A data transmission method and system applied to a catering device and an electronic device

Abstract

The application discloses a data transmission method and system applied to a catering equipment and an electronic device, and comprises the following steps: collecting oil fume detection data in a flue of the catering equipment; using a dynamic encryption algorithm to encrypt an access password to obtain a dynamic password, combining the dynamic password with an identifier to form a first encrypted ciphertext, wherein the access password is an access password plaintext pre-assigned to the current catering equipment; encapsulating the first encrypted ciphertext and the oil fume detection data to form a data message, and sending the data message to a collection server. The data message is analyzed, and it is judged whether the current catering equipment is a legal equipment and whether it is an authenticated equipment, so that the legality and authenticity of the current equipment of the access end are ensured, the authenticity of the data is further ensured, and the security of the data transmission is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of data transmission, in particular to a data transmission method, system and electronic device applied to a catering equipment. BACKGROUND

[0002] In recent years, catering oil fume pollution is one of the most intense atmospheric pollution problems. Catering oil fume has become another major source of atmospheric pollution after industrial waste gas and automobile exhaust. On the other hand, the number of catering enterprises is huge, and they are scattered, disorderly and mixed, which cannot be fully covered by manpower supervision. Only relying on on-site inspection by supervisors cannot meet the current environmental protection requirements.

[0003] However, in the existing catering equipment, the oil fume monitoring system transmits by using HJ / T212 protocol, which has obvious deficiencies:

[0004] 1) The transmission is in plaintext, which cannot authenticate the authenticity and legality of the access terminal, and it is easy to cause unlicensed and unauthenticated clients to access the system, attack the oil fume system or fake data;

[0005] 2) The unauthenticated client can impersonate the accessed oil fume monitor and send false data to confuse the real data, resulting in a decrease in the efficiency of oil fume pollution control;

[0006] 3) The unauthenticated client can send a large number of messages to cause an impact on the load of the oil fume system, resulting in the failure of the normal operation of the oil fume system.

[0007] Therefore, it is a technical problem to be solved by those skilled in the art to find a transmission method that can encrypt the transmitted data and ensure the authenticity and legality of the access terminal. SUMMARY

[0008] The purpose of the present application is to provide a data transmission method applied to a catering equipment, which can dynamically encrypt the oil fume detection data transmitted by the equipment, ensure the authenticity and legality of the access terminal, and improve the security of the oil fume monitoring system.

[0009] To achieve the above purpose, the present application provides a data transmission method applied to a catering equipment, comprising the following steps:

[0010] Collecting oil fume detection data in the flue of the catering equipment;

[0011] Encrypting the access password by using a dynamic encryption algorithm to obtain a dynamic password, combining the dynamic password with an identifier to form a first encrypted ciphertext, wherein the access password is a pre-assigned access password in plaintext of the current catering equipment;

[0012] The first encryption ciphertext and the oil fume detection data are encapsulated to form a data message, and the data message is sent to a collection server.

[0013] In an embodiment of the present application, the dynamic encryption algorithm specifically comprises:

[0014] The access password plaintext is encrypted using a TEA encryption algorithm to obtain a second encryption ciphertext; wherein a timestamp of the oil fume detection data and a device number of the current catering equipment are used as a secret key;

[0015] The second encryption ciphertext is converted using a Base64 encoding mode to generate the dynamic password.

[0016] In an embodiment of the present application, the data transmission method further comprises:

[0017] The collection server parses the data message to obtain a parsed message, wherein the parsed message comprises a device number, a timestamp, an identifier, a dynamic password and oil fume detection data of the current catering equipment;

[0018] According to the parsed message, it is determined whether the current catering equipment is a legal equipment, and if so, the oil fume detection data is processed.

[0019] In an embodiment of the present application, the determination of whether the current catering equipment is a legal equipment according to the parsed message specifically comprises:

[0020] It is determined whether the device number of the current catering equipment exists in the verification module, and if not, it is indicated that the current catering equipment is not a legal equipment, recorded in an alarm log, and the collection server does not process the oil fume detection data.

[0021] In an embodiment of the present application, the determination of whether the current catering equipment is a legal equipment according to the parsed message further comprises:

[0022] It is determined whether the configuration password corresponding to the catering equipment in the verification module is the same as the access password, and if not, it is indicated that the current catering equipment is not a legal equipment, recorded in an alarm log, and the collection server does not process the oil fume detection data.

[0023] In an embodiment of the present application, the determination of whether the configuration password corresponding to the catering equipment in the verification module is the same as the access password specifically comprises:

[0024] The dynamic password is decrypted to obtain a first password plaintext;

[0025] Judge whether the first cipher plaintext is consistent with the access password, if not, record to the alarm log, and the collection server does not process the oil fume detection data.

[0026] In an embodiment of the application, the data processing specifically includes:

[0027] According to the index formula of the current catering equipment, calculate the index value of the oil fume detection data;

[0028] Record the monitoring state corresponding to the oil fume detection data, and count the monitoring state and the index value into the real-time data table.

[0029] The application also provides a data transmission system applied to catering equipment, comprising:

[0030] An oil fume monitoring terminal is configured to collect real-time oil fume detection data in a flue of the catering equipment;

[0031] A secret key generation unit is configured to generate a secret key from a timestamp of the oil fume detection data and a device number of the catering equipment,

[0032] An encryption unit is configured to encrypt a plaintext of an access password pre-assigned to the current catering equipment by using a dynamic encryption algorithm to obtain a dynamic password, and combine the dynamic password with the identifier to form a first encrypted ciphertext;

[0033] An encapsulation unit is configured to encapsulate the first encrypted ciphertext and the oil fume detection data to generate a data packet;

[0034] A collection server is configured to receive the data packet;

[0035] An analysis unit is configured to analyze the data packet to generate an analysis packet;

[0036] A verification unit is configured to judge whether the device of the catering equipment is a legal device based on the analysis packet, if not, record to the alarm log, and the collection server does not process the oil fume detection data;

[0037] A data processing unit is configured to calculate an index value of the oil fume data of the legal catering equipment according to an index formula of the catering equipment, and record the index value into a real-time data table.

[0038] The application also provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program executable by the processor, and the processor executes the computer program to perform the data transmission method applied to the catering equipment according to any one of the above embodiments.

[0039] The application also provides a computer readable storage medium, characterized in that it comprises program codes, when the program codes are run on an electronic device, the program codes are used to make the electronic device execute the steps of the data transmission method applied to the catering equipment according to any one of the above.

[0040] Compared with the prior art, the application has the following beneficial effects:

[0041] 1. The access password plaintext of the current catering equipment is encrypted and Base64 encoded by an encryption algorithm to generate a dynamic password, and the dynamic password and the identifier are combined to form a first encrypted ciphertext, the first encrypted password and the oil fume detection data are packaged into a data message and sent to the collection server, the authenticity of the oil fume detection data is improved, and the security of data transmission is improved.

[0042] 2. The application judges whether the catering equipment is a legal equipment and whether it is an authenticated equipment according to the parsed message parsed by the collection server, prevents illegal equipment or unauthenticated equipment from sending oil fume detection data, ensures the authenticity and legality of the access end, and avoids confusing the real detection data.

[0043] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0045] Figure 1 is a data transmission method flowchart applied to catering equipment according to an embodiment of the present application;

[0046] Figure 2 is a data transmission system block diagram applied to catering equipment according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The specific embodiments of the present application will be described in detail below with reference to the drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0048] Unless otherwise clearly indicated, throughout the specification and claims, the terms "including", "includes" or "include" are used which are intended to be equivalent to the term "comprising" or "comprises" or "comprise", and thus specify the presence of stated features, elements, components, members, integers, steps, or the like, but do not preclude the presence or addition of one or more other features, elements, components, members, integers, steps, or the like.

[0049] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] As can be understood by those skilled in the art, TEA (Tiny Encryption Algorithm) is a block cipher algorithm, the plaintext and ciphertext block is 64 bits, the key length is 128 bits, and the increasing Delta (golden ratio) value is used as the change, so that the encryption of each round is different, and the iteration number of the encryption algorithm can be changed.

[0051] Base64 encoding method: three octets are converted into four six-bit bytes (the high bits of less than six bits are padded with 00), 3x8=4x6, so the content after base64 encoding is one third larger than the original.

[0052] HJ / T212: is a data transmission standard protocol formulated by the state environmental protection industry, and currently widely used are HJ / T212-2005 and HJ212-2017 communication protocols.

[0053] TCP / IP: Transmission Control Protocol / Internet Protocol, Transmission Control Protocol / Internet Protocol. Working in the network layer and transport layer of the OSI seven-layer model, it defines the standard of how electronic devices connect to the Internet and how data is transmitted between them.

[0054] According to some principles (different regions, different models, different manufacturers), the equipment is divided into different batches, and different access passwords can be assigned to different batches of equipment. Before accessing the oil fume detection equipment, the user applies for a password for the equipment to the enterprise; the enterprise sets a password for the equipment in the platform, that is, configures the password, and records the equipment number and the corresponding configuration password.

[0055] As shown in Figure 1 The application provides a data transmission method applied to a catering equipment, which comprises the following steps:

[0056] Collecting oil fume detection data in a flue of the catering equipment;

[0057] Encrypting the access password by using a dynamic encryption algorithm to obtain a dynamic password, combining the dynamic password with an identifier to form a first encrypted ciphertext, wherein the access password is a pre-assigned access password plaintext of the current catering equipment;

[0058] Packaging the first encrypted ciphertext and the oil fume detection data to form a data packet, and sending the data packet to a collection server.

[0059] In the application, the first encrypted ciphertext and the oil fume detection data are packaged according to the HJ / T212 protocol formulated by the national environmental protection industry.

[0060] It can be understood that the identifier is a PW field, and in the national standard 212 protocol, the PW field is an access password for data interaction between the equipment and the monitoring platform, which is used for verifying whether the equipment and the data are legal, and the format is "PW = configuration password", wherein the length of the "configuration password" is 6 (the number of characters or bytes), and the length of the "PW =" is 3 (the number of characters or bytes). In the embodiment of the application, the "configuration password" is expanded to 8 characters.

[0061] As a further embodiment of the application, the dynamic encryption algorithm specifically comprises:

[0062] Encrypting the access password plaintext by using a TEA encryption algorithm to obtain a second encrypted ciphertext; wherein a timestamp of the oil fume detection data and an equipment number of the current catering equipment are used as a secret key;

[0063] Converting the second encrypted ciphertext by using a Base64 encoding mode to generate the dynamic password.

[0064] Specifically, the 8-character, i.e. 64-bit access password plaintext is encrypted by using the TEA encryption algorithm, and the last 2 digits of the 14-character timestamp of the DateTime field of the collected oil fume data and the device number MN of the oil fume device are taken as the secret key, to generate a 64-bit second encryption ciphertext; the 64-bit second encryption ciphertext is converted into 11 characters by using the Base64 encoding mode, i.e. the length of the dynamic password is 11 characters. It can be understood that the length of the first encryption ciphertext is 14 characters.

[0065] As a further embodiment of the present application, the data transmission method further comprises:

[0066] The collection server parses the data message to obtain a parsed message, wherein the parsed message comprises the device number, the timestamp, the identifier, the dynamic password and the oil fume detection data of the current catering device;

[0067] According to the parsed message, it is determined whether the catering device is a legal device, if yes, the oil fume detection data is processed; if not, the collection server does not process the oil fume detection data, and the data transmission is ended.

[0068] As a further embodiment of the present application, the determination of whether the catering device is a legal device according to the parsed message specifically comprises:

[0069] It is determined whether the device number of the catering device exists in the verification module, if not, it is indicated that the catering device is not a legal device, and is recorded in the alarm log, and the collection server does not process the oil fume detection data; if yes, the next step is performed;

[0070] It is determined whether the configuration password corresponding to the catering device in the verification module is the same as the access password, if not, it is indicated that the catering device is not a legal device, and is recorded in the alarm log, and the collection server does not process the oil fume detection data; if yes, it is indicated that the current catering device is a legal device, and the user uses the access password plaintext set by the enterprise for the current catering device, the catering device of the access end is a legal device, and the collection server processes the oil fume detection data.

[0071] Further, the determination of whether the configuration password corresponding to the catering device in the verification module is the same as the access password specifically comprises:

[0072] The dynamic password is decrypted to obtain a first password plaintext;

[0073] It is determined whether the first password plaintext is consistent with the access password, if not, it is recorded in the alarm log, and the collection server does not process the oil fume detection data.

[0074] By comparing the device number of the current catering equipment in the analysis message with the catering equipment number in the verification module, it is judged whether the current catering equipment is legal. If the current catering equipment is legal, it is further judged whether the current catering equipment has been authenticated. If it has been authenticated, the oil fume detection data is processed by the collection server. If the current catering equipment is illegal and / or not authenticated, the oil fume detection data is not processed by the collection server, the data transmission ends, and the legality and authenticity of the access end are ensured.

[0075] As a further embodiment of the present application, the data processing specifically includes:

[0076] According to the index formula of the current catering equipment, the index value of the oil fume detection data is calculated.

[0077] The monitoring state corresponding to the oil fume detection data is recorded, and the monitoring state and the index value are recorded in the real-time data table.

[0078] It can be understood that the index formula can be set according to actual needs. For example, the unit of particulate matter in the data processing unit is milligrams, but the unit of particulate matter in the data collected by the oil fume monitoring terminal is micrograms. Therefore, the content of particulate matter in the collected data is calculated according to the unit in the data processing unit. When the oil fume concentration value in the data collected by the oil fume monitoring terminal exceeds the maximum oil fume concentration value that can be processed in the data processing unit, it is considered that the data collected by the oil fume monitoring terminal is invalid, and this data is abandoned. The data processing unit also calculates the monitoring state of the current catering equipment, and can also calculate the length of time when the current catering equipment is not linked, and record it in the real-time data table, so as to facilitate the viewing of the results of the data processing unit.

[0079] The present application dynamically encrypts the oil fume detection data collected by the oil fume monitoring terminal to obtain a dynamic password, combines the dynamic password with the identifier to form a first encrypted ciphertext, and encapsulates the encrypted ciphertext and the oil fume detection data into a data message and sends it to the collection server. The collection server analyzes the data message and judges whether the current catering is a legal device. If the current device is not a legal device, the collection server does not process the oil fume detection data, the data transmission ends, ensures the legality and authenticity of the access end, ensures the authenticity of the oil fume detection data, and improves the security of data transmission.

[0080] As shown in Figure 2 The present application also provides a data transmission system applied to a catering equipment, which includes an oil fume monitoring terminal, a secret key generation unit, an encryption unit, an encapsulation unit, a collection server, an analysis unit, a verification unit and a data processing unit. The oil fume monitoring terminal is used for collecting real-time oil fume detection data in the flue of the catering equipment. The oil fume monitoring terminal can be a single oil fume monitoring instrument, or a collection of multiple oil fume index detection devices.

[0081] The key generation unit is configured to generate a key by combining the timestamp of the oil fume detection data and the device number of the catering device.

[0082] The encryption unit is configured to encrypt the access password plaintext pre-assigned to the current catering device by using a dynamic encryption algorithm to obtain a dynamic password, and combine the dynamic password with the identifier to form a first encrypted ciphertext.

[0083] The encapsulation unit is configured to encapsulate the first encrypted ciphertext and the oil fume detection data to generate a data packet.

[0084] The collection server is configured to receive the data packet and parse the data packet.

[0085] The parsing unit is configured to parse the data packet to generate a parsed packet.

[0086] The verification unit is configured to determine whether the device of the catering device is a legal device based on the parsed packet, and if not, record the determination in an alarm log, and the collection server does not perform data processing on the oil fume detection data.

[0087] The data processing unit is configured to calculate an index value according to an index formula of the catering device based on the oil fume data of the legal catering device, and add the index value to a real-time data table.

[0088] The application also provides an electronic device including a memory and a processor, wherein the memory stores a computer program executable by the processor, and when the processor executes the computer program, the processor executes the data transmission method for a catering device according to any one of the preceding embodiments.

[0089] The application also provides a computer readable storage medium, which includes program code, and when the program code is executed on an electronic device, the program code is used to make the electronic device execute the steps of the data transmission method for a catering device according to any one of the preceding embodiments.

[0090] Those skilled in the art should understand that the embodiments of the application can be provided as a method, a system, or a computer program product. Therefore, the application can be in the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the application can be in the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

[0091] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 one or more flowcharts and / or blocks

[0092] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 one or more flowcharts and / or blocks

[0093] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 one or more flowcharts and / or blocks

[0094] The foregoing description of specific exemplary embodiments of the application has been presented for the purposes of illustration and description. It is not intended to be a limitation on the broad concepts of the application. Obviously, many modifications and variations of the specific exemplary embodiments described herein are possible in light of this disclosure, which is intended to be protected not only by the forms described but also by any alternative forms to which the principles disclosed in this document can be applied. The embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the application be defined by the claims and their equivalents.

Claims

1. A data transmission method applied to catering equipment, characterized in that, Includes the following steps: Collect data on oil fume detection inside the exhaust ducts of catering equipment; The access password is encrypted using a dynamic encryption algorithm to obtain a dynamic password. The dynamic password is combined with an identifier to form the first encrypted ciphertext. The access password is the plaintext of the access password pre-assigned to the current catering equipment. The first encrypted ciphertext and the oil fume detection data are encapsulated into a data packet, and the data packet is sent to the acquisition server; The dynamic encryption algorithm specifically includes: encrypting the plaintext access password using the TEA encryption algorithm to obtain a second encrypted ciphertext; wherein the timestamp of the fume detection data and the equipment number of the current catering equipment are used as the key; and converting the second encrypted ciphertext using Base64 encoding to generate the dynamic password; The data acquisition server parses the data packets to obtain parsed packets, which include the current catering equipment's equipment number, timestamp, identifier, dynamic password, and oil fume detection data. Based on the parsed message, determine whether the current catering equipment is a legal equipment. If so, process the oil fume detection data. Specifically, determining whether the current catering equipment is a legitimate device based on the parsed message includes: The system checks whether the device number of the current catering equipment exists in the inspection module. If it does not exist, it means that the current catering equipment is not a legitimate device, and this is recorded in the alarm log. The data collection server does not process the oil fume detection data. The system determines whether the configuration password corresponding to the catering equipment in the inspection module is the same as the access password. If they are different, it indicates that the current catering equipment is not a legitimate device, and this is recorded in the alarm log. The data collection server does not process the oil fume detection data. The step of determining whether the configuration password corresponding to the catering equipment in the verification module is the same as the access password specifically includes: The dynamic password is decrypted to obtain the first password plaintext; It is determined whether the first plaintext password is consistent with the access password. If they are inconsistent, it is recorded in the alarm log, and the data collection server does not process the oil fume detection data.

2. The data transmission method applied to catering equipment as described in claim 1, characterized in that, The dynamic encryption algorithm specifically includes: The 8-character plaintext access password is encrypted using the TEA encryption algorithm. The last two characters of the 14-character timestamp of the DateTime field of the collected oil fume data and the 2-character device number MN of the current catering equipment are used as the key to generate a 64-bit second encrypted ciphertext. The 64-bit second encrypted ciphertext is then converted into an 11-character dynamic password using Base64 encoding.

3. The data transmission method applied to catering equipment as described in claim 1, characterized in that, The step of determining whether the current catering equipment is a legitimate equipment based on the parsed message also includes: The system compares the device number of the current catering equipment in the parsed message with the catering equipment number in the verification module to determine whether the current catering equipment is legitimate. If they are different, the current catering equipment is determined to be illegitimate, the data collection server does not process the oil fume detection data, and the data transmission ends.

4. The data transmission method applied to catering equipment as described in claim 1, characterized in that, The data processing specifically includes: Calculate the index value of the oil fume detection data based on the index formula of the current catering equipment; Record the monitoring status corresponding to the oil fume detection data, and enter the monitoring status and indicator values ​​into the real-time data table.

5. A data transmission system for use in catering equipment, characterized in that, The data transmission system applied to catering equipment is used to execute the data transmission method applied to catering equipment as described in claim 1, including: The fume monitoring terminal is used to collect real-time fume detection data from the exhaust ducts of catering equipment; The key generation unit is used to generate a key by combining the timestamp of the oil fume detection data with the equipment number of the catering equipment. The encryption unit is used to encrypt the plaintext of the access password pre-assigned to the current catering equipment using a dynamic encryption algorithm to obtain a dynamic password, and to combine the dynamic password with the identifier to form the first encrypted ciphertext. The dynamic encryption algorithm specifically includes: encrypting the plaintext access password using the TEA encryption algorithm to obtain a second encrypted ciphertext; wherein the timestamp of the fume detection data and the equipment number of the current catering equipment are used as the key; and converting the second encrypted ciphertext using Base64 encoding to generate the dynamic password. The encapsulation unit is used to encapsulate the first encrypted ciphertext and the oil fume detection data to generate a data packet; A data acquisition server is used to receive the data packets; The parsing unit is used to parse the data packet and generate a parsed packet, wherein the parsed packet includes the current catering equipment number, timestamp, identifier, dynamic password and oil fume detection data; The verification unit is used to determine whether the catering equipment is a legitimate device based on the parsed message. If not, it is recorded in the alarm log, and the data acquisition server does not process the oil fume detection data. The data processing unit is used to calculate the index value of the oil fume data of legal catering equipment according to the index formula of catering equipment, and record it into the real-time data table.

6. An electronic device comprising a memory and a processor, wherein the memory stores a computer program executable by the processor, characterized in that: When the processor runs the computer program, it performs the data transmission method applied to catering equipment as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, It includes program code that, when run on an electronic device, causes the electronic device to perform the steps of the data transmission method for catering equipment as described in any one of claims 1-4.

Images