CN115682393A - Air conditioner, operation terminal, and wireless communication system - Google Patents
Air conditioner, operation terminal, and wireless communication system Download PDFInfo
- Publication number
- CN115682393A CN115682393A CN202211259267.3A CN202211259267A CN115682393A CN 115682393 A CN115682393 A CN 115682393A CN 202211259267 A CN202211259267 A CN 202211259267A CN 115682393 A CN115682393 A CN 115682393A
- Authority
- CN
- China
- Prior art keywords
- control unit
- locking
- operation terminal
- key
- calculation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Lock And Its Accessories (AREA)
Abstract
An air conditioning device including an outdoor unit provided with an operation control unit and bidirectionally communicable with a remote server; the locking control unit can realize bidirectional near field communication with the operation terminal and is configured to generate and store a verification key according to an initial key and output a locking or unlocking instruction to the remote server through the operation control unit after receiving a locking or unlocking instruction comprising the initial key input by the operation terminal; and after receiving an iterative key generated based on the initial key and input by the operation terminal, controlling the outdoor unit to enter a locking state or release the locking state based on the locking instruction and a comparison result of the verification and the iterative key so as to prohibit or allow the outdoor unit to respond to the operation instruction output by the operation terminal or the remote server. An operation terminal and a wireless communication system are also provided. The invention can realize the locking and unlocking operation of the air conditioning equipment under remote intelligent control.
Description
Technical Field
The present application relates to the field of air conditioning technologies, and in particular, to an air conditioning device and a wireless communication system having the air conditioning device.
Background
With the increasing demand of intellectualization of the air conditioning unit, remote intelligent control needs to be realized. In order to realize remote intelligent control, equipment such as a remote server, gateway equipment, an air conditioning unit and the like is indispensable.
An air conditioning unit with a remote intelligent control function needs to have independent locking and unlocking functions; for example, in a debugging mode, a user is given a free trial right for a period of time; when the set time is over, the air conditioning unit enters a locking state and needs an operator to unlock; alternatively, when some devices in the modular air conditioning unit are abnormal, the operator needs to bring the air conditioning unit into a locked state for maintenance, and perform an unlocking operation when the maintenance is completed.
For example, chinese patent application (CN 104006469A) discloses an air conditioning apparatus, in which an operation terminal includes a near field communication module, a lock button, and a control module. When the locking key is triggered, the near field communication module is controlled to send authority parameters such as modes, temperature and wind speed to the air conditioner so that the air conditioner runs with the authority parameters, or when the locking key is triggered, the operation terminal with the main control authority and the operation terminal with the auxiliary control authority are respectively limited to have different functions.
In the technology disclosed in the above-mentioned chinese patent, the locking operation is implemented only based on the local air conditioning equipment and the operation terminal. How to realize locking and unlocking operations of air conditioning equipment under remote intelligent control is not disclosed in the prior art.
Disclosure of Invention
The present application, which has been made in view of the above circumstances, aims to achieve locking and unlocking operations of an air conditioning apparatus under remote intelligent control.
A first aspect of the present application provides an air conditioning device including: an outdoor unit in which an operation control unit is provided, the operation control unit being capable of bi-directional communication with a remote server; and the locking control unit can realize bidirectional near field communication with the operation terminal.
In some embodiments of the present application, the locking control unit is configured to, after receiving a locking instruction including an initial key input by the operation terminal, calculate and generate a verification key according to the initial key and store the verification key and output the locking instruction to the remote server through the operation control unit; and after receiving an iterative key which is input by the operation terminal and is generated based on the initial key calculation, controlling the outdoor unit to enter a locking state based on the locking instruction and a comparison result of the verification key and the iterative key so as to prohibit the outdoor unit from responding to the operation instruction output by the operation terminal or the remote server.
In some embodiments of the application, the locking control unit is configured to calculate and generate a verification key according to an initial key and store the verification key after receiving an unlocking instruction comprising the initial key and input by the operation terminal, and output the unlocking instruction to the remote server through the operation control unit; and after receiving an iterative key which is input by the operation terminal and is generated based on initial key calculation, controlling the outdoor unit to enter an unlocking state based on an unlocking instruction and a comparison result of the verification key and the iterative key so as to allow the outdoor unit to respond to the operation instruction output by the operation terminal or the remote server.
In some embodiments of the present application, the locking control unit is configured to output a communication protocol message including a locking state flag or an unlocking state flag to the operation terminal so that the operation terminal recognizes that the outdoor unit is in the locking state or the unlocking state based on the communication protocol message.
In some embodiments of the present application, the lock control unit is configured to add the state change identifier to the communication protocol message after generating the verification key according to the initial key calculation so that the operation terminal recognizes the lock state change or releases the lock state change of the outdoor unit based on the communication protocol message added with the state change identifier.
In some embodiments of the present application, the lock control unit performs the following steps in generating the verification key according to the initial key calculation:
configuring a first storage unit and a second storage unit which are the same to store a first data part and a second data part of the input initial key respectively;
taking the first data part and the set data information to carry out bitwise AND calculation, and when the result of the bitwise AND calculation is 1, shifting the first data part by one bit after circulating and carrying out XOR calculation with the second data part; when the calculation result of bitwise AND is 0, circularly shifting the first data part by one bit;
performing logic and calculation on a target byte and the calculation times in a frame of communication protocol text calculated by the locking control unit, wherein the ordinal number of the target byte is equal to the calculation times; when the logical AND calculation result is zero, no action is executed, or when the logical AND calculation result is not 0, the first data part and the second data part are taken to carry out XOR calculation, and the calculation result is stored in the first storage unit to finish the calculation of one byte;
the above processes are circulated until all bytes in a frame of communication protocol message are calculated;
the state value in the first memory cell is output as the verification key.
In some embodiments of the present application, if the total number of bytes of one frame of the communication protocol message output by the lock control unit to the operation terminal is an odd number, the communication protocol message includes the lock status flag.
In some embodiments of the present application, if the total number of bytes of one frame of the communication protocol message output to the operation terminal by the lock control unit is an even number, the communication protocol message includes the unlock status flag.
In some embodiments of the present application, the lock control unit is configured to add the last two bytes of the authentication key in the communication protocol text as the state change identifier after generating the authentication key according to the initial key calculation so that the operation terminal identifies the outdoor unit and the locked state or unlocks the locked state based on the communication protocol text added with the state change identification.
In some embodiments of the present application, in the near field communication activation state, the locking control unit is configured to read a data format code written in the internal static random access memory unit, and write the unit real-time operation data obtained from the operation control unit into the internal static random access memory unit for the operation terminal to read and display when the data format code is the first set format code.
In some embodiments of the present application, in the near field communication activation state, the lock control unit is configured to read the data format code written in the internal static random access memory unit, and allow the operation terminal to read and display the stored data in the internal read-only memory unit when the data format code is the second set format code.
In some embodiments of the present application, in the near field communication activation state, the locking control unit is configured to read the data format code written in the internal static random access memory unit, and allow the operation terminal to write the configuration data into the internal static random access memory unit to be stored in the internal read only memory unit when the data format code is the third set format code.
A second aspect of the present application provides an operation terminal for operating the air-conditioning apparatus as disclosed in the first aspect of the present application, the operation terminal being capable of bidirectional near field communication with a lock control unit provided in an outdoor unit of the air-conditioning apparatus.
In some embodiments of the present application, the operation terminal is configured to output a lock instruction including an initial key to the lock control unit; after a locking instruction is output to the locking control unit, an iterative key is calculated based on the initial key and is output to the locking control unit; after the operation terminal compares the iteration key with the verification key, the locking control unit configures an operation instruction for prohibiting the outdoor unit from responding to the operation terminal based on the comparison result and the locking instruction; wherein the authentication key is generated by the lock control unit based on an initial key calculation.
In some embodiments of the present application, the operation terminal is configured to output an unlock control instruction including an initial key to the lock control unit; after the unlocking control instruction is output to the locking control unit, an iterative key is calculated based on the initial key and is output to the locking control unit; after the operation terminal compares the iteration key with the verification key, the locking control unit configures an operation instruction allowing the outdoor unit to respond to the operation terminal based on the comparison result and the unlocking instruction; wherein the authentication key is generated by the lock control unit based on an initial key calculation.
In some embodiments of the present application, the operation terminal recognizes that the outdoor unit of the air conditioner is in the locked state or the unlocked state through a communication protocol message including a locked state flag or an unlocked state flag outputted from the lock control unit.
In some embodiments of the present application, the operation terminal recognizes the lock state change or unlock state change of the outdoor unit of the air conditioner through a communication protocol message added with a state change flag outputted from the lock control unit.
In some embodiments of the application, the following steps are executed when the operation terminal generates the iterative key according to the initial key calculation:
configuring a first terminal storage unit and a second terminal storage unit which are the same to respectively store a first data part and a second data part of the initial key;
taking the first data part and the set data information to carry out bitwise AND calculation, and when the result of the bitwise AND calculation is 1, shifting the first data part by one bit after circulating and carrying out XOR calculation with the second data part; when the bit-wise AND calculation result is 0, circularly shifting the first data part by one bit;
carrying out logic and calculation on a target byte and the calculation times in a frame of communication protocol text of an operation terminal, wherein the ordinal number of the target byte is equal to the calculation times; when the logic and calculation result is zero, no action is executed, or when the logic and calculation result is not 0, the first data part and the second data part are taken to carry out exclusive OR calculation, and the calculation result is stored in the first terminal storage unit to finish the calculation of one byte;
the above processes are circulated until all bytes in a frame of communication protocol message are calculated;
and outputting the state value in the first terminal storage unit as an iteration key.
A third aspect of the present application provides a wireless communication system comprising:
an air conditioning device including an outdoor unit in which an operation control unit and a lock control unit are provided;
a remote server capable of two-way communication with the operation control unit;
the operation terminal can realize bidirectional near field communication with the locking control unit;
the wireless communication system is configured to: the operation terminal outputs a locking instruction or a unlocking control instruction comprising an initial key to the locking control unit, and the locking control unit generates a verification key according to the initial key calculation and stores the verification key after receiving the locking instruction or the unlocking control instruction and outputs the locking instruction or the unlocking instruction to the remote server through the operation control unit; the operation terminal outputs an iterative key generated based on initial key calculation to the locking control unit, after receiving the iterative key, the locking control unit controls the outdoor unit to enter a locking state based on a locking instruction and a comparison result of the verification key and the iterative key so as to prohibit the outdoor unit from responding to the operation instruction output by the operation terminal or the remote server, or controls the outdoor unit to enter an unlocking state based on an unlocking instruction and a comparison result of the verification key and the iterative key so as to allow the outdoor unit to respond to the operation instruction output by the operation terminal or the remote server.
The method comprises the steps that a locking control unit and an operation terminal are utilized to conduct bidirectional near field communication, local locking and unlocking requirements are transmitted through an initial secret key and reported to a remote server through an operation control unit, the remote server stores the locking and unlocking requirements, the locking control unit further judges a locking and unlocking state based on a verification secret key calculated by the locking control unit and a received iteration secret key, and controls an outdoor unit according to the locking and unlocking state to allow or prohibit operation; the remote server keeps normal operation, calculation and instruction issuing states in the locking and unlocking process, the outdoor unit can quickly respond in the unlocking process, waiting is not needed, and the intelligent locking and unlocking system has the advantages of being good in sensitivity, high in accuracy and strong in fatigue resistance.
Drawings
FIG. 1 shows a block schematic diagram of an air conditioning apparatus in some embodiments of the present application;
FIG. 2 illustrates a block schematic diagram of an air conditioning unit in some embodiments of the present application;
FIG. 3 illustrates a flow chart of a lock control unit in some embodiments of the present application;
FIG. 4 illustrates a flow chart of a lock control unit in some embodiments of the present application;
FIG. 5 illustrates a flow chart of a lock control unit in some embodiments of the present application;
FIG. 6 illustrates a flow chart of a lock control unit in some embodiments of the present application;
FIG. 7 illustrates a flow chart of a lock control unit in some embodiments of the present application;
FIG. 8 illustrates a flow chart for operating a terminal, an air conditioning unit, and a remote server in some embodiments of the present application;
FIG. 9 illustrates a flow diagram for a lock control unit to generate an authentication key in some embodiments of the present application;
FIG. 10 is a block diagram illustrating a schematic structure of a lock control unit in some embodiments of the present application;
FIG. 11 illustrates a flow diagram of communication between an operator terminal and a lock control unit in some embodiments of the present application;
fig. 12 illustrates a communication flow diagram between an operation terminal, a lock control unit, and an operation control unit in some embodiments of the present application.
Detailed Description
To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to all of the elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
Exemplary embodiment 1
A first exemplary embodiment of the present invention will be described below with reference to the drawings.
A first embodiment of the present invention provides an air conditioning device 100.
The air conditioning apparatus 100 will be described below.
The air-conditioning apparatus 100 is an apparatus using a compression refrigeration cycle, and includes a refrigerant circuit including four main components, i.e., a compressor, a condenser, a throttle element, and an evaporator. In the refrigerant circuit, a refrigerant circulates through a compressor, a condenser, a throttling element and an evaporator in this order. The cooling and heating cycle of the air conditioning device 100 includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat the indoor space.
The air-conditioning apparatus 100 includes an outdoor unit 101, and the outdoor unit 101 is a part of a refrigeration cycle including a compressor, an outdoor heat exchanger, and an outdoor fan. In some alternative embodiments of the present application, the air conditioning device 100 may include an outdoor unit 101. In other alternative embodiments of the present application, the outdoor units 101 may be configured to operate in groups, for example, two outdoor units may be configured in a group, and the indoor units 102 corresponding to the outdoor units are configured to be installed in a matching manner. One compressor or a plurality of compressors may be provided for each outdoor unit 101, and ac power may be supplied to the compressors through an inverter device. When the output frequency of the frequency conversion device changes, the rotating speed of the compressor changes, and different air conditioning capacities are realized.
Each outdoor unit 101 can be matched with one or more indoor units 102, and the indoor unit 102 refers to a part comprising an indoor heat exchanger and an indoor fan. The indoor unit 102 may have an independent air supply structure, such as a wall-mounted air supply structure, a floor-mounted air supply structure, an air duct type air supply structure, or an air supply structure embedded in a ceiling.
The outdoor unit 101 is provided with an operation control unit 400. As the operation control unit 400, a CPU (central processing unit), a processing device such as a microprocessor, or a semiconductor Integrated Circuit (IC) or the like having a similar function can be used. The operation control unit 400 may be a program that causes a computer to execute the functions of the operation control unit 400 in the present invention. For example, the outdoor unit 101 includes an outdoor unit main board, and the operation control unit 400 is mounted on the outdoor unit main board, and is configured to drive at least the inverter device to operate, receive and process sampling signals of various sensors, and implement a necessary communication function.
The operation control unit 400 may bidirectionally communicate with the remote server 300. The bidirectional communication of the operation control unit 400 with the remote server 300 may be based on different communication ports and communication protocols, for example, wireless communication means such as 4G, 5G, NB-IoT, etc., while also not being limited to the bidirectional communication using the internet, a LAN (local area network), a wireless LAN, serial communication, etc., as a network. As shown in fig. 1 and 2, the operation control unit 400 performs bidirectional wireless communication with the remote server 300 using NB-IoT, for example.
The operation control unit 400 may receive an operation instruction from the remote server 300 to drive the frequency conversion device to operate.
An indoor unit main board is provided in the indoor unit 102. The indoor set mainboard is preferred to be provided with processing chip. The processing chip may be implemented using a CPU, a microprocessor, or a semiconductor integrated circuit having a similar function. The processing chip is configured to drive the indoor fan to work, receive and process sampling signals of various sensors and realize necessary communication functions.
The processing chip in the indoor unit 102 can communicate bi-directionally with the run control unit 400.
In some optional embodiments of the present application, the indoor unit 102 is correspondingly provided with a line controller 103, and the line controller 103 is provided with an operation interface for inputting a set temperature and an operation mode, and a display interface for displaying a real-time temperature or an operation state of an air-conditioning room. The line controller 103 may be in bidirectional communication with the processing chip.
In some optional embodiments of the present application, a remote controller is correspondingly disposed on the indoor unit 102, and a button for inputting a set temperature and an operation mode is disposed on the remote controller. The remote controller can be in communication connection with the processing chip.
In some optional embodiments of the present application, the indoor unit 102 is correspondingly in communication connection with the operation terminal 200, and the operation terminal 200 has an application interface, and can input a set temperature and an operation mode through the application interface and display a real-time temperature or an operation state of an air-conditioning room.
In some optional embodiments of the present application, the remote server 300 is correspondingly connected to the operation terminal 200 in a communication manner, and the operation terminal 200 has an application interface through which a set temperature, an operation mode, and a real-time temperature or an operation state of an air-conditioned room can be input.
The operation terminal 200 may be a portable mobile terminal such as a PC (personal computer), a smart phone, a tablet computer, a PDA (personal digital assistant), a wearable device, and the like. In the present application, the operation terminal 200 may include not only the terminal itself but also a repeater or a peripheral device, or an environment including an expansion board mounted on a computer, or a virtual machine, and the operation terminal 200 is not limited to these examples. An NFC (Near Field Communication) controller chip is integrated in the operation terminal 200, and the NFC controller chip combines an NFC reader-writer and an NFC tag and is disposed in the operation terminal 200 by using an embedded architecture.
A lock control unit 500 is also provided in the air conditioning device 100. An NFC controller chip embedded in the air-conditioning apparatus 100 may be used as the lock control unit 500, and a combination of an NFC tag, an NFC reader-writer chip, and a CPU or microprocessor may also be used as the lock control unit 500. The lock control unit 500 may also be a program that causes a computer to execute the functions of the lock control unit 500 in the present invention. The lock control unit 500 may implement bidirectional near field communication with the manipulation terminal 200.
In some embodiments of the present application, as shown in fig. 1, an NFC controller chip embedded on an outdoor unit main board may be used as the lock control unit 500.
In some embodiments of the present application, as shown in fig. 2, an NFC controller chip embedded in the line controller 103 may be used as the lock control unit 500.
Next, a configuration of the remote server 300 according to the present embodiment will be described. The remote server 300 (also referred to as a cloud server) includes components such as a processor, a storage unit, an input/output interface, and a communication interface.
The processor may be a dedicated processor, a Central Processing Unit (CPU), or the like. The processor may access the memory unit to execute instructions stored in the memory unit to perform the associated functions.
The memory unit may include volatile memory and/or nonvolatile memory. The storage unit is configured to store a program executed by the processor, data generated by the execution of the program by the processor, data acquired from the operation control unit 400 or the operation terminal 200, and other data used by the service according to the present embodiment.
The input/output interface may be a serial communication interface.
The communication interface may be a software interface supporting different wireless communication protocols, such as 4G, 5G, NB-IoT, LAN, bluetooth, etc.
The lock control unit 500 is configured to generate and store an authentication key based on the initial key calculation after receiving a lock instruction including the initial key or an unlock instruction input from the operation terminal 200. Meanwhile, a lock instruction or an unlock instruction is output to the remote server 300 through the operation control unit 400. And after receiving the iterative key generated based on the initial key calculation input by the operation terminal 200, controlling the outdoor unit 101 to enter a locked state based on the locking instruction and the comparison result of the verification key and the iterative key to prohibit the outdoor unit 101 from responding to the operation instruction output by the operation terminal 200 or the remote server 300. Or controls the outdoor unit 101 to enter an unlocked state based on the unlocking instruction and the comparison result of the authentication key and the iterative key to allow the outdoor unit 101 to respond to an operation instruction output from the operation terminal 200 or the remote server 300.
Referring to fig. 3, a flow of unlocking the air conditioning apparatus 100 will be described.
Step S101: the manipulation terminal 200 approaches the lock control unit 500 and the bidirectional near field communication is activated. The lock control unit 500 receives an unlocking instruction including an initial key input from the operation terminal 200 through the bidirectional near field communication.
Step S102: the lock control unit 500 generates and stores an authentication key based on the initial key calculation.
Step S103: the lock control unit 500 outputs the unlock instruction to the remote server 300 through the operation control unit 400, thereby implementing transparent transmission.
Step S104: the lock control unit 500 receives an iterative key generated based on the initial key calculation input from the operation terminal 200.
Step S105: the lock control unit 500 determines whether the authentication key is the same as the iteration key.
Step S106: if the authentication key is the same as the iterative key, the outdoor unit 101 is controlled to enter the unlock state by the operation control unit 400 to allow the outdoor unit 101 to respond to an operation instruction output from the operation terminal 200 or the remote server 300, for example, to control the operation frequency of the compressor according to the operation instruction.
Step S107: if the verification key is not identical to the iteration key, the unlocking fails, and the operation control unit 400 prohibits the compressor state change, for example, keeps the shutdown state unchanged.
When the air conditioning apparatus 100 having the remote intelligent control function needs to have independent locking and unlocking functions, for example, to meet the requirement of the commissioning mode, the unlocking can be achieved through the above-described communication process.
As shown in fig. 4, the method specifically includes the following steps:
step S201: the commissioning mode is started in which the outdoor unit 101 is allowed to respond to an operation instruction output from the operation terminal 200 or the remote server 300, for example, to control the operation frequency of the compressor according to the operation instruction.
Step S202: the operation control unit 400 determines whether the debug mode has reached a set time period, for example, six hours.
Step S203: and if the set time length is not reached, keeping the debugging mode unchanged.
Step S204: and if the set time length is reached, entering a locking state. In the locked state, the outdoor unit 101 is prohibited from responding to an operation instruction output from the operation terminal 200 or the remote server 300.
The locked state can be released after the following steps are performed.
Step S205: the lock control unit 500 determines whether an unlock instruction including an initial key is received from the operation terminal 200 by the bidirectional near field communication in the activated state, for example, the unlock instruction including the initial key is received by the operation terminal 200 of the installation maintenance person.
Step S206: and if an unlocking instruction comprising the initial key is received, generating a verification key according to the initial key calculation and storing the verification key.
Step S207: the unlock instruction is output to the remote server 300 through the operation control unit 400, and the set unlock state is transmitted to the remote server.
Step S208: if an unlocking instruction including the initial key is not received, the locking state is kept unchanged.
Step S209: after generating the authentication key and storing it, the lock control unit 500 receives the iterative key generated based on the initial key calculation input from the operation terminal 200.
Step S210: the lock control unit 500 determines whether the authentication key is the same as the iteration key.
Step S211: if the verification key is the same as the iteration key, the outdoor unit 101 is controlled to enter the unlocking state, so as to allow the outdoor unit 101 to successfully unlock in response to an operation instruction output by the operation terminal 200 or the remote server 300.
Step S212: if the verification key is different from the iteration key, unlocking fails, and the outdoor unit 101 is kept in a locked state.
When some of the devices in the modular air conditioning apparatus 100 are abnormal, the operator may also bring the air conditioning apparatus 100 into a locked state by the lock control unit 500 to perform maintenance, and perform an unlocking operation when the maintenance is completed.
As shown in fig. 5, the method specifically includes the following steps:
step S301: the manipulation terminal 200 approaches the lock control unit 500 and the bidirectional near field communication is activated. A lock instruction including an initial key input by the operation terminal 200 is received through the bidirectional near field communication.
Step S302: the lock control unit 500 generates and stores an authentication key based on the initial key calculation.
Step S303: the lock control unit 500 outputs a lock instruction to the remote server 300 via the operation control unit 400, and the set lock state is transmitted.
Step S304: the lock control unit 500 receives an iterative key generated based on the initial key calculation input from the operation terminal 200.
Step S305: the lock control unit 500 determines whether the authentication key is the same as the iteration key.
Step S306: if the authentication key is the same as the iteration key, the outdoor unit 101 is controlled to enter a locked state by the operation control unit 400 to prohibit the outdoor unit 101 from responding to an operation instruction output from the operation terminal 200 or the remote server 300.
Step S307: if the authentication key is not the same as the iteration key, the lock fails.
As shown in fig. 6, the process of performing the unlocking operation after the maintenance is completed includes the following steps:
step S401: the lock control unit 500 receives an unlock instruction including an initial key input by the operation terminal 200.
Step S402: the lock control unit 500 generates and stores an authentication key from the initial key calculation.
Step S403: the lock control unit 500 outputs an unlocking instruction to the remote server 300 through the operation control unit 400.
Step S404: the lock control unit 500 calls up the operation data of the air-conditioning apparatus 100 from the operation control unit 400 and outputs the air-conditioning apparatus operation data (for example, the state parameters referred to by the respective sensors, including the temperature sensor, the pressure sensor, and the like) to the operation terminal 200. On the other hand, the remote server 300 that receives the unlock instruction also calls the operation data of the air-conditioning apparatus 100 from the operation control unit 400.
Step S405: the lock control unit 500 receives the first intervention frequency calculated by the operation terminal 200 and generates a first operation instruction including the first intervention frequency and outputs to the operation control unit 400.
Step S406: the operation control unit 400 receives the second intervention frequency calculated by the remote server 300 and generates a second operation instruction including the second intervention frequency.
Step S407: the lock control unit 500 receives an iterative key generated based on the initial key calculation input from the operation terminal 200.
Step S408: the lock control unit 500 determines whether the authentication key is the same as the iteration key.
Step S409: if the verification key is not the same as the iteration key, unlocking fails.
Step S410: if the verification key is the same as the iteration key, the outdoor unit 101 is controlled to enter the unlocked state by the operation control unit 400 to allow the outdoor unit 101 to respond to the operation instruction output from the operation terminal 200 or the remote server 300, and the compressor is operated at the first intervention frequency or the second intervention frequency.
The air conditioning device 100 provided by the invention utilizes the bidirectional near field communication between the locking control unit 500 and the operation terminal 200, transmits the local locking and unlocking requirements through the initial key, and reports the local locking and unlocking requirements to the remote server 300 through the operation control unit 400, the remote server 300 stores the locking and unlocking requirements, the locking control unit 500 further judges the locking and unlocking states based on the verification key calculated by the locking control unit and the received iteration key, and controls the outdoor unit 101 according to the locking and unlocking states to allow or prohibit the operation; the remote server 300 keeps normal operation, calculation and instruction issuing states in the locking and unlocking process, the outdoor unit 101 can quickly respond in the unlocking process, waiting is not needed, and the method has the advantages of being good in sensitivity, high in accuracy and strong in fatigue resistance.
In some embodiments of the present application, the lock control unit 500 is configured to output a communication protocol message including a lock status flag or an unlock flag to the operation terminal 200 so that the operation terminal 200 recognizes that the outdoor unit 101 is in the lock status or the unlock status based on the communication protocol message.
If the total number of bytes of one frame of communication protocol message output to the operation terminal 200 by the lock control unit 500 is an odd number, the communication protocol message contains a lock status flag; if the total number of bytes of one frame of the communication protocol message output to the operation terminal 200 by the lock control unit 500 is an even number, the communication protocol message contains the unlock state flag.
The lock control unit 500 is configured to add the last two bytes of the authentication key in the communication protocol message as the state change identification after generating the authentication key according to the initial key calculation so that the operation terminal 200 recognizes the outdoor unit 101 and the locked state or the unlocked state based on the communication protocol message added with the state change identification.
For example, after the near field communication is activated, the total number of bytes of any frame of communication protocol message output by the lock control unit 500 to the operation terminal 200 is odd or even, and may be regarded as the lock status flag or the unlock flag, for example, a communication protocol message with an odd total number of bytes includes the lock flag, and a communication protocol message with an even total number of bytes includes the unlock flag.
In some embodiments of the present application, the lock control unit 500 is configured to add a state change identifier to the communication protocol message after generating the authentication key according to the initial key calculation so that the operation terminal 200 recognizes the lock state change or releases the lock state change of the outdoor unit 101 based on the communication protocol message added with the state change identifier. For example, the lock control unit 500 adds two bytes (e.g., two bytes of the lower address) of the authentication key to the communication protocol message to change the total number of bytes of the communication protocol message from odd to even, i.e., to change the lock state (from the lock state to the unlock state); or the lock control unit 500 adds two bytes (e.g., two bytes of the lower address) of the authentication key to the communication protocol message to change the total number of bytes of the communication message of one frame from even to odd, i.e., to change the unlocking state (from unlocking state to locking state).
Referring to fig. 7 and 8, a communication procedure between the operation terminal 200, the air-conditioning apparatus 100, and the remote server 300 will be described. The air conditioning device 100 is used as a communication subject and comprises the following steps:
step S501: the lock control unit 500 establishes bidirectional communication with the operation terminal 200. The lock control unit 500 of the air conditioning device 100 outputs a communication protocol message including the lock status flag to the operation terminal 200. Illustratively, upon receiving a communication protocol message including a lock status flag, the lock status of the air-conditioning apparatus 100 is displayed on the human-machine interface of the operation terminal 200. Similarly, after receiving the communication protocol message including the unlock status flag, the human-machine interface of the operation terminal 200 displays that the air-conditioning apparatus 100 is in the unlock status.
Step S502: the unlocking operation is performed through the application interface of the operation terminal 200, and the lock control unit 500 receives an unlocking instruction including an initial key input by the operation terminal 200.
Step S503: the lock control unit 500 generates and stores an authentication key from the initial key calculation.
Step S504: the lock control unit 500 outputs an unlocking instruction to the remote server 300 through the operation control unit 400.
Step S505: the lock control unit 500 of the air conditioning device 100 adds the status change flag to the communication protocol message according to the authentication key.
Step S506: the lock control unit 500 calls the operation data of the air-conditioning apparatus 100 from the operation control unit 400 and outputs the air-conditioning apparatus operation data to the operation terminal 200. On the other hand, the remote server 300 that receives the unlock instruction also calls the operation data of the air-conditioning apparatus 100 from the operation control unit 400.
Step S507: the lock control unit 500 receives the first intervention frequency calculated by the operation terminal 200 and generates a first operation instruction including the first intervention frequency and outputs to the operation control unit 400.
Step S508: the operation control unit 400 receives the second intervention frequency calculated by the remote server 300 and generates a second operation instruction including the second intervention frequency.
Step S509: the lock control unit 500 receives an iterative key generated based on the initial key calculation input from the operation terminal 200.
Step S510: the lock control unit 500 determines whether the authentication key is the same as the iteration key.
Step S511: if the verification key is not the same as the iteration key, unlocking fails.
Step S512: if the verification key is the same as the iteration key, the outdoor unit 101 is controlled to enter the unlocked state by the operation control unit 400 to allow the outdoor unit 101 to respond to the operation instruction output from the operation terminal 200 or the remote server 300, and the compressor is operated at the first intervention frequency or the second intervention frequency.
In some embodiments of the present application, the lock control unit 500 performs a plurality of steps as shown in fig. 9 when generating the authentication key from the initial key.
Step S601: the first storage unit and the second storage unit, which are configured to be identical, store a first data portion and a second data portion of the input initial key, respectively. Illustratively, two 16-bit registers initValue and xorValue are preset, the first data portion of the initial key is 0x6b29, and the second data portion is 0xa001; i.e. initValue =0x6b29; xorValue =0xa001.
Step S602: and taking the first data part and the set data information to carry out bitwise calculation.
Step S603: and judging whether the bitwise and the calculated result is 1 or not.
Step S604: if the result of the bitwise AND calculation is 1, the first data part is circularly shifted by one bit and is subjected to XOR calculation with the second data part, namely the register initValue is circularly shifted by 1 bit to the right, and then is subjected to XOR calculation with the xorValue.
Step S605: if the result of the bitwise and calculation is not 1 (i.e., is 0), the first data portion is shifted one bit after the loop. I.e. only performing an operation that shifts register initValue by 1 bit to the right.
Step S606: and logically and-calculating a target byte and the calculation times in the frame of communication protocol text calculated by the locking control unit 500, wherein the ordinal number of the target byte is equal to the calculation times. Namely, the Nth byte and the Nth calculation time N in the communication protocol message are logically AND-calculated.
Step S607: and judging whether the logic and calculation result is 0.
Step S608: if the logical AND computation results in 0, no action is performed.
Step S609: and if the logical AND calculation result is not 0, performing exclusive OR calculation on the first data part and the second data part, namely performing exclusive OR operation on the initValue and the xorValue once.
Step S610: the calculation result is saved in the first storage unit to complete the calculation of one byte.
Step S611: and the above processes are circulated until all the bytes in one frame of communication protocol message are calculated.
Step S612: the state value in the first storage unit is output as the verification key, for example, the lower 4 bits of initValue are taken as the verification key.
The communication protocol text is defined as checkArray, the data length is arrayLen, and the checkArray may be the first frame of communication protocol text calculated by the lock control unit 500, and output to the operation control unit 400, and further pass through to the remote server 300.
In some optional embodiments of the present application, the authentication key may also be generated by using other common encryption algorithms, for example, generating a random number, etc., and the generation of the authentication key by using other common encryption algorithms is not a protection focus of the present invention, and is not described repeatedly here.
In some optional embodiments of the present application, the algorithm when the operation terminal 200 generates the iterative key according to the initial key calculation is the same as that when the lock control unit 500 generates the verification key.
In some optional embodiments of the present application, the operation terminal 200 performs the following steps when generating the iterative key according to the initial key calculation:
the same first terminal storage unit and second terminal storage unit are configured to store a first data portion and a second data portion of the initial key, respectively. Illustratively, two 16-bit registers initValue and xorValue are preset, the first data portion of the initial key is 0x6b29, and the second data portion is 0xa001; i.e. initValue =0x6b29; xorValue =0xa001.
Taking the first data part and the set data information to carry out bitwise AND calculation, when the result of the bitwise AND calculation is 1, shifting the first data part by one bit after circulating and carrying out XOR calculation with the second data part, namely executing the XOR calculation with the xorValue after shifting the register initValue by 1 bit to the right in a circulating way; when the result of the bitwise and calculation is 0, the first data portion is circularly shifted backward by one bit, that is, only the operation of circularly shifting the register initValue by 1 bit to the right is performed.
Performing logic and calculation on a target byte and the calculation times in one frame of communication protocol text of the operation terminal 200, wherein the ordinal number of the target byte is equal to the calculation times, that is, performing logic and calculation on the Nth byte and the Nth calculation times N in the communication protocol text; and when the logical AND calculation result is zero, no action is executed, or when the logical AND calculation result is not 0, the first data part and the second data part are taken to carry out XOR calculation, namely the initValue and the xorValue are subjected to XOR operation once, and the calculation result is stored in the first terminal storage unit to finish the calculation of one byte.
And the above processes are circulated until all the bytes in one frame of communication protocol message are calculated.
And outputting the state value in the first terminal storage unit as an iteration key.
In some alternative embodiments of the present application, the lock control unit 500 may employ a hardware architecture as shown in fig. 10. In addition to the NFC processing chip 501 (a commercially available NFC controller chip is selected), the lock control unit 500 further includes an extended nonvolatile memory unit (Flash), an extended read only memory unit 503 (extended EEPROM), an internal static random access memory unit 502 (SRAM), a read only memory unit 503 (EEPROM), and an LED display unit. The NFC processing chip 501 is powered by 5V. The extended nonvolatile memory unit and the extended read only memory unit 503 in the lock control unit 500 may reserve only ports, and match and set the extended Flash and the extended EEPROM when necessary. When the locking control unit 500 is disposed in the outdoor unit 101, the NFC processing chip 501 and the operation control unit 400 communicate through UART, and meanwhile, the NFC processing chip 501 supports a power-down excitation function and uses a diode to isolate two 5V power supplies, and the diode is used to isolate the power supplies, so that when the NFC processing chip 501 is in a power-down state, the operation terminal 200 can excite the NFC processing chip 501, but does not excite a processor serving as the operation control unit 400, and thus normal operation of the NFC processing chip is maintained.
In some optional embodiments of the present application, the NFC processing chip 501 may implement bidirectional reading and writing of data with the operation terminal 200 and the operation control unit 400. In order to reduce the number of times of writing in the read-only memory unit 503, the service life of the lock control unit 500 is prolonged, and the read-write speed of the system is increased. In the near field communication activation state, the locking control unit 500 is configured to read the data format code written in the internal static random access memory unit 502, and write the unit real-time operation data obtained from the operation control unit 400 into the internal static random access memory unit 502 when the data format code is a first set format code (for example, format code 0x 01) to allow the operation terminal 200 to read and display; or allowing the operation terminal 200 to read and display the stored data in the internal read-only memory unit 503 when the data format code is a second set format code (for example, format code 0x 02); or when the data format code is a third set format code (for example, format code 0x 03), the operation terminal 200 is allowed to write the configuration data into the internal sram 502 and store the configuration data in the internal rom 503.
Specifically, referring to fig. 11 and 12, the operation terminal 200 and the lock control unit 500 are configured to execute a plurality of steps as shown in the figure to realize bidirectional reading and writing.
The bidirectional near field communication is activated (as shown in step S701 in fig. 11), and the operation terminal 200 writes a data format code to the internal static random access memory unit 502 (as shown in step S702 in fig. 11).
When the data format code is the first setting format code (as shown in step S703 in fig. 11), the operation terminal 200 reads the real-time operation data in the static random access memory 502 inside the lock control unit 500 (as shown in step S704 in fig. 11, for example, the real-time operation data of the air conditioning device 100), and the operation terminal 200 can display the real-time operation data through the application interface (as shown in step S705 in fig. 11). Correspondingly, on the side of the lock control unit 500, near field communication is activated (as shown in step S706 in fig. 11), and the lock control unit 500 reads the data format code written in the internal static random access memory unit 502 (as shown in step S707 in fig. 11). When the data format code is the first setting format code (as shown in step S708 in fig. 11), the real-time operation data obtained from the operation control unit 400 is written into the internal static random access memory unit 502 (as shown in step S709 in fig. 11, for example, the real-time operation data of the air conditioning device 100) so that the operation terminal 200 can call it.
When the data format code is the second setting format code (as shown in step S803 in fig. 11), the operation terminal 200 reads the stored data in the read-only storage unit 503 inside the lock control unit 500 (as shown in step S804 in fig. 11), and the operation terminal 200 can display the data through the application interface (as shown in step S805 in fig. 11). Correspondingly, on the side of the lock control unit 500, when the data format code is the second setting format code (as shown in step S806 in fig. 11), the lock control unit 500 allows the control terminal to call the stored data in the internal read-only memory unit 503 (as shown in step S807 in fig. 11). The stored data may be function data, dial data, alarm history data, and the like of the air-conditioning apparatus 100. In an alternative embodiment, the lock control unit 500 also stores the calculated authentication password in the internal read-only memory unit 503, and the authentication password may be stored if the power is unexpectedly interrupted.
When the data format code is the third setting format code (as shown in step 903 in fig. 11), the operation terminal 200 enters the application interface configuration state (as shown in step S904 in fig. 11), and the operation terminal 200 writes configuration data into the internal sram cell 502 of the lock control unit 500 through the application interface (as shown in step S905 in fig. 11). Correspondingly, on the side of the lock control unit 500, when the data format code is the third setting format code (as shown in step S906 in fig. 11), the lock control unit 500 reads the configuration data written in the internal sram cell 502 (as shown in step S907 in fig. 11), and writes the configuration data in the internal rom cell 503. The configuration data may be updated dialing data, updated functionality data, or the like.
As shown in fig. 12, the operation control unit 400 may also write modification data, which may be data such as an alarm history, into the internal read-only storage unit 503 of the lock control unit 500.
Exemplary embodiment 2
The second embodiment of the present invention provides an operation terminal 200 applied to an air conditioning device 100.
The operation terminal 200 may be a portable mobile terminal such as a PC (personal computer), a smart phone, a tablet computer, a PDA (personal digital assistant), a wearable device, or the like. In the present application, the operation terminal 200 may include not only the terminal itself but also a repeater or a peripheral device, or an environment including an expansion board mounted on a computer, or a virtual machine, and the operation terminal 200 is not limited to these examples. An NFC (Near Field Communication) controller chip is integrated in the operation terminal 200, and the NFC controller chip combines an NFC reader and an NFC tag together and is embedded in the operation terminal 200.
The operation terminal 200 can implement bidirectional near field communication with the lock control unit 500 provided in the outdoor unit 101 of the air conditioning device 100. The operation terminal 200 is configured to output a lock instruction or an unlock control instruction including an initial key to the lock control unit 500. The operation terminal 200 calculates an iterative key based on the initial key after outputting a lock instruction or an unlock control instruction to the lock control unit 500 and outputs it to the lock control unit 500. After the operation terminal 200 compares the iteration key with the verification key generated by the lock control unit 500 based on the initial key calculation, the operation instruction that prohibits the outdoor unit 101 from responding to the output of the operation terminal 200 is configured by the lock control unit 500 based on the comparison result and the unlock instruction, or the operation instruction that allows the outdoor unit 101 to respond to the operation terminal 200 is configured by the lock control unit 500 based on the comparison result and the unlock instruction.
In some optional embodiments of the present application, the operation terminal 200 recognizes that the outdoor unit 101 of the air conditioning device 100 is in the locked state or the unlocked state by the communication protocol message including the locked state flag or the unlocked state flag outputted from the lock control unit 500; and recognizes the lock state change or unlock state change of the outdoor unit 101 of the air-conditioning apparatus 100 by the communication protocol message added with the state change flag outputted from the lock control unit 500.
The same structure and function as those of embodiment 1 will be omitted as appropriate.
Exemplary embodiment 3
A third embodiment of the present invention provides a wireless communication system including: an air conditioning apparatus 100 including an outdoor unit 101, the outdoor unit 101 having an operation control unit 400 and a lock control unit 500 provided therein;
a remote server 300, the remote server 300 being bidirectionally communicable with the operation control unit 400;
the operation terminal 200, the operation terminal 200 can realize bidirectional near field communication with the locking control unit 500;
the wireless communication system is configured to: the operation terminal 200 outputs a locking instruction or an unlocking control instruction including an initial key to the locking control unit 500, and after receiving the locking instruction or the unlocking control instruction, the locking control unit 500 generates and stores a verification key according to the initial key calculation and outputs the locking instruction or the unlocking instruction to the remote server 300 through the operation control unit 400; the operation terminal 200 outputs an iterative key generated based on the initial key calculation to the lock control unit 500, and the lock control unit 500 controls the outdoor unit 101 to enter a lock state to prohibit the outdoor unit 101 from responding to an operation instruction output from the operation terminal 200 or the remote server 300 based on the lock instruction and a comparison result of the authentication key and the iterative key after receiving the iterative key, or controls the outdoor unit 101 to enter an unlock state to allow the outdoor unit 101 to respond to an operation instruction output from the operation terminal 200 or the remote server 300 based on the unlock instruction and a comparison result of the authentication key and the iterative key.
The same configurations and functions as those in embodiments 1 and 2 will be omitted as appropriate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. An air conditioning device comprising:
an outdoor unit in which an operation control unit is provided, the operation control unit being bidirectionally communicable with a remote server;
it is characterized by also comprising:
a lock control unit that can realize bidirectional near field communication with the operation terminal; after receiving a locking instruction or an unlocking instruction which comprises an initial key and is input by an operation terminal, calculating and generating a verification key according to the initial key, storing the verification key and outputting the locking instruction or the unlocking instruction to the remote server through the operation control unit; and after receiving an iterative key which is input by an operation terminal and is generated based on the initial key calculation, controlling the outdoor unit to enter a locking state based on the locking instruction and a comparison result of the verification key and the iterative key so as to prohibit the outdoor unit from responding to the operation instruction output by the operation terminal or a remote server, or controlling the outdoor unit to enter an unlocking state based on the unlocking instruction and the comparison result of the verification key and the iterative key so as to allow the outdoor unit to respond to the operation instruction output by the operation terminal or the remote server.
2. The air conditioning device according to claim 1, characterized in that:
the locking control unit is configured to output a communication protocol message including a locking state flag or an unlocking state flag to the operation terminal so that the operation terminal recognizes that the outdoor unit is in a locking state or an unlocking state based on the communication protocol message; and after calculating and generating a verification key according to the initial key, adding a state change identifier into a communication protocol message so that the operation terminal identifies the locking state change of the outdoor unit or releases the locking state change based on the communication protocol message added with the state change identifier.
3. The air conditioning device according to claim 1 or 2, characterized in that:
the locking control unit executes the following steps when generating the verification key according to the initial key calculation:
configuring a first storage unit and a second storage unit which are the same to store a first data part and a second data part of the input initial key respectively;
taking the first data part and the set data information to carry out bitwise AND calculation, and when the result of the bitwise AND calculation is 1, shifting the first data part by one bit after circulating and carrying out XOR calculation with the second data part; when the bit-wise AND calculation result is 0, circularly shifting the first data part by one bit;
performing logic and calculation on a target byte and calculation times in a frame of communication protocol text calculated by a locking control unit, wherein the ordinal number of the target byte is equal to the calculation times; when the logical AND calculation result is zero, no action is executed, or when the logical AND calculation result is not 0, the first data part and the second data part are taken to carry out XOR calculation, and the calculation result is stored in the first storage unit to finish the calculation of one byte;
the above processes are circulated until all bytes in a frame of communication protocol message are calculated;
and outputting the state value in the first storage unit as a verification key.
4. The air conditioning device according to claim 3, characterized in that:
if the total number of bytes of a frame of communication protocol message output to the operation terminal by the locking control unit is an odd number, the communication protocol message contains a locking state mark; if the total number of bytes of one frame of communication protocol message output to the operation terminal by the locking control unit is even, the communication protocol message contains an unlocking state mark.
5. The air conditioning device according to claim 4, characterized in that:
the locking control unit is configured to add the last two bytes of the verification key in a communication protocol message as a state change identifier after generating the verification key according to the initial key calculation so that the operation terminal identifies the outdoor unit and a locked state or an unlocked state based on the communication protocol message added with the state change identification.
6. The air conditioning device according to any one of claims 1 to 5, characterized in that:
in the near field communication activation state, the locking control unit is configured to read a data format code written in the internal static random access memory unit, and write the unit real-time operation data obtained by the self-operation control unit into the internal static random access memory unit for the operation terminal to read and display when the data format code is a first set format code; or when the data format code is a second set format code, allowing the operation terminal to read and display the stored data in the internal read-only memory unit; or when the data format code is a third set format code, allowing the operation terminal to write configuration data into the internal static random access memory unit and store the configuration data in the internal read-only memory unit.
7. An operation terminal for operating the air conditioning device according to any one of claims 1 to 6, characterized in that:
the operation terminal can realize bidirectional near field communication with a locking control unit arranged in an outdoor unit of the air conditioning device; the operation terminal is configured to output a lock instruction or an unlock control instruction including an initial key to the lock control unit; after a locking instruction or a locking releasing control instruction is output to the locking control unit, an iterative key is calculated based on the initial key and is output to the locking control unit; after the iterative key and the verification key are compared by the locking control unit, the operation terminal prohibits the outdoor unit from responding to the operation instruction of the operation terminal by the locking control unit based on the comparison result and the locking instruction configuration, or permits the outdoor unit to respond to the operation instruction of the operation terminal by the locking control unit based on the comparison result and the unlocking instruction configuration; wherein the authentication key is generated by the lock control unit based on the initial key calculation.
8. The operation terminal according to claim 7, characterized in that:
the operation terminal identifies that the outdoor unit of the air conditioning device is in a locking state or an unlocking state through a communication protocol message which is output from the locking control unit and contains a locking state mark or an unlocking state mark; and the locking state change or unlocking state change of the outdoor unit of the air conditioning device is identified through the communication protocol message which is output by the locking control unit and is added with the state change identifier.
9. The operation terminal according to claim 8, characterized in that:
the operation terminal executes the following steps when calculating and generating an iterative key according to the initial key:
configuring a first terminal storage unit and a second terminal storage unit which are the same to respectively store a first data part and a second data part of the initial key;
taking the first data part and the set data information to carry out bitwise AND calculation, and when the result of the bitwise AND calculation is 1, shifting the first data part by one bit after circulating and carrying out XOR calculation with the second data part; when the calculation result of bitwise AND is 0, circularly shifting the first data part by one bit;
carrying out logic and calculation on a target byte and the calculation times in a frame of communication protocol text of an operation terminal, wherein the ordinal number of the target byte is equal to the calculation times; when the logic and calculation result is zero, no action is executed, or when the logic and calculation result is not 0, the first data part and the second data part are taken to carry out exclusive OR calculation, and the calculation result is stored in the first terminal storage unit to finish the calculation of one byte;
the above processes are circulated until all bytes in a frame of communication protocol message are calculated;
and outputting the state value in the first terminal storage unit as an iteration key.
10. A wireless communication system, comprising:
an air conditioning device including an outdoor unit in which an operation control unit and a locking control unit are provided;
a remote server in bidirectional communication with the operation control unit;
the operation terminal can realize bidirectional near field communication with the locking control unit;
the wireless communication system is configured to: the operation terminal outputs a locking instruction or a unlocking control instruction comprising an initial key to the locking control unit, and after receiving the locking instruction or the unlocking control instruction, the locking control unit generates and stores a verification key according to the initial key calculation and outputs the locking instruction or the unlocking instruction to the remote server through the operation control unit; the operation terminal outputs an iteration key generated based on the initial key calculation to the locking control unit, and after receiving the iteration key, the locking control unit controls the outdoor unit to enter a locking state based on the locking instruction and a comparison result of the verification key and the iteration key so as to prohibit the outdoor unit from responding to an operation instruction output by the operation terminal or a remote server, or controls the outdoor unit to enter an unlocking state based on the unlocking instruction and a comparison result of the verification key and the iteration key so as to allow the outdoor unit to respond to an operation instruction output by the operation terminal or the remote server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259267.3A CN115682393A (en) | 2022-10-14 | 2022-10-14 | Air conditioner, operation terminal, and wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211259267.3A CN115682393A (en) | 2022-10-14 | 2022-10-14 | Air conditioner, operation terminal, and wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115682393A true CN115682393A (en) | 2023-02-03 |
Family
ID=85066896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211259267.3A Pending CN115682393A (en) | 2022-10-14 | 2022-10-14 | Air conditioner, operation terminal, and wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115682393A (en) |
-
2022
- 2022-10-14 CN CN202211259267.3A patent/CN115682393A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108369019B (en) | Air conditioner | |
| CN110057033B (en) | Air conditioning system and computer readable storage medium | |
| JP6459728B2 (en) | Remote control device for air conditioner and air conditioner equipped with the same | |
| US20100292864A1 (en) | Air conditioner and method of controlling the same | |
| US20100076605A1 (en) | HVAC System Controller Configuration | |
| US20100125368A1 (en) | System and Method for Sump Heater Control in an HVAC System | |
| JP5335043B2 (en) | Equipment control device and equipment system | |
| US20200018510A1 (en) | Air-conditioning apparatus | |
| JP2011002202A (en) | Remote controller of air conditioner, air conditioning system, and building management system | |
| EP2056032B1 (en) | Air conditioner and operating method thereof | |
| JP4970856B2 (en) | Information transmission system | |
| KR102206461B1 (en) | Air-conditioning system and method | |
| CN115682393A (en) | Air conditioner, operation terminal, and wireless communication system | |
| JP2006283999A (en) | Remote control device for air conditioner, air conditioner and air conditioning system | |
| EP3961994B1 (en) | Provisioning and servicing mesh networks | |
| JP2015124901A (en) | Air conditioning system | |
| JP2018044735A (en) | Air conditioner or refrigeration device | |
| JP2014086744A (en) | Facility management system and operation terminal | |
| KR102206458B1 (en) | Air Conditioner AND Controlling Method | |
| JP6777174B2 (en) | Server equipment, adapters and air conditioning systems | |
| JP2010048451A (en) | Electric power information reporting system and electric power information reporting device | |
| JP2015014406A (en) | Operation restriction method in air conditioning control system and system | |
| JP6420908B2 (en) | Outdoor unit setting system, outdoor unit setting method, and outdoor unit | |
| JP7406060B2 (en) | refrigeration system | |
| KR20080022959A (en) | Automatic response service system of air conditioner and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |