36results about How to "Improve self-test performance" patented technology

The invention relates to a locking method for a locking device. The locking device comprises an optoelectronic switch, a comparator, a single chip microcomputer, a driving integrated circuit, a powersupply module and a motor, and four modules of a main program module, a serial port receiving interrupting module, a serial port transmitting interrupting module and a software timing interrupting module are arranged in the single chip microcomputer. The optoelectronic switch reads position information of a mechanical platform body, the comparator processes a signal and feeds back the signal to the single chip microcomputer, and after the single chip microcomputer judges the position signal, a PWM pulse width wave is sent to a driving chip to control the motor to rotate. The locking control method adopts a pulse width modulation control mode (PWM), and not only has the advantages that the noise influence is low, and the transmitting distance is long, but also utilizes a small pulse wave tocontrol stalling of the motor in the locking process, and therefore high reliability of locking is achieved. The operation is convenient and easy to implement, and not only is quick locking of the locking device achieved, but also high reliability of locking of the locking device is achieved through continuous impulse waves in the locking process.

The invention discloses a temperature control circuit used for controlling a temperature of an atomizing chamber of a mass spectrometer sampling system. The atomizing chamber is provided with refrigerating sheets; the temperature control circuit comprises a program-controlled constant current source module used for providing a constant current power supply for the refrigerating sheets, a temperature sensor module used for acquiring a real-time temperature inside the atomizing chamber to obtain a temperature sampling signal, an analogue-digital conversion module coupled with the temperature sensor module and used for performing analogue-digital conversion on the temperature sampling signal, and a control module coupled between the program-controlled constant current source module and the analogue-digital conversion module and used for controlling output of the program-controlled constant current source module based on a value of the temperature sampling signal after being converted by the analogue-digital conversion module. The temperature control circuit realizes online circuit break detection function on the refrigerating sheets and the temperature sensor at the same time, and therefore can improve reliability and self-checking capability of the temperature control.

The invention relates to a diamond coated drill bit, and mainly relates to the technical field of drill bits for drilling. According to the diamond coated drill bit, when mine drilling operation is carried out, in the drilling process, a control module compares the detected actual temperature of the drill bit with the preset drilling temperature, compares the actual drilling amount of the drill bit with the preset minimum drilling amount and calculates the average vibration frequency of the drill bit within a period of time, if the temperature and the vibration frequency in the comparison result meet the requirements, the drilling quantity is larger than or equal to the preset minimum drilling quantity, and the actual rotating speed of the drill bit exceeds the preset maximum rotating speed, the rotating speed of the drill bit is controlled to be reduced through an adjusting control module, the drilling quantity is lower than the preset minimum drilling quantity, the actual rotating speed of the drill bit exceeds the preset maximum rotating speed, the control module judges that the drill bit needs to be replaced, the self-checking capacity of the drill bit is improved, and the drilling efficiency of the drill bit is improved.

The invention relates to an electronic voltage transformer which includes an electronic voltage transformer main body, an excitation detector, and a Freescale IMX 6 processing chip. The excitation detector is used for performing excitation detection on a housing of the electronic voltage transformer main body. The Freescale IMX 6 processing chip receives an excitation detection result and determines a defect type of the housing of the electronic voltage transformer main body. The electronic voltage transformer can realize self detection of multiple parameters of the electronic voltage transformer and optimize the structure of the electronic voltage transformer.

The invention discloses a new energy electric power monitoring system safety monitoring device. The technical scheme is that the device comprises a safety zone 1, a safety zone 2 and a safety zone 3.The safety zone comprises a local dispatcher, a router is arranged at the connection end of the local dispatcher, zone longitudinal encryption is arranged at the connection end of the router. The device has the beneficial effects that through the design of structures such as the safety zone 1, the safety zone 2 and the safety zone 3, network faults such as off-line data nodes and abnormal link data volume in a new energy field station side scheduling data network can be sensed in time. The problem that network attacks, virus infection and other security events occurring in a new energy stationcannot be effectively perceived is avoided, the network state information in the current station can be directly obtained and analyzed and judged, and alarm information is provided for common networkfaults or security attacks. And the response speed and the self-checking capability of the plant station to the security problem existing in the network of the plant station are improved.

The invention relates to an electronic voltage transformer comprising an electronic voltage transformer body, an excitation detector and a Freescale IMX6 processing chip. The excitation detector is used for carrying out excitation detection on the shell of the electronic voltage transformer body. The Freescale IMX6 processing chip receives the excitation detection result and determines the defect type of the shell of the electronic voltage transformer body based on the excitation detection result. According to the invention, multiple parameters of the electronic voltage transformer can be self-detected while the structure of the electronic voltage transformer is optimized.

The present invention relates to an electronic voltage transformer. The electronic voltage transformer comprises an electronic voltage transformer main body, an excitation detector and a Freescale IMX6 processing chip. The excitation detector is configured to perform excitation detection of the housing of the electronic voltage transformer main body, and the Freescale IMX6 processing chip is configured to receive an excitation detection result and determine the types of the defects of the electronic voltage transformer main body based on the excitation detection result. The electronic voltage transformer is able to realize the self detection of a plurality of parameters of the electronic voltage transformer while optimizing the structure of the electronic voltage transformer.

The invention discloses a metal steel plate end face chip milling device which comprises a door-shaped frame, a spindle motor, an electric control powerful magnetic disc, a movable lifting door, a lifting door regulation and control assembly, a lifting regulation and control assembly, a numerical control operation box, a working table, a fixing frame, a machine head and a cutter head. The door-shaped frame is arranged on the working table, and the lifting door regulation and control assembly is arranged on the door-shaped frame; the movable lifting door is arranged on the door-shaped frame, the movable lifting door is connected with the lifting door regulation and control assembly, the electric control powerful magnetic disc is arranged on the workbench, the fixing frame is arranged on the electric control powerful magnetic disc, the electric control powerful magnetic disc penetrates through the door-shaped frame, and the lifting regulation and control assembly is arranged on the door-shaped frame; and the numerical control operation box is arranged on the door-shaped frame, the spindle motor is arranged on the lifting regulation and control assembly, the machine head is arranged at the output shaft end of the spindle motor, and the cutter head is arranged on the machine head. The invention belongs to the technical field of intelligent mechanical equipment, and particularly relates to the metal steel plate end face chip milling device.