Network security system isolation device and use method thereof

Abstract

The invention discloses a network security system isolation device and a use method thereof.The network security system isolation device comprises a protection assembly, the protection assembly comprises a shell and a cover plate, the cover plate is installed on the front face of the shell, a fixing assembly is installed on the front face of the cover plate, and the fixing assembly comprises a supporting plate, a through groove, a limiting block, a sliding groove, a spring, a connecting plate and a threaded hole; the threaded holes are formed in the front ends of the two sides of the shell, the through groove is formed in the surface of the supporting plate, and limiting blocks are arranged at the upper end and the lower end of an inner cavity of the through groove. By arranging the supporting plate, the through groove, the limiting block, the sliding groove, the spring, the connecting plate and the threaded hole, the effect of fixing the connecting wire harness is achieved, the wire harness can be clamped through cooperation of the through groove, the limiting block, the sliding groove and the spring, and therefore the situation that the wire harness is wound in a mess, and a connector falls off can be prevented; and the use stability of the network isolator is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of network security isolation equipment, and in particular to a network security system isolation device and a method for using the same. Background Art

[0002] Facing the emergence of new network attack methods and the special security needs of high-security networks, a network security technology with a new security protection concept, network isolation technology, came into being. The goal of network isolation technology is to ensure the isolation of harmful attacks and complete the secure exchange of data between networks outside the trusted network and under the premise of ensuring that the information inside the trusted network is not leaked. Network isolation technology is developed on the basis of the original security technology. It makes up for the shortcomings of the original security technology and highlights its own advantages.

[0003] The so-called network isolation technology refers to the exchange of information and sharing of resources between two or more computers or networks on the basis of disconnection. In other words, network isolation technology can not only physically isolate two networks, but also exchange data in a secure network environment. The main goal of network isolation technology is to isolate harmful network security threats to ensure that data information can interact securely within a trusted network. At present, general network isolation technologies are based on access control ideas and physical isolation, and define relevant constraints and rules to ensure the security strength of the network.

[0004] According to the Chinese patent application number: 202420253341.9, a network security physical isolation system and device are disclosed, including a main control chip; a data acquisition module; an alarm module, connected to the main control chip through an SPI communication interface; a communication module, connected to the main control chip through an SPI communication interface; a telemetry module, a telesignaling module and a remote control module, connected to the main control chip through a GPIO interface, and the telemetry module and the telesignaling module are connected to the communication module through an RS485 communication interface, and the remote control module is connected to the communication module through an SPI communication interface. The telemetry module can transmit the operating status information of the isolation device to the control terminal through the communication module in real time, and multiple devices can monitor the operating status to ensure that the operating status can be obtained remotely, and then ensure that the technicians can discover faults and intrusion information in the first time. Finally, through the cooperation of the telesignaling module and the remote control module with the communication module, the control terminal can remotely control the operation of the isolation device, which can effectively reduce data loss and damage to other computers or network segments;

[0005] The existing technology effectively solves certain defects in the network security isolation system. Cloud platform managers and mobile terminal holders can only monitor the operating status of the network gateway equipment in real time. If a host or network segment is invaded or a fault occurs, only the administrator can perform operation and control. If the administrator does not handle it in time or fails to discover the intrusion, the attacked network cannot be cut off in time or the fault cannot be handled in time, the network of the entire system may become paralyzed or data may be lost. It has the advantage of being able to monitor the operating status of multiple devices to ensure that the operating status can be obtained remotely, and then ensure that technical personnel can discover faults and intrusion information at the first time. However, this type of network isolation device needs to be connected through multiple sets of connectors when in use, which makes the wiring harness more, and the wiring harness and connectors are not fixed, which can easily cause the wiring harness to be entangled, and the connectors and interfaces are prone to fall off, thereby affecting normal use. Summary of the invention

[0006] The object of the present invention is to provide a network security system isolation device and a method of using the same, which has the advantage of being able to fix the wiring harness, thereby preventing the connector from falling off, and solves the problem that the network isolation device needs to be connected through multiple sets of connectors when in use, resulting in a large number of wiring harnesses, and the wiring harnesses and connectors are not fixed, which easily causes the wiring harnesses to be entangled, and the connectors and interfaces are easily separated, thereby affecting normal use.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a network security system isolation device, comprising a protective component, the protective component comprising an outer shell and a cover plate, the cover plate is installed on the front side of the outer shell, and a fixing component is installed on the front side of the cover plate, the fixing component comprises a support plate, a through slot, a limit block, a slide slot, a spring, a connecting plate and a threaded hole, the threaded hole is opened at the front ends of both sides of the outer shell, the through slot is opened on the surface of the supporting plate, the upper and lower ends of the inner cavity of the through slot are both provided with limit blocks, the top and bottom of the inner cavity of the through slot are both provided with slide slots, one end of the limit block extends to the inner cavity of the slide slot and is slidably connected to the inner cavity of the slide slot, one end of the spring is fixedly connected to the inner wall of the slide slot, the other end of the spring is fixedly connected to the limit block, the fixing component is used to fix the connector wiring harness, one end of the connecting plate is fixedly connected to the support plate, and the other end of the connecting plate is threadedly connected to the inner cavity of the threaded hole by a bolt.

[0008] Preferably, a module assembly is installed in the inner cavity of the shell, and the module assembly is used to ensure network security.

[0009] Preferably, a bottom plate is installed at the bottom of the inner cavity of the shell, the module assembly is fixed to the surface of the bottom plate, and support pads are fixedly connected around the bottom of the bottom plate.

[0010] Preferably, the cover plate and the bottom plate are both threadedly connected to the outer shell by bolts, ventilation slots are provided on both sides and the back of the outer shell, and a fan is also installed on the back of the outer shell, and the fan and the ventilation slots are used for ventilation and heat dissipation.

[0011] Preferably, the module assembly includes a main control chip, a communication module, a power module, a data acquisition module, a telemetry module, a telesignaling module and a remote control module, and the main control chip, communication module, power module, data acquisition module, telemetry module, telesignaling module and remote control module are all integrated on a PCB board.

[0012] Preferably, the communication module is located at the front end of the PCB board surface and is connected to the cover plate, the power module is located at the rear end of the PCB board surface and is connected to the back of the shell, the communication module is used to connect the connector, the power module is used to connect the power cord, the communication module consists of a network communication port, an RS485 communication interface and an SPI communication interface, and the network communication port is divided into an intranet output / input port and an extranet output / input port.

[0013] Preferably, the main control chip adopts a Virtex-7690T model FPGA chip, which integrates a network intrusion detection unit and can detect network intrusion. The data acquisition module collects network-related data, the telemetry module is used to transmit operation status in real time, the telesignaling module is used to receive main control chip information, and the remote control module is used to remotely control the disconnection of the attacked network segment.

[0014] Preferably, the method of use comprises the following steps:

[0015] S1. First, the module assembly is fixed to the surface of the base plate by bolts. The module assembly integrates the main control chip, communication module, power module, data acquisition module, telemetry module, telesignaling module and remote control module through the PCB board. The network security is detected and isolated through the module assembly. The base plate is installed on the top of the inner cavity of the shell and fixed by bolts. Then, the cover plate is fixed to the front of the shell by bolts, and the inner cavity of the shell is closed by the cover plate, so as to provide protection for the module assembly. The ventilation slot is used to input fresh air into the inner cavity of the shell. The centrifugal force generated by the high-speed rotation of the fan can discharge the heat generated by the module assembly, so as to ensure the stable operation of the module assembly.

[0016] S2. Then, the connecting plate and the housing are fixed by bolts, so that the supporting plate and the housing can be connected. Then, the ports are connected in sequence, and the two limit blocks are moved upward and downward to make the limit blocks move toward the inner cavity of the slide slot. When the limit blocks move toward the inner cavity of the slide slot, they squeeze the spring, causing the spring to deform under force. Then, the wiring heads are passed through the through slots in sequence and connected to the corresponding interfaces. The limit blocks are released, and the restoring elastic force of the springs pushes the limit blocks to move toward the outside of the slide slot, so that the two limit blocks can clamp and fix the wiring harness, thereby ensuring the stability of the connector connection.

[0017] S3. The external power cord is plugged into the power module, and power is supplied through the power module. Then, the input and output interfaces of the external network and the internal network are respectively connected to the internal network output / input port and the external network output / input port on the surface of the communication module. The external network is connected to the network isolator through a router, and the network isolator is connected to the internal terminal through a switch. The internal / external network data is collected through the data acquisition module and sent to the main control chip for analysis and processing. The telemetry module obtains the detection information in real time and sends it to the host computer or the central monitoring system through the communication module. The remote signal module receives the instructions of the main control chip in real time. If an abnormality in network security is detected, the corresponding network can be disconnected in time through the remote control module.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention achieves the effect of fixing the connection wire harness by arranging a support plate, a through groove, a limit block, a slide groove, a spring, a connecting plate and a threaded hole. The wire harness can be clamped by cooperating with the through groove, the limit block, the slide groove and the spring, thereby preventing the wire harness from becoming tangled and messy, causing the connector to fall off, and effectively improving the stability of the network isolator.

[0020] 2. The present invention provides protection for the module components by setting up protection components, thereby preventing the module components from being worn out by external environmental factors, thereby effectively improving the stability of the use of the module components. By setting up the module components, the network data can be detected and isolated, thereby ensuring the security of the network operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the protective component and the fixing component of the present invention in a separated state;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention in an upward-looking state;

[0024] Figure 4 It is a schematic diagram of the main structure of the fixing assembly of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection state of the base plate and the module assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the system flow of the present invention.

[0027] In the figure: 1. Protection component; 101. Shell; 102. Cover plate; 103. Bottom plate; 104. Support pad; 105. Ventilation slot; 106. Fan; 2. Fixing component; 201. Support plate; 202. Through slot; 203. Limit block; 204. Slide slot; 205. Spring; 206. Connecting plate; 207. Threaded hole; 3. Module component; 301. Main control chip; 302. Communication module; 303. Power module; 304. Data acquisition module; 305. Telemetry module; 306. Remote signal module; 307. Remote control module. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1-6 As shown, it is the first embodiment of the present invention, which provides a network security system isolation device, including a protection component 1, the protection component 1 includes a shell 101 and a cover plate 102, the cover plate 102 is installed on the front of the shell 101, and the front of the cover plate 102 is installed with a fixing component 2, the fixing component 2 includes a support plate 201, a through groove 202, a limit block 203, a slide groove 204, a spring 205, a connecting plate 206 and a threaded hole 207, the threaded hole 207 is opened at the front end of both sides of the shell 101, the through groove 202 is opened on the surface of the support plate 201, and the through groove Limiting blocks 203 are provided at the upper and lower ends of the inner cavity 202, and sliding grooves 204 are provided at the top and bottom of the inner cavity of the through groove 202. One end of the limiting block 203 extends to the inner cavity of the sliding groove 204 and is slidably connected to the inner cavity of the sliding groove 204. One end of the spring 205 is fixedly connected to the inner wall of the sliding groove 204, and the other end of the spring 205 is fixedly connected to the limiting block 203. The fixing component 2 is used to fix the connector wiring harness, one end of the connecting plate 206 is fixedly connected to the support plate 201, and the other end of the connecting plate 206 is threadedly connected to the inner cavity of the threaded hole 207 through a bolt.

[0031] like Figure 1-6 As shown, the connecting plate 206 is fixed to the housing 101 by bolts, so that the support plate 201 can be connected to the housing 101, and then the ports are connected in turn, and the two limit blocks 203 are moved to the upper and lower ends to make the limit blocks 203 move toward the inner cavity of the slide groove 204. When the limit blocks 203 move toward the inner cavity of the slide groove 204, they squeeze the spring 205, causing the spring 205 to deform under the force, and then the wiring heads are passed through the through groove 202 in turn and connected to the corresponding interfaces, and the limit blocks 203 are released. The restoring elastic force of the spring 205 pushes the limit blocks 203 to move to the outside of the slide groove 204, so that the two limit blocks 203 can clamp and fix the wiring harness, thereby ensuring the stability of the connector connection.

[0032] Example 2

[0033] Reference Figure 1-3 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0034] In this embodiment, a bottom plate 103 is installed at the bottom of the inner cavity of the housing 101 , the module assembly 3 is fixed to the surface of the bottom plate 103 , and support pads 104 are fixedly connected around the bottom of the bottom plate 103 .

[0035] The cover plate 102 and the bottom plate 103 are both threadedly connected to the housing 101 by bolts. Ventilation slots 105 are provided on both sides and the back of the housing 101. A fan 106 is also installed on the back of the housing 101. The fan 106 and the ventilation slots 105 are used for ventilation and heat dissipation.

[0036] like Figure 1-3 As shown, the module assembly 3 is fixed to the surface of the base plate 103 by bolts, the base plate 103 is installed on the top of the inner cavity of the shell 101, and the base plate 103 is fixed by bolts, and then the cover plate 102 is fixed to the front of the shell 101 by bolts, and the inner cavity of the shell 101 is closed by the cover plate 102, thereby providing protection for the module assembly 3, the ventilation slot 105 is used to input fresh air into the inner cavity of the shell 101, and the centrifugal force generated by the high-speed rotation of the fan 106 can discharge the heat generated by the module assembly 3, thereby ensuring the stable operation of the module assembly 3, and the support pad 104 is used to improve the support.

[0037] Example 3

[0038] Reference Figure 2 , 3 , 5 and 6 are the third embodiment of the present invention, which is based on the first two embodiments.

[0039] In this embodiment, a module assembly 3 is installed in the inner cavity of the housing 101, and the module assembly 3 is used to ensure network security.

[0040] The module component 3 includes a main control chip 301, a communication module 302, a power module 303, a data acquisition module 304, a telemetry module 305, a remote signal module 306 and a remote control module 307. The main control chip 301, the communication module 302, the power module 303, the data acquisition module 304, the telemetry module 305, the remote signal module 306 and the remote control module 307 are all integrated on a PCB board.

[0041] The communication module 302 is located at the front end of the PCB board surface and is connected to the cover plate 102. The power module 303 is located at the rear end of the PCB board surface and is connected to the back of the shell 101. The communication module 302 is used to connect the connector, and the power module 303 is used to connect the power cord. The communication module 302 consists of a network communication port, an RS485 communication interface, and an SPI communication interface, and the network communication port is divided into an intranet output / input port and an extranet output / input port.

[0042] The main control chip 301 adopts the Virtex-7690T model FPGA chip, which integrates a network intrusion detection unit and can detect network intrusions. The data acquisition module 304 collects network-related data, the telemetry module 305 is used to transmit the operation status in real time, the remote signal module 306 is used to receive information from the main control chip 301, and the remote control module 307 is used to remotely control the disconnection of the attacked network segment.

[0043] like Figure 2 , 3, 5 and 6, the module component 3 integrates the main control chip 301, the communication module 302, the power module 303, the data acquisition module 304, the telemetry module 305, the remote signal module 306 and the remote control module 307 through the PCB board, and the network security is detected and isolated through the module component 3, the external power line is plugged into the power module 303, and then the input and output interfaces of the external network and the internal network are respectively connected to the internal network output / input port and the external network output / input port on the surface of the communication module 302, the external network is connected to the network isolator through a router, and the network isolator is connected to the internal terminal through a switch, and the internal network / extranet data is collected through the data acquisition module 304 and sent to the main control chip 301 for analysis and processing, the telemetry module 305 obtains the detection information in real time and sends it to the host computer or the central monitoring system through the communication module 302, and the remote signal Module 306 receives instructions from the main control chip 301 in real time. If an abnormality in network security is detected, the corresponding network can be disconnected in time through the remote control module 307. The data acquisition module 304, the telemetry module 305, the remote signal module 306 and the remote control module 307 are connected to the main control chip 301 and are also connected to the communication module 302. The power module 303 is connected to the main control chip 301 and is connected to an external power supply through the power module 303. The telemetry module 305 is ADAM4000 and has multiple telemetry acquisition interfaces. The remote signal module 306 is GD32F107C8T6 chip and has at least one remote signal input interface for receiving alarm information from the main control chip 301. The remote control module 307 is STM32F103C8T6, including multiple remote control digital output interfaces, which is convenient for remote control of disconnecting the attacked network segment.

[0044] A method for using a network security system isolation device, the method comprising the following steps:

[0045] S1. First, the module assembly 3 is fixed to the surface of the bottom plate 103 by bolts. The module assembly 3 integrates the main control chip 301, the communication module 302, the power module 303, the data acquisition module 304, the telemetry module 305, the remote signal module 306 and the remote control module 307 through the PCB board. The network security is detected and isolated by the module assembly 3. The bottom plate 103 is installed on the top of the inner cavity of the shell 101 and fixed by bolts. Then, the cover plate 102 is fixed to the front of the shell 101 by bolts, and the inner cavity of the shell 101 is closed by the cover plate 102, so as to provide protection for the module assembly 3. The ventilation slot 105 is used to input fresh air into the inner cavity of the shell 101. The centrifugal force generated by the high-speed rotation of the fan 106 can discharge the heat generated by the module assembly 3, so as to ensure the stable operation of the module assembly 3.

[0046] S2. Then, the connecting plate 206 is fixed to the housing 101 by bolts, so that the supporting plate 201 can be connected to the housing 101. Then, the ports are connected in sequence, and the two limit blocks 203 are moved to the upper and lower ends to make the limit blocks 203 move toward the inner cavity of the slide groove 204. When the limit blocks 203 move toward the inner cavity of the slide groove 204, they squeeze the spring 205, so that the spring 205 is deformed by force. Then, the wiring heads are passed through the through groove 202 in sequence and connected to the corresponding interfaces. The limit blocks 203 are released, and the restoring elastic force of the spring 205 pushes the limit blocks 203 to move to the outside of the slide groove 204, so that the two limit blocks 203 can clamp and fix the wiring harness, thereby ensuring the stability of the connector connection.

[0047] S3, the external power cord is plugged into the power module 303, and power is supplied through the power module 303. Then, the input and output interfaces of the external network and the internal network are respectively connected to the internal network output / input port and the external network output / input port on the surface of the communication module 302. The external network is connected to the network isolator through a router, and the network isolator is connected to the internal terminal through a switch. The internal network / external network data is collected through the data acquisition module 304 and sent to the main control chip 301 for analysis and processing. The telemetry module 305 obtains the detection information in real time and sends it to the host computer or the central monitoring system through the communication module 302. The remote signal module 306 receives the command of the main control chip 301 in real time. If an abnormality in network security is detected, the corresponding network can be disconnected in time through the remote control module 307.

[0048] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A network security system isolation device, comprising a protection component (1), characterized in that: The protective component (1) comprises a housing (101) and a cover plate (102), wherein the cover plate (102) is mounted on the front side of the housing (101), and a fixing component (2) is mounted on the front side of the cover plate (102), wherein the fixing component (2) comprises a support plate (201), a through slot (202), a limit block (203), a slide slot (204), a spring (205), a connecting plate (206) and a threaded hole (207), wherein the threaded hole (207) is provided at the front ends of both sides of the housing (101), the through slot (202) is provided on the surface of the support plate (201), and the upper end and the lower end of the inner cavity of the through slot (202) are both provided with a limit block. The limiting block (203) comprises a guide groove (204) at the top and the bottom of the inner cavity of the through groove (202), one end of the limiting block (203) extends to the inner cavity of the guide groove (204) and is slidably connected to the inner cavity of the guide groove (204), one end of the spring (205) is fixedly connected to the inner wall of the guide groove (204), the other end of the spring (205) is fixedly connected to the limiting block (203), the fixing assembly (2) is used to fix the connector harness, one end of the connecting plate (206) is fixedly connected to the support plate (201), and the other end of the connecting plate (206) is threadedly connected to the inner cavity of the threaded hole (207) through a bolt.

2. A network security system isolation device according to claim 1, characterized in that: A module assembly (3) is installed in the inner cavity of the housing (101), and the module assembly (3) is used to ensure network security.

3. A network security system isolation device according to claim 2, characterized in that: A bottom plate (103) is installed at the bottom of the inner cavity of the shell (101), the module assembly (3) is fixed to the surface of the bottom plate (103), and support pads (104) are fixedly connected around the bottom of the bottom plate (103).

4. A network security system isolation device according to claim 1, characterized in that: The cover plate (102) and the bottom plate (103) are both threadedly connected to the outer shell (101) via bolts; ventilation slots (105) are provided on both sides and the back of the outer shell (101); a fan (106) is also installed on the back of the outer shell (101); the fan (106) and the ventilation slots (105) are used for ventilation and heat dissipation.

5. A network security system isolation device according to claim 3, characterized in that: The module assembly (3) comprises a main control chip (301), a communication module (302), a power module (303), a data acquisition module (304), a telemetry module (305), a remote signal module (306) and a remote control module (307); the main control chip (301), the communication module (302), the power module (303), the data acquisition module (304), the telemetry module (305), the remote signal module (306) and the remote control module (307) are all integrated on a PCB board.

6. A network security system isolation device according to claim 5, characterized in that: The communication module (302) is located at the front end of the surface of the PCB board and is connected to the cover plate (102); the power module (303) is located at the rear end of the surface of the PCB board and is connected to the back of the housing (101); the communication module (302) is used to connect the connector; the power module (303) is used to connect the power cord; the communication module (302) is composed of a network communication port, an RS485 communication interface and an SPI communication interface, and the network communication port is divided into an intranet output / input port and an extranet output / input port.

7. A network security system isolation device according to claim 5, characterized in that: The main control chip (301) adopts a Virtex-7690T FPGA chip, which integrates a network intrusion detection unit and can detect network intrusion. The data acquisition module (304) collects network-related data. The telemetry module (305) is used to transmit the operation status in real time. The remote signaling module (306) is used to receive information from the main control chip (301). The remote control module (307) is used to remotely control the disconnection of the attacked network segment.

8. The method for using a network security system isolation device according to any one of claims 1 to 7, characterized in that: The method of use includes the following steps: S1. First, the module assembly (3) is fixed to the surface of the base plate (103) by bolts. The module assembly (3) integrates the main control chip (301), the communication module (302), the power module (303), the data acquisition module (304), the telemetry module (305), the telesignaling module (306) and the remote control module (307) through the PCB board. The network security is detected and isolated by the module assembly (3). The base plate (103) is installed on the top of the inner cavity of the shell (101) and fixed by bolts. Then, the cover plate (102) is fixed to the front of the shell (101) by bolts. The inner cavity of the shell (101) is closed by the cover plate (102), thereby providing protection for the module assembly (3). The ventilation slot (105) is used to input fresh air into the inner cavity of the shell (101). The centrifugal force generated by the high-speed rotation of the fan (106) can discharge the heat generated by the module assembly (3), thereby ensuring the stable operation of the module assembly (3); S2, then fix the connecting plate (206) and the housing (101) by bolts, so that the support plate (201) and the housing (101) can be connected, and then the ports are connected in sequence, and the two limit blocks (203) are moved to the upper and lower ends, so that the limit blocks (203) move toward the inner cavity of the slide groove (204), and the limit blocks (203) move toward the inner cavity of the slide groove (204) while squeezing the spring (205), so that the spring (205) is deformed by force, and then the wiring heads are passed through the through groove (202) in sequence and connected with the corresponding interfaces, and the limit blocks (203) are released, and the return elastic force of the spring (205) pushes the limit blocks (203) to move to the outside of the slide groove (204), so that the two limit blocks (203) can clamp and fix the wiring harness, thereby ensuring the stability of the connector connection; S3, the external power line is plugged into the power module (303), and power is supplied through the power module (303), and then the input and output interfaces of the external network and the internal network are respectively connected to the internal network output / input port and the external network output / input port on the surface of the communication module (302), the external network is connected to the network isolator through a router, and the network isolator is connected to the internal terminal through a switch, the internal network / external network data is collected through the data acquisition module (304), and sent to the main control chip (301) for analysis and processing, the telemetry module (305) obtains the detection information in real time and sends it to the upper computer or the central monitoring system through the communication module (302), the remote signal module (306) receives the command of the main control chip (301) in real time, and if it is detected that the network security is abnormal, the corresponding network can be disconnected in time through the remote control module (307).

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