CN113923274A - Method, device and storage medium for judging whether transmission data is interfered - Google Patents
Method, device and storage medium for judging whether transmission data is interfered Download PDFInfo
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Abstract
The invention provides a method for judging whether transmission data is interfered, which is applied to a satellite communication system of a monitoring center end and an automatic weather station end and is characterized in that the method comprises the following steps: the method comprises the steps that an automatic meteorological station end obtains meteorological data and carries out standardization processing on the meteorological data to obtain initial standard data; the automatic meteorological station adds a private check value to the initial standard data to obtain data to be transmitted, and generates data frames of the data to be transmitted based on a preset data transmission protocol and sends the data frames to the satellite terminal; the monitoring center end receives the data frame forwarded by the satellite end; the monitoring center end respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; and when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the data corresponding to the data frame is not interfered in the transmission process. The judgment efficiency and accuracy are improved.
Description
Technical Field
The present invention relates to the field of data communication technologies, and in particular, to a method, an apparatus, and a storage medium for determining whether transmission data is interfered.
Background
The land of China is a large object and a vast range of members, and no 2G \3G \4G \5G network coverage exists in islands, frontiers, unmanned areas and other places, but automatic weather stations installed in the places need to transmit data to a monitoring center, and a satellite communication machine based on a Beidou satellite can be adopted for data transmission at this time. However, in practical use, it is found that satellite communication machines of many manufacturers are easily interfered by frequency bands from 2.4GHz to 2.5GHz, for example, WIFI devices interfere with the satellite communication machines seriously, and because the monitoring center is generally provided with more or less WIFI devices, interference is generated on received data.
When the satellite communication machine transmits data, a packet head, a check bit and a packet end symbol are added to the transmitted data, but the check bit is only added when the received data is output to the peripheral equipment, and whether the received data content is interfered in the idle path transmission cannot be judged, for example, a group of hexadecimal characters '0102030405' needs to be transmitted, if the satellite communication machine at the receiving end is interfered, the group of data is jumped to '091A 5D C9 BG', the check bit added to a data frame sent by the satellite communication machine to a computer of a monitoring center is calculated according to the string of data '091A 5D C9 BG', but not the original string of data '0102030405', so when the satellite communication machine is used for data transmission, once the data is jumped due to interference, the check bit cannot be identified only by the existing check code of the communication machine, the method can cause serious distortion of transmitted data, has low judgment efficiency and poor accuracy, and influences the data utilization rate.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, and a storage medium for determining whether transmission data is interfered, so as to solve the problem in the prior art that the efficiency and accuracy of determining whether transmission data is interfered are low only by using a check code of a transmission protocol.
In a first aspect, a method for determining whether transmission data is interfered according to an embodiment of the present invention is applied to a satellite communication system of a monitoring center and an automatic weather station, where the automatic weather station includes an automatic weather station and a first satellite communicator, the method includes:
acquiring meteorological data acquired by an automatic meteorological station;
carrying out standardization processing on the meteorological data to obtain initial standard data;
adding a private check value to the initial standard data to obtain data to be transmitted;
and generating a data frame by the first satellite communication machine based on a preset data transmission protocol and sending the data frame to the satellite terminal.
Preferably, the normalizing the meteorological data to obtain initial standard data includes:
encoding the meteorological data by adopting a key value pair dictionary encoding mode to obtain key value pair format data;
and coding the key value pair format data by adopting a BCD coding mode to obtain initial standard data.
Preferably, the encoding the meteorological data by using a key-value dictionary encoding method to obtain key-value format data includes:
aiming at the meteorological data, selecting keys preset in a set to encode the corresponding meteorological data, wherein values corresponding to all the keys in the set have preset threshold values;
adding a private verification value to the initial standard data to obtain data to be transmitted comprises:
dividing the initial standard data into a plurality of sections of sub-initial standard data based on a preset data transmission protocol, and adding a private check value to each section of sub-initial standard data to obtain a plurality of sub-data to be transmitted.
In a second aspect, a method for determining whether transmission data is interfered according to an embodiment of the present invention is applied to a monitoring center and a satellite communication system of an automatic weather station, where the monitoring center includes a monitoring terminal and a second satellite communicator, and the method includes:
the second satellite communication machine receives the data frame forwarded by the satellite terminal;
the monitoring terminal respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
and when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the received data is not interfered.
Preferably, the monitoring terminal performs a preset protocol check, a private check value check, a BCD code check, and a key value-pair check on each data frame, respectively, including:
for each data frame, the following steps are sequentially executed:
carrying out preset protocol check on a protocol check value of a current data frame according to a preset data transmission protocol;
if the preset protocol passes the verification, performing private verification value verification on the data part of the current data frame;
if the private check value passes the check, performing BCD code check on the data part of the current data frame;
and if the BCD code passes the verification, performing key value pair verification on the data part of the current data frame.
Preferably, the performing the private check value check on the data portion of the current data frame includes:
calculating to obtain a check value aiming at the data part of the current data frame, checking the check value obtained by calculation and a private check value carried by the data part of the current data frame, and judging whether the check value and the private check value are consistent;
if the private check values are not consistent, the private check value is not checked to be passed, otherwise, the private check value is checked to be passed;
the performing BCD code check on the data portion of the current data frame includes:
checking whether the data part of the current data frame contains non-numeric characters;
if so, the BCD code check is not passed, otherwise, the BCD code check is passed;
the key-value pair checking of the data part of the current data frame includes:
judging whether all KEY KEYs of the data part of the current data frame contain unknown KEYs;
if so, the KEY value pair verification is not passed, otherwise, whether the value corresponding to each KEY KEY exceeds a preset threshold value is judged;
if yes, the key-value pair verification is not passed, otherwise, the key-value pair verification is passed.
In a third aspect, a method for determining whether transmission data is interfered according to an embodiment of the present invention is applied to a satellite communication system of a monitoring center and an automatic weather station, and the method includes:
the method comprises the steps that an automatic meteorological station end obtains meteorological data and carries out standardization processing on the meteorological data to obtain initial standard data;
the automatic meteorological station adds a private check value to the initial standard data to obtain data to be transmitted, and generates data frames of the data to be transmitted based on a preset data transmission protocol and sends the data frames to the satellite terminal;
the monitoring center end receives the data frame forwarded by the satellite end;
the monitoring center end respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
and when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the data corresponding to the data frame is not interfered in the transmission process.
In a fourth aspect, an apparatus for determining whether transmission data is interfered according to an embodiment of the present invention is applied to a satellite communication system at a monitoring center and an automated weather station, the apparatus including:
the standardization processing module is used for automatically acquiring meteorological data from a meteorological station and standardizing the meteorological data to obtain initial standard data;
the data processing module is used for adding a private check value to the initial standard data by the automatic meteorological station end to obtain data to be transmitted, generating a data frame by the data to be transmitted based on a preset data transmission protocol and sending the data frame to the satellite end; and/or
The receiving module is used for receiving the data frame forwarded by the satellite terminal at the monitoring center terminal;
the checking module is used for the monitoring center end to respectively carry out preset protocol checking, private check value checking, BCD code checking and key value pair checking on each data frame;
and the determining module is used for determining that the data corresponding to the data frame is not interfered in the transmission process when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification.
In a fifth aspect, an apparatus for determining whether transmission data is interfered according to an embodiment of the present invention includes: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to implement the method for determining whether transmission data is interfered according to any one of the first to third aspects.
In a sixth aspect, a non-transitory computer-readable storage medium is provided according to an embodiment of the present invention, and the non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method for determining whether transmission data is interfered according to any one of the first to third aspects.
The method, the device and the storage medium for judging whether the transmission data is interfered provided by the embodiment of the invention at least have the following beneficial effects:
according to the method, the meteorological data are processed through the automatic meteorological station end to obtain initial standard data, a private check value is added to the initial standard data to obtain data to be transmitted, the data to be transmitted are generated into data frames based on a preset data transmission protocol and are sent to the satellite end, and the monitoring center end receives the data frames forwarded by the satellite end; respectively carrying out preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; when all the data frames pass the verification, determining that the data corresponding to the data frame is not interfered in the transmission process; whether the transmitted data are interfered or not can be effectively identified and judged, so that the available interpretation identification of the data is improved, the use efficiency of the data is improved, and the reliability of data transmission is improved.
The transmission data can be preliminarily judged through the preset protocol check, and the preset protocol check is related to the transmission protocol of the satellite communication machine, so that the judgment of the preset protocol check is relatively easy; the preset protocol check related to the transmission protocol can not guarantee the consistency of the transmission data, when the transmission data jumps, the protocol check may pass, at the moment, whether the data is interfered or not is judged only by using the preset protocol check, and the problem of inaccurate judgment exists similarly to the existing judgment method, so that the acquired meteorological data is processed at an automatic meteorological station end to obtain initial standard data, a private check value is added to the initial standard data to obtain the data to be transmitted, the data to be transmitted is generated into a data frame to be sent to a satellite end based on the preset data transmission protocol, and a monitoring center end receives the data frame forwarded by the satellite end; respectively carrying out preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; and when all the data frames pass the verification, determining that the data corresponding to the data frame is not interfered in the transmission process. By the private check value eye checking, the problem of detection judgment errors existing in the existing protocol check can be effectively solved, so that the judgment accuracy is improved by the private check value eye checking; secondly, only the private check value of the data frame is checked, and whether the specific content of the transmitted data is interfered or not cannot be judged, so that the meteorological data to be transmitted is subjected to standardized processing at the automatic meteorological station end to form a data code format which is convenient for the monitoring center end to check after transmission, and the monitoring center end checks the data content through BCD code check and key value check, so that whether the actual content of the data is interfered or not is judged, and the judgment efficiency is improved; wherein, the BCD code is used instead of the binary code, because the binary code of some values may be accidentally identical to the protocol keyword of the satellite communication machine, which easily causes misjudgment or extra overhead, thereby affecting the efficiency, for example, 13 o 10 o, the binary code is 0D0A, and the binary code of the return line is identical to the binary code of the return line; meanwhile, if non-BCD code characters appear, once characters which are not 0-9 appear, the received data are interfered and are easy to identify. The checking efficiency is improved, and the efficiency and the accuracy for judging whether the transmission data are interfered are further improved; and coding the mode by using a KEY-VALUE pair mode, and performing KEY-VALUE pair verification, wherein once a KEY field appearing in the received data cannot be found in the dictionary set or a VALUE exceeds a threshold VALUE, the received data is interfered, the logic is more strict, the expansion is convenient, and the efficiency of judging whether the content is interfered is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a network architecture of a system for determining whether transmission data is interfered according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for determining whether transmission data is interfered according to the architecture of fig. 1;
fig. 3 is a flowchart of a method for determining whether transmission data is interfered according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for determining whether transmission data is interfered according to fig. 3;
fig. 5 is a flowchart of another method for determining whether transmission data is interfered according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for determining whether transmission data is interfered according to fig. 5;
fig. 7 is a block diagram of an apparatus for determining whether transmission data is interfered according to fig. 3 according to an embodiment of the present invention;
fig. 8 is a block diagram of an apparatus for determining whether transmission data is interfered according to fig. 5;
fig. 9 is a block diagram of an apparatus for determining whether transmission data is interfered according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Fig. 1 is a schematic network architecture diagram of a satellite communication system applied to a monitoring center terminal and an automated weather station terminal according to an embodiment of the present application, as shown in fig. 1, the system at least includes: the system comprises an automatic weather station terminal 1, a satellite terminal 2 and a monitoring center terminal 3. Wherein the automatic weather station end 1 comprises an automatic weather station 11 and a first satellite communicator 12, the monitoring center end 3 comprises a monitoring terminal 31 and a second satellite communicator 32, the automatic weather station end 1, the satellite end 2 and the monitoring center end 3 establish network connection, the first satellite communicator and the second satellite communicator respectively establish network connection with the satellite end, the automatic weather station is used for collecting and outputting weather data, for example, the wind direction, the wind power, the temperature, the humidity, and the like, the monitoring terminal 31 may be a computer, a tablet computer, a mobile phone, and the like, an application program for determining whether transmission data is interfered may be installed on the monitoring terminal 31, the satellite terminal may be one or more satellites, or may be a data transfer center where a satellite and a ground station interact with each other, and here, the satellite terminal should be understood as a data transfer center for data transmission, and cannot be understood as a satellite or a combination of multiple satellites only in a limited manner.
Based on the architecture of fig. 1, fig. 2 is a flowchart of a method for determining whether transmission data is interfered according to an embodiment of the present application, and is applied to a satellite communication system of a monitoring center terminal and a weather station terminal, as shown in fig. 2, a specific process of the method for determining whether transmission data is interfered is as follows:
s101, a meteorological station terminal acquires meteorological data and carries out standardization processing on the meteorological data to obtain initial standard data;
in the implementation steps, specifically, the automatic weather station collects real-time weather conditions and outputs corresponding weather data, such as wind direction, wind power, temperature, humidity, and the like; the method comprises the steps that a meteorological station end obtains meteorological data output by an automatic meteorological station and carries out standardization processing on the meteorological data to obtain initial standard data; for example, an automated weather station detects real-time weather conditions and outputs corresponding weather data: the method comprises the steps that wind direction is 106 degrees, wind speed is 1.3m/s, temperature is 26.8 degrees, air pressure is 1012 hectopascal (hPa) and the like, then the meteorological data are standardized, wherein the standardization processing process comprises the step of coding the meteorological data by adopting a key value pair dictionary coding mode to obtain key value pair format data; the corresponding meteorological data should be encoded by selecting keys preset in the set, wherein values corresponding to the keys in the set have preset threshold values; it can be understood that one key in the set corresponds to one weather type, for example, the key 0001 corresponds to wind direction, the key 0101 corresponds to wind speed, the key 0201 corresponds to temperature, and the key 0301 corresponds to air pressure, and after the key value pair format data is obtained by encoding, the key value pair format data is encoded by using a BCD encoding method to obtain initial standard data; the value data of the key value pair format data can be processed by using the BCD code, the processed value data does not contain other non-numeric characters except numeric characters, and further the subsequent BCD code check is facilitated, the subsequent BCD code check is that a binary data stream is correspondingly converted into a hexadecimal format character string, such as a decimal number 93, the binary form of the compressed BCD code is 10010011, the hexadecimal form of the compressed BCD code is 93, and characters, such as A-F characters, which are not supposed to appear in a check data frame can only be 0-9 characters. Taking 8421BCD encoding mode as an example, the hexadecimal form of the encoded example meteorological data is 00010106010100130201026803011012; during the subsequent BCD code check, if the non-numeric characters are checked out, the transmission is interfered. The BCD code (Binary-Coded Decimal) uses 4-bit Binary number to represent 10 digits of 0-9 in 1-bit Decimal number, and is a Binary digit coding form and Binary Coded Decimal code. The BCD code uses four bits to store a decimal number, so that the conversion between binary and decimal is fast. This coding technique is most commonly used in the design of accounting systems, as accounting systems often require accurate calculations on very long strings of numbers. Compared with the common floating-point notation, the BCD code is adopted, so that the accuracy of the numerical value can be saved, and the time consumed by the computer in the floating-point operation can be saved. Moreover, for other calculations that require high precision, BCD encoding is also commonly used.
S102, adding a private check value to the initial standard data by the weather station end to obtain data to be transmitted, generating a data frame by the data to be transmitted based on a preset data transmission protocol, and sending the data frame to the satellite end;
in the implementation steps, specifically, based on a preset private check value calculation principle, a corresponding private check value is obtained by calculating initial standard data, the private check value is added to the initial standard data, so that data to be transmitted is obtained, and a data frame is generated from the data to be transmitted and sent to the satellite terminal based on a preset data transmission protocol; secondly, it can be understood that, based on the data transmission protocol, when the byte length of the initial standard data exceeds the maximum transmission data frame byte length of the protocol to be transmitted, the initial standard data should be divided into sub-initial standard data whose trunk sections do not exceed the maximum transmission data frame byte length, and the corresponding private check value of each sub-initial standard data is calculated, and the calculated private check value is added to the corresponding sub-initial standard data, so as to obtain sub-data to be transmitted, and all sub-data frames generated by all sub-data to be transmitted are sent to the satellite terminal based on the preset data transmission protocol; the weather station end can send the data frame to the satellite end through the first satellite communication equipment. The so-called Data frame (Data frame) is a protocol Data unit of a Data link layer, and comprises three parts: frame header, data section, frame trailer. The frame head and the frame tail contain necessary control information, such as synchronization information, address information, error control information, and the like; the data portion includes data passed down by the network layer, such as IP packets, packets to be transmitted, and so on.
S103, the monitoring center end receives the data frame forwarded by the satellite end;
in the foregoing implementation steps, specifically, the monitoring center may receive the data frame forwarded by the satellite terminal through the second satellite communication device.
S104, the monitoring center end respectively performs protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
in the above embodiment, specifically, each data frame is analyzed, and the following steps are sequentially performed on the analyzed data frames:
carrying out protocol check on a protocol check value of a current data frame according to a preset data transmission protocol; the header and the trailer of the data frame contain some necessary control information, such as synchronization information, address information, error control information, etc.; recalculating according to the output transmission protocol to obtain a corresponding protocol check value, comparing and checking the protocol check value carried by the frame head or the frame tail with the corresponding protocol check value, and judging whether the protocol check values are consistent;
if the protocol check value passes the check, the private check value check is carried out on the data part of the current data frame; specifically, a check value is calculated for a data part of the current data frame, and whether the calculated check value is consistent with a private check value carried by the data part of the current data frame is checked;
if the data frame is consistent with the current data frame, the private check value passes the check, and the data part of the current data frame is subjected to BCD code check; specifically, whether the character codes in the data part of the current data frame contain non-numeric characters is checked;
if not, the BCD code passes the check, and key value pair check is carried out on the data part of the current data frame; specifically, judging whether all KEY KEYs of the data part of the current data frame contain unknown KEYs; the unknown key is not included in the preset set;
if so, the KEY value pair verification is not passed, otherwise, whether the value corresponding to each KEY KEY exceeds a preset threshold value is judged;
if yes, the key-value pair verification is not passed, otherwise, the key-value pair verification is passed.
And S105, when the verified data frame passes through protocol verification, private verification value verification, BCD code verification and key value pair verification, determining that the data corresponding to the data frame is not interfered in the transmission process.
According to the method, meteorological data are processed through an automatic meteorological station end to obtain initial standard data, a private check value is added to the initial standard data to obtain data to be transmitted, the data to be transmitted are generated into data frames based on a preset data transmission protocol and are sent to a satellite end, and a monitoring center end receives the data frames forwarded by the satellite end; respectively carrying out preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; when all the data frames pass the verification, determining that the data corresponding to the data frame is not interfered in the transmission process; whether the transmitted data are interfered or not can be effectively identified and judged, so that the available interpretation identification of the data is improved, the use efficiency of the data is improved, and the reliability of data transmission is improved.
The transmission data can be preliminarily judged through the preset protocol check, and the preset protocol check is related to the transmission protocol of the satellite communication machine, so that the judgment of the preset protocol check is relatively easy; the preset protocol check related to the transmission protocol can not guarantee the consistency of the transmission data, when the transmission data jumps, the protocol check may pass, at the moment, whether the data is interfered or not is judged only by using the preset protocol check, and the problem of inaccurate judgment exists similarly to the existing judgment method, so that the acquired meteorological data is processed at an automatic meteorological station end to obtain initial standard data, a private check value is added to the initial standard data to obtain the data to be transmitted, the data to be transmitted is generated into a data frame to be sent to a satellite end based on the preset data transmission protocol, and a monitoring center end receives the data frame forwarded by the satellite end; respectively carrying out preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; and when all the data frames pass the verification, determining that the data corresponding to the data frame is not interfered in the transmission process. By the private check value eye checking, the problem of detection judgment errors existing in the existing protocol check can be effectively solved, so that the judgment accuracy is improved by the private check value eye checking; secondly, only the private check value of the data frame is checked, and whether the specific content of the transmitted data is interfered or not cannot be judged, so that the meteorological data to be transmitted is subjected to standardized processing at the automatic meteorological station end to form a data code format which is convenient for the monitoring center end to check after transmission, and the monitoring center end checks the data content through BCD code check and key value check, so that whether the actual content of the data is interfered or not is judged, and the judgment efficiency is improved; wherein, the BCD code is used instead of the binary code, because the binary code of some values may be accidentally identical to the protocol keyword of the satellite communication machine, which easily causes misjudgment or extra overhead, thereby affecting the efficiency, for example, 13 o 10 o, the binary code is 0D0A, and the binary code of the return line is identical to the binary code of the return line; meanwhile, if non-BCD code characters appear, once characters which are not 0-9 appear, the received data are interfered and are easy to identify. The checking efficiency is improved, and the efficiency and the accuracy for judging whether the transmission data are interfered are further improved; and coding the mode by using a KEY-VALUE pair mode, and performing KEY-VALUE pair verification, wherein once a KEY field appearing in the received data cannot be found in the dictionary set or a VALUE exceeds a threshold VALUE, the received data is interfered, the logic is more strict, the expansion is convenient, and the efficiency of judging whether the content is interfered is improved.
The embodiment of the present invention further provides a method for determining whether transmission data is interfered, which is applied to a satellite communication system of a monitoring center terminal and an automatic weather station terminal, where the automatic weather station terminal includes an automatic weather station and a first satellite communicator, and as shown in fig. 3, the method includes the following steps:
s201, acquiring meteorological data acquired by an automatic meteorological station;
s202, carrying out standardization processing on the meteorological data to obtain initial standard data;
in the above embodiment, specifically, the normalization processing is performed on the meteorological data, that is, the meteorological data is normalized and encoded by selecting key values in the corresponding set, and the processed meteorological data is encoded by using BCD encoding, so as to obtain initial standard data;
s203, adding a private check value to the initial standard data to obtain data to be transmitted;
in the above embodiment, specifically, a private check value is added to the initial standard data, the private check value is generated according to a preset private check value generation rule, and after the check value is added to the initial standard data, when the subsequent private check value is checked, the carried private check value is removed from the data content, a new check value is obtained by recalculating according to the preset private check value generation rule, and the newly calculated check value is compared with the originally carried check value for checking, and if the comparison result is consistent, the private check value passes the check; when the initial standard data content is more, namely bytes are longer, the initial standard data is divided into proper sub-standard data according to the satellite communication machine transmission protocol, and corresponding private check values are generated for each sub-standard data.
And S204, generating a data frame by the first satellite communication machine based on a preset data transmission protocol and sending the data frame to the satellite terminal.
In the above embodiment, the data content of the data to be transmitted includes the initial standard data and the private verification value corresponding thereto, and the first satellite communication device generates the data frame of the data to be transmitted based on the preset data transmission protocol and transmits the data frame to the satellite terminal, and then generates the corresponding preset protocol verification value based on the preset data transmission protocol and places the corresponding preset protocol verification value at the end of the frame. Or the data content of the data to be transmitted comprises each sub-data to be transmitted, and each sub-data to be transmitted comprises the sub-standard data and the corresponding sub-private check value thereof; and generating a corresponding sub-preset protocol check value for each sub-to-be-transmitted data based on a preset data transmission protocol, and placing the corresponding sub-preset protocol check value at the tail of the frame.
Further, referring to fig. 4, in step S202, the normalizing the meteorological data to obtain initial standard data includes:
s2021, encoding the meteorological data by adopting a key value pair dictionary encoding mode to obtain key value pair format data;
illustratively, key 0001 may correspond to wind direction, key 0101 to wind speed, key 0201 to temperature, and key 0301 to barometric pressure;
s2022, coding the key value pair format data by adopting a BCD coding mode to obtain initial standard data.
Specifically, after encoding processing is performed to obtain key value pair format data, encoding processing is performed to the key value pair format data by adopting a BCD encoding mode to obtain initial standard data; the value data of the key value pair format data can be processed by using the BCD code, the processed value data does not contain other non-numeric characters except numeric characters, and further the subsequent BCD code check is facilitated, the subsequent BCD code check correspondingly converts the binary system into the hexadecimal format character string, for example, 93, the binary system is 10010011, the code of the BCD code is 0069, and the check data frame does not appear in the form of 00AF, 002D and the like. Taking 8421BCD encoding mode as an example, the format of the encoded weather data is 00010106010100130201026803011012; during the subsequent BCD code check, if the non-numeric characters are checked out, the transmission is interfered.
Further, in step S2021, the encoding the weather data by using a key-value dictionary encoding method, and obtaining key-value format data includes:
aiming at the meteorological data, selecting keys preset in a set to encode the corresponding meteorological data, wherein values corresponding to all the keys in the set have preset threshold values;
illustratively, key 0001 in the set corresponds to a wind direction, with a threshold of 0360;
in step S203, adding a private verification value to the initial standard data to obtain data to be transmitted includes:
dividing the initial standard data into a plurality of sections of sub-initial standard data based on a preset data transmission protocol, and adding a private check value to each section of sub-initial standard data to obtain a plurality of sub-data to be transmitted.
The embodiment of the present invention further provides a method for determining whether transmission data is interfered, which is applied to a monitoring center terminal and a satellite communication system of an automatic weather station terminal, where the monitoring center terminal includes a monitoring terminal and a second satellite communicator, and as shown in fig. 5, the method includes the following steps:
s301, a second satellite communication machine receives a data frame forwarded by a satellite terminal;
s302, the monitoring terminal respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
and S303, when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the received data is not interfered.
Further, referring to fig. 6, in step S302, the monitoring terminal performs preset protocol verification, private verification value verification, BCD code verification, and key value pair verification on each data frame, respectively, including:
for each data frame, the following steps are sequentially executed:
s3021, performing preset protocol check on the protocol check value of the current data frame according to a preset data transmission protocol;
s3022, if the preset protocol passes the verification, performing private verification value verification on the data part of the current data frame;
s3023, if the private verification value passes verification, performing BCD code verification on the data part of the current data frame;
and S3024, if the BCD code passes the verification, performing key value pair verification on the data part of the current data frame.
Further, the performing private check value check on the data portion of the current data frame includes:
calculating to obtain a check value aiming at the data part of the current data frame, checking the check value obtained by calculation and a private check value carried by the data part of the current data frame, and judging whether the check value and the private check value are consistent;
if the private check values are not consistent, the private check value is not checked to be passed, otherwise, the private check value is checked to be passed;
the performing BCD code check on the data portion of the current data frame includes:
checking whether the data part of the current data frame contains non-numeric characters;
specifically, for example, 93, its binary is 10010011, and its BCD code is 0069, then it should be checked that the data frame should not appear in the form of 00AF, 002D, and if 00AF, 002D appears, it indicates that the data portion of the current data frame contains non-numeric characters;
if so, the BCD code check is not passed, otherwise, the BCD code check is passed;
the key-value pair checking of the data part of the current data frame includes:
judging whether all KEY KEYs of the data part of the current data frame contain unknown KEYs;
specifically, if the 8090 is not contained in the set, but the KEY 8090 appears in the KEYs of the data portion, all KEY KEYs of the data portion representing the current data frame contain an unknown KEY;
if so, the KEY value pair verification is not passed, otherwise, whether the value corresponding to each KEY KEY exceeds a preset threshold value is judged;
specifically, if key 0001 in the set corresponds to a wind direction, the threshold is 0360; if the value corresponding to the key 0001 in the data part of the current data frame is 0400, the value corresponding to the key is more than a preset threshold value;
if yes, the key-value pair verification is not passed, otherwise, the key-value pair verification is passed.
Example 2
An embodiment of the present invention further provides a device for determining whether transmission data is interfered, which is applied to a satellite communication system of a monitoring center terminal and an automatic weather station terminal, and as shown in fig. 7 and 8, the device includes:
the standardization processing module 701 is used for automatically acquiring meteorological data by a meteorological station and standardizing the meteorological data to obtain initial standard data;
the data processing module 702 is configured to add a private check value to the initial standard data by the automatic weather station to obtain data to be transmitted, generate a data frame from the data to be transmitted based on a preset data transmission protocol, and send the data frame to the satellite; and/or
A receiving module 801, configured to receive, by the monitoring center, a data frame forwarded by the satellite end;
the verification module 802 is configured to perform, by the monitoring center, preset protocol verification, private verification value verification, BCD code verification, and key value pair verification on each data frame;
the determining module 803 is configured to determine that data corresponding to the data frame is not interfered in a transmission process when the verified data frame passes through the preset protocol verification, the private check value verification, the BCD code verification, and the key value pair verification.
The system for determining whether transmission data is interfered provided by the embodiment of the application can be used for the method executed by the meteorological station end and the monitoring center end in the above embodiments, and the implementation principle and the technical effect are similar with each other by referring to the above method embodiment for the relevant details, which is not described herein again.
It should be noted that: in the above embodiment, when the apparatus for determining whether transmission data is interfered is used to determine whether transmission data is interfered, only the division of the functional modules is used for illustration, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the apparatus for determining whether transmission data is interfered is divided into different functional modules by an internal structure of the apparatus, so as to complete all or part of the functions described above. In addition, the system for determining whether transmission data is interfered and the method for determining whether transmission data is interfered provided by the embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Example 3
The present embodiment provides an apparatus for determining whether transmission data is interfered, as shown in fig. 9, the apparatus includes a processor and a memory, where the processor and the memory may be connected by a bus or by other means, and fig. 9 takes the connection by the bus as an example.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), a Graphics Processing Unit (GPU), an embedded Neural Network Processor (NPU), other dedicated deep learning coprocessor, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like, or a combination thereof.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the method for determining whether transmission data is interfered in the embodiments of the present invention. The processor executes various functional applications and data processing of the processor by running the non-transitory software program, instructions and modules stored in the memory, that is, the method for determining whether transmission data is interfered in the above method embodiment 1 is implemented.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory and, when executed by the processor, perform a method of determining whether transmission data is interfered as shown in fig. 2.
In this embodiment, the memory stores a program instruction or a module of a method for judging whether transmission data is interfered, when the processor executes the program instruction or the module stored in the memory, the automatic meteorological station processes meteorological data to obtain initial standard data, adds a private check value to the initial standard data to obtain data to be transmitted, generates a data frame from the data to be transmitted based on a preset data transmission protocol and sends the data frame to the satellite terminal, and the monitoring center terminal receives the data frame forwarded by the satellite terminal; respectively carrying out preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame; and when all the data frames pass the verification, determining that the data corresponding to the data frame is not interfered in the transmission process. Whether the meteorological data are interfered in the transmission process is judged more fully and in more detail, the accuracy of judging whether the data transmission is interfered is improved, and the data utilization rate and the reliability of the data are further improved.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, where a computer-executable instruction is stored in the non-transitory computer-readable storage medium, and the computer-executable instruction may execute the method for determining whether transmission data is interfered in any of the above method embodiments. The non-transitory computer readable storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid-State Drive (SSD), or the like; the non-transitory computer readable storage medium may also include a combination of memories of the above kind.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, apparatus or non-transitory computer readable storage medium, all relating to or comprising a computer program product.
Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Obviously, the above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications to the above description could be made by those skilled in the art without departing from the spirit of the present application. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for judging whether transmission data is interfered or not is applied to a satellite communication system of a monitoring center terminal and an automatic weather station terminal, wherein the automatic weather station terminal comprises an automatic weather station and a first satellite communicator, and the method comprises the following steps:
acquiring meteorological data acquired by an automatic meteorological station;
carrying out standardization processing on the meteorological data to obtain initial standard data;
adding a private check value to the initial standard data to obtain data to be transmitted;
and generating a data frame by the first satellite communication machine based on a preset data transmission protocol and sending the data frame to the satellite terminal.
2. The method of claim 1, wherein the normalizing the weather data to obtain initial standard data comprises:
encoding the meteorological data by adopting a key value pair dictionary encoding mode to obtain key value pair format data;
and coding the key value pair format data by adopting a BCD coding mode to obtain initial standard data.
3. The method of claim 2, wherein the step of determining whether the data transmitted by the satellite communication device is interfered comprises:
the encoding processing of the meteorological data by adopting a key-value dictionary encoding mode to obtain key-value format data comprises the following steps:
aiming at the meteorological data, selecting keys preset in a set to encode the corresponding meteorological data, wherein values corresponding to all the keys in the set have preset threshold values;
adding a private verification value to the initial standard data to obtain data to be transmitted comprises:
dividing the initial standard data into a plurality of sections of sub-initial standard data based on a preset data transmission protocol, and adding a private check value to each section of sub-initial standard data to obtain a plurality of sub-data to be transmitted.
4. A method for judging whether transmission data is interfered is applied to a monitoring center terminal and a satellite communication system of an automatic weather station terminal, wherein the monitoring center terminal comprises a monitoring terminal and a second satellite communicator, and the method is characterized by comprising the following steps:
the second satellite communication machine receives the data frame forwarded by the satellite terminal;
the monitoring terminal respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
and when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the received data is not interfered.
5. The method according to claim 4, wherein the monitoring terminal performs a predetermined protocol check, a private check value check, a BCD code check, and a key value check on each data frame, respectively, and the method comprises:
for each data frame, the following steps are sequentially executed:
carrying out preset protocol check on a protocol check value of a current data frame according to a preset data transmission protocol;
if the preset protocol passes the verification, performing private verification value verification on the data part of the current data frame;
if the private check value passes the check, performing BCD code check on the data part of the current data frame;
and if the BCD code passes the verification, performing key value pair verification on the data part of the current data frame.
6. The method of claim 5, wherein the step of determining whether the transmission data is interfered comprises:
the performing private check value check on the data portion of the current data frame includes:
calculating to obtain a check value aiming at the data part of the current data frame, checking the check value obtained by calculation and a private check value carried by the data part of the current data frame, and judging whether the check value and the private check value are consistent;
if the private check values are not consistent, the private check value is not checked to be passed, otherwise, the private check value is checked to be passed;
the performing BCD code check on the data portion of the current data frame includes:
checking whether the data part of the current data frame contains non-numeric characters;
if so, the BCD code check is not passed, otherwise, the BCD code check is passed;
the key-value pair checking of the data part of the current data frame includes:
judging whether all KEY KEYs of the data part of the current data frame contain unknown KEYs;
if so, the KEY value pair verification is not passed, otherwise, whether the value corresponding to each KEY KEY exceeds a preset threshold value is judged;
if yes, the key-value pair verification is not passed, otherwise, the key-value pair verification is passed.
7. A method for judging whether transmission data are interfered or not is applied to a satellite communication system of a monitoring center end and an automatic weather station end, and is characterized by comprising the following steps:
the method comprises the steps that an automatic meteorological station end obtains meteorological data and carries out standardization processing on the meteorological data to obtain initial standard data;
the automatic meteorological station adds a private check value to the initial standard data to obtain data to be transmitted, and generates data frames of the data to be transmitted based on a preset data transmission protocol and sends the data frames to the satellite terminal;
the monitoring center end receives the data frame forwarded by the satellite end;
the monitoring center end respectively performs preset protocol verification, private verification value verification, BCD code verification and key value pair verification on each data frame;
and when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification, determining that the data corresponding to the data frame is not interfered in the transmission process.
8. An apparatus for determining whether transmission data is interfered, which is applied to a satellite communication system of a monitoring center terminal and an automatic weather station terminal, the apparatus comprising:
the standardization processing module is used for automatically acquiring meteorological data from a meteorological station and standardizing the meteorological data to obtain initial standard data;
the data processing module is used for adding a private check value to the initial standard data by the automatic meteorological station end to obtain data to be transmitted, generating a data frame by the data to be transmitted based on a preset data transmission protocol and sending the data frame to the satellite end; and/or
The receiving module is used for receiving the data frame forwarded by the satellite terminal at the monitoring center terminal;
the checking module is used for the monitoring center end to respectively carry out preset protocol checking, private check value checking, BCD code checking and key value pair checking on each data frame;
and the determining module is used for determining that the data corresponding to the data frame is not interfered in the transmission process when the verified data frame passes through the preset protocol verification, the private verification value verification, the BCD code verification and the key value pair verification.
9. An apparatus for determining whether data transmission is interfered, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing therein computer instructions, and the processor executing the computer instructions to perform the method of determining whether transmission data is interfered according to any one of claims 1 to 3, 4 to 6, or 7.
10. A non-transitory computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of determining whether transmission data is interfered according to any one of claims 1-3, 4-6, or 7.
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