Short range data transmission device and method based on electromagnetic induction
A technology of a data transmission device and a data transmission method, which is applied in near-field transmission systems, transmission systems, electrical components, etc., can solve problems such as inability to communicate with distance control, and achieve low power consumption
Inactive Publication Date: 2011-05-04
WUHAN TIANYU INFORMATION IND
View PDF4 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] But in some occasions, especially when it comes to data security, it is necessary to limit the effective range of wireless communication to a relatively short distance (<10cm), and the existing wireless communication means cannot control the communication distance very well
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The specific implementation manners of the present invention are described in detail below.
[0024] The logic block diagram of the data sender is as follows figure 2 shown. The data sender has built-in microprocessor MCU 101 , digital / analog conversion circuit DAC 102 , signal conditioning circuit 103 and transmitting coil 104 . The microprocessor MCU 101 is electrically connected to the digital / analog conversion circuit DAC 102 , the digital / analog conversion circuit DAC 102 is electrically connected to the signal conditioning circuit 103 , and the signal conditioning circuit 103 is electrically connected to the transmitting coil 104 . Microprocessor MCU 101 generates digital output of modulation signal, which is converted into analog modulation signal by digital / analog conversion circuit DAC 102 , and the modulated signal is conditioned by signal conditioning circuit 103 and sent out from transmitting coil 104 .
[0025] The first embodiment of the data receiver i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a short range data transmission device based on electromagnetic induction, which comprises a data transmitting party and a data receiving party, wherein the data transmitting party modulates carriers according to data to be transmitted; modulation signals obtained through modulation are converted into analog signals; the analog signals are modulated and transmitted by a transmitting coil of the data transmitting party; when the data receiving party approaches the transmitting coil, an induction coil in the transmitting coil induces the analog signals transmitted by the data receiving party so as to receive the transmitted signals; and the transmitted signals are modulated and demodulated to form the transmitted data. The invention also discloses a short range data transmission method based on electromagnetic induction. The device can perform wireless data transmission in a short range (10cm) under the condition of lower power consumption.
Description
technical field [0001] The invention relates to a short-distance data transmission device and method, which can be applied to occasions such as short-distance data transmission and distance measurement. Background technique [0002] Wired or wireless communication can be used between the data sender and the data receiver of the communication. Wired communication is often used at a relatively short distance, but both parties need to provide corresponding physical contacts. In some portable devices (such as mobile communication terminals), due to space and standard limitations, it is not conducive to using wired communication; wireless communication does not have cables and wires. The limitation of the connection can easily expand the communication interface, and can transmit the electrical signal over a long distance. [0003] But in some occasions, especially when it comes to data security, it is necessary to limit the effective range of wireless communication to a relative...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00H04L27/02H04L27/10
CPCY02D30/70
Inventor 王同洋吴俊军付积存熊建军黄书伟
Owner WUHAN TIANYU INFORMATION IND