Signal acquisition system

Abstract

The present application relates to a signal acquisition system. The system includes: a controller that controls an intermediate connection module through a processing module to select different signal transmission channels, and establishes multiple signal transmission channels through the intermediate connection module, eliminating the need to separately add multiple independent acquisition lines. Compared with the independent acquisition lines in the prior art, this system reduces the number of components corresponding to each acquisition line, saving hardware costs and reducing occupied space. Moreover, the controller switches the signal transmission channels by controlling the intermediate connection module and does not directly interact with the signal acquisition module. Therefore, when the controller switches the signal transmission channels, it does not interfere with the acquisition of analog signals by the signal acquisition module, thereby improving the acquisition accuracy of the analog signals.

Description

Technical Field

[0001] The present application relates to the field of electronic information technology, and in particular to a signal acquisition system. Background Art

[0002] Most of the existing signal collectors can only detect a single signal, but a single signal acquisition channel can no longer meet production needs. In some scenarios, it is necessary to collect key signals while also collecting some related signals synchronously. Some existing systems use multiple sensors to collect signals simultaneously. Each acquisition circuit is relatively independent, and each acquisition circuit interacts directly with the controller to select different acquisition lines. However, the circuit connection structure of this method may have the risk of line coupling interference, that is, when the controller selects the acquisition line, it will interfere with the acquisition signal of the acquisition line, resulting in low acquisition accuracy. Summary of the Invention

[0003] In order to solve the technical problem of low signal acquisition accuracy of the above-mentioned multi-channel acquisition circuit, the present application provides a signal acquisition system.

[0004] The present application provides a signal acquisition system, comprising:

[0005] A controller, configured to generate a corresponding control signal according to a received input instruction;

[0006] a processing module, electrically connected to the controller, and configured to convert the control signal into a register signal;

[0007] an intermediate connection module, electrically connected to the processing module and establishing multiple signal transmission channels with the signal acquisition module, for opening a target transmission channel according to the register signal, wherein the target transmission channel includes at least one of the signal transmission channels;

[0008] The signal acquisition module is used to obtain multiple different acquisition analog signals and transmit the acquisition analog signals to the processing module through the target transmission channel and the intermediate connection module in sequence. Each signal transmission channel is used to transmit one acquisition analog signal.

[0009] Optionally, the intermediate connection module includes a multiplexer, multiple input ends of the multiplexer are electrically connected to the signal acquisition module, and are used to establish multiple signal transmission channels between the signal acquisition module, and the output end of the multiplexer is electrically connected to the processing module.

[0010] Optionally, the input end of the multiplexer includes a first input end and a second input end arranged in a pair, the first input end is electrically connected to the signal acquisition module to form a first circuit, and the second input end is electrically connected to the signal acquisition module to form a second circuit, and the first circuit and the second circuit constitute a signal transmission channel.

[0011] Optionally, the intermediate connection module includes a first resistor and a second resistor, the first node on the first circuit is also electrically connected to the positive pole of the analog signal source via the first resistor, and the second node on the second circuit is also electrically connected to the negative pole of the analog signal source via the second resistor.

[0012] Optionally, the processing module includes a gain amplifier, each expansion port of the gain amplifier is respectively connected to each signal output end of the multiplexer, the number of the expansion ports is the same as the number of control lines corresponding to the register signal, the signal transmission end of the gain amplifier is electrically connected to the controller, the number of the signal transmission ends is the same as the number of control lines corresponding to the control signal, the first power supply end of the gain amplifier is electrically connected to the positive pole of the analog signal source, and the second power supply end of the gain amplifier is electrically connected to the negative pole of the analog signal source.

[0013] Optionally, the gain amplifier is further configured to convert the collected analog signal from the multiplexer into a collected digital signal, and send the collected digital signal to the controller.

[0014] Optionally, the processing module further includes an isolation chip, a first end of the isolation chip being electrically connected to the gain amplifier, and a second end of the isolation chip being electrically connected to the controller, for isolating the acquired digital signal and the acquired analog signal from the gain amplifier, and only transmitting the acquired digital signal to the controller.

[0015] Optionally, the controller is further configured to perform burnout detection based on the received collected digital signal to obtain a corresponding burnout detection result.

[0016] Optionally, the controller determines that the corresponding burnout detection result is burnout when the voltage value corresponding to the collected digital signal is greater than or equal to a preset voltage value.

[0017] Optionally, when the voltage value corresponding to the collected digital signal is less than a preset voltage value, the controller determines that the corresponding burnout detection result is not burnout.

[0018] Based on the above-mentioned signal acquisition system, the controller controls the intermediate connection module through the processing module to select different signal transmission channels, and establishes multiple signal transmission channels through the intermediate connection module. There is no need to add multiple independent acquisition lines separately. Compared with the independent acquisition lines in the prior art, the components corresponding to each acquisition line are reduced, the hardware cost is saved and the occupied space is reduced. The controller switches the signal transmission channel by controlling the intermediate connection module and does not directly interact with the signal acquisition module. Therefore, when the controller switches the signal transmission channel, it will not interfere with the signal acquisition module in obtaining the acquired analog signal, thereby improving the acquisition accuracy of the acquired analog signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0022] Figure 2 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0023] Figure 3 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0024] Figure 4 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0025] Figure 5 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0026] Figure 6 Schematic diagram of the structure of a signal acquisition system in one embodiment;

[0027] Figure 7 FIG. 1 is a structural diagram of a signal acquisition system in one embodiment. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In one embodiment, referring to Figure 1 , provides a signal acquisition system, the signal acquisition system specifically comprising:

[0030] The controller 110 is configured to generate a corresponding control signal according to a received input instruction.

[0031] Specifically, the controller 110 can be any device or integrated circuit capable of controlling data signals. An input instruction is a command initiated by a user to the controller 110 by operating a control device. The input instruction is used to request the activation of a target transmission channel. The control device can be a terminal or other device capable of writing instructions to the controller 110. The controller 110 generates a corresponding control signal based on the input instruction. The control signal is a digital signal that indicates the activation number of the target transmission channel. For example, if the control signal is 100, which is the activation number of the first transmission channel, the target transmission channel is determined to be the first transmission channel, and the control signal is used to activate the first transmission channel.

[0032] The processing module 120 is electrically connected to the controller 110 and is configured to convert the control signal into a register signal.

[0033] Specifically, the processing module 120 can be any device or integrated circuit with a signal processing function. The processing module 120 is used to expand and convert the control signal, that is, to convert it into a register signal corresponding to each second-order control circuit. Each register signal is used to control a second-order control circuit. The second-order control circuit is a circuit formed by connecting the processing module 120 and the intermediate connection module 130, such as Figure 2As shown, the number of second-order control lines is the same as the number of signal transmission channels, and the control signal is transmitted to the processing module 120 through the first-order control line. The number of first-order control lines is less than the number of second-order control lines. Referring to the above example, the control signal is 100, wherein the first digit corresponds to the enable signal, the second digit corresponds to the first first-order control line (AIN0), and the third digit corresponds to the second first-order control line (AIN1), that is, the number of first-order control lines corresponding to the control signal is 2. The processing module 120 converts the control signal into a register signal. The number of second-order control lines corresponding to the register signal is equal to the number of signal transmission channels. For example, if the number of signal transmission channels is 4, the number of second-order control lines corresponding to the register signal is also 4, that is, the processing module 120 converts the control signal corresponding to the two control lines into register signals corresponding to the four control lines, thereby expanding the number of control paths corresponding to the control signal to accurately control the on-off state of each signal transmission channel.

[0034] The intermediate connection module 130 is electrically connected to the processing module 120 and establishes multiple signal transmission channels with the signal acquisition module 140, and is used to open the target transmission channel according to the register signal, and the target transmission channel includes at least one of the signal transmission channels.

[0035] Specifically, the intermediate connection module 130 can be any device or integrated circuit that provides multiple transmission ports. Multiple control lines are established between the intermediate connection module 130 and the processing module 120, and multiple signal transmission channels are established between the intermediate connection module 130 and the signal acquisition module 140. The multiple control lines between the intermediate connection module 130 and the processing module 120 correspond one-to-one to each signal transmission channel. The intermediate connection module 130 is used to determine the on-off state corresponding to each signal transmission channel according to the register signal, and is mainly used to update the on-off state of the target transmission channel to the on state, that is, to turn on the target transmission channel. The target transmission channel is used to transmit the collected analog signal obtained by the signal acquisition module 140 to the intermediate connection module 130 in the on state. For scenarios requiring multiple different collected analog signals, the target transmission channel includes multiple signal transmission channels, and each signal transmission channel is used to transmit a collected analog signal in the on state.

[0036] The signal acquisition module 140 is used to acquire multiple different acquisition analog signals and transmit the acquisition analog signals to the processing module 120 through the target transmission channel and the intermediate connection module 130 in sequence. Each signal transmission channel is used to transmit one acquisition analog signal.

[0037] Specifically, the signal acquisition module 140 can be a temperature sensor, a thermocouple, or other sensors or devices with detection functions. In this embodiment, the signal acquisition module 140 is a temperature sensor for sensing the ambient temperature, that is, multiple different acquired analog signals include key signals for indicating the ambient temperature and other related signals. Each acquired analog signal is transmitted to the intermediate connection module 130 through a signal transmission channel.

[0038] Based on the above-mentioned signal acquisition system, the controller 110 controls the intermediate connection module 130 through the processing module 120 to select different signal transmission channels, and establishes multiple signal transmission channels through the intermediate connection module 130. There is no need to add multiple independent acquisition lines separately. Compared with the independent acquisition lines in the prior art, the components corresponding to each acquisition line are reduced, the hardware cost is saved and the occupied space is reduced. The controller 110 switches the signal transmission channel by controlling the intermediate connection module 130, and does not directly interact with the signal acquisition module 140. Therefore, when the controller 110 switches the signal transmission channel, it will not interfere with the signal acquisition module 140 to obtain the acquired analog signal, thereby improving the acquisition accuracy of the acquired analog signal.

[0039] In one embodiment, the intermediate connection module 130 includes a multiplexer 1301, and multiple input ends of the multiplexer 1301 are electrically connected to the signal acquisition module 140, so as to establish multiple signal transmission channels with the signal acquisition module 140, and the output end of the multiplexer 1301 is electrically connected to the processing module 120.

[0040] Specifically, each input terminal of the multiplexer 1301 is electrically connected to the signal output terminal of the signal acquisition module 140 to establish multiple signal transmission channels, and each signal output terminal of the multiplexer 1301 is electrically connected to each expansion port (GPIO) of the processing module 120 to establish a second-order control circuit, such as Figure 3 As shown, the number of control lines between the multiplexer 1301 and the processing module 120 is equal to the number of signal transmission channels between the multiplexer 1301 and the signal acquisition module 140. Thus, the multiplexer 1301 receives the register signal transmitted by the processing module 120 through the control line, and opens the signal transmission channel corresponding to the register signal to transmit the collected analog signal output by the signal acquisition module 140 to the multiplexer 1301. That is, the process of the controller 110 indirectly controlling the multiplexer 1301 has no interactive influence on the process of transmitting the collected analog signal to the multiplexer 1301 through the signal transmission channel, thereby avoiding interference of the channel switching process on the collected analog signal, thereby improving the accuracy of the collected analog signal.

[0041] In one embodiment, the input end of the multiplexer 1301 includes a first input end and a second input end arranged in a pair, the first input end is electrically connected to the signal acquisition module 140 to form a first circuit, and the second input end is electrically connected to the signal acquisition module 140 to form a second circuit, and the first circuit and the second circuit constitute a signal transmission channel.

[0042] Specifically, the multiple input terminals of the multiplexer 1301 are arranged in pairs, i.e., they include multiple first input terminals and paired matching second input terminals. The signal acquisition module 140 is a temperature sensor. Each first input terminal is electrically connected to the signal output terminal of the temperature sensor to establish multiple first circuits. Each second input terminal is electrically connected to the signal output terminal of the temperature sensor to establish multiple second circuits. A first circuit and a second circuit are combined to form a signal transmission channel, i.e., the signal transmission channel transmits the collected analog signal in a differential manner through two circuits, thereby improving the signal-to-noise ratio of the signal acquisition system, i.e., improving the reliability of the collected analog signal. Figure 4 As shown, 1A-nA are used to indicate different first lines, and 1B-nB are used to indicate different second lines.

[0043] For example, when the number of signal transmission channels is 4, the control strategies corresponding to the control signals are shown in the following table:

[0044] EN AIN0 AIN1 state 0 / / All channels closed 1 0 0 Lines 1A and 1B open 1 0 1 Lines 2A and 2B open 1 1 0 Lines 3A and 3B open 1 1 1 Lines 4A and 4B open

[0045] Among them, EN is used to indicate the enable signal, 1A, 2A, 3A, and 4A respectively indicate a first line, 1B, 2B, 3B, and 4B respectively indicate a second line, that is, 1A and 1B are combined to form a first transmission channel, 2A and 2B are combined to form a second transmission channel, 3A and 3B are combined to form a third transmission channel, and 4A and 4B are combined to form a fourth transmission channel. When the enable signal in the control signal is 0, it means that the control signal is used to shut down all signal transmission channels, that is, the collected analog signal detected by the temperature sensor is prohibited from being transmitted to the multiplexer 1301; when the enable signal is 1, AIN0 is 0, and AIN1 is When it is 0, it indicates that the control signal is used to open the first transmission channel, that is, to open the 1A line and the 1B line at the same time; when the enable signal is 1, AIN0 is 0, and AIN1 is 1, it indicates that the control signal is used to open the second transmission channel, that is, to open the 2A line and the 2B line at the same time; when the enable signal is 1, AIN0 is 1, and AIN1 is 0, it indicates that the control signal is used to open the third transmission channel, that is, to open the 3A line and the 3B line at the same time; when the enable signal is 1, AIN0 is 1, and AIN1 is 1, it indicates that the control signal is used to open the fourth transmission channel, that is, to open the 4A line and the 4B line at the same time.

[0046] That is, each signal transmission channel has a corresponding switch control signal. Similarly, when there are more signal transmission channels, the number of managed signal transmission channels is increased by adding the number of digital bits in the control signal to achieve multi-channel on-off switching management.

[0047] In one embodiment, the intermediate connection module 130 includes a first resistor and a second resistor, the first node on the first circuit is also electrically connected to the positive pole of the analog signal source via the first resistor, and the second node on the second circuit is also electrically connected to the negative pole of the analog signal source via the second resistor.

[0048] Specifically, the first node on each first circuit also needs to be electrically connected to the positive electrode of the analog signal source via the first resistor. The first node can be any node on the first circuit. The second node on each second circuit also needs to be electrically connected to the negative electrode of the analog signal source via the second resistor. The second node can be any node on the second circuit. Figure 5 As shown, only the connection relationship between the 1A line and the 1B line and the resistors is shown, where R1 is used to indicate the first resistor, R2 is used to indicate the second resistor, AVDD is used to indicate the positive pole of the analog signal source, and AVSS is used to indicate the negative pole of the analog signal source. Referring to the connection relationship between 1A and 1B and the resistors, a resistor is connected to each of the two lines in each signal transmission channel, and the first resistor and the second resistor are resistors with the same resistance value. By setting two resistors of equal size on the two lines in the same signal transmission channel, it is ensured that the potential at the temperature sensor is zero potential, that is, it is ensured that the collected analog signal collected by the temperature sensor will not be affected by the potential of the temperature sensor, so as to improve the accuracy of the collected analog signal.

[0049] In one embodiment, the processing module 120 includes a gain amplifier 1201, each expansion port of the gain amplifier 1201 is respectively connected to each signal output end of the multiplexer 1301, the number of the expansion ports is the same as the number of control lines corresponding to the register signal, the signal transmission end of the gain amplifier 1201 is electrically connected to the controller 110, the number of the signal transmission ends is the same as the number of control lines corresponding to the control signal, the first power supply end of the gain amplifier 1201 is electrically connected to the positive pole of the analog signal source, and the second power supply end of the gain amplifier 1201 is electrically connected to the negative pole of the analog signal source.

[0050] Specifically, the gain amplifier 1201 may be an AD chip, such as Figure 6As shown, each extension port of the gain amplifier 1201 is electrically connected to a signal output terminal of the multiplexer 1301, that is, the extension ports of the gain amplifier 1201 are connected one-to-one with the signal output terminals of the multiplexer 1301 to form multiple control circuits. The control circuits formed between the gain amplifier 1201 and the multiplexer 1301 correspond one-to-one to each signal transmission channel, that is, a control circuit between the gain amplifier 1201 and the multiplexer 1301 is used to transmit a register signal that controls the channel state corresponding to a signal transmission channel.

[0051] In one embodiment, the gain amplifier 1201 is further configured to convert the collected analog signal from the multiplexer 1301 into a collected digital signal, and send the collected digital signal to the controller 110 .

[0052] Specifically, the previous embodiment proposes that the gain amplifier 1201 is used to convert the control signal into a register signal corresponding to a larger number of control lines in the switching control process of the signal transmission channel of the controller 110. During the transmission process of the collected analog signal, the gain amplifier 1201 is also used to perform analog-to-digital conversion on the collected analog signal sent by the multiplexer 1301 to obtain a collected digital signal, and send the converted collected digital signal to the controller 110. The controller 110 can determine the ambient temperature based on the collected digital signal.

[0053] In one embodiment, the processing module 120 further includes an isolation chip 1202, a first end of the isolation chip 1202 being electrically connected to the gain amplifier 1201, and a second end of the isolation chip 1202 being electrically connected to the controller 110, for isolating the collected digital signal and the collected analog signal from the gain amplifier 1201, and only transmitting the collected digital signal to the controller 110.

[0054] Specifically, such as Figure 7 As shown, an isolation chip 1202 is further connected between the gain amplifier 1201 and the controller 110. The isolation chip 1202 is used to isolate the collected analog signal during the transmission of the collected digital signal, that is, only transmit the collected digital signal to the controller 110, thereby preventing the analog signal from interfering with the collected digital signal, and further improving the accuracy of the collected digital signal obtained by the controller 110. The isolation chip 1202 can specifically be a chip with model number NSiP8841W1.

[0055] In one embodiment, the controller 110 is further configured to perform burnout detection based on the received collected digital signal to obtain a corresponding burnout detection result.

[0056] Specifically, when the controller 110 receives the collected digital signal, since the collected digital signal is used to indicate the ambient temperature, the collected digital signal can be used for burnout detection. Usually, when components in the signal acquisition system are burned, the ambient temperature of the signal acquisition system is higher than the ignition point temperature of ordinary components. Therefore, it is possible to determine whether the signal acquisition system is burned based on the collected digital signal, and obtain the corresponding burnout detection result, that is, the burnout detection result includes burned and not burned. Burned indicates that components in the signal acquisition system are burned, and not burned indicates that the operating temperature of each component in the signal acquisition system is normal and no burnout occurs.

[0057] The controller 110 can also further initiate a burnout alarm based on the burnout detection results. The burnout alarm methods include flashing lights and whistle prompts, voice broadcasts, email prompts, text message prompts, telephone prompts, video prompts, etc., to remind users that components in the signal acquisition system have burned out, and to take corresponding remedial measures in time to avoid further deterioration of the burnout phenomenon and cause more serious losses.

[0058] In one embodiment, the controller 110 determines that the corresponding burnout detection result is burnout when the voltage value corresponding to the collected digital signal is greater than or equal to a preset voltage value.

[0059] Specifically, the controller 110 compares the voltage value corresponding to the received collected digital signal with the preset voltage value. The preset voltage value is used to indicate the voltage value detected by the temperature sensor when the component is burned. It can be customized according to the ignition point temperature of each component in the signal acquisition system. When the voltage value corresponding to the collected digital signal is greater than or equal to the preset voltage value, it indicates that the current ambient temperature of the signal acquisition system is higher than the normal temperature, that is, there is a component burnt phenomenon, and therefore the burn detection result is determined to be burned.

[0060] In one embodiment, the controller 110 determines that the corresponding burnout detection result is not burnout when the voltage value corresponding to the collected digital signal is less than a preset voltage value.

[0061] Specifically, when the voltage value corresponding to the collected digital signal is less than the preset voltage value, it indicates that the current ambient temperature of the signal acquisition system is normal, that is, there is no component burnout, and therefore the burnout detection result is determined to be no burnout.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, system, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, system, article or device. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, system, article or device that includes the element.

[0063] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily 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 is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A signal acquisition system, characterized in that: The system comprises: A controller, configured to generate a corresponding control signal according to a received input instruction; a processing module electrically connected to the controller, configured to receive the control signal via the first-order control circuit and convert the control signal into register signals corresponding to respective second-order control circuits, wherein each register signal is configured to control a second-order control circuit. The second-order control circuit is a circuit formed by connecting the processing module and the intermediate connection module. The number of the second-order control circuits is the same as the number of the signal transmission channels, and the number of the first-order control circuits is less than the number of the second-order control circuits. an intermediate connection module, electrically connected to the processing module and establishing multiple signal transmission channels with the signal acquisition module, for opening a target transmission channel according to the register signal, wherein the target transmission channel includes at least one of the signal transmission channels; The signal acquisition module is used to acquire a plurality of different acquisition analog signals and transmit the acquisition analog signals to the processing module in sequence through the target transmission channel and the intermediate connection module, each of the signal transmission channels being used to transmit one acquisition analog signal; The intermediate connection module includes a multiplexer, and multiple input ends of the multiplexer are electrically connected to the signal acquisition module to establish multiple signal transmission channels with the signal acquisition module. The output end of the multiplexer is electrically connected to the processing module; the input ends of the multiplexer include a first input end and a second input end arranged in a pair, the first input end is electrically connected to the signal acquisition module to form a first circuit, and the second input end is electrically connected to the signal acquisition module to form a second circuit, and the first circuit and the second circuit constitute one of the signal transmission channels; the intermediate connection module includes a first resistor and a second resistor, a first node on the first circuit is also electrically connected to the positive electrode of the analog signal source via the first resistor, and a second node on the second circuit is also electrically connected to the negative electrode of the analog signal source via the second resistor.

2. The system according to claim 1, wherein: The processing module includes a gain amplifier, each expansion port of the gain amplifier is respectively connected to each signal output end of the multiplexer, the number of the expansion ports is the same as the number of control lines corresponding to the register signal, the signal transmission end of the gain amplifier is electrically connected to the controller, the number of the signal transmission ends is the same as the number of control lines corresponding to the control signal, the first power supply end of the gain amplifier is electrically connected to the positive pole of the analog signal source, and the second power supply end of the gain amplifier is electrically connected to the negative pole of the analog signal source.

3. The system according to claim 2, characterized in that The gain amplifier is further configured to convert the collected analog signal from the multiplexer into a collected digital signal, and send the collected digital signal to the controller.

4. The system according to claim 3, characterized in that The processing module also includes an isolation chip, a first end of which is electrically connected to the gain amplifier, and a second end of which is electrically connected to the controller, for isolating the collected digital signal from the gain amplifier and the collected analog signal, and only transmitting the collected digital signal to the controller.

5. The system according to claim 4, characterized in that The controller is further configured to perform burnout detection based on the received collected digital signal to obtain a corresponding burnout detection result.

6. The system according to claim 5, characterized in that The controller determines that the corresponding burnout detection result is burnout when the voltage value corresponding to the collected digital signal is greater than or equal to a preset voltage value.

7. The system according to claim 5, characterized in that The controller determines that the corresponding burnout detection result is not burned out when the voltage value corresponding to the collected digital signal is less than a preset voltage value.

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