66results about How to "Avoid false signals" patented technology

An intermediate adapter includes a first terminal operable to be electrically connected to a lens detecting terminal provided on the camera body when the intermediate adapter is attached to the camera body, a second terminal operable to be electrically connected to a terminal provided on the interchangeable lens for providing a ground potential when the interchangeable lens is attached to the intermediate adapter, and a first switch interposed between the first terminal and the second terminal. The first switch is operable to electrically connect the first terminal and the second terminal when the first switch is on, and disconnect the electrical connection between the first terminal and the second terminal when the first switch is off. While the intermediate adapter is being attached to the interchangeable lens, the first switch is off to disconnect the electrical connection between the first terminal and the second terminal.

The invention discloses a digital-analog hybrid neural network chip architecture. The architecture comprises a two-dimensional SRAM module, an analog synaptic circuit, a nerve cell circuit, an AER communication module, and a master control digital unit. The two-dimensional SRAM module is taken as a storage unit of neural network connection relation and a synaptic weight value. The analog synaptic circuit and the nerve cell circuit respectively consist of an MOSFET circuit working in a subthreshold section. The AER communication module serves as the input and output interfaces of a chip, and employs an AER protocol for communication. All control circuits in the architecture are synchronous digital circuits. The architecture is low in power consumption, is high in degree of parallelism, and can achieve a neural network algorithm in a reasonable chip area, wherein the neural network algorithm is more complex in nerve cell functions, is larger in network scale, and is more flexible in connection.

A mail delivery alert system includes a mailbox housing that encloses an interior space that defines an open front. A door is pivotally coupled to the housing and is movable between open and closed configurations relative to the open front. A first sensor is positioned in the housing so as to detect an opening of the door and a second sensor is positioned so as to detect the presence of an article, such as mail, in the open space of the housing. The system includes a transmitter and a processor. The processor includes programming for actuating the transmitter to transmit an alert signal through the air upon the first sensor detecting an opening of the door and the second sensor detecting the presence of an article in the open space of the housing. The system includes a receiver remote from the housing for receiving the alert signal.

The invention relates to a three-station isolation grounding switch operating mechanism of a combined electrical appliance. A dividing device consisting of a dividing wheel, a dividing cam wheel and a movable key is sleeved on a worm wheel shaft close to one side of the output end; an electrical control device which consists of a dial sheet cam wheel, a dial pin cam wheel and a switch cam wheel and is matched with a guide plate in a dialing mode is sleeved at the outer end of the worm wheel shaft; the dial sheet cam wheel, the dial pin cam wheel and the gradient cam wheel are connected synchronously; and the dividing wheel and the worm wheel shaft are connected synchronously; and the rotation direction of a motor is controlled by two electromagnetic coils. The mechanism provided by the invention is inventive in design, is simple in structure, is reliable in action, is small in appearance and is light in weight; the mechanism is applied to 10kV-220kV two-station, three-station and multi-station switch operation; the mechanism can also be applied to other fields to move in a rotation mode or in a translation mode; different output torques can be obtained through regulating the motor power; the electrical loop is controlled only utilizing a position switch, thus the number of tip points of the switch cam wheel equals to the number of the working positions of the mechanism, and the mechanism can be used for the operation of a multi-station switch and other mechanical movements.

Disclosed is an automatic alarm unit for highway accidents. Wireless signal receivers are disposed at entries and medians of a highway at certain intervals. Outputs of the wireless signal receivers are connected with an input end of a controller. A wireless signal transmitter is arranged in each vehicle and operates under the same frequency as the wireless signal receivers. Each wireless signal transmitter is provided with a unique address code and constantly transmits an address code signal out, and the transmitting distance is smaller than one half of the distance between the two wireless signal receivers. The controller determines identity and location of each vehicle according to received address code. Alarm signal lamps are disposed on each median of the highway at certain intervals and are connected with an output end of the controller. When one wireless signal receiver receives the address code signal of the vehicle, next controller is informed of starting timing. When the set time is up and the wireless signal receives no address code signal of the vehicle, the controller turns on the alarm signal lamps behind the vehicle to inform following vehicles to slow down and stop. The automatic alarm unit for highway accidents can be used for detecting occurrence of vehicle accidents and the vehicles running at the speed smaller than the safety speed, and timely sends out alarm signals to reduce rear-end collisions of vehicles.

The invention provides a frequency measurement method, device and system for a pumped storage unit. The method comprises the steps of obtaining control instructions of the pumped storage unit in different working modes, wherein the working modes include the water turbine direction electricity generation module and the water pump direction water pumping mode; according to the control instructions and set selection logic, selecting PT frequency measurement or toothed disc frequency measurement at different stages in each working mode. According to the frequency measurement method, device and system for the pumped storage unit, the specific frequency measurement schemes and frequency measurement measures are adopted for a special working condition to avoid error signals, the exclusive frequency measurement schemes are developed particularly for the two special working conditions of SFC dragging and electric braking halt, and safe and reliable running of the unit is ensured; meanwhile, three probes are selected in the toothed disc frequency measurement scheme for frequency measurement, the real rotating speed of the unit can be given according to the health status and switching logic of the three probes, the confidence level of the toothed disc frequency measurement is ensured, and the frequency measurement reliability of the whole unit is improved.

The invention provides a gas igniter integrated device. The gas igniter integrated device comprises a transformer sleeve, a gas pipe connected with the transformer sleeve and a casing pipe connected with one side of the gas pipe and further comprises an automatic ignition device, an ignition transformer, a flame monitoring device, an input and output port and a programmable logic controller (PLC) control circuit. The automatic ignition device is arranged in the transformer sleeve and connected with the PLC control circuit through the input and output port; and the ignition transformer is arranged in the transformer sleeve, connected with a relay of the automatic ignition device, and controlled by the PLC control circuit. The flame monitoring device is arranged in the casing pipe and composed of three parts including a gas burner, an ignition electrode and an ion electrode, the gas burner is connected with the gas pipe through a valve, the ignition electrode is connected with the ignition transformer, and the ion electrode is connected with the automatic ignition device. The ignition transformer can generate thousands of volts of high voltage, simultaneously a short circuit protective circuit and an open circuit protective circuit are provided; flame is monitored in real time; and the gas igniter integrated device is high temperature resistant, strong acid resistant, oxidation resistant, compact in structure and convenient to use.

The invention discloses an infrared touch screen receiving structure which comprises infrared receiving terminals, optical fibers, an infrared imaging device and an image processing module, wherein the infrared receiving terminals are used for fixing the optical fibers for receiving infrared ray signals; the optical fibers are used for receiving the infrared ray signals sent by an infrared sending device, and one end of each optical fiber is fixedly mounted on the corresponding infrared receiving terminal; the infrared imaging device is used for receiving the infrared ray signals transmitted by the optical fibers and forming corresponding pixel points according to the infrared ray signals; and the image processing module is electrically connected with the infrared imaging device and used for converting the pixel points to coordinate information of an infrared touch screen touch area. The infrared touch screen receiving structure is capable of realizing functions of infrared receiving tubes of a common infrared touch screen by the aid of one infrared imaging device, and manufacture cost can be effectively lowered as the optical fibers and the infrared imaging device are low in cost. Besides, the optical fibers are much smaller than the common infrared receiving tubes and beneficial to resolution enhancement of an infrared touch screen.

The invention discloses computer information input device and method, which avoids the limb damage and germ propagation of normal keyboard and mouse and simplifies the input of three-dimension spatial movement information. The device contains a hand-held light beam pen and corresponding light signal receiver with some light sensitive elements on the surface, wherein the receiver microprocessor analyses the position and pattern of light beam movement and outputs the corresponding signal.

The invention relates to a vehicle overwidth detection method for back cantilever three-dimensional parking space. Photoelectric sensors capable of adjusting rotatably are arranged on back upright columns of back cantilever parking equipment parking space; the same photoelectric reflecting plate is arranged on each vehicle-carrying plate edge beam of parking equipment. When the vehicle-carrying plate is at the ground access parking space position, a corresponding detection relationship between the photoelectric reflecting plate arranged on the vehicle-carrying plate edge beam and the photoelectric sensors on the back upright columns is formed. According to the method, the cost performance ratio is high and equipment cost is reduced; the method is suitable for being popularized and used ongarages. The overwidth detection photoelectric sensors are arranged on the fixed upright columns at the back end of the parking space and are not waggled during transverse shifting or lifting action of the parking space, so that occurrence of error signals is avoided. Through application of the detection method, the safety of the back cantilever lifting transverse shifting three-dimensional parking equipment is improved and safety accidents caused by the ultrawide shape of the vehicle are reduced.

The invention discloses a method for detecting the connection state of a high-voltage connector. The method comprises the following steps that 1, a pulse signal is generated; 2, the pulse signal is output to a signal detection line 1 of the high-voltage connector; 3, a signal detection line 2 of the high-voltage connector returns the signal to a chip; 4, the connection state of the high-voltage connector is judged according to the signal returned to the chip by the high-voltage connector. According to the method, the connection state of the high-voltage connector is detected through the pulsesignal, so that the situation is avoided that a wrong signal is generated after the signal lines and a machine shell are short-circuited and accordingly misjudgment of a CPU or the chip is caused; thedetection effect of the method is good.

The invention relates to a device for adjusting a seat based on gesture recognition, which comprises an automobile armrest and an automobile power supply, and is characterized in that a starting switch is arranged at one side of the armrest of the automobile seat, a pressure sensor is arranged on the upper surface of the armrest of the automobile seat, an imaging component is arranged on the automobile seat, and the imaging component comprises a camera and a background area, and the camera is opposite to the background area. The method for adjusting the seat based on gesture recognition is characterized by comprising the following steps of: 1, transmitting gesture images to a gesture recognition mechanism by a central processor; 2, transmitting the recognition result back to the central processor by a gesture recognition mechanism; 3, driving a corresponding adjusting motor to work by the central processor according to the recognition result. By means of the gesture recognition technology, the automatic adjustment of the automobile seat is achieved; false signals in gesture recognition are avoided.

The invention provides a submarine pit depth development measuring device and a use method. The device comprises a sleeve, a telescopic member, a first return elastic member, positive and negative electrode sheets, a controller, a signal transmitter, a signal receiver, a measuring device and a weight member. The positive and negative electrode sheets are arranged in the sleeve with spacing and areconnected with the measuring device. The controller is connected with the measuring device and the signal transmitter. The signal transmitter is connected with the signal receiver. The telescopic member is slidably attached to the sleeve and can transmit the weight member. Both ends of the first return elastic member are connected with the telescopic member and the negative electrode sheet respectively. The weight member slidably sleeves the sleeve and is placed on the seabed. When the weight member slides downward, the telescopic member is driven to slide into the sleeve to enable the positive electrode sheet to contact the negative electrode sheet. The measuring device measures the resistance value between the positive and negative electrode sheets and transmits the resistance signal tothe controller. The controller compares the resistance signal with set resistance to determine and control whether the signal transmitter transmits a signal to the signal receiver. The device has theadvantages of simple structure, convenient implementation and high precision.

The invention discloses a multi-channel communication synchronous transmission system. The system comprises a frequency acquisition module and a comparison feedback module, the frequency acquisition module uses a frequency collector J1 of which the model is SJ-ADC to acquire the carrier signal frequency of a multichannel communication node signal transmitter. The comparison feedback module uses anoperational amplifier AR1 and a triode Q4 to form a detection circuit to adjust a signal waveform. An operational amplifier AR2, a resistor R6 and a capacitor C4 form a comparison circuit for comparing output signals of a push-pull circuit and the detection circuit; a high-level detection circuit composed of a triode Q5 and a voltage stabilizing tube D5 is used for detecting an output signal of the operational amplifier AR2; an operational amplifier AR3 compares a transmitter signal of the triode Q5 with an output signal of a composite circuit; and the signal is sent to a controller of the multichannel communication synchronous transmission system through a signal transmitter E1, so that the carrier signal frequency of the multichannel communication node signal transmitter can be calibrated and converted into a correction trigger signal of the multichannel communication synchronous transmission system controller.

A measuring arrangement, including: a measuring transmitter with a sensor for registering a property of a medium and for issuing a primary signal dependent on the property; a transmitter housing, with at least one chamber and a first opening on the side facing the medium as well as a second opening, with a first contamination path section extending between the openings through the chamber; a first seal, which interrupts the first contamination path section; a circuit in the chamber, for processing the primary signal and producing an output signal, which is issued over a first signal path section through the second opening; a safety module, which includes: a module housing with at least one module chamber, having a first module opening on the side facing the transmitter and a second module opening, wherein a second contamination path section reaches from the first module opening at least as far as into the module chamber; at least a second seal, which interrupts the second contamination path section; and a second signal path section; wherein the safety module is connectable with the transmitter, such that the contamination path sections and signal path sections connect each to one another; and a leak detector, which monitors a contamination path section between the two seals.

The invention discloses a method and a device for sensing signals for starting and stopping control of a conveyor. The method comprises the following steps of arranging a rotary bracket which can be pushed by a to-be-conveyed object above the tail part of a conveying belt of the conveyor, arranging a sensing plate at the tail end of the rotary bracket, and arranging a signal sensing switch which is matched with the sensing plate above the rotary bracket; when the to-be-conveyed object is moved to the tail part of the conveying belt, pushing and lifting up the tail end of the rotary bracket, enabling the sensing plate to enter the sensing range of the signal sensing switch, and enabling the signal sensing switch to control the stopping of the conveyor; when the to-be-conveyed object leaves off the conveying belt, enabling the tail end of the rotary bracket to fall down under the action of self gravity, enabling the sensing plate to disengage from the sensing range of the signal sensing switch, and enabling the signal sensing switch to control the starting of the conveyor. The method has the advantages that the occurrence of false signals is avoided, and the reliability is higher; the implementation of the method is easy, the structure of the device is simpler, the implementation cost is lower, and the subsequent maintenance is convenient; the applicability is high, and the method is favorable for being popularized.

The invention relates to a voice connector. The voice connector comprises an insulation body, a plurality of conductive terminals and a switch, the conductive terminals are contained in the insulation body, the insulation body is provided with an insertion hole extending longitudinally, each conductive terminal comprises a contact portion protrudingly extending into the insertion hole and a weld pin extending out of the insulation body, and the switch comprises a moving terminal and a fixed terminal. The moving terminal comprises a butting portion extending into the insertion hole and a first welding portion extending out of the insulation body, the fixed terminal comprises a lapping portion and a second welding portion extending out of the insulation body, the butting portion is positioned behind the contact portions of the conductive terminals, and the butting portion is longitudinally aligned to the lapping portion to contact with or disconnect with the lapping portion. On-off switching of the switch is finished after the contact portions of the conductive terminals contact with preset positions of a plug, and accordingly instant generation of false signals can be avoided, and the plug can receive accurate signals.

The invention belongs to the field of electronic technology, and discloses a cascade bus signal receiving circuit and a control system, wherein the cascade bus signal receiving circuit is arranged ina power supplying cable and comprises a first diode, a signal receiving module, a processor and a fourth capacitor. The signal receiving module is electrically connected with the anode of the first diode, the cathode of the first diode and the processor. The signal receiving module is used for analyzing a control signal and transmits the control signal to the processor. The processor is used for controlling a slave computer load according to the control signal. A cascade bus control system comprises power supply equipment, a host computer, at least one slave computer and at least one slave computer load. Each slave computer comprises a current bypass circuit and a signal receiving circuit which are connected in parallel. The cascade bus signal receiving circuit and the control system are suitable for performing intelligent home reconstruction on a decorated house and furthermore can eliminate a signal noise in the signal receiving circuit, thereby facilitating accurate control over theslave computer load.

A detection and updating method of touch system includes: proceeding an ideal base signal measurement to obtain a plurality of ideal base signals under an ideal state; proceeding a raw base signal measurement to obtain a plurality of raw base signals under a raw state; forming a linear relationship related by the ideal base signals and the raw base signals to obtain two coefficients; calculating a plurality of new base signals according to the two coefficients and the ideal base signals; and, proceeding a base signal updating method by the new base signals.