Multi-channel constant current source device and system

Abstract

The application discloses a kind of multi-channel constant current source device and system.The device includes: power module;Control module is electrically connected with power module, control module includes control unit and communication unit, communication unit is connected with control unit, host computer communication;Power regulating module is electrically connected with power module, communication unit, and power regulating module is provided with multiple parallel power regulating units;Power output module is electrically connected with power regulating module, and power output module is provided with multiple current output units, and current output unit is connected with power regulating unit one by one, and current output unit is used to connect coil to be handled, and each current output unit is connected with one coil to be handled at most.The application can realize that single power output device is powered to multiple coils respectively by setting multiple current output units.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of current control, in particular to a multi-channel constant current source device and system. BACKGROUND

[0002] In the existing wafer chip processing and manufacturing process, the host computer needs to control multiple coils respectively. The existing control method is that the host computer is connected with a constant current source device, multiple constant current source devices are connected with each other, and the state information of other constant current source devices is sent to the host computer through the constant current source device connected with the host computer. There is a risk of slow information instruction transmission and information instruction loss. How to simultaneously power multiple coils through a single constant current source device is a problem that needs to be solved at present. SUMMARY

[0003] The embodiments of the present application provide a multi-channel constant current source device and system, which can realize power supply input of a single power output device to multiple coils by setting multiple current output units.

[0004] In a first aspect, the embodiments of the present application provide a multi-channel constant current source device, which comprises:

[0005] a power module;

[0006] a control module electrically connected with the power module, the control module comprising a control unit and a communication unit, the communication unit being in communication connection with the control unit and a host computer;

[0007] a power adjusting module electrically connected with the power module and the communication unit, the power adjusting module being provided with multiple parallel power adjusting units;

[0008] a power output module electrically connected with the power adjusting module, the power output module being provided with multiple current output units, the current output units being connected with the power adjusting units one by one, the current output units being used for connecting coils to be processed, and each current output unit connecting at most one coil to be processed;

[0009] The power module supplies power for the control module, and the control module is started. The host computer acquires the connection information of the current output units and the coils to be processed detected by the control unit through the communication unit, generates a control instruction based on the connection information and preset processing process parameters, and sends the control instruction to the control unit through the communication unit.

[0010] The control unit analyzes the control instruction to determine the target working parameters of each current output unit, and sends the target working parameters to each power adjusting unit through the communication unit. Each power adjusting unit adjusts the target current intensity output by the current output unit according to the target working parameters.

[0011] In some embodiments, the power module comprises a first power input unit and a second power input unit, the control module is electrically connected with the first power input unit, and the power regulating unit is electrically connected with the second power input unit.

[0012] In some embodiments, the power regulating unit comprises a circuit breaker, an external relay, a communication circuit, a solid-state relay, an AC-DC power conversion module, and a power circuit.

[0013] The input end of the circuit breaker is connected with an AC power source, and the output end of the circuit breaker is connected with the communication circuit.

[0014] The output end of the circuit breaker, the external relay, and the input end of the solid-state relay are connected, and the solid-state relay is closed when the circuit breaker and the external relay are both closed.

[0015] The output end of the solid-state relay is connected with the input end of the AC-DC power conversion module, and the output end of the AC-DC power conversion module is connected with the power circuit.

[0016] The communication circuit is connected with the power circuit, and the communication circuit is used to read the working condition of the power circuit and control the output of the power circuit.

[0017] In some embodiments, when the communication circuit and the power circuit are in a normal working condition, if the solid-state relay is opened, the communication circuit reports an error; after the solid-state relay is re-closed, the power circuit enters a standby state.

[0018] In some embodiments, the control unit acquires the current working strength of each current output unit through the communication unit every preset period.

[0019] The control unit controls the power regulating unit to adjust based on the target current strength and the current working strength of each current output unit, so that the current output unit outputs the target current strength.

[0020] In some embodiments, the control unit acquires the adjustment scheme of each power regulating unit for the current output unit and sends it to the upper computer through the communication unit.

[0021] In some embodiments, the upper computer acquires the connection information of a plurality of multi-channel constant current source devices and coils to be processed.

[0022] If the upper computer determines that the connection state is abnormal based on the connection information, the upper computer sends a self-checking instruction to the control unit through the communication unit, and the control unit performs self-checking on the multi-channel constant current source device.

[0023] If the host computer determines that the connection state is normal based on the connection information, the host computer determines the preset processing process parameters according to the parameter information of the coil to be processed.

[0024] The host computer generates the control instruction based on the connection information and the preset processing process parameters.

[0025] In some embodiments, the multi-channel constant current source device further comprises a heat dissipation module, and the heat dissipation module comprises a plurality of heat dissipation units, each of which corresponds to one of the power adjusting units.

[0026] In a second aspect, the embodiments of the present application provide a multi-channel constant current source system, which comprises a terminal device, a host computer and at least one multi-channel constant current source device as described in any of the above embodiments. The terminal device is in communication connection with the host computer. The host computer acquires historical working information of the at least one multi-channel constant current source device and sends the historical working information to the terminal device.

[0027] In some embodiments, the terminal device determines the current adjustment frequency and the current adjustment amplitude of a target multi-channel constant current source device according to the historical working information, and determines a process evaluation report of the target multi-channel constant current source device according to the current adjustment frequency and the current adjustment amplitude of the target multi-channel constant current source device.

[0028] By adopting the scheme of the embodiments of the present application, a single power output device can be used to supply power to multiple coils respectively by arranging multiple current output units. The host computer can control the power adjusting module to adjust the output parameters of each current output unit through the control module, thereby reducing the objects that the host computer needs to directly connect and control, and avoiding instruction delay. In addition, the power module separately supplies power to the control module and the power adjusting module, and supplies power in layers, thereby reducing the impact of sudden power supply on the coil to be processed. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a structural schematic diagram of a multi-channel constant current source device provided in the embodiments of the present application;

[0031] Figure 2 is a structural schematic diagram of a multi-channel constant current source device provided in the embodiments of the present application;

[0032] Figure 3 is a flowchart of a multi-channel constant current source device in an embodiment of the present application;

[0033] Figure 4 is a structural diagram of a power regulating unit in an embodiment of the present application.

[0034] Reference Signs

[0035] 100, multi-channel constant current source device; 110, power supply module; 111, first power supply input unit; 112, second power supply input unit; 120, control module; 121, control unit; 122, communication unit; 130, power regulating module; 131, power regulating unit; 140, power supply output module; 141, current output unit; 200, host computer. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Meanwhile, in the description of the embodiments of the present application, the terms “first”, “second”, etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance. Therefore, the features with “first” and “second” can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0037] Please refer to Figure 1 and Figure 2 The present application provides a multi-channel constant current source device, at least one multi-channel constant current source device 100 is in communication connection with a host computer 200, and the communication connection between the host computer 200 and the at least one multi-channel constant current source device 100 can be wired communication connection or wireless communication connection. The information transmission mode includes but is not limited to two modes of EtherCAT and RS485, and the user can select the corresponding data information communication mode according to the needs.

[0038] The multi-channel constant current source device 100 comprises a power supply module 110, a control module 120, a power adjusting module 130 and a power output module 140, and the power supply module 110 is used for supplying power to other modules. The control module 120 is electrically connected with the power supply module 110, and the power supply module 110 supplies power to the control module 120. The control module 120 comprises a control unit 121 and a communication unit 122, and the communication unit 122 is in communication connection with the control unit 121 and the upper computer 200. The upper computer 200 performs data transmission with the control unit 121 through the communication unit 122, and the data transmission mode is not limited.

[0039] The power adjusting module 130 is electrically connected with the power supply module 110 and the communication unit 122, and the power supply module 110 supplies power to the power adjusting module 130. The control unit 121 performs data transmission with the power adjusting module 130 through the communication unit 122. The power adjusting module 130 is provided with a plurality of parallel power adjusting units 131, each of which is connected with the communication unit 122. The power adjusting unit 131 feeds back working condition parameters to the communication unit 122, and simultaneously performs working condition adjustment based on the instruction of the communication unit 122.

[0040] The power output module 140 is electrically connected with the power adjusting module 130, and is provided with a plurality of current output units 141. The current output units 141 are connected with the power adjusting units 131 one by one, that is, one power adjusting unit 131 is responsible for adjusting the working condition of one current output unit 141. The current output units 141 are respectively used for connecting the coils to be processed, that is, one power adjusting unit 131 is responsible for adjusting the current input to one coil to be processed. Each current output unit 141 is connected with at most one coil to be processed, that is, each coil to be processed is independently adjusted, and only part of the current output units 141 in the power output module 140 can be connected with the coils to be processed for work.

[0041] The power supply module 110 supplies power to the control module 120, and the control module 120 is started. The control unit 121 of the control module 120 detects whether the communication unit 122 has been connected with the upper computer 200, and simultaneously detects the connection information of the plurality of power adjusting units 131, that is, confirms the connection state of the corresponding plurality of current output units 141 and the coils to be processed, and feeds back the connection information to the upper computer 200 through the communication unit 122.

[0042] The upper computer 200 acquires the connection information of the current output units 141 and the coils to be processed detected by the control unit 121. The upper computer 200 generates a control instruction based on the connection information and preset processing process parameters, and sends the control instruction to the control unit 121 through the communication unit 122. The preset processing process parameters are the production requirement process of each coil to be processed, which is freely set based on design requirements and process requirements, and will not be described one by one in this embodiment.

[0043] The control unit 121 analyzes the control instruction to determine the target working parameter of each current output unit 141, which is the working parameter that the current output unit 141 is expected to output to the coil to be processed, such as the current intensity, and sends it to each power adjusting unit 131 through the communication unit 122. Each power adjusting unit 131 adjusts the duty cycle in the power supply circuit according to the target working parameter to adjust the current output unit 141 to output the target current intensity to the corresponding coil to be processed. The target current intensity is determined based on the target working parameter, which includes but is not limited to the target current intensity.

[0044] In this embodiment, multiple current output units 141 are provided to enable a single power supply output device to supply power to multiple coils, and the host computer 200 can control the power adjusting module 130 to adjust the output parameters of each current output unit 141 through the control module 120, reducing the number of objects that the host computer 200 needs to directly connect and control, and avoiding instruction delay.

[0045] The host computer 200 can connect multiple multi-channel constant current source devices 100, and the host computer 200 and the multi-channel constant current source devices 100 can be connected wirelessly, reducing the strength of the hardware connection. In addition, the host computer 200 only needs to determine the control instruction based on the connection information and the preset processing process parameters, and the control adjusting process of controlling the power adjusting module 130 to adjust the output parameters of each current output unit 141 is completed by the control unit 121 of the control module 120 of the multi-channel constant current source device 100, i.e., the multi-channel constant current source device 100 itself independently completes the subsequent parameter adjustment based on the control instruction without the participation of the host computer 200, further reducing the data processing amount of the host computer 200, so that the host computer 200 can connect multiple multi-channel constant current source devices 100 at the same time and process in parallel, improving the processing efficiency.

[0046] In addition, the control module 120 and the power adjusting module 130 in the multi-channel constant current source device 100 are distributed, and the power module 110 supplies power twice. The first power supply is to supply power to the control module 120, and the control module 120 is started. The control module 120 confirms that the multi-channel constant current source device 100 has been connected to the host computer 200, and obtains the control instruction sent by the host computer 200. The control module 120 analyzes the control instruction to obtain the target working parameter of each current output unit 141, such as the current intensity. The second power supply is to supply power to the power adjusting module 130, and the power adjusting module 130 is started. The control module 120 sends the corresponding target working parameter to the corresponding power adjusting module 130, and the power adjusting module 130 outputs the corresponding target current intensity, while starting the corresponding heat dissipation unit to dissipate heat for the corresponding power adjusting module 130. This reduces the power consumption of the multi-channel constant current source device 100 and prolongs the service life of the constant current source device.

[0047] As shown in Figure 3 , the host computer 200 is an input end, and the multi-channel constant current source device 100 is a processing end. The host computer 200 sets a man-machine interface, sends a start instruction to the multi-channel constant current source device 100, and controls the starting of the control module 120. At the same time, the self-checking unit is started, the device connection detection is carried out, and the connection information is fed back to the host computer 200 through the communication unit 122. The connection information includes the communication state between each module of the multi-channel constant current source device 100 and the state information of the module. The host computer 200 receives the connection information and sends a control instruction to the multi-channel constant current source device 100. The control instruction includes a device running instruction. After the multi-channel constant current source device 100 receives the control instruction, the corresponding intensity of current is input to the connected device, i.e., the coil to be processed.

[0048] In one embodiment, the power module 110 includes a first power input unit 111 and a second power input unit 112. The control module 120 is electrically connected with the first power input unit 111, and the first power input unit 111 supplies power for the control module 120 to open and close. The power adjusting module 130 is electrically connected with the second power input unit 112, and the second power input unit 112 supplies power for the power adjusting module 130. After the power adjusting module 130 is adjusted, it is input to the power output module 140. In this embodiment, double power input units are arranged to isolate the control module 120 from the power adjusting module 130 and the power output module 140, so as to ensure the safe operation of the coil connected with the power output module 140.

[0049] In one embodiment, as shown in Figure 4 , the power adjusting unit 131 includes a circuit breaker, an external relay, a communication loop, a solid-state relay, an AC-DC power conversion module, and a power loop. The input end of the circuit breaker is connected with an AC power source (AC-DC input), and the output end of the circuit breaker is connected with the communication loop. The output end of the circuit breaker and the input end of the solid-state relay are connected with the external relay, and the solid-state relay is closed when the circuit breaker and the external relay are both closed. The output end of the solid-state relay is connected with the input end of the AC-DC power conversion module, and the output end of the AC-DC power conversion module is connected with the power loop. The communication loop is connected with the power loop, and the communication loop is used to read the working condition of the power loop and control the output of the power loop.

[0050] When the communication loop and the power loop are in a normal working condition, if the solid-state relay is disconnected, the communication loop will report an error. After the solid-state relay is re-closed, the power loop enters a standby state.

[0051] In addition, the power adjusting unit 131 further comprises an auxiliary power indicator, a power supply indicator and a fan. The output end of the circuit breaker is connected with the auxiliary power indicator, which is used to indicate whether the power input to the communication loop is normal. The power supply indicator and the fan are both connected with the output end of the AC-DC power conversion module, the power supply indicator is used to indicate whether the power input to the power loop is normal, and the fan is used to dissipate heat for the power loop when the power loop is normally working.

[0052] That is, the AC power (AC input) is divided into two parts after passing through the circuit breaker, one part is the AC input of the power supply (AC-DC power supply), and the other part is the AC input of the auxiliary power supply. The circuit breaker is the master switch. When the circuit breaker is closed, the auxiliary power supply works normally; the power supply needs to be closed after the circuit breaker and the solid-state relay to work normally. The solid-state relay is controlled to be closed by the contact (short circuit) of the external relay, the power loop works normally, and is in the standby state. At this time, the communication loop can control the output of the power loop. When the contact of the external relay is not closed, the solid-state relay is opened, and the power loop and the fan cannot work normally due to lack of power input. At this time, the communication loop cannot read the working condition of the power loop in real time. If the solid-state relay is opened when the power loop is in normal working condition, the communication loop will report an error; when the solid-state relay is closed again, the power loop will not restore the working condition before the power failure, but will re-enter the standby state.

[0053] In this embodiment, the AC input is divided into the AC input of the power supply and the AC input of the auxiliary power supply. The auxiliary power supply is used to control the communication loop, and the power supply is used to control the power loop. The on-off of the power supply is controlled by the external relay to ensure the stability of the communication loop and enhance the safety of the power loop.

[0054] In one embodiment, the control unit 121 obtains the current working strength of each current output unit 141 through the communication unit 122 every preset period. The preset period can be set according to the demand and the performance of the processor, and the embodiment does not make specific limitation.

[0055] The control unit 121 controls the power adjusting unit 131 to adjust based on the target current strength and the current working strength of each current output unit 141, so that the current output unit 141 outputs the target current strength. For example, the purpose of the embodiment is to provide a constant current power supply for the coil to be processed. If the difference between the target current strength and the current working strength exceeds the preset threshold, the power adjusting unit 131 increases or decreases the corresponding current strength based on the target current strength, so that the current working strength of the current output unit 141 reaches the target current strength. If the difference between the target current strength and the current working strength does not exceed the preset threshold, that is, the deviation of the current strength is within the allowable range, the power adjusting unit 131 keeps the current state without changing.

[0056] It should be noted that the preset threshold depends on the current intensity fluctuation range that the coil to be processed can accept, and in order to ensure that the coil to be processed is not affected, the preset threshold is set to be lower than the maximum value of the current intensity fluctuation range.

[0057] In the embodiment, the control unit 121 controls the power adjusting unit 131 to adjust the current working intensity fed back by each current output unit 141 every preset period, so as to maintain the constant current output of each current output unit 141 to the coil to be processed.

[0058] In one embodiment, the control unit 121 obtains the adjustment scheme of each power adjusting unit 131 to the current output unit 141 and sends it to the host computer 200 through the communication unit 122. The adjustment scheme includes the current working intensity of each current output unit 141 connected each time and the current amplitude adjusted by the power adjusting unit 131 based on the current working intensity. The control unit 121 encapsulates the adjustment scheme of each coil to be processed and then sends it to the host computer 200. The host computer 200 itself or sends it to other terminal devices to analyze and evaluate the adjustment scheme of each coil to be processed to determine whether the processing parameters of each coil to be processed are reasonable and whether there is a fault in each module of the multi-channel constant current source device 100.

[0059] In one embodiment, the host computer 200 obtains the connection information of each current output unit 141 of the plurality of multi-channel constant current source devices 100 and the coil to be processed. The connection information shows the connection state of the current output unit 141 and the coil to be processed.

[0060] If the host computer 200 determines that the connection state is abnormal based on the connection information, and the connection state abnormality is that a certain current output unit 141 is not physically connected to the coil to be processed, the host computer 200 generates a prompt information to prompt the user to determine whether the current output unit 141 is connected to the coil to be processed.

[0061] If the host computer 200 determines that the connection state is abnormal based on the connection information, and the connection state abnormality is that the coil to be processed is physically connected, but cannot perform data transmission with the coil to be processed, the host computer 200 sends a self-check instruction to the control unit 121 through the communication unit 122, the control unit 121 performs self-check reset on the multi-channel constant current source device 100, if the reset is successful, the subsequent adjustment process is continued and the self-check reset result and the subsequent adjustment scheme are sent to the host computer 200, if the reset is unsuccessful, the self-check reset result is fed back to the host computer 200, and the host computer 200 generates a prompt information to prompt the user to perform corresponding processing.

[0062] If the host computer 200 determines that the connection state is normal based on the connection information, the host computer 200 determines the preset processing process parameters according to the parameter information of the coil to be processed, which includes but is not limited to the model, size, power requirement, etc. of the coil to be processed. The processing process parameters corresponding to different models of coils to be processed may or may not be the same. The host computer 200 generates a control instruction based on the connection information and the preset processing process parameters.

[0063] The control module 120 controls the power adjusting module 130 to adjust based on the control instruction, that is, each power adjusting unit 131 in the embodiment independently controls each current output unit 141. The host computer 200 can also determine the appropriate processing process parameters based on the coil to be processed connected to each current output unit 141. The model type of the coil to be processed connected to the same multi-channel constant current source device 100 is not limited and can be the same or different, so that the multi-channel constant current source device 100 is more suitable.

[0064] In one embodiment, the multi-channel constant current source device further comprises a heat dissipation module, the heat dissipation module comprises a plurality of heat dissipation units, the heat dissipation units correspond one-to-one to the power adjusting units 131, and the heat dissipation units include but are not limited to fans. The control module 120 sends a heat dissipation unit start instruction to the heat dissipation module based on the working state of the plurality of power adjusting units 131, and the heat dissipation units corresponding to the plurality of power adjusting units 131 respectively start running to dissipate heat. Similarly, the plurality of heat dissipation units are independently connected to and controlled by each power adjusting unit 131.

[0065] The application provides a multi-channel constant current source system, which comprises a terminal device and a multi-channel constant current source device of any one of the above embodiments. The terminal device is in communication connection with the host computer 200. The host computer 200 acquires historical working information of at least one multi-channel constant current source device 100 and sends the historical working information to the terminal device. The historical working information of the multi-channel constant current source device 100 includes an adjustment scheme for each coil to be processed connected to the multi-channel constant current source device 100. The adjustment scheme includes the current working intensity of each current output unit 141 and the current amplitude adjusted by the power adjusting unit 131 based on the current working intensity.

[0066] The terminal device determines the current adjustment times and current adjustment amplitudes of the target multi-channel constant current source device 100 according to the historical working information, determines the working state of each current output unit 141 and the processing scheme of each coil to be processed according to the current adjustment times and current adjustment amplitudes of the target multi-channel constant current source device 100, and generates a process evaluation report of the target multi-channel constant current source device 100. Based on the working state of each current output unit 141, it can be determined whether the current output unit 141 is faulty. For example, for a certain current output unit 141, the adjustment times and amplitudes when processing the coil to be processed are greater than those when processing the coil to be processed before, so it can be determined that the related circuit and components of the current output unit 141 may be faulty, and then targeted inspection and processing are performed. Based on the processing scheme of the coil to be processed, it can be determined whether the determined processing process parameters are appropriate.

[0067] In the embodiment, the terminal device is in communication connection with the host computer 200. The terminal device obtains historical working information of at least one multi-channel constant current source device 100, performs fault analysis on the multi-channel constant current source device 100 based on the historical working information, and timely and effectively locates the fault point in a targeted manner.

[0068] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0069] The computer device includes a processor, a memory and a network interface connected through a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The network interface of the computer device is used to communicate with external computer devices through network connection. The computer program is executed by the processor to implement the scheme of the present application.

[0070] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware, and the computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, the processes of the above-mentioned embodiments of each method can be included. Any reference to memory, storage, database or other medium used in each embodiment provided by the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0071] Each technical feature of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of each technical feature in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0072] The above has carried out the detailed introduction to the multi-channel constant current source device and system provided by the embodiment of the present application, the principle and implementation mode of the present application have been described in this paper by applying specific examples, the above embodiment is only used to help understanding the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will have the change, in view of the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A multi-channel constant current source apparatus, characterized by comprising: The device comprises: a power module; a control module electrically connected to the power module, the control module comprising a control unit and a communication unit, the communication unit being in communication connection with the control unit and an upper computer; a power regulating module electrically connected to the power module and the communication unit, the power regulating module being provided with a plurality of parallel power regulating units; a power output module electrically connected to the power regulating module, the power output module being provided with a plurality of current output units, each current output unit being in one-to-one connection with a power regulating unit, the current output units being used for connecting to coils to be processed, and each current output unit being connected to at most one coil to be processed; the power module supplies power to the control module and the power regulating module separately in layers, the power supply in layers comprising two power supplies, the first power supply being for supplying power to the control module, and the control module being started; the upper computer acquires connection information of the current output units and the coils to be processed detected by the control unit through the communication unit, and generates a control instruction based on the connection information and preset processing process parameters, and sends the control instruction to the control unit through the communication unit; the second power supply is for supplying power to the power regulating module, and the power regulating module is started, the control unit analyzes the control instruction to determine target working parameters of each current output unit, and sends the target working parameters to each power regulating unit through the communication unit; each power regulating unit adjusts the current output units to output target current intensity according to the target working parameters; the power regulating unit comprises a circuit breaker, an external relay, a communication loop, a solid-state relay, an AC-DC power conversion module, and a power loop; an input end of the circuit breaker is connected to an AC power supply, and an output end of the circuit breaker is connected to the communication loop; the output end of the circuit breaker, the external relay, and an input end of the solid-state relay are connected, and the solid-state relay is closed when the circuit breaker and the external relay are both closed; an output end of the solid-state relay is connected to an input end of the AC-DC power conversion module, and an output end of the AC-DC power conversion module is connected to the power loop; the communication loop is connected to the power loop, and the communication loop is used for reading working conditions of the power loop and controlling output of the power loop.

2. The multi-channel constant current source device of claim 1, wherein, the power module comprises a first power input unit and a second power input unit, the control module is electrically connected to the first power input unit, and the power regulating module is electrically connected to the second power input unit.

3. The multi-channel constant current source device of claim 1, wherein, when the communication loop and the power loop are in a normal working condition, if the solid-state relay is opened, the communication loop reports an error; after the solid-state relay is closed again, the power loop enters a standby state.

4. The multi-channel constant current source device according to claim 1, wherein: the control unit acquires current working intensity of each current output unit through the communication unit every preset period. The control unit controls the power regulating unit to adjust based on the target current intensity of each current output unit and the current working intensity, so that the current output unit outputs the target current intensity.

5. The multi-channel constant current source device of claim 4, wherein, The control unit obtains the adjustment scheme of each power regulating unit for the current output unit and sends to the host computer through the communication unit.

6. The multi-channel constant current source device according to claim 1, characterized in that: The host computer obtains connection information of a plurality of multi-channel constant current source devices and coils to be processed. If the host computer determines that the connection state is abnormal based on the connection information, the host computer sends a self-checking instruction to the control unit through the communication unit, and the control unit performs self-checking on the multi-channel constant current source device. If the host computer determines that the connection state is normal based on the connection information, the host computer determines the preset processing process parameters according to the parameter information of the coil to be processed. The host computer generates the control instruction based on the connection information and the preset processing process parameters.

7. The multi-channel constant current source device of claim 1, wherein, The multi-channel constant current source device further comprises a heat dissipation module, and the heat dissipation module comprises a plurality of heat dissipation units, which are in one-to-one correspondence with the power regulating units.

8. A multi-channel constant current source system, characterized by, The system comprises a terminal device, a host computer, and at least one multi-channel constant current source device according to any one of claims 1 to 7, the terminal device is in communication connection with the host computer, the host computer obtains historical working information of the multi-channel constant current source device, and sends the historical working information to the terminal device.

9. The multi-channel constant current source system of claim 8, wherein, The terminal device determines the current adjustment frequency and current adjustment amplitude of the target multi-channel constant current source device according to the historical working information, and determines the process evaluation report of the target multi-channel constant current source device according to the current adjustment frequency and current adjustment amplitude of the target multi-channel constant current source device.

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