Communication detection device, intelligent lock detection device and intelligent lock

Abstract

The utility model discloses a communication detection device, an intelligent lock detection device and an intelligent lock, and the communication detection device is arranged on a communication link between a control module and an application module. According to the communication detection device, the comparison module is used for comparing the communication instructions of the control module and the application module, and the detection feedback signal is output to the communication feedback end of the control module through the switch module, so that whether the communication between the control module and the application module is abnormal or not is automatically detected. And the communication detection efficiency and the communication detection accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the field of equipment detection, in particular to a communication detection device, an intelligent lock detection device and an intelligent lock. Background Art

[0002] Each module of household electrical appliances usually undertakes different functions, such as a main control module, a wireless communication module, a power management module, a motor drive module, etc. Effective communication is carried out between each module to ensure the normal operation of household electrical appliances and realize various functions.

[0003] In the prior art, after assembling each module of household electrical appliances, it is usually the tester who tests the communication between the assembled modules. The test efficiency is low, and it is easy to make mistakes, and the detection accuracy is low. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects and deficiencies of the prior art, and provide a communication detection device, an intelligent lock detection device and an intelligent lock, which can improve the communication detection efficiency and detection accuracy of the intelligent lock.

[0005] In a first aspect, the utility model provides a communication detection device. The communication detection device is arranged on the communication link between the control module and the application module. The communication detection device includes a comparison module and a switch module;

[0006] The comparison module includes a first input end, a second input end, a first output end and a second output end;

[0007] The first input end is connected to the communication instruction output end of the control module, the first output end is connected to the communication input end of the application module, the second input end is connected to the communication output end of the application module, and the second output end is connected to the communication feedback end of the control module through the switch module.

[0008] Optionally, it further includes a wake-up signal receiving module connected to the control module. The wake-up signal receiving module is used to receive a wake-up signal and output it to the control module, so that the control module outputs a communication detection instruction to the communication detection device in response to the wake-up signal; the communication detection instruction is used to start the communication detection device.

[0009] In this application, the wake-up signal receiving module is used to receive the wake-up signal and output it to the control module. After receiving the wake-up signal, the control module controls the communication detection device to perform communication detection on the communication link between the control module and the application module according to the wake-up signal, so as to avoid the frequent detection of the communication detection device from affecting the normal operation of the device and save electric energy.

[0010] Optionally, the switch module includes a switching element, which includes a control terminal, a first terminal and a second terminal that are turned on by the control terminal;

[0011] The control terminal of the switching element is connected to the output terminal of the control module, the first terminal of the switching element is connected to the second output terminal of the comparison module, and the second terminal of the switching element is connected to the communication feedback terminal of the control module; in the embodiment of the present application, the signal output by the output terminal of the control module is used to control the conduction or cut-off of the first terminal and the second terminal of the switching element. When performing communication detection, the output terminal of the control module outputs a conduction signal to control the conduction of the first terminal and the second terminal of the switching element. The electrical signal output by the second output terminal of the comparison module is output to the communication feedback terminal of the control module through a triode. Thus, the control module can determine whether the communication is abnormal based on the magnitude of the current received by the communication feedback terminal. At the same time, the base of the triode in the present application is connected to the control module, and the control module can control the conduction or cut-off of the triode according to the communication detection requirements. When communication detection is not required, the output terminal of the control module outputs a signal to control the cut-off of the first terminal and the second terminal of the switching element, saving circuit power consumption and improving the power utilization efficiency.

[0012] Alternatively, the control terminal of the switching element is connected to the second output terminal of the comparison module, the first terminal of the switching element is connected to a power supply, and the second terminal of the switching element is connected to the communication feedback terminal of the control module.

[0013] In the embodiment of the present application, the control terminal of the switching element controls the conduction or disconnection of the first terminal and the second terminal according to the signal output by the second output terminal of the comparison module. When the first terminal and the second terminal of the switching element are conducting, the communication feedback terminal can collect a current signal to determine that the communication between the control module and the application module is normal; when the first terminal and the second terminal of the switching element are disconnected, the communication feedback terminal cannot collect a current signal to determine that the communication between the control module and the application module is abnormal. The control module can determine whether the communication between the control module and the application module is abnormal based on whether the communication feedback terminal collects a current signal, realizing the detection of the communication situation between the control module and the application module.

[0014] Optionally, the switching element is a triode;

[0015] The base of the triode is connected to the output terminal of the control module, the collector of the triode is connected to the second output terminal of the comparison module, and the emitter of the triode is connected to the communication feedback terminal of the control module;

[0016] Alternatively, the base of the triode is connected to the second output terminal of the comparison module, the collector of the triode is connected to a power supply, and the emitter of the triode is connected to the communication feedback terminal of the control module.

[0017] In this application, when the base of the triode is connected to the communication feedback terminal of the control module, the signal output from the second output terminal of the comparison module is output to the communication feedback terminal of the control module through the triode. Thus, the control module can determine whether the communication is abnormal by the magnitude of the received current. The base of the triode in this application is connected to the control module. When communication detection is not required, the control module can control the triode to turn off, saving circuit power loss and improving the power usage efficiency. When the base of the triode is connected to the second output terminal, the triode conducts and turns off according to the output signal of the comparison module. Thus, the communication feedback terminal of the control module can determine whether the communication between the control module and the application module is abnormal by detecting whether a current signal is collected. This application can automatically detect and feedback the communication status between the control module and the application module, with a simple structure and low production cost, and can effectively improve the communication detection efficiency between the control module and the application module.

[0018] Optionally, the comparison module includes a comparator, a first resistor, and a filter circuit; the first input terminal of the comparator is connected to the communication instruction output terminal of the control module through the first resistor, the second input terminal of the comparator is connected to the communication output terminal of the application module, the first output terminal of the comparator is connected to the input terminal of the filter circuit, the second output terminal of the comparator is connected to the communication feedback terminal of the control module through a switch module, and the output terminal of the filter circuit is connected to the communication input terminal of the application module.

[0019] By using the comparator to compare the input first communication instruction and second communication instruction, it is determined whether the first communication instruction and the second communication instruction are normal instructions. The communication request signal output by the comparator is filtered by the filter circuit to improve the quality of the signal output to the application module, avoiding misjudgment of communication abnormality caused by the application module being unable to respond to the communication request signal due to abnormal communication request signals, and improving the communication detection accuracy.

[0020] Optionally, the filter circuit includes a second resistor, a third resistor, and a capacitor; the first end of the second resistor is connected to the first output terminal of the comparator, the second end of the second resistor is respectively connected to the communication input terminal of the application module, the first end of the third resistor, and the first end of the capacitor, and the second ends of the third resistor and the capacitor are grounded.

[0021] In the embodiment of this application, the communication request signal output by the comparator is filtered by using the filter circuit composed of the second resistor, the third resistor, and the capacitor. The filter circuit has a simple structure and can reduce the production cost.

[0022] Optionally, it further includes a display module connected to the control module;

[0023] The display module is configured to display the communication detection result according to the display signal of the control module.

[0024] In the embodiment of the present application, the control module controls the display module to display the communication detection result by outputting a display signal to the display module, which facilitates the user to know the communication detection result in a timely manner and enables the user to repair the abnormal module in a timely manner when the communication detection is abnormal, thereby improving the repair efficiency.

[0025] Optionally, it further includes a networking module connected to the control module, and the networking module is configured to upload the communication detection result to a server.

[0026] In the embodiment of the present application, the control module can upload the communication detection result to the server through the networking module, thereby facilitating the server to analyze and statistically process the communication detection result.

[0027] In a second aspect, the present utility model provides an intelligent lock detection device applied to an intelligent lock body, where the intelligent lock body includes a control module and an application module, and the device includes the communication detection device as described in any one of the above.

[0028] In a third aspect, the present utility model provides an intelligent lock, including an intelligent lock body and the intelligent lock detection device as described above.

[0029] In the present application, a communication detection device is provided on the communication link between the control module and the application module. The communication detection device uses a comparison module to compare the communication instructions of the control module and the application module and outputs a detection feedback signal to the communication feedback end of the control module through a switch module, thereby automatically detecting whether the communication between the control module and the application module is abnormal. The present application reduces the time and cost of manual detection and improves the communication detection efficiency and communication detection accuracy.

[0030] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a communication detection device in an embodiment of the present utility model;

[0032] Figure 2 is a schematic structural diagram of a comparison module in an embodiment of the present utility model;

[0033] Figure 3 is a circuit diagram of a communication detection device in an embodiment of the present utility model;

[0034] Figure 4 is a circuit diagram of a communication detection device in another embodiment of the present utility model;

[0035] Figure 5It is a schematic structural diagram of an intelligent lock detection device in an embodiment of the present utility model;

[0036] Figure 6 It is a schematic structural diagram of an intelligent lock in an embodiment of the present utility model. Specific embodiments

[0037] To make the objectives, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0038] It should be clear that the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0039] The terms used in the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The singular forms of "a", "the" and "said" used in the present utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0040] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] In addition, in the description of the present application, unless otherwise specified, "a number of" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0042] The communication detection device of the present application is used to implement communication detection of the communication link between the control module and the application module. The control module and the application module can be modules of a household appliance device. The control module can be the control core of the household appliance device, and it uses various interfaces and circuits to connect each component of the entire household appliance device, and realizes various functions of the household appliance device by running or executing pre-stored programs or modules.

[0043] The household appliance device of the present application can be an intelligent lock. An intelligent lock usually includes modules such as a main control module, a wireless communication module, a power management module, and a motor drive module. After assembling each module of the intelligent lock, effective communication is required between the modules to ensure the normal operation of the intelligent lock. The present application can realize automatic detection of the communication status between the control module of the intelligent lock and each application module, and automatically verify whether the assembly of the intelligent lock is correct, thereby improving the assembly quality of the intelligent lock.

[0044] The control module can be a central processing unit, a microprocessor, and various control chips. In the embodiments of the present application, the control module can be a single-chip microcomputer.

[0045] The application module is the module corresponding to the function to be realized by the household appliance device. The application module can include modules such as a wireless communication module, a power management module, and a motor drive module.

[0046] The control module and the application module can communicate using serial communication or other common communication methods.

[0047] In the prior art, it is usually the tester who manually detects whether the communication between each module is normal. The test efficiency is low, and it is easy to make mistakes, and the detection accuracy is low.

[0048] Therefore, in view of the above problems, as Figure 1 shown, the present utility model provides a communication detection device. The communication detection device is arranged on the communication link between the control module and the application module. The communication detection device includes a comparison module 110 and a switch module 120;

[0049] The comparison module 110 includes a first input terminal 111, a second input terminal 112, a first output terminal 113, and a second output terminal 114;

[0050] The first input terminal 111 is connected to the communication instruction output terminal of the control module. The first output terminal 113 is connected to the communication input terminal of the application module. The second input terminal 112 is connected to the communication output terminal of the application module. The second output terminal 114 is connected to the communication feedback terminal of the control module through the switch module 120.

[0051] The comparison module 110 is used to compare the received first communication instruction with a preset first communication instruction and the received second communication instruction with a preset second communication instruction, so as to determine whether the first communication instruction or the second communication instruction is a normal instruction. For different comparison results, the comparison module 110 outputs different signals. The signals output by the comparison module 110 are transmitted to the communication feedback end of the control module through the switch module, so that the communication feedback end of the control module can determine whether the communication between the control module and the application module is normal according to the received signals.

[0052] The comparison module 110 can be an integrated circuit module composed of two or more comparators. Different comparators are used to detect different communication instructions. For example Figure 2 as shown, in one embodiment, the comparison module 110 includes a comparator U1 and a comparator U2;

[0053] The first input terminal of the comparator U1 is connected to the communication instruction output terminal of the control module. The second input terminal of the comparator U1 inputs a first reference signal corresponding to the preset first communication instruction. The output terminal of the comparator U1 is connected to the communication input terminal of the application module. The comparator U1 determines whether the input first communication instruction is a normal instruction or an abnormal instruction by comparing the voltage magnitudes of the two input signals.

[0054] The first input terminal of the comparator U2 is connected to the communication output terminal of the application module. The second input terminal of the comparator U2 inputs a second reference signal corresponding to the preset second communication instruction. The output terminal of the comparator U2 is connected to the communication feedback end of the control module through the switch module 120. The comparator U2 determines whether the input second communication instruction is a normal instruction or an abnormal instruction by comparing the voltage magnitudes of the two input signals.

[0055] When the first communication instruction is the same as the second communication instruction, the first reference signal and the second reference signal can be the same signal; when the first communication instruction is different from the second communication instruction, the first reference signal and the second reference signal can be different signals.

[0056] In this embodiment, the comparator U1 compares the first communication instruction. After determining that the first communication instruction is a normal instruction, it outputs a communication request signal to the communication input terminal of the application module. The first input terminal of the comparator U2 receives the second communication instruction returned by the application module in response to the communication request signal and compares the second communication instruction. After determining that the second communication instruction is a normal instruction, it outputs a communication feedback signal to the switch module 120, and then feeds back to the control module.

[0057] When the comparator U1 compares the first communication instruction and determines that the first communication instruction is an abnormal instruction, it outputs a first abnormal feedback signal. The first abnormal feedback signal is output to the switch module 120 via the application module and the comparator U2, and then fed back to the control module.

[0058] When the comparator U2 compares the second communication instruction and determines that the second communication instruction is an abnormal instruction, it outputs a second abnormal feedback signal to the switch module 120, and then it is fed back to the control module.

[0059] Optionally, the first abnormal feedback signal and the second abnormal feedback signal can be the same signal, or the first abnormal feedback signal and the second abnormal feedback signal can also be different signals.

[0060] When the first abnormal feedback signal and the second abnormal feedback signal can also be different signals, the control module can determine the module with a communication fault according to the first abnormal feedback signal or the second abnormal feedback signal, so as to facilitate the maintenance and replacement of the module with a communication fault and improve the maintenance efficiency.

[0061] In the embodiment of the present application, by using the comparator U1 and the comparator U2 to compare the received first communication instruction and the second communication instruction, it is determined whether the first communication instruction or the second communication instruction is a normal instruction, and then it is determined whether there is an abnormality in the communication between the control module and the application module and the module with the abnormality, which helps the user quickly identify the module with a communication fault, facilitates the maintenance and replacement of the module with a communication fault, and improves the maintenance efficiency.

[0062] Or, in another embodiment, the comparison module 110 can also be other chips with the above communication instruction detection function.

[0063] In this embodiment, the comparison module 110 receives the first communication instruction of the control module through the first input terminal 111, compares the first communication instruction, and after determining that the first communication instruction is a normal instruction, outputs a communication request signal to the communication input terminal of the application module through the first output terminal 113, receives the second communication instruction returned by the application module in response to the communication request signal through the second input terminal 112, compares the second communication instruction, and after determining that the second communication instruction is a normal instruction, outputs a communication feedback signal to the switch module 120 through the second output terminal 114, and then it is fed back to the control module.

[0064] When the comparison module 110 compares the first communication instruction and determines that the first communication instruction is an abnormal instruction, it outputs a first abnormal feedback signal to the switch module 120 through the second output terminal 114, and then it is fed back to the control module.

[0065] When the comparison module 110 compares the second communication instruction and determines that the second communication instruction is an abnormal instruction, it outputs a second abnormal feedback signal to the switch module 120 through the second output terminal 114, and then feeds back to the control module.

[0066] Optionally, the first abnormal feedback signal and the second abnormal feedback signal can be the same signal, or the first abnormal feedback signal and the second abnormal feedback signal can also be different signals. The control module can determine the module with a communication failure based on the first abnormal feedback signal or the second abnormal feedback signal, thereby facilitating the repair and replacement of the module with a communication failure and improving the repair efficiency.

[0067] In the embodiment of the present application, the first abnormal feedback signal and the second abnormal feedback signal can be the same signal; specifically, the communication feedback signal can be a high-level signal of 3.3V, and the first abnormal feedback signal and the second abnormal feedback signal can be low-level signals of 0V.

[0068] The comparison module 110 is configured to compare the received first communication instruction and second communication instruction with a preset communication instruction, so as to determine whether the first communication instruction or the second communication instruction is a normal instruction. For different comparison results, the comparison module 110 outputs different signals. Specifically, when the communication instruction is different from the preset communication instruction, the comparison module 110 outputs a low-level signal; when the communication instruction is the same as the preset communication instruction, the comparison module 110 outputs a high-level signal.

[0069] The switch module 120 can adopt switching elements with conduction and cutoff functions such as triodes and relays.

[0070] In the present application, a communication detection device is provided on the communication link between the control module and the application module. The communication detection device uses the comparison module to compare the communication instructions of the control module and the application module and outputs a detection feedback signal to the communication feedback terminal of the control module through the switch module, so as to automatically detect whether the communication between the control module and the application module is abnormal. The present application reduces the time and cost of manual detection and improves the communication detection efficiency and communication detection accuracy.

[0071] As Figure 3 shown, in one embodiment, the comparison module 110 includes a comparator U1A, a first resistor R1, and a filtering circuit;

[0072] The first input terminal of the comparator U1A is connected to the communication instruction output terminal of the control module through the first resistor. The second input terminal of the comparator U1A is connected to the communication output terminal of the application module. The first output terminal of the comparator U1A is connected to the input terminal of the filtering circuit. The second output terminal of the comparator U1A is connected to the communication feedback terminal of the control module through the switching module. The output terminal of the filtering circuit is connected to the communication input terminal of the application module.

[0073] In this application, the comparator U1A can respectively input the electrical signal corresponding to the preset communication instruction and the electrical signal corresponding to the communication instruction into the comparator. The comparator determines whether the input communication instruction is a normal instruction or an abnormal instruction by comparing the voltage magnitudes of the two input electrical signals. After determining that the first communication instruction is a normal instruction, the comparator U1A outputs a communication request signal to the communication input terminal of the application module through the first output terminal 113, receives the second communication instruction returned by the application module in response to the communication request signal, and performs instruction comparison on the second communication instruction. After determining that the second communication instruction is a normal instruction, a communication feedback signal is output through the second output terminal 114; otherwise, after determining that the first communication instruction is an abnormal instruction, a first abnormal feedback signal is output through the second output terminal 114; or, after determining that the second communication instruction is an abnormal instruction, a second abnormal feedback signal is output through the second output terminal 114.

[0074] The filtering circuit is used to filter the communication request signal output by the comparator U1A, thereby improving the quality of the signal output to the application module, avoiding misjudgment of communication anomalies caused by the inability of the application module to respond to the communication request signal due to abnormal communication request signals, and improving the accuracy of communication detection.

[0075] The filtering circuit can use existing filtering circuits such as RC circuits to filter the communication request signal output by the comparator U1A.

[0076] In the embodiment of this application, by using a comparator to compare the input first communication instruction and second communication instruction, it is determined whether the first communication instruction and the second communication instruction are normal instructions. The filtering circuit filters the communication request signal output by the comparator to improve the quality of the signal output to the application module, avoid misjudgment of communication anomalies caused by the inability of the application module to respond to the communication request signal due to abnormal communication request signals, and improve the accuracy of communication detection.

[0077] Such as Figure 3As shown, in one embodiment, the filtering circuit includes a second resistor R3, a third resistor R4, and a capacitor C1. The first end of the second resistor R3 is connected to the first output end of the comparator U1A. The second end of the second resistor R3 is respectively connected to the communication input end of the application module, the first end of the third resistor R4, and the first end of the capacitor C1. The second end of the third resistor R4 and the second end of the capacitor C1 are grounded.

[0078] In the embodiment of the present application, by using a filtering circuit composed of a second resistor, a third resistor, and a capacitor to filter the communication request signal output by the comparator, the filtering circuit has a simple structure and can reduce the production cost.

[0079] The communication detection device of the present application can be used to detect whether the communication link between the control module and the application module is operating normally. This detection can be a regular detection or can be initiated according to the user's instruction. When there is no need to detect whether the communication link between the control module and the application module is operating normally, the communication detection device can be turned off to save electrical energy.

[0080] Specifically, the communication detection device further includes a wake-up signal receiving module connected to the control module. The wake-up signal receiving module is used to receive the wake-up signal and output it to the control module, so that the control module outputs a communication detection instruction to the communication detection device in response to the wake-up signal.

[0081] The communication detection instruction is used to start the communication detection device, so as to detect whether the communication link between the control module and the application module is operating normally.

[0082] The wake-up signal can be an external input signal, which can be input by the user through an external input device communicatively connected to the control device. The external input device can be a mobile terminal, a computer, or other devices.

[0083] The communication detection device can be pre-in a low-power state such as sleep. After the control module receives the wake-up signal, it outputs a communication detection instruction to the communication detection device. The communication detection device switches from the low-power state to the working state in response to the communication detection instruction, so as to detect whether the communication link between the control module and the application module is operating normally. After the control module receives the communication detection result, it can output a stop detection instruction to the communication detection device, so as to control the communication detection device to stop the communication detection and switch back to the low-power state such as sleep.

[0084] In this application, a wake-up signal receiving module is used to receive a wake-up signal and output it to a control module. After receiving the wake-up signal, the control module controls a communication detection device to perform communication detection on the communication link between the control module and an application module according to the wake-up signal, thereby avoiding the frequent detection of the communication detection device from affecting the normal operation of the device and saving electric energy.

[0085] Optionally, the switch module 120 further includes a switching element, and the switching element includes a control end and a first end and a second end that are controlled to conduct by the control end; the control end of the switching element is connected to the output end of the control module, the first end of the switching element is connected to the second output end of the comparison module, and the second end of the switching element is connected to the communication feedback end of the control module.

[0086] The signal output from the output end of the control module is used to control the conduction or cut-off of the first end and the second end of the switching element. When performing communication detection, the output end of the control module outputs a conduction signal to control the conduction of the first end and the second end of the switching element, and the communication feedback end of the control module determines whether the communication between the control module and the application module is abnormal according to the magnitude of the input current or input voltage; when communication detection is not required, the output end of the control module controls the cut-off of the first end and the second end of the switching element by outputting a cut-off signal to the control end of the switching element, thereby reducing the circuit power consumption and saving electric energy.

[0087] In one embodiment, the switch module 120 can use a triode to reduce the current output to the communication feedback end of the control module.

[0088] The switching element can be a triode. If the triode is an NPN transistor, at this time, the control end of the switching element is the base of the triode, the first end of the switching element is the collector, and the second end of the switching element is the emitter; the base of the triode is connected to the output end of the control module, the collector of the triode is connected to the second output end of the comparison module, and the emitter of the triode is connected to the communication feedback end of the control module. In other embodiments, the switching element can also be a PNP transistor or other field effect transistors, etc.

[0089] As Figure 3 shown, the switch module 120 includes a triode Q1 and resistors R2, R5, and R6; the base of the triode Q1 is connected to the output end of the control module through the resistor R2, the emitter of the triode Q1 is connected to the communication feedback end of the control module through the resistor R5, and the collector of the triode Q1 is connected to the second output end of the comparison module through the resistor R6.

[0090] In the embodiment of the present application, when detecting whether the communication between the control module and the application module is abnormal, the control module outputs a high-level signal to control the triode Q1 to conduct. The emitter current value of the triode Q1 is the sum of the collector current value and the base current value. According to the different signals output from the second output terminal of the comparison module, the collector current value of the triode Q1 is different. The control module can determine whether the communication is abnormal by reading the current value at the communication feedback terminal. Specifically, when the current value is within the target current value range, it is determined that the communication is normal; when the current value is outside the target current value range, it is determined that the communication is abnormal. Among them, the target current value range can be set according to the current values at the communication feedback terminal when the first communication instruction and the second communication instruction are normal instructions.

[0091] In the embodiment of the present application, the signal output from the output terminal of the control module is used to control the first end and the second end of the switching element to conduct or turn off. When performing communication detection, the output terminal of the control module outputs a conduction signal to control the first end and the second end of the switching element to conduct. The electrical signal output from the second output terminal of the comparison module is output to the communication feedback terminal of the control module through the triode. Thus, the control module can determine whether the communication is abnormal based on the magnitude of the current received at the communication feedback terminal. At the same time, the base of the triode in the present application is connected to the control module, and the control module can control the triode to conduct or turn off according to the communication detection requirements. When communication detection is not required, the output terminal of the control module outputs a signal to control the first end and the second end of the switching element to turn off, saving circuit losses and improving the power usage efficiency.

[0092] Alternatively, in another embodiment, the control terminal of the switching element is connected to the second output terminal of the comparison module, the first end of the switching element is connected to the power supply, and the second end of the switching element is connected to the communication feedback terminal of the control module.

[0093] In this embodiment, the control terminal of the switching element controls the first end and the second end to conduct or disconnect according to the signal output from the second output terminal of the comparison module 110. When the first end and the second end of the switching element conduct, the communication feedback terminal can collect a current signal, and it is determined that the communication between the control module and the application module is normal; when the first end and the second end of the switching element disconnect, the communication feedback terminal cannot collect a current signal, and it is determined that the communication between the control module and the application module is abnormal. The control module can determine whether the communication between the control module and the application module is abnormal based on whether a current signal is collected at the communication feedback terminal, realizing the detection of the communication situation between the control module and the application module.

[0094] Specifically, the switching element can be a triode. If the triode is an NPN transistor, the control end of the switching element is the base of the triode, the first end of the switching element is the collector, and the second end of the switching element is the emitter; the base of the triode is connected to the second output end, the collector of the triode is connected to the power supply, and the emitter of the triode is connected to the control module. In other embodiments, the switching element can also be a PNP transistor or other field effect transistors, etc.

[0095] As Figure 4 shown, in one embodiment, the switching module 120 includes a triode Q2 and resistors R11 - R13.

[0096] The base of the triode Q2 is connected to the second output end through the resistor R12, the collector of the triode Q2 is connected to the power supply through the resistor R13, and the emitter of the triode Q2 is connected to the communication feedback end of the control module through the resistor R11.

[0097] In the embodiment of the present application, when the comparison module outputs a high - level signal, the triode Q2 conducts, and the communication feedback end can collect a current signal to determine that the communication between the control module and the application module is normal; when the comparison module outputs a low - level signal, the triode Q2 turns off, and the communication feedback end cannot collect a current signal to determine that the communication between the control module and the application module is abnormal. The present application can automatically detect and feedback the communication status between the control module and the application module, with a simple structure and low production cost, and can effectively improve the communication detection efficiency between the control module and the application module.

[0098] In one embodiment, the communication detection device further includes a display module connected to the control module;

[0099] The display module is used to display the communication detection result according to the display signal of the control module.

[0100] The display module can be a device with a display function such as a display screen.

[0101] The communication detection result is used to determine whether the communication between the control module and the application module is normal.

[0102] In the embodiment of the present application, the control module controls the display module to display the communication detection result by outputting a display signal to the display module, which is convenient for the user to know the communication detection result in a timely manner and can repair the abnormal module in a timely manner when the communication detection is abnormal, improving the repair efficiency.

[0103] In one embodiment, the communication detection device further includes a networking module connected to the control module, and the networking module is used to upload the communication detection result to the server.

[0104] The networking module can be a WIFI module or other modules that can be used for communication connection with the server.

[0105] In the embodiments of the present application, the control module can upload the communication detection result to the server through the networking module, so as to facilitate the server to analyze and count the communication detection result.

[0106] As Figure 5 shown, the embodiments of the present application further provide an intelligent lock detection device 200, which is applied to the intelligent lock body. The intelligent lock body includes a control module and an application module. The device includes the communication detection device 210 as described in any one of the above.

[0107] As Figure 6 shown, the embodiments of the present application further provide an intelligent lock 300, which includes an intelligent lock body 310 and the above-mentioned intelligent lock detection device 200. The intelligent lock detection device 200 is connected to the intelligent lock body 310.

[0108] The present utility model is not limited to the above embodiments. If various changes or deformations to the present utility model do not depart from the spirit and scope of the present utility model, and provided that these changes and deformations fall within the scope of the claims of the present utility model and equivalent technical scope, then the present utility model also intends to include these changes and deformations.

Claims

1. A communication detection device, characterized in that: The communication detection device is arranged on the communication link between the control module and the application module, and the communication detection device comprises a comparison module and a switch module; The comparison module comprises a first input terminal, a second input terminal, a first output terminal and a second output terminal; The first input terminal is connected to the communication instruction output terminal of the control module, the first output terminal is connected to the communication input terminal of the application module, the second input terminal is connected to the communication output terminal of the application module, and the second output terminal is connected to the communication feedback terminal of the control module through the switch module.

2. The communication detection device according to claim 1, characterized in that: It also includes a wake-up signal receiving module connected to the control module, the wake-up signal receiving module is used to receive a wake-up signal and output it to the control module, so that the control module outputs a communication detection instruction to the communication detection device in response to the wake-up signal; the communication detection instruction is used to start the communication detection device.

3. The communication detection device according to claim 1, characterized in that: The switch module comprises a switch element, and the switch element comprises a control end and a first end and a second end which are controlled to be turned on by the control end; The control end of the switch element is connected to the output end of the control module, the first end of the switch element is connected to the second output end of the comparison module, and the second end of the switch element is connected to the communication feedback end of the control module; Alternatively, the control end of the switch element is connected to the second output end of the comparison module, the first end of the switch element is connected to the power supply, and the second end of the switch element is connected to the communication feedback end of the control module.

4. The communication detection device according to claim 3, characterized in that: The switch element is a triode; The base of the transistor is connected to the output end of the control module, the collector of the transistor is connected to the second output end of the comparison module, and the emitter of the transistor is connected to the communication feedback end of the control module; Alternatively, the base of the transistor is connected to the second output terminal of the comparison module, the collector of the transistor is connected to the power supply, and the emitter of the transistor is connected to the communication feedback terminal of the control module.

5. The communication detection device according to claim 1, characterized in that: The comparison module includes a comparator, a first resistor and a filter circuit; the first input end of the comparator is connected to the communication instruction output end of the control module through the first resistor, the second input end of the comparator is connected to the communication output end of the application module, the first output end of the comparator is connected to the input end of the filter circuit, the second output end of the comparator is connected to the communication feedback end of the control module through the switch module, and the output end of the filter circuit is connected to the communication input end of the application module.

6. The communication detection device according to claim 5, characterized in that: The filtering circuit includes a second resistor, a third resistor and a capacitor; the first end of the second resistor is connected to the first output end of the comparator, the second end of the second resistor is respectively connected to the communication input end of the application module, the first end of the third resistor and the first end of the capacitor, and the second end of the third resistor and the second end of the capacitor are grounded.

7. The communication detection device according to claim 1, characterized in that: Also includes a display module connected to the control module; The display module is used to display the communication detection result according to the display signal of the control module.

8. The communication detection device according to claim 1, characterized in that: It also includes a networking module connected to the control module, and the networking module is used to upload the communication detection result to the server.

9. A smart lock detection device, characterized in that: Applied to a smart lock body, the smart lock body includes a control module and an application module, and the device includes a communication detection device as described in any one of claims 1-8.

10. A smart lock, characterized in that: It comprises a smart lock body and the smart lock detection device as described in claim 9.

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