CN116953504A

CN116953504A - Detection circuit and equipment

Info

Publication number: CN116953504A
Application number: CN202310546441.0A
Authority: CN
Inventors: 刘昌东; 罗廷刚; 乔东方
Original assignee: Chongqing University; Seres Group Co Ltd
Current assignee: Chongqing University; Seres Group Co Ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-27
Anticipated expiration: 2043-05-15

Abstract

The embodiment of the application provides a detection circuit and a detection device, wherein the circuit comprises: the first switch module is used for connecting with a first end of a power supply; the input end of the first selection branch is connected with the other end of the first switch module, and the power end of the first selection branch is used for being connected with the second end of the power supply; the control end of the second selection branch is connected with the output end of the first selection branch, the power end of the second selection branch is used for being connected with the second end of the power supply, each group of output ends of the second selection branch are respectively used for being electrically connected with the input end of a corresponding test motor in the target equipment, and the test motors with different groups of output ends electrically connected are different; n is an integer greater than 0. The circuit can realize automatic test of the motor of the target equipment by adjusting the motor position of the target equipment.

Description

Detection circuit and equipment

Technical Field

The application relates to the field of automobile accessory detection, in particular to a detection circuit and detection equipment.

Background

The automobile gradually moves to automation and intellectualization, the electric seat has the function of adjusting the position of the seat, and a user can adjust the position of the seat, so that the seat is convenient for the user to drive or rest in the seat. The function of adjusting the seat position of the electric seat can improve the comfort of the seat and provide better vehicle experience for users. In some techniques, the power seat includes an external adjustment box, MCU (Microcontroller Unit, single chip microcomputer), motor. The basic working principle is that the peripheral regulating box inputs control signals to the MCU, so that the MCU controls the motor to work, and the position of the electric seat is regulated.

It is necessary to perform detection and evaluation of performance of various aspects of the power seat. Among them, reliability is an important quality index of the power seat. The reliability of the power seat position adjustment refers to the repeatability of the power seat position adjustment without failure.

Currently, the reliability detection for the position adjustment of the power seat needs to be completed manually, for example, the position of the power seat is adjusted repeatedly by manually operating an external adjusting box. The manual testing method has high cost, long period and lack of continuity and stability.

Disclosure of Invention

In view of the above, the present application provides a detection circuit and a detection device, which are beneficial to solving the problems of high cost, long period, lack of continuity and stability, which are caused by manual completion of the reliability detection of the position adjustment of the electric seat in the prior art.

In a first aspect, an embodiment of the present application provides a detection circuit, including:

one end of the first switch module is used for being connected with a first end of a power supply;

the input end of the first selection branch is connected with the other end of the first switch module, and the power end of the first selection branch is used for being connected with the second end of the power supply;

the control end of the second selection branch comprises n groups of output ends, the control end of the second selection branch is connected with the output end of the first selection branch, the power end of the second selection branch is used for being connected with the second end of the power supply, each group of output ends of the second selection branch is respectively used for being electrically connected with the input end of a corresponding test motor in the target equipment, and the test motors with different groups of output ends electrically connected are different; n is an integer greater than 0; wherein,

The first selecting branch circuit is used for controlling n groups of output ends of the second selecting branch circuit to output a first adjusting signal or a second adjusting signal when the first switching module is conducted; the first adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a first target direction; the second adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a second target direction; the first target direction is the reverse of the second target direction; the first target directions corresponding to the different test motors are different, and the second target directions corresponding to the different test motors are different;

the second selecting branch is used for outputting a first adjusting signal or a second adjusting signal through the n groups of output ends under the control of the first selecting branch.

In a possible implementation manner of the first aspect, each of the n sets of output terminals includes a first output terminal and a second output terminal;

for each group of output ends of the second selection branch, a first output end of the group of output ends is used for being electrically connected with a first input end of a target test motor, and a second output end of the group of output ends is used for being electrically connected with a second input end of the target test motor; the target test motor is a test motor in the target device for electrical connection with the set of outputs.

In a possible implementation manner of the first aspect, the second selecting branch includes n groups of adjustment modules;

for each group of adjustment modules of the second selection branch, a first output end in the adjustment module is used for being electrically connected with a first input end of a target test motor, and a second output end in the adjustment module is used for being electrically connected with a second input end of the target test motor;

and a control end in the adjusting module is connected with a corresponding output end in the first selecting branch.

In a possible implementation manner of the first aspect, each set of adjustment modules includes a first adjustment module and a second adjustment module;

for each group of adjustment modules of the second selection branch, the output end of a first adjustment module in the adjustment modules is used for being electrically connected with the first input end of the target test motor, and the output end of a second adjustment module in the adjustment modules is used for being electrically connected with the second input end of the target test motor;

a control end of a first adjusting module in the adjusting module is connected with a corresponding first output end in the first selecting branch; and the control end of a second adjusting module in the adjusting module is connected with a corresponding second output end in the first selecting branch.

In a possible implementation manner of the first aspect, when the value of n is 1, the first selecting branch includes a selecting module;

the input end of the selection module is connected with the other end of the first switch module, the power end of the selection module is used for being connected with the second end of the power supply, the first output end of the selection module is connected with the control end of the first adjustment module, and the second output end of the selection module is connected with the control end of the second adjustment module;

the selection module is used for sending a trigger signal to the control end of the first adjustment module at the first time of each preset period when the first switch module is turned on; sending a trigger signal to a control end of the second adjusting module at a second time of each preset period;

the first adjusting module is used for outputting a first adjusting signal at a first adjusting time of each preset first adjusting period of the received trigger signal and not outputting the first adjusting signal at a second adjusting time of each preset first adjusting period of the received trigger signal; the second adjustment time of the first adjustment period is other time than the first adjustment time in the first adjustment period;

The second adjusting module is configured to output a second adjusting signal at a first adjusting time of each preset second adjusting period when the trigger signal is received, and not output the second adjusting signal at a second adjusting time of each preset second adjusting period when the trigger signal is received; the second adjustment time of the second adjustment period is other than the first adjustment time in the second adjustment period.

In a possible implementation manner of the first aspect, when the value of n is greater than 1, the first selection branch includes x stage selection groups, and power supply terminals of selection modules included in each stage selection group are all used for connecting with a second terminal of a power supply; wherein x has the value ofThe i-th level selection group includes +.>A selection module i is an integer greater than 0 and not greater than x;

the first output end of the selection module in the 1 st-stage selection group is connected with the control end of the corresponding first adjustment module, and the second output end of the selection module in the 1 st-stage selection group is connected with the control end of the corresponding second adjustment module;

the input end of the selection module of the x-th stage selection group is connected with the other end of the first switch module;

the first output end of the selection module in the m-th level selection group is connected with the input end of the corresponding selection module in the m-1 th level selection group; the second output end of the selection module in the m-th level selection group is connected with the input end of the corresponding selection module in the m-1 th level selection group; m is an integer greater than 1 and not greater than x;

For each selection module, the input of the selection module is electrically connected to only one of the first output and the second output at the same time.

In a possible implementation manner of the first aspect, the selecting module of the x-th stage selecting group is configured to output, when the first switching module is turned on, a trigger signal through the first output terminal at a first time of each preset period corresponding to the x-th stage selecting group, and output, through the second output terminal, a trigger signal at a second time of each preset period of the x-th stage selecting group;

the selecting module of the s-th level selecting group is used for outputting the trigger signal through the first output end at the first time of each preset target period of the received trigger signal and outputting the trigger signal through the second output end at the second time of each preset target period of the received trigger signal when the trigger signal output by the s+1th level selecting group is received; wherein s is an integer greater than 1 and less than x; the preset target period is a preset period corresponding to the selection module of the s-th level selection group; the preset target period is smaller than the preset period corresponding to the selection module of the x-th level selection group;

In a possible implementation manner of the first aspect, the selection module includes a time relay.

In a possible implementation manner of the first aspect, the first adjustment module and the second adjustment module include a time relay.

In a possible implementation manner of the first aspect, the method further includes: at least one second switch;

the at least one second switch is arranged between the input end of at least one selection module in the 1 st stage selection group and the first output end or the second output end of the corresponding selection module in the 2 nd stage selection group.

In a second aspect, an embodiment of the present application provides a detection apparatus, including a detection circuit as set forth in any one of the first aspects above.

By adopting the scheme provided by the embodiment of the application, the detection circuit comprises: the first switch module, the first selection branch and the second selection branch. One end of the first switch module is used for being connected with a first end of a power supply; the input end of the first selection branch is connected with the other end of the first switch module, and the power end of the first selection branch is used for being connected with the second end of the power supply; the second selection branch comprises n groups of output ends, the control end of the second selection branch is connected with the output end of the first selection branch, the power end of the second selection branch is used for being connected with the second end of the power supply, each group of output ends of the second selection branch is respectively used for being electrically connected with the input end of each test motor in the target equipment, and the test motors with different groups of output ends electrically connected are different; n is an integer greater than 0; the first selecting branch circuit is used for controlling n groups of output ends of the second selecting branch circuit to output a first adjusting signal or a second adjusting signal when the first switching module is conducted; the first adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a first target direction; the second adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a second target direction; the first target direction is the reverse of the second target direction; the first target directions corresponding to the different test motors are different, and the second target directions corresponding to the different test motors are different; and the second selection branch is used for outputting the first adjustment signal or the second adjustment signal through n groups of output ends under the control of the first selection branch. Thus, in the embodiment of the present application, when the first switch module is turned on, the first selecting branch controls the n groups of output ends of the second selecting branch to output the first adjusting signal or the second adjusting signal, and triggers the test motor of the target device to perform position adjustment along the first target direction or the second target direction. The detection circuit can automatically adjust the position of the test motor of the target equipment, so that the automatic test of the motor of the target equipment can be realized by adjusting the position of the motor of the target equipment, the manual participation is reduced, the detection efficiency is improved, the test cost is saved, and the continuity and the stability are realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a detection circuit according to an embodiment of the present application;

FIG. 2 is a schematic diagram of another detection circuit according to an embodiment of the present application;

FIG. 3 is a schematic diagram of another detection circuit according to an embodiment of the present application;

FIG. 4 is a schematic diagram of another detection circuit according to an embodiment of the present application;

FIG. 5 is a schematic diagram of another detection circuit according to an embodiment of the present application;

FIG. 6 is a schematic diagram of another detection circuit according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another detection circuit according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another detection circuit according to an embodiment of the present application.

Detailed Description

For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In view of the above problems, an embodiment of the present application provides a detection circuit and a device, where the detection circuit includes: the first switch module, the first selection branch and the second selection branch. One end of the first switch module is used for being connected with a first end of a power supply; the input end of the first selection branch is connected with the other end of the first switch module, and the power end of the first selection branch is used for being connected with the second end of the power supply; the second selection branch comprises n groups of output ends, the control end of the second selection branch is connected with the output end of the first selection branch, the power end of the second selection branch is used for being connected with the second end of the power supply, each group of output ends of the second selection branch is respectively used for being electrically connected with the input end of each test motor in the target equipment, and the test motors with different groups of output ends electrically connected are different; n is an integer greater than 0; the first selecting branch circuit is used for controlling n groups of output ends of the second selecting branch circuit to output a first adjusting signal or a second adjusting signal when the first switching module is conducted; the first adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a first target direction; the second adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a second target direction; the first target direction is the reverse of the second target direction; the first target directions corresponding to the different test motors are different, and the second target directions corresponding to the different test motors are different; and the second selection branch is used for outputting the first adjustment signal or the second adjustment signal through n groups of output ends under the control of the first selection branch. Thus, in the embodiment of the present application, when the first switch module is turned on, the first selecting branch controls the n groups of output ends of the second selecting branch to output the first adjusting signal or the second adjusting signal, and triggers the test motor of the target device to perform position adjustment along the first target direction or the second target direction. The detection circuit can automatically adjust the position of the test motor of the target equipment, so that the automatic test of the motor of the target equipment can be realized by adjusting the position of the motor of the target equipment, the manual participation is reduced, the detection efficiency is improved, the test cost is saved, and the continuity and the stability are realized. The following is a detailed description.

Referring to fig. 1, a schematic structural diagram of a detection circuit according to an embodiment of the present application is provided. As shown in fig. 1, the detection circuit includes: the first switch module 10, one end of the first switch module 10 is used for connecting with a first end of a power supply.

The input end of the first selection branch 20 is connected with the other end of the first switch module 10, and the power end of the first selection branch 20 is used for being connected with the second end of the power supply.

The second selecting branch 30, the second selecting branch 30 includes n groups of output ends, the control end of the second selecting branch 30 is connected with the output end of the first selecting branch 20, the power end of the second selecting branch 30 is used for connecting with the second end of the power supply, the input end of each group of output ends of the second selecting branch 30 is respectively used for electrically connecting with the corresponding test motor in the target equipment, and the test motors electrically connected with different groups of output ends are different; n is an integer greater than 0.

The first selecting branch 20 is configured to control the n groups of output terminals of the second selecting branch 30 to output a first adjustment signal or a second adjustment signal when the first switch module 10 is turned on; the first adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a first target direction; the second adjusting signal is used for triggering a test motor of the target equipment to adjust the position along a second target direction; the first target direction is the reverse of the second target direction; the first target directions corresponding to the different test motors are different, and the second target directions corresponding to the different test motors are different.

The second selecting branch 30 is configured to output the first adjustment signal or the second adjustment signal through n sets of output terminals under the control of the first selecting branch 20.

In the embodiment of the present application, the first switch module 10 is used for controlling whether the detection circuit is powered. When the first switch module 10 is disconnected from the first end of the power supply, the power supply does not supply power to the detection circuit; when the connection between the first switch module 10 and the first end of the power supply is turned on, the power supply supplies power to the detection circuit. The first end of the power supply may be a positive power supply or a negative power supply, which is not limited in the present application. In some embodiments, the first switch module 10 may be a switch.

The input end of the first selection branch 20 is connected to the other end of the first switch module 10, and the power end of the first selection branch 20 is used for connecting with the second end of the power supply. Thus, when the first switch module 10 is turned on, the power supply supplies power to the first selection branch 20, and the first selection branch 20 is in an operating state. The control terminal of the second selection branch 30 is connected to the output terminal of the first selection branch 20. Thus, when the first switch module 10 is turned on, the first selecting branch 20 may control the n groups of output terminals of the second selecting branch 30 to output the first adjustment signal or the second adjustment signal. In some embodiments, the control terminal of the first selecting branch 20 may output different signals to control the n groups of output terminals of the second selecting branch 30 to output the first adjustment signal or the second adjustment signal. Alternatively, in some embodiments, the control terminal of the first selecting branch 20 may output different signals at different times to control the n groups of output terminals of the second selecting branch 30 to output the first adjustment signal or the second adjustment signal at different times.

The second selecting branch 30 includes n groups of output ends, and when the second selecting branch 30 outputs a first adjustment signal under the control of the first selecting branch 20, a corresponding test motor in the target device receives the first adjustment signal and performs position adjustment along a first target direction; when the second selecting branch 30 outputs the second adjustment signal under the control of the first selecting branch 20, the corresponding test motor in the target device receives the second adjustment signal and performs position adjustment along the second target direction.

It should be noted that the test motor may have at least one set of test directions, and each set of test directions corresponds to one set of input terminals, that is, the test motor includes at least one set of input terminals. When the test motor comprises at least two groups of test directions, the at least two groups of test directions are different from each other. For each of at least one set of test directions of the test motor, the set of test directions includes a first target direction, a second target direction, and the first target direction and the second target direction are opposite to each other. The first target directions contained in the different sets of test directions are each different, and the second target directions are each different. For example, the test motor includes two sets of test directions, one of which is a height adjustment and the other of which is a front-to-back position adjustment. For the set of test directions for height adjustment, the first target direction may be a direction moving from high to low and the second target direction is a direction moving from low to high. For the set of test directions for front-to-back position adjustment, the first target direction may be a direction moving from front to back, and the second target direction is a direction moving from back to front.

The different groups of input ends of the test motor are in one-to-one correspondence with the output ends of the second selection branch circuits, and the output ends of the second selection branch circuits corresponding to the different groups of input ends of the test motor are different.

In some embodiments, the target device may contain at least one test motor. For example, the target device may be a power seat. The test motor of the target device may include a bi-directional motor for adjusting the angle of the seat back, a bi-directional motor for adjusting the height of the seat, a bi-directional motor for adjusting the front and rear positions of the seat, a bi-directional motor for adjusting the angle of the headrest, to which the present application is not limited. The test motor for the target device comprises a motor for adjusting the height of the seat, the corresponding test direction of the motor is the height of the seat, the first target direction included in the motor can be the direction from the high position to the low position of the seat, and the second target direction is the direction from the low position to the high position. The test motor for the target device includes a motor for adjusting the angle of the seat back, the test direction corresponding to the motor is the angle of the seat back, the first target direction included therein may be the direction in which the seat back leans forward, and the second target direction is the direction in which the seat back leans backward, accordingly.

When the first switch module 10 is turned on, the power supply supplies power to the detection circuit, the first selection branch 20 controls the n groups of output ends of the second selection branch 30 to output a first adjustment signal or a second adjustment signal, and the corresponding test motor in the target device receives the first adjustment signal or the second adjustment signal and adjusts the position along the first target direction or the second target direction. The detection circuit can automatically adjust the position of the test motor of the target equipment, so that the automatic test of the motor of the target equipment can be realized by adjusting the position of the motor of the target equipment, the manual participation is reduced, the detection efficiency is improved, the test cost is saved, and the continuity and the stability are realized.

As a possible implementation manner, each of the n groups of output terminals includes a first output terminal and a second output terminal; for each set of outputs of the second selection branch 30, a first output of the set of outputs is for electrically connecting to a first input of the target test motor and a second output of the set of outputs is for electrically connecting to a second input of the target test motor.

Wherein the target test motor is a test motor in the target device for electrical connection with the set of outputs.

In the embodiment of the present application, for each group of output ends of the second selection branch 30, a first output end of the group of output ends is used for electrically connecting with a first input end of the target test motor, and can output a first adjustment signal to trigger the target test motor to perform position adjustment along a first target direction; the second output end of the group of output ends is used for being electrically connected with the second input end of the target test motor, and can output a second adjusting signal to trigger the target test motor to adjust the position along the second target direction. Wherein the target test motor is a test motor in the target device for electrical connection with the set of outputs.

The output ends of the second selection branch corresponding to the different groups of input ends in the test motor of the target device are different, namely, the first input ends and the second input ends of the different groups in the test motor of the target device are corresponding to the first output ends and the second input ends of the different groups in the second selection branch 30. For example, if the test motor of the target device includes two sets of test directions, that is, 2 sets of input ends, the test motor of the target device may be detected by using the detection circuit with n=2 in the present application. A first input of the 1 st set of inputs of the test motor is electrically connected to a first output of the 1 st set of outputs of the second selection branch 30, and a second input of the 1 st set of inputs of the test motor is electrically connected to a second output of the 1 st set of outputs of the second selection branch 30. A first input of the 2 nd set of inputs of the test motor is electrically connected to a first output of the 2 nd set of outputs of the second selection branch 30, and a second input of the 2 nd set of inputs of the test motor is electrically connected to a second output of the 2 nd set of outputs of the second selection branch 30.

As a possible implementation, as shown in fig. 2, the second selecting branch 30 includes n groups of adjustment modules 301.

For each group of adjustment modules 301 of the second selection branch 30, a first output terminal in the adjustment module 301 is used for electrically connecting a first input terminal of the target test motor, and a second output terminal in the adjustment module 301 is used for electrically connecting a second input terminal of the target test motor.

The control terminal of the adjustment module 301 is connected to a corresponding output terminal of the first selection branch 20.

In the embodiment of the present application, the control end in the adjustment module 301 is connected to the corresponding output end in the first selection branch 20. Thus, when the first switch module 10 is turned on, the first selecting branch 20 may control the n groups of adjustment modules 301 of the second selecting branch 30 to output the first adjustment signal or the second adjustment signal.

For each group of adjustment modules 301 of the second selection branch 30, the first output end of each group of adjustment modules 301 is the first output end of each group of output ends in the detection circuit, and the second output end of each group of adjustment modules 301 is the second output end of each group of output ends in the detection circuit.

The first output end of the adjustment module 301 is configured to be electrically connected to the first input end of the target test motor, and may output a first adjustment signal to trigger the target test motor to perform position adjustment along the first target direction; the second output end of the adjustment module 301 is configured to be electrically connected to the second input end of the target test motor, and may output a second adjustment signal to trigger the target test motor to perform position adjustment along the second target direction.

Different sets of inputs of the test motor of the target device correspond to different sets of adjustment modules 301 in the second selection branch 30. For example, n=2, i.e. the second selection branch 30 comprises 2 sets of adjustment modules. The test motor of the target device comprises at least 2 sets of inputs, a first input of the 1 st set of inputs of the test motor of the target device being electrically connectable to a first output of the 1 st set of adjustment modules 301 in the second selection branch 30, and a second input of the 1 st set of inputs of the test motor being electrically connectable to a second output of the 1 st set of adjustment modules 301 in the second selection branch 30. A first input of the 2 nd set of inputs of the test motor is electrically connected to a first output of the 2 nd set of adjustment modules 301 in the second selection branch 30, and a second input of the 2 nd set of inputs of the test motor is electrically connected to a second output of the 2 nd set of adjustment modules 301 in the second selection branch 30.

As a possible implementation, as shown in fig. 3, each set of adjustment modules 301 includes a first adjustment module 3011 and a second adjustment module 3012.

For each group of adjustment modules 301 of the second selection branch 30, an output end of a first adjustment module 3011 in the adjustment modules is used for being electrically connected to a first input end of the target test motor, and an output end of a second adjustment module 3012 in the adjustment modules is used for being electrically connected to a second input end of the target test motor.

The control end of a first adjusting module 3011 in the adjusting module is connected with a corresponding first output end in the first selecting branch 20; the control end of the second adjusting module 3012 in the adjusting module is connected to the corresponding second output end in the first selecting branch 20.

In the embodiment of the present application, the output end of the first adjustment module 3011 in each set of adjustment modules 301 is the first output end of each set of adjustment modules 301 in the detection circuit, and the output end of the second adjustment module 3012 is the second output end of each set of adjustment modules 301 in the detection circuit. For each group of adjustment modules 301 of the second selection branch 30, an output end of a first adjustment module 3011 in the adjustment modules is used for being electrically connected to a first input end of the target test motor, and an output end of a second adjustment module 3012 in the adjustment modules is used for being electrically connected to a second input end of the target test motor.

When the first switch module 10 is turned on, the first selecting branch 20 controls the first adjusting module 3011 in the adjusting module 301 of the second selecting branch 30 to input a first adjusting signal to the first input end of the target test motor; the first selecting branch 20 controls the second adjusting module 3012 in the adjusting module 301 of the second selecting branch 30 to input the second adjusting signal to the second input terminal of the target test motor.

Different sets of inputs of the test motor of the target device correspond to the first 3011 and second 3012 adjustment modules of different sets of adjustment modules 301 in the second selection branch 30. For example, n=2, i.e. the second selection branch 30 comprises 2 sets of adjustment modules. The test motor of the target device includes at least 2 sets of input terminals, a first input terminal of the 1 st set of input terminals of the test motor of the target device may be electrically connected to an output terminal of the first adjustment module 3011 of the 1 st set of adjustment modules 301 in the second selection branch 30, and a second input terminal of the 1 st set of input terminals of the test motor is electrically connected to an output terminal of the second adjustment module 3012 of the 1 st set of adjustment modules 301 in the second selection branch 30. A first input of the 2 nd set of inputs of the test motor is electrically connected to the output of the first adjustment module 3011 of the 2 nd set of adjustment modules 301 in the second selection branch 30, and a second input of the 2 nd set of inputs of the test motor is electrically connected to the output of the second adjustment module 3012 of the 2 nd set of adjustment modules 301 in the second selection branch 30.

As a possible implementation, as shown in fig. 4, when the value of n is 1, the first selection branch 20 includes a selection module 201.

The input end of the selection module 201 is connected with the other end of the first switch module 10, the power end of the selection module 201 is used for being connected with the second end of the power supply, the first output end of the selection module 201 is connected with the control end of the first adjustment module 301, and the second output end of the selection module 201 is connected with the control end of the second adjustment module 302.

A selection module 201, configured to send a trigger signal to a control end of the first adjustment module 301 at a first time of each preset period when the first switch module 10 is turned on; and sending a trigger signal to the control end of the second adjustment module 302 at a second time of each preset period.

The first adjustment module 3011 is configured to output a first adjustment signal at a first adjustment time of each preset first adjustment period when the trigger signal is received, and not output the first adjustment signal at a second adjustment time of each preset first adjustment period when the trigger signal is received; the second adjustment time of the first adjustment period is other time than the first adjustment time in the first adjustment period.

The second adjustment module 3012 is configured to output a second adjustment signal at a first adjustment time of each preset second adjustment period when the trigger signal is received, and not output the second adjustment signal at a second adjustment time of each preset second adjustment period when the trigger signal is received; the second adjustment time of the second adjustment period is other time than the first adjustment time in the second adjustment period.

In the embodiment of the present application, n is 1, that is, the second selecting branch 30 of the detection circuit includes 1 group of adjustment modules 301, and the adjustment modules 301 include a first adjustment module 3011 and a second adjustment module 3012. At this time, the first selection branch 20 may include a selection module 201. An input terminal of the selection module 201 is connected to the other terminal of the first switch module 10, and a power terminal of the selection module 201 is used for connecting to a second terminal of the power supply. Thus, when the first switch module 10 is turned on, the power supply supplies power to the selection module 301, and the selection module 201 is in an operating state. When the selection module 201 is in a working state, the touch signal is periodically output, the touch signal is sent to the control end of the first adjustment module 3011 at the first time of each preset period, and the touch signal is sent to the control end of the second adjustment module 3012 at the second time of each preset period.

The first adjustment module 3011 supplies power to the first adjustment module 3011 in a time period when the trigger signal is received, and the first adjustment module 3011 is in a working state. When the first adjustment module 3011 is in an operating state, the first adjustment signal is periodically output, the first adjustment signal is output at a first adjustment time of each preset first adjustment period, and the first adjustment signal is not output at a second adjustment time of each preset first adjustment period. The target test motor receives the first adjustment signal at a first adjustment time of each preset first adjustment period, adjusts the position along the first target direction, does not receive the first adjustment signal at other times except the first adjustment time in the first adjustment period, namely, at a second adjustment time, and does not adjust the position along the first target direction.

The second adjustment module 3012 supplies power to the second adjustment module 3012 in a time period when the trigger signal is received, and the second adjustment module 3012 is in an operating state. When the second adjustment module 3012 is in an operating state, a second adjustment signal is output at a first adjustment time of each preset second adjustment period, and the second adjustment signal is not output at a second adjustment time of each preset second adjustment period. In this way, the target test motor receives the second adjustment signal at the first adjustment time of each preset second adjustment period, and performs position adjustment along the second target direction, and the second adjustment signal is not received at other times except the first adjustment time in the second adjustment period, that is, the second adjustment time, and does not perform position adjustment in the second target direction.

In the first adjustment period, the first adjustment time may be located after the second adjustment time or may be located before the second adjustment time. When the first adjustment time is after the second adjustment time, the first adjustment module 3011 needs to output no first adjustment signal in the second adjustment time when the first adjustment module 3011 is in an operating state, and starts to output the first adjustment signal when the second adjustment time ends and reaches the first adjustment time. When the first adjustment time is before the second adjustment time, the first adjustment module 3011 needs to output the first adjustment signal in the first adjustment time when the first adjustment module 3011 is in the working state, and stops outputting the first adjustment signal when the first adjustment time ends and reaches the second adjustment time. Similarly, for the second adjustment period, the first adjustment time may be located after the second adjustment time or may be located before the second adjustment time, and the first adjustment period may be referred to specifically, which is not described herein.

It should be noted that, the first time of the preset period is greater than or equal to the first adjustment period, and the second time of the preset period is greater than or equal to the second adjustment period. For example, assume that the first time of the preset period is T1 and the second time of the preset period is T2. The first adjustment period is t3, and the second adjustment period is t4. T1 is greater than or equal to T3 and T2 is greater than or equal to T4. In some embodiments, to improve the test efficiency, the first time of the preset period is equal to the preset first adjustment period, and the second time of the preset period is equal to the preset second adjustment period.

In some embodiments, to ensure the completeness of the test, the first adjustment time of the preset first adjustment period may be set to be greater than or equal to a time required for the target test motor to perform position adjustment in the first target direction to move from one end to the other end. The first adjustment time of the preset second adjustment period may be set to be greater than or equal to a time required for the target test motor to perform position adjustment in the second target direction to move from one end to the other end. For example, the target device is a power seat, the target test motor is a motor for adjusting the height of the seat, the first target direction is the direction from the high position to the low position of the seat, the time required for the target test motor to perform position adjustment to move the seat from the highest position to the lowest position is t5, and the first adjustment time of the first adjustment period may be set to a time greater than or equal to t 5. The second target direction is the direction from the lower position to the higher position of the seat, the time required for the target test motor to adjust the position of the seat from the lowest position to the highest position is t6, and the first adjustment time of the second adjustment period can be set to be greater than or equal to the time t 6.

As a possible implementation manner, when the value of n is greater than 1, as shown in fig. 5, the first selection branch 20 includes x selection groups, and the power supply terminals of the selection modules included in each selection group are all used for connecting to the second terminal of the power supply; wherein x has the value ofThe i-th level selection group includes +.>And a selection module i is an integer greater than 0 and not greater than x.

The first output end of the selection module in the 1 st-stage selection group is connected with the control end of the corresponding first adjustment module, and the second output end of the selection module in the 1 st-stage selection group is connected with the control end of the corresponding second adjustment module.

The input end of the selection module of the x-th stage selection group is connected with the other end of the first switch module 10.

The first output end of the selection module in the m-th level selection group is connected with the input end of the corresponding selection module in the m-1 th level selection group; the second output end of the selection module in the m-th level selection group is connected with the input end of the corresponding selection module in the m-1 th level selection group; m is an integer greater than 1 and not greater than x.

In the embodiment of the present application, the value of n is greater than 1, that is, the second selecting branch 30 includes at least 2 groups of adjustment modules 301, and the adjustment modules 301 include a first adjustment module 3011 and a second adjustment module 3012. At this time, the first selection branch comprises an x-level selection group, wherein the value of x is For example, when n=2, x=2; when n=3, x=3; when n=4, x=3. The i-th level selection group includes +.>A selection module 201.

The x-th level selection group comprisesThe selection module 201, i.e. the x-th selection group comprises + ->The selection modules 201, that is, the x-th level selection group includes 1 selection module 201. The input terminal of the selection module 201 of the x-th stage selection group is connected to the other terminal of the first switch module 10.

For one of the 2 nd to the x th selection groups, i.e. the m th selection group comprisesAnd a selection module 201, wherein m is an integer greater than 1 and not greater than x. The m-1 th level selection group comprises +.>The selection modules 201 are respectively configured as a first selection module 201a and a second selection module 201b, and the first selection module 201a and the second selection module 201b are alternately arranged in the m-1 st level selection group, as shown in fig. 5. Selection module 2 in the m-th selection group01 is connected with the input end of the corresponding selection module 201 in the m-1 level selection group, namely +.>The first output of each selection module 201 is connected to the input of a first selection module 201a in the m-1 th selection group, and the inputs of the first selection modules 201a in the m-1 th selection group to which the first outputs of different selection modules 201 in the m-1 th selection group are connected are different. The second output end of the selection module 201 in the m-th selection group is connected with the input end of the corresponding selection module 201 in the m-1 st selection group, namely the +. >The second output terminals of the selection modules 201 are respectively connected to the input terminals of the second selection module 201b in the m-1 th stage selection group, and the input terminals of the second selection module 201b in the m-1 th stage selection group to which the second output terminals of different selection modules 201 in the m-1 th stage selection group are connected are different.

Included in the class 1 selection groupThe selection modules 201, that is, the 1 st level selection group includes n selection modules 201. Different selection modules 201 of the n selection modules 201 of the 1 st selection group are respectively connected with different groups of adjustment modules 301 of the second selection branch 30. The first output ends of the n selection modules 201 of the 1 st-stage selection group are respectively connected with the control ends of the first adjustment modules 3011 in the n groups of adjustment modules 301, and the control ends of the first adjustment modules 3011 connected with the first output ends of the different selection modules 201 are different; the second output ends of the n selection modules 201 of the 1 st stage selection group are respectively connected with the control ends of the second adjustment modules 3012 in the n groups of adjustment modules 301, and the control ends of the second adjustment modules 3012 connected with the second output ends of different selection modules 201 are different.

For each selection module 201, the input of the selection module 201 is electrically connected to only one of the first output and the second output at the same time. In this way, only one of the first and second outputs of each selection module 201 may output a signal at the same time. At the same time, for 1 selection module 201 in the x-th stage selection group, the selection module outputs a trigger signal to only one of the first output terminal and the second output terminal. For the x-1 level selection group, only one of the first selection module 201a and the second selection module 201b receives the touch signal and is in an operating state. For the selection module 201 in the x-1 stage selection group in operation, the selection module 201 outputs a trigger signal to only one of the first output terminal and the second output terminal. For the x-2 level selection group, only one of the first selection module 201a and the second selection module 201b connected to the selection module 201 in the working state in the x-1 level selection group receives the touch signal, and is in the working state. By analogy, only one selection module 201 in the 1 st-stage selection group receives a trigger signal and is in an operating state. For the second selecting branch 30, only one group of adjusting modules 301 connected to the selecting module 201 in the working state in the above-mentioned level 1 selecting group receives the touch signal, and is in the working state. Only the test motor connected with the adjustment module 301 in the working state is in the working state in the target equipment at the same time, and the other test motors do not perform position adjustment. Thus, the condition that the temperature of the test motor is too high due to the fact that the test motor continuously works for a long time is avoided.

Exemplary, as shown in fig. 6, assuming n=4, thenI.e. the first selection branch comprises a 3-level selection group.

The second selecting branch 30 includes 4 groups of adjusting modules 301, as shown in fig. 6, from left to right, a 1 st group of adjusting modules 301, a 2 nd group of adjusting modules 301, a 3 rd group of adjusting modules 301, and a 4 th group of adjusting modules 301; each set of adjustment modules includes a first adjustment module 3011 and a second adjustment module 3012.

The 1 st-stage selection group includes 4 selection modules 201, and the 4 selection modules of the 1 st-stage selection group are alternately arranged as a first selection module 201a and a second selection module 201b. The first output end of the 1 st first selection module 201a is connected to the control end of the first adjustment module 3011 in the 1 st group of adjustment modules 301, and the second output end is connected to the control end of the second adjustment module 3012 in the 1 st group of adjustment modules 301. The first output end of the 1 st second selection module 202 is connected to the control end of the first adjustment module 3011 in the 2 nd group adjustment module 301, and the second output end is connected to the control end of the second adjustment module 3012 in the 2 nd group adjustment module 301. The first output end of the 2 nd first selection module 201a is connected to the control end of the first adjustment module 3011 in the 3 rd group adjustment module 301, and the second output end is connected to the control end of the second adjustment module 3012 in the 3 rd group adjustment module 301. The first output end of the 2 nd second selection module 201b is connected to the control end of the first adjustment module 3011 in the 4 th group adjustment module 301, and the second output end is connected to the control end of the second adjustment module 3012 in the 4 th group adjustment module 301.

Note that, in this example, the order of the first selection modules 201a in the 1 st selection group refers to the order of the first selection modules 201a in the 1 st selection group from left to right in fig. 6, that is, the 1 st first selection module 201a refers to the 1 st first selection module 201a from left to right, and the 2 nd first selection module 201a refers to the 2 nd first selection module 201a from left to right. Likewise, the order of the second selection modules 201b in the 1 st selection group in this example refers to the order of the second selection modules 201b in the 1 st selection group from left to right in fig. 6, that is, the 1 st second selection module 201b refers to the 1 st second selection module 201b from left to right, and the 2 nd second selection module 201b refers to the 2 nd second selection module 201b from left to right.

The 2 nd stage selection group includes 2 selection modules 201 alternately arranged as a first selection module 201a and a second selection module 201b. The first output terminal of the first selection module 201a in the level 2 selection group is connected to the input terminal of the 1 st first selection module 201a in the level 1 selection group, and the second output terminal is connected to the input terminal of the 1 st second selection module 201b in the level 1 selection group. The first output terminal of the second selection module 201b in the level 2 selection group is connected to the input terminal of the 2 nd first selection module 201a in the level 1 selection group, and the second output terminal is connected to the input terminal of the 2 nd second selection module 201b in the level 1 selection group.

The 3 rd level selection group comprises 1 selection module 201, a first output end of the selection module 201 of the 3 rd level selection group is connected with an input end of a first selection module 201a in the 2 nd level selection group, and a second output end of the selection module 201 of the 3 rd level selection group is connected with an input end of a second selection module 201b in the 2 nd level selection group.

The input terminal of the selection module 201 of the 3 rd level selection group is connected to the other terminal of the first switch module 10.

As a possible implementation manner, the selecting module 201 of the x-th stage selecting group is configured to output, when the first switching module is turned on, a trigger signal through the first output terminal at a first time of each preset period corresponding to the x-th stage selecting group, and output, through the second output terminal, a trigger signal at a second time of each preset period of the x-th stage selecting group.

The s-th stage selection group selecting module 201 is configured to, when receiving the trigger signal output by the s+1th stage selection group, output the trigger signal through the first output terminal at a first time of receiving each preset target period of the trigger signal, and output the trigger signal through the second output terminal at a second time of receiving each preset target period of the trigger signal; wherein s is an integer greater than 1 and less than x; the preset target period is a preset period corresponding to a selection module of the s-th level selection group; the preset target period is smaller than the preset period corresponding to the selection module of the x-th level selection group.

In the embodiment of the present application, when the first switch module 10 is turned on, the power supply supplies power to the selection module 201 of the x-th stage selection group, and the selection module 201 of the x-th stage selection group is in an operating state. When the selection module 201 of the x-th stage selection group is in a working state, a trigger signal is output through the first output terminal at the first time of each preset period corresponding to the selection module 201 of the x-th stage selection group, and at this time, the input terminal of the corresponding first selection module 201a in the x-1-th stage selection group receives the trigger signal. When the selection module 201 of the x-th level selection group is in a working state, a trigger signal is output through the second output end at a second time of each preset period corresponding to the selection module 201 of the x-th level selection group, and at this time, the input end of the corresponding second selection module 201b in the x-1-th level selection group receives the trigger signal.

When the corresponding selection module 201 in the s-th level selection group receives the trigger signal output by the s+1th level selection group, the corresponding selection module 201 in the s-th level selection group is in a working state. The selection module 201 of the s-1 st stage selection group outputs the trigger signal through the first output terminal at the first time of each preset target period when the trigger signal is received, and at this time, the input terminal of the corresponding first selection module 201a in the s-1 st stage selection group receives the trigger signal. The selection module 201 of the s-1 st stage selection group outputs the trigger signal through the second output terminal at the second time of receiving each preset target period of the trigger signal, and at this time, the input terminal of the corresponding second selection module 201b in the s-1 st stage selection group receives the trigger signal. Wherein s is an integer greater than 1 and less than x; the preset target period is a preset period corresponding to the s-th stage selection group; the preset target period is smaller than the preset period corresponding to the x-th stage selection group.

When receiving the trigger signal output by the 2 nd stage selection group, the corresponding selection module 201 in the 1 st stage selection group is in a working state. The selection module 201 of the 1 st stage selection group outputs the trigger signal through the first output terminal at the first time of each preset target period when the trigger signal is received, and at this time, the control terminal of the corresponding first adjustment module 3011 in the second selection branch 30 receives the trigger signal. The first adjustment module 3011 outputs a first adjustment signal at a first adjustment time of each preset first adjustment period when a trigger signal is received, and does not output the first adjustment signal at a second adjustment time of each preset first adjustment period when the trigger signal is received; the second adjustment time of the first adjustment period is other time than the first adjustment time in the first adjustment period.

The selection module 201 of the 1 st stage selection group outputs the trigger signal through the second output terminal at the second time of receiving each preset target period of the trigger signal, and at this time, the control terminal of the corresponding second adjustment module 3012 in the second selection branch 30 receives the trigger signal. The second adjusting module outputs a second adjusting signal at a first adjusting time of each preset second adjusting period when receiving the trigger signal, and does not output the second adjusting signal at a second adjusting time of each preset second adjusting period when receiving the trigger signal; the second adjustment time of the second adjustment period is other time than the first adjustment time in the second adjustment period.

In some embodiments, to improve the test efficiency, the first time of the preset target period of the selection module 201 of the s+1st stage selection group is equal to the preset target period of the first selection module 201a of the corresponding s stage selection group, and the second time of the preset target period of the selection module 201 of the s+1st stage selection group is equal to the preset target period of the second selection module 201b of the corresponding s stage selection group.

In this way, the test circuit can test n groups of test directions of the test motor of the target device in sequence and circulate according to a preset target period.

As one possible implementation, the selection module 201 includes a time relay.

In the embodiment of the application, the time relay is an automatic switching device which realizes time delay control by utilizing an electromagnetic principle or a mechanical principle. When an input signal is added, the output circuit of the time relay can generate contact action after a prescribed time. For the selection module 201, when the time relay receives a signal at the input end, the time relay is electrically connected to the first output end at a first time input end of a target preset period, and is electrically connected to the second output end at a second time input end of the target preset period.

As one possible implementation, the first adjustment module 3011 and the second adjustment module 3012 include a time relay.

In the embodiment of the application, for the first adjustment module 3011, the time relay receives the first adjustment time of each preset first adjustment period of the trigger signal, and the electrical connection between the output end of the time relay and the first input end of the target test motor is conducted, namely the first adjustment signal is output; and at the second adjustment time of each preset first adjustment period when the trigger signal is received, the output end of the time relay is disconnected from the first input end of the target test motor, namely, the first adjustment signal is not output. For the second adjustment module 3012, when the time relay receives the first adjustment time of each preset second adjustment period of the trigger signal, the output end of the time relay is electrically connected with the second input end of the target test motor, namely the second adjustment signal is output; and when receiving the second adjustment time of each preset first adjustment period of the trigger signal, disconnecting the electrical connection between the output end of the time relay and the second input end of the target test motor, namely, not outputting the second adjustment signal.

As a possible implementation manner, the detection circuit further includes: at least one second switch 501.

At least one second switch is provided between the input of at least one selection module 201 in the 1 st stage selection group and the first output or the second output of the corresponding selection module 201 in the 2 nd stage selection group.

In the embodiment of the present application, in order to improve the flexibility of the test, whether the selection module 201 of the 1 st stage selection group can receive the trigger signal output by the 2 nd stage selection group can be controlled by turning on and off the second switch 501. When the second switch 501 is turned on, the corresponding selection module 201 in the 1 st stage selection group may receive the trigger signal output by the 2 nd stage selection group. When the second switch 501 is turned off, the corresponding selection module 201 in the 1 st stage selection group cannot receive the trigger signal output by the 2 nd stage selection group. As illustrated in fig. 7, assuming that n=4, one second switch 501 is provided between the first input terminal of the first selection module 201a of the 2 nd selection group and the input terminal of the 1 st first selection module 201a of the 1 st selection group, between the second input terminal of the first selection module 201a of the 2 nd selection group and the input terminal of the 1 st second selection module 201b of the 1 st selection group, between the first input terminal of the second selection module 201b of the 2 nd selection group and the input terminal of the 2 nd first selection module 201a of the 1 st selection group, and between the second input terminal of the second selection module 201b of the 2 nd selection group and the input terminal of the 2 nd second selection module 201b of the 1 st selection group. If the second switch 501 provided between the first input terminal of the first selection module 201a of the level 2 selection group and the input terminal of the 1 st first selection module 201a of the level 1 selection group is turned off, the 1 st first selection module 201a of the level 1 selection group cannot receive the trigger signal output by the first selection module 201a of the level 2 selection group.

For example, as shown in fig. 8, assuming that the target device is a power seat, the target device includes 4 test motors, each including a set of test directions. The 1 st test motor M1 is a motor for adjusting the height of the seat, the first target direction is the direction from the high position to the low position of the seat, and the second target direction is the direction from the low position to the high position of the seat; the 2 nd test motor M2 is a motor for adjusting the front and rear positions of the seat, the first target direction is the direction from front to rear of the seat, and the second target direction is the direction from rear to front of the seat; the 3 rd test motor M3 is a motor for adjusting the angle of the seat back, the first target direction is the forward tilting direction of the seat back, and the second target direction is the backward tilting direction of the seat back; the 4 th test motor is a motor for adjusting the angle of the seat headrest, the first target direction is the forward tilting direction of the seat headrest, and the second target direction is the backward tilting direction of the seat headrest. The target equipment comprises an MCU, and the MCU controls the position adjustment of the test motor. The first input end of the test motor is the first input end corresponding to the MCU, and the second input end of the test motor is the second input end corresponding to the MCU.

The test motor of the target device includes 4 sets of input terminals, and the detection circuit of n=4 in the present application can be used to detect the test motor of the target device. The first end of the power supply is a positive electrode of the power supply, and the second end of the power supply is a negative electrode of the power supply. The first switch module 10 is a switch S1. One end of the switch S1 is connected with the positive electrode of the power supply.

Each selection module 201 of the first selection branch 20 is a time relay. The selection module 201 of the 3 rd stage selection branch circuit is a time relay KT7, the input end of the time relay KT7 is connected with the other end of the switch S1, and the power supply end is connected with the power supply cathode.

The first selection module 201a of the 2 nd stage selection group is a time relay KT5, the second selection module 201b of the 2 nd stage selection branch is a time relay KT6, the input end of the time relay KT5 is connected with the first output end of the time relay KT7 of the 3 rd stage selection group, and the input end of the time relay KT6 is connected with the second output end of the time relay KT7 of the 3 rd stage selection group. And the power ends of the time relays KT5 and KT6 are connected with the power negative electrode.

The 1 st first selection module 201a of the 1 st stage selection group is a time relay KT1, the 1 st second selection module 201b of the 1 st stage selection branch is a time relay KT2, the input end of the time relay KT1 is connected with the first output end of the time relay KT5 of the 2 nd stage selection group, and the input end of the time relay KT2 is connected with the second output end of the time relay KT5 of the 2 nd stage selection group. The 2 nd first selection module 201a of the 1 st stage selection branch is a time relay KT3, the 1 st second selection module 201b of the 1 st stage selection branch is a time relay KT4, the input end of the time relay KT3 is connected with the first output end of the time relay KT6 of the 2 nd stage selection group, and the input end of the time relay KT4 is connected with the second output end of the time relay KT6 of the 2 nd stage selection group. And the power ends of the time relays KT1, KT2, KT3 and KT4 are connected with the power negative electrode.

Each first adjustment module 3011 of the second selection branch 30 is a time relay, and each second adjustment module 3012 is a time relay. The first adjustment module 3011 of the 1 st group of adjustment modules 301 of the second selection branch 30 is a time relay KT1-1, the second adjustment module 3012 of the 1 st group of adjustment modules 301 is a time relay KT1-2, the first adjustment module 3011 of the 2 nd group of adjustment modules 301 is a time relay KT2-1, the second adjustment module 3012 of the 2 nd group of adjustment modules 301 is a time relay KT2-2, the first adjustment module 3011 of the 3 rd group of adjustment modules 301 is a time relay KT3-1, the second adjustment module 3012 of the 3 rd group of adjustment modules 301 is a time relay KT3-2, the first adjustment module 3011 of the 4 th group of adjustment modules 301 is a time relay KT4-1, and the second adjustment module 3012 of the 4 th group of adjustment modules 301 is a time relay KT4-2. The control end of the time relay KT1-1 is connected with the first output end of the time relay KT1 of the 1 st stage selection group, the control end of the time relay KT1-2 is connected with the second output end of the time relay KT1 of the 1 st stage selection group, the output end of the time relay KT1-1 is connected with the first input end of the test motor M1, and the output end of the time relay KT1-2 is connected with the second input end of the test motor M1. The control end of the time relay KT2-1 is connected with the first output end of the time relay KT2 of the 1 st stage selection group, and the control end of the time relay KT2-2 is connected with the second output end of the time relay KT2 of the 1 st stage selection group. The output end of the time relay KT2-1 is connected with the first input end of the test motor M2, and the output end of the time relay KT2-2 is connected with the second input end of the test motor M2. The control end of the time relay KT3-1 is connected with the first output end of the time relay KT3 of the 1 st stage selection group, and the control end of the time relay KT3-2 is connected with the second output end of the time relay KT3 of the 1 st stage selection group. The output end of the time relay KT3-1 is connected with the first input end of the test motor M3, and the output end of the time relay KT3-2 is connected with the second input end of the test motor M3. The control end of the time relay KT4-1 is connected with the first output end of the time relay KT4 of the 1 st stage selection group, and the control end of the time relay KT4-2 is connected with the second output end of the time relay KT4 of the 1 st stage selection group. The output end of the time relay KT4-1 is connected with the first input end of the test motor M4, and the output end of the time relay KT4-2 is connected with the second input end of the test motor M4. The power ends of the time relays KT1-1, KT1-2, KT2-1, KT2-2, KT3-1, KT3-2, KT4-1 and KT4-2 are connected with the power negative electrode. In this example, when the MCU receives the low level signal, the corresponding test motor is controlled to perform position adjustment, so that the output end of each time relay in the second selection branch 30 is connected to the negative electrode of the power supply.

When the switch S1 is turned on, the time relay KT7 in the 3 rd-stage selection group is at the first time of each preset period corresponding to the time relay KT7, the input end of the time relay KT7 is electrically connected with the first output end, and the time relay KT5 of the 2 nd-stage selection group receives the trigger signal. When the time relay KT5 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT5, the input end of the time relay KT5 is connected with the first output end, and the time relay KT1 in the 1 st stage selection group receives the trigger signal. When the time relay KT1 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT1, the input end of the time relay KT1 is electrically connected with the first output end, and the time relay KT1-1 of the second selection branch 30 receives the trigger signal. When the time relay KT1-1 receives the trigger signal, the output end of the time relay KT1-1 is disconnected from the first input end of the test motor M1 at the second adjustment time of each first adjustment period corresponding to the time relay KT1-1, and the test motor M1 does not perform position adjustment. At the first adjustment time of each first adjustment period corresponding to the time relay KT1-1, the output end of the time relay KT1-1 is conducted with the first input end of the test motor M1, and the test motor M1 performs position adjustment in the direction from the high position to the low position of the seat. When the time relay KT1 receives the trigger signal, the input end of the time relay KT1 is electrically connected with the second output end in the second time of each preset target period corresponding to the time relay KT1, and the time relay KT1-2 of the second selection branch 30 receives the trigger signal. When the time relay KT1-2 receives the trigger signal, the output end of the time relay KT1-2 is disconnected from the second input end of the test motor M1 at the second adjustment time of each second adjustment period corresponding to the time relay KT1-2, and the test motor M1 does not perform position adjustment. At the first adjustment time of each second adjustment period corresponding to the time relay KT1-2, the output end of the time relay KT1-2 is conducted with the second input end of the test motor M1, and the test motor M1 performs position adjustment in the direction from the low position to the high position of the seat.

When the time relay KT5 receives the trigger signal, at the second time of each preset target period corresponding to the time relay KT5, the input end of the time relay KT5 is electrically connected with the second output end, and the time relay KT2 in the 1 st stage selection group receives the trigger signal. When the time relay KT2 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT2, the input end of the time relay KT2 is electrically connected with the first output end, and the time relay KT2-1 of the second selection branch 30 receives the trigger signal. When the time relay KT2-1 receives the trigger signal, the output end of the time relay KT2-1 is disconnected from the first input end of the test motor M2 at the second adjustment time of each first adjustment period corresponding to the time relay KT2-1, and the test motor M1 does not perform position adjustment. At the first adjustment time of each first adjustment period corresponding to the time relay KT2-1, the output end of the time relay KT2-1 is conducted with the first input end of the test motor M2, and the test motor M2 performs position adjustment in the direction from front to rear of the seat. When the time relay KT2 receives the trigger signal, at a second time of each preset target period corresponding to the time relay KT2, the input end of the time relay KT2 is electrically connected with the second output end, and the time relay KT2-2 of the second selection branch 30 receives the trigger signal. When the time relay KT2-2 receives the trigger signal, the output end of the time relay KT2-2 is disconnected from the second input end of the test motor M2 at the second adjustment time of each second adjustment period corresponding to the time relay KT2-2, and the test motor M2 does not perform position adjustment. At the first adjustment time of each second adjustment period corresponding to the time relay KT2-2, the output end of the time relay KT2-2 is conducted with the second input end of the test motor M2, and the test motor M2 performs position adjustment in the direction from the rear to the front of the seat.

When the switch S1 is turned on, the time relay KT7 in the 3 rd-stage selection group is in second time of each preset period corresponding to the time relay KT7, the input end of the time relay KT7 is electrically connected with the second output end, and the time relay KT6 in the 2 nd-stage selection group receives the trigger signal. When the time relay KT6 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT6, the input end of the time relay KT6 is electrically connected with the first output end, and the time relay KT3 in the 1 st stage selection group receives the trigger signal. When the time relay KT3 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT3, the input end of the time relay KT3 is electrically connected with the first output end, and the time relay KT3-1 of the second selection branch 30 receives the trigger signal. When the time relay KT3-1 receives the trigger signal, the output end of the time relay KT3-1 is disconnected from the first input end of the test motor M3 at the second adjustment time of each first adjustment period corresponding to the time relay KT3-1, and the test motor M3 does not perform position adjustment. At the first adjustment time of each first adjustment period corresponding to the time relay KT3-1, the output end of the time relay KT3-1 is conducted with the first input end of the test motor M3, and the test motor M3 performs position adjustment in the direction that the seat leans forward from the seat back. When the time relay KT3 receives the trigger signal, at a second time of each preset target period corresponding to the time relay KT3, the input end of the time relay KT3 is electrically connected with the second output end, and the time relay KT3-2 of the second selection branch 30 receives the trigger signal. When the time relay KT3-2 receives the trigger signal, the output end of the time relay KT3-2 is disconnected from the second input end of the test motor M3 at the second adjustment time of each second adjustment period corresponding to the time relay KT3-2, and the test motor M3 does not perform position adjustment. At the first adjustment time of each second adjustment period corresponding to the time relay KT3-2, the output end of the time relay KT3-2 is conducted with the second input end of the test motor M3, and the test motor M3 performs position adjustment in the direction of leaning back of the seat.

When the time relay KT6 receives the trigger signal, at the second time of each preset target period corresponding to the time relay KT6, the input end of the time relay KT6 is electrically connected with the second output end, and the time relay KT4 in the 1 st stage selection group receives the trigger signal. When the time relay KT4 receives the trigger signal, at the first time of each preset target period corresponding to the time relay KT4, the input end of the time relay KT4 is electrically connected with the first output end, and the time relay KT4-1 of the second selection branch 30 receives the trigger signal. When the time relay KT4-1 receives the trigger signal, the output end of the time relay KT4-1 is disconnected from the first input end of the test motor M4 at the second adjustment time of each first adjustment period corresponding to the time relay KT4-1, and the test motor M1 does not perform position adjustment. At the first adjustment time of each first adjustment period corresponding to the time relay KT4-1, the output end of the time relay KT4-1 is conducted with the first input end of the test motor M4, and the test motor M4 performs position adjustment in the forward tilting direction of the seat headrest. When the time relay KT4 receives the trigger signal, at a second time of each preset target period corresponding to the time relay KT4, the input end of the time relay KT4 is electrically connected with the second output end, and the time relay KT4-2 of the second selection branch 30 receives the trigger signal. When the time relay KT4-2 receives the trigger signal, the output end of the time relay KT4-2 is disconnected from the second input end of the test motor M4 at the second adjustment time of each second adjustment period corresponding to the time relay KT4-2, and the test motor M4 does not perform position adjustment. At the first adjustment time of each second adjustment period corresponding to the time relay KT4-2, the output end of the time relay KT4-2 is conducted with the second input end of the test motor M4, and the test motor M4 performs position adjustment in the seat headrest backward direction.

Corresponding to the embodiment, the application also provides test equipment which comprises the detection circuit.

The same or similar parts between the various embodiments in this specification are referred to each other. In particular, for the device embodiments, since they are substantially similar to the circuit embodiments, the description is relatively simple, as far as reference is made to the description in the method embodiments.

Claims

1. A detection circuit, comprising:

2. The circuit of claim 1, wherein each of the n sets of outputs comprises a first output and a second output;

3. The circuit of claim 2, wherein the second selection branch comprises n sets of adjustment modules;

4. A circuit according to claim 3, wherein each set of adjustment modules comprises a first adjustment module and a second adjustment module;

5. The circuit of claim 4, wherein the first selection branch comprises a selection module when the value of n is 1;

6. The circuit of claim 4, wherein when the value of n is greater than 1, the first selection branch comprises x selection groups, and the power terminals of the selection modules included in each selection group are each used to connect to the second terminal of the power supply; wherein x has the value ofThe i-th level selection group includes +.>A selection module i is an integer greater than 0 and not greater than x;

7. The circuit of claim 6, wherein the circuit further comprises a logic circuit,

the selection module of the x-th stage selection group is used for outputting a trigger signal through a first output end at the first time of each preset period corresponding to the x-th stage selection group and outputting a trigger signal through a second output end at the second time of each preset period of the x-th stage selection group when the first switch module is turned on;

8. The circuit of any of claims 5-7, wherein the selection module comprises a time relay.

9. The circuit of any of claims 3-8, wherein the first and second adjustment modules comprise time relays.

10. The circuit of claim 6 or 7, further comprising: at least one second switch;

11. A detection apparatus comprising the detection circuit of any one of claims 1-10.