Plug module identification circuit, plug device and electronic equipment

Abstract

The utility model discloses a plugging module identification circuit, a plugging device and an electronic device, the plugging module identification circuit comprises a to-be-detected identification unit, and the to-be-detected identification unit comprises a plurality of connecting ends; the detection and identification unit comprises a plurality of identification ends corresponding to the plurality of connection ends, the plurality of identification ends are used for being electrically connected with the plurality of connection ends, the detection and identification unit is used for generating a plurality of insertion signals, the main controller is electrically connected with the detection and identification unit, and the main controller is configured to receive the plurality of insertion signals generated by the detection and identification unit. And the plurality of connection ends are compared with preset identification information to detect whether the plurality of connection ends are correctly and electrically connected with the plurality of identification ends or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to integrated circuit technical field, especially a kind of plug module identification circuit, plug device and electronic equipment. BACKGROUND

[0002] With the rapid development of electronic technology, pluggable modules (such as memory cards, function modules, etc.) are widely used in various electronic product devices. These modules are connected to the host device through a plug connector to achieve data interaction, with the characteristics of flexibility and scalability, and have become an important part of many devices. In order to ensure the normal use of pluggable modules, the device usually sets an insertion detection mechanism to determine whether the module has been correctly inserted through an insertion detection signal, thereby improving the stability and reliability of the system.

[0003] In related technologies, a common insertion detection scheme is to design an insertion pin on the module. When the module is inserted into the connector, the insertion detection signal will change, and the host device determines the insertion or removal state of the module according to the change in the signal. For example, the insertion detection signal can indicate the module insertion state through a closed circuit path, or feedback the module insertion information through a change in the signal level. This method has been widely used in single connector scenarios.

[0004] However, when the connection module is long, a single insertion detection signal may not be able to completely guarantee the reliable connection of all connectors. For example, in a long connector, the module may be inserted at an angle, which may cause the module to be connected to one end of the connector, while the other end may be connected correctly. SUMMARY

[0005] The main purpose of the utility model is to provide a plug module identification circuit, which aims to solve the problem that the module may not be correctly inserted into the socket in a long connector.

[0006] To achieve the above purpose, the utility model provides a plug module identification circuit, which comprises:

[0007] A to-be-detected identification unit, the to-be-detected identification unit comprises a plurality of connection ends;

[0008] A detection identification unit comprising a plurality of identification ends corresponding to the plurality of connection ends, the plurality of identification ends are used to electrically connect the plurality of connection ends, and the detection identification unit is used to generate a plurality of insertion signals.

[0009] A main controller, which is electrically connected to the detection and identification unit, is configured to receive a plurality of insertion signals generated by the detection and identification unit and compare them with preset identification information to detect whether the plurality of connection ends are correctly electrically connected to the plurality of identification ends.

[0010] In some embodiments, the ratio of the number of connection ends to the number of identification ends is 1:1.

[0011] In some embodiments, the number of connection ends is an even number and the number of identification ends is an even number.

[0012] In some embodiments, the number of connection ends is two and the number of identification ends is two.

[0013] In some embodiments, the number of connection ends is four and the number of identification ends is four.

[0014] In some embodiments, the number of connection ends is six and the number of identification ends is six.

[0015] In some embodiments, the number of connection ends is an odd number and the number of identification ends is an odd number.

[0016] In some embodiments, the number of connection ends is three and the number of identification ends is three.

[0017] In some embodiments, the number of connection ends is five and the number of identification ends is five.

[0018] In some embodiments, the number of connection ends is seven and the number of identification ends is seven.

[0019] In some embodiments, the main controller includes a plurality of feedback ends corresponding to the plurality of identification ends, and the plurality of feedback ends are electrically connected to the plurality of identification ends. The main controller obtains a plurality of insertion signals generated by the detection and identification unit through the plurality of feedback ends.

[0020] In some embodiments, the plug-in module identification circuit further comprises a signal stabilizer, and each feedback end is electrically connected to the signal stabilizer.

[0021] In some embodiments, the signal stabilizer comprises a plurality of pull-up resistors, the first ends of the plurality of pull-up resistors are electrically connected to a power supply, the second ends of the plurality of pull-up resistors are respectively electrically connected to the plurality of identification ends, and the plurality of connection ends are grounded.

[0022] In some embodiments, the signal stabilizer comprises a plurality of pull-down resistors, the first ends of the plurality of pull-down resistors are grounded, the second ends of the plurality of pull-down resistors are respectively electrically connected to the plurality of identification ends, and the plurality of connection ends are electrically connected to a power supply.

[0023] The utility model further puts forward a plug and pull device, including the plug and pull module identification circuit of preceding embodiment.

[0024] The utility model further still puts forward an electronic equipment, including the plug and pull device of preceding embodiment.

[0025] The utility model discloses the beneficial effect of technical scheme is in: when the multiple connecting ends of the detection and identification unit are electrically connected with the multiple identification ends of the detection and identification unit, the detection and identification unit generates multiple insertion signals and feeds back to the main controller, the main controller detects multiple insertion signals, and compares it with the preset identification information, can effectively judge whether the plug and pull module is correctly inserted, avoids the oblique insertion condition caused by the long connector, thereby improves the connection reliability of the connector both ends. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is module electric connection schematic drawing of plug and pull module identification circuit in an embodiment of the utility model;

[0027] Figure 2 It is module electric connection schematic drawing of plug and pull module identification circuit in another embodiment of the utility model;

[0028] Figure 3 It is circuit diagram of detection and identification unit in an embodiment of the utility model;

[0029] Figure 4 It is circuit diagram of main controller in an embodiment of the utility model;

[0030] Figure 5 It is circuit diagram of detection and identification unit in an embodiment of the utility model.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 100, detection and identification unit;A1, connecting end;

[0033] 200, detection and identification unit;A2, identification end;

[0034] 300, main controller;

[0035] 400, signal stabilizer;R1, pull-up resistor;R2, pull-down resistor.

[0036] The realization of the utility model, functional characteristics and advantages will be further explained with reference to the drawings. DETAILED DESCRIPTION

[0037] The scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0039] It should also be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can have a middle element.

[0040] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0041] At present, many electronic product devices will use pluggable modules, such as storage cards or function modules. In order to detect whether the plug-in device has been inserted, an insertion detection signal is usually set. When the pluggable module is inserted or pulled out, the system can detect the corresponding plug-in state through the signal, if the connector of the pluggable module is long, the connector may be inserted obliquely, at this time, it may cause one end to be connected, and the other end to be unreliable. In addition, if there are multiple connectors, it is also difficult to guarantee the reliable connection of all the connectors by relying on only one insertion detection signal. Therefore, the present application provides a pluggable module identification circuit to improve the connection reliability of the pluggable module. For details, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 .

[0042] The utility model embodiment proposes a plug module identification circuit, the plug module identification circuit includes:

[0043] The to be detected identification unit 100 includes a plurality of connection ends A1;

[0044] The detection identification unit 200 includes a plurality of identification ends A2 corresponding to a plurality of connection ends A1, and the plurality of identification ends A2 are used for electrically connecting the plurality of connection ends A1, and the detection identification unit 200 is used for generating a plurality of insertion signals.

[0045] The main controller 300 is electrically connected to the detection identification unit 200, and the main controller 300 is configured to receive the plurality of insertion signals generated by the detection identification unit 200 and compare the plurality of insertion signals with preset identification information to detect whether the plurality of connection ends A1 are correctly electrically connected to the plurality of identification ends A2.

[0046] In the embodiment, the to be detected identification unit 100 provides an electrical interface with the plug module and ensures the connection stability of the module. The to be detected identification unit 100 can be applied to different types of plug modules, such as a memory card, and the detection identification unit 200 can be applied to a socket (electrically connected to a host computer), such as a communication module, and the like, and a suitable connection mode is selected according to a specific application scenario to ensure the reliability and stability of the electrical connection.

[0047] The detection identification unit 200 includes a plurality of identification ends A2 corresponding to a plurality of connection ends A1 in the to be detected identification unit 100. The detection identification unit 200 converts the physical connection state of the plug module into an electrical signal to determine whether the module is correctly plugged in. The unit is electrically connected to the plurality of connection ends A1 of the to be detected identification unit 100, generates a plurality of insertion signals, and transmits the plurality of insertion signals to the main controller 300. The detection identification unit 200 can use different elements such as relays and resistance arrays to meet the needs of different application scenarios. For example, the plug module can be a multifunctional communication module, and each identification end A2 is used to determine the electrical connection integrity of the communication module.

[0048] The main controller 300 in the embodiment receives the plurality of insertion signals generated by the detection identification unit 200 and compares the plurality of insertion signals with preset identification information to detect whether the plurality of connection ends A1 are correctly electrically connected to the plurality of identification ends A2. The main controller 300 can use different alternatives such as a microcontroller (MCU) or a programmable logic controller (PLC) to select according to the complexity of the system and the actual application. After receiving the signal of the detection identification unit 200, the main controller 300 judges whether the module is correctly plugged in based on the identification signal to ensure the reliability and stability of the system.

[0049] In the embodiment, the working process of the plug-in module identification circuit can be divided into two main scenarios. First, taking a memory card as an example, in the case where the socket is not plugged in, the plurality of connection ends A1 have not established electrical connection with the plurality of identification ends A2, and the detection identification unit 200 will feed back the plurality of first signals to the host controller 300 through the plurality of identification ends A2, indicating the state of no module being plugged in. In this case, the host controller 300 receives the plurality of first signals, and can determine that the plug-in module has not been connected, and then executes the corresponding waiting or alarm prompt program.

[0050] When the plug-in module (such as a memory card) is inserted into the socket connected to the host, electrical connection is established between the to-be-detected identification unit 100 and the detection identification unit 200, and the detection identification unit 200 will generate a plurality of insertion signals (or the to-be-detected identification unit 100 can generate a plurality of insertion signals), and feed back to the host controller 300 through the plurality of identification ends A2. After the host controller 300 receives the plurality of insertion signals, the signals are compared with the preset identification information to detect whether the module is correctly plugged in. For example, assuming that there are six identification ends A2, when the six insertion signals received by the host controller 300 are consistent with the preset identification information, the host controller 300 will determine that the plug-in is correct, and execute the next operation (such as data reading and writing). If the number of detected insertion signals is four, which is inconsistent with the preset identification information, the host controller 300 will determine that the plug-in is not correct, and execute the processing program such as alarm prompt to ensure the reliability of the connection.

[0051] The technical scheme of the utility model has the advantages that when the plurality of connection ends A1 of the to-be-detected identification unit 100 are electrically connected with the plurality of identification ends A2 of the detection identification unit 200, the detection identification unit 200 generates a plurality of insertion signals and feeds back to the host controller 300, the host controller 300 detects the plurality of insertion signals, compares them with the preset identification information, can effectively determine whether the plug-in module is correctly plugged in, avoids the situation of inclined insertion caused by the long connector, and thus improves the connection reliability of the two ends of the connector. In addition, in the application scenario of multiple connectors, the utility model can realize reliable confirmation of each connector through signal detection of the plurality of identification ends A2, ensure reliable connection of each connection point, avoid system failure caused by local poor contact, and further improve the overall stability and safety of the equipment. At the same time, through the intelligent processing of the host controller 300, automatic plug-in state monitoring and alarm can be realized, the workload of manual inspection can be effectively reduced, the operation efficiency of the system can be improved, and the convenience of maintenance can be improved.

[0052] In some embodiments, the ratio of the number of connection ends A1 to the number of identification ends A2 is 1:1. The connection ends A1 of the to-be-detected identification unit 100 and the identification ends A2 of the detection identification unit 200 can adopt a one-to-one correspondence configuration mode, that is, the ratio of the number of connection ends A1 to the number of identification ends A2 is 1:1, for example, six connection ends A1 correspond to six identification ends A2, or seven connection ends A1 correspond to seven identification ends A2, and the like. This configuration mode is simple and clear in structure, ensures that each connection end A1 has an independent identification end A2 for paired detection, thereby improving the reliability of the plug-in module connection.

[0053] In the present embodiment, the to-be-detected identification unit 100 includes a plurality of connection ends A1, each of which corresponds to an identification end A2 in the detection identification unit 200. When the plug-in module is inserted, each connection end A1 will establish an electrical connection with the corresponding identification end A2, thereby generating an independent insertion signal. The host controller 300 can accurately determine whether the plug-in module has been correctly connected in place by receiving these independent insertion signals.

[0054] This one-to-one correspondence configuration mode can avoid detection errors caused by signal confusion in complex connection scenarios. For example, in a system with multiple connection ends A1 and identification ends A2, if the number of connection ends A1 and identification ends A2 does not match, some ports may not be correctly monitored, thereby causing a plug-in error. Through the one-to-one correspondence configuration mode, each connection end A1 can be accurately detected, ensuring stable connection of the module.

[0055] In addition, this one-to-one correspondence mode also simplifies the design and maintenance of the system. In the host controller 300, the insertion signal of each identification end A2 can be independently processed, so that the system has higher accuracy and flexibility in the detection process. When a certain identification end A2 fails, the host controller 300 can quickly identify the fault location and issue a corresponding alarm prompt, facilitating targeted inspection and maintenance by maintenance personnel, thereby improving the overall reliability and maintainability of the equipment.

[0056] In some embodiments, the number of connection ends A1 is an even number of connection ends A1, and the number of identification ends A2 is an even number of identification ends A2.

[0057] In some embodiments, the number of connection ends A1 is an even number of connection ends A1, and the number of identification ends A2 is an even number of identification ends A2.

[0058] In some embodiments, the number of connection ends A1 is an even number of connection ends A1, and the number of identification ends A2 is an even number of identification ends A2.

[0059] In some embodiments, the number of connection ends A1 is an even number of connection ends A1, and the number of identification ends A2 is an even number of identification ends A2.

[0060] In this embodiment, the connection end A1 of the detection and recognition unit 100 and the recognition end A2 of the detection and recognition unit 200 are both even numbers. These connection ends A1 and recognition ends A2 adopt a one-to-one corresponding configuration mode to ensure stable and reliable electrical connection. Specifically, the number ratio of connection ends A1 to recognition ends A2 is 1:1, for example:

[0061] The number of connection ends A1 is two, and the number of recognition ends A2 is also two.

[0062] The number of connection ends A1 is four, and the number of recognition ends A2 is also four.

[0063] The number of connection ends A1 is six, and the number of recognition ends A2 is also six.

[0064] This even number of connection ends A1 and recognition ends A2 design can provide a more symmetrical and balanced connection mode in structure, ensuring that each connection end A1 has a corresponding recognition end A2 for paired detection, thereby effectively improving the connection reliability of the plug-in module. In each configuration, the number of connection ends A1 and recognition ends A2 is even, ensuring the stability of the electrical characteristics of the module when inserted, avoiding signal interference and poor contact caused by asymmetric connection.

[0065] In addition, after receiving the signals of the even number of recognition ends A2, the main controller 300 can independently process each connection end A1, ensuring that the system has higher accuracy and stability during connection detection. When an abnormality or incorrect connection occurs in a recognition end A2, the main controller 300 can quickly identify the abnormality and issue an alarm prompt, thereby ensuring the overall safety and reliability of the system.

[0066] In some embodiments, the number of connection ends A1 is an odd number of connection ends A1, and the number of recognition ends A2 is an odd number of recognition ends A2;

[0067] Among them, the number of connection ends A1 is three, and the number of recognition ends A2 is three; or,

[0068] The number of connection ends A1 is five, and the number of recognition ends A2 is five; or,

[0069] The number of connection ends A1 is seven, and the number of recognition ends A2 is seven.

[0070] In this embodiment, the detection and recognition unit 100 includes a plurality of odd number of connection ends A1, and each connection end A1 corresponds to an odd number of recognition ends A2 in the detection and recognition unit 200. When the plug-in module is inserted, each connection end A1 will establish electrical connection with the corresponding recognition end A2, and the main controller 300 can accurately judge whether the plug-in module has been correctly connected in place by receiving these independent insertion signals.

[0071] This odd number design also facilitates system expansion and special connection requirements in specific scenarios. For example, in certain embedded devices, the odd number of connection terminals A1 can effectively reduce the occupation of system resources while providing sufficient channels for data transmission and functional expansion. When a device fails or needs to be upgraded, the main controller 300 can quickly detect which connection terminal A1 or identification terminal A2 is not working properly, facilitating quick problem location and repair, reducing system maintenance complexity.

[0072] In addition, by adopting an odd number of connection terminals A1 and identification terminals A2, the main controller 300 can independently process the signals of each identification terminal A2, ensuring higher accuracy and stability of the system during plug-in detection. When an identification terminal A2 is abnormal or not properly connected, the main controller 300 can issue a warning signal to prompt maintenance personnel to take timely measures, thereby improving the overall reliability and safety of the system.

[0073] Referring to Figure 3 In this embodiment, the main controller includes a plurality of feedback terminals corresponding one-to-one to the plurality of identification terminals A2, and the plurality of feedback terminals are electrically connected to the plurality of identification terminals A2. The main controller obtains the plurality of insertion signals generated by the detection identification unit 200 through the plurality of feedback terminals.

[0074] In this embodiment, the main controller includes a plurality of feedback terminals corresponding one-to-one to the plurality of identification terminals A2 in the detection identification unit 200. Specifically, each feedback terminal is electrically connected to an identification terminal A2, so that the main controller can obtain the insertion signals generated by the detection identification unit 200 through the feedback terminals. This one-to-one correspondence design ensures that the connection status of the plug-in module can be accurately monitored.

[0075] When the plug-in module is inserted, each identification terminal A2 in the detection identification unit 200 generates a corresponding insertion signal and transmits it to the main controller through the connected feedback terminal. The main controller receives the insertion signals one by one through the feedback terminals to detect the connection status of each identification terminal A2, thereby determining whether the plug-in module is correctly plugged in. Since each feedback terminal corresponds to only one identification terminal A2, this design avoids signal mixing and ensures the accuracy of system detection.

[0076] For example, if the system contains six identification terminals A2, the main controller will include six feedback terminals, each connected to an identification terminal A2. In the case of correct connection of the plug-in module, the six identification terminals A2 will generate six insertion signals, which are transmitted to the main controller through the corresponding feedback terminals. By comparing these signals with the preset identification information, the main controller determines whether all connections are stable and reliable. If an expected signal is not received by a feedback terminal, the main controller determines that the corresponding identification terminal A2 is abnormal, and takes appropriate error handling measures.

[0077] This design makes the system have high precision and flexibility in detecting the connection state of the plug-in module. Since each feedback end works independently, the main controller can quickly identify and locate any abnormal situation in the connection. In addition, the independent feedback end design simplifies the signal processing logic of the system, making the system more efficient in data acquisition and signal processing, and reducing the possibility of signal interference.

[0078] Through the one-to-one correspondence between multiple feedback ends and multiple identification ends A2, this embodiment not only improves the detection reliability of the system, but also enhances the convenience of maintenance. When a feedback end fails, the main controller can quickly issue an alarm to indicate the fault location, so that maintenance personnel can quickly troubleshoot and repair, ensuring the continuous and stable operation of the system.

[0079] Referring to Figure 3 and Figure 4 In this embodiment, the plug-in module identification circuit further includes a signal stabilizer 400, and each feedback end is electrically connected to the signal stabilizer 400.

[0080] In this embodiment, in addition to the to-be-detected identification unit 100, the detection identification unit 200, the multiple feedback ends, and the main controller, the plug-in module identification circuit further includes a signal stabilizer 400. Each feedback end is electrically connected to the signal stabilizer 400, so as to ensure that when there is no module plugged into the socket, the signal of the feedback end can be clamped at a stable level, thereby avoiding the main controller misjudging the plugging state.

[0081] The main function of the signal stabilizer 400 is to clamp the signal of the feedback end at a high level or a low level in the absence of module plugging, or at a pre-set stable state. In this way, when the plug-in module is not plugged in, the feedback end will not cause the main controller to mistakenly think that the module is connected due to the floating voltage. This clamping mechanism makes the system more reliable in judging the plugging state, greatly reduces the possibility of false positives, and ensures the stability of the entire system.

[0082] The signal stabilizer 400 can be implemented by using a pull-up resistor R1, a pull-down resistor R2, or a dedicated signal processing chip. For example, when there is no plug-in module plugged in, the signal stabilizer 400 can clamp the signal of the feedback end at a low level, ensuring that the signal received by the main controller is a clear low level state, thereby determining that the module is not plugged in. Once the plug-in module is plugged in, the signal state changes, and the feedback end will transmit the actual plugging signal to the main controller through the signal stabilizer 400 for judging the connection state of the module.

[0083] In addition, by adopting the design of the signal stabilizer 400, the entire plug-in module identification circuit has stronger anti-interference capability. In a complex application scenario, electromagnetic interference from the external environment may affect the unconnected feedback end, causing the signal of the feedback end to be unstable. The addition of the signal stabilizer 400 can effectively suppress such interference, ensuring the stability and reliability of the signal of the feedback end, and further improving the accuracy and reliability of the system.

[0084] With reference to the foregoing Figure 4 , the signal stabilizer 400 includes a plurality of pull-up resistors R1, the first ends of the plurality of pull-up resistors R1 are electrically connected to a power supply, the second ends of the plurality of pull-up resistors R1 are respectively electrically connected to a plurality of identification ends A2, and the plurality of connection ends A1 are grounded.

[0085] In this embodiment, the signal stabilizer 400 includes a plurality of pull-up resistors R1 for ensuring the stability of the feedback end signal. Specifically, the first ends of the plurality of pull-up resistors R1 are connected to a power supply (it should be noted that the power supply VCC in this embodiment can be a common 3.3V, of course, in other embodiments, it can also be a voltage higher than 3.3V or less than 3.3V, which is not particularly limited here), and the second ends are respectively connected to a plurality of identification ends A2, and the plurality of connection ends A1 are grounded. In this way, in the absence of a plug-in module, each identification end A2 will be pulled to the power supply level (high level) by the pull-up resistor R1 to provide a stable signal state.

[0086] Specifically, the pull-up resistor R1 is used to connect the identification end A2 to the power supply, so that the identification end A2 is not floating when the plug-in module is not plugged in, thereby avoiding the generation of uncertain floating signals. Each feedback end can maintain a clear high level state, ensuring that the main controller can correctly judge the state of the plug-in module. For example, when the plug-in module is not plugged in, the pull-up resistor R1 pulls the identification end A2 to a high level, and the feedback end also presents a stable high level, so the main controller judges that no module is currently plugged in. When the plug-in module is inserted, the connection end A1 and the identification end A2 establish electrical connection, and the current flows to the ground, pulling the voltage of the identification end A2 to the ground level, so the main controller judges that the connection is correct. If some identification ends A2 are high and some are low, the main controller judges that the connection is incorrect.

[0087] In this embodiment, the pull-up resistor R1 not only realizes stable pull-up of each identification end A2, but also provides stronger anti-interference capability for signal detection of the system. In a complex electromagnetic environment, an unconnected port is easily affected by external noise, causing the signal to be unstable. By using the pull-up resistor R1, such interference can be effectively reduced, ensuring that the identification end A2 and the feedback end remain stable in the state of no module being plugged in.

[0088] The signal stabilizer 400 in the embodiment provides a stable high-level signal for the feedback end by means of the pull-up resistor R1, so that the main controller can correctly determine the connection state of the plug-in module.

[0089] In one embodiment, the signal stabilizer 400 includes a plurality of pull-down resistors R2, the first ends of the plurality of pull-down resistors R2 are grounded, the second ends of the plurality of pull-down resistors R2 are respectively electrically connected to the plurality of identification ends A2, and the plurality of connection ends A1 are electrically connected to the power supply.

[0090] In the embodiment, the signal stabilizer 400 adopts the design of the pull-down resistor R2, which is contrary to the foregoing embodiment of the pull-up resistor R1. Specifically, the signal stabilizer 400 includes a plurality of pull-down resistors R2, the first ends of each pull-down resistor R2 are grounded, the second ends are respectively electrically connected to the plurality of identification ends A2, and the plurality of connection ends A1 are connected to the power supply. This design makes each identification end A2 be pulled to the ground level by the pull-down resistor R2 to provide a stable low-level signal in the absence of the plug-in module.

[0091] The pull-down resistor R2 is used to connect the identification end A2 to the ground, so as to ensure that the identification end A2 is not suspended when the plug-in module is not plugged in, thereby avoiding the generation of an uncertain floating signal. This design makes each feedback end maintain a clear low-level state, ensuring that the main controller can correctly determine the state of the plug-in module. For example, when the plug-in module is not plugged in, the pull-down resistor R2 pulls the identification end A2 to a low level, and the feedback end also presents a stable low level, so that the main controller determines that no module is currently plugged in. When the plug-in module is inserted into the socket, the connection end A1 and the identification end A2 establish electrical connection, and the current flows to the identification end A2 (the connection end A1 can be connected to the power supply, and the current is transmitted after the connection end A1 is connected, thereby generating a voltage), which pulls the voltage of the identification end A2 to the power supply level, so that the main controller determines that the connection is correct. If part of the identification end A2 is at a low level and part is at a high level, the main controller determines that the connection is incorrect.

[0092] The utility model further provides a kind of plug-in device, including the plug-in module identification circuit of preceding description. The specific structure of the module identification circuit refers to the above embodiment, since the plug-in device has all the technical solutions of the above all embodiments, it at least has all the technical effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, plug-in device can be applied to multiple scenarios, for example, used in the expansion module interface of electronic equipment, plug-in module in communication equipment, and modular interface management of industrial equipment.

[0093] For example, in a server system, the plug-in device can be used for interface management of hot-swappable hard drives. When a server hard drive needs to be inserted or removed, the plug-in module recognition circuit can monitor and judge the insertion state of the hard drive module in real time through the design of pull-down resistor R2 or pull-up resistor R1. Through the signal transmission of recognition end A2 and feedback end, the main controller can accurately judge whether the hard drive has been correctly inserted in place, and ensure that there will be no misjudgment due to signal drift or noise interference during the insertion process. This can realize safe and reliable hot-swappable operation, and ensure the normal operation of the server and the safety of the data.

[0094] In another embodiment, the plug-in device can be applied to the modular expansion interface of smart home devices. For example, a smart speaker can expand different functional modules such as microphone arrays, speaker modules or communication modules through the plug-in device. The plug-in module recognition circuit is used to judge whether these functional modules have been correctly connected, so as to prevent device failure caused by incomplete insertion or unstable connection of the modules. Through the recognition circuit, the smart home device can realize self-detection and error prompt, facilitate the user to carry out modular expansion, and enhance the use experience of the device.

[0095] In addition, the plug-in device can also be used for the pluggable sensor interface management in industrial automation equipment. In an industrial production environment, different sensor modules may need to be frequently replaced or maintained. The plug-in module recognition circuit can monitor the insertion state of each sensor module in real time to ensure that the sensor can work stably during the operation of the device. Through the real-time feedback of the recognition signal, the main controller can timely find the insertion failure and issue an alarm so that the operator can quickly handle it, thereby improving the production efficiency and reducing the downtime of the device.

[0096] In summary, the plug-in device in the embodiment can effectively improve the insertion reliability of various types of modular devices by integrating the plug-in module recognition circuit. Whether it is an electronic device, a smart home or an industrial device, the plug-in device can ensure that the modules are correctly inserted, enhance the stability and safety of the system, and reduce the failure and maintenance cost caused by poor insertion.

[0097] The utility model further proposes an electronic device comprising the plug-in device of the foregoing embodiment.

[0098] In the embodiment, the electronic device can be various types of devices, such as computers, servers, smart home devices, industrial control devices, etc.

[0099] For example, a computer can manage the insertion state of its expansion module interface, such as memory sticks, hard drives, graphics cards, etc. by integrating the plug-in device. The plug-in device can monitor the connection of these hardware components in real time to ensure that they can be correctly connected when installed or replaced, avoiding system failure caused by poor insertion.

[0100] The server device can also manage the hot-plug hard disk and other expansion modules through the plug device.

[0101] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation or direct / indirect application in other related technical fields based on the content of the present application specification and drawings under the overall concept of the present application are included in the scope of protection of the present application.

Claims

1. An identification circuit for a plug-in module, characterized in that include: A detection and identification unit, wherein the detection and identification unit includes multiple connection terminals; The detection and identification unit includes multiple identification terminals corresponding to the multiple connection terminals, the multiple identification terminals being used to electrically connect the multiple connection terminals, and the detection and identification unit being used to generate multiple insertion signals; A main controller is electrically connected to the detection and identification unit. The main controller is configured to receive multiple insertion signals generated by the detection and identification unit and compare them with preset identification information to detect whether the multiple connection terminals are correctly electrically connected to the multiple identification terminals.

2. The plug-in module identification circuit of claim 1, wherein, The ratio of the number of connection terminals to the number of identification terminals is 1:

1.

3. The plug-in module identification circuit of claim 1, wherein, The number of connection ends is an even number, and the number of identification ends is an even number; Wherein, the number of connection ends is two, and the number of identification ends is two; or, The number of connection terminals is four, and the number of identification terminals is four; or, The number of connection terminals is six, and the number of identification terminals is six.

4. The plug-in module identification circuit of claim 3, wherein, The number of connection ends is odd, and the number of identification ends is odd. Wherein, the number of connection ends is three, and the number of identification ends is three; or, The number of connection terminals is five, and the number of identification terminals is five; or, The number of connection terminals is seven, and the number of identification terminals is seven.

5. The plug-in module identification circuit according to any one of claims 1 to 4, characterized in that, The main controller includes multiple feedback terminals that correspond one-to-one with the multiple recognition terminals. The multiple feedback terminals are electrically connected to the multiple recognition terminals. The main controller acquires multiple insertion signals generated by the detection and recognition unit through the multiple feedback terminals.

6. The plug-in module identification circuit of claim 5, wherein, The plug-in / plug-out module identification circuit also includes a signal stabilizer, and each of the feedback terminals is electrically connected to the signal stabilizer.

7. The plug-in module identification circuit of claim 6, wherein, The signal stabilizer includes multiple pull-up resistors, the first ends of which are electrically connected to a power supply, the second ends of which are electrically connected to multiple identification terminals, and the multiple connection terminals are grounded.

8. The plug-in module identification circuit of claim 6, wherein, The signal stabilizer includes multiple pull-down resistors, with the first end of each pull-down resistor grounded, the second end of each pull-down resistor electrically connected to multiple identification terminals, and the multiple connection terminals electrically connected to a power supply.

9. An insertion device, characterized in that Includes the plug-in / plug-out module identification circuit as described in any one of claims 1 to 8.

10. An electronic device, comprising: Includes the plug-in / plug-out device as described in claim 9.

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