Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

65 results about "Multiway switching" patented technology

In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load (often, but not always, lighting) from more than one location. For example, this allows lighting in a hallway, stairwell or large room to be controlled from multiple locations. While a "normal" light switch needs to be only a single pole, single throw (SPST) switch, multiway switching requires the use of switches that have one or more additional contacts and two or more wires must be run between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used. Double pole, double throw (DPDT) switches allow control from three or more locations.

Superconducting multi-way switches

A device comprises a switch circuit and control lines. The switch circuit comprises a plurality of signal input / output ports, and a plurality of switch nodes, each switch node comprising a superconducting loop which comprises a plurality of Josephson junctions arranged in a ring configuration. The control lines are configured to selectively apply flux bias control signals to the switch nodes. The plurality of switch nodes is arranged to selectively configure a signal routing path between any pairwise combination of signal input / output ports of the plurality of signal input / output ports, in response to flux bias control signals selectively applied to the switch nodes.
Owner:INTERNATIONAL BUSINESS MACHINE CORPORATION

Convenient-to-splice WIFI multi-way switch

The utility model discloses a WIFI multi-way switch convenient to splice, which comprises a middle shell, the left side and the right side of the middle shell are respectively provided with a left shell and a right shell, the front side of the middle shell is provided with a left cover plate and a right cover plate, upper positioning rods are arranged above one side of the middle shell and one side of the left shell, lower positioning holes are arranged below one side of the middle shell and one side of the left shell, and the left cover plate and the right cover plate are arranged in the middle shell. Insertion rods are integrally formed on the middle shell and the left shell, insertion holes matched with the insertion rods are formed in the middle shell and the right shell, rear clamping blocks are arranged on the rear side wall of the middle shell and the rear side wall of the left shell, and rear clamping grooves matched with the rear clamping blocks are formed in the rear side wall of the middle shell and the rear side wall of the right shell. According to the utility model, any number of middle shells can be spliced according to use requirements, the adaptability is good, rivets or screws are not needed for connection, the splicing steps are very simple and convenient, and the splicing efficiency is greatly improved.
Owner:YUEQING AULTOP ELECTRICAL CO LTD

Sending, receiving, returning and detecting integrated system for multiple SFP (Small Form-factor Pluggable) light sources

The invention relates to the technical field of SFP light source data detection, in particular to a sending and receiving return detection integrated system for multiple SFP light sources, which comprises a main control unit, an SFP optical module control unit and an ROSA device return signal measurement unit, the SFP optical module control unit comprises a multi-way switch chip U16, an indicating lamp module and a plurality of SFP optical module interfaces; the indicating lamp module and the plurality of SFP optical module interfaces are respectively connected with the multi-way switch chip U16; and the indicating lamp module is used for indicating the working states of the plurality of optical modules. According to the invention, the design is ingenious, the sending control of a plurality of SFP optical modules and the detection of received data return signals are realized, and the stability and reliability of data transmission are ensured; by integrating an ROSA device return signal measurement unit, the circuit can monitor the quality of a data return signal in real time, and powerful support is provided for network optimization and maintenance.
Owner:DONGGUAN YAOYE AUTOMATION CO LTD

Multi-way switch dynamic control platform based on multi-source data

The present invention discloses a multi-way switch dynamic control platform based on multi-source data, which relates to the field of electric switch technology. The system includes: obtaining multi-source data streams of the environment and multi-source data streams of the equipment operation, and simultaneously obtaining target scene behavior data, and encrypting and transmitting to a data processing module; mapping and preprocessing the collected data with multi-channel data preprocessing to obtain an application scene fusion data stream; obtaining key feature information of the application scene, constructing a switch control strategy solution space, matching and optimizing to obtain a target switch control strategy solution; and dynamically executing and controlling the multi-way switch device based on the target switch control strategy solution through a switch execution module. The system solves the technical problem that the existing multi-way switch control relies on a single data source and a fixed control strategy, is difficult to meet the needs of complex and changeable application scenarios, and results in insufficient flexibility and accuracy in the control of the switch state, and achieves the technical effect of improving the flexibility and accuracy of the multi-way switch control.
Owner:NANTONG YONGCHUN ELECTRONICS

Multi-path switching power supply and electronic device

The embodiment of the application provides a kind of multi-path switching power supply and electronic equipment, the multi-path switching power supply includes controller and multiple switching circuits, each switching circuit is connected with controller respectively and each switching circuit is adjacently arranged, wherein controller is used to control the current loop of at least two switching circuits respectively keeps opposite.It can be understood that, when multi-path switching power supply works, there are at least two or more switching circuits working simultaneously, and the current loop of at least two switching circuits is opposite, according to Ampere rule, the magnetic field direction generated by current loop is opposite, i.e. the magnetic field direction generated by at least two switching circuits is opposite, and since each switching circuit is adjacently arranged, the magnetic field generated by at least two switching circuits can weaken each other even cancel out, i.e. the magnetic field generated by multi-path switching power supply is weakened, so the electromagnetic interference generated by multi-path switching power supply is improved.
Owner:ZTE CORP

Time sequence synchronous trigger control method and system of LTD module multi-path pulse switch

The invention relates to the technical field of pulse power, in particular to a time sequence synchronous trigger control method for a multi-path pulse switch of an LTD module, which comprises the following steps: S01, measuring the inherent delay time of each discharge branch in the LTD module from trigger signal input to gas switch conduction; and S02, inputting the measured inherent delay time value of each branch into a pulse time sequence controller as a compensation parameter, and setting the delay time of each output channel of the pulse time sequence controller. Through system calibration and programmable delay compensation of the pulse time sequence controller, in combination with high-precision time sequence control of the FPGA, the multi-way switch conduction time deviation can be controlled at the nanosecond level, the energy synthesis efficiency is greatly improved, inductance isolation transmission is achieved through magnetic ring coupling, traditional resistance isolation is replaced, pulse leading edge distortion is avoided, and the energy synthesis efficiency is improved. And meanwhile, high-voltage isolation safety is guaranteed, and trigger signal transmission quality is stable.
Owner:ANTON FUSION (TAICANG) TECHNOLOGY CO LTD

Multiple location load control system

A multiple location dimming system may include a smart dimmer (e.g., a main load control device) and one or more remote dimmers (e.g., accessory devices) for controlling the amount of power delivered to a lighting load. The multiple location dimming system may be installed in place of a multiple location switch system (e.g., having three, four, or more multi-way switches), and may not require a neutral connection at any of the control devices of the multiple location dimming system. The main load control device and the accessory devices of the multiple location dimming system may be configured to display a present intensity level of a lighting load on one or more visual indicators. The accessory devices may have the same or different user interfaces as the main load control device, and may provide additional functionality over that which the main load control device offers.
Owner:LUTRON TECHNOLOGY COMPANY LLC

Bidirectional pressing self-generating wireless switch

The utility model discloses a bidirectional pressing self-generating wireless switch, which comprises a switch base, a button is detachably arranged on the switch base, a magnetic induction assembly is detachably arranged in the switch base, a magnetic assembly is movably arranged on the switch base, and the button is detachably arranged on the switch base. The magnetic induction assembly sleeves the outer side of the magnetic induction assembly, the switch base is provided with a PCB emission module placing area, the PCB emission module placing area is detachably provided with a PCB emission module, the PCB emission module 4 is arranged above the magnetic assembly, and the magnetic induction assembly, the magnetic assembly and the PCB emission module form a switch module. The switch modules realize bidirectional pressing operation under the action of the keys to form a self-power-generation wireless switch, the self-power-generation wireless switch comprises 1-3 keys to form a single-path or multi-path switch structure, and each key corresponds to a group of independent switch modules.
Owner:SHENZHEN WEIAN ELECTRIC TECHNOLOGY CO LTD

Miniaturized multi-path filter circuit

The utility model relates to multi -way input equipment technical field especially relates to a miniaturization multi -way filter circuit, including multi -way filter integrated module, multi -way switch module, switch control module, voltage sampling module and single computer piece, the multi -way filter integrated module is connected through multi -way switch module and inputs the interface, switch control module is connected with multi -way switch module, is used for controlling the switch of a certain road in multi -way switch module opens, voltage sampling module inputs the interface, is used for sampling the input voltage of each road, single computer piece is connected with switch control module and voltage sampling module respectively, is used for according to voltage sampling module's input voltage control switch control module that samples, the utility model provides a circuit design simple, size miniaturization, and cost minimization's miniaturization multi -way filter circuit.
Owner:CHANGZHOU WUJIN HGPOWER

Switching device with matrix type multi-way switch and matrix type multi-way switch

The invention discloses a matrix type multi-way switch which comprises a plurality of circuits distributed in a crossed mode, a circuit switch is arranged at each crossed point, and when the circuit switches at the crossed points are adjusted to be turned on or turned off, input ends and output ends can be connected at will, so that multi-pin contacts of each switch can be switched on or off through simple on-off operation. Connection switching between a plurality of input ends and a plurality of output ends is achieved, the circulation path of large current can be changed without complex circuit disassembly and assembly, loop switching is achieved, the problems of circuit abrasion, poor contact and the like caused by frequent disassembly and circuit reconnection in a traditional mode are solved, and the service life of the circuit is prolonged; meanwhile, the probability of circuit connection errors is reduced, the accuracy of circuit connection is improved, and then the stability of operation of the secondary circuit is guaranteed.
Owner:XIAN XD HIGH VOLTAGE SWTCHGEAR OPERATING MECHANISM CO LTD +1

Oven capable of carrying out steam assistance at directional gear

The oven comprises an oven body, a power panel and a water tank, an oven door is hinged to the surface of the oven body, an instrument panel is arranged at the top of the front end of the oven body, the power panel is arranged in the oven body, and a multi-way switch is arranged in the oven body and located on the instrument panel. A liquid expansion type temperature controller is arranged on the instrument panel and located on one side of the multi-way switch, the water tank is arranged in the oven, one end of the water tank is connected with a water conveying pipe, the water conveying pipe is provided with an electromagnetic valve, water is added in a directional gear mode, water can be injected only at a specific gear, mistaken water injection can be effectively avoided, and interference to normal operation of the oven is reduced. The water injection rate can be controlled according to a specific program, when the adjusting knob is rotated to a specified gear, the power panel receives a signal and activates a water injection key on the display operation panel, precise control is achieved, the electromagnetic valve is controlled by using a direct current (DC) 12V direct current, voltage is reduced from the source, and even in a humid environment or when a water path breaks down, the safety of a user can be guaranteed, and the user can use the water injection device at ease.
Owner:GUANGDONG ATLAN ELECTRONICS APPLIANCE MFG +1

Distribution box multi-way switch and wire inlet end structure thereof

The utility model discloses a distribution box multi-way switch and a wire inlet end structure thereof, and the wire inlet end structure of the distribution box multi-way switch comprises a plurality of wire inlet end copper bars, one end of each wire inlet end copper bar is connected with each wire inlet of a circuit breaker; the two ends of the parallel copper bar are used for being connected with the two wire inlet end copper bars, and the two wire inlet end copper bars connected with the parallel copper bar are connected with the same wire inlet end of the circuit breaker; and the power supply copper bars are arranged in one-to-one correspondence with the parallel copper bars, and two ends of the power supply copper bars are respectively connected with a power supply cable and the parallel copper bars. According to the utility model, the wiring mode is simple and convenient, the wiring layout in the distribution box after wiring is tidy, the logic is clear, the wiring efficiency and maintenance efficiency of the switch are improved, and the maintenance difficulty of the multi-way switch of the distribution box is reduced.
Owner:CHINA RAILWAY HUATIE ENG DESIGN GRP CO LTD

Power supply system and control method thereof, electronic equipment and storage medium

The invention provides a power supply system and a control method thereof, electronic equipment and a storage medium. The power supply system comprises a controller, a multi-way switching power supply and a current detection circuit, the current detection circuit is used for monitoring the temperature of each path of switching power supply and determining the adjusting current of each path of switching power supply based on the temperature; and the controller is used for determining the output current of each path of switching power supply according to the adjusting current. Therefore, temperature equalization among the multiple switching power supplies is realized, and the stability and power supply efficiency of the power supply system are improved.
Owner:HEFEI LCFC INFORMATION TECH

Wireless programmed switch for digital multimeter

The utility model discloses a wireless programmed switch for a digital multimeter, which is characterized by comprising a control circuit, a multi-path output circuit, a multi-path input circuit and a multi-path switch circuit, the input end of the multi-path output circuit is correspondingly connected with a plurality of first output ends on the control circuit, the output end of the multi-path output circuit is correspondingly connected with a plurality of input ends on the calibrator, and the input end of the multi-path input circuit is correspondingly connected with the output end of the multi-path output circuit. The output end of the multi-path input circuit is correspondingly connected with a plurality of first input ends on the control circuit, the output end of the multi-path output circuit is further correspondingly connected with the control end of the multi-path switching circuit, and a plurality of output ends of the calibrator are correspondingly connected with the input end of the multi-path switching circuit. And the output end of the multi-way switch circuit is correspondingly connected with a plurality of input ends of the digital multimeter. According to the utility model, the trouble of manual wire changing can be saved, and the calibration work efficiency of the digital multimeter is greatly improved.
Owner:GUANGZHOU INST OF MEASURING & TESTING TECH

Multiplex switch panel assembly and a method of installing the same

The present invention discloses a multiplex switch panel assembly and a method of installing the same. The multiplex switch panel assembly includes a plurality of front panel mounts and pushbutton switches. A printed circuit board (PCB) electrically connected to the plurality of front panel mounts pushbutton switches. A set of split mounting rings for each switch, configured to be installed around a respective switch on a front side of a panel after the assembly is inserted from a rear side of the panel, thereby preventing the switches from passing back through holes in the panel. A set of tensioning devices configured to secure the multiplex switch panel assembly in place from the rear side of the panel.
Owner:SPYDER CONTROLS CORP

Portable EIT data acquisition device

The invention discloses a portable EIT data acquisition device. The portable EIT data acquisition device comprises a microcontroller module, a current source excitation module, m multi-way switch modules, m 32 electrode arrays and an analog-to-digital converter module. The microcontroller controls the switch module to select injection and measurement electrodes according to a measurement mode, the current source excitation module generates alternating current signals and injects the alternating current signals into a measured field domain, and the electrode array collects voltage signals. And the analog-to-digital converter module converts the voltage signal into a digital signal and transmits the digital signal to the microcontroller, so that field impedance information is obtained, multi-electrode configuration is supported, and different measurement requirements are met. According to the invention, the problems of large size, poor expansibility and the like of existing equipment can be solved, and the most appropriate gain setting is adaptively selected through an automatic calibration technology, so that the measurement precision is improved; meanwhile, the multi-electrode requirement is met, different measurement conditions are adapted, more accurate electrical impedance distribution detection is achieved, and finally the application requirements of wearable equipment and mobile monitoring can be met.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

A steel ball spring assembly mechanism for a multi-way switch and its production line

The present invention relates to a steel ball spring assembly mechanism for a multi-way switch and a production line thereof. Automatic assembly of steel balls and springs to an assembly body is achieved through a positioning jig, a pre-assembly device, a connecting channel, a first feeding device, a second feeding device, a third feeding device, a first pushing device, a second pushing device, a third pushing device, and a fourth pushing device, thereby greatly improving production efficiency and ensuring assembly quality. Full-process automated operation of the multi-way switch is then achieved, greatly improving production efficiency and production quality of the multi-way switch.
Owner:GUANGDONG YUEHE INTELLIGENT TECH CO LTD

Railway power supply panel insulation detection device and method based on resistance voltage division

The invention belongs to the technical field of insulation detection of railway signal power supply panels, and relates to a railway power supply panel insulation detection device and method based on resistance voltage division. The output end of the program-controlled adjustable power supply module is connected to a power supply bus of a power supply screen; the power supply bus is electrically connected with each power supply module; the multi-way switch matrix module comprises (2n + 1) programmed switches from K0 to K2n; the resistor module comprises a plurality of resistors which are connected in series with each power supply loop and is used for converting the leakage current into a voltage division signal; the signal acquisition module is connected in parallel with the detection resistor module and is used for acquiring a voltage division signal; and the logic control and detection module is used for setting the output voltage of the program-controlled adjustable power supply module, controlling the on-off of the program-controlled switch, obtaining a partial voltage value based on the partial voltage signal and outputting a detection result. The insulation state of the power supply screen equipment or the power supply loop can be detected in real time, and the safety and reliability of a railway power supply system are ensured.
Owner:CHINA RAILWAY XIAN GRP CO LTD +1

A method and system for improving temperature compensation measurement accuracy of microwave power meter

The present invention discloses a method and system for improving the temperature compensation measurement accuracy of a microwave power meter, comprising: obtaining the standard power of a pre-selected temperature compensation power point under each path of a multi-way switch, and constructing a calibration rule according to the corresponding relationship between the standard power and the output power of a signal source; adjusting the output power of the signal source according to the path where the probe of the microwave power meter to be compensated is located by using the calibration rule of the corresponding path, and obtaining the compensation calibration value of the probe of the microwave power meter to be compensated at the current temperature according to the adjusted output power of the signal source. Each path is calibrated, and by adjusting the output power of the signal source, the power value entering the microwave power meter is ensured to be accurate, and the error introduced by the difference of each switch path is eliminated, thereby improving the temperature compensation measurement accuracy of the microwave power meter and improving the compensation efficiency.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Switch control electrical box and power distribution method

The present invention discloses a switch control electrical box and a power distribution method. The switch control electrical box includes a housing, and a conductive strip for centrally supplying power to each MOS transistor is embedded on the circuit board in the housing. Therefore, each MOS transistor serving as a switch inside the switch control electrical box can be installed on the circuit board relatively compactly, so that while the switch control electrical box has a multi-way switch control circuit, its volume is very small. When used in electrical equipment such as vehicles, it occupies little space and is more flexible to install. Since the power distribution method in the present invention is to supply power centrally through the conductive strip, the heat generation of the switch control electrical box is mainly concentrated on the conductive strip. By providing a conductive strip heat dissipation plate on one side of the housing, most of the heat generated by the switch control electrical box can be dissipated in time, and the conductive strip is erected by ribs on the conductive strip heat dissipation plate, which is more conducive to heat dissipation, prevents failures due to overheating during use, and extends the service life.
Owner:XINXIANG GUANGMING ELECTRIC APPLIANCE CO LTD

Device for measuring contact impedance between myoelectric multi-channel electrodes and biological organisms

The present application provides a device for measuring the contact impedance between an electromyographic multi-channel electrode and a biological organism, comprising: a control processor circuit, a power supply circuit, a measurement circuit, a first multi-way switch, a second multi-way switch, a third multi-way switch, a fourth multi-way switch, an electrode interface, and a ground interface; the control processor circuit is connected to other circuits and switches; the electrode interface is configured with a multi-way connector, and the multi-way connector is respectively connected to the first multi-way switch, the third multi-way switch, and the fourth multi-way switch; the measurement circuit is also respectively connected to the second multi-way switch and the ground interface; the second multi-way switch is also connected to the first multi-way switch; the first multi-way switch is also respectively connected to the third multi-way switch, the fourth multi-way switch, and the electrode interface; the third multi-way switch and the fourth multi-way switch are respectively connected to the electrode interface. The present application improves the accuracy of the contact impedance of the determined multi-channel electrode.
Owner:ONESENSE MEDICAL TECHNOLOGY (SUZHOU) CO LTD

Multi-switching-value signal synchronous acquisition and linear conditioning method and system

The invention belongs to the technical field of electrical equipment performance detection, and particularly relates to a multi-switching-value signal synchronous acquisition and linear conditioning method and system. Comprising a switching value detection circuit, a controller and a digital-to-analog conversion circuit. The controller adopts a single chip microcomputer to detect the switching value state output by the multi-path switching value detection circuit, the controller outputs a control signal to control an output voltage signal of the digital-to-analog conversion circuit according to the detected switching value signal state, and the output voltage signal of the digital-to-analog conversion circuit corresponds to the signal state of the input switching value group; the controller also outputs a PWM pulse signal to drive the switching value detection circuit to work; and the switching value loop collects a switching value signal of the tested equipment. The system has the advantages that multiple paths of switching value signals can be synchronously acquired, and the logic relation between the real-time state of multiple paths of switching values and the switching values is mastered; collected switching value signals can be compatible with dry nodes and wet nodes, the wet nodes can be compatible with alternating-current and direct-current voltages, and off-line and on-line detection requirements are met.
Owner:RES INST OF NUCLEAR POWER OPERATION +1

Multi-switch for vehicle

PCT designated stageWO2026019025A1Vehicle componentsMultiway switchingTouchpad
Provided is a multi-switch for a vehicle, which generates an input signal when a user applies pressure in the forward, backward, leftward, rightward, upward, and downward directions through a touch panel that is coupled to the top surface of a fixed housing so as to be movable in the forward, backward, left, right, upward, and downward directions, and which generates feedback for the user's forward, backward, leftward, rightward, upward, and downward inputs through a vibration unit provided in the touch panel, wherein the feedback is transmitted to a printed circuit board of the housing through an elastic member that provides the same restoring force with respect to the user's forward, backward, leftward, rightward, upward, and downward inputs, thus enabling prevention of a reduction in the lifespan of an electronic element. To this end, the multi-switch for a vehicle, according to an embodiment of the present invention, comprises: a housing in which a printed circuit board is installed; a touchpad that is movably installed on above the housing and senses a user's input; an elastic member disposed between the housing and the touchpad to prevent transmission of vibration; and a sensor that is installed on the printed circuit board and senses movement of the touchpad.
Owner:SEOYON ELECTRONICS CO LTD

Systems and methods for distributing electric power from a multi-phasic power source to a plurality of electronic devices

System and method for distributing electric power from a multi-phasic power source to electronic devices, the electric power being carried by a plurality of phases. The method comprises distributing, via a plurality of multi-way switching devices, electric power from the power source to a plurality of electronic devices, each multi-way switching device corresponding to a given electronic device and being configured to distribute a present phase thereto, accessing information about power consumption of the electronic devices, determining, based on said information, a present degree of electrical imbalance of the power source, and in response to the present degree of electrical imbalance being greater than a threshold, executing a load balancing routine including determining an adjusted phase to be distributed to at least one of the electronic devices and causing the at least one multi-way switching device to switch to an adjusted switching state.
Owner:OVH

Cascade circuit

Described herein is a cascade circuit comprising a controller configured to provide a set of control signals each having a high or low level value, and having a data port, and at least two multiplexers. And at least two multiplexers in a cascade arrangement electrically connected to the controller, respectively, each multiplexer including: a plurality of transmission pins configured to transmit a plurality of transmission signals communicated to the outside, respectively; and an output pin in communication with the data port, the plurality of transfer pins being respectively coupled to the output pin via a multi-way switching element. The respective output pins of the at least two multiplexers are collectively electrically connected to the data port, and signal communication with the data port of the controller is switched between the respective output pins of the at least two multiplexers.
Owner:TYCO ELECTRONICS (SHANGHAI) CO LTD +1

A micro switch assembly pull-up speed-acting structure

This invention discloses a pull-up quick-acting structure for a micro switch assembly. The micro switch assembly pull-up quick-acting structure includes: a support, a sliding washer, a support frame, a quick-jump spring support rod, a press-pull quick-jump spring, a quick-jump spring pressing rod, a micro switch assembly, and a pull rod. The beneficial effects of this invention are: by compressing and storing energy through the press-pull quick-jump spring and then triggering it in the opposite direction, the support is able to move quickly, effectively improving the switching speed of multi-pole switches and solving the problem of poor consistency in the switching action of multi-way switches. Simultaneously, the return spring and quick-jump assembly provide the product with good operating feel and feedback.
Owner:SHANGHAI AVIATION ELECTRIC

Safety calibration tool and method for electrical safety detection equipment of new energy automobile

The invention discloses a safety calibration tool for electrical safety detection equipment of a new energy automobile, which comprises a connector panel, a function switching panel and a metering standard device, and is characterized in that the connector panel is connected with the electrical safety detection equipment of the new energy automobile and comprises a national standard direct current charging socket, a national standard alternating current charging socket and a potential test connector; the function switching panel comprises a multi-way switch, the metering standard device comprises a voltmeter, a high-voltage high-value resistor, an ampere meter and a direct-current standard resistor, one end of the switch is connected with the national standard direct-current charging socket, the national standard alternating-current charging socket and the potential test connector, and the other end of the switch is connected with the high-voltage high-value resistor and the direct-current standard resistor; one-time stable connection is achieved through the special connector panel, current leakage and internal resistance abnormity caused by poor contact are avoided, and calibration errors are reduced in combination with the metering standard device; the connection interface does not need to be plugged and adjusted for many times, and different calibration items can be switched through switching operation of the function switching panel.
Owner:SHANGHAI QUALITY SUPERVISION & INSPECTION TECHNOLOGY RESEARCH INSTITUTE CO LTD

Marine multipath switching value alarm device

The utility model relates to a marine multi-way switching value alarm device, which comprises a panel, a cover plate, a mainboard assembly and a back plate which are sequentially distributed from front to back, the cover plate is provided with a stud and a mounting hole, the mainboard assembly comprises a circuit board and a line bank electrically connected to the back surface of the circuit board, and the line bank is connected with the back surface of the circuit board. The indicating lamp, the electronic button and the buzzer are electrically connected to the front face of the circuit board, and the connector bar is sequentially provided with an input end used for being externally connected with an alarm signal, a communication end used for being externally connected with the extension board, an output end used for controlling the indicating lamp and the buzzer to work and a power source end used for being externally connected with a power source. The cabin multi-area alarm device is mainly embedded in a cabinet body for use, has eight switching value detection input ends, can detect various switching value signal states on a ship, generates sound-light alarm of the corresponding state through the output end, and sends alarm information to an extension board through an RS485 communication protocol through the communication end, thereby realizing simultaneous alarm of multiple areas of a cabin.
Owner:WENZHOU JIANGNAN MARINE ELECTRICAL APP FACTORY