CN104867300A - Interception device and method for micropower wireless network - Google Patents
Interception device and method for micropower wireless network Download PDFInfo
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Abstract
本发明公开了一种用于微功率无线网络的侦听装置和方法。其中，该装置包括：接收器，用于接收微功率无线网络中的信号发送设备所发送的无线信号，并将无线信号转换为数字信号；处理器，连接接收器，用于从数字信号中解析出满足第一预设条件的信息；显示器，连接处理器，用于显示解析出的信息。本发明解决了在微功率无线网络的组网或实际运行过程中如何使该网络的管理或维护人员掌握该网络中的信号发送设备所传输的信息的技术问题。
The invention discloses a listening device and method for a micro-power wireless network. Wherein, the device includes: a receiver, used to receive the wireless signal sent by the signal sending device in the micropower wireless network, and convert the wireless signal into a digital signal; a processor, connected to the receiver, used to analyze the signal from the digital signal outputting the information satisfying the first preset condition; the display is connected to the processor and used for displaying the parsed information. The invention solves the technical problem of how to make the management or maintenance personnel of the network master the information transmitted by the signal sending equipment in the network during the networking or actual operation of the micro-power wireless network.
Description
Technical Field
The invention relates to the field of communication, in particular to a monitoring device and a monitoring method for a micropower wireless network.
Background
With the gradual popularization of the smart grid concept in China, the demand of the smart electric meter is also increased explosively, in many communication modes, wireless is always a hot spot, and the micropower wireless ad hoc network is a bidirectional wireless communication technology with low power consumption, low cost, high transmission rate and high reliability. Meanwhile, mutual interference cannot occur in micro-power wireless, and the success rate of one-time meter reading reaches 99.5%, so that the micro-power wireless data transmission method is considered to be an optimal solution for data transmission of the last kilometer in the future power industry. Micropower wireless ad hoc networking technology has found widespread use in the united states, europe, etc., while australia has established micropower wireless ad hoc networking as the only communications standard. A typical smart grid architecture may be as shown in fig. 1, wherein the concentrator 104 may communicate with the power-operated background server 102 through cables, optical fibers, or other wireless networks such as GPRS, and communicate with the plurality of smart meters 106 through a micro-power wireless network, so as to realize interaction between the server 102 and the smart meters 106, and further perform operations such as meter reading and electric charge issuing.
However, due to the huge number of terminal users in the power industry of the last kilometer, the field environment is very complex, the wireless frequency bands are various, typical frequency bands include 433MHz, 780MHz, 915MHz, 2.4GHz and the like, and communication protocols such as Zigbee, ieee802.15.4, a dedicated network protocol and the like. How to analyze, test and research and verify the transmission information in the networking or actual operation process to ensure the stability and high efficiency of the transmission information in the actual work becomes a problem to be solved urgently. No effective solution to this problem has been proposed.
Disclosure of Invention
The embodiment of the invention provides an interception device and an interception method for a micro-power wireless network, which at least solve the technical problem of how to enable a manager or a maintainer of the micro-power wireless network to master information transmitted by signal sending equipment in the network in the networking or actual operation process of the micro-power wireless network.
According to an aspect of an embodiment of the present invention, there is provided an interception apparatus for a micropower wireless network, including: the receiver is used for receiving wireless signals sent by signal sending equipment in the micropower wireless network and converting the wireless signals into digital signals; the processor is connected with the receiver and used for analyzing the information meeting the first preset condition from the digital signal; and the display is connected with the processor and used for displaying the analyzed information.
Preferably, the receiver includes: a clock generator for generating a clock signal; and the wireless receiving module is connected with the clock generator and used for receiving a plurality of wireless signals transmitted by one or more signal transmitting devices and converting each of the plurality of wireless signals received in the same time interval into a corresponding digital signal according to a time sequence corresponding to the clock signal.
Preferably, the processor includes: the judging module is connected with the receiver and used for judging whether the digital signal meets a second preset condition or not; the analysis module is connected with the judgment module and is used for analyzing the information from the digital signal according to a preset analysis rule when the judgment module judges that the digital signal meets the second preset condition; the first preset condition includes the second preset condition and the preset analysis rule.
Preferably, the processor further comprises: and the setting module is connected with the judging module and/or the analyzing module and is used for setting the second preset condition and/or the preset analyzing rule.
Preferably, the digital signal carries a data packet, and the second preset condition includes at least one of: the method comprises the following steps of presetting conditions of an MAC layer of a data packet, presetting conditions of a NET layer of the data packet and presetting conditions of an ASP layer of the data packet.
Preferably, the listening device further comprises: a first communication module, connected to the processor, for transmitting the information to the outside of the interception device; and/or a memory, connected to the processor, for storing the information.
Preferably, the receiver includes: the second communication module is used for sending the digital signal; the processor comprises: and the third communication module is connected to the second communication module through a wired or wireless data transmission channel and is used for receiving the digital signal.
Preferably, the processor further comprises: and the power supply module is connected with the third communication module and used for supplying power to the processor and supplying power to the receiver through the third communication module and the second communication module.
Preferably, the second communication module and the third communication module include a USB interface and/or a serial interface; the data transmission channel comprises a USB data transmission line and/or a serial port line.
According to another aspect of the embodiments of the present invention, there is also provided an interception method for a micropower wireless network, including: the receiver in the listening device receives a wireless signal sent by a signal sending device in the micropower wireless network; the receiver converts the received wireless signal into a digital signal and sends the digital signal to a processor in the listening device; the processor analyzes information meeting a first preset condition from the digital signal; and displaying the analyzed information.
In the embodiment of the invention, a mode that a receiver receives and converts a wireless signal transmitted by signal transmitting equipment in a micro-power wireless network is adopted to convert the wireless signal to be intercepted into a digital signal, and then the aim of presenting the communication and operation conditions of the micro-power wireless network in the networking or operation process of the micro-power wireless network to management or maintenance personnel is achieved through the discrimination and analysis processing of the digital signal by a processor and the display action of a display on the analyzed data, so that the technical problem of how to enable the management or maintenance personnel of the network to master the information transmitted by the signal transmitting equipment in the network in the networking or actual operation process of the micro-power wireless network is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a micropower wireless network according to the prior art;
fig. 2 is a schematic diagram of an alternative listening device for a micropower wireless network according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another alternative listening device for a micropower wireless network according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an alternative listening method for a micro-power wireless network according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example 1
According to an embodiment of the present invention, there is provided an interception apparatus for a micropower wireless network, as shown in fig. 2, the interception apparatus includes:
1) a receiver 202, configured to receive a wireless signal sent by a signal sending device in a micro-power wireless network, and convert the wireless signal into a digital signal;
2) the processor 204 is connected with the receiver 202 and used for analyzing the information meeting the first preset condition from the digital signal;
3) a display 206, coupled to the processor 204, for displaying the parsed information.
It should be clear that one of the problems to be solved by the technical solutions of the present invention is to provide an interception device, so as to intercept a wireless signal transmitted in a micropower wireless network, and further sequentially present information content carried in the wireless signal to a management or maintenance staff of the micropower wireless network in a visual form, so that the management or maintenance staff can conveniently grasp the operation status of the micropower wireless network and devices in the wireless network in real time. Specifically, in the embodiment of the present invention, a typical micro-power wireless network may be formed by a plurality of smart meters and a concentrator corresponding to the plurality of smart meters, where the concentrator may perform bidirectional communication with a server operating a power marketing service through a Packet Radio service gprs (general Packet Radio service) network, and further may forward received data to the plurality of smart meters through the micro-power wireless network, and in this scenario, the wireless signal may represent a wireless signal for micro-power wireless network communication sent by the concentrator. Of course, the above is only an example and is not the only implementation way of the present invention, for example, in some embodiments of the present invention, the wireless signal may also be transmitted by other signal transmitting devices, and the signal transmitting device may not be limited to the application related to the power grid system, and the present invention is not limited thereto.
In order to solve the above problem, in the embodiment of the present invention, the receiver 202 may implement the reception of the wireless signal, however, the receiving manner of the receiver 202 is not limited in the present invention, for example, it may be used to gate the wireless signal in a preset frequency band, and may also implement the reception of the wireless signal in a frequency region or multiple frequency bands with a larger range by means of frequency sweeping.
Specifically, in the embodiment of the present invention, the receiver 202 may generally include a wireless receiving module, wherein the wireless receiving module may include an antenna and a wireless receiving chip, such as a wireless receiving module packaged in a conventional form of an add-on circuit board, and more specifically, the wireless receiving chip may be a radio frequency chip, but the present invention is not limited thereto, and the wireless receiving chip may also be determined according to a communication mode specifically used by a current and future micro-power wireless network, which does not affect implementation of the technical solution of the present invention and implementation of the technical effect thereof.
In addition, the receiver 202 may further convert the received wireless signal into a digital signal for subsequent processing by the processor 204 connected thereto based on the digital signal and data carried by the digital signal. Specifically, in the embodiment of the present invention, the above conversion function may also be performed by a wireless receiving chip, for example, it may perform processes such as amplification, demodulation, decoding, and decryption on a wireless signal, which is not limited in this respect, and may be determined according to a specific communication mode, such as an adopted communication protocol.
Further optionally, considering that the listening device listens to a plurality of wireless signals using the same or different communication protocols at the same time and avoids mutual interference of the plurality of wireless signals during the listening process, the receiver 202 may process the plurality of wireless signals received by the receiver in accordance with a timing sequence corresponding to the clock signal in combination with the clock signal, for example, the receiver 202 may process the plurality of wireless signals in a time-division manner, or may buffer the received signals or data represented by the received signals and sequentially process the buffered data in accordance with the receiving sequence and the timing sequence, which is not limited in this embodiment of the invention. That is, in the embodiment of the present invention, as an optional manner, the receiver 202 may include:
1) a clock generator for generating a clock signal;
2) and the wireless receiving module is connected with the clock generator and is used for receiving a plurality of wireless signals sent by one or more signal sending devices and converting each of the plurality of wireless signals received in the same time interval into a corresponding digital signal according to a time sequence corresponding to the clock signal.
Further, according to the interception apparatus provided by the embodiment of the present invention, the processor 204 connected to the receiver 202 may parse the information satisfying the first preset condition from the digital signal, so as to screen out the information content actually required by the interception operation. Specifically, in the embodiment of the present invention, the processor 204 may include:
1) the judging module is connected with the receiver 202 and used for judging whether the digital signal meets a second preset condition or not;
2) the analysis module is connected with the judgment module and used for analyzing information from the digital signal according to a preset analysis rule when the judgment module judges that the digital signal meets a second preset condition; the first preset condition comprises a second preset condition and a preset analysis rule.
In the embodiment of the present invention, the determination module connected to the receiver 202 may be used to discriminate the digital signal converted from the wireless signal and the wireless signal, so as to screen out actually required information content, specifically, in some embodiments of the present invention, the determination of whether the digital signal satisfies the second preset condition may be expressed as determining whether a data packet carried by the digital signal satisfies a preset format, such as a predetermined data transmission protocol. For example, as a possible implementation manner, in an embodiment of the present invention, the digital signal may carry a data packet, and the second preset condition may include at least one of: the judgment module can judge whether the data packet belongs to data transmitted by the signal transmitting equipment for the interception operation according to the judgment conditions respectively or one by one.
Further, in the embodiment of the present invention, the screened digital signal may be analyzed by an analysis module connected to the determination module to obtain information carried in the digital signal, and the analyzed information may be regarded as information content transmitted by the signal sending device for the listening operation. On this basis, according to the interception device provided by the embodiment of the present invention, the analyzed information can be further transmitted to the display 206, and the information is presented to the management or maintenance personnel through the display 206, so as to solve the technical problem how to enable the management or maintenance personnel of the network to master the information transmitted by the signal sending equipment in the network in the networking or actual operation process of the micropower wireless network.
Further optionally, in an embodiment of the present invention, the processor 204 may further include:
1) and the setting module is connected with the judging module and/or the analyzing module and is used for setting a second preset condition and/or a preset analyzing rule.
Generally, in the embodiment of the present invention, the determining module, the parsing module and the setting module may be generally implemented by one or more microprocessors 204 or hosts and software logic written into the microprocessors 204 or the hosts, but the present invention is not limited thereto, and the determining module, the parsing module and the setting module may also be implemented by hardware logic, such as field Programmable gate array fpga (field Programmable gate array), etc., which does not affect implementation of the technical solution of the present invention and implementation of the technical effect thereof, and similar implementations should be considered to be within the protection scope of the present invention.
In addition, optionally, in the embodiment of the present invention, the listening device may further include:
1) a first communication module, connected to the processor 204, for transmitting information to the outside of the listening device; and/or the presence of a gas in the gas,
2) a memory coupled to the processor 204 for storing information.
By the mode, the interception device can further transmit the intercepted required information to the main control equipment and the database, so that subsequent data sorting and analysis are facilitated.
The technical scheme and the principle of the invention are explained through the embodiments. More specific and preferred embodiments of the above-described interception device will be described below with reference to the accompanying drawings and examples.
As shown in fig. 3, as a possible implementation manner, in an embodiment of the present invention, the receiver 202 may include:
1) a second communication module 302 for transmitting digital signals;
the processor 204 may include:
1) the third communication module 304 is connected to the second communication module 302 through a wired or wireless data transmission channel, and is configured to receive the digital signal.
Specifically, in some embodiments of the present invention, the receiver 202 and the processor 204 may be formed as a single body, and may communicate with each other through the second communication module 302 and the third communication module 304, specifically, the receiver 202 may be a circuit board, processing of an electrical signal is implemented at a physical layer, the processor 204 may be a host, processing of a digital signal and data carried by the digital signal is implemented through software logic, and the circuit board as the receiver 202 may be plugged into or connected to the host through a transmission line. In the above scenario, since the host is universal, only the receiver 202 in the form of a physical module needs to be designed and manufactured, so that design and manufacturing costs are saved, and the size of the receiver 202 can be small, so that field use by management or maintenance personnel is facilitated.
Further, in this embodiment of the present invention, the processor 204 may further include:
1) and a power module, connected to the third communication module 304, for supplying power to the processor 204 and the receiver 202 through the third communication module 304 and the second communication module 302.
In this manner, a power module within the receiver 202 may be simplified or even eliminated, thereby further reducing the size and cost of the receiver 202. Specifically, the second communication module 302 and the third communication module 304 may include USB interfaces, and the data transmission channel therebetween may include a USB data transmission line, wherein, since the USB interfaces have power connection terminals and the USB data transmission line includes a power line, power supply from the processor 204 to the receiver 202 through the third communication module 304 and the second communication module 302 may be implemented through this configuration. Of course, this is only one of the feasible manners, and the second communication module 302 and the third communication module 304 and the data transmission channel therebetween may also adopt other feasible existing or self-designed schemes, for example, in some embodiments of the present invention, the second communication module 302 and the third communication module 304 may also include a serial interface, and the data transmission channel may include a serial port, which is not limited by the present invention.
The present invention is further explained by providing a preferred embodiment, but it should be noted that the preferred embodiment is only for better describing the present invention and should not be construed as unduly limiting the present invention.
Example 2
According to an embodiment of the present invention, there is also provided a listening method for a micropower wireless network based on the listening device in embodiment 1, as shown in fig. 4, the method includes:
s402: a receiver in the listening device receives a wireless signal sent by a signal sending device in the micropower wireless network;
s404: the receiver converts the received wireless signal into a digital signal and sends the digital signal to a processor in the listening device;
s406: the processor analyzes information meeting a first preset condition from the digital signal;
s408: and displaying the analyzed information.
It should be clear that, one of the problems to be solved by the technical solutions of the present invention is to provide an interception method, so as to intercept a wireless signal transmitted in a micropower wireless network, and further sequentially present information content carried in the wireless signal to a management or maintenance staff of the micropower wireless network in a visual form, so that the management or maintenance staff can conveniently grasp the operation status of the micropower wireless network and devices in the wireless network in real time. Specifically, in the embodiment of the present invention, a typical micro-power wireless network may be formed by a plurality of smart meters and a concentrator corresponding to the plurality of smart meters, wherein the concentrator may perform bidirectional communication with a server operating a power marketing service through a GPRS network, and further may forward received data to the plurality of smart meters through the micro-power wireless network, and in this scenario, the wireless signal may represent a wireless signal sent by the concentrator for micro-power wireless network communication. Of course, the above is only an example and is not the only implementation way of the present invention, for example, in some embodiments of the present invention, the wireless signal may also be transmitted by other signal transmitting devices, and the signal transmitting device may not be limited to the application related to the power grid system, and the present invention is not limited thereto.
According to the interception method provided by the embodiment of the present invention, in step S402, a receiver in the interception apparatus as described in embodiment 1 may intercept a signal sending device in a micropower wireless network, for example, for the micropower wireless network in a smart grid application, the receiver may determine whether a corresponding wireless signal exists in a space in a frequency sweeping manner, where the corresponding wireless signal may have a predetermined frequency band and meet a requirement of a predetermined protocol, where the protocol may specifically be a communication protocol or standard issued by a power supply management department. Of course, this is merely an example and is not intended to limit the present invention.
Further, in step S404, the receiver may convert the received wireless signal into a digital signal and transmit the digital signal to a processor in the listening device, so that the processor performs subsequent processing based on the digital signal. Specifically, in the embodiment of the present invention, the above conversion function may be implemented by a wireless receiving chip, for example, it may implement processes such as amplification, demodulation, decoding, and decryption on a wireless signal, which is not limited in this respect, and may depend on a specific communication mode, such as an adopted communication protocol.
Further, in the embodiment of the present invention, through step S406, the processor may analyze information satisfying the first preset condition from the digital signal. In particular, reference may be made to the corresponding description in embodiment 1 for the operation of the processor and its possible structure, and the present invention will not be described herein in a repeated manner.
Finally, the parsed information may be displayed through step S408. For example, in the embodiment of the present invention, the information may be presented to the management or maintenance personnel through the display, so as to solve the technical problem of how to enable the management or maintenance personnel of the network to master the information transmitted by the signal sending device in the network during the networking or actual operation of the micropower wireless network.
The present invention is further explained by providing a preferred embodiment, but it should be noted that the preferred embodiment is only for better describing the present invention and should not be construed as unduly limiting the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An interception apparatus for a micropower wireless network, comprising:
the receiver is used for receiving a wireless signal sent by signal sending equipment in the micropower wireless network and converting the wireless signal into a digital signal;
the processor is connected with the receiver and used for analyzing information meeting a first preset condition from the digital signal;
and the display is connected with the processor and used for displaying the analyzed information.
2. The listening device of claim 1, wherein the receiver comprises:
a clock generator for generating a clock signal;
and the wireless receiving module is connected with the clock generator and used for receiving a plurality of wireless signals sent by one or more signal sending devices and converting each of the plurality of wireless signals received in the same time interval into a corresponding digital signal according to a time sequence corresponding to the clock signal.
3. The listening device of claim 1, wherein the processor comprises:
the judging module is connected with the receiver and used for judging whether the digital signal meets a second preset condition or not;
the analysis module is connected with the judgment module and used for analyzing the information from the digital signal according to a preset analysis rule when the judgment module judges that the digital signal meets the second preset condition; wherein,
the first preset condition comprises the second preset condition and the preset analysis rule.
4. The listening device of claim 3, wherein the processor further comprises:
and the setting module is connected with the judging module and/or the analyzing module and is used for setting the second preset condition and/or the preset analyzing rule.
5. The interception device according to claim 3, wherein said digital signal carries a data packet, and said second predetermined condition comprises at least one of: the method comprises the following steps of presetting conditions of an MAC layer of a data packet, presetting conditions of a NET layer of the data packet and presetting conditions of an ASP layer of the data packet.
6. The listening device of claim 1, further comprising:
the first communication module is connected with the processor and used for transmitting the information to the outside of the interception device; and/or the presence of a gas in the gas,
and the memory is connected with the processor and used for storing the information.
7. The interception device according to any one of claims 1 to 6,
the receiver includes: the second communication module is used for sending the digital signal;
the processor includes: and the third communication module is connected to the second communication module through a wired or wireless data transmission channel and is used for receiving the digital signal.
8. The listening device of claim 7, wherein the processor further comprises:
and the power supply module is connected with the third communication module and used for supplying power to the processor and supplying power to the receiver through the third communication module and the second communication module.
9. The listening device of claim 7,
the second communication module and the third communication module comprise USB interfaces and/or serial interfaces;
the data transmission channel comprises a USB data transmission line and/or a serial port line.
10. An interception method for a micropower wireless network, comprising:
the receiver in the interception apparatus according to any one of claims 1 to 9 receives a wireless signal transmitted by a signal transmission device in a micropower wireless network;
the receiver converts the received wireless signals into digital signals and sends the digital signals to a processor in the listening device;
the processor analyzes information meeting a first preset condition from the digital signal;
and displaying the analyzed information.
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Application publication date: 20150826 |