DSP-Based Multi-Protocol Conversion Module for Network Cameras

Abstract

The present invention provides a multi-protocol conversion module for a network camera based on DSP, which solves problems such as internal heat dissipation of the protocol converter. It includes a converter main body, and a DSP processing module is arranged inside the converter main body. The DSP processing module is equipped with a port module and a protocol processing module. A board support mechanism and a circuit layout mechanism are arranged inside the converter main body, and an active heat dissipation mechanism is arranged between the board support mechanism and the circuit layout mechanism and the converter main body. The present invention has the advantages of good heat dissipation effect and stable structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of protocol conversion devices, and particularly relates to a multi-protocol conversion module for network cameras based on DSP. Background Art

[0002] In modern society, network cameras are widely used in monitoring, fire protection, security and other systems in various environments such as public facilities, transportation, and power. The specifications, sampling rates, resolutions, interfaces, and data protocols of camera devices produced by each manufacturer are different. The integrated application corresponding to different systems will increase the design difficulty and development cost. Currently, the data compression protocols of network cameras mostly adopt one of MJPEG, MPEG-4, H.264, HEVC, etc. The device interface is single, and the data format can only be limited to one of AVI, MP4, MPG, DAV, etc., resulting in complex and costly system integration design. In addition, during use, the synchronous transmission of multiple interfaces causes an increase in its power, and the heat dissipation of the conventional protocol converter structure configuration is poor, resulting in a decrease in its working stability.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a multi-protocol conversion gateway [201020544025.5], which includes an interface unit that establishes connections with a data sending device and a data receiving device, a protocol type judgment and binding unit that judges the source communication protocol type of the data sending device and the target communication protocol type of the data receiving device and converts and binds the above two protocols, and a data conversion unit that converts the source communication protocol data into the target communication protocol data according to the processing result of the protocol type judgment and binding unit; the data conversion unit is respectively connected to the interface unit and the protocol type judgment and binding unit.

[0004] The above solution solves the problem of single device interface to a certain extent, but there are still many deficiencies in this solution, such as poor heat dissipation effect and other problems. Summary of the Invention

[0005] The object of the present invention is to provide a multi-protocol conversion module for network cameras based on DSP with reasonable design and good heat dissipation effect for the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: This multi-protocol conversion module for a network camera based on DSP includes a converter main body. Inside the converter main body, there is a DSP processing module, and the DSP processing module is equipped with a port module and a protocol processing module. Inside the converter main body, there is a board support mechanism and a circuit layout mechanism, and an active heat dissipation mechanism is provided between the board support mechanism and the circuit layout mechanism and the converter main body. Inside the converter main body, the circuit board and the wires are regularly arranged through the board support mechanism and the circuit layout mechanism, and in cooperation with the active heat dissipation mechanism, the heat is guided to dissipate quickly, having a good heat dissipation effect.

[0007] In the above-mentioned multi-protocol conversion module for a network camera based on DSP, the converter main body includes a bottom plate and a housing connected to the upper end of the bottom plate through a locking mechanism, and a power supply installation mechanism is provided between the bottom plate and the housing. The converter main body is assembled by the bottom plate and the housing, and the internal power supply installation mechanism relatively isolates the internal power supply, ensuring the working safety.

[0008] In the above-mentioned multi-protocol conversion module for a network camera based on DSP, the power supply installation mechanism includes a power supply installation groove provided on the bottom plate. The power supply installation groove protrudes downward relative to the bottom plate. A partition plate with its edge tightly fixed to the inner side of the housing is installed at the upper end of the bottom plate. A positioning mechanism is provided between the housing, the bottom plate, and the partition plate; the positioning mechanism includes positioning columns vertically arranged relative to the bottom plate, positioning holes for the positioning columns to pass through are opened on the partition plate, corresponding threaded holes are provided between the upper end of the housing and the upper end of the positioning column, and a reinforcing rib is provided between the positioning column and the bottom plate. The positioning mechanism in the power supply installation mechanism ensures the fixed position of the partition plate.

[0009] In the above-mentioned multi-protocol conversion module for a network camera based on DSP, the locking mechanism includes a locking strip provided at the edge of the bottom plate, a buckle provided on the inner side of the lower end of the housing and buckled with the locking groove on the outer side of the locking strip, a buckle plate corresponding to the buckle is provided on the inner side of the lower end of the housing, and the buckle plate is attached to the inner side of the locking strip and a corrugated rib is provided between them. The locking mechanism realizes the buckling of the bottom plate and the housing, and the rib has a certain self-locking function.

[0010] In the above-mentioned multi-protocol conversion module for a network camera based on DSP, the board support mechanism includes a support box body installed inside the converter main body. Inside the support box body, there is a support block connected to the lower end of the circuit board. A wiring hole connected to the internal circuit board is provided on the side of the support box body, and a shielding layer is coated on the inner side of the support box body. The board support mechanism is used to fix the circuit board and reduce external interference.

[0011] In the above-mentioned multi-protocol conversion module for network cameras based on DSP, the wire arrangement mechanism is disposed in the wire slot on the inner side of the converter body. Elastic sealing strips are provided on both sides of the upper opening of the wire slot. The wire slot is arranged between the wire arranging boards. An adjustment slot for the sliding insertion of the wire arranging boards is provided on the inner side of the converter body. The wire slot is arranged in a surrounding manner relative to the support box body. The wire arrangement mechanism guides the wires to be evenly arranged, facilitating external wiring.

[0012] In the above-mentioned multi-protocol conversion module for network cameras based on DSP, the active heat dissipation mechanism includes a cooling fan installed on the inner side of the converter body. The cooling fan is arranged in a spiral-shaped cooling air cavity, and the cooling air cavity is communicated with a cooling box body installed in the converter body. The cooling air cavity is connected with an air pipe extending into the interior of the cooling box body. The air pipe includes a main pipe and branch pipes branched from the main pipe. Vent holes are distributed on the branch pipes. Heat dissipation plates are arranged in the cooling box body to fit the upper and lower ends of the air pipe. The heat dissipation plate includes a main plate body fitting the air pipe and a sub-plate body arranged obliquely relative to the main plate body and in a wavy shape. The gaps between the vent holes of the air pipe and the sub-plate body are opposite. Vent openings are formed on the side of the cooling box body opposite to the gaps between the sub-plate bodies. The heat dissipation plates inside the active heat dissipation mechanism adopt a wavy structure, cooperating with the vein-shaped air pipe, having a high heat dissipation efficiency.

[0013] In the above-mentioned multi-protocol conversion module for network cameras based on DSP, the converter body is connected with a splitter. The port module is installed on the splitter, and the splitter is installed on the back of the converter body; alternatively, the converter body is vertically arranged, and the splitter is symmetrically structured relative to its vertical central plane. The independent splitter is detachable, facilitating the replacement of the port module.

[0014] In the above-mentioned multi-protocol conversion module for network cameras based on DSP, the splitter includes a splitter housing. Plug-in boards for sliding connection with the converter body are provided at the upper and lower ends of the splitter housing. A wiring block is slidably installed inside the splitter housing. The port module is arranged in the wiring block. A data transmission line connecting the wiring block and the converter body is arranged inside the splitter housing. The wiring block has a wiring part and a sliding part. The wiring part is cube-shaped for external wires to be inserted, and the sliding part is disc-shaped with a sliding hole in the center. A sliding rod horizontally arranged and inserted into the sliding hole is provided on the splitter housing. A flipping groove extending to the upper end and allowing the wiring part to pass through and rotate is formed on the side of the splitter housing. A switching mechanism is arranged between the sliding part and the data transmission line. A linkage mechanism for driving the wiring block to rotate is arranged between the wiring block and the splitter housing. The wiring block of the splitter can be flipped to control the on / off of the circuit and data conduction.

[0015] In the above-mentioned DSP-based network camera multi-protocol conversion module, the on-off mechanism includes a wiring socket arranged on the side of the sliding part, a wiring plug corresponding to the wiring socket is arranged inside the wire splitting housing, the wiring plug is telescopically connected to the wire splitting housing and an elastic reset member is arranged between them, the sliding rod is rotatably connected to a switch block arranged on one side of the wiring block, the switch block has a switch handle passing through the flip groove, the switch block is connected to the reset plate arranged on both sides of the wiring plug through a traction line, and a reversing node for limiting the position of the traction line is arranged inside the wire splitting housing; the linkage mechanism includes a driving gear arranged on the opposite side of the switch block and the wiring block, a linkage gear meshing with the driving gear is rotatably installed inside the wire splitting housing, the wiring block has a driven gear ring meshing with the linkage gear on the inside, the wiring block rotates in the opposite direction to the switch block, and a notch is opened on the side of the driving gear close to the switch handle. The on-off mechanism flexibly adjusts the opening and closing of the port module in the wiring block according to needs to ensure data transmission security.

[0016] Compared with the existing technology, the advantages of the present invention are: the converter body has a built-in active heat dissipation module to achieve rapid heat dissipation and ensure its stable operation; the internal lines are arranged regularly to facilitate circuit board wiring and improve assembly efficiency; the splitter can manually control the opening and closing of the port module to ensure data transmission security. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the converter body of the present invention;

[0018] Figure 2 is a schematic structural diagram of the converter body of the present invention from another perspective;

[0019] Figure 3 is a structural cross-sectional view of the converter body of the present invention;

[0020] Figure 4 is a partial cross-sectional view of a converter body of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the active heat dissipation mechanism of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the splitter of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the linkage mechanism of the present invention;

[0024] Figure 8 It is a structural principle diagram of the present invention;

[0025] In the figure, there are converter body 1, DSP processing module 11, port module 12, protocol processing module 13, board support mechanism 14, circuit layout mechanism 15, active heat dissipation mechanism 16, bottom plate 17, outer housing 18, lock mechanism 2, lock bar 21, lock groove 22, buckle 23, buckle plate 24, rib 25, power supply installation mechanism 3, power supply installation slot 31, partition 32, positioning post 33, positioning hole 34, reinforcing rib 35, support box body 4, support block 41, wiring hole 42, wire slot 43, sealing strip 44, wiring board 45, adjustment slot 46, cooling fan 5, cooling air cavity 51, cooling box body 52, main pipeline 53, branch pipeline 54, heat dissipation plate 55, main board body 56, sub-board body 57, ventilation port 58, splitter 6, splitter housing 61, plug-in board 62, wiring block 63, wiring part 64, sliding part 65, sliding rod 66, flipping slot 67, on-off mechanism 7, wiring socket 71, wiring plug 72, elastic reset member 73, on-off block 74, on-off handle 75, traction wire 76, reset board 77, commutation node 78, linkage mechanism 8, driving gear 81, linkage gear 82, driven toothed ring 83, notch part 84. Detailed implementation mode

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and the detailed implementation mode.

[0027] As Figure 1-8 shown, this multi-protocol conversion module for network cameras based on DSP includes a converter body 1. Inside the converter body 1, there is a DSP processing module 11. The DSP processing module 11 is equipped with a port module 12 and a protocol processing module 13. Inside the converter body 1, there is a board support mechanism 14 and a circuit layout mechanism 15. An active heat dissipation mechanism 16 is provided between the board support mechanism 14 and the circuit layout mechanism 15 and the converter body 1. When the converter body 1 is in use, the internal port module 12 makes port connections as needed. The internal protocol processing module 13 and DSP processing module 11 are used to be compatible with the data compression protocol and video output format of network cameras. Its board support mechanism 14 and circuit layout mechanism 15 position and assemble the internal circuit boards and wires, and cooperate with the active heat dissipation mechanism 16 to guide the heat to dissipate quickly.

[0028] Specifically, the converter body 1 includes a bottom plate 17 and an outer housing 18 connected to the upper end of the bottom plate 17 through a lock mechanism 2. A power supply installation mechanism 3 is provided between the bottom plate 17 and the outer housing 18. The bottom plate 17 is closed with the outer housing 18 through the lock mechanism 2. The internal power supply installation mechanism 3 is used to install an independent power supply module to reduce the influence of heat on the power supply.

[0029] In depth, the power supply installation mechanism 3 includes a power supply installation groove 31 provided on the bottom plate 17. The power supply installation groove 31 protrudes downward relative to the bottom plate 17. A partition plate 32 with its edge tightly fixed to the inner side of the outer shell 18 is installed at the upper end of the bottom plate 17. A positioning mechanism is provided between the outer shell 18, the bottom plate 17, and the partition plate 32. The positioning mechanism includes positioning columns 33 vertically arranged relative to the bottom plate 17. Positioning holes 34 for the positioning columns 33 to pass through are formed on the partition plate 32. Corresponding threaded holes are provided between the upper end of the outer shell 18 and the upper end of the positioning columns 33. A reinforcing rib 35 is provided between the positioning columns 33 and the bottom plate 17. In the power supply installation mechanism 3, the power supply installation groove 31 expands the internal installation space of the converter main body 1. Its partition plate 32 closes the power supply installation groove 31. The positioning columns 33 realize the connection and fixation between the outer shell 18 and the bottom plate 17, and are assembled through threaded parts.

[0030] Furthermore, the locking mechanism 2 includes a locking bar 21 provided at the edge of the bottom plate 17. A buckle 23 that is buckled with a locking groove 22 on the outer side of the locking bar 21 is provided on the inner side of the lower end of the outer shell 18. A buckle plate 24 corresponding to the buckle 23 one by one is provided on the inner side of the lower end of the outer shell 18. The buckle plate 24 is attached to the inner side of the locking bar 21, and a corrugated rib 25 is provided therebetween. The outer side of the locking bar 21 faces the inner side of the lower end of the outer shell 18. The buckle plate 24 faces the inner side of the locking bar 21. The rib 25 prevents the buckle plate 24 and the locking bar 21 from slipping off.

[0031] Even further, the board support mechanism 14 includes a support box body 4 installed inside the converter main body 1. A support block 41 connected to the lower end of the circuit board is provided inside the support box body 4. A wiring hole 42 connected to the internal circuit board is provided on the side of the support box body 4. A shielding layer is coated on the inner side of the support box body 4. The support box body 4 of the board support mechanism 14 is used to encapsulate the circuit board, and a wiring hole 42 is left for external wiring.

[0032] In addition, the circuit layout mechanism 15 is provided with a wiring groove 43 inside the converter main body 1. Elastic sealing strips 44 are provided on both sides of the upper opening of the wiring groove 43. The wiring groove 43 is provided between wiring boards 45. An adjustment groove 46 for the wiring boards 45 to slide and plug in is provided inside the converter main body 1. The wiring groove 43 is arranged around the support box body 4. The wiring groove 43 is for pre-assembling the circuits, leaving connectors to connect with corresponding circuit components. Its sealing strips 44 realize the hidden installation of the circuits, and the positions of the wiring boards 45 and the adjustment groove 46 can be adjusted as needed.

[0033] At the same time, the active heat dissipation mechanism 16 includes a heat dissipation fan 5 installed on the inner side of the converter body 1, and the heat dissipation fan 5 is arranged in a spiral heat dissipation air cavity 51. The heat dissipation air cavity 51 is connected to a heat dissipation box body 52 installed in the converter body 1, and the heat dissipation air cavity 51 is connected to a ventilation pipeline extending to the inside of the heat dissipation box body 52; the ventilation pipeline includes a main pipeline 53 and a branch pipeline 54 arranged in a fork from the main pipeline 53, and ventilation holes are distributed on the branch pipeline 54. A heat dissipation plate 55 is provided in the heat dissipation box body 52 and is attached to the upper and lower ends of the ventilation pipeline; the heat dissipation plate 55 includes a main body 56 attached to the ventilation pipeline and a sub-plate body 57 arranged obliquely relative to the main body 56 and in a wavy shape, the ventilation holes of the ventilation pipeline are opposite to the gap between the sub-plate bodies 57, and a ventilation port 58 opposite to the gap between the sub-plate bodies 57 is opened on the side of the heat dissipation box body 52. After the cooling fan 5 is started, air is introduced from the cooling air cavity 51 into the branch pipe 54 and discharged from the vent holes of the branch pipe 54, cooling is achieved during the compression process, and the heat absorbed by the heat sink 55 and conducted to the auxiliary plate body 57 is quickly dissipated.

[0034] It can be seen that the converter body 1 is connected to the splitter 6, the port module 12 is installed on the splitter 6, and the splitter 6 is installed on the back of the converter body 1; or, the converter body 1 is vertically arranged, and the splitter 6 is symmetrical with respect to its vertical center plane. The splitter 6 is installed at the rear end of the converter body 1, and is used for the transfer of the port module 12, and a single group or a double group of expansion port modules 12 are selected according to the needs.

[0035] Obviously, the splitter 6 includes a splitter shell 61, and the upper and lower ends of the splitter shell 61 have a plug-in board 62 that is slidably connected to the converter body 1. A wiring block 63 is slidably installed on the inner side of the splitter shell 61, and the port module 12 is arranged in the wiring block 63. A data transmission line connected between the wiring block 63 and the converter body 1 is arranged in the splitter shell 61. The wiring block 63 has a wiring part 64 and a sliding part 65. The wiring part 64 is cubic and is for external lines to be inserted. The sliding part 65 is disc-shaped and has a sliding hole in the center. The splitter shell 61 is provided with a sliding rod 66 that is horizontally arranged and inserted into the sliding hole. The side of the splitter shell 61 is provided with a flip groove 67 that extends to the upper end and is for the wiring part 64 to pass through and rotate. A switching mechanism 7 is provided between the sliding part 65 and the data transmission line, and a linkage mechanism 8 that drives the wiring block 63 to rotate is provided between the wiring block 63 and the splitter shell 61. Multiple wiring blocks 63 inside the wiring housing 61 are arranged along the same axial direction and can rotate relative to the sliding rod 66. The wiring portion 64 thereof switches between the horizontal and vertical states to achieve connection and disconnection between the sliding portion 65 and the internal circuit of the converter body 1.

[0036] Preferably, the on-off mechanism 7 includes a wiring socket 71 arranged on the side of the sliding portion 65, a wiring plug 72 corresponding to the wiring socket 71 is arranged inside the branching housing 61, the wiring plug 72 is telescopically connected to the branching housing 61 and an elastic reset member 73 is arranged between them, and a switch block 74 arranged on one side of the wiring block 63 is rotatably connected to the sliding rod 66, and the switch block 74 has a switch handle 75 passing through the flip groove 67, and the switch block 74 is connected to the reset plate 77 arranged on both sides of the wiring plug 72 through a pulling line 76. The wiring housing 61 is provided with a reversing node 78 for limiting the position of the traction line 76; the linkage mechanism 8 includes a driving gear 81 arranged on the side opposite to the on-off block 74 and the wiring block 63, and a linkage gear 82 meshing with the driving gear 81 is rotatably installed inside the wiring housing 61. The wiring block 63 has a driven gear ring 83 meshing with the linkage gear 82 on its inner side. The rotation direction of the wiring block 63 is opposite to that of the on-off block 74, and a notch 84 is provided on the side of the driving gear 81 close to the on-off handle 75. The on-off handle 75 is manually flipped, and the on-off block 74 rotates accordingly, and the traction line 76 is pulled to separate the wiring plug 72 from the wiring socket 71. Then the on-off block 74 continues to rotate, and the driving gear 81 is meshed with the linkage gear 82 and the driven gear ring 83 to drive the wiring block 63 to rotate. The on-off handle 75 and the wiring portion 64 of the wiring block 63 are perpendicular to each other, and the flip groove 67 has a sub-groove for the on-off handle 75 to slide and engage, so as to fix the on-off block 74 after rotation.

[0037] To sum up, the principle of this embodiment is that the board support mechanism 14 and the circuit arrangement mechanism 15 inside the converter body 1 are used for assembling and fixing the circuit board and the wires, and the active heat dissipation mechanism 16 is arranged between the board support mechanism 14 and the circuit arrangement mechanism 15 to drive the heat to dissipate rapidly, and the heat dissipation box body 52 has a large heat conduction surface inside, which drives the heat to be discharged along with the compressed air through the vein-like ventilation pipeline.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0039] Although terms such as converter body 1, DSP processing module 11, port module 12, protocol processing module 13, board support mechanism 14, circuit layout mechanism 15, active heat dissipation mechanism 16, bottom plate 17, outer housing 18, locking mechanism 2, locking bar 21, locking groove 22, buckle 23, buckle plate 24, rib 25, power supply installation mechanism 3, power supply installation slot 31, partition 32, positioning post 33, positioning hole 34, reinforcing rib 35, support box body 4, support block 41, wiring hole 42, wire slot 43, sealing strip 44, wiring board 45, adjustment slot 46, cooling fan 5, cooling air cavity 51, cooling box body 52, main pipeline 53, branch pipeline 54, heat dissipation plate 55, main board body 56, sub-board body 57, ventilation port 58, splitter 6, splitter housing 61, plug-in board 62, wiring block 63, wiring part 64, sliding part 65, sliding rod 66, flipping groove 67, on-off mechanism 7, wiring socket 71, wiring plug 72, elastic reset member 73, on-off block 74, on-off handle 75, traction wire 76, reset board 77, commutation node 78, linkage mechanism 8, driving gear 81, linkage gear 82, driven gear ring 83, notch part 84 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A multi - protocol conversion module for network cameras based on DSP, including a converter main body (1). Inside the converter main body (1), there is a DSP processing module (11). The DSP processing module (11) is equipped with a port module (12) and a protocol processing module (13), and is characterized in that, Inside the converter main body (1), a board support mechanism (14) and a circuit layout mechanism (15) are provided. An active heat dissipation mechanism (16) is provided between the board support mechanism (14) and the circuit layout mechanism (15) and the converter main body (1). The converter main body (1) includes a bottom plate (17) and a housing (18) connected to the upper end of the bottom plate (17) through a locking mechanism (2). A power supply installation mechanism (3) is provided between the bottom plate (17) and the housing (18). The converter main body (1) is connected to a splitter (6). The port module (12) is installed on the splitter (6), and the splitter (6) is installed on the back of the converter main body (1). Alternatively, the converter main body (1) is vertically arranged, and the splitter (6) is symmetrically structured with respect to its vertical central plane. The splitter (6) includes a splitter housing (61). The upper and lower ends of the splitter housing (61) have plug-in boards (62) slidably connected to the converter main body (1). A wiring block (63) is slidably installed inside the splitter housing (61). The port module (12) is arranged inside the wiring block (63). A data transmission line connecting the wiring block (63) and the converter main body (1) is provided inside the splitter housing (61). The wiring block (63) has a wiring part (64) and a sliding part (65). The wiring part (64) is cube-shaped and for external lines to be inserted. The sliding part (65) is disk-shaped and has a sliding hole in the center. The splitter housing (61) is provided with a sliding rod (66) horizontally arranged and inserted into the sliding hole. A turning groove (67) extending to the upper end and allowing the wiring part (64) to pass through and turn is opened on the side of the splitter housing (61). A switching mechanism (7) is provided between the sliding part (65) and the data transmission line. A linkage mechanism (8) for driving the wiring block (63) to rotate is provided between the wiring block (63) and the splitter housing (61).

2. The multi-protocol conversion module of the network camera based on DSP according to claim 1, wherein The power supply installation mechanism (3) includes a power supply installation groove (31) provided on the bottom plate (17). The power supply installation groove (31) protrudes downward relative to the bottom plate (17). A partition plate (32) with its edge tightly fixed to the inner side of the housing (18) is installed at the upper end of the bottom plate (17). A positioning mechanism is provided between the housing (18), the bottom plate (17), and the partition plate (32). The positioning mechanism includes positioning columns (33) vertically arranged relative to the bottom plate (17). Positioning holes (34) for the positioning columns (33) to pass through are opened on the partition plate (32). Corresponding threaded holes are provided between the upper end of the housing (18) and the upper end of the positioning columns (33). A reinforcing rib (35) is provided between the positioning columns (33) and the bottom plate (17).

3. The multi-protocol conversion module of the network camera based on DSP according to claim 1, characterized in that The described locking mechanism (2) includes a locking bar (21) arranged at the edge of the bottom plate (17). A buckle (23) that is buckled with a locking groove (22) on the outer side of the locking bar (21) is arranged on the inner side of the lower end of the outer housing (18). A clamping plate (24) corresponding to the buckle (23) one by one is arranged on the inner side of the lower end of the outer housing (18). The clamping plate (24) is attached to the inner side of the locking bar (21), and a corrugated rib (25) is arranged therebetween.

4. The multi-protocol conversion module of the network camera based on DSP according to claim 1, wherein The described plate support mechanism (14) includes a support box body (4) installed inside the converter main body (1). A support block (41) connected to the lower end of the circuit board is arranged inside the support box body (4). A wiring hole (42) connected to the internal circuit board is arranged on the side of the support box body (4). A shielding layer is coated on the inner side of the support box body (4).

5. The multi-protocol conversion module of the network camera based on DSP according to claim 4, characterized in that The described circuit layout mechanism (15) is arranged in a wire slot (43) inside the converter main body (1). Sealing strips (44) made of elastic material are arranged on both sides of the upper opening of the wire slot (43). The wire slot (43) is arranged between wire arranging boards (45). An adjustment slot (46) for the sliding insertion of the wire arranging boards (45) is arranged inside the converter main body (1). The wire slot (43) is arranged in a surrounding manner relative to the support box body (4).

6. The multi - protocol conversion module of a network camera based on DSP according to claim 1, wherein, The described active heat dissipation mechanism (16) includes a heat dissipation fan (5) installed inside the converter main body (1). The heat dissipation fan (5) is arranged inside a spiral heat dissipation air cavity (51). The heat dissipation air cavity (51) is communicated with a heat dissipation box body (52) installed inside the converter main body (1). The heat dissipation air cavity (51) is connected with an air pipe extending into the inside of the heat dissipation box body (52). The air pipe includes a main pipe (53) and branch pipes (54) bifurcated from the main pipe (53). Vent holes are distributed on the branch pipes (54). Heat dissipation plates (55) attached to the upper and lower ends of the air pipe are arranged inside the heat dissipation box body (52). The heat dissipation plates (55) include a main board body (56) attached to the air pipe and a secondary board body (57) arranged obliquely relative to the main board body (56) and in a wavy shape. The gaps between the vent holes of the air pipe and the secondary board body (57) are opposite to each other. An air vent (58) opposite to the gap between the secondary board body (57) is opened on the side of the heat dissipation box body (52).

7. The multi-protocol conversion module of a network camera based on DSP according to claim 1, characterized in that, The on-off mechanism (7) includes a wiring socket (71) provided on the side of the sliding part (65). Inside the branch line housing (61), there are wiring plugs (72) corresponding one by one to the wiring socket (71). The wiring plugs (72) are telescopically connected to the branch line housing (61), and an elastic reset member (73) is provided therebetween. A switching block (74) is rotatably connected to the sliding rod (66) on one side of the wiring block (63). The switching block (74) has a switching handle (75) passing through the flipping groove (67). The switching block (74) is connected to a reset plate (77) provided on both sides of the wiring plug (72) through a traction wire (76). Inside the branch line housing (61), there is a commutation node (78) for restricting the position of the traction wire (76). The linkage mechanism (8) includes a driving gear (81) provided on the opposite side of the switching block (74) and the wiring block (63). Inside the branch line housing (61), a linkage gear (82) meshing with the driving gear (81) is rotatably installed. The wiring block (63) has a driven tooth ring (83) meshing with the linkage gear (82) on the inner side. The rotation direction of the wiring block (63) is opposite to that of the switching block (74). A notch part (84) is formed on one side of the driving gear (81) close to the switching handle (75).

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