CN113068163B - Bluetooth networking method and system thereof - Google Patents
Bluetooth networking method and system thereof Download PDFInfo
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- CN113068163B CN113068163B CN202110195035.5A CN202110195035A CN113068163B CN 113068163 B CN113068163 B CN 113068163B CN 202110195035 A CN202110195035 A CN 202110195035A CN 113068163 B CN113068163 B CN 113068163B
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- 230000006855 networking Effects 0.000 title claims abstract description 193
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000012790 confirmation Methods 0.000 claims abstract description 32
- 238000012795 verification Methods 0.000 claims abstract description 15
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a Bluetooth networking method and a system thereof, wherein the method comprises the following steps: the main control unit broadcasts and sends a networking request; the access unit calculates according to the received networking request and a first key preset locally so as to obtain first plaintext data of the networking request; the access unit sends a networking confirmation message to the main control unit according to the first plaintext data; the main control unit calculates according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message; the main control unit verifies the second plaintext data, and if the verification is passed, the access unit is allowed to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network.
Description
Technical Field
The invention relates to the technical field of electric bed control, in particular to a Bluetooth networking method and a Bluetooth networking system.
Background
Fig. 1 is a schematic view of the bottom structure of a prior art electric bed, as shown in fig. 1, the electric bed includes: a main control box 40, a drive motor 41, a WiFi box 42, a massage device 43, etc. The main control box 40 is connected to the driving motor 41, the WiFi box 42, and the massage device 43 through communication lines 90, respectively, to perform control. Because of the different customer requirements, other modular units may be added, each of which needs to be connected to the main control box 40, thereby resulting in complicated and messy electric appliance arrangement and circuit arrangement at the bottom of the electric bed. As customers require more appliances to be equipped with the electric bed, the existing wiring method has been difficult to meet the actual requirements.
Disclosure of Invention
The invention aims to provide a Bluetooth networking method and a Bluetooth networking system, which are used for solving the problem that the traditional electric bed wire arrangement mode is too complex.
The Bluetooth networking method provided by the invention comprises the following steps:
the main control unit broadcasts and sends a networking request;
the access unit calculates according to the received networking request and a first key preset locally so as to obtain first plaintext data of the networking request;
the access unit sends a networking confirmation message to the main control unit according to the first plaintext data;
the main control unit calculates according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message;
the main control unit verifies the second plaintext data, and if the verification is passed, the access unit is allowed to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network.
Further, the bluetooth networking method of the present invention, after allowing the access unit to access to a bluetooth network controlled by the main control unit, further includes:
the main control unit distributes network identity identification to the access unit;
The access unit sends the equipment identification and the type information of the access unit to the main control unit;
the main control unit stores the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit.
Further, the bluetooth networking method of the present invention further includes:
the access unit establishes connection with the main control unit according to the network identity;
the main control unit sends a control request to the access unit according to the network identity of the access unit so as to enable the access unit to execute the control request;
the main control unit sends a state acquisition request to the access unit according to the network identity of the access unit so as to acquire a state data packet fed back by the access unit, and the main control unit analyzes the state data packet according to the type information of the access unit.
Further, the bluetooth networking method of the present invention further includes:
the main control unit broadcasts and sends a control request; the control request carries the network identity of the access unit;
the access unit performs identity matching according to the network identity carried by the control request, if the matching is successful, the control request is executed, and if the matching is failed, the control request is not executed.
Further, the bluetooth networking method of the present invention further includes:
the main control unit broadcasts a sending state acquisition request; the state acquisition request carries a network identity of the access unit;
the access unit performs identity matching according to the network identity carried by the state acquisition request, if the matching is successful, the access unit feeds back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, the state acquisition request is not executed;
and the main control unit analyzes the state data packet according to the type information of the access unit.
Further, in the bluetooth networking method of the present invention, the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
The Bluetooth networking system provided by the invention comprises: a main control unit and an access unit;
the main control unit includes: a first networking module;
the first networking module is used for: broadcasting and sending a networking request; calculating according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message; verifying the second plaintext data, and if the verification is passed, allowing the access unit to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
The access unit comprises: a second networking module;
the second networking module is used for: calculating according to the received networking request and a first locally preset secret key to obtain first plaintext data of the networking request; and sending a networking confirmation message to the main control unit according to the first plaintext data.
Further, in the bluetooth networking system of the present invention, the main control unit further includes: a management module;
the management module is used for:
distributing network identity identification to the access unit;
receiving equipment identification and type information of the access unit, which are sent by the access unit;
and storing the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit.
Further, the Bluetooth networking system of the invention,
the access unit further comprises: the connecting module and the executing module;
the connection module is used for: establishing connection with the main control unit according to the network identity;
the execution module is used for: executing a control request sent by the main control unit; acquiring a request feedback state data packet according to the state sent by the main control unit;
The main control unit further includes: a control module and a data acquisition module;
the control module is used for: sending a control request to the access unit according to the network identity of the access unit;
the data acquisition module is used for: sending a state acquisition request to the access unit according to the network identity of the access unit; and analyzing the state data packet fed back by the access unit according to the type information of the access unit.
Further, the Bluetooth networking system of the invention,
the main control unit further includes: a broadcasting module;
the broadcasting module is used for: broadcasting a transmission control request; the control request carries the network identity of the access unit;
the access unit further comprises: an execution module;
the execution module is used for: and carrying out identity matching according to the network identity carried by the control request, if the matching is successful, executing the control request, and if the matching is failed, not executing the control request.
Further, in the bluetooth networking system of the present invention, the main control unit further includes: a broadcasting module and a data acquisition module;
the broadcasting module is used for: broadcasting a transmission state acquisition request; the state acquisition request carries a network identity of the access unit;
The data acquisition module is used for: analyzing the state data packet according to the type information of the access unit;
the access unit comprises: a data acquisition module;
the data acquisition module is used for: and carrying out identity matching according to the network identity carried by the state acquisition request, if the matching is successful, feeding back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, not executing the state acquisition request.
Further, in the bluetooth networking system of the present invention, the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
According to the Bluetooth networking method and the Bluetooth networking system, the Bluetooth receiving and transmitting units are arranged for the access units such as the massage equipment and the aromatherapy equipment which are required to be accessed to the main control box, so that the access units are accessed to the main control box in a Bluetooth mode, all the electrical equipment is not required to be connected to the main control box through an external communication line, and the number of electrical equipment wiring is greatly reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic view of the bottom structure of a prior art electric bed;
FIG. 2 is a schematic view of the structure of an electric bed according to an embodiment of the present invention;
fig. 3 is a flow chart of a bluetooth networking method according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of an encryption algorithm according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another encryption algorithm according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a bluetooth networking initialization flow according to a first embodiment of the present invention;
FIG. 7 is a schematic diagram of a functional module control and status acquisition process according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a control and status acquisition flow of a functional module according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a bluetooth networking system according to a second embodiment of the present invention;
fig. 10 is a schematic structural diagram of a bluetooth networking system according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a bluetooth networking system according to another embodiment of the present invention.
The same or similar reference numbers in the drawings refer to the same or similar parts.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Fig. 2 is a schematic structural diagram of an electric bed according to an embodiment of the present invention, and as shown in fig. 2, the electric bed according to an embodiment of the present invention includes: a drive motor 41 and a bed plate 99.
The driving motor 41 drives the bed board 99 to turn over so that the electric bed body forms a specific shape and provides a better sleeping posture for the human body.
The Bluetooth networking method and the Bluetooth networking system provided by the embodiment of the invention can be used for the electric bed shown in fig. 2, and the electric bed further comprises: a main control box and an access unit.
Specifically, the main control box is used for the overall control of the electric bed, and the main control unit is arranged in the main control box. The access unit receives and executes the control instruction sent by the main control unit.
The access unit comprises: the Bluetooth communication/control unit is corresponding to the driving motor, the massage module, the aromatherapy module, the physiological monitoring module, the environment monitoring module, the lighting equipment and other functional modules. Each functional module is correspondingly provided with an access unit.
The massage module can comprise a physical vibrator and the like, and is started and controlled in strength according to the instruction of the main control unit to massage the human body on the bed body.
The aromatherapy module can heat the incense body by adopting the heater to enable the incense body to emit fragrance, and the aromatherapy module is controlled by the main control unit.
The physiological monitoring module mainly adopts a pressure sensor, a body temperature monitor, a blood oxygen monitor and the like and is used for monitoring the physiological condition of a human body on the bed body according to the control of the main control unit to acquire physiological data.
The environment monitoring module is mainly used for monitoring the surrounding environment of the bed body according to the control of the main control unit and acquiring environment data, and further can control the lighting equipment to adjust the environment light according to the environment data.
And the lighting control equipment is used for controlling the brightness, the switch, the color change and the like of the lamplight according to the control of the main control unit.
In addition, the electric bed control device provided by the embodiment of the invention can be also used for other bed bodies except an electric bed, namely, the bed body which does not need to be folded and deformed by adopting a driving motor. These beds do not include a drive motor.
Fig. 3 is a schematic flow chart of a bluetooth networking method according to an embodiment of the present invention, and as shown in fig. 3, the bluetooth networking method according to an embodiment of the present invention includes:
in step S101, the main control unit broadcasts a request for transmitting a networking.
Specifically, when each functional module of the electric bed needs to be connected to the electric bed Bluetooth network, a networking mode is requested to be started from a main control unit of the electric bed main control box through a remote controller or an intelligent terminal such as a mobile phone and a tablet, and after the networking mode is started, the main control unit sends a networking request through Bluetooth broadcasting. The networking request is obtained by calculating an encryption algorithm according to an encryption algorithm and a second key which are preset locally by the main control unit.
Step S102, the access unit calculates according to the received networking request and a first key preset locally to obtain first plaintext data of the networking request.
Specifically, after each functional module of the electric bed receives a networking request of the main control unit through the access unit, the first plaintext data of the networking request is obtained by decrypting and calculating through an encryption algorithm and a first key which are locally preset by the access unit. Wherein the first key of the access unit matches the second key of the master control unit. The access unit is matched with the encryption algorithm of the main control unit.
Step S103, the access unit sends a networking confirmation message to the main control unit according to the first plaintext data.
Specifically, after obtaining first plaintext data of a networking request, the access unit generates a networking acknowledgement message according to the networking request, encrypts the networking acknowledgement message according to a first key and an encryption algorithm locally preset by the access unit, and sends the encrypted networking acknowledgement message to the main control unit.
Step S104, the main control unit calculates according to the received networking confirmation message and a locally preset second key to obtain second plaintext data of the networking confirmation message.
Specifically, after receiving the encrypted networking acknowledgement message, the main control unit decrypts according to a second key and an encryption algorithm preset locally by the main control unit to obtain second plaintext data of the networking acknowledgement message.
Step S105, the main control unit verifies the second plaintext data, and if the verification is passed, the access unit is allowed to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network.
Specifically, after obtaining the second plaintext data of the networking acknowledgement message, the main control unit verifies the networking acknowledgement message according to the networking request sent before, and if the verification is passed, the access unit is a correct access unit, and the access unit is allowed to join the bluetooth network. The Bluetooth network is controlled by the main control unit and is the Bluetooth Internet of things of the electric bed equipment. If the verification is not passed, the access unit is not the electric bed equipment, and is not allowed to be accessed to the Bluetooth Internet of things of the electric bed equipment.
In the bluetooth networking method of the first embodiment of the present invention, an encryption algorithm and a key that are matched with each other are preset in the access unit and the electric bed main control unit of each functional module of each electric bed device. The networking request and the networking confirmation message are required to be sent in an encrypted manner, so that only a functional module which is preset with an encryption algorithm and a secret key matched with the main control unit can acquire the plaintext of the networking request and send the networking confirmation message, and other equipment which is not an electric bed, such as a Bluetooth headset, a Bluetooth sound box, a Bluetooth mouse and the like matched with other non-electric beds, cannot acquire the plaintext of the networking request because the encryption algorithm and the secret key matched with the main control unit are not preset locally, cannot send the correct networking confirmation message and cannot join the electric bed Bluetooth network. And because the networking request and the networking confirmation message are encrypted, the system safety of the electric bed Bluetooth network is also ensured.
Further, in the bluetooth networking method according to the embodiment of the present invention, the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
Specifically, the encryption algorithm of the main control unit and the access unit adopts a symmetric encryption algorithm, and the second key of the main control unit is identical to the first key of the access unit. The first key is preset in the access unit, the second key is preset in the main control unit, the first key and the second key are factory-set, and are not directly transmitted on the network, so that key leakage is avoided. When the first key and the second key are required to be transmitted on the Internet, the first key and the second key are encrypted by an asymmetric encryption algorithm and then transmitted through the network, so that malicious attackers are prevented from acquiring the keys, restoring ciphertext, stealing important data of the main control unit and the access unit and carrying out malicious operation on the electric bed functional module. When the main control unit sends the networking request, the plaintext of the networking request is encrypted and calculated through the second secret key. When the access unit receives the networking request, the networking request is decrypted through the first secret key, so that a plaintext of the networking request is obtained. The access unit generates a networking confirmation message according to the plaintext of the networking request, performs encryption calculation on the plaintext of the networking confirmation message according to the first secret key, and returns the encrypted networking confirmation message to the main control unit. And the main control unit carries out decryption calculation on the networking acknowledgement message according to the second key to obtain a plaintext of the networking acknowledgement message. The main control unit verifies the networking confirmation message based on the networking request, and can correctly send the networking confirmation message only if the access unit with the first key identical to the second key is preset to decrypt the networking request, so that only the access unit with the first key identical to the second key can access the electric bed Bluetooth network. The main control unit can set an encrypted verification rule in the networking request, and the access unit can reply correct verification information to the main control unit according to the verification rule only after acquiring a plaintext of the verification rule, so that only a functional module of the electric bed can be accessed to the electric bed Bluetooth network.
Because the networking request comprises the MAC (Medium/Media Access Control) address of the main control unit and related network parameters, and the networking confirmation message comprises the MAC address of the access unit and related network parameters, in order to avoid that the data are acquired from outside, the networking request and the networking confirmation message are sent in an encrypted form, so that other non-intelligent bed equipment cannot acquire important communication data of the access unit and the main control unit, and the system safety of the whole electric bed Bluetooth network is ensured. Because electric bed operating device can influence the human body, if electric bed bluetooth network is invaded, can lead to the functional module on the electric bed to produce adverse effect to the human body because of malicious operation, can improve electric bed bluetooth network system security through above-mentioned characteristic, avoid maliciously invading.
Fig. 4 is a schematic diagram of an encryption algorithm according to an embodiment of the present invention, and as shown in fig. 4, in an alternative embodiment of the present invention, the encryption algorithm uses encryption functions. Let the encryption function be E
C＝E(K,P)
Wherein P is plaintext, K is a secret key, and C is ciphertext. I.e. the plaintext P and the key K are input as parameters of the encryption function E, the encryption function E will output the ciphertext C.
When decryption is performed, the encryption function is set as D
P＝D(K,C)；
Wherein C is ciphertext, K is a key, and P is plaintext. I.e. the ciphertext C and the key K are input as parameters of the decryption function D, the decryption function D will output the plaintext P.
FIG. 5 is a schematic diagram of another encryption algorithm according to an embodiment of the present invention, as shown in FIG. 5, which in an alternative embodiment of the present invention uses a 56-bit key and an additional 8-bit parity bit to produce a maximum packet size of 64 bits. This is an iterative block cipher in which the plaintext block to be encrypted is divided into two halves. As shown in fig. 5, a round function is applied to one half using the subkey, then the output is exclusive ored with the other half, then the two halves of the plaintext block are swapped, the round operation is performed to the penultimate step, but the round of the last step is not swapped. By using 16 loops, four basic operations of exclusive OR, substitution and shift are used to obtain the encrypted ciphertext.
Further, in the bluetooth networking method according to the first embodiment of the present invention, after allowing the access unit to access to the bluetooth network controlled by the main control unit, the method further includes:
the main control unit distributes network identity identification to the access unit;
The access unit sends the equipment identification and the type information of the access unit to the main control unit;
the main control unit stores the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit.
Specifically, a data table is established in the main control unit, and the data table stores network identification, equipment identification, type information and corresponding relation of the access unit, so that the main control unit can conveniently control and manage the accessed functional modules.
When the main control unit needs to control the accessed functional module, the main control unit sends a control instruction according to the network identity of the access unit, and instructs the functional module of the access unit to execute the control instruction, for example, the main control module instructs the driving motor to operate according to a specific rotating speed or a specific stroke, instructs the massage module to start or control the intensity of the massage module, instructs the lighting control device to turn on or off the light, and the like. The control command needs to be determined according to the type of the access unit, for example, a motor driving command is sent according to the type of the driving motor, a massage intensity adjusting command is sent according to the type of the massage module, and the like.
For the access units such as the physiological monitoring module, the environment monitoring module and the like, when the main control unit monitors the human body, the physiological monitoring module is required to acquire physiological data of the human body, such as pressure signals, body temperature signals, blood oxygen signals and the like. When the main control unit monitors the surrounding environment, the environment monitoring module needs to acquire the environmental data around the electric bed, such as room temperature signals, light sensing signals, sound signals and the like. The human physiological data and the environmental data are different in data format, so that the type of the access unit needs to be clarified, after the feedback data packet of the access unit is acquired, the main control unit judges whether the access unit is a physiological monitoring module or an environmental detection module, analyzes the physiological data according to the data analysis module corresponding to the type of the physiological detection module, and analyzes the environmental data according to the data analysis module corresponding to the type of the environmental detection module.
Therefore, in the electric bed bluetooth network, the main control unit not only needs to determine the network identity and the equipment identity of the access unit to control or acquire data for a specific access unit, but also needs to determine the type of the access unit to determine whether the accessed functional module is a driving motor, an environment detection module or a physiological detection module, so as to send corresponding control instructions to different functional modules and acquire a data analysis module conforming to the type of the functional module to analyze the corresponding state data packet.
In an optional embodiment of the present invention, the bluetooth networking method according to the embodiment of the present invention further includes:
the access unit sends a function module identifier to the main control unit; wherein the function module identifier comprises a function module type field;
and the main control unit is matched with a function module database according to the function module type field so as to obtain the type information of the function module.
Specifically, the main control unit presets a function module database at the time of shipment, and the function module database stores the corresponding relation between the type field of the function module and the type information of the function module. The function module database can also be stored in the cloud server, and when the electric bed needs to use the database, the function module database is requested to query the cloud through the Internet. Each functional module of the electric bed is preset with a functional module identifier when leaving a factory, when the access unit is connected with the Bluetooth internet of things of the electric bed, the access unit obtains the functional module identifier from the corresponding functional module and sends the functional module identifier to the main control unit, and the functional module identifier comprises a functional module type field. After the main control unit analyzes the type field of the function module, the main control unit queries the function module database according to the type field of the function module, and obtains the type information matched with the type field of the function module, wherein the type information is the type information of the function module corresponding to the access unit. The function module database can update the corresponding relation between the type field and the type information of the function module so as to add a new function module in the function module database.
In the above flow of sending control command and obtaining status data, according to whether broadcasting is adopted, the method can be divided into two forms, wherein one form is to firstly establish network connection between an access module and a main control module and then control or obtain status data, and the other form is that network connection between the access module and the main control module is not required to be established, and the main control unit directly sends a control request or a status obtaining request. Both of these forms are described in detail below.
In an optional embodiment of the present invention, the bluetooth networking method according to the embodiment of the present invention further includes:
the access unit establishes connection with the main control unit according to the network identity;
the main control unit sends a control request to the access unit according to the network identity of the access unit so as to enable the access unit to execute the control request;
the main control unit sends a state acquisition request to the access unit according to the network identity of the access unit so as to acquire a state data packet fed back by the access unit, and the main control unit analyzes the state data packet according to the type information of the access unit.
Specifically, after the access unit accesses the electric bed bluetooth network, the main control unit acquires the network identity, the equipment identity, the type information and the corresponding relation of the access unit. The main control unit generates a connection request according to the network identity of the access unit, the connection request carries the network identity of the access unit, and after the access unit receives the access request, if the network identity of the access unit is matched with the network identity of the connection request, the access unit and the main control unit establish network connection according to the connection request. In the connection establishment process, the connection request sent by the main control unit and the connection confirmation message of the access unit are required to be subjected to encryption and decryption operation, and the encryption and decryption operation process is basically the same as that when the access unit is accessed to the electric bed Bluetooth network, and is not repeated here.
After the access unit is successfully connected with the main control unit, the main control unit can send a control instruction to the access unit according to the type of the access unit. For example, the motor is commanded to drive the bed board to rotate according to a specific rotation speed or angle, the aromatherapy module is commanded to heat the incense body according to a specific temperature, and the illumination control module is commanded to adjust the brightness, color and the like of the lamplight. The type information of the access unit can prevent the main control unit from sending error instructions, such as motor driving instructions to the lighting control module, and is convenient for a worker to acquire the running state data of each functional module.
After the access unit is successfully connected with the main control unit, the main control unit can also acquire a state data packet from the access unit according to the type of the access unit. For example, for an access unit such as a physiological monitoring module, an environmental monitoring module, etc., the data format of the human physiological data is different from that of the environmental data. Therefore, different data parsing modules are required to parse different status data packets respectively. After the feedback data packet of the access unit is obtained, the main control unit judges whether the access unit belongs to the physiological monitoring module or the environment detection module, and selects a correct data analysis module to analyze the original data according to different types of the functional modules.
Specifically, in the control process and the process of acquiring the state data, the control request and the control feedback information and the state acquisition request and the state data packet are also calculated by adopting the encryption and decryption process described in the present invention, and because the working principles are basically the same, the description is omitted here.
In another optional embodiment of the present invention, the bluetooth networking method according to the embodiment of the present invention further includes:
the main control unit broadcasts and sends a control request; the control request carries the network identity of the access unit;
The access unit performs identity matching according to the network identity carried by the control request, if the matching is successful, the control request is executed, and if the matching is failed, the control request is not executed.
In another optional embodiment of the present invention, the bluetooth networking method according to the embodiment of the present invention further includes:
the main control unit broadcasts a sending state acquisition request; the state acquisition request carries a network identity of the access unit;
the access unit performs identity matching according to the network identity carried by the state acquisition request, if the matching is successful, the access unit feeds back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, the state acquisition request is not executed;
and the main control unit analyzes the state data packet according to the type information of the access unit.
Specifically, after the access unit accesses the electric bed bluetooth network, the main control unit acquires the network identity, the equipment identity, the type information and the corresponding relation of the access unit. The main control unit does not need to establish a connection with the access unit in advance every time an instruction is sent or a status data packet is acquired. The master control unit may also broadcast a control request or a status acquisition request, where the control request or the status acquisition request carries the network identity of the access unit. After receiving the control request or the state acquisition request, the access unit responds to the control request or the state acquisition request if the network identity of the access unit is matched with the network identity of the control request or the state acquisition request.
Specifically, whether the bluetooth network connection between the main control unit and the access unit needs to be established or not needs to be judged according to the application scene. For the scene that needs to be continuously controlled or data acquired, the bluetooth network connection between the main control unit and the access unit needs to be established, for example, electric bed massage mode control, continuous monitoring of human physiological data and the like. For a scenario where control or data acquisition is not required to be performed continuously, the main control unit may directly broadcast a control instruction or a status acquisition request, for example, light switch adjustment, ambient light data acquisition, and the like.
Thus, in an alternative embodiment of the present invention, if the master control unit finds that the control request or the status acquisition request matches the first scenario, a network connection is established with the access unit before sending the control request or the status acquisition request. And if the main control unit finds that the control request or the state acquisition request is matched with the second scene, directly broadcasting and sending the control request or the state acquisition request. The first scene is a scene requiring continuous control or data acquisition, and the second scene is a scene not requiring continuous control or data acquisition.
Fig. 6 is a schematic diagram of a bluetooth networking initialization flow according to the first embodiment of the present invention, and as shown in fig. 6, the bluetooth networking method according to the first embodiment of the present invention specifically includes the following initialization flow:
Step A1, the main control unit encrypts and calculates a networking request through a locally preset second key;
a2, broadcasting and sending a networking request by the main control unit;
a3, the access unit carries out decryption calculation on the received networking request according to a first key preset locally so as to obtain first plaintext data of the networking request;
a4, the access unit generates a networking confirmation message according to the first plaintext data of the networking request, and encrypts the networking confirmation message according to a first key preset locally;
a5, the access unit sends a networking confirmation message to the main control unit;
a6, the main control unit decrypts the networking confirmation message according to a second key preset locally to obtain second plaintext data of the networking confirmation message;
step A7., the main control unit verifies the second plaintext data of the networking acknowledgement message, and if the verification is passed, the access unit is allowed to access the bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
step A8. the main control unit distributes network identity to the access unit;
step A9., an access unit sends the device identification and type information of the access unit to the main control unit;
And step A10, the main control unit stores the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit.
Specifically, after the steps A1 to a10 are completed, the bluetooth network of the electric bed is initialized, and a user can control the functional modules of each access unit through a remote controller or an intelligent terminal such as a mobile phone, a tablet and the like through a main control unit.
In the steps A1 to a10, the communication instruction between the main control unit and the access unit for the device identifier, the type information and the network identifier is also encrypted by an encryption algorithm and then sent, so as to ensure the system security of the bluetooth network.
Fig. 7 is a schematic diagram of a control and status acquisition flow of a functional module according to an embodiment of the present invention, as shown in fig. 7, after the initialization of the bluetooth network shown in fig. 6 is completed, when a user wants to control the functional module, for example, control the start of a massage function, mode switching, and adjustment of massage intensity, the following communication flow may be adopted:
b1, the access unit establishes connection with the main control unit according to the network identity;
b2, the main control unit sends a control request to the access unit according to the network identity of the access unit;
And step B3, the access unit executes the control request.
When a user wishes to acquire the acquired data or the operation parameters of the functional module, for example, acquired physiological data of a human body, environmental monitoring data, and operation parameter data of a motor, the following communication flow may be adopted:
b1, the access unit establishes connection with the main control unit according to the network identity;
step B4., the main control unit sends a state acquisition request to the access unit according to the network identity of the access unit;
step B5., the access unit feeds back the local state data of the access unit to the main control unit according to the state acquisition request;
step B6. the main control unit analyzes the status data packet according to the type information of the access unit to obtain access unit status data corresponding to the type of the access unit.
Fig. 8 is a schematic diagram of a control and status acquisition flow of a functional module according to another embodiment of the present invention, as shown in fig. 8, and another control and status acquisition manner is provided in the embodiment of the present invention, after the initialization of the bluetooth networking shown in fig. 6 of the present invention is completed, when a user wants to control the functional module, for example, control the start of a massage function, mode switching, and adjustment of massage intensity, the following communication flow may be adopted:
Step C1, the main control unit broadcasts and sends a control request; the control request carries the network identity of the access unit;
step C2., the access unit performs identity matching according to the network identity carried by the control request, if matching is successful, the control request is executed, and if matching is failed, the control request is not executed.
When a user wishes to acquire the acquired data or the operation parameters of the functional module, for example, acquired physiological data of a human body, environmental monitoring data, and operation parameter data of a motor, the following communication flow may be adopted:
step C3., the main control unit broadcasts a sending status acquisition request; the state acquisition request carries a network identity of the access unit;
step C4, the access unit performs identity matching according to the network identity carried by the state acquisition request, if the matching is successful, the state data packet is fed back to the main control unit according to the state acquisition request, and if the matching is failed, the state acquisition request is not executed;
step C5., the access unit feeds back a status data packet to the main control unit according to the status acquisition request;
step C6. the main control unit analyzes the status packet according to the type information of the access unit.
And in the steps B1 to B6 and C1 to C6, communication instructions of the control request, the state acquisition request and the state data packet are also encrypted by adopting an encryption algorithm and then sent between the main control unit and the access unit, so that the system security of the Bluetooth network is ensured.
Fig. 9 is a schematic structural diagram of a bluetooth networking system according to a second embodiment of the present invention, as shown in fig. 9, where the bluetooth networking system according to the second embodiment of the present invention includes: a main control unit 11 and an access unit 12.
The main control unit 11 includes: a first networking module 111.
The first networking module 111 is configured to: broadcasting and sending a networking request; calculating according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message; verifying the second plaintext data, and if the verification is passed, allowing the access unit to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
the access unit 12 comprises: a second networking module 121.
The second networking module is used for: calculating according to the received networking request and a first locally preset secret key to obtain first plaintext data of the networking request; and sending a networking confirmation message to the main control unit according to the first plaintext data.
The bluetooth networking system in the second embodiment of the present invention is an implementation device of the bluetooth networking method shown in fig. 3, and the specific principle thereof may refer to the first embodiment and will not be described herein.
Fig. 10 is a schematic structural diagram of a bluetooth networking system according to an embodiment of the present invention, and as shown in fig. 10, the bluetooth networking system according to an embodiment of the present invention includes: a main control unit 11 and an access unit 12.
The main control unit 11 includes: a first networking module 111;
the first networking module 111 is configured to: broadcasting and sending a networking request; calculating according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message; verifying the second plaintext data, and if the verification is passed, allowing the access unit to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
the access unit 12 comprises: a second networking module 121;
the second networking module 121 is configured to: calculating according to the received networking request and a first locally preset secret key to obtain first plaintext data of the networking request; and sending a networking confirmation message to the main control unit according to the first plaintext data.
The main control unit 11 further includes: a management module 112.
The management module 112 is configured to:
distributing network identity identification to the access unit;
receiving equipment identification and type information of the access unit, which are sent by the access unit;
and storing the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit.
The access unit 12 further comprises: a connection module 122 and an execution module 123.
The connection module 122 is configured to: establishing connection with the main control unit according to the network identity;
the execution module 123 is configured to: executing a control request sent by the main control unit; acquiring a request feedback state data packet according to the state sent by the main control unit;
the main control unit 11 further includes: the control module 113 and the data acquisition module 114.
The control module 113 is configured to: sending a control request to the access unit according to the network identity of the access unit;
the data acquisition module 114 is configured to: sending a state acquisition request to the access unit according to the network identity of the access unit; and analyzing the state data packet fed back by the access unit according to the type information of the access unit.
The bluetooth networking system shown in fig. 10 of the present invention is an implementation device of the bluetooth networking method shown in fig. 6 and fig. 7, and the specific principle thereof may refer to the corresponding embodiments of fig. 6 and fig. 7, which are not described herein again.
Fig. 11 is a schematic structural diagram of a bluetooth networking system according to another embodiment of the present invention, as shown in fig. 11, where the bluetooth networking system according to the other embodiment is provided, and the main control unit 11 further includes: a broadcast module 115.
The broadcasting module 115 is configured to: broadcasting a transmission control request; the control request carries the network identity of the access unit;
the access unit 12 further comprises: an execution module 123;
the execution module 123 is configured to: and carrying out identity matching according to the network identity carried by the control request, if the matching is successful, executing the control request, and if the matching is failed, not executing the control request.
The main control unit further includes: a broadcasting module 115 and a data acquisition module 114;
the broadcasting module 115 is configured to: broadcasting a transmission state acquisition request; the state acquisition request carries a network identity of the access unit;
the data acquisition module 114 is configured to: and analyzing the state data packet according to the type information of the access unit.
The access unit comprises: a data acquisition module 124.
The data acquisition module 124 is configured to: and carrying out identity matching according to the network identity carried by the state acquisition request, if the matching is successful, feeding back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, not executing the state acquisition request.
The bluetooth networking system shown in fig. 11 of the present invention is an implementation device of the bluetooth networking method shown in fig. 6 and fig. 8, and the specific principle thereof may refer to the corresponding embodiments of fig. 6 and fig. 8, which are not described herein again.
Specifically, in the bluetooth networking system shown in fig. 9 to 11 according to the embodiment of the present invention, the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, using Application Specific Integrated Circuits (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software programs of the present application may be executed by a processor to implement the steps or functions as described above. Likewise, the software programs of the present application (including associated data structures) may be stored on a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. In addition, some steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
Furthermore, portions of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application by way of operation of the computer. Program instructions for invoking the methods of the present application may be stored in fixed or removable recording media and/or transmitted via a data stream in a broadcast or other signal bearing medium and/or stored within a working memory of a computer device operating according to the program instructions. An embodiment according to the present application comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to operate a method and/or a solution according to the embodiments of the present application as described above.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the apparatus claims can also be implemented by means of one unit or means in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.
Claims (9)
1. A bluetooth networking method, comprising:
the main control unit broadcasts and sends a networking request;
the access unit calculates according to the received networking request and a first key preset locally so as to obtain first plaintext data of the networking request;
the access unit sends a networking confirmation message to the main control unit according to the first plaintext data;
the main control unit calculates according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message;
the main control unit verifies the second plaintext data, and if the verification is passed, the access unit is allowed to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
after allowing the access unit to access the bluetooth network controlled by the main control unit, further comprising:
the main control unit distributes network identity identification to the access unit;
the access unit sends the equipment identification and the type information of the access unit to the main control unit;
the main control unit stores the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit;
The access unit establishes connection with the main control unit according to the network identity;
the main control unit sends a control request to the access unit according to the network identity of the access unit so as to enable the access unit to execute the control request;
the main control unit sends a state acquisition request to the access unit according to the network identity of the access unit so as to acquire a state data packet fed back by the access unit, and the main control unit analyzes the state data packet according to the type information of the access unit;
the state data packet comprises a pressure signal, a body temperature signal and a blood oxygen signal of the physiological monitoring module, and a room temperature signal, a light sense signal and a sound signal of the environment monitoring module.
2. The bluetooth networking method of claim 1, further comprising:
the main control unit broadcasts and sends a control request; the control request carries the network identity of the access unit;
the access unit performs identity matching according to the network identity carried by the control request, if the matching is successful, the control request is executed, and if the matching is failed, the control request is not executed.
3. The bluetooth networking method of claim 1, further comprising:
the main control unit broadcasts a sending state acquisition request; the state acquisition request carries a network identity of the access unit;
the access unit performs identity matching according to the network identity carried by the state acquisition request, if the matching is successful, the access unit feeds back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, the state acquisition request is not executed;
and the main control unit analyzes the state data packet according to the type information of the access unit.
4. A bluetooth networking method according to any of claims 1 to 3, wherein the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
5. A bluetooth networking system, comprising: a main control unit and an access unit;
the main control unit includes: a first networking module;
The first networking module is used for: broadcasting and sending a networking request; calculating according to the received networking acknowledgement message and a locally preset second key to obtain second plaintext data of the networking acknowledgement message; verifying the second plaintext data, and if the verification is passed, allowing the access unit to access a Bluetooth network controlled by the main control unit; otherwise, the access unit is not allowed to access the Bluetooth network;
the access unit comprises: a second networking module;
the second networking module is used for: calculating according to the received networking request and a first locally preset secret key to obtain first plaintext data of the networking request; sending a networking acknowledgement message to a main control unit according to the first plaintext data;
the main control unit further includes: a management module;
the management module is used for:
distributing network identity identification to the access unit;
receiving equipment identification and type information of the access unit, which are sent by the access unit;
storing the association corresponding relation among the network identity identifier, the equipment identifier and the type information of the access unit;
the access unit further comprises: the connecting module and the executing module;
The connection module is used for: establishing connection with the main control unit according to the network identity;
the execution module is used for: executing a control request sent by the main control unit; acquiring a request feedback state data packet according to the state sent by the main control unit;
the main control unit further includes: a control module and a data acquisition module;
the control module is used for: sending a control request to the access unit according to the network identity of the access unit;
the data acquisition module is used for: sending a state acquisition request to the access unit according to the network identity of the access unit; analyzing the state data packet fed back by the access unit according to the type information of the access unit; the state data packet comprises a pressure signal, a body temperature signal and a blood oxygen signal of the physiological monitoring module, and a room temperature signal, a light sense signal and a sound signal of the environment monitoring module.
6. The Bluetooth networking system of claim 5, wherein,
the access unit further comprises: the connecting module and the executing module;
the connection module is used for: establishing connection with the main control unit according to the network identity;
The execution module is used for: executing a control request sent by the main control unit; acquiring a request feedback state data packet according to the state sent by the main control unit;
the main control unit further includes: a control module and a data acquisition module;
the control module is used for: sending a control request to the access unit according to the network identity of the access unit;
the data acquisition module is used for: sending a state acquisition request to the access unit according to the network identity of the access unit; and analyzing the state data packet fed back by the access unit according to the type information of the access unit.
7. The Bluetooth networking system of claim 5, wherein,
the main control unit further includes: a broadcasting module;
the broadcasting module is used for: broadcasting a transmission control request; the control request carries the network identity of the access unit;
the access unit further comprises: an execution module;
the execution module is used for: and carrying out identity matching according to the network identity carried by the control request, if the matching is successful, executing the control request, and if the matching is failed, not executing the control request.
8. The Bluetooth networking system of claim 5, wherein,
the main control unit further includes: a broadcasting module and a data acquisition module;
the broadcasting module is used for: broadcasting a transmission state acquisition request; the state acquisition request carries a network identity of the access unit;
the data acquisition module is used for: analyzing the state data packet according to the type information of the access unit;
the access unit comprises: a data acquisition module;
the data acquisition module is used for: and carrying out identity matching according to the network identity carried by the state acquisition request, if the matching is successful, feeding back a state data packet to the main control unit according to the state acquisition request, and if the matching is failed, not executing the state acquisition request.
9. The bluetooth networking system according to any of claims 5 to 8, wherein the first key is the same as the second key;
the networking request is obtained by calculation of an encryption algorithm according to the second secret key;
the networking confirmation message is obtained by calculation of an encryption algorithm according to the first secret key;
the encryption algorithm adopts a symmetrical encryption algorithm.
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| CN115766442A (en) * | 2022-10-31 | 2023-03-07 | 阿波罗智能技术(北京)有限公司 | Automobile network upgrading method, device, equipment, medium and automobile |
| CN116033490A (en) * | 2023-01-06 | 2023-04-28 | 吉林大学 | Method, system, device and medium for displaying underwater wireless sensor network data |
| CN116723513B (en) * | 2023-07-07 | 2024-05-24 | 深圳市德思杰科技有限公司 | Encryption authorization method for USB (universal serial bus) to network |
| CN117997675B (en) * | 2024-02-07 | 2025-05-27 | 奉加科技(上海)股份有限公司 | Network access communication method, gateway equipment and peripheral equipment |
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