99results about How to "Improve test security" patented technology

The invention discloses an automatic driving test vehicle and a remote control system and method thereof. The automatic driving test vehicle comprises a housing, a power chassis connected to the bottom of the housing, and vehicle environment sensing equipment, wherein the vehicle environment sensing equipment comprises a positioning device, a video acquisition device, an environment sensing device, a bus controller and a vehicle processor; the system comprises the automatic driving test vehicle, a communication base station, a remote control center and a driving simulator; the remote control center receives the running data of the test vehicle, the relative position information of the test vehicle and the vehicle under test, and the running status data of the vehicle under test, performs multifaceted fusion and targeted processing on the received data to achieve the monitoring that whether the running data of the test vehicle is normal, receives the status data that the user manually operates the driving simulator uploaded by the driving simulator or receives the driving track data input by the user, analyzes the data to generate a control instruction, and sends the control instruction to the automatic test vehicle through via the communication base station.

The invention discloses a low-voltage test circuit and a low-voltage test method for an initiating explosive device. The method comprises the following steps of: (1) disconnecting a high-voltage control loop of the initiating explosive device, and applying test excitation voltage to the low-voltage test circuit; (2) converting low-voltage differential signals on a resistor R1 and a resistor R2 of a double-bridge wire initiating explosive device into a single-ended output signal by using an instrument amplifier, amplifying, outputting to a filter, filtering the signal by using the filter, and outputting comparison voltage Ub; (3) amplifying low-voltage differential signals on a detection resistor R5, a detection resistor R6 and a detection resistor R7, converting and filtering to generate three reference comparison voltages, namely U0.3, U0.8 and U2.0; (4) comparing the Ub with the U0.3, the U0.8 and the U2.0 by using three comparators respectively; and (5) determining the current state of the initiating explosive device through a comparison result. The low-voltage test circuit is simple and reliable, a small number of elements are used, a test loop is not required to be charged with accurate current, the circuit does not have parameters required to be adjusted, and the judgment method is simple.

The invention relates to the technical field of Internet of Vehicles, and particularly discloses a V2X function application test method based on vehicle-road collaboration, which comprises the following steps: acquiring scene setting information; receiving motion state information of the tested vehicle; calculating the motion state of the auxiliary test vehicle at the next sampling moment according to the motion state information of the auxiliary test vehicle at the current sampling moment, the model parameters of the auxiliary test vehicle and the motion state information of the tested vehicle; carrying out framing operation on the motion state information of the auxiliary test vehicle at the next sampling moment according to the V2X communication protocol; and sending the motion state information of the auxiliary test vehicle completing the framing operation at the next sampling moment to the tested vehicle, and receiving the V2X function test information of the tested vehicle. The invention further discloses a V2X function application testing device and system based on vehicle-road cooperation. According to the V2X function application testing method based on vehicle-road cooperation, the implementation accuracy of the test case and the effectiveness of the test data are improved.

The invention provides a test track dynamic planning method and system for an automatic driving test vehicle, and the method comprises the steps: carrying out the information extraction of an obtainedhigh-precision map of a test field, dividing the map into different types of road segments, and building a test road segment library; based on the information of the test road section library, establishing a basic test library according to test rules, and establishing a danger library and an extreme library according to danger and accident videos screened out in traffic monitoring; and determining a test item by the test vehicle test unit according to the test level, generating a global test path, driving the test vehicle test path according to the global test path, and performing local pathadjustment through a loaded sensing module. According to the technical scheme, through track splicing, the test process is coherent and smooth, the test is efficient, the test result is more systematic and accurate, and the labor and time cost is reduced. Different tested vehicles are tested in a graded manner, and the obtained test data is more valuable. And the test process does not need workersto directly intervene in the test site, so that the test safety is higher.

The present disclosure provides an autonomous vehicle site test method and apparatus, a device and a readable medium. The method comprises: in a site test, collecting state information of the autonomous vehicle in real time; according to the state information of the autonomous vehicle and a pre-obtained test demand, obtaining deployment information of a simulated obstacle needed in the test, wherein the deployment information of the simulated obstacle includes a simulated obstacle class, a deployment location of the simulated obstacle and a predetermined action of the simulated obstacle; according to the deployment information of the simulated obstacle, controlling the simulated obstacle corresponding to the simulated obstacle class to perform a predetermined action at the deployment location, to test the autonomous vehicle's response performance to the deployed simulated obstacle.

The invention provides a general portable satellite power supply and distribution system equivalent device. The equivalent device comprises a machine case, a machine case cover, a touch screen, an ARM board, a simulation board card, an adapting board card, an SD card, an aviation plug adapting cable, an interface expanding board, an internal battery, a power plug and a power adaptor. The equivalent device generates a control command through the touch screen to transmit the control command to the ARM board card, the ARM board card generates an equivalent configuration command, the simulation board card simulates interfaces and functions of a satellite power supply and distribution system, and a ground power supply and distribution test device generates an output signal and transmits the output signal to the ARM board. The ARM board judges whether the ground power supply and distribution test device works normally or not, the interface expanding board is connected with the adapting board card, an external power source is connected with the power plug through the power adaptor, and the internal battery and the external power source back up each other. By means of the general portable satellite power supply and distribution system equivalent device, generalization, miniaturization and digitization of the satellite power supply and distribution system equivalent device are achieved, the design concept of the general portable tool provides a train of thought for future ground test device research and development.

The invention discloses a switching device and method applied to safety measurement of multipath initiating explosive devices. Each set of measurement paths comprises an address latch and two analog switches, wherein the two analog switches are M:1 short-pole multi-throw switches and are respectively used for controlling breakover switching of a constant-current-source driving circuit and a voltage detection circuit. During each-time switching, the (N+1)th set of circuit on-load measurement paths is firstly connected, initiating explosive device paths required to be measured are connected after breakover is confirmed, and finally the (N+1)th set of circuit on-load measurement paths is disconnected and confirmed after the breakover is confirmed again, so that the power glitch produced by the constant-current-source driving circuit at the moment of connection and disconnection of the analog switches is eliminated, and safety measurement of the multipath initiating explosive devices is achieved. By means of the switching device and method, a constant current source is always kept stable, and the purpose of improving the safety of the initiating explosive devices is achieved. The switching device and method can measure loads of M*N paths in one time, and the switching method is high in safety, simple and quick.

The invention provides a field testing method and system for an unmanned vehicle, equipment and a readable medium. The method comprises: an unmanned vehicle receives at least two first ultrasonic signals sent by a first ultrasonic receiver installed at the unmanned vehicle and receiving times of all first ultrasonic signals, wherein the at least two first ultrasonic signals are sent by at least two ultrasonic transmitters arranged in a first ultrasonic receiver receiving testing field; according to the received at least two first ultrasonic signals, the receiving times of all first ultrasonic signals, and locations of all ultrasonic transmitters, driving information of the unmanned vehicle is calculated; and the calculated driving information and self-tested driving information are sent to a testing server and thus the testing server detects a self-testing performance of the unmanned vehicle based on the calculated driving information and self-tested driving information. Therefore, defects in the prior art can be overcome; and the self-testing performance of the unmanned vehicle can be detected.

The invention relates to the technical field related to a series capacitor compensation device, in particular to a measurement method of the voltage division ratio of a voltage-sharing capacitor for a spark gap of the series capacitor compensation device. The method comprises the steps of disconnecting the electrical connection between a first capacitor branch circuit and a low-voltage end and / or disconnecting the electrical connection between a second capacitor branch circuit and a high-voltage end; respectively applying the same test voltage at the two ends of the first capacitor branch circuit and the second capacitor branch circuit, and controlling the frequency of the test voltage to be more than or equal to 50Hz; measuring the current of the first capacitor branch circuit to obtain first capacitor branch circuit current, and measuring the current of the second capacitor branch circuit to obtain the second capacitor branch circuit current; taking the inverse ratio of the current ratio of the first capacitor branch circuit current and the second capacitor branch circuit current as the voltage division ratio of the first capacitor branch circuit and the second capacitor branch circuit. After the method capable of improving the test frequency is adopted, the test voltage can be reduced to be lower than the safe voltage of 50V under the condition of meeting the requirements of test current, so that the test safety is improved, and the measurement method has very high power frequency interference resistance.

The invention discloses a testing method and device, a storage medium and electronic equipment for electronic equipment. The testing method includes: obtaining entry instructions of test modes; according to the entry instructions of the test modes, providing password input interfaces to users and obtaining entered passwords of the users through the password input interfaces; according to the passwords and equipment identifications of the electronic equipment, carrying out decryption operations; when the decryption is successful, controlling the electronic equipment to enter the test modes fortesting, thereby being capable of preventing criminals from entering the test modes at will to obtain equipment parameters and improving test security. The method is simple and strong in practicality.

The invention discloses a mobile detection device for on-site detection of a DC charging pile. The mobile detection device comprises an upper computer, a DC interface simulation device, a charging simulation device and a data acquisition device, wherein the upper computer is used for issuing a control instruction to the DC interface simulation device and the charging simulation device, receiving and analyzing test parameters of a tested charging pile uploaded by the data acquisition device; the charging simulation device is used for simulating a charging process and regulating output current of the tested charging pile according to the control instruction; the DC interface simulation device is used for simulating various abnormal charging conditions according to the control instruction; the data acquisition device is used for acquiring the test parameters of the tested charging pile under normal charging conditions and the abnormal charging conditions and uploading the test parametersto the upper computer. The mobile detection device can effectively reduce workload of test workers, improve accuracy and traceability of test data and guarantee test safety.

The invention provides a voice test audio synthesis method for a vehicle machine, a voice testing audio, a voice testing method, a synthesis device, electronic equipment and a computer readable storage medium. The voice test audio synthesis method for the vehicle machine comprises the steps: S1, for different vehicle models, respectively obtaining multiple human voice corpora and multiple noise corpora required by voice test to form multiple voice audios and noise audios; S2, combining the voice audio and the noise audio for each vehicle type according to a test scene; and S3, performing audiomixing based on the combined voice audio and noise so as to obtain voice test audios of various vehicle models in the test scene. According to the voice test audio synthesis method for the vehicle machine, the audio of a real vehicle can be simulated, the voice test is facilitated, and the voice test efficiency is improved.

This disclosure provides an unmanned simulation test system and method and a storage medium. The unmanned simulation test system comprises: a driving simulator, used for simulating an unmanned deviceto drive in a simulation environment; a decision determining module, used for determining a first target control operation that the driving simulator needs to execute in the simulation environment; acontrol module, used for controlling the driving simulator to execute the first target control operation; and a first test module, used for testing whether execution of the first target control operation by the driving simulator is a control operation corresponding to normal driving.

The invention provides a signal conditioning device for a subarray-level digital T / R assembly based on transmitting-receiving separation. When a transmitting test is conducted, each digital T / R assembly is connected to a first-stage switching network, and construction of a test channel required by an assembly transmitting test is realized in the first-stage switching network; a second-stage switching network realizes distribution of test resources, the test resources in a system are switched to any one first-stage switching network through a switch, and a test for transmitting parameters is completed by using an instrument resource configured by the system after transmitting signal conditioning of the two-stage switching network; and when a receiving test is conducted, a switching network is not introduced any more, excitation signals outputted by a signal generator and calibration noises outputted by a noise source get into each digital T / R assembly through a single-pole double-throw switch and a two-stage power divider based on a hierarchical power division framework. According to the invention, a lot of microwave components are saved, the system integration difficulty is low, the engineering realization feasibility is high, and the cost is low.

The invention discloses a test system and method for a vehicle body central control unit. The test system of the vehicle body central control unit comprises a rack, a cabinet, and an upper computer; the rack is provided with a vehicle body central control unit to be test; the cabinet is connected with the rack; the cabinet is provided with a test board card; the test board card includes an input interface and an output interface; the upper computer stores a test program; the test program is executed in the upper computer, so that the upper computer transmits a test command to the input interface of the test board card; the cabinet sends test signals to the vehicle body central control unit through the output interface according to the test command so as to test the vehicle body central control unit and receives the test result of the vehicle body central control unit so as to generate a test report based on the test result. With the test system and method for the vehicle body central control unit of the invention adopted, the automatic test of the vehicle body central control unit can be realized, test efficiency can be improved, the repeated workload of personnel can be decreased,and test costs can be saved.

The invention discloses a method and a system for judging the operating state of a transformer harmonic load. The implementation steps of the method include: acquiring an acoustic signal of a transformer to be detected; extracting independent characteristic parameters according to the acoustic signal of the transformer to be detected; inputting the independent characteristic parameters into the trained machine learning model; obtaining the current harmonic load operating state of the transformer to be detected, wherein the machine learning model is trained to include a mapping relationship between the independent feature parameters and harmonic load operating states. The system comprises a computer device programmed to perform the aforementioned method. The method and the system can effectively detect the operating state of the transformer harmonic load, will not contact a charging device, are convenient to operation, and are high in detection efficiency.

The invention provides a missile test device mistake prevention system and method. The system comprises a two-dimensional code judging module, a resistance judging module, a digital I / O judging module, a PXI board card assembly, a judging module, and a test industrial control computer. In combination with two-dimensional codes, resistance identification and electronic ID identification, for solving the problems that in the missile product test process, due to manual mistakes, tested missile products are prone to being mixed up, and test cables and test equipment connector adaptors are mis-connected, the mistake prevention system of tested missile products, a test cable, a interface adapter and mistake prevention test software is formed. Compared with previous manual checking manner, through the automatic program, mistake prevention detection is carried out from the product end to the test equipment end, the failure accident caused by manual mistake can be effectively avoided, and the test safety is improved.

The invention discloses a method for adjusting antenna position. The method for adjusting the antenna position includes the steps: detecting whether a digital television terminal contains satellite searching identification or not when the digital television terminal is started; entering into a satellite searching mode and reading preset satellite searching parameters if the digital television terminal contains the satellite searching identification; targeting satellite signals according to the satellite searching parameters; and outputting a prompt message according to the targeting results to enable a user to adjust the position of the antenna according to the prompt message. The invention further discloses the digital television terminal. By means of the method for adjusting the antenna position and the digital television terminal, operating steps of mounting the antenna can be simplified, operation is convenient, and test safety is improved.

The invention discloses a hydraulic rerailer test system and test method. The hydraulic rerailer test system comprises a test device, an upper computer, a controller, an oil distributor, a hydraulic oil source, a hydraulic substation control console, a control system, a hydraulic pipeline, a tested hydraulic rerailer and a foundation. The test method comprises a rated load test step, a static loadtest step, a pressure maintaining test step, an emergency test step and a safety test step. The self-weight of an on-site rescue vehicle is simulated by adopting a vertical load applied by a verticalservo actuator, a transverse load applied by a transverse servo actuator is adopted to simulate the transverse moving resistance borne by a locomotive vehicle in the driving accident rescue process,and the load can be adjusted in time according to the transverse resistance of hydraulic rerailers of different models. The defects that the test model is single and the whole rescue process cannot besimulated are overcome, and the test efficiency, the detection flexibility and the detection accuracy are improved; and the hydraulic substation control console is arranged, so that an operator can remotely operate and control the start and stop of an oil quantity and an oil source, and the test safety is improved.

The invention relates to a whole vehicle physical load function test platform, belonging to the field of pure electric vehicle calibration and testing. The platform comprises a whole vehicle low-voltage signal simulator, a whole vehicle power signal controller, a high-voltage cabinet, an operation console and a whole vehicle controller which are connected with an industrial control computer. The whole vehicle controller is connected with an accelerator and brake signal control simulator and an actuator gearbox. The platform realizes the whole simulation test through the combination of the whole vehicle simulation signal and the real object operation, which is more consistent with the actual operation result, realizes the detection of the function and performance of the whole vehicle controller, can directly calibrate and test the parameters of the whole vehicle control program through the operation console, improves the test efficiency, and simplifies the test steps.

The invention discloses a mutual inductor handover test switching device and a switching method thereof. The device comprises four sets of switching circuits, respectively a first group of secondary winding switching loop, a second group of secondary winding switching loop, a third group of secondary winding switching loop and a fourth group of secondary winding switching loop, each of the switching circuits comprises an I+ input end, an I-input end, a U+ input end, a U- input end, a first selector switch, a second selector switch, an output end E, an output end L and an output end D. The I+ input end and the U+ input end are connected to one end of a secondary winding of the transformer in parallel, the I- input end and the U- input end are connected to the other end of the secondary winding of the transformer in parallel, the I+ input end is connected to the output end D and the I- input end through a first selector switch, and the I- input end is connected to the output end E and the output end L through a second selector switch. According to the invention, the mutual inductor with no more than four groups of secondary windings can be tested, the switching loop is simple, the switching is convenient, the test during mutual inductor handover is rapidly realized, the test time is shortened, and the test efficiency is improved.

The invention provides an automobile accelerator pedal simulation system, method and device, and relates to the technical field of automobiles. The automobile accelerator pedal simulation system comprises: a controller which is connected between an accelerator pedal position sensor and an electronic control unit through a data line; an input module which is connected with the controller and used for inputting a target accelerator opening value, a starting instruction and an ending instruction to the controller; and a controller area network (CAN) communication module which is connected with the controller, wherein the CAN communication module is used for receiving an actual accelerator opening value and a brake pedal signal sent by the electronic control unit, and the controller is used for sending target voltage determined according to the target accelerator opening value and the actual accelerator opening value to the electronic control unit. According to the scheme, testing can be started only by inputting the target accelerator opening value by a user, the testing efficiency is improved, meanwhile, intervention of a driver in the testing process is reduced, and the testing safety is improved.

The invention relates to the technical field of a circuit and discloses an automatic household electrical appliance main control board detection system and method. The system comprises an automatic control module used for controlling a main control board for performing corresponding motions or outputting the relevant information, and a detection module used for detecting the corresponding motionsof the main control board, wherein the automatic control module is used for receiving the relevant information outputted by the main control board and displaying the relevant information. The system is advantaged in that the main control board is automatically controlled for performing the corresponding motions and automatically detecting the information associated with the corresponding motions,automatic quality-inspection detection is realized, and work efficiency and operation safety are improved.

The invention discloses a mutual inductor handover test device and a test method thereof. The device comprises a test wire clamp, a switching device and a tester. The test wire clamp is connected to the input end of the switching device through a test wire. A test port of the switching device is connected to the tester, the test wire clamp can clamp a screw of a secondary side terminal of the mutual inductor, the switching device is used for connecting and short-circuiting a secondary winding of the mutual inductor, and the tester comprises an insulation resistance tester, a transformation ratio tester, a mutual inductor characteristic tester and a direct-current resistance tester. According to the invention, through using the test wire clamp, the switching device and different testers, the test wire clamp is connected with the switching device, the switching device is connected to the secondary winding of the mutual inductor at a time, various tests are achieved when the mutual inductor is handed over, the functions of open circuit, short circuit and grounding operation of the secondary side winding are rapidly completed only through switching of the switching device, the test time is shortened, and the test efficiency is improved.

The invention relates to a CAF test module, a test fixture and a test assembly. The CAF test module comprises a test substrate and a plug pad. The test substrate is provided with a test hole chain group; the test hole chain group comprises a first plated through hole, a first wire, a second plated through hole and a second wire, the first plated through hole is electrically connected with the first wire to form a first test hole chain, and the second plated through hole is electrically connected with the second wire to form a second test hole chain. The plug pad is arranged on one side of thetest substrate, the plug pad comprises at least two plugs, the first test hole chain is electrically connected with one plug through the first wire, and the second test hole chain is electrically connected with the other plug through the second wire. During a test, the plug pad is inserted into a slot of the connector, and after test bias voltage is applied to the test hole chain group, the CAF resistance of the test hole chain group can be judged by monitoring the resistance value of the test hole chain group. And after the test is finished, the plug pad is pulled out from the slot of the connector such that the test time can be shortened, and the test efficiency can be improved.

The invention provides a method for estimating the low-temperature mechanical properties of a PBT propellant based on contact angle data and a formula. The method includes the steps that according tothe contact angle test results of a reference solution on the surfaces of a PBT propellant filler and a substrate, interface characteristic parameters such as the adhesion work of a filler-substrate interface are calculated; based on the interface characteristic parameters, in cooperation with formula parameters of the propellant, the volume fraction of the filler, the adhesion work and the like are taken as input parameters, and the mechanical properties of the composite solid propellant is further estimated. The method is applied to the field of composite solid propellants; rapid estimationof the mechanical properties of the solid propellant can be reliably achieved, the experiment cost can be effectively reduced, the cycle can be shortened, and the testing safety can be improved.

The invention relates to the technical field of transducer testing, and discloses a door motor transducer testing system and method. The testing system comprises a to-be-tested door motor transducer, an upper computer, a simulation door signal testing board and a door load simulation subsystem; the upper computer comprises a door signal control module and a door load control module, wherein the door signal control module is used for outputting a door testing signal; the simulation door signal testing board is used for receiving the door testing signal and triggering the to-be-tested door motor transducer according tot the door testing signal and further used for receiving a feedback signal of the to-be-tested door motor transducer and transmitting the feedback signal to the door signal control module; the door signal control module is used for regulating the door testing signal according to the feedback signal; the door load control module is used for regulating the output load of the door load simulation subsystem. Accordingly, not only is the manpower and material cost of door motor transducer testing significantly reduced, but also the testing efficiency can be improved.

The invention provides a tool for rapidly testing quality characteristics of batch satellites, and a testing method. The tool comprises an outer supporting frame, an inner supporting frame, a shafting1, a shafting 2, a shafting 3, an adapter plate, a positioning block, a horizontal stop block and a vertical stop block, wherein the inner supporting frame is arranged in the outer supporting frame,the inner supporting frame rotates around the shafting 1 and the shafting 2, and the adapter plate rotates around the shafting III; an included angle between the outer supporting frame and the inner supporting frame is 0 degree through matched positioning of the horizontal stop block and the positioning block; the included angle between the inner supporting frame and the outer supporting frame is90 degrees through matched positioning of the vertical stop block and the positioning block; and positioning of the adapter plate is achieved by installing the positioning pin on the adapter plate. The tool is high in test efficiency, simple in structure, small in size, high in test precision, high in universality and safe and reliable in operation, the mass, the mass center and the moment of inertia parameters of a satellite can be measured after the satellite is installed at a time, the test efficiency is greatly improved, and the tool is particularly suitable for batch satellite quality characteristic test requirements.

The invention provides an intelligent gas hood based on a high / low-temperature impact system. The intelligent gas hood comprises a high / low-temperature-resistant sealing ring, gas flow sensors, horizontal drive mechanisms, a stirring fan, a motor and a fixation support base. The high / low-temperature-resistant sealing ring is arranged at the bottom portion of the fixation support base; the gas flowsensors and the horizontal drive mechanisms are arranged on the high / low-temperature-resistant sealing ring; and the stirring fan is arranged in the intelligent gas hood through the motor. The intelligent gas hood based on the high / low-temperature impact system can prevent high / low-temperature gas flow from directly impacting a test sample, thereby improving test data accuracy, reducing high / low-temperature gas flow leakage, reducing test noise, reducing secondary damage caused by high / low-temperature gas flow leakage and improving test safety.