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

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 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 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 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 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 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 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 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.