15 results about "Start signal" patented technology

A gate driver includes several first and second circuit units outputting first and second driving signals to odd and even gate lines, respectively, and each of the first circuit units or the second circuit units includes a signal output unit for outputting the driving signal and a shift register unit for outputting a start signal to a next circuit unit. A driving method is also disclosed.

The present invention provides a GOA drive system and a liquid crystal panel. Two GOA modules (2) are respectively provided at two sides of the liquid crystal display area (1), and each GOA module (2) is electrically coupled to one automatic detection interrupting function module (3) correspondingly, and each automatic detection interrupting function module (3) receives a feedback signal (FB) transmitted from the GOA unit circuit of the last stage of the GOA module (2), and by detecting whether the feedback signal (FB) is normal or abnormal, the scan start signal (STV) is transmitted or not transmitted to the corresponding GOA module (2) to normally drive the corresponding GOA module (2) or terminate driving so that as the GOA module (2) at one side of the liquid crystal panel display area (1) appears to be abnormal, the corresponding automatic detection interrupting function module (3) terminates driving the abnormal GOA module (2), and the GOA module (2) at the other side of the liquid crystal panel display area (1) continues normal driving, which contributes to raise the yield of the liquid crystal panel.

A control method for the infrared video transmission system of track traffic features that two locomotive detectors are respectively arranged at the different positions close to track. When a locomotive is running through the first detector, the detector sends a start signal to controller and the infrared video emitter transmits video signal to the display in driver cab. When the locamotive is running through the second detector, the detector sens a stop signal to control and the infrared video emitter is in wait state and no image is displayed on the screen in driver cab.

The invention discloses a method and device for starting an air cooling condensing unit suitable for a low-temperature environment. The method comprises the steps that S10, a starting signal of the condensing unit is obtained by a control main board; S20, shielding of evacuation protection of the control main board is triggered according to the starting signal and evacuation protection of the control main board is made ineffective; S30, under the condition that evacuation protection of the control main board is ineffective, a compressor is started. According to the method and device for starting the air cooling condensing unit suitable for the low-temperature environment, the accuracy of judgment that the evacuation protection condition is met is guaranteed, and it is guaranteed that the air cooling condensing unit can be started and operated smoothly under the low-temperature environment.

A pulse generator circuit that outputs pulses having a predetermined shape from an output terminal based on a start signal includes a timing generator circuit that generates (n+1) signals (n is an integer greater than or equal to 2), the phases of which sequentially change at predetermined time intervals from the point when the phase of the start signal changes, first and second power supplies that supply predetermined potentials, n impedance devices, and a switching circuit that connects the output terminal to the first or second power supply in a predetermined order according to the value of a logic function based on the (n+1) signals via the corresponding impedance device.

The invention provides an automatic inspection method, a storage medium and an inspection robot, and the method comprises the following steps: determining a moving speed and a moving path in an inspection process in response to an inspection starting signal; acquiring inspection video information or inspection image information, and associating the inspection video information or the inspection image information with an inspection position; if it is determined that the monitored device has a fault according to the inspection video information or the inspection image information, taking the current inspection position as a fault point and reporting the inspection video information or the inspection image information corresponding to the fault point. According to the scheme, in the automatic inspection process, when it is determined that the monitored equipment has a fault according to the inspection video information or the inspection image information, only the inspection video information or the inspection audio information related to the fault point needs to be reported; therefore, in the inspection process, the inspection robot can complete fault detection and fault data reporting locally, higher instantaneity is achieved, and the inspection efficiency can be improved.

A light amount control device that controls an amount of light acquired from a light source provided in an image display apparatus includes: a pulse generator; an operation processing portion for light amount control that outputs a transfer start signal at timing when the amount of light is controlled; a data setting circuit that is provided outside the operation processing portion and that stores data, in which various kinds of signals instructing the operation processing portion to set transfer data beforehand are set, in a memory; an address generator that is provided outside the operation processing portion and that sets an address in response to the transfer start signal output from the operation processing portion; a memory that is a main component included in the pulse generator and that outputs data on the basis of a memory address generated by the address generator; a pulse driven body whose operation direction and speed are determined by a pulse signal formed by data output from the memory and which is driven by a pulse; an actuator connected to the pulse driven body; and an opening capable of adjusting the amount of transmitted light according to an operation of the actuator inserted in an emission path of the light source.

The invention provides an electric diming device. A diming screw arranged in a to-be-detected car lamp arranged at a preset angle position is rotated to adjust the position of a light and shadow dividing line of the to-be-detected car lamp. The electric dimming device is included in a car lamp online detecting system, and receives car lamp in-place signals, dimming starting signals for starting to rotate the dimming screw, forward dimming signals for rotating the dimming screw in the forward direction, reverse dimming signals for rotating the dimming screw reversely and dimming stopping signals for stopping rotating the dimming screw, wherein the car lamp in-place signals are sent when a work position conversion device in the car lamp online detecting system conveys the to-be-detected car lamp to the preset angle position, and the dimming starting signals are sent by a light detecting device in the car lamp online detecting system. The electric diming device is characterized in that a dimming unit, an input setting unit, a locating unit, a CAN bus interface and a dimming control unit, wherein the dimming unit comprises a dimming cutter, a dimming motor and a dimming driving portion, and the locating unit comprises a longitudinal locating mechanism, a transverse locating mechanism and an axial locating mechanism.

The invention discloses a photovoltaic grid-connected island detection method based on zero-sequence current injection. The photovoltaic grid-connected island detection method comprises the steps thatan island detection model is built; iabc flowing out of the DC/AC inverter passes through a transformer and then enters a power grid unit for operation; and if the signal relay acts, information is fed back to the DC/AC inverter, the DC/AC inverter is injected into I(0) at the moment, a zero-sequence current value at the PCC is detected, and if the zero-sequence current value at the PCC exceeds aset threshold value, the island state is judged. According to the photovoltaic grid-connected island detection method, the signal relay is used for sending the signal to the photovoltaic power generation unit, so that the problem of relatively high cost of a communication detection method is avoided; only when an alarm starting signal given by the signal relay is received, zero-sequence current disturbance is injected, so that the problem of large blind area of a passive detection method is avoided, and the influence of the active detection method on the electric energy quality is relieved toa certain extent.

The invention provides a magnetostrictive open circuit optical control device, and relates to the field of magnetostrictive effect optical current transformers. Problems that the conventional magnetostrictive transformer is complex in signal processing and circuit structure, and false operation or refusal operation is caused easily are solved. The magnetostrictive open circuit optical control device comprises a sensing head made of a magnetostrictive material, a sensing head spherical reflector, a laser detector and a parallel reflector, wherein the bottom surface of the sensing head spherical reflector is fixed on the upper end surface of the sensing head made of the magnetostrictive material and is connected with the sensing head made of the magnetostrictive material to form a whole; the laser detector is arranged over the sensing head spherical reflector; the parallel reflector is arranged in a light path between the reflecting light of the sensing head spherical reflector and the incident light of the laser detector; the distance between the parallel reflector and the axle center of the sensing head made of the magnetostrictive material is L; and an electric signal output end of the laser detector is an open circuit starting signal output end of the magnetostrictive open circuit optical control device. The magnetostrictive open circuit optical control device is applicable to the field of magnetostrictive effect optical current transformers.

The invention discloses a flashlight which comprises a lamp bead, a floodlight strip, a signal input unit, a control unit, a first lamp control unit and a second lamp control unit. The signal input unit is connected with the control unit, the signal input unit is used for providing a starting signal for the control unit, a first output end of the control unit is connected with the first lamp control unit, a second output end of the control unit is connected with the second lamp control unit, and the control unit is used for outputting a first lamp control signal and a second lamp control signal according to the starting signal; the first lamp control unit is connected with the lamp beads, and the second lamp control unit is connected with the floodlight strip. The first lamp control unit is used for controlling the state of the lamp beads according to the first lamp control signal, and the second lamp control unit is used for controlling the state of the floodlight strip according to the second lamp control signal. The flashlight is arranged to be the flashlight capable of emitting light at 360 degrees, illumination meeting the range requirement can be provided, meanwhile, 360-degree illumination can be provided, and the use range of the flashlight is widened.

The invention discloses a baby quilt-kicking detection system, which comprises an infrared detection unit and an alarm unit, and is characterized in that the infrared detection unit is composed of an infrared transmitting portion and an infrared receiving portion, the infrared transmitting portion comprises a central processor and an infrared transmitting circuit connected with the central processor, the infrared transmitting circuit comprises an infrared transmitting tube, the front end of the infrared transmitting tube is connected to two switching triodes, and the two switching triodes are respectively connected with two output ports of the central processor; and the infrared receiving portion comprises an infrared receiving circuit, the infrared receiving circuit is connected with the alarm unit, and the infrared receiving circuit sends a starting signal to the alarm unit. When a baby is in sleep, the infrared transmitting circuit of the infrared transmitting portion transmits infrared signals, the infrared receiving portion receives the signals, and the infrared signals are enhanced instantaneously when the baby kicks the quilt. The baby quilt-kicking detection system is quick in response and convenient to use.

The embodiment of the invention discloses an electric vehicle control method and an electric vehicle controller. The method comprises the steps of 1, when a starting signal of a user is received, outputting a first starting driving signal comprising a forward driving signal and a reverse driving signal according to the starting signal, wherein the duty ratio of the first starting driving signal isthe same as that of the starting signal, and the direction of current applied to the motor by the reverse driving signal is opposite to that of current applied to the motor by the forward driving signal; sampling a first counter electromotive force of a motor suspension phase when the forward driving signal is applied to the motor, and sampling a second counter electromotive force of the motor suspension phase when the reverse driving signal is applied; and outputting a second starting driving signal according to the difference between the first counter electromotive force and the second counter electromotive force. The accurate commutation time is obtained according to the variation trend of the difference between the two counter electromotive forces, and a starting signal is applied tostably start the motor. The problem that the motor control is out of step when a driving signal is generated by using a zero-crossing detection method in the prior art is solved.

The invention relates to a control circuit of a smoke exhaust fan and a smoke exhaust control system. The control circuit of the smoke exhaust fan comprises a signal access module and a smoke exhaustfan power supply control module. The first end of the signal access module is connected with the first end of the smoke exhaust fan power supply control module, and the second end of the signal accessmodule is used for being connected with a positive electrode of a power source. The second end of the smoke exhaust fan power supply control module is used for being connected with a negative electrode of the power source. The signal access module is switched on when a fire alarm signal is received, so that a power supply loop of the smoke exhaust fan is switched on by the smoke exhaust fan powersupply control module based on electric energy of the power source. The fire alarm signal comprises a smoke exhaust valve switch-on signal sent by a smoke exhaust valve, and an automatic remote startsignal sent by an automatic fire alarming system or an artificial remote start signal sent by a fire alarm linkage control system. By means of the control circuit of the smoke exhaust fan and the smoke exhaust control system, the problem that the smoke exhaust fan cannot be started when the automatic fire alarming system and the fire alarm linkage control system break down can be avoided, and then the reliability of the smoke exhaust fan is improved.

The invention provides an operating parameter configuration method. The method is applied to electronic equipment comprising an application program. The method comprises: configuring at least two setsof operation parameters for the application program, wherein the at least two sets of operation parameters comprise a set of preset operation parameters and a set of optimal operation parameters, andthe optimal operation parameters are obtained through calculation according to the operation parameters adopted by the electronic equipment to execute the application program every time; detecting astarting signal for starting the application program in real time; determining a set of operating parameters from the at least two sets of operating parameters according to the starting signal; and executing the application program at the foreground according to the determined running parameters. According to the invention, the running parameters required by the application program during foreground execution can be determined when the application program is started, and the dynamic management configuration of the running parameters of the application program is realized.