Signal simulation equipment and test system

Abstract

The utility model provides signal simulation equipment and a test system, and relates to the technical field of electrical equipment test. The signal simulation equipment comprises a box body, a connecting piece and a testing device, a cavity is defined by the box body. The connecting piece is fixed on the box body and is used for connecting the testing device and a controller to be tested; the testing device is arranged in the cavity, the testing device is provided with a plurality of slots, each slot is used for inserting one type of signal simulation card, different types of signal simulation cards are used for outputting different types of electric signals, the testing device is used for sending the electric signals to the controller through the connecting piece, and the different types of electric signals are used for testing the controller. According to the signal simulation equipment, the problem that an existing signal simulator is inconvenient to carry is solved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment testing, and in particular to a signal simulation device and a testing system. Background Art

[0002] In the development process of automotive electronic control units (ECUs), rapid control prototype (RCP) is widely used to simulate various types of controllers such as engine controllers, transmission controllers, body controllers, and driver assistance controllers. Testing RCP with a signal simulator can help developers verify and debug RCP in advance when the actual hardware environment is not yet perfect, so as to quickly verify new control ideas and methods and shorten the development cycle of automotive ECUs.

[0003] In the prior art, when testing the RCP, it is necessary to set multiple functional components in the signal simulator to simulate multiple signals. These simulated multiple signals can control the RCP to respond, thereby realizing the test of the RCP.

[0004] However, the above signal simulator has the problem of being inconvenient to carry. Utility Model Content

[0005] The present application provides a signal simulation device and a test system to solve the problem that the existing signal simulator is inconvenient to carry.

[0006] A first aspect of an embodiment of the present application provides a signal simulation device, including: a box, a connector, and a test device;

[0007] The box body is enclosed to form a cavity;

[0008] The connecting piece is fixed on the box body and is used to connect the test device with the controller to be tested;

[0009] The testing device is arranged in the cavity, and is provided with a plurality of slots, each slot is used to plug in a type of signal simulation card, and different types of signal simulation cards are used to output different types of electrical signals. The testing device is used to send electrical signals to the controller through the connector, and different types of electrical signals are used to test the controller.

[0010] In a possible design, the test device is further provided with a display component, which includes a display screen and / or an acousto-optic display component;

[0011] The display screen is used to display the parameters of the electrical signal output by the test device to the controller, the parameters including the type of the electrical signal and the strength of the electrical signal;

[0012] The sound and light display component includes a buzzer and a first indicator light. The buzzer is used to indicate the strength of the electrical signal through sound, and the first indicator light is used to indicate the strength of the electrical signal through brightness.

[0013] In a possible design, the sound and light display assembly also includes a plurality of second indicator lights of different colors arranged in sequence, and the plurality of second indicator lights are used to indicate the strength of the signal through different colors and the number of lights on.

[0014] In a possible design, the test device is further provided with a switch assembly;

[0015] The switch assembly includes a plurality of switch subunits, each of which is provided with a plurality of gears, and each of which is connected to a switch for controlling the switch subunit to switch between the plurality of gears, and different gears are used to output level signals of different sizes.

[0016] In one possible design, the testing device also includes a plurality of third indicator lights. When the third indicator lights are on, it indicates that the controller has completed outputting control instructions corresponding to the third indicator lights, and the control instructions are used to control the vehicle.

[0017] In a possible design, the testing device also includes a banana hole assembly, which is connected to a power supply device and a monitoring device, the power supply device is used to provide power to the monitoring device through the banana hole assembly, the monitoring device is connected to the controller through a connector, and the monitoring device is used to monitor output instructions of the controller to analyze the output instructions of the controller.

[0018] In one possible design, the signal simulation device further includes: a secondary battery and a power interface, and the test device further includes a DC power supply button switch;

[0019] The power interface is arranged on the box body and is used to connect an external power source;

[0020] The DC power supply button switch is connected to the secondary battery and the power interface, and is used to control the secondary battery or the external power supply to supply power to the test device.

[0021] In a possible design, the signal simulation device further includes: a rolling component and a lifting component;

[0022] The rolling component and the lifting component are arranged on two different outer sides of the box body. When a force is applied to the lifting component, the rolling component drives the signal simulation device to move by rolling.

[0023] In a possible design, the box includes a box body and a cover body connected to the box body and capable of opening and closing. The box body is provided with a functional panel facing the cover body, and the testing device is provided on the functional panel.

[0024] The cover body is enclosed to form a storage cavity, the opening of the storage cavity faces the box body, and a plurality of storage bags are arranged in the storage cavity.

[0025] In a possible design, the pulling assembly includes a pull rod and a handle, and the pull rod is telescopically arranged on the box body.

[0026] A second aspect of the embodiment of the present application provides a test system, including: a controller, a monitoring device, and a signal simulation device of the first aspect;

[0027] The signal simulation device is used to test the controller, and the monitoring device is used to monitor the output instructions of the controller.

[0028] The embodiment of the present application provides a signal simulation device and a test system, the signal simulation device includes: a box, a connector and a test device; the box is enclosed to form a cavity; the connector is fixed on the box, and is used to connect the test device and the controller to be tested; the test device is arranged in the cavity, and the test device is provided with multiple slots, each slot is used to plug in a type of signal simulation card, and different types of signal simulation cards are used to output different types of electrical signals, and the test device is used to send electrical signals to the controller through the connector, and different types of electrical signals are used to test the controller. The following technical effects are achieved: multiple different types of signal simulation cards are plugged in through multiple slots, and according to different test requirements, different signal simulation cards in the slots are replaced in different test scenarios to achieve signal simulation in different test scenarios, so as to facilitate expansion and use, and one machine can be used for multiple purposes, which solves the problem that the traditional signal simulator is too large in size and weight, is not easy to move, can only be used in a laboratory environment, and is not easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] Figure 1 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 1 ;

[0032] Figure 2 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 2 ;

[0033] Figure 3 A schematic diagram of the display content provided by the embodiment of the present application;

[0034] Figure 4 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 3 ;

[0035] Figure 5 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 4 ;

[0036] Figure 6 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 5 ;

[0037] Figure 7 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 6 ;

[0038] Figure 8 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 7 .

[0039] Reference numerals:

[0040] 100-signal simulation device; 110-box; 120-connector; 130-test device; 131-slot;

[0041] 140-display component; 141-display screen; 142-sound and light display component; 1421-buzzer; 1422-first indicator light; 1423-second indicator light;

[0042] 150-switch assembly; 151-switch subunit; 160-third indicator light;

[0043] 170-Banana hole assembly;

[0044] 180-DC power supply button switch; 210-power interface;

[0045] 310- rolling assembly; 410- lifting assembly; 411- handle; 412- pull rod;

[0046] 510 - box body; 610 - cover body; 611 - storage bag. DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0048] In this application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c alone can represent: a, b, c, a and b, a and c, or a, b, and c, where a, b, and c can be single or multiple. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "up", "down", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0050] The terms "connected" and "connected" should be understood in a broad sense. For example, the "connected" or "connected" of a circuit structure can refer to not only physical connection, but also electrical connection or signal connection. For example, it can be directly connected, that is, physically connected, or indirectly connected through at least one intermediate element, as long as the circuit is connected, or it can be the internal connection of two elements; signal connection can refer to signal connection through a circuit or through a media medium, such as radio waves. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] It should be noted that the “at…” in the embodiments of the present application may be the instant when a certain situation occurs, or may be a period of time after the occurrence of a certain situation, and the embodiments of the present application do not specifically limit this.

[0052] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0053] In order to clearly understand the technical solution of this application, the solution of the prior art is first introduced in detail. In the development process of automotive electronic control systems, RCP is usually used to simulate various controllers, such as: an engine controller responsible for fuel injection to ensure efficient and clean operation of the engine; a transmission controller (Transmission Control Module, TCM) that controls the shift logic of the automatic transmission to ensure smooth vehicle shifting and optimize fuel economy; a body controller (Body Control Module, BCM) that controls the vehicle's non-power systems, such as electric windows, lights, wipers, central door locks and electric sunroofs; an assisted driving controller (Advanced Driver Assistance Systems, ADAS) that integrates multiple assisted driving functions, such as adaptive cruise control, lane keeping assist and automatic emergency braking, etc., to improve driving safety.

[0054] Testing RCP with a signal simulator can help developers verify and debug the functions and performance of RCP in advance without a complete physical system. By testing the input and output functions of RCP, new control ideas and control algorithms can be quickly verified, thereby shortening the R&D cycle of automotive ECUs, saving costs, and accelerating the time to market for automotive products.

[0055] However, traditional signal simulators usually require multiple functional components to simulate different types of analog signals, so that the entire signal simulator is too large and heavy, inconvenient to move, and is only suitable for use in laboratory environments, and has the problem of being inconvenient to carry.

[0056] Therefore, how to reduce the size, reduce the weight, and make it easy to carry while ensuring that the signal simulator has multiple signal simulation functions is a problem to be solved in the embodiments of the present application.

[0057] In order to solve the above problems, the inventor has designed a signal simulation device that is convenient to move and easy to carry. By using the signal simulation device to simulate a variety of signals, the RCP can be controlled to respond, thereby realizing the test of the RCP.

[0058] In order to facilitate understanding of the technical solution of the present application, the embodiments of the present application are introduced below in conjunction with the drawings in the specification.

[0059] Figure 1 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 1 ,like Figure 1 As shown, the signal simulation device 100 includes: a box 110, a connector 120 and a test device 130; the box 110 is enclosed to form a cavity; the connector 120 is fixed on the box 110, and is used to connect the test device 130 and the controller to be tested; the test device 130 is arranged in the cavity, and the test device 130 is provided with a plurality of slots 131, each slot 131 is used to plug a type of signal simulation card, and different types of signal simulation cards are used to output different types of electrical signals, and the test device 130 is used to send electrical signals to the controller through the connector 120, and different types of electrical signals are used to test the controller. The box 110 is the physical shell structure of the signal simulation device 100. The connector 120 may be any existing physical interface, such as a Bayonet Nut Connector (BNC), a Video Graphics Array connector (VGA), and a Universal Serial Bus (USB); it may also be any wiring, such as a twisted pair and a shielded cable; it may also include an adapter or a converter to bridge different interface types; in some cases, if the test conditions permit, it may also be a Bluetooth device. Furthermore, according to actual needs, a movable cover may be provided for the interface where the connector 120 is located to protect the connector 120.

[0060] The test device 130 includes a plurality of slots 131, each of which can be inserted with a signal simulation card of different functions, and the signal simulation card can be a board card in the prior art. Usually, each slot 131 can be used to insert a type of signal simulation card, and some types of signal simulation cards may need to occupy two or more slots, and the number of slots occupied by each signal simulation card is different. Different types of signal simulation cards can be used to generate different types of electrical signals, and the electrical signals include different signals such as continuous analog signals and discrete digital signals, such as voltage signals, current signals, pulse width modulation (PWM) signals, and electrical signals generated based on temperature differences when thermocouples are working. By inserting a plurality of different signal simulation cards in a plurality of slots, a plurality of different plug-in areas can be generated on the test device 130, such as voltage analog plug-in area, frequency PWM plug-in area, current frequency plug-in area, resistance and / or inductance plug-in area, thermocouple plug-in area, and current sensor plug-in area.

[0061] The controller in the embodiment of the present application can be a variety of controllers such as an engine controller, a transmission controller, a body controller, and an auxiliary driving controller simulated by a rapid prototype development controller (Rapid Control Prototype, RCP), or other controllers, and no specific restrictions are made here. The signal simulation device in the embodiment of the present application can also be applied to other types of controllers to implement testing of other different types of controllers.

[0062] The embodiment of the present application can be plugged with multiple different types of signal simulation cards through multiple slots. When in use, the corresponding signal simulation card can be plugged into the slot according to specific test requirements to generate the corresponding signal, and the simulated signal can be output to the corresponding connected controller through the connector, thereby realizing the simulation test of the controller. When in use, only one signal simulation card can be plugged in to generate a simulated signal to test the controller; or multiple different types of signal simulation cards can be plugged in at the same time according to test requirements to simultaneously generate multiple different types of simulated electrical signals, thereby realizing the test verification of the complex control ideas and control methods of the controller; or different signal simulation cards can be replaced in different test scenarios according to different test requirements to realize the simulation of the required signals for different test scenarios. Therefore, the signal simulation device in the embodiment of the present application is convenient for expansion and use, and can be used for multiple purposes. Compared with the traditional signal simulator, it can not only meet the output function of multiple signals, but also reduce the volume and weight, and is portable.

[0063] A signal simulation device provided in this embodiment includes: a box, a connector and a test device; the box is enclosed to form a cavity; the connector is fixed on the box and is used to connect the test device and the controller to be tested; the test device is arranged in the cavity, and the test device is provided with multiple slots, each slot is used to plug in a type of signal simulation card, different types of signal simulation cards are used to output different types of electrical signals, and the test device is used to send electrical signals to the controller through the connector, and different types of electrical signals are used to test the controller. The following technical effects are achieved: multiple different types of signal simulation cards are plugged in through multiple slots, and according to different test requirements, different signal simulation cards in the slots are replaced in different test scenarios to achieve signal simulation in different test scenarios, so as to facilitate expansion and use, and one machine can be used for multiple purposes, which solves the problem that traditional signal simulators are too large and heavy, not easy to move, can only be used in laboratory environments, and are not easy to carry.

[0064] The other components included in the testing device 130 in the signal simulation apparatus 100 are described in detail below.

[0065] Figure 2 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 2 ,like Figure 2 As shown, in this embodiment Figure 1 Based on the embodiment, the display component included in the test device 130 is described in detail. Figure 2 As shown, the test device 130 is also provided with a display component 140, which includes a display screen 141 and / or an acousto-optic display component 142; the display screen 141 is used to display the parameters of the electrical signal output from the test device 130 to the controller, and the parameters include the type of the electrical signal and the strength of the electrical signal. The test device 130 can output each type of signal from multiple channels to provide the controller with multiple signals of different strengths at the same time. Figure 3 A schematic diagram of the display screen display content provided in the embodiment of the present application, such as Figure 3 As shown, in the current state, the signal simulation device outputs four different types of signals to the controller, namely, frequency PWM signal, voltage signal, current signal and inductance signal. The frequency PWM signal occupies four channels for output, and the output from the first channel to the fourth channel is zero Hz, and the duty cycle is 50%; the voltage signal also occupies four channels for output, and the output voltage values ​​of the four channels from the first channel to the fourth channel are all 2500 millivolts (mV); the current signal occupies two channels for output, and the output current values ​​of the first channel and the second channel are both 10 milliamperes (mA); the inductance signal also occupies two channels for output, and the inductance output of the first channel is zero millihenry (mH), and the inductance output of the second channel is 5 millihenry (mH).

[0066] The sound and light display component 142 includes a buzzer 1421 and a first indicator light 1422. The buzzer 1421 is used to indicate the strength of the electrical signal through sound. Specifically, the buzzer can indicate the strength of the signal simulated by the test device 130 through the tone, and the tone is positively correlated with the strength of the signal. The higher the tone, the stronger the strength of the indicated signal; or indicate the strength of the simulated signal through the loudness, and the loudness is positively correlated with the strength of the signal. The louder the loudness, the stronger the strength of the indicated signal; and can also indicate the strength of the simulated signal through the speed of the rhythm, and the rhythm is positively correlated with the strength of the signal. The faster the rhythm, the stronger the strength of the indicated signal.

[0067] The first indicator light 1422 is used to indicate the strength of the signal simulated by the test device 130 through brightness. The brightness is positively correlated with the strength of the signal. The higher the brightness, the stronger the strength of the indicated signal.

[0068] The sound and light display assembly 142 also includes a plurality of second indicator lights 1423 of different colors arranged in sequence, and the plurality of second indicator lights 1423 are used to indicate the strength of the signal simulated by the test device 130 through different colors and the number of lights. The plurality of second indicator lights can be composed of a plurality of monochromatic light emitting diode (LED) indicator lights (such as red LED, green LED and blue LED), or a variable color temperature LED indicator light can be used to adjust the brightness ratio of each color LED to mix various colors from the blue at the bottom to the orange-red at the top. Specifically, when only the blue indicator light at the bottom is lit, the intensity of the indication signal is weak, and the number of lights is positively correlated with the intensity of the signal. When the number of lights gradually increases, even the orange-red indicator light at the top is also lit, the intensity of the indication signal is gradually increasing. In this way, the signal simulation device can intuitively display the strength of the simulated signal through the number of lights and color changes of the second indicator lights 1423.

[0069] The embodiment of the present application can not only intuitively display the strength of the signal simulated by the test device through a display screen, but also display the strength of the simulated signal in real time through a buzzer, a first indicator light, and a second indicator light. By setting a buzzer, a first indicator light, and a second indicator light, the signal simulation device of the embodiment of the present application has the effect of simultaneously displaying the signal strength with sound and light.

[0070] Figure 4 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 3 ,like Figure 4 As shown, in this embodiment Figure 2 Based on the embodiment, other components included in the testing device 130 are described in detail. Figure 4 As shown, the test device 130 is also provided with a switch assembly 150;

[0071] The switch assembly 150 includes multiple switch sub-units 151, each of which is provided with multiple gears, usually set to three gears, wherein the first gear is used to output a high-level signal, and a corresponding red indicator light is usually set, which, when it is lit, indicates that the output is a high-level signal; the second gear is used to output a low-level signal, and a corresponding green indicator light is usually set, which, when it is lit, indicates that the output is a low-level signal; the third gear is used to disconnect the output of the high-level signal or the low-level signal, and a corresponding yellow indicator light is usually set, which, when it is lit, indicates that no level signal is output. In each switch sub-unit 151, by setting three indicator lights of different colors, it can be intuitively displayed what level signal the signal simulation device outputs to the controller.

[0072] Each switch subunit 151 is connected to a switch for controlling the switch subunit 151 to switch between multiple gears. Here, a toggle switch is usually set to switch the corresponding gears, wherein different gears are used to output level signals of different sizes. The switch assembly 150 in the embodiment of the present application can also be designed in the form of a board card, and can also be replaced by other signal simulation cards.

[0073] The test device also includes a plurality of third indicator lights 160. When the third indicator lights 160 are on, it indicates that the controller has completed the output of the control instruction corresponding to the third indicator lights 160, and the control instruction is used to control the vehicle. Here, through the third indicator lights 160, the signal simulation device can intuitively display whether the corresponding connected controller has completed the output of the control instruction, that is, when the controller outputs the control instruction to the controlled object, the corresponding third indicator light 160 will be lit if it is detected that the controller outputs the current signal. The third indicator light 160 can be used to simulate some lights or relay-type loads corresponding to the controller, such as: the switches of lights, fog lights and wipers, etc.

[0074] The embodiment of the present application can realize the simulated level signal output to the controller by setting a switch component in the signal simulation device; by setting multiple third indicator lights to simulate various car lights and relay-type loads, the output function of the controller can be monitored.

[0075] Figure 5 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 4 ,like Figure 5 As shown, in this embodiment Figure 4 Based on the embodiment, other components further included in the testing device 130 are described in detail. Figure 5 As shown, the test device 130 also includes a banana hole component 170, which is connected to a power supply device and a monitoring device. The power supply device is used to provide electrical energy to the monitoring device through the banana hole component 170. The power supply device can be a built-in power supply in the signal simulation device, such as a battery, or other external power supply. The use of a banana hole component facilitates the rapid connection of two devices, and is also convenient for disconnecting the connection between the two devices, and can also provide reliable electrical contact. In addition, by connecting the banana hole component to a measuring device such as an oscilloscope or a multimeter, the characteristics of the output analog signal can be monitored in real time, such as the waveform, frequency and amplitude of the signal can be observed through an oscilloscope. The monitoring device is connected to the controller through a connector, and the monitoring device is used to monitor the output instructions of the controller to analyze the output instructions of the controller. In this embodiment, the monitoring device and the signal simulation device can constitute a system, but it does not belong to a fixed component in the signal simulator, and can be a replaceable plug-in.

[0076] Figure 6 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 5 ,like Figure 6 As shown, in this embodiment Figure 1 and Figure 5 Based on the embodiment, other components included in the signal simulation device 100 are described in detail. Figure 6 As shown, the signal simulation device 100 further includes: a secondary battery and a power interface 210, and the test device 130 further includes a DC power supply button switch 180. The secondary battery here is a rechargeable battery, which refers to a battery that can be recharged and used repeatedly, such as a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery, a lithium-ion battery, etc. In this embodiment, in order to meet the power supply requirements, a large-capacity lithium-ion battery can be used.

[0077] The power interface 210 is provided on the box body 110 and is used to connect to an external power source. Figure 6 In the embodiment, the power interface 210 is schematically provided on a side surface of the box body 110. In practical applications, the power interface 210 can be provided on any surface of the box body 110 according to practical conditions. Figure 6 The setting method in is for illustration only and is not a specific limitation. If necessary, a movable cover can be further provided for the power interface 210 to protect the interface. The DC power supply button switch 180 is connected to the secondary battery and the power interface 210, and is used to control the secondary battery or the external power supply to power the test device 130. In this embodiment, when the power interface 210 is connected to an external 220 volt (Volt, V) AC power, the test device 130 is powered by an external power supply, and at the same time, the external power supply can also charge the secondary battery. When the DC power supply button switch 180 is pressed, the test device 130 is powered by a secondary battery.

[0078] The signal simulation device of the embodiment of the present application has a built-in secondary battery, so it is convenient to be used in an outdoor environment without an external power supply.

[0079] Figure 7 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 6 ,like Figure 7 As shown, in this embodiment Figure 6 Based on the embodiment, other components further included in the signal simulation device 100 are described in detail. Figure 7 As shown, the signal simulation device 100 further includes: a rolling component 310 and a lifting component 410;

[0080] The rolling assembly 310 and the lifting assembly 410 are arranged on two different outer sides of the box body. When a force is applied to the lifting assembly 410, the rolling assembly 310 drives the signal simulation device 100 to move by rolling. The rolling assembly 310 in this embodiment can be any wheel used in a suitcase in the prior art, for example, a directional wheel that can only roll forward or backward, or a universal wheel (also called a rotating wheel that can rotate 360 ​​degrees freely).

[0081] The lifting assembly 410 includes a pull rod 412 and a handle 411. The pull rod 412 is retractably arranged on the box body 110, similar to the pull rod case in the prior art. When the signal simulation device 100 needs to be moved, the pull rod 412 is pulled out, a force is applied to it, and the signal simulation device is driven to move through the rolling assembly 310. The position of the signal simulation device 100 can also be moved by applying a force to the handle 411.

[0082] The signal simulation device of the embodiment of the present application adopts a trolley case structure and has a portable function, so it is easy to carry and move.

[0083] Figure 8 A schematic diagram of the structure of the signal simulation device provided in the embodiment of the present application Figure 7 ,like Figure 8 As shown, in this embodiment Figure 7 Based on the embodiment, the structure of the box 110 is described in detail. Figure 8 As shown, the box body 110 includes a box body 510 and a cover body 610 connected to the box body 510 and openable and closable. The box body 510 is provided with a functional panel facing the cover body 610 , and the testing device 130 is provided on the functional panel.

[0084] The cover 610 encloses a storage cavity, the opening of which faces the box body 510, and a plurality of storage bags 611 are arranged in the storage cavity. Figure 8 A total of five storage bags are schematically provided on the cover 610. In actual applications, the number, shape and specific position of the storage bags can be set according to the actual needs of storage. Figure 8 The setting method of the storage bag is for illustration only and is not a specific limitation. The specific material of the storage bag can be a cloth bag, a net bag or a hard box, etc. Any structure that can hold items can be used as a storage bag, and there is no specific limitation here. The storage bag can be used to place instructions, various tools, wiring harnesses and other items of signal simulation equipment. The storage bag can also be set with different colors to classify the stored items. Furthermore, the classification name of the items placed can also be marked on the storage bag, such as an instruction storage bag, a calibration tool storage bag and a wiring harness storage bag.

[0085] The signal simulation device of the embodiment of the present application has a plurality of storage bags provided on the cover body, so that the signal simulation device also has a certain storage function.

[0086] Furthermore, an embodiment of the present application also provides a test system, including: a controller, a monitoring device, and a signal simulation device in the above embodiment; the signal simulation device is used to test the controller, and the monitoring device is used to monitor the output instructions of the controller. The monitoring device can be a plug-in in the signal simulation system, or a third-party monitoring and analysis tool, which is used to specifically analyze the output instructions of the controller.

[0087] The signal simulation device and test system provided in the embodiments of the present application have the same beneficial effects, which will not be described in detail here.

[0088] The units or modules described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units or modules, that is, they may be located in one place, or they may be distributed over multiple units or modules. Some or all of the units or modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0089] In the several embodiments provided in the present application, it should be understood that the division of the above-mentioned units or modules is only a logical function division, and there may be other division methods in actual implementation. For example, the functional units in each embodiment of the present application can be integrated into one unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. For example, the functional modules in each embodiment of the present application can be integrated into one module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0090] Finally, it should be noted that the above embodiments are only specific implementation methods of the embodiments of the present application, which are used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. The protection scope of the embodiments of the present application is not limited thereto. Although the embodiments of the present application are described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed in the embodiments of the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application is limited only by the attached claims.

Claims

1. A signal simulation device, characterized in that: include: Box, connectors and test equipment; The box body is enclosed to form a cavity; The connecting piece is fixed on the box body and is used to connect the test device with the controller to be tested; The testing device is arranged in the cavity, and is provided with a plurality of slots, each of the slots is used to plug in a type of signal simulation card, and different types of signal simulation cards are used to output different types of electrical signals. The testing device is used to send the electrical signal to the controller through the connecting piece, and the different types of electrical signals are used to test the controller.

2. The signal simulation device according to claim 1, characterized in that: The testing device is also provided with a display component, which includes a display screen and / or an acousto-optic display component; The display screen is used to display parameters of the electrical signal output by the test device to the controller, wherein the parameters include the type of the electrical signal and the strength of the electrical signal; The sound and light display component includes a buzzer and a first indicator light. The buzzer is used to indicate the strength of the electrical signal through sound, and the first indicator light is used to indicate the strength of the electrical signal through brightness.

3. The signal simulation device according to claim 2, characterized in that: The sound and light display assembly also includes a plurality of second indicator lights of different colors arranged in sequence, and the plurality of second indicator lights are used to indicate the strength of the signal through the different colors and the number of lights on.

4. The signal simulation device according to claim 3, characterized in that: The testing device is also provided with a switch assembly; The switch assembly includes a plurality of switch subunits, each of which is provided with a plurality of gears, and each of which is connected to a switch for controlling the switch subunit to switch between the plurality of gears, and different gears are used to output level signals of different sizes.

5. The signal simulation device according to claim 4, characterized in that: The testing device also includes a plurality of third indicator lights. When the third indicator lights are on, it indicates that the controller has completed the output of control instructions corresponding to the third indicator lights, and the control instructions are used to control the vehicle.

6. The signal simulation device according to claim 5, characterized in that: The testing device also includes a banana hole assembly, which is connected to a power supply device and a monitoring device. The power supply device is used to provide electrical energy to the monitoring device through the banana hole assembly. The monitoring device is connected to the controller through the connector. The monitoring device is used to monitor the output instructions of the controller so as to analyze the output instructions of the controller.

7. The signal simulation device according to any one of claims 1 to 6, characterized in that: The signal simulation device further comprises: a secondary battery and a power supply interface, and the test device further comprises a DC power supply button switch; The power interface is arranged on the box body and is used to connect to an external power source; The DC power supply button switch is connected to the secondary battery and the power interface, and is used to control the secondary battery or the external power supply to supply power to the testing device.

8. The signal simulation device according to claim 7, characterized in that: The signal simulation device further comprises: a rolling component and a lifting component; The rolling component and the lifting component are arranged on two different outer sides of the box body. When a force is applied to the lifting component, the rolling component drives the signal simulation device to move by rolling.

9. The signal simulation device according to claim 8, characterized in that: The box body comprises a box body and a cover body connected to the box body and capable of opening and closing, the box body is provided with a functional panel facing the cover body, and the testing device is provided on the functional panel; The cover body is enclosed to form a storage cavity, the opening of the storage cavity faces the box body, and a plurality of storage bags are arranged in the storage cavity.

10. The signal simulation device according to claim 9, characterized in that: The lifting assembly comprises a pull rod and a handle, and the pull rod is telescopically arranged on the box body.

11. A testing system, characterized in that: include: A controller, a monitoring device and a signal simulation device as claimed in any one of claims 1 to 10; The signal simulation device is used to test the controller, and the monitoring device is used to monitor the output instructions of the controller.

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