CN102377460B - A kind of method and system using near-field communication technology to carry out signal processing - Google Patents

Abstract

The invention discloses a method and system for signal processing using near-field communication technology, including a near-field communication (NFC) card reader, and a connected NFC card and a signal measurement module for being installed in a circuit under test; The NFC card is used to obtain power feed through the near-field communication card reader, trigger the signal measurement module to perform signal measurement on the circuit under test and return signal parameters; the signal measurement module receives the NFC card Carry out signal measurement to the circuit under test and feed back the measured signal parameters to the NFC card after the trigger signal; the NFC card reader is used to obtain the signal parameters from the NFC card. In this solution, the external card reader can read the signal value of the circuit under test at any time and conveniently, avoiding the trouble of wiring and the need for wired power supply, and solving the problem of complicated procedures in traditional signal tracking technology.

Description

A method and system for signal processing using near field communication technology

technical field

The present invention relates to the technical field of Near Field Communication (NFC for short), and in particular to a method and system for signal processing using the Near Field Communication technology.

Background technique

Near field communication (NFC), also known as short-range wireless communication, is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission (within ten centimeters) to exchange data between electronic devices. This technology evolved from contactless radio frequency identification (Radio Frequency Identification, referred to as RFID), and is backward compatible with RFID. It was first promoted by Philips, Nokia and Sony. Due to the natural security of near-field communication, NFC technology has been adopted It is believed that it has great application prospects in fields such as mobile payment. In order to promote the development and popularization of NFC, Philips, Sony and Nokia created a non-profit industry association, the NFC Forum, to promote the implementation and standardization of NFC technology and ensure collaboration between devices and services.

It can integrate contactless card reader, contactless card and peer-to-peer (Peer-to-Peer) functions into a single chip, opening up new opportunities for consumers' lifestyles. It is an open interface platform that enables quick, proactive setup of wireless networks and a virtual connector for existing cellular, Bluetooth and wireless 802.11 devices.

The NFC antenna is a near-field coupling antenna. Since the wavelength of 13.56Mhz is very long and the reading and writing distance is very short, the suitable coupling method is magnetic field coupling, and the coil is the suitable coupling method. In mobile phones, the industry usually uses a magnetic film (such as produced by TDK and other companies) to attach FPC to make the antenna.

NFC has the characteristics of low cost, easy-to-use and more intuitive, which makes it more potential in some fields-NFC can realize various devices through a combination of a chip, an antenna and some software. communication within centimeters, and the cost is only 2 to 3 euros. According to ABIReasearch's latest research on NFC, the NFC market may start with mobile handheld devices. ABI estimates that after 2005, smart phones and enhanced handheld devices using NFC chips will appear in the market. By 2009, such handheld devices will account for more than half of the market. If NFC technology can be popularized, it will greatly change the way people use many electronic devices, and even change the way people use credit cards, keys and cash.

As an emerging technology, NFC roughly summarizes the disadvantages of Bluetooth technology's poor ability to work together. However, its goal is not to completely replace other wireless technologies such as Bluetooth and Wi-Fi, but to complement each other in different occasions and fields. Because the data transmission rate of NFC is low, only 212Kbps, it is not suitable for applications requiring higher bandwidth such as audio and video streaming.

The traditional signal tracking system requires external wiring, the measuring instrument is connected to the circuit under test, and the circuit may need to be reconnected for the next measurement, which has the defect of complicated measurement process.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method and system for signal processing using near-field communication technology to solve the problem of complex procedures in traditional signal tracking technology.

In order to solve the above technical problems, the present invention provides a device for signal processing using near-field communication technology, which includes a near-field communication (NFC) card reader, and a connected NFC card for installation in the circuit under test and Signal measurement module;

The NFC card is used to obtain power feed through the near-field communication card reader, trigger the signal measurement module to perform signal measurement on the circuit under test and return signal parameters;

The signal measurement module, after receiving the trigger signal of the NFC card, performs signal measurement on the circuit under test and feeds back the measured signal parameters to the NFC card;

The NFC card reader is used to obtain the signal parameters from the NFC card.

Further, the above-mentioned device may also have the following characteristics:

The device also includes a signal tracking module connected to the NFC card reader and the circuit under test;

The NFC card reader is also used to synchronize the obtained signal parameters to the signal tracking module;

The signal tracking module is configured to monitor the signal parameters, and adjust the circuit under test after judging that the signal parameters exceed a preset threshold.

Further, the above-mentioned device may also have the following characteristics:

The device also includes a display module connected to the NFC card reader;

The NFC card reader is also used to synchronize the obtained signal parameters to the display module;

The display module is used to display the signal parameters.

Further, the above-mentioned device may also have the following characteristics:

The signal parameters are voltage parameters.

Further, the above-mentioned device may also have the following characteristics:

The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires.

In order to solve the above technical problems, the present invention provides a method for signal processing using near-field communication technology, wherein the connected signal measurement module and NFC card are installed in the circuit under test; the NFC card reads the card through the near-field communication After receiving the trigger signal from the NFC card, the signal measurement module performs signal measurement on the circuit under test and sends the signal to the circuit under test. The NFC card feeds back the measured signal parameters; the NFC card reader obtains the signal parameters from the NFC card.

Further, the above method may also have the following characteristics:

The NFC card reader synchronizes the obtained signal parameters to the signal tracking module;

The signal tracking module monitors the signal parameters, and adjusts the circuit under test after judging that the signal parameters exceed a preset threshold.

Further, the above method may also have the following characteristics:

The NFC card reader synchronizes the obtained signal parameters to the display module;

The display module displays the signal parameters.

Further, the above method may also have the following characteristics:

The signal parameters are voltage parameters.

Further, the above method may also have the following characteristics:

The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires.

In this solution, the signal measurement module and NFC card are connected to the circuit under test. The power supply of the voltage measurement module is provided by the NFC communication module. When the signal on the circuit under test needs to be read, the NFC card reader feeds power to the antenna of the NFC card. , the NFC card supplies power to the signal measurement module. After the signal measurement module measures the signal value, the NFC card returns it to the external card reader, so that the external card reader can read the signal value of the circuit under test at any time and conveniently, avoiding The trouble of wiring and the need for wired power supply solve the problem of complicated procedures in traditional signal tracking technology.

Description of drawings

Fig. 1 is a device structure diagram for signal processing using near-field communication technology in an embodiment;

Fig. 2 is the synoptic diagram that a plurality of tested circuits are monitored simultaneously in the embodiment;

Fig. 3 is a schematic diagram of tracking processing of the circuit under test in the embodiment.

detailed description

As shown in Figure 1, the device using near-field communication technology for signal processing includes an NFC card reader, and a connected NFC card and signal measurement module for installation in the circuit under test;

The NFC card is used to obtain power feed through the NFC card reader, trigger the signal measurement module to perform signal measurement on the circuit under test and return signal parameters;

The signal measurement module, after receiving the trigger signal of the NFC card, performs signal measurement on the circuit under test and feeds back the measured signal parameters to the NFC card;

The NFC card reader is used to obtain the signal parameters from the NFC card.

The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires. The signal parameters may be various parameters, such as voltage parameters.

The above device uses NFC communication technology, the signal range is small, it will not affect each other, and it can be easily extended to connect multiple circuits under test, as shown in Figure 2. Without modifying the original circuit under test, multiple NFC card readers can be connected in parallel to realize a system for monitoring multiple circuit signals at the same time.

The device may also include a display module connected to the NFC card reader; the NFC card reader is also used to synchronize the obtained signal parameters to the display module; the display module is used to display The signal parameters.

As shown in Figure 3, the device also includes a signal tracking module connected to the NFC card reader and the circuit under test; the NFC card reader is also used to synchronize the obtained signal parameters to The signal tracking module; the signal tracking module is used to monitor the signal parameters, and adjust the circuit under test after judging that the signal parameters exceed a preset threshold.

For example, when the signal parameter is a voltage value, after the signal tracking module detects that the voltage value of the circuit under test exceeds the threshold value, it automatically adjusts the circuit under test to ensure that the voltage is within a safe range.

The method for signal processing using the above-mentioned device includes: installing the connected signal measurement module and the NFC card on the circuit under test; Measure and return signal parameters; the signal measurement module performs signal measurement on the circuit under test after receiving the trigger signal of the NFC card and feeds back the measured signal parameters to the NFC card; the NFC card reader from The NFC card acquires the signal parameters.

The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires. The signal parameters may be various parameters, such as voltage parameters.

In the above method, the NFC card reader is approached to the NFC card, and the NFC card can obtain power feeding through the NFC card reader, and the NFC card reader is removed from the NFC card reader after obtaining signal parameters from the NFC card , to complete the signal acquisition process. In this method, when you need to measure the same circuit again, you don’t need to connect again, just put the NFC card reader close to the NFC card. The circuit between the signal measurement module and the NFC card is only close to the NFC card reader. It is effective only when the signal measurement module is used, and the influence of the signal measurement module on the original circuit is also reduced. as shown in picture 2. Without modifying the original circuit under test, multiple NFC card readers can be connected in parallel to realize a system for monitoring multiple circuit signals at the same time.

This method can also display the collected signal in time for the convenience of the user, and the NFC card reader will synchronize the obtained signal parameters to the display module; signal image) for the user to view.

The method also provides support for automatic real-time regulation of the circuit under test. When automatic real-time regulation of the circuit under test is performed, the NFC card reader synchronizes the obtained signal parameters to the signal tracking module; the signal tracking module monitors the signal parameters, after judging that the signal parameters exceed a preset threshold, adjust the circuit under test. For example, when the signal parameter is a voltage value, after the signal tracking module detects that the voltage value of the circuit under test exceeds the threshold value, it automatically adjusts the circuit under test to ensure that the voltage is within a safe range. After the signal tracking module detects that the voltage value of the circuit under test exceeds the threshold value, it can also alarm to remind the user.

In this solution, only one configuration is required for the same circuit under test, and multiple measurements can be conveniently performed, which saves the trouble of connecting again, and basically has no effect on the original circuit. When measuring a circuit, there will be no interference with each other.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk, and the like. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules. The present invention is not limited to any specific combination of hardware and software.

Claims (10)

1. A device for signal processing using near-field communication technology, including a near-field communication NFC card reader, an NFC card and a signal measurement module, wherein the NFC card is connected to the signal measurement module and installed in the test circuit; The NFC card is used to obtain power feed through the near-field communication card reader, trigger the signal measurement module to perform signal measurement on the circuit under test and return signal parameters; The signal measurement module, after receiving the trigger signal of the NFC card, performs signal measurement on the circuit under test and feeds back the measured signal parameters to the NFC card; The near field communication NFC card reader is used to obtain the signal parameters from the NFC card. 2. The apparatus of claim 1, wherein The device also includes a signal tracking module connected to the near field communication NFC card reader and the circuit under test; The near-field communication NFC card reader is also used to synchronize the obtained signal parameters to the signal tracking module; The signal tracking module is configured to monitor the signal parameters, and adjust the circuit under test after judging that the signal parameters exceed a preset threshold. 3. The apparatus of claim 1, wherein The device also includes a display module connected to the near field communication NFC card reader; The near-field communication NFC card reader is also used to synchronize the obtained signal parameters to the display module; The display module is used to display the signal parameters. 4. Apparatus as claimed in claim 1, 2 or 3, characterized in that, The signal parameters are voltage parameters. 5. Apparatus as claimed in claim 1, 2 or 3, characterized in that, The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires. 6. A method of signal processing using near field communication technology, wherein, Install the connected signal measurement module and NFC card on the circuit under test; The NFC card obtains power feed through the near-field communication NFC card reader, triggers the signal measurement module to perform signal measurement on the circuit under test and returns signal parameters; After the signal measurement module receives the trigger signal of the NFC card, it performs signal measurement on the circuit under test and feeds back the measured signal parameters to the NFC card; The near field communication NFC card reader acquires the signal parameters from the NFC card. 7. The method of claim 6, wherein, The signal parameters obtained by the near-field communication NFC card reader are synchronized to the signal tracking module; The signal tracking module monitors the signal parameters, and adjusts the circuit under test after judging that the signal parameters exceed a preset threshold. 8. The method of claim 6, wherein, The near-field communication NFC card reader synchronizes the obtained signal parameters to the display module; The display module displays the signal parameters. 9. The method of claim 6, 7 or 8, wherein, The signal parameters are voltage parameters. 10. The method of claim 6, 7 or 8, wherein, The signal measurement module and the circuit under test and between the signal measurement module and the NFC card are connected by wires.