Relay assembly and vehicle anti-theft safety system

Abstract

A relay assembly provided by the present invention comprises a relay plug, a socket and a disassembly detection module, the relay plug comprises a shell and a circuit module arranged in the shell, and the circuit module comprises a circuit board, a remote communication module, a positioning module, a control module and a relay. The remote communication module, the positioning module, the control module and the relay are all arranged on the circuit board and are all electrically connected with the circuit board, and the remote communication module, the positioning module and the relay are all in electric signal connection with the control module; the disassembly detection module is arranged on the relay plug and / or socket, the disassembly detection module is electrically connected with the circuit board, and the disassembly detection module is in electric signal connection with the control module; the dismounting detection module is used for triggering and sending an electric signal to the control module after the relay plug is separated from the socket, and the control module sends dismounting alarm information to the cloud platform through the remote communication module after receiving the electric signal. The invention further provides a vehicle anti-theft safety system.

Description

Technical Field

[0001] The present invention relates to the technical field of relay structures, and in particular to a relay assembly and a vehicle anti-theft security system. Background Art

[0002] A positioning device is a device that uses satellite positioning and uploads the obtained positioning data to a server through a mobile communication module (GSM / GPRS network). The positioning device generally has a positioning module and a communication module. The positioning module is used to obtain the position information of the positioning device, and then the communication module transmits the position information obtained by the positioning module to the cloud server. The user uses their mobile terminal device (such as a mobile phone) to interact with the cloud server to obtain the position information of the positioning device.

[0003] In order to monitor the position of a vehicle and achieve an anti-theft function, many vehicles are currently equipped with positioning devices. However, the installation positions of existing positioning devices are generally not concealed enough (usually installed at the cab position), and the positioning devices are easily discovered and disassembled and damaged; once the positioning device is disassembled and damaged, it is difficult for the user to determine the whereabouts of the vehicle, thus increasing the difficulty of retrieving the vehicle. Summary of the Invention

[0004] The purpose of the present invention is to provide a relay assembly, which integrates a positioning function and the switching function of the relay itself, increases the concealment of the positioning device, and has a disassembly alarm function, improving the safety.

[0005] The present invention provides a relay assembly, including a relay plug, a socket, and a disassembly detection module. The relay plug is plugged and matched with the socket to achieve electrical connection between the two; the relay plug includes a housing and a circuit module disposed in the housing. The circuit module includes a circuit board, a remote communication module, a positioning module, a control module, and a relay. The remote communication module, the positioning module, the control module, and the relay are all disposed on the circuit board and are all electrically connected to the circuit board. The remote communication module, the positioning module, and the relay are all electrically connected to the control module; The disassembly detection module is disposed on the relay plug and / or the socket. The disassembly detection module is electrically connected to the circuit board and is electrically connected to the control module by a signal. The disassembly detection module is used to trigger and send an electrical signal to the control module after the relay plug is separated from the socket. After receiving the electrical signal, the control module sends a disassembly alarm message to the cloud platform through the remote communication module.

[0006] In an implementable manner, a switch assembly is provided on the circuit board. The disassembly detection module is electrically connected to the circuit board through the switch assembly, and the switch assembly is electrically connected to the control module in an electrical signal manner; the control module is configured to control the opening and closing of the switch assembly so that the disassembly detection module is conducted or disconnected from the circuit board.

[0007] In an implementable manner, the disassembly detection module includes a photosensor and a light guide member; the photosensor is disposed on the circuit board and electrically connected to the circuit board, and the photosensor is electrically connected to the control module in an electrical signal manner; a receiving hole is provided on the housing wall of the housing, the receiving hole penetrates the housing wall, the receiving hole is disposed corresponding to the photosensor, and the light guide member is disposed in the receiving hole; When the relay plug is inserted into the socket, the side of the housing provided with the receiving hole abuts against the socket; after the relay plug is separated from the socket, the photosensor can convert a light signal into an electrical signal and send it to the control module after receiving external light.

[0008] In an implementable manner, the disassembly detection module includes a Hall sensor and a magnetic block; the Hall sensor is disposed on the circuit board and electrically connected to the circuit board, and the Hall sensor is electrically connected to the control module in an electrical signal manner; the magnetic block is disposed on the socket; When the relay plug is inserted into the socket, the Hall sensor and the magnetic block are close to each other and the distance between them is within a preset range; after the relay plug is separated from the socket, the Hall sensor and the magnetic block are far from each other and the distance between them exceeds the preset range, and the Hall sensor generates an electrical signal and sends it to the control module.

[0009] In an implementable manner, the circuit board includes a first sub-circuit board, a second sub-circuit board, a third sub-circuit board, and a fourth sub-circuit board. A support plate with an L-shaped structure is provided inside the housing. The support plate includes a first plate portion and a second plate portion that are integrally connected. The first sub-circuit board and the fourth sub-circuit board are horizontally arranged, and the second sub-circuit board, the third sub-circuit board, and the support plate are vertically arranged. The fourth sub-circuit board and the first sub-circuit board are arranged opposite to each other with an upper and lower interval, and the fourth sub-circuit board is located above the first sub-circuit board. The second sub-circuit board, the third sub-circuit board, and the support plate are all located between the fourth sub-circuit board and the first sub-circuit board. The second sub-circuit board is arranged opposite to the first plate portion with an interval, and the third sub-circuit board is arranged opposite to the second plate portion with an interval. The first sub-circuit board, the second sub-circuit board, the third sub-circuit board, the fourth sub-circuit board, and the support plate are arranged to form a cubic structure, and an accommodation cavity is formed among the four. The second sub-circuit board, the third sub-circuit board, and the fourth sub-circuit board are all electrically connected to the first sub-circuit board. The circuit module further includes a battery and a positioning antenna. The battery and the relay are both disposed on the upper surface of the first sub-circuit board and are both electrically connected to the first sub-circuit board. The battery and the relay are both located inside the accommodation cavity. The positioning antenna is disposed on the upper surface of the fourth sub-circuit board and is electrically connected to the fourth sub-circuit board. The positioning antenna is electrically connected to the positioning module.

[0010] In an implementable manner, a limiting portion is provided on the support plate. The limiting portion is located inside the accommodation cavity. A limiting groove is formed by enclosing between the limiting portion and the relay, and the battery is disposed in the limiting groove.

[0011] In an implementable manner, the housing includes a main housing and a bottom cover that are connected to each other. A positioning groove is provided on the upper surface of the bottom cover. The first sub-circuit board is disposed in the positioning groove. The second sub-circuit board, the third sub-circuit board, the fourth sub-circuit board, and the support plate are all disposed inside the main housing. The second sub-circuit board, the third sub-circuit board, and the support plate are all fixed to the first sub-circuit board, and the fourth sub-circuit board is fixed to the support plate.

[0012] In an implementable manner, the circuit module further includes an interference signal detection module. The interference signal detection module is disposed on the circuit board and is electrically connected to the circuit board. The interference signal detection module is electrically connected to the control module. The interference signal detection module is used to detect the intensity value of the interference signal around the relay assembly. When the interference signal detection module detects that the intensity value of the interference signal reaches a first preset value, the control module sends a first-level shielding warning message to the cloud platform through the remote communication module; When the interference signal detection module detects that the intensity value of the interference signal reaches a second preset value, the control module sends a second-level shielding warning message to the cloud platform through the remote communication module; Wherein, the second preset value is greater than the first preset value, and both the first preset value and the second preset value are less than a threshold value; the threshold value is the intensity value of the interference signal when the remote communication module cannot communicate with the cloud platform remotely.

[0013] In a realizable manner, the circuit module further includes a short-range communication module, the short-range communication module is arranged on the circuit board and electrically connected to the circuit board, and the short-range communication module is electrically connected to the control module; the short-range communication module is used for wireless communication with an external remote control device and / or a short-range communication module in other relay components.

[0014] The present invention also provides a vehicle anti-theft security system, including a first relay device, a second relay device, an anti-theft alarm module and a steering wheel lock module, and both the first relay device and the second relay device are the relay components as described above; the first relay device is electrically connected to the anti-theft alarm module, and the second relay device is electrically connected to the steering wheel lock module; After the relay plug and socket in the first relay device are separated, the control module in the first relay device sends a disassembly alarm message to the control module in the second relay device through the short-range communication module, and the control module in the second relay device controls the relay in the second relay device to close after receiving the disassembly alarm message, thereby causing the steering wheel lock in the steering wheel lock module to lock.

[0015] The relay component provided by the present invention, by arranging a remote communication module, a positioning module, a control module and a relay in the relay plug, enables the relay plug to have both a positioning function and the switching function of the relay itself, that is, the relay component serves as both a relay and a positioning device at the same time. Since the positioning function is integrated into the relay component, the concealment of the positioning device is increased, the risk of being discovered, disassembled and damaged by lawbreakers can be reduced, and the safety of the vehicle can be improved. At the same time, since the relay is electrically connected to the control module, the user can use the mobile terminal to send a control instruction to the control module through the remote communication module, thereby controlling the opening and closing of the relay, and further realizing the corresponding function.

[0016] Meanwhile, by setting up a disassembly detection module, when the relay plug is disconnected from the socket, the disassembly detection module is triggered, and then the control module sends a disassembly alarm message to the cloud platform through the remote communication module. The cloud platform then sends the disassembly alarm message to the user's mobile terminal, enabling the user to promptly learn that the relay assembly has been disassembled, realizing the disassembly alarm function of the relay assembly and enhancing the vehicle's safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of a relay plug in an embodiment of the present invention.

[0018] Figure 2 is Figure 1 an exploded structural diagram of.

[0019] Figure 3 is Figure 2 an exploded structural diagram after further decomposition.

[0020] Figure 4 FIG. is a top view of the circuit module in an embodiment of the present invention after removing the fourth sub-circuit board.

[0021] Figure 5 FIG. is a schematic structural diagram of a socket in an embodiment of the present invention.

[0022] Figure 6 FIG. is a cross-sectional schematic diagram of a relay assembly in an embodiment of the present invention.

[0023] Figure 7 FIG. is a schematic diagram of the signal transmission relationship between the relay assembly, an external remote control device, a cloud platform, and a mobile terminal in an embodiment of the present invention.

[0024] Figure 8 FIG. is a cross-sectional schematic diagram of a relay assembly in another embodiment of the present invention.

[0025] Figure 9 FIG. is a schematic diagram of the relationship between the intensity of interference signals detected by the interference signal detection module and time when the signal shield is working in an embodiment of the present invention.

[0026] Figure 10 FIG. is a structural block diagram of a vehicle anti-theft safety system in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further describes in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0029] The orientation terms such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the present invention are defined based on the positions of the structures in the drawings and the positions relative to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of orientation terms should not limit the scope of protection claimed by the present invention.

[0030] As Figures 1 to 7 shown, an embodiment of the present invention provides a relay assembly, including a relay plug 100, a socket 300, and a disassembly detection module 4. The socket 300 is used for electrically connecting to an electrical device (not shown in the figure). The relay plug 100 is inserted and mated with the socket 300 to achieve electrical connection between the two. The relay plug 100 includes a housing 1 and a circuit module 2 disposed within the housing 1. The housing 1 is a sealed structure. The circuit module 2 includes a circuit board 21, a remote communication module 22, a positioning module 23, a control module 24, and a relay 25 (specifically an electromagnetic relay). The remote communication module 22, the positioning module 23, the control module 24, and the relay 25 are all disposed on the circuit board 21 and are all electrically connected to the circuit board 21. The remote communication module 22, the positioning module 23, and the relay 25 are all electrically connected to the control module 24 by electrical signals (specifically, the control ends of the remote communication module 22, the positioning module 23, and the relay 25 are all electrically connected to the control module 24 by the circuit board 21). Among them, the remote communication module 22 is used for remote wireless communication, the positioning module 23 is used for receiving positioning information, and the control module 24 is used for wirelessly transmitting the positioning information received by the positioning module 23 to the cloud platform 6 (i.e., the cloud server) through the remote communication module 22. The user's mobile terminal 7 (such as a mobile phone, a computer, etc.) can perform data interaction with the cloud platform 6 to obtain the positioning information (the specific functions and working principles of the remote communication module 22 and the positioning module 23 can refer to the prior art and will not be elaborated here).

[0031] The disassembly detection module 4 is disposed on the relay plug 100 and / or the socket 300. The disassembly detection module 4 is electrically connected to the circuit board 21 and is electrically connected to the control module 24 by electrical signals (specifically, the disassembly detection module 4 is electrically connected to the control module 24 by the circuit board 21). The disassembly detection module 4 is used for triggering and sending an electrical signal to the control module 24 after the relay plug 100 is separated (disassembled) from the socket 300. After receiving the electrical signal, the control module 24 sends a disassembly alarm message to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 then sends the disassembly alarm message to the user's mobile terminal 7 (for example, the control module 24 can send information such as "the relay is suspected of being disassembled" to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 then sends this information to the user's mobile terminal 7 to remind the user).

[0032] Specifically, the relay 25 is an electrical control device, which is an electrical appliance that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the specified requirements. The relay 25 has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. In this embodiment, a plurality of thin sheet-like metal pins 26 are provided on the circuit board 21, one end of each metal pin 26 is electrically connected to the circuit board 21 (specifically, the metal pin 26 and the circuit board 21 are connected by welding), and the other end of each metal pin 26 extends out of the housing 1 (the housing 1 is provided with a through hole 123 for the metal pin 26 to pass through); the socket 300 includes a base 31, a plurality of wires 32, and a plurality of docking terminals 33 arranged at intervals in the base 31, the docking terminals 33 are exposed from the base 31, the plurality of wires 32 are respectively connected to the plurality of docking terminals 33 in a one-to-one correspondence, and the plurality of wires 32 are respectively connected to the plurality of docking terminals 33. The wire 32 is used to electrically connect with the electrical equipment; the plurality of metal pins 26 are respectively plugged and matched with the plurality of docking terminals 33 in a one-to-one correspondence (in the present embodiment, there are five metal pins 26 and five docking terminals 33), that is, when the relay plug 100 is plugged into the socket 300, the plurality of metal pins 26 are respectively plugged and matched with the plurality of docking terminals 33 in a one-to-one correspondence and contact each other to be electrically connected. At this time, the relay 25 in the relay plug 100 is electrically connected with the electrical equipment through the circuit board 21, the metal pins 26, the docking terminals 33 and the wire 32 in sequence, so that the relay 25 can control the opening and closing of the electrical equipment.

[0033] The relay assembly provided in the embodiment of the present invention provides a remote communication module 22, a positioning module 23, a control module 24 and a relay 25 in the relay plug 100, so that the relay plug 100 has both the positioning function and the switch function of the relay itself, that is, the relay assembly serves as a relay and a positioning device at the same time. Since the positioning function is integrated into the relay assembly, the concealment of the positioning device is increased, and the risk of being discovered and disassembled and damaged by criminals can be reduced, thereby improving the safety of the vehicle. At the same time, since the control end of the relay 25 is connected to the control module 24 by electrical signals, that is, the control module 24 can control the opening and closing of the relay 25, the user can use the mobile terminal 7 to send a control instruction to the control module 24 through the remote communication module 22, thereby controlling the opening and closing of the relay 25, and then realizing the corresponding function (for example, when the relay assembly is applied to the door lock module of the vehicle, that is, the relay assembly is electrically connected to the door lock, and the relay assembly is used to control the opening and closing of the door lock, at this time, the user can use the mobile terminal 7 to send a door lock instruction or a door open instruction to the control module 24 through the remote communication module 22, thereby realizing the locking and unlocking of the door).

[0034] At the same time, by setting up the disassembly detection module 4, when the relay plug 100 is disassembled from the socket 300, the disassembly detection module 4 is triggered, and then the control module 24 sends the disassembly alarm information to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 then sends the disassembly alarm information to the user's mobile terminal 7, so that the user can know in time that the relay assembly has been disassembled, realizing the disassembly alarm function of the relay assembly and improving the safety of the vehicle.

[0035] As an implementation mode, a switch assembly 27 is provided on the circuit board 21, and the disassembly detection module 4 is electrically connected to the circuit board 21 through the switch assembly 27, and the switch assembly 27 is electrically connected to the control module 24 (specifically, the switch assembly 27 is electrically connected to the control module 24 through the circuit board 21); the control module 24 is used to control the opening and closing of the switch assembly 27, so that the disassembly detection module 4 is connected or disconnected with the circuit board 21, and then the disassembly detection module 4 is operated or stopped. The rated operating current and rated operating voltage of the switch assembly 27 are less than the rated operating current and rated operating voltage of the relay 25, and the switch assembly 27 can be specifically an electromagnetic switch, a MOS tube switch circuit, etc. (since the operating current and operating voltage of the disassembly detection module 4 are relatively small, only a relatively small switch assembly 27 is required).

[0036] Specifically, since the relay assembly needs to be debugged with power on during installation or replacement, the relay plug 100 and the socket 300 may be disassembled. If the disassembly alarm function is normally turned on at this time, the disassembly detection module 4 will frequently trigger an alarm (false alarm), affecting the debugging operation. Therefore, the present embodiment is provided with a switch assembly 27. When the control module 24 receives a forced alarm release signal based on the mobile terminal 7, it controls the switch assembly 27 to be closed, so that the disassembly detection module 4 is disconnected from the circuit board 21, and then the disassembly alarm function is turned off to avoid false alarms; when the control module 24 receives an alarm execution signal based on the mobile terminal 7, it controls the switch assembly 27 to be opened, so that the disassembly detection module 4 is connected to the circuit board 21, and then the normal disassembly alarm function is restored (for example, the mobile terminal 7 is provided with the options of "turning on the disassembly alarm function" and "turning off the disassembly alarm function". When the user selects the option of "turning off the disassembly alarm function", a forced alarm release signal is generated; when the user selects the option of "turning on the disassembly alarm function", an alarm execution signal is generated).

[0037] like Figure 6As shown, as an implementation manner, the disassembly detection module 4 includes a light sensor 41 and a transparent light guide 42; the light sensor 41 is disposed on the circuit board 21 and electrically connected to the circuit board 21 (specifically, the light sensor 41 is electrically connected to the circuit board 21 through a switch assembly 27), and the light sensor 41 is electrically connected to the control module 24. A receiving hole 121 is provided on the housing wall of the housing 1, the receiving hole 121 penetrates through the housing wall of the housing 1, the receiving hole 121 is disposed corresponding to the light sensor 41, the light guide 42 is disposed in the receiving hole 121, and the light guide 42 seals the receiving hole 121; the light guide 42 is specifically a light guide column. On the one hand, the light guide 42 functions to guide light, and external light can be conducted to the light sensor 41 through the light guide 42; on the other hand, the light guide 42 can function to seal the receiving hole 121 to prevent external moisture, dust, etc. from entering the housing 1 through the receiving hole 121.

[0038] When the relay plug 100 is plugged into the socket 300, the side of the housing 1 provided with the receiving hole 121 abuts against the socket 300 (specifically, the housing 1 abuts against the base 31). At this time, external light cannot irradiate the light guide 42 under the shielding of the socket 300 and thus cannot be conducted to the light sensor 41. At this time, the control module 24 does not perform the disassembly alarm action; when the relay plug 100 is separated from the socket 300, the light guide 42 is exposed, enabling the light guide 42 to conduct external light to the light sensor 41. The light sensor 41 can convert the optical signal into an electrical signal and send it to the control module 24 after receiving the external light, and the control module 24 then performs the disassembly alarm action.

[0039] As Figure 8 As shown, as another implementation manner, the disassembly detection module 4 includes a Hall sensor 43 and a magnetic block 44, and the magnetic block 44 can specifically be a magnet, a magnetic steel or other magnets. The Hall sensor 43 is disposed on the circuit board 21 and electrically connected to the circuit board 21 (specifically, the Hall sensor 43 is electrically connected to the circuit board 21 through a switch assembly 27), and the Hall sensor 43 is electrically connected to the control module 24. The magnetic block 44 is disposed on the socket 300 (specifically, the magnetic block 44 can be embedded in the base 31), and the magnetic block 44 is disposed corresponding to the Hall sensor 43.

[0040] When the relay plug 100 is inserted into the socket 300, the Hall sensor 43 and the magnetic block 44 approach each other and the distance between them is within a preset range. At this time, the control module 24 does not perform the disassembly alarm action; when the relay plug 100 is separated from the socket 300, the Hall sensor 43 and the magnetic block 44 move away from each other and the distance between them exceeds the preset range. The Hall sensor 43 generates an electrical signal and sends it to the control module 24, and the control module 24 then performs the disassembly alarm action. Specifically, the Hall sensor 43 is an electronic switch that uses a magnetic field as a sensor and controls the device by detecting changes in the magnetic field intensity. It is a non-contact switch that can detect the presence of an object; the principle of the Hall sensor 43 is that it has a built-in magnet and is paired with a microelectronic component. When it approaches an external magnetic field, a voltage will be generated. In this embodiment, when the relay plug 100 is inserted into the socket 300, the magnetic block 44 is close to the Hall sensor 43. At this time, the Hall sensor 43 outputs a low level to the control module 24; when the relay plug 100 is disconnected from the socket 300, the magnetic block 44 and the Hall sensor 43 move away from each other, and the distance between them exceeds the preset range. At this time, the Hall sensor 43 outputs a high level (i.e., a level change) to the control module 24, thereby triggering the disassembly alarm.

[0041] In other embodiments, the disassembly detection module 4 may also include a light sensor 41, a light guide 42, a Hall sensor 43, and a magnetic block 44 at the same time, that is, either the light sensor 41 or the Hall sensor 43 will trigger an alarm to further ensure safety.

[0042] Such as Figures 2 to 4As shown in the figure, as an implementation manner, the circuit board 21 includes a first sub-circuit board 211, a second sub-circuit board 212, a third sub-circuit board 213, and a fourth sub-circuit board 214. A support board 13 with an L-shaped structure is provided in the housing 1. The support board 13 includes a first board portion 131 and a second board portion 132 that are integrally connected; the first sub-circuit board 211 and the fourth sub-circuit board 214 are horizontally arranged, and the second sub-circuit board 212, the third sub-circuit board 213, and the support board 13 are vertically arranged; the fourth sub-circuit board 214 and the first sub-circuit board 211 are arranged opposite to each other at an upper and lower interval, and the fourth sub-circuit board 214 is located above the first sub-circuit board 211; the second sub-circuit board 212, the third sub-circuit board 213, and the support board 13 are all located between the fourth sub-circuit board 214 and the first sub-circuit board 211. The second sub-circuit board 212 is arranged opposite to the first board portion 131 at an interval, and the third sub-circuit board 213 is arranged opposite to the second board portion 132 at an interval. The first sub-circuit board 211, the second sub-circuit board 212, the third sub-circuit board 213, the fourth sub-circuit board 214, and the support board 13 are arranged to form a cubic structure, and an accommodation cavity 210 is formed among the four; the second sub-circuit board 212, the third sub-circuit board 213, and the fourth sub-circuit board 214 are all electrically connected to the first sub-circuit board 211.

[0043] The circuit module 2 further includes a battery 201 and a positioning antenna 202. The positioning antenna 202 is used to receive positioning signals, and the battery 201 is used to supply power to the circuit module 2. Both the battery 201 and the relay 25 are arranged on the upper surface of the first sub-circuit board 211 and are both electrically connected to the first sub-circuit board 211. Both the battery 201 and the relay 25 are located in the accommodation cavity 210; the positioning antenna 202 is arranged on the upper surface of the fourth sub-circuit board 214 and is electrically connected to the fourth sub-circuit board 214. The positioning antenna 202 is electrically connected to the positioning module 23; the remote communication module 22, the positioning module 23, and the control module 24 are arranged on the second sub-circuit board 212 and / or the third sub-circuit board 213.

[0044] Specifically, currently, the circuit module 2 generally uses a single circuit board, that is, only one circuit board is provided in the housing 1 to carry and install various electronic components. Since the number of electronic components is large, the size of the circuit board needs to be set relatively large (the circuit board is generally a rectangular structure, and its length and width dimensions are generally large). In this way, the external dimensions of the relay plug 100 will be relatively large (the length and width dimensions are large), which is not conducive to the miniaturization design of the relay assembly. In this embodiment, by splitting the circuit board 21 into four small circuit boards and installing each electronic component on the four small circuit boards respectively, the external dimensions of the relay plug 100 can be reduced, which is conducive to the miniaturization design of the relay assembly. At the same time, since the positioning antenna 202 is arranged on the upper surface of the fourth sub-circuit board 214, the signal shielding received by the positioning antenna 202 can be reduced, so that the positioning antenna 202 can better receive positioning signals.

[0045] As Figures 2 to 4 shown, as an implementation manner, a limiting portion 133 is provided on the support plate 13. The limiting portion 133 is connected to both the first plate portion 131 and the second plate portion 132 at the same time. The limiting portion 133 and the support plate 13 are of an integral structure. The limiting portion 133 is located in the accommodation cavity 210. A limiting groove 130 is formed by enclosing between the limiting portion 133 and the relay 25. The battery 201 is arranged in the limiting groove 130, that is, the battery 201 abuts against both the limiting portion 133 and the relay 25 at the same time, so as to limit and fix the battery 201.

[0046] As Figures 1 to 4 well as Figure 6 shown, as an implementation manner, the housing 1 includes a main housing 11 and a bottom cover 12 which are connected to each other (in this embodiment, the main housing 11 and the bottom cover 12 are fixed by snap connection). A positioning groove 122 is provided on the upper surface of the bottom cover 12. The first sub-circuit board 211 is arranged in the positioning groove 122. The second sub-circuit board 212, the third sub-circuit board 213, the fourth sub-circuit board 214 and the support plate 13 are all arranged in the main housing 11. The second sub-circuit board 212, the third sub-circuit board 213 and the support plate 13 are all fixed to the first sub-circuit board 211, and the fourth sub-circuit board 214 is fixed to the support plate 13. The accommodation hole 121 and the through hole 123 are both provided on the bottom cover 12. The metal pin 26 is arranged on the lower surface of the first sub-circuit board 211 and is electrically connected to the first sub-circuit board 211. The metal pin 26 passes through the bottom cover 12 and extends below the bottom cover 12.

[0047] Specifically, in this embodiment, both the second sub-circuit board 212 and the third sub-circuit board 213 are fixed and electrically connected to the first sub-circuit board 211 by soldering (tin soldering) (specifically, pads are provided on the first sub-circuit board 211, the second sub-circuit board 212, and the third sub-circuit board 213. The pads on the second sub-circuit board 212 are connected to the pads on the first sub-circuit board 211 by soldering to achieve the fixation and electrical connection of the two; the pads on the third sub-circuit board 213 are connected to the pads on the first sub-circuit board 211 by soldering to achieve the fixation and electrical connection of the two); at the same time, protrusion portions 215 are provided at the lower ends of the second sub-circuit board 212 and the third sub-circuit board 213, and a plurality of first card holes 217 are provided on the first sub-circuit board 211. The protrusion portions 215 on the second sub-circuit board 212 and the third sub-circuit board 213 are inserted into and clamped in the first card holes 217 on the first sub-circuit board 211 to facilitate positioning and assembly and play an auxiliary fixing role. The support plate 13 is fixedly connected to the first sub-circuit board 211 by screws (not shown in the figure). The fourth sub-circuit board 214 is placed on the second sub-circuit board 212, the third sub-circuit board 213, and the support plate 13. Convex columns 134 are provided on the support plate 13, and second card holes 216 are provided on the fourth sub-circuit board 214. The convex columns 134 are inserted into and clamped in the second card holes 216 to achieve the fixation of the fourth sub-circuit board 214 and the support plate 13; at the same time, when the circuit module 2 is installed in the housing 1, the positioning antenna 202 abuts against the inner wall of the housing 1, which can further fix the fourth sub-circuit board 214. A male head 218 is provided on one of the fourth sub-circuit board 214 and the second sub-circuit board 212, and a female head 219 is provided on the other (in this embodiment, the male head 218 is provided on the fourth sub-circuit board 214, and the female head 219 is provided on the second sub-circuit board 212). The male head 218 and the female head 219 are inserted and mated to achieve the electrical connection between the fourth sub-circuit board 214 and the second sub-circuit board 212, that is, the fourth sub-circuit board 214 is electrically connected to the first sub-circuit board 211 through the second sub-circuit board 212.

[0048] As an implementation manner, the circuit module 2 further includes an interference signal detection module 28. The interference signal detection module 28 is disposed on the circuit board 21 and electrically connected to the circuit board 21. The interference signal detection module 28 is electrically connected to the control module 24 (specifically, the interference signal detection module 28 is electrically connected to the control module 24 through the circuit board 21). The interference signal detection module 28 is used to detect the intensity value of the interference signal around the relay assembly.

[0049] When the interference signal detection module 28 detects that the intensity value of the interference signal reaches (i.e., is greater than or equal to) the first preset value, the control module 24 sends a first-level shielding warning message to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 sends the first-level shielding warning message to the user's mobile terminal 7; When the interference signal detection module 28 detects that the intensity value of the interference signal reaches (i.e., is greater than or equal to) the second preset value, the control module 24 sends a secondary shielding warning message to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 sends the secondary shielding warning message to the user's mobile terminal 7; Among them, the second preset value is greater than the first preset value, and both the first preset value and the second preset value are less than the threshold value; the threshold value is the intensity value of the interference signal when the remote communication module 22 and the cloud platform 6 cannot perform remote communication (that is, when the interference signal detection module 28 detects that the intensity value of the interference signal reaches this threshold value, the remote communication module 22 and the cloud platform 6 will not be able to perform remote communication, and the remote communication module 22 cannot send a shielding warning message to the cloud platform 6, that is, at this time, the relay component has been shielded by the interference signal).

[0050] Specifically, in the actual use process, since the signals of the positioning module 23 and the remote communication module 22 will be affected by external interference signals, some lawless elements use signal jammers to interfere with the normal operation of the positioning device, so that the user cannot track the location information of the vehicle through the positioning device, and the positioning device cannot send an alarm message to the user in time when it is interfered by the signal jammer, so as to achieve the purpose of stealing the vehicle. In this embodiment, by setting the interference signal detection module 28, the control module 24 controls the interference signal detection module 28 to work continuously, and uses the interference signal detection module 28 to detect the intensity value of the interference signal around the relay component. When the interference signal detection module 28 detects that the intensity value of the interference signal reaches the preset value, the control module 24 immediately sends a corresponding shielding warning message to the cloud platform 6 through the remote communication module 22, and the cloud platform 6 then sends the shielding warning message to the user's mobile terminal 7, so that the user can know in time that the relay component is being subjected to signal interference, realizing the signal interference warning function, avoiding vehicle loss, and ensuring property safety.

[0051] Such as Figure 9As shown, when the signal jammer is working, the intensity of the interference signal it emits will first increase and then tend to be stable (the intensity of the interference signal is related to the working power of the signal jammer. When the signal jammer is just turned on, its working power will gradually increase, so the intensity of the interference signal it emits will gradually increase; after working for a period of time (generally from a few seconds to dozens of seconds), its working power tends to be stable, so the intensity of the interference signal it emits also tends to be stable). Therefore, the intensity of the interference signal detected by the interference signal detection module 28 will also first increase and then tend to be stable. When the intensity value of the interference signal detected by the interference signal detection module 28 reaches the threshold, the remote communication module 22 and the cloud platform 6 will not be able to conduct remote communication, and the remote communication module 22 cannot send a shielding warning message to the cloud platform 6. Therefore, it is necessary to set the above first preset value and second preset value to be less than the threshold, so that the control module 24 can timely send a shielding warning message to the cloud platform 6 through the remote communication module 22.

[0052] At the same time, by setting the first-level warning and the second-level warning, the function of preventing false alarms can be achieved. Specifically, in the actual use process of the relay component, there will be many interference signals around it; when the intensity of the interference signal reaches the first preset value, it is impossible to accurately judge whether it is the interference signal emitted by the signal jammer at this time (it may be the interference signal inadvertently emitted by other devices). The control module 24 can send information such as "suspected signal jammer interference detected" to the user's mobile terminal 7 through the remote communication module 22 and the cloud platform 6 to remind the user; when the intensity of the interference signal reaches the second preset value, since the intensity of the interference signal detected at this time is relatively large, and general devices cannot generate such a strong interference signal, it can be judged that the relay component is probably being interfered by the signal jammer. At this time, the control module 24 can send information such as "signal jammer interference detected, please handle it in time" to the user's mobile terminal 7 through the remote communication module 22 and the cloud platform 6 to remind the user. With such settings, it can not only avoid the relay component from failing to send a warning message in time (if only the second-level warning is set, since the intensity of the interference signal is relatively large at this time, the remote communication module 22 may not be able to successfully send the warning message to the cloud platform 6 under strong signal interference, resulting in a warning failure), but also avoid false alarms.

[0053] As an implementation method, the first preset value is 20% - 50% of the threshold, and the second preset value is 40% - 70% of the threshold. For example, the first preset value is 30% of the threshold, and the second preset value is 60% of the threshold.

[0054] As an implementation method, the method for determining the above threshold includes: (1)Place the signal jammer around the relay assembly so that the distance between the signal jammer and the relay assembly is within a preset range (for example, the distance between the signal jammer and the relay assembly is 1 meter); (2)The control module 24 continuously (i.e., without interruption) sends calibration information to the cloud platform 6 through the remote communication module 22, and the calibration information can be any information (such as several characters, etc.); (3)Adjust the operating frequency of the signal jammer to f 1 , then turn on the signal jammer to make the signal jammer emit interference signals, and obtain the intensity value of the interference signals emitted by the signal jammer detected by the interference signal detection module 28 in real time (specifically, an external device such as a computer can be connected to the relay assembly, and the computer reads the intensity value of the interference signals detected by the interference signal detection module 28 in real time to obtain the relationship between the intensity value of the interference signals and time similar to Figure 9 shown); (4)Obtain the time node when the cloud platform 6 cannot receive the calibration information (that is, at this time node, the cloud platform 6 loses the communication connection with the remote communication module 22); (5)According to the time node, obtain the intensity value of the interference signals emitted by the signal jammer detected by the interference signal detection module 28 corresponding to the time node (that is, the limit intensity value), denoted as RSSI 1 ; for example, if the cloud platform 6 starts to be unable to receive the calibration information at the 5th second after the signal jammer is turned on, then the time node is the 5th second, and the intensity value of the interference signals detected by the interference signal detection module 28 at the 5th second is the limit intensity value; (6)Turn off the signal jammer; (7)Adjust the operating frequency of the signal jammer to f 2 , f 3 , … f n , and then repeat the above steps (3) to (6) respectively, and then obtain the intensity values RSSI 2 、RSSI 3 、… RSSI n detected by the interference signal detection module 28 corresponding to them respectively, where n is a positive integer greater than or equal to 3, and the threshold = min(RSSI 1 , RSSI 2 , RSSI 3 , … RSSI n ).

[0055] Specifically, since the remote communication module 22 generally has multiple operating frequency bands (such as 2G frequency band, 3G frequency band, 4G frequency band, etc.), the signal jammer generally also configures multiple operating frequency bands to shield and interfere with each frequency band of the remote communication module 22. The intensity change of the interference signal emitted by the signal jammer at each operating frequency band is not completely consistent, and the anti-interference ability of the remote communication module 22 to each frequency band is also inconsistent (that is, the thresholds are different under different operating frequency bands). Therefore, in order to ensure that the remote communication module 22 can communicate with the cloud platform 6 in a timely and smooth manner when the signal jammer uses various operating frequency bands for interference, the limit intensity values of the interference signals corresponding to the situation where the remote communication module 22 cannot communicate with the cloud platform 6 remotely when the signal jammer uses various operating frequency bands for interference are respectively tested, and then the minimum value among these limit intensity values is taken to obtain the threshold value.

[0056] For example, the operating frequency of the signal jammer is respectively adjusted to 869 - 894 MHz, 925 - 960 MHz, 1805 - 1880 MHz, 1900 - 1990 MHz, and 2100 - 2200 MHz (the above frequency bands can basically cover all the operating frequency bands of the remote communication module 22), and the corresponding limit intensity values obtained are RSSI 1 、RSSI 2 、RSSI 3 、RSSI 4 and RSSI 5 , and then the minimum value among these five data is taken as the threshold value.

[0057] It should be noted that: the order of the above steps (2) and (3) cannot be reversed. If the signal jammer is first turned on and adjusted, and then the remote communication module 22 is controlled to send calibration information to the cloud platform 6, due to the delay between the two operation steps, the signal jammer may have been stably operating (or reached the threshold) before the remote communication module 22 sends the calibration information, resulting in a measurement failure.

[0058] As an implementation manner, the circuit module 2 further includes a short-range communication module 29. The short-range communication module 29 is disposed on the circuit board 21 and electrically connected to the circuit board 21, and is electrically connected to the control module 24 by electrical signals (specifically, the short-range communication module 29 is electrically connected to the control module 24 through the circuit board 21); the short-range communication module 29 is used for wireless communication with an external remote control device 5 and / or the short-range communication module 29 in other relay assemblies. It should be noted that the short-range communication module 29 is for short-range wireless communication (the communication distance is, for example, within 10 meters), while the long-range communication module 22 is for long-range wireless communication, and their communication distances and communication objects are inconsistent. The short-range communication module 29 can specifically be a Bluetooth module (i.e., it can perform Bluetooth communication), an infrared transceiver module (i.e., it can perform infrared communication), a radio frequency transceiver module (i.e., it can perform radio frequency communication), etc.

[0059] Among them, the purpose of setting the short-range communication module 29 is as follows: 1. The short-range communication module 29 can perform wireless communication with the external remote control device 5, enabling the user to quickly control the opening and closing of the relay 25 in the relay assembly through the external remote control device 5 (for example, when the relay assembly is applied to the door lock module of a vehicle, at this time, the user can use the external remote control device 5 to quickly send a door locking instruction or a door opening instruction to the control module 24 through the short-range communication module 29, so that the relay 25 is opened or closed, thereby realizing the locking and unlocking of the door; compared with the method of using the mobile terminal 7 to send instructions to control the opening and closing of the relay 25, this method of using the external remote control device 5 to send instructions is simpler and faster); among them, the external remote control device 5 can be a car remote control key. 2. The short-range communication module 29 can send alarm information (such as disassembly alarm information or shielding warning information) to other relay assemblies, so that other relay assemblies perform opening and closing actions (i.e., realizing the automatic interlocking function).

[0060] As an implementation manner, the positioning module 23 is a GPS positioning module, and the positioning antenna 202 is a GPS ceramic antenna, which can receive GPS positioning information. The long-range communication module 22 is a 2G / 4G dual-band network communication module, that is, the long-range communication module 22 can be compatible with the communication of the 2G network and the 4G network. The circuit module 2 further includes a communication antenna (not shown in the figure) and an interference signal detection antenna (not shown in the figure). The communication antenna and the interference signal detection antenna are both disposed on the circuit board 21 and electrically connected to the circuit board 21. The communication antenna is electrically connected to the long-range communication module 22 through the circuit board 21, and the communication antenna is used for sending and receiving communication information; the interference signal detection antenna is electrically connected to the interference signal detection module 28 through the circuit board 21, and the interference signal detection antenna is used for receiving the interference signals around the relay assembly and transmitting the interference signals to the interference signal detection module 28. There is also a SIM card slot (not numbered in the figure) for inserting a SIM card on the circuit board 21. The control module 24 is an MCU (micro control unit).

[0061] As an implementation manner, an installation plate 14 is further provided on the housing 1, and an installation hole 141 is provided on the installation plate 14. Through the installation hole 141, the relay plug 100 can be installed and fixed at a required position.

[0062] As Figure 10 shown, an embodiment of the present invention further provides a vehicle anti-theft safety system, including a first relay device A, a second relay device B, an anti-theft alarm module C, and a steering wheel lock module D. Both the first relay device A and the second relay device B are the relay assemblies as described above (that is, the above relay assemblies are applied to the vehicle anti-theft safety system). The first relay device A is electrically connected to the anti-theft alarm module C, and the second relay device B is electrically connected to the steering wheel lock module D; specifically, the relay plug 100 in the first relay device A is plugged and electrically connected to the socket 300, the socket 300 in the first relay device A is electrically connected to the anti-theft alarm in the anti-theft alarm module C, and the relay 25 in the first relay device A can control the opening and closing of the anti-theft alarm; the relay plug 100 in the second relay device B is plugged and electrically connected to the socket 300, the socket 300 in the second relay device B is electrically connected to the steering wheel lock in the steering wheel lock module D, and the relay 25 in the second relay device B can control the opening and closing of the steering wheel lock. For the specific structures and working principles of the anti-theft alarm module C and the steering wheel lock module D, reference can be made to the prior art and will not be elaborated here.

[0063] When the relay plug 100 in the first relay device A is separated from the socket 300, the disassembly detection module 4 in the first relay device A is triggered. At this time, in addition to sending a disassembly alarm message to the cloud platform 6 through the remote communication module 22, the control module 24 in the first relay device A also sends a disassembly alarm message to the control module 24 in the second relay device B through the short-range communication module 29 (specifically, the first relay device A and the second relay device B transmit the disassembly alarm message through their short-range communication modules 29). After receiving the disassembly alarm message, the control module 24 in the second relay device B controls the relay 25 in the second relay device B to close, thereby locking the steering wheel lock in the steering wheel lock module D and realizing the automatic interlocking anti-theft function.

[0064] Specifically, when criminals steal a vehicle, after they break into the vehicle, they will remove the relay connected to the anti-theft alarm module C, thus rendering the anti-theft alarm module C of the vehicle ineffective and unable to perform the alarm function (after the anti-theft alarm module C fails, the vehicle cannot execute functions such as sound and light warnings). In this embodiment, the first relay device A and the second relay device B are interlocked. When the first relay device A is disassembled, the second relay device B automatically closes, causing the steering wheel lock in the steering wheel lock module D to automatically lock, making the vehicle unable to be driven in a short period of time, thereby increasing the probability of the vehicle owner retrieving the vehicle and reducing the risk of the vehicle being lost.

[0065] In other embodiments, the above relay assembly can also be applied to other scenarios.

[0066] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A relay assembly, characterized in that: It comprises a relay plug, a socket and a disassembly detection module, wherein the relay plug is plugged and matched with the socket to realize electrical connection between the two; the relay plug comprises a housing and a circuit module arranged in the housing, wherein the circuit module comprises a circuit board, a remote communication module, a positioning module, a control module and a relay, wherein the remote communication module, the positioning module, the control module and the relay are all arranged on the circuit board and are all electrically connected to the circuit board, and the remote communication module, the positioning module and the relay are all electrically connected to the control module; The disassembly detection module is arranged on the relay plug and / or the socket, the disassembly detection module is electrically connected to the circuit board, and the disassembly detection module is electrically connected to the control module; the disassembly detection module is used to trigger and send an electrical signal to the control module after the relay plug is separated from the socket, and the control module sends a disassembly alarm message to the cloud platform through the remote communication module after receiving the electrical signal.

2. The relay assembly according to claim 1, wherein: A switch assembly is provided on the circuit board, the disassembly detection module is electrically connected to the circuit board through the switch assembly, and the switch assembly is electrically signal connected to the control module; the control module is used to control the opening and closing of the switch assembly to connect or disconnect the disassembly detection module to the circuit board.

3. The relay assembly according to claim 1, wherein: The disassembly detection module includes a light sensor and a light guide; the light sensor is arranged on the circuit board and electrically connected to the circuit board, and the light sensor is connected to the control module by electrical signals; a housing hole is arranged on the shell wall of the shell, the housing hole penetrates the shell wall of the shell, the housing hole is arranged corresponding to the light sensor, and the light guide is arranged in the housing hole; When the relay plug is plugged into the socket, the side of the housing where the accommodating hole is provided abuts against the socket; when the relay plug is separated from the socket, the optical sensor can convert the optical signal into an electrical signal after receiving external light and send it to the control module.

4. The relay assembly according to claim 1, wherein: The disassembly detection module includes a Hall sensor and a magnetic block; the Hall sensor is arranged on the circuit board and electrically connected to the circuit board, and the Hall sensor is connected to the control module by electrical signals; the magnetic block is arranged on the socket; When the relay plug is plugged into the socket, the Hall sensor and the magnetic block are close to each other and the distance between them is within a preset range; when the relay plug is separated from the socket, the Hall sensor and the magnetic block are far away from each other and the distance between them exceeds the preset range, and the Hall sensor generates an electrical signal and sends it to the control module.

5. The relay assembly according to claim 1, wherein: The circuit board includes a first sub-circuit board, a second sub-circuit board, a third sub-circuit board and a fourth sub-circuit board, and an L-shaped support plate is provided in the shell, and the support plate includes a first plate portion and a second plate portion that are integrally connected; the first sub-circuit board and the fourth sub-circuit board are arranged horizontally, and the second sub-circuit board, the third sub-circuit board and the support plate are arranged vertically; the fourth sub-circuit board is arranged relative to the first sub-circuit board at an interval up and down, and the fourth sub-circuit board is located above the first sub-circuit board; the second sub-circuit board, the third sub-circuit board and the support plate are all located between the fourth sub-circuit board and the first sub-circuit board, the second sub-circuit board is arranged relative to the first plate portion at an interval, and the third sub-circuit board is arranged relative to the second plate portion at an interval, the first sub-circuit board, the second sub-circuit board, the third sub-circuit board, the fourth sub-circuit board and the support plate are arranged to form a cubic structure and the four sub-circuit boards are enclosed to form a accommodating cavity; the second sub-circuit board, the third sub-circuit board and the fourth sub-circuit board are all electrically connected to the first sub-circuit board; The circuit module also includes a battery and a positioning antenna. The battery and the relay are both arranged on the upper surface of the first sub-circuit board and are electrically connected to the first sub-circuit board. The battery and the relay are both located in the accommodating cavity. The positioning antenna is arranged on the upper surface of the fourth sub-circuit board and is electrically connected to the fourth sub-circuit board. The positioning antenna is electrically connected to the positioning module.

6. The relay assembly according to claim 5, characterized in that The support plate is provided with a limiting portion, and the limiting portion is located in the accommodating cavity; the limiting portion and the relay are enclosed to form a limiting groove, and the battery is arranged in the limiting groove.

7. The relay assembly according to claim 5, characterized in that The shell includes a main shell and a bottom cover connected to each other, and a positioning groove is provided on the upper surface of the bottom cover. The first sub-circuit board is arranged in the positioning groove, and the second sub-circuit board, the third sub-circuit board, the fourth sub-circuit board and the support plate are all arranged in the main shell; the second sub-circuit board, the third sub-circuit board and the support plate are all fixed to the first sub-circuit board, and the fourth sub-circuit board is fixed to the support plate.

8. The relay assembly according to claim 1, wherein: The circuit module further includes an interference signal detection module, which is disposed on the circuit board and electrically connected to the circuit board, and is electrically connected to the control module, and is used to detect the intensity value of the interference signal around the relay assembly; When the interference signal detection module detects that the strength value of the interference signal reaches a first preset value, the control module sends a first-level shielding warning message to the cloud platform through the remote communication module; When the interference signal detection module detects that the strength value of the interference signal reaches a second preset value, the control module sends a second-level shielding warning message to the cloud platform through the remote communication module; Among them, the second preset value is greater than the first preset value, and the first preset value and the second preset value are both less than a threshold; the threshold is the strength value of the interference signal when the remote communication module and the cloud platform cannot communicate remotely.

9. The relay assembly according to claim 1, wherein: The circuit module also includes a short-range communication module, which is arranged on the circuit board and electrically connected to the circuit board, and the short-range communication module is electrically connected to the control module; the short-range communication module is used to wirelessly communicate with the short-range communication module in an external remote control device and / or other relay components.

10. A vehicle anti-theft safety system, characterized in that: The invention comprises a first relay device, a second relay device, an anti-theft alarm module and a steering wheel lock module, wherein the first relay device and the second relay device are both relay assemblies according to claim 9; the first relay device is electrically connected to the anti-theft alarm module, and the second relay device is electrically connected to the steering wheel lock module; When the relay plug in the first relay device is separated from the socket, the control module in the first relay device sends a disassembly alarm message to the control module in the second relay device through the short-range communication module. After receiving the disassembly alarm message, the control module in the second relay device controls the relay in the second relay device to close, thereby locking the steering wheel lock in the steering wheel lock module.

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