Detection circuit and detection device

Abstract

The embodiments of the present invention relate to the field of circuit detection applications, and disclose a detection circuit and a detection device. The present invention comprises: a processing module, having a power supply terminal, a ground terminal, an enable terminal, an input terminal and an output terminal, wherein the power supply terminal is used to receive a power supply signal; a control module, connected to the enable terminal, and used to provide a first control signal to the processing module; the processing module is configured to, based on the first control signal, pre-process the test data input from the input terminal and output it through the output terminal; a transmission module, one end of which is connected to the circuit to be tested and the other end is connected to the input terminal, and is used to transmit the test data of the circuit to be tested to the input terminal; a display module, which is configured to present a first state or a second state based on the output data of the output terminal, so as to provide a convenient initial inspection method for the device to be tested, so as to avoid the staff from being unable to preliminarily judge the problem of the device to be tested, thereby saving maintenance costs.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of circuit detection applications, and in particular to a detection circuit and a detection device. Background Art

[0002] The server provides computing or application services for other clients (such as PCs, smart phones, ATMs and other terminals, and even large equipment such as train systems) in the network. The server has high-speed CPU computing power, long-term reliable operation, strong I / O external data throughput and better scalability. According to the services provided by the server, generally speaking, the server has the ability to respond to service requests, provide services, and guarantee services.

[0003] As an electronic device, the internal structure of the server is very complex. Once a server fails, front-line staff are often unable to make a preliminary judgment on the problem point and need to disassemble the chassis and return it to the factory to locate the problem, which causes economic losses in time. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a detection circuit and a detection device to provide a convenient initial inspection method for the device to be tested, so as to avoid the staff being unable to preliminarily determine the problem of the device to be tested, thereby saving maintenance costs.

[0005] To solve the above technical problems, an embodiment of the present invention provides a detection circuit, including: a processing module, having a power supply terminal, a ground terminal, an enable terminal, an input terminal and an output terminal, the power supply terminal being used to receive a power supply signal; a control module, connected to the enable terminal, and used to provide a first control signal to the processing module; the processing module is configured to, based on the first control signal, pre-process the data to be tested input from the input terminal and then output it through the output terminal; a transmission module, one end of which is connected to the circuit to be tested and the other end is connected to the input terminal, and is used to transmit the data to be tested of the circuit to be tested to the input terminal; a display module, which is configured to present a first state or a second state based on the output data of the output terminal.

[0006] An embodiment of the present invention further provides a detection device, comprising the above detection circuit.

[0007] Compared with the related art, in the embodiment of the present invention, the transmission module is connected to the circuit to be tested, and is used to transmit the test data of the circuit to be tested to the input end of the processing module; the control module controls the processing module through a first control signal to pre-process the test data input by the input end and output it through the output end; the output data of the output end is output to the display module, so that the display module presents a first state or a second state, and the relevant staff determines whether the circuit to be tested is abnormal according to the state presented by the display module; that is, by providing a convenient initial inspection method for the equipment to be tested, it is avoided that the front-line staff cannot preliminarily determine the problem of the equipment to be tested, and need to return the equipment to the factory for positioning, resulting in economic losses in time.

[0008] In addition, the detection circuit also includes: an internal power supply connected to the power supply end for providing a power signal to the processing module; a latch unit, the output end is connected to the display module through the latch unit, and is used to maintain the output data of the output end. In this embodiment, the internal power supply is used to ensure that the detection circuit can work without the external power supply and will not be affected by the external power supply; the latch and the internal power supply are used to ensure that the data of the display module is still saved after it is disconnected from the host.

[0009] In addition, the control module is further used to provide a second control signal to the processing module, and the processing module is configured to reset the output terminal based on the second control signal.

[0010] In addition, the control module includes: a single-pole double-throw switch, including a selection end, a first end and a second end, the selection end is connected to the enable end, one of the first end and the second end is grounded, and the other end is used to receive a power signal; when the selection end is placed at the first end, it is used to provide a first control signal to the enable end; when the selection end is placed at the second end, it is used to provide a second control signal to the enable end.

[0011] In addition, the output end includes a first type of output end and multiple second type of output ends, the first type of output end corresponds to the enable end, and the second type of output ends correspond to the input ends respectively; the processing module is configured to be placed in a first output state based on a first control signal, and to be placed in a second output state based on a second control signal; if the processing module is placed in the first output state, the first type of output end outputs data corresponding to the first control signal, and the second type of output end corresponds to the connected input end; if the processing module is placed in the second output state, the first type of output end outputs data corresponding to the second control signal, and the second type of output end is reset.

[0012] In addition, the processing module also includes: an encoding unit configured to encode the data to be tested received by the input end; the second type of output end is connected to the input end through the encoding unit connected to the input end. In this embodiment, the encoding unit encodes the level received by the input end according to a preset method and then outputs it to realize the analysis function of the detection circuit.

[0013] In addition, the transmission module includes: a connection unit configured to connect the circuit to be tested, wherein the connection unit is also connected to the ground terminal; a transmission unit connected to the connection unit and the input terminal, and used to transmit the test data of the circuit to be tested to the input terminal.

[0014] In addition, the connection unit includes: any one of a threaded connection connector, a bayonet connection connector, a latch connection connector, a push-pull connection connector, or a plug-in connection connector. In this embodiment, by setting a connector corresponding to the circuit to be tested, that is, the detection circuit is adapted to the setting of the device to be tested, there will be no additional cost increase for the device manufacturer, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0016] Figure 1 A virtual structural diagram of a detection circuit provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the specific structure of a detection circuit provided in one embodiment of the present application. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in the embodiments of the present invention, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented. The division of the following embodiments is for the convenience of description, and should not constitute any limitation on the specific implementation of the present invention. The various embodiments can be combined and referenced with each other without contradiction.

[0019] An embodiment of the present invention relates to a detection circuit to provide a convenient initial inspection method for a device under test, thereby preventing a worker from being unable to initially determine where a problem of the device under test is, thereby saving maintenance costs.

[0020] refer to Figure 1 , the processing module 101 has a power supply terminal C, a ground terminal D, an enable terminal E, an input terminal A and an output terminal B, the power supply terminal C is used to receive a power supply signal V DD; A control module 102 is connected to the enable terminal E and is used to provide a first control signal to the processing module 101; the processing module 101 is configured to, based on the first control signal, pre-process the test data input from the input terminal A and output it through the output terminal B; a transmission module 103 has one end connected to the circuit to be tested and the other end connected to the input terminal A, and is used to transmit the test data of the circuit to be tested to the input terminal A; a display module 104 is configured to present a first state or a second state based on the output data of the output terminal B.

[0021] The transmission module is connected to the circuit to be tested, and is used for transmitting the test data of the circuit to be tested to the input end of the processing module. The control module controls the processing module through a first control signal to pre-process the test data input by the input end and output it through the output end. The output data of the output end is output to the display module to make the display module present a first state or a second state. The staff determines whether the circuit to be tested is abnormal according to the state presented by the display module. That is, by providing a convenient initial inspection method for the equipment to be tested, it is avoided that the front-line staff cannot preliminarily judge the problem of the equipment to be tested, and need to return the equipment to the factory for positioning, resulting in economic loss in time.

[0022] The implementation details of the detection circuit of this embodiment are described in detail below. The following content is only provided for easy understanding of the implementation details and is not necessary for implementing this solution.

[0023] refer to Figure 1 The processing module 101 has a power supply terminal C, a ground terminal D, an enable terminal E, an input terminal A and an output terminal B.

[0024] The power supply terminal C is used to receive the power supply voltage V DD , power supply voltage V DD Used to provide working voltage to the processing module 101 .

[0025] In one example, the detection circuit further includes an internal power supply for providing a power signal to the power terminal C of the processing module 101, wherein the power signal is a power voltage V DD Through the internal power supply, it is ensured that the detection circuit will not be affected by the external connection, and the detection circuit can work without the external power supply, making the detection circuit portable.

[0026] In one embodiment, the internal power supply adopts a DC regulated power supply, which is used as the internal power supply of the circuit to be tested. The output of the DC regulated power supply is stable to avoid the power supply voltage V DD The fluctuation of the output data may cause errors.

[0027] The ground terminal D is used to connect to the "logic ground". For the "logic ground", the transmission of current and information conversion at each level of the circuit in the electronic device requires a reference potential. This potential can also prevent the intrusion of external electromagnetic field signals. In circuit design, this potential is often called "logic ground".

[0028] The input terminal A is used to receive the test data of the circuit under test, and the output terminal B is used to output the data after preprocessing the test data.

[0029] The enable terminal E is used to receive a first control signal, and the first control signal is used to instruct the processing module 101 to pre-process the data input by the input terminal A and output the processed data through the output terminal B.

[0030] The control module 102 is connected to the enable terminal E and is used to provide a first control signal to the processing module.

[0031] In an example, the control module 102 is further used to provide a second control signal to the processing module, and the second control signal is used to instruct the processing module 101 to reset the output terminal B; specifically, the processing module 101 is configured to reset the output terminal B based on the second control signal.

[0032] Specifically, the control module 102 may send the first control signal or the second control signal to the processing module 101 through switch control, or may generate the first control signal or the second control signal through a corresponding external command received to control the processing module 101 .

[0033] In one example, refer to Figure 2 , the control module 102 is implemented by a single-pole double-throw switch 201.

[0034] The single-pole double-throw switch 201 includes a selection terminal S0, a first terminal S1 and a second terminal S2, wherein the selection terminal S0 is connected to the enable terminal E, and one of the first terminal S1 and the second terminal S2 is grounded, and the other is used to receive a power signal.

[0035] Specifically, Figure 2 In the circuit shown, the second terminal S2 of the single-pole double-throw switch 201 is grounded, and the first terminal S1 is used to receive a power signal.

[0036] When the selection terminal S0 is placed at the first terminal S1, it is used to provide a first control signal to the enable terminal E. When the selection terminal S0 is placed at the second terminal S2, it is used to provide a second control signal to the enable terminal E. That is, the first control signal is a high level signal, and the second control signal is a low level signal.

[0037] It should be noted that this embodiment does not constitute a limitation on the first control signal and the second control signal; in other embodiments, the first end may be grounded and the second end may receive a power signal. When the selection end S0 is placed at the first end, it is used to provide the first control signal to the enable end; when the selection end is placed at the second end, it is used to provide the second control signal to the enable end; that is, the first control signal is a low-level signal, and the second control signal is a high-level signal.

[0038] The transmission module 103 has one end connected to the circuit under test and the other end connected to the input terminal A, and is used to transmit the test data of the circuit under test to the input terminal A.

[0039] In one example, refer to Figure 2 The transmission module 103 includes: a connection unit 301 and a transmission unit 302 .

[0040] The connecting unit 301 is configured to connect to the circuit to be tested, and the connecting unit 301 is also connected to the ground terminal D.

[0041] The connecting unit 301 is connected to the ground terminal D, that is, the connecting unit 301 and the processing module 101 are connected to the same “logic ground”, so as to determine whether the level value of the data to be tested transmitted by the transmission module 103 is a high level or a low level.

[0042] The connection unit 301 includes any one of a threaded connection connector, a bayonet connection connector, a latch connection connector, a push-pull connection connector, or a plug-in connection connector. The connection unit 301 is implemented by different types of connectors, so that the detection circuit is adapted to the circuit under test of the device under test, and there is no additional cost increase for the device manufacturer of the device under test, and the practicability is strong.

[0043] The transmission unit 302 is connected to the connection unit 301 and the input terminal A, and is used to transmit the test data of the circuit to be tested obtained by the connection unit 301 to the input terminal A.

[0044] In a specific application, the length of the transmission unit 302 depends on the size of the actual device to be tested, and this embodiment does not limit this.

[0045] The display module 104 is configured to present a first state or a second state based on the output data of the output terminal B.

[0046] Specifically, the display module 104 can be configured as a light-emitting device or a sound-emitting device. In one example, if the display module 104 is a light-emitting device, the first state is a light-emitting state, and the second state is a disabled state; in another example, if the display module 104 is a sound-emitting device, the first state is a sound-emitting state, and the second state is a disabled state.

[0047] In this embodiment, when the display module 104 is placed in the first state based on the high level and in the second state based on the low level; specifically, the display module 104 is a light-emitting device as an example for detailed description, refer to Figure 2 , the display module 104 is connected to the output terminal B, and is placed in a light-emitting state or a prohibited state according to the level output by the output terminal B; when the level output by the output terminal B is a high level, the display module 104 is placed in a light-emitting state, and when the level output by the output terminal B is a low level, the display module 104 is placed in a prohibited state.

[0048] It should be noted that, in other embodiments, the first state of the display module can be set to a disabled state, and the second state can be set to a light-emitting state or a sound-emitting state; similarly, the display module can be set to the first state based on a low level, and to the second state based on a high level. This embodiment does not constitute a limitation on the correspondence between high and low levels and the first state and the second state. Display modules belonging to the above logic should all fall within the scope of protection of the present invention.

[0049] It should be noted that, in other embodiments, the display module 104 can also be configured as other prompt devices in addition to the light-emitting device or the sound-emitting device. If the prompt device only includes two states, and the difference between the two states is obvious and easy to identify, it should all fall within the scope of protection of the present invention.

[0050] In one example, refer to Figure 2 The display module 104 is also connected in series with a protection circuit to prevent the current of the circuit where the display module 104 is located from being too large, thereby reducing the service life of the display module 104.

[0051] Regarding the processing module 101 , the processing module 101 is configured to pre-process the test data inputted from the input terminal A and output the pre-processed data through the output terminal B based on the first control signal; in some embodiments, the processing module 101 further resets the output terminal B based on the second control signal.

[0052] Specifically, the processing module 101 is placed in a first output state based on a first control signal, and in a second output state based on a second control signal; if the processing module 101 is placed in the first output state, the first type of output terminal B1 outputs data corresponding to the first control signal, and the second type of output terminal B2 is connected to the corresponding input terminal; if the processing module 101 is placed in the second output state, the first type of output terminal B1 outputs data corresponding to the second control signal, and resets the second type of output terminal B2.

[0053] In one example, refer to Figure 2The output end B includes a first type of output end B1 and multiple second type of output ends B2. The first output end B1 corresponds to the enable end E, and the second type of output ends B2 correspond to the input ends A respectively. That is, the first output end B1 is used to output the output signal after preprocessing the input signal of the enable end E, and the second output end B2 is used to output the output signal after preprocessing the input signal of the input end A.

[0054] exist Figure 2 The detection circuit shown specifically includes three input terminals A, one first type output terminal B1 and three second type output terminals B2, wherein the first type output terminal B1 corresponds to the enable terminal E, and the three second type output terminals B2 correspond to the three input terminals A one-to-one.

[0055] The enable terminal E is connected to the first type output terminal B1, and the first type output terminal B1 is used to output the data received by the enable terminal E, so as to make the corresponding light-emitting device in the display module 104 work, so that the staff can understand the working status of the detection circuit.

[0056] The input terminal A is connected correspondingly to the second type of output terminal B2, so that the test data of the circuit to be tested received by the output terminal A is received through the second type of output terminal B2. The output data of the second type of output terminal B2 enables the correspondingly connected light-emitting device to work. Through the status of the light-emitting device, the staff can understand the level signal of the circuit to be tested connected to the detection circuit, so as to determine whether there is a fault in the circuit to be tested; the above-mentioned monitoring circuit is mainly used to detect the power supply of the circuit to be tested, and to determine whether the power supply of the circuit to be tested outputs voltage.

[0057] In one example, the detection circuit further includes: a latch unit, and the output terminal B is connected to the display module 104 through the latch unit to maintain the output data of the output terminal B. Through the latch and the internal power supply, it is ensured that the data is still saved after the display module 104 is separated from the device under test, so that the on-site personnel can separate from the device under test for analysis after completing the information collection.

[0058] In one example, the processing module 101 further includes: an encoding unit configured to encode the test data received by the input terminal A, and the second type of output terminal B2 is correspondingly connected to the input terminal A through the encoding unit correspondingly connected to the input terminal A.

[0059] Specifically, the input terminal A is connected to the second type of output terminal B2 through the coding unit, the test data of the circuit under test is transmitted to the input terminal A, and after the test data passes through the coding unit, the encoded data is output from the second type of output terminal B2, thereby realizing the coding analysis function of the test data; for this detection circuit, it is mainly used for querying problems related to the coding method of the coding unit, and the coding method of the coding unit is based on user settings, that is, the detection circuit is used to detect preset problems used for setting.

[0060] In summary, the purpose of this embodiment is to provide a detection circuit to provide a convenient initial inspection method for the device under test, so as to avoid the staff being unable to preliminarily determine the problem of the device under test, thereby saving maintenance costs.

[0061] Another embodiment of the present invention relates to a detection device, including the detection circuit provided by the above embodiment.

[0062] That is, the purpose of this embodiment is to provide a detection circuit to provide a convenient initial inspection method for the device under test, so as to avoid the staff being unable to preliminarily determine the problem of the device under test, thereby saving maintenance costs.

[0063] It is worth mentioning that the modules involved in the above embodiments are all logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, the present embodiment does not introduce units that are not closely related to solving the technical problem proposed by the present invention, but this does not mean that there are no other units in the present embodiment.

[0064] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present invention, and that in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A detection circuit, characterized in that: include: A processing module, comprising a power supply terminal, a ground terminal, an enable terminal, an input terminal and an output terminal, wherein the power supply terminal is used to receive a power supply signal; A control module, connected to the enabling terminal, and configured to provide a first control signal to the processing module; The processing module is configured to, based on the first control signal, pre-process the data to be tested inputted from the input end and then output it through the output end; A transmission module, one end of which is connected to the circuit to be tested and the other end of which is connected to the input end, and is used to transmit the data to be tested of the circuit to be tested to the input end; A display module, configured to present a first state or a second state based on output data of the output terminal; The processing module further includes an encoding unit, which is configured to encode the data to be tested received by the input end, and the encoding method of the encoding unit is based on user settings and is used to detect preset problems set by the user; The transmission module comprises: A connecting unit is configured to connect the circuit to be tested, wherein the connecting unit is also connected to the ground terminal to determine whether the level value of the data to be tested transmitted by the transmission module is a high level or a low level; a transmission unit, connected to the connection unit and the input end, and used for transmitting the test data of the circuit to be tested to the input end; The control module is further used to provide a second control signal to the processing module, and the processing module is configured to reset the output terminal based on the second control signal; The output end includes a first type of output end and a plurality of second type of output ends, the first type of output end corresponds to the enable end, and the second type of output ends respectively correspond to the input ends; The processing module is configured to be placed in a first output state based on the first control signal and in a second output state based on the second control signal; If the processing module is placed in the first output state, the first type of output terminal outputs data corresponding to the first control signal, and the second type of output terminal is correspondingly connected to the input terminal; If the processing module is placed in the second output state, the first type of output terminal outputs data corresponding to the second control signal, and the second type of output terminal is reset; The second type of output end is correspondingly connected to the input end through the encoding unit correspondingly connected to the input end.

2. The detection circuit according to claim 1, characterized in that: Also includes: An internal power supply, connected to the power supply terminal, and used to provide the power supply signal to the processing module; A latch unit, wherein the output end is connected to the display module via the latch unit, and is used to maintain the output data of the output end.

3. The detection circuit according to claim 1, characterized in that: The control module comprises: A single-pole double-throw switch, comprising a selection end, a first end, and a second end, wherein the selection end is connected to the enable end, and one of the first end and the second end is grounded, and the other end is used to receive the power signal; When the selection end is placed at the first end, it is used to provide the first control signal to the enable end; when the selection end is placed at the second end, it is used to provide the second control signal to the enable end.

4. The detection circuit according to claim 1, characterized in that: The display module includes a light-emitting device or a sound-emitting device; If the display module is the light-emitting device, the first state is a light-emitting state, and the second state is a disabled state; If the display module is the sound-emitting device, the first state is a sound-emitting state, and the second state is a disabled state.

5. The detection circuit according to claim 1, characterized in that: The connection unit comprises: any one of a threaded connection connector, a bayonet connection connector, a latch connection connector, a push-pull connection connector or a plug-in connection connector.

6. A detection device, characterized in that: The method comprises a detection circuit as claimed in any one of claims 1 to 5.

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