments, can identify high-speed moving objects and can simultaneously identify a plurality of labels, and is quick and convenient to operate. At present, the ultrahigh frequency RFID technology is mainly applied to scenes such as channel management, data acquisition and identity confirmation, and object positioning of vehicles, and the like, and applications such as safety precaution, intelligent traffic application, material management and the like based on the ultrahigh frequency RFID technology are found everywhere in real life.
However, the current ultrahigh frequency RFID is only used for reading and writing label information, cannot upload information in real time, cannot combine mobile communication with a computer network, cannot realize resource sharing of various devices, and is limited in location and identification distance.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides the ultrahigh frequency RFID mobile communication terminal with the intelligent antenna, which can realize ad hoc network, combine mobile communication with computer network, realize equipment resource sharing, and combine the antennas of a plurality of terminals to form an antenna array, so that the positioning is more accurate and the identification distance is longer.
The technical scheme is as follows: the ultrahigh frequency RFID mobile communication terminal with the intelligent antenna comprises a main controller, a communication module, an SIM card, a power supply, a memory, an intelligent antenna module for forming an antenna array by a plurality of antennas and a Bluetooth ultrahigh frequency RFID module for self-organizing network, wherein the communication module, the SIM card, the power supply, the memory, the intelligent antenna module and the Bluetooth ultrahigh frequency RFID module are respectively connected with the main controller.
Furthermore, the Bluetooth ultrahigh frequency RFID module comprises an MCU, a low power consumption Bluetooth baseband circuit, a low power consumption Bluetooth radio frequency circuit, a low power consumption Bluetooth antenna, an ultrahigh frequency RFID baseband circuit, an ultrahigh frequency RFID radio frequency circuit and an ultrahigh frequency RFID antenna, wherein the low power consumption Bluetooth baseband circuit, the low power consumption Bluetooth radio frequency circuit and the low power consumption Bluetooth antenna are sequentially connected, the ultrahigh frequency RFID baseband circuit, the ultrahigh frequency RFID radio frequency circuit and the ultrahigh frequency RFID antenna are sequentially connected, and the low power consumption Bluetooth baseband circuit and the ultrahigh frequency RFID baseband circuit are further connected with the MCU.
Furthermore, the intelligent antenna module comprises a position sensing sensor and a DSP chip, the position sensing sensor is connected with the main controller, and the DSP chip is respectively connected with the Bluetooth ultrahigh frequency RFID module and the position sensing sensor.
Further, the position perception sensor comprises a GPS sensor and a MEMS inclination angle sensor.
Furthermore, the terminal further comprises an input module and an output module, wherein the input module and the output module are respectively connected with the main controller.
Further, the terminal further comprises an external interface, and the external interface is connected with the main controller.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the Bluetooth is adopted to carry out ad hoc network, low power consumption and short distance wireless interfaces are adopted, seamless connection among mobile phones, portable computers and other electronic devices can be realized, and further a personal area network is formed, so that resource sharing can be realized for various informationized mobile and portable devices in the range of the Bluetooth, the rapid interaction requirements of various data contents among people and people, people and objects, and objects are really realized, and the development from a single network to a fused network is realized. And the combination use of the ultrahigh frequency RFID antennas among different mobile phones is realized through the autonomous network function, so that a multi-mobile-phone antenna array is formed, the equivalent size of the antenna can be effectively increased, higher gain is provided, and more degrees of freedom can be provided for the formation of antenna beams. The array antenna can realize complex functions which cannot be realized by a single antenna, has higher flexibility and higher signal capacity, can obviously improve the performance of a system, and realizes the functions of higher sensitivity, longer identification distance, more accurate positioning and the like of an ultrahigh frequency RFID mobile phone.
Drawings
FIG. 1 is a system block diagram of one embodiment of the present invention;
fig. 2 is a system block diagram of the bluetooth uhf RFID module of fig. 1.
Detailed Description
As shown in fig. 1, the bluetooth ultrahigh frequency RFID mobile communication terminal of this embodiment is specifically a mobile phone, and includes a main controller, a communication module, an SIM card, a power supply, a memory, an intelligent antenna module for forming an antenna array from multiple antennas, a bluetooth ultrahigh frequency RFID module for ad hoc network, an external interface, an input module, and an output module, where the communication module, the SIM card, the power supply, the memory, the intelligent antenna module for forming an antenna array from multiple antennas, the bluetooth ultrahigh frequency RFID module for ad hoc network, the external interface, the input module, and the output module are respectively connected to the main controller. The main controller is a data processing center and a control center, the communication module is used for data communication, the power supply provides energy for each module, and the memory is used for storing data; the intelligent antenna module comprises a position sensing sensor and a DSP chip, the position sensing sensor is connected with the main controller, and the DSP chip is respectively connected with the Bluetooth ultrahigh frequency RFID module and the position sensing sensor. The position perception sensor comprises a GPS sensor, a MEMS inclination angle sensor and the like. The Bluetooth ultrahigh frequency RFID module is used for self-networking by adopting low-power Bluetooth and ultrahigh frequency RFID, and the working frequency of the ultrahigh frequency RFID is 840-925M Hz; the low power consumption Bluetooth working frequency band is 2.4 GHz. The external interface is used for externally connecting various devices, such as earphones, the input module is used for inputting data, and the output module is used for outputting data, such as USB.
As shown in fig. 2, the bluetooth ultrahigh frequency RFID module includes an MCU, a low power consumption bluetooth baseband circuit, a low power consumption bluetooth radio frequency circuit, a low power consumption bluetooth antenna, an ultrahigh frequency RFID baseband circuit, an ultrahigh frequency RFID radio frequency circuit, and an ultrahigh frequency RFID antenna, the low power consumption bluetooth baseband circuit, the low power consumption bluetooth radio frequency circuit, and the low power consumption bluetooth antenna are sequentially connected, the ultrahigh frequency RFID baseband circuit, the ultrahigh frequency RFID radio frequency circuit, and the ultrahigh frequency RFID antenna are sequentially connected, and the low power consumption bluetooth baseband circuit and the ultrahigh frequency RFID baseband circuit are further connected to the MCU. The MCU contains an information security function, and the security verification is carried out through the MCU executing an encryption algorithm or through a special module. Thus, the information exchange between the ad hoc network mobile phones is safe.
When a plurality of ultrahigh frequency RFID mobile phones are in a close space, the mobile phones can be independent through the low power consumption Bluetooth. The position sensing module comprises a GPS sensor, an MEMS tilt sensor and the like, so that the mutual position and tilt condition of the mobile phone antenna can be sensed. At this time, through the DSP chip, the antennas of a plurality of ultrahigh frequency RFID mobile phones can be combined into an intelligent antenna array. The DSP chip is a self-adaptive digital signal processor which takes a digital signal processor and a self-adaptive algorithm as a core and is used for generating self-adaptive optimal weight coefficients: and forming the adaptive beam forming network by using the dynamic adaptive weighting network. When the system is used, a mobile phone holder can adjust the mobile phone to a required position and an inclination angle, the effect of the intelligent antenna is achieved through the arrangement of the antenna array, the complex function which cannot be realized by a single antenna can be realized, the flexibility is higher, the signal capacity is higher, the performance of the system can be obviously improved, and the functions of higher sensitivity, farther identification distance, more accurate positioning and the like of the ultrahigh frequency RFID mobile phone are realized.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.