CN110007163B - Safety detonating device unit tester - Google Patents
Safety detonating device unit tester Download PDFInfo
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- CN110007163B CN110007163B CN201811594052.0A CN201811594052A CN110007163B CN 110007163 B CN110007163 B CN 110007163B CN 201811594052 A CN201811594052 A CN 201811594052A CN 110007163 B CN110007163 B CN 110007163B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to a safe detonating device unit tester, which comprises a display, an extended RS232, a singlechip, an A/D module, a measurement parameter switching module, a signal sorting module, a channel switching module, a test interface, a fault identification unit, a D/A module and a program-controlled power supply, the display is connected with the single chip microcomputer system, the extension RS232 is connected with the single chip microcomputer system, the D/A module is connected with the singlechip system, the program control power supply is connected with the singlechip system, the A/D module is connected with the singlechip system, the measurement parameter switching module is connected with the A/D, the signal arrangement module is connected with the measurement parameter switching module, the channel switching module is connected with the signal arrangement module and the fault identification module, the test interface is connected with the channel switching module, and the fault identification module is connected with the single chip microcomputer system. The invention can realize the test of the electrical performance and the action performance of the safety initiation device and is used as the factory test judgment basis of the safety initiation device.
Description
Technical Field
The invention relates to the field of solid rocket engine testing, in particular to a solid rocket engine safety detonation device unit tester.
Background
The safety priming device is a key component of a solid rocket engine, the reliability of the safety priming device is concerned with the success or failure of the launching of the engine, and whether the performance of the safety priming device meets the overall requirements of the engine or not needs to be subjected to strict tests including electrical performance test, action check and fault detection, so that related test equipment is required to have corresponding functions. The unit tester is a special instrument for performing electrical performance test, action check and fault detection on the safety initiation device. The safety initiation device is a safety protection device of a solid engine, and in order to ensure that the safety initiation device can normally work and improve the reliability of the safety initiation device, the electrical performance and the action performance of the safety initiation device need to be tested. At present, no comprehensive unit test instrument for a safety initiation device exists at home and abroad. Therefore, it is necessary to develop a solid engine unit tester to meet the unit testing requirements of electrical performance and operation performance of the safety detonation device.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
the invention provides a tester for a safety detonating device unit of a solid rocket engine. The safety detonation device is a safety protection device of the solid engine, when the safety detonation device is in a safety state, the product has an explosion-proof function, and when the safety detonation device is in a working state, the product has an explosion-propagating function. In order to ensure that the safety initiation device can work normally, a comprehensive test instrument for testing the electrical performance and the action performance of the safety initiation device needs to be developed so as to meet the test requirement of a safety initiation device unit.
The technical scheme adopted by the invention is as follows:
a safety detonator unit tester, comprising:
a display: the method is mainly used for man-machine interaction and single item and comprehensive test selection;
and expanding RS 232: the system is used for data acquisition of an upper computer and realizes data correction;
a single chip microcomputer: the software system is used for controlling the unit circuit and realizing data selection and correction;
an A/D module: the single chip microcomputer system is used for converting the measured analog signal voltage value into a digital signal and transmitting data to the single chip microcomputer system for processing;
a measurement parameter switching module: the switching circuit is used for switching a resistor, an insulation resistor and a voltage input signal channel;
a signal arrangement module: for amplifying and following the acquisition of the measurement input signal;
a channel switching module: the safety control device is used for switching a working switch, a safety switch and a motor channel of the safety initiation device;
testing an interface: the device is used for connecting a safety detonating device or a standard resistance box;
a fault recognition unit: the system is used for identifying the state of the safety detonating device and transmitting the state to the single chip microcomputer system in real time for fault judgment;
a D/A module: the system is used for converting a digital signal of the singlechip system into an analog signal to realize the voltage control of the program-controlled power supply;
a program-controlled power supply: the power supply is used for supplying power to the unit tester;
the display is connected with the single chip microcomputer system, the extension RS232 is connected with the single chip microcomputer system, the DA module is connected with the single chip microcomputer system, the programmable power supply is connected with the single chip microcomputer system, the AD module is connected with the single chip microcomputer system, the measurement parameter switching module is connected with the AD, the signal sorting module is connected with the measurement parameter switching module, the channel switching module is connected with the signal sorting module and the fault identification module, the test interface is connected with the channel switching module, and the fault identification module is connected with the single chip microcomputer system.
Further, the computer case is further included and used for fixing and placing hardware equipment.
Further, the measured analog signals comprise resistance measurement, voltage measurement and insulation resistance measurement, and the expression is shown as (1):
y＝ax+b……………………(1)
in the formula: x-A/D conversion result;
y is the measured resistance value;
the voltage set value of the program control power supply is a value for converting the set voltage into a D/A requirement, and the expression is shown as (2):
y＝ax+b………………………(2)
in the formula: x-D/A set value;
y is the measured value.
Further, the motor driving circuit is further included, and the motor driving circuit adopts an H-bridge type motor driving circuit structure.
Furthermore, the software system consists of an initialization program, a main program and a subsystem;
the subsystem comprises a comprehensive test, a single-step conversion, a resistance test, an insulation resistance test, a voltage test, a 23V action control, a 28V action control, a timing interrupt service module, a serial port interrupt service module and a keyboard interrupt service module;
the main operation of the main program is to guide the control flow to enter a corresponding function processing module according to the key-in state, and to circulate in the main program if no key-in exists;
the initialization program completes the initialization of the single chip microprocessor and each functional circuit module, completes self-checking operation, sets the unit tester as a factory detection mode of the safe detonating device, and enters the circulation of a main program after the initialization is completed;
the comprehensive testing subsystem is used for testing the insulation resistance of the safety detonation device, controlling the insulation resistance of the safety detonation device and the continuous actions of 23V-10 times, controlling the continuous actions of 28V-10 times and controlling the continuous actions of 31V-10 times, finishing the operation processing and real-time display of the measured data in the electrical property testing process, and performing fault detection and displaying the fault state in the action controlling process.
Furthermore, the resistance test mainly comprises the measurement of the motor resistance, the working switch contact resistance and the safety switch contact resistance, the resistance test range is 0.1-55 omega, the resistance test subsystem can complete the measurement of the motor resistance, the working switch contact resistance and the safety switch contact resistance of the safety initiation device, the serial port transmission, the operation processing and the real-time display of the measured data are completed in the measurement process, and the resistance test or the standard source test of the safety initiation device can be carried out according to the connection state of the test cable;
the voltage testing range is 14V-31V, the voltage testing subsystem firstly sends a program control voltage value set by a user to a D/A converter through operation, then starts an A/D to measure a set program control voltage output value, and measured data is sent to a serial port, operated and displayed;
the insulation resistance test comprises a motor insulation resistance, a working switch insulation resistance and a safety switch insulation resistance, the insulation resistance test range is (4-110) M omega, the insulation resistance test subsystem can complete the measurement of the motor insulation resistance, the working switch insulation resistance and the safety switch insulation resistance of the safety detonation device, and before each channel is tested, the serial port transmission (A/D conversion data), operation processing and real-time display of measurement data are completed in the measurement process through pressurization for 1min (-100V);
the 23V action control subsystem sets a program control voltage value to be 23V and drives the safe initiation device to switch states for 10 times, the 23V action control subsystem sets the program control voltage value to be 23V, controls the state switching of the safe initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safe initiation device is stopped due to faults, and fault types are displayed;
the 28V action control subsystem sets a program control voltage value to be 28V and drives the state of the safety initiation device to be converted for 10 times, the 28V action control subsystem sets the program control voltage value to be 28V, controls the state conversion of the safety initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safety initiation device is stopped due to faults, and fault types are displayed;
the 31V action control subsystem sets a program control voltage value to be 31V and drives the safe initiation device to switch states for 10 times, the 31V action control subsystem sets the program control voltage value to be 31V, controls the state switching of the safe initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safe initiation device is stopped due to faults, and fault types are displayed;
the single-step switching subsystem mainly controls the safe detonation device to switch from insurance to work or work to insurance state, the single-step action control subsystem sets the program-controlled voltage value to output as 26V, controls the safety mechanism to switch from insurance to work or work to insurance state according to the switching state set by a user, judges faults in the control process, stops the safety mechanism due to faults and displays fault information;
the serial port interrupt service subsystem is a channel program for data transmission and reception between the PC and the single chip, completes the reception of all channel correction values sent by the PC and stores the correction values into a CPU memory, and the correction values are used for data correction of insulation resistance, resistance and voltage of all channels;
the keyboard interrupt service subsystem completes action control of a keyboard part, and the keyboard interrupt service subsystem completes jitter elimination, scanning and identification of a keyboard;
and the unit tester selects corresponding test items through the front panel film keys and the man-machine interaction interface to finish the test of the safety initiation device and the standard source.
The invention has the beneficial effects that:
the tester for the safety initiation device unit of the solid rocket engine can realize the test of the electrical performance and the action performance of the safety initiation device and is used as the factory test judgment basis of the safety initiation device.
Drawings
FIG. 1 is a schematic diagram of a unit tester.
FIG. 2 is a schematic diagram of resistance testing of the unit tester.
FIG. 3 is a voltage testing schematic diagram of the unit tester.
FIG. 4 is a schematic diagram of insulation resistance test of the unit tester.
FIG. 5 is a schematic diagram of a motor drive circuit for the unit tester.
FIG. 6 is a flow chart of the unit tester software.
FIG. 7 is a flow chart of the initialization design of the unit tester.
FIG. 8 is a flow chart of the integrated test of the unit tester.
FIG. 9 is a flow chart of resistance testing of the unit tester.
FIG. 10 is a flow chart of voltage testing of the unit tester.
FIG. 11 is a flow chart of unit tester insulation resistance testing.
FIG. 12 is a flow chart of control of 23V-10 actions of the unit tester.
FIG. 13 is a flow chart of control of 28V-10 actions of the unit tester.
FIG. 14 is a flow chart of control of 31V-10 actions of the unit tester.
FIG. 15 is a flow chart of single step conversion of the unit tester.
FIG. 16 is a flow chart of a unit tester serial port interrupt service.
FIG. 17 is a flow chart of the unit tester keyboard interrupt service.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a safety detonator unit tester comprises: a display: the method is mainly used for man-machine interaction and single item and comprehensive test selection; and expanding RS 232: the system is used for data acquisition of an upper computer and realizes data correction; a single chip microcomputer: the software system is used for controlling the unit circuit and realizing data selection and correction; an A/D module: the single chip microcomputer system is used for converting the measured analog signal voltage value into a digital signal and transmitting data to the single chip microcomputer system for processing; a measurement parameter switching module: the switching circuit is used for switching a resistor, an insulation resistor and a voltage input signal channel; a signal arrangement module: for amplifying and following the acquisition of the measurement input signal; a channel switching module: the safety control device is used for switching a working switch, a safety switch and a motor channel of the safety initiation device; testing an interface: the device is used for connecting a safety detonating device or a standard resistance box; a fault recognition unit: the system is used for identifying the state of the safety detonating device and transmitting the state to the single chip microcomputer system in real time for fault judgment; a D/A module: the system is used for converting a digital signal of the singlechip system into an analog signal to realize the voltage control of the program-controlled power supply; a program-controlled power supply: the power supply is used for supplying power to the unit tester; the display is connected with the single chip microcomputer system, the extension RS232 is connected with the single chip microcomputer system, the DA module is connected with the single chip microcomputer system, the programmable power supply is connected with the single chip microcomputer system, the AD module is connected with the single chip microcomputer system, the measurement parameter switching module is connected with the AD, the signal sorting module is connected with the measurement parameter switching module, the channel switching module is connected with the signal sorting module and the fault identification module, the test interface is connected with the channel switching module, and the fault identification module is connected with the single chip microcomputer system.
As shown in fig. 2, the resistance measurement is performed by converting the resistance value into a voltage signal by linear conversion, inputting the voltage signal to an a/D (analog-to-digital converter), and directly calculating the resistance value by equation 1. The a and b in the formula are obtained by measuring the standard resistance value (as a dependent variable) and the corresponding A/D (analog-to-digital converter) conversion result (as an independent variable) for multiple times and performing linear regression processing.
y＝ax+b……………………(1)
In the formula: x-A/D conversion result;
y is the measured resistance value.
As shown in FIG. 3, the voltage measurement is performed by adjusting the measured voltage to the input range required by the A/D, measuring the equivalent value, and calculating the voltage value directly according to the formula 2. The values a and b in the formula are obtained by measuring the standard voltage value (as a dependent variable) and the corresponding A/D (analog-to-digital converter) conversion result (as an independent variable) for multiple times and performing linear regression processing.
y＝ax+b………………………(2)
In the formula: x-A/D conversion result;
y-measured voltage value.
As shown in fig. 4, the insulation resistance measurement is performed by converting the insulation resistance to be measured into a voltage, adjusting the voltage to an input range required by a/D, measuring an equivalent value, and directly calculating a voltage value by equation 3. The values a and b in the formula are obtained by measuring the standard insulation resistance value (the reciprocal of the standard value is used as a dependent variable) and the corresponding A/D (analog-to-digital converter) conversion result (used as an independent variable) for multiple times and performing linear regression processing.
y＝ax+b………………………(3)
In the formula: x-A/D conversion result;
y is the insulation resistance value to be measured.
The program control voltage set value is a value which converts the set voltage into a D/A requirement, and the voltage value required to be output and the D/A value are calculated by a formula 4. The values a and b in the formula are obtained by measuring output voltage values (measured by a high-precision voltmeter as dependent variables) and corresponding set values (as independent variables) of a digital-to-analog converter (D/A) for multiple times and performing linear regression processing.
y＝ax+b……………………(4)
In the formula: x-D/A set value;
y is the measured value.
As shown in fig. 5, the motor drive circuit adopts an H-bridge type motor drive circuit structure. The power field effect transistor is a voltage-controlled element, has the advantages of large input impedance, high switching speed, no secondary breakdown phenomenon, high mobility, good frequency response, high transconductance, high reliability and the like, and meets the requirement of high-speed switching action. An H-bridge drive control circuit is built in a mode that an optical coupler is combined with 4 same N-channel high-power field effect transistors, and isolation of a digital circuit and an analog circuit is achieved. In the figure: the N-channel field effect transistor is selected to be CS640 in model number, and the main parameters are as follows: withstand voltage of 200V and load current of 16A; the bidirectional transient suppression diode and the diode in the field effect transistor have the function of back electromotive force discharge; the power supply loop is connected with a 3A series connection rapid recovery fuse to protect the short circuit damage fault of the driving circuit caused by misoperation in the test process. The turn-on voltage of the CS640 is 2V-4V, the on resistance is 0.18 omega, the maximum on current is 18A, and the integrated diode can be used as a freewheeling diode in the circuit to meet the requirements of the driving circuit. V01, V02, V03 and V04 constitute an H bridge motor drive circuit, and V05 and V06 constitute a solenoid drive circuit.
As shown in FIG. 6, the unit tester system software consists of an initialization program, a main program and a subsystem. The subsystems comprise 10 subsystems of comprehensive test, single-step conversion, resistance test, insulation resistance test, voltage test, 23V action control, 28V action control, timing interrupt service module, serial port interrupt service module and keyboard interrupt service module, coordinate each component of the hardware system of the management unit tester, and complete measurement of the internal insulation resistance, shell insulation resistance, electrical element internal resistance, switch contact resistance and minimum action voltage of the safety initiation device, continuous action control and action fault detection according to the setting of an operator. The main operation of the main program is to guide the control flow to enter the corresponding function processing module according to the key-in state, and to circulate in the main program if no key-in exists.
As shown in fig. 7, the initialization program completes the initialization of the single chip microprocessor and each functional circuit module, completes the self-checking operation, sets the unit tester as a factory detection mode of the safety initiation device, and enters the cycle of the main program after the initialization is completed.
As shown in fig. 8, the main program enters the comprehensive test subsystem first, and the comprehensive test mainly includes the action tests of the motor insulation resistance, the working switch insulation resistance, the safety switch insulation resistance, 23V, 28V, and 31V. The comprehensive test subsystem can sequentially complete the measurement of the insulation resistance of the safety priming device, the control of 23V-10 times of continuous actions, the control of 28V-10 times of continuous actions and the control of 31V-10 times of continuous actions. And the operation processing and real-time display of the measured data are completed in the electrical performance testing process, and the fault detection and the fault state display are performed in the action control process.
As shown in fig. 9, the resistance test mainly includes the measurement of the motor resistance, the contact resistance of the working switch, and the contact resistance of the safety switch. The resistance test range is 0.1 omega-55 omega. The resistance testing subsystem can complete the measurement of the motor resistance, the working switch contact resistance and the safety switch contact resistance of the safety detonation device, complete the serial port transmission (A/D conversion data), the operation processing and the real-time display of the measured data in the measuring process, and can perform the resistance test or the standard source test of the safety detonation device according to the connection state of a testing cable (according to the safety detonation device or the standard source).
As shown in fig. 10, the voltage testing range is 14V to 31V, the voltage testing subsystem firstly sends the programmed voltage value set by the user to the D/a converter after operation, then starts the a/D to measure the set programmed voltage output value, and the measured data is sent to the serial port, operated and displayed.
As shown in fig. 11, the insulation resistance test includes motor insulation resistance, operating switch insulation resistance, and safety switch insulation resistance. The insulation resistance test range is (4-110) M omega. The insulation resistance test subsystem can complete the measurement of the motor insulation resistance, the working switch insulation resistance and the safety switch insulation resistance of the safety detonation device. Before testing each channel, the pressure was applied for 1min (-100V). And in the measuring process, serial port transmission (A/D conversion data), operation processing and real-time display of the measured data are completed.
As shown in fig. 12, the 23V motion control subsystem sets the programmed voltage value to 23V and drives the safety initiator to perform state transition 10 times. The 23V action control subsystem sets the program control voltage value to be 23V, controls the state conversion of the safety initiation device, accumulates the action times until the set times are reached, judges faults in the control process, stops the safety initiation device when the faults occur, and displays the fault types.
As shown in fig. 13, the 28V motion control subsystem sets the programmed voltage value to 28V and drives the safety detonator to switch state 10 times. The 28V action control subsystem sets the program control voltage value to be 28V, controls the state conversion of the safety initiation device, accumulates the action times until the set times are reached, judges faults in the control process, stops the safety initiation device when the faults occur, and displays the fault types.
As shown in fig. 14, the 31V operation control subsystem sets the programmed voltage value to 31V and drives the safety initiator to perform state transition 10 times. The 31V action control subsystem sets the program control voltage value to be 31V, controls the state conversion of the safety initiation device, accumulates the action times until the set times are reached, judges faults in the control process, stops the safety initiation device when the faults occur, and displays the fault types.
As shown in fig. 15, the single step transition subsystem primarily controls the safe initiation device to transition from fail safe to active or active to fail safe. The single-step action control subsystem sets the output of the programmed voltage value to be 26V, controls the safety mechanism to switch from safety to work or from work to safety according to the switching state set by a user, judges the fault in the control process, stops the safety mechanism when the fault occurs and displays the fault information.
As shown in fig. 16, the serial port interrupt service subsystem is a channel program for data transmission between the PC and the single chip. The serial port interrupt service subsystem completes the reception of the correction value of each channel sent by the PC and stores the correction value into the CPU memory. The correction value is used for data correction of insulation resistance, resistance and voltage of each channel.
As shown in fig. 17, the keyboard interrupt service subsystem performs motion control of the keyboard portion. The keyboard interrupt service subsystem completes jitter elimination, scanning and identification of the keyboard.
Claims (6)
1. A safety detonator unit tester, comprising:
a display: the method is mainly used for man-machine interaction and single item and comprehensive test selection;
and expanding RS 232: the system is used for data acquisition of an upper computer and realizes data correction;
a single chip microcomputer: the software system is used for controlling the unit circuit and realizing data selection and correction;
an A/D module: the single chip microcomputer system is used for converting the measured analog signal voltage value into a digital signal and transmitting data to the single chip microcomputer system for processing;
a measurement parameter switching module: the switching circuit is used for switching a resistor, an insulation resistor and a voltage input signal channel;
a signal arrangement module: for amplifying and following the acquisition of the measurement input signal;
a channel switching module: the safety control device is used for switching a working switch, a safety switch and a motor channel of the safety initiation device;
testing an interface: the device is used for connecting a safety detonating device or a standard resistance box;
a fault recognition unit: the system is used for identifying the state of the safety detonating device and transmitting the state to the single chip microcomputer system in real time for fault judgment;
a D/A module: the system is used for converting a digital signal of the singlechip system into an analog signal to realize the voltage control of the program-controlled power supply;
a program-controlled power supply: the power supply is used for supplying power to the unit tester;
the display is connected with the single chip microcomputer system, the extension RS232 is connected with the single chip microcomputer system, the DA module is connected with the single chip microcomputer system, the programmable power supply is connected with the single chip microcomputer system, the AD module is connected with the single chip microcomputer system, the measurement parameter switching module is connected with the AD, the signal sorting module is connected with the measurement parameter switching module, the channel switching module is connected with the signal sorting module and the fault identification module, the test interface is connected with the channel switching module, and the fault identification module is connected with the single chip microcomputer system.
2. The safety detonator unit tester of claim 1 wherein: the computer case is used for fixing and placing hardware equipment.
3. The safety detonator unit tester of claim 1 wherein: the measured analog signals comprise resistance measurement, voltage measurement and insulation resistance measurement, and the expression is shown as (1):
y＝ax+b........................(1)
in the formula: x-A/D conversion results;
y-measured resistance value;
the voltage set value of the program control power supply is a value for converting the set voltage into a D/A requirement, and the expression is shown as (2):
y＝ax+b...........................(2)
in the formula: x-D/A set value;
y-measured value.
4. The safety detonator unit tester of claim 1 wherein: the motor driving circuit adopts an H-bridge type motor driving circuit structure.
5. The safety detonator unit tester of claim 1 wherein: the software system consists of an initialization program, a main program and a subsystem;
the subsystem comprises a comprehensive test, a single-step conversion, a resistance test, an insulation resistance test, a voltage test, a 23V action control, a 28V action control, a timing interrupt service module, a serial port interrupt service module and a keyboard interrupt service module;
the main operation of the main program is to guide the control flow to enter a corresponding function processing module according to the key-in state, and to circulate in the main program if no key-in exists;
the initialization program completes the initialization of the single chip microprocessor and each functional circuit module, completes self-checking operation, sets the unit tester as a factory detection mode of the safe detonating device, and enters the circulation of a main program after the initialization is completed;
the comprehensive testing subsystem is used for testing the insulation resistance of the safety detonation device, controlling the insulation resistance of the safety detonation device and the continuous actions of 23V-10 times, controlling the continuous actions of 28V-10 times and controlling the continuous actions of 31V-10 times, finishing the operation processing and real-time display of the measured data in the electrical property testing process, and performing fault detection and displaying the fault state in the action controlling process.
6. The safety detonator unit tester of claim 5 wherein:
the resistance test mainly comprises the measurement of a motor resistance, a working switch contact resistance and a safety switch contact resistance, the resistance test range is 0.1-55 omega, the resistance test subsystem can complete the measurement of the motor resistance, the working switch contact resistance and the safety switch contact resistance of the safety initiation device, the serial port transmission, the operation processing and the real-time display of measured data are completed in the measurement process, and the resistance test or the standard source test of the safety initiation device can be carried out according to the connection state of a test cable;
the voltage testing range is 14V-31V, the voltage testing subsystem firstly sends a program control voltage value set by a user to a D/A converter through operation, then starts an A/D to measure a set program control voltage output value, and measured data is sent to a serial port, operated and displayed;
the insulation resistance test comprises a motor insulation resistance, a working switch insulation resistance and a safety switch insulation resistance, the insulation resistance test range is 4-110M omega, the insulation resistance test subsystem can complete the measurement of the motor insulation resistance, the working switch insulation resistance and the safety switch insulation resistance of the safety detonation device, before each channel is tested, the pressure is applied for 1min through 100V, and the serial port for completing the measurement data sends A/D conversion data, operation processing and real-time display in the measurement process;
the 23V action control subsystem sets a program control voltage value to be 23V and drives the safe initiation device to switch states for 10 times, the 23V action control subsystem sets the program control voltage value to be 23V, controls the state switching of the safe initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safe initiation device is stopped due to faults, and fault types are displayed;
the 28V action control subsystem sets a program control voltage value to be 28V and drives the state of the safety initiation device to be converted for 10 times, the 28V action control subsystem sets the program control voltage value to be 28V, controls the state conversion of the safety initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safety initiation device is stopped due to faults, and fault types are displayed;
the 31V action control subsystem sets a program control voltage value to be 31V and drives the safe initiation device to switch states for 10 times, the 31V action control subsystem sets the program control voltage value to be 31V, controls the state switching of the safe initiation device and accumulates action times until the set times are reached, fault judgment is carried out in the control process, the safe initiation device is stopped due to faults, and fault types are displayed;
the single-step switching subsystem mainly controls the safe detonation device to switch from insurance to work or work to insurance state, the single-step action control subsystem sets the program-controlled voltage value to output as 26V, controls the safety mechanism to switch from insurance to work or work to insurance state according to the switching state set by a user, judges faults in the control process, stops the safety mechanism due to faults and displays fault information;
the serial port interrupt service subsystem is a channel program for data transmission and reception between the PC and the single chip, completes the reception of all channel correction values sent by the PC and stores the correction values into a CPU memory, and the correction values are used for data correction of insulation resistance, resistance and voltage of all channels;
the keyboard interrupt service subsystem completes action control of a keyboard part, and the keyboard interrupt service subsystem completes jitter elimination, scanning and identification of a keyboard;
and the unit tester selects corresponding test items through the front panel film keys and the man-machine interaction interface to finish the test of the safety initiation device and the standard source.
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| CN114994450B (en) * | 2022-08-03 | 2022-11-25 | 中测智能(海南)装备制造有限公司 | Electronic safety and safety relief device detection equipment for detonating device |
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| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
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| CN106771635A (en) * | 2017-02-15 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of circuit resistance tester |
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|---|---|---|---|---|
| US7902847B2 (en) * | 2006-08-31 | 2011-03-08 | Hynix Semiconductor Inc. | Semiconductor device and test method thereof |
| CN202329648U (en) * | 2011-11-25 | 2012-07-11 | 西安航天精密机电研究所 | Rate gyroscope combined unit tester |
| CN105091677A (en) * | 2014-05-08 | 2015-11-25 | 中国航天科工集团第六研究院四十一所 | Fault simulation device of safety initiation device |
| CN104360298A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Performance test system and method for merging unit tester |
| CN106771635A (en) * | 2017-02-15 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of circuit resistance tester |
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