Acquisition Drive Control Module Detection System and Method

Abstract

The present invention provides an automatic detection system and method for a collection drive control module, including: a test cable, a switching power supply, an analog circuit module, a data acquisition device, a CAN interface device, and a host computer. The analog circuit module: simulates a real fire extinguisher bottle and realizes the conversion between the empty bottle and full bottle states; the data acquisition device: converts the analog fire extinguisher reset information sent by the host computer into a digital signal and outputs it to the analog circuit module; the CAN interface device: receives the CAN data sent by the product under test and sends it to the host computer, or transmits the CAN data sent by the host computer to the product under test; the host computer: processes the received CAN data or outputs information to the data acquisition device and the CAN interface device, and displays the result after analysis and processing by the host computer module. The present invention meets the need for automatic detection and judgment of the collection drive control module, ensures the perfect function of the product, and enables users to have the ability to independently, quickly, and accurately detect the collection drive control module.

Description

Technical Field

[0001] The present invention relates to the field of weapon and equipment systems, and in particular, to a detection system and method for a collection drive control module. Background Art

[0002] As an important part of the vehicle fire extinguishing and explosion suppression system, the collection drive control module product mainly functions to collect fire alarm signals and the status of fire extinguishing bottles, and output explosion signals of the bottles.

[0003] Since the collection drive control module is an important component of the vehicle fire extinguishing and explosion suppression system, and currently the demand of each using unit is large, it is only limited to the manual detection and debugging method, which has a large workload, a high technical difficulty in judging faults, and a long time. It is inevitable to have mischecks and omissions, which directly affect the quality and reliability of product components.

[0004] In the Chinese patent document with the publication number of CN210302119U, an armored vehicle fire extinguisher simulator system for detecting fire extinguishing bottles, detecting the status of fire extinguishing pipelines, and feeding back the index parameters of fire extinguishing pipelines is disclosed. In the present utility model, the outlets of multiple fire extinguishing bottles are in one-to-one correspondence and communication with the inlets of multiple nozzles. The multiple nozzles are respectively fixed in the power cabin and the fuel cabin. Multiple wire-type sensors are respectively fixed in the power cabin and the fuel cabin. The output ends of the multiple wire-type sensors are all connected to the input end of the automatic fire extinguishing control box. The automatic fire extinguishing control box is bidirectionally connected to the simulator. The output end of the automatic fire extinguishing control box is connected to the input end of the speaker. The electric blasting tube is fixed at the outlet of the fire extinguishing bottle, and the input end of the electric blasting tube is connected to the output end of the simulator. Summary of the Invention

[0005] Aiming at the defects in the prior art, the purpose of the present invention is to provide a detection system and method for a collection drive control module.

[0006] According to an automatic detection system for a collection drive control module provided by the present invention, it includes: a test cable, a switching power supply, an analog circuit module, a data acquisition device, a CAN interface device, and a host computer, wherein:

[0007] The test cable: connects the product under test to the detector and provides a path for signal transmission;

[0008] The switching power supply: supplies power to the product under test and the detector;

[0009] The analog circuit module: simulates a real fire extinguishing bottle and realizes the conversion between the empty bottle state and the full bottle state;

[0010] The data acquisition device: converts the analog fire extinguishing bottle reset information sent by the host computer into a digital signal and outputs it to the analog circuit module;

[0011] CAN interface device: Receives the CAN data sent by the product under test and sends it to the host computer, or transmits the CAN data sent by the host computer to the product under test;

[0012] Host computer: Provides a running environment for the test software, analyzes and processes the received CAN data, or outputs information to the data acquisition device and CAN interface device, and displays the results after analysis and processing by the host computer module.

[0013] Preferably, the analog circuit module includes an analog fire extinguisher reset circuit, a reference voltage circuit, and an analog fire extinguisher circuit.

[0014] Preferably, the analog fire extinguisher reset circuit uses an open collector digital output method to isolate and amplify the digital signal generated by the data acquisition device, drive the reset relay, and control the reset of the analog fire extinguisher.

[0015] Preferably, the reference voltage circuit converts DC 24V to DC 5V to provide a reference voltage for the analog fire extinguisher circuit.

[0016] Preferably, the analog fire extinguisher circuit compares the burst bottle signal voltage output by the product under test with the reference voltage, controls the action of the relay, and realizes the conversion between full bottle and empty bottle.

[0017] Preferably, the data acquisition device uses NI USB-6001.

[0018] Preferably, the CAN interface device uses USBCAN-II.

[0019] Preferably, the input of the switching power supply is AC 220V, and the output is DC 24V / 14.5A.

[0020] A detection method for a collection drive control module provided by the present invention includes the following steps:

[0021] Power supply step: Turn on the switching power supply to achieve power supply;

[0022] Step of sending a manual burst bottle signal: Transmit the manual burst bottle signal sent by the host computer to the product under test through the CAN interface device, so that the product under test generates a burst bottle signal;

[0023] Analog fire extinguisher drive step: Compare the burst bottle signal voltage output by the product under test with the reference voltage, control the action of the relay, and realize the conversion from full bottle to empty bottle;

[0024] Step of receiving the fire extinguisher status: Receive the fire extinguisher status signal sent by the product under test through the CAN interface device;

[0025] Steps for simulating the reset of the fire extinguisher: Convert the information of simulating the reset of the fire extinguisher sent by the host computer into digital signals through a data acquisition device, isolate and amplify the signals through the circuit for simulating the reset of the fire extinguisher, drive the reset relay to act, control the reset of the simulated fire extinguisher, and realize the conversion from an empty bottle to a full bottle;

[0026] Steps for the host computer: Call the CAN interface library function, start the CAN interface device to enable communication between the host computer and the product under test; according to the edited software, send a manual explosion signal to the product under test and receive the fire extinguisher status signal sent by the product under test; analyze and process the received fire extinguisher status signal and display the result after analysis and processing by the host computer on the user interface; send a signal for simulating the reset of the fire extinguisher.

[0027] Preferably, the steps for driving the simulated fire extinguisher include:

[0028] Steps for generating the reference voltage: The reference voltage circuit generates a reference voltage, converts DC 24V to DC 5V, and provides the reference voltage for the circuit of the simulated fire extinguisher;

[0029] Driving steps: Compare the voltage of the explosion signal output by the product under test with the reference voltage, control the action of the relay, and realize the conversion between a full bottle and an empty bottle.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention meets the need for automatic detection and judgment of the acquisition drive control module, ensures the good function of the product, and enables the user to have the ability to independently, quickly, and accurately detect the acquisition drive control module;

[0032] 2. In the present invention, the data acquisition device uses NI USB-6001, and each digital line can be independently programmed as input or output, and the port can be configured as open collector. With the +5V voltage source of this device, a relatively high driving current can be provided;

[0033] 3. The present invention improves the degree of automation of the test, shortens the test time, and improves the production efficiency. Description of the Drawings

[0034] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present invention will become more obvious:

[0035] Figure 1 is the system structure diagram of the detector for the acquisition drive control module of the present invention;

[0036] Figure 2 is the reference voltage circuit diagram of the detector for the acquisition drive control module of the present invention;

[0037] Figure 3It is the local circuit diagram of the simulated fire extinguisher of the acquisition drive control module detector of the present invention;

[0038] Figure 4 It is the reset circuit diagram of the simulated fire extinguisher of the acquisition drive control module detector of the present invention;

[0039] Figure 5a It is the software flow of the acquisition drive control module detector of the present invention Figure 1 ;

[0040] Figure 5b It is the software flow of the acquisition drive control module detector of the present invention Figure 2 ;

[0041] Figure 5c It is the software flow of the acquisition drive control module detector of the present invention Figure 3 ;

[0042] Figure 6 It is the software interface diagram of the acquisition drive control module detector of the present invention. Specific embodiments

[0043] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all belong to the protection scope of the present invention.

[0044] Figure 1 It is the system structure diagram of the automatic detector of the acquisition drive control module of the present invention. The automatic detector of the acquisition drive control module adopts a test cable, a switching power supply, an analog circuit module, a data acquisition device, a CAN interface device, and a host computer in terms of the overall structure.

[0045] The product under test is reliably connected to the detector through a test cable to provide a path for signal transmission between the two. The host computer starts the CAN interface device according to a predetermined program to establish communication between the host computer and the product under test; the host computer sends a manual burst bottle signal according to a predetermined program, which is transmitted to the product under test through the CAN interface device. The burst bottle signal voltage generated by the product under test is compared with the reference voltage through the simulated fire extinguisher circuit, controlling the relay action in the simulated fire extinguisher circuit to realize the conversion from full bottle to empty bottle. After the product under test collects the fire extinguisher status, this information is sent to the host computer through the CAN interface device. The host computer analyzes and processes the received fire extinguisher status information and displays the detection result on the software interface; the host computer outputs a fire extinguisher reset signal according to a predetermined program, making the data acquisition device output a high level to control the relay action of the simulated fire extinguisher reset circuit and realizing the conversion from empty bottle to full bottle.

[0046] The functional modules of the automatic detection instrument for acquisition drive control modules in the present invention are further described in detail below in conjunction with the accompanying drawings.

[0047] The input of the switching power supply is AC 220V and the output is DC 24V / 16.5A, which provides power for the product under test and the detector.

[0048] The analog circuit module includes an analog fire extinguisher bottle reset circuit, a reference voltage circuit and an analog fire extinguisher bottle circuit, wherein:

[0049] The analog fire extinguisher bottle reset circuit uses an open collector digital output method, such as Figure 4 When the data acquisition device P2.0 outputs a high level, the optocoupler U15 is turned off, and the transistor Q10 is turned off, so the relay J5 package loses power and releases. This further causes the relay J9 package in the simulated fire extinguisher circuit to open the circuit and lose power and release, realizing the empty bottle to full bottle conversion, such as Figure 3 When the data acquisition device P2.0 outputs a low level, the optocoupler U15 is turned on, and thus the transistor Q10 is turned on, so the relay J5 package is electrically attracted, simulating the relay J9 package in the fire extinguisher circuit and forming a loop with the ground.

[0050] Reference voltage circuits, such as Figure 2 , after filtering circuit and DC-DC power module, DC 24V is converted into DC 5V, with ripple less than 50mV, providing reference voltage for the fire extinguisher simulation circuit;

[0051] Simulate the fire extinguisher circuit, such as Figure 3 , compare the output bottle burst signal voltage YB1 of the tested product with the reference voltage VCC. When the tested product does not output the bottle burst signal, YB1<VCC, at this time the optocoupler U2 is turned off, so the transistor Q4 is turned off, and the relay J9 does not work. At this time, the resistance between YB1, YF1 and the ground is extremely small, which is equivalent to the full bottle state. R1 is a 1.5Ω high-power resistor, which is similar to the resistance value between the real fire extinguisher bottle and the ground, and also plays a current limiting role; F1 is a T1.6A slow-blow fuse, which will be blown in time when the tested product fails and continues to output the bottle burst signal, protecting the tested product and the detector from overcurrent damage. When the tested product outputs the bottle burst signal, YB1>VCC, at this time the optocoupler U2 is turned on, so the transistor Q4 is turned on, and the relay J9 is actuated. At this time, YB1, YF1 and the ground are open, which is equivalent to the empty bottle state. When the bottle explosion signal disappears, since the circuit between YB1 and the ground is open, YB1>VCC still holds, and the relay state does not change, which is still equivalent to the empty bottle state. In summary, the simulated fire extinguisher bottle circuit can replace the real fire extinguisher bottle and realize the conversion between the full bottle and the empty bottle state.

[0052] The data acquisition device uses NI USB-6001, which converts the information sent by the host computer into digital signals and outputs them to the analog circuit module.

[0053] The CAN interface device uses USBCAN-II to transmit the CAN data sent by the product under test to the host computer or transmit the CAN data sent by the host computer to the product under test.

[0054] The host computer is installed with the acquisition drive control module test software, which interacts with the data acquisition device and the CAN interface device to complete the information transmission, analyze and process the received information, and display the test results on the software interface. Users can intuitively see the status and fault points of the tested product through the software interface.

[0055] Figure 5a , Figure 5b and Figure 5c The flowchart of the software in the automatic detection instrument of the acquisition drive control module of the present invention is combined. Figure 6 This is the software interface diagram of the acquisition drive control module detector of the present invention, wherein Figure 5a Simulated fire extinguisher bottle reset and Figure 5b The sending "manual bottle bursting signal B" is connected, the j arrow is connected to the m arrow, and the k arrow is connected to the n arrow; Figure 5b The last read fire extinguisher status in Figure 5c The judgment acquisition drive function is connected in the p arrow and the u arrow, and the q arrow and the v arrow are connected. The overall software design adopts the "state machine" structure, including initial state, start, open the device, open CAN, read the fire extinguisher bottle state, send manual bottle explosion signal, simulate fire extinguisher bottle reset, judgment acquisition drive function, reset CAN, close the device, reset, stop, etc.

[0056] Initial state: assign values ​​to device type, index, CAN channel, baud rate, etc., and clear CAN data.

[0057] Start: Click the "Start Button", the button text changes from "Start" to "Testing", indicating that the test is in progress; at the same time, the Start button and Reset button are disabled to prevent misoperation; control the data acquisition device P2.0 to output a low level to close the reset relay; after completion, enter the next state and turn on the device.

[0058] Open the device: call the CAN interface function VCI_OpenDevice to open the device, call the CAN interface function VCI_InitCAN to initialize a CAN channel, and determine whether the operation is successful based on the return value.

[0059] Turn on CAN: Call the CAN interface function VCI_StartCAN to turn on CAN and judge the received CAN data. If the CAN data is empty, the "CAN" light will be red, indicating a fault; if it is not empty, it means that CAN data can be received, and the green light will be on, indicating normal function.

[0060] Read the extinguisher status: Compare the received CAN data with the theoretical value. If they are exactly the same, it means the function of the current step is normal; if not, analyze the CAN data to determine which item is inconsistent, and turn on the red light for the corresponding item of the XX explosion suppression bottle or XX fire extinguisher, indicating a fault in this item.

[0061] Send the manual explosion signal: Assign the manual explosion signals A / B / C to the CAN frame structure VCI_CAN_OBJ_T, and call the sending function VCI_Transmit to transmit the CAN information to the product under test.

[0062] Simulate the reset of the extinguisher: Control the data acquisition device P2.0 to output a high level to release the reset relay.

[0063] Judge the acquisition and drive function: Conduct a logical "AND" judgment on the test results of all previous steps. If any item is "false", the "acquisition and drive" will turn on the red light, indicating a fault; if all are "true", the "acquisition and drive" will turn on the green light, indicating normal function.

[0064] Reset the CAN: Call the CAN interface function VCI_ResetCAN to reset the CAN.

[0065] Close the device: Call the CAN interface function VCI_CloseDevice to close the device, and convert the "reset button" to an available state. The button text of the "start button" changes from "testing" to "completed", indicating that all tests have been completed.

[0066] Reset: Click the "reset button", and all boolean controls such as status indicators and buttons return to their initial states.

[0067] Stop: Click the "stop button", and the software stops running.

[0068] In summary, the present invention meets the need for automatic detection of the current acquisition and drive control module, ensures the reliability of the product function, increases the detectable functions of the product, improves the degree of automation, reduces the time required for detection, and improves the detection efficiency of the product.

[0069] Those skilled in the art know that in addition to implementing the system and its various devices, modules, and units provided by the present invention in the form of pure computer-readable program code, the method steps can be logically programmed to enable the system and its various devices, modules, and units provided by the present invention to be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers, etc., to achieve the same functions. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a kind of hardware component, and the devices, modules, and units included therein for implementing various functions can also be regarded as the structures within the hardware component; the devices, modules, and units for implementing various functions can also be regarded as either software modules for implementing the method or structures within the hardware component.

[0070] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An automatic detection system for a collection drive control module, characterized in that, it includes: a test cable, a switching power supply, an analog circuit module, a data acquisition device, a CAN interface device, and a host computer, where: The test cable: Connects the product under test to the detector and provides a path for signal transmission; The switching power supply: Supplies power to the product under test and the detector; The analog circuit module: Simulates a real fire extinguisher bottle and realizes the conversion between the empty bottle and full bottle states; The data acquisition device: Converts the analog fire extinguisher reset information sent by the host computer into a digital signal and outputs it to the analog circuit module; The CAN interface device: Receives the CAN data sent by the product under test and sends it to the host computer, or transmits the CAN data sent by the host computer to the product under test; The host computer: Provides a running environment for the test software, analyzes and processes the received CAN data, or outputs information to the data acquisition device and the CAN interface device, and displays the result after analysis and processing by the host computer module; The analog circuit module includes an analog fire extinguisher reset circuit, a reference voltage circuit, and an analog fire extinguisher circuit; The analog fire extinguisher reset circuit adopts the way of open collector digital output, isolates and amplifies the digital signal generated by the data acquisition device, drives the reset relay, and controls the reset of the analog fire extinguisher.

2. The automatic detection system for a collection drive control module according to claim 1, characterized in that: The reference voltage circuit converts DC 24V to DC 5V and provides a reference voltage for the analog fire extinguisher circuit.

3. The automatic detection system for a collection drive control module according to claim 1, characterized in that: The analog fire extinguisher circuit compares the burst bottle signal voltage output by the product under test with the reference voltage, controls the action of the relay, and realizes the conversion between the full bottle and the empty bottle.

4. The automatic detection system for a collection drive control module according to claim 1, characterized in that: The data acquisition device uses NI USB-6001.

5. The automatic detection system for a collection drive control module according to claim 1, characterized in that: The CAN interface device uses USBCAN-II.

6. The automatic detection system for a collection drive control module according to claim 1, characterized in that: The input of the switching power supply is AC 220V, and the output is DC 24V / 14.5A.

7. A detection method for a collection drive control module, characterized in that, it includes the following steps: Power supply step: Turn on the switching power supply to achieve power supply; Send manual burst bottle signal step: Transmit the manual burst bottle signal sent by the host computer to the product under test through the CAN interface device, so that the product under test generates a burst bottle signal; Analog fire extinguisher drive step: Compare the burst bottle signal voltage output by the product under test with the reference voltage, control the action of the relay, and realize the conversion from the full bottle to the empty bottle; Receive fire extinguisher status step: Receive the fire extinguisher status signal sent by the product under test through the CAN interface device; Steps for simulating fire extinguisher reset: Convert the simulated fire extinguisher reset information sent by the host computer into digital signals through data acquisition devices, isolate and amplify them through the simulated fire extinguisher reset circuit, drive the reset relay to act, control the simulation of fire extinguisher reset, and realize the conversion from an empty bottle to a full bottle; Host computer steps: Call the CAN interface library function, start the CAN interface device, and enable communication between the host computer and the product under test; According to the edited software, send a manual bottle explosion signal to the product under test and receive the fire extinguisher status signal sent by the product under test; Analyze and process the received fire extinguisher status signal and display the results of the host computer's analysis and processing on the user interface; Send a simulated fire extinguisher reset signal.

8. The acquisition drive control module detection method according to claim 7, characterized in that: The steps for driving the simulated fire extinguisher include: Step for generating reference voltage: The reference voltage circuit generates a reference voltage, converts DC 24V to DC 5V, and provides a reference voltage for the simulated fire extinguisher circuit; Driving step: Compare the voltage of the bottle explosion signal output by the product under test with the reference voltage, control the action of the relay, and realize the conversion between a full bottle and an empty bottle.

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