CN110737596B - Multifunctional detection system and method for fuel cell computer board - Google Patents

Multifunctional detection system and method for fuel cell computer board Download PDF

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CN110737596B
CN110737596B CN201910969992.1A CN201910969992A CN110737596B CN 110737596 B CN110737596 B CN 110737596B CN 201910969992 A CN201910969992 A CN 201910969992A CN 110737596 B CN110737596 B CN 110737596B
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CN110737596A (en
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周明强
杨二辉
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China Hydrogen Energy Technology Co
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/36—Preventing errors by testing or debugging software
    • G06F11/362—Software debugging
    • G06F11/3644—Software debugging by instrumenting at runtime
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/61—Installation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Fuel Cell (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The invention provides a multifunctional detection system and a method for a fuel cell computer board, wherein the system comprises a computer board detection module, a detection module and a detection module, wherein the computer board detection module is connected with a driving chip of a computer board to be detected through a connecting wire harness and is used for carrying out program burning or program debugging on the computer board to be detected; the sensor testing module is connected with the sensor module to be tested on the computer board to be tested through a connecting wire harness and is used for simulating and outputting a sensor signal to perform simulation test on the sensor module to be tested; the actuator detection module is connected with an actuator driving port of the computer board to be detected through a connecting wire harness; and the power supply module is respectively electrically connected with the computer board detection module, the sensor test module and the actuator detection module and provides electric energy for the computer board detection module, the sensor test module and the actuator detection module. The fuel cell computer board multifunctional detection system of the invention burns or debugs the computer board program, carries out simulation test on the sensor module on the computer board and carries out simulation experiment on the actuator.

Description

Multifunctional detection system and method for fuel cell computer board
Technical Field
The invention relates to the technical field of detection systems, in particular to a fuel cell computer board multifunctional detection system and a method.
Background
At present, a control system circuit part of a fuel cell comprises a computer board, a direct current brushless motor, a motor drive board, a temperature sensor, a pressure sensor, a liquid level sensor, a current sensor, an oil nozzle, a fuel pump, a heating wire, a heating rod and a heating control circuit, wherein the main control computer board comprises an embedded single chip microcomputer, a sensor module, a load drive circuit and a communication circuit; the sensor module mainly analyzes and processes signals detected by the sensor.
In the production process of the control system circuit of the fuel cell, a detection system is urgently needed to burn or debug the computer board program, perform simulation test on the sensor module on the computer board and perform simulation experiment on the actuator drive of the computer board.
Disclosure of Invention
The present invention provides a multifunctional testing system for a computer board with a fuel cell, which is used for burning or debugging programs of the computer board, performing simulation tests on sensor modules on the computer board, and performing simulation experiments on actuator drivers of the computer board to be tested.
The embodiment of the invention provides a fuel cell computer board multifunctional detection system, which comprises:
the computer board detection module is connected with a driving chip of the computer board to be detected through a connecting wire harness and is used for carrying out program burning or program debugging on the computer board to be detected;
the sensor testing module is connected with the sensor module to be tested on the computer board to be tested through a connecting wire harness and is used for simulating and outputting a sensor signal to perform simulation testing on the sensor module to be tested;
the executor detection module is connected with an executor driving port of the computer board to be tested through a connecting wire harness and is used for carrying out simulation test on an executor driving signal of the computer board to be tested;
and the power supply module is electrically connected with the computer board detection module, the sensor test module and the actuator detection module respectively and provides electric energy for the computer board detection module, the sensor test module and the actuator detection module.
Optionally, the computer board detection module includes:
the communication module is connected with the driving chip of the computer board and is used for data transmission;
and the computer is connected with the communication module, communicates with the drive chip of the computer board through the communication module, and adopts a program in the computer to burn or debug the program of the computer board.
Optionally, the actuator detection module is further configured to be connected to the actuator to be tested through a connection harness, and configured to perform a simulation test on the actuator to be tested.
The actuator to be tested comprises: a motor, a fuel supply, a heater, and a relay.
Optionally, the actuator detecting module includes: the system comprises a motor detection module, a heater detection module, a fuel supplier detection module and a relay detection module;
the motor detection module includes:
the motor control signal generating circuit is used for generating a motor control signal;
the motor input terminals are used for accessing motor driving signals of the computer board to be tested or motor control signals generated by the motor control signal generating circuit;
one end of each motor input switch is connected with the motor control signal generating circuit, and the other end of each motor input switch is connected with the motor input terminal and used for connecting the motor control signal to the motor input terminal when the motor input switches are closed;
the fixed ends of the motor change-over switches are connected with the motor input terminal, and the change-over ends of the motor change-over switches are respectively connected with the virtual load motor and the motor to be tested and used for switching between the virtual load motor and the motor to be tested;
one end of each motor indicator lamp circuit is connected with the motor input terminal, and the other end of each motor indicator lamp circuit is grounded and used for indicating whether the motor driving signal is connected to the motor input terminal or not or indicating whether the motor control signal is connected to the motor input terminal or not;
the motor rotating speed display circuit is connected with the motor to be tested and used for receiving and displaying the rotating speed of the motor to be tested fed back by the motor to be tested;
the motor control signal display circuit is connected with the motor control signal generating circuit and is used for displaying the motor control signal;
the motor input switch, the motor input terminal, the motor selector switch and the motor indicator light circuit are in one-to-one correspondence.
Optionally, the heater detection module includes:
the first heater input terminal and the second heater input terminal are used for accessing a heater driving signal of the computer board;
a heater signal generating circuit for generating a heater control signal;
a heater input switch having one end connected to one end of the heater signal generating circuit and the other end connected to the first heater input terminal, the other end of the heater signal generating circuit being connected to the second heater input terminal;
a heater indication circuit, one end of which is connected with the first heater input terminal and the other end of which is connected with the second heater input terminal, for indicating whether a test loop between the first heater input terminal and the second heater input terminal is normal;
one end of the heater switch is connected with the first heater input terminal, the other end of the heater switch is respectively connected with one end of the heater to be tested or one end of the virtual load heater, and the other end of the heater to be tested is connected with the second heater input terminal; the other end of the dummy load heater is connected to the second heater input terminal; the heater switch is used for inputting a heater driving signal of a computer board to the virtual load heater or inputting a heater control signal to a heater to be tested;
the fuel supply detection module includes:
the first nozzle input terminal and the second nozzle input terminal are used for accessing a nozzle driving signal of the computer board;
a nozzle signal generating circuit for generating a nozzle control signal;
a nozzle input switch, one end of which is connected with one end of the nozzle signal generating circuit, the other end of which is connected with the first nozzle input terminal, and the other end of which is connected with the second nozzle input terminal;
a nozzle indication circuit, one end of which is connected to the first nozzle input terminal and the other end of which is connected to the second nozzle input terminal, for indicating whether a test loop between the first nozzle input terminal and the second nozzle input terminal is normal;
a nozzle change-over switch, one end of which is connected with the first nozzle input terminal, the other end of which is respectively connected with one end of the nozzle to be tested or one end of the virtual load nozzle, and the other end of the nozzle to be tested is connected with the second nozzle input terminal; the other end of the dummy load nozzle is connected to the second nozzle input terminal; the nozzle change-over switch is used for inputting a nozzle driving signal of a computer board to the virtual load nozzle or inputting the nozzle control signal to the nozzle to be tested.
Optionally, the solenoid valve detecting module includes:
the first electromagnetic valve input terminal and the second electromagnetic valve input terminal are used for accessing electromagnetic valve driving signals of the computer board;
the electromagnetic valve control signal generating circuit is used for generating an electromagnetic valve control signal;
one end of the electromagnetic valve input switch is connected with one end of the electromagnetic valve control signal generating circuit, the other end of the electromagnetic valve input switch is connected with the first electromagnetic valve input terminal, and the other end of the electromagnetic valve control signal generating circuit is connected with the second electromagnetic valve input terminal;
the electromagnetic valve indicating circuit is connected with the first electromagnetic valve input terminal at one end and the second electromagnetic valve input terminal at the other end, and is used for indicating whether a test loop between the first electromagnetic valve input terminal and the second electromagnetic valve input terminal is normal or not;
one end of the electromagnetic valve change-over switch is connected with the first electromagnetic valve input terminal, the other end of the electromagnetic valve change-over switch is respectively connected with one end of the electromagnetic valve to be tested or one end of the virtual load electromagnetic valve, and the other end of the electromagnetic valve to be tested is connected with the second electromagnetic valve input terminal; the other end of the virtual load electromagnetic valve is connected with the input terminal of the second electromagnetic valve; the electromagnetic valve change-over switch is used for inputting an electromagnetic valve driving signal of a computer board to the virtual load electromagnetic valve or inputting an electromagnetic valve control signal to the electromagnetic valve to be tested;
the relay detection module includes:
the first relay coil input terminal and the second relay coil input terminal are used for accessing a relay coil driving signal of the computer board;
the relay coil signal generating circuit is used for generating a relay coil control signal;
a coil signal input switch, one end of which is connected with one end of the relay coil signal generating circuit and the other end of which is connected with the first relay coil input terminal; the other end of the relay coil signal generating circuit is connected with the second relay coil input terminal;
the relay contact signal generating circuit is used for generating a relay contact control signal;
one end of the contact signal input switch is connected with the relay contact signal generating circuit, the other end of the contact signal input switch is connected with the first relay contact input terminal, and the other end of the relay contact signal generating circuit is connected with the second relay contact input terminal;
the relay coil indicating lamp circuit is connected with the first relay coil input terminal at one end and connected with the second relay coil input terminal at the other end and used for indicating whether a test loop between the first relay coil input terminal and the second relay coil input terminal is normal or not;
the relay contact point indicating circuit is connected with the first relay contact point input terminal at one end and connected with the second relay contact point input terminal at the other end, and is used for indicating whether a test loop between the first relay contact point input terminal and the second relay contact point input terminal is normal or not;
one end of the relay output selector switch is connected with the relay coil input terminal, the other end of the relay output selector switch is respectively connected with one end of a virtual load relay or one end of a coil of a relay to be tested, the other end of the virtual load relay is connected to the second relay coil input terminal, and the other end of the coil of the relay to be tested is connected to the second relay coil input terminal; the relay output selector switch is used for inputting a relay coil control signal to a coil of the relay or inputting a relay coil driving signal of the computer board to the virtual load relay;
and one end of the contact of the relay to be tested is connected to the first relay contact input terminal, and the other end of the contact of the relay to be tested is connected to the second relay contact input terminal.
Optionally, the sensor testing module includes: the device comprises an oxygen content testing module, a pressure testing module, a current sensor testing module, a liquid level sensor testing module, a temperature sensor testing module and a K-type thermocouple testing module;
the oxygen content testing module comprises:
the oxygen sensor signal simulation circuit is used for generating an oxygen content sensor simulation signal;
the oxygen sensor input signal switch is connected with the oxygen sensor signal analog circuit and used for connecting the oxygen content sensor analog signal to a data receiving end of an oxygen content detection module of the computer board;
the oxygen sensor control signal test circuit is connected with the oxygen sensor heating control end of the oxygen content detection module and used for testing the control signal output by the oxygen sensor heating control end;
the oxygen sensor heating work indicator light is connected with the oxygen sensor control signal test circuit and used for indicating whether the oxygen sensor heating control end works normally or not;
and the oxygen sensor signal indicating lamp circuit is connected with the oxygen sensor signal analog circuit and is used for indicating whether the oxygen sensor signal analog circuit works normally or not.
Optionally, the pressure testing module includes:
the pressure signal simulation circuit is used for generating a pressure sensor simulation signal;
the pressure signal input switch is connected with the pressure signal simulation circuit and used for leading the simulation signal of the pressure sensor to the pressure signal output change-over switch when the pressure signal input switch is in a closed state;
the pressure signal indicating lamp circuit is connected with the pressure signal simulation circuit and indicates whether the pressure signal simulation circuit works normally or not;
one end of the pressure signal output changeover switch is connected with the pressure signal input switch, and the other end of the pressure signal output changeover switch is connected with the pressure detection module of the computer board and used for leading the analog signal of the pressure sensor into the pressure detection module;
the current sensor test module includes:
the current signal simulation circuit is used for generating a current simulation signal;
the current sensor signal indicating lamp circuit is connected with the current signal analog circuit and is used for indicating whether the current signal analog circuit works normally or not;
one end of the current signal input switch is connected with the current signal analog circuit, and the other end of the current signal input switch is connected with the current sensor detection module of the computer board, so that the current analog signal is led into the current sensor detection module;
the level sensor test module includes:
the liquid level signal analog circuit is used for generating a liquid level analog signal;
the liquid level signal indicating lamp circuit is connected with the liquid level signal analog circuit and is used for indicating whether the liquid level signal analog circuit works normally or not;
and one end of the liquid level signal switch is connected with the liquid level signal analog circuit, and the other end of the liquid level signal switch is connected with the liquid level sensor module of the computer board and used for leading the liquid level analog signal into the liquid level sensor module.
Optionally, the temperature sensor testing module includes:
the temperature signal simulation circuit is used for generating a temperature simulation signal;
one end of the temperature signal input switch is connected with the temperature signal simulation circuit, and the other end of the temperature signal input switch is connected with the temperature sensor detection module of the computer board and used for leading the temperature simulation signal into the temperature sensor detection module;
the K-type thermocouple testing module comprises:
the K-type thermocouple signal simulation circuit is used for generating a K-type thermocouple simulation signal;
the K-type thermocouple signal output terminal is connected with a K-type thermocouple detection module in a sensor module of the computer board through a wire harness;
and one end of the K-type thermocouple signal change-over switch is connected with the K-type thermocouple signal analog circuit, and the other end of the K-type thermocouple signal change-over switch is connected with the K-type thermocouple detection module of the computer board and used for leading the K-type thermocouple analog signal into the K-type thermocouple detection module.
Optionally, the power module includes:
a power supply circuit for converting alternating current to direct current;
the power switch controller is connected with the power circuit and is used for controlling the on-off of the electric energy;
the direct current air switch is connected with the power switch controller and used for arc extinguishing during circuit breaking;
the fuse circuit is connected with the direct current air switch and used for protecting the circuit during short circuit;
the voltage and current detection circuit is connected with the fuse circuit and is used for detecting the current and the voltage in the circuit;
and the voltage and current regulating circuit is connected with the voltage and current detection circuit and is used for regulating the current and the voltage in the circuit.
Optionally, the method further includes:
the wireless communication module is arranged in the computer and is used for the communication connection between the computer and the server and the mobile terminal respectively;
the key is used for receiving an operator operation starting command and is connected with the computer;
the mobile terminals are used for receiving information input by an operator; the mobile terminals are used in a one-to-one correspondence manner with operators;
the server is in communication connection with the computer and is used for storing operator information;
the computer acquires an operation starting command through the key and sends the operation starting command to the server through the wireless communication module;
after receiving the operation starting command, the server sends a starting confirmation instruction to the mobile terminal;
after receiving the start confirmation instruction, the mobile terminal displays the start confirmation instruction and receives feedback information of an operator on the start confirmation instruction; the feedback information includes: yes or no;
when the mobile terminal receives the feedback information, the mobile terminal sends the identification code of the mobile terminal to the server;
the server inquires out operator information which is stored corresponding to the mobile terminal identification code according to the mobile terminal identification code and sends the operator information and the terminal identification code to the computer together;
the computer is bound with the mobile terminal after receiving the identification code of the mobile terminal through the wireless communication module; the computer receives the operator information through the wireless communication module, generates an operation report according to the operator information and sends the operation report to the mobile terminal through the wireless communication module; the mobile terminal receives and displays the operation report;
the mobile terminal receives the information input by the operator on the operation report and fills the operation report; and the mobile terminal sends the operation report to the computer for storage through the wireless communication module after the operation report is filled.
Optionally, the server receives request information sent by the mobile terminal, where the request information includes a request, a terminal identifier of the mobile terminal, and location information; analyzing the request information according to a preset rule to obtain instruction information, wherein the instruction information comprises an instruction and a terminal identifier of a computer; when the instruction is to start operation, acquiring a terminal identifier of a computer included in the instruction information, judging whether the computer is bound with other mobile terminals and whether the mobile terminal is bound with other computers, when the computer is not bound with other mobile terminals and the mobile terminal is not bound with other computers, binding the mobile terminal serving as a first mobile terminal with the computer, sending the terminal identifier of the first mobile terminal to the computer, and sending the terminal identifier of the computer to the first mobile terminal;
the first mobile terminal establishes communication connection with the computer through the wireless communication module according to the terminal identification of the computer, sends stored operator information to the computer through the wireless communication module, receives an operation report generated by the computer based on the operator information, receives information input by an operator through the wireless communication module to fill the operation report, and sends the information to the computer through the wireless communication module for storage after the operation report is filled;
analyzing the request information according to a preset rule to obtain instruction information, wherein the instruction information comprises an instruction and a terminal identifier of a computer, and the method comprises the following steps:
analyzing the positioning information, acquiring a detection platform corresponding to the position of the positioning information, and acquiring a terminal identification code of a computer of the detection platform;
and analyzing the request to obtain an instruction.
Optionally, in the process of performing the simulation test on the actuator driving signal of the computer board to be tested, the actuator detection module needs to perform adaptive dryness removal adjustment on the actuator driving signal of the computer board to be tested in order to improve the accuracy of the simulation test on the actuator driving signal of the computer board to be tested, where the adaptive dryness removal adjustment includes the following steps:
a1, determining a noise stego coefficient of the actuator driving signal;
Figure GDA0003834546050000101
wherein λ 1 is the noise common secret coefficient, u is the load voltage of the computer board to be tested, r is the signal source internal resistance of the actuator driving signal, Q is the preset electronic charge, i is the load current of the computer board to be tested, D is the system equivalent noise bandwidth of the computer board to be tested, f is the preset noise control constant, and T is the temperature of the environment where the computer board to be tested is located,
a2, acquiring the actuator driving signal within a preset time as a discrimination signal, detecting the current actuator driving signal as an actual signal, and determining the noise intensity coefficient of the actual signal by using the discrimination signal;
Figure GDA0003834546050000102
where λ 2 is a noise intensity coefficient, E (Mx) is the expectation of the discrimination signal, and E (Mx) 2 ) Exp () is an exponential function with a natural constant e as the base, x is the actual signal, which is the expectation of the square of the discrimination signal;
a3, acquiring an actuator driving signal after adaptive drying adjustment;
Figure GDA0003834546050000103
wherein S is an actuator driving signal after adaptive drying adjustment, A is the fluctuation period of the discrimination signal,
Figure GDA0003834546050000104
in order to be a damping coefficient of the damping,
Figure GDA0003834546050000105
the angular frequency of the discrimination signal;
and A4, adjusting the actuator driving signal subjected to the simulation test into an actuator driving signal subjected to adaptive drying adjustment.
The invention also provides a multifunctional detection method for the fuel cell computer board, which comprises the following steps:
step 1: connecting a computer board to be tested to the multifunctional detection system of the fuel cell computer board according to any one of claims 1 to 9 through a wire harness; the system comprises a computer board to be tested, a sensor testing module, a connecting wire harness, an actuator driving port and an actuator testing module, wherein the driving chip of the computer board to be tested is connected with the computer board testing module through the connecting wire harness; connecting a power supply input port of the computer board to be tested with a power supply module through a connecting wire harness;
step 2: starting a power supply module, and carrying out program burning or program debugging on a drive chip of the computer board to be tested through the computer board detection module;
and step 3: the sensor module to be tested is subjected to analog test by the sensor test module for simulating and outputting a sensor signal, and the result detected by the sensor module to be tested is compared with a standard result, so that the performance of the sensor module to be tested is tested;
and 4, step 4: and testing the driving performance of the actuator of the computer board to be tested by observing the action of the actuator detection module after receiving the actuator driving signal of the computer board to be tested.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of a computer board multifunctional testing system for a fuel cell according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a computer board multifunctional testing system for a fuel cell according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a motor detection module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a heater detection module according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a fuel supply detection module according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a solenoid detection module according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a relay detection module according to an embodiment of the invention;
FIG. 8 is a schematic diagram of an oxygen content testing module according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a pressure testing module according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a current sensor testing module according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of the communication connection of a computer board multifunctional testing system of a fuel cell in an embodiment of the present invention;
fig. 12 is a schematic diagram of a method for detecting multiple functions of a computer board of a fuel cell according to an embodiment of the present invention.
In the figure:
1. a circuit board detection module; 2. a driver chip; 3. a sensor testing module; 4. a sensor module to be tested; 5. an actuator detection module; 6. an actuator to be tested; 7. a power supply module; 8. an actuator drive port; 11. a wireless communication module; 12. a computer; 13. pressing a key; 14. a mobile terminal; 15. a server; 21-1, a motor control signal generating circuit; 21-2, a motor input switch; 21-3, a motor input terminal; 21-4, a motor indicator light circuit; 21-5, a motor change-over switch; 21-6, a motor to be tested; 21-7, a virtual load motor; 21-8, a motor rotating speed display circuit; 21-9, a motor control signal display circuit; 22-1, a first heater input terminal; 22-2, a second heater input terminal; 22-3, a heater signal generating circuit; 22-4, heater input switch; 22-5, a heater indication circuit; 22-6, a heater switch; 22-7, a heater to be tested; 22-8, a dummy load heater; 23-1, a first nozzle input terminal; 23-2, a second nozzle input terminal; 23-3, a nozzle signal generating circuit; 23-4, a nozzle input switch; 23-5, a nozzle indication circuit; 23-6, a nozzle change-over switch; 23-7, a nozzle to be detected; 23-8, a dummy load nozzle; 24-1, a first solenoid valve input terminal; 24-2, a second electromagnetic valve input terminal; 24-3, a solenoid valve control signal generating circuit; 24-4, an electromagnetic valve input switch; 24-5, an electromagnetic valve indicating circuit; 24-6, electromagnetic valve change-over switch; 24-7, a solenoid valve to be tested; 24-8, a virtual load solenoid valve; 25-1, a first relay coil input terminal; 25-2, a second relay coil input terminal; 25-3 relay coil signal generating circuit; 25-4, a coil signal input switch; 25-5, a relay contact signal generating circuit; 25-6, contact signal input switch; 25-7, relay coil indicating lamp circuit; 25-8, relay contact indicating lamp circuit; 25-9, a first relay contact input terminal; 25-10, a second relay contact input terminal; 25-11, a relay output change-over switch; 25-12, a relay to be tested; 25-13, a virtual load relay; 31-1, an oxygen sensor signal analog circuit; 31-2, an oxygen sensor input signal change-over switch; 31-3, an oxygen sensor signal indicating lamp circuit; 31-4, an oxygen sensor control signal test circuit; 31-5, heating a working indicator lamp by the oxygen sensor; 32-1, a pressure signal analog circuit; 32-2, a pressure signal input switch; 32-3, a pressure signal output change-over switch; 32-4, a pressure signal indicating lamp circuit; 33-1, a current signal analog circuit; 33-2, current signal input switch; 33-3, the current sensor signal indicates the lamp circuit.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides a fuel cell computer board multifunctional detection system, as shown in fig. 1, including:
the computer board detection module 1 is connected with the driving chip 2 of the computer board to be detected through a connecting wire harness and is used for carrying out program burning or program debugging on the computer board to be detected;
the sensor testing module 3 is connected with the sensor module 4 to be tested on the computer board to be tested through a connecting wire harness and is used for simulating and outputting a sensor signal to perform simulation testing on the sensor module 4 to be tested;
the executor detection module 5 is connected with an executor driving port 8 of the computer board to be tested through a connecting wire harness and is used for carrying out simulation test on an executor driving signal of the computer board to be tested;
and the power supply module 7 is respectively electrically connected with the computer board detection module 1, the sensor test module 3, the power supply input port of the computer board to be detected and the actuator detection module 5, and provides electric energy for the computer board detection module 1, the power supply input port of the computer board to be detected, the sensor test module 3 and the actuator detection module 5.
The working principle and the beneficial effects of the technical scheme are as follows:
the computer board to be tested is connected to the fuel cell computer version multifunctional detection system through a connecting wire harness, and a program in a driving chip 2 of the computer board to be tested is burned or debugged through a computer board detection module 1; the sensor testing module 3 outputs an analog sensor signal to perform analog testing on a sensor module 4 to be tested on a computer board to be tested; and performing simulation test on the actuator driving signal of the computer board to be tested through the actuator detection module 5, and testing the actuator driving performance of the computer board to be tested.
The fuel cell computer board multifunctional detection system of the invention burns or debugs the computer board program, carries out simulation test on the sensor module on the computer board, and drives the simulation experiment on the actuator of the computer board to be tested.
In one embodiment, the computer board detection module 1 includes:
the communication module is connected with the drive chip 2 of the computer board and used for ensuring data transmission in the process of program burning or program debugging of the drive chip of the computer board;
and the computer 12 is connected with the communication module, the computer 12 is communicated with the drive chip 2 of the computer board through the communication module, and the computer 12 adopts the program in the computer 12 to burn or debug the program of the computer board.
The working principle and the beneficial effects of the technical scheme are as follows:
the computer 12 performs data transmission with the computer version drive chip 2 through the communication module, and the computer 12 performs burning or program debugging on the computer version drive chip 2 by using a program in the computer 12; the communication module includes: an RS485 to USB module, an RS232 to USB module, etc. The driving chip 2 adopts a singlechip.
In one embodiment, as shown in fig. 2, the actuator detection module 5 is further configured to be connected to the actuator 6 to be tested through a connection harness, and configured to perform a simulation test on the actuator 6 to be tested; the actuator 6 to be measured includes: a motor, a fuel supply, a heater, and a relay.
The working principle and the beneficial effects of the technical scheme are as follows:
the actuator detection module 5 can test not only the actuator drive of the computer board, but also the performance of each actuator (motor, fuel supplier, heater and relay) to be connected with the computer board.
In one embodiment, the actuator detection module 5 includes: the system comprises a motor detection module, a heater detection module, a fuel supplier detection module, a heater detection module and a relay detection module;
as shown in fig. 3, the motor detection module includes:
a motor control signal generating circuit 21-1 for generating a motor control signal;
the motor input terminals 21-3 are used for accessing motor driving signals of the computer board to be tested or motor control signals generated by the motor control signal generating circuit 21-1;
one end of each motor input switch 21-2 is connected with the motor control signal generating circuit 21-1, and the other end of each motor input switch is connected with the motor input terminal 21-3, and the motor input switches 21-2 are used for connecting the motor control signals to the motor input terminals 21-3 when being closed;
the fixed ends of the motor change-over switches 21-5 are connected with the motor input terminals 21-3, and the change-over ends of the motor change-over switches are respectively connected with the virtual load motors 21-7 and the motors to be tested 21-6 and used for switching between the virtual load motors 21-7 and the motors to be tested 21-6;
one end of each motor indicator light circuit 21-4 is connected with the motor input terminal 21-3, and the other end of each motor indicator light circuit is grounded and used for indicating whether the motor driving signal is connected to the motor input terminal 21-3 or indicating whether the motor control signal is connected to the motor input terminal 21-3;
the motor rotating speed display circuit 21-8 is connected with the motor to be tested 21-6 and is used for receiving and displaying the rotating speed of the motor to be tested 21-6 fed back by the motor to be tested 21-6;
the motor control signal display circuit 21-9 is connected with the motor control signal generating circuit 21-1 and is used for displaying the motor control signal;
the motor input switch 21-2, the motor input terminal 21-3, the motor selector switch 21-5 and the motor indicator light circuit 21-4 are in one-to-one correspondence.
The working principle and the beneficial effects of the technical scheme are as follows:
because the motor is generally a three-phase motor, three motor input switches, three motor input terminals, three motor change-over switches and three motor indicator light circuits are provided, and the three motor input switches, the three motor input terminals, the three motor change-over switches and the three motor indicator light circuits correspond to three phases of the motor respectively;
testing a motor driving signal of the computer board: when the motor driving signal of the computer board is respectively connected to the motor input terminals 21-3 through the connecting wire harness; the motor input switch 21-2 is in an off state; the motor change-over switch 21-5 is switched to be connected with the virtual load motor, so that a motor driving signal of the computer board is loaded on the virtual load motor 21-7, and the performance of the motor driving signal of the computer board is detected by detecting the motor rotating speed of the virtual load motor 21-7 under the action of the motor driving signal. Wherein the dummy load motor 21-7 is a motor equivalent circuit provided on the system of the present invention; the motor speed of the virtual load motor 21-7 is calculated by detecting the current on the motor equivalent circuit.
Testing the performance of the motor to be tested: according to the figure 3, a motor 21-6 to be tested is connected to a motor change-over switch 21-5; the motor driving signal of the computer board is not connected to the motor input terminal 21-3; the motor input switch 21-2 is closed; the motor change-over switch 21-5 is switched to be connected with the motor 21-6 to be tested, so that the motor control signal generated by the motor control signal generating circuit 21-1 is loaded on the motor 21-6 to be tested, the motor rotating speed of the motor 21-6 to be tested under the action of the motor control signal is displayed through the motor rotating speed display circuit 21-8, and the performance of the motor to be tested is tested. The motor 21-6 to be detected is an entity motor, and the performance of the entity motor needs to be detected and is connected to the motor detection module of the invention at any time.
In one embodiment, as shown in fig. 4, the heater detection module includes:
a first heater input terminal 22-1 and a second heater input terminal 22-2 for receiving a heater driving signal of the computer board;
a heater signal generating circuit 22-3 for generating a heater control signal;
a heater input switch 22-4 having one end connected to one end of the heater signal generating circuit 22-3 and the other end connected to the first heater input terminal 22-1, and the other end of the heater signal generating circuit 22-3 connected to the second heater input terminal 22-2;
a heater indication circuit 22-5 having one end connected to the first heater input terminal 22-1 and the other end connected to the second heater input terminal 22-2, for indicating whether the test loop between the first heater input terminal 22-1 and the second heater input terminal 22-2 is normal;
a heater switch 22-6, one end of which is connected to the first heater input terminal 22-1, the other end of which is connected to one end of the heater to be tested 22-7 or one end of the dummy load heater 22-8, respectively, and the other end of the heater to be tested 22-7 is connected to the second heater input terminal 22-2; the other end of the dummy load heater 22-8 is connected to the second heater input terminal 22-2; the heater switch is used for inputting the heater driving signal of the computer board to the virtual load heater 22-8 or inputting the heater control signal to the heater 22-7 to be tested;
the working principle and the beneficial effects of the technical scheme are as follows:
the heater to be tested 22-7 may be a heating wire or rod.
Testing the heater driving signal of the computer board: when the heater switch 22-6 is switched to the virtual load heater 22-8 and the heater input switch 22-4 is in an off state, when the heater driving signal of the computer board is connected to the first heater input terminal 22-1 and the second heater input terminal 22-2, the heater driving signal acts on the virtual load heater 22-8, and the performance of the heater driving signal generating circuit of the computer board can be detected by detecting whether the virtual load heater 22-8 has current passing; when the heater driving signal is applied to the dummy load heater 22-8, the indicator lamp of the heater indicator circuit 22-5 is turned on. Wherein the dummy load heater 22-8 is a heater equivalent resistance provided on the system.
Testing the performance of the heater to be tested: connecting a heater to be tested according to a connecting line of the heater to be tested in the figure 3, switching a heater switch 22-6 to the heater to be tested 22-7, and closing a heater input switch 22-4, and then connecting a heater signal generating circuit 22-3 to a first heater input terminal 22-1 and a second heater input terminal 22-2, wherein a heater control signal acts on the heater to be tested 22-7, and whether the heater to be tested 22-7 is heated is checked, so that the performance of the heater to be tested 22-7 is detected. When the heater control signal is looped through the heater, the indicator light of the heater indicator circuit 22-5 is turned on. The heater to be detected is an entity heater and is a device which needs to be accessed to a heater detection module of the system to be detected for detection.
As shown in fig. 5, the fuel supply detection module includes:
the first nozzle input terminal 23-1 and the second nozzle input terminal 23-2 are used for accessing a nozzle driving signal of the computer board;
a nozzle signal generating circuit 23-3 for generating a nozzle control signal;
a nozzle input switch 23-4, one end of which is connected to one end of the nozzle signal generating circuit 23-3, the other end of which is connected to the first nozzle input terminal 23-1, and the other end of the nozzle signal generating circuit 23-3 is connected to the second nozzle input terminal 23-2;
a nozzle indication circuit 23-5 having one end connected to the first nozzle input terminal 23-1 and the other end connected to the second nozzle input terminal 23-2, for indicating whether the test loop between the first nozzle input terminal 23-1 and the second nozzle input terminal 23-2 is normal;
one end of the nozzle change-over switch 23-6 is connected with the first nozzle input terminal 23-1, the other end is respectively connected with one end of the nozzle to be tested 23-7 or one end of the virtual load nozzle 23-8, and the other end of the nozzle to be tested 23-7 is connected with the second nozzle input terminal 23-2; the other end of the dummy load nozzle 23-8 is connected to the second nozzle input terminal 23-2; the nozzle change-over switch is used for inputting a nozzle driving signal of the computer board to the dummy load nozzle 23-8 or for inputting a nozzle control signal to the nozzle 23-7 to be tested.
The working principle and the beneficial effects of the technical scheme are as follows:
the fuel supplier mainly controls the amount of fuel sprayed from the nozzle to control the supply of fuel.
Testing the nozzle driving signal of the computer board: when the nozzle switch 23-6 is switched to the virtual load nozzle 23-8 and the nozzle input switch 23-4 is in an off state, and a nozzle driving signal of the computer board is connected to the first nozzle input terminal 23-1 and the second nozzle input terminal 23-2, the nozzle driving signal acts on the virtual load nozzle 23-8, and the performance of the nozzle driving signal generating circuit of the computer board can be detected by detecting whether current passes through the virtual load nozzle 23-8; when the nozzle driving signal is applied to the dummy load nozzle 23-8, the indicator lamp of the nozzle indication circuit 23-5 is turned on. The dummy load nozzle 23-8 is a nozzle equivalent circuit provided in the present system.
Testing the performance of the fuel supply under test: the nozzle of the fuel supply to be tested is connected as shown in fig. 5; when the nozzle switch 23-6 is switched to the nozzle 23-7 to be tested and the nozzle input switch 23-4 is closed, the nozzle signal generating circuit 23-3 is connected to the first nozzle input terminal 23-1 and the second nozzle input terminal 23-2, the nozzle control signal acts on the nozzle 23-7 to be tested to check whether the nozzle 23-7 to be tested ejects liquid, and therefore the performance of the nozzle 23-7 to be tested is detected. When the nozzle control signal is looped through the nozzles, the indicator lamp of the nozzle indication circuit 23-5 is turned on. The nozzle to be tested is the nozzle of the fuel supplier to be tested, is a solid device, and is connected to the fuel supplier detection module of the system to be tested during detection to detect the performance of the fuel supplier detection module.
In one embodiment, as shown in fig. 6, the solenoid detection module includes:
the first electromagnetic valve input terminal 24-1 and the second electromagnetic valve input terminal 24-2 are used for accessing electromagnetic valve driving signals of the computer board;
the electromagnetic valve control signal generating circuit 24-3 is used for generating an electromagnetic valve control signal;
one end of the electromagnetic valve input switch 24-4 is connected with one end of the electromagnetic valve control signal generating circuit 24-3, the other end of the electromagnetic valve input switch is connected with the first electromagnetic valve input terminal 24-1, and the other end of the electromagnetic valve control signal generating circuit 24-3 is connected with the second electromagnetic valve input terminal 24-2;
an electromagnetic valve indicating circuit 24-5, one end of which is connected with the first electromagnetic valve input terminal 24-1 and the other end of which is connected with the second electromagnetic valve input terminal 24-2, for indicating whether the test loop between the first electromagnetic valve input terminal 24-1 and the second electromagnetic valve input terminal 24-2 is normal or not;
one end of the electromagnetic valve change-over switch 24-6 is connected with the first electromagnetic valve input terminal 24-1, the other end of the electromagnetic valve change-over switch is respectively connected with one end of the electromagnetic valve 24-7 to be tested or one end of the virtual load electromagnetic valve 24-8, and the other end of the electromagnetic valve 24-7 to be tested is connected with the second electromagnetic valve input terminal 24-2; the other end of the virtual load solenoid valve 24-8 is connected with a second solenoid valve input terminal 24-2; the electromagnetic valve switch is used for inputting an electromagnetic valve driving signal of the computer board to the virtual load electromagnetic valve 24-8 or inputting an electromagnetic valve control signal to the electromagnetic valve 24-7 to be tested;
the working principle and the beneficial effects of the technical scheme are as follows:
testing the electromagnetic valve driving signal of the computer board: when the electromagnetic valve change-over switch 24-6 is changed to the virtual load electromagnetic valve 24-8 and the electromagnetic valve input switch 24-4 is in an off state, when the electromagnetic valve driving signal of the computer board is connected to the first electromagnetic valve input terminal 24-1 and the second electromagnetic valve input terminal 24-2, the electromagnetic valve driving signal acts on the virtual load electromagnetic valve 24-8, and the performance of the electromagnetic valve driving signal generating circuit of the computer board can be detected by detecting whether current passes through the virtual load electromagnetic valve 24-8; when the solenoid valve drive signal is applied to the dummy load solenoid valve 24-8, the indicator lamp of the solenoid valve indicating circuit 24-5 is turned on. The virtual load solenoid valve 24-8 is a solenoid valve equivalent circuit arranged on the system.
Testing the performance of the electromagnetic valve to be tested: connecting the electromagnetic valve to be tested according to the graph shown in FIG. 6; when the electromagnetic valve change-over switch 24-6 is switched to the electromagnetic valve 24-7 to be tested and the electromagnetic valve input switch 24-4 is closed, the electromagnetic valve control signal generating circuit 24-3 is connected to the first electromagnetic valve input terminal 24-1 and the second electromagnetic valve input terminal 24-2, the electromagnetic valve control signal acts on the electromagnetic valve 24-7 to be tested to check whether the electromagnetic valve 24-7 to be tested is attracted or not, and therefore the performance of the electromagnetic valve 24-7 to be tested is detected. When the solenoid control signal is looped through the solenoid, the indicator light of the solenoid indicator circuit 24-5 is illuminated. The electromagnetic valve to be tested is a solid electromagnetic valve and is a device which is connected to the electromagnetic valve detection module of the system to be tested for detection when the performance of the electromagnetic valve to be tested is detected.
As shown in fig. 7, the relay detection module includes:
the first relay coil input terminal 25-1 and the second relay coil input terminal 25-2 are used for accessing a relay coil driving signal of the computer board;
a relay coil signal generating circuit 25-3 for generating a relay coil control signal;
a coil signal input switch 25-4 having one end connected to one end of the relay coil signal generating circuit 25-3 and the other end connected to the first relay coil input terminal 25-1; the other end of the relay coil signal generating circuit 25-3 is connected to the second relay coil input terminal 25-2;
a relay contact signal generating circuit 25-5 for generating a relay contact control signal;
one end of the contact signal input switch 25-6 is connected with the relay contact signal generating circuit 25-5, the other end of the contact signal input switch is connected with the first relay contact input terminal 25-9, and the other end of the relay contact signal generating circuit 25-5 is connected with the second relay contact input terminal 25-10;
a relay coil indicator light circuit 25-7, one end of which is connected with the first relay coil input terminal 25-1 and the other end of which is connected with the second relay coil input terminal 25-2, for indicating whether the test loop between the first relay coil input terminal 25-1 and the second relay coil input terminal 25-2 is normal or not;
a relay contact point indicating circuit, one end of which is connected with the first relay contact point input terminal 25-9, the other end of which is connected with the second relay contact point input terminal 25-10, and is used for indicating whether a test loop between the first relay contact point input terminal 25-9 and the second relay contact point input terminal 25-10 is normal or not;
one end of the relay output switch 25-11 is connected with the relay coil input terminal, the other end of the relay output switch is respectively connected with one end of the virtual load relay 25-13 or one end of the coil of the relay to be tested 25-12, the other end of the virtual load relay 25-13 is connected with the second relay coil input terminal 25-2, and the other end of the coil of the relay to be tested 25-12 is connected with the second relay coil input terminal 25-2; the relay output switch 25-11 is used for inputting a relay coil control signal to a coil of the relay or inputting a relay coil driving signal of a computer board to the virtual load relay 25-13;
the contacts of the relay under test 25-12 are connected at one end to the first relay contact input terminal 25-9 and at the other end to the second relay contact input terminal 25-10.
The working principle and the beneficial effects of the technical scheme are as follows:
testing a relay coil driving signal and a contact driving signal of a computer board: when the relay output switch 25-11 is switched to the virtual load relay, the coil signal input switch 25-4 is in an off state, and the contact signal input switch 25-6 is in an off state, the relay coil driving signal of the computer board is connected to the first relay coil input terminal 25-1 and the second relay coil input terminal 25-2; the relay coil driving signal acts on the virtual load relay 25-13, and the performance of the relay coil driving signal generating circuit of the computer board can be detected by detecting whether current passes through the virtual load relay 25-13; when the relay coil drive signal is applied to the virtual load relay 25-13, the indicator light of the relay coil indicator light circuit 25-7 is turned on. Among them, the dummy load relays 25 to 13 are relay equivalent circuits provided on the present system.
Testing the performance of the relay to be tested: connecting the relay to be tested according to the graph shown in figure 7; when the relay output switch 25-11 is switched to the relay 25-12 to be tested, the coil signal input switch 25-4 is closed and the contact signal input switch 25-6 is closed, the relay coil signal generating circuit 25-3 and the relay contact signal generating circuit 25-5 on the system are used for respectively inputting signals to two ends of a contact and two ends of a coil of the relay, whether the relay 25-12 to be tested is attracted or not is checked, and therefore the performance of the relay 25-12 to be tested is tested. When the coil control signal passes through the coil to form a loop, the indicator light of the relay coil indicator light circuit 25-7 is turned on, and when the contact control signal passes through the relay contact to form a loop, the indicator light of the relay contact indicator light circuit 25-8 is turned on. The relay to be tested is an entity relay and is a device which is connected into the relay detection module of the system to be tested for detection when the performance of the relay to be tested is detected.
In one embodiment, the sensor testing module 3 includes: the device comprises an oxygen content testing module, a pressure testing module, a current sensor testing module, a liquid level sensor testing module, a temperature sensor testing module and a K-type thermocouple testing module;
as shown in fig. 8, the oxygen content test module includes:
an oxygen sensor signal analog circuit 31-1 for generating an oxygen content sensor analog signal;
the oxygen sensor input signal change-over switch 31-2 is connected with the oxygen sensor signal analog circuit 31-1 and is used for connecting the analog signal of the oxygen content sensor to the data receiving end of the oxygen content detection module of the computer board;
the oxygen sensor control signal test circuit 31-4 is connected with the oxygen sensor heating control end of the oxygen content detection module and is used for testing a control signal output by the oxygen sensor heating control end;
the oxygen sensor heating work indicator lamp 31-5 is connected with the oxygen sensor control signal test circuit 31-4 and used for indicating whether the oxygen sensor heating control end works normally or not;
the oxygen sensor signal indicating lamp circuit 31-3 is connected with the oxygen sensor signal analog circuit 31-1 and is used for indicating whether the oxygen sensor signal analog circuit 31-1 works normally or not;
the working principle and the beneficial effects of the technical scheme are as follows:
the oxygen sensor signal analog circuit 31-1 generates an oxygen content sensor analog signal; the analog signal of the oxygen content sensor is input into the data receiving end of the oxygen content detection module of the computer board through the oxygen sensor input signal change-over switch 31-2, the oxygen content data is detected through the oxygen content detection module of the computer board, and the oxygen content data is compared with the numerical value represented by the analog signal, so that the performance of the oxygen content detection module for detecting the oxygen content is tested. The oxygen sensor control signal test circuit 31-4 outputs a control signal to the oxygen sensor heating control end of the computer board; thereby testing the heating control output performance of the oxygen content testing module.
In one embodiment, as shown in fig. 9, the pressure testing module includes:
a pressure signal simulation circuit 32-1 for generating a pressure sensor simulation signal;
the pressure signal input switch 32-2 is connected with the pressure signal simulation circuit 32-1 and is used for leading the simulation signal of the pressure sensor to the pressure signal output switch 32-3 when the pressure signal input switch 32-2 is in a closed state;
the pressure signal indicator light circuit 32-4 is connected with the pressure signal simulation circuit 32-1 and indicates whether the pressure signal simulation circuit 32-1 works normally or not;
one end of the pressure signal output switch 32-3 is connected with the pressure signal input switch 32-2, and the other end is connected with the pressure detection module of the computer board and used for leading the analog signal of the pressure sensor into the pressure detection module;
the working principle and the beneficial effects of the technical scheme are as follows:
the pressure signal simulation circuit 32-1 generates a pressure sensor simulation signal; the analog signal of the pressure sensor is input to the switch 32-2 through the pressure signal, the pressure signal outputs the diverter switch 32-3 to the pressure detection module of the computer board; the pressure detection module detects the pressure value of the analog signal of the pressure sensor, and the performance of the voltage test module of the computer board is tested by comparing the detected pressure value with the standard pressure corresponding to the analog signal of the pressure sensor.
As shown in fig. 10, the current sensor test module includes:
a current signal analog circuit 33-1 for generating a current analog signal;
the current sensor signal indicating lamp circuit 33-3 is connected with the current signal analog circuit 33-1 and is used for indicating whether the current signal analog circuit 33-1 works normally or not;
a current signal input switch 33-2, one end of which is connected with the current signal analog circuit 33-1 and the other end of which is connected with the current sensor detection module of the computer board, and which leads the current analog signal into the current sensor detection module;
the working principle and the beneficial effects of the technical scheme are as follows:
the current signal analog circuit 33-1 generates a current analog signal, and the current analog signal is input to a current sensor detection module of the computer board through a current signal input switch 33-2; the current sensor detection module detects a current value according to the current analog signal, and compares the detected current value with a standard current value corresponding to the current analog signal, so that the performance of the current sensor detection module of the computer board is tested.
The level sensor test module includes:
the liquid level signal analog circuit is used for generating a liquid level analog signal;
the liquid level signal indicating lamp circuit is connected with the liquid level signal analog circuit and is used for indicating whether the liquid level signal analog circuit works normally or not;
one end of the liquid level signal switch is connected with the liquid level signal analog circuit, and the other end of the liquid level signal switch is connected with the liquid level sensor module of the computer board and used for leading the liquid level analog signal into the liquid level sensor module;
the working principle and the beneficial effects of the technical scheme are as follows:
the liquid level signal analog circuit generates a liquid level analog signal; the liquid level analog signal is input into a liquid level sensor module of the computer board through a liquid level signal input switch; and the liquid level sensor module of the computer board detects a liquid level value according to the liquid level analog signal and compares the liquid level value with a standard liquid level value corresponding to the liquid level analog signal, so that the performance of the liquid level sensor module of the computer board is tested.
In one embodiment, a temperature sensor testing module includes:
the temperature signal simulation circuit is used for generating a temperature simulation signal;
one end of the temperature signal input switch is connected with the temperature signal analog circuit, and the other end of the temperature signal input switch is connected with the temperature sensor detection module of the computer board and used for leading the temperature analog signal into the temperature sensor detection module;
the working principle and the beneficial effects of the technical scheme are as follows:
the temperature signal simulation circuit generates a temperature simulation signal, and the temperature simulation signal is input into the temperature sensor detection module of the computer board through the temperature signal input switch; the temperature sensor of the computer board detects a temperature value according to the temperature analog signal, and compares the temperature value with a standard temperature value corresponding to the temperature analog signal, thereby testing the performance of the temperature sensor of the computer board.
The K-type thermocouple testing module comprises:
the K-type thermocouple signal simulation circuit is used for generating a K-type thermocouple simulation signal;
the K-type thermocouple signal output terminal is connected with a K-type thermocouple detection module in a sensor module of the computer board through a wire harness;
one end (switching end) of the K-type thermocouple signal switching switch is connected with the K-type thermocouple signal analog circuit, and the other end (fixed end) of the K-type thermocouple signal switching switch is connected with a K-type thermocouple signal output terminal and used for leading the K-type thermocouple analog signal into the K-type thermocouple detection module.
The working principle and the beneficial effects of the technical scheme are as follows:
the K-type thermocouple signal simulation circuit generates a K-type thermocouple simulation signal; the K-type thermocouple analog signal is transmitted to a K-type thermocouple detection module of the computer board through a K-type thermocouple signal transfer switch and a K-type thermocouple signal output terminal; the K-type thermocouple detection module detects the temperature according to the K-type thermocouple analog signal and compares the temperature with the standard temperature corresponding to the K-type thermocouple analog signal, so that the performance of the K-type thermocouple detection module is tested.
In one embodiment, the power supply module 7 includes:
a power supply circuit for converting alternating current to direct current;
the power switch controller is connected with the power circuit and is used for controlling the on-off of the electric energy;
the direct current air switch is connected with the power switch controller and used for arc extinguishing during circuit breaking;
the fuse circuit is connected with the direct current air switch and used for protecting the circuit in short circuit;
the voltage and current detection circuit is connected with the fuse circuit and is used for detecting the current and the voltage in the circuit;
and the voltage and current regulating circuit is connected with the voltage and current detection circuit and is used for regulating the current and the voltage in the circuit.
The working principle and the beneficial effects of the technical scheme are as follows:
the power supply module 7 comprises a power supply circuit, a power switch controller, a direct current air switch, a fuse circuit, a voltage and current detection circuit and a voltage and current regulation circuit which are connected in sequence; the fuse circuit protects the electronic devices on the circuit when the circuit is short-circuited; the voltage and current detection circuit and the voltage and current regulation circuit are matched to monitor and regulate the voltage and the current. The power supply circuit consists of a direct current 12V power supply circuit, a direct current 24V power supply circuit, a direct current 48V power supply circuit, a direct current 5V power supply circuit, a direct current 0-12V adjustable power supply circuit and a direct current 0-80V adjustable power supply circuit, and power is supplied to each electric circuit of the detection table.
In one embodiment, the fuel cell computer board multifunctional detection system further comprises a virtual oscilloscope and a logic analyzer; the virtual oscilloscope is in communication connection with the computer 12; the logic analyzer is in communication connection with the computer 12; the meter pen is connected to a virtual oscilloscope or a logic analyzer to detect and analyze the waveform or logic level of the computer board.
In one embodiment, as shown in fig. 11, the computer board multifunction testing system for fuel cell further comprises:
the wireless communication module 11 is arranged in the computer 12 and is used for the communication connection between the computer 12 and the server 15 and the mobile terminal 14 respectively;
a key 13 for receiving an operator operation start command and connected to the computer 12;
a plurality of mobile terminals 14 for receiving information input by an operator; the mobile terminal 14 is used by corresponding to an operator;
the server 15 is in communication connection with the computer 12 and used for storing operator information;
the computer 12 acquires an operation starting command through the key 13 and sends the operation starting command to the server 15 through the wireless communication module 11;
after receiving the operation start command, the server 15 sends an instruction for confirming the start to the mobile terminal 14;
after receiving the start confirmation instruction, the mobile terminal 14 displays the start confirmation instruction and receives feedback information of an operator on the start confirmation instruction; the feedback information includes: yes or no;
when the mobile terminal 14 receives the feedback information, the identification code of the mobile terminal 14 is sent to the server 15;
the server 15 inquires out the operator information stored corresponding to the identification code of the mobile terminal 14 according to the identification code of the mobile terminal 14 and sends the operator information and the terminal identification code to the computer 12 together;
the computer 12 receives the identification code of the mobile terminal 14 through the wireless communication module 11, and then binds with the mobile terminal 14; the computer 12 receives the operator information through the wireless communication module 11, generates an operation report according to the operator information, and sends the operation report to the mobile terminal 14 through the wireless communication module 11; the mobile terminal 14 receives and displays the operation report;
the mobile terminal 14 receives the information input by the operator on the operation report, and fills the operation report; and after the operation report is completely filled, the mobile terminal 14 sends the operation report to the computer 12 through the wireless communication module 11 for storage.
The working principle and the beneficial effects of the technical scheme are as follows:
the number of the mobile terminals 14 is a plurality, and the mobile terminals are used exclusively by operators; and the server 15 is in communication connection with the computer 12 and is used for storing the operator information. The operation is started by bidirectional selection of the key 13 and the mobile terminal 14; after the operation is started, the computer 12 automatically generates an operation report according to the operator information, so that the filling of the work report is quicker.
In one embodiment, the server 15 receives request information sent by the mobile terminal 14, where the request information includes a request, a terminal identifier of the mobile terminal 14, and location information; analyzing the request information according to a preset rule to obtain instruction information, wherein the instruction information comprises an instruction and a terminal identifier of the computer 12; when the instruction is to start operation, acquiring a terminal identifier of the computer 12 included in the instruction information, determining whether the computer 12 is bound with other mobile terminals 14 and whether the mobile terminal 14 is bound with other computers 12, when the computer 12 is not bound with other mobile terminals 14 and the mobile terminal 14 is not bound with other computers 12, binding the mobile terminal 14 as a first mobile terminal 14 with the computer 12, sending the terminal identifier of the first mobile terminal 14 to the computer 12, and sending the terminal identifier of the computer 12 to the first mobile terminal 14;
the first mobile terminal 14 establishes a communication connection with the computer 12 through the wireless communication module 11 according to the terminal identifier of the computer 12, sends stored operator information to the computer 12 through the wireless communication module 11, receives an operation report generated by the computer 12 based on the operator information through the wireless communication module 11, receives information input by an operator to fill the operation report, and sends the operation report to the computer 12 through the wireless communication module 11 for storage after the operation report is filled;
the analyzing the request information according to a preset rule to obtain instruction information, where the instruction information includes an instruction and a terminal identifier of the computer 12, and includes:
analyzing the positioning information, acquiring a detection platform corresponding to the position of the positioning information, and acquiring a terminal identification code of the computer 12 of the detection platform;
and analyzing the request to obtain an instruction.
The working principle and the beneficial effects of the technical scheme are as follows:
the detection platform operated by the operator is automatically identified through the position of the operator, and the computer 12 automatically connected to the detection platform is realized. After the operation is started, the computer 12 automatically generates an operation report according to the operator information, so that the filling of the work report is quicker.
In one embodiment, the step of generating the operation report according to the operator information after the computer 12 receives the operator information through the wireless communication module 11 is:
acquiring the content and the historical qualification rate of each detection item, sequencing the content of each detection item according to the sequence from small to large of the historical qualification rate, and then sequentially inputting the sequenced content of each detection item into the operation report;
and inputting the operator information into an operator information column in the operation report.
The working principle and the beneficial effects of the technical scheme are as follows:
the generated operation report preferentially detects the detection items with low qualification rate, and when the detection items are detected to be unqualified, the detection of subsequent detection items is not needed, so that the detection efficiency is ensured. For example, the detection items for detecting the computer board in the present invention include: the system comprises a computer board, a computer board driving chip, a computer board motor driving signal, a computer board heater driving signal, a computer board nozzle driving signal, a computer board electromagnetic valve driving signal, a computer board relay coil driving signal and a contact driving signal, an oxygen content detection module, a pressure test module, a current sensor detection module, a liquid level sensor module, a temperature sensor detection module and a K-type thermocouple detection module. The historical qualification rate of the detection items for detecting the computer board is checked, when the detection qualification rate of the heater driving signal of the computer board is the lowest, the content is placed to the first position of the operation report form for preferential detection, and when the detection is unqualified, other items do not need to be detected, so that the detection time is saved, and the detection efficiency is improved.
In one embodiment, in the process of performing the simulation test on the actuator driving signal of the computer board to be tested, in order to improve the accuracy of the simulation test on the actuator driving signal of the computer board to be tested, the actuator detection module needs to perform adaptive drying adjustment on the actuator driving signal of the computer board to be tested, where the adaptive drying adjustment includes the following steps:
a1, determining a noise stego coefficient of the actuator driving signal;
Figure GDA0003834546050000281
wherein λ 1 is the noise common secret coefficient, u is the load voltage of the computer board to be tested, r is the signal source internal resistance of the actuator driving signal, Q is the preset electronic charge, i is the load current of the computer board to be tested, D is the system equivalent noise bandwidth of the computer board to be tested, f is the preset noise control constant, and T is the temperature of the environment where the computer board to be tested is located,
f is preset at 1.47 x 10 -23 The preset value of J/K, Q is 1.6 x 10 -19 C。
A2, acquiring the actuator driving signal within a preset time as a discrimination signal, detecting the current actuator driving signal as an actual signal, and determining the noise intensity coefficient of the actual signal by using the discrimination signal;
Figure GDA0003834546050000291
wherein λ 2 is a noise intensity coefficient, and E (Mx) is the determinationExpectation of other signal, E (Mx) 2 ) Exp () is an exponential function with a natural constant e as the base, expected for the square of the decision signal, x is the actual signal;
a3, acquiring an actuator driving signal after adaptive drying adjustment;
Figure GDA0003834546050000292
wherein S is an actuator driving signal after adaptive drying adjustment, A is the fluctuation period of the discrimination signal,
Figure GDA0003834546050000293
in order to have a damping coefficient of the vibration,
Figure GDA0003834546050000294
the angular frequency of the discrimination signal is obtained;
and A4, adjusting the actuator driving signal subjected to the simulation test into an actuator driving signal subjected to self-adaptive drying adjustment.
The working principle and the beneficial effects of the technical scheme are as follows:
the technology can be used for adjusting the actuator driving signal for carrying out the simulation test, thereby eliminating the noise interference in the actuator driving signal for carrying out the simulation test, and making the actuator driving signal for carrying out the simulation test more consistent with the actuator driving signal of the computer board to be detected, thereby improving the accuracy of the actuator driving signal of the computer board to be detected in the simulation test.
The present invention also provides a method for detecting multiple functions of a computer board of a fuel cell, as shown in fig. 12, including:
step 1: connecting a computer board to be tested to the multifunctional detection system of the fuel cell computer board according to any one of claims 1 to 9 through a wire harness;
step 2: starting a power supply module, and carrying out program burning or program debugging on a drive chip of the computer board to be tested through the computer board detection module;
and step 3: the sensor module to be tested is subjected to analog test by the sensor test module for simulating and outputting a sensor signal, and the result detected by the sensor module to be tested is compared with a standard result, so that the performance of the sensor module to be tested is tested;
and 4, step 4: and testing the driving performance of the actuator of the computer board to be tested by observing the action of the actuator detection module after receiving the actuator driving signal of the computer board to be tested.
The working principle and the beneficial effects of the technical scheme are as follows:
the system comprises a computer board to be tested, a sensor testing module, a connecting wire harness, an actuator driving port and an actuator detecting module, wherein the driving chip of the computer board to be tested is connected with the computer board detecting module through the connecting wire harness; connecting a power supply input port of the computer board to be tested with a power supply module through a connecting wire harness;
the computer board to be tested is connected to the fuel cell computer version multifunctional detection system through a connecting wire harness, and a program in a driving chip 2 of the computer board to be tested is burned or debugged through a computer board detection module 1; the sensor testing module 3 outputs an analog sensor signal to perform analog testing on a sensor module 4 to be tested on a computer board to be tested; and testing the driving performance of the actuator of the computer board to be tested by observing the action of the actuator detection module after receiving the actuator driving signal of the computer board to be tested.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. A fuel cell computer board multifunctional detection system is characterized by comprising:
the computer board detection module is connected with the driving chip of the computer board to be detected through a connecting wire harness and is used for carrying out program burning or program debugging on the driving chip of the computer board to be detected;
the sensor testing module is connected with the sensor module to be tested on the computer board to be tested through a connecting wire harness and is used for simulating and outputting a sensor signal to perform simulation test on the sensor module to be tested;
the executor detection module is connected with an executor driving port of the computer board to be tested through a connecting wire harness and is used for carrying out simulation test on a driving signal of the executor driving port;
the power supply module is respectively and electrically connected with the computer board detection module, the sensor test module, the power supply input port of the computer board to be tested and the actuator detection module, and provides electric energy for the computer board detection module, the sensor test module, the computer board to be tested and the actuator detection module;
wherein the sensor testing module comprises: the device comprises an oxygen content testing module, a pressure testing module, a current sensor testing module, a liquid level sensor testing module, a temperature sensor testing module and a K-type thermocouple testing module;
the oxygen content testing module comprises:
the oxygen sensor signal simulation circuit is used for generating an oxygen content sensor simulation signal;
the oxygen sensor input signal switch is connected with the oxygen sensor signal analog circuit and used for connecting the oxygen content sensor analog signal to a data receiving end of an oxygen content detection module of the computer board;
the oxygen sensor control signal test circuit is connected with the oxygen sensor heating control end of the oxygen content detection module and is used for testing the control signal output by the oxygen sensor heating control end;
the oxygen sensor heating work indicator light is connected with the oxygen sensor control signal test circuit and used for indicating whether the oxygen sensor heating control end works normally or not;
the oxygen sensor signal indicating lamp circuit is connected with the oxygen sensor signal analog circuit and is used for indicating whether the oxygen sensor signal analog circuit works normally or not;
the pressure test module includes:
the pressure signal simulation circuit is used for generating a pressure sensor simulation signal;
the pressure signal input switch is connected with the pressure signal simulation circuit and used for transmitting the pressure sensor simulation signal to the pressure signal output change-over switch when the pressure signal input switch is in a closed state;
the pressure signal indicating lamp circuit is connected with the pressure signal simulation circuit and indicates whether the pressure signal simulation circuit works normally or not;
one end of the pressure signal output changeover switch is connected with the pressure signal input switch, and the other end of the pressure signal output changeover switch is connected with the pressure detection module of the computer board and used for leading the analog signal of the pressure sensor into the pressure detection module;
the current sensor testing module includes:
the current signal simulation circuit is used for generating a current simulation signal;
the current sensor signal indicating lamp circuit is connected with the current signal analog circuit and is used for indicating whether the current signal analog circuit works normally or not;
one end of the current signal input switch is connected with the current signal analog circuit, and the other end of the current signal input switch is connected with the current sensor detection module of the computer board, so that the current analog signal is led into the current sensor detection module;
the level sensor test module includes:
the liquid level signal analog circuit is used for generating a liquid level analog signal;
the liquid level signal indicating lamp circuit is connected with the liquid level signal analog circuit and is used for indicating whether the liquid level signal analog circuit works normally or not;
one end of the liquid level signal switch is connected with the liquid level signal analog circuit, and the other end of the liquid level signal switch is connected with the liquid level sensor module of the computer board and used for leading the liquid level analog signal into the liquid level sensor module;
the temperature sensor testing module includes:
the temperature signal simulation circuit is used for generating a temperature simulation signal;
one end of the temperature signal input switch is connected with the temperature signal simulation circuit, and the other end of the temperature signal input switch is connected with the temperature sensor detection module of the computer board and used for leading the temperature simulation signal into the temperature sensor detection module;
the K-type thermocouple testing module comprises:
the K-type thermocouple signal simulation circuit is used for generating a K-type thermocouple simulation signal;
the K-type thermocouple signal output terminal is connected with a K-type thermocouple detection module in a sensor module of the computer board through a wire harness;
and one end of the K-type thermocouple signal change-over switch is connected with the K-type thermocouple signal analog circuit, and the other end of the K-type thermocouple signal change-over switch is connected with a K-type thermocouple detection module of the computer board and used for leading the K-type thermocouple analog signal into the K-type thermocouple detection module.
2. The computer board multifunction test system of fuel cell of claim 1, wherein said computer board test module comprises:
the communication module is connected with the drive chip of the computer board and is used for carrying out data transmission in the process of program burning or program debugging on the drive chip;
and the computer is connected with the communication module, communicates with the drive chip of the computer board through the communication module, and adopts a program in the computer to burn or debug the program of the computer board.
3. The computer board multifunctional detection system for fuel cells as claimed in claim 1, wherein the actuator detection module is further configured to connect with the actuator under test through a connection harness, and to perform an analog test on the externally connected actuator under test.
4. The fuel cell computer board multifunction test system of claim 1 or 3, wherein said actuator test module comprises: the system comprises a motor detection module, a heater detection module, a fuel supplier detection module, an electromagnetic valve detection module and a relay detection module;
the motor detection module includes:
the motor control signal generating circuit is used for generating a motor control signal;
the motor input terminals are used for accessing motor driving signals of the computer board to be tested or motor control signals generated by the motor control signal generating circuit;
one end of each motor input switch is connected with the motor control signal generating circuit, and the other end of each motor input switch is connected with the motor input terminal in a one-to-one correspondence manner and used for accessing the motor control signal to the motor input terminal when the motor input switches are closed;
the fixed ends of the motor change-over switches are connected with the motor input terminal, and the change-over ends of the motor change-over switches are respectively connected with the virtual load motor and the motor to be tested and used for switching between the virtual load motor and the motor to be tested;
one end of each motor indicator lamp circuit is connected with the motor input terminal in a one-to-one correspondence mode, and the other end of each motor indicator lamp circuit is grounded and used for indicating whether the motor driving signal is connected to the motor input terminal or not or indicating whether the motor control signal is connected to the motor input terminal or not;
the motor rotating speed display circuit is connected with the motor to be tested and used for receiving and displaying the rotating speed of the motor to be tested fed back by the motor to be tested;
the motor control signal display circuit is connected with the motor control signal generating circuit and is used for displaying the motor control signal;
the motor input switch, the motor input terminal, the motor change-over switch and the motor indicator light circuit are in one-to-one correspondence;
the heater detection module includes:
the first heater input terminal and the second heater input terminal are used for accessing a heater driving signal of the computer board;
a heater signal generating circuit for generating a heater control signal;
a heater input switch having one end connected to one end of the heater signal generating circuit and the other end connected to the first heater input terminal, the other end of the heater signal generating circuit being connected to the second heater input terminal;
a heater indicating circuit, one end of which is connected with the first heater input terminal and the other end of which is connected with the second heater input terminal, for indicating whether a test loop between the first heater input terminal and the second heater input terminal is normal;
one end of the heater switch is connected with the first heater input terminal, the other end of the heater switch is respectively connected with one end of the heater to be tested or one end of the virtual load heater, and the other end of the heater to be tested is connected with the second heater input terminal; the other end of the dummy load heater is connected to the second heater input terminal; the heater switch is used for inputting a heater driving signal of a computer board to the virtual load heater or inputting a heater control signal to a heater to be tested;
the fuel supply detection module includes:
the first nozzle input terminal and the second nozzle input terminal are used for accessing a nozzle driving signal of the computer board;
a nozzle signal generating circuit for generating a nozzle control signal;
a nozzle input switch, one end of which is connected with one end of the nozzle signal generating circuit, the other end of which is connected with the first nozzle input terminal, and the other end of which is connected with the second nozzle input terminal;
a nozzle indicating circuit, one end of which is connected with the first nozzle input terminal and the other end of which is connected with the second nozzle input terminal, for indicating whether a test loop between the first nozzle input terminal and the second nozzle input terminal is normal;
a nozzle change-over switch, one end of which is connected with the first nozzle input terminal, the other end of which is respectively connected with one end of the nozzle to be tested or one end of the virtual load nozzle, and the other end of the nozzle to be tested is connected with the second nozzle input terminal; the other end of the dummy load nozzle is connected to the second nozzle input terminal; the nozzle change-over switch is used for inputting a nozzle driving signal of a computer board to the virtual load nozzle or inputting a nozzle control signal to the nozzle to be tested;
the solenoid valve detection module includes:
the first electromagnetic valve input terminal and the second electromagnetic valve input terminal are used for accessing electromagnetic valve driving signals of the computer board;
the electromagnetic valve control signal generating circuit is used for generating an electromagnetic valve control signal;
one end of the electromagnetic valve input switch is connected with one end of the electromagnetic valve control signal generating circuit, the other end of the electromagnetic valve input switch is connected with the first electromagnetic valve input terminal, and the other end of the electromagnetic valve control signal generating circuit is connected with the second electromagnetic valve input terminal;
the electromagnetic valve indicating circuit is connected with the first electromagnetic valve input terminal at one end and the second electromagnetic valve input terminal at the other end and used for indicating whether a test loop between the first electromagnetic valve input terminal and the second electromagnetic valve input terminal is normal or not;
one end of the electromagnetic valve change-over switch is connected with the first electromagnetic valve input terminal, the other end of the electromagnetic valve change-over switch is respectively connected with one end of the electromagnetic valve to be tested or one end of the virtual load electromagnetic valve, and the other end of the electromagnetic valve to be tested is connected with the second electromagnetic valve input terminal; the other end of the virtual load electromagnetic valve is connected with the input terminal of the second electromagnetic valve; the electromagnetic valve change-over switch is used for inputting an electromagnetic valve driving signal of a computer board to the virtual load electromagnetic valve or inputting an electromagnetic valve control signal to the electromagnetic valve to be tested;
the relay detection module includes:
the first relay coil input terminal and the second relay coil input terminal are used for accessing a relay coil driving signal of the computer board;
the relay coil signal generating circuit is used for generating a relay coil control signal;
a coil signal input switch, one end of which is connected with one end of the relay coil signal generating circuit and the other end of which is connected with the first relay coil input terminal; the other end of the relay coil signal generating circuit is connected with the second relay coil input terminal;
the relay contact signal generating circuit is used for generating a relay contact control signal;
one end of the contact signal input switch is connected with the relay contact signal generating circuit, the other end of the contact signal input switch is connected with the first relay contact input terminal, and the other end of the relay contact signal generating circuit is connected with the second relay contact input terminal;
the relay coil indicating lamp circuit is connected with the first relay coil input terminal at one end and connected with the second relay coil input terminal at the other end and used for indicating whether a test loop between the first relay coil input terminal and the second relay coil input terminal is normal or not;
the relay contact point indicating circuit is connected with the first relay contact point input terminal at one end and connected with the second relay contact point input terminal at the other end and used for indicating whether a test loop between the first relay contact point input terminal and the second relay contact point input terminal is normal or not;
one end of the relay output selector switch is connected with the relay coil input terminal, the other end of the relay output selector switch is respectively connected with one end of a virtual load relay or one end of a coil of a relay to be tested, the other end of the virtual load relay is connected to the second relay coil input terminal, and the other end of the coil of the relay to be tested is connected to the second relay coil input terminal; the relay output selector switch is used for inputting a relay coil control signal to a coil of the relay or inputting a relay coil driving signal of the computer board to the virtual load relay;
and one end of the contact of the relay to be tested is connected to the first relay contact input terminal, and the other end of the contact of the relay to be tested is connected to the second relay contact input terminal.
5. The fuel cell computer board multifunction test system of claim 1, wherein said power module comprises:
a power supply circuit for converting alternating current to direct current;
the power switch controller is connected with the power circuit and is used for controlling the on-off of the electric energy;
the direct current air switch is connected with the power switch controller and used for arc extinguishing during circuit breaking;
the fuse circuit is connected with the direct current air switch and used for protecting the circuit during short circuit;
the voltage and current detection circuit is connected with the fuse circuit and is used for detecting the current and the voltage in the circuit;
and the voltage and current regulating circuit is connected with the voltage and current detection circuit and is used for regulating the current and the voltage in the circuit.
6. The fuel cell computer board multifunction test system of claim 2, further comprising:
the wireless communication module is arranged in the computer and is used for the communication connection between the computer and the server and the mobile terminal respectively;
the key is used for receiving an operator operation starting command and is connected with the computer;
the mobile terminals are used for receiving information input by an operator; the mobile terminals are used in a one-to-one correspondence manner with operators;
the server is in communication connection with the computer and is used for storing operator information;
the computer acquires an operation starting command through the key and sends the operation starting command to the server through the wireless communication module;
after receiving the operation starting command, the server sends a starting confirmation instruction to the mobile terminal;
after receiving the start confirmation instruction, the mobile terminal displays the start confirmation instruction and receives feedback information of an operator on the start confirmation instruction; the feedback information includes: yes or no;
when the mobile terminal receives the feedback information, the identification code of the mobile terminal is sent to the server;
the server inquires out operator information which is stored corresponding to the mobile terminal identification code according to the mobile terminal identification code and sends the operator information and the terminal identification code to the computer together;
the computer is bound with the mobile terminal after receiving the identification code of the mobile terminal through the wireless communication module; the computer receives the operator information through the wireless communication module, generates an operation report according to the operator information and sends the operation report to the mobile terminal through the wireless communication module; the mobile terminal receives and displays the operation report;
the mobile terminal receives the information input by the operator on the operation report and fills the operation report; and the mobile terminal sends the operation report to the computer for storage through the wireless communication module after the operation report is completely filled.
7. The computer board multifunction test system of fuel cell as claimed in claim 6,
the server receives request information sent by the mobile terminal, wherein the request information comprises a request, a terminal identifier of the mobile terminal and positioning information; analyzing the request information according to a preset rule to obtain instruction information, wherein the instruction information comprises an instruction and a terminal identifier of a computer; when the instruction is to start operation, acquiring a terminal identifier of a computer included in the instruction information, judging whether the computer is bound with other mobile terminals and whether the mobile terminal is bound with other computers, when the computer is not bound with other mobile terminals and the mobile terminal is not bound with other computers, binding the mobile terminal serving as a first mobile terminal with the computer, sending the terminal identifier of the first mobile terminal to the computer, and sending the terminal identifier of the computer to the first mobile terminal;
the first mobile terminal establishes communication connection with the computer through the wireless communication module according to a terminal identifier of the computer, sends stored operator information to the computer through the wireless communication module, receives an operation report generated by the computer based on the operator information through the wireless communication module, receives information input by an operator, fills the operation report, and sends the operation report to the computer through the wireless communication module for storage after the operation report is filled;
the method for analyzing the request information according to the preset rule to obtain the instruction information, wherein the instruction information comprises an instruction and a terminal identifier of a computer, and comprises the following steps:
analyzing the positioning information, acquiring a detection platform corresponding to the position of the positioning information, and acquiring a terminal identification code of a computer of the detection platform;
and analyzing the request to obtain an instruction.
8. The fuel cell computer board multifunction test system of claim 1,
the executor detection module needs to perform self-adaptive denoising adjustment on the executor driving signal subjected to the simulation test in order to improve the accuracy of the executor driving signal of the computer board to be tested in the simulation test in the process of performing the simulation test on the executor driving signal of the computer board to be tested, wherein the self-adaptive denoising adjustment comprises the following steps:
a1, determining a noise stego coefficient of the actuator driving signal;
Figure FDA0003834546040000091
wherein λ 1 is the noise common secret coefficient, u is the load voltage of the computer board to be tested, r is the signal source internal resistance of the actuator driving signal, Q is the preset electronic charge, i is the load current of the computer board to be tested, D is the system equivalent noise bandwidth of the computer board to be tested, f is the preset noise control constant, and T is the temperature of the environment where the computer board to be tested is located,
a2, acquiring the actuator driving signal within a preset time as a discrimination signal, detecting the current actuator driving signal as an actual signal, and determining the noise intensity coefficient of the actual signal by using the discrimination signal;
Figure FDA0003834546040000101
where λ 2 is a noise intensity coefficient, E (Mx) is the expectation of the discrimination signal, and E (Mx) 2 ) Exp () is an exponential function with a natural constant e as the base, x is the actual signal, which is the expectation of the square of the discrimination signal;
a3, acquiring an actuator driving signal after adaptive denoising adjustment;
Figure FDA0003834546040000102
wherein S is an actuator driving signal after adaptive denoising adjustment, A is a fluctuation period of the discrimination signal,
Figure FDA0003834546040000103
in order to be a damping coefficient of the damping,
Figure FDA0003834546040000104
the angular frequency of the discrimination signal;
and A4, adjusting the actuator driving signal subjected to the simulation test into an actuator driving signal subjected to adaptive denoising adjustment.
9. A fuel cell computer board multifunctional detection method is characterized by comprising the following steps:
step 1: connecting a computer board to be tested to the computer board multifunctional detection system of the fuel cell according to any one of claims 1 to 8 through a wire harness;
step 2: starting a power supply module, and carrying out program burning or program debugging on a drive chip of the computer board to be tested through the computer board detection module;
and step 3: the sensor testing module simulates and outputs a sensor signal to perform simulation testing on the sensor module to be tested, and compares a result detected by the sensor module to be tested with a standard result, so that the performance of the sensor module to be tested is tested;
and 4, step 4: and testing the driving performance of the actuator of the computer board to be tested by observing the action of the actuator detection module after receiving the actuator driving signal of the computer board to be tested.
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