CAN-ID setting modification device and system

Abstract

The utility model discloses a CAN-ID setting modification device and system, and relates to the automatic control field, the device is provided with an instruction input module, a main controller and N switch modules, the main controller in the scheme can only control the switch modules corresponding to electrical element CAN-ID modification instructions output by the instruction input module to be switched on, and the N switch modules are switched off; according to the technical scheme of the invention, the switching module is switched on and switched off, so that the electrical element corresponding to the switched-off switching module receives the electrical element CAN-ID modification instruction output by the main controller, the generation of the instruction, the control of the switching module and the transmission of the instruction are all automatic, professional data connection tools and operators are not needed, and the equipment debugging time and technical requirements are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of automatic control, in particular to a CAN-ID setting and modification device and system. Background Art

[0002] In the design process of aerial work platforms, there are usually two or more identical electrical components on the vehicle, and each electrical component has different functions because it is set at a different position in the vehicle. In addition, because in practice, electrical components are purchased according to the CAN-ID (Controller Area Network-Identity document) node number, once two or more identical electrical components need to be purchased, the CAN-ID node number of two or more electrical components in the vehicle will be repeated, which will lead to deviations in the signals transmitted to the main controller by each electrical component.

[0003] In view of the above situation, in order to ensure the correctness of the signal transmitted to the main controller by each electrical component, the CAN-ID node number of each electrical component needs to be modified to avoid signal conflicts. In the prior art, the method of modifying the node of the CAN-ID of an electrical component is to manually disconnect one or more other electrical components, connect the instruction input module to the electrical component using the PCAN data line, and then use the instruction input module to send the node modification instruction of the corresponding electrical component. However, the actual operation steps of the above method are relatively complicated, and professional data connection tools must also be used, and the professional ability requirements for the operator are high and the time for equipment debugging is greatly increased. Utility Model Content

[0004] The purpose of the utility model is to provide a CAN-ID setting and modification device and system. The main controller of this scheme can only control the switch module corresponding to the electrical component CAN-ID modification instruction output by the instruction input module to close, so that the electrical component corresponding to the closed switch module receives the electrical component CAN-ID modification instruction output by the main controller. The generation of instructions, the control of the switch module and the transmission of instructions are all automatic, without the need for professional data connection tools and operators, which greatly reduces the time and technical requirements for equipment debugging.

[0005] In order to solve the above technical problems, the utility model provides a CAN-ID setting and modification device, comprising: a command input module, a main controller and N switch modules, where N is an integer not less than 2;

[0006] The command input module is used to transmit the electrical component CAN-ID modification command;

[0007] The signal receiving end of the main controller is connected to the instruction input module through the first CAN bus, and the signal output end is connected to N electrical components respectively through the second CAN bus, so as to transmit the electrical component CAN-ID modification instruction to the N electrical components; the switch control end is connected to the control end of the N switch modules, so as to control only the switch module corresponding to the electrical component CAN-ID modification instruction to be closed;

[0008] The first ends of the N switch modules are all connected to the first power source, and the second ends are respectively connected to the N electrical components in a one-to-one correspondence.

[0009] Optionally, the switch module is a relay, and the relay includes:

[0010] A coil, wherein the positive electrode of the coil is connected to the control terminal of the main controller, and the negative electrode of the coil is connected to the ground wire, and is used to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after receiving the electrical signal output by the main controller;

[0011] a movable contact of the normally closed contact, the movable contact of the normally closed contact being connected to the first power source;

[0012] The static contact of the normally closed contact is connected to the positive electrode of the corresponding electrical component, and the negative electrode of the electrical component is connected to the ground wire.

[0013] Optionally, the switch module is a relay, and the relay includes:

[0014] A coil, wherein the positive electrode of the coil is connected to the control terminal of the main controller, and the negative electrode of the coil is connected to the ground wire, and is used to close the moving contact of the normally open contact and the static contact of the normally open contact after receiving the electrical signal output by the main controller;

[0015] a movable contact of the normally open contact, the movable contact of the normally open contact being connected to the first power source;

[0016] The static contact of the normally open contact is connected to the positive electrode of the corresponding electrical component, and the negative electrode of the electrical component is connected to the ground wire.

[0017] Optionally, the switch module includes a relay, a second power supply and a controllable switch, including:

[0018] The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller, and is used to close after receiving the control signal output by the main controller;

[0019] The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally closed contact is connected to the first power supply, the static contact of the normally closed contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, so as to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after the controllable switch is closed.

[0020] Optionally, the switch module includes a relay, a second power supply and a controllable switch, including:

[0021] The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller, and is used to close after receiving the control signal output by the main controller;

[0022] The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally open contact is connected to the first power supply, the static contact of the normally open contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, which is used to close the moving contact of the normally open contact and the static contact of the normally open contact after the controllable switch is closed.

[0023] Optionally, the instruction input module is a display touch screen.

[0024] Optionally, also include:

[0025] A protection device is provided in the output circuit of the first power supply and is used for disconnecting when an overcurrent condition occurs in the output circuit.

[0026] Optionally, the protection device is a fuse, which is arranged in the output circuit of the first power supply and is used for disconnecting when an overcurrent occurs in the output circuit.

[0027] In order to solve the above technical problems, the utility model also provides a CAN-ID setting modification system, including: the CAN-ID setting modification device as described above and N electrical components, and the CAN-ID setting modification device is respectively connected to the N electrical components.

[0028] The purpose of the utility model is to provide a CAN-ID setting and modification device and system, in which a command input module, a main controller and N switch modules are provided. The main controller of this scheme can only control the switch module corresponding to the electrical component CAN-ID modification command output by the command input module to close, so that the electrical component corresponding to the closed switch module receives the electrical component CAN-ID modification command output by the main controller. The generation of the command, the control of the switch module and the transmission of the command are all automatic, without the need for professional data connection tools and operators, which greatly reduces the time and technical requirements for equipment debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a CAN-ID setting and modification device provided by the utility model;

[0031] Figure 2 The present invention provides a structural diagram of a CAN-ID setting and modification system. DETAILED DESCRIPTION

[0032] The core of the utility model is to provide a CAN-ID setting and modification device and system. The main controller of this scheme can only control the switch module corresponding to the electrical component CAN-ID modification instruction output by the instruction input module to close, so that the electrical component corresponding to the closed switch module receives the electrical component CAN-ID modification instruction output by the main controller. The generation of instructions, the control of the switch module and the transmission of instructions are all automatic, without the need for professional data connection tools and operators, which greatly reduces the time and technical requirements for equipment debugging.

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Please refer to Figure 1 , Figure 1 The schematic diagram of the structure of a CAN-ID setting and modification device provided by the utility model. The CAN-ID setting and modification device comprises: an instruction input module 1, a main controller 2 and N switch modules 3, where N is an integer not less than 2;

[0035] A command input module 1, used for transmitting a CAN-ID modification command of an electrical component;

[0036] The signal receiving end of the main controller 2 is connected to the instruction input module 1 through the first CAN bus, and the signal output end is connected to N electrical components respectively through the second CAN bus, so as to transmit the electrical component CAN-ID modification instruction to the N electrical components; the switch control end is connected to the control end of the N switch modules 3, so as to control only the switch module 3 corresponding to the electrical component CAN-ID modification instruction to be closed;

[0037] The first ends of the N switch modules 3 are all connected to the first power source, and the second ends are respectively connected to the N electrical components in a one-to-one correspondence.

[0038] In the utility model, the CAN-ID setting and modification device is provided with a command input module 1, a main controller 2 and N switch modules 3, wherein the command input module 1 can generate an electrical component CAN-ID modification command, and transmit the electrical component CAN-ID modification command to the main controller 2 through the first CAN bus, and the main controller 2 will only control the switch module 3 corresponding to the electrical component CAN-ID modification command to close, and transmit the electrical component CAN-ID modification command to the N electrical components, because at this time only one of the N electrical components is powered on, so only one electrical component receives the electrical component CAN-ID modification command and performs the corresponding CAN-ID modification. Through the above method, it can be ensured that when there are two or more identical electrical components on the vehicle, the other several of one or more of the two can perform the corresponding CAN-ID modification to ensure the correctness of the signal transmitted to the main controller 2 by each electrical component. In addition, because the generation of the command, the control of the switch module 3 and the transmission of the command in this solution are all automatic, without the need for professional data connection tools and operators, the time and technical requirements for equipment debugging are greatly reduced.

[0039] It should be noted that the advantages of the utility model are: 1. It breaks the current traditional manual disconnection and the manual solution of using the host computer and specific tools to modify the CAN-ID node, and achieves the purpose of automatically modifying the CAN-ID node without the help of external devices, which greatly reduces the professional ability requirements for the operator; 2. There is no need to manually judge whether the CAN-ID node is successfully modified. It can be directly known from the display screen whether the automatic modification of the CAN-ID node is successful, which greatly improves the level of human-computer interaction; 3. The same electrical component is used for different functions. There is no need to apply for multiple material identification codes. Through this solution, the CAN-ID node of one electrical component can be modified to achieve other functions, which greatly ensures the versatility of the material and reduces the management cost of the same material.

[0040] The present embodiment provides a CAN-ID setting and modification device and system, in which an instruction input module 1, a main controller 2 and N switch modules 3 are provided. The main controller 2 of the present scheme can only control the switch module 3 corresponding to the electrical component CAN-ID modification instruction output by the instruction input module 1 to close, so that the electrical component corresponding to the closed switch module 3 receives the electrical component CAN-ID modification instruction output by the main controller 2. The generation of instructions, the control of the switch module 3 and the transmission of instructions are all automatic, without the need for professional data connection tools and operators, which greatly reduces the time and technical requirements for equipment debugging.

[0041] Based on the above embodiments:

[0042] As an optional embodiment, the switch module 3 is a relay, and the relay includes:

[0043] A coil, the positive electrode of the coil is connected to the control terminal of the main controller 2, and the negative electrode of the coil is connected to the ground wire, and is used to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after receiving the electrical signal output by the main controller 2;

[0044] a moving contact of a normally closed contact, wherein the moving contact of the normally closed contact is connected to a first power source;

[0045] The static contact of the normally closed contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire.

[0046] In the utility model, when the switch module 3 is a relay, the power gain and loss of the relay coil is determined by the main controller 2. When the main controller 2 decides to control the relay to be disconnected, the main controller 2 will transmit an electrical signal to the coil to energize the relay coil. When the relay coil is energized, the moving contact of the normally closed contact of the relay and the static contact of the normally closed contact will be disconnected, thereby causing the relay to lose power and stop working for other unrelated electrical components. On the contrary, the electrical components that need to modify the CAN-ID node number remain in a working state, thereby ensuring that only one of the N electrical components is powered on to ensure the accuracy of the CAN-ID modification process. At the same time, it is ensured that all electrical components can work normally when the CAN-ID node number does not need to be modified. In addition, because the normally closed contact of the relay is always kept in a closed state when the coil is not powered on, the main controller 2 does not need to always control the normally closed contact of the relay to remain closed under normal conditions, thereby reducing energy consumption.

[0047] It should be noted that in actual applications, if the instruction input module 1 simultaneously outputs N-1 different electrical component CAN-ID modification instructions to the main controller 2, then the main controller 2 controls the N-1 different electrical components to be powered on and work in sequence according to the corresponding numbers of the N switch modules 3, so as to transmit the corresponding electrical component CAN-ID modification instructions to the corresponding electrical components in sequence.

[0048] It should also be noted that when the switch module 3 is a relay, the structure diagram of the CAN-ID setting and modification system is as follows: Figure 2 As shown, the display touch screen communicates with the main controller 2 using the first CAN bus, and the first electrical component and the second electrical component communicate with the vehicle main controller 2 using the second CAN bus. The main controller 2 controls the pull-in action of the first relay and the second relay contact. Click the function button preset in the display touch screen to modify the CAN-ID node of the first electrical component, and the display touch screen sends the instruction of "modify the CAN-ID node of the first electrical component" to the main controller 2 through the first CAN bus. After the main controller 2 receives the instruction sent by the display touch screen through the first CAN bus, the output point 2 of the main controller 2 continuously outputs to the coil of the second relay, and the contact of the second relay is disconnected, so the power supply of the second electrical component is disconnected, and the second electrical component stops working. After the output point 2 of the main controller 2 starts the output timing for 5 seconds, the main controller 2 sends a CAN-ID node modification instruction preset in the main controller 2 program on the second CAN bus. After the main controller 2 sends the modification instruction on the second CAN bus, it starts timing for 10 seconds, and during this period, it is determined whether the main controller 2 captures the message content sent by the new CAN-ID node number after the modification is successful on the second CAN bus. If there is no message content sent by the new CAN-ID node number, the main controller 2 turns off the output of output point 2, and sends a command of "CAN-ID node modification failed" to the display touch screen on the first CAN bus. After the display touch screen receives this command, the display touch screen displays the content "CAN-ID node modification failed, please recheck whether the electrical components are working properly and try again!" on the screen. If there is a message content sent by the new CAN-ID node number, the main controller 2 turns off the output of output point 2, and sends a command of "CAN-ID node modification successful" to the display screen on the first CAN bus. After the display screen receives this command, the display screen displays the content "CAN-ID node modification successful!" on the screen. At this point, the CAN-ID node modification operation is completed. The entire vehicle returns to normal.

[0049] As an optional embodiment, the switch module 3 is a relay, and the relay includes:

[0050] A coil, the positive electrode of the coil is connected to the control terminal of the main controller 2, and the negative electrode of the coil is connected to the ground wire, and is used to close the moving contact of the normally open contact and the static contact of the normally open contact after receiving the electrical signal output by the main controller 2;

[0051] a moving contact of a normally open contact, wherein the moving contact of the normally open contact is connected to a first power source;

[0052] The static contact of the normally open contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire.

[0053] In the present utility model, when the switch module 3 is a relay, the power gain and loss of the relay coil is determined by the main controller 2. When the main controller 2 decides to control the relay to close, the main controller 2 will transmit an electrical signal to the coil to energize the relay coil. When the relay coil is energized, the moving contact of the normally open contact of the relay and the static contact of the normally open contact will close, thereby causing other irrelevant electrical components other than the electrical components whose CAN-ID node number needs to be modified to continue to lose power and stop working. On the contrary, the electrical components whose CAN-ID node number needs to be modified remain in the working state, thereby ensuring that only one of the N electrical components is powered on to ensure the accuracy of the CAN-ID modification process. At the same time, it is ensured that all electrical components can work normally when the CAN-ID node number does not need to be modified.

[0054] It should be noted that, in actual applications, because the normally open contact of the relay remains disconnected when the coil is not powered, the main controller 2 needs to control it to remain closed under normal conditions.

[0055] As an optional embodiment, the switch module 3 includes a relay, a second power supply and a controllable switch, including:

[0056] The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller 2, and is used to close after receiving the control signal output by the main controller 2;

[0057] The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally closed contact is connected to the first power supply, the static contact of the normally closed contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, which is used to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after the controllable switch is closed.

[0058] In the utility model, when the switch module 3 is provided with a relay, a second power supply and a controllable switch, wherein the controllable switch can be closed based on the control of the main controller 2, when the controllable switch is closed, the coil of the relay is energized, and the moving contact of the normally closed contact of the relay and the static contact of the normally closed contact are disconnected, at which time the electrical component corresponding to the relay loses power and stops working; conversely, when the controllable switch is disconnected, the coil of the relay is not energized, the moving contact of the normally closed contact of the relay and the static contact of the normally closed contact remain closed, at which time the electrical component corresponding to the relay is energized and works, thereby ensuring that only one electrical component among N electrical components is energized and works, so as to ensure the accuracy of the CAN-ID modification process.

[0059] As an optional embodiment, the switch module 3 includes a relay, a second power supply and a controllable switch, including:

[0060] The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller 2, and is used to close after receiving the control signal output by the main controller 2;

[0061] The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally open contact is connected to the first power supply, the static contact of the normally open contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, which is used to close the moving contact of the normally open contact and the static contact of the normally open contact after the controllable switch is closed.

[0062] In the utility model, when the switch module 3 is provided with a relay, a second power supply and a controllable switch, wherein the controllable switch can be closed based on the control of the main controller 2, when the controllable switch is closed, the coil of the relay is energized, and the moving contact of the normally open contact of the relay and the static contact of the normally open contact are closed, at which time the electrical component corresponding to the relay loses power and stops working; conversely, when the controllable switch is disconnected, the coil of the relay is not energized, the moving contact of the normally open contact of the relay and the static contact of the normally open contact remain disconnected, at which time the electrical component corresponding to the relay is energized and works, thereby ensuring that only one electrical component among N electrical components is energized and works, so as to ensure the accuracy of the CAN-ID modification process.

[0063] As an optional embodiment, the instruction input module 1 is a display touch screen.

[0064] In the utility model, the instruction input module 1 is a display touch screen. For example, the user can input the electrical components that need to have their CAN-ID modified on the display touch screen to generate corresponding electrical component CAN-ID modification instructions, which is more convenient for the user to operate.

[0065] As an optional embodiment, it also includes:

[0066] The protection device is arranged in the output circuit of the first power supply and is used for disconnecting when an overcurrent occurs in the output circuit.

[0067] In the utility model, a protection device is also provided in the CAN-ID setting and modification device, and the protection device is provided in the output circuit of the first power supply. When an overcurrent condition occurs in the output circuit of the first power supply, the protection device will automatically disconnect to protect the electronic devices in the output circuit, thereby improving the safety of the solution.

[0068] As an optional embodiment, the protection device is a fuse, which is arranged in the output circuit of the first power supply and is used for disconnecting when an overcurrent condition occurs in the output circuit.

[0069] In the utility model, the protection device is a fuse, which can be automatically disconnected when an overcurrent condition occurs in the output circuit of the first power supply, and the fuse has the advantages of high breaking capacity, high current limiting characteristics and no maintenance.

[0070] As an optional embodiment, transmitting an electrical component CAN-ID modification instruction to N electrical components includes:

[0071] The electrical component CAN-ID modification instruction is transmitted to the N electrical components after the corresponding switch module 3 is closed for a first preset time.

[0072] In the utility model, the main controller 2 will transmit electrical component CAN-ID modification instructions to N electrical components after controlling the corresponding switch module 3 to close for a first preset time. Considering that the electrical components need to be fully started after the switch module 3 is closed, and the electrical components will only receive the electrical component CAN-ID modification instructions normally after they are fully started, it is necessary to delay the first preset time to wait for the electrical components to be fully started before transmitting the electrical component CAN-ID modification instructions to N electrical components, thereby ensuring that the electrical components can successfully receive the electrical component CAN-ID modification instructions, thereby improving the accuracy and reliability of the solution.

[0073] As an optional embodiment, the main controller 2 is further configured to:

[0074] Within a second preset time after transmitting an electrical component CAN-ID modification instruction to N electrical components, a message content transmitted back by a closed electrical component is received, and it is determined based on the message content whether the CAN-ID of the electrical component corresponding to the electrical component CAN-ID modification instruction is successfully modified.

[0075] In the utility model, the main controller 2 receives the message content transmitted back by the closed electrical component within the second preset time after transmitting the electrical component CAN-ID modification instruction to N electrical components, and judges whether the CAN-ID of the electrical component corresponding to the electrical component CAN-ID modification instruction is successfully modified according to the message content, that is, the main controller 2 also has a CAN-ID modification judgment function. Once the message content transmitted back by the electrical component is not received within the second preset time, it can be directly determined that the electrical component has a fault. Conversely, if the message transmitted back by the electrical component is received within the second preset time, it is judged whether the CAN-ID of the electrical component corresponding to the electrical component CAN-ID modification instruction is successfully modified according to the message content, which increases the judgment of whether the CAN-ID of the electrical component is successfully modified, and ensures the accuracy of the CAN-ID modification process.

[0076] As an optional embodiment, it also includes:

[0077] The alarm device is connected to the main controller 2 and is used to issue a corresponding alarm when the CAN-ID of the electrical component corresponding to the electrical component CAN-ID modification instruction is not successfully modified.

[0078] In the utility model, an alarm device is also provided in the CAN-ID setting and modification device, and the alarm device can send out a corresponding alarm when the CAN-ID of the electrical component is not successfully modified, so that the user can promptly discover the fault of the electrical component and perform subsequent maintenance in time.

[0079] It should be noted that, in practical applications, the alarm device may be a display alarm device, or a sound alarm device, or an alarm device such as a display alarm device and a sound alarm device.

[0080] Please refer to Figure 2 , Figure 2 The present invention provides a structural diagram of a CAN-ID setting and modification system. The CAN-ID setting and modification system comprises: the CAN-ID setting and modification device as described above and N electrical components, wherein the CAN-ID setting and modification device are respectively connected to the N electrical components.

[0081] The CAN-ID setting modification system provided in this embodiment corresponds to the above-mentioned CAN-ID setting modification device, and therefore has the same beneficial effects as the above-mentioned CAN-ID setting modification device. Therefore, for the embodiments of the CAN-ID setting modification system part, please refer to the description of the embodiments of the CAN-ID setting modification device part, which will not be repeated here.

[0082] It should be noted that, in this specification, 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 "comprise", "include" 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, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0083] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CAN-ID setting and modification device, characterized in that: include: A command input module, a main controller and N switch modules, where N is an integer not less than 2; The command input module is used to transmit the electrical component CAN-ID modification command; The signal receiving end of the main controller is connected to the instruction input module through the first CAN bus, and the signal output end is connected to N electrical components respectively through the second CAN bus, so as to transmit the electrical component CAN-ID modification instruction to the N electrical components; the switch control end is connected to the control end of the N switch modules, so as to control only the switch module corresponding to the electrical component CAN-ID modification instruction to be closed; The first ends of the N switch modules are all connected to the first power source, and the second ends are respectively connected to the N electrical components in a one-to-one correspondence.

2. The CAN-ID setting and modification device according to claim 1, characterized in that: The switch module is a relay, and the relay comprises: A coil, wherein the positive electrode of the coil is connected to the control terminal of the main controller, and the negative electrode of the coil is connected to the ground wire, and is used to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after receiving the electrical signal output by the main controller; a movable contact of the normally closed contact, the movable contact of the normally closed contact being connected to the first power source; The static contact of the normally closed contact is connected to the positive electrode of the corresponding electrical component, and the negative electrode of the electrical component is connected to the ground wire.

3. The CAN-ID setting and modification device according to claim 1, characterized in that: The switch module is a relay, and the relay comprises: A coil, wherein the positive electrode of the coil is connected to the control terminal of the main controller, and the negative electrode of the coil is connected to the ground wire, and is used to close the moving contact of the normally open contact and the static contact of the normally open contact after receiving the electrical signal output by the main controller; a movable contact of the normally open contact, the movable contact of the normally open contact being connected to the first power source; The static contact of the normally open contact is connected to the positive electrode of the corresponding electrical component, and the negative electrode of the electrical component is connected to the ground wire.

4. The CAN-ID setting and modification device according to claim 1, characterized in that: The switch module includes a relay, a second power supply and a controllable switch, including: The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller, and is used to close after receiving the control signal output by the main controller; The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally closed contact is connected to the first power supply, the static contact of the normally closed contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, so as to disconnect the moving contact of the normally closed contact and the static contact of the normally closed contact after the controllable switch is closed.

5. The CAN-ID setting and modification device according to claim 1, characterized in that: The switch module includes a relay, a second power supply and a controllable switch, including: The first end of the controllable switch is connected to the second power supply, the second end is connected to the positive pole of the coil of the relay, and the control end is connected to the control end of the main controller, and is used to close after receiving the control signal output by the main controller; The negative pole of the coil of the relay is connected to the ground wire, the moving contact of the normally open contact is connected to the first power supply, the static contact of the normally open contact is connected to the positive pole of the corresponding electrical component, and the negative pole of the electrical component is connected to the ground wire, which is used to close the moving contact of the normally open contact and the static contact of the normally open contact after the controllable switch is closed.

6. The CAN-ID setting and modification device according to claim 1, characterized in that: The instruction input module is a display touch screen.

7. The CAN-ID setting and modifying device according to any one of claims 1 to 6, characterized in that: Also includes: A protection device is provided in the output circuit of the first power supply and is used for disconnecting when an overcurrent condition occurs in the output circuit.

8. The CAN-ID setting and modification device according to claim 7, characterized in that: The protection device is a fuse, which is arranged in the output circuit of the first power supply and is used to be disconnected when an overcurrent occurs in the output circuit.

9. A CAN-ID setting and modification system, characterized in that: include: The CAN-ID setting and modification device and N electrical components according to any one of claims 1 to 8, wherein the CAN-ID setting and modification device are connected to the N electrical components respectively.

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