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4results about How to "With self-test function" patented technology

Universal fire alarm signal system detector

PendingCN119535036AWith self-test functionMake sure it's good or badResistance/reactance/impedenceElectrical measurement instrument detailsControl cellPower usage
The invention discloses a general fire alarm signal system detector, and belongs to the technical field of aircraft detection. Comprising a power supply unit, a control unit, a first relay matrix, a second relay matrix, an action voltage simulation unit, a resistance measurement module and a display unit, the display unit is connected with the tested equipment and the power supply unit; the tested equipment is connected with the power supply unit; the power supply unit is used for performing power supply management on electric equipment and tested equipment; the control unit is used for controlling the first relay matrix and the second relay matrix to switch working modes and detection channels, reading test data and displaying the test data on the display unit; the resistance measuring unit is used for measuring the resistance of the measured equipment; the action voltage simulation unit is used for outputting a target voltage signal; the power supply unit is powered by various power supplies, so that various detected devices can be detected. Normal work can be realized by adopting any power supply; and a plurality of control boxes with the same working principle and matched sensors can be detected.
Owner:CHENGDU FEIYA AVIATION EQUIP APPL INST CO LTD

Vehicle-mounted connecting wire harness with self-detection function

The vehicle-mounted connecting wire harness with the self-detection function comprises a mounting block, a quick connecting mechanism and a loosening alarm mechanism, a plug is arranged in the middle of the front end of the mounting block, a wire harness is arranged in the middle of the rear end of the mounting block, and the quick connecting mechanism comprises a sliding groove, a connecting block, a locking block, a limiting column and a first spring. The sliding grooves are formed in the front side of the interior of the mounting block, the connecting blocks are connected to the interiors of the sliding grooves in a sliding mode, the locking blocks are arranged at the outer side ends of the connecting blocks, the limiting columns are arranged in the middles of the opposite outer side faces of the connecting blocks, and the looseness alarm mechanisms are arranged at the upper end and the lower end of the mounting block correspondingly. The wiring harness is simple in structure and convenient to use, can be quickly mounted and dismounted, is convenient to overhaul, is also provided with a high-temperature and loosening falling early-warning mechanism, can timely detect and remind when the wiring harness is abnormal, and greatly reduces the occurrence of potential safety hazards.
Owner:DONGTAI DONGDIAN ELECTRONICS CO LTD

A full-automatic membrane changing device and method compatible with single-body filter membrane and puncture membrane sheet

PendingCN122582773AFast membrane changeWith self-test function
The application discloses a kind of compatible monomer filter membrane and puncture membrane piece full-automatic membrane changer and method, filter membrane holder is installed on filtration station, monomer filter membrane automatic taking and sending mechanism includes the push rod type membrane piece separation device for pushing the single filter membrane in the lowermost part of the single filter membrane containing box to the membrane taking position and the moving device for moving the single filter membrane on the membrane taking position to the filter membrane holder, puncture membrane piece automatic feeding mechanism adopts reel-reel structure, unused puncture membrane piece is installed on puncture membrane piece supply disc, and the fresh membrane piece on puncture membrane piece supply disc is moved to the filter membrane holder on filtration station by winding shaft, and the lower part of filtration station is provided with membrane piece puncture and positioning needle, the device and method can be compatible with two consumables of monomer filter membrane and puncture membrane piece, membrane changing speed is fast and has self-checking function.
Owner:HUANENG QINMEI RUIJIN POWER GENERATION CO LTD +2

Photoelectric decoding circuit with self-checking function, detection method and detection system

The present application relates to the field of photoelectric decoding detection, discloses a photoelectric decoding circuit with self-checking function, a detection method and a detection system, the photoelectric decoding circuit with self-checking function comprises: a plurality of light emitting tubes for emitting light signals;A plurality of light receiving tubes for one-to-one receiving the light signals emitted by the plurality of light emitting tubes;A current detection circuit for detecting the current values of the plurality of light emitting tubes and the plurality of light receiving tubes and outputting current detection signals;A processing chip for judging the normal state, short-circuit state or open-circuit state of the plurality of light emitting tubes and the plurality of light receiving tubes according to the current detection signals and outputting corresponding state signals.The present application can judge the state of each light emitting tube and light receiving tube, thereby judging the fault condition of the photoelectric meter device.
Owner:SHENZHEN CHUANGREN TECH