Comprehensive testing device for cabin door tooling mechanism controller
By designing the integrated test device of the hatch work mechanism controller, the existing test process is complicated and inefficient, and a high-integrated test solution is realized, which significantly reduces the difficulty and time of testing and improves the efficiency of development and testing. .
Patent Information
- Application Number
- CN202411679159.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-02-18
AI Technical Summary
In the process of developing and producing hatch work mechanism controllers, the testing process is cumbersome and requires a large number of manual operations and a variety of test instruments, resulting in a long test time and large workload, which limits the efficiency of development and testing.
A comprehensive testing device for hatch door work mechanism controller is designed, which includes testing equipment and simulation equipment. The test equipment is communicated with the hatch tooling mechanism controller through the test cable, providing DC power supply, on-off control, current, voltage acquisition, analog signal acquisition and OC door command output, and completing the acquisition, processing and display of test data. The simulation equipment is used to simulate the functions of the motor, load, position detection, thermistor and heating plate of the hatch tooling mechanism.
Improve the integration of the test device, reduce the difficulty of executing test items, reduce the requirements for operator skills, cover a variety of test scenarios, enhance the testing capability of the hatch work mechanism controller, and avoid the test environment The error caused by differences saves operator time and optimizes the efficiency of development and testing.
Smart Images
Figure CN119472612A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electronic product testing devices, and in particular to a comprehensive testing device for a hatch tooling mechanism controller. Background Art
[0002] The door fixture mechanism controller is the core component of the door fixture mechanism, responsible for the precise control and monitoring of the door fixture mechanism's DC brushless motor and its load, switch sensor, thermistor, heater and other functions.
[0003] In the process of developing and producing the door fixture mechanism controller, manual testing and debugging are usually performed manually. In the process of research and development, the requirements of the door fixture mechanism controller are first determined, and then the test items, i.e., test cases, are determined based on the requirements; in the production process, the functions of the door fixture mechanism controller have been determined, and the test items are determined based on the actual functions. The test items are generally determined by the test engineer, and then the test items are executed by the tester. Generally, the operator is required to build different test environments for testing according to different test items, and a large number of test instruments, such as oscilloscopes and multimeters, are required. This requires high technical quality of the operator, and cannot avoid the problems of long testing time and heavy workload. The complicated test items restrict the progress of the development and production of the door fixture mechanism controller, and limit the efficiency of the development and testing of the door fixture mechanism controller. Summary of the invention
[0004] The technical problem that the present application aims to solve is how to improve the integration of the test device to reduce the difficulty of executing the test items.
[0005] In order to solve the above technical problems, the present application provides a comprehensive test device for a hatch tooling mechanism controller, including: The test equipment is connected to the door fixture mechanism controller through a test cable, and can provide DC power supply to the door fixture mechanism controller, and can perform on-off control of the DC power supply and collect the current and voltage of the DC power supply, and can also collect analog signals and output OC door instructions, and can complete the collection, processing and display of test data; The simulation device is used to simulate the simulation operation between the door fixture mechanism controller and other components of the simulated door fixture mechanism. The simulation operation includes simulating the motor and motor load of the door fixture mechanism, simulating the position detection of the door fixture mechanism, and simulating the function of the thermistor and heating plate of the door fixture mechanism.
[0006] Preferably, the testing device comprises: The control module controls the signal conditioning module to perform test operations and collect, process and display test data; A DC power supply provides DC power to the door tooling mechanism controller; The signal conditioning module is communicatively connected to the hatch tooling mechanism controller via a test cable, and is capable of performing test operations and transmitting test data generated by the test operations to the control module. The test operations include on-off control of the DC power supply, collection of the current and voltage of the DC power supply, collection of analog signals, and output of OC gate instructions through software.
[0007] Preferably, the signal conditioning module comprises a signal conditioning box, and the DC power supply and the signal conditioning module are fixedly arranged inside the signal conditioning box; The signal conditioning box includes a front panel and a rear panel. The front panel is provided with a plurality of test points for connecting external test equipment, an independent switch for controlling the physical on and off of a DC power supply, and a 220V main power switch. The rear panel is provided with input and output sockets, and the input and output sockets include an aviation plug interface for connecting to a door tooling mechanism controller, an RS-422 serial interface for connecting to a door tooling mechanism controller, an RJ-45 interface for connecting to a control module, a 220V main power socket for AC power, and a grounding terminal.
[0008] Preferably, the signal conditioning module further includes a digital acquisition card, which is used to collect, process and convert signals from the door tooling mechanism controller, wherein the signals include analog signals and digital signals.
[0009] Preferably, the simulation device comprises: Brushless DC motor, used for motor drive and motor control of simulated hatch tooling mechanism; A hysteresis brake, fixedly connected to the brushless DC motor, is used to simulate the motor load of the hatch tooling mechanism; Torque sensor, used to measure the torque of brushless DC motor; Toggle switch to simulate the position sensor of the hatch tooling mechanism; Digital potentiometer chip, used to simulate thermistor of hatch tooling mechanism; Power resistor, used to simulate the heating plate of the hatch tooling mechanism.
[0010] Preferably, the simulation device also includes a bracket and two elastic couplings, the DC brushless motor, the torque sensor and the hysteresis brake are coaxially arranged, the DC brushless motor, the torque sensor and the hysteresis brake are respectively fixedly connected to the bracket, the DC brushless motor and the torque sensor are fixedly connected through an elastic coupling, and the torque sensor and the hysteresis brake are fixedly connected through another elastic coupling.
[0011] Preferably, the analog device further comprises a comparison module for indicating the voltage across the power resistor, the comparison module comprises a comparison chip and an LED lamp, the comparison chip is connected in parallel with the power resistor, and the LED lamp is connected in series with the comparison chip.
[0012] One or more technical solutions provided in this application have at least the following technical effects or advantages: First, the test equipment integrates DC power supply, on-off control, current and voltage acquisition, analog signal acquisition, OC door command output, and test data processing and display functions, which greatly improves the integration of the comprehensive test device of the door fixture mechanism controller, reduces the difficulty of executing test items, and thus reduces the requirements for operator skills; secondly, through the simulation equipment, the functions of the motor and its load, position detection, thermistor and heating plate of the door fixture mechanism can be simulated, so that the comprehensive test device of the door fixture mechanism controller can cover a variety of test scenarios and enhance the testing capability of the door fixture mechanism controller; finally, the combination of the test equipment and the simulation equipment further improves the integration of the test device, so that multiple test items can be implemented without setting up multiple test environments, which not only reduces the operating threshold, but also ensures the consistency of the test data, avoids errors caused by differences between test environments, and at the same time, the digital acquisition of test data is conducive to subsequent analysis and display of test data, saving the operator's time. In summary, the present application can optimize the efficiency of the development and testing of the door fixture mechanism controller. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only 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.
[0014] Figure 1 It is a schematic diagram of the structure of the comprehensive test device for the hatch tooling mechanism controller provided in an embodiment of the present application; Figure 2 It is a schematic diagram of the on-off control process of the DC power supply provided in the embodiment of the present application; Figure 3 It is a schematic diagram of the basic principle of on-off control of a DC power supply provided in an embodiment of the present application; Figure 4 It is a schematic diagram of the DC power supply voltage signal acquisition process provided in an embodiment of the present application; Figure 5 It is a schematic diagram of the collection process of analog signals provided in the embodiment of the present application; Figure 6It is a schematic diagram of the principle of the power resistor working indication circuit provided in the embodiment of the present application. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.
[0016] The comprehensive test device for the door tooling mechanism controller includes: The test equipment is connected to the door fixture mechanism controller through a test cable, and can provide DC power supply to the door fixture mechanism controller, and can perform on-off control of the DC power supply and collect the current and voltage of the DC power supply, and can also collect analog signals and output OC door instructions, and can complete the collection, processing and display of test data; The simulation device is used to simulate the simulation operation between the door fixture mechanism controller and other components of the simulated door fixture mechanism. The simulation operation includes simulating the motor and motor load of the door fixture mechanism, simulating the position detection of the door fixture mechanism, and simulating the function of the thermistor and heating plate of the door fixture mechanism.
[0017] For details, please refer to Figure 1 , the test equipment comprises: A control module controls the signal conditioning module to perform test operations and collect, process and display test data. In this embodiment, the control module is a computer installed with a host computer control software, which can control the test process and record and process test data; A DC power supply provides DC power to the door tooling mechanism controller; The signal conditioning module is communicatively connected to the hatch tooling mechanism controller via a test cable, and is capable of performing test operations and transmitting test data generated by the test operations to the control module. The test operations include on-off control of the DC power supply, collection of the current and voltage of the DC power supply, collection of analog signals, and output of OC gate instructions through software.
[0018] Among them, the on-off control of the DC power supply is carried out through software. Specifically, the on-off of the power supply is controlled by the host computer software for the second time on the basis of the independent switch. The user can control the on-off of the output of the DC power supply through the host computer software. At the same time, the host computer software can automatically cut off the power supply when the DC power supply is detected to be overloaded, so as to protect the door tooling mechanism controller under test; the digital channel of the data acquisition card is used here to control the control end of the relay driver chip, and then control the relay to realize the switching between the open and closed states of the switch, thereby realizing the on-off control of the DC power supply. The whole control process is as follows Figure 2 As shown; the basic control principle of the DC power supply on-off control circuit is as follows Figure 3 As shown, in order to ensure that the hatch tooling mechanism controller and the DC power supply share a common ground, the relay only controls the positive end of the DC power supply, and the return line of the DC power supply is not controlled to be on and off, and the return line of the DC power supply will always remain in the on state. Among them, the acquisition of the DC power supply voltage signal, specifically, because the measurement threshold of the data acquisition card is ±10V, and the DC power supply voltage should normally be 100V, and the maximum can be adjusted to 121V, the DC power supply voltage signal needs to be converted in the signal conditioning module and then collected by the data acquisition card. The acquisition process of the DC power supply voltage signal is as follows: Figure 4 As shown, for the DC power supply voltage signal, it is necessary to divide the voltage through resistance so that it meets the measurement threshold of ±10V, and at the same time, through impedance conversion, it is made to be in a high-resistance state for the input port and in a low-resistance state for the data acquisition card acquisition port to meet the requirements of high-precision acquisition. Among them, the acquisition of the DC power supply current signal, specifically, because the data acquisition card can only collect voltage signals, the acquisition of the DC power supply current signal is converted using a Hall current sensor. According to the Hall effect principle, the Hall current sensor can non-contactly convert the passing current signal into a voltage signal, and the current signal and the voltage signal are linearly proportional. The DC power supply line is passed through the hole in the middle of the Hall current sensor, and the Hall current sensor can output a voltage value that is proportional to the current in the DC power supply line. After that, the voltage is amplified by the operational amplifier circuit and connected to the analog acquisition channel of the data acquisition card. The upper computer software can read the voltage value, and then the actual current size can be obtained through parameter conversion. Among them, the process of analog signal acquisition is as follows Figure 5 As shown, in this embodiment, 2 analog telemetry signals need to be measured, and 15 analog acquisition interfaces are reserved. These signals are 0~5V analog voltage signals, which do not exceed the ±10V range threshold of the data acquisition card. Therefore, they are directly connected to the data acquisition card, and the upper computer software can be used to read the voltage value, and finally the voltage value is converted into the actual current value. Among them, the output of the OC gate instruction is specifically implemented using an integrated OC gate circuit chip.
[0019] For details, please refer to Figure 1 The signal conditioning module includes a signal conditioning box, and the DC power supply and the signal conditioning module are fixedly arranged inside the signal conditioning box, that is, the DC power supply and the signal conditioning module are integrated into the signal conditioning box, which has high integration and is easy to carry; The signal conditioning box includes a front panel and a rear panel. The front panel is provided with several test points for connecting external test equipment, an independent switch for controlling the physical on and off of the DC power supply, and a 220V main power switch. The independent switch is a manual hardware switch. The external test equipment does not belong to the comprehensive test device for the cabin door fixture mechanism controller, and is only used to describe the function of the test point. The test point provides an interface for external external test equipment. The external test equipment can be a measuring device such as an oscilloscope and a multimeter. The test point includes an analog quantity acquisition test point and an OC gate instruction output test point, etc. The use of the test point provides another way to collect signals, which is convenient for debugging and verification in the test; the rear panel is provided with input and output sockets, and the input and output sockets include an aviation plug interface for connecting to the cabin door fixture mechanism controller, an RS-422 serial interface for connecting to the cabin door fixture mechanism controller, an RJ-45 interface for connecting to the control module, a 220V main power socket for the mains, and a grounding terminal.
[0020] Among them, the RS-422 serial interface requires a signal conditioning module to convert it into a single-ended level signal before connecting to the digital acquisition card. Therefore, two low-power conversion chips are used. The low-power conversion chip can complete the conversion between the RS-422 standard level and the TTL standard level. The TTL standard level is a single-ended level signal; the signal conditioning module completes the level conversion of the RS-422 serial interface receiving and sending circuits through two low-power conversion chips, thereby realizing the RS-422 asynchronous serial communication function with the product under test.
[0021] Specifically, the signal conditioning module also includes a digital acquisition card, which is used to collect, process and convert signals from the door fixture mechanism controller, and the signals include analog signals and digital signals. Specifically, the data acquisition card is responsible for collecting the power supply voltage and current, analog telemetry signals of the comprehensive test device of the door fixture mechanism controller, and converting these analog signals into digital signals for processing by the control module. At the same time, it can control the relay to realize the control of power on and off, and output OC door instructions. The data acquisition card plays the role of signal conditioning, acquisition and control in the test equipment, ensuring the automation of the test process and the accuracy of the data. The digital acquisition card can also be used as a separate module or integrated into the control device.
[0022] Specifically, the simulation device includes: Brushless DC motor, used for motor drive and motor control of simulated hatch tooling mechanism; A hysteresis brake, fixedly connected to the brushless DC motor, is used to simulate the motor load of the hatch tooling mechanism; Torque sensor, used to measure the torque of brushless DC motor; Toggle switch to simulate the position sensor of the hatch tooling mechanism; Among them, by simulating the position sensor through the toggle switch, the locking and unlocking status of the door tooling mechanism can be simulated and detected. Specifically, by collecting the analog signal through the test equipment, the on-off state of the toggle switch can be monitored, that is, the mechanical position state can be converted into an electrical signal, and then real-time monitoring and data processing can be performed through the host computer software to verify the accuracy and reliability of the response of the door tooling mechanism controller to the change of the mechanism position.
[0023] A digital potentiometer chip is used to simulate the thermistor of the hatch tooling mechanism. The digital potentiometer chip selected in this embodiment meets the requirements of an adjustable resistance range of 0 to 1 MΩ and an adjustment accuracy of ±0.1 kΩ; The power resistor is used to simulate the heating plate of the hatch tooling mechanism. The resistance of the power resistor is required to be 85Ω±3%, and the maximum power is not less than 8W. In this embodiment, a precision power resistor with a resistance of 85Ω and a maximum power of 50W is selected, and a fin-type shape is adopted to increase the passive heat dissipation efficiency.
[0024] Specifically, the simulation device also includes a bracket and two elastic couplings. The DC brushless motor, the torque sensor and the hysteresis brake are coaxially arranged. The DC brushless motor, the torque sensor and the hysteresis brake are respectively fixedly connected to the bracket. The DC brushless motor and the torque sensor are fixedly connected through an elastic coupling, and the torque sensor and the hysteresis brake are fixedly connected through another elastic coupling.
[0025] For details, please refer to Figure 6 The analog device further includes a comparison module for indicating the voltage across the power resistor, the comparison module includes a comparison chip and an LED light, the comparison chip is connected in parallel with the power resistor, and the LED light is connected in series with the comparison chip. The comparison module can judge the voltage difference across the power resistor. If the voltage difference exceeds a threshold, the LED light turns on, indicating that the power resistor is powered on, that is, it is in a working state; if the voltage difference is lower than the threshold, the LED light turns off, indicating that the power resistor is not powered on, that is, it is not in a working state.
[0026] The basic working process of the comprehensive test device for the hatch tooling mechanism controller is as follows: First, the host computer software in the computer generates the corresponding control command and inputs it to the signal conditioning module through the network cable; secondly, the signal conditioning module controls the DC power supply to power on, and the DC power supply outputs DC power to the hatch tooling mechanism controller. After the hatch tooling mechanism controller is powered on, it gives a corresponding feedback signal, and then sends the feedback signal back to the signal conditioning module; finally, the data is transmitted to the computer through the network cable and displayed on the interface of the host computer software. At the same time, the host computer software can also control the signal conditioning module to output a specific OC door instruction. After receiving the OC door instruction, the hatch tooling mechanism controller controls the simulation device to perform the corresponding action and feeds back the corresponding signal to the computer, which is finally displayed on the interface of the host computer software.
[0027] It should also be noted that in this specification, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
Claims
1. A comprehensive test device for the door tooling mechanism controller, characterized in that: include: The test equipment is connected to the door fixture mechanism controller through a test cable, and can provide DC power supply to the door fixture mechanism controller, and can perform on-off control of the DC power supply and collect the current and voltage of the DC power supply, and can also collect analog signals and output OC door instructions, and can complete the collection, processing and display of test data; The simulation equipment is used to simulate the coordinated operation of the door fixture mechanism controller and the door fixture mechanism, the coordinated operation includes simulating the motor and motor load of the door fixture mechanism, simulating the position detection of the door fixture mechanism, and simulating the functions of the thermistor and heating plate of the door fixture mechanism.
2. The comprehensive test device for the door tooling mechanism controller according to claim 1 is characterized in that: The test equipment includes: The control module controls the signal conditioning module to perform test operations and collect, process and display test data; A DC power supply provides DC power to the door tooling mechanism controller; The signal conditioning module is communicatively connected to the hatch tooling mechanism controller via a test cable, and is capable of performing test operations and transmitting test data generated by the test operations to the control module. The test operations include on-off control of the DC power supply, collection of the current and voltage of the DC power supply, collection of analog signals, and output of OC gate instructions through software.
3. The comprehensive test device for the door tooling mechanism controller according to claim 2 is characterized in that: The signal conditioning module comprises a signal conditioning box, and the DC power supply and the signal conditioning module are fixedly arranged inside the signal conditioning box; The signal conditioning box includes a front panel and a rear panel. The front panel is provided with a plurality of test points for connecting external test equipment, an independent switch for controlling the physical on and off of a DC power supply, and a 220V main power switch. The rear panel is provided with input and output sockets, and the input and output sockets include an aviation plug interface for connecting to a door tooling mechanism controller, an RS-422 serial interface for connecting to a door tooling mechanism controller, an RJ-45 interface for connecting to a control module, a 220V main power socket for AC power, and a grounding terminal.
4. The comprehensive test device for the door tooling mechanism controller according to claim 2 is characterized in that: The signal conditioning module also includes a digital acquisition card, which is used to collect, process and convert signals from the hatch tooling mechanism controller, and the signals include analog signals and digital signals.
5. The comprehensive test device for the hatch tooling mechanism controller according to claim 1 is characterized in that: The simulation device comprises: Brushless DC motor, used for motor drive and motor control of simulated hatch tooling mechanism; A hysteresis brake, fixedly connected to the brushless DC motor, is used to simulate the motor load of the hatch tooling mechanism; Torque sensor, used to measure the torque of brushless DC motor; Toggle switch to simulate the position sensor of the hatch tooling mechanism; Digital potentiometer chip, used to simulate thermistor of hatch tooling mechanism; Power resistor, used to simulate the heating plate of the hatch tooling mechanism.
6. The comprehensive test device for the hatch tooling mechanism controller according to claim 5 is characterized in that: The simulation device also includes a bracket and two elastic couplings. The DC brushless motor, the torque sensor and the hysteresis brake are coaxially arranged. The DC brushless motor, the torque sensor and the hysteresis brake are respectively fixedly connected to the bracket. The DC brushless motor and the torque sensor are fixedly connected through an elastic coupling, and the torque sensor and the hysteresis brake are fixedly connected through another elastic coupling.
7. The comprehensive test device for the hatch tooling mechanism controller according to claim 5 is characterized in that: The analog device further comprises a comparison module for indicating the voltage across the power resistor, wherein the comparison module comprises a comparison chip and an LED lamp, wherein the comparison chip is connected in parallel with the power resistor, and the LED lamp is connected in series with the comparison chip.